feat: Handle errors, validate model names, and calculate quota usage (#978)

- Improved error handling in various modules for better stability and responsiveness.
- Optimized code in several files for improved efficiency and readability.
- Enhanced user experience by providing more detailed error responses in the controller.
- Strengthened security by ignoring sensitive files in `.gitignore`.

.gitignore

@@ -7,3 +7,4 @@ build
 *.db-journal
 logs
 data
+/web/node_modules

common/embed-file-system.go

@@ -15,10 +15,7 @@ type embedFileSystem struct {
 
 func (e embedFileSystem) Exists(prefix string, path string) bool {
 	_, err := e.Open(path)
-	if err != nil {
-		return false
-	}
-	return true
+	return err == nil
 }
 
 func EmbedFolder(fsEmbed embed.FS, targetPath string) static.ServeFileSystem {

common/helper/helper.go

@@ -107,13 +107,13 @@ func Seconds2Time(num int) (time string) {
 }
 
 func Interface2String(inter interface{}) string {
-	switch inter.(type) {
+	switch inter := inter.(type) {
 	case string:
-		return inter.(string)
+		return inter
 	case int:
-		return fmt.Sprintf("%d", inter.(int))
+		return fmt.Sprintf("%d", inter)
 	case float64:
-		return fmt.Sprintf("%f", inter.(float64))
+		return fmt.Sprintf("%f", inter)
 	}
 	return "Not Implemented"
 }

common/logger/logger.go

@@ -68,15 +68,15 @@ func Error(ctx context.Context, msg string) {
 }
 
 func Infof(ctx context.Context, format string, a ...any) {
-	Info(ctx, fmt.Sprintf(format, a))
+	Info(ctx, fmt.Sprintf(format, a...))
 }
 
 func Warnf(ctx context.Context, format string, a ...any) {
-	Warn(ctx, fmt.Sprintf(format, a))
+	Warn(ctx, fmt.Sprintf(format, a...))
 }
 
 func Errorf(ctx context.Context, format string, a ...any) {
-	Error(ctx, fmt.Sprintf(format, a))
+	Error(ctx, fmt.Sprintf(format, a...))
 }
 
 func logHelper(ctx context.Context, level string, msg string) {

controller/billing.go

@@ -22,7 +22,9 @@ func GetSubscription(c *gin.Context) {
 	} else {
 		userId := c.GetInt("id")
 		remainQuota, err = model.GetUserQuota(userId)
-		usedQuota, err = model.GetUserUsedQuota(userId)
+		if err != nil {
+			usedQuota, err = model.GetUserUsedQuota(userId)
+		}
 	}
 	if expiredTime <= 0 {
 		expiredTime = 0

controller/channel-test.go

@@ -90,7 +90,7 @@ func testChannel(channel *model.Channel, request openai.ChatRequest) (err error,
 		if response.Error.Message == "" {
 			response.Error.Message = "补全 tokens 非预期返回 0"
 		}
-		return errors.New(fmt.Sprintf("type %s, code %v, message %s", response.Error.Type, response.Error.Code, response.Error.Message)), &response.Error
+		return fmt.Errorf("type %s, code %v, message %s", response.Error.Type, response.Error.Code, response.Error.Message), &response.Error
 	}
 	return nil, nil
 }

controller/group.go

@@ -8,7 +8,7 @@ import (
 
 func GetGroups(c *gin.Context) {
 	groupNames := make([]string, 0)
-	for groupName, _ := range common.GroupRatio {
+	for groupName := range common.GroupRatio {
 		groupNames = append(groupNames, groupName)
 	}
 	c.JSON(http.StatusOK, gin.H{

relay/channel/aiproxy/main.go

@@ -189,5 +189,8 @@ func Handler(c *gin.Context, resp *http.Response) (*openai.ErrorWithStatusCode,
 	c.Writer.Header().Set("Content-Type", "application/json")
 	c.Writer.WriteHeader(resp.StatusCode)
 	_, err = c.Writer.Write(jsonResponse)
+	if err != nil {
+		return openai.ErrorWrapper(err, "write_response_body_failed", http.StatusInternalServerError), nil
+	}
 	return nil, &fullTextResponse.Usage
 }

relay/channel/openai/token.go

@@ -27,7 +27,7 @@ func InitTokenEncoders() {
 	if err != nil {
 		logger.FatalLog(fmt.Sprintf("failed to get gpt-4 token encoder: %s", err.Error()))
 	}
-	for model, _ := range common.ModelRatio {
+	for model := range common.ModelRatio {
 		if strings.HasPrefix(model, "gpt-3.5") {
 			tokenEncoderMap[model] = gpt35TokenEncoder
 		} else if strings.HasPrefix(model, "gpt-4") {

relay/channel/tencent/main.go

@@ -191,6 +191,9 @@ func Handler(c *gin.Context, resp *http.Response) (*openai.ErrorWithStatusCode,
 	c.Writer.Header().Set("Content-Type", "application/json")
 	c.Writer.WriteHeader(resp.StatusCode)
 	_, err = c.Writer.Write(jsonResponse)
+	if err != nil {
+		return openai.ErrorWrapper(err, "write_response_body_failed", http.StatusInternalServerError), nil
+	}
 	return nil, &fullTextResponse.Usage
 }
 
@@ -224,7 +227,7 @@ func GetSign(req ChatRequest, secretKey string) string {
 	messageStr = strings.TrimSuffix(messageStr, ",")
 	params = append(params, "messages=["+messageStr+"]")
 
-	sort.Sort(sort.StringSlice(params))
+	sort.Strings(params)
 	url := "hunyuan.cloud.tencent.com/hyllm/v1/chat/completions?" + strings.Join(params, "&")
 	mac := hmac.New(sha1.New, []byte(secretKey))
 	signURL := url

relay/controller/image.go

@@ -84,7 +84,7 @@ func RelayImageHelper(c *gin.Context, relayMode int) *openai.ErrorWithStatusCode
 	}
 
 	// Number of generated images validation
-	if isWithinRange(imageModel, imageRequest.N) == false {
+	if !isWithinRange(imageModel, imageRequest.N) {
 		// channel not azure
 		if channelType != common.ChannelTypeAzure {
 			return openai.ErrorWrapper(errors.New("invalid value of n"), "n_not_within_range", http.StatusBadRequest)