fix(opencode): support Luna with ChatGPT OAuth
This commit is contained in:
Aiden Cline
@@ -152,13 +152,19 @@ describe("plugin.codex", () => {
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test("uses Codex context limits for OAuth GPT models", async () => {
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const hooks = await CodexAuthPlugin({} as never)
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const limit = { context: 1_050_000, input: 922_000, output: 128_000 }
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const ids = [
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"gpt-5.4",
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"gpt-5.5",
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"gpt-5.6",
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"gpt-5.6-luna",
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"gpt-5.6-luna-pro",
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"gpt-5.6-sol",
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"gpt-5.6-sol-pro",
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"gpt-5.6-terra",
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"gpt-5.6-terra-pro",
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]
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const provider = {
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models: Object.fromEntries(
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["gpt-5.4", "gpt-5.5", "gpt-5.6-sol", "gpt-5.6-terra", "gpt-5.6-luna"].map((id) => [
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id,
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{ id, api: { id }, limit, cost: {} },
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]),
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),
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models: Object.fromEntries(ids.map((id) => [id, { id, api: { id }, limit, cost: {} }])),
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}
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const models = await hooks.provider!.models!(provider as never, { auth: { type: "oauth" } } as never)
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@@ -168,11 +174,155 @@ describe("plugin.codex", () => {
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expect(models["gpt-5.6-sol"]?.limit).toEqual({ context: 500_000, input: 372_000, output: 128_000 })
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expect(models["gpt-5.6-terra"]?.limit).toEqual({ context: 500_000, input: 372_000, output: 128_000 })
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expect(models["gpt-5.6-luna"]?.limit).toEqual({ context: 500_000, input: 372_000, output: 128_000 })
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expect(models["gpt-5.6"]).toBeUndefined()
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expect(Object.keys(models)).toEqual(ids.filter((id) => id !== "gpt-5.6"))
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expect(await hooks.provider!.models!(provider as never, { auth: { type: "api" } } as never)).toBe(
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provider.models as never,
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)
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})
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test("applies Responses Lite only to exact Luna requests and keeps its session UUID stable", async () => {
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const requests: Array<{ body: Record<string, unknown>; headers: Headers }> = []
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using server = Bun.serve({
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port: 0,
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async fetch(request) {
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requests.push({ body: await request.json(), headers: request.headers })
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return Response.json({})
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},
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})
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const hooks = await CodexAuthPlugin({} as never, {
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codexApiEndpoint: new URL("/backend-api/codex/responses", server.url).toString(),
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})
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const loaded = await hooks.auth!.loader!(
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async () => ({
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type: "oauth",
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refresh: "refresh",
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access: "access",
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expires: Date.now() + 60_000,
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}),
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{} as never,
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)
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const first = {
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model: "gpt-5.6-luna",
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stream: true,
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input: [
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{
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type: "message",
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role: "user",
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content: [{ type: "input_image", image_url: "data:image/png;base64,a", detail: "high" }],
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},
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],
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tools: [],
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instructions: "Be precise",
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tool_choice: "required",
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parallel_tool_calls: true,
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reasoning: { effort: "high" },
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}
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const continuation = {
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model: "gpt-5.6-luna",
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stream: true,
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input: [{ type: "message", role: "user", content: [{ type: "input_text", text: "Continue" }] }],
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tools: [{ type: "function", name: "search" }],
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instructions: "",
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}
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const headers = {
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"session-id": "opencode-session",
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originator: "opencode",
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"user-agent": "opencode/test",
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}
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await loaded.fetch!("https://api.openai.com/v1/responses", {
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method: "POST",
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headers,
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body: JSON.stringify(first),
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})
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await loaded.fetch!("https://api.openai.com/v1/responses", {
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method: "POST",
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headers,
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body: JSON.stringify(continuation),
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})
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expect(requests).toHaveLength(2)
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const sessionID = requests[0].headers.get("session-id")
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expect(sessionID).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-7[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/)
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expect(requests[1].headers.get("session-id")).toBe(sessionID)
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for (const request of requests) {
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expect(request.headers.get("x-session-affinity")).toBe(sessionID)
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expect(request.headers.get("version")).toBe("0.144.0")
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expect(request.headers.get("x-openai-internal-codex-responses-lite")).toBe("true")
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expect(request.headers.get("originator")).toBe("opencode")
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expect(request.headers.get("user-agent")).toBe("opencode/test")
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expect(request.body.prompt_cache_key).toBe(sessionID)
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expect(request.body.tool_choice).toBe("auto")
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expect(request.body.parallel_tool_calls).toBe(false)
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expect(request.body.tools).toBeUndefined()
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expect(request.body.instructions).toBeUndefined()
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}
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expect(requests[0].body.reasoning).toEqual({ effort: "high", context: "all_turns" })
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expect(requests[1].body.reasoning).toEqual({ context: "all_turns" })
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expect(requests[0].body.input).toEqual([
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{ type: "additional_tools", role: "developer", tools: [] },
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{
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type: "message",
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role: "developer",
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content: [{ type: "input_text", text: "Be precise" }],
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},
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{
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type: "message",
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role: "user",
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content: [{ type: "input_image", image_url: "data:image/png;base64,a" }],
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},
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])
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expect(requests[1].body.input).toEqual([
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{ type: "additional_tools", role: "developer", tools: [{ type: "function", name: "search" }] },
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{ type: "message", role: "user", content: [{ type: "input_text", text: "Continue" }] },
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])
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})
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test("leaves Sol, Terra, and other Responses requests unchanged", async () => {
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const requests: Array<{ body: string; headers: Headers }> = []
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using server = Bun.serve({
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port: 0,
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async fetch(request) {
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requests.push({ body: await request.text(), headers: request.headers })
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return Response.json({})
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},
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})
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const hooks = await CodexAuthPlugin({} as never, {
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codexApiEndpoint: new URL("/backend-api/codex/responses", server.url).toString(),
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})
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const loaded = await hooks.auth!.loader!(
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async () => ({
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type: "oauth",
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refresh: "refresh",
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access: "access",
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expires: Date.now() + 60_000,
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}),
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{} as never,
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)
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const bodies = ["gpt-5.6-sol", "gpt-5.6-terra", "gpt-5.6-luna-pro", "gpt-5.5"].map((model) =>
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JSON.stringify({ model, stream: true, input: [], tools: [], instructions: "Keep me" }),
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)
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await Promise.all(
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bodies.map((body) =>
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loaded.fetch!("https://api.openai.com/v1/responses", {
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method: "POST",
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headers: { "session-id": "opencode-session" },
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body,
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}),
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),
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)
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expect(requests.map((request) => request.body).sort()).toEqual(bodies.sort())
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for (const request of requests) {
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expect(request.headers.get("session-id")).toBe("opencode-session")
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expect(request.headers.get("x-session-affinity")).toBeNull()
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expect(request.headers.get("version")).toBeNull()
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expect(request.headers.get("x-openai-internal-codex-responses-lite")).toBeNull()
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}
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})
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test("deduplicates concurrent Codex token refreshes", async () => {
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let auth = {
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type: "oauth" as const,
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