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nosqli
296
relay/channel/coze/relay-coze.go
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296
relay/channel/coze/relay-coze.go
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@@ -0,0 +1,296 @@
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package coze
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import (
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"bufio"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"net/http"
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"one-api/common"
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"one-api/dto"
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relaycommon "one-api/relay/common"
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"one-api/relay/helper"
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"one-api/service"
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"one-api/types"
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"strings"
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"github.com/gin-gonic/gin"
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)
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func convertCozeChatRequest(c *gin.Context, request dto.GeneralOpenAIRequest) *CozeChatRequest {
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var messages []CozeEnterMessage
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// 将 request的messages的role为user的content转换为CozeMessage
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for _, message := range request.Messages {
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if message.Role == "user" {
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messages = append(messages, CozeEnterMessage{
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Role: "user",
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Content: message.Content,
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// TODO: support more content type
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ContentType: "text",
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})
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}
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}
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user := request.User
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if user == "" {
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user = helper.GetResponseID(c)
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}
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cozeRequest := &CozeChatRequest{
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BotId: c.GetString("bot_id"),
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UserId: user,
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AdditionalMessages: messages,
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Stream: request.Stream,
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}
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return cozeRequest
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}
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func cozeChatHandler(c *gin.Context, info *relaycommon.RelayInfo, resp *http.Response) (*dto.Usage, *types.NewAPIError) {
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responseBody, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, types.NewError(err, types.ErrorCodeBadResponseBody)
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}
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common.CloseResponseBodyGracefully(resp)
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// convert coze response to openai response
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var response dto.TextResponse
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var cozeResponse CozeChatDetailResponse
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response.Model = info.UpstreamModelName
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err = json.Unmarshal(responseBody, &cozeResponse)
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if err != nil {
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return nil, types.NewError(err, types.ErrorCodeBadResponseBody)
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}
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if cozeResponse.Code != 0 {
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return nil, types.NewError(errors.New(cozeResponse.Msg), types.ErrorCodeBadResponseBody)
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}
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// 从上下文获取 usage
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var usage dto.Usage
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usage.PromptTokens = c.GetInt("coze_input_count")
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usage.CompletionTokens = c.GetInt("coze_output_count")
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usage.TotalTokens = c.GetInt("coze_token_count")
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response.Usage = usage
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response.Id = helper.GetResponseID(c)
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var responseContent json.RawMessage
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for _, data := range cozeResponse.Data {
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if data.Type == "answer" {
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responseContent = data.Content
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response.Created = data.CreatedAt
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}
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}
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// 添加 response.Choices
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response.Choices = []dto.OpenAITextResponseChoice{
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{
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Index: 0,
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Message: dto.Message{Role: "assistant", Content: responseContent},
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FinishReason: "stop",
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},
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}
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jsonResponse, err := json.Marshal(response)
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if err != nil {
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return nil, types.NewError(err, types.ErrorCodeBadResponseBody)
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}
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c.Writer.Header().Set("Content-Type", "application/json")
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c.Writer.WriteHeader(resp.StatusCode)
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_, _ = c.Writer.Write(jsonResponse)
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return &usage, nil
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}
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func cozeChatStreamHandler(c *gin.Context, info *relaycommon.RelayInfo, resp *http.Response) (*dto.Usage, *types.NewAPIError) {
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scanner := bufio.NewScanner(resp.Body)
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scanner.Split(bufio.ScanLines)
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helper.SetEventStreamHeaders(c)
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id := helper.GetResponseID(c)
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var responseText string
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var currentEvent string
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var currentData string
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var usage = &dto.Usage{}
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for scanner.Scan() {
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line := scanner.Text()
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if line == "" {
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if currentEvent != "" && currentData != "" {
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// handle last event
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handleCozeEvent(c, currentEvent, currentData, &responseText, usage, id, info)
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currentEvent = ""
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currentData = ""
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}
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continue
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}
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if strings.HasPrefix(line, "event:") {
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currentEvent = strings.TrimSpace(line[6:])
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continue
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}
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if strings.HasPrefix(line, "data:") {
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currentData = strings.TrimSpace(line[5:])
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continue
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}
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}
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// Last event
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if currentEvent != "" && currentData != "" {
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handleCozeEvent(c, currentEvent, currentData, &responseText, usage, id, info)
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}
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if err := scanner.Err(); err != nil {
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return nil, types.NewError(err, types.ErrorCodeBadResponseBody)
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}
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helper.Done(c)
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if usage.TotalTokens == 0 {
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usage = service.ResponseText2Usage(responseText, info.UpstreamModelName, c.GetInt("coze_input_count"))
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}
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return usage, nil
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}
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func handleCozeEvent(c *gin.Context, event string, data string, responseText *string, usage *dto.Usage, id string, info *relaycommon.RelayInfo) {
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switch event {
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case "conversation.chat.completed":
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// 将 data 解析为 CozeChatResponseData
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var chatData CozeChatResponseData
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err := json.Unmarshal([]byte(data), &chatData)
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if err != nil {
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common.SysError("error_unmarshalling_stream_response: " + err.Error())
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return
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}
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usage.PromptTokens = chatData.Usage.InputCount
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usage.CompletionTokens = chatData.Usage.OutputCount
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usage.TotalTokens = chatData.Usage.TokenCount
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finishReason := "stop"
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stopResponse := helper.GenerateStopResponse(id, common.GetTimestamp(), info.UpstreamModelName, finishReason)
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helper.ObjectData(c, stopResponse)
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case "conversation.message.delta":
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// 将 data 解析为 CozeChatV3MessageDetail
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var messageData CozeChatV3MessageDetail
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err := json.Unmarshal([]byte(data), &messageData)
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if err != nil {
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common.SysError("error_unmarshalling_stream_response: " + err.Error())
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return
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}
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var content string
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err = json.Unmarshal(messageData.Content, &content)
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if err != nil {
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common.SysError("error_unmarshalling_stream_response: " + err.Error())
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return
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}
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*responseText += content
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openaiResponse := dto.ChatCompletionsStreamResponse{
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Id: id,
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Object: "chat.completion.chunk",
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Created: common.GetTimestamp(),
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Model: info.UpstreamModelName,
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}
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choice := dto.ChatCompletionsStreamResponseChoice{
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Index: 0,
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}
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choice.Delta.SetContentString(content)
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openaiResponse.Choices = append(openaiResponse.Choices, choice)
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helper.ObjectData(c, openaiResponse)
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case "error":
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var errorData CozeError
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err := json.Unmarshal([]byte(data), &errorData)
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if err != nil {
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common.SysError("error_unmarshalling_stream_response: " + err.Error())
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return
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}
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common.SysError(fmt.Sprintf("stream event error: ", errorData.Code, errorData.Message))
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}
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}
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func checkIfChatComplete(a *Adaptor, c *gin.Context, info *relaycommon.RelayInfo) (error, bool) {
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requestURL := fmt.Sprintf("%s/v3/chat/retrieve", info.BaseUrl)
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requestURL = requestURL + "?conversation_id=" + c.GetString("coze_conversation_id") + "&chat_id=" + c.GetString("coze_chat_id")
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// 将 conversationId和chatId作为参数发送get请求
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req, err := http.NewRequest("GET", requestURL, nil)
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if err != nil {
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return err, false
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}
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err = a.SetupRequestHeader(c, &req.Header, info)
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if err != nil {
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return err, false
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}
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resp, err := doRequest(req, info) // 调用 doRequest
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if err != nil {
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return err, false
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}
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if resp == nil { // 确保在 doRequest 失败时 resp 不为 nil 导致 panic
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return fmt.Errorf("resp is nil"), false
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}
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defer resp.Body.Close() // 确保响应体被关闭
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// 解析 resp 到 CozeChatResponse
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var cozeResponse CozeChatResponse
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responseBody, err := io.ReadAll(resp.Body)
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if err != nil {
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return fmt.Errorf("read response body failed: %w", err), false
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}
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err = json.Unmarshal(responseBody, &cozeResponse)
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if err != nil {
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return fmt.Errorf("unmarshal response body failed: %w", err), false
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}
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if cozeResponse.Data.Status == "completed" {
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// 在上下文设置 usage
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c.Set("coze_token_count", cozeResponse.Data.Usage.TokenCount)
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c.Set("coze_output_count", cozeResponse.Data.Usage.OutputCount)
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c.Set("coze_input_count", cozeResponse.Data.Usage.InputCount)
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return nil, true
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} else if cozeResponse.Data.Status == "failed" || cozeResponse.Data.Status == "canceled" || cozeResponse.Data.Status == "requires_action" {
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return fmt.Errorf("chat status: %s", cozeResponse.Data.Status), false
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} else {
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return nil, false
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}
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}
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func getChatDetail(a *Adaptor, c *gin.Context, info *relaycommon.RelayInfo) (*http.Response, error) {
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requestURL := fmt.Sprintf("%s/v3/chat/message/list", info.BaseUrl)
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requestURL = requestURL + "?conversation_id=" + c.GetString("coze_conversation_id") + "&chat_id=" + c.GetString("coze_chat_id")
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req, err := http.NewRequest("GET", requestURL, nil)
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if err != nil {
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return nil, fmt.Errorf("new request failed: %w", err)
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}
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err = a.SetupRequestHeader(c, &req.Header, info)
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if err != nil {
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return nil, fmt.Errorf("setup request header failed: %w", err)
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}
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resp, err := doRequest(req, info)
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if err != nil {
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return nil, fmt.Errorf("do request failed: %w", err)
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}
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return resp, nil
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}
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func doRequest(req *http.Request, info *relaycommon.RelayInfo) (*http.Response, error) {
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var client *http.Client
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var err error // 声明 err 变量
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if info.ChannelSetting.Proxy != "" {
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client, err = service.NewProxyHttpClient(info.ChannelSetting.Proxy)
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if err != nil {
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return nil, fmt.Errorf("new proxy http client failed: %w", err)
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}
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} else {
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client = service.GetHttpClient()
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}
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resp, err := client.Do(req)
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if err != nil { // 增加对 client.Do(req) 返回错误的检查
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return nil, fmt.Errorf("client.Do failed: %w", err)
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}
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// _ = resp.Body.Close()
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return resp, nil
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}
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