refactor(channel): 抽取渠道映射公共函数 + OpenAI映射到body + 空响应修复 + 清理日志
- 抽取 ResolveChannelMappingAndRestrict 统一入口(5处→1个方法) - 抽取 BuildModelMappingChain 到 ChannelMappingResult 方法(5处→1行调用) - OpenAI 三入口 Forward 前应用渠道映射到请求体 - OpenAI Responses/Messages 限制检查添加错误响应 - 清理前端 3 处 console.log 调试日志
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@@ -92,6 +92,23 @@ type ChannelMappingResult struct {
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BillingModelSource string // 计费模型来源("requested" / "upstream")
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}
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// BuildModelMappingChain 根据映射结果和上游实际模型构建映射链描述。
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// reqModel: 客户端请求的原始模型名。
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// upstreamModel: 上游实际使用的模型名(ForwardResult.UpstreamModel)。
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// 返回空字符串表示无映射。
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func (r ChannelMappingResult) BuildModelMappingChain(reqModel, upstreamModel string) string {
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if !r.Mapped {
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if upstreamModel != "" && upstreamModel != reqModel {
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return reqModel + "→" + upstreamModel
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}
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return ""
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}
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if upstreamModel != "" && upstreamModel != r.MappedModel {
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return reqModel + "→" + r.MappedModel + "→" + upstreamModel
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}
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return reqModel + "→" + r.MappedModel
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}
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const (
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channelCacheTTL = 60 * time.Second
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channelErrorTTL = 5 * time.Second // DB 错误时的短缓存
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