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// MIT License
//
// Copyright (c) 2024 godoos.com
// Email: xpbb@qq.com
// GitHub: github.com/phpk/godoos
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package localchat
import (
"encoding/json"
"fmt"
"godo/libs"
"io"
"log"
"net/http"
"os"
"path/filepath"
)
// FileItem 表示文件或文件夹
type FileItem struct {
Path string `json:"path"`
IsDir bool `json:"isDir"`
Filename string `json:"filename"`
WritePath string `json:"writePath"`
}
type FileList struct {
Files []string `json:"fileList"`
}
func HandleGetFiles(w http.ResponseWriter, r *http.Request) {
//log.Printf("=====Received request: %v", r)
if r.Method != "POST" {
http.Error(w, "Only POST method is allowed", http.StatusMethodNotAllowed)
return
}
var fileList FileList
err := json.NewDecoder(r.Body).Decode(&fileList)
if err != nil {
http.Error(w, "Invalid request body", http.StatusBadRequest)
return
}
//log.Printf("=====Received file list: %v", fileList)
defer r.Body.Close()
baseDir, err := libs.GetOsDir()
if err != nil {
log.Printf("Failed to get OS directory: %v", err)
http.Error(w, "Failed to get OS directory", http.StatusInternalServerError)
return
}
// 用于存储文件列表
var files []FileItem
for _, filePath := range fileList.Files {
fp := filepath.Join(baseDir, filePath)
fileInfo, err := os.Stat(fp)
if err != nil {
http.Error(w, fmt.Sprintf("Failed to stat file: %v", err), http.StatusInternalServerError)
return
}
//writePath := calculateWritePath(fp, baseDir)
if fileInfo.IsDir() {
if err := walkDirectory(fp, &files, filepath.Base(fp)); err != nil {
http.Error(w, fmt.Sprintf("Failed to serve directory: %v", err), http.StatusInternalServerError)
return
}
} else {
files = append(files, FileItem{
Path: fp,
IsDir: false,
Filename: filepath.Base(fp),
WritePath: "",
})
}
}
// 将文件列表编码为 JSON 并返回
jsonData, err := json.Marshal(files)
if err != nil {
http.Error(w, "Failed to marshal file list", http.StatusInternalServerError)
return
}
log.Printf("Sending file list: %v", string(jsonData))
w.Header().Set("Content-Type", "application/json")
w.Write(jsonData)
}
func walkDirectory(rootPath string, files *[]FileItem, writePath string) error {
return filepath.Walk(rootPath, func(path string, info os.FileInfo, err error) error {
if err != nil {
return fmt.Errorf("failed to walk directory: %v", err)
}
isDir := info.IsDir()
relativePath, err := filepath.Rel(rootPath, path)
if err != nil {
log.Printf("Failed to calculate relative path: %v", err)
return fmt.Errorf("failed to calculate relative path")
}
currentWritePath := filepath.Join(writePath, filepath.Base(relativePath))
if !isDir {
currentWritePath = filepath.Join(writePath, filepath.Dir(relativePath))
}
*files = append(*files, FileItem{
Path: path,
IsDir: isDir,
Filename: filepath.Base(path),
WritePath: currentWritePath,
})
return nil
})
}
func HandleServeFile(w http.ResponseWriter, r *http.Request) {
// 从 URL 中获取 filePath 参数
filePath := r.URL.Query().Get("path")
if filePath == "" {
http.Error(w, "Missing filePath parameter", http.StatusBadRequest)
return
}
fileInfo, err := os.Stat(filePath)
if err != nil {
http.Error(w, fmt.Sprintf("Failed to stat file: %v", err), http.StatusInternalServerError)
return
}
if fileInfo.IsDir() {
http.Error(w, "Cannot download a directory", http.StatusBadRequest)
return
}
// 打开文件
file, err := os.Open(filePath)
if err != nil {
http.Error(w, fmt.Sprintf("Failed to open file: %v", err), http.StatusInternalServerError)
return
}
defer file.Close()
// 设置响应头
w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", fileInfo.Name()))
w.Header().Set("Content-Type", "application/octet-stream")
w.Header().Set("Content-Length", fmt.Sprintf("%d", fileInfo.Size()))
// 复制文件内容到响应体
_, err = io.Copy(w, file)
if err != nil {
http.Error(w, fmt.Sprintf("Failed to copy file content: %v", err), http.StatusInternalServerError)
return
}
}