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172 lines
4.7 KiB
172 lines
4.7 KiB
/*
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* GodoOS - A lightweight cloud desktop
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* Copyright (C) 2024 https://godoos.com
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package localchat
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import (
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"encoding/json"
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"fmt"
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"godo/libs"
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"io"
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"log"
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"net/http"
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"os"
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"path/filepath"
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)
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// FileItem 表示文件或文件夹
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type FileItem struct {
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Path string `json:"path"`
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IsDir bool `json:"isDir"`
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Filename string `json:"filename"`
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WritePath string `json:"writePath"`
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}
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type FileList struct {
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Files []string `json:"fileList"`
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}
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func HandleGetFiles(w http.ResponseWriter, r *http.Request) {
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//log.Printf("=====Received request: %v", r)
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if r.Method != "POST" {
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http.Error(w, "Only POST method is allowed", http.StatusMethodNotAllowed)
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return
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}
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var fileList FileList
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err := json.NewDecoder(r.Body).Decode(&fileList)
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if err != nil {
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http.Error(w, "Invalid request body", http.StatusBadRequest)
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return
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}
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//log.Printf("=====Received file list: %v", fileList)
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defer r.Body.Close()
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baseDir, err := libs.GetOsDir()
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if err != nil {
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log.Printf("Failed to get OS directory: %v", err)
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http.Error(w, "Failed to get OS directory", http.StatusInternalServerError)
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return
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}
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// 用于存储文件列表
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var files []FileItem
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for _, filePath := range fileList.Files {
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fp := filepath.Join(baseDir, filePath)
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fileInfo, err := os.Stat(fp)
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if err != nil {
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http.Error(w, fmt.Sprintf("Failed to stat file: %v", err), http.StatusInternalServerError)
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return
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}
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//writePath := calculateWritePath(fp, baseDir)
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if fileInfo.IsDir() {
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if err := walkDirectory(fp, &files, filepath.Base(fp)); err != nil {
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http.Error(w, fmt.Sprintf("Failed to serve directory: %v", err), http.StatusInternalServerError)
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return
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}
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} else {
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files = append(files, FileItem{
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Path: fp,
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IsDir: false,
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Filename: filepath.Base(fp),
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WritePath: "",
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})
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}
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}
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// 将文件列表编码为 JSON 并返回
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jsonData, err := json.Marshal(files)
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if err != nil {
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http.Error(w, "Failed to marshal file list", http.StatusInternalServerError)
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return
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}
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log.Printf("Sending file list: %v", string(jsonData))
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w.Header().Set("Content-Type", "application/json")
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w.Write(jsonData)
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}
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func walkDirectory(rootPath string, files *[]FileItem, writePath string) error {
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return filepath.Walk(rootPath, func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return fmt.Errorf("failed to walk directory: %v", err)
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}
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isDir := info.IsDir()
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relativePath, err := filepath.Rel(rootPath, path)
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if err != nil {
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log.Printf("Failed to calculate relative path: %v", err)
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return fmt.Errorf("failed to calculate relative path")
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}
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currentWritePath := filepath.Join(writePath, filepath.Base(relativePath))
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if !isDir {
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currentWritePath = filepath.Join(writePath, filepath.Dir(relativePath))
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}
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*files = append(*files, FileItem{
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Path: path,
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IsDir: isDir,
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Filename: filepath.Base(path),
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WritePath: currentWritePath,
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})
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return nil
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})
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}
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func HandleServeFile(w http.ResponseWriter, r *http.Request) {
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// 从 URL 中获取 filePath 参数
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filePath := r.URL.Query().Get("path")
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if filePath == "" {
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http.Error(w, "Missing filePath parameter", http.StatusBadRequest)
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return
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}
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fileInfo, err := os.Stat(filePath)
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if err != nil {
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http.Error(w, fmt.Sprintf("Failed to stat file: %v", err), http.StatusInternalServerError)
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return
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}
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if fileInfo.IsDir() {
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http.Error(w, "Cannot download a directory", http.StatusBadRequest)
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return
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}
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// 打开文件
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file, err := os.Open(filePath)
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if err != nil {
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http.Error(w, fmt.Sprintf("Failed to open file: %v", err), http.StatusInternalServerError)
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return
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}
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defer file.Close()
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// 设置响应头
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w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", fileInfo.Name()))
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w.Header().Set("Content-Type", "application/octet-stream")
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w.Header().Set("Content-Length", fmt.Sprintf("%d", fileInfo.Size()))
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// 复制文件内容到响应体
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_, err = io.Copy(w, file)
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if err != nil {
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http.Error(w, fmt.Sprintf("Failed to copy file content: %v", err), http.StatusInternalServerError)
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return
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}
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}
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