Add files via upload

internal/api/upload.go

@@ -0,0 +1,69 @@
+package api
+
+import (
+	"fmt"
+	"net/http"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"home-vue-go/internal/config"
+
+	"github.com/gin-gonic/gin"
+)
+
+var allowedImageExtensions = map[string]bool{
+	".jpg":  true,
+	".jpeg": true,
+	".png":  true,
+	".gif":  true,
+	".webp": true,
+	".avif": true,
+	".svg":  true,
+	".bmp":  true,
+	".ico":  true,
+}
+
+func UploadFile(cfg *config.Config) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		file, err := c.FormFile("file")
+		if err != nil {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "文件上传失败: " + err.Error()})
+			return
+		}
+
+		// 检查文件扩展名
+		ext := strings.ToLower(filepath.Ext(file.Filename))
+		if !allowedImageExtensions[ext] {
+			c.JSON(http.StatusBadRequest, gin.H{
+				"error": fmt.Sprintf("不支持的文件格式。支持的格式: %v", getKeys(allowedImageExtensions)),
+			})
+			return
+		}
+
+		// 生成唯一文件名
+		filename := fmt.Sprintf("%d%s", time.Now().UnixNano(), ext)
+		dst := filepath.Join(cfg.UploadDir, filename)
+
+		// 保存文件
+		if err := c.SaveUploadedFile(file, dst); err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "文件保存失败: " + err.Error()})
+			return
+		}
+
+		// 返回文件URL（相对于uploads目录）
+		fileURL := fmt.Sprintf("/uploads/%s", filename)
+		c.JSON(http.StatusOK, gin.H{
+			"url":  fileURL,
+			"path": fileURL,
+		})
+	}
+}
+
+func getKeys(m map[string]bool) []string {
+	keys := make([]string, 0, len(m))
+	for k := range m {
+		keys = append(keys, k)
+	}
+	return keys
+}