Files
coder/coderd/aibridge/aibridge.go
T
Susana Ferreira 970bd73691 feat: add /api/v2/ai-gateway API route aliases (#26475)
## Description

Registers `/api/v2/ai-gateway/*` as the new API path for AI Gateway, replacing `/api/v2/aibridge/*`. Both prefixes share the same route builder (`aiBridgeRoutes`) backed by a single in-memory handler, so existing `/aibridge` endpoints continue to work. New endpoints must be registered on the enterprise API handler under `/api/v2/ai-gateway` only.

Swagger annotations now point to `/api/v2/ai-gateway` paths with a backward-compatibility note referencing `/aibridge`. The legacy `/aibridge` routes are skipped in the swagger documentation test.

## Changes

- Store one raw handler (`aiGatewayHandler`) instead of two prefix-stripped handlers
- Register `/ai-gateway` and `/ai-gateway/proxy` route aliases alongside legacy `/aibridge` routes
- Move `/aibridge/keys` to `/ai-gateway/keys`
- Update in-process transport to use `/api/v2/ai-gateway` prefix
- Update SDK client URLs and proxy forwarding URL
- Swap `@Router` and `@Tags` annotations from `aibridge`/`AI Bridge` to `ai-gateway`/`AI Gateway`
- Rename user-facing error messages from "AI Bridge" to "AI Gateway"
- Define consts for route prefixes (`AIGatewayRootPath`, `AIBridgeRootPath`)
- Update tests and comments to use new paths

Note: the following will be addressed in follow-up PRs:
- Frontend API URLs
- Frontend routes and redirects
- Dogfood main.tf updates
- Hand-written documentation URL updates
- aibridge internal comments and nits
- Scale tests path updates

Refs https://linear.app/coder/issue/AIGOV-230

> Generated with the assistance of Coder Agents (@ssncferreira)
2026-06-23 12:15:10 +01:00

72 lines
2.5 KiB
Go

// Package aibridge provides utilities for the AI Bridge feature.
package aibridge
import (
"net/http"
"strings"
)
// HeaderCoderToken is a header set by clients opting into BYOK
// (Bring Your Own Key) mode. It carries the Coder token so
// that Authorization and X-Api-Key can carry the user's own LLM
// credentials. When present, AI Bridge forwards the user's LLM
// headers unchanged instead of injecting the centralized key.
//
// The AI Bridge proxy also sets this header automatically for clients
// that use per-user LLM credentials but cannot set custom headers.
const HeaderCoderToken = "X-Coder-AI-Governance-Token" //nolint:gosec // This is a header name, not a credential.
// HeaderCoderRequestID is a header set by aibridgeproxyd on each
// request forwarded to aibridged for cross-service log correlation.
const HeaderCoderRequestID = "X-Coder-AI-Governance-Request-Id"
// Copilot provider.
const (
ProviderCopilotBusiness = "copilot-business"
HostCopilotBusiness = "api.business.githubcopilot.com"
ProviderCopilotEnterprise = "copilot-enterprise"
HostCopilotEnterprise = "api.enterprise.githubcopilot.com"
)
// ChatGPT provider.
const (
ProviderChatGPT = "chatgpt"
HostChatGPT = "chatgpt.com"
BaseURLChatGPT = "https://" + HostChatGPT + "/backend-api/codex"
)
// API route prefixes for the AI Gateway and legacy AI Bridge endpoints.
const (
// AIGatewayRootPath is the URL prefix the AI Gateway handler
// registers all of its routes under.
AIGatewayRootPath = "/api/v2/ai-gateway"
// AIBridgeRootPath is the legacy prefix kept for backward compatibility.
AIBridgeRootPath = "/api/v2/aibridge"
)
// IsBYOK reports whether the request is using BYOK mode, determined
// by the presence of the X-Coder-AI-Governance-Token header.
func IsBYOK(header http.Header) bool {
return strings.TrimSpace(header.Get(HeaderCoderToken)) != ""
}
// ExtractAuthToken extracts a token from HTTP headers.
// It checks the BYOK header first (set by clients opting into BYOK),
// then falls back to Authorization: Bearer and X-Api-Key for direct
// centralized mode. If none are present, an empty string is returned.
func ExtractAuthToken(header http.Header) string {
if token := strings.TrimSpace(header.Get(HeaderCoderToken)); token != "" {
return token
}
if auth := strings.TrimSpace(header.Get("Authorization")); auth != "" {
fields := strings.Fields(auth)
if len(fields) == 2 && strings.EqualFold(fields[0], "Bearer") {
return fields[1]
}
}
if apiKey := strings.TrimSpace(header.Get("X-Api-Key")); apiKey != "" {
return apiKey
}
return ""
}