fix: remove nextauth from authorization params (#3332)

Co-authored-by: Balázs Orbán <info@balazsorban.com>

.dockerignore

@@ -1,4 +0,0 @@
-# Exclude directories we don't need from Docker context to improve build time
-node_modules
-www
-src

.env.example

@@ -1,15 +0,0 @@
-# Rename file to .env and populate values
-# to be able to run tests
-NEXTAUTH_URL=http://localhost:3000
-NEXTAUTH_TWITTER_ID=
-NEXTAUTH_TWITTER_SECRET=
-NEXTAUTH_TWITTER_USERNAME=
-NEXTAUTH_TWITTER_PASSWORD=
-NEXTAUTH_GITHUB_ID=
-NEXTAUTH_GITHUB_SECRET=
-NEXTAUTH_GITHUB_USERNAME=
-NEXTAUTH_GITHUB_PASSWORD=
-NEXTAUTH_GOOGLE_ID=
-NEXTAUTH_GOOGLE_SECRET=
-NEXTAUTH_GOOGLE_USERNAME=
-NEXTAUTH_GOOGLE_PASSWORD=

.github/CODEOWNERS

@@ -0,0 +1,2 @@
+/types/ @balazsorban44 @lluia
+/__tests__/ @lluia

.github/FUNDING.yml

@@ -1,3 +1,4 @@
 # https://docs.github.com/en/github/administering-a-repository/displaying-a-sponsor-button-in-your-repository
 
+open_collective: nextauth
 github: [balazsorban44]

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,34 +0,0 @@
----
-name: Bug report
-about: Report a defect with NextAuth.js
-labels: bug
-assignees: ''
----
-
-**Describe the bug**
-A clear and concise description of the bug in NextAuth.js.
-
-Do not report bugs with your own project here, ask from help by raising a question instead - this helps us a lot with administration overhead.
-
-**Steps to reproduce**
-Steps to reproduce the behavior.
-
-Include a link to public repository which can be used to reproduce the behaviour.
-
-**Expected behavior**
-A clear and concise description of what you expected to happen.
-
-**Screenshots or error logs**
-If applicable add screenshots or error logs to help explain the problem.
-
-**Additional context**
-Add any other context about the problem here.
-
-**Feedback**
-*Documentation refers to searching through [online documentation](https://next-auth.js.org), code comments and issue history. The example project refers to [next-auth-example](https://github.com/iaincollins/next-auth-example).*
-
-* [ ] Found the documentation helpful
-* [ ] Found documentation but was incomplete
-* [ ] Could not find relevant documentation
-* [ ] Found the example project helpful
-* [ ] Did not find the example project helpful

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -0,0 +1,97 @@
+name: Bug Report
+description: File a bug report
+labels: bug
+
+# note: markdown sections will NOT appear as part of the issue as per documentation, rather they provide context to the user
+# https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/syntax-for-githubs-form-schema#markdown
+
+
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report!
+        ### Important :exclamation:
+        Please help us maintain this project more efficiently! Before creating the issue make sure you shouldn't be creating it in one the below repos instead:
+        - Docs related: https://github.com/nextauthjs/docs
+        - Adapter related: https://github.com/nextauthjs/adapters
+        
+        If you are in the correct repo, then proceed by providing the following information:
+  - type: textarea
+    id: description
+    attributes: 
+      label: Description 🐜
+      description: Please provide a clear and concise description of the bug in NextAuth.js
+    validations:
+      required: true  
+
+  - type: dropdown
+    id: ownproject
+    attributes: 
+      label: Is this a bug in your own project?
+      description: 🚧 – _Do not report bugs with your own project here; ask for help [by raising a question instead](https://github.com/nextauthjs/next-auth/issues/new?assignees=&labels=question&template=question.md) or use the [Discussions tab](https://github.com/nextauthjs/next-auth/discussions) - this helps us reduce the maintenance overhead._
+      multiple: false
+      options:
+        - "Yes"
+        - "No"
+    validations:
+      required: true
+      
+  - type: textarea
+    id: reproduction
+    attributes:
+      label: How to reproduce ☕️ 
+      description: Please provide a link or code snippets to a minimal reproduction of the bug
+    validations:
+      required: true 
+  - type: markdown
+    attributes:
+      value: |
+        We encourage you to use one of the templates set up on **CodeSandbox** to reproduce your issue:
+        - [`next-auth-example`](https://codesandbox.io/s/next-auth-example-1kktb)
+        - [`next-auth-typescript-example`](https://codesandbox.io/s/next-auth-typescript-example-se32w)
+
+        🚧 – _If you don't provide any way to reproduce the bug, the issue is at risk of being closed._
+  
+  - type: textarea
+    id: logs
+    attributes: 
+      label: Screenshots / Logs 📽
+      description: We can address the bug you found much faster if you provide contextual screenshots or screen recordings showcasing the issue.
+  - type: markdown
+    attributes:
+      value: |
+        See [Kap](https://getkap.co/) for a good, easy-to-use, cross-platform screen recording tool.
+    validations:
+      required: false
+
+  - type: textarea
+    id: environment
+    attributes: 
+      label: Environment 🖥
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: |
+        Please run this command in your project's root folder:
+
+        ```sh
+        npx envinfo --system --binaries --browsers --npmPackages "next,next-auth,react"
+        ```
+ 
+  - type: dropdown
+    id: pr
+    attributes:
+      label: Contributing 🙌🏽
+      multiple: false
+      options:
+        - "Yes,  I am willing to help solve this bug in a PR"
+        - "No, I am afraid I cannot help regarding this"
+    validations:
+      required: true
+  - type: markdown
+    attributes: 
+      value: |
+        It takes a lot of work 🏋🏻‍♀️ maintaining a library like `next-auth`; any contribution is more than welcome 💚
+  

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,26 +0,0 @@
----
-name: Feature request
-about: Suggest an idea for NextAuth.js
-labels: enhancement
-assignees: ''
----
-
-**Summary of proposed feature**
-A clear and concise description of the feature being proposed.
-
-**Purpose of proposed feature**
-A clear and concise description of why this feature is necessary and what problems it solves.
-
-**Detail about proposed feature**
-A detailed description of how the proposal might work (if you have one).
-
-**Potential problems**
-Describe any potential problems or potential limitations or caveats that might apply to the proposed solution.
-
-**Describe any alternatives you've considered**
-A clear and concise description of any alternative options you've considered.
-
-**Additional context**
-Any other context, screenshots, etc.
-
-*Please indicate if you are willing and able to help implement the proposed feature.*

.github/ISSUE_TEMPLATE/feature_request.yaml

@@ -0,0 +1,73 @@
+name: Feature Request
+description: Suggest an idea for NextAuth.js
+labels: enhancement
+
+# note: markdown sections will NOT appear as part of the issue as per documentation, rather they provide context to the user
+# https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/syntax-for-githubs-form-schema#markdown
+
+body:
+  - type: markdown
+    attributes:
+      value: | 
+        Thank you very much for reaching out to us regarding the awesome feature that you believe should be included in the NextAuth.js library.
+        ### Important :exclamation:
+        Please help us maintain this project more efficiently! Before creating the issue make sure you shouldn't be creating it in one the below repos instead:
+        - Docs related: https://github.com/nextauthjs/docs
+        - Adapter related: https://github.com/nextauthjs/adapters
+        
+        If you are in the correct repo, then proceed by providing the following information:
+  
+  - type: textarea
+    id: description
+    attributes:
+      label: Description 📓
+      description: Please provide a more in-depth description of the feature proposed.
+    validations:
+      required: true
+
+  - type: markdown
+    attributes:
+      value: |
+        Make sure you provide plenty of [links]() to external documentation and inline code examples like so:
+
+        ```js
+        function myAwesomeNextAuthFeature() {
+          return 💚
+        }
+        ```
+
+        Take time thinking about what you want to say and help us understand your proposal making sure that this description contains:
+
+        - **purpose of the feature**
+        - **potential problems**
+        - **potential alternatives**
+
+  - type: textarea
+    id: reproduction
+    attributes:
+      label: How to reproduce ☕️ 
+      description: If you have a CodeSandbox playground or some code snippets to help us visualize your idea better, please provide it here.
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: |
+        You can use one of the templates set up on **CodeSandbox** to better illustrate your idea:
+
+        - [`next-auth-example`](https://codesandbox.io/s/next-auth-example-1kktb)
+        - [`next-auth-typescript-example`](https://codesandbox.io/s/next-auth-typescript-example-se32w)        
+
+  - type: dropdown
+    id: pr
+    attributes:
+      label: Contributing 🙌🏽
+      multiple: false
+      options:
+        - "Yes, I am willing to help implement this feature in a PR"
+        - "No, I am afraid I cannot help regarding this"
+    validations:
+      required: true
+  - type: markdown
+    attributes: 
+      value: |
+        It takes a lot of work 🏋🏻‍♀️ maintaining a library like `next-auth`; any contribution is more than welcome 💚

.github/ISSUE_TEMPLATE/question.md

@@ -1,25 +0,0 @@
----
-name: Question
-about: Ask a question about NextAuth.js or for help using it
-labels: question
-assignees: ''
----
-<!-- NOTE: Questions will be converted to Discussions. You can find them at https://github.com/nextauthjs/next-auth/discussions! -->
-
-**Your question**
-<!-- A clear and concise question. -->
-
-**What are you trying to do**
-<!-- A description of what you are trying to do, for context. -->
-
-**Reproduction**
-<!-- If your question is code related, adding a reproduction to your use case can greatly reduce the time it takes us to figure out how to better help you. -->
-
-**Feedback**
-*Documentation refers to searching through [online documentation](https://next-auth.js.org), code comments and issue history. The example project refers to [next-auth-example](https://github.com/iaincollins/next-auth-example).*
-
-* [ ] Found the documentation helpful
-* [ ] Found documentation but was incomplete
-* [ ] Could not find relevant documentation
-* [ ] Found the example project helpful
-* [ ] Did not find the example project helpful

.github/ISSUE_TEMPLATE/question.yaml

@@ -0,0 +1,62 @@
+name: Question
+description: Ask a question about NextAuth.js or for help using it
+labels: question
+
+# note: markdown sections will NOT appear as part of the issue as per documentation, rather they provide context to the user
+# https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/syntax-for-githubs-form-schema#markdown
+
+body:
+
+  - type: markdown
+    attributes:
+      value: |
+        We are glad that you have a question about this library. Please provide the following information:
+
+  - type: textarea
+    id: question
+    attributes:
+      label: Question 💬
+      description: Please provide an in-depth description of the question you have.
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: |   
+        Make sure you [link]() to external documentation if necessary and provide inline code examples like so:
+
+        ```js
+        function myAwesomeNextAuthFeature() {
+          return 💚
+        }
+        ```
+
+        **NOTE:** Questions will be converted to Discussions. You can find them [here](https://github.com/nextauthjs/next-auth/discussions)!    
+
+  - type: textarea
+    id: reproduction
+    attributes: 
+      label: How to reproduce ☕️ 
+      description: Please provide a link to a minimal reproduction or code snippets that represents your question
+    validations:
+      required: true 
+  - type: markdown
+    attributes:
+      value: |
+        We encourage you to use the template set-up on **CodeSandbox** as a playground to represent your question or doubt:
+        - [`next-auth-example`](https://codesandbox.io/s/next-auth-example-1kktb)
+  
+  - type: dropdown
+    id: pr
+    attributes:
+      label: Contributing 🙌🏽
+      multiple: false
+      options:
+        - "Yes, I am willing to help answer this question in a PR"
+        - "No, I am afraid I cannot help regarding this"
+    validations:
+      required: true
+  - type: markdown
+    attributes: 
+      value: |
+        It takes a lot of work 🏋🏻‍♀️ maintaining a library like `next-auth`; any contribution is more than welcome 💚
+  

.github/ISSUE_TEMPLATE/typescript.yaml

@@ -0,0 +1,58 @@
+name: TypeScript
+description: Ask a question about NextAuth.js TypeScript integration
+labels: [question, TypeScript]
+assignees: [lluia, balazsorban44]
+
+# note: markdown sections will NOT appear as part of the issue as per documentation, rather they provide context to the user
+# https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/syntax-for-githubs-form-schema#markdown
+
+body:
+  - type: textarea
+    id: question
+    attributes:
+      label: Question 💬
+      description: Please provide an in-depth description of the question you have when using NextAuth.js on a Typescript project or when consuming the built-in types for `next-auth`.
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: |
+        Make sure you [link]() to external documentation if necessary and provide inline code examples like so:
+
+        ```js
+        function myAwesomeNextAuthFeature() {
+          return 💚
+        }
+        ```
+
+        **NOTE:** Questions will be converted to Discussions. You can find them [here](https://github.com/nextauthjs/next-auth/discussions)!    
+
+  - type: textarea
+    id: codesandbox
+    attributes: 
+      label: How to reproduce ☕️ 
+      description: Please provide a link to a minimal reproduction or code snippets that represents your question
+    validations:
+      required: true 
+  - type: markdown
+    attributes:
+      value: |
+        We encourage you to use the template set-up on **CodeSandbox** as a playground to represent your question or doubt:
+        - [`next-auth-typescript-example`](https://codesandbox.io/s/next-auth-typescript-example-se32w)
+  
+
+  - type: dropdown
+    id: pr
+    attributes:
+      label: Contributing 🙌🏽
+      multiple: false
+      options:
+        - "Yes, I am willing to help answer this question in a PR"
+        - "No, I am afraid I cannot help regarding this"
+    validations:
+      required: true
+  - type: markdown
+    attributes: 
+      value: |
+        It takes a lot of work 🏋🏻‍♀️ maintaining a library like `next-auth`; any contribution is more than welcome 💚
+  

.github/PULL_REQUEST_TEMPLATE.md

@@ -16,26 +16,33 @@ merge of your pull request!
 
 <!-- What changes are being made? (What feature/bug is being fixed here?) -->
 
-**What**:
+## Reasoning 💡
 
-<!-- Why are these changes necessary? -->
+<!-- What changes are being made? What feature/bug is being fixed here? -->
 
-**Why**:
+## Checklist 🧢
 
-<!-- How were these changes implemented? -->
+<!-- Feel free cross items ( like this `~[] item~` ) if they're irrelevant to your changes.
 
-**How**:
-
-<!-- Have you done all of these things?  -->
-
-**Checklist**:
-
-<!-- add "N/A" to the end of each line that's irrelevant to your changes -->
-<!-- to check an item, place an "x" in the box like so: "- [x] Documentation" -->
+To check an item, place an `x` in the box like so: `- [x] Documentation`. -->
 
 - [ ] Documentation
 - [ ] Tests
 - [ ] Ready to be merged
-      <!-- In your opinion, is this ready to be merged as soon as it's reviewed? -->
 
-<!-- feel free to add additional comments -->
+<!-- In your opinion, is this ready to be merged as soon as it's reviewed? -->
+
+## Affected issues 🎟
+
+<!--
+Please [scout and link issues](https://github.com/nextauthjs/next-auth/issues) that might be solved by this PR.
+
+If you write `"Fixes"` or `"Closes"` before the issue link like so:
+
+```
+Fixes #359
+```
+
+the connected issue will be automatically closed once the PR is merged and hence help with maintenance of the library 😊
+
+-->

.github/labeler.yml

@@ -2,23 +2,15 @@ test:
   - test/**/*
   - types/tests/**/*
 
-documentation:
-  - www/**/*
-  - ./**/*.md
-
 providers:
   - src/providers/**/*
-  - www/docs/configuration/providers.md
   - test/integration/**/*
 
 adapters:
   - src/adapters/**/*
-  - www/docs/schemas/adapters.md
 
 databases:
-  - www/docs/schemas/*.md
   - test/docker/databases/**/*
-  - www/docs/configuration/databases.md
   - test/fixtures/**/*
 
 core:
@@ -29,11 +21,9 @@ style:
 
 client:
   - src/client/**/*
-  - www/docs/getting-started/client.md
 
 pages:
   - src/server/pages/**/*
-  - www/docs/configuration/pages.md
 
 TypeScript:
   - types/**/*

.github/workflows/build.yml

@@ -1,32 +0,0 @@
-# Simple check that the build is valid and no linting errors.
-# Currently is run as a seperate workflow as it's fast to fail.
-name: Lint/Build
-
-on:
-  push:
-    branches: 
-     - main
-     - beta
-     - next
-  pull_request:
-    branches:
-     - main
-     - beta
-     - next
-
-jobs:
-  lint-and-build:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node-version: [10, 12, 14]
-    steps:
-      - uses: actions/checkout@v2
-      - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v1
-        with:
-          node-version: ${{ matrix.node-version }}
-      - name: Install dependencies
-        uses: bahmutov/npm-install@v1
-      - run: npm run lint
-      - run: npm run build

.github/workflows/codeql-analysis.yml

@@ -1,67 +1,27 @@
-# For most projects, this workflow file will not need changing; you simply need
-# to commit it to your repository.
-#
-# You may wish to alter this file to override the set of languages analyzed,
-# or to provide custom queries or build logic.
-#
-# ******** NOTE ********
-# We have attempted to detect the languages in your repository. Please check
-# the `language` matrix defined below to confirm you have the correct set of
-# supported CodeQL languages.
-#
-name: "CodeQL"
+name: Code Analysis
 
 on:
   push:
-    branches: [ main, beta, next ]
+    branches: [main, beta, next]
   pull_request:
-    # The branches below must be a subset of the branches above
-    branches: [ main ]
+    branches: [main]
   schedule:
-    - cron: '43 17 * * 2'
+    - cron: "43 17 * * 2"
 
 jobs:
   analyze:
-    name: Analyze
+    name: Verify
     runs-on: ubuntu-latest
-
     strategy:
       fail-fast: false
       matrix:
-        language: [ 'javascript' ]
-        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
-        # Learn more:
-        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
-
+        language: ["javascript"]
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      with:
-        languages: ${{ matrix.language }}
-        # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file.
-        # Prefix the list here with "+" to use these queries and those in the config file.
-        # queries: ./path/to/local/query, your-org/your-repo/queries@main
-
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
-
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
-
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
-
-    #- run: |
-    #   make bootstrap
-    #   make release
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v1
+        with:
+          languages: ${{ matrix.language }}
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v1

.github/workflows/integration.yml

@@ -1,57 +0,0 @@
-name: Integration Test
-
-on:
-  push:
-    branches:
-      - main
-      - beta
-      - next
-  pull_request:
-
-jobs:
-  test:
-    # Only run tests integration against Pull Requests from branches in
-    # this repository. We do this as integration tests require access to
-    # secrets in GitHub and they are not exposed to tests run against
-    # forks (for security reasons), so integration test against
-    # Pull Requests from external repos just fail and generate noise.
-    if: github.event.pull_request.head.repo.full_name == github.repository
-
-    # We use self-hosted runners as cloud based runnners (e.g. AWS, GPC)
-    # fail due to IP Address checks done by providers, which enforce
-    # CAPTCHA checks on login request from cloud compute IP addresses to
-    # prevent abuse.
-    runs-on: self-hosted
-
-    # Target time is under 5 minutes to run all tests. If it takes longer than
-    # 10 minutes should look at running tests in parallel. No individual flow
-    # should take longer than 5 minutes to build and run.
-    timeout-minutes: 10
-
-    strategy:
-      matrix:
-        node-version: [10, 12, 14]
-
-    steps:
-      - uses: actions/checkout@v2
-      - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v1
-        with:
-          node-version: ${{ matrix.node-version }}
-
-      - name: Install dependencies
-        uses: bahmutov/npm-install@v1
-
-      # Run tests (build library, build + start test app in Docker, run tests)
-      - run: npm test
-        # TODO Tests should exit out if env vars not set (currently hangs)
-        env:
-          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
-          NEXTAUTH_TWITTER_ID: ${{secrets.NEXTAUTH_TWITTER_ID}}
-          NEXTAUTH_TWITTER_SECRET: ${{secrets.NEXTAUTH_TWITTER_SECRET}}
-          NEXTAUTH_TWITTER_USERNAME: ${{secrets.NEXTAUTH_TWITTER_USERNAME}}
-          NEXTAUTH_TWITTER_PASSWORD: ${{secrets.NEXTAUTH_TWITTER_PASSWORD}}
-          NEXTAUTH_GITHUB_ID: ${{secrets.NEXTAUTH_GITHUB_ID}}
-          NEXTAUTH_GITHUB_SECRET: ${{secrets.NEXTAUTH_GITHUB_SECRET}}
-          NEXTAUTH_GITHUB_USERNAME: ${{secrets.NEXTAUTH_GITHUB_USERNAME}}
-          NEXTAUTH_GITHUB_PASSWORD: ${{secrets.NEXTAUTH_GITHUB_PASSWORD}}

.github/workflows/labeler.yml

@@ -1,11 +1,13 @@
-name: "Pull Request Labeler"
+name: PR Labeler
+
 on:
-- pull_request_target
+  - pull_request_target
 
 jobs:
   triage:
+    name: Triage
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/labeler@main
-      with:
-        repo-token: "${{ secrets.GITHUB_TOKEN }}"
+      - uses: actions/labeler@main
+        with:
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/release.yml

@@ -1,4 +1,5 @@
 name: Release
+
 on:
   push:
     branches:
@@ -7,20 +8,79 @@ on:
       - "next"
       - "3.x"
   pull_request:
+
 jobs:
-  release:
-    name: "Release"
+  test:
+    name: Test
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
+      - name: Init
         uses: actions/checkout@v2
-      - name: Setup Node.js
+      - name: Setup Node
         uses: actions/setup-node@v1
         with:
-          node-version: 14
-      - name: Install dependencies
+          node-version: 16
+      - name: Dependencies
         uses: bahmutov/npm-install@v1
-      - run: npx semantic-release@17
+      - name: Build
+        run: npm run build
+      - name: Run tests
+        run: npm test -- --coverage --verbose
+      - name: Coverage
+        uses: codecov/codecov-action@v1
+        with:
+          directory: ./coverage
+          fail_ci_if_error: false
+  release-branch:
+    name: Publish branch
+    runs-on: ubuntu-latest
+    needs: test
+    if: ${{ github.event_name == 'push' }}
+    environment: Production
+    steps:
+      - name: Init
+        uses: actions/checkout@v2
+      - name: Setup Node
+        uses: actions/setup-node@v1
+        with:
+          node-version: 16
+      - name: Dependencies
+        uses: bahmutov/npm-install@v1
+      - name: Publish to npm and GitHub
+        run: npx semantic-release@17
         env:
-          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
-          NPM_TOKEN: ${{secrets.NPM_TOKEN}}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+  release-pr:
+    name: Publish PR
+    runs-on: ubuntu-latest
+    needs: test
+    if: ${{ github.event_name == 'pull_request' }}
+    environment: Preview
+    steps:
+      - name: Init
+        uses: actions/checkout@v2
+      - name: Setup Node
+        uses: actions/setup-node@v1
+        with:
+          node-version: 16
+      - name: Dependencies
+        uses: bahmutov/npm-install@v1
+      - name: Determine version
+        uses: ./config/version-pr
+        id: determine-version
+        env:
+          PR_NUMBER: ${{ github.event.number }}
+      - name: Publish to npm
+        run: |
+          echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> .npmrc
+          npm publish --access public --tag experimental
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+      - name: Comment version on PR
+        uses: NejcZdovc/comment-pr@v1
+        with:
+          message: "🎉 Experimental release [published on npm](https://www.npmjs.com/package/next-auth/v/${{ env.VERSION }})!\n\n```sh\nnpm i next-auth@${{ env.VERSION }}\n```\n```sh\nyarn add next-auth@${{ env.VERSION }}\n```"
+        env:
+          VERSION: ${{ steps.determine-version.outputs.version }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/types.yml

@@ -1,25 +0,0 @@
-name: Types
-
-on:
-  push:
-    branches:
-      - main
-      - beta
-      - next
-  pull_request:
-    branches:
-      - main
-      - beta
-      - next
-
-jobs:
-  lint-and-build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Use Node.js
-        uses: actions/setup-node@v1
-      - name: Install dependencies
-        uses: bahmutov/npm-install@v1
-      - name: Check types
-        run: npm run test:types

.gitignore

@@ -20,31 +20,31 @@ node_modules
 .next
 /build
 /dist
-/www/build
 
 # Generated files
 .docusaurus
 .cache-loader
-.next
-www/providers.json
-src/providers/index.js
-internals
-adapters.d.ts
-adapters.js
-client.d.ts
-client.js
-index.d.ts
-index.js
-jwt.d.ts
-jwt.js
-providers.d.ts
-providers.js
+/providers
+/src/providers/oauth-types.ts
+/client
+/css
+/lib
+/core
+/jwt
+/react
+/adapters.d.ts
+/index.d.ts
+/index.js
+/next
 
 # Development app
-app/next-auth
-app/dist/css
+app/src/css
 app/package-lock.json
 app/yarn.lock
+app/prisma/migrations
+app/prisma/dev.db*
+app/dist
+app/next-auth
 
 # VS
 /.vs/slnx.sqlite-journal
@@ -52,9 +52,15 @@ app/yarn.lock
 /.vs
 .vscode
 
+# Jetbrains
+.idea
+
 # GitHub Actions runner
 /actions-runner
 /_work
 
 # Prisma migrations
-/prisma/migrations
+/prisma/migrations
+
+# Tests
+/coverage

.husky/.gitignore

@@ -0,0 +1 @@
+_

.husky/pre-commit

@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+# npx pretty-quick --staged

CODE_OF_CONDUCT.md

@@ -14,22 +14,22 @@ appearance, race, religion, or sexual identity and orientation.
 Examples of behavior that contributes to creating a positive environment
 include:
 
-* Using welcoming and inclusive language
-* Being respectful of differing viewpoints and experiences
-* Gracefully accepting constructive criticism
-* Focusing on what is best for the community
-* Showing empathy towards other community members
+- Using welcoming and inclusive language
+- Being respectful of differing viewpoints and experiences
+- Gracefully accepting constructive criticism
+- Focusing on what is best for the community
+- Showing empathy towards other community members
 
 Examples of unacceptable behavior by participants include:
 
-* The use of sexualized language or imagery and unwelcome sexual attention or
-advances
-* Trolling, insulting/derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or electronic
-address, without explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
-professional setting
+- The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+- Trolling, insulting/derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+- Other conduct which could reasonably be considered inappropriate in a
+  professional setting
 
 ## Our Responsibilities
 
@@ -55,11 +55,11 @@ further defined and clarified by project maintainers.
 ## Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting me@iaincollins.com. All complaints will be reviewed and
-investigated and will result in a response that is deemed necessary and
-appropriate to the circumstances. The project team is obligated to maintain
-confidentiality with regard to the reporter of an incident. Further details of
-specific enforcement policies may be posted separately.
+reported by contacting me@iaincollins.com or info@balazsorban.com and yo@ndo.dev.
+All complaints will be reviewed and investigated and will result in a response
+that is deemed necessary and appropriate to the circumstances. The project team
+is obligated to maintain confidentiality with regard to the reporter of an
+incident. Further details of specific enforcement policies may be posted separately.
 
 Project maintainers who do not follow or enforce the Code of Conduct in good
 faith may face temporary or permanent repercussions as determined by other

CONTRIBUTING.md

@@ -11,43 +11,49 @@ Please raise any significant new functionality or breaking change an issue for d
 ## For contributors
 
 Anyone can be a contributor. Either you found a typo, or you have an awesome feature request you could implement, we encourage you to create a Pull Request.
+
 ### Pull Requests
 
-* The latest changes are always in `main`, so please make your Pull Request against that branch.
-* Pull Requests should be raised for any change
-* Pull Requests need approval of a [core contributor](https://next-auth.js.org/contributors#core-team) before merging
-* We use ESLint/Prettier for linting/formatting, so please run `npm run lint:fix` before committing to make resolving conflicts easier (VSCode users, check out [this ESLint extension](https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint) and [this Prettier extension](https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode) to fix lint and formatting issues in development)
-* We encourage you to test your changes, and if you have the opportunity, please make those tests part of the Pull Request
-* If you add new functionality, please provide the corresponding documentation as well and make it part of the Pull Request
+- The latest changes are always in `main`, so please make your Pull Request against that branch.
+- Pull Requests should be raised for any change
+- Pull Requests need approval of a [core contributor](https://next-auth.js.org/contributors#core-team) before merging
+- We use ESLint/Prettier for linting/formatting, so please run `npm run lint:fix` before committing to make resolving conflicts easier (VSCode users, check out [this ESLint extension](https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint) and [this Prettier extension](https://marketplace.visualstudio.com/items?itemName=esbenp.prettier-vscode) to fix lint and formatting issues in development)
+- We encourage you to test your changes, and if you have the opportunity, please make those tests part of the Pull Request
+- If you add new functionality, please provide the corresponding documentation as well and make it part of the Pull Request
 
 ### Setting up local environment
 
-A quick guide on how to setup *next-auth* locally to work on it and test out any changes:
+A quick guide on how to setup _next-auth_ locally to work on it and test out any changes:
+
+The developer application requires you to use `npm@7`.
 
 1. Clone the repo:
+
 ```sh
 git clone git@github.com:nextauthjs/next-auth.git
 cd next-auth
 ```
 
-2. Install packages:
+2. Install packages and set up the developer application:
+
 ```sh
-npm i && npm dev:setup
+npm run dev:setup
 ```
 
 3. Populate `.env.local`:
-   
-    Copy `app/.env.local.example` to `app/.env.local`, and add your env variables for each provider you want to test.
+
+   Copy `app/.env.local.example` to `app/.env.local`, and add your env variables for each provider you want to test.
 
 > NOTE: You can add any environment variables to .env.local that you would like to use in your dev app.
 > You can find the next-auth config under`app/pages/api/auth/[...nextauth].js`.
 
-1. Start the dev application/server:
+1. Start the developer application/server:
+
 ```sh
 npm run dev
 ```
 
-Your dev application will be available on ```http://localhost:3000```
+Your developer application will be available on `http://localhost:3000`
 
 That's it! 🎉
 
@@ -55,15 +61,16 @@ If you need an example project to link to, you can use [next-auth-example](https
 
 #### Hot reloading
 
-When running `npm run dev`, you start a Next.js dev server on `http://localhost:3000`, which includes hot reloading out of the box. Make changes on any of the files in `src` and see the changes immediately.
+When running `npm run dev`, you start a Next.js developer server on `http://localhost:3000`, which includes hot reloading out of the box. Make changes on any of the files in `src` and see the changes immediately.
 
-> NOTE: When working on CSS, you will have to manually refresh the page after changes. The reason for this is our pages using CSS are server-side rendered. (Improving this through a PR is very welcome!)
+> NOTE: When working on CSS, you will have to manually refresh the page after changes. The reason for this is our pages using CSS are server-side rendered (using API routes). (Improving this through a PR is very welcome!)
 
 > NOTE: The setup is as follows: The development application lives inside the `app` folder, and whenever you make a change to the `src` folder in the root (where next-auth is), it gets copied into `app` every time (gitignored), so Next.js can pick them up and apply hot reloading. This is to avoid some annoying issues with how symlinks are working with different React builds, and also to provide a super-fast feedback loop while developing core features.
 
 #### Providers
 
 If you think your custom provider might be useful to others, we encourage you to open a PR and add it to the built-in list so others can discover it much more easily! You only need to add two changes:
+
 1. Add your config: [`src/providers/{provider}.js`](https://github.com/nextauthjs/next-auth/tree/main/src/providers) (Make sure you use a named default export, like `export default function YourProvider`!)
 2. Add provider documentation: [`www/docs/providers/{provider}.md`](https://github.com/nextauthjs/next-auth/tree/main/www/docs/providers)
 
@@ -73,57 +80,43 @@ You can look at the existing built-in providers for inspiration.
 
 #### Databases
 
-Included is a Docker Compose file that starts up MySQL, PostgreSQL, and MongoDB databases on localhost.
-
-It will use port `3306`, `5432`, and `27017` on localhost respectively; please make sure those ports are not used by other services on localhost.
-
-You can start them with `npm run db:start` and stop them with `npm run db:stop`.
-
-You will need Docker and Docker Compose installed to be able to start / stop the databases.
-
-When stopping the databases, it will reset their contents.
-
+If you would like to contribute to an existing database adapter or help create a new one, head over to the [nextauthjs/adapters](https://www.github.com/nextauthjs/adapters) repository and follow the instructions provided there.
 #### Testing
 
 Tests can be run with `npm run test`.
 
 Automated tests are currently crude and limited in functionality, but improvements are in development.
-
-Currently, to run tests you need to first have started local test databases (e.g. using `npm run db:start`).
-
-The databases can take a few seconds to start up, so you might need to give it a minute before running the tests.
-
 ## For maintainers
 
-We use [semantic-release](https://github.com/semantic-release/semantic-release) together with [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0) to automate releases. This makes the maintainenance process easier and less error-prone to human error. Please study the "Conventional Commits" site to understand how to write a good commit message.
+We use [semantic-release](https://github.com/semantic-release/semantic-release) together with [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0) to automate releases. This makes the maintenance process easier and less error-prone to human error. Please study the "Conventional Commits" site to understand how to write a good commit message.
 
 When accepting Pull Requests, make sure the following:
 
-* Use "Squash and merge"
-* Make sure you merge contributor PRs into `main`
-* Rewrite the commit message to conform to the `Conventional Commits` style. Check the "Recommended Scopes" section for further advice.
-* Optionally link issues the PR will resolve (You can add "close" in front of the issue numbers to close the issues automatically, when the PR is merged. `semantic-release` will also comment back to connected issues and PRs, notifying the users that a feature is added/bug fixed, etc.)
+- Use "Squash and merge"
+- Make sure you merge contributor PRs into `main`
+- Rewrite the commit message to conform to the `Conventional Commits` style. Check the "Recommended Scopes" section for further advice.
+- Optionally link issues the PR will resolve (You can add "close" in front of the issue numbers to close the issues automatically, when the PR is merged. `semantic-release` will also comment back to connected issues and PRs, notifying the users that a feature is added/bug fixed, etc.)
 
 ### Recommended Scopes
 
 A typical conventional commit looks like this:
+
 ```
 type(scope): title
 
 body
 ```
 
-Scope is the part that will help groupping the different commit types in the release notes.
+Scope is the part that will help grouping the different commit types in the release notes.
 
-Some recommened scopes are:
+Some recommended scopes are:
 
 - **provider** - Provider related changes. (eg.: "feat(provider): add X provider", "docs(provider): fix typo in X documentation"
 - **adapter** - Adapter related changes. (eg.: "feat(adapter): add X provider", "docs(provider): fix typo in X documentation"
 - **db** - Database related changes. (eg.: "feat(db): add X database", "docs(db): fix typo in X documentation"
 - **deps** - Adding/removing/updating a dependency (eg.: "chore(deps): add X")
-  
-> NOTE: If you are not sure which scope to use, you can simply ignore it. (eg.: "feat: add something"). Adding the correct type already helps a lot when analyzing the commit messages.
 
+> NOTE: If you are not sure which scope to use, you can simply ignore it. (eg.: "feat: add something"). Adding the correct type already helps a lot when analyzing the commit messages.
 
 ### Skipping a release
 

Dockerfile

@@ -1,30 +0,0 @@
-# Multi stage build to allow us to improve performance
-FROM node:10-alpine as base
-WORKDIR /usr/src/app
-
-# Install basic dependancies (Next.js, React)
-COPY test/docker/app/package*.json ./
-RUN npm ci --only=production
-
-FROM node:10-alpine as app
-COPY --from=base /usr/src/app ./
-
-# Copy last build of library into the image and install dependences for it.
-# This ensures the build is valid and package.json contains everything needed
-# to actually run the library.
-# Note: You must run `npm run build` first to build a release of the library
-RUN mkdir -p node_modules/next-auth
-# Copy all entrypoints for the library (if creating a new one, add it here)
-COPY index.js providers.js adapters.js client.js jwt.js node_modules/next-auth/
-# Copy the dist dir
-COPY dist node_modules/next-auth/dist
-# Copy the package.json for the library and install it's dependences
-COPY package*.json node_modules/next-auth/
-RUN cd node_modules/next-auth/ && npm ci --only=production
-
-# Copy test pages across
-COPY test/docker/app/pages ./pages
-
-RUN npm run build
-
-CMD [ "npm", "start" ]

README.md

@@ -7,11 +7,8 @@
    Open Source. Full Stack. Own Your Data.
    </p>
    <p align="center" style="align: center;">
-      <a href="https://github.com/nextauthjs/next-auth/actions?query=workflow%3ARelease">
-        <img src="https://github.com/nextauthjs/next-auth/workflows/Release/badge.svg" alt="Release" />
-      </a>
-      <a href="https://github.com/nextauthjs/next-auth/actions?query=workflow%3A%22Integration+Test%22">
-        <img src="https://github.com/nextauthjs/next-auth/workflows/Integration%20Test/badge.svg" alt="Integration Test" />
+      <a href="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml?query=workflow%3ARelease">
+        <img src="https://github.com/nextauthjs/next-auth/actions/workflows/release.yml/badge.svg" alt="Release" />
       </a>
       <a href="https://bundlephobia.com/result?p=next-auth">
         <img src="https://img.shields.io/bundlephobia/minzip/next-auth" alt="Bundle Size"/>
@@ -35,13 +32,18 @@ NextAuth.js is a complete open source authentication solution for [Next.js](http
 
 It is designed from the ground up to support Next.js and Serverless.
 
+This is the core repo for NextAuth.js. Check the repos below if you are interested in additional information:
+
+- Docs related: https://github.com/nextauthjs/docs
+- Adapter related: https://github.com/nextauthjs/adapters
+
 ## Getting Started
 
 ```
 npm install --save next-auth
 ```
 
-The easiest way to continue getting started, is to follow the [getting started](https://next-auth.js.org/getting-started/example) section in our docs. 
+The easiest way to continue getting started, is to follow the [getting started](https://next-auth.js.org/getting-started/example) section in our docs.
 
 We also have a section of [tutorials](https://next-auth.js.org/tutorials) for those looking for more specific examples.
 
@@ -51,96 +53,120 @@ See [next-auth.js.org](https://next-auth.js.org) for more information and docume
 
 ### Flexible and easy to use
 
-* Designed to work with any OAuth service, it supports OAuth 1.0, 1.0A and 2.0
-* Built-in support for [many popular sign-in services](https://next-auth.js.org/configuration/providers)
-* Supports email / passwordless authentication
-* Supports stateless authentication with any backend (Active Directory, LDAP, etc)
-* Supports both JSON Web Tokens and database sessions
-* Designed for Serverless but runs anywhere (AWS Lambda, Docker, Heroku, etc…)
+- Designed to work with any OAuth service, it supports OAuth 1.0, 1.0A and 2.0
+- Built-in support for [many popular sign-in services](https://next-auth.js.org/configuration/providers)
+- Supports email / passwordless authentication
+- Supports stateless authentication with any backend (Active Directory, LDAP, etc)
+- Supports both JSON Web Tokens and database sessions
+- Designed for Serverless but runs anywhere (AWS Lambda, Docker, Heroku, etc…)
 
 ### Own your own data
 
 NextAuth.js can be used with or without a database.
 
-* An open source solution that allows you to keep control of your data
-* Supports Bring Your Own Database (BYOD) and can be used with any database
-* Built-in support for [MySQL, MariaDB, Postgres, Microsoft SQL Server, MongoDB and SQLite](https://next-auth.js.org/configuration/databases)
-* Works great with databases from popular hosting providers
-* Can also be used *without a database* (e.g. OAuth + JWT)
+- An open source solution that allows you to keep control of your data
+- Supports Bring Your Own Database (BYOD) and can be used with any database
+- Built-in support for [MySQL, MariaDB, Postgres, Microsoft SQL Server, MongoDB and SQLite](https://next-auth.js.org/configuration/databases)
+- Works great with databases from popular hosting providers
+- Can also be used _without a database_ (e.g. OAuth + JWT)
 
 ### Secure by default
 
-* Promotes the use of passwordless sign in mechanisms
-* Designed to be secure by default and encourage best practice for safeguarding user data
-* Uses Cross Site Request Forgery Tokens on POST routes (sign in, sign out)
-* Default cookie policy aims for the most restrictive policy appropriate for each cookie
-* When JSON Web Tokens are enabled, they are signed by default (JWS) with HS512
-* Use JWT encryption (JWE) by setting the option `encryption: true` (defaults to A256GCM)
-* Auto-generates symmetric signing and encryption keys for developer convenience
-* Features tab/window syncing and keepalive messages to support short lived sessions
-* Attempts to implement the latest guidance published by [Open Web Application Security Project](https://owasp.org/)
+- Promotes the use of passwordless sign-in mechanisms
+- Designed to be secure by default and encourage best practices for safeguarding user data
+- Uses Cross-Site Request Forgery (CSRF) Tokens on POST routes (sign in, sign out)
+- Default cookie policy aims for the most restrictive policy appropriate for each cookie
+- When JSON Web Tokens are enabled, they are signed by default (JWS) with HS512
+- Use JWT encryption (JWE) by setting the option `encryption: true` (defaults to A256GCM)
+- Auto-generates symmetric signing and encryption keys for developer convenience
+- Features tab/window syncing and session polling to support short lived sessions
+- Attempts to implement the latest guidance published by [Open Web Application Security Project](https://owasp.org)
 
-Advanced options allow you to define your own routines to handle controlling what accounts are allowed to sign in, for encoding and decoding JSON Web Tokens and to set custom cookie security policies and session properties, so you can control who is able to sign in and how often sessions have to be re-validated. 
+Advanced options allow you to define your own routines to handle controlling what accounts are allowed to sign in, for encoding and decoding JSON Web Tokens and to set custom cookie security policies and session properties, so you can control who is able to sign in and how often sessions have to be re-validated.
 
 ### TypeScript
 
-NextAuth.js comes with built-in types. For more information and usage, check out the [TypeScript section](https://next-auth.js.org/getting-started/typescript) in the documentaion.
-
-The package at `@types/next-auth` is now deprecated.
+NextAuth.js comes with built-in types. For more information and usage, check out
+the [TypeScript section](https://next-auth.js.org/getting-started/typescript) in the documentation.
 
 ## Example
 
 ### Add API Route
 
 ```javascript
-import NextAuth from 'next-auth'
-import Providers from 'next-auth/providers'
+// pages/api/auth/[...nextauth].js
+import NextAuth from "next-auth"
+import AppleProvider from "next-auth/providers/apple"
+import GoogleProvider from "next-auth/providers/google"
+import EmailProvider from "next-auth/providers/email"
 
 export default NextAuth({
+  secret: process.env.SECRET,
   providers: [
     // OAuth authentication providers
-    Providers.Apple({
+    AppleProvider({
       clientId: process.env.APPLE_ID,
-      clientSecret: process.env.APPLE_SECRET
+      clientSecret: process.env.APPLE_SECRET,
     }),
-    Providers.Google({
+    GoogleProvider({
       clientId: process.env.GOOGLE_ID,
-      clientSecret: process.env.GOOGLE_SECRET
+      clientSecret: process.env.GOOGLE_SECRET,
     }),
     // Sign in with passwordless email link
-    Providers.Email({
+    EmailProvider({
       server: process.env.MAIL_SERVER,
-      from: '<no-reply@example.com>'
+      from: "<no-reply@example.com>",
     }),
   ],
-  // SQL or MongoDB database (or leave empty)
-  database: process.env.DATABASE_URL
 })
 ```
 
-### Add React Component
+### Add React Hook
+
+The `useSession()` React Hook in the NextAuth.js client is the easiest way to check if someone is signed in.
 
 ```javascript
-import {
-  useSession, signIn, signOut
-} from 'next-auth/client'
+import { useSession, signIn, signOut } from "next-auth/react"
 
 export default function Component() {
-  const [ session, loading ] = useSession()
-  if(session) {
-    return <>
-      Signed in as {session.user.email} <br/>
-      <button onClick={() => signOut()}>Sign out</button>
-    </>
+  const { data: session } = useSession()
+  if (session) {
+    return (
+      <>
+        Signed in as {session.user.email} <br />
+        <button onClick={() => signOut()}>Sign out</button>
+      </>
+    )
   }
-  return <>
-    Not signed in <br/>
-    <button onClick={() => signIn()}>Sign in</button>
-  </>
+  return (
+    <>
+      Not signed in <br />
+      <button onClick={() => signIn()}>Sign in</button>
+    </>
+  )
 }
 ```
 
-## Acknowledgements
+### Share/configure session state
+
+Use the `<SessionProvider>` to allows instances of `useSession()` to share the session object across components. It also takes care of keeping the session updated and synced between tabs/windows.
+
+```jsx title="pages/_app.js"
+import { SessionProvider } from "next-auth/react"
+
+export default function App({
+  Component, 
+  pageProps: { session, ...pageProps }
+}) {
+  return (
+    <SessionProvider session={session}>
+      <Component {...pageProps} />
+    </SessionProvider>
+  )
+}
+```
+
+## Acknowledgments
 
 [NextAuth.js is made possible thanks to all of its contributors.](https://next-auth.js.org/contributors)
 
@@ -148,17 +174,62 @@ export default function Component() {
   <img width="500px" src="https://contrib.rocks/image?repo=nextauthjs/next-auth" />
 </a>
 <div>
-<a href="https://vercel.com?utm_source=nextauthjs&utm_campaign=oss">
-<img width="170px" src="https://raw.githubusercontent.com/nextauthjs/next-auth/canary/www/static/img/powered-by-vercel.svg" alt="Powered By Vercel" />
-</a>
-</div>
-<div>
-<p align="left">Thanks to Vercel sponsoring this project by allowing it to be deployed for free for the entire NextAuth.js Team</p>
+<a href="https://vercel.com?utm_source=nextauthjs&utm_campaign=oss"></a>
 </div>
 
+### Support
+
+We're happy to announce we've recently created an [OpenCollective](https://opencollective.org/nextauth) for individuals and companies looking to contribute financially to the project!
+
+<!--sponsors start-->
+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="top">
+        <a href="https://vercel.com" target="_blank">
+          <img width="128px" src="https://avatars.githubusercontent.com/u/14985020?v=4" alt="Vercel Logo" />
+        </a><br />
+        <div>Vercel</div><br />
+        <sub>🥉 Bronze Financial Sponsor <br /> ☁️ Infrastructure Support</sub>
+      </td>
+      <td align="center" valign="top">
+        <a href="https://prisma.io" target="_blank">
+          <img width="128px" src="https://avatars.githubusercontent.com/u/17219288?v=4" alt="Prisma Logo" />
+        </a><br />
+        <div>Prisma</div><br />
+        <sub>🥉 Bronze Financial Sponsor</sub>
+      </td>
+      <td align="center" valign="top">
+        <a href="https://clerk.dev" target="_blank">
+          <img width="128px" src="https://avatars.githubusercontent.com/u/49538330?s=200&v=4" alt="Prisma Logo" />
+        </a><br />
+        <div>Clerk</div><br />
+        <sub>🥉 Bronze Financial Sponsor</sub>
+      </td>
+      <td align="center" valign="top">
+        <a href="https://checklyhq.com" target="_blank">
+          <img width="128px" src="https://avatars.githubusercontent.com/u/25982255?v=4" alt="Checkly Logo" />
+        </a><br />
+        <div>Checkly</div><br />
+        <sub>☁️ Infrastructure Support</sub>
+      </td>
+      <td align="center" valign="top">
+        <a href="https://superblog.ai/" target="_blank">
+          <img width="128px" src="https://d33wubrfki0l68.cloudfront.net/cdc4a3833bd878933fcc131655878dbf226ac1c5/10cd6/images/logo_bolt_small.png" alt="superblog Logo" />
+        </a><br />
+        <div>superblog</div><br />
+        <sub>☁️ Infrastructure Support</sub>
+      </td>
+    </tr><tr></tr>
+  </tbody>
+</table>
+<br />
+<!--sponsors end-->
+
 ## Contributing
 
-We're open to all community contributions! If you'd like to contribute in any way, please first read our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/canary/CONTRIBUTING.md).
+We're open to all community contributions! If you'd like to contribute in any way, please first read
+our [Contributing Guide](https://github.com/nextauthjs/next-auth/blob/canary/CONTRIBUTING.md).
 
 ## License
 

SECURITY.md

@@ -14,11 +14,11 @@ We request that you contact us directly to report serious issues that might impa
 
 If you contact us regarding a serious issue:
 
-* We will endeavor to get back to you within 72 hours.
-* We will aim to publish a fix within 30 days.
-* We will disclose the issue (and credit you, with your consent) once a fix to resolve the issue has been released.
-* If 90 days has elapsed and we still don't have a fix, we will disclose the issue publically.
+- We will endeavor to get back to you within 72 hours.
+- We will aim to publish a fix within 30 days.
+- We will disclose the issue (and credit you, with your consent) once a fix to resolve the issue has been released.
+- If 90 days has elapsed and we still don't have a fix, we will disclose the issue publicly.
 
-Currently, the best way to report an issue is by emailing me@iaincollins.com
+Currently, the best way to report an issue is by contacting us via email at me@iaincollins.com or info@balazsorban.com and yo@ndo.dev.
 
 For less serious issues (e.g. RFC compliance for unsupported flows or potential issues that may cause a problem future or default behaviour / options) it is appropriate to submit these these publically as bug reports or feature requests or to raise a question to open a discussion around them.

app/.env.local.example

@@ -4,30 +4,42 @@
 NEXTAUTH_URL=http://localhost:3000
 
 # You can use `openssl rand -hex 32` or 
-# https://generate-secret.now.sh/32 to generate a secret.
+# https://generate-secret.vercel.app/32 to generate a secret.
 # Note: Changing a secret may invalidate existing sessions
-# and/or verificaion tokens.
-SECRET= 
+# and/or verification tokens.
+SECRET=secret
 
 AUTH0_ID=
-AUTH0_DOMAIN=
 AUTH0_SECRET=
+AUTH0_ISSUER=
+
+KEYCLOAK_ID=
+KEYCLOAK_SECRET=
+KEYCLOAK_ISSUER=
+
+IDS4_ID=
+IDS4_SECRET=
+IDS4_ISSUER=
 
 GITHUB_ID=
 GITHUB_SECRET=
 
+TWITCH_ID=
+TWITCH_SECRET=
+
 TWITTER_ID=
 TWITTER_SECRET=
 
+LINE_ID=
+LINE_SECRET=
+
 # Example configuration for a Gmail account (will need SMTP enabled)
 EMAIL_SERVER=smtps://user@gmail.com:password@smtp.gmail.com:465
 EMAIL_FROM=user@gmail.com
 
-# You can use any of these as the "DATABASE_URL" for
-# databases started with Docker using `npm run db:start`.
 # Note: If using with Prisma adapter, you need to use a `.env`
 # file rather than a `.env.local` file to configure env vars.
 # Postgres: DATABASE_URL=postgres://nextauth:password@127.0.0.1:5432/nextauth?synchronize=true
 # MySQL:    DATABASE_URL=mysql://nextauth:password@127.0.0.1:3306/nextauth?synchronize=true
 # MongoDB:  DATABASE_URL=mongodb://nextauth:password@127.0.0.1:27017/nextauth?synchronize=true
-DATABASE_URL=
+DATABASE_URL=

app/.nvmrc

@@ -0,0 +1 @@
+16

app/components/access-denied.js

@@ -1,17 +1,18 @@
-import { signIn } from 'next-auth/client'
+import { signIn } from "next-auth/react"
 
-export default function AccessDenied () {
+export default function AccessDenied() {
   return (
     <>
       <h1>Access Denied</h1>
       <p>
         <a
-          href='/api/auth/signin'
+          href="/api/auth/signin"
           onClick={(e) => {
             e.preventDefault()
             signIn()
           }}
-        >You must be signed in to view this page
+        >
+          You must be signed in to view this page
         </a>
       </p>
     </>

app/components/footer.js

@@ -1,17 +1,29 @@
-import Link from 'next/link'
-import styles from './footer.module.css'
-import { version } from 'package.json'
+import Link from "next/link"
+import styles from "./footer.module.css"
+import packageJSON from "package.json"
 
-export default function Footer () {
+export default function Footer() {
   return (
     <footer className={styles.footer}>
       <hr />
       <ul className={styles.navItems}>
-        <li className={styles.navItem}><a href='https://next-auth.js.org'>Documentation</a></li>
-        <li className={styles.navItem}><a href='https://www.npmjs.com/package/next-auth'>NPM</a></li>
-        <li className={styles.navItem}><a href='https://github.com/nextauthjs/next-auth-example'>GitHub</a></li>
-        <li className={styles.navItem}><Link href='/policy'><a>Policy</a></Link></li>
-        <li className={styles.navItem}><em>{version}</em></li>
+        <li className={styles.navItem}>
+          <a href="https://next-auth.js.org">Documentation</a>
+        </li>
+        <li className={styles.navItem}>
+          <a href="https://www.npmjs.com/package/next-auth">NPM</a>
+        </li>
+        <li className={styles.navItem}>
+          <a href="https://github.com/nextauthjs/next-auth-example">GitHub</a>
+        </li>
+        <li className={styles.navItem}>
+          <Link href="/policy">
+            <a>Policy</a>
+          </Link>
+        </li>
+        <li className={styles.navItem}>
+          <em>{packageJSON.version}</em>
+        </li>
       </ul>
     </footer>
   )

app/components/header.js

@@ -1,22 +1,22 @@
-import Link from 'next/link'
-import { signIn, signOut, useSession } from 'next-auth/client'
-import styles from './header.module.css'
+import Link from "next/link"
+import { signIn, signOut, useSession } from "next-auth/react"
+import styles from "./header.module.css"
 
 // The approach used in this component shows how to built a sign in and sign out
 // component that works on pages which support both client and server side
 // rendering, and avoids any flash incorrect content on initial page load.
-export default function Header () {
-  const [session, loading] = useSession()
+export default function Header() {
+  const { data: session, status } = useSession()
 
   return (
     <header>
       <noscript>
-        <style>{'.nojs-show { opacity: 1; top: 0; }'}</style>
+        <style>{".nojs-show { opacity: 1; top: 0; }"}</style>
       </noscript>
       <div className={styles.signedInStatus}>
         <p
           className={`nojs-show ${
-            !session && loading ? styles.loading : styles.loaded
+            !session && status === "loading" ? styles.loading : styles.loaded
           }`}
         >
           {!session && (
@@ -25,7 +25,7 @@ export default function Header () {
                 You are not signed in
               </span>
               <a
-                href='/api/auth/signin'
+                href="/api/auth/signin"
                 className={styles.buttonPrimary}
                 onClick={(e) => {
                   e.preventDefault()
@@ -39,18 +39,16 @@ export default function Header () {
           {session && (
             <>
               {session.user.image && (
-                <span
-                  style={{ backgroundImage: `url(${session.user.image})` }}
-                  className={styles.avatar}
-                />
+                <img src={session.user.image} className={styles.avatar} />
               )}
               <span className={styles.signedInText}>
                 <small>Signed in as</small>
                 <br />
-                <strong>{session.user.email || session.user.name}</strong>
+                <strong>{session.user.email} </strong>
+                {session.user.name ? `(${session.user.name})` : null}
               </span>
               <a
-                href='/api/auth/signout'
+                href="/api/auth/signout"
                 className={styles.button}
                 onClick={(e) => {
                   e.preventDefault()
@@ -66,42 +64,42 @@ export default function Header () {
       <nav>
         <ul className={styles.navItems}>
           <li className={styles.navItem}>
-            <Link href='/'>
+            <Link href="/">
               <a>Home</a>
             </Link>
           </li>
           <li className={styles.navItem}>
-            <Link href='/client'>
+            <Link href="/client">
               <a>Client</a>
             </Link>
           </li>
           <li className={styles.navItem}>
-            <Link href='/server'>
+            <Link href="/server">
               <a>Server</a>
             </Link>
           </li>
           <li className={styles.navItem}>
-            <Link href='/protected'>
+            <Link href="/protected">
               <a>Protected</a>
             </Link>
           </li>
           <li className={styles.navItem}>
-            <Link href='/protected-ssr'>
+            <Link href="/protected-ssr">
               <a>Protected(SSR)</a>
             </Link>
           </li>
           <li className={styles.navItem}>
-            <Link href='/api-example'>
+            <Link href="/api-example">
               <a>API</a>
             </Link>
           </li>
           <li className={styles.navItem}>
-            <Link href='/credentials'>
+            <Link href="/credentials">
               <a>Credentials</a>
             </Link>
           </li>
           <li className={styles.navItem}>
-            <Link href='/email'>
+            <Link href="/email">
               <a>Email</a>
             </Link>
           </li>

app/jsconfig.json

@@ -1,5 +0,0 @@
-{
-  "compilerOptions": {
-    "baseUrl": "."
-  }
-}

app/next-env.d.ts

@@ -1,2 +1,6 @@
 /// <reference types="next" />
 /// <reference types="next/types/global" />
+/// <reference types="next/image-types/global" />
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/basic-features/typescript for more information.

app/next.config.js

@@ -2,18 +2,29 @@ const path = require("path")
 
 module.exports = {
   webpack(config) {
+    config.experiments = {
+      topLevelAwait: true,
+    }
     config.resolve = {
       ...config.resolve,
       alias: {
         ...config.resolve.alias,
-        "next-auth$": path.join(process.cwd(), "next-auth/server"),
-        "next-auth/client$": path.join(process.cwd(), "next-auth/client"),
-        "next-auth/jwt$": path.join(process.cwd(), "next-auth/lib/jwt"),
-        "next-auth/adapters": path.join(process.cwd(), "next-auth/adapters"),
-        "next-auth/providers": path.join(process.cwd(), "next-auth/providers"),
+        react: path.join(process.cwd(), "node_modules/react"),
+        nodemailer: path.join(process.cwd(), "node_modules/nodemailer"),
+        "react-dom": path.join(process.cwd(), "node_modules/react-dom"),
+        "react/jsx-dev-runtime": path.join(
+          process.cwd(),
+          "node_modules/react/jsx-dev-runtime"
+        ),
       },
     }
 
     return config
   },
+  typescript: {
+    ignoreBuildErrors: true,
+  },
+  experimental: {
+    externalDir: true,
+  },
 }

app/package.json

@@ -4,22 +4,31 @@
   "description": "NextAuth.js Developer app",
   "private": true,
   "scripts": {
-    "dev": "npm-run-all --parallel copy:app dev:css dev:next",
+    "clean": "rm -rf .next",
+    "dev": "npm-run-all --parallel dev:next watch:css copy:css ",
     "dev:next": "next dev",
-    "copy:app": "cpx \"../src/**/*\" next-auth --watch",
-    "copy:css": "cpx \"../dist/css/**/*\" dist/css --watch",
+    "build": "next build",
+    "copy:css": "cpx \"../css/**/*\" src/css --watch",
     "watch:css": "cd .. && npm run watch:css",
-    "dev:css": "npm-run-all --parallel watch:css copy:css",
-    "start": "next start"
+    "start": "next start",
+    "email": "npx fake-smtp-server",
+    "start:email": "email"
   },
   "license": "ISC",
   "dependencies": {
-    "next": "^10.1.3",
+    "@next-auth/fauna-adapter": "0.2.2-next.4",
+    "@next-auth/prisma-adapter": "0.5.2-next.5",
+    "@prisma/client": "^2.29.1",
+    "fake-smtp-server": "^0.8.0",
+    "faunadb": "^4.3.0",
+    "next": "^11.1.0",
+    "nodemailer": "^6.6.3",
     "react": "^17.0.2",
     "react-dom": "^17.0.2"
   },
   "devDependencies": {
     "cpx": "^1.5.0",
-    "npm-run-all": "^4.1.5"
+    "npm-run-all": "^4.1.5",
+    "prisma": "^2.29.1"
   }
 }

app/pages/_app.js

@@ -1,31 +1,10 @@
-import { Provider } from "next-auth/client"
+import { SessionProvider } from "next-auth/react"
 import "./styles.css"
 
-// Use the <Provider> to improve performance and allow components that call
-// `useSession()` anywhere in your application to access the `session` object.
 export default function App({ Component, pageProps }) {
   return (
-    <Provider
-      // Provider options are not required but can be useful in situations where
-      // you have a short session maxAge time. Shown here with default values.
-      options={{
-        // Client Max Age controls how often the useSession in the client should
-        // contact the server to sync the session state. Value in seconds.
-        // e.g.
-        // * 0  - Disabled (always use cache value)
-        // * 60 - Sync session state with server if it's older than 60 seconds
-        clientMaxAge: 0,
-        // Keep Alive tells windows / tabs that are signed in to keep sending
-        // a keep alive request (which extends the current session expiry) to
-        // prevent sessions in open windows from expiring. Value in seconds.
-        //
-        // Note: If a session has expired when keep alive is triggered, all open
-        // windows / tabs will be updated to reflect the user is signed out.
-        keepAlive: 0,
-      }}
-      session={pageProps.session}
-    >
+    <SessionProvider session={pageProps.session}>
       <Component {...pageProps} />
-    </Provider>
+    </SessionProvider>
   )
 }

app/pages/api/auth/[...nextauth].js

@@ -1,87 +0,0 @@
-import NextAuth from 'next-auth'
-import Providers from 'next-auth/providers'
-
-// import Adapters from 'next-auth/adapters'
-// import { PrismaClient } from '@prisma/client'
-// const prisma = new PrismaClient()
-
-export default NextAuth({
-  // Used to debug https://github.com/nextauthjs/next-auth/issues/1664
-  // cookies: {
-  //   csrfToken: {
-  //     name: 'next-auth.csrf-token',
-  //     options: {
-  //       httpOnly: true,
-  //       sameSite: 'none',
-  //       path: '/',
-  //       secure: true
-  //     }
-  //   },
-  //   pkceCodeVerifier: {
-  //     name: 'next-auth.pkce.code_verifier',
-  //     options: {
-  //       httpOnly: true,
-  //       sameSite: 'none',
-  //       path: '/',
-  //       secure: true
-  //     }
-  //   }
-  // },
-  providers: [
-    Providers.Email({
-      server: process.env.EMAIL_SERVER,
-      from: process.env.EMAIL_FROM
-    }),
-    Providers.GitHub({
-      clientId: process.env.GITHUB_ID,
-      clientSecret: process.env.GITHUB_SECRET
-    }),
-    Providers.Auth0({
-      clientId: process.env.AUTH0_ID,
-      clientSecret: process.env.AUTH0_SECRET,
-      domain: process.env.AUTH0_DOMAIN,
-      // Used to debug https://github.com/nextauthjs/next-auth/issues/1664
-      // protection: ["pkce", "state"],
-      // authorizationParams: {
-      //   response_mode: 'form_post'
-      // }
-      protection: 'pkce'
-    }),
-    Providers.Twitter({
-      clientId: process.env.TWITTER_ID,
-      clientSecret: process.env.TWITTER_SECRET
-    }),
-    Providers.Credentials({
-      name: 'Credentials',
-      credentials: {
-        password: { label: 'Password', type: 'password' }
-      },
-      async authorize (credentials) {
-        if (credentials.password === 'password') {
-          return {
-            id: 1,
-            name: 'Fill Murray',
-            email: 'bill@fillmurray.com',
-            image: 'https://www.fillmurray.com/64/64'
-          }
-        }
-        return null
-      }
-    })
-  ],
-  jwt: {
-    encryption: true,
-    secret: process.env.SECRET
-  },
-  debug: false,
-  theme: 'auto'
-
-  // Default Database Adapter (TypeORM)
-  // database: process.env.DATABASE_URL
-
-  // Prisma Database Adapter
-  // To configure this app to use the schema in `prisma/schema.prisma` run:
-  // npx prisma generate
-  // npx prisma migrate dev --preview-feature
-  // adapter: Adapters.Prisma.Adapter({ prisma })
-})

app/pages/api/auth/[...nextauth].ts

@@ -0,0 +1,190 @@
+import NextAuth, { NextAuthOptions } from "next-auth"
+import EmailProvider from "next-auth/providers/email"
+import GitHubProvider from "next-auth/providers/github"
+import Auth0Provider from "next-auth/providers/auth0"
+import KeycloakProvider from "next-auth/providers/keycloak"
+import TwitterProvider from "next-auth/providers/twitter"
+import CredentialsProvider from "next-auth/providers/credentials"
+import IDS4Provider from "next-auth/providers/identity-server4"
+import Twitch from "next-auth/providers/twitch"
+import GoogleProvider from "next-auth/providers/google"
+import FacebookProvider from "next-auth/providers/facebook"
+import FoursquareProvider from "next-auth/providers/foursquare"
+// import FreshbooksProvider from "next-auth/providers/freshbooks"
+import GitlabProvider from "next-auth/providers/gitlab"
+import InstagramProvider from "next-auth/providers/instagram"
+import LineProvider from "next-auth/providers/line"
+import LinkedInProvider from "next-auth/providers/linkedin"
+import MailchimpProvider from "next-auth/providers/mailchimp"
+import DiscordProvider from "next-auth/providers/discord"
+import AzureADProvider from "next-auth/providers/azure-ad"
+import SpotifyProvider from "next-auth/providers/spotify"
+import CognitoProvider from "next-auth/providers/cognito"
+import SlackProvider from "next-auth/providers/slack"
+import Okta from "next-auth/providers/okta"
+import AzureB2C from "next-auth/providers/azure-ad-b2c"
+import OsuProvider from "next-auth/providers/osu"
+import AppleProvider from "next-auth/providers/apple"
+
+// import { PrismaAdapter } from "@next-auth/prisma-adapter"
+// import { PrismaClient } from "@prisma/client"
+// const prisma = new PrismaClient()
+// const adapter = PrismaAdapter(prisma)
+
+// import { Client as FaunaClient } from "faunadb"
+// import { FaunaAdapter } from "@next-auth/fauna-adapter"
+
+// const client = new FaunaClient({
+//   secret: process.env.FAUNA_SECRET,
+//   domain: process.env.FAUNA_DOMAIN,
+// })
+// const adapter = FaunaAdapter(client)
+export const authOptions: NextAuthOptions = {
+  // adapter,
+  providers: [
+    // E-mail
+    // Start fake e-mail server with `npm run start:email`
+    // EmailProvider({
+    //   server: {
+    //     host: "127.0.0.1",
+    //     auth: null,
+    //     secure: false,
+    //     port: 1025,
+    //     tls: { rejectUnauthorized: false },
+    //   },
+    // }),
+    // Credentials
+    CredentialsProvider({
+      name: "Credentials",
+      credentials: {
+        password: { label: "Password", type: "password" },
+      },
+      async authorize(credentials) {
+        if (credentials.password === "pw") {
+          return {
+            name: "Fill Murray",
+            email: "bill@fillmurray.com",
+            image: "https://www.fillmurray.com/64/64",
+          }
+        }
+        return null
+      },
+    }),
+    // OAuth 1
+    TwitterProvider({
+      clientId: process.env.TWITTER_ID,
+      clientSecret: process.env.TWITTER_SECRET,
+    }),
+    // OAuth 2 / OIDC
+    GitHubProvider({
+      clientId: process.env.GITHUB_ID,
+      clientSecret: process.env.GITHUB_SECRET,
+    }),
+    Auth0Provider({
+      clientId: process.env.AUTH0_ID,
+      clientSecret: process.env.AUTH0_SECRET,
+      issuer: process.env.AUTH0_ISSUER,
+    }),
+    KeycloakProvider({
+      clientId: process.env.KEYCLOAK_ID,
+      clientSecret: process.env.KEYCLOAK_SECRET,
+      issuer: process.env.KEYCLOAK_ISSUER,
+    }),
+    Twitch({
+      clientId: process.env.TWITCH_ID,
+      clientSecret: process.env.TWITCH_SECRET,
+    }),
+    GoogleProvider({
+      clientId: process.env.GOOGLE_ID,
+      clientSecret: process.env.GOOGLE_SECRET,
+    }),
+    FacebookProvider({
+      clientId: process.env.FACEBOOK_ID,
+      clientSecret: process.env.FACEBOOK_SECRET,
+    }),
+    FoursquareProvider({
+      clientId: process.env.FOURSQUARE_ID,
+      clientSecret: process.env.FOURSQUARE_SECRET,
+    }),
+    // FreshbooksProvider({
+    //   clientId: process.env.FRESHBOOKS_ID,
+    //   clientSecret: process.env.FRESHBOOKS_SECRET,
+    // }),
+    GitlabProvider({
+      clientId: process.env.GITLAB_ID,
+      clientSecret: process.env.GITLAB_SECRET,
+    }),
+    InstagramProvider({
+      clientId: process.env.INSTAGRAM_ID,
+      clientSecret: process.env.INSTAGRAM_SECRET,
+    }),
+    LineProvider({
+      clientId: process.env.LINE_ID,
+      clientSecret: process.env.LINE_SECRET,
+    }),
+    LinkedInProvider({
+      clientId: process.env.LINKEDIN_ID,
+      clientSecret: process.env.LINKEDIN_SECRET,
+    }),
+    MailchimpProvider({
+      clientId: process.env.MAILCHIMP_ID,
+      clientSecret: process.env.MAILCHIMP_SECRET,
+    }),
+    IDS4Provider({
+      clientId: process.env.IDS4_ID,
+      clientSecret: process.env.IDS4_SECRET,
+      issuer: process.env.IDS4_ISSUER,
+    }),
+    DiscordProvider({
+      clientId: process.env.DISCORD_ID,
+      clientSecret: process.env.DISCORD_SECRET,
+    }),
+    AzureADProvider({
+      clientId: process.env.AZURE_AD_CLIENT_ID,
+      clientSecret: process.env.AZURE_AD_CLIENT_SECRET,
+      tenantId: process.env.AZURE_AD_TENANT_ID,
+      profilePhotoSize: 48,
+    }),
+    SpotifyProvider({
+      clientId: process.env.SPOTIFY_ID,
+      clientSecret: process.env.SPOTIFY_SECRET,
+    }),
+    CognitoProvider({
+      clientId: process.env.COGNITO_ID,
+      clientSecret: process.env.COGNITO_SECRET,
+      issuer: process.env.COGNITO_ISSUER,
+    }),
+    Okta({
+      clientId: process.env.OKTA_ID,
+      clientSecret: process.env.OKTA_SECRET,
+      issuer: process.env.OKTA_ISSUER,
+    }),
+    SlackProvider({
+      clientId: process.env.SLACK_ID,
+      clientSecret: process.env.SLACK_SECRET,
+    }),
+    AzureB2C({
+      clientId: process.env.AZURE_B2C_ID,
+      clientSecret: process.env.AZURE_B2C_SECRET,
+      tenantId: process.env.AZURE_B2C_TENANT_ID,
+      primaryUserFlow: process.env.AZURE_B2C_PRIMARY_USER_FLOW,
+    }),
+    OsuProvider({
+      clientId: process.env.OSU_CLIENT_ID,
+      clientSecret: process.env.OSU_CLIENT_SECRET,
+    }),
+    AppleProvider({
+      clientId: process.env.APPLE_ID,
+      clientSecret: process.env.APPLE_SECRET,
+    }),
+  ],
+  secret: process.env.SECRET,
+  debug: true,
+  theme: {
+    colorScheme: "auto",
+    logo: "https://next-auth.js.org/img/logo/logo-sm.png",
+    brandColor: "#1786fb",
+  },
+}
+
+export default NextAuth(authOptions)

app/pages/api/examples/jwt.js

@@ -1,9 +1,7 @@
 // This is an example of how to read a JSON Web Token from an API route
-import jwt from 'next-auth/jwt'
-
-const secret = process.env.SECRET
+import { getToken } from "next-auth/jwt"
 
 export default async (req, res) => {
-  const token = await jwt.getToken({ req, secret })
+  const token = await getToken({ req, secret: process.env.SECRET })
   res.send(JSON.stringify(token, null, 2))
 }

app/pages/api/examples/protected.js

@@ -1,12 +1,17 @@
 // This is an example of to protect an API route
-import { getSession } from 'next-auth/client'
+import { getSession } from "next-auth/react"
 
 export default async (req, res) => {
   const session = await getSession({ req })
 
   if (session) {
-    res.send({ content: 'This is protected content. You can access this content because you are signed in.' })
+    res.send({
+      content:
+        "This is protected content. You can access this content because you are signed in.",
+    })
   } else {
-    res.send({ error: 'You must be sign in to view the protected content on this page.' })
+    res.send({
+      error: "You must be sign in to view the protected content on this page.",
+    })
   }
 }

app/pages/api/examples/session.js

@@ -1,5 +1,5 @@
 // This is an example of how to access a session from an API route
-import { getSession } from 'next-auth/client'
+import { getSession } from "next-auth/react"
 
 export default async (req, res) => {
   const session = await getSession({ req })

app/pages/credentials.js

@@ -1,15 +1,15 @@
 // eslint-disable-next-line no-use-before-define
-import * as React from 'react'
-import { signIn, signOut, useSession } from 'next-auth/client'
-import Layout from 'components/layout'
+import * as React from "react"
+import { signIn, signOut, useSession } from "next-auth/react"
+import Layout from "components/layout"
 
-export default function Page () {
+export default function Page() {
   const [response, setResponse] = React.useState(null)
   const handleLogin = (options) => async () => {
     if (options.redirect) {
-      return signIn('credentials', options)
+      return signIn("credentials", options)
     }
-    const response = await signIn('credentials', options)
+    const response = await signIn("credentials", options)
     setResponse(response)
   }
 
@@ -21,18 +21,22 @@ export default function Page () {
     setResponse(response)
   }
 
-  const [session] = useSession()
+  const { data: session } = useSession()
 
   if (session) {
     return (
       <Layout>
         <h1>Test different flows for Credentials logout</h1>
-        <span className='spacing'>Default:</span>
-        <button onClick={handleLogout({ redirect: true })}>Logout</button><br />
-        <span className='spacing'>No redirect:</span>
-        <button onClick={handleLogout({ redirect: false })}>Logout</button><br />
+        <span className="spacing">Default:</span>
+        <button onClick={handleLogout({ redirect: true })}>Logout</button>
+        <br />
+        <span className="spacing">No redirect:</span>
+        <button onClick={handleLogout({ redirect: false })}>Logout</button>
+        <br />
         <p>Response:</p>
-        <pre style={{ background: '#eee', padding: 16 }}>{JSON.stringify(response, null, 2)}</pre>
+        <pre style={{ background: "#eee", padding: 16 }}>
+          {JSON.stringify(response, null, 2)}
+        </pre>
       </Layout>
     )
   }
@@ -40,14 +44,24 @@ export default function Page () {
   return (
     <Layout>
       <h1>Test different flows for Credentials login</h1>
-      <span className='spacing'>Default:</span>
-      <button onClick={handleLogin({ redirect: true, password: 'password' })}>Login</button><br />
-      <span className='spacing'>No redirect:</span>
-      <button onClick={handleLogin({ redirect: false, password: 'password' })}>Login</button><br />
-      <span className='spacing'>No redirect, wrong password:</span>
-      <button onClick={handleLogin({ redirect: false, password: '' })}>Login</button>
+      <span className="spacing">Default:</span>
+      <button onClick={handleLogin({ redirect: true, password: "password" })}>
+        Login
+      </button>
+      <br />
+      <span className="spacing">No redirect:</span>
+      <button onClick={handleLogin({ redirect: false, password: "password" })}>
+        Login
+      </button>
+      <br />
+      <span className="spacing">No redirect, wrong password:</span>
+      <button onClick={handleLogin({ redirect: false, password: "" })}>
+        Login
+      </button>
       <p>Response:</p>
-      <pre style={{ background: '#eee', padding: 16 }}>{JSON.stringify(response, null, 2)}</pre>
+      <pre style={{ background: "#eee", padding: 16 }}>
+        {JSON.stringify(response, null, 2)}
+      </pre>
     </Layout>
   )
 }

app/pages/email.js

@@ -1,11 +1,11 @@
 // eslint-disable-next-line no-use-before-define
-import * as React from 'react'
-import { signIn, signOut, useSession } from 'next-auth/client'
-import Layout from 'components/layout'
+import * as React from "react"
+import { signIn, signOut, useSession } from "next-auth/react"
+import Layout from "components/layout"
 
-export default function Page () {
+export default function Page() {
   const [response, setResponse] = React.useState(null)
-  const [email, setEmail] = React.useState('')
+  const [email, setEmail] = React.useState("")
 
   const handleChange = (event) => {
     setEmail(event.target.value)
@@ -15,9 +15,9 @@ export default function Page () {
     event.preventDefault()
 
     if (options.redirect) {
-      return signIn('email', options)
+      return signIn("email", options)
     }
-    const response = await signIn('email', options)
+    const response = await signIn("email", options)
     setResponse(response)
   }
 
@@ -29,18 +29,22 @@ export default function Page () {
     setResponse(response)
   }
 
-  const [session] = useSession()
+  const { data: session } = useSession()
 
   if (session) {
     return (
       <Layout>
         <h1>Test different flows for Email logout</h1>
-        <span className='spacing'>Default:</span>
-        <button onClick={handleLogout({ redirect: true })}>Logout</button><br />
-        <span className='spacing'>No redirect:</span>
-        <button onClick={handleLogout({ redirect: false })}>Logout</button><br />
+        <span className="spacing">Default:</span>
+        <button onClick={handleLogout({ redirect: true })}>Logout</button>
+        <br />
+        <span className="spacing">No redirect:</span>
+        <button onClick={handleLogout({ redirect: false })}>Logout</button>
+        <br />
         <p>Response:</p>
-        <pre style={{ background: '#eee', padding: 16 }}>{JSON.stringify(response, null, 2)}</pre>
+        <pre style={{ background: "#eee", padding: 16 }}>
+          {JSON.stringify(response, null, 2)}
+        </pre>
       </Layout>
     )
   }
@@ -48,20 +52,29 @@ export default function Page () {
   return (
     <Layout>
       <h1>Test different flows for Email login</h1>
-      <label className='spacing'>
-        Email address:{' '}
-        <input type='text' id='email' name='email' value={email} onChange={handleChange} />
-      </label><br />
+      <label className="spacing">
+        Email address:{" "}
+        <input
+          type="text"
+          id="email"
+          name="email"
+          value={email}
+          onChange={handleChange}
+        />
+      </label>
+      <br />
       <form onSubmit={handleLogin({ redirect: true, email })}>
-        <span className='spacing'>Default:</span>
-        <button type='submit'>Sign in with Email</button>
+        <span className="spacing">Default:</span>
+        <button type="submit">Sign in with Email</button>
       </form>
       <form onSubmit={handleLogin({ redirect: false, email })}>
-        <span className='spacing'>No redirect:</span>
-        <button type='submit'>Sign in with Email</button>
+        <span className="spacing">No redirect:</span>
+        <button type="submit">Sign in with Email</button>
       </form>
       <p>Response:</p>
-      <pre style={{ background: '#eee', padding: 16 }}>{JSON.stringify(response, null, 2)}</pre>
+      <pre style={{ background: "#eee", padding: 16 }}>
+        {JSON.stringify(response, null, 2)}
+      </pre>
     </Layout>
   )
 }

app/pages/protected-ssr.js

@@ -1,37 +1,48 @@
 // This is an example of how to protect content using server rendering
-import { getSession } from 'next-auth/client'
-import Layout from '../components/layout'
-import AccessDenied from '../components/access-denied'
+import { getServerSession } from "next-auth/next"
+import { authOptions } from "./api/auth/[...nextauth]"
+import Layout from "../components/layout"
+import AccessDenied from "../components/access-denied"
 
-export default function Page ({ content, session }) {
+export default function Page({ content, session }) {
   // If no session exists, display access denied message
-  if (!session) { return <Layout><AccessDenied /></Layout> }
+  if (!session) {
+    return (
+      <Layout>
+        <AccessDenied />
+      </Layout>
+    )
+  }
 
   // If session exists, display content
   return (
     <Layout>
       <h1>Protected Page</h1>
-      <p><strong>{content}</strong></p>
+      <p>
+        <strong>{content}</strong>
+      </p>
     </Layout>
   )
 }
 
-export async function getServerSideProps (context) {
-  const session = await getSession(context)
+export async function getServerSideProps(context) {
+  const session = await getServerSession(context, authOptions)
   let content = null
 
   if (session) {
-    const hostname = process.env.NEXTAUTH_URL || 'http://localhost:3000'
+    const hostname = process.env.NEXTAUTH_URL || "http://localhost:3000"
     const options = { headers: { cookie: context.req.headers.cookie } }
     const res = await fetch(`${hostname}/api/examples/protected`, options)
     const json = await res.json()
-    if (json.content) { content = json.content }
+    if (json.content) {
+      content = json.content
+    }
   }
 
   return {
     props: {
       session,
-      content
-    }
+      content,
+    },
   }
 }

app/pages/protected.js

@@ -1,33 +1,35 @@
-import { useState, useEffect } from 'react'
-import { useSession } from 'next-auth/client'
-import Layout from '../components/layout'
-import AccessDenied from '../components/access-denied'
+import { useState, useEffect } from "react"
+import { useSession } from "next-auth/react"
+import Layout from "../components/layout"
 
-export default function Page () {
-  const [session, loading] = useSession()
+export default function Page() {
+  const { status } = useSession({
+    required: true,
+  })
   const [content, setContent] = useState()
 
   // Fetch content from protected route
   useEffect(() => {
+    if (status === "loading") return
     const fetchData = async () => {
-      const res = await fetch('/api/examples/protected')
+      const res = await fetch("/api/examples/protected")
       const json = await res.json()
-      if (json.content) { setContent(json.content) }
+      if (json.content) {
+        setContent(json.content)
+      }
     }
     fetchData()
-  }, [session])
+  }, [status])
 
-  // When rendering client side don't display anything until loading is complete
-  if (typeof window !== 'undefined' && loading) return null
-
-  // If no session exists, display access denied message
-  if (!session) { return <Layout><AccessDenied /></Layout> }
+  if (status === "loading") return <Layout>Loading...</Layout>
 
   // If session exists, display content
   return (
     <Layout>
       <h1>Protected Page</h1>
-      <p><strong>{content}</strong></p>
+      <p>
+        <strong>{content}</strong>
+      </p>
     </Layout>
   )
 }

app/pages/server.js

@@ -1,7 +1,7 @@
-import { getSession } from 'next-auth/client'
-import Layout from '../components/layout'
+import { getSession } from "next-auth/react"
+import Layout from "../components/layout"
 
-export default function Page () {
+export default function Page() {
   // As this page uses Server Side Rendering, the `session` will be already
   // populated on render without needing to go through a loading stage.
   // This is possible because of the shared context configured in `_app.js` that
@@ -11,27 +11,31 @@ export default function Page () {
     <Layout>
       <h1>Server Side Rendering</h1>
       <p>
-        This page uses the universal <strong>getSession()</strong> method in <strong>getServerSideProps()</strong>.
+        This page uses the universal <strong>getSession()</strong> method in{" "}
+        <strong>getServerSideProps()</strong>.
       </p>
       <p>
-        Using <strong>getSession()</strong> in <strong>getServerSideProps()</strong> is the recommended approach if you need to
-        support Server Side Rendering with authentication.
+        Using <strong>getSession()</strong> in{" "}
+        <strong>getServerSideProps()</strong> is the recommended approach if you
+        need to support Server Side Rendering with authentication.
       </p>
       <p>
-        The advantage of Server Side Rendering is this page does not require client side JavaScript.
+        The advantage of Server Side Rendering is this page does not require
+        client side JavaScript.
       </p>
       <p>
-        The disadvantage of Server Side Rendering is that this page is slower to render.
+        The disadvantage of Server Side Rendering is that this page is slower to
+        render.
       </p>
     </Layout>
   )
 }
 
 // Export the `session` prop to use sessions with Server Side Rendering
-export async function getServerSideProps (context) {
+export async function getServerSideProps(context) {
   return {
     props: {
-      session: await getSession(context)
-    }
+      session: await getSession(context),
+    },
   }
 }

app/pages/styles.css

@@ -4,7 +4,7 @@ body {
   max-width: 680px;
   margin: 0 auto;
   background: #fff;
-  color: #333;
+  color: var(--color-text);
 }
 
 li,

app/prisma/schema.prisma

@@ -1,63 +1,57 @@
+datasource db {
+  provider = "sqlite"
+  url      = "file:./dev.db"
+}
+
 generator client {
   provider = "prisma-client-js"
 }
 
-datasource db {
-  provider = "postgresql"
-  url      = env("DATABASE_URL")
-}
-
 model Account {
-  id                 Int       @default(autoincrement()) @id
-  compoundId         String    @unique @map(name: "compound_id")
-  userId             Int       @map(name: "user_id")
-  providerType       String    @map(name: "provider_type")
-  providerId         String    @map(name: "provider_id")
-  providerAccountId  String    @map(name: "provider_account_id")
-  refreshToken       String?   @map(name: "refresh_token")
-  accessToken        String?   @map(name: "access_token")
-  accessTokenExpires DateTime? @map(name: "access_token_expires")
-  createdAt          DateTime  @default(now()) @map(name: "created_at")
-  updatedAt          DateTime  @default(now()) @map(name: "updated_at")
+  id                 String  @id @default(cuid())
+  userId             String
+  type               String
+  provider           String
+  providerAccountId  String
+  refresh_token      String?
+  access_token       String?
+  expires_at         Int?
+  token_type         String?
+  scope              String?
+  id_token           String?
+  session_state      String?
+  oauth_token_secret String?
+  oauth_token        String?
 
-  @@index([providerAccountId], name: "providerAccountId")
-  @@index([providerId], name: "providerId")
-  @@index([userId], name: "userId")
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+  user      User     @relation(fields: [userId], references: [id])
 
-  @@map(name: "accounts")
+  @@unique([provider, providerAccountId])
 }
 
 model Session {
-  id           Int      @default(autoincrement()) @id
-  userId       Int      @map(name: "user_id")
+  id           String   @id @default(cuid())
+  sessionToken String   @unique
+  userId       String
   expires      DateTime
-  sessionToken String   @unique @map(name: "session_token")
-  accessToken  String   @unique @map(name: "access_token")
-  createdAt    DateTime @default(now()) @map(name: "created_at")
-  updatedAt    DateTime @default(now()) @map(name: "updated_at")
-
-  @@map(name: "sessions")
+  user         User     @relation(fields: [userId], references: [id])
 }
 
 model User {
-  id            Int       @default(autoincrement()) @id
+  id            String    @id @default(cuid())
   name          String?
   email         String?   @unique
-  emailVerified DateTime? @map(name: "email_verified")
+  emailVerified DateTime?
   image         String?
-  createdAt     DateTime  @default(now()) @map(name: "created_at")
-  updatedAt     DateTime  @default(now()) @map(name: "updated_at")
-
-  @@map(name: "users")
+  accounts      Account[]
+  sessions      Session[]
 }
 
-model VerificationRequest {
-  id         Int      @default(autoincrement()) @id
+model VerificationToken {
   identifier String
   token      String   @unique
   expires    DateTime
-  createdAt  DateTime  @default(now()) @map(name: "created_at")
-  updatedAt  DateTime  @default(now()) @map(name: "updated_at")
 
-  @@map(name: "verification_requests")
-}
+  @@unique([identifier, token])
+}

app/tsconfig.json

@@ -0,0 +1,34 @@
+{
+  "compilerOptions": {
+    "target": "esnext",
+    "lib": [
+      "dom",
+      "dom.iterable",
+      "esnext"
+    ],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": false,
+    "forceConsistentCasingInFileNames": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "preserve",
+    "baseUrl": ".",
+    "paths": {
+      "next-auth": [ "../src" ],
+      "next-auth/*": [ "../src/*" ]
+    }
+  },
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx"
+  ],
+  "exclude": [
+    "node_modules"
+  ]
+}

config/babel.config.js

@@ -0,0 +1,61 @@
+// We aim to have the same support as Next.js
+// https://nextjs.org/docs/getting-started#system-requirements
+// https://nextjs.org/docs/basic-features/supported-browsers-features
+
+module.exports = (api) => {
+  const isTest = api.env("test")
+  if (isTest) {
+    return {
+      presets: [
+        "@babel/preset-env",
+        ["@babel/preset-react", { runtime: "automatic" }],
+        ["@babel/preset-typescript", { isTSX: true, allExtensions: true }],
+      ],
+    }
+  }
+  return {
+    presets: [
+      ["@babel/preset-env", { targets: { node: 12 } }],
+      "@babel/preset-typescript",
+    ],
+    plugins: [
+      "@babel/plugin-proposal-optional-catch-binding",
+      "@babel/plugin-transform-runtime",
+    ],
+    ignore: [
+      "../src/**/__tests__/**",
+      "../src/adapters.ts",
+      "../src/lib/types.ts",
+      "../src/providers/oauth-types.ts",
+    ],
+    comments: false,
+    overrides: [
+      {
+        test: [
+          "../src/react/index.tsx",
+          "../src/lib/logger.ts",
+          "../src/core/errors.ts",
+          "../src/client/**",
+        ],
+        presets: [
+          ["@babel/preset-env", { targets: { ie: 11 } }],
+          ["@babel/preset-react", { runtime: "automatic" }],
+        ],
+      },
+      {
+        test: ["../src/core/pages/*.tsx"],
+        presets: ["preact"],
+        plugins: [
+          [
+            "jsx-pragmatic",
+            {
+              module: "preact",
+              export: "h",
+              import: "h",
+            },
+          ],
+        ],
+      },
+    ],
+  }
+}

config/babel.config.json

@@ -1,12 +0,0 @@
-{
-  "presets": [
-    ["@babel/preset-env", { "targets": { "esmodules": true } }]
-  ],
-  "comments": false,
-  "overrides": [
-    {
-      "test": ["../src/server/pages/**"],
-      "presets": ["preact"]
-    }
-  ]
-}

config/build.js

@@ -1,88 +0,0 @@
-const fs = require("fs-extra")
-const path = require("path")
-
-const MODULE_ENTRIES = {
-  SERVER: "index",
-  CLIENT: "client",
-  PROVIDERS: "providers",
-  ADAPTERS: "adapters",
-  JWT: "jwt",
-}
-
-// Building submodule entries
-
-const BUILD_TARGETS = {
-  [`${MODULE_ENTRIES.SERVER}.js`]: "module.exports = require('./dist/server').default\n",
-  [`${MODULE_ENTRIES.CLIENT}.js`]: "module.exports = require('./dist/client').default\n",
-  [`${MODULE_ENTRIES.ADAPTERS}.js`]: "module.exports = require('./dist/adapters').default\n",
-  [`${MODULE_ENTRIES.PROVIDERS}.js`]: "module.exports = require('./dist/providers').default\n",
-  [`${MODULE_ENTRIES.JWT}.js`]: "module.exports = require('./dist/lib/jwt').default\n",
-}
-
-Object.entries(BUILD_TARGETS).forEach(([target, content]) => {
-  fs.writeFile(path.join(process.cwd(), target), content, (err) => {
-    if (err) throw err
-    console.log(`[build] created "${target}" in root folder`)
-  })
-})
-
-// Building types
-
-const TYPES_TARGETS = [
-  `${MODULE_ENTRIES.SERVER}.d.ts`,
-  `${MODULE_ENTRIES.CLIENT}.d.ts`,
-  `${MODULE_ENTRIES.ADAPTERS}.d.ts`,
-  `${MODULE_ENTRIES.PROVIDERS}.d.ts`,
-  `${MODULE_ENTRIES.JWT}.d.ts`,
-  "internals",
-]
-
-TYPES_TARGETS.forEach((target) => {
-  fs.copy(
-    path.resolve("types", target),
-    path.join(process.cwd(), target),
-    (err) => {
-      if (err) throw err
-      console.log(`[build-types] copying "${target}" to root folder`)
-    }
-  )
-})
-
-// Building providers
-
-const providersDir = path.join(process.cwd(), "/src/providers")
-
-const files = fs
-  .readdirSync(providersDir, "utf8")
-  .filter((file) => file !== "index.js")
-
-let importLines = ""
-let exportLines = `export default {\n`
-files.forEach((file) => {
-  const provider = fs.readFileSync(path.join(providersDir, file), "utf8")
-  try {
-    // NOTE: If this fails, the default export probably wasn't a named function.
-    // Always use a named function as default export.
-    // Eg.: export default function YourProvider ...
-    const { functionName } = provider.match(
-      /export default function (?<functionName>.+)\s?\(/
-    ).groups
-
-    importLines += `import ${functionName} from "./${file}"\n`
-    exportLines += `  ${functionName},\n`
-  } catch (error) {
-    console.error(
-      [
-        `\nThe provider file '${file}' should have a single named default export`,
-        "Example: 'export default function YourProvider'\n\n",
-      ].join("\n")
-    )
-    process.exit(1)
-  }
-})
-exportLines += `}\n`
-
-fs.writeFile(
-  path.join(process.cwd(), "src/providers/index.js"),
-  [importLines, exportLines].join("\n")
-)

config/generate-providers.js

@@ -0,0 +1,18 @@
+const path = require("path")
+const fs = require("fs")
+
+const providersPath = path.join(process.cwd(), "/src/providers")
+
+const files = fs.readdirSync(providersPath, "utf8")
+
+const providers = files.map((file) => {
+  const strippedProviderName = file.substring(0, file.indexOf("."))
+  return `"${strippedProviderName}"`
+})
+
+const result = `
+// THIS FILE IS AUTOGENERATED. DO NOT EDIT.
+export type OAuthProviderType = 
+  | ${providers.join("\n  | ")}`
+
+fs.writeFileSync(path.join(providersPath, "oauth-types.ts"), result)

config/jest-setup.js

@@ -0,0 +1,3 @@
+import "regenerator-runtime/runtime"
+import "@testing-library/jest-dom"
+import "whatwg-fetch"

config/jest.config.js

@@ -0,0 +1,19 @@
+/** @type {import('@jest/types').Config.InitialOptions} */
+module.exports = {
+  transform: {
+    "\\.(js|jsx|ts|tsx)$": [
+      "babel-jest",
+      { configFile: "./config/babel.config.js" },
+    ],
+  },
+  rootDir: "../src",
+  setupFilesAfterEnv: ["../config/jest-setup.js"],
+  collectCoverageFrom: ["!client/__tests__/**"],
+  testMatch: ["**/*.test.js"],
+  coverageDirectory: "../coverage",
+  testEnvironment: "jsdom",
+  watchPlugins: [
+    "jest-watch-typeahead/filename",
+    "jest-watch-typeahead/testname",
+  ],
+}

config/version-pr.js

@@ -0,0 +1,17 @@
+const fs = require("fs-extra")
+const path = require("path")
+
+try {
+  const packageJSONPath = path.join(process.cwd(), "package.json")
+  const packageJSON = JSON.parse(fs.readFileSync(packageJSONPath, "utf8"))
+
+  const sha8 = process.env.GITHUB_SHA.substr(0, 8)
+  const prNumber = process.env.PR_NUMBER
+
+  packageJSON.version = `0.0.0-pr.${prNumber}.${sha8}`
+
+  fs.writeFileSync(packageJSONPath, JSON.stringify(packageJSON))
+} catch (error) {
+  console.error("Could not set PR version", error)
+  process.exit(1)
+}

config/version-pr/action.yml

@@ -0,0 +1,8 @@
+name: "Determine version"
+description: "Determines npm package version based on PR number and commit SHA"
+outputs:
+  version:
+    description: "npm package version"
+runs:
+  using: "node12"
+  main: "index.js"

config/version-pr/index.js

@@ -0,0 +1,18 @@
+const fs = require("fs-extra")
+const path = require("path")
+const core = require("@actions/core")
+
+try {
+  const packageJSONPath = path.join(process.cwd(), "package.json")
+  const packageJSON = JSON.parse(fs.readFileSync(packageJSONPath, "utf8"))
+
+  const sha8 = process.env.GITHUB_SHA.substr(0, 8)
+  const prNumber = process.env.PR_NUMBER
+
+  const packageVersion = `0.0.0-pr.${prNumber}.${sha8}`
+  packageJSON.version = packageVersion
+  core.setOutput("version", packageVersion)
+  fs.writeFileSync(packageJSONPath, JSON.stringify(packageJSON))
+} catch (error) {
+  core.setFailed(error.message)
+}

config/wrap-css.js

@@ -5,14 +5,13 @@
 // To work around this issue, this script is a manual step that wraps CSS in a
 // JavaScript file that has the compiled CSS embedded in it, and exports only
 // a function that returns the CSS as a string.
-const fs = require('fs')
-const path = require('path')
+const fs = require("fs")
+const path = require("path")
 
-const pathToCssJs = path.join(__dirname, '../dist/css/index.js')
-const pathToCss = path.join(__dirname, '../dist/css/index.css')
-
-const css = fs.readFileSync(pathToCss, 'utf8')
+const pathToCss = path.join(__dirname, "../css/index.css")
+const css = fs.readFileSync(pathToCss, "utf8")
 const cssWithEscapedQuotes = css.replace(/"/gm, '\\"')
-const js = `module.exports = function() { return "${cssWithEscapedQuotes}" }`
 
+const js = `module.exports = function() { return "${cssWithEscapedQuotes}" }`
+const pathToCssJs = path.join(__dirname, "../css/index.js")
 fs.writeFileSync(pathToCssJs, js)

package.json

@@ -5,126 +5,136 @@
   "homepage": "https://next-auth.js.org",
   "repository": "https://github.com/nextauthjs/next-auth.git",
   "author": "Iain Collins <me@iaincollins.com>",
+  "contributors": [
+    "Balázs Orbán <info@balazsorban.com>",
+    "Nico Domino <yo@ndo.dev>",
+    "Lluis Agusti <hi@llu.lu>"
+  ],
   "main": "index.js",
-  "types": "./index.d.ts",
-  "keywords": ["react", "nodejs", "oauth", "jwt", "oauth2", "authentication", "nextjs", "csrf", "oidc", "nextauth"],
+  "module": "index.js",
+  "types": "index.d.ts",
+  "keywords": [
+    "react",
+    "nodejs",
+    "oauth",
+    "jwt",
+    "oauth2",
+    "authentication",
+    "nextjs",
+    "csrf",
+    "oidc",
+    "nextauth"
+  ],
   "exports": {
-    ".": "./dist/server/index.js",
-    "./jwt": "./dist/lib/jwt.js",
-    "./adapters": "./dist/adapters/index.js",
-    "./client": "./dist/client/index.js",
-    "./providers": "./dist/providers/index.js",
-    "./providers/*": "./dist/providers/*.js"
+    ".": "./index.js",
+    "./jwt": "./jwt/index.js",
+    "./react": "./react/index.js",
+    "./core": "./core/index.js",
+    "./next": "./next/index.js",
+    "./client/_utils": "./client/_utils.js",
+    "./providers/*": "./providers/*.js"
   },
   "scripts": {
     "build": "npm run build:js && npm run build:css",
-    "build:js": "node ./config/build.js && babel --config-file ./config/babel.config.json src --out-dir dist",
-    "build:css": "postcss --config config/postcss.config.js src/**/*.css --base src --dir dist && node config/wrap-css.js",
-    "dev:setup": "npm run build:css && cd app && npm i",
+    "clean": "rm -rf client css lib providers core jwt react next index.d.ts index.js adapters.d.ts",
+    "build:js": "npm run clean && npm run generate-providers && tsc && babel --config-file ./config/babel.config.js src --out-dir . --extensions \".tsx,.ts,.js,.jsx\"",
+    "build:css": "postcss --config config/postcss.config.js src/**/*.css --base src --dir . && node config/wrap-css.js",
+    "dev:setup": "npm i && npm run generate-providers && npm run build:css && cd app && npm i",
     "dev": "cd app && npm run dev",
-    "watch": "npm run watch:js | npm run watch:css",
-    "watch:js": "babel --config-file ./config/babel.config.json --watch src --out-dir dist",
-    "watch:css": "postcss --config config/postcss.config.js --watch src/**/*.css --base src --dir dist",
-    "test:app:start": "docker-compose -f test/docker/app.yml up -d",
-    "test:app:rebuild": "npm run build && docker-compose -f test/docker/app.yml up -d --build",
-    "test:app:stop": "docker-compose -f test/docker/app.yml down",
-    "test": "npm run test:app:rebuild && npm run test:integration && npm run test:app:stop && npm run test:types",
-    "test:db": "npm run test:db:mysql && npm run test:db:postgres && npm run test:db:mongodb && npm run test:db:mssql",
-    "test:db:mysql": "node test/mysql.js",
-    "test:db:postgres": "node test/postgres.js",
-    "test:db:mongodb": "node test/mongodb.js",
-    "test:db:mssql": "node test/mssql.js",
-    "test:integration": "mocha test/integration",
-    "test:types": "dtslint types",
-    "db:start": "docker-compose -f test/docker/databases.yml up -d",
-    "db:stop": "docker-compose -f test/docker/databases.yml down",
+    "watch:css": "postcss --config config/postcss.config.js --watch src/**/*.css --base src --dir .",
+    "test": "jest --config ./config/jest.config.js",
+    "test:ci": "npm run lint && npm run test -- --ci",
     "prepublishOnly": "npm run build",
-    "publish:beta": "npm publish --tag beta",
-    "publish:canary": "npm publish --tag canary",
     "lint": "eslint .",
-    "lint:fix": "eslint . --fix"
+    "lint:fix": "eslint . --fix",
+    "version:pr": "node ./config/version-pr",
+    "generate-providers": "node ./config/generate-providers.js"
   },
   "files": [
-    "dist",
-    "index.js",
+    "lib",
+    "css",
+    "jwt",
+    "react",
+    "next",
+    "client",
+    "providers",
+    "core",
     "index.d.ts",
-    "providers.js",
-    "providers.d.ts",
-    "adapters.js",
-    "adapters.d.ts",
-    "client.js",
-    "client.d.ts",
-    "jwt.js",
-    "jwt.d.ts",
-    "internals"
+    "index.js",
+    "adapters.d.ts"
   ],
   "license": "ISC",
   "dependencies": {
-    "crypto-js": "^4.0.0",
-    "futoin-hkdf": "^1.3.2",
-    "jose": "^1.27.2",
-    "jsonwebtoken": "^8.5.1",
-    "nodemailer": "^6.4.16",
+    "@babel/runtime": "^7.15.4",
+    "@panva/hkdf": "^1.0.0",
+    "cookie": "^0.4.1",
+    "jose": "^4.1.2",
     "oauth": "^0.9.15",
-    "pkce-challenge": "^2.1.0",
-    "preact": "^10.4.1",
-    "preact-render-to-string": "^5.1.14",
-    "querystring": "^0.2.0",
-    "require_optional": "^1.0.1",
-    "typeorm": "^0.2.30"
+    "openid-client": "^5.0.2",
+    "preact": "^10.5.14",
+    "preact-render-to-string": "^5.1.19",
+    "uuid": "^8.3.2"
   },
   "peerDependencies": {
-    "react": "^16.13.1 || ^17",
-    "react-dom": "16.13.1 || ^17"
+    "nodemailer": "^6.6.5",
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2"
   },
-  "peerOptionalDependencies": {
-    "mongodb": "^3.5.9",
-    "mysql": "^2.18.1",
-    "mssql": "^6.2.1",
-    "pg": "^8.2.1",
-    "@prisma/client": "^2.16.1"
+  "peerDependenciesMeta": {
+    "nodemailer": {
+      "optional": true
+    }
   },
   "devDependencies": {
-    "@babel/cli": "^7.8.4",
-    "@babel/core": "^7.9.6",
-    "@babel/preset-env": "^7.9.6",
-    "@prisma/client": "^2.16.1",
-    "@semantic-release/commit-analyzer": "^8.0.1",
-    "@semantic-release/github": "^7.2.0",
-    "@semantic-release/npm": "7.0.8",
-    "@semantic-release/release-notes-generator": "^9.0.1",
-    "@types/react": "^17.0.0",
-    "@typescript-eslint/eslint-plugin": "^4.22.0",
-    "@typescript-eslint/parser": "^4.22.0",
-    "autoprefixer": "^9.7.6",
+    "@actions/core": "^1.6.0",
+    "@babel/cli": "^7.15.7",
+    "@babel/core": "^7.15.5",
+    "@babel/plugin-proposal-optional-catch-binding": "^7.14.5",
+    "@babel/plugin-transform-runtime": "^7.15.0",
+    "@babel/preset-env": "^7.15.6",
+    "@babel/preset-react": "^7.14.5",
+    "@babel/preset-typescript": "^7.15.0",
+    "@testing-library/jest-dom": "^5.14.1",
+    "@testing-library/react": "^12.1.2",
+    "@testing-library/react-hooks": "^7.0.2",
+    "@testing-library/user-event": "^13.2.1",
+    "@types/node": "^16.11.6",
+    "@types/nodemailer": "^6.4.4",
+    "@types/oauth": "^0.9.1",
+    "@types/react": "^17.0.27",
+    "@types/react-dom": "^17.0.9",
+    "@typescript-eslint/eslint-plugin": "^4.33.0",
+    "@typescript-eslint/parser": "^4.33.0",
+    "autoprefixer": "^10.3.7",
+    "babel-jest": "^27.3.0",
+    "babel-plugin-jsx-pragmatic": "^1.0.2",
     "babel-preset-preact": "^2.0.0",
-    "conventional-changelog-conventionalcommits": "4.4.0",
-    "cssnano": "^4.1.10",
-    "dotenv": "^8.2.0",
-    "dtslint": "^4.0.8",
-    "eslint": "^7.19.0",
-    "eslint-config-prettier": "^8.2.0",
-    "eslint-config-standard-with-typescript": "^19.0.1",
-    "eslint-plugin-import": "^2.22.1",
+    "conventional-changelog-conventionalcommits": "4.6.1",
+    "cssnano": "^5.0.8",
+    "eslint": "^7.32.0",
+    "eslint-config-prettier": "^8.3.0",
+    "eslint-config-standard-with-typescript": "^21.0.1",
+    "eslint-plugin-import": "^2.24.2",
+    "eslint-plugin-jest": "^25.2.2",
     "eslint-plugin-node": "^11.1.0",
-    "eslint-plugin-promise": "^4.3.1",
-    "eslint-plugin-standard": "^5.0.0",
-    "mocha": "^8.1.3",
-    "mongodb": "^3.5.9",
-    "mssql": "^6.2.1",
-    "mysql": "^2.18.1",
-    "next": "^10.0.5",
-    "pg": "^8.2.1",
-    "postcss-cli": "^7.1.1",
-    "postcss-nested": "^4.2.1",
-    "prettier": "^2.2.1",
-    "prisma": "^2.16.1",
-    "puppeteer": "^5.2.1",
-    "puppeteer-extra": "^3.1.15",
-    "puppeteer-extra-plugin-stealth": "^2.6.1",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1",
-    "typescript": "^4.1.3"
+    "eslint-plugin-promise": "^5.1.0",
+    "fs-extra": "^10.0.0",
+    "husky": "^7.0.2",
+    "jest": "^27.3.0",
+    "jest-watch-typeahead": "^1.0.0",
+    "msw": "^0.35.0",
+    "next": "v11.1.3-canary.0",
+    "postcss-cli": "^9.0.1",
+    "postcss-nested": "^5.0.6",
+    "prettier": "^2.4.1",
+    "pretty-quick": "^3.1.1",
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2",
+    "typescript": "^4.4.3",
+    "whatwg-fetch": "^3.6.2"
+  },
+  "engines": {
+    "node": "^12.19.0 || ^14.15.0 || ^16.13.0"
   },
   "prettier": {
     "semi": false
@@ -134,37 +144,73 @@
     "parserOptions": {
       "project": "./tsconfig.json"
     },
-    "extends": [
-      "standard-with-typescript",
-      "prettier"
-    ],
+    "extends": ["standard-with-typescript", "prettier"],
     "ignorePatterns": [
       "node_modules",
-      "test",
       "next-env.d.ts",
       "types",
-      "www",
       ".next",
-      "dist"
+      "dist",
+      "/core",
+      "/react.js"
     ],
     "globals": {
       "localStorage": "readonly",
       "location": "readonly",
       "fetch": "readonly"
-    }
+    },
+    "rules": {
+      "camelcase": "off",
+      "@typescript-eslint/naming-convention": "off",
+      "@typescript-eslint/strict-boolean-expressions": "off",
+      "@typescript-eslint/explicit-function-return-type": "off",
+      "@typescript-eslint/restrict-template-expressions": "off"
+    },
+    "overrides": [
+      {
+        "files": ["./**/*test.js"],
+        "env": {
+          "jest/globals": true
+        },
+        "extends": ["plugin:jest/recommended"],
+        "plugins": ["jest"]
+      }
+    ]
   },
   "release": {
     "branches": [
       "+([0-9])?(.{+([0-9]),x}).x",
       "main",
-      { "name": "beta", "prerelease": true },
-      { "name": "next", "prerelease": true }
+      {
+        "name": "beta",
+        "prerelease": true
+      },
+      {
+        "name": "next",
+        "prerelease": true
+      }
+    ],
+    "plugins": [
+      "@semantic-release/commit-analyzer",
+      "@semantic-release/release-notes-generator",
+      "@semantic-release/npm",
+      [
+        "@semantic-release/github",
+        {
+          "releasedLabels": false,
+          "successComment": false
+        }
+      ]
     ]
   },
   "funding": [
     {
       "type": "github",
       "url": "https://github.com/sponsors/balazsorban44"
+    },
+    {
+      "type": "opencollective",
+      "url": "https://opencollective.com/nextauth"
     }
   ]
 }

src/adapters.ts

@@ -0,0 +1,109 @@
+import { Account, User, Awaitable } from "."
+
+export interface AdapterUser extends User {
+  id: string
+  emailVerified: Date | null
+}
+
+export interface AdapterSession {
+  id: string
+  /** A randomly generated value that is used to get hold of the session. */
+  sessionToken: string
+  /** Used to connect the session to a particular user */
+  userId: string
+  expires: Date
+}
+
+export interface VerificationToken {
+  identifier: string
+  expires: Date
+  token: string
+}
+
+/**
+ * Using a custom adapter you can connect to any database backend or even several different databases.
+ * Custom adapters created and maintained by our community can be found in the adapters repository.
+ * Feel free to add a custom adapter from your project to the repository,
+ * or even become a maintainer of a certain adapter.
+ * Custom adapters can still be created and used in a project without being added to the repository.
+ *
+ * **Required methods**
+ *
+ * _(These methods are required for all sign in flows)_
+ * - `createUser`
+ * - `getUser`
+ * - `getUserByEmail`
+ * - `getUserByAccount`
+ * - `linkAccount`
+ * - `createSession`
+ * - `getSessionAndUser`
+ * - `updateSession`
+ * - `deleteSession`
+ * - `updateUser`
+ *
+ * _(Required to support email / passwordless sign in)_
+ *
+ * - `createVerificationToken`
+ * - `useVerificationToken`
+ *
+ * **Unimplemented methods**
+ *
+ * _(These methods will be required in a future release, but are not yet invoked)_
+ * - `deleteUser`
+ * - `unlinkAccount`
+ *
+ * [Community adapters](https://github.com/nextauthjs/adapters) |
+ * [Create a custom adapter](https://next-auth.js.org/tutorials/creating-a-database-adapter)
+ */
+export interface Adapter {
+  createUser: (user: Omit<AdapterUser, "id">) => Awaitable<AdapterUser>
+  getUser: (id: string) => Awaitable<AdapterUser | null>
+  getUserByEmail: (email: string) => Awaitable<AdapterUser | null>
+  /** Using the provider id and the id of the user for a specific account, get the user. */
+  getUserByAccount: (
+    providerAccountId: Pick<Account, "provider" | "providerAccountId">
+  ) => Awaitable<AdapterUser | null>
+  updateUser: (user: Partial<AdapterUser>) => Awaitable<AdapterUser>
+  /** @todo Implement */
+  deleteUser?: (
+    userId: string
+  ) => Promise<void> | Awaitable<AdapterUser | null | undefined>
+  linkAccount: (
+    account: Account
+  ) => Promise<void> | Awaitable<Account | null | undefined>
+  /** @todo Implement */
+  unlinkAccount?: (
+    providerAccountId: Pick<Account, "provider" | "providerAccountId">
+  ) => Promise<void> | Awaitable<Account | undefined>
+  /** Creates a session for the user and returns it. */
+  createSession: (session: {
+    sessionToken: string
+    userId: string
+    expires: Date
+  }) => Awaitable<AdapterSession>
+  getSessionAndUser: (
+    sessionToken: string
+  ) => Awaitable<{ session: AdapterSession; user: AdapterUser } | null>
+  updateSession: (
+    session: Partial<AdapterSession> & Pick<AdapterSession, "sessionToken">
+  ) => Awaitable<AdapterSession | null | undefined>
+  /**
+   * Deletes a session from the database.
+   * It is preferred that this method also returns the session
+   * that is being deleted for logging purposes.
+   */
+  deleteSession: (
+    sessionToken: string
+  ) => Promise<void> | Awaitable<AdapterSession | null | undefined>
+  createVerificationToken?: (
+    verificationToken: VerificationToken
+  ) => Awaitable<VerificationToken | null | undefined>
+  /**
+   * Return verification token from the database
+   * and delete it so it cannot be used again.
+   */
+  useVerificationToken?: (params: {
+    identifier: string
+    token: string
+  }) => Awaitable<VerificationToken | null>
+}

src/adapters/example/index.js

@@ -1,110 +0,0 @@
-const Adapter = (config, options = {}) => {
-  async function getAdapter (appOptions) {
-    const { logger } = appOptions
-    // Display debug output if debug option enabled
-    function debug (debugCode, ...args) {
-      logger.debug(`ADAPTER_${debugCode}`, ...args)
-    }
-
-    async function createUser (profile) {
-      debug('createUser', profile)
-      return null
-    }
-
-    async function getUser (id) {
-      debug('getUser', id)
-      return null
-    }
-
-    async function getUserByEmail (email) {
-      debug('getUserByEmail', email)
-      return null
-    }
-
-    async function getUserByProviderAccountId (providerId, providerAccountId) {
-      debug('getUserByProviderAccountId', providerId, providerAccountId)
-      return null
-    }
-
-    async function updateUser (user) {
-      debug('updateUser', user)
-      return null
-    }
-
-    async function deleteUser (userId) {
-      debug('deleteUser', userId)
-      return null
-    }
-
-    async function linkAccount (userId, providerId, providerType, providerAccountId, refreshToken, accessToken, accessTokenExpires) {
-      debug('linkAccount', userId, providerId, providerType, providerAccountId, refreshToken, accessToken, accessTokenExpires)
-      return null
-    }
-
-    async function unlinkAccount (userId, providerId, providerAccountId) {
-      debug('unlinkAccount', userId, providerId, providerAccountId)
-      return null
-    }
-
-    async function createSession (user) {
-      debug('createSession', user)
-      return null
-    }
-
-    async function getSession (sessionToken) {
-      debug('getSession', sessionToken)
-      return null
-    }
-
-    async function updateSession (session, force) {
-      debug('updateSession', session)
-      return null
-    }
-
-    async function deleteSession (sessionToken) {
-      debug('deleteSession', sessionToken)
-      return null
-    }
-
-    async function createVerificationRequest (identifier, url, token, secret, provider) {
-      debug('createVerificationRequest', identifier)
-      return null
-    }
-
-    async function getVerificationRequest (identifier, token, secret, provider) {
-      debug('getVerificationRequest', identifier, token)
-      return null
-    }
-
-    async function deleteVerificationRequest (identifier, token, secret, provider) {
-      debug('deleteVerification', identifier, token)
-      return null
-    }
-
-    return Promise.resolve({
-      createUser,
-      getUser,
-      getUserByEmail,
-      getUserByProviderAccountId,
-      updateUser,
-      deleteUser,
-      linkAccount,
-      unlinkAccount,
-      createSession,
-      getSession,
-      updateSession,
-      deleteSession,
-      createVerificationRequest,
-      getVerificationRequest,
-      deleteVerificationRequest
-    })
-  }
-
-  return {
-    getAdapter
-  }
-}
-
-export default {
-  Adapter
-}

src/adapters/index.js

@@ -1,8 +0,0 @@
-import TypeORM from './typeorm'
-import Prisma from './prisma'
-
-export default {
-  Default: TypeORM.Adapter,
-  TypeORM,
-  Prisma
-}

src/adapters/prisma/index.js

@@ -1,340 +0,0 @@
-import { createHash, randomBytes } from 'crypto'
-
-import { CreateUserError } from '../../lib/errors'
-
-const Adapter = (config) => {
-  const {
-    prisma,
-    modelMapping = {
-      User: 'user',
-      Account: 'account',
-      Session: 'session',
-      VerificationRequest: 'verificationRequest'
-    }
-  } = config
-
-  const { User, Account, Session, VerificationRequest } = modelMapping
-
-  function getCompoundId (providerId, providerAccountId) {
-    return createHash('sha256').update(`${providerId}:${providerAccountId}`).digest('hex')
-  }
-
-  async function getAdapter (appOptions) {
-    const { logger } = appOptions
-    function debug (debugCode, ...args) {
-      logger.debug(`PRISMA_${debugCode}`, ...args)
-    }
-
-    if (appOptions && (!appOptions.session || !appOptions.session.maxAge)) {
-      debug('GET_ADAPTER', 'Session expiry not configured (defaulting to 30 days')
-    }
-
-    const defaultSessionMaxAge = 30 * 24 * 60 * 60 * 1000
-    const sessionMaxAge = (appOptions && appOptions.session && appOptions.session.maxAge)
-      ? appOptions.session.maxAge * 1000
-      : defaultSessionMaxAge
-    const sessionUpdateAge = (appOptions && appOptions.session && appOptions.session.updateAge)
-      ? appOptions.session.updateAge * 1000
-      : 0
-
-    async function createUser (profile) {
-      debug('CREATE_USER', profile)
-      try {
-        return prisma[User].create({
-          data: {
-            name: profile.name,
-            email: profile.email,
-            image: profile.image,
-            emailVerified: profile.emailVerified ? profile.emailVerified.toISOString() : null
-          }
-        })
-      } catch (error) {
-        logger.error('CREATE_USER_ERROR', error)
-        return Promise.reject(new CreateUserError(error))
-      }
-    }
-
-    async function getUser (id) {
-      debug('GET_USER', id)
-      try {
-        return prisma[User].findUnique({ where: { id } })
-      } catch (error) {
-        logger.error('GET_USER_BY_ID_ERROR', error)
-        return Promise.reject(new Error('GET_USER_BY_ID_ERROR', error))
-      }
-    }
-
-    async function getUserByEmail (email) {
-      debug('GET_USER_BY_EMAIL', email)
-      try {
-        if (!email) { return Promise.resolve(null) }
-        return prisma[User].findUnique({ where: { email } })
-      } catch (error) {
-        logger.error('GET_USER_BY_EMAIL_ERROR', error)
-        return Promise.reject(new Error('GET_USER_BY_EMAIL_ERROR', error))
-      }
-    }
-
-    async function getUserByProviderAccountId (providerId, providerAccountId) {
-      debug('GET_USER_BY_PROVIDER_ACCOUNT_ID', providerId, providerAccountId)
-      try {
-        const account = await prisma[Account].findUnique({ where: { compoundId: getCompoundId(providerId, providerAccountId) } })
-        if (!account) { return null }
-        return prisma[User].findUnique({ where: { id: account.userId } })
-      } catch (error) {
-        logger.error('GET_USER_BY_PROVIDER_ACCOUNT_ID_ERROR', error)
-        return Promise.reject(new Error('GET_USER_BY_PROVIDER_ACCOUNT_ID_ERROR', error))
-      }
-    }
-
-    async function updateUser (user) {
-      debug('UPDATE_USER', user)
-      try {
-        const { id, name, email, image, emailVerified } = user
-        return prisma[User].update({
-          where: { id },
-          data: {
-            name,
-            email,
-            image,
-            emailVerified: emailVerified ? emailVerified.toISOString() : null
-          }
-        })
-      } catch (error) {
-        logger.error('UPDATE_USER_ERROR', error)
-        return Promise.reject(new Error('UPDATE_USER_ERROR', error))
-      }
-    }
-
-    async function deleteUser (userId) {
-      debug('DELETE_USER', userId)
-      try {
-        return prisma[User].delete({ where: { id: userId } })
-      } catch (error) {
-        logger.error('DELETE_USER_ERROR', error)
-        return Promise.reject(new Error('DELETE_USER_ERROR', error))
-      }
-    }
-
-    async function linkAccount (userId, providerId, providerType, providerAccountId, refreshToken, accessToken, accessTokenExpires) {
-      debug('LINK_ACCOUNT', userId, providerId, providerType, providerAccountId, refreshToken, accessToken, accessTokenExpires)
-      try {
-        return prisma[Account].create({
-          data: {
-            accessToken,
-            refreshToken,
-            compoundId: getCompoundId(providerId, providerAccountId),
-            providerAccountId: `${providerAccountId}`,
-            providerId,
-            providerType,
-            accessTokenExpires,
-            userId
-          }
-        })
-      } catch (error) {
-        logger.error('LINK_ACCOUNT_ERROR', error)
-        return Promise.reject(new Error('LINK_ACCOUNT_ERROR', error))
-      }
-    }
-
-    async function unlinkAccount (userId, providerId, providerAccountId) {
-      debug('UNLINK_ACCOUNT', userId, providerId, providerAccountId)
-      try {
-        return prisma[Account].delete({ where: { compoundId: getCompoundId(providerId, providerAccountId) } })
-      } catch (error) {
-        logger.error('UNLINK_ACCOUNT_ERROR', error)
-        return Promise.reject(new Error('UNLINK_ACCOUNT_ERROR', error))
-      }
-    }
-
-    async function createSession (user) {
-      debug('CREATE_SESSION', user)
-      try {
-        let expires = null
-        if (sessionMaxAge) {
-          const dateExpires = new Date()
-          dateExpires.setTime(dateExpires.getTime() + sessionMaxAge)
-          expires = dateExpires.toISOString()
-        }
-
-        return prisma[Session].create({
-          data: {
-            expires,
-            userId: user.id,
-            sessionToken: randomBytes(32).toString('hex'),
-            accessToken: randomBytes(32).toString('hex')
-          }
-        })
-      } catch (error) {
-        logger.error('CREATE_SESSION_ERROR', error)
-        return Promise.reject(new Error('CREATE_SESSION_ERROR', error))
-      }
-    }
-
-    async function getSession (sessionToken) {
-      debug('GET_SESSION', sessionToken)
-      try {
-        const session = await prisma[Session].findUnique({ where: { sessionToken } })
-
-        // Check session has not expired (do not return it if it has)
-        if (session && session.expires && new Date() > session.expires) {
-          await prisma[Session].delete({ where: { sessionToken } })
-          return null
-        }
-
-        return session
-      } catch (error) {
-        logger.error('GET_SESSION_ERROR', error)
-        return Promise.reject(new Error('GET_SESSION_ERROR', error))
-      }
-    }
-
-    async function updateSession (session, force) {
-      debug('UPDATE_SESSION', session)
-      try {
-        if (sessionMaxAge && (sessionUpdateAge || sessionUpdateAge === 0) && session.expires) {
-          // Calculate last updated date, to throttle write updates to database
-          // Formula: ({expiry date} - sessionMaxAge) + sessionUpdateAge
-          //     e.g. ({expiry date} - 30 days) + 1 hour
-          //
-          // Default for sessionMaxAge is 30 days.
-          // Default for sessionUpdateAge is 1 hour.
-          const dateSessionIsDueToBeUpdated = new Date(session.expires)
-          dateSessionIsDueToBeUpdated.setTime(dateSessionIsDueToBeUpdated.getTime() - sessionMaxAge)
-          dateSessionIsDueToBeUpdated.setTime(dateSessionIsDueToBeUpdated.getTime() + sessionUpdateAge)
-
-          // Trigger update of session expiry date and write to database, only
-          // if the session was last updated more than {sessionUpdateAge} ago
-          if (new Date() > dateSessionIsDueToBeUpdated) {
-            const newExpiryDate = new Date()
-            newExpiryDate.setTime(newExpiryDate.getTime() + sessionMaxAge)
-            session.expires = newExpiryDate
-          } else if (!force) {
-            return null
-          }
-        } else {
-          // If session MaxAge, session UpdateAge or session.expires are
-          // missing then don't even try to save changes, unless force is set.
-          if (!force) { return null }
-        }
-
-        const { id, expires } = session
-        return prisma[Session].update({ where: { id }, data: { expires: expires.toISOString() } })
-      } catch (error) {
-        logger.error('UPDATE_SESSION_ERROR', error)
-        return Promise.reject(new Error('UPDATE_SESSION_ERROR', error))
-      }
-    }
-
-    async function deleteSession (sessionToken) {
-      debug('DELETE_SESSION', sessionToken)
-      try {
-        return prisma[Session].delete({ where: { sessionToken } })
-      } catch (error) {
-        logger.error('DELETE_SESSION_ERROR', error)
-        return Promise.reject(new Error('DELETE_SESSION_ERROR', error))
-      }
-    }
-
-    async function createVerificationRequest (identifier, url, token, secret, provider) {
-      debug('CREATE_VERIFICATION_REQUEST', identifier)
-      try {
-        const { baseUrl } = appOptions
-        const { sendVerificationRequest, maxAge } = provider
-
-        // Store hashed token (using secret as salt) so that tokens cannot be exploited
-        // even if the contents of the database is compromised.
-        // @TODO Use bcrypt function here instead of simple salted hash
-        const hashedToken = createHash('sha256').update(`${token}${secret}`).digest('hex')
-
-        let expires = null
-        if (maxAge) {
-          const dateExpires = new Date()
-          dateExpires.setTime(dateExpires.getTime() + (maxAge * 1000))
-          expires = dateExpires.toISOString()
-        }
-
-        // Save to database
-        const verificationRequest = await prisma[VerificationRequest].create({
-          data: {
-            identifier,
-            token: hashedToken,
-            expires
-          }
-        })
-
-        // With the verificationCallback on a provider, you can send an email, or queue
-        // an email to be sent, or perform some other action (e.g. send a text message)
-        await sendVerificationRequest({ identifier, url, token, baseUrl, provider })
-
-        return verificationRequest
-      } catch (error) {
-        logger.error('CREATE_VERIFICATION_REQUEST_ERROR', error)
-        return Promise.reject(new Error('CREATE_VERIFICATION_REQUEST_ERROR', error))
-      }
-    }
-
-    async function getVerificationRequest (identifier, token, secret, provider) {
-      debug('GET_VERIFICATION_REQUEST', identifier, token)
-      try {
-        // Hash token provided with secret before trying to match it with database
-        // @TODO Use bcrypt instead of salted SHA-256 hash for token
-        const hashedToken = createHash('sha256').update(`${token}${secret}`).digest('hex')
-        const verificationRequest = await prisma[VerificationRequest].findFirst({
-          where: {
-            identifier,
-            token: hashedToken
-          }
-        })
-        if (verificationRequest && verificationRequest.expires && new Date() > verificationRequest.expires) {
-          // Delete verification entry so it cannot be used again
-          await prisma[VerificationRequest].deleteMany({ where: { identifier, token: hashedToken } })
-          return null
-        }
-
-        return verificationRequest
-      } catch (error) {
-        logger.error('GET_VERIFICATION_REQUEST_ERROR', error)
-        return Promise.reject(new Error('GET_VERIFICATION_REQUEST_ERROR', error))
-      }
-    }
-
-    async function deleteVerificationRequest (identifier, token, secret, provider) {
-      debug('DELETE_VERIFICATION', identifier, token)
-      try {
-        // Delete verification entry so it cannot be used again
-        const hashedToken = createHash('sha256').update(`${token}${secret}`).digest('hex')
-        await prisma[VerificationRequest].deleteMany({ where: { identifier, token: hashedToken } })
-      } catch (error) {
-        logger.error('DELETE_VERIFICATION_REQUEST_ERROR', error)
-        return Promise.reject(new Error('DELETE_VERIFICATION_REQUEST_ERROR', error))
-      }
-    }
-
-    return Promise.resolve({
-      createUser,
-      getUser,
-      getUserByEmail,
-      getUserByProviderAccountId,
-      updateUser,
-      deleteUser,
-      linkAccount,
-      unlinkAccount,
-      createSession,
-      getSession,
-      updateSession,
-      deleteSession,
-      createVerificationRequest,
-      getVerificationRequest,
-      deleteVerificationRequest
-    })
-  }
-
-  return {
-    getAdapter
-  }
-}
-
-export default {
-  Adapter
-}

src/adapters/typeorm/index.js

@@ -1,384 +0,0 @@
-import { createConnection, getConnection } from 'typeorm'
-import { createHash } from 'crypto'
-import require_optional from 'require_optional' // eslint-disable-line camelcase
-
-import { CreateUserError } from '../../lib/errors'
-import adapterConfig from './lib/config'
-import adapterTransform from './lib/transform'
-import Models from './models'
-
-import { updateConnectionEntities } from './lib/utils'
-
-const Adapter = (typeOrmConfig, options = {}) => {
-  // Ensure typeOrmConfigObject is normalized to an object
-  const typeOrmConfigObject = (typeof typeOrmConfig === 'string')
-    ? adapterConfig.parseConnectionString(typeOrmConfig)
-    : typeOrmConfig
-
-  // Load any custom models passed as an option, default to built in models
-  const { models: customModels = {} } = options
-  const models = {
-    User: customModels.User ? customModels.User : Models.User,
-    Account: customModels.Account ? customModels.Account : Models.Account,
-    Session: customModels.Session ? customModels.Session : Models.Session,
-    VerificationRequest: customModels.VerificationRequest ? customModels.VerificationRequest : Models.VerificationRequest
-  }
-
-  // The models are designed for ANSI SQL databases first (as a baseline).
-  // For databases that use a different pragma, we transform the models at run
-  // time *unless* the models are user supplied (in which case we don't do
-  // anything to do them). This function updates arguments by reference.
-  adapterTransform(typeOrmConfigObject, models, options)
-
-  const config = adapterConfig.loadConfig(typeOrmConfigObject, { ...options, models })
-
-  // Create objects from models that can be consumed by functions in the adapter
-  const User = models.User.model
-  const Account = models.Account.model
-  const Session = models.Session.model
-  const VerificationRequest = models.VerificationRequest.model
-
-  let connection = null
-
-  async function getAdapter (appOptions) {
-    const { logger } = appOptions
-    // Display debug output if debug option enabled
-    function debug (debugCode, ...args) {
-      logger.debug(`TYPEORM_${debugCode}`, ...args)
-    }
-
-    // Helper function to reuse / restablish connections
-    // (useful if they drop when after being idle)
-    async function _connect () {
-      // Get current connection by name
-      connection = getConnection(config.name)
-
-      // If connection is no longer established, reconnect
-      if (!connection.isConnected) { connection = await connection.connect() }
-    }
-
-    if (!connection) {
-      // If no connection, create new connection
-      try {
-        connection = await createConnection(config)
-      } catch (error) {
-        if (error.name === 'AlreadyHasActiveConnectionError') {
-          // If creating connection fails because it's already
-          // been re-established, check it's really up
-          await _connect()
-        } else {
-          logger.error('ADAPTER_CONNECTION_ERROR', error)
-        }
-      }
-    } else {
-      // If the connection object already exists, ensure it's valid
-      await _connect()
-    }
-
-    if (process.env.NODE_ENV !== 'production') {
-      await updateConnectionEntities(connection, config.entities)
-    }
-
-    // Get manager from connection object
-    // https://github.com/typeorm/typeorm/blob/master/docs/entity-manager-api.md
-    const { manager } = connection
-
-    // The models are primarily designed for ANSI SQL database, but some
-    // flexiblity is required in the adapter to support non-SQL databases such
-    // as MongoDB which have different pragmas.
-    //
-    // TypeORM does some abstraction, but doesn't handle everything (e.g. it
-    // handles translating `id` and `_id` in models, but not queries) so we
-    // need to handle somethings in the adapter to make it compatible.
-    let idKey = 'id'
-    let ObjectId
-    if (config.type === 'mongodb') {
-      idKey = '_id'
-      // Using a dynamic import causes problems for some compilers/bundlers
-      // that don't handle dynamic imports. To try and work around this we are
-      // using the same method mongodb uses to load Object ID type, which is to
-      // use the require_optional loader.
-      const mongodb = require_optional('mongodb')
-      ObjectId = mongodb.ObjectId
-    }
-
-    // These values are stored as seconds, but to use them with dates in
-    // JavaScript we convert them to milliseconds.
-    //
-    // Use a conditional to default to 30 day session age if not set - it should
-    // always be set but a meaningful fallback is helpful to facilitate testing.
-    if (appOptions && (!appOptions.session || !appOptions.session.maxAge)) {
-      debug('GET_ADAPTER', 'Session expiry not configured (defaulting to 30 days')
-    }
-    const defaultSessionMaxAge = 30 * 24 * 60 * 60 * 1000
-    const sessionMaxAge = (appOptions && appOptions.session && appOptions.session.maxAge)
-      ? appOptions.session.maxAge * 1000
-      : defaultSessionMaxAge
-    const sessionUpdateAge = (appOptions && appOptions.session && appOptions.session.updateAge)
-      ? appOptions.session.updateAge * 1000
-      : 0
-
-    async function createUser (profile) {
-      debug('CREATE_USER', profile)
-      try {
-        // Create user account
-        const user = new User(profile.name, profile.email, profile.image, profile.emailVerified)
-        return await manager.save(user)
-      } catch (error) {
-        logger.error('CREATE_USER_ERROR', error)
-        return Promise.reject(new CreateUserError(error))
-      }
-    }
-
-    async function getUser (id) {
-      debug('GET_USER', id)
-
-      // In the very specific case of both using JWT for storing session data
-      // and using MongoDB to store user data, the ID is a string rather than
-      // an ObjectId and we need to turn it into an ObjectId.
-      //
-      // In all other scenarios it is already an ObjectId, because it will have
-      // come from another MongoDB query.
-      if (ObjectId && !(id instanceof ObjectId)) {
-        id = ObjectId(id)
-      }
-
-      try {
-        return manager.findOne(User, { [idKey]: id })
-      } catch (error) {
-        logger.error('GET_USER_BY_ID_ERROR', error)
-        return Promise.reject(new Error('GET_USER_BY_ID_ERROR', error))
-      }
-    }
-
-    async function getUserByEmail (email) {
-      debug('GET_USER_BY_EMAIL', email)
-      try {
-        if (!email) { return Promise.resolve(null) }
-        return manager.findOne(User, { email })
-      } catch (error) {
-        logger.error('GET_USER_BY_EMAIL_ERROR', error)
-        return Promise.reject(new Error('GET_USER_BY_EMAIL_ERROR', error))
-      }
-    }
-
-    async function getUserByProviderAccountId (providerId, providerAccountId) {
-      debug('GET_USER_BY_PROVIDER_ACCOUNT_ID', providerId, providerAccountId)
-      try {
-        const account = await manager.findOne(Account, { providerId, providerAccountId })
-        if (!account) { return null }
-        return manager.findOne(User, { [idKey]: account.userId })
-      } catch (error) {
-        logger.error('GET_USER_BY_PROVIDER_ACCOUNT_ID_ERROR', error)
-        return Promise.reject(new Error('GET_USER_BY_PROVIDER_ACCOUNT_ID_ERROR', error))
-      }
-    }
-
-    async function updateUser (user) {
-      debug('UPDATE_USER', user)
-      return manager.save(User, user)
-    }
-
-    async function deleteUser (userId) {
-      debug('DELETE_USER', userId)
-      // @TODO Delete user from DB
-      return false
-    }
-
-    async function linkAccount (userId, providerId, providerType, providerAccountId, refreshToken, accessToken, accessTokenExpires) {
-      debug('LINK_ACCOUNT', userId, providerId, providerType, providerAccountId, refreshToken, accessToken, accessTokenExpires)
-      try {
-        // Create provider account linked to user
-        const account = new Account(userId, providerId, providerType, providerAccountId, refreshToken, accessToken, accessTokenExpires)
-        return manager.save(account)
-      } catch (error) {
-        logger.error('LINK_ACCOUNT_ERROR', error)
-        return Promise.reject(new Error('LINK_ACCOUNT_ERROR', error))
-      }
-    }
-
-    async function unlinkAccount (userId, providerId, providerAccountId) {
-      debug('UNLINK_ACCOUNT', userId, providerId, providerAccountId)
-      // @TODO Get current user from DB
-      // @TODO Delete [provider] object from user object
-      // @TODO Save changes to user object in DB
-      return false
-    }
-
-    async function createSession (user) {
-      debug('CREATE_SESSION', user)
-      try {
-        let expires = null
-        if (sessionMaxAge) {
-          const dateExpires = new Date()
-          dateExpires.setTime(dateExpires.getTime() + sessionMaxAge)
-          expires = dateExpires
-        }
-
-        const session = new Session(user.id, expires)
-
-        return manager.save(session)
-      } catch (error) {
-        logger.error('CREATE_SESSION_ERROR', error)
-        return Promise.reject(new Error('CREATE_SESSION_ERROR', error))
-      }
-    }
-
-    async function getSession (sessionToken) {
-      debug('GET_SESSION', sessionToken)
-      try {
-        const session = await manager.findOne(Session, { sessionToken })
-
-        // Check session has not expired (do not return it if it has)
-        if (session && session.expires && new Date() > new Date(session.expires)) {
-          // @TODO Delete old sessions from database
-          return null
-        }
-
-        return session
-      } catch (error) {
-        logger.error('GET_SESSION_ERROR', error)
-        return Promise.reject(new Error('GET_SESSION_ERROR', error))
-      }
-    }
-
-    async function updateSession (session, force) {
-      debug('UPDATE_SESSION', session)
-      try {
-        if (sessionMaxAge && (sessionUpdateAge || sessionUpdateAge === 0) && session.expires) {
-          // Calculate last updated date, to throttle write updates to database
-          // Formula: ({expiry date} - sessionMaxAge) + sessionUpdateAge
-          //     e.g. ({expiry date} - 30 days) + 1 hour
-          //
-          // Default for sessionMaxAge is 30 days.
-          // Default for sessionUpdateAge is 1 hour.
-          const dateSessionIsDueToBeUpdated = new Date(session.expires)
-          dateSessionIsDueToBeUpdated.setTime(dateSessionIsDueToBeUpdated.getTime() - sessionMaxAge)
-          dateSessionIsDueToBeUpdated.setTime(dateSessionIsDueToBeUpdated.getTime() + sessionUpdateAge)
-
-          // Trigger update of session expiry date and write to database, only
-          // if the session was last updated more than {sessionUpdateAge} ago
-          if (new Date() > dateSessionIsDueToBeUpdated) {
-            const newExpiryDate = new Date()
-            newExpiryDate.setTime(newExpiryDate.getTime() + sessionMaxAge)
-            session.expires = newExpiryDate
-          } else if (!force) {
-            return null
-          }
-        } else {
-          // If session MaxAge, session UpdateAge or session.expires are
-          // missing then don't even try to save changes, unless force is set.
-          if (!force) { return null }
-        }
-
-        return manager.save(Session, session)
-      } catch (error) {
-        logger.error('UPDATE_SESSION_ERROR', error)
-        return Promise.reject(new Error('UPDATE_SESSION_ERROR', error))
-      }
-    }
-
-    async function deleteSession (sessionToken) {
-      debug('DELETE_SESSION', sessionToken)
-      try {
-        return await manager.delete(Session, { sessionToken })
-      } catch (error) {
-        logger.error('DELETE_SESSION_ERROR', error)
-        return Promise.reject(new Error('DELETE_SESSION_ERROR', error))
-      }
-    }
-
-    async function createVerificationRequest (identifier, url, token, secret, provider) {
-      debug('CREATE_VERIFICATION_REQUEST', identifier)
-      try {
-        const { baseUrl } = appOptions
-        const { sendVerificationRequest, maxAge } = provider
-
-        // Store hashed token (using secret as salt) so that tokens cannot be exploited
-        // even if the contents of the database is compromised.
-        // @TODO Use bcrypt function here instead of simple salted hash
-        const hashedToken = createHash('sha256').update(`${token}${secret}`).digest('hex')
-
-        let expires = null
-        if (maxAge) {
-          const dateExpires = new Date()
-          dateExpires.setTime(dateExpires.getTime() + (maxAge * 1000))
-          expires = dateExpires
-        }
-
-        // Save to database
-        const newVerificationRequest = new VerificationRequest(identifier, hashedToken, expires)
-        const verificationRequest = await manager.save(newVerificationRequest)
-
-        // With the verificationCallback on a provider, you can send an email, or queue
-        // an email to be sent, or perform some other action (e.g. send a text message)
-        await sendVerificationRequest({ identifier, url, token, baseUrl, provider })
-
-        return verificationRequest
-      } catch (error) {
-        logger.error('CREATE_VERIFICATION_REQUEST_ERROR', error)
-        return Promise.reject(new Error('CREATE_VERIFICATION_REQUEST_ERROR', error))
-      }
-    }
-
-    async function getVerificationRequest (identifier, token, secret, provider) {
-      debug('GET_VERIFICATION_REQUEST', identifier, token)
-      try {
-        // Hash token provided with secret before trying to match it with database
-        // @TODO Use bcrypt instead of salted SHA-256 hash for token
-        const hashedToken = createHash('sha256').update(`${token}${secret}`).digest('hex')
-        const verificationRequest = await manager.findOne(VerificationRequest, { identifier, token: hashedToken })
-
-        if (verificationRequest && verificationRequest.expires && new Date() > new Date(verificationRequest.expires)) {
-          // Delete verification entry so it cannot be used again
-          await manager.delete(VerificationRequest, { identifier, token: hashedToken })
-          return null
-        }
-
-        return verificationRequest
-      } catch (error) {
-        logger.error('GET_VERIFICATION_REQUEST_ERROR', error)
-        return Promise.reject(new Error('GET_VERIFICATION_REQUEST_ERROR', error))
-      }
-    }
-
-    async function deleteVerificationRequest (identifier, token, secret, provider) {
-      debug('DELETE_VERIFICATION', identifier, token)
-      try {
-        // Delete verification entry so it cannot be used again
-        const hashedToken = createHash('sha256').update(`${token}${secret}`).digest('hex')
-        await manager.delete(VerificationRequest, { identifier, token: hashedToken })
-      } catch (error) {
-        logger.error('DELETE_VERIFICATION_REQUEST_ERROR', error)
-        return Promise.reject(new Error('DELETE_VERIFICATION_REQUEST_ERROR', error))
-      }
-    }
-
-    return Promise.resolve({
-      createUser,
-      getUser,
-      getUserByEmail,
-      getUserByProviderAccountId,
-      updateUser,
-      deleteUser,
-      linkAccount,
-      unlinkAccount,
-      createSession,
-      getSession,
-      updateSession,
-      deleteSession,
-      createVerificationRequest,
-      getVerificationRequest,
-      deleteVerificationRequest
-    })
-  }
-
-  return {
-    getAdapter
-  }
-}
-
-export default {
-  Adapter,
-  Models
-}

src/adapters/typeorm/lib/config.js

@@ -1,84 +0,0 @@
-import { EntitySchema } from 'typeorm'
-
-const parseConnectionString = (configString) => {
-  if (typeof configString !== 'string') { return configString }
-
-  // If the input is URL string, automatically convert the string to an object
-  // to make configuration easier (in most use cases).
-  //
-  // TypeORM accepts connection string as a 'url' option, but unfortunately
-  // not for all databases (e.g. SQLite) or for all options, so we handle
-  // parsing it in this function.
-  try {
-    const parsedUrl = new URL(configString)
-    const config = {}
-
-    if (parsedUrl.protocol.startsWith('mongodb+srv')) {
-      // Special case handling is required for mongodb+srv with TypeORM
-      config.type = 'mongodb'
-      config.url = configString.replace(/\?(.*)$/, '')
-      config.useNewUrlParser = true
-    } else {
-      config.type = parsedUrl.protocol.replace(/:$/, '')
-      config.host = parsedUrl.hostname
-      config.port = Number(parsedUrl.port)
-      config.username = parsedUrl.username
-      config.password = parsedUrl.password
-      config.database = parsedUrl.pathname.replace(/^\//, '').replace(/\?(.*)$/, '')
-      config.options = {}
-    }
-
-    // This option is recommended by mongodb
-    if (config.type === 'mongodb') {
-      config.useUnifiedTopology = true
-    }
-
-    // Prevents warning about deprecated option (sets default value)
-    if (config.type === 'mssql') {
-      config.options.enableArithAbort = true
-    }
-
-    if (parsedUrl.search) {
-      parsedUrl.search.replace(/^\?/, '').split('&').forEach(keyValuePair => {
-        let [key, value] = keyValuePair.split('=')
-        // Converts true/false strings to actual boolean values
-        if (value === 'true') { value = true }
-        if (value === 'false') { value = false }
-        config[key] = value
-      })
-    }
-
-    return config
-  } catch (error) {
-    // If URL parsing fails for any reason, try letting TypeORM handle it
-    return {
-      url: configString
-    }
-  }
-}
-
-const loadConfig = (config, { models, namingStrategy }) => {
-  const defaultConfig = {
-    name: 'nextauth',
-    autoLoadEntities: true,
-    entities: [
-      new EntitySchema(models.User.schema),
-      new EntitySchema(models.Account.schema),
-      new EntitySchema(models.Session.schema),
-      new EntitySchema(models.VerificationRequest.schema)
-    ],
-    timezone: 'Z', // Required for timestamps to be treated as UTC in MySQL
-    logging: false,
-    namingStrategy
-  }
-
-  return {
-    ...defaultConfig,
-    ...config
-  }
-}
-
-export default {
-  parseConnectionString,
-  loadConfig
-}

src/adapters/typeorm/lib/naming-strategies.js

@@ -1,45 +0,0 @@
-// Inspired by https://github.com/tonivj5/typeorm-naming-strategies
-import { DefaultNamingStrategy } from 'typeorm'
-import { snakeCase, camelCase } from 'typeorm/util/StringUtils'
-
-export class SnakeCaseNamingStrategy extends DefaultNamingStrategy {
-  // Pluralise table names (set customName to override)
-  tableName (className, customName) {
-    return customName || snakeCase(`${className}s`)
-  }
-
-  columnName (propertyName, customName, embeddedPrefixes) {
-    return `${snakeCase(embeddedPrefixes.join('_'))}${customName || snakeCase(propertyName)}`
-  }
-
-  relationName (propertyName) {
-    return snakeCase(propertyName)
-  }
-
-  joinColumnName (relationName, referencedColumnName) {
-    return snakeCase(`${relationName}_${referencedColumnName}`)
-  }
-
-  joinTableName (firstTableName, secondTableName, firstPropertyName, secondPropertyName) {
-    return snakeCase(`${firstTableName}_${firstPropertyName.replace(/\./gi, '_')}_${secondTableName}`)
-  }
-
-  joinTableColumnName (tableName, propertyName, columnName) {
-    return snakeCase(`${tableName}_${(columnName || propertyName)}`)
-  }
-
-  classTableInheritanceParentColumnName (parentTableName, parentTableIdPropertyName) {
-    return snakeCase(`${parentTableName}_${parentTableIdPropertyName}`)
-  }
-
-  eagerJoinRelationAlias (alias, propertyPath) {
-    return `${alias}__${propertyPath.replace('.', '_')}`
-  }
-}
-
-export class CamelCaseNamingStrategy extends DefaultNamingStrategy {
-  // Pluralise collection names, uses (set customName to override)
-  tableName (className, customName) {
-    return customName || camelCase(`${className}s`)
-  }
-}

src/adapters/typeorm/lib/transform.js

@@ -1,166 +0,0 @@
-// Perform transforms on SQL models so they can be used with other databases
-import { SnakeCaseNamingStrategy, CamelCaseNamingStrategy } from './naming-strategies'
-
-const postgresTransform = (models, options) => {
-  // Apply snake case naming strategy for Postgres databases
-  if (!options.namingStrategy) {
-    options.namingStrategy = new SnakeCaseNamingStrategy()
-  }
-
-  // For Postgres we need to use the `timestamp with time zone` type
-  // aka `timestamptz` to store timestamps correctly in UTC.
-  for (const model in models) {
-    for (const column in models[model].schema.columns) {
-      if (models[model].schema.columns[column].type === 'timestamp') {
-        models[model].schema.columns[column].type = 'timestamptz'
-      }
-    }
-  }
-}
-
-const mysqlTransform = (models, options) => {
-  // Apply snake case naming strategy for MySQL databases
-  if (!options.namingStrategy) {
-    options.namingStrategy = new SnakeCaseNamingStrategy()
-  }
-
-  // For MySQL we default milisecond precision of all timestamps to 6 digits.
-  // This ensures all timestamp fields use the same precision (unless explictly
-  // configured otherwise) and that values in MySQL match those Postgress.
-  for (const model in models) {
-    for (const column in models[model].schema.columns) {
-      if (models[model].schema.columns[column].type === 'timestamp') {
-        // If precision explictly set (including to null) don't change it
-        if (typeof models[model].schema.columns[column].precision === 'undefined') {
-          models[model].schema.columns[column].precision = 6
-        }
-      }
-    }
-  }
-}
-
-const mongodbTransform = (models, options) => {
-  // A CamelCase naming strategy is used for all document databases
-  if (!options.namingStrategy) {
-    options.namingStrategy = new CamelCaseNamingStrategy()
-  }
-
-  // Important!
-  //
-  // 1. You must set 'objectId: true' on one property on a model in MongoDB.
-  //
-  //   'objectId' MUST be set on the primary ID field. This overrides other
-  //   values on that object in TypeORM (e.g. type: 'int' or 'primary').
-  //
-  // 2. Other properties that are Object IDs in the same model MUST be set to
-  //    type: 'objectId' (and should not be set to `objectId: true`).
-  //
-  //    If you set 'objectId: true' on multiple properties on a model you will
-  //    see the result of queries like find() is wrong. You will see the same
-  //    Object ID in every property of type Object ID in the result (but the
-  //    database will look fine); so use `type: 'objectId'` for them instead.
-  for (const model in models) {
-    delete models[model].schema.columns.id.type
-    models[model].schema.columns.id.objectId = true
-  }
-
-  // Ensure reference to User ID in other models are Object IDs
-  // This needs to done for any properties that reference another entity by ID
-  models.Account.schema.columns.userId.type = 'objectId'
-  models.Session.schema.columns.userId.type = 'objectId'
-
-  // The options `unique: true` and `nullable: true` don't work the same
-  // with MongoDB as they do with SQL databases like MySQL and Postgres,
-  // we need to create a sparse index to only allow unique values, while
-  // still allowing multiple entires to omit the email address.
-  delete models.User.schema.columns.email.unique
-
-  if (!models.User.schema.indices) { models.User.schema.indices = [] }
-
-  models.User.schema.indices.push({
-    name: 'email',
-    unique: true,
-    sparse: true,
-    columns: ['email']
-  })
-}
-
-const sqliteTransform = (models, options) => {
-  // Apply snake case naming strategy for SQLite databases
-  if (!options.namingStrategy) {
-    options.namingStrategy = new SnakeCaseNamingStrategy()
-  }
-
-  // SQLite does not support `timestamp` fields so we remap them to `datetime`
-  // in all models.
-  //
-  // `timestamp` is an ANSI SQL specification and widely supported by other
-  // databases so this transform is a specific workaround required for SQLite.
-  //
-  // NB: SQLite adds 'create' and 'update' fields to allow rows, but that is
-  // specific to SQLite and so we ignore that behaviour.
-  for (const model in models) {
-    for (const column in models[model].schema.columns) {
-      if (models[model].schema.columns[column].type === 'timestamp') {
-        models[model].schema.columns[column].type = 'datetime'
-      }
-    }
-  }
-}
-
-const mssqlTransform = (models, options) => {
-  // Apply snake case naming strategy for SQL Server databases
-  if (!options.namingStrategy) {
-    // @TODO Add TitleCase instead as more common MSSQL convention?
-    options.namingStrategy = new SnakeCaseNamingStrategy()
-  }
-
-  // SQL Server deprecated TIMESTAMP in favor of ROWVERSION.
-  // But ROWVERSION is not what it was intended in the other adapters.
-  for (const model in models) {
-    for (const column in models[model].schema.columns) {
-      if (models[model].schema.columns[column].type === 'timestamp') {
-        models[model].schema.columns[column].type = 'datetime'
-      }
-    }
-  }
-
-  // Support UNIQUE on on User.email that allows duplicate NULL values
-  // Note: This is ANSI SQL behaviour for UNIQUE not default in SQL Server
-  delete models.User.schema.columns.email.unique
-
-  if (!models.User.schema.indices) { models.User.schema.indices = [] }
-
-  models.User.schema.indices.push({
-    name: 'email',
-    columns: ['email'],
-    unique: true,
-    where: 'email IS NOT NULL'
-  })
-}
-
-export default (config, models, options) => {
-  // @TODO Refactor into switch statement
-  if ((config.type && config.type.startsWith('mongodb')) ||
-      (config.url && config.url.startsWith('mongodb'))) {
-    mongodbTransform(models, options)
-  } else if ((config.type && config.type.startsWith('postgres')) ||
-             (config.url && config.url.startsWith('postgres'))) {
-    postgresTransform(models, options)
-  } else if ((config.type && config.type.startsWith('mysql')) ||
-            (config.url && config.url.startsWith('mysql'))) {
-    mysqlTransform(models, options)
-  } else if ((config.type && config.type.startsWith('sqlite')) ||
-             (config.url && config.url.startsWith('sqlite'))) {
-    sqliteTransform(models, options)
-  } else if ((config.type && config.type.startsWith('mssql')) ||
-             (config.url && config.url.startsWith('mssql'))) {
-    mssqlTransform(models, options)
-  } else {
-    // For all other SQL databases (e.g. MySQL) apply snake case naming
-    // strategy, but otherwise use the models and schemas as they are.
-    if (!options.namingStrategy) {
-      options.namingStrategy = new SnakeCaseNamingStrategy()
-    }
-  }
-}

src/adapters/typeorm/lib/utils.js

@@ -1,18 +0,0 @@
-const entitiesChanged = (prevEntities, newEntities) => {
-  if (prevEntities.length !== newEntities.length) return true
-  for (let i = 0; i < prevEntities.length; i++) {
-    if (prevEntities[i] !== newEntities[i]) return true
-  }
-  return false
-}
-
-export const updateConnectionEntities = async (connection, entities) => {
-  // Check if the entities passed have changed and if so replace them
-  // and re-sync the typeorm connection.
-  if (!connection || !entitiesChanged(connection.options.entities, entities)) return
-  connection.options.entities = entities
-  connection.buildMetadatas()
-  if (connection.options.synchronize) {
-    await connection.synchronize()
-  }
-}

src/adapters/typeorm/models/account.js

@@ -1,94 +0,0 @@
-import { createHash } from 'crypto'
-
-export class Account {
-  constructor (
-    userId,
-    providerId,
-    providerType,
-    providerAccountId,
-    refreshToken,
-    accessToken,
-    accessTokenExpires
-  ) {
-    // The compound ID ensures there is only one entry for a given provider and account
-    this.compoundId = createHash('sha256').update(`${providerId}:${providerAccountId}`).digest('hex')
-    this.userId = userId
-    this.providerType = providerType
-    this.providerId = providerId
-    this.providerAccountId = providerAccountId
-    this.refreshToken = refreshToken
-    this.accessToken = accessToken
-    this.accessTokenExpires = accessTokenExpires
-  }
-}
-
-export const AccountSchema = {
-  name: 'Account',
-  target: Account,
-  columns: {
-    id: {
-      // This property has `objectId: true` instead of `type: int` in MongoDB
-      primary: true,
-      type: 'int',
-      generated: true
-    },
-    compoundId: {
-      // The compound ID ensures that there there is only one instance of an
-      // OAuth account in a way that works across different databases.
-      // It is not used for anything else.
-      type: 'varchar',
-      unique: true
-    },
-    userId: {
-      // This property is set to `type: objectId` on MongoDB databases
-      type: 'int'
-    },
-    providerType: {
-      type: 'varchar'
-    },
-    providerId: {
-      type: 'varchar'
-    },
-    providerAccountId: {
-      type: 'varchar'
-    },
-    refreshToken: {
-      type: 'text',
-      nullable: true
-    },
-    accessToken: {
-      // AccessTokens are not (yet) automatically rotated by NextAuth.js
-      // You can update it using the refreshToken and the accessTokenUrl endpoint for the provider
-      type: 'text',
-      nullable: true
-    },
-    accessTokenExpires: {
-      // AccessTokens expiry times are not (yet) updated by NextAuth.js
-      // You can update it using the refreshToken and the accessTokenUrl endpoint for the provider
-      type: 'timestamp',
-      nullable: true
-    },
-    createdAt: {
-      type: 'timestamp',
-      createDate: true
-    },
-    updatedAt: {
-      type: 'timestamp',
-      updateDate: true
-    }
-  },
-  indices: [
-    {
-      name: 'userId',
-      columns: ['userId']
-    },
-    {
-      name: 'providerId',
-      columns: ['providerId']
-    },
-    {
-      name: 'providerAccountId',
-      columns: ['providerAccountId']
-    }
-  ]
-}

src/adapters/typeorm/models/index.js

@@ -1,23 +0,0 @@
-import { Account, AccountSchema } from './account'
-import { User, UserSchema } from './user'
-import { Session, SessionSchema } from './session'
-import { VerificationRequest, VerificationRequestSchema } from './verification-request'
-
-export default {
-  Account: {
-    model: Account,
-    schema: AccountSchema
-  },
-  User: {
-    model: User,
-    schema: UserSchema
-  },
-  Session: {
-    model: Session,
-    schema: SessionSchema
-  },
-  VerificationRequest: {
-    model: VerificationRequest,
-    schema: VerificationRequestSchema
-  }
-}

src/adapters/typeorm/models/session.js

@@ -1,50 +0,0 @@
-import { randomBytes } from 'crypto'
-
-export class Session {
-  constructor (userId, expires, sessionToken, accessToken) {
-    this.userId = userId
-    this.expires = expires
-    this.sessionToken = sessionToken || randomBytes(32).toString('hex')
-    this.accessToken = accessToken || randomBytes(32).toString('hex')
-  }
-}
-
-export const SessionSchema = {
-  name: 'Session',
-  target: Session,
-  columns: {
-    id: {
-      // This property has `objectId: true` instead of `type: int` in MongoDB
-      primary: true,
-      type: 'int',
-      generated: true
-    },
-    userId: {
-      // This property is set to `type: objectId` on MongoDB databases
-      type: 'int'
-    },
-    expires: {
-      // The date the session expires (is updated when a session is active)
-      type: 'timestamp'
-    },
-    sessionToken: {
-      // The sessionToken should never be exposed to client side JavaScript
-      type: 'varchar',
-      unique: true
-    },
-    accessToken: {
-      // The accessToken can be safely exposed to client side JavaScript to
-      // to identify the owner of a session without exposing the sessionToken
-      type: 'varchar',
-      unique: true
-    },
-    createdAt: {
-      type: 'timestamp',
-      createDate: true
-    },
-    updatedAt: {
-      type: 'timestamp',
-      updateDate: true
-    }
-  }
-}

src/adapters/typeorm/models/user.js

@@ -1,58 +0,0 @@
-export class User {
-  constructor (name, email, image, emailVerified) {
-    if (name) { this.name = name }
-    if (email) { this.email = email }
-    if (image) { this.image = image }
-    if (emailVerified) {
-      const currentDate = new Date()
-      this.emailVerified = currentDate
-    }
-  }
-}
-
-export const UserSchema = {
-  name: 'User',
-  target: User,
-  columns: {
-    id: {
-      // This property has `objectId: true` instead of `type: int` in MongoDB
-      primary: true,
-      type: 'int',
-      generated: true
-    },
-    name: {
-      type: 'varchar',
-      nullable: true
-    },
-    email: {
-      // This is inherited from the one in the OAuth provider profile on
-      // initial sign in, if one is specified in that profile.
-      type: 'varchar',
-      unique: true,
-      nullable: true
-    },
-    emailVerified: {
-      // Contains a timestamp of the last time an action was performed that
-      // confirmed this email address was active and used by the user (e.g.
-      // when an email sign in link is clicked on and verified). Is null
-      // if the email address specified has never been verified.
-      type: 'timestamp',
-      nullable: true
-    },
-    image: {
-      // A URL that points to an avatar to use for the user.
-      // This is inherited from the one in the OAuth provider profile on
-      // initial sign in, if one is specified in that profile.
-      type: 'varchar',
-      nullable: true
-    },
-    createdAt: {
-      type: 'timestamp',
-      createDate: true
-    },
-    updatedAt: {
-      type: 'timestamp',
-      updateDate: true
-    }
-  }
-}

src/adapters/typeorm/models/verification-request.js

@@ -1,44 +0,0 @@
-// This model is used for sign in emails, but is designed to support other
-// mechanisms in future (e.g. 2FA via text message or short codes)
-export class VerificationRequest {
-  constructor (identifier, token, expires) {
-    if (identifier) { this.identifier = identifier }
-    if (token) { this.token = token }
-    if (expires) { this.expires = expires }
-  }
-}
-
-export const VerificationRequestSchema = {
-  name: 'VerificationRequest',
-  target: VerificationRequest,
-  columns: {
-    id: {
-      // This property has `objectId: true` instead of `type: int` in MongoDB
-      primary: true,
-      type: 'int',
-      generated: true
-    },
-    identifier: {
-      // An email address, phone number, username or other unique identifier
-      // associated with the request (used to track who it was on behalf of)
-      type: 'varchar'
-    },
-    token: {
-      // The token used verify the request (maybe hashed or encrypted)
-      type: 'varchar',
-      unique: true
-    },
-    expires: {
-      // After this time, the request will no longer ve valid
-      type: 'timestamp'
-    },
-    createdAt: {
-      type: 'timestamp',
-      createDate: true
-    },
-    updatedAt: {
-      type: 'timestamp',
-      updateDate: true
-    }
-  }
-}

src/client/__tests__/client-provider.test.js

@@ -0,0 +1,188 @@
+import { rest } from "msw"
+import { render, screen, waitFor } from "@testing-library/react"
+import { server, mockSession } from "./helpers/mocks"
+import { printFetchCalls } from "./helpers/utils"
+import { SessionProvider, useSession, signOut, getSession } from "../../react"
+
+const origDocumentVisibility = document.visibilityState
+const fetchSpy = jest.spyOn(global, "fetch")
+
+beforeAll(() => {
+  server.listen()
+})
+
+afterEach(() => {
+  server.resetHandlers()
+  changeTabVisibility(origDocumentVisibility)
+  fetchSpy.mockClear()
+})
+
+afterAll(() => {
+  server.close()
+})
+
+test("fetches the session once and re-uses it for different consumers", async () => {
+  render(<ProviderFlow />)
+
+  expect(screen.getByTestId("session-1")).toHaveTextContent("loading")
+  expect(screen.getByTestId("session-2")).toHaveTextContent("loading")
+
+  return waitFor(() => {
+    expect(fetchSpy).toHaveBeenCalledTimes(1)
+
+    expect(fetchSpy).toHaveBeenCalledWith(
+      "/api/auth/session",
+      expect.anything()
+    )
+
+    const session1 = screen.getByTestId("session-1").textContent
+    const session2 = screen.getByTestId("session-2").textContent
+
+    expect(session1).toEqual(session2)
+  })
+})
+
+test("when there's an existing session, it won't try to fetch a new one straightaway", async () => {
+  render(<ProviderFlow session={mockSession} />)
+
+  expect(fetchSpy).not.toHaveBeenCalled()
+})
+
+test("will refetch the session when the browser tab becomes active again", async () => {
+  render(<ProviderFlow session={mockSession} />)
+
+  expect(fetchSpy).not.toHaveBeenCalled()
+
+  // Hide the current tab
+  changeTabVisibility("hidden")
+
+  // Given the current tab got hidden, it should not attempt to re-fetch the session
+  expect(fetchSpy).not.toHaveBeenCalled()
+
+  // Make the tab again visible
+  changeTabVisibility("visible")
+
+  // Given the user made the tab visible again, now attempts to sync and re-fetch the session
+  return waitFor(() => {
+    expect(fetchSpy).toHaveBeenCalledTimes(1)
+    expect(fetchSpy).toHaveBeenCalledWith(
+      "/api/auth/session",
+      expect.anything()
+    )
+  })
+})
+
+test("will refetch the session if told to do so programmatically from another window", async () => {
+  render(<ProviderFlow session={mockSession} />)
+
+  expect(fetchSpy).not.toHaveBeenCalled()
+
+  // Hide the current tab
+  changeTabVisibility("hidden")
+
+  // Given the current tab got hidden, it should not attempt to re-fetch the session
+  expect(fetchSpy).not.toHaveBeenCalled()
+
+  // simulate sign-out triggered by another tab
+  signOut({ redirect: false })
+
+  // Given signed out in another tab, it attempts to sync and re-fetch the session
+  return waitFor(() => {
+    expect(fetchSpy).toHaveBeenCalledWith(
+      "/api/auth/session",
+      expect.anything()
+    )
+
+    // We should have a call to sign-out and a call to refetch the session accordingly
+    expect(printFetchCalls(fetchSpy.mock.calls)).toMatchInlineSnapshot(`
+      Array [
+        "GET /api/auth/csrf",
+        "POST /api/auth/signout",
+        "GET /api/auth/session",
+      ]
+    `)
+  })
+})
+
+test("allows to customize how often the session will be re-fetched through polling", () => {
+  jest.useFakeTimers()
+
+  render(<ProviderFlow session={mockSession} refetchInterval={1} />)
+
+  // we provided a mock session so it shouldn't try to fetch a new one
+  expect(fetchSpy).not.toHaveBeenCalled()
+
+  jest.advanceTimersByTime(1000)
+
+  expect(fetchSpy).toHaveBeenCalledTimes(1)
+  expect(fetchSpy).toHaveBeenCalledWith("/api/auth/session", expect.anything())
+
+  jest.advanceTimersByTime(1000)
+
+  // it should have tried to refetch the session, hence counting 2 calls to the session endpoint
+  expect(fetchSpy).toHaveBeenCalledTimes(2)
+  expect(printFetchCalls(fetchSpy.mock.calls)).toMatchInlineSnapshot(`
+      Array [
+        "GET /api/auth/session",
+        "GET /api/auth/session",
+      ]
+    `)
+})
+
+test("allows to customize the URL for session fetching", async () => {
+  const myPath = "/api/v1/auth"
+
+  server.use(
+    rest.get(`${myPath}/session`, (req, res, ctx) =>
+      res(ctx.status(200), ctx.json(mockSession))
+    )
+  )
+
+  render(<ProviderFlow session={mockSession} basePath={myPath} />)
+
+  // there's an existing session so it should not try to fetch a new one
+  expect(fetchSpy).not.toHaveBeenCalled()
+
+  // force a session refetch across all clients...
+  getSession()
+
+  return waitFor(() => {
+    expect(fetchSpy).toHaveBeenCalledTimes(1)
+    expect(fetchSpy).toHaveBeenCalledWith(
+      `${myPath}/session`,
+      expect.anything()
+    )
+  })
+})
+
+function ProviderFlow(props) {
+  return (
+    <SessionProvider {...props}>
+      <SessionConsumer />
+      <SessionConsumer testId="2" />
+    </SessionProvider>
+  )
+}
+
+function SessionConsumer({ testId = 1, ...rest }) {
+  const { data: session, status } = useSession(rest)
+
+  return (
+    <div data-testid={`session-${testId}`}>
+      {status === "loading" ? "loading" : JSON.stringify(session)}
+    </div>
+  )
+}
+
+function changeTabVisibility(status) {
+  const visibleStates = ["visible", "hidden"]
+
+  if (!visibleStates.includes(status)) return
+
+  Object.defineProperty(document, "visibilityState", {
+    configurable: true,
+    value: status,
+  })
+
+  document.dispatchEvent(new Event("visibilitychange"))
+}

src/client/__tests__/csrf.test.js

@@ -0,0 +1,104 @@
+import { useState } from "react"
+import userEvent from "@testing-library/user-event"
+import { render, screen, waitFor } from "@testing-library/react"
+import { server, mockCSRFToken } from "./helpers/mocks"
+import logger from "../../lib/logger"
+import { getCsrfToken } from "../../react"
+import { rest } from "msw"
+
+jest.mock("../../lib/logger", () => ({
+  __esModule: true,
+  default: {
+    warn: jest.fn(),
+    debug: jest.fn(),
+    error: jest.fn(),
+  },
+  proxyLogger(logger) {
+    return logger
+  },
+}))
+
+beforeAll(() => {
+  server.listen()
+})
+
+afterEach(() => {
+  server.resetHandlers()
+  jest.clearAllMocks()
+})
+
+afterAll(() => {
+  server.close()
+})
+
+test("returns the Cross Site Request Forgery Token (CSRF Token) required to make POST requests", async () => {
+  render(<CSRFFlow />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(screen.getByTestId("csrf-result").textContent).toEqual(
+      mockCSRFToken.csrfToken
+    )
+  })
+})
+
+test("when there's no CSRF token returned, it'll reflect that", async () => {
+  server.use(
+    rest.get("/api/auth/csrf", (req, res, ctx) =>
+      res(
+        ctx.status(200),
+        ctx.json({
+          ...mockCSRFToken,
+          csrfToken: null,
+        })
+      )
+    )
+  )
+
+  render(<CSRFFlow />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(screen.getByTestId("csrf-result").textContent).toBe("null-response")
+  })
+})
+
+test("when the fetch fails it'll throw a client fetch error", async () => {
+  server.use(
+    rest.get("/api/auth/csrf", (req, res, ctx) =>
+      res(ctx.status(500), ctx.text("some error happened"))
+    )
+  )
+
+  render(<CSRFFlow />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(logger.error).toHaveBeenCalledTimes(1)
+    expect(logger.error).toBeCalledWith("CLIENT_FETCH_ERROR", {
+      path: "csrf",
+      error: new SyntaxError("Unexpected token s in JSON at position 0"),
+    })
+  })
+})
+
+function CSRFFlow() {
+  const [response, setResponse] = useState()
+
+  async function handleCSRF() {
+    const result = await getCsrfToken()
+    setResponse(result)
+  }
+
+  return (
+    <>
+      <p data-testid="csrf-result">
+        {response === null ? "null-response" : response || "no response"}
+      </p>
+      <button onClick={handleCSRF}>Get CSRF</button>
+    </>
+  )
+}

src/client/__tests__/helpers/mocks.js

@@ -0,0 +1,92 @@
+import { setupServer } from "msw/node"
+import { rest } from "msw"
+import { randomBytes } from "crypto"
+
+export const mockSession = {
+  ok: true,
+  user: {
+    image: null,
+    name: "John",
+    email: "john@email.com",
+  },
+  expires: 123213139,
+}
+
+export const mockProviders = {
+  ok: true,
+  github: {
+    id: "github",
+    name: "Github",
+    type: "oauth",
+    signinUrl: "path/to/signin",
+    callbackUrl: "path/to/callback",
+  },
+  credentials: {
+    id: "credentials",
+    name: "Credentials",
+    type: "credentials",
+    authorize: null,
+    credentials: null,
+  },
+  email: {
+    id: "email",
+    type: "email",
+    name: "Email",
+  },
+}
+
+export const mockCSRFToken = {
+  ok: true,
+  csrfToken: randomBytes(32).toString("hex"),
+}
+
+export const mockGithubResponse = {
+  ok: true,
+  status: 200,
+  url: "https://path/to/github/url",
+}
+
+export const mockCredentialsResponse = {
+  ok: true,
+  status: 200,
+  url: "https://path/to/credentials/url",
+}
+
+export const mockEmailResponse = {
+  ok: true,
+  status: 200,
+  url: "https://path/to/email/url",
+}
+
+export const mockSignOutResponse = {
+  ok: true,
+  status: 200,
+  url: "https://path/to/signout/url",
+}
+
+export const server = setupServer(
+  rest.post("http://localhost/api/auth/signout", (req, res, ctx) =>
+    res(ctx.status(200), ctx.json(mockSignOutResponse))
+  ),
+  rest.get("http://localhost/api/auth/session", (req, res, ctx) =>
+    res(ctx.status(200), ctx.json(mockSession))
+  ),
+  rest.get("http://localhost/api/auth/csrf", (req, res, ctx) =>
+    res(ctx.status(200), ctx.json(mockCSRFToken))
+  ),
+  rest.get("http://localhost/api/auth/providers", (req, res, ctx) =>
+    res(ctx.status(200), ctx.json(mockProviders))
+  ),
+  rest.post("http://localhost/api/auth/signin/github", (req, res, ctx) =>
+    res(ctx.status(200), ctx.json(mockGithubResponse))
+  ),
+  rest.post("http://localhost/api/auth/callback/credentials", (req, res, ctx) =>
+    res(ctx.status(200), ctx.json(mockCredentialsResponse))
+  ),
+  rest.post("http://localhost/api/auth/signin/email", (req, res, ctx) =>
+    res(ctx.status(200), ctx.json(mockEmailResponse))
+  ),
+  rest.post("http://localhost/api/auth/_log", (req, res, ctx) =>
+    res(ctx.status(200))
+  )
+)

src/client/__tests__/helpers/utils.js

@@ -0,0 +1,14 @@
+export function getBroadcastEvents() {
+  return window.localStorage.setItem.mock.calls
+    .filter((call) => call[0] === "nextauth.message")
+    .map(([eventName, value]) => {
+      const { timestamp, ...rest } = JSON.parse(value)
+      return { eventName, value: rest }
+    })
+}
+
+export function printFetchCalls(mockCalls) {
+  return mockCalls.map(([path, { method = "GET" }]) => {
+    return `${method.toUpperCase()} ${path}`
+  })
+}

src/client/__tests__/providers.test.js

@@ -0,0 +1,84 @@
+import { useState } from "react"
+import userEvent from "@testing-library/user-event"
+import { render, screen, waitFor } from "@testing-library/react"
+import { server, mockProviders } from "./helpers/mocks"
+import { getProviders } from "../../react"
+import logger from "../../lib/logger"
+import { rest } from "msw"
+
+jest.mock("../../lib/logger", () => ({
+  __esModule: true,
+  default: {
+    warn: jest.fn(),
+    debug: jest.fn(),
+    error: jest.fn(),
+  },
+  proxyLogger(logger) {
+    return logger
+  },
+}))
+
+beforeAll(() => {
+  server.listen()
+})
+
+afterEach(() => {
+  server.resetHandlers()
+  jest.clearAllMocks()
+})
+
+afterAll(() => {
+  server.close()
+})
+
+test("when called it'll return the currently configured providers for sign in", async () => {
+  render(<ProvidersFlow />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(screen.getByTestId("providers-result").textContent).toEqual(
+      JSON.stringify(mockProviders)
+    )
+  })
+})
+
+test("when failing to fetch the providers, it'll log the error", async () => {
+  server.use(
+    rest.get("/api/auth/providers", (req, res, ctx) =>
+      res(ctx.status(500), ctx.text("some error happened"))
+    )
+  )
+
+  render(<ProvidersFlow />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(logger.error).toHaveBeenCalledTimes(1)
+    expect(logger.error).toBeCalledWith("CLIENT_FETCH_ERROR", {
+      path: "providers",
+      error: new SyntaxError("Unexpected token s in JSON at position 0"),
+    })
+  })
+})
+
+function ProvidersFlow() {
+  const [response, setResponse] = useState()
+
+  async function handleGerProviders() {
+    const result = await getProviders()
+    setResponse(result)
+  }
+
+  return (
+    <>
+      <p data-testid="providers-result">
+        {response === null
+          ? "null-response"
+          : JSON.stringify(response) || "no response"}
+      </p>
+      <button onClick={handleGerProviders}>Get Providers</button>
+    </>
+  )
+}

src/client/__tests__/session.test.js

@@ -0,0 +1,97 @@
+import { render, screen, waitFor } from "@testing-library/react"
+import { rest } from "msw"
+import { server, mockSession } from "./helpers/mocks"
+import logger from "../../lib/logger"
+import { useState, useEffect } from "react"
+import { getSession } from "../../react"
+import { getBroadcastEvents } from "./helpers/utils"
+
+jest.mock("../../lib/logger", () => ({
+  __esModule: true,
+  default: {
+    warn: jest.fn(),
+    debug: jest.fn(),
+    error: jest.fn(),
+  },
+  proxyLogger(logger) {
+    return logger
+  },
+}))
+
+beforeAll(() => server.listen())
+
+beforeEach(() => {
+  // eslint-disable-next-line no-proto
+  jest.spyOn(window.localStorage.__proto__, "setItem")
+})
+
+afterEach(() => {
+  server.resetHandlers()
+  jest.clearAllMocks()
+})
+
+afterAll(() => {
+  server.close()
+})
+
+test("if it can fetch the session, it should store it in `localStorage`", async () => {
+  render(<SessionFlow />)
+
+  // In the start, there is no session
+  const noSession = await screen.findByText("No session")
+  expect(noSession).toBeInTheDocument()
+
+  // After we fetched the session, it should have been rendered by `<SessionFlow />`
+  const session = await screen.findByText(new RegExp(mockSession.user.name))
+  expect(session).toBeInTheDocument()
+
+  const broadcastCalls = getBroadcastEvents()
+  const [broadcastedEvent] = broadcastCalls
+
+  expect(broadcastCalls).toHaveLength(1)
+  expect(broadcastCalls).toHaveLength(1)
+  expect(broadcastedEvent.eventName).toBe("nextauth.message")
+  expect(broadcastedEvent.value).toStrictEqual({
+    data: {
+      trigger: "getSession",
+    },
+    event: "session",
+  })
+})
+
+test("if there's an error fetching the session, it should log it", async () => {
+  server.use(
+    rest.get("/api/auth/session", (req, res, ctx) => {
+      return res(ctx.status(500), ctx.body("Server error"))
+    })
+  )
+
+  render(<SessionFlow />)
+
+  await waitFor(() => {
+    expect(logger.error).toHaveBeenCalledTimes(1)
+    expect(logger.error).toBeCalledWith("CLIENT_FETCH_ERROR", {
+      path: "session",
+      error: new SyntaxError("Unexpected token S in JSON at position 0"),
+    })
+  })
+})
+
+function SessionFlow() {
+  const [session, setSession] = useState(null)
+  useEffect(() => {
+    async function fetchUserSession() {
+      try {
+        const result = await getSession()
+        setSession(result)
+      } catch (e) {
+        console.error(e)
+      }
+    }
+    fetchUserSession()
+  }, [])
+
+  if (session) return <pre>{JSON.stringify(session, null, 2)}</pre>
+
+  return <p>No session</p>
+}

src/client/__tests__/sign-in.test.js

@@ -0,0 +1,290 @@
+import { useState } from "react"
+import userEvent from "@testing-library/user-event"
+import { render, screen, waitFor } from "@testing-library/react"
+import logger from "../../lib/logger"
+import {
+  server,
+  mockCredentialsResponse,
+  mockEmailResponse,
+  mockGithubResponse,
+} from "./helpers/mocks"
+import { signIn } from "../../react"
+import { rest } from "msw"
+
+const { location } = window
+
+jest.mock("../../lib/logger", () => ({
+  __esModule: true,
+  default: {
+    warn: jest.fn(),
+    debug: jest.fn(),
+    error: jest.fn(),
+  },
+  proxyLogger(logger) {
+    return logger
+  },
+}))
+
+beforeAll(() => {
+  server.listen()
+
+  let _href = window.location.href
+  // Allows to mutate `window.location`...
+  delete window.location
+
+  window.location = {
+    reload: jest.fn(),
+  }
+  Object.defineProperty(window.location, "href", {
+    get: () => _href,
+    // whatwg-fetch or whatwg-url does not seem to work with relative URLs
+    set: (href) => {
+      _href = href.startsWith("/") ? `http://localhost${href}` : href
+      return _href
+    },
+  })
+})
+
+beforeEach(() => {
+  jest.clearAllMocks()
+  server.resetHandlers()
+})
+
+afterAll(() => {
+  window.location = location
+  server.close()
+})
+
+const callbackUrl = "https://redirects/to"
+
+test.each`
+  provider | type
+  ${""}    | ${"no"}
+  ${"foo"} | ${"unknown"}
+`(
+  "if $type provider, it redirects to the default sign-in page",
+  async ({ provider }) => {
+    render(<SignInFlow providerId={provider} callbackUrl={callbackUrl} />)
+
+    userEvent.click(screen.getByRole("button"))
+
+    await waitFor(() => {
+      expect(window.location.href).toBe(
+        `http://localhost/api/auth/signin?${new URLSearchParams({
+          callbackUrl,
+        })}`
+      )
+    })
+  }
+)
+
+test.each`
+  provider | type
+  ${""}    | ${"no"}
+  ${"foo"} | ${"unknown"}
+`(
+  "if $type provider supplied and no callback URL, redirects using the current location",
+  async ({ provider }) => {
+    render(<SignInFlow providerId={provider} />)
+
+    const callbackUrl = window.location.href
+    userEvent.click(screen.getByRole("button"))
+
+    await waitFor(() => {
+      expect(window.location.href).toBe(
+        `http://localhost/api/auth/signin?${new URLSearchParams({
+          callbackUrl,
+        })}`
+      )
+    })
+  }
+)
+
+test.each`
+  provider         | mockUrl
+  ${`email`}       | ${mockEmailResponse.url}
+  ${`credentials`} | ${mockCredentialsResponse.url}
+`(
+  "$provider provider redirects if `redirect` is `true`",
+  async ({ provider, mockUrl }) => {
+    render(<SignInFlow providerId={provider} redirect={true} />)
+
+    userEvent.click(screen.getByRole("button"))
+
+    await waitFor(() => {
+      expect(window.location.href).toBe(mockUrl)
+    })
+  }
+)
+
+test("redirection can't be stopped using an oauth provider", async () => {
+  render(
+    <SignInFlow
+      providerId="github"
+      callbackUrl={callbackUrl}
+      redirect={false}
+    />
+  )
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(window.location.href).toBe(mockGithubResponse.url)
+  })
+})
+
+test("redirection can be stopped using the 'credentials' provider", async () => {
+  render(
+    <SignInFlow
+      providerId="credentials"
+      callbackUrl={callbackUrl}
+      redirect={false}
+    />
+  )
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(window.location.href).not.toBe(mockCredentialsResponse.url)
+
+    expect(screen.getByTestId("signin-result").textContent).not.toBe(
+      "no response"
+    )
+  })
+
+  // snapshot the expected return shape from `signIn`
+  expect(JSON.parse(screen.getByTestId("signin-result").textContent))
+    .toMatchInlineSnapshot(`
+    Object {
+      "error": null,
+      "ok": true,
+      "status": 200,
+      "url": "https://path/to/credentials/url",
+    }
+  `)
+})
+
+test("redirection can be stopped using the 'email' provider", async () => {
+  render(
+    <SignInFlow providerId="email" callbackUrl={callbackUrl} redirect={false} />
+  )
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(window.location.href).not.toBe(mockEmailResponse.url)
+
+    expect(screen.getByTestId("signin-result").textContent).not.toBe(
+      "no response"
+    )
+  })
+
+  // snapshot the expected return shape from `signIn` oauth
+  expect(JSON.parse(screen.getByTestId("signin-result").textContent))
+    .toMatchInlineSnapshot(`
+    Object {
+      "error": null,
+      "ok": true,
+      "status": 200,
+      "url": "https://path/to/email/url",
+    }
+  `)
+})
+
+test("if callback URL contains a hash we force a window reload when re-directing", async () => {
+  const mockUrlWithHash = "https://path/to/email/url#foo-bar-baz"
+
+  server.use(
+    rest.post("http://localhost/api/auth/signin/email", (req, res, ctx) => {
+      return res(
+        ctx.status(200),
+        ctx.json({
+          ...mockEmailResponse,
+          url: mockUrlWithHash,
+        })
+      )
+    })
+  )
+
+  render(<SignInFlow providerId="email" callbackUrl={mockUrlWithHash} />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(window.location.href).toBe(mockUrlWithHash)
+    // the browser will not refresh the page if the redirect URL contains a hash, hence we force it on the client, see #1289
+    expect(window.location.reload).toHaveBeenCalledTimes(1)
+  })
+})
+
+test("params are propagated to the signin URL when supplied", async () => {
+  let matchedParams = ""
+  const authParams = "foo=bar&bar=foo"
+
+  server.use(
+    rest.post("http://localhost/api/auth/signin/github", (req, res, ctx) => {
+      matchedParams = req.url.search
+      return res(ctx.status(200), ctx.json(mockGithubResponse))
+    })
+  )
+
+  render(<SignInFlow providerId="github" authorizationParams={authParams} />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(matchedParams).toEqual(`?${authParams}`)
+  })
+})
+
+test("when it fails to fetch the providers, it redirected back to signin page", async () => {
+  const errorMsg = "Error when retrieving providers"
+
+  server.use(
+    rest.get("http://localhost/api/auth/providers", (req, res, ctx) =>
+      res(ctx.status(500), ctx.json(errorMsg))
+    )
+  )
+
+  render(<SignInFlow providerId="github" />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(window.location.href).toBe(`http://localhost/api/auth/error`)
+
+    expect(logger.error).toHaveBeenCalledTimes(1)
+    expect(logger.error).toBeCalledWith("CLIENT_FETCH_ERROR", {
+      error: "Error when retrieving providers",
+      path: "providers",
+    })
+  })
+})
+
+function SignInFlow({
+  providerId,
+  callbackUrl,
+  redirect = true,
+  authorizationParams = {},
+}) {
+  const [response, setResponse] = useState(null)
+
+  async function handleSignIn() {
+    const result = await signIn(
+      providerId,
+      { callbackUrl, redirect },
+      authorizationParams
+    )
+
+    setResponse(result)
+  }
+
+  return (
+    <>
+      <p data-testid="signin-result">
+        {response ? JSON.stringify(response) : "no response"}
+      </p>
+      <button onClick={handleSignIn}>Sign in</button>
+    </>
+  )
+}

src/client/__tests__/sign-out.test.js

@@ -0,0 +1,124 @@
+import { useState } from "react"
+import userEvent from "@testing-library/user-event"
+import { render, screen, waitFor } from "@testing-library/react"
+import { server, mockSignOutResponse } from "./helpers/mocks"
+import { signOut } from "../../react"
+import { rest } from "msw"
+import { getBroadcastEvents } from "./helpers/utils"
+
+const { location } = window
+
+beforeAll(() => {
+  server.listen()
+  // Allows to mutate `window.location`...
+  delete window.location
+  window.location = {
+    reload: jest.fn(),
+    href: location.href,
+  }
+})
+
+beforeEach(() => {
+  // eslint-disable-next-line no-proto
+  jest.spyOn(window.localStorage.__proto__, "setItem")
+})
+
+afterEach(() => {
+  jest.clearAllMocks()
+  server.resetHandlers()
+})
+
+afterAll(() => {
+  window.location = location
+  server.close()
+})
+
+const callbackUrl = "https://redirects/to"
+
+test("by default it redirects to the current URL if the server did not provide one", async () => {
+  server.use(
+    rest.post("http://localhost/api/auth/signout", (req, res, ctx) =>
+      res(ctx.status(200), ctx.json({ ...mockSignOutResponse, url: undefined }))
+    )
+  )
+
+  render(<SignOutFlow />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(window.location.href).toBe(window.location.href)
+  })
+})
+
+test("it redirects to the URL allowed by the server", async () => {
+  render(<SignOutFlow callbackUrl={callbackUrl} />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(window.location.href).toBe(mockSignOutResponse.url)
+  })
+})
+
+test("if url contains a hash during redirection a page reload happens", async () => {
+  const mockUrlWithHash = "https://path/to/email/url#foo-bar-baz"
+
+  server.use(
+    rest.post("http://localhost/api/auth/signout", (req, res, ctx) => {
+      return res(
+        ctx.status(200),
+        ctx.json({
+          ...mockSignOutResponse,
+          url: mockUrlWithHash,
+        })
+      )
+    })
+  )
+
+  render(<SignOutFlow />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    expect(window.location.href).toBe(mockUrlWithHash)
+  })
+})
+
+test("will broadcast the signout event to other tabs", async () => {
+  render(<SignOutFlow />)
+
+  userEvent.click(screen.getByRole("button"))
+
+  await waitFor(() => {
+    const broadcastCalls = getBroadcastEvents()
+    const [broadcastedEvent] = broadcastCalls
+
+    expect(broadcastCalls).toHaveLength(1)
+    expect(broadcastedEvent.eventName).toBe("nextauth.message")
+    expect(broadcastedEvent.value).toStrictEqual({
+      data: {
+        trigger: "signout",
+      },
+      event: "session",
+    })
+  })
+})
+
+function SignOutFlow({ callbackUrl, redirect = true }) {
+  const [response, setResponse] = useState(null)
+
+  async function handleSignOut() {
+    const result = await signOut({ callbackUrl, redirect })
+    setResponse(result)
+  }
+
+  return (
+    <>
+      <p data-testid="signout-result">
+        {response ? JSON.stringify(response) : "no response"}
+      </p>
+      <button onClick={handleSignOut}>Sign out</button>
+    </>
+  )
+}

src/client/__tests__/use-session-hook.test.js

@@ -0,0 +1,140 @@
+import { rest } from "msw"
+import { renderHook } from "@testing-library/react-hooks"
+import { render, waitFor } from "@testing-library/react"
+import { SessionProvider, useSession, signOut } from "../../react"
+import { server, mockSession } from "./helpers/mocks"
+
+const origConsoleError = console.error
+const { location } = window
+
+let _href = window.location.href
+beforeAll(() => {
+  // Prevent noise on the terminal... `next-auth` will log to `console.error`
+  // every time a request fails, which makes the tests output very noisy...
+  console.error = jest.fn()
+
+  // Allows to mutate `window.location`...
+  delete window.location
+  window.location = {}
+  Object.defineProperty(window.location, "href", {
+    get: () => _href,
+    // whatwg-fetch or whatwg-url does not seem to work with relative URLs
+    set: (href) => {
+      _href = href.startsWith("/") ? `http://localhost${href}` : href
+      return _href
+    },
+  })
+
+  server.listen()
+})
+
+afterEach(() => {
+  server.resetHandlers()
+  _href = "http://localhost/"
+
+  // clear the internal session cache...
+  signOut({ redirect: false })
+})
+
+afterAll(() => {
+  console.error = origConsoleError
+  window.location = location
+  server.close()
+})
+
+test("it won't allow to fetch the session in isolation without a session context", () => {
+  function App() {
+    useSession()
+    return null
+  }
+
+  expect(() => render(<App />)).toThrow(
+    "[next-auth]: `useSession` must be wrapped in a <SessionProvider />"
+  )
+})
+
+test("when fetching the session, there won't be `data` and `status` will be 'loading'", () => {
+  const { result } = renderHook(() => useSession(), {
+    wrapper: SessionProvider,
+  })
+
+  expect(result.current.data).toBe(undefined)
+  expect(result.current.status).toBe("loading")
+})
+
+test("when session is fetched, `data` will contain the session data and `status` will be 'authenticated'", async () => {
+  const { result } = renderHook(() => useSession(), {
+    wrapper: SessionProvider,
+  })
+
+  await waitFor(() => {
+    expect(result.current.data).toEqual(mockSession)
+    expect(result.current.status).toBe("authenticated")
+  })
+})
+
+test("when it fails to fetch the session, `data` will be null and `status` will be 'unauthenticated'", async () => {
+  server.use(
+    rest.get(`http://localhost/api/auth/session`, (_, res, ctx) =>
+      res(ctx.status(401), ctx.json({}))
+    )
+  )
+
+  const { result } = renderHook(() => useSession(), {
+    wrapper: SessionProvider,
+  })
+
+  return waitFor(() => {
+    expect(result.current.data).toEqual(null)
+    expect(result.current.status).toBe("unauthenticated")
+  })
+})
+
+test("it'll redirect to sign-in page if the session is required and the user is not authenticated", async () => {
+  server.use(
+    rest.get(`http://localhost/api/auth/session`, (req, res, ctx) =>
+      res(ctx.status(401), ctx.json({}))
+    )
+  )
+
+  const callbackUrl = window.location.href
+  const { result } = renderHook(() => useSession({ required: true }), {
+    wrapper: SessionProvider,
+  })
+
+  await waitFor(() => {
+    expect(result.current.data).toEqual(null)
+    expect(result.current.status).toBe("loading")
+  })
+
+  expect(window.location.href).toBe(
+    `http://localhost/api/auth/signin?${new URLSearchParams({
+      error: "SessionRequired",
+      callbackUrl,
+    })}`
+  )
+})
+
+test("will call custom redirect logic if supplied when the user could not authenticate", async () => {
+  server.use(
+    rest.get(`http://localhost/api/auth/session`, (_, res, ctx) =>
+      res(ctx.status(401), ctx.json({}))
+    )
+  )
+
+  const customRedirect = jest.fn()
+
+  const { result } = renderHook(
+    () => useSession({ required: true, onUnauthenticated: customRedirect }),
+    {
+      wrapper: SessionProvider,
+    }
+  )
+
+  await waitFor(() => {
+    expect(result.current.data).toEqual(null)
+    expect(result.current.status).toBe("loading")
+  })
+
+  expect(customRedirect).toHaveBeenCalledTimes(1)
+})

src/client/_utils.ts

@@ -0,0 +1,106 @@
+import type { IncomingMessage } from "http"
+import type { LoggerInstance, Session } from ".."
+
+export interface NextAuthClientConfig {
+  baseUrl: string
+  basePath: string
+  baseUrlServer: string
+  basePathServer: string
+  /** Stores last session response */
+  _session?: Session | null | undefined
+  /** Used for timestamp since last sycned (in seconds) */
+  _lastSync: number
+  /**
+   * Stores the `SessionProvider`'s session update method to be able to
+   * trigger session updates from places like `signIn` or `signOut`
+   */
+  _getSession: (...args: any[]) => any
+}
+
+export interface CtxOrReq {
+  req?: IncomingMessage
+  ctx?: { req: IncomingMessage }
+}
+
+/**
+ * If passed 'appContext' via getInitialProps() in _app.js
+ * then get the req object from ctx and use that for the
+ * req value to allow `fetchData` to
+ * work seemlessly in getInitialProps() on server side
+ * pages *and* in _app.js.
+ */
+export async function fetchData<T = any>(
+  path: string,
+  __NEXTAUTH: NextAuthClientConfig,
+  logger: LoggerInstance,
+  { ctx, req = ctx?.req }: CtxOrReq = {}
+): Promise<T | null> {
+  try {
+    const options = req?.headers.cookie
+      ? { headers: { cookie: req.headers.cookie } }
+      : {}
+    const res = await fetch(`${apiBaseUrl(__NEXTAUTH)}/${path}`, options)
+    const data = await res.json()
+    if (!res.ok) throw data
+    return Object.keys(data).length > 0 ? data : null // Return null if data empty
+  } catch (error) {
+    logger.error("CLIENT_FETCH_ERROR", {
+      error: error as Error,
+      path,
+      ...(req ? { header: req.headers } : {}),
+    })
+    return null
+  }
+}
+
+export function apiBaseUrl(__NEXTAUTH: NextAuthClientConfig) {
+  if (typeof window === "undefined") {
+    // Return absolute path when called server side
+    return `${__NEXTAUTH.baseUrlServer}${__NEXTAUTH.basePathServer}`
+  }
+  // Return relative path when called client side
+  return __NEXTAUTH.basePath
+}
+
+/** Returns the number of seconds elapsed since January 1, 1970 00:00:00 UTC. */
+export function now() {
+  return Math.floor(Date.now() / 1000)
+}
+
+export interface BroadcastMessage {
+  event?: "session"
+  data?: { trigger?: "signout" | "getSession" }
+  clientId: string
+  timestamp: number
+}
+
+/**
+ * Inspired by [Broadcast Channel API](https://developer.mozilla.org/en-US/docs/Web/API/Broadcast_Channel_API)
+ * Only not using it directly, because Safari does not support it.
+ *
+ * https://caniuse.com/?search=broadcastchannel
+ */
+export function BroadcastChannel(name = "nextauth.message") {
+  return {
+    /** Get notified by other tabs/windows. */
+    receive(onReceive: (message: BroadcastMessage) => void) {
+      const handler = (event: StorageEvent) => {
+        if (event.key !== name) return
+        const message: BroadcastMessage = JSON.parse(event.newValue ?? "{}")
+        if (message?.event !== "session" || !message?.data) return
+
+        onReceive(message)
+      }
+      window.addEventListener("storage", handler)
+      return () => window.removeEventListener("storage", handler)
+    },
+    /** Notify other tabs/windows. */
+    post(message: Record<string, unknown>) {
+      if (typeof window === "undefined") return
+      localStorage.setItem(
+        name,
+        JSON.stringify({ ...message, timestamp: now() })
+      )
+    },
+  }
+}

src/client/index.js

@@ -1,378 +0,0 @@
-// Note about signIn() and signOut() methods:
-//
-// On signIn() and signOut() we pass 'json: true' to request a response in JSON
-// instead of HTTP as redirect URLs on other domains are not returned to
-// requests made using the fetch API in the browser, and we need to ask the API
-// to return the response as a JSON object (the end point still defaults to
-// returning an HTTP response with a redirect for non-JavaScript clients).
-//
-// We use HTTP POST requests with CSRF Tokens to protect against CSRF attacks.
-
-import { useState, useEffect, useContext, createContext, createElement } from 'react'
-import _logger, { proxyLogger } from '../lib/logger'
-import parseUrl from '../lib/parse-url'
-
-// This behaviour mirrors the default behaviour for getting the site name that
-// happens server side in server/index.js
-// 1. An empty value is legitimate when the code is being invoked client side as
-//    relative URLs are valid in that context and so defaults to empty.
-// 2. When invoked server side the value is picked up from an environment
-//    variable and defaults to 'http://localhost:3000'.
-/** @type {import("types/internals/client").NextAuthConfig} */
-const __NEXTAUTH = {
-  baseUrl: parseUrl(process.env.NEXTAUTH_URL || process.env.VERCEL_URL).baseUrl,
-  basePath: parseUrl(process.env.NEXTAUTH_URL).basePath,
-  baseUrlServer: parseUrl(process.env.NEXTAUTH_URL_INTERNAL || process.env.NEXTAUTH_URL || process.env.VERCEL_URL).baseUrl,
-  basePathServer: parseUrl(process.env.NEXTAUTH_URL_INTERNAL || process.env.NEXTAUTH_URL).basePath,
-  keepAlive: 0,
-  clientMaxAge: 0,
-  // Properties starting with _ are used for tracking internal app state
-  _clientLastSync: 0,
-  _clientSyncTimer: null,
-  _eventListenersAdded: false,
-  _clientSession: undefined,
-  _getSession: () => {}
-}
-
-const logger = proxyLogger(_logger, __NEXTAUTH.basePath)
-
-const broadcast = BroadcastChannel()
-
-// Add event listners on load
-if (typeof window !== 'undefined' && !__NEXTAUTH._eventListenersAdded) {
-  __NEXTAUTH._eventListenersAdded = true
-  // Listen for storage events and update session if event fired from
-  // another window (but suppress firing another event to avoid a loop)
-  // Fetch new session data but tell it to not to fire another event to
-  // avoid an infinite loop.
-  // Note: We could pass session data through and do something like
-  // `setData(message.data)` but that can cause problems depending
-  // on how the session object is being used in the client; it is
-  // more robust to have each window/tab fetch it's own copy of the
-  // session object rather than share it across instances.
-  broadcast.receive(() => __NEXTAUTH._getSession({ event: 'storage' }))
-
-  // Listen for document visibility change events and
-  // if visibility of the document changes, re-fetch the session.
-  document.addEventListener('visibilitychange', () => {
-    !document.hidden && __NEXTAUTH._getSession({ event: 'visibilitychange' })
-  }, false)
-}
-
-// Context to store session data globally
-/** @type {import("types/internals/client").SessionContext} */
-const SessionContext = createContext()
-
-export function useSession (session) {
-  const context = useContext(SessionContext)
-  if (context) return context
-  return _useSessionHook(session)
-}
-
-function _useSessionHook (session) {
-  const [data, setData] = useState(session)
-  const [loading, setLoading] = useState(!data)
-
-  useEffect(() => {
-    __NEXTAUTH._getSession = async ({ event = null } = {}) => {
-      try {
-        const triggredByEvent = event !== null
-        const triggeredByStorageEvent = event === 'storage'
-
-        const clientMaxAge = __NEXTAUTH.clientMaxAge
-        const clientLastSync = parseInt(__NEXTAUTH._clientLastSync)
-        const currentTime = _now()
-        const clientSession = __NEXTAUTH._clientSession
-
-        // Updates triggered by a storage event *always* trigger an update and we
-        // always update if we don't have any value for the current session state.
-        if (!triggeredByStorageEvent && clientSession !== undefined) {
-          if (clientMaxAge === 0 && triggredByEvent !== true) {
-            // If there is no time defined for when a session should be considered
-            // stale, then it's okay to use the value we have until an event is
-            // triggered which updates it.
-            return
-          } else if (clientMaxAge > 0 && clientSession === null) {
-            // If the client doesn't have a session then we don't need to call
-            // the server to check if it does (if they have signed in via another
-            // tab or window that will come through as a triggeredByStorageEvent
-            // event and will skip this logic)
-            return
-          } else if (clientMaxAge > 0 && currentTime < (clientLastSync + clientMaxAge)) {
-            // If the session freshness is within clientMaxAge then don't request
-            // it again on this call (avoids too many invokations).
-            return
-          }
-        }
-
-        if (clientSession === undefined) { __NEXTAUTH._clientSession = null }
-
-        // Update clientLastSync before making response to avoid repeated
-        // invokations that would otherwise be triggered while we are still
-        // waiting for a response.
-        __NEXTAUTH._clientLastSync = _now()
-
-        // If this call was invoked via a storage event (i.e. another window) then
-        // tell getSession not to trigger an event when it calls to avoid an
-        // infinate loop.
-        const newClientSessionData = await getSession({
-          triggerEvent: !triggeredByStorageEvent
-        })
-
-        // Save session state internally, just so we can track that we've checked
-        // if a session exists at least once.
-        __NEXTAUTH._clientSession = newClientSessionData
-
-        setData(newClientSessionData)
-        setLoading(false)
-      } catch (error) {
-        logger.error('CLIENT_USE_SESSION_ERROR', error)
-        setLoading(false)
-      }
-    }
-
-    __NEXTAUTH._getSession()
-  })
-
-  return [data, loading]
-}
-
-export async function getSession (ctx) {
-  const session = await _fetchData('session', ctx)
-  if (ctx?.triggerEvent ?? true) {
-    broadcast.post({ event: 'session', data: { trigger: 'getSession' } })
-  }
-  return session
-}
-
-export async function getCsrfToken (ctx) {
-  return (await _fetchData('csrf', ctx))?.csrfToken
-}
-
-export async function getProviders () {
-  return _fetchData('providers')
-}
-
-export async function signIn (provider, options = {}, authorizationParams = {}) {
-  const {
-    callbackUrl = window.location,
-    redirect = true
-  } = options
-
-  const baseUrl = _apiBaseUrl()
-  const providers = await getProviders()
-
-  // Redirect to sign in page if no valid provider specified
-  if (!(provider in providers)) {
-    // If Provider not recognized, redirect to sign in page
-    window.location = `${baseUrl}/signin?callbackUrl=${encodeURIComponent(callbackUrl)}`
-    return
-  }
-  const isCredentials = providers[provider].type === 'credentials'
-  const isEmail = providers[provider].type === 'email'
-  const canRedirectBeDisabled = isCredentials || isEmail
-
-  const signInUrl = isCredentials
-    ? `${baseUrl}/callback/${provider}`
-    : `${baseUrl}/signin/${provider}`
-
-  // If is any other provider type, POST to provider URL with CSRF Token,
-  // callback URL and any other parameters supplied.
-  const fetchOptions = {
-    method: 'post',
-    headers: {
-      'Content-Type': 'application/x-www-form-urlencoded'
-    },
-    body: new URLSearchParams({
-      ...options,
-      csrfToken: await getCsrfToken(),
-      callbackUrl,
-      json: true
-    })
-  }
-  const _signInUrl = `${signInUrl}?${new URLSearchParams(authorizationParams)}`
-  const res = await fetch(_signInUrl, fetchOptions)
-  const data = await res.json()
-  if (redirect || !canRedirectBeDisabled) {
-    const url = data.url ?? callbackUrl
-    window.location = url
-    // If url contains a hash, the browser does not reload the page. We reload manually
-    if (url.includes('#')) window.location.reload()
-
-    return
-  }
-
-  const error = new URL(data.url).searchParams.get('error')
-
-  if (res.ok) {
-    await __NEXTAUTH._getSession({ event: 'storage' })
-  }
-
-  return {
-    error,
-    status: res.status,
-    ok: res.ok,
-    url: error ? null : data.url
-  }
-}
-
-export async function signOut (options = {}) {
-  const {
-    callbackUrl = window.location,
-    redirect = true
-  } = options
-  const baseUrl = _apiBaseUrl()
-  const fetchOptions = {
-    method: 'post',
-    headers: {
-      'Content-Type': 'application/x-www-form-urlencoded'
-    },
-    body: new URLSearchParams({
-      csrfToken: await getCsrfToken(),
-      callbackUrl,
-      json: true
-    })
-  }
-  const res = await fetch(`${baseUrl}/signout`, fetchOptions)
-  const data = await res.json()
-  broadcast.post({ event: 'session', data: { trigger: 'signout' } })
-  if (redirect) {
-    const url = data.url ?? callbackUrl
-    window.location = url
-    // If url contains a hash, the browser does not reload the page. We reload manually
-    if (url.includes('#')) window.location.reload()
-    return
-  }
-
-  await __NEXTAUTH._getSession({ event: 'storage' })
-
-  return data
-}
-
-// Method to set options. The documented way is to use the provider, but this
-// method is being left in as an alternative, that will be helpful if/when we
-// expose a vanilla JavaScript version that doesn't depend on React.
-export function setOptions ({ baseUrl, basePath, clientMaxAge, keepAlive } = {}) {
-  if (baseUrl) __NEXTAUTH.baseUrl = baseUrl
-  if (basePath) __NEXTAUTH.basePath = basePath
-  if (clientMaxAge) __NEXTAUTH.clientMaxAge = clientMaxAge
-  if (keepAlive) {
-    __NEXTAUTH.keepAlive = keepAlive
-    if (typeof window === 'undefined') return
-
-    // Clear existing timer (if there is one)
-    if (__NEXTAUTH._clientSyncTimer !== null) {
-      clearTimeout(__NEXTAUTH._clientSyncTimer)
-    }
-
-    // Set next timer to trigger in number of seconds
-    __NEXTAUTH._clientSyncTimer = setTimeout(async () => {
-      // Only invoke keepalive when a session exists
-      if (!__NEXTAUTH._clientSession) return
-      await __NEXTAUTH._getSession({ event: 'timer' })
-    }, keepAlive * 1000)
-  }
-}
-
-export function Provider ({ children, session, options }) {
-  setOptions(options)
-  return createElement(
-    SessionContext.Provider,
-    { value: useSession(session) },
-    children
-  )
-}
-
-/**
- * If passed 'appContext' via getInitialProps() in _app.js
- * then get the req object from ctx and use that for the
- * req value to allow _fetchData to
- * work seemlessly in getInitialProps() on server side
- * pages *and* in _app.js.
- */
-async function _fetchData (path, { ctx, req = ctx?.req } = {}) {
-  try {
-    const baseUrl = await _apiBaseUrl()
-    const options = req ? { headers: { cookie: req.headers.cookie } } : {}
-    const res = await fetch(`${baseUrl}/${path}`, options)
-    const data = await res.json()
-    return Object.keys(data).length > 0 ? data : null // Return null if data empty
-  } catch (error) {
-    logger.error('CLIENT_FETCH_ERROR', path, error)
-    return null
-  }
-}
-
-function _apiBaseUrl () {
-  if (typeof window === 'undefined') {
-    // NEXTAUTH_URL should always be set explicitly to support server side calls - log warning if not set
-    if (!process.env.NEXTAUTH_URL) {
-      logger.warn('NEXTAUTH_URL', 'NEXTAUTH_URL environment variable not set')
-    }
-
-    // Return absolute path when called server side
-    return `${__NEXTAUTH.baseUrlServer}${__NEXTAUTH.basePathServer}`
-  }
-  // Return relative path when called client side
-  return __NEXTAUTH.basePath
-}
-
-/** Returns the number of seconds elapsed since January 1, 1970 00:00:00 UTC. */
-function _now () {
-  return Math.floor(Date.now() / 1000)
-}
-
-/**
- * Inspired by [Broadcast Channel API](https://developer.mozilla.org/en-US/docs/Web/API/Broadcast_Channel_API)
- * Only not using it directly, because Safari does not support it.
- *
- * https://caniuse.com/?search=broadcastchannel
- */
-function BroadcastChannel (name = 'nextauth.message') {
-  return {
-    /**
-     * Get notified by other tabs/windows.
-     * @param {(message: import("types/internals/client").BroadcastMessage) => void} onReceive
-     */
-    receive (onReceive) {
-      if (typeof window === 'undefined') return
-      window.addEventListener('storage', async (event) => {
-        if (event.key !== name) return
-        /** @type {import("types/internals/client").BroadcastMessage} */
-        const message = JSON.parse(event.newValue)
-        if (message?.event !== 'session' || !message?.data) return
-
-        onReceive(message)
-      })
-    },
-    /** Notify other tabs/windows. */
-    post (message) {
-      if (typeof localStorage === 'undefined') return
-      localStorage.setItem(name,
-        JSON.stringify({ ...message, timestamp: _now() })
-      )
-    }
-  }
-}
-
-export default {
-  getSession,
-  getCsrfToken,
-  getProviders,
-  useSession,
-  signIn,
-  signOut,
-  Provider,
-  /* Deprecated / unsupported features below this line */
-  // Use setOptions() set options globally in the app.
-  setOptions,
-  // Some methods are exported with more than one name. This provides some
-  // flexibility over how they can be invoked and backwards compatibility
-  // with earlier releases.
-  options: setOptions,
-  session: getSession,
-  providers: getProviders,
-  csrfToken: getCsrfToken,
-  signin: signIn,
-  signout: signOut
-}

src/core/errors.ts

@@ -0,0 +1,118 @@
+import type { EventCallbacks, LoggerInstance } from ".."
+import type { Adapter } from "../adapters"
+
+/**
+ * Same as the default `Error`, but it is JSON serializable.
+ * @source https://iaincollins.medium.com/error-handling-in-javascript-a6172ccdf9af
+ */
+export class UnknownError extends Error {
+  code: string
+  constructor(error: Error | string) {
+    // Support passing error or string
+    super((error as Error)?.message ?? error)
+    this.name = "UnknownError"
+    this.code = (error as any).code
+    if (error instanceof Error) {
+      this.stack = error.stack
+    }
+  }
+
+  toJSON() {
+    return {
+      name: this.name,
+      message: this.message,
+      stack: this.stack,
+    }
+  }
+}
+
+export class OAuthCallbackError extends UnknownError {
+  name = "OAuthCallbackError"
+}
+
+/**
+ * Thrown when an Email address is already associated with an account
+ * but the user is trying an OAuth account that is not linked to it.
+ */
+export class AccountNotLinkedError extends UnknownError {
+  name = "AccountNotLinkedError"
+}
+
+export class MissingAPIRoute extends UnknownError {
+  name = "MissingAPIRouteError"
+  code = "MISSING_NEXTAUTH_API_ROUTE_ERROR"
+}
+
+export class MissingSecret extends UnknownError {
+  name = "MissingSecretError"
+  code = "NO_SECRET"
+}
+
+export class MissingAuthorize extends UnknownError {
+  name = "MissingAuthorizeError"
+  code = "CALLBACK_CREDENTIALS_HANDLER_ERROR"
+}
+
+export class MissingAdapter extends UnknownError {
+  name = "MissingAdapterError"
+  code = "EMAIL_REQUIRES_ADAPTER_ERROR"
+}
+
+export class UnsupportedStrategy extends UnknownError {
+  name = "UnsupportedStrategyError"
+  code = "CALLBACK_CREDENTIALS_JWT_ERROR"
+}
+
+type Method = (...args: any[]) => Promise<any>
+
+export function upperSnake(s: string) {
+  return s.replace(/([A-Z])/g, "_$1").toUpperCase()
+}
+
+export function capitalize(s: string) {
+  return `${s[0].toUpperCase()}${s.slice(1)}`
+}
+
+/**
+ * Wraps an object of methods and adds error handling.
+ */
+export function eventsErrorHandler(
+  methods: Partial<EventCallbacks>,
+  logger: LoggerInstance
+): Partial<EventCallbacks> {
+  return Object.keys(methods).reduce<any>((acc, name) => {
+    acc[name] = async (...args: any[]) => {
+      try {
+        const method: Method = methods[name as keyof Method]
+        return await method(...args)
+      } catch (e) {
+        logger.error(`${upperSnake(name)}_EVENT_ERROR`, e as Error)
+      }
+    }
+    return acc
+  }, {})
+}
+
+/** Handles adapter induced errors. */
+export function adapterErrorHandler(
+  adapter: Adapter | undefined,
+  logger: LoggerInstance
+): Adapter | undefined {
+  if (!adapter) return
+
+  return Object.keys(adapter).reduce<any>((acc, name) => {
+    acc[name] = async (...args: any[]) => {
+      try {
+        logger.debug(`adapter_${name}`, { args })
+        const method: Method = adapter[name as keyof Method]
+        return await method(...args)
+      } catch (error) {
+        logger.error(`adapter_error_${name}`, error as Error)
+        const e = new UnknownError(error as Error)
+        e.name = `${capitalize(name)}Error`
+        throw e
+      }
+    }
+    return acc
+  }, {})
+}

src/core/index.ts

@@ -0,0 +1,233 @@
+import logger, { setLogger } from "../lib/logger"
+import * as routes from "./routes"
+import renderPage from "./pages"
+import { init } from "./init"
+import { assertConfig } from "./lib/assert"
+import { SessionStore } from "./lib/cookie"
+
+import type { NextAuthOptions } from "./types"
+import type { NextAuthAction } from "../lib/types"
+import type { Cookie } from "./lib/cookie"
+import type { ErrorType } from "./pages/error"
+
+export interface IncomingRequest {
+  /** @default "http://localhost:3000" */
+  host: string
+  method?: string
+  cookies?: Record<string, string>
+  headers?: Record<string, any>
+  query?: Record<string, any>
+  body?: Record<string, any>
+  action: NextAuthAction
+  providerId?: string
+  error?: string
+}
+
+export interface NextAuthHeader {
+  key: string
+  value: string
+}
+
+export interface OutgoingResponse<
+  Body extends string | Record<string, any> | any[] = any
+> {
+  status?: number
+  headers?: NextAuthHeader[]
+  body?: Body
+  redirect?: string
+  cookies?: Cookie[]
+}
+
+export interface NextAuthHandlerParams {
+  req: IncomingRequest
+  options: NextAuthOptions
+}
+
+export async function NextAuthHandler<
+  Body extends string | Record<string, any> | any[]
+>(params: NextAuthHandlerParams): Promise<OutgoingResponse<Body>> {
+  const { options: userOptions, req } = params
+
+  setLogger(userOptions.logger, userOptions.debug)
+
+  const assertionResult = assertConfig(params)
+
+  if (typeof assertionResult === "string") {
+    logger.warn(assertionResult)
+  } else if (assertionResult instanceof Error) {
+    // Bail out early if there's an error in the user config
+    const { pages, theme } = userOptions
+    logger.error(assertionResult.code, assertionResult)
+    if (pages?.error) {
+      return {
+        redirect: `${pages.error}?error=Configuration`,
+      }
+    }
+    const render = renderPage({ theme })
+    return render.error({ error: "configuration" })
+  }
+
+  const { action, providerId, error, method = "GET" } = req
+
+  const { options, cookies } = await init({
+    userOptions,
+    action,
+    providerId,
+    host: req.host,
+    callbackUrl: req.body?.callbackUrl ?? req.query?.callbackUrl,
+    csrfToken: req.body?.csrfToken,
+    cookies: req.cookies,
+    isPost: method === "POST",
+  })
+
+  const sessionStore = new SessionStore(
+    options.cookies.sessionToken,
+    req,
+    options.logger
+  )
+
+  if (method === "GET") {
+    const render = renderPage({ ...options, query: req.query, cookies })
+    const { pages } = options
+    switch (action) {
+      case "providers":
+        return (await routes.providers(options.providers)) as any
+      case "session":
+        return (await routes.session({ options, sessionStore })) as any
+      case "csrf":
+        return {
+          headers: [{ key: "Content-Type", value: "application/json" }],
+          body: { csrfToken: options.csrfToken } as any,
+          cookies,
+        }
+      case "signin":
+        if (pages.signIn) {
+          let signinUrl = `${pages.signIn}${
+            pages.signIn.includes("?") ? "&" : "?"
+          }callbackUrl=${options.callbackUrl}`
+          if (error) signinUrl = `${signinUrl}&error=${error}`
+          return { redirect: signinUrl, cookies }
+        }
+
+        return render.signin()
+      case "signout":
+        if (pages.signOut) return { redirect: pages.signOut, cookies }
+
+        return render.signout()
+      case "callback":
+        if (options.provider) {
+          const callback = await routes.callback({
+            body: req.body,
+            query: req.query,
+            headers: req.headers,
+            cookies: req.cookies,
+            method,
+            options,
+            sessionStore,
+          })
+          if (callback.cookies) cookies.push(...callback.cookies)
+          return { ...callback, cookies }
+        }
+        break
+      case "verify-request":
+        if (pages.verifyRequest) {
+          return { redirect: pages.verifyRequest, cookies }
+        }
+        return render.verifyRequest()
+      case "error":
+        if (pages.error) {
+          return {
+            redirect: `${pages.error}${
+              pages.error.includes("?") ? "&" : "?"
+            }error=${error}`,
+            cookies,
+          }
+        }
+
+        // These error messages are displayed in line on the sign in page
+        if (
+          [
+            "Signin",
+            "OAuthSignin",
+            "OAuthCallback",
+            "OAuthCreateAccount",
+            "EmailCreateAccount",
+            "Callback",
+            "OAuthAccountNotLinked",
+            "EmailSignin",
+            "CredentialsSignin",
+            "SessionRequired",
+          ].includes(error as string)
+        ) {
+          return { redirect: `${options.url}/signin?error=${error}`, cookies }
+        }
+
+        return render.error({ error: error as ErrorType })
+      default:
+    }
+  } else if (method === "POST") {
+    switch (action) {
+      case "signin":
+        // Verified CSRF Token required for all sign in routes
+        if (options.csrfTokenVerified && options.provider) {
+          const signin = await routes.signin({
+            query: req.query,
+            body: req.body,
+            options,
+          })
+          if (signin.cookies) cookies.push(...signin.cookies)
+          return { ...signin, cookies }
+        }
+
+        return { redirect: `${options.url}/signin?csrf=true`, cookies }
+      case "signout":
+        // Verified CSRF Token required for signout
+        if (options.csrfTokenVerified) {
+          const signout = await routes.signout({ options, sessionStore })
+          if (signout.cookies) cookies.push(...signout.cookies)
+          return { ...signout, cookies }
+        }
+        return { redirect: `${options.url}/signout?csrf=true`, cookies }
+      case "callback":
+        if (options.provider) {
+          // Verified CSRF Token required for credentials providers only
+          if (
+            options.provider.type === "credentials" &&
+            !options.csrfTokenVerified
+          ) {
+            return { redirect: `${options.url}/signin?csrf=true`, cookies }
+          }
+
+          const callback = await routes.callback({
+            body: req.body,
+            query: req.query,
+            headers: req.headers,
+            cookies: req.cookies,
+            method,
+            options,
+            sessionStore,
+          })
+          if (callback.cookies) cookies.push(...callback.cookies)
+          return { ...callback, cookies }
+        }
+        break
+      case "_log":
+        if (userOptions.logger) {
+          try {
+            const { code, level, ...metadata } = req.body ?? {}
+            logger[level](code, metadata)
+          } catch (error) {
+            // If logging itself failed...
+            logger.error("LOGGER_ERROR", error as Error)
+          }
+        }
+        return {}
+      default:
+    }
+  }
+
+  return {
+    status: 400,
+    body: `Error: Action ${action} with HTTP ${method} is not supported by NextAuth.js` as any,
+  }
+}

src/core/init.ts

@@ -0,0 +1,147 @@
+import { NextAuthOptions } from ".."
+import logger from "../lib/logger"
+import parseUrl from "../lib/parse-url"
+import { InternalOptions } from "../lib/types"
+import { adapterErrorHandler, eventsErrorHandler } from "./errors"
+import parseProviders from "./lib/providers"
+import createSecret from "./lib/utils"
+import * as cookie from "./lib/cookie"
+import * as jwt from "../jwt"
+import { defaultCallbacks } from "./lib/default-callbacks"
+import { createCSRFToken } from "./lib/csrf-token"
+import { createCallbackUrl } from "./lib/callback-url"
+import { IncomingRequest } from "."
+
+interface InitParams {
+  host?: string
+  userOptions: NextAuthOptions
+  providerId?: string
+  action: InternalOptions["action"]
+  /** Callback URL value extracted from the incoming request. */
+  callbackUrl?: string
+  /** CSRF token value extracted from the incoming request. From body if POST, from query if GET */
+  csrfToken?: string
+  /** Is the incoming request a POST request? */
+  isPost: boolean
+  cookies: IncomingRequest["cookies"]
+}
+
+/** Initialize all internal options and cookies. */
+export async function init({
+  userOptions,
+  providerId,
+  action,
+  host,
+  cookies: reqCookies,
+  callbackUrl: reqCallbackUrl,
+  csrfToken: reqCsrfToken,
+  isPost,
+}: InitParams): Promise<{
+  options: InternalOptions
+  cookies: cookie.Cookie[]
+}> {
+  const url = parseUrl(host)
+
+  const secret = createSecret({ userOptions, url })
+
+  const { providers, provider } = parseProviders({
+    providers: userOptions.providers,
+    url,
+    providerId,
+  })
+
+  const maxAge = 30 * 24 * 60 * 60 // Sessions expire after 30 days of being idle by default
+
+  // User provided options are overriden by other options,
+  // except for the options with special handling above
+  const options: InternalOptions = {
+    debug: false,
+    pages: {},
+    theme: {
+      colorScheme: "auto",
+      logo: "",
+      brandColor: "",
+    },
+    // Custom options override defaults
+    ...userOptions,
+    // These computed settings can have values in userOptions but we override them
+    // and are request-specific.
+    url,
+    action,
+    provider,
+    cookies: {
+      ...cookie.defaultCookies(
+        userOptions.useSecureCookies ?? url.base.startsWith("https://")
+      ),
+      // Allow user cookie options to override any cookie settings above
+      ...userOptions.cookies,
+    },
+    secret,
+    providers,
+    // Session options
+    session: {
+      // If no adapter specified, force use of JSON Web Tokens (stateless)
+      strategy: userOptions.adapter ? "database" : "jwt",
+      maxAge,
+      updateAge: 24 * 60 * 60,
+      ...userOptions.session,
+    },
+    // JWT options
+    jwt: {
+      secret, // Use application secret if no keys specified
+      maxAge, // same as session maxAge,
+      encode: jwt.encode,
+      decode: jwt.decode,
+      ...userOptions.jwt,
+    },
+    // Event messages
+    events: eventsErrorHandler(userOptions.events ?? {}, logger),
+    adapter: adapterErrorHandler(userOptions.adapter, logger),
+    // Callback functions
+    callbacks: { ...defaultCallbacks, ...userOptions.callbacks },
+    logger,
+    callbackUrl: process.env.NEXTAUTH_URL ?? "http://localhost:3000",
+  }
+
+  // Init cookies
+
+  const cookies: cookie.Cookie[] = []
+
+  const {
+    csrfToken,
+    cookie: csrfCookie,
+    csrfTokenVerified,
+  } = createCSRFToken({
+    options,
+    cookieValue: reqCookies?.[options.cookies.csrfToken.name],
+    isPost,
+    bodyValue: reqCsrfToken,
+  })
+
+  options.csrfToken = csrfToken
+  options.csrfTokenVerified = csrfTokenVerified
+
+  if (csrfCookie) {
+    cookies.push({
+      name: options.cookies.csrfToken.name,
+      value: csrfCookie,
+      options: options.cookies.csrfToken.options,
+    })
+  }
+
+  const { callbackUrl, callbackUrlCookie } = await createCallbackUrl({
+    options,
+    cookieValue: reqCookies?.[options.cookies.callbackUrl.name],
+    paramValue: reqCallbackUrl,
+  })
+  options.callbackUrl = callbackUrl
+  if (callbackUrlCookie) {
+    cookies.push({
+      name: options.cookies.callbackUrl.name,
+      value: callbackUrlCookie,
+      options: options.cookies.callbackUrl.options,
+    })
+  }
+
+  return { options, cookies }
+}

src/core/lib/assert.ts

@@ -0,0 +1,78 @@
+import {
+  MissingAdapter,
+  MissingAPIRoute,
+  MissingAuthorize,
+  MissingSecret,
+  UnsupportedStrategy,
+} from "../errors"
+
+import type { NextAuthHandlerParams } from ".."
+import type { WarningCode } from "../../lib/logger"
+
+type ConfigError =
+  | MissingAPIRoute
+  | MissingSecret
+  | UnsupportedStrategy
+  | MissingAuthorize
+  | MissingAdapter
+
+/**
+ * Verify that the user configured `next-auth` correctly.
+ * Good place to mention deprecations as well.
+ *
+ * REVIEW: Make some of these and corresponding docs less Next.js specific?
+ */
+export function assertConfig(
+  params: NextAuthHandlerParams
+): ConfigError | WarningCode | undefined {
+  const { options, req } = params
+
+  // req.query isn't defined when asserting `getServerSession` for example
+  if (!req.query?.nextauth && !req.action) {
+    return new MissingAPIRoute(
+      "Cannot find [...nextauth].{js,ts} in `/pages/api/auth`. Make sure the filename is written correctly."
+    )
+  }
+
+  if (!options.secret) {
+    if (process.env.NODE_ENV === "production") {
+      return new MissingSecret("Please define a `secret` in production.")
+    } else {
+      return "NO_SECRET"
+    }
+  }
+
+  if (!req.host) return "NEXTAUTH_URL"
+
+  let hasCredentials, hasEmail
+
+  options.providers.forEach(({ type }) => {
+    if (type === "credentials") hasCredentials = true
+    else if (type === "email") hasEmail = true
+  })
+
+  if (hasCredentials) {
+    const dbStrategy = options.session?.strategy === "database"
+    const onlyCredentials = !options.providers.some(
+      (p) => p.type !== "credentials"
+    )
+    if (dbStrategy && onlyCredentials) {
+      return new UnsupportedStrategy(
+        "Signin in with credentials only supported if JWT strategy is enabled"
+      )
+    }
+
+    const credentialsNoAuthorize = options.providers.some(
+      (p) => p.type === "credentials" && !p.authorize
+    )
+    if (credentialsNoAuthorize) {
+      return new MissingAuthorize(
+        "Must define an authorize() handler to use credentials authentication provider"
+      )
+    }
+  }
+
+  if (hasEmail && !options.adapter) {
+    return new MissingAdapter("E-mail login requires an adapter.")
+  }
+}

src/core/lib/callback-handler.ts

@@ -1,5 +1,11 @@
-import { AccountNotLinkedError } from '../../lib/errors'
-import dispatchEvent from '../lib/dispatch-event'
+import { AccountNotLinkedError } from "../errors"
+import { fromDate } from "./utils"
+import { randomBytes, randomUUID } from "crypto"
+import { InternalOptions } from "../../lib/types"
+import { AdapterSession, AdapterUser } from "../../adapters"
+import { JWT } from "../../jwt"
+import { Account, User } from "../.."
+import { SessionToken } from "./cookie"
 
 /**
  * This function handles the complex flow of signing users in, and either creating,
@@ -13,152 +19,145 @@ import dispatchEvent from '../lib/dispatch-event'
  * done prior to this handler being called to avoid additonal complexity in this
  * handler.
  */
-export default async function callbackHandler (sessionToken, profile, providerAccount, options) {
+export default async function callbackHandler(params: {
+  sessionToken?: SessionToken
+  profile: User
+  account: Account
+  options: InternalOptions
+}) {
+  const { sessionToken, profile, account, options } = params
   // Input validation
-  if (!profile) throw new Error('Missing profile')
-  if (!providerAccount?.id || !providerAccount.type) throw new Error('Missing or invalid provider account')
-  if (!['email', 'oauth'].includes(providerAccount.type)) throw new Error('Provider not supported')
+  if (!account?.providerAccountId || !account.type)
+    throw new Error("Missing or invalid provider account")
+  if (!["email", "oauth"].includes(account.type))
+    throw new Error("Provider not supported")
 
   const {
     adapter,
     jwt,
     events,
-    session: {
-      jwt: useJwtSession
-    }
+    session: { strategy: sessionStrategy },
   } = options
 
   // If no adapter is configured then we don't have a database and cannot
   // persist data; in this mode we just return a dummy session object.
   if (!adapter) {
-    return {
-      user: profile,
-      account: providerAccount,
-      session: {}
-    }
+    return { user: profile, account, session: {} }
   }
 
   const {
     createUser,
     updateUser,
     getUser,
-    getUserByProviderAccountId,
+    getUserByAccount,
     getUserByEmail,
     linkAccount,
     createSession,
-    getSession,
-    deleteSession
-  } = await adapter.getAdapter(options)
+    getSessionAndUser,
+    deleteSession,
+  } = adapter
 
-  let session = null
-  let user = null
-  let isSignedIn = null
+  let session: AdapterSession | JWT | null = null
+  let user: AdapterUser | null = null
   let isNewUser = false
 
+  const useJwtSession = sessionStrategy === "jwt"
+
   if (sessionToken) {
     if (useJwtSession) {
       try {
         session = await jwt.decode({ ...jwt, token: sessionToken })
-        if (session?.sub) {
+        if (session && "sub" in session && session.sub) {
           user = await getUser(session.sub)
-          isSignedIn = !!user
         }
       } catch {
         // If session can't be verified, treat as no session
       }
-    }
-    session = await getSession(sessionToken)
-    if (session?.userId) {
-      user = await getUser(session.userId)
-      isSignedIn = !!user
+    } else {
+      const userAndSession = await getSessionAndUser(sessionToken)
+      if (userAndSession) {
+        session = userAndSession.session
+        user = userAndSession.user
+      }
     }
   }
 
-  if (providerAccount.type === 'email') {
+  if (account.type === "email") {
     // If signing in with an email, check if an account with the same email address exists already
-    const userByEmail = profile.email ? await getUserByEmail(profile.email) : null
+    const userByEmail = profile.email
+      ? await getUserByEmail(profile.email)
+      : null
     if (userByEmail) {
       // If they are not already signed in as the same user, this flow will
       // sign them out of the current session and sign them in as the new user
-      if (isSignedIn) {
-        if (user.id !== userByEmail.id && !useJwtSession) {
-          // Delete existing session if they are currently signed in as another user.
-          // This will switch user accounts for the session in cases where the user was
-          // already logged in with a different account.
-          await deleteSession(sessionToken)
-        }
+      if (user?.id !== userByEmail.id && !useJwtSession && sessionToken) {
+        // Delete existing session if they are currently signed in as another user.
+        // This will switch user accounts for the session in cases where the user was
+        // already logged in with a different account.
+        await deleteSession(sessionToken)
       }
 
       // Update emailVerified property on the user object
-      const currentDate = new Date()
-      user = await updateUser({ ...userByEmail, emailVerified: currentDate })
-      await dispatchEvent(events.updateUser, user)
+      user = await updateUser({ id: userByEmail.id, emailVerified: new Date() })
+      await events.updateUser?.({ user })
     } else {
+      const newUser = { ...profile, emailVerified: new Date() }
+      delete (newUser as Omit<AdapterUser, "id">).id
       // Create user account if there isn't one for the email address already
-      const currentDate = new Date()
-      user = await createUser({ ...profile, emailVerified: currentDate })
-      await dispatchEvent(events.createUser, user)
+      user = await createUser(newUser)
+      await events.createUser?.({ user })
       isNewUser = true
     }
 
     // Create new session
-    session = useJwtSession ? {} : await createSession(user)
+    session = useJwtSession
+      ? {}
+      : await createSession({
+          sessionToken: generateSessionToken(),
+          userId: user.id,
+          expires: fromDate(options.session.maxAge),
+        })
 
-    return {
-      session,
-      user,
-      isNewUser
-    }
-  } else if (providerAccount.type === 'oauth') {
-    // If signing in with oauth account, check to see if the account exists already
-    const userByProviderAccountId = await getUserByProviderAccountId(providerAccount.provider, providerAccount.id)
-    if (userByProviderAccountId) {
-      if (isSignedIn) {
+    return { session, user, isNewUser }
+  } else if (account.type === "oauth") {
+    // If signing in with OAuth account, check to see if the account exists already
+    const userByAccount = await getUserByAccount({
+      providerAccountId: account.providerAccountId,
+      provider: account.provider,
+    })
+    if (userByAccount) {
+      if (user) {
         // If the user is already signed in with this account, we don't need to do anything
-        // Note: These are cast as strings here to ensure they match as in
-        // some flows (e.g. JWT with a database) one of the values might be a
-        // string and the other might be an ObjectID and would otherwise fail.
-        if (`${userByProviderAccountId.id}` === `${user.id}`) {
-          return {
-            session,
-            user,
-            isNewUser
-          }
+        if (userByAccount.id === user.id) {
+          return { session, user, isNewUser }
         }
         // If the user is currently signed in, but the new account they are signing in
-        // with is already associated with another account, then we cannot link them
+        // with is already associated with another user, then we cannot link them
         // and need to return an error.
-        throw new AccountNotLinkedError()
+        throw new AccountNotLinkedError(
+          "The account is already associated with another user"
+        )
       }
       // If there is no active session, but the account being signed in with is already
       // associated with a valid user then create session to sign the user in.
-      session = useJwtSession ? {} : await createSession(userByProviderAccountId)
-      return {
-        session,
-        user: userByProviderAccountId,
-        isNewUser
-      }
+      session = useJwtSession
+        ? {}
+        : await createSession({
+            sessionToken: generateSessionToken(),
+            userId: userByAccount.id,
+            expires: fromDate(options.session.maxAge),
+          })
+
+      return { session, user: userByAccount, isNewUser }
     } else {
-      if (isSignedIn) {
+      if (user) {
         // If the user is already signed in and the OAuth account isn't already associated
         // with another user account then we can go ahead and link the accounts safely.
-        await linkAccount(
-          user.id,
-          providerAccount.provider,
-          providerAccount.type,
-          providerAccount.id,
-          providerAccount.refreshToken,
-          providerAccount.accessToken,
-          providerAccount.accessTokenExpires
-        )
-        await dispatchEvent(events.linkAccount, { user, providerAccount: providerAccount })
+        await linkAccount({ ...account, userId: user.id })
+        await events.linkAccount?.({ user, account })
 
         // As they are already signed in, we don't need to do anything after linking them
-        return {
-          session,
-          user,
-          isNewUser
-        }
+        return { session, user, isNewUser }
       }
 
       // If the user is not signed in and it looks like a new OAuth account then we
@@ -178,7 +177,9 @@ export default async function callbackHandler (sessionToken, profile, providerAc
       //
       // OAuth providers should require email address verification to prevent this, but in
       // practice that is not always the case; this helps protect against that.
-      const userByEmail = profile.email ? await getUserByEmail(profile.email) : null
+      const userByEmail = profile.email
+        ? await getUserByEmail(profile.email)
+        : null
       if (userByEmail) {
         // We end up here when we don't have an account with the same [provider].id *BUT*
         // we do already have an account with the same email address as the one in the
@@ -187,7 +188,9 @@ export default async function callbackHandler (sessionToken, profile, providerAc
         // We don't want to have two accounts with the same email address, and we don't
         // want to link them in case it's not safe to do so, so instead we prompt the user
         // to sign in via email to verify their identity and then link the accounts.
-        throw new AccountNotLinkedError()
+        throw new AccountNotLinkedError(
+          "Another account already exists with the same e-mail address"
+        )
       }
       // If the current user is not logged in and the profile isn't linked to any user
       // accounts (by email or provider account id)...
@@ -195,27 +198,28 @@ export default async function callbackHandler (sessionToken, profile, providerAc
       // If no account matching the same [provider].id or .email exists, we can
       // create a new account for the user, link it to the OAuth acccount and
       // create a new session for them so they are signed in with it.
-      user = await createUser(profile)
-      await dispatchEvent(events.createUser, user)
+      const newUser = { ...profile, emailVerified: null }
+      delete (newUser as Omit<AdapterUser, "id">).id
+      user = await createUser(newUser)
+      await events.createUser?.({ user })
 
-      await linkAccount(
-        user.id,
-        providerAccount.provider,
-        providerAccount.type,
-        providerAccount.id,
-        providerAccount.refreshToken,
-        providerAccount.accessToken,
-        providerAccount.accessTokenExpires
-      )
-      await dispatchEvent(events.linkAccount, { user, providerAccount: providerAccount })
+      await linkAccount({ ...account, userId: user.id })
+      await events.linkAccount?.({ user, account })
 
-      session = useJwtSession ? {} : await createSession(user)
-      isNewUser = true
-      return {
-        session,
-        user,
-        isNewUser
-      }
+      session = useJwtSession
+        ? {}
+        : await createSession({
+            sessionToken: generateSessionToken(),
+            userId: user.id,
+            expires: fromDate(options.session.maxAge),
+          })
+
+      return { session, user, isNewUser: true }
     }
   }
 }
+
+function generateSessionToken() {
+  // Use `randomUUID` if available. (Node 15.6++)
+  return randomUUID?.() ?? randomBytes(32).toString("hex")
+}

src/core/lib/callback-url.ts

@@ -0,0 +1,42 @@
+import { InternalOptions } from "../../lib/types"
+
+interface CreateCallbackUrlParams {
+  options: InternalOptions
+  /** Try reading value from request body (POST) then from query param (GET) */
+  paramValue?: string
+  cookieValue?: string
+}
+
+/**
+ * Get callback URL based on query param / cookie + validation,
+ * and add it to `req.options.callbackUrl`.
+ */
+export async function createCallbackUrl({
+  options,
+  paramValue,
+  cookieValue,
+}: CreateCallbackUrlParams) {
+  const { url, callbacks } = options
+
+  let callbackUrl = url.origin
+
+  if (paramValue) {
+    // If callbackUrl form field or query parameter is passed try to use it if allowed
+    callbackUrl = await callbacks.redirect({
+      url: paramValue,
+      baseUrl: url.origin,
+    })
+  } else if (cookieValue) {
+    // If no callbackUrl specified, try using the value from the cookie if allowed
+    callbackUrl = await callbacks.redirect({
+      url: cookieValue,
+      baseUrl: url.origin,
+    })
+  }
+
+  return {
+    callbackUrl,
+    // Save callback URL in a cookie so that it can be used for subsequent requests in signin/signout/callback flow
+    callbackUrlCookie: callbackUrl !== cookieValue ? callbackUrl : undefined,
+  }
+}

src/core/lib/cookie.ts

@@ -0,0 +1,212 @@
+import type { IncomingHttpHeaders } from "http"
+import type { CookiesOptions } from "../.."
+import type { CookieOption, LoggerInstance, SessionStrategy } from "../types"
+
+// Uncomment to recalculate the estimated size
+// of an empty session cookie
+// import { serialize } from "cookie"
+// console.log(
+//   "Cookie estimated to be ",
+//   serialize(`__Secure.next-auth.session-token.0`, "", {
+//     expires: new Date(),
+//     httpOnly: true,
+//     maxAge: Number.MAX_SAFE_INTEGER,
+//     path: "/",
+//     sameSite: "strict",
+//     secure: true,
+//     domain: "example.com",
+//   }).length,
+//   " bytes"
+// )
+
+const ALLOWED_COOKIE_SIZE = 4096
+// Based on commented out section above
+const ESTIMATED_EMPTY_COOKIE_SIZE = 163
+const CHUNK_SIZE = ALLOWED_COOKIE_SIZE - ESTIMATED_EMPTY_COOKIE_SIZE
+
+// REVIEW: Is there any way to defer two types of strings?
+
+/** Stringified form of `JWT`. Extract the content with `jwt.decode` */
+export type JWTString = string
+
+export type SetCookieOptions = Partial<CookieOption["options"]> & {
+  expires?: Date | string
+  encode?: (val: unknown) => string
+}
+
+/**
+ * If `options.session.strategy` is set to `jwt`, this is a stringified `JWT`.
+ * In case of `strategy: "database"`, this is the `sessionToken` of the session in the database.
+ */
+export type SessionToken<T extends SessionStrategy = "jwt"> = T extends "jwt"
+  ? JWTString
+  : string
+
+/**
+ * Use secure cookies if the site uses HTTPS
+ * This being conditional allows cookies to work non-HTTPS development URLs
+ * Honour secure cookie option, which sets 'secure' and also adds '__Secure-'
+ * prefix, but enable them by default if the site URL is HTTPS; but not for
+ * non-HTTPS URLs like http://localhost which are used in development).
+ * For more on prefixes see https://googlechrome.github.io/samples/cookie-prefixes/
+ *
+ * @TODO Review cookie settings (names, options)
+ */
+export function defaultCookies(useSecureCookies: boolean): CookiesOptions {
+  const cookiePrefix = useSecureCookies ? "__Secure-" : ""
+  return {
+    // default cookie options
+    sessionToken: {
+      name: `${cookiePrefix}next-auth.session-token`,
+      options: {
+        httpOnly: true,
+        sameSite: "lax",
+        path: "/",
+        secure: useSecureCookies,
+      },
+    },
+    callbackUrl: {
+      name: `${cookiePrefix}next-auth.callback-url`,
+      options: {
+        sameSite: "lax",
+        path: "/",
+        secure: useSecureCookies,
+      },
+    },
+    csrfToken: {
+      // Default to __Host- for CSRF token for additional protection if using useSecureCookies
+      // NB: The `__Host-` prefix is stricter than the `__Secure-` prefix.
+      name: `${useSecureCookies ? "__Host-" : ""}next-auth.csrf-token`,
+      options: {
+        httpOnly: true,
+        sameSite: "lax",
+        path: "/",
+        secure: useSecureCookies,
+      },
+    },
+    pkceCodeVerifier: {
+      name: `${cookiePrefix}next-auth.pkce.code_verifier`,
+      options: {
+        httpOnly: true,
+        sameSite: "lax",
+        path: "/",
+        secure: useSecureCookies,
+      },
+    },
+    state: {
+      name: `${cookiePrefix}next-auth.state`,
+      options: {
+        httpOnly: true,
+        sameSite: "lax",
+        path: "/",
+        secure: useSecureCookies,
+      },
+    },
+  }
+}
+
+export interface Cookie extends CookieOption {
+  value: string
+}
+
+type Chunks = Record<string, string>
+
+export class SessionStore {
+  #chunks: Chunks = {}
+  #option: CookieOption
+  #logger: LoggerInstance | Console
+
+  constructor(
+    option: CookieOption,
+    req: {
+      cookies?: Record<string, string>
+      headers?: Record<string, string> | IncomingHttpHeaders
+    },
+    logger: LoggerInstance | Console
+  ) {
+    this.#logger = logger
+    this.#option = option
+
+    if (!req) return
+
+    for (const name in req.cookies) {
+      if (name.startsWith(option.name)) {
+        this.#chunks[name] = req.cookies[name]
+      }
+    }
+  }
+
+  get value() {
+    return Object.values(this.#chunks)?.join("")
+  }
+
+  /** Given a cookie, return a list of cookies, chunked to fit the allowed cookie size. */
+  #chunk(cookie: Cookie): Cookie[] {
+    const chunkCount = Math.ceil(cookie.value.length / CHUNK_SIZE)
+
+    if (chunkCount === 1) {
+      this.#chunks[cookie.name] = cookie.value
+      return [cookie]
+    }
+
+    const cookies: Cookie[] = []
+    for (let i = 0; i < chunkCount; i++) {
+      const name = `${cookie.name}.${i}`
+      const value = cookie.value.substr(i * CHUNK_SIZE, CHUNK_SIZE)
+      cookies.push({ ...cookie, name, value })
+      this.#chunks[name] = value
+    }
+
+    this.#logger.debug("CHUNKING_SESSION_COOKIE", {
+      message: `Session cookie exceeds allowed ${ALLOWED_COOKIE_SIZE} bytes.`,
+      emptyCookieSize: ESTIMATED_EMPTY_COOKIE_SIZE,
+      valueSize: cookie.value.length,
+      chunks: cookies.map((c) => c.value.length + ESTIMATED_EMPTY_COOKIE_SIZE),
+    })
+
+    return cookies
+  }
+
+  /** Returns cleaned cookie chunks. */
+  #clean(): Record<string, Cookie> {
+    const cleanedChunks: Record<string, Cookie> = {}
+    for (const name in this.#chunks) {
+      delete this.#chunks?.[name]
+      cleanedChunks[name] = {
+        name,
+        value: "",
+        options: { ...this.#option.options, maxAge: 0 },
+      }
+    }
+    return cleanedChunks
+  }
+
+  /**
+   * Given a cookie value, return new cookies, chunked, to fit the allowed cookie size.
+   * If the cookie has changed from chunked to unchunked or vice versa,
+   * it deletes the old cookies as well.
+   */
+  chunk(value: string, options: Partial<Cookie["options"]>): Cookie[] {
+    // Assume all cookies should be cleaned by default
+    const cookies: Record<string, Cookie> = this.#clean()
+
+    // Calculate new chunks
+    const chunked = this.#chunk({
+      name: this.#option.name,
+      value,
+      options: { ...this.#option.options, ...options },
+    })
+
+    // Update stored chunks / cookies
+    for (const chunk of chunked) {
+      cookies[chunk.name] = chunk
+    }
+
+    return Object.values(cookies)
+  }
+
+  /** Returns a list of cookies that should be cleaned. */
+  clean(): Cookie[] {
+    return Object.values(this.#clean())
+  }
+}

src/core/lib/csrf-token.ts

@@ -0,0 +1,54 @@
+import { createHash, randomBytes } from "crypto"
+import { InternalOptions } from "../../lib/types"
+
+interface CreateCSRFTokenParams {
+  options: InternalOptions
+  cookieValue?: string
+  isPost: boolean
+  bodyValue?: string
+}
+
+/**
+ * Ensure CSRF Token cookie is set for any subsequent requests.
+ * Used as part of the strategy for mitigation for CSRF tokens.
+ *
+ * Creates a cookie like 'next-auth.csrf-token' with the value 'token|hash',
+ * where 'token' is the CSRF token and 'hash' is a hash made of the token and
+ * the secret, and the two values are joined by a pipe '|'. By storing the
+ * value and the hash of the value (with the secret used as a salt) we can
+ * verify the cookie was set by the server and not by a malicous attacker.
+ *
+ * For more details, see the following OWASP links:
+ * https://cheatsheetseries.owasp.org/cheatsheets/Cross-Site_Request_Forgery_Prevention_Cheat_Sheet.html#double-submit-cookie
+ * https://owasp.org/www-chapter-london/assets/slides/David_Johansson-Double_Defeat_of_Double-Submit_Cookie.pdf
+ */
+export function createCSRFToken({
+  options,
+  cookieValue,
+  isPost,
+  bodyValue,
+}: CreateCSRFTokenParams) {
+  if (cookieValue) {
+    const [csrfToken, csrfTokenHash] = cookieValue.split("|")
+    const expectedCsrfTokenHash = createHash("sha256")
+      .update(`${csrfToken}${options.secret}`)
+      .digest("hex")
+    if (csrfTokenHash === expectedCsrfTokenHash) {
+      // If hash matches then we trust the CSRF token value
+      // If this is a POST request and the CSRF Token in the POST request matches
+      // the cookie we have already verified is the one we have set, then the token is verified!
+      const csrfTokenVerified = isPost && csrfToken === bodyValue
+
+      return { csrfTokenVerified, csrfToken }
+    }
+  }
+
+  // New CSRF token
+  const csrfToken = randomBytes(32).toString("hex")
+  const csrfTokenHash = createHash("sha256")
+    .update(`${csrfToken}${options.secret}`)
+    .digest("hex")
+  const cookie = `${csrfToken}|${csrfTokenHash}`
+
+  return { cookie, csrfToken }
+}

src/core/lib/default-callbacks.ts

@@ -0,0 +1,18 @@
+import { CallbacksOptions } from "../.."
+
+export const defaultCallbacks: CallbacksOptions = {
+  signIn() {
+    return true
+  },
+  redirect({ url, baseUrl }) {
+    if (url.startsWith(baseUrl)) return url
+    else if (url.startsWith("/")) return new URL(url, baseUrl).toString()
+    return baseUrl
+  },
+  session({ session }) {
+    return session
+  },
+  jwt({ token }) {
+    return token
+  },
+}

src/core/lib/email/signin.ts

@@ -0,0 +1,54 @@
+import { randomBytes } from "crypto"
+import { InternalOptions } from "../../../lib/types"
+import { hashToken } from "../utils"
+
+/**
+ * Starts an e-mail login flow, by generating a token,
+ * and sending it to the user's e-mail (with the help of a DB adapter)
+ */
+export default async function email(
+  identifier: string,
+  options: InternalOptions<"email">
+) {
+  const { url, adapter, provider, logger, callbackUrl } = options
+
+  // Generate token
+  const token =
+    (await provider.generateVerificationToken?.()) ??
+    randomBytes(32).toString("hex")
+
+  const ONE_DAY_IN_SECONDS = 86400
+  const expires = new Date(
+    Date.now() + (provider.maxAge ?? ONE_DAY_IN_SECONDS) * 1000
+  )
+
+  // Save in database
+  // @ts-expect-error
+  await adapter.createVerificationToken({
+    identifier,
+    token: hashToken(token, options),
+    expires,
+  })
+
+  // Generate a link with email, unhashed token and callback url
+  const params = new URLSearchParams({ callbackUrl, token, email: identifier })
+  const _url = `${url}/callback/${provider.id}?${params}`
+
+  try {
+    // Send to user
+    await provider.sendVerificationRequest({
+      identifier,
+      token,
+      expires,
+      url: _url,
+      provider,
+    })
+  } catch (error) {
+    logger.error("SEND_VERIFICATION_EMAIL_ERROR", {
+      identifier,
+      url,
+      error: error as Error,
+    })
+    throw new Error("SEND_VERIFICATION_EMAIL_ERROR")
+  }
+}

src/core/lib/oauth/authorization-url.ts

@@ -0,0 +1,79 @@
+import { openidClient } from "./client"
+import { oAuth1Client } from "./client-legacy"
+import { createState } from "./state-handler"
+import { createPKCE } from "./pkce-handler"
+
+import type { AuthorizationParameters } from "openid-client"
+import type { InternalOptions } from "../../../lib/types"
+import type { IncomingRequest } from "../.."
+import type { Cookie } from "../cookie"
+
+/**
+ *
+ * Generates an authorization/request token URL.
+ *
+ * [OAuth 2](https://www.oauth.com/oauth2-servers/authorization/the-authorization-request/) | [OAuth 1](https://oauth.net/core/1.0a/#auth_step2)
+ */
+export default async function getAuthorizationUrl(params: {
+  options: InternalOptions<"oauth">
+  query: IncomingRequest["query"]
+}) {
+  const { options, query } = params
+  const { logger, provider } = options
+  try {
+    let params: any = {}
+
+    if (typeof provider.authorization === "string") {
+      const parsedUrl = new URL(provider.authorization)
+      const parsedParams = Object.fromEntries(parsedUrl.searchParams.entries())
+      params = { ...params, ...parsedParams }
+    } else {
+      params = { ...params, ...provider.authorization?.params }
+    }
+
+    params = { ...params, ...query }
+
+    // Handle OAuth v1.x
+    if (provider.version?.startsWith("1.")) {
+      const client = oAuth1Client(options)
+      const tokens = (await client.getOAuthRequestToken(params)) as any
+      const url = `${
+        // @ts-expect-error
+        provider.authorization?.url ?? provider.authorization
+      }?${new URLSearchParams({
+        oauth_token: tokens.oauth_token,
+        oauth_token_secret: tokens.oauth_token_secret,
+        ...tokens.params,
+      })}`
+
+      logger.debug("GET_AUTHORIZATION_URL", { url })
+      return { redirect: url }
+    }
+
+    const client = await openidClient(options)
+
+    const authorizationParams: AuthorizationParameters = params
+    const cookies: Cookie[] = []
+
+    const state = await createState(options)
+    if (state) {
+      authorizationParams.state = state.value
+      cookies.push(state.cookie)
+    }
+
+    const pkce = await createPKCE(options)
+    if (pkce) {
+      authorizationParams.code_challenge = pkce.code_challenge
+      authorizationParams.code_challenge_method = pkce.code_challenge_method
+      cookies.push(pkce.cookie)
+    }
+
+    const url = client.authorizationUrl(authorizationParams)
+
+    logger.debug("GET_AUTHORIZATION_URL", { url, cookies })
+    return { redirect: url, cookies }
+  } catch (error) {
+    logger.error("GET_AUTHORIZATION_URL_ERROR", error as Error)
+    throw error
+  }
+}

src/core/lib/oauth/callback.ts

@@ -0,0 +1,211 @@
+import { CallbackParamsType, TokenSet } from "openid-client"
+import { openidClient } from "./client"
+import { oAuth1Client } from "./client-legacy"
+import { useState } from "./state-handler"
+import { usePKCECodeVerifier } from "./pkce-handler"
+import { OAuthCallbackError } from "../../errors"
+
+import type { Account, LoggerInstance, Profile } from "../../.."
+import type { OAuthChecks, OAuthConfig } from "../../../providers"
+import type { InternalOptions } from "../../../lib/types"
+import type { IncomingRequest, OutgoingResponse } from "../.."
+import type { Cookie } from "../cookie"
+
+export default async function oAuthCallback(params: {
+  options: InternalOptions<"oauth">
+  query: IncomingRequest["query"]
+  body: IncomingRequest["body"]
+  method: Required<IncomingRequest>["method"]
+  cookies: IncomingRequest["cookies"]
+}): Promise<GetProfileResult & { cookies?: OutgoingResponse["cookies"] }> {
+  const { options, query, body, method, cookies } = params
+  const { logger, provider } = options
+
+  const errorMessage = body?.error ?? query?.error
+  if (errorMessage) {
+    const error = new Error(errorMessage)
+    logger.error("OAUTH_CALLBACK_HANDLER_ERROR", {
+      error,
+      error_description: query?.error_description,
+      body,
+      providerId: provider.id,
+    })
+    throw error
+  }
+
+  if (provider.version?.startsWith("1.")) {
+    try {
+      const client = await oAuth1Client(options)
+      // Handle OAuth v1.x
+      const { oauth_token, oauth_verifier } = query ?? {}
+      // @ts-expect-error
+      const tokens: TokenSet = await client.getOAuthAccessToken(
+        oauth_token as string,
+        // @ts-expect-error
+        null,
+        oauth_verifier
+      )
+      // @ts-expect-error
+      let profile: Profile = await client.get(
+        (provider as any).profileUrl,
+        tokens.oauth_token,
+        tokens.oauth_token_secret
+      )
+
+      if (typeof profile === "string") {
+        profile = JSON.parse(profile)
+      }
+
+      return await getProfile({ profile, tokens, provider, logger })
+    } catch (error) {
+      logger.error("OAUTH_V1_GET_ACCESS_TOKEN_ERROR", error as Error)
+      throw error
+    }
+  }
+
+  try {
+    const client = await openidClient(options)
+
+    let tokens: TokenSet
+
+    const checks: OAuthChecks = {}
+    const resCookies: Cookie[] = []
+
+    const state = await useState(cookies?.[options.cookies.state.name], options)
+
+    if (state) {
+      checks.state = state.value
+      resCookies.push(state.cookie)
+    }
+
+    const codeVerifier = cookies?.[options.cookies.pkceCodeVerifier.name]
+    const pkce = await usePKCECodeVerifier(codeVerifier, options)
+    if (pkce) {
+      checks.code_verifier = pkce.codeVerifier
+      resCookies.push(pkce.cookie)
+    }
+
+    const params: CallbackParamsType = {
+      ...client.callbackParams({
+        url: `http://n?${new URLSearchParams(query)}`,
+        // TODO: Ask to allow object to be passed upstream:
+        // https://github.com/panva/node-openid-client/blob/3ae206dfc78c02134aa87a07f693052c637cab84/types/index.d.ts#L439
+        // @ts-expect-error
+        body,
+        method,
+      }),
+      // @ts-expect-error
+      ...provider.token?.params,
+    }
+
+    // @ts-expect-error
+    if (provider.token?.request) {
+      // @ts-expect-error
+      const response = await provider.token.request({
+        provider,
+        params,
+        checks,
+        client,
+      })
+      tokens = new TokenSet(response.tokens)
+    } else if (provider.idToken) {
+      tokens = await client.callback(provider.callbackUrl, params, checks)
+    } else {
+      tokens = await client.oauthCallback(provider.callbackUrl, params, checks)
+    }
+
+    // REVIEW: How can scope be returned as an array?
+    if (Array.isArray(tokens.scope)) {
+      tokens.scope = tokens.scope.join(" ")
+    }
+
+    let profile: Profile
+    // @ts-expect-error
+    if (provider.userinfo?.request) {
+      // @ts-expect-error
+      profile = await provider.userinfo.request({
+        provider,
+        tokens,
+        client,
+      })
+    } else if (provider.idToken) {
+      profile = tokens.claims()
+    } else {
+      profile = await client.userinfo(tokens, {
+        // @ts-expect-error
+        params: provider.userinfo?.params,
+      })
+    }
+
+    const profileResult = await getProfile({
+      profile,
+      provider,
+      tokens,
+      logger,
+    })
+    return { ...profileResult, cookies: resCookies }
+  } catch (error) {
+    logger.error("OAUTH_CALLBACK_ERROR", {
+      error: error as Error,
+      providerId: provider.id,
+    })
+    throw new OAuthCallbackError(error as Error)
+  }
+}
+
+export interface GetProfileParams {
+  profile: Profile
+  tokens: TokenSet
+  provider: OAuthConfig<any>
+  logger: LoggerInstance
+}
+
+export interface GetProfileResult {
+  // @ts-expect-error
+  profile: ReturnType<OAuthConfig["profile"]> | null
+  account: Omit<Account, "userId"> | null
+  OAuthProfile: Profile
+}
+
+/** Returns profile, raw profile and auth provider details */
+async function getProfile({
+  profile: OAuthProfile,
+  tokens,
+  provider,
+  logger,
+}: GetProfileParams): Promise<GetProfileResult> {
+  try {
+    logger.debug("PROFILE_DATA", { OAuthProfile })
+    // @ts-expect-error
+    const profile = await provider.profile(OAuthProfile, tokens)
+    profile.email = profile.email?.toLowerCase()
+    // Return profile, raw profile and auth provider details
+    return {
+      profile,
+      account: {
+        provider: provider.id,
+        type: provider.type,
+        providerAccountId: profile.id.toString(),
+        ...tokens,
+      },
+      OAuthProfile,
+    }
+  } catch (error) {
+    // If we didn't get a response either there was a problem with the provider
+    // response *or* the user cancelled the action with the provider.
+    //
+    // Unfortuately, we can't tell which - at least not in a way that works for
+    // all providers, so we return an empty object; the user should then be
+    // redirected back to the sign up page. We log the error to help developers
+    // who might be trying to debug this when configuring a new provider.
+    logger.error("OAUTH_PARSE_PROFILE_ERROR", {
+      error: error as Error,
+      OAuthProfile,
+    })
+    return {
+      profile: null,
+      account: null,
+      OAuthProfile,
+    }
+  }
+}

src/core/lib/oauth/client-legacy.ts

@@ -0,0 +1,69 @@
+// This is kept around for being backwards compatible with OAuth 1.0 providers.
+// We have the intentions to provide only minor fixes for this in the future.
+
+import { OAuth } from "oauth"
+import { InternalOptions } from "src/lib/types"
+
+/**
+ * Client supporting OAuth 1.x
+ */
+export function oAuth1Client(options: InternalOptions<"oauth">) {
+  const provider = options.provider
+
+  const oauth1Client = new OAuth(
+    provider.requestTokenUrl as string,
+    provider.accessTokenUrl as string,
+    provider.clientId as string,
+    provider.clientSecret as string,
+    provider.version ?? "1.0",
+    provider.callbackUrl,
+    provider.encoding ?? "HMAC-SHA1"
+  )
+
+  // Promisify get()  for OAuth1
+  const originalGet = oauth1Client.get.bind(oauth1Client)
+  // @ts-expect-error
+  oauth1Client.get = async (...args) => {
+    return await new Promise((resolve, reject) => {
+      originalGet(...args, (error, result) => {
+        if (error) {
+          return reject(error)
+        }
+        resolve(result)
+      })
+    })
+  }
+  // Promisify getOAuth1AccessToken()  for OAuth1
+  const originalGetOAuth1AccessToken =
+    oauth1Client.getOAuthAccessToken.bind(oauth1Client)
+  oauth1Client.getOAuthAccessToken = async (...args: any[]) => {
+    return await new Promise((resolve, reject) => {
+      originalGetOAuth1AccessToken(
+        ...args,
+        (error: any, oauth_token: any, oauth_token_secret: any) => {
+          if (error) {
+            return reject(error)
+          }
+          resolve({ oauth_token, oauth_token_secret } as any)
+        }
+      )
+    })
+  }
+
+  const originalGetOAuthRequestToken =
+    oauth1Client.getOAuthRequestToken.bind(oauth1Client)
+  oauth1Client.getOAuthRequestToken = async (params = {}) => {
+    return await new Promise((resolve, reject) => {
+      originalGetOAuthRequestToken(
+        params,
+        (error, oauth_token, oauth_token_secret, params) => {
+          if (error) {
+            return reject(error)
+          }
+          resolve({ oauth_token, oauth_token_secret, params } as any)
+        }
+      )
+    })
+  }
+  return oauth1Client
+}