|
|
@ -24,26 +24,18 @@ |
|
|
|
package localchat |
|
|
|
|
|
|
|
import ( |
|
|
|
"bytes" |
|
|
|
"encoding/json" |
|
|
|
"fmt" |
|
|
|
"godo/libs" |
|
|
|
"io" |
|
|
|
"log" |
|
|
|
"net/http" |
|
|
|
"os" |
|
|
|
"path/filepath" |
|
|
|
"time" |
|
|
|
) |
|
|
|
|
|
|
|
const ( |
|
|
|
GlobalfileSize = 768 // 每个数据包的大小
|
|
|
|
) |
|
|
|
|
|
|
|
type FileChunk struct { |
|
|
|
ChunkIndex int `json:"chunk_index"` |
|
|
|
Data []byte `json:"data"` |
|
|
|
Checksum uint32 `json:"checksum"` |
|
|
|
Timestamp time.Time `json:"timestamp"` |
|
|
|
Filename string `json:"filename"` |
|
|
|
Filesize int64 `json:"filesize"` |
|
|
|
} |
|
|
|
|
|
|
|
func HandlerApplySendFile(w http.ResponseWriter, r *http.Request) { |
|
|
|
var msg UdpMessage |
|
|
|
decoder := json.NewDecoder(r.Body) |
|
|
@ -106,216 +98,151 @@ func HandlerAccessFile(w http.ResponseWriter, r *http.Request) { |
|
|
|
} |
|
|
|
libs.SuccessMsg(w, msg.Message, "接收文件中") |
|
|
|
} |
|
|
|
|
|
|
|
func downloadFiles(msg UdpMessage) error { |
|
|
|
postUrl := fmt.Sprintf("http://%s:56780/localchat/getfiles", msg.IP) |
|
|
|
postData, err := json.Marshal(msg.Message) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to marshal post data: %v", err) |
|
|
|
} |
|
|
|
|
|
|
|
return nil |
|
|
|
} |
|
|
|
resp, err := http.Post(postUrl, "application/json", bytes.NewBuffer(postData)) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to make POST request: %v", err) |
|
|
|
} |
|
|
|
defer resp.Body.Close() |
|
|
|
if resp.StatusCode != http.StatusOK { |
|
|
|
body, _ := io.ReadAll(resp.Body) |
|
|
|
return fmt.Errorf("server returned status code: %v, body: %s", resp.StatusCode, body) |
|
|
|
} |
|
|
|
|
|
|
|
// func HandlerSendFile(msg UdpMessage) {
|
|
|
|
// toIp := msg.IP
|
|
|
|
// hostname, err := os.Hostname()
|
|
|
|
// if err != nil {
|
|
|
|
// log.Printf("HandleMessage error: %v", err)
|
|
|
|
// return
|
|
|
|
// }
|
|
|
|
// msg.Hostname = hostname
|
|
|
|
// msg.Time = time.Now()
|
|
|
|
// msg.Type = "file"
|
|
|
|
// basePath, err := libs.GetOsDir()
|
|
|
|
// if err != nil {
|
|
|
|
// log.Printf("GetOsDir error: %v", err)
|
|
|
|
// return
|
|
|
|
// }
|
|
|
|
// paths, ok := msg.Message.([]string)
|
|
|
|
// if !ok {
|
|
|
|
// log.Printf("invalid message type")
|
|
|
|
// return
|
|
|
|
// }
|
|
|
|
// for _, p := range paths {
|
|
|
|
// filePath := filepath.Join(basePath, p)
|
|
|
|
// // 处理单个文件或整个文件夹
|
|
|
|
// if fileInfo, err := os.Stat(filePath); err == nil {
|
|
|
|
// if fileInfo.IsDir() {
|
|
|
|
// handleDirectory(filePath, toIp, msg)
|
|
|
|
// } else {
|
|
|
|
// handleFile(filePath, toIp, msg)
|
|
|
|
// }
|
|
|
|
// } else {
|
|
|
|
// continue
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
// msg.Type = "fileSended"
|
|
|
|
// msg.Message = ""
|
|
|
|
// msg.Time = time.Now()
|
|
|
|
// SendToIP(msg)
|
|
|
|
// }
|
|
|
|
// 接收文件的目录
|
|
|
|
baseDir, err := libs.GetOsDir() |
|
|
|
if err != nil { |
|
|
|
log.Printf("Failed to get OS directory: %v", err) |
|
|
|
return fmt.Errorf("failed to get OS directory") |
|
|
|
} |
|
|
|
|
|
|
|
// func handleFile(filePath string, toIp string, message UdpMessage) {
|
|
|
|
// // 打开文件
|
|
|
|
// file, err := os.Open(filePath)
|
|
|
|
// if err != nil {
|
|
|
|
// log.Fatalf("Failed to open file: %v", err)
|
|
|
|
// }
|
|
|
|
// defer file.Close()
|
|
|
|
resPath := filepath.Join("C", "Users", "Reciv", time.Now().Format("2006-01-02")) |
|
|
|
receiveDir := filepath.Join(baseDir, resPath) |
|
|
|
if !libs.PathExists(receiveDir) { |
|
|
|
err := os.MkdirAll(receiveDir, 0755) |
|
|
|
if err != nil { |
|
|
|
log.Printf("Failed to create receive directory: %v", err) |
|
|
|
return fmt.Errorf("failed to create receive directory") |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
// // 获取文件大小
|
|
|
|
// fileInfo, err := file.Stat()
|
|
|
|
// if err != nil {
|
|
|
|
// log.Fatalf("Failed to get file info: %v", err)
|
|
|
|
// }
|
|
|
|
// fileSize := fileInfo.Size()
|
|
|
|
err = saveFiles(resp.Body, receiveDir) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to save files: %v", err) |
|
|
|
} |
|
|
|
|
|
|
|
// // 计算需要发送的数据包数量
|
|
|
|
// numChunks := fileSize / GlobalfileSize
|
|
|
|
// if fileSize%GlobalfileSize != 0 {
|
|
|
|
// numChunks++
|
|
|
|
// }
|
|
|
|
// // 发送文件
|
|
|
|
// SendFile(file, int(numChunks), toIp, fileSize, message)
|
|
|
|
// }
|
|
|
|
fmt.Println("Files downloaded successfully") |
|
|
|
return nil |
|
|
|
} |
|
|
|
|
|
|
|
// func handleDirectory(dirPath string, toIp string, message UdpMessage) {
|
|
|
|
// err := filepath.Walk(dirPath, func(path string, info os.FileInfo, err error) error {
|
|
|
|
// if err != nil {
|
|
|
|
// return err
|
|
|
|
// }
|
|
|
|
// if !info.IsDir() {
|
|
|
|
// handleFile(path, toIp, message)
|
|
|
|
// }
|
|
|
|
// return nil
|
|
|
|
// })
|
|
|
|
// if err != nil {
|
|
|
|
// log.Fatalf("Failed to walk directory: %v", err)
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
// func SendFile(file *os.File, numChunks int, toIp string, fSize int64, message UdpMessage) {
|
|
|
|
// var wg sync.WaitGroup
|
|
|
|
func saveFiles(reader io.Reader, saveDir string) error { |
|
|
|
body, err := io.ReadAll(reader) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to read response body: %v", err) |
|
|
|
} |
|
|
|
|
|
|
|
// // 逐块读取文件并发送
|
|
|
|
// for i := 0; i < numChunks; i++ {
|
|
|
|
// wg.Add(1)
|
|
|
|
// go func(index int) {
|
|
|
|
// defer wg.Done()
|
|
|
|
// idStr := message.Type + "@" + message.Hostname + "@" + filepath.Base(file.Name()) + "@" + fmt.Sprintf("%d", fSize) + "@"
|
|
|
|
// chunkData := make([]byte, GlobalfileSize)
|
|
|
|
// n, err := file.Read(chunkData[:])
|
|
|
|
// if err != nil && err != io.EOF {
|
|
|
|
// log.Fatalf("Failed to read file chunk: %v", err)
|
|
|
|
// }
|
|
|
|
// sendBinaryData(idStr, chunkData[:n], toIp)
|
|
|
|
// fmt.Printf("发送文件块 %d 到 %s 成功\n", index, toIp)
|
|
|
|
// }(i)
|
|
|
|
// }
|
|
|
|
var fileList FileList |
|
|
|
err = json.Unmarshal(body, &fileList) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to unmarshal file list: %v", err) |
|
|
|
} |
|
|
|
|
|
|
|
// wg.Wait()
|
|
|
|
// }
|
|
|
|
// func sendBinaryData(idStr string, data []byte, toIp string) {
|
|
|
|
// port := "56780"
|
|
|
|
// addr, err := net.ResolveUDPAddr("udp4", fmt.Sprintf("%s:%s", toIp, port))
|
|
|
|
// if err != nil {
|
|
|
|
// log.Fatalf("Failed to resolve UDP address: %v", err)
|
|
|
|
// }
|
|
|
|
for _, filePath := range fileList.Files { |
|
|
|
err := saveFileOrFolder(filePath, saveDir) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to serve file or folder: %v", err) |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
// conn, err := net.DialUDP("udp4", nil, addr)
|
|
|
|
// if err != nil {
|
|
|
|
// log.Fatalf("Failed to dial UDP address: %v", err)
|
|
|
|
// }
|
|
|
|
// defer conn.Close()
|
|
|
|
return nil |
|
|
|
} |
|
|
|
|
|
|
|
// // 添加长度前缀
|
|
|
|
// identifier := []byte(idStr)
|
|
|
|
// lengthPrefix := make([]byte, 4)
|
|
|
|
// binary.BigEndian.PutUint32(lengthPrefix, uint32(len(data)))
|
|
|
|
func saveFileOrFolder(filePath string, saveDir string) error { |
|
|
|
file, err := os.Open(filePath) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to open file or folder: %v", err) |
|
|
|
} |
|
|
|
defer file.Close() |
|
|
|
|
|
|
|
// // 发送长度前缀和数据
|
|
|
|
// _, err = conn.Write(append(append(identifier, lengthPrefix...), data...))
|
|
|
|
// if err != nil {
|
|
|
|
// log.Printf("Failed to write data: %v", err)
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
fileInfo, err := file.Stat() |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to stat file or folder: %v", err) |
|
|
|
} |
|
|
|
|
|
|
|
// var fileLocks = make(map[string]*sync.Mutex)
|
|
|
|
if fileInfo.IsDir() { |
|
|
|
return saveFolder(fileInfo.Name(), filePath, saveDir) |
|
|
|
} |
|
|
|
|
|
|
|
// func ReceiveFiles(parts []string) (string, error) {
|
|
|
|
// fileName := parts[2]
|
|
|
|
// fileSize, err := strconv.ParseInt(parts[3], 10, 64)
|
|
|
|
// if err != nil {
|
|
|
|
// return "", fmt.Errorf("failed to parse file size: %v", err)
|
|
|
|
// }
|
|
|
|
return saveFile(filePath, saveDir) |
|
|
|
} |
|
|
|
|
|
|
|
// // 创建接收文件的目录
|
|
|
|
// baseDir, err := libs.GetOsDir()
|
|
|
|
// if err != nil {
|
|
|
|
// log.Printf("Failed to get OS directory: %v", err)
|
|
|
|
// return "", fmt.Errorf("failed to get OS directory")
|
|
|
|
// }
|
|
|
|
func saveFolder(folderName string, folderPath string, saveDir string) error { |
|
|
|
localFolderPath := filepath.Join(saveDir, folderName) |
|
|
|
err := os.MkdirAll(localFolderPath, 0755) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to create directory: %v", err) |
|
|
|
} |
|
|
|
|
|
|
|
// resPath := filepath.Join("C", "Users", "Reciv", time.Now().Format("2006-01-02"))
|
|
|
|
// receiveDir := filepath.Join(baseDir, resPath)
|
|
|
|
// if !libs.PathExists(receiveDir) {
|
|
|
|
// err := os.MkdirAll(receiveDir, 0755)
|
|
|
|
// if err != nil {
|
|
|
|
// log.Printf("Failed to create receive directory: %v", err)
|
|
|
|
// return "", fmt.Errorf("failed to create receive directory")
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
files, err := os.ReadDir(folderPath) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to read directory: %v", err) |
|
|
|
} |
|
|
|
|
|
|
|
for _, file := range files { |
|
|
|
subPath := filepath.Join(folderPath, file.Name()) |
|
|
|
subSavePath := filepath.Join(localFolderPath, file.Name()) |
|
|
|
|
|
|
|
// // 确定文件路径
|
|
|
|
// filePath := filepath.Join(receiveDir, fileName)
|
|
|
|
if file.IsDir() { |
|
|
|
err := saveFolder(file.Name(), subPath, localFolderPath) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to save folder: %v", err) |
|
|
|
} |
|
|
|
} else { |
|
|
|
err := saveFile(subPath, subSavePath) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to save file: %v", err) |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
// // 如果文件不存在,则创建新文件
|
|
|
|
// if _, err := os.Stat(filePath); os.IsNotExist(err) {
|
|
|
|
// file, err := os.Create(filePath)
|
|
|
|
// if err != nil {
|
|
|
|
// log.Printf("Failed to create file: %v", err)
|
|
|
|
// return "", fmt.Errorf("failed to create file")
|
|
|
|
// }
|
|
|
|
// defer file.Close()
|
|
|
|
// }
|
|
|
|
return nil |
|
|
|
} |
|
|
|
|
|
|
|
// // 锁定文件
|
|
|
|
// lock, ok := fileLocks[fileName]
|
|
|
|
// if !ok {
|
|
|
|
// lock = &sync.Mutex{}
|
|
|
|
// fileLocks[fileName] = lock
|
|
|
|
// }
|
|
|
|
// lock.Lock()
|
|
|
|
// defer lock.Unlock()
|
|
|
|
func saveFile(filePath string, saveDir string) error { |
|
|
|
file, err := os.Open(filePath) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to open file: %v", err) |
|
|
|
} |
|
|
|
defer file.Close() |
|
|
|
|
|
|
|
// file, err := os.OpenFile(filePath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
|
|
|
|
// if err != nil {
|
|
|
|
// log.Printf("Failed to open file: %v", err)
|
|
|
|
// return "", fmt.Errorf("failed to open file")
|
|
|
|
// }
|
|
|
|
// defer file.Close()
|
|
|
|
fileInfo, err := file.Stat() |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to stat file: %v", err) |
|
|
|
} |
|
|
|
|
|
|
|
// // 提取实际数据
|
|
|
|
// data := strings.Join(parts[4:], "")
|
|
|
|
// if len(data) < 1 {
|
|
|
|
// return "", fmt.Errorf("empty data")
|
|
|
|
// }
|
|
|
|
localFilePath := filepath.Join(saveDir, fileInfo.Name()) |
|
|
|
err = os.MkdirAll(filepath.Dir(localFilePath), 0755) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to create directory: %v", err) |
|
|
|
} |
|
|
|
|
|
|
|
// n, err := file.Write([]byte(data))
|
|
|
|
// if err != nil {
|
|
|
|
// log.Printf("Failed to write data to file: %v", err)
|
|
|
|
// return "", fmt.Errorf("failed to write data to file")
|
|
|
|
// }
|
|
|
|
// if n != len(data) {
|
|
|
|
// log.Printf("Incomplete write: wrote %d bytes, expected %d bytes", n, len(data))
|
|
|
|
// return "", fmt.Errorf("incomplete write")
|
|
|
|
// }
|
|
|
|
out, err := os.Create(localFilePath) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to create file: %v", err) |
|
|
|
} |
|
|
|
defer out.Close() |
|
|
|
|
|
|
|
// fileInfo, err := os.Stat(filePath)
|
|
|
|
// if err != nil {
|
|
|
|
// log.Printf("Failed to stat file: %v", err)
|
|
|
|
// return "", fmt.Errorf("failed to stat file")
|
|
|
|
// }
|
|
|
|
_, err = io.Copy(out, file) |
|
|
|
if err != nil { |
|
|
|
return fmt.Errorf("failed to copy file: %v", err) |
|
|
|
} |
|
|
|
|
|
|
|
// if fileInfo.Size() == fileSize {
|
|
|
|
// fmt.Println("文件接收完成且大小一致")
|
|
|
|
// return filePath, nil
|
|
|
|
// } else {
|
|
|
|
// fmt.Printf("文件大小不一致,发送大小为%d,接收大小为%d\n", fileSize, fileInfo.Size())
|
|
|
|
// return "", fmt.Errorf("file size mismatch")
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
return nil |
|
|
|
} |
|
|
|