1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/media_galleries/fileapi/safe_iapps_library_parser.h"
#include <utility>
#include "build/build_config.h"
#include "chrome/browser/media_galleries/fileapi/media_file_system_backend.h"
#include "chrome/common/chrome_utility_messages.h"
#include "chrome/common/extensions/chrome_utility_extensions_messages.h"
#include "chrome/grit/generated_resources.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_data.h"
#include "ipc/ipc_platform_file.h"
#include "ui/base/l10n/l10n_util.h"
using content::BrowserThread;
using content::UtilityProcessHost;
namespace iapps {
SafeIAppsLibraryParser::SafeIAppsLibraryParser()
: parser_state_(INITIAL_STATE) {}
void SafeIAppsLibraryParser::ParseIPhotoLibrary(
const base::FilePath& library_file,
const IPhotoParserCallback& callback) {
library_file_path_ = library_file;
iphoto_callback_ = callback;
Start();
}
void SafeIAppsLibraryParser::ParseITunesLibrary(
const base::FilePath& library_file,
const ITunesParserCallback& callback) {
library_file_path_ = library_file;
itunes_callback_ = callback;
Start();
}
void SafeIAppsLibraryParser::Start() {
DCHECK(MediaFileSystemBackend::CurrentlyOnMediaTaskRunnerThread());
// |library_file_| will be closed on the IO thread once it has been handed
// off to the child process.
library_file_.Initialize(library_file_path_,
base::File::FLAG_OPEN | base::File::FLAG_READ);
if (!library_file_.IsValid()) {
VLOG(1) << "Could not open iApps library XML file: "
<< library_file_path_.value();
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(&SafeIAppsLibraryParser::OnOpenLibraryFileFailed, this));
return;
}
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(&SafeIAppsLibraryParser::StartProcessOnIOThread, this));
}
SafeIAppsLibraryParser::~SafeIAppsLibraryParser() {}
void SafeIAppsLibraryParser::StartProcessOnIOThread() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
DCHECK_EQ(INITIAL_STATE, parser_state_);
scoped_refptr<base::SingleThreadTaskRunner> task_runner =
BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
utility_process_host_ =
UtilityProcessHost::Create(this, task_runner.get())->AsWeakPtr();
utility_process_host_->SetName(l10n_util::GetStringUTF16(
IDS_UTILITY_PROCESS_MEDIA_LIBRARY_FILE_CHECKER_NAME));
// Wait for the startup notification before sending the main IPC to the
// utility process, so that we can dup the file handle.
utility_process_host_->Send(new ChromeUtilityMsg_StartupPing);
parser_state_ = PINGED_UTILITY_PROCESS_STATE;
}
void SafeIAppsLibraryParser::OnUtilityProcessStarted() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (parser_state_ != PINGED_UTILITY_PROCESS_STATE)
return;
if (utility_process_host_->GetData().handle == base::kNullProcessHandle) {
DLOG(ERROR) << "Child process handle is null";
OnError();
return;
}
if (!itunes_callback_.is_null()) {
utility_process_host_->Send(new ChromeUtilityMsg_ParseITunesLibraryXmlFile(
IPC::TakeFileHandleForProcess(
std::move(library_file_),
utility_process_host_->GetData().handle)));
} else if (!iphoto_callback_.is_null()) {
#if defined(OS_MACOSX)
utility_process_host_->Send(new ChromeUtilityMsg_ParseIPhotoLibraryXmlFile(
IPC::TakeFileHandleForProcess(
std::move(library_file_),
utility_process_host_->GetData().handle)));
#endif
}
parser_state_ = STARTED_PARSING_STATE;
}
#if defined(OS_MACOSX)
void SafeIAppsLibraryParser::OnGotIPhotoLibrary(
bool result, const iphoto::parser::Library& library) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
DCHECK(!iphoto_callback_.is_null());
if (parser_state_ != STARTED_PARSING_STATE)
return;
MediaFileSystemBackend::MediaTaskRunner()->PostTask(
FROM_HERE,
base::Bind(iphoto_callback_, result, library));
parser_state_ = FINISHED_PARSING_STATE;
}
#endif
void SafeIAppsLibraryParser::OnGotITunesLibrary(
bool result, const itunes::parser::Library& library) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
DCHECK(!itunes_callback_.is_null());
if (parser_state_ != STARTED_PARSING_STATE)
return;
MediaFileSystemBackend::MediaTaskRunner()->PostTask(
FROM_HERE,
base::Bind(itunes_callback_, result, library));
parser_state_ = FINISHED_PARSING_STATE;
}
void SafeIAppsLibraryParser::OnOpenLibraryFileFailed() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
OnError();
}
void SafeIAppsLibraryParser::OnProcessCrashed(int exit_code) {
OnError();
}
void SafeIAppsLibraryParser::OnError() {
parser_state_ = FINISHED_PARSING_STATE;
if (!itunes_callback_.is_null())
OnGotITunesLibrary(false /* failed */, itunes::parser::Library());
#if defined(OS_MACOSX)
if (!iphoto_callback_.is_null())
OnGotIPhotoLibrary(false /* failed */, iphoto::parser::Library());
#endif
}
bool SafeIAppsLibraryParser::OnMessageReceived(
const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(SafeIAppsLibraryParser, message)
IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ProcessStarted,
OnUtilityProcessStarted)
#if defined(OS_MACOSX)
IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_GotIPhotoLibrary,
OnGotIPhotoLibrary)
#endif
IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_GotITunesLibrary,
OnGotITunesLibrary)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
} // namespace iapps
|
