fix: clear expiresAt on OAuth auth code → access token exchange

Mastodon clients (Mona mobile) were forced to re-authenticate every
10 minutes because the auth code's expiresAt field was not cleared
when exchanged for an access token. The token-required middleware
then rejected the token as expired.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

package.json

@@ -5,8 +5,8 @@
   "main": "index.js",
   "scripts": {
     "preinstall": "node scripts/setup-gitea-url-rewrite.mjs",
-    "postinstall": "xattr -w com.apple.fileprovider.ignore#P 1 node_modules 2>/dev/null || true && node scripts/patch-lightningcss.mjs && node scripts/patch-endpoint-media-scope.mjs && node scripts/patch-endpoint-media-sharp-runtime.mjs && node scripts/patch-frontend-sharp-runtime.mjs && node scripts/patch-endpoint-files-upload-route.mjs && node scripts/patch-endpoint-files-upload-locales.mjs && node scripts/patch-endpoint-activitypub-locales.mjs && node scripts/patch-endpoint-homepage-locales.mjs && node scripts/patch-endpoint-homepage-identity-defaults.mjs && node scripts/patch-federation-unlisted-guards.mjs && node scripts/patch-endpoint-micropub-where-note-visibility.mjs && node scripts/patch-endpoint-podroll-opml-upload.mjs && node scripts/patch-frontend-serviceworker-file.mjs && node scripts/patch-endpoint-comments-locales.mjs && node scripts/patch-endpoint-posts-locales.mjs && node scripts/patch-endpoint-conversations-locales.mjs && node scripts/patch-conversations-collection-guards.mjs && node scripts/patch-indiekit-routes-rate-limits.mjs && node scripts/patch-indiekit-error-production-stack.mjs && node scripts/patch-indieauth-devmode-guard.mjs && node scripts/patch-listening-endpoint-runtime-guards.mjs && node scripts/patch-endpoint-github-changelog-categories.mjs && node scripts/patch-endpoint-github-contributions-log.mjs && node scripts/patch-store-github-error-message.mjs && node scripts/patch-store-github-update-fallback.mjs && node scripts/patch-store-github-gitea-methods.mjs && node scripts/patch-store-github-put-fallback.mjs && node scripts/patch-store-github-content-type.mjs && node scripts/patch-endpoint-blogroll-feeds-alias.mjs && node scripts/patch-endpoint-posts-uid-lookup.mjs && node scripts/patch-conversations-bluesky-self-filter.mjs && node scripts/patch-conversations-bluesky-cursor-fix.mjs && node scripts/patch-endpoint-micropub-source-filter.mjs && node scripts/patch-syndicate-force-checked-default.mjs && node scripts/patch-syndicate-normalize-syndication-array.mjs && node scripts/patch-endpoint-posts-fetch-diagnostic.mjs && node scripts/patch-micropub-fetch-internal-url.mjs && node scripts/patch-micropub-session-token.mjs && node scripts/patch-indiekit-endpoint-urls-protocol.mjs && node scripts/patch-webmention-sender-retry.mjs && node scripts/patch-webmention-sender-livefetch.mjs && node scripts/patch-webmention-sender-reset-stale.mjs && node scripts/patch-webmention-sender-empty-details.mjs && node scripts/patch-bluesky-syndicator-internal-url.mjs && node scripts/patch-bluesky-syndicator-media-type-guard.mjs && node scripts/patch-bluesky-og-own-post-title.mjs && node scripts/patch-bluesky-syndicator-delete.mjs && node scripts/patch-micropub-delete-propagation.mjs && node scripts/patch-ap-startup-gate-bypass.mjs && node scripts/patch-ap-federation-infra.mjs && node scripts/patch-ap-syndication.mjs && node scripts/patch-ap-mastodon-statuses.mjs && node scripts/patch-ap-mastodon-misc.mjs && node scripts/patch-micropub-category-from-posts.mjs && node scripts/patch-tag-input-autocomplete.mjs && node scripts/patch-microsub-batch-concurrency.mjs",
+    "postinstall": "xattr -w com.apple.fileprovider.ignore#P 1 node_modules 2>/dev/null || true && node scripts/patch-lightningcss.mjs && node scripts/patch-endpoint-media-scope.mjs && node scripts/patch-endpoint-media-sharp-runtime.mjs && node scripts/patch-frontend-sharp-runtime.mjs && node scripts/patch-endpoint-files-upload-route.mjs && node scripts/patch-endpoint-files-upload-locales.mjs && node scripts/patch-endpoint-activitypub-locales.mjs && node scripts/patch-endpoint-homepage-locales.mjs && node scripts/patch-endpoint-homepage-identity-defaults.mjs && node scripts/patch-federation-unlisted-guards.mjs && node scripts/patch-endpoint-micropub-where-note-visibility.mjs && node scripts/patch-endpoint-podroll-opml-upload.mjs && node scripts/patch-frontend-serviceworker-file.mjs && node scripts/patch-endpoint-comments-locales.mjs && node scripts/patch-endpoint-posts-locales.mjs && node scripts/patch-endpoint-conversations-locales.mjs && node scripts/patch-conversations-collection-guards.mjs && node scripts/patch-indiekit-routes-rate-limits.mjs && node scripts/patch-indiekit-error-production-stack.mjs && node scripts/patch-indieauth-devmode-guard.mjs && node scripts/patch-listening-endpoint-runtime-guards.mjs && node scripts/patch-endpoint-github-changelog-categories.mjs && node scripts/patch-endpoint-github-contributions-log.mjs && node scripts/patch-store-github-error-message.mjs && node scripts/patch-store-github-update-fallback.mjs && node scripts/patch-store-github-gitea-methods.mjs && node scripts/patch-store-github-put-fallback.mjs && node scripts/patch-store-github-content-type.mjs && node scripts/patch-endpoint-blogroll-feeds-alias.mjs && node scripts/patch-endpoint-posts-uid-lookup.mjs && node scripts/patch-conversations-bluesky-self-filter.mjs && node scripts/patch-conversations-bluesky-cursor-fix.mjs && node scripts/patch-endpoint-micropub-source-filter.mjs && node scripts/patch-syndicate-force-checked-default.mjs && node scripts/patch-syndicate-normalize-syndication-array.mjs && node scripts/patch-endpoint-posts-fetch-diagnostic.mjs && node scripts/patch-micropub-fetch-internal-url.mjs && node scripts/patch-micropub-session-token.mjs && node scripts/patch-indiekit-endpoint-urls-protocol.mjs && node scripts/patch-webmention-sender-retry.mjs && node scripts/patch-webmention-sender-livefetch.mjs && node scripts/patch-webmention-sender-reset-stale.mjs && node scripts/patch-webmention-sender-empty-details.mjs && node scripts/patch-bluesky-syndicator-internal-url.mjs && node scripts/patch-bluesky-syndicator-media-type-guard.mjs && node scripts/patch-bluesky-og-own-post-title.mjs && node scripts/patch-bluesky-syndicator-delete.mjs && node scripts/patch-micropub-delete-propagation.mjs && node scripts/patch-ap-startup-gate-bypass.mjs && node scripts/patch-ap-federation-infra.mjs && node scripts/patch-ap-syndication.mjs && node scripts/patch-ap-mastodon-statuses.mjs && node scripts/patch-ap-mastodon-misc.mjs && node scripts/patch-ap-oauth-token-expiry.mjs && node scripts/patch-micropub-category-from-posts.mjs && node scripts/patch-tag-input-autocomplete.mjs && node scripts/patch-microsub-batch-concurrency.mjs",
-    "serve": "export NODE_ENV=${NODE_ENV:-production} INDIEKIT_DEBUG=${INDIEKIT_DEBUG:-0} && node scripts/preflight-production-security.mjs && node scripts/preflight-mongo-connection.mjs && node scripts/preflight-activitypub-rsa-key.mjs && node scripts/preflight-activitypub-profile-urls.mjs && node scripts/preflight-startup-gate.mjs && node scripts/patch-ap-startup-gate-bypass.mjs && node scripts/patch-lightningcss.mjs && node scripts/patch-endpoint-media-scope.mjs && node scripts/patch-endpoint-media-sharp-runtime.mjs && node scripts/patch-frontend-sharp-runtime.mjs && node scripts/patch-endpoint-files-upload-route.mjs && node scripts/patch-endpoint-files-upload-locales.mjs && node scripts/patch-endpoint-activitypub-locales.mjs && node scripts/patch-endpoint-homepage-locales.mjs && node scripts/patch-endpoint-homepage-identity-defaults.mjs && node scripts/patch-federation-unlisted-guards.mjs && node scripts/patch-endpoint-micropub-where-note-visibility.mjs && node scripts/patch-endpoint-podroll-opml-upload.mjs && node scripts/patch-frontend-serviceworker-file.mjs && node scripts/patch-endpoint-comments-locales.mjs && node scripts/patch-endpoint-posts-locales.mjs && node scripts/patch-endpoint-conversations-locales.mjs && node scripts/patch-conversations-collection-guards.mjs && node scripts/patch-indiekit-routes-rate-limits.mjs && node scripts/patch-indiekit-error-production-stack.mjs && node scripts/patch-indieauth-devmode-guard.mjs && node scripts/patch-listening-endpoint-runtime-guards.mjs && node scripts/patch-endpoint-github-changelog-categories.mjs && node scripts/patch-endpoint-github-contributions-log.mjs && node scripts/patch-store-github-error-message.mjs && node scripts/patch-store-github-update-fallback.mjs && node scripts/patch-store-github-gitea-methods.mjs && node scripts/patch-store-github-put-fallback.mjs && node scripts/patch-store-github-content-type.mjs && node scripts/patch-microsub-reader-ap-dispatch.mjs && node scripts/patch-microsub-compose-draft-guard.mjs && node scripts/patch-microsub-no-bookmark-autofollow.mjs && node scripts/patch-microsub-batch-concurrency.mjs && node scripts/patch-endpoint-blogroll-feeds-alias.mjs && node scripts/patch-endpoint-posts-uid-lookup.mjs && node scripts/patch-conversations-bluesky-self-filter.mjs && node scripts/patch-conversations-bluesky-cursor-fix.mjs && node scripts/patch-endpoint-micropub-source-filter.mjs && node scripts/patch-syndicate-force-checked-default.mjs && node scripts/patch-syndicate-normalize-syndication-array.mjs && node scripts/patch-endpoint-posts-fetch-diagnostic.mjs && node scripts/patch-micropub-fetch-internal-url.mjs && node scripts/patch-micropub-session-token.mjs && node scripts/patch-indiekit-endpoint-urls-protocol.mjs && node scripts/patch-webmention-sender-retry.mjs && node scripts/patch-webmention-sender-livefetch.mjs && node scripts/patch-webmention-sender-reset-stale.mjs && node scripts/patch-webmention-sender-empty-details.mjs && node scripts/patch-bluesky-syndicator-internal-url.mjs && node scripts/patch-bluesky-syndicator-media-type-guard.mjs && node scripts/patch-bluesky-og-own-post-title.mjs && node scripts/patch-bluesky-syndicator-delete.mjs && node scripts/patch-micropub-delete-propagation.mjs && node scripts/patch-ap-federation-infra.mjs && node scripts/patch-ap-syndication.mjs && node scripts/patch-ap-mastodon-statuses.mjs && node scripts/patch-ap-mastodon-misc.mjs && node scripts/patch-micropub-category-from-posts.mjs && node scripts/patch-tag-input-autocomplete.mjs && node --max-old-space-size=1024 --max-semi-space-size=32 --require ./metrics-shim.cjs node_modules/@indiekit/indiekit/bin/cli.js serve --config indiekit.config.mjs",
+    "serve": "export NODE_ENV=${NODE_ENV:-production} INDIEKIT_DEBUG=${INDIEKIT_DEBUG:-0} && node scripts/preflight-production-security.mjs && node scripts/preflight-mongo-connection.mjs && node scripts/preflight-activitypub-rsa-key.mjs && node scripts/preflight-activitypub-profile-urls.mjs && node scripts/preflight-startup-gate.mjs && node scripts/patch-ap-startup-gate-bypass.mjs && node scripts/patch-lightningcss.mjs && node scripts/patch-endpoint-media-scope.mjs && node scripts/patch-endpoint-media-sharp-runtime.mjs && node scripts/patch-frontend-sharp-runtime.mjs && node scripts/patch-endpoint-files-upload-route.mjs && node scripts/patch-endpoint-files-upload-locales.mjs && node scripts/patch-endpoint-activitypub-locales.mjs && node scripts/patch-endpoint-homepage-locales.mjs && node scripts/patch-endpoint-homepage-identity-defaults.mjs && node scripts/patch-federation-unlisted-guards.mjs && node scripts/patch-endpoint-micropub-where-note-visibility.mjs && node scripts/patch-endpoint-podroll-opml-upload.mjs && node scripts/patch-frontend-serviceworker-file.mjs && node scripts/patch-endpoint-comments-locales.mjs && node scripts/patch-endpoint-posts-locales.mjs && node scripts/patch-endpoint-conversations-locales.mjs && node scripts/patch-conversations-collection-guards.mjs && node scripts/patch-indiekit-routes-rate-limits.mjs && node scripts/patch-indiekit-error-production-stack.mjs && node scripts/patch-indieauth-devmode-guard.mjs && node scripts/patch-listening-endpoint-runtime-guards.mjs && node scripts/patch-endpoint-github-changelog-categories.mjs && node scripts/patch-endpoint-github-contributions-log.mjs && node scripts/patch-store-github-error-message.mjs && node scripts/patch-store-github-update-fallback.mjs && node scripts/patch-store-github-gitea-methods.mjs && node scripts/patch-store-github-put-fallback.mjs && node scripts/patch-store-github-content-type.mjs && node scripts/patch-microsub-reader-ap-dispatch.mjs && node scripts/patch-microsub-compose-draft-guard.mjs && node scripts/patch-microsub-no-bookmark-autofollow.mjs && node scripts/patch-microsub-batch-concurrency.mjs && node scripts/patch-endpoint-blogroll-feeds-alias.mjs && node scripts/patch-endpoint-posts-uid-lookup.mjs && node scripts/patch-conversations-bluesky-self-filter.mjs && node scripts/patch-conversations-bluesky-cursor-fix.mjs && node scripts/patch-endpoint-micropub-source-filter.mjs && node scripts/patch-syndicate-force-checked-default.mjs && node scripts/patch-syndicate-normalize-syndication-array.mjs && node scripts/patch-endpoint-posts-fetch-diagnostic.mjs && node scripts/patch-micropub-fetch-internal-url.mjs && node scripts/patch-micropub-session-token.mjs && node scripts/patch-indiekit-endpoint-urls-protocol.mjs && node scripts/patch-webmention-sender-retry.mjs && node scripts/patch-webmention-sender-livefetch.mjs && node scripts/patch-webmention-sender-reset-stale.mjs && node scripts/patch-webmention-sender-empty-details.mjs && node scripts/patch-bluesky-syndicator-internal-url.mjs && node scripts/patch-bluesky-syndicator-media-type-guard.mjs && node scripts/patch-bluesky-og-own-post-title.mjs && node scripts/patch-bluesky-syndicator-delete.mjs && node scripts/patch-micropub-delete-propagation.mjs && node scripts/patch-ap-federation-infra.mjs && node scripts/patch-ap-syndication.mjs && node scripts/patch-ap-mastodon-statuses.mjs && node scripts/patch-ap-mastodon-misc.mjs && node scripts/patch-ap-oauth-token-expiry.mjs && node scripts/patch-micropub-category-from-posts.mjs && node scripts/patch-tag-input-autocomplete.mjs && node --max-old-space-size=1024 --max-semi-space-size=32 --require ./metrics-shim.cjs node_modules/@indiekit/indiekit/bin/cli.js serve --config indiekit.config.mjs",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "keywords": [],

scripts/patch-ap-oauth-token-expiry.mjs

@@ -0,0 +1,82 @@
+/**
+ * Patch: Clear expiresAt when exchanging auth code for access token.
+ *
+ * Bug: The authorization code is created with expiresAt = now + 10 minutes.
+ * When the code is exchanged for an access token, the updateOne only $set's
+ * accessToken/refreshToken/refreshExpiresAt but does NOT $unset expiresAt.
+ * The token-required middleware checks expiresAt and rejects the token after
+ * 10 minutes, forcing Mastodon clients (Mona) to re-authenticate constantly.
+ *
+ * The refresh_token flow already does $unset: { expiresAt: "" } correctly.
+ * This patch adds the same $unset to the authorization_code exchange.
+ *
+ * Access tokens should not expire (matching Mastodon behavior — valid until
+ * revoked), as the code comments already state.
+ */
+
+import { readFile, writeFile } from "node:fs/promises";
+
+const AP_BASE = "@rmdes/indiekit-endpoint-activitypub";
+const AP_ROOTS = [
+  `node_modules/${AP_BASE}`,
+  `node_modules/@indiekit/indiekit/node_modules/${AP_BASE}`,
+];
+
+const SCRIPT = "patch-ap-oauth-token-expiry";
+const MARKER = "// patched: unset-expiresAt-on-code-exchange";
+const TARGET = "lib/mastodon/routes/oauth.js";
+
+const OLD = `        $set: {
+          accessToken,
+          refreshToken,
+          refreshExpiresAt: new Date(Date.now() + REFRESH_TOKEN_TTL),
+        },
+      },
+    );
+
+    res.json({
+      access_token: accessToken,`;
+
+const NEW = `        $set: {
+          accessToken,
+          refreshToken,
+          refreshExpiresAt: new Date(Date.now() + REFRESH_TOKEN_TTL),
+        },
+        $unset: { expiresAt: "" }, ${MARKER}
+      },
+    );
+
+    res.json({
+      access_token: accessToken,`;
+
+let patched = false;
+
+for (const root of AP_ROOTS) {
+  const filePath = `${root}/${TARGET}`;
+  let content;
+  try {
+    content = await readFile(filePath, "utf-8");
+  } catch {
+    continue;
+  }
+
+  if (content.includes(MARKER)) {
+    console.log(`[${SCRIPT}] ${filePath}: already patched, skipping`);
+    patched = true;
+    continue;
+  }
+
+  if (!content.includes(OLD)) {
+    console.warn(`[${SCRIPT}] ${filePath}: target string not found, skipping`);
+    continue;
+  }
+
+  const updated = content.replace(OLD, NEW);
+  await writeFile(filePath, updated, "utf-8");
+  console.log(`[${SCRIPT}] ${filePath}: patched successfully`);
+  patched = true;
+}
+
+if (!patched) {
+  console.warn(`[${SCRIPT}] WARNING: no files were patched`);
+}