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feat: antigravity 配额域限流

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song
2026-01-09 17:35:02 +08:00
parent dc3cd62125
commit da1f3d61be
10 changed files with 207 additions and 15 deletions
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30
backend/internal/service/antigravity_gateway_service.go
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@@ -451,6 +451,7 @@ func (s *AntigravityGatewayService) Forward(ctx context.Context, c *gin.Context,
originalModel := claudeReq.Model
mappedModel := s.getMappedModel(account, claudeReq.Model)
quotaScope, _ := resolveAntigravityQuotaScope(originalModel)
// 获取 access_token
if s.tokenProvider == nil {
@@ -529,7 +530,7 @@ func (s *AntigravityGatewayService) Forward(ctx context.Context, c *gin.Context,
}
// 所有重试都失败，标记限流状态
if resp.StatusCode == 429 {
s.handleUpstreamError(ctx, prefix, account, resp.StatusCode, resp.Header, respBody)
s.handleUpstreamError(ctx, prefix, account, resp.StatusCode, resp.Header, respBody, quotaScope)
}
// 最后一次尝试也失败
resp = &http.Response{
@@ -621,7 +622,7 @@ func (s *AntigravityGatewayService) Forward(ctx context.Context, c *gin.Context,
// 处理错误响应（重试后仍失败或不触发重试）
if resp.StatusCode >= 400 {
s.handleUpstreamError(ctx, prefix, account, resp.StatusCode, resp.Header, respBody)
s.handleUpstreamError(ctx, prefix, account, resp.StatusCode, resp.Header, respBody, quotaScope)
if s.shouldFailoverUpstreamError(resp.StatusCode) {
return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
@@ -946,6 +947,7 @@ func (s *AntigravityGatewayService) ForwardGemini(ctx context.Context, c *gin.Co
if len(body) == 0 {
return nil, s.writeGoogleError(c, http.StatusBadRequest, "Request body is empty")
}
quotaScope, _ := resolveAntigravityQuotaScope(originalModel)
// 解析请求以获取 image_size（用于图片计费）
imageSize := s.extractImageSize(body)
@@ -1048,7 +1050,7 @@ func (s *AntigravityGatewayService) ForwardGemini(ctx context.Context, c *gin.Co
}
// 所有重试都失败，标记限流状态
if resp.StatusCode == 429 {
s.handleUpstreamError(ctx, prefix, account, resp.StatusCode, resp.Header, respBody)
s.handleUpstreamError(ctx, prefix, account, resp.StatusCode, resp.Header, respBody, quotaScope)
}
resp = &http.Response{
StatusCode: resp.StatusCode,
@@ -1101,7 +1103,7 @@ func (s *AntigravityGatewayService) ForwardGemini(ctx context.Context, c *gin.Co
goto handleSuccess
}
s.handleUpstreamError(ctx, prefix, account, resp.StatusCode, resp.Header, respBody)
s.handleUpstreamError(ctx, prefix, account, resp.StatusCode, resp.Header, respBody, quotaScope)
if s.shouldFailoverUpstreamError(resp.StatusCode) {
return nil, &UpstreamFailoverError{StatusCode: resp.StatusCode}
@@ -1215,7 +1217,7 @@ func sleepAntigravityBackoffWithContext(ctx context.Context, attempt int) bool {
}
}
func (s *AntigravityGatewayService) handleUpstreamError(ctx context.Context, prefix string, account *Account, statusCode int, headers http.Header, body []byte) {
func (s *AntigravityGatewayService) handleUpstreamError(ctx context.Context, prefix string, account *Account, statusCode int, headers http.Header, body []byte, quotaScope AntigravityQuotaScope) {
// 429 使用 Gemini 格式解析（从 body 解析重置时间）
if statusCode == 429 {
resetAt := ParseGeminiRateLimitResetTime(body)
@@ -1226,13 +1228,23 @@ func (s *AntigravityGatewayService) handleUpstreamError(ctx context.Context, pre
defaultDur = 5 * time.Minute
}
ra := time.Now().Add(defaultDur)
log.Printf("%s status=429 rate_limited reset_in=%v (fallback)", prefix, defaultDur)
_ = s.accountRepo.SetRateLimited(ctx, account.ID, ra)
log.Printf("%s status=429 rate_limited scope=%s reset_in=%v (fallback)", prefix, quotaScope, defaultDur)
if quotaScope == "" {
return
}
if err := s.accountRepo.SetAntigravityQuotaScopeLimit(ctx, account.ID, quotaScope, ra); err != nil {
log.Printf("%s status=429 rate_limit_set_failed scope=%s error=%v", prefix, quotaScope, err)
}
return
}
resetTime := time.Unix(*resetAt, 0)
log.Printf("%s status=429 rate_limited reset_at=%v reset_in=%v", prefix, resetTime.Format("15:04:05"), time.Until(resetTime).Truncate(time.Second))
_ = s.accountRepo.SetRateLimited(ctx, account.ID, resetTime)
log.Printf("%s status=429 rate_limited scope=%s reset_at=%v reset_in=%v", prefix, quotaScope, resetTime.Format("15:04:05"), time.Until(resetTime).Truncate(time.Second))
if quotaScope == "" {
return
}
if err := s.accountRepo.SetAntigravityQuotaScopeLimit(ctx, account.ID, quotaScope, resetTime); err != nil {
log.Printf("%s status=429 rate_limit_set_failed scope=%s error=%v", prefix, quotaScope, err)
}
return
}
// 其他错误码继续使用 rateLimitService