version v15.1

thirdparty/StreamSaver.js

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+/* global chrome location ReadableStream define MessageChannel TransformStream */
+// https://github.com/jimmywarting/StreamSaver.js
+// MIT License
+((e,t)=>{"undefined"!=typeof module?module.exports=t():"function"==typeof define&&"object"==typeof define.amd?define(t):this.streamSaver=t()})(0,()=>{"use strict";const e="object"==typeof window?window:this;e.HTMLElement||console.warn("streamsaver is meant to run on browsers main thread");let t=null,a=!1;const r=e.WebStreamsPolyfill||{},n=e.isSecureContext;let o=/constructor/i.test(e.HTMLElement)||!!e.safari||!!e.WebKitPoint;const s=n||"MozAppearance"in document.documentElement.style?"iframe":"navigate",i={createWriteStream:function(r,m,d){let c={size:null,pathname:null,writableStrategy:void 0,readableStrategy:void 0},p=0,f=null,u=null,w=null;Number.isFinite(m)?([d,m]=[m,d],console.warn("[StreamSaver] Depricated pass an object as 2nd argument when creating a write stream"),c.size=d,c.writableStrategy=m):m&&m.highWaterMark?(console.warn("[StreamSaver] Depricated pass an object as 2nd argument when creating a write stream"),c.size=d,c.writableStrategy=m):c=m||{};if(!o){t||(t=n?l(i.mitm):function(t){const a=document.createDocumentFragment(),r={frame:e.open(t,"popup","width=200,height=100"),loaded:!1,isIframe:!1,isPopup:!0,remove(){r.frame.close()},addEventListener(...e){a.addEventListener(...e)},dispatchEvent(...e){a.dispatchEvent(...e)},removeEventListener(...e){a.removeEventListener(...e)},postMessage(...e){r.frame.postMessage(...e)}},n=t=>{t.source===r.frame&&(r.loaded=!0,e.removeEventListener("message",n),r.dispatchEvent(new Event("load")))};return e.addEventListener("message",n),r}(i.mitm)),u=new MessageChannel,r=encodeURIComponent(r.replace(/\//g,":")).replace(/['()]/g,escape).replace(/\*/g,"%2A");const o={transferringReadable:a,pathname:c.pathname||Math.random().toString().slice(-6)+"/"+r,headers:{"Content-Type":"application/octet-stream; charset=utf-8","Content-Disposition":"attachment; filename*=UTF-8''"+r}};c.size&&(o.headers["Content-Length"]=c.size);const m=[o,"*",[u.port2]];if(a){const e="iframe"===s?void 0:{transform(e,t){if(!(e instanceof Uint8Array))throw new TypeError("Can only wirte Uint8Arrays");p+=e.length,t.enqueue(e),f&&(location.href=f,f=null)},flush(){f&&(location.href=f)}},t=(w=new i.TransformStream(e,c.writableStrategy,c.readableStrategy)).readable;u.port1.postMessage({readableStream:t},[t])}u.port1.onmessage=(e=>{e.data.download&&("navigate"===s?(t.remove(),t=null,p?location.href=e.data.download:f=e.data.download):(t.isPopup&&(t.remove(),t=null,"iframe"===s&&l(i.mitm)),l(e.data.download)))}),t.loaded?t.postMessage(...m):t.addEventListener("load",()=>{t.postMessage(...m)},{once:!0})}let g=[];return!o&&w&&w.writable||new i.WritableStream({write(e){if(!(e instanceof Uint8Array))throw new TypeError("Can only wirte Uint8Arrays");o?g.push(e):(u.port1.postMessage(e),p+=e.length,f&&(location.href=f,f=null))},close(){if(o){const e=new Blob(g,{type:"application/octet-stream; charset=utf-8"}),t=document.createElement("a");t.href=URL.createObjectURL(e),t.download=r,t.click()}else u.port1.postMessage("end")},abort(){g=[],u.port1.postMessage("abort"),u.port1.onmessage=null,u.port1.close(),u.port2.close(),u=null}},c.writableStrategy)},WritableStream:e.WritableStream||r.WritableStream,supported:!0,version:{full:"2.0.5",major:2,minor:0,dot:5},mitm:"./thirdparty/mitm.html?version=2.0.0"};function l(e){if(!e)throw new Error("meh");const t=document.createElement("iframe");return t.hidden=!0,t.src=e,t.loaded=!1,t.name="iframe",t.isIframe=!0,t.postMessage=((...e)=>t.contentWindow.postMessage(...e)),t.addEventListener("load",()=>{t.loaded=!0},{once:!0}),document.body.appendChild(t),t}try{new Response(new ReadableStream),!n||"serviceWorker"in navigator||(o=!0)}catch(e){o=!0}return(e=>{try{e()}catch(e){}})(()=>{const{readable:e}=new TransformStream,t=new MessageChannel;t.port1.postMessage(e,[e]),t.port1.close(),t.port2.close(),a=!0,Object.defineProperty(i,"TransformStream",{configurable:!1,writable:!1,value:TransformStream})}),i});

thirdparty/mitm.html

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+<!--
+https://github.com/jimmywarting/StreamSaver.js/blob/master/mitm.html
+// MIT License
+-->
+<script>
+let keepAlive=()=>{keepAlive=(()=>{});var e=location.href.substr(0,location.href.lastIndexOf("/"))+"/ping",a=setInterval(()=>{sw?sw.postMessage("ping"):fetch(e).then(e=>e.text(!e.ok&&clearInterval(a)))},1e4)},messages=[];window.onmessage=(e=>messages.push(e));let sw=null,scope="";function registerWorker(){return navigator.serviceWorker.getRegistration("./").then(e=>e||navigator.serviceWorker.register("sw.js",{scope:"./thirdparty/"})).then(e=>{const a=e.installing||e.waiting;return scope=e.scope,(sw=e.active)||new Promise(r=>{a.addEventListener("statechange",fn=(()=>{"activated"===a.state&&(a.removeEventListener("statechange",fn),sw=e.active,r())}))})})}function onMessage(e){let{data:a,ports:r,origin:t}=e;if(!r||!r.length)throw new TypeError("[StreamSaver] You didn't send a messageChannel");if("object"!=typeof a)throw new TypeError("[StreamSaver] You didn't send a object");a.origin=t,a.referrer=a.referrer||document.referrer||t,a.streamSaverVersion=new URLSearchParams(location.search).get("version"),"1.2.0"===a.streamSaverVersion&&console.warn("[StreamSaver] please update streamsaver"),a.headers?new Headers(a.headers):console.warn("[StreamSaver] pass `data.headers` that you would like to pass along to the service worker\nit should be a 2D array or a key/val object that fetch's Headers api accepts"),"string"==typeof a.filename&&(console.warn("[StreamSaver] You shouldn't send `data.filename` anymore. It should be included in the Content-Disposition header option"),a.filename=a.filename.replace(/\//g,":")),a.size&&console.warn("[StreamSaver] You shouldn't send `data.size` anymore. It should be included in the content-length header option"),a.readableStream&&console.warn("[StreamSaver] You should send the readableStream in the messageChannel, not throught mitm"),a.pathname||(console.warn("[StreamSaver] Please send `data.pathname` (eg: /pictures/summer.jpg)"),a.pathname=Math.random().toString().slice(-6)+"/"+a.filename),a.pathname=a.pathname.replace(/^\/+/g,"");let n=t.replace(/(^\w+:|^)\/\//,"");if(a.url=new URL(`${scope+n}/${a.pathname}`).toString(),!a.url.startsWith(`${scope+n}/`))throw new TypeError("[StreamSaver] bad `data.pathname`");const s=a.readableStream?[r[0],a.readableStream]:[r[0]];return a.readableStream||a.transferringReadable||keepAlive(),sw.postMessage(a,s)}window.opener&&window.opener.postMessage("StreamSaver::loadedPopup","*"),navigator.serviceWorker?registerWorker().then(()=>{window.onmessage=onMessage,messages.forEach(window.onmessage)}):keepAlive();
+</script>

thirdparty/sw.js

@@ -0,0 +1,4 @@
+/* global self ReadableStream Response */
+// https://github.com/jimmywarting/StreamSaver.js/blob/master/sw.js
+// MIT License
+self.addEventListener("install",()=>{self.skipWaiting()}),self.addEventListener("activate",e=>{e.waitUntil(self.clients.claim())});const map=new Map;function createStream(e){return new ReadableStream({start(t){e.onmessage=(({data:e})=>{if("end"===e)return t.close();"abort"!==e?t.enqueue(e):t.error("Aborted the download")})},cancel(){console.log("user aborted")}})}self.onmessage=(e=>{if("ping"===e.data)return;const t=e.data,n=t.url||self.registration.scope+Math.random()+"/"+("string"==typeof t?t:t.filename),a=e.ports[0],s=new Array(3);s[1]=t,s[2]=a,e.data.readableStream?s[0]=e.data.readableStream:e.data.transferringReadable?a.onmessage=(e=>{a.onmessage=null,s[0]=e.data.readableStream}):s[0]=createStream(a),map.set(n,s),a.postMessage({download:n})}),self.onfetch=(e=>{const t=e.request.url;if(t.endsWith("/ping"))return e.respondWith(new Response("pong"));const n=map.get(t);if(!n)return null;const[a,s,o]=n;map.delete(t);const r=new Headers({"Content-Type":"application/octet-stream; charset=utf-8","Content-Security-Policy":"default-src 'none'","X-Content-Security-Policy":"default-src 'none'","X-WebKit-CSP":"default-src 'none'","X-XSS-Protection":"1; mode=block"});let i=new Headers(s.headers||{});i.has("Content-Length")&&r.set("Content-Length",i.get("Content-Length")),i.has("Content-Disposition")&&r.set("Content-Disposition",i.get("Content-Disposition")),s.size&&(console.warn("Depricated"),r.set("Content-Length",s.size));let l="string"==typeof s?s:s.filename;l&&(console.warn("Depricated"),l=encodeURIComponent(l).replace(/['()]/g,escape).replace(/\*/g,"%2A"),r.set("Content-Disposition","attachment; filename*=UTF-8''"+l)),e.respondWith(new Response(a,{headers:r})),o.postMessage({debug:"Download started"})});