mirror of
https://github.com/linux-do/new-api.git
synced 2025-09-17 16:06:38 +08:00
581 lines
19 KiB
Go
581 lines
19 KiB
Go
package openai
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import (
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"bufio"
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"bytes"
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"encoding/json"
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"fmt"
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"github.com/bytedance/gopkg/util/gopool"
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"github.com/gin-gonic/gin"
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"github.com/gorilla/websocket"
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"io"
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"log"
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"net/http"
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"one-api/common"
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"one-api/constant"
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"one-api/dto"
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relaycommon "one-api/relay/common"
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relayconstant "one-api/relay/constant"
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"one-api/service"
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"strings"
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"sync"
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"time"
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)
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func OaiStreamHandler(c *gin.Context, resp *http.Response, info *relaycommon.RelayInfo) (*dto.OpenAIErrorWithStatusCode, *dto.Usage) {
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containStreamUsage := false
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var responseId string
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var createAt int64 = 0
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var systemFingerprint string
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model := info.UpstreamModelName
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var responseTextBuilder strings.Builder
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var usage = &dto.Usage{}
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var streamItems []string // store stream items
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toolCount := 0
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scanner := bufio.NewScanner(resp.Body)
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scanner.Split(bufio.ScanLines)
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service.SetEventStreamHeaders(c)
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ticker := time.NewTicker(time.Duration(constant.StreamingTimeout) * time.Second)
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defer ticker.Stop()
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stopChan := make(chan bool)
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defer close(stopChan)
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var (
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lastStreamData string
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mu sync.Mutex
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)
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gopool.Go(func() {
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for scanner.Scan() {
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info.SetFirstResponseTime()
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ticker.Reset(time.Duration(constant.StreamingTimeout) * time.Second)
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data := scanner.Text()
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if len(data) < 6 { // ignore blank line or wrong format
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continue
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}
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if data[:6] != "data: " && data[:6] != "[DONE]" {
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continue
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}
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mu.Lock()
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data = data[6:]
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if !strings.HasPrefix(data, "[DONE]") {
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if lastStreamData != "" {
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err := service.StringData(c, lastStreamData)
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if err != nil {
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common.LogError(c, "streaming error: "+err.Error())
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}
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}
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lastStreamData = data
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streamItems = append(streamItems, data)
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}
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mu.Unlock()
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}
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common.SafeSendBool(stopChan, true)
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})
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select {
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case <-ticker.C:
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// 超时处理逻辑
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common.LogError(c, "streaming timeout")
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case <-stopChan:
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// 正常结束
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}
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shouldSendLastResp := true
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var lastStreamResponse dto.ChatCompletionsStreamResponse
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err := json.Unmarshal(common.StringToByteSlice(lastStreamData), &lastStreamResponse)
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if err == nil {
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responseId = lastStreamResponse.Id
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createAt = lastStreamResponse.Created
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systemFingerprint = lastStreamResponse.GetSystemFingerprint()
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model = lastStreamResponse.Model
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if service.ValidUsage(lastStreamResponse.Usage) {
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containStreamUsage = true
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usage = lastStreamResponse.Usage
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if !info.ShouldIncludeUsage {
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shouldSendLastResp = false
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}
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}
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}
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if shouldSendLastResp {
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service.StringData(c, lastStreamData)
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}
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// 计算token
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streamResp := "[" + strings.Join(streamItems, ",") + "]"
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switch info.RelayMode {
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case relayconstant.RelayModeChatCompletions:
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var streamResponses []dto.ChatCompletionsStreamResponse
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err := json.Unmarshal(common.StringToByteSlice(streamResp), &streamResponses)
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if err != nil {
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// 一次性解析失败，逐个解析
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common.SysError("error unmarshalling stream response: " + err.Error())
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for _, item := range streamItems {
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var streamResponse dto.ChatCompletionsStreamResponse
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err := json.Unmarshal(common.StringToByteSlice(item), &streamResponse)
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if err == nil {
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//if service.ValidUsage(streamResponse.Usage) {
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// usage = streamResponse.Usage
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//}
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for _, choice := range streamResponse.Choices {
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responseTextBuilder.WriteString(choice.Delta.GetContentString())
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if choice.Delta.ToolCalls != nil {
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if len(choice.Delta.ToolCalls) > toolCount {
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toolCount = len(choice.Delta.ToolCalls)
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}
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for _, tool := range choice.Delta.ToolCalls {
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responseTextBuilder.WriteString(tool.Function.Name)
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responseTextBuilder.WriteString(tool.Function.Arguments)
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}
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}
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}
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}
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}
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} else {
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for _, streamResponse := range streamResponses {
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//if service.ValidUsage(streamResponse.Usage) {
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// usage = streamResponse.Usage
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// containStreamUsage = true
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//}
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for _, choice := range streamResponse.Choices {
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responseTextBuilder.WriteString(choice.Delta.GetContentString())
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if choice.Delta.ToolCalls != nil {
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if len(choice.Delta.ToolCalls) > toolCount {
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toolCount = len(choice.Delta.ToolCalls)
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}
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for _, tool := range choice.Delta.ToolCalls {
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responseTextBuilder.WriteString(tool.Function.Name)
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responseTextBuilder.WriteString(tool.Function.Arguments)
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}
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}
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}
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}
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}
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case relayconstant.RelayModeCompletions:
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var streamResponses []dto.CompletionsStreamResponse
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err := json.Unmarshal(common.StringToByteSlice(streamResp), &streamResponses)
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if err != nil {
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// 一次性解析失败，逐个解析
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common.SysError("error unmarshalling stream response: " + err.Error())
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for _, item := range streamItems {
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var streamResponse dto.CompletionsStreamResponse
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err := json.Unmarshal(common.StringToByteSlice(item), &streamResponse)
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if err == nil {
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for _, choice := range streamResponse.Choices {
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responseTextBuilder.WriteString(choice.Text)
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}
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}
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}
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} else {
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for _, streamResponse := range streamResponses {
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for _, choice := range streamResponse.Choices {
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responseTextBuilder.WriteString(choice.Text)
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}
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}
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}
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}
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if !containStreamUsage {
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usage, _ = service.ResponseText2Usage(responseTextBuilder.String(), info.UpstreamModelName, info.PromptTokens)
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usage.CompletionTokens += toolCount * 7
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}
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if info.ShouldIncludeUsage && !containStreamUsage {
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response := service.GenerateFinalUsageResponse(responseId, createAt, model, *usage)
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response.SetSystemFingerprint(systemFingerprint)
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service.ObjectData(c, response)
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}
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service.Done(c)
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resp.Body.Close()
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return nil, usage
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}
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func OpenaiHandler(c *gin.Context, resp *http.Response, promptTokens int, model string) (*dto.OpenAIErrorWithStatusCode, *dto.Usage) {
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var simpleResponse dto.SimpleResponse
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responseBody, err := io.ReadAll(resp.Body)
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if err != nil {
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return service.OpenAIErrorWrapper(err, "read_response_body_failed", http.StatusInternalServerError), nil
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}
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err = resp.Body.Close()
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if err != nil {
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return service.OpenAIErrorWrapper(err, "close_response_body_failed", http.StatusInternalServerError), nil
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}
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err = json.Unmarshal(responseBody, &simpleResponse)
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if err != nil {
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return service.OpenAIErrorWrapper(err, "unmarshal_response_body_failed", http.StatusInternalServerError), nil
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}
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if simpleResponse.Error.Type != "" {
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return &dto.OpenAIErrorWithStatusCode{
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Error: simpleResponse.Error,
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StatusCode: resp.StatusCode,
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}, nil
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}
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// Reset response body
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resp.Body = io.NopCloser(bytes.NewBuffer(responseBody))
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// We shouldn't set the header before we parse the response body, because the parse part may fail.
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// And then we will have to send an error response, but in this case, the header has already been set.
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// So the httpClient will be confused by the response.
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// For example, Postman will report error, and we cannot check the response at all.
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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 service.OpenAIErrorWrapper(err, "copy_response_body_failed", http.StatusInternalServerError), nil
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}
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resp.Body.Close()
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if simpleResponse.Usage.TotalTokens == 0 || (simpleResponse.Usage.PromptTokens == 0 && simpleResponse.Usage.CompletionTokens == 0) {
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completionTokens := 0
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for _, choice := range simpleResponse.Choices {
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ctkm, _ := service.CountTextToken(string(choice.Message.Content), model)
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completionTokens += ctkm
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}
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simpleResponse.Usage = dto.Usage{
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PromptTokens: promptTokens,
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CompletionTokens: completionTokens,
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TotalTokens: promptTokens + completionTokens,
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}
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}
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return nil, &simpleResponse.Usage
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}
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func OpenaiTTSHandler(c *gin.Context, resp *http.Response, info *relaycommon.RelayInfo) (*dto.OpenAIErrorWithStatusCode, *dto.Usage) {
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responseBody, err := io.ReadAll(resp.Body)
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if err != nil {
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return service.OpenAIErrorWrapper(err, "read_response_body_failed", http.StatusInternalServerError), nil
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}
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err = resp.Body.Close()
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if err != nil {
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return service.OpenAIErrorWrapper(err, "close_response_body_failed", http.StatusInternalServerError), nil
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}
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// Reset response body
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resp.Body = io.NopCloser(bytes.NewBuffer(responseBody))
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// We shouldn't set the header before we parse the response body, because the parse part may fail.
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// And then we will have to send an error response, but in this case, the header has already been set.
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// So the httpClient will be confused by the response.
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// For example, Postman will report error, and we cannot check the response at all.
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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 service.OpenAIErrorWrapper(err, "copy_response_body_failed", http.StatusInternalServerError), nil
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}
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err = resp.Body.Close()
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if err != nil {
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return service.OpenAIErrorWrapper(err, "close_response_body_failed", http.StatusInternalServerError), nil
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}
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usage := &dto.Usage{}
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usage.PromptTokens = info.PromptTokens
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usage.TotalTokens = info.PromptTokens
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return nil, usage
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}
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func OpenaiSTTHandler(c *gin.Context, resp *http.Response, info *relaycommon.RelayInfo, responseFormat string) (*dto.OpenAIErrorWithStatusCode, *dto.Usage) {
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var audioResp dto.AudioResponse
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responseBody, err := io.ReadAll(resp.Body)
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if err != nil {
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return service.OpenAIErrorWrapper(err, "read_response_body_failed", http.StatusInternalServerError), nil
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}
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err = resp.Body.Close()
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if err != nil {
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return service.OpenAIErrorWrapper(err, "close_response_body_failed", http.StatusInternalServerError), nil
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}
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err = json.Unmarshal(responseBody, &audioResp)
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if err != nil {
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return service.OpenAIErrorWrapper(err, "unmarshal_response_body_failed", http.StatusInternalServerError), nil
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}
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// Reset response body
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resp.Body = io.NopCloser(bytes.NewBuffer(responseBody))
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// We shouldn't set the header before we parse the response body, because the parse part may fail.
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// And then we will have to send an error response, but in this case, the header has already been set.
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// So the httpClient will be confused by the response.
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// For example, Postman will report error, and we cannot check the response at all.
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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 service.OpenAIErrorWrapper(err, "copy_response_body_failed", http.StatusInternalServerError), nil
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}
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resp.Body.Close()
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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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}
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usage := &dto.Usage{}
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usage.PromptTokens = info.PromptTokens
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usage.CompletionTokens, _ = service.CountTextToken(text, info.UpstreamModelName)
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usage.TotalTokens = usage.PromptTokens + usage.CompletionTokens
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return nil, usage
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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 dto.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 dto.AudioResponse
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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 OpenaiRealtimeHandler(c *gin.Context, info *relaycommon.RelayInfo) (*dto.OpenAIErrorWithStatusCode, *dto.RealtimeUsage) {
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info.IsStream = true
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clientConn := info.ClientWs
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targetConn := info.TargetWs
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clientClosed := make(chan struct{})
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targetClosed := make(chan struct{})
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sendChan := make(chan []byte, 100)
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receiveChan := make(chan []byte, 100)
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errChan := make(chan error, 2)
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usage := &dto.RealtimeUsage{}
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localUsage := &dto.RealtimeUsage{}
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sumUsage := &dto.RealtimeUsage{}
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gopool.Go(func() {
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for {
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select {
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case <-c.Done():
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return
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default:
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_, message, err := clientConn.ReadMessage()
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if err != nil {
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if !websocket.IsCloseError(err, websocket.CloseNormalClosure, websocket.CloseGoingAway) {
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errChan <- fmt.Errorf("error reading from client: %v", err)
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}
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close(clientClosed)
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return
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}
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realtimeEvent := &dto.RealtimeEvent{}
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err = json.Unmarshal(message, realtimeEvent)
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if err != nil {
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errChan <- fmt.Errorf("error unmarshalling message: %v", err)
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return
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}
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|
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if realtimeEvent.Type == dto.RealtimeEventTypeSessionUpdate {
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if realtimeEvent.Session != nil {
|
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if realtimeEvent.Session.Tools != nil {
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info.RealtimeTools = realtimeEvent.Session.Tools
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}
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}
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}
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textToken, audioToken, err := service.CountTokenRealtime(info, *realtimeEvent, info.UpstreamModelName)
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if err != nil {
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errChan <- fmt.Errorf("error counting text token: %v", err)
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return
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}
|
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log.Printf("type: %s, textToken: %d, audioToken: %d", realtimeEvent.Type, textToken, audioToken)
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localUsage.TotalTokens += textToken + audioToken
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localUsage.InputTokens += textToken
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localUsage.InputTokenDetails.TextTokens += textToken
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localUsage.InputTokenDetails.AudioTokens += audioToken
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|
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err = service.WssString(c, targetConn, string(message))
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if err != nil {
|
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errChan <- fmt.Errorf("error writing to target: %v", err)
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return
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}
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select {
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case sendChan <- message:
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default:
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}
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}
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}
|
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})
|
|
|
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gopool.Go(func() {
|
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for {
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select {
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case <-c.Done():
|
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return
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default:
|
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_, message, err := targetConn.ReadMessage()
|
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if err != nil {
|
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if !websocket.IsCloseError(err, websocket.CloseNormalClosure, websocket.CloseGoingAway) {
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errChan <- fmt.Errorf("error reading from target: %v", err)
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}
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close(targetClosed)
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return
|
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}
|
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info.SetFirstResponseTime()
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realtimeEvent := &dto.RealtimeEvent{}
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err = json.Unmarshal(message, realtimeEvent)
|
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if err != nil {
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errChan <- fmt.Errorf("error unmarshalling message: %v", err)
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return
|
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}
|
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|
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if realtimeEvent.Type == dto.RealtimeEventTypeResponseDone {
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realtimeUsage := realtimeEvent.Response.Usage
|
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if realtimeUsage != nil {
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usage.TotalTokens += realtimeUsage.TotalTokens
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usage.InputTokens += realtimeUsage.InputTokens
|
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usage.OutputTokens += realtimeUsage.OutputTokens
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usage.InputTokenDetails.AudioTokens += realtimeUsage.InputTokenDetails.AudioTokens
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usage.InputTokenDetails.CachedTokens += realtimeUsage.InputTokenDetails.CachedTokens
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usage.InputTokenDetails.TextTokens += realtimeUsage.InputTokenDetails.TextTokens
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usage.OutputTokenDetails.AudioTokens += realtimeUsage.OutputTokenDetails.AudioTokens
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usage.OutputTokenDetails.TextTokens += realtimeUsage.OutputTokenDetails.TextTokens
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err := preConsumeUsage(c, info, usage, sumUsage)
|
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if err != nil {
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errChan <- fmt.Errorf("error consume usage: %v", err)
|
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return
|
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}
|
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usage = &dto.RealtimeUsage{}
|
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} else {
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textToken, audioToken, err := service.CountTokenRealtime(info, *realtimeEvent, info.UpstreamModelName)
|
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if err != nil {
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errChan <- fmt.Errorf("error counting text token: %v", err)
|
|
return
|
|
}
|
|
log.Printf("type: %s, textToken: %d, audioToken: %d", realtimeEvent.Type, textToken, audioToken)
|
|
localUsage.TotalTokens += textToken + audioToken
|
|
info.IsFirstRequest = false
|
|
localUsage.InputTokens += textToken + audioToken
|
|
localUsage.InputTokenDetails.TextTokens += textToken
|
|
localUsage.InputTokenDetails.AudioTokens += audioToken
|
|
err = preConsumeUsage(c, info, localUsage, sumUsage)
|
|
if err != nil {
|
|
errChan <- fmt.Errorf("error consume usage: %v", err)
|
|
return
|
|
}
|
|
localUsage = &dto.RealtimeUsage{}
|
|
// print now usage
|
|
}
|
|
common.LogInfo(c, fmt.Sprintf("realtime streaming sumUsage: %v", sumUsage))
|
|
common.LogInfo(c, fmt.Sprintf("realtime streaming localUsage: %v", localUsage))
|
|
common.LogInfo(c, fmt.Sprintf("realtime streaming localUsage: %v", localUsage))
|
|
|
|
} else if realtimeEvent.Type == dto.RealtimeEventTypeSessionUpdated || realtimeEvent.Type == dto.RealtimeEventTypeSessionCreated {
|
|
realtimeSession := realtimeEvent.Session
|
|
if realtimeSession != nil {
|
|
// update audio format
|
|
info.InputAudioFormat = common.GetStringIfEmpty(realtimeSession.InputAudioFormat, info.InputAudioFormat)
|
|
info.OutputAudioFormat = common.GetStringIfEmpty(realtimeSession.OutputAudioFormat, info.OutputAudioFormat)
|
|
}
|
|
} else {
|
|
textToken, audioToken, err := service.CountTokenRealtime(info, *realtimeEvent, info.UpstreamModelName)
|
|
if err != nil {
|
|
errChan <- fmt.Errorf("error counting text token: %v", err)
|
|
return
|
|
}
|
|
log.Printf("type: %s, textToken: %d, audioToken: %d", realtimeEvent.Type, textToken, audioToken)
|
|
localUsage.TotalTokens += textToken + audioToken
|
|
localUsage.OutputTokens += textToken + audioToken
|
|
localUsage.OutputTokenDetails.TextTokens += textToken
|
|
localUsage.OutputTokenDetails.AudioTokens += audioToken
|
|
}
|
|
|
|
err = service.WssString(c, clientConn, string(message))
|
|
if err != nil {
|
|
errChan <- fmt.Errorf("error writing to client: %v", err)
|
|
return
|
|
}
|
|
|
|
select {
|
|
case receiveChan <- message:
|
|
default:
|
|
}
|
|
}
|
|
}
|
|
})
|
|
|
|
select {
|
|
case <-clientClosed:
|
|
case <-targetClosed:
|
|
case err := <-errChan:
|
|
//return service.OpenAIErrorWrapper(err, "realtime_error", http.StatusInternalServerError), nil
|
|
common.LogError(c, "realtime error: "+err.Error())
|
|
case <-c.Done():
|
|
}
|
|
|
|
if usage.TotalTokens != 0 {
|
|
_ = preConsumeUsage(c, info, usage, sumUsage)
|
|
}
|
|
|
|
if localUsage.TotalTokens != 0 {
|
|
_ = preConsumeUsage(c, info, localUsage, sumUsage)
|
|
}
|
|
|
|
// check usage total tokens, if 0, use local usage
|
|
|
|
return nil, sumUsage
|
|
}
|
|
|
|
func preConsumeUsage(ctx *gin.Context, info *relaycommon.RelayInfo, usage *dto.RealtimeUsage, totalUsage *dto.RealtimeUsage) error {
|
|
totalUsage.TotalTokens += usage.TotalTokens
|
|
totalUsage.InputTokens += usage.InputTokens
|
|
totalUsage.OutputTokens += usage.OutputTokens
|
|
totalUsage.InputTokenDetails.CachedTokens += usage.InputTokenDetails.CachedTokens
|
|
totalUsage.InputTokenDetails.TextTokens += usage.InputTokenDetails.TextTokens
|
|
totalUsage.InputTokenDetails.AudioTokens += usage.InputTokenDetails.AudioTokens
|
|
totalUsage.OutputTokenDetails.TextTokens += usage.OutputTokenDetails.TextTokens
|
|
totalUsage.OutputTokenDetails.AudioTokens += usage.OutputTokenDetails.AudioTokens
|
|
// clear usage
|
|
err := service.PreWssConsumeQuota(ctx, info, usage)
|
|
return err
|
|
}
|