default
2ee4553b71
包含 webapp（Next.js 用户端）、webapp-back（Go 后端）、 antdesign（管理后台）、landingpage（营销落地页）、 数据库 SQL 和配置文件。
100 lines
2.4 KiB
Go
100 lines
2.4 KiB
Go
package admin
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import (
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"fmt"
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"net/http"
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"os"
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"path/filepath"
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"strings"
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"time"
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"github.com/gin-gonic/gin"
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)
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var allowedCategories = map[string]bool{
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"reports": true,
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"custody": true,
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"links": true,
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}
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var allowedExts = map[string]bool{
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".pdf": true,
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".png": true,
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".jpg": true,
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".jpeg": true,
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".doc": true,
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".docx": true,
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".txt": true,
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".xls": true,
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".xlsx": true,
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}
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// UploadFile handles multipart file uploads, saves to ./uploads/{category}/, returns accessible URL.
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// Query param: category (reports|custody), defaults to "reports".
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func UploadFile(c *gin.Context) {
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file, err := c.FormFile("file")
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if err != nil {
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Fail(c, http.StatusBadRequest, "No file provided")
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return
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}
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ext := strings.ToLower(filepath.Ext(file.Filename))
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if !allowedExts[ext] {
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Fail(c, http.StatusBadRequest, "File type not allowed")
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return
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}
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category := c.DefaultQuery("category", "reports")
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if !allowedCategories[category] {
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Fail(c, http.StatusBadRequest, "Invalid category")
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return
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}
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dir := "uploads/" + category
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if err := os.MkdirAll(dir, 0755); err != nil {
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Fail(c, http.StatusInternalServerError, "Failed to create upload directory")
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return
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}
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filename := fmt.Sprintf("%d_%s", time.Now().UnixNano(), filepath.Base(file.Filename))
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dst := filepath.Join(dir, filename)
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if err := c.SaveUploadedFile(file, dst); err != nil {
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Fail(c, http.StatusInternalServerError, "Failed to save file")
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return
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}
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url := "/uploads/" + category + "/" + filename
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OK(c, gin.H{"url": url})
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}
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// DeleteUploadedFile deletes a previously uploaded file by its URL path.
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func DeleteUploadedFile(c *gin.Context) {
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urlPath := c.Query("path") // e.g. /uploads/reports/xxx.pdf or /uploads/custody/xxx.pdf
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if !strings.HasPrefix(urlPath, "/uploads/") {
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Fail(c, http.StatusBadRequest, "Invalid file path")
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return
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}
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if strings.Contains(urlPath, "..") {
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Fail(c, http.StatusBadRequest, "Invalid file path")
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return
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}
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// Verify the second segment is a known category
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parts := strings.SplitN(strings.TrimPrefix(urlPath, "/uploads/"), "/", 2)
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if len(parts) != 2 || !allowedCategories[parts[0]] {
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Fail(c, http.StatusBadRequest, "Invalid file path")
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return
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}
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localPath := strings.TrimPrefix(urlPath, "/")
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if err := os.Remove(localPath); err != nil {
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if os.IsNotExist(err) {
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OK(c, gin.H{"message": "file not found, skipped"})
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return
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}
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Fail(c, http.StatusInternalServerError, "Failed to delete file")
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return
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}
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OK(c, gin.H{"message": "deleted"})
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}
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