ide: give AI Assistant a chat model, and stop the proxy refusing the editor - #109
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Included review availability: Your plan provides up to 4 included reviews per hour; 2 remain after this review. 📝 WalkthroughWalkthroughThe change moves JetBrains AI Chat model persistence into the AI Assistant settings file, removes credential storage, updates IDE proxy routing and key synchronization, and adds tests for both areas. ChangesIDE configuration and proxy behavior
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Bug fix Sequence Diagram(s)sequenceDiagram
participant Client
participant IDEProxy
participant Upstream
Client->>IDEProxy: Send secret-prefixed chat request
IDEProxy->>IDEProxy: Read synchronized API key and rewrite request
IDEProxy->>Upstream: Forward request
Upstream-->>IDEProxy: Return completion or 401
IDEProxy-->>Client: Return final response
Suggested reviewers: Merge Risk: ⚪ Minimal · up to The proxy now requires its generated session path and safely coordinates token renewal, with focused coverage for the changed behaviors. The change is ready to merge. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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In `@src/ide/openai_proxy.cpp`:
- Around line 501-516: Protect the local proxy endpoint by requiring an
unguessable URL-path capability for credentialed completion requests, since the
current bind address does not authenticate local callers. Update the endpoint
routing and AI Assistant request construction around the proxy handler and
Runtime::api_key so valid requests include and validate the capability, while
preserving compatibility with the IDE’s inability to send an authorization
header.
- Line 544: In the Runtime token-handling code, protect every read and write of
Runtime::api_key with a shared mutex, including accesses in Upstream, Stream,
and RenewToken. Add a separate renewal mutex around the account::Refresh flow so
concurrent 401 retries cannot overlap, while preserving the existing retry
behavior in the attempt == 0, expired path.
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src/ide/jetbrains_profile.cppsrc/ide/jetbrains_profile.hsrc/ide/openai_proxy.cppsrc/ide/openai_proxy.htests/CMakeLists.txttests/test_wally_ide_proxy_auth.cpptests/test_wally_jetbrains_profile.cpp
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Both addressed in b59bcec. The endpoint is guarded again. The bearer token was removed because AI Assistant cannot be handed a key from outside its settings dialog. It can be handed a base URL, and it appends to whatever it is given, so the secret now rides in the path: routes live under
One thing found while writing the tests, not fixed here: starting and stopping enough proxies in a single process eventually hangs. |
1 participant
AI Chat in a JetBrains IDE could not use the model wally configured. Two bugs, both ours.
Chat had no model
The provider and base URL were written, and the picker listed the model, but AI Chat read "No compatible model is available". Chat takes its model from AI Assistant's own settings (
llm.for.code.xml,LLMSettings), not from the provider, and wally never wrote it. On one machine that setting still named a JetBrains-hosted model, which without a subscription resolves to nothing.Wally now names the model there. Its own settings file is mostly the reader's, so the two options we own are replaced and every other byte is left alone.
Confirmed on a real IDE: chat answers through glm-5.3-flash.
The proxy refused the editor
Every chat request came back 401 from our own proxy, and the IDE reported it as a licensing problem. The proxy wanted a per-session bearer token; AI Assistant takes a provider key from its own settings dialog and nowhere else, so it sent none. Wally wrote the token into the macOS keychain, and the IDE read nothing: its BYOK config showed
apiKey=empty on every launch./v1/modelsnever checked the token, so the connection test passed and only chat failed, which is what made this hard to see.The proxy no longer asks for a credential. What remains is the bind: 127.0.0.1 only, and the port lives as long as the editor does. Another process on the same machine could spend the signed-in user's credit through it while it runs, and that is the cost of serving the only caller it has.
The keychain write goes with it, along with
StoreSecret,CopyAccess, andModelsXML, which was already dead — it built the file the IDE deletes.Two more, found while testing
A request body that cannot be retargeted is refused with 400 rather than forwarded. It used to pass through unchanged, carrying the caller's own model name, which is exactly what retargeting exists to prevent.
The non-streaming path now renews an expired session once, the same as the streaming path. Without it an expired session handed the reader a bare 401 — the same failure this change set out to remove.
The XML is parsed, not pattern-matched
The first version searched for
<option name="…">as text. An adversarial pass found nine ways that corrupts a file: markup quoted inside CDATA or a comment, a commented-out copy of the component, attributes in another order or single-quoted, a nested component stealing the closing tag, a>inside an attribute value. Worst of them, a document cut short mid-write was replaced with a fresh one — the reader's settings gone, success reported.It now scans: comments, CDATA and declarations are skipped as text, attribute order and quote style do not matter, elements are skipped whole rather than walked into, and anything it cannot read exactly is refused rather than guessed at.
Tests
tests/test_wally_jetbrains_profile.cpp, 19 cases on the transform, andtests/test_wally_ide_proxy_auth.cpp, 8 on the proxy.Every fix was checked by reverting it and watching the test go red, including each of the nine corruption cases.
Property run over 3000 generated documents, each valid XML in:
Known
Tool calls still fail against the hosted endpoint. The gateway rejects a shape its own model produces: glm-5.3-flash streams tool call arguments as
['', '{}'], and a client replaying that first fragment sendsarguments: "", which comes back 400. Reproduced against development — the JSON-string form is accepted, an empty string and an object are not. That belongs in InferenceInfra. The repair carried here is a workaround in the wrong repo and should come out once the gateway accepts what it emitted.Not in this change, both pre-existing and neither reachable today:
Runtime::api_keyis written without a lock from a request thread, andStartProxywith port 0 returns a base URL naming:0.Summary by CodeRabbit
New Features
Bug Fixes