X-Git-Url: https://git.r.bdr.sh/rbdr/mobius/blobdiff_plain/85767504e4dc622c5ff469733e49c0cebcee57f1..bb1e98842e35b3affaf94971e78c86f8b9547928:/hotline/transfer.go

diff --git a/hotline/transfer.go b/hotline/transfer.go
index 703dae0..4e6f79f 100644
--- a/hotline/transfer.go
+++ b/hotline/transfer.go
@@ -1,6 +1,7 @@
 package hotline
 
 import (
+	"bufio"
 	"bytes"
 	"encoding/binary"
 	"errors"
@@ -28,9 +29,10 @@ func (tf *transfer) Write(b []byte) (int, error) {
 	return len(b), nil
 }
 
+const fileCopyBufSize = 524288 // 512k
 func receiveFile(conn io.Reader, targetFile io.Writer, resForkFile io.Writer) error {
 	ffhBuf := make([]byte, 24)
-	if _, err := conn.Read(ffhBuf); err != nil {
+	if _, err := io.ReadFull(conn, ffhBuf); err != nil {
 		return err
 	}
 
@@ -41,7 +43,7 @@ func receiveFile(conn io.Reader, targetFile io.Writer, resForkFile io.Writer) er
 	}
 
 	ffifhBuf := make([]byte, 16)
-	if _, err := conn.Read(ffifhBuf); err != nil {
+	if _, err := io.ReadFull(conn, ffifhBuf); err != nil {
 		return err
 	}
 
@@ -55,7 +57,7 @@ func receiveFile(conn io.Reader, targetFile io.Writer, resForkFile io.Writer) er
 
 	dataLen := binary.BigEndian.Uint32(ffifh.DataSize[:])
 	ffifBuf := make([]byte, dataLen)
-	if _, err := conn.Read(ffifBuf); err != nil {
+	if _, err := io.ReadFull(conn, ffifBuf); err != nil {
 		return err
 	}
 	if err := ffif.UnmarshalBinary(ffifBuf); err != nil {
@@ -64,7 +66,7 @@ func receiveFile(conn io.Reader, targetFile io.Writer, resForkFile io.Writer) er
 
 	var ffdfh FlatFileDataForkHeader
 	ffdfhBuf := make([]byte, 16)
-	if _, err := conn.Read(ffdfhBuf); err != nil {
+	if _, err := io.ReadFull(conn, ffdfhBuf); err != nil {
 		return err
 	}
 	err = binary.Read(bytes.NewReader(ffdfhBuf), binary.BigEndian, &ffdfh)
@@ -75,30 +77,41 @@ func receiveFile(conn io.Reader, targetFile io.Writer, resForkFile io.Writer) er
 	// this will be zero if the file only has a resource fork
 	fileSize := int(binary.BigEndian.Uint32(ffdfh.DataSize[:]))
 
-	// Copy N bytes from conn to upload file
-	_, err = io.CopyN(targetFile, conn, int64(fileSize))
+	bw := bufio.NewWriterSize(targetFile, fileCopyBufSize)
+	_, err = io.CopyN(bw, conn, int64(fileSize))
 	if err != nil {
 		return err
 	}
+	if err := bw.Flush(); err != nil {
+		return err
+	}
 
 	if ffh.ForkCount == [2]byte{0, 3} {
 		var resForkHeader FlatFileDataForkHeader
-		resForkBuf := make([]byte, 16)
+		if _, err := io.ReadFull(conn, resForkHeader.ForkType[:]); err != nil {
+			return err
+		}
 
-		if _, err := conn.Read(resForkBuf); err != nil {
+		if _, err := io.ReadFull(conn, resForkHeader.CompressionType[:]); err != nil {
 			return err
 		}
-		err = binary.Read(bytes.NewReader(resForkBuf), binary.BigEndian, &resForkHeader)
-		if err != nil {
+
+		if _, err := io.ReadFull(conn, resForkHeader.RSVD[:]); err != nil {
 			return err
 		}
 
-		fileSize = int(binary.BigEndian.Uint32(resForkHeader.DataSize[:]))
+		if _, err := io.ReadFull(conn, resForkHeader.DataSize[:]); err != nil {
+			return err
+		}
 
-		_, err = io.CopyN(resForkFile, conn, int64(fileSize))
+		bw = bufio.NewWriterSize(resForkFile, fileCopyBufSize)
+		_, err = io.CopyN(resForkFile, conn, int64(binary.BigEndian.Uint32(resForkHeader.DataSize[:])))
 		if err != nil {
 			return err
 		}
+		if err := bw.Flush(); err != nil {
+			return err
+		}
 	}
 	return nil
 }