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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 #ifndef REMOTING_HOST_SECURITY_KEY_REMOTE_SECURITY_KEY_MESSAGE_HANDLER_H_ | |
6 #define REMOTING_HOST_SECURITY_KEY_REMOTE_SECURITY_KEY_MESSAGE_HANDLER_H_ | |
7 | |
8 #include <memory> | |
9 #include <string> | |
10 | |
11 #include "base/callback.h" | |
12 #include "base/files/file.h" | |
13 #include "base/macros.h" | |
14 #include "base/threading/thread_checker.h" | |
15 #include "remoting/host/security_key/security_key_message.h" | |
16 | |
17 namespace remoting { | |
18 | |
19 class RemoteSecurityKeyIpcClient; | |
20 class RemoteSecurityKeyMessageReader; | |
21 class RemoteSecurityKeyMessageWriter; | |
22 | |
23 // Routes security key messages to the remote client and receives response from | |
24 // the remote client and forwards them to the local security key tools. | |
25 class RemoteSecurityKeyMessageHandler { | |
26 public: | |
27 RemoteSecurityKeyMessageHandler(); | |
28 ~RemoteSecurityKeyMessageHandler(); | |
29 | |
30 // Sets up the handler to begin receiving and processing messages. | |
31 void Start(base::File message_read_stream, | |
32 base::File message_write_stream, | |
33 std::unique_ptr<RemoteSecurityKeyIpcClient> ipc_client, | |
34 const base::Closure& error_callback); | |
35 | |
36 // Sets |reader_| to the instance passed in via |reader|. This method should | |
37 // be called before Start(). | |
38 void SetRemoteSecurityKeyMessageReaderForTest( | |
39 std::unique_ptr<RemoteSecurityKeyMessageReader> reader); | |
40 | |
41 // Sets |writer_| to the instance passed in via |writer|. This method should | |
42 // be called before Start(). | |
43 void SetRemoteSecurityKeyMessageWriterForTest( | |
44 std::unique_ptr<RemoteSecurityKeyMessageWriter> writer); | |
45 | |
46 private: | |
47 // RemoteSecurityKeyMessage handler. | |
48 void ProcessRemoteSecurityKeyMessage( | |
49 std::unique_ptr<SecurityKeyMessage> message); | |
50 | |
51 // Cleans up resources when an error occurs. | |
52 void OnError(); | |
53 | |
54 // Writes the passed in message data using |writer_|. | |
55 void SendMessage(RemoteSecurityKeyMessageType message_type); | |
56 void SendMessageWithPayload(RemoteSecurityKeyMessageType message_type, | |
57 const std::string& message_payload); | |
58 | |
59 // Used to respond to IPC connection changes. | |
60 void HandleIpcConnectionChange(bool connection_established); | |
61 | |
62 // Handles responses received from the remote client. | |
63 void HandleSecurityKeyResponse(const std::string& response_data); | |
64 | |
65 // Handles requests to establich a connection with the Chromoting host. | |
66 void HandleConnectRequest(const std::string& message_payload); | |
67 | |
68 // handles security key requests by forwrding them to the remote client. | |
69 void HandleSecurityKeyRequest(const std::string& message_payload); | |
70 | |
71 // Used to communicate with the remote security key. | |
72 std::unique_ptr<RemoteSecurityKeyIpcClient> ipc_client_; | |
73 | |
74 // Used to listen for security key messages. | |
75 std::unique_ptr<RemoteSecurityKeyMessageReader> reader_; | |
76 | |
77 // Used to write security key messages to local security key tools. | |
78 std::unique_ptr<RemoteSecurityKeyMessageWriter> writer_; | |
79 | |
80 // Signaled when an error occurs. | |
81 base::Closure error_callback_; | |
82 | |
83 base::ThreadChecker thread_checker_; | |
84 | |
85 DISALLOW_COPY_AND_ASSIGN(RemoteSecurityKeyMessageHandler); | |
86 }; | |
87 | |
88 } // namespace remoting | |
89 | |
90 #endif // REMOTING_HOST_SECURITY_KEY_REMOTE_SECURITY_KEY_MESSAGE_HANDLER_H_ | |
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