fix(server-connections): claim before AuthKit settles sent no identity - #4043
fix(server-connections): claim before AuthKit settles sent no identity#4043chelojimenez wants to merge 2 commits into
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#4040 gave the handoff page a way to prove who the visitor is, and then asked too early. `AuthKitProvider` restores its session asynchronously, so a claim fired on mount calls `getAccessToken` before there is one to give: it answers with nothing, the claim goes out unidentified, and the backend refuses an account-owned link to its own owner. Same symptom as before — "This authorization link belongs to a different account" for your own link — with the cause moved from "never sends a token" to "sends it a moment too late". Reproduced on staging after #4040 deployed. The claim now waits for `isLoading` to clear. Only the claim waits; a signed-out visitor settles just as fast with no user and proceeds unauthenticated, so guest-owned links are unaffected. The regression test models what the real provider does — no token until it has finished restoring a session — because the previous mock answered immediately and therefore could not see this. Verified it fails with the gate removed. Client typecheck clean; 15 handoff tests green. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Merge Risk: ⚪ Minimal · up to This localized change delays authorization-link claims until the authentication session settles, preventing owner claims from being sent without identity while preserving guest behavior; no actionable merge-blocking risk remains beyond normal checks and review. Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
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1 issue found across 2 files
Prompt for AI agents (unresolved issues)
Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.
<file name="mcpjam-inspector/client/src/components/server-connections/ServerConnectionHandoff.tsx">
<violation number="1" location="mcpjam-inspector/client/src/components/server-connections/ServerConnectionHandoff.tsx:168">
P2: While AuthKit is loading, the raw handoff token remains in the address bar and can be sent as the full same-origin `Referer` to the local AuthKit proxy. Replace the token URL before waiting, while retaining the token only in memory for the later claim.</violation>
</file>
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Re-trigger cubic
| // | ||
| // Only the claim waits. A visitor who is signed out settles just as fast | ||
| // with no user, and the claim proceeds unauthenticated exactly as before. | ||
| if (authLoading) return; |
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P2: While AuthKit is loading, the raw handoff token remains in the address bar and can be sent as the full same-origin Referer to the local AuthKit proxy. Replace the token URL before waiting, while retaining the token only in memory for the later claim.
Prompt for AI agents
Check if this issue is valid — if so, understand the root cause and fix it. At mcpjam-inspector/client/src/components/server-connections/ServerConnectionHandoff.tsx, line 168:
<comment>While AuthKit is loading, the raw handoff token remains in the address bar and can be sent as the full same-origin `Referer` to the local AuthKit proxy. Replace the token URL before waiting, while retaining the token only in memory for the later claim.</comment>
<file context>
@@ -156,6 +156,16 @@ export function ServerConnectionHandoff() {
+ //
+ // Only the claim waits. A visitor who is signed out settles just as fast
+ // with no user, and the claim proceeds unauthenticated exactly as before.
+ if (authLoading) return;
if (claimed.current) return;
claimed.current = true;
</file context>
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Actionable comments posted: 1
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Inline comments:
In
`@mcpjam-inspector/client/src/components/server-connections/ServerConnectionHandoff.tsx`:
- Around line 159-168: Resolve the route before the AuthKit loading gate in
ServerConnectionHandoff, and return only when route?.kind === "claim" and
authLoading is true. Allow /authorize/complete and the initial /state request to
proceed during auth loading, preserving their continuation-cookie behavior. Add
a callback-route test covering authLoading=true.
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mcpjam-inspector/client/src/components/server-connections/ServerConnectionHandoff.tsxmcpjam-inspector/client/src/components/server-connections/__tests__/ServerConnectionHandoff.test.tsx
…back Review catch. The loading gate sat above route resolution, so it also held back the two paths that authenticate with the continuation cookie and want nothing from AuthKit: the initial `/state` read, and `/authorize/complete`. The second is the one that matters. A refresh that is merely slow delays the code exchange; a refresh that never settles strands it entirely — AFTER the user has consented at the authorization server, so their authorization is spent and the request sits in `authorizing` until it expires. That would have made the fix for one dead end into the cause of a worse one. Route first, gate second: only `kind === "claim"` waits. New test drives the callback with `isLoading` stuck true and asserts `/authorize/complete` still posts. Verified it fails against the broad gate. Client typecheck clean; 16 handoff tests green. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Follow-up to #4040, reproduced on staging after it deployed: the owner still gets "This authorization link belongs to a different account" for their own link.
#4040 gave the page a way to prove who the visitor is, and then asked too early.
AuthKitProviderrestores its session asynchronously, so a claim fired on mount callsgetAccessTokenbefore there is one to give — it answers with nothing, the claim goes out unidentified, and the backend refuses. Same symptom, cause moved from "never sends a token" to "sends it a moment too late".The claim now waits for
isLoadingto clear. Only the claim waits: a signed-out visitor settles just as fast with no user and proceeds unauthenticated, so guest-owned links are unaffected.The regression test now models what the real provider does (no token until the session is restored) — the previous mock answered immediately and therefore could not see this. I verified the test fails with the gate removed and passes with it.
Client typecheck clean; 15 handoff tests green.
🤖 Generated with Claude Code
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Summary by cubic
Prevents unidentified claims during server connection handoff by waiting for AuthKit session restoration. Previously the claim fired on mount and called
getAccessTokenbefore a session existed, sending no identity and failing with “This authorization link belongs to a different account”; now only the claim waits forisLoadingto clear while the initial/stateread and/authorize/completecallback proceed immediately to avoid stalling or stranding the code exchange.ServerConnectionHandoffonauthLoadingfromuseAuth(@workos-inc/authkit-react); addsauthLoadingandgetAccessTokento the effect dependencies./authorize/completeeven ifisLoadingremains true.Written for commit a473467. Summary will update on new commits.