From 486215bfa2120ca3170313d9f289a596c63cfefc Mon Sep 17 00:00:00 2001
From: Emmanuel Engelhart <kelson@kiwix.org>
Date: Sat, 20 Jun 2026 06:39:07 +0200
Subject: [PATCH] Rollback magnet link hack

---
 static/skin/index.js | 56 --------------------------------------------
 test/server.cpp      |  4 ++--
 2 files changed, 2 insertions(+), 58 deletions(-)

diff --git a/static/skin/index.js b/static/skin/index.js
index 1818ae79..fa8ced9a 100644
--- a/static/skin/index.js
+++ b/static/skin/index.js
@@ -244,59 +244,6 @@
         }
     }
 
-    function makeURLSearchString(params, keysToURIEncode) {
-        let output = '';
-        for (const [key, value] of params.entries()) {
-            let finalValue = (keysToURIEncode.indexOf(key) >= 0) ? encodeURIComponent(value) : value;
-            output += `&${key}=${finalValue}`;
-        }
-        // exclude first char so the first params are not prefixed with &
-        return output.substring(1);
-    }
-
-    /* hack for library.kiwix.org magnet links (created by MirrorBrain)
-        See https://github.com/kiwix/container-images/issues/242 */
-    async function getFixedMirrorbrainMagnet(magnetLink) {
-        // parse as query parameters
-        const params = new URLSearchParams(
-            magnetLink.replaceAll('&amp;', '&').replace(/^magnet:/, ''));
-
-        const zimUrl = params.get('as'); // as= is fallback URL
-        // download metalink to build list of mirrored URLs
-        let mirrorUrls = [];
-
-        const metalink = await fetch(`${zimUrl}.meta4`).then(response => {
-            return response.ok ? response.text() : '';
-        }).catch((_error) => '');
-        if (metalink) {
-            try {
-                const parser = new DOMParser();
-                const doc = parser.parseFromString(metalink, "application/xml");
-                doc.querySelectorAll("url").forEach((node) => {
-                    if (node.hasAttribute("priority")) { // ensures its a mirror link
-                        mirrorUrls.push(node.innerHTML);
-                    }
-                });
-            } catch (err) {
-                // not a big deal, magnet will only contain primary URL
-                console.debug(`Failed to parse mirror links for ${zimUrl}`);
-            }
-        }
-
-        // set webseed (ws=) URL to primary download URL (redirects to mirror)
-        params.set('ws', zimUrl);
-        // if we got metalink mirror URLs, append them all
-        if (mirrorUrls) {
-            mirrorUrls.forEach((url) => {
-                params.append('ws', url);
-            });
-        }
-
-        params.set('xs', `${zimUrl}.torrent`);  // adding xs= to point to torrent URL
-
-        return 'magnet:?' + makeURLSearchString(params, ['ws', 'as', 'dn', 'xs', 'tr']);
-    }
-
     async function getMagnetLink(downloadLink) {
         const magnetUrl = downloadLink + '.magnet';
         const controller = new AbortController();
@@ -304,9 +251,6 @@
         const magnetLink = await fetch(magnetUrl, { signal: controller.signal }).then(response => {
             return response.ok ? response.text() : '';
         }).catch((_error) => '');
-        if (magnetLink) {
-            return await getFixedMirrorbrainMagnet(magnetLink);
-        }
         return magnetLink;
     }
 
diff --git a/test/server.cpp b/test/server.cpp
index d024fbcd..9f81533e 100644
--- a/test/server.cpp
+++ b/test/server.cpp
@@ -70,7 +70,7 @@ const ResourceCollection resources200Compressible{
   { DYNAMIC_CONTENT, "/ROOT%23%3F/skin/index.css" },
   { STATIC_CONTENT,  "/ROOT%23%3F/skin/index.css?cacheid=ae79e41a" },
   { DYNAMIC_CONTENT, "/ROOT%23%3F/skin/index.js" },
-  { STATIC_CONTENT,  "/ROOT%23%3F/skin/index.js?cacheid=e3305ca0" },
+  { STATIC_CONTENT,  "/ROOT%23%3F/skin/index.js?cacheid=3bd1263f" },
   { DYNAMIC_CONTENT, "/ROOT%23%3F/skin/iso6391To3.js" },
   { STATIC_CONTENT,  "/ROOT%23%3F/skin/iso6391To3.js?cacheid=ecde2bb3" },
   { DYNAMIC_CONTENT, "/ROOT%23%3F/skin/isotope.pkgd.min.js" },
@@ -309,7 +309,7 @@ R"EXPECTEDRESULT(      href="/ROOT%23%3F/skin/kiwix.css?cacheid=b4e29e64"
     <script type="text/javascript" src="/ROOT%23%3F/skin/languages.js?cacheid=d2d6933b" defer></script>
     <script src="/ROOT%23%3F/skin/isotope.pkgd.min.js?cacheid=2e48d392" defer></script>
     <script src="/ROOT%23%3F/skin/iso6391To3.js?cacheid=ecde2bb3"></script>
-    <script type="text/javascript" src="/ROOT%23%3F/skin/index.js?cacheid=e3305ca0" defer></script>
+    <script type="text/javascript" src="/ROOT%23%3F/skin/index.js?cacheid=3bd1263f" defer></script>
         <img src="/ROOT%23%3F/skin/feed.svg?cacheid=055b333f"
         <img src="/ROOT%23%3F/skin/langSelector.svg?cacheid=00b59961"
 )EXPECTEDRESULT"