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Co-Authored-By: Claude <noreply@anthropic.com>

relay/channel/zhipu_4v/relay-zhipu_v4.go

@@ -0,0 +1,113 @@
+package zhipu_4v
+
+import (
+	"github.com/golang-jwt/jwt"
+	"one-api/common"
+	"one-api/dto"
+	"strings"
+	"sync"
+	"time"
+)
+
+// https://open.bigmodel.cn/doc/api#chatglm_std
+// chatglm_std, chatglm_lite
+// https://open.bigmodel.cn/api/paas/v3/model-api/chatglm_std/invoke
+// https://open.bigmodel.cn/api/paas/v3/model-api/chatglm_std/sse-invoke
+
+var zhipuTokens sync.Map
+var expSeconds int64 = 24 * 3600
+
+func getZhipuToken(apikey string) string {
+	data, ok := zhipuTokens.Load(apikey)
+	if ok {
+		tokenData := data.(tokenData)
+		if time.Now().Before(tokenData.ExpiryTime) {
+			return tokenData.Token
+		}
+	}
+
+	split := strings.Split(apikey, ".")
+	if len(split) != 2 {
+		common.SysError("invalid zhipu key: " + apikey)
+		return ""
+	}
+
+	id := split[0]
+	secret := split[1]
+
+	expMillis := time.Now().Add(time.Duration(expSeconds)*time.Second).UnixNano() / 1e6
+	expiryTime := time.Now().Add(time.Duration(expSeconds) * time.Second)
+
+	timestamp := time.Now().UnixNano() / 1e6
+
+	payload := jwt.MapClaims{
+		"api_key":   id,
+		"exp":       expMillis,
+		"timestamp": timestamp,
+	}
+
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, payload)
+
+	token.Header["alg"] = "HS256"
+	token.Header["sign_type"] = "SIGN"
+
+	tokenString, err := token.SignedString([]byte(secret))
+	if err != nil {
+		return ""
+	}
+
+	zhipuTokens.Store(apikey, tokenData{
+		Token:      tokenString,
+		ExpiryTime: expiryTime,
+	})
+
+	return tokenString
+}
+
+func requestOpenAI2Zhipu(request dto.GeneralOpenAIRequest) *dto.GeneralOpenAIRequest {
+	messages := make([]dto.Message, 0, len(request.Messages))
+	for _, message := range request.Messages {
+		if !message.IsStringContent() {
+			mediaMessages := message.ParseContent()
+			for j, mediaMessage := range mediaMessages {
+				if mediaMessage.Type == dto.ContentTypeImageURL {
+					imageUrl := mediaMessage.GetImageMedia()
+					// check if base64
+					if strings.HasPrefix(imageUrl.Url, "data:image/") {
+						// 去除base64数据的URL前缀（如果有）
+						if idx := strings.Index(imageUrl.Url, ","); idx != -1 {
+							imageUrl.Url = imageUrl.Url[idx+1:]
+						}
+					}
+					mediaMessage.ImageUrl = imageUrl
+					mediaMessages[j] = mediaMessage
+				}
+			}
+			message.SetMediaContent(mediaMessages)
+		}
+		messages = append(messages, dto.Message{
+			Role:       message.Role,
+			Content:    message.Content,
+			ToolCalls:  message.ToolCalls,
+			ToolCallId: message.ToolCallId,
+		})
+	}
+	str, ok := request.Stop.(string)
+	var Stop []string
+	if ok {
+		Stop = []string{str}
+	} else {
+		Stop, _ = request.Stop.([]string)
+	}
+	return &dto.GeneralOpenAIRequest{
+		Model:       request.Model,
+		Stream:      request.Stream,
+		Messages:    messages,
+		Temperature: request.Temperature,
+		TopP:        request.TopP,
+		MaxTokens:   request.MaxTokens,
+		Stop:        Stop,
+		Tools:       request.Tools,
+		ToolChoice:  request.ToolChoice,
+	}
+}