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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/public/browser/browser_message_filter.h" | 5 #include "content/public/browser/browser_message_filter.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/bind_helpers.h" | 8 #include "base/bind_helpers.h" |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/process.h" | 10 #include "base/process.h" |
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46 // but it seems better to not allow sending synchronous messages from the | 46 // but it seems better to not allow sending synchronous messages from the |
47 // browser, since it might allow a corrupt/malicious renderer to hang us. | 47 // browser, since it might allow a corrupt/malicious renderer to hang us. |
48 NOTREACHED() << "Can't send sync message through BrowserMessageFilter!"; | 48 NOTREACHED() << "Can't send sync message through BrowserMessageFilter!"; |
49 return false; | 49 return false; |
50 } | 50 } |
51 | 51 |
52 if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) { | 52 if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) { |
53 BrowserThread::PostTask( | 53 BrowserThread::PostTask( |
54 BrowserThread::IO, | 54 BrowserThread::IO, |
55 FROM_HERE, | 55 FROM_HERE, |
56 base::IgnoreReturn<bool>( | 56 base::Bind(base::IgnoreResult(&BrowserMessageFilter::Send), this, |
57 base::Bind(&BrowserMessageFilter::Send, this, message))); | 57 message)); |
58 return true; | 58 return true; |
59 } | 59 } |
60 | 60 |
61 if (channel_) | 61 if (channel_) |
62 return channel_->Send(message); | 62 return channel_->Send(message); |
63 | 63 |
64 delete message; | 64 delete message; |
65 return false; | 65 return false; |
66 } | 66 } |
67 | 67 |
68 void BrowserMessageFilter::OverrideThreadForMessage(const IPC::Message& message, | 68 void BrowserMessageFilter::OverrideThreadForMessage(const IPC::Message& message, |
69 BrowserThread::ID* thread) { | 69 BrowserThread::ID* thread) { |
70 } | 70 } |
71 | 71 |
72 bool BrowserMessageFilter::OnMessageReceived(const IPC::Message& message) { | 72 bool BrowserMessageFilter::OnMessageReceived(const IPC::Message& message) { |
73 BrowserThread::ID thread = BrowserThread::IO; | 73 BrowserThread::ID thread = BrowserThread::IO; |
74 OverrideThreadForMessage(message, &thread); | 74 OverrideThreadForMessage(message, &thread); |
75 if (thread == BrowserThread::IO) | 75 if (thread == BrowserThread::IO) |
76 return DispatchMessage(message); | 76 return DispatchMessage(message); |
77 | 77 |
78 if (thread == BrowserThread::UI && !CheckCanDispatchOnUI(message, this)) | 78 if (thread == BrowserThread::UI && !CheckCanDispatchOnUI(message, this)) |
79 return true; | 79 return true; |
80 | 80 |
81 BrowserThread::PostTask( | 81 BrowserThread::PostTask( |
82 thread, FROM_HERE, | 82 thread, FROM_HERE, |
83 base::IgnoreReturn<bool>( | 83 base::Bind(base::IgnoreResult(&BrowserMessageFilter::DispatchMessage), |
84 base::Bind(&BrowserMessageFilter::DispatchMessage, this, message))); | 84 this, message)); |
85 return true; | 85 return true; |
86 } | 86 } |
87 | 87 |
88 bool BrowserMessageFilter::DispatchMessage(const IPC::Message& message) { | 88 bool BrowserMessageFilter::DispatchMessage(const IPC::Message& message) { |
89 bool message_was_ok = true; | 89 bool message_was_ok = true; |
90 bool rv = OnMessageReceived(message, &message_was_ok); | 90 bool rv = OnMessageReceived(message, &message_was_ok); |
91 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO) || rv) << | 91 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO) || rv) << |
92 "Must handle messages that were dispatched to another thread!"; | 92 "Must handle messages that were dispatched to another thread!"; |
93 if (!message_was_ok) { | 93 if (!message_was_ok) { |
94 content::RecordAction(UserMetricsAction("BadMessageTerminate_BMF")); | 94 content::RecordAction(UserMetricsAction("BadMessageTerminate_BMF")); |
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122 IPC::Message* reply = IPC::SyncMessage::GenerateReply(&message); | 122 IPC::Message* reply = IPC::SyncMessage::GenerateReply(&message); |
123 reply->set_reply_error(); | 123 reply->set_reply_error(); |
124 sender->Send(reply); | 124 sender->Send(reply); |
125 return false; | 125 return false; |
126 } | 126 } |
127 #endif | 127 #endif |
128 return true; | 128 return true; |
129 } | 129 } |
130 | 130 |
131 } // namespace content | 131 } // namespace content |
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