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Bounded WEB HTTP conveyor with replay-safe streaming downlink added

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Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
This commit is contained in:
Alexey
2026-10-03 16:02:18 +03:00
parent c4555e25f3
commit 823c6cbc7f
39 changed files with 2186 additions and 237 deletions
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src/web/bridge/request.js
+6 -5
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@@ -26,12 +26,13 @@ function create(settings){
if(status===204&&(path==='/api/v1/up'||path==='/api/v1/down'))return {limit:0,exact:true,reason:'protocol'};
return {limit:0,exact:true,reason:'http'};
}
async function send(path,frozenOptions,remainingBudget,maxAttempts){
async function send(path,frozenOptions,remainingBudget,maxAttempts,receiver){
let delay=250,attempt=0,lastReason='network';maxAttempts=maxAttempts||9;
const attempts=()=>typeof maxAttempts==='function'?maxAttempts():maxAttempts;
const initialBudget=remainingBudget?Math.min(settings.retryMs(),remainingBudget()):settings.retryMs();
const deadline=Date.now()+Math.max(0,initialBudget),external=frozenOptions.signal;
const attemptLimit=path==='/api/v1/down'?settings.longPollMs()+settings.requestMs():settings.requestMs();
while(attempt<maxAttempts){
while(attempt<attempts()){
if(settings.closed()||(external&&external.aborted))throw new Error('request aborted');
const remaining=Math.min(deadline-Date.now(),remainingBudget?remainingBudget():Infinity);if(remaining<=0)break;attempt++;
const controller=new AbortController(),abort=()=>controller.abort();let timedOut=false;
@@ -45,12 +46,12 @@ function create(settings){
lastReason='http';wait=retryAfterMs(fetched);settings.cancel(fetched);
}else{
const policy=responsePolicy(path,fetched.status);let body;
try{body=await settings.read(fetched,policy.limit,policy.exact,controller.signal)}
try{body=receiver&&(fetched.status===200||fetched.status===204)?await receiver(fetched,controller.signal):await settings.read(fetched,policy.limit,policy.exact,controller.signal)}
catch(error){
controller.abort();
if(external&&external.aborted)throw error;
if(timedOut)throw settings.failure('timeout','response deadline exceeded');
throw settings.failure(policy.reason,error&&error.message);
throw settings.failure(settings.reason(error,policy.reason),error&&error.message);
}
response={status:fetched.status,headers:fetched.headers,body};return response;
}
@@ -60,7 +61,7 @@ function create(settings){
if(timedOut)lastReason='timeout';
if(settings.reason(error,'')==='protocol')throw error;
}finally{clearTimeout(timer);if(external)external.removeEventListener('abort',abort)}
const after=Math.min(deadline-Date.now(),remainingBudget?remainingBudget():Infinity);if(attempt>=maxAttempts||after<=0)break;
const after=Math.min(deadline-Date.now(),remainingBudget?remainingBudget():Infinity);if(attempt>=attempts()||after<=0)break;
settings.retrying();
const backoff=wait||delay+Math.floor(Math.random()*Math.max(1,delay/4));
await pause(Math.min(backoff,after),external);delay=Math.min(delay*2,2000);