|
| 1 | +package client |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "net" |
| 6 | + "os" |
| 7 | + "path/filepath" |
| 8 | + "time" |
| 9 | + |
| 10 | + "github.com/fatedier/fft/pkg/msg" |
| 11 | + "github.com/fatedier/fft/pkg/receiver" |
| 12 | + "github.com/fatedier/fft/pkg/stream" |
| 13 | +) |
| 14 | + |
| 15 | +func (svc *Service) recvFile(id string, filePath string) error { |
| 16 | + isDir := false |
| 17 | + finfo, err := os.Stat(filePath) |
| 18 | + if err == nil && finfo.IsDir() { |
| 19 | + isDir = true |
| 20 | + } |
| 21 | + |
| 22 | + conn, err := net.Dial("tcp", svc.serverAddr) |
| 23 | + if err != nil { |
| 24 | + return err |
| 25 | + } |
| 26 | + defer conn.Close() |
| 27 | + |
| 28 | + msg.WriteMsg(conn, &msg.ReceiveFile{ |
| 29 | + ID: id, |
| 30 | + }) |
| 31 | + |
| 32 | + conn.SetReadDeadline(time.Now().Add(10 * time.Second)) |
| 33 | + raw, err := msg.ReadMsg(conn) |
| 34 | + if err != nil { |
| 35 | + return err |
| 36 | + } |
| 37 | + conn.SetReadDeadline(time.Time{}) |
| 38 | + |
| 39 | + m, ok := raw.(*msg.ReceiveFileResp) |
| 40 | + if !ok { |
| 41 | + return fmt.Errorf("get send file response format error") |
| 42 | + } |
| 43 | + if m.Error != "" { |
| 44 | + return fmt.Errorf(m.Error) |
| 45 | + } |
| 46 | + |
| 47 | + if len(m.Workers) == 0 { |
| 48 | + return fmt.Errorf("no available workers") |
| 49 | + } |
| 50 | + fmt.Printf("Recv filename: %s\n", m.Name) |
| 51 | + if svc.debugMode { |
| 52 | + fmt.Printf("Workers: %v\n", m.Workers) |
| 53 | + } |
| 54 | + |
| 55 | + realPath := filePath |
| 56 | + if isDir { |
| 57 | + realPath = filepath.Join(filePath, m.Name) |
| 58 | + } |
| 59 | + f, err := os.Create(realPath) |
| 60 | + if err != nil { |
| 61 | + return err |
| 62 | + } |
| 63 | + |
| 64 | + recv := receiver.NewReceiver(0, f) |
| 65 | + for _, worker := range m.Workers { |
| 66 | + addr := worker |
| 67 | + go newRecvStream(recv, id, addr, svc.debugMode) |
| 68 | + } |
| 69 | + recv.Run() |
| 70 | + return nil |
| 71 | +} |
| 72 | + |
| 73 | +func newRecvStream(recv *receiver.Receiver, id string, addr string, debugMode bool) { |
| 74 | + first := true |
| 75 | + for { |
| 76 | + if !first { |
| 77 | + time.Sleep(3 * time.Second) |
| 78 | + } else { |
| 79 | + first = false |
| 80 | + } |
| 81 | + |
| 82 | + conn, err := net.Dial("tcp", addr) |
| 83 | + if err != nil { |
| 84 | + log(debugMode, "[%s] %v", addr, err) |
| 85 | + return |
| 86 | + } |
| 87 | + |
| 88 | + msg.WriteMsg(conn, &msg.NewReceiveFileStream{ |
| 89 | + ID: id, |
| 90 | + }) |
| 91 | + |
| 92 | + conn.SetReadDeadline(time.Now().Add(10 * time.Second)) |
| 93 | + raw, err := msg.ReadMsg(conn) |
| 94 | + if err != nil { |
| 95 | + conn.Close() |
| 96 | + log(debugMode, "[%s] %v", addr, err) |
| 97 | + continue |
| 98 | + } |
| 99 | + conn.SetReadDeadline(time.Time{}) |
| 100 | + m, ok := raw.(*msg.NewReceiveFileStreamResp) |
| 101 | + if !ok { |
| 102 | + conn.Close() |
| 103 | + log(debugMode, "[%s] read NewReceiveFileStreamResp format error", addr) |
| 104 | + continue |
| 105 | + } |
| 106 | + |
| 107 | + if m.Error != "" { |
| 108 | + conn.Close() |
| 109 | + log(debugMode, "[%s] new recv file stream error: %s", addr, m.Error) |
| 110 | + continue |
| 111 | + } |
| 112 | + fmt.Printf("connect to worker [%s] success\n", addr) |
| 113 | + |
| 114 | + s := stream.NewFrameStream(conn) |
| 115 | + for { |
| 116 | + frame, err := s.ReadFrame() |
| 117 | + if err != nil { |
| 118 | + return |
| 119 | + } |
| 120 | + recv.RecvFrame(frame) |
| 121 | + } |
| 122 | + } |
| 123 | +} |
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