feature: Support getting the API key from the request header when provider.apiTokens is not configured. (#3394)

Co-authored-by: 澄潭 <zty98751@alibaba-inc.com>
This commit is contained in:
zikunchang
2026-01-28 14:03:24 +08:00
committed by GitHub
parent cbcc3ecf43
commit f2fcd68ef8
2 changed files with 60 additions and 1 deletions

View File

@@ -7,6 +7,7 @@ import (
"strings"
"github.com/alibaba/higress/plugins/wasm-go/extensions/ai-proxy/util"
"github.com/higress-group/proxy-wasm-go-sdk/proxywasm"
"github.com/higress-group/proxy-wasm-go-sdk/proxywasm/types"
"github.com/higress-group/wasm-go/pkg/log"
"github.com/higress-group/wasm-go/pkg/wrapper"
@@ -134,8 +135,63 @@ func (m *openaiProvider) TransformRequestHeaders(ctx wrapper.HttpContext, apiNam
} else {
util.OverwriteRequestHostHeader(headers, defaultOpenaiDomain)
}
var token string
// 1. If apiTokens is configured, use it first
if len(m.config.apiTokens) > 0 {
util.OverwriteRequestAuthorizationHeader(headers, "Bearer "+m.config.GetApiTokenInUse(ctx))
token = m.config.GetApiTokenInUse(ctx)
if token == "" {
log.Warnf("[openaiProvider.TransformRequestHeaders] apiTokens count > 0 but GetApiTokenInUse returned empty")
}
} else {
// If no apiToken is configured, try to extract from original request headers
// 2. If authHeaderKey is configured, use the specified header
if m.config.authHeaderKey != "" {
if apiKey, err := proxywasm.GetHttpRequestHeader(m.config.authHeaderKey); err == nil && apiKey != "" {
token = apiKey
log.Debugf("[openaiProvider.TransformRequestHeaders] Using token from configured header: %s", m.config.authHeaderKey)
}
}
// 3. If authHeaderKey is not configured, check default headers in priority order
if token == "" {
defaultHeaders := []string{"x-api-key", "x-authorization"}
for _, headerName := range defaultHeaders {
if apiKey, err := proxywasm.GetHttpRequestHeader(headerName); err == nil && apiKey != "" {
token = apiKey
log.Debugf("[openaiProvider.TransformRequestHeaders] Using token from %s header", headerName)
break
}
}
}
// 4. Finally check Authorization header
if token == "" {
if auth, err := proxywasm.GetHttpRequestHeader("Authorization"); err == nil && auth != "" {
// Extract token from "Bearer <token>" format
if strings.HasPrefix(auth, "Bearer ") {
token = strings.TrimPrefix(auth, "Bearer ")
log.Debugf("[openaiProvider.TransformRequestHeaders] Using token from Authorization header (Bearer format)")
} else {
token = auth
log.Debugf("[openaiProvider.TransformRequestHeaders] Using token from Authorization header (no Bearer prefix)")
}
}
}
}
// 5. Set Authorization header (avoid duplicate Bearer prefix)
if token != "" {
// Check if token already contains Bearer prefix
if !strings.HasPrefix(token, "Bearer ") {
token = "Bearer " + token
}
util.OverwriteRequestAuthorizationHeader(headers, token)
log.Debugf("[openaiProvider.TransformRequestHeaders] Set Authorization header successfully")
} else {
log.Warnf("[openaiProvider.TransformRequestHeaders] No auth token available - neither configured in apiTokens nor in request headers")
}
headers.Del("Content-Length")
}