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Merge branch 'dev-release'

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This commit is contained in:
yangjianbo
2026-02-07 19:58:00 +08:00
parent f3605ddc71 2588fa6a8f
commit a14dfb769a
62 changed files with 2674 additions and 564 deletions
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236
backend/internal/service/antigravity_gateway_service.go
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@@ -1582,6 +1582,208 @@ func stripSignatureSensitiveBlocksFromClaudeRequest(req *antigravity.ClaudeReque
return changed, nil
}
// ForwardUpstream 透传请求到上游 Antigravity 服务
// 用于 upstream 类型账号，直接使用 base_url + api_key 转发，不走 OAuth token
func (s *AntigravityGatewayService) ForwardUpstream(ctx context.Context, c *gin.Context, account *Account, body []byte) (*ForwardResult, error) {
startTime := time.Now()
sessionID := getSessionID(c)
prefix := logPrefix(sessionID, account.Name)
// 获取上游配置
baseURL := strings.TrimSpace(account.GetCredential("base_url"))
apiKey := strings.TrimSpace(account.GetCredential("api_key"))
if baseURL == "" || apiKey == "" {
return nil, fmt.Errorf("upstream account missing base_url or api_key")
}
baseURL = strings.TrimSuffix(baseURL, "/")
// 解析请求获取模型信息
var claudeReq antigravity.ClaudeRequest
if err := json.Unmarshal(body, &claudeReq); err != nil {
return nil, fmt.Errorf("parse claude request: %w", err)
}
if strings.TrimSpace(claudeReq.Model) == "" {
return nil, fmt.Errorf("missing model")
}
originalModel := claudeReq.Model
billingModel := originalModel
// 构建上游请求 URL
upstreamURL := baseURL + "/v1/messages"
// 创建请求
req, err := http.NewRequestWithContext(ctx, http.MethodPost, upstreamURL, bytes.NewReader(body))
if err != nil {
return nil, fmt.Errorf("create upstream request: %w", err)
}
// 设置请求头
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Authorization", "Bearer "+apiKey)
req.Header.Set("x-api-key", apiKey) // Claude API 兼容
// 透传 Claude 相关 headers
if v := c.GetHeader("anthropic-version"); v != "" {
req.Header.Set("anthropic-version", v)
}
if v := c.GetHeader("anthropic-beta"); v != "" {
req.Header.Set("anthropic-beta", v)
}
// 代理 URL
proxyURL := ""
if account.ProxyID != nil && account.Proxy != nil {
proxyURL = account.Proxy.URL()
}
// 发送请求
resp, err := s.httpUpstream.Do(req, proxyURL, account.ID, account.Concurrency)
if err != nil {
log.Printf("%s upstream request failed: %v", prefix, err)
return nil, fmt.Errorf("upstream request failed: %w", err)
}
defer func() { _ = resp.Body.Close() }()
// 处理错误响应
if resp.StatusCode >= 400 {
respBody, _ := io.ReadAll(io.LimitReader(resp.Body, 2<<20))
// 429 错误时标记账号限流
if resp.StatusCode == http.StatusTooManyRequests {
s.handleUpstreamError(ctx, prefix, account, resp.StatusCode, resp.Header, respBody, AntigravityQuotaScopeClaude)
}
// 透传上游错误
c.Header("Content-Type", resp.Header.Get("Content-Type"))
c.Status(resp.StatusCode)
_, _ = c.Writer.Write(respBody)
return &ForwardResult{
Model: billingModel,
}, nil
}
// 处理成功响应（流式/非流式）
var usage *ClaudeUsage
var firstTokenMs *int
if claudeReq.Stream {
// 流式响应：透传
c.Header("Content-Type", "text/event-stream")
c.Header("Cache-Control", "no-cache")
c.Header("Connection", "keep-alive")
c.Header("X-Accel-Buffering", "no")
c.Status(http.StatusOK)
usage, firstTokenMs = s.streamUpstreamResponse(c, resp, startTime)
} else {
// 非流式响应：直接透传
respBody, err := io.ReadAll(resp.Body)
if err != nil {
return nil, fmt.Errorf("read upstream response: %w", err)
}
// 提取 usage
usage = s.extractClaudeUsage(respBody)
c.Header("Content-Type", resp.Header.Get("Content-Type"))
c.Status(http.StatusOK)
_, _ = c.Writer.Write(respBody)
}
// 构建计费结果
duration := time.Since(startTime)
log.Printf("%s status=success duration_ms=%d", prefix, duration.Milliseconds())
return &ForwardResult{
Model: billingModel,
Stream: claudeReq.Stream,
Duration: duration,
FirstTokenMs: firstTokenMs,
Usage: ClaudeUsage{
InputTokens: usage.InputTokens,
OutputTokens: usage.OutputTokens,
CacheReadInputTokens: usage.CacheReadInputTokens,
CacheCreationInputTokens: usage.CacheCreationInputTokens,
},
}, nil
}
// streamUpstreamResponse 透传上游流式响应并提取 usage
func (s *AntigravityGatewayService) streamUpstreamResponse(c *gin.Context, resp *http.Response, startTime time.Time) (*ClaudeUsage, *int) {
usage := &ClaudeUsage{}
var firstTokenMs *int
var firstTokenRecorded bool
scanner := bufio.NewScanner(resp.Body)
buf := make([]byte, 0, 64*1024)
scanner.Buffer(buf, 1024*1024)
for scanner.Scan() {
line := scanner.Bytes()
// 记录首 token 时间
if !firstTokenRecorded && len(line) > 0 {
ms := int(time.Since(startTime).Milliseconds())
firstTokenMs = &ms
firstTokenRecorded = true
}
// 尝试从 message_delta 或 message_stop 事件提取 usage
if bytes.HasPrefix(line, []byte("data: ")) {
dataStr := bytes.TrimPrefix(line, []byte("data: "))
var event map[string]any
if json.Unmarshal(dataStr, &event) == nil {
if u, ok := event["usage"].(map[string]any); ok {
if v, ok := u["input_tokens"].(float64); ok && int(v) > 0 {
usage.InputTokens = int(v)
}
if v, ok := u["output_tokens"].(float64); ok && int(v) > 0 {
usage.OutputTokens = int(v)
}
if v, ok := u["cache_read_input_tokens"].(float64); ok && int(v) > 0 {
usage.CacheReadInputTokens = int(v)
}
if v, ok := u["cache_creation_input_tokens"].(float64); ok && int(v) > 0 {
usage.CacheCreationInputTokens = int(v)
}
}
}
}
// 透传行
_, _ = c.Writer.Write(line)
_, _ = c.Writer.Write([]byte("\n"))
c.Writer.Flush()
}
return usage, firstTokenMs
}
// extractClaudeUsage 从非流式 Claude 响应提取 usage
func (s *AntigravityGatewayService) extractClaudeUsage(body []byte) *ClaudeUsage {
usage := &ClaudeUsage{}
var resp map[string]any
if json.Unmarshal(body, &resp) != nil {
return usage
}
if u, ok := resp["usage"].(map[string]any); ok {
if v, ok := u["input_tokens"].(float64); ok {
usage.InputTokens = int(v)
}
if v, ok := u["output_tokens"].(float64); ok {
usage.OutputTokens = int(v)
}
if v, ok := u["cache_read_input_tokens"].(float64); ok {
usage.CacheReadInputTokens = int(v)
}
if v, ok := u["cache_creation_input_tokens"].(float64); ok {
usage.CacheCreationInputTokens = int(v)
}
}
return usage
}
// ForwardGemini 转发 Gemini 协议请求
func (s *AntigravityGatewayService) ForwardGemini(ctx context.Context, c *gin.Context, account *Account, originalModel string, action string, stream bool, body []byte, isStickySession bool) (*ForwardResult, error) {
startTime := time.Now()
@@ -1613,7 +1815,7 @@ func (s *AntigravityGatewayService) ForwardGemini(ctx context.Context, c *gin.Co
Usage: ClaudeUsage{},
Model: originalModel,
Stream: false,
Duration: time.Since(time.Now()),
Duration: time.Since(startTime),
FirstTokenMs: nil,
}, nil
default:
@@ -2288,7 +2490,8 @@ func (s *AntigravityGatewayService) handleGeminiStreamingResponse(c *gin.Context
if s.settingService.cfg != nil && s.settingService.cfg.Gateway.MaxLineSize > 0 {
maxLineSize = s.settingService.cfg.Gateway.MaxLineSize
}
scanner.Buffer(make([]byte, 64*1024), maxLineSize)
scanBuf := getSSEScannerBuf64K()
scanner.Buffer(scanBuf[:0], maxLineSize)
usage := &ClaudeUsage{}
var firstTokenMs *int
@@ -2309,7 +2512,8 @@ func (s *AntigravityGatewayService) handleGeminiStreamingResponse(c *gin.Context
}
var lastReadAt int64
atomic.StoreInt64(&lastReadAt, time.Now().UnixNano())
go func() {
go func(scanBuf *sseScannerBuf64K) {
defer putSSEScannerBuf64K(scanBuf)
defer close(events)
for scanner.Scan() {
atomic.StoreInt64(&lastReadAt, time.Now().UnixNano())
@@ -2320,7 +2524,7 @@ func (s *AntigravityGatewayService) handleGeminiStreamingResponse(c *gin.Context
if err := scanner.Err(); err != nil {
_ = sendEvent(scanEvent{err: err})
}
}()
}(scanBuf)
defer close(done)
// 上游数据间隔超时保护（防止上游挂起长期占用连接）
@@ -2445,7 +2649,8 @@ func (s *AntigravityGatewayService) handleGeminiStreamToNonStreaming(c *gin.Cont
if s.settingService.cfg != nil && s.settingService.cfg.Gateway.MaxLineSize > 0 {
maxLineSize = s.settingService.cfg.Gateway.MaxLineSize
}
scanner.Buffer(make([]byte, 64*1024), maxLineSize)
scanBuf := getSSEScannerBuf64K()
scanner.Buffer(scanBuf[:0], maxLineSize)
usage := &ClaudeUsage{}
var firstTokenMs *int
@@ -2473,7 +2678,8 @@ func (s *AntigravityGatewayService) handleGeminiStreamToNonStreaming(c *gin.Cont
var lastReadAt int64
atomic.StoreInt64(&lastReadAt, time.Now().UnixNano())
go func() {
go func(scanBuf *sseScannerBuf64K) {
defer putSSEScannerBuf64K(scanBuf)
defer close(events)
for scanner.Scan() {
atomic.StoreInt64(&lastReadAt, time.Now().UnixNano())
@@ -2484,7 +2690,7 @@ func (s *AntigravityGatewayService) handleGeminiStreamToNonStreaming(c *gin.Cont
if err := scanner.Err(); err != nil {
_ = sendEvent(scanEvent{err: err})
}
}()
}(scanBuf)
defer close(done)
// 上游数据间隔超时保护（防止上游挂起长期占用连接）
@@ -2888,7 +3094,8 @@ func (s *AntigravityGatewayService) handleClaudeStreamToNonStreaming(c *gin.Cont
if s.settingService.cfg != nil && s.settingService.cfg.Gateway.MaxLineSize > 0 {
maxLineSize = s.settingService.cfg.Gateway.MaxLineSize
}
scanner.Buffer(make([]byte, 64*1024), maxLineSize)
scanBuf := getSSEScannerBuf64K()
scanner.Buffer(scanBuf[:0], maxLineSize)
var firstTokenMs *int
var last map[string]any
@@ -2914,7 +3121,8 @@ func (s *AntigravityGatewayService) handleClaudeStreamToNonStreaming(c *gin.Cont
var lastReadAt int64
atomic.StoreInt64(&lastReadAt, time.Now().UnixNano())
go func() {
go func(scanBuf *sseScannerBuf64K) {
defer putSSEScannerBuf64K(scanBuf)
defer close(events)
for scanner.Scan() {
atomic.StoreInt64(&lastReadAt, time.Now().UnixNano())
@@ -2925,7 +3133,7 @@ func (s *AntigravityGatewayService) handleClaudeStreamToNonStreaming(c *gin.Cont
if err := scanner.Err(); err != nil {
_ = sendEvent(scanEvent{err: err})
}
}()
}(scanBuf)
defer close(done)
// 上游数据间隔超时保护（防止上游挂起长期占用连接）
@@ -3068,7 +3276,8 @@ func (s *AntigravityGatewayService) handleClaudeStreamingResponse(c *gin.Context
if s.settingService.cfg != nil && s.settingService.cfg.Gateway.MaxLineSize > 0 {
maxLineSize = s.settingService.cfg.Gateway.MaxLineSize
}
scanner.Buffer(make([]byte, 64*1024), maxLineSize)
scanBuf := getSSEScannerBuf64K()
scanner.Buffer(scanBuf[:0], maxLineSize)
// 辅助函数：转换 antigravity.ClaudeUsage 到 service.ClaudeUsage
convertUsage := func(agUsage *antigravity.ClaudeUsage) *ClaudeUsage {
@@ -3100,7 +3309,8 @@ func (s *AntigravityGatewayService) handleClaudeStreamingResponse(c *gin.Context
}
var lastReadAt int64
atomic.StoreInt64(&lastReadAt, time.Now().UnixNano())
go func() {
go func(scanBuf *sseScannerBuf64K) {
defer putSSEScannerBuf64K(scanBuf)
defer close(events)
for scanner.Scan() {
atomic.StoreInt64(&lastReadAt, time.Now().UnixNano())
@@ -3111,7 +3321,7 @@ func (s *AntigravityGatewayService) handleClaudeStreamingResponse(c *gin.Context
if err := scanner.Err(); err != nil {
_ = sendEvent(scanEvent{err: err})
}
}()
}(scanBuf)
defer close(done)
streamInterval := time.Duration(0)