X-Git-Url: https://git.r.bdr.sh/rbdr/mobius/blobdiff_plain/22c599abc18895f73e96095f35b71cf3357d41b4..6ad7322a8c970de3e15c7815fc5c402cd3e24b2e:/hotline/file_transfer.go

diff --git a/hotline/file_transfer.go b/hotline/file_transfer.go
index 46b0061..ba4a1e1 100644
--- a/hotline/file_transfer.go
+++ b/hotline/file_transfer.go
@@ -1,6 +1,13 @@
 package hotline
 
-import "fmt"
+import (
+	"encoding/binary"
+	"fmt"
+	"math"
+	"math/rand"
+	"path/filepath"
+	"sync"
+)
 
 // File transfer types
 const (
@@ -8,22 +15,115 @@ const (
 	FileUpload     = 1
 	FolderDownload = 2
 	FolderUpload   = 3
+	bannerDownload = 4
 )
 
 type FileTransfer struct {
-	FileName        []byte
-	FilePath        []byte
-	ReferenceNumber []byte
-	Type            int
-	TransferSize    []byte // total size of all items in the folder. Only used in FolderUpload action
-	FolderItemCount []byte
-	BytesSent       int
-	clientID        uint16
+	FileName         []byte
+	FilePath         []byte
+	ReferenceNumber  []byte
+	refNum           [4]byte
+	Type             int
+	TransferSize     []byte
+	FolderItemCount  []byte
+	fileResumeData   *FileResumeData
+	options          []byte
+	bytesSentCounter *WriteCounter
+	ClientConn       *ClientConn
+}
+
+// WriteCounter counts the number of bytes written to it.
+type WriteCounter struct {
+	mux   sync.Mutex
+	Total int64 // Total # of bytes written
+}
+
+// Write implements the io.Writer interface.
+//
+// Always completes and never returns an error.
+func (wc *WriteCounter) Write(p []byte) (int, error) {
+	wc.mux.Lock()
+	defer wc.mux.Unlock()
+	n := len(p)
+	wc.Total += int64(n)
+	return n, nil
+}
+
+func (cc *ClientConn) newFileTransfer(transferType int, fileName, filePath, size []byte) *FileTransfer {
+	var transactionRef [4]byte
+	rand.Read(transactionRef[:])
+
+	ft := &FileTransfer{
+		FileName:         fileName,
+		FilePath:         filePath,
+		ReferenceNumber:  transactionRef[:],
+		refNum:           transactionRef,
+		Type:             transferType,
+		TransferSize:     size,
+		ClientConn:       cc,
+		bytesSentCounter: &WriteCounter{},
+	}
+
+	cc.transfersMU.Lock()
+	defer cc.transfersMU.Unlock()
+	cc.transfers[transferType][transactionRef] = ft
+
+	cc.Server.mux.Lock()
+	defer cc.Server.mux.Unlock()
+	cc.Server.fileTransfers[transactionRef] = ft
+
+	return ft
 }
 
+// String returns a string representation of a file transfer and its progress for display in the GetInfo window
+// Example:
+// MasterOfOrionII1.4.0. 0%   197.9M
 func (ft *FileTransfer) String() string {
-	percentComplete := 10
-	out := fmt.Sprintf("%s\t %v", ft.FileName, percentComplete)
+	trunc := fmt.Sprintf("%.21s", ft.FileName)
+	return fmt.Sprintf("%-21s %.3s%%  %6s\n", trunc, ft.percentComplete(), ft.formattedTransferSize())
+}
+
+func (ft *FileTransfer) percentComplete() string {
+	ft.bytesSentCounter.mux.Lock()
+	defer ft.bytesSentCounter.mux.Unlock()
+	return fmt.Sprintf(
+		"%v",
+		math.RoundToEven(float64(ft.bytesSentCounter.Total)/float64(binary.BigEndian.Uint32(ft.TransferSize))*100),
+	)
+}
+
+func (ft *FileTransfer) formattedTransferSize() string {
+	sizeInKB := float32(binary.BigEndian.Uint32(ft.TransferSize)) / 1024
+	if sizeInKB > 1024 {
+		return fmt.Sprintf("%.1fM", sizeInKB/1024)
+	} else {
+		return fmt.Sprintf("%.0fK", sizeInKB)
+	}
+}
+
+func (ft *FileTransfer) ItemCount() int {
+	return int(binary.BigEndian.Uint16(ft.FolderItemCount))
+}
+
+type folderUpload struct {
+	DataSize      [2]byte
+	IsFolder      [2]byte
+	PathItemCount [2]byte
+	FileNamePath  []byte
+}
+
+func (fu *folderUpload) FormattedPath() string {
+	pathItemLen := binary.BigEndian.Uint16(fu.PathItemCount[:])
+
+	var pathSegments []string
+	pathData := fu.FileNamePath
+
+	// TODO: implement scanner interface instead?
+	for i := uint16(0); i < pathItemLen; i++ {
+		segLen := pathData[2]
+		pathSegments = append(pathSegments, string(pathData[3:3+segLen]))
+		pathData = pathData[3+segLen:]
+	}
 
-	return out
+	return filepath.Join(pathSegments...)
 }