Files
codex/codex-rs/app-server-protocol/schema/json/v2/LoginAccountParams.json
daniel-oai 47a9e2e084 Add ChatGPT device-code login to app server (#15525)
## Problem

App-server clients could only initiate ChatGPT login through the browser
callback flow, even though the shared login crate already supports
device-code auth. That left VS Code, Codex App, and other app-server
clients without a first-class way to use the existing device-code
backend when browser redirects are brittle or when the client UX wants
to own the login ceremony.

## Mental model

This change adds a second ChatGPT login start path to app-server:
clients can now call `account/login/start` with `type:
"chatgptDeviceCode"`. App-server immediately returns a `loginId` plus
the device-code UX payload (`verificationUrl` and `userCode`), then
completes the login asynchronously in the background using the existing
`codex_login` polling flow. Successful device-code login still resolves
to ordinary `chatgpt` auth, and completion continues to flow through the
existing `account/login/completed` and `account/updated` notifications.

## Non-goals

This does not introduce a new auth mode, a new account shape, or a
device-code eligibility discovery API. It also does not add automatic
fallback to browser login in core; clients remain responsible for
choosing when to request device code and whether to retry with a
different UX if the backend/admin policy rejects it.

## Tradeoffs

We intentionally keep `login_chatgpt_common` as a local validation
helper instead of turning it into a capability probe. Device-code
eligibility is checked by actually calling `request_device_code`, which
means policy-disabled cases surface as an immediate request error rather
than an async completion event. We also keep the active-login state
machine minimal: browser and device-code logins share the same public
cancel contract, but device-code cancellation is implemented with a
local cancel token rather than a larger cross-crate refactor.

## Architecture

The protocol grows a new `chatgptDeviceCode` request/response variant in
app-server v2. On the server side, the new handler reuses the existing
ChatGPT login precondition checks, calls `request_device_code`, returns
the device-code payload, and then spawns a background task that waits on
either cancellation or `complete_device_code_login`. On success, it
reuses the existing auth reload and cloud-requirements refresh path
before emitting `account/login/completed` success and `account/updated`.
On failure or cancellation, it emits only `account/login/completed`
failure. The existing `account/login/cancel { loginId }` contract
remains unchanged and now works for both browser and device-code
attempts.


## Tests

Added protocol serialization coverage for the new request/response
variant, plus app-server tests for device-code success, failure, cancel,
and start-time rejection behavior. Existing browser ChatGPT login
coverage remains in place to show that the callback-based flow is
unchanged.
2026-03-27 00:27:15 -07:00

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{
"$schema": "http://json-schema.org/draft-07/schema#",
"oneOf": [
{
"properties": {
"apiKey": {
"type": "string"
},
"type": {
"enum": [
"apiKey"
],
"title": "ApiKeyv2::LoginAccountParamsType",
"type": "string"
}
},
"required": [
"apiKey",
"type"
],
"title": "ApiKeyv2::LoginAccountParams",
"type": "object"
},
{
"properties": {
"type": {
"enum": [
"chatgpt"
],
"title": "Chatgptv2::LoginAccountParamsType",
"type": "string"
}
},
"required": [
"type"
],
"title": "Chatgptv2::LoginAccountParams",
"type": "object"
},
{
"properties": {
"type": {
"enum": [
"chatgptDeviceCode"
],
"title": "ChatgptDeviceCodev2::LoginAccountParamsType",
"type": "string"
}
},
"required": [
"type"
],
"title": "ChatgptDeviceCodev2::LoginAccountParams",
"type": "object"
},
{
"description": "[UNSTABLE] FOR OPENAI INTERNAL USE ONLY - DO NOT USE. The access token must contain the same scopes that Codex-managed ChatGPT auth tokens have.",
"properties": {
"accessToken": {
"description": "Access token (JWT) supplied by the client. This token is used for backend API requests and email extraction.",
"type": "string"
},
"chatgptAccountId": {
"description": "Workspace/account identifier supplied by the client.",
"type": "string"
},
"chatgptPlanType": {
"description": "Optional plan type supplied by the client.\n\nWhen `null`, Codex attempts to derive the plan type from access-token claims. If unavailable, the plan defaults to `unknown`.",
"type": [
"string",
"null"
]
},
"type": {
"enum": [
"chatgptAuthTokens"
],
"title": "ChatgptAuthTokensv2::LoginAccountParamsType",
"type": "string"
}
},
"required": [
"accessToken",
"chatgptAccountId",
"type"
],
"title": "ChatgptAuthTokensv2::LoginAccountParams",
"type": "object"
}
],
"title": "LoginAccountParams"
}