fix(antigravity): 修复非流式 Claude To Antigravity 响应内容为空的问题
- 修复 TransformGeminiToClaude 的 JSON 解析逻辑,当 V1InternalResponse 解析成功但 candidates 为空时,尝试直接解析为 GeminiResponse 格式 - 修复 handleClaudeStreamToNonStreaming 收集流式响应的逻辑,累积所有 chunks 的内容而不是只保留最后一个(最后一个 chunk 通常 text 为空) - 新增 mergeCollectedPartsToResponse 函数,合并所有类型的 parts (text、thinking、functionCall、inlineData),保持原始顺序 - 连续的普通 text parts 合并为一个,thinking/functionCall/inlineData 保持原样
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@@ -20,6 +20,15 @@ func TransformGeminiToClaude(geminiResp []byte, originalModel string) ([]byte, *
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v1Resp.Response = directResp
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v1Resp.ResponseID = directResp.ResponseID
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v1Resp.ModelVersion = directResp.ModelVersion
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} else if len(v1Resp.Response.Candidates) == 0 {
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// 第一次解析成功但 candidates 为空,说明是直接的 GeminiResponse 格式
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var directResp GeminiResponse
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if err2 := json.Unmarshal(geminiResp, &directResp); err2 != nil {
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return nil, nil, fmt.Errorf("parse gemini response as direct: %w", err2)
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}
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v1Resp.Response = directResp
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v1Resp.ResponseID = directResp.ResponseID
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v1Resp.ModelVersion = directResp.ModelVersion
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}
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// 使用处理器转换
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@@ -174,16 +183,20 @@ func (p *NonStreamingProcessor) processPart(part *GeminiPart) {
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p.trailingSignature = ""
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}
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p.textBuilder += part.Text
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// 非空 text 带签名 - 立即刷新并输出空 thinking 块
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// 非空 text 带签名 - 特殊处理:先输出 text,再输出空 thinking 块
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if signature != "" {
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p.flushText()
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p.contentBlocks = append(p.contentBlocks, ClaudeContentItem{
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Type: "text",
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Text: part.Text,
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})
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p.contentBlocks = append(p.contentBlocks, ClaudeContentItem{
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Type: "thinking",
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Thinking: "",
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Signature: signature,
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})
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} else {
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// 普通 text (无签名) - 累积到 builder
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p.textBuilder += part.Text
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}
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}
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}
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@@ -1985,6 +1985,58 @@ func getOrCreateGeminiParts(response map[string]any) (result map[string]any, exi
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return result, existingParts, setParts
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}
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// mergeCollectedPartsToResponse 将收集的所有 parts 合并到 Gemini 响应中
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// 这个函数会合并所有类型的 parts:text、thinking、functionCall、inlineData 等
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// 保持原始顺序,只合并连续的普通 text parts
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func mergeCollectedPartsToResponse(response map[string]any, collectedParts []map[string]any) map[string]any {
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if len(collectedParts) == 0 {
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return response
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}
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result, _, setParts := getOrCreateGeminiParts(response)
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// 合并策略:
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// 1. 保持原始顺序
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// 2. 连续的普通 text parts 合并为一个
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// 3. thinking、functionCall、inlineData 等保持原样
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var mergedParts []any
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var textBuffer strings.Builder
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flushTextBuffer := func() {
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if textBuffer.Len() > 0 {
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mergedParts = append(mergedParts, map[string]any{
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"text": textBuffer.String(),
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})
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textBuffer.Reset()
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}
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}
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for _, part := range collectedParts {
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// 检查是否是普通 text part
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if text, ok := part["text"].(string); ok {
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// 检查是否有 thought 标记
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if thought, _ := part["thought"].(bool); thought {
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// thinking part,先刷新 text buffer,然后保留原样
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flushTextBuffer()
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mergedParts = append(mergedParts, part)
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} else {
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// 普通 text,累积到 buffer
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_, _ = textBuffer.WriteString(text)
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}
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} else {
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// 非 text part(functionCall、inlineData 等),先刷新 text buffer,然后保留原样
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flushTextBuffer()
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mergedParts = append(mergedParts, part)
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}
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}
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// 刷新剩余的 text
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flushTextBuffer()
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setParts(mergedParts)
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return result
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}
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// mergeImagePartsToResponse 将收集到的图片 parts 合并到 Gemini 响应中
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func mergeImagePartsToResponse(response map[string]any, imageParts []map[string]any) map[string]any {
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if len(imageParts) == 0 {
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@@ -2168,6 +2220,7 @@ func (s *AntigravityGatewayService) handleClaudeStreamToNonStreaming(c *gin.Cont
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var firstTokenMs *int
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var last map[string]any
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var lastWithParts map[string]any
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var collectedParts []map[string]any // 收集所有 parts(包括 text、thinking、functionCall、inlineData 等)
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type scanEvent struct {
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line string
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@@ -2262,9 +2315,12 @@ func (s *AntigravityGatewayService) handleClaudeStreamToNonStreaming(c *gin.Cont
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last = parsed
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// 保留最后一个有 parts 的响应
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// 保留最后一个有 parts 的响应,并收集所有 parts
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if parts := extractGeminiParts(parsed); len(parts) > 0 {
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lastWithParts = parsed
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// 收集所有 parts(text、thinking、functionCall、inlineData 等)
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collectedParts = append(collectedParts, parts...)
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}
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case <-intervalCh:
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@@ -2287,6 +2343,11 @@ returnResponse:
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return nil, s.writeClaudeError(c, http.StatusBadGateway, "upstream_error", "Empty response from upstream")
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}
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// 将收集的所有 parts 合并到最终响应中
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if len(collectedParts) > 0 {
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finalResponse = mergeCollectedPartsToResponse(finalResponse, collectedParts)
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}
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// 序列化为 JSON(Gemini 格式)
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geminiBody, err := json.Marshal(finalResponse)
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if err != nil {
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