初始化导入 new-api 源码

relay/image_handler.go

@@ -0,0 +1,146 @@
+package relay
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+
+	"github.com/QuantumNous/new-api/common"
+	"github.com/QuantumNous/new-api/constant"
+	"github.com/QuantumNous/new-api/dto"
+	"github.com/QuantumNous/new-api/logger"
+	relaycommon "github.com/QuantumNous/new-api/relay/common"
+	"github.com/QuantumNous/new-api/relay/helper"
+	"github.com/QuantumNous/new-api/service"
+	"github.com/QuantumNous/new-api/setting/model_setting"
+	"github.com/QuantumNous/new-api/types"
+
+	"github.com/gin-gonic/gin"
+)
+
+func ImageHelper(c *gin.Context, info *relaycommon.RelayInfo) (newAPIError *types.NewAPIError) {
+	info.InitChannelMeta(c)
+
+	imageReq, ok := info.Request.(*dto.ImageRequest)
+	if !ok {
+		return types.NewErrorWithStatusCode(fmt.Errorf("invalid request type, expected dto.ImageRequest, got %T", info.Request), types.ErrorCodeInvalidRequest, http.StatusBadRequest, types.ErrOptionWithSkipRetry())
+	}
+
+	request, err := common.DeepCopy(imageReq)
+	if err != nil {
+		return types.NewError(fmt.Errorf("failed to copy request to ImageRequest: %w", err), types.ErrorCodeInvalidRequest, types.ErrOptionWithSkipRetry())
+	}
+
+	err = helper.ModelMappedHelper(c, info, request)
+	if err != nil {
+		return types.NewError(err, types.ErrorCodeChannelModelMappedError, types.ErrOptionWithSkipRetry())
+	}
+
+	adaptor := GetAdaptor(info.ApiType)
+	if adaptor == nil {
+		return types.NewError(fmt.Errorf("invalid api type: %d", info.ApiType), types.ErrorCodeInvalidApiType, types.ErrOptionWithSkipRetry())
+	}
+	adaptor.Init(info)
+
+	var requestBody io.Reader
+
+	if model_setting.GetGlobalSettings().PassThroughRequestEnabled || info.ChannelSetting.PassThroughBodyEnabled {
+		storage, err := common.GetBodyStorage(c)
+		if err != nil {
+			return types.NewErrorWithStatusCode(err, types.ErrorCodeReadRequestBodyFailed, http.StatusBadRequest, types.ErrOptionWithSkipRetry())
+		}
+		requestBody = common.ReaderOnly(storage)
+	} else {
+		convertedRequest, err := adaptor.ConvertImageRequest(c, info, *request)
+		if err != nil {
+			return types.NewError(err, types.ErrorCodeConvertRequestFailed)
+		}
+		relaycommon.AppendRequestConversionFromRequest(info, convertedRequest)
+
+		switch convertedRequest.(type) {
+		case *bytes.Buffer:
+			requestBody = convertedRequest.(io.Reader)
+		default:
+			jsonData, err := common.Marshal(convertedRequest)
+			if err != nil {
+				return types.NewError(err, types.ErrorCodeConvertRequestFailed, types.ErrOptionWithSkipRetry())
+			}
+
+			// apply param override
+			if len(info.ParamOverride) > 0 {
+				jsonData, err = relaycommon.ApplyParamOverrideWithRelayInfo(jsonData, info)
+				if err != nil {
+					return newAPIErrorFromParamOverride(err)
+				}
+			}
+
+			if common.DebugEnabled {
+				logger.LogDebug(c, fmt.Sprintf("image request body: %s", string(jsonData)))
+			}
+			requestBody = bytes.NewBuffer(jsonData)
+		}
+	}
+
+	statusCodeMappingStr := c.GetString("status_code_mapping")
+
+	resp, err := adaptor.DoRequest(c, info, requestBody)
+	if err != nil {
+		return types.NewOpenAIError(err, types.ErrorCodeDoRequestFailed, http.StatusInternalServerError)
+	}
+	var httpResp *http.Response
+	if resp != nil {
+		httpResp = resp.(*http.Response)
+		info.IsStream = info.IsStream || strings.HasPrefix(httpResp.Header.Get("Content-Type"), "text/event-stream")
+		if httpResp.StatusCode != http.StatusOK {
+			if httpResp.StatusCode == http.StatusCreated && info.ApiType == constant.APITypeReplicate {
+				// replicate channel returns 201 Created when using Prefer: wait, treat it as success.
+				httpResp.StatusCode = http.StatusOK
+			} else {
+				newAPIError = service.RelayErrorHandler(c.Request.Context(), httpResp, false)
+				// reset status code 重置状态码
+				service.ResetStatusCode(newAPIError, statusCodeMappingStr)
+				return newAPIError
+			}
+		}
+	}
+
+	usage, newAPIError := adaptor.DoResponse(c, httpResp, info)
+	if newAPIError != nil {
+		// reset status code 重置状态码
+		service.ResetStatusCode(newAPIError, statusCodeMappingStr)
+		return newAPIError
+	}
+
+	imageN := uint(1)
+	if request.N != nil {
+		imageN = *request.N
+	}
+	if usage.(*dto.Usage).TotalTokens == 0 {
+		usage.(*dto.Usage).TotalTokens = int(imageN)
+	}
+	if usage.(*dto.Usage).PromptTokens == 0 {
+		usage.(*dto.Usage).PromptTokens = int(imageN)
+	}
+
+	quality := "standard"
+	if request.Quality == "hd" {
+		quality = "hd"
+	}
+
+	var logContent []string
+
+	if len(request.Size) > 0 {
+		logContent = append(logContent, fmt.Sprintf("大小 %s", request.Size))
+	}
+	if len(quality) > 0 {
+		logContent = append(logContent, fmt.Sprintf("品质 %s", quality))
+	}
+	if imageN > 0 {
+		logContent = append(logContent, fmt.Sprintf("生成数量 %d", imageN))
+	}
+
+	service.PostTextConsumeQuota(c, info, usage.(*dto.Usage), logContent)
+	return nil
+}