1 // Copyright (c) 2012 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 "extensions/browser/updater/safe_manifest_parser.h"
6
7 #include "base/bind.h"
8 #include "base/command_line.h"
9 #include "base/location.h"
10 #include "base/logging.h"
11 #include "content/public/browser/browser_thread.h"
12 #include "content/public/browser/utility_process_host.h"
13 #include "content/public/common/content_switches.h"
14 #include "extensions/common/extension_utility_messages.h"
15 #include "ipc/ipc_message_macros.h"
16
17 using content::BrowserThread;
18
19 namespace extensions {
20
SafeManifestParser(const std::string & xml,ManifestFetchData * fetch_data,const UpdateCallback & update_callback)21 SafeManifestParser::SafeManifestParser(const std::string& xml,
22 ManifestFetchData* fetch_data,
23 const UpdateCallback& update_callback)
24 : xml_(xml), fetch_data_(fetch_data), update_callback_(update_callback) {
25 DCHECK_CURRENTLY_ON(BrowserThread::UI);
26 }
27
Start()28 void SafeManifestParser::Start() {
29 DCHECK_CURRENTLY_ON(BrowserThread::UI);
30 if (!BrowserThread::PostTask(
31 BrowserThread::IO,
32 FROM_HERE,
33 base::Bind(&SafeManifestParser::ParseInSandbox, this))) {
34 NOTREACHED();
35 }
36 }
37
~SafeManifestParser()38 SafeManifestParser::~SafeManifestParser() {
39 // If we're using UtilityProcessHost, we may not be destroyed on
40 // the UI or IO thread.
41 }
42
ParseInSandbox()43 void SafeManifestParser::ParseInSandbox() {
44 DCHECK_CURRENTLY_ON(BrowserThread::IO);
45
46 content::UtilityProcessHost* host = content::UtilityProcessHost::Create(
47 this,
48 BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI).get());
49 host->Send(new ExtensionUtilityMsg_ParseUpdateManifest(xml_));
50 }
51
OnMessageReceived(const IPC::Message & message)52 bool SafeManifestParser::OnMessageReceived(const IPC::Message& message) {
53 bool handled = true;
54 IPC_BEGIN_MESSAGE_MAP(SafeManifestParser, message)
55 IPC_MESSAGE_HANDLER(ExtensionUtilityHostMsg_ParseUpdateManifest_Succeeded,
56 OnParseUpdateManifestSucceeded)
57 IPC_MESSAGE_HANDLER(ExtensionUtilityHostMsg_ParseUpdateManifest_Failed,
58 OnParseUpdateManifestFailed)
59 IPC_MESSAGE_UNHANDLED(handled = false)
60 IPC_END_MESSAGE_MAP()
61 return handled;
62 }
63
OnParseUpdateManifestSucceeded(const UpdateManifest::Results & results)64 void SafeManifestParser::OnParseUpdateManifestSucceeded(
65 const UpdateManifest::Results& results) {
66 VLOG(2) << "parsing manifest succeeded (" << fetch_data_->full_url() << ")";
67 DCHECK_CURRENTLY_ON(BrowserThread::UI);
68 update_callback_.Run(*fetch_data_, &results);
69 }
70
OnParseUpdateManifestFailed(const std::string & error_message)71 void SafeManifestParser::OnParseUpdateManifestFailed(
72 const std::string& error_message) {
73 VLOG(2) << "parsing manifest failed (" << fetch_data_->full_url() << ")";
74 DCHECK_CURRENTLY_ON(BrowserThread::UI);
75 LOG(WARNING) << "Error parsing update manifest:\n" << error_message;
76 update_callback_.Run(*fetch_data_, NULL);
77 }
78
79 } // namespace extensions
80