feat: support vision

- Added new dependencies: `github.com/fsnotify/fsnotify v1.4.9`, `github.com/go-playground/assert/v2 v2.2.0`, `github.com/nxadm/tail v1.4.8`, `github.com/onsi/ginkgo v1.16.5`, `github.com/onsi/gomega v1.18.1`, `golang.org/x/net v0.10.0`, `gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7`
- Updated dependencies: `github.com/gin-gonic/gin` from v1.9.0 to v2.0.0, `golang.org/x/net` from v0.17.0 to v0.10.0
- Removed dependencies: `github.com/golang-jwt/jwt v3.2.2+incompatible`, `github.com/gorilla/websocket v1.5.1`
- Updated Go version from `1.18` to `1.21`
- Made various modifications and refactoring in the code:
  - Added new struct `VisionMessage` with fields `Role`, `Content`, and `Name`
  - Added constants for certain types
  - Added methods and error handling to handle different message types
  - Modified existing struct and methods to accommodate changes
  - Removed unused imports

controller/relay-aiproxy.go

@@ -4,12 +4,14 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
-	"github.com/gin-gonic/gin"
 	"io"
+	"log"
 	"net/http"
 	"one-api/common"
 	"strconv"
 	"strings"
+
+	"github.com/gin-gonic/gin"
 )
 
 // https://docs.aiproxy.io/dev/library#使用已经定制好的知识库进行对话问答
@@ -47,9 +49,27 @@ type AIProxyLibraryStreamResponse struct {
 
 func requestOpenAI2AIProxyLibrary(request GeneralOpenAIRequest) *AIProxyLibraryRequest {
 	query := ""
-	if len(request.Messages) != 0 {
-		query = request.Messages[len(request.Messages)-1].Content
+	if request.MessagesLen() != 0 {
+		switch msgs := request.Messages.(type) {
+		case []Message:
+			query = msgs[len(msgs)-1].Content
+		case []VisionMessage:
+			query = msgs[len(msgs)-1].Content.Text
+		case []any:
+			msg := msgs[len(msgs)-1]
+			switch msg := msg.(type) {
+			case Message:
+				query = msg.Content
+			case VisionMessage:
+				query = msg.Content.Text
+			default:
+				log.Panicf("unknown message type: %T", msg)
+			}
+		default:
+			log.Panicf("unknown message type: %T", msgs)
+		}
 	}
+
 	return &AIProxyLibraryRequest{
 		Model:  request.Model,
 		Stream: request.Stream,