58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
package helper
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import (
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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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"one-api/dto"
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"one-api/relay/common"
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)
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func ModelMappedHelper(c *gin.Context, info *common.RelayInfo, request dto.Request) error {
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// map model name
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modelMapping := c.GetString("model_mapping")
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if modelMapping != "" && 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 fmt.Errorf("unmarshal_model_mapping_failed")
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}
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// 支持链式模型重定向，最终使用链尾的模型
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currentModel := info.OriginModelName
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visitedModels := map[string]bool{
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currentModel: true,
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}
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for {
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if mappedModel, exists := modelMap[currentModel]; exists && mappedModel != "" {
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// 模型重定向循环检测，避免无限循环
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if visitedModels[mappedModel] {
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if mappedModel == currentModel {
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if currentModel == info.OriginModelName {
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info.IsModelMapped = false
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return nil
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} else {
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info.IsModelMapped = true
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break
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}
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}
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return errors.New("model_mapping_contains_cycle")
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}
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visitedModels[mappedModel] = true
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currentModel = mappedModel
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info.IsModelMapped = true
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} else {
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break
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}
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}
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if info.IsModelMapped {
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info.UpstreamModelName = currentModel
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}
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}
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if request != nil {
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request.SetModelName(info.UpstreamModelName)
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}
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return nil
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}
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