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Side by Side Diff: remoting/host/security_key/remote_security_key_message_writer_impl.cc

Issue 2162083003: Renaming Gnubby and RemoteSecurityKey files/classes/members (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Fixing a GYP build error Created 4 years, 5 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "remoting/host/security_key/remote_security_key_message_writer_impl.h"
6
7 #include <cstdint>
8 #include <string>
9 #include <utility>
10
11 #include "remoting/host/security_key/security_key_message.h"
12
13 namespace remoting {
14
15 RemoteSecurityKeyMessageWriterImpl::RemoteSecurityKeyMessageWriterImpl(
16 base::File output_file)
17 : output_stream_(std::move(output_file)) {}
18
19 RemoteSecurityKeyMessageWriterImpl::~RemoteSecurityKeyMessageWriterImpl() {}
20
21 bool RemoteSecurityKeyMessageWriterImpl::WriteMessage(
22 RemoteSecurityKeyMessageType message_type) {
23 return WriteMessageWithPayload(message_type, std::string());
24 }
25
26 bool RemoteSecurityKeyMessageWriterImpl::WriteMessageWithPayload(
27 RemoteSecurityKeyMessageType message_type,
28 const std::string& message_payload) {
29 if (write_failed_ || !output_stream_.IsValid()) {
30 return false;
31 }
32
33 int message_payload_size_bytes = message_payload.size();
34 uint32_t total_message_size_bytes =
35 SecurityKeyMessage::kMessageTypeSizeBytes + message_payload_size_bytes;
36 CHECK(SecurityKeyMessage::IsValidMessageSize(total_message_size_bytes));
37
38 // First we send the message header which is the length of the message_type
39 // and message_payload in bytes.
40 if (!WriteBytesToOutput(reinterpret_cast<char*>(&total_message_size_bytes),
41 SecurityKeyMessage::kHeaderSizeBytes)) {
42 LOG(ERROR) << "Failed to send message header.";
43 return false;
44 }
45
46 // Next we send the message_type.
47 if (!WriteBytesToOutput(reinterpret_cast<char*>(&message_type),
48 SecurityKeyMessage::kMessageTypeSizeBytes)) {
49 LOG(ERROR) << "Failed to send message type.";
50 return false;
51 }
52
53 // Lastly, send the message data if appropriate.
54 if (!message_payload.empty()) {
55 if (!WriteBytesToOutput(message_payload.data(),
56 message_payload_size_bytes)) {
57 LOG(ERROR) << "Failed to send message payload.";
58 return false;
59 }
60 }
61
62 return true;
63 }
64
65 bool RemoteSecurityKeyMessageWriterImpl::WriteBytesToOutput(
66 const char* message,
67 int bytes_to_write) {
68 DCHECK(message);
69 DCHECK_GT(bytes_to_write, 0);
70
71 int result = output_stream_.WriteAtCurrentPos(message, bytes_to_write);
72 if (result != bytes_to_write) {
73 LOG(ERROR) << "Failed to write all bytes to output stream. bytes written: "
74 << result << ", file error: "
75 << base::File::ErrorToString(output_stream_.error_details());
76 write_failed_ = true;
77 return false;
78 }
79
80 return true;
81 }
82
83 } // namespace remoting
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