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fix(opds): workaround parsing of encoded params in proxied url in cloudflare (#2575)

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This commit is contained in:
Huang Xin
2025-12-01 12:49:04 +08:00
committed by GitHub
parent 2ca3561093
commit 02e885fbb7
3 changed files with 18 additions and 4 deletions
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apps/readest-app/src/app/api/opds/proxy/route.ts
+12 -1
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@@ -1,7 +1,18 @@
import { NextRequest, NextResponse } from 'next/server';
async function handleRequest(request: NextRequest, method: 'GET' | 'HEAD') {
const url = request.nextUrl.searchParams.get('url');
// Cloudflare Workers incorrectly decodes %26 to & in the url parameter value,
// causing query parameters within the proxied URL (like &start_index=26) to be
// treated as separate top-level parameters instead of part of the url value.
// We work around this by manually extracting the url parameter - capturing everything
// from 'url=' until we hit our known parameters (&stream= or &auth=), then decoding it.
const fullUrl = request.url;
const urlParamStart = fullUrl.indexOf('url=') + 4;
const streamParam = fullUrl.lastIndexOf('&stream=');
const authParam = fullUrl.lastIndexOf('&auth=');
const urlParamEnd = Math.min(...[streamParam, authParam].filter((i) => i > 0), fullUrl.length);
const encodedUrl = fullUrl.substring(urlParamStart, urlParamEnd);
const url = decodeURIComponent(encodedUrl);
const auth = request.nextUrl.searchParams.get('auth');
const stream = request.nextUrl.searchParams.get('stream');