1 // Copyright 2011 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
12 // LiteralData represents an encrypted file. See RFC 4880, section 5.9.
13 type LiteralData struct {
16 Time uint32 // Unix epoch time. Either creation time or modification time. 0 means undefined.
20 // ForEyesOnly returns whether the contents of the LiteralData have been marked
21 // as especially sensitive.
22 func (l *LiteralData) ForEyesOnly() bool {
23 return l.FileName == "_CONSOLE"
26 func (l *LiteralData) parse(r io.Reader) (err error) {
29 _, err = readFull(r, buf[:2])
34 l.IsBinary = buf[0] == 'b'
35 fileNameLen := int(buf[1])
37 _, err = readFull(r, buf[:fileNameLen])
42 l.FileName = string(buf[:fileNameLen])
44 _, err = readFull(r, buf[:4])
49 l.Time = binary.BigEndian.Uint32(buf[:4])
54 // SerializeLiteral serializes a literal data packet to w and returns a
55 // WriteCloser to which the data itself can be written and which MUST be closed
56 // on completion. The fileName is truncated to 255 bytes.
57 func SerializeLiteral(w io.WriteCloser, isBinary bool, fileName string, time uint32) (plaintext io.WriteCloser, err error) {
63 if len(fileName) > 255 {
64 fileName = fileName[:255]
66 buf[1] = byte(len(fileName))
68 inner, err := serializeStreamHeader(w, packetTypeLiteralData)
73 _, err = inner.Write(buf[:2])
77 _, err = inner.Write([]byte(fileName))
81 binary.BigEndian.PutUint32(buf[:], time)
82 _, err = inner.Write(buf[:])