From 41875dc50dc3f7e4ceb1acaca222bb2c8bc4185d Mon Sep 17 00:00:00 2001
From: Bruno Charest <bruno.charest@gmail.com>
Date: Sat, 26 Sep 2026 23:01:10 -0400
Subject: [PATCH] =?UTF-8?q?fix(sync):=20403=20InnerTube=20=3D=20version=20?=
 =?UTF-8?q?client=20invent=C3=A9e;=20aligne=20WEB=202.20260623.01.00=20+?=
 =?UTF-8?q?=20expose=20ytReason?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 server/index.mjs                                  |  1 +
 server/oauth.mjs                                  | 11 +++++++++--
 src/components/library/import/import.component.ts |  4 +++-
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/server/index.mjs b/server/index.mjs
index 50dc6fd..50ade20 100644
--- a/server/index.mjs
+++ b/server/index.mjs
@@ -716,6 +716,7 @@ r.get('/oauth/google/yt-history', authMiddlewareCookieAware, oauthLimiter, async
     return res.json({ items, count: items.length, hasMore });
   } catch (error) {
     const out = { error: error?.message || 'ythistory_fetch_failed' };
+    if (error?.ytReason) out.ytReason = error.ytReason;
     if (error?.status === 401) {
       out.hint = 'Session Google expirée : déconnectez puis reconnectez Google.';
     }
diff --git a/server/oauth.mjs b/server/oauth.mjs
index 8bf6a52..cf4bd59 100644
--- a/server/oauth.mjs
+++ b/server/oauth.mjs
@@ -506,7 +506,12 @@ async function innertubePost(path, apiKey, accessToken, body, label = 'innertube
       if (!resp.ok) {
         const err = new Error(`${label}_failed_${resp.status}`);
         err.status = resp.status === 401 ? 401 : resp.status;
-        err.details = data?.error || undefined;
+        // Motif YouTube (sans PII) pour diagnostiquer : ex. rateLimitExceeded,
+        // botGuard, authError... remonte jusqu'à l'UI.
+        try {
+          const e0 = data?.error?.errors?.[0] || {};
+          err.ytReason = String(e0.reason || data?.error?.message || '').slice(0, 160) || undefined;
+        } catch {}
         throw err;
       }
       return data;
@@ -522,7 +527,9 @@ async function innertubePost(path, apiKey, accessToken, body, label = 'innertube
 }
 
 function innertubeContext() {
-  return { client: { clientName: 'WEB', clientVersion: '2.20260101.00.00', hl: 'fr', gl: 'FR' } };
+  // Version du client WEB alignée sur youtubei.js (dépendance du projet) :
+  // une version inconnue/inventée est rejetée en 403 par l'anti-bot.
+  return { client: { clientName: 'WEB', clientVersion: '2.20260623.01.00', hl: 'fr', gl: 'FR' } };
 }
 
 /** Boucle browse + continuations générique (FEhistory, WL, ...). */
diff --git a/src/components/library/import/import.component.ts b/src/components/library/import/import.component.ts
index ba53f8d..cfbdea9 100644
--- a/src/components/library/import/import.component.ts
+++ b/src/components/library/import/import.component.ts
@@ -157,7 +157,9 @@ export class ImportComponent implements OnInit {
     } catch (e: any) {
       const code = e?.error?.error || e?.message || 'ythistory_fetch_failed';
       const hint = e?.error?.hint;
-      this.ytAutoError.set(hint ? `${code} — ${hint}` : code);
+      const ytReason = e?.error?.ytReason;
+      const extra = [hint, ytReason ? `YouTube: ${ytReason}` : ''].filter(Boolean).join(' — ');
+      this.ytAutoError.set(extra ? `${code} — ${extra}` : code);
     } finally {
       this.ytAutoLoading.set(false);
     }