268 lines
8.7 KiB
Go
268 lines
8.7 KiB
Go
package controller
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import (
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"bufio"
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"bytes"
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"github.com/gin-gonic/gin"
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"github.com/songquanpeng/one-api/common"
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"github.com/songquanpeng/one-api/common/config"
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"github.com/songquanpeng/one-api/common/logger"
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"github.com/songquanpeng/one-api/model"
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"github.com/songquanpeng/one-api/relay/channel/openai"
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"github.com/songquanpeng/one-api/relay/constant"
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"github.com/songquanpeng/one-api/relay/util"
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"io"
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"net/http"
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"strings"
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)
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func RelayAudioHelper(c *gin.Context, relayMode int) *openai.ErrorWithStatusCode {
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audioModel := "whisper-1"
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tokenId := c.GetInt("token_id")
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channelType := c.GetInt("channel")
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channelId := c.GetInt("channel_id")
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userId := c.GetInt("id")
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group := c.GetString("group")
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tokenName := c.GetString("token_name")
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var ttsRequest openai.TextToSpeechRequest
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if relayMode == constant.RelayModeAudioSpeech {
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// Read JSON
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err := common.UnmarshalBodyReusable(c, &ttsRequest)
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// Check if JSON is valid
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if err != nil {
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return openai.ErrorWrapper(err, "invalid_json", http.StatusBadRequest)
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}
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audioModel = ttsRequest.Model
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// Check if text is too long 4096
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if len(ttsRequest.Input) > 4096 {
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return openai.ErrorWrapper(errors.New("input is too long (over 4096 characters)"), "text_too_long", http.StatusBadRequest)
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}
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}
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modelRatio := common.GetModelRatio(audioModel)
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groupRatio := common.GetGroupRatio(group)
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ratio := modelRatio * groupRatio
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var quota int
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var preConsumedQuota int
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switch relayMode {
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case constant.RelayModeAudioSpeech:
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preConsumedQuota = int(float64(len(ttsRequest.Input)) * ratio)
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quota = preConsumedQuota
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default:
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preConsumedQuota = int(float64(config.PreConsumedQuota) * ratio)
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}
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userQuota, err := model.CacheGetUserQuota(userId)
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if err != nil {
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return openai.ErrorWrapper(err, "get_user_quota_failed", http.StatusInternalServerError)
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}
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// Check if user quota is enough
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if userQuota-preConsumedQuota < 0 {
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return openai.ErrorWrapper(errors.New("user quota is not enough"), "insufficient_user_quota", http.StatusForbidden)
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}
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err = model.CacheDecreaseUserQuota(userId, preConsumedQuota)
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if err != nil {
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return openai.ErrorWrapper(err, "decrease_user_quota_failed", http.StatusInternalServerError)
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}
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if userQuota > 100*preConsumedQuota {
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// in this case, we do not pre-consume quota
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// because the user has enough quota
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preConsumedQuota = 0
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}
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if preConsumedQuota > 0 {
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err := model.PreConsumeTokenQuota(tokenId, preConsumedQuota)
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if err != nil {
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return openai.ErrorWrapper(err, "pre_consume_token_quota_failed", http.StatusForbidden)
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}
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}
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// map model name
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modelMapping := c.GetString("model_mapping")
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if modelMapping != "" {
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modelMap := make(map[string]string)
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err := json.Unmarshal([]byte(modelMapping), &modelMap)
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if err != nil {
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return openai.ErrorWrapper(err, "unmarshal_model_mapping_failed", http.StatusInternalServerError)
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}
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if modelMap[audioModel] != "" {
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audioModel = modelMap[audioModel]
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}
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}
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baseURL := common.ChannelBaseURLs[channelType]
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requestURL := c.Request.URL.String()
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if c.GetString("base_url") != "" {
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baseURL = c.GetString("base_url")
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}
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fullRequestURL := util.GetFullRequestURL(baseURL, requestURL, channelType)
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if relayMode == constant.RelayModeAudioTranscription && channelType == common.ChannelTypeAzure {
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// https://learn.microsoft.com/en-us/azure/ai-services/openai/whisper-quickstart?tabs=command-line#rest-api
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apiVersion := util.GetAzureAPIVersion(c)
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fullRequestURL = fmt.Sprintf("%s/openai/deployments/%s/audio/transcriptions?api-version=%s", baseURL, audioModel, apiVersion)
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}
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requestBody := &bytes.Buffer{}
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_, err = io.Copy(requestBody, c.Request.Body)
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if err != nil {
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return openai.ErrorWrapper(err, "new_request_body_failed", http.StatusInternalServerError)
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}
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c.Request.Body = io.NopCloser(bytes.NewBuffer(requestBody.Bytes()))
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responseFormat := c.DefaultPostForm("response_format", "json")
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req, err := http.NewRequest(c.Request.Method, fullRequestURL, requestBody)
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if err != nil {
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return openai.ErrorWrapper(err, "new_request_failed", http.StatusInternalServerError)
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}
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if relayMode == constant.RelayModeAudioTranscription && channelType == common.ChannelTypeAzure {
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// https://learn.microsoft.com/en-us/azure/ai-services/openai/whisper-quickstart?tabs=command-line#rest-api
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apiKey := c.Request.Header.Get("Authorization")
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apiKey = strings.TrimPrefix(apiKey, "Bearer ")
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req.Header.Set("api-key", apiKey)
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req.ContentLength = c.Request.ContentLength
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} else {
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req.Header.Set("Authorization", c.Request.Header.Get("Authorization"))
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}
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req.Header.Set("Content-Type", c.Request.Header.Get("Content-Type"))
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req.Header.Set("Accept", c.Request.Header.Get("Accept"))
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resp, err := util.HTTPClient.Do(req)
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if err != nil {
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return openai.ErrorWrapper(err, "do_request_failed", http.StatusInternalServerError)
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}
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err = req.Body.Close()
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if err != nil {
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return openai.ErrorWrapper(err, "close_request_body_failed", http.StatusInternalServerError)
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}
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err = c.Request.Body.Close()
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if err != nil {
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return openai.ErrorWrapper(err, "close_request_body_failed", http.StatusInternalServerError)
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}
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if relayMode != constant.RelayModeAudioSpeech {
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responseBody, err := io.ReadAll(resp.Body)
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if err != nil {
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return openai.ErrorWrapper(err, "read_response_body_failed", http.StatusInternalServerError)
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}
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err = resp.Body.Close()
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if err != nil {
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return openai.ErrorWrapper(err, "close_response_body_failed", http.StatusInternalServerError)
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}
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var openAIErr openai.SlimTextResponse
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if err = json.Unmarshal(responseBody, &openAIErr); err == nil {
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if openAIErr.Error.Message != "" {
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return openai.ErrorWrapper(fmt.Errorf("type %s, code %v, message %s", openAIErr.Error.Type, openAIErr.Error.Code, openAIErr.Error.Message), "request_error", http.StatusInternalServerError)
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}
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}
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var text string
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switch responseFormat {
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case "json":
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text, err = getTextFromJSON(responseBody)
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case "text":
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text, err = getTextFromText(responseBody)
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case "srt":
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text, err = getTextFromSRT(responseBody)
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case "verbose_json":
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text, err = getTextFromVerboseJSON(responseBody)
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case "vtt":
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text, err = getTextFromVTT(responseBody)
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default:
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return openai.ErrorWrapper(errors.New("unexpected_response_format"), "unexpected_response_format", http.StatusInternalServerError)
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}
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if err != nil {
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return openai.ErrorWrapper(err, "get_text_from_body_err", http.StatusInternalServerError)
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}
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quota = openai.CountTokenText(text, audioModel)
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resp.Body = io.NopCloser(bytes.NewBuffer(responseBody))
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}
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if resp.StatusCode != http.StatusOK {
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if preConsumedQuota > 0 {
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// we need to roll back the pre-consumed quota
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defer func(ctx context.Context) {
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go func() {
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// negative means add quota back for token & user
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err := model.PostConsumeTokenQuota(tokenId, -preConsumedQuota)
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if err != nil {
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logger.Error(ctx, fmt.Sprintf("error rollback pre-consumed quota: %s", err.Error()))
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}
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}()
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}(c.Request.Context())
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}
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return util.RelayErrorHandler(resp)
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}
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quotaDelta := quota - preConsumedQuota
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defer func(ctx context.Context) {
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go util.PostConsumeQuota(ctx, tokenId, quotaDelta, quota, userId, channelId, modelRatio, groupRatio, audioModel, tokenName)
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}(c.Request.Context())
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for k, v := range resp.Header {
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c.Writer.Header().Set(k, v[0])
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}
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c.Writer.WriteHeader(resp.StatusCode)
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_, err = io.Copy(c.Writer, resp.Body)
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if err != nil {
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return openai.ErrorWrapper(err, "copy_response_body_failed", http.StatusInternalServerError)
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}
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err = resp.Body.Close()
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if err != nil {
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return openai.ErrorWrapper(err, "close_response_body_failed", http.StatusInternalServerError)
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}
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return nil
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}
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func getTextFromVTT(body []byte) (string, error) {
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return getTextFromSRT(body)
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}
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func getTextFromVerboseJSON(body []byte) (string, error) {
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var whisperResponse openai.WhisperVerboseJSONResponse
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if err := json.Unmarshal(body, &whisperResponse); err != nil {
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return "", fmt.Errorf("unmarshal_response_body_failed err :%w", err)
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}
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return whisperResponse.Text, nil
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}
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func getTextFromSRT(body []byte) (string, error) {
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scanner := bufio.NewScanner(strings.NewReader(string(body)))
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var builder strings.Builder
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var textLine bool
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for scanner.Scan() {
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line := scanner.Text()
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if textLine {
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builder.WriteString(line)
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textLine = false
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continue
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} else if strings.Contains(line, "-->") {
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textLine = true
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continue
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}
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}
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if err := scanner.Err(); err != nil {
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return "", err
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}
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return builder.String(), nil
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}
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func getTextFromText(body []byte) (string, error) {
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return strings.TrimSuffix(string(body), "\n"), nil
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}
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func getTextFromJSON(body []byte) (string, error) {
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var whisperResponse openai.WhisperJSONResponse
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if err := json.Unmarshal(body, &whisperResponse); err != nil {
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return "", fmt.Errorf("unmarshal_response_body_failed err :%w", err)
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}
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return whisperResponse.Text, nil
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}
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