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use different signal than empty vec

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pull/2535/head
amrbashir 4 months ago
parent 68ca2eb38b
commit 346dbd6654
No known key found for this signature in database
3 changed files with 14 additions and 20 deletions
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2
plugins/http/api-iife.js
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@ -1 +1 @@
if("__TAURI__"in window){var __TAURI_PLUGIN_HTTP__=function(e){"use strict";function t(e,t,r,n){if("function"==typeof t||!t.has(e))throw new TypeError("Cannot read private member from an object whose class did not declare it");return"m"===r?n:"a"===r?n.call(e):n?n.value:t.get(e)}function r(e,t,r,n,s){if("function"==typeof t||!t.has(e))throw new TypeError("Cannot write private member to an object whose class did not declare it");return t.set(e,r),r}var n,s,i;"function"==typeof SuppressedError&&SuppressedError;const a="__TAURI_TO_IPC_KEY__";class o{constructor(){this.__TAURI_CHANNEL_MARKER__=!0,n.set(this,(()=>{})),s.set(this,0),i.set(this,[]),this.id=function(e,t=!1){return window.__TAURI_INTERNALS__.transformCallback(e,t)}((({message:e,id:a})=>{if(a==t(this,s,"f"))for(t(this,n,"f").call(this,e),r(this,s,t(this,s,"f")+1);t(this,s,"f")in t(this,i,"f");){const e=t(this,i,"f")[t(this,s,"f")];t(this,n,"f").call(this,e),delete t(this,i,"f")[t(this,s,"f")],r(this,s,t(this,s,"f")+1)}else t(this,i,"f")[a]=e}))}set onmessage(e){r(this,n,e)}get onmessage(){return t(this,n,"f")}[(n=new WeakMap,s=new WeakMap,i=new WeakMap,a)](){return`__CHANNEL__:${this.id}`}toJSON(){return this[a]()}}async function c(e,t={},r){return window.__TAURI_INTERNALS__.invoke(e,t,r)}const d="Request cancelled";return e.fetch=async function(e,t){const r=t?.signal;if(r?.aborted)throw new Error(d);const n=t?.maxRedirections,s=t?.connectTimeout,i=t?.proxy,a=t?.danger;t&&(delete t.maxRedirections,delete t.connectTimeout,delete t.proxy,delete t.danger);const f=t?.headers?t.headers instanceof Headers?t.headers:new Headers(t.headers):new Headers,h=new Request(e,t),u=await h.arrayBuffer(),_=0!==u.byteLength?Array.from(new Uint8Array(u)):null;for(const[e,t]of h.headers)f.get(e)||f.set(e,t);const l=(f instanceof Headers?Array.from(f.entries()):Array.isArray(f)?f:Object.entries(f)).map((([e,t])=>[e,"string"==typeof t?t:t.toString()]));if(r?.aborted)throw new Error(d);const w=await c("plugin:http|fetch",{clientConfig:{method:h.method,url:h.url,headers:l,data:_,maxRedirections:n,connectTimeout:s,proxy:i,danger:a}}),p=()=>c("plugin:http|fetch_cancel",{rid:w});if(r?.aborted)throw p(),new Error(d);r?.addEventListener("abort",(()=>{p()}));const{status:y,statusText:m,url:T,headers:g,rid:A}=await c("plugin:http|fetch_send",{rid:w}),R=new ReadableStream({start:e=>{let t=!1;const n=new o;n.onmessage=n=>{if(t)return;if(r?.aborted)return void e.error(d);if(0==(n instanceof ArrayBuffer?n.byteLength:n.length))return e.close(),void(t=!0);e.enqueue(new Uint8Array(n))},c("plugin:http|fetch_read_body",{rid:A,streamChannel:n}).catch((t=>{e.error(t)}))}}),b=new Response(R,{status:y,statusText:m});return Object.defineProperty(b,"url",{value:T}),Object.defineProperty(b,"headers",{value:new Headers(g)}),b},e}({});Object.defineProperty(window.__TAURI__,"http",{value:__TAURI_PLUGIN_HTTP__})}
if("__TAURI__"in window){var __TAURI_PLUGIN_HTTP__=function(e){"use strict";function t(e,t,r,n){if("function"==typeof t||!t.has(e))throw new TypeError("Cannot read private member from an object whose class did not declare it");return"m"===r?n:"a"===r?n.call(e):n?n.value:t.get(e)}function r(e,t,r,n,s){if("function"==typeof t||!t.has(e))throw new TypeError("Cannot write private member to an object whose class did not declare it");return t.set(e,r),r}var n,s,a;"function"==typeof SuppressedError&&SuppressedError;const i="__TAURI_TO_IPC_KEY__";class o{constructor(){this.__TAURI_CHANNEL_MARKER__=!0,n.set(this,(()=>{})),s.set(this,0),a.set(this,[]),this.id=function(e,t=!1){return window.__TAURI_INTERNALS__.transformCallback(e,t)}((({message:e,id:i})=>{if(i==t(this,s,"f"))for(t(this,n,"f").call(this,e),r(this,s,t(this,s,"f")+1);t(this,s,"f")in t(this,a,"f");){const e=t(this,a,"f")[t(this,s,"f")];t(this,n,"f").call(this,e),delete t(this,a,"f")[t(this,s,"f")],r(this,s,t(this,s,"f")+1)}else t(this,a,"f")[i]=e}))}set onmessage(e){r(this,n,e)}get onmessage(){return t(this,n,"f")}[(n=new WeakMap,s=new WeakMap,a=new WeakMap,i)](){return`__CHANNEL__:${this.id}`}toJSON(){return this[i]()}}async function c(e,t={},r){return window.__TAURI_INTERNALS__.invoke(e,t,r)}const d="Request cancelled";return e.fetch=async function(e,t){const r=t?.signal;if(r?.aborted)throw new Error(d);const n=t?.maxRedirections,s=t?.connectTimeout,a=t?.proxy,i=t?.danger;t&&(delete t.maxRedirections,delete t.connectTimeout,delete t.proxy,delete t.danger);const h=t?.headers?t.headers instanceof Headers?t.headers:new Headers(t.headers):new Headers,f=new Request(e,t),_=await f.arrayBuffer(),u=0!==_.byteLength?Array.from(new Uint8Array(_)):null;for(const[e,t]of f.headers)h.get(e)||h.set(e,t);const l=(h instanceof Headers?Array.from(h.entries()):Array.isArray(h)?h:Object.entries(h)).map((([e,t])=>[e,"string"==typeof t?t:t.toString()]));if(r?.aborted)throw new Error(d);const w=await c("plugin:http|fetch",{clientConfig:{method:f.method,url:f.url,headers:l,data:u,maxRedirections:n,connectTimeout:s,proxy:a,danger:i}}),p=()=>c("plugin:http|fetch_cancel",{rid:w});if(r?.aborted)throw p(),new Error(d);r?.addEventListener("abort",(()=>{p()}));const{status:y,statusText:m,url:T,headers:g,rid:b}=await c("plugin:http|fetch_send",{rid:w}),A=new ReadableStream({start:e=>{const t=new o;t.onmessage=t=>{if(r?.aborted)return void e.error(d);const n=new Uint8Array(t),s=n[n.byteLength-1],a=n.slice(0,n.byteLength-1);1!=s?e.enqueue(a):e.close()},c("plugin:http|fetch_read_body",{rid:b,streamChannel:t}).catch((t=>{e.error(t)}))}}),R=new Response(A,{status:y,statusText:m});return Object.defineProperty(R,"url",{value:T}),Object.defineProperty(R,"headers",{value:new Headers(g)}),R},e}({});Object.defineProperty(window.__TAURI__,"http",{value:__TAURI_PLUGIN_HTTP__})}

23
plugins/http/guest-js/index.ts
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@ -231,34 +231,25 @@ export async function fetch(
const readableStreamBody = new ReadableStream({
start: (controller) => {
let alreadyClosed = false
const streamChannel = new Channel<ArrayBuffer | number[]>()
streamChannel.onmessage = (res: ArrayBuffer | number[]) => {
// return early if already closed
if (alreadyClosed) {
return
}
// close early if aborted
if (signal?.aborted) {
controller.error(ERROR_REQUEST_CANCELLED)
return
}
// close when the signal to close (an empty chunk)
// is sent from the IPC.
const len = res instanceof ArrayBuffer ? res.byteLength : res.length
if (len == 0) {
const resUint8 = new Uint8Array(res)
const lastByte = resUint8[resUint8.byteLength - 1]
const actualRes = resUint8.slice(0, resUint8.byteLength - 1)
// close when the signal to close (last byte is 1) is sent from the IPC.
if (lastByte == 1) {
controller.close()
alreadyClosed = true
return
}
// the content conversion (like .text(), .json(), etc.) in Response
// must have Uint8Array as its content, else it will
// have untraceable error that's hard to debug.
controller.enqueue(new Uint8Array(res))
controller.enqueue(actualRes)
}
// run a non-blocking body stream fetch

9
plugins/http/src/commands.rs
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@ -426,11 +426,14 @@ pub async fn fetch_read_body<R: Runtime>(
// send response through IPC channel
while let Some(chunk) = res.chunk().await? {
stream_channel.send(tauri::ipc::InvokeResponseBody::Raw(chunk.to_vec()))?;
let mut chunk = chunk.to_vec();
// append 0 to indicate we are not done yet
chunk.push(0);
stream_channel.send(tauri::ipc::InvokeResponseBody::Raw(chunk))?;
}
// send empty vector when done
stream_channel.send(tauri::ipc::InvokeResponseBody::Raw(Vec::new()))?;
// send 1 to indicate we are done
stream_channel.send(tauri::ipc::InvokeResponseBody::Raw(vec![1]))?;
Ok(())
}

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