feat: 算力引擎 Go 后端核心（new-api）
- 统一 OpenAI 兼容 /v1 中继 + 渠道/额度/令牌/流水 - 各领域包：relay 模型网关、model 数据层、controller 管理 API
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package relay
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"strings"
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"github.com/QuantumNous/new-api/common"
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"github.com/QuantumNous/new-api/constant"
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"github.com/QuantumNous/new-api/logger"
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relaycommon "github.com/QuantumNous/new-api/relay/common"
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"github.com/QuantumNous/new-api/relay/helper"
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"github.com/QuantumNous/new-api/relaykit/dto"
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"github.com/QuantumNous/new-api/relaykit/types"
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"github.com/QuantumNous/new-api/service"
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"github.com/QuantumNous/new-api/setting/model_setting"
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"github.com/QuantumNous/new-api/setting/reasoning"
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"github.com/gin-gonic/gin"
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)
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func ClaudeHelper(c *gin.Context, info *relaycommon.RelayInfo) (newAPIError *types.NewAPIError) {
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info.InitChannelMeta(c)
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claudeReq, ok := info.Request.(*dto.ClaudeRequest)
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if !ok {
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return types.NewErrorWithStatusCode(fmt.Errorf("invalid request type, expected *dto.ClaudeRequest, got %T", info.Request), types.ErrorCodeInvalidRequest, http.StatusBadRequest, types.ErrOptionWithSkipRetry())
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}
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request, err := common.DeepCopy(claudeReq)
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if err != nil {
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return types.NewError(fmt.Errorf("failed to copy request to ClaudeRequest: %w", err), types.ErrorCodeInvalidRequest, types.ErrOptionWithSkipRetry())
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}
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err = helper.ModelMappedHelper(c, info, request)
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if err != nil {
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return types.NewError(err, types.ErrorCodeChannelModelMappedError, types.ErrOptionWithSkipRetry())
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}
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adaptor := GetAdaptor(info.ApiType)
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if adaptor == nil {
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return types.NewError(fmt.Errorf("invalid api type: %d", info.ApiType), types.ErrorCodeInvalidApiType, types.ErrOptionWithSkipRetry())
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}
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adaptor.Init(info)
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if request.MaxTokens == nil || *request.MaxTokens == 0 {
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defaultMaxTokens := uint(model_setting.GetClaudeSettings().GetDefaultMaxTokens(request.Model))
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request.MaxTokens = &defaultMaxTokens
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}
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if baseModel, effortLevel, ok := reasoning.TrimEffortSuffix(request.Model); ok && effortLevel != "" &&
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(strings.HasPrefix(request.Model, "claude-opus-4-6") ||
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strings.HasPrefix(request.Model, "claude-opus-4-7") ||
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strings.HasPrefix(request.Model, "claude-opus-4-8")) {
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request.Model = baseModel
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request.Thinking = &dto.Thinking{
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Type: "adaptive",
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}
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request.OutputConfig = json.RawMessage(fmt.Sprintf(`{"effort":"%s"}`, effortLevel))
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if strings.HasPrefix(request.Model, "claude-opus-4-7") ||
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strings.HasPrefix(request.Model, "claude-opus-4-8") {
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// Opus 4.7/4.8 reject non-default temperature/top_p/top_k with 400
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// and defaults display to "omitted"; restore the 4.6 visible summary.
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request.Thinking.Display = "summarized"
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request.Temperature = nil
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request.TopP = nil
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request.TopK = nil
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} else {
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request.Temperature = common.GetPointer[float64](1.0)
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}
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info.UpstreamModelName = request.Model
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} else if model_setting.GetClaudeSettings().ThinkingAdapterEnabled &&
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strings.HasSuffix(request.Model, "-thinking") {
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if request.Thinking == nil {
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baseModel := strings.TrimSuffix(request.Model, "-thinking")
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if strings.HasPrefix(baseModel, "claude-opus-4-7") ||
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strings.HasPrefix(baseModel, "claude-opus-4-8") {
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// Opus 4.7/4.8 reject thinking.type="enabled"; use adaptive at high effort.
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request.Thinking = &dto.Thinking{Type: "adaptive", Display: "summarized"}
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request.OutputConfig = json.RawMessage(`{"effort":"high"}`)
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request.Temperature = nil
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request.TopP = nil
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request.TopK = nil
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} else {
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// 因为BudgetTokens 必须大于1024
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if request.MaxTokens == nil || *request.MaxTokens < 1280 {
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request.MaxTokens = common.GetPointer[uint](1280)
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}
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// BudgetTokens 为 max_tokens 的 80%
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request.Thinking = &dto.Thinking{
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Type: "enabled",
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BudgetTokens: common.GetPointer[int](int(float64(*request.MaxTokens) * model_setting.GetClaudeSettings().ThinkingAdapterBudgetTokensPercentage)),
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}
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// TODO: 临时处理
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// https://docs.anthropic.com/en/docs/build-with-claude/extended-thinking#important-considerations-when-using-extended-thinking
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request.Temperature = common.GetPointer[float64](1.0)
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}
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}
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if !model_setting.ShouldPreserveThinkingSuffix(info.OriginModelName) {
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request.Model = strings.TrimSuffix(request.Model, "-thinking")
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}
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info.UpstreamModelName = request.Model
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}
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if !model_setting.GetGlobalSettings().PassThroughRequestEnabled && !info.ChannelSetting.PassThroughBodyEnabled {
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if effort := request.GetEfforts(); effort != "" {
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info.SetReasoningEffort(effort)
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}
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}
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if info.ChannelSetting.SystemPrompt != "" {
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if request.System == nil {
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request.SetStringSystem(info.ChannelSetting.SystemPrompt)
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} else if info.ChannelSetting.SystemPromptOverride {
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common.SetContextKey(c, constant.ContextKeySystemPromptOverride, true)
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if request.IsStringSystem() {
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existing := strings.TrimSpace(request.GetStringSystem())
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if existing == "" {
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request.SetStringSystem(info.ChannelSetting.SystemPrompt)
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} else {
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request.SetStringSystem(info.ChannelSetting.SystemPrompt + "\n" + existing)
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}
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} else {
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systemContents := request.ParseSystem()
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newSystem := dto.ClaudeMediaMessage{Type: dto.ContentTypeText}
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newSystem.SetText(info.ChannelSetting.SystemPrompt)
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if len(systemContents) == 0 {
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request.System = []dto.ClaudeMediaMessage{newSystem}
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} else {
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request.System = append([]dto.ClaudeMediaMessage{newSystem}, systemContents...)
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}
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}
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}
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}
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if !model_setting.GetGlobalSettings().PassThroughRequestEnabled &&
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!info.ChannelSetting.PassThroughBodyEnabled &&
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service.ShouldChatCompletionsUseResponsesGlobal(info.ChannelId, info.ChannelType, info.OriginModelName) {
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result, convErr := service.ConvertRequest(c, info, types.RelayFormatOpenAI, request)
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if convErr != nil {
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return types.NewError(convErr, types.ErrorCodeConvertRequestFailed, types.ErrOptionWithSkipRetry())
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}
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openAIRequest, ok := result.Value.(*dto.GeneralOpenAIRequest)
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if !ok {
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return types.NewError(fmt.Errorf("expected OpenAI chat completions request, got %T", result.Value), types.ErrorCodeConvertRequestFailed, types.ErrOptionWithSkipRetry())
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}
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usage, newApiErr := chatCompletionsViaResponses(c, info, adaptor, openAIRequest)
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if newApiErr != nil {
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return newApiErr
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}
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service.PostTextConsumeQuota(c, info, usage, nil)
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return nil
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}
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var requestBody io.Reader
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if model_setting.GetGlobalSettings().PassThroughRequestEnabled || info.ChannelSetting.PassThroughBodyEnabled {
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storage, err := common.GetBodyStorage(c)
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if err != nil {
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return types.NewErrorWithStatusCode(err, types.ErrorCodeReadRequestBodyFailed, http.StatusBadRequest, types.ErrOptionWithSkipRetry())
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}
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requestBody = common.NewReplayableBodyReader(storage)
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} else {
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convertedRequest, err := adaptor.ConvertClaudeRequest(c, info, request)
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if err != nil {
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return types.NewError(err, types.ErrorCodeConvertRequestFailed, types.ErrOptionWithSkipRetry())
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}
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relaycommon.AppendRequestConversionFromRequest(info, convertedRequest)
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jsonData, err := common.Marshal(convertedRequest)
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if err != nil {
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return types.NewError(err, types.ErrorCodeConvertRequestFailed, types.ErrOptionWithSkipRetry())
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}
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// remove disabled fields for Claude API
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jsonData, err = relaycommon.RemoveDisabledFields(jsonData, info.ChannelOtherSettings, info.ChannelSetting.PassThroughBodyEnabled)
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if err != nil {
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return types.NewError(err, types.ErrorCodeConvertRequestFailed, types.ErrOptionWithSkipRetry())
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}
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// apply param override
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if len(info.ParamOverride) > 0 {
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jsonData, err = relaycommon.ApplyParamOverrideWithRelayInfo(jsonData, info)
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if err != nil {
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return newAPIErrorFromParamOverride(err)
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}
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}
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logger.LogDebug(c, "requestBody: %s", jsonData)
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body, closer, err := relaycommon.NewOutboundJSONBody(jsonData)
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if err != nil {
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return types.NewError(err, types.ErrorCodeConvertRequestFailed, types.ErrOptionWithSkipRetry())
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}
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defer closer.Close()
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jsonData = nil
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requestBody = body
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}
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statusCodeMappingStr := c.GetString("status_code_mapping")
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var httpResp *http.Response
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resp, err := adaptor.DoRequest(c, info, requestBody)
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if err != nil {
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return types.NewOpenAIError(err, types.ErrorCodeDoRequestFailed, http.StatusInternalServerError)
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}
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if resp != nil {
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httpResp = resp.(*http.Response)
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info.IsStream = info.IsStream || strings.HasPrefix(httpResp.Header.Get("Content-Type"), "text/event-stream")
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if httpResp.StatusCode != http.StatusOK {
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newAPIError = service.RelayErrorHandler(c.Request.Context(), httpResp, false)
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// reset status code 重置状态码
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service.ResetStatusCode(newAPIError, statusCodeMappingStr)
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return newAPIError
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}
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}
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usage, newAPIError := adaptor.DoResponse(c, httpResp, info)
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if newAPIError != nil {
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// reset status code 重置状态码
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service.ResetStatusCode(newAPIError, statusCodeMappingStr)
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return newAPIError
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}
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service.PostTextConsumeQuota(c, info, usage.(*dto.Usage), nil)
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return nil
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}
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