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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
// Copyright (c) 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/media_file_system_backend.h"
#include <string>
#include "base/bind.h"
#include "base/files/file_path.h"
#include "base/logging.h"
#include "base/message_loop/message_loop_proxy.h"
#include "base/platform_file.h"
#include "base/sequenced_task_runner.h"
#include "base/threading/sequenced_worker_pool.h"
#include "chrome/browser/media_galleries/fileapi/device_media_async_file_util.h"
#include "chrome/browser/media_galleries/fileapi/media_file_validator_factory.h"
#include "chrome/browser/media_galleries/fileapi/media_path_filter.h"
#include "chrome/browser/media_galleries/fileapi/native_media_file_util.h"
#include "content/public/browser/browser_thread.h"
#include "webkit/browser/blob/file_stream_reader.h"
#include "webkit/browser/fileapi/copy_or_move_file_validator.h"
#include "webkit/browser/fileapi/file_stream_writer.h"
#include "webkit/browser/fileapi/file_system_context.h"
#include "webkit/browser/fileapi/file_system_operation.h"
#include "webkit/browser/fileapi/file_system_operation_context.h"
#include "webkit/browser/fileapi/isolated_context.h"
#include "webkit/browser/fileapi/native_file_util.h"
#include "webkit/common/fileapi/file_system_types.h"
#include "webkit/common/fileapi/file_system_util.h"
#if defined(OS_WIN) || defined(OS_MACOSX)
#include "chrome/browser/media_galleries/fileapi/itunes_file_util.h"
#include "chrome/browser/media_galleries/fileapi/picasa_file_util.h"
#endif // defined(OS_WIN) || defined(OS_MACOSX)
#if defined(OS_MACOSX)
#include "chrome/browser/media_galleries/fileapi/iphoto_file_util.h"
#endif // defined(OS_MACOSX)
using fileapi::FileSystemContext;
using fileapi::FileSystemURL;
const char MediaFileSystemBackend::kMediaTaskRunnerName[] =
"media-task-runner";
MediaFileSystemBackend::MediaFileSystemBackend(
const base::FilePath& profile_path,
base::SequencedTaskRunner* media_task_runner)
: profile_path_(profile_path),
media_task_runner_(media_task_runner),
media_path_filter_(new MediaPathFilter),
media_copy_or_move_file_validator_factory_(new MediaFileValidatorFactory),
native_media_file_util_(
new NativeMediaFileUtil(media_path_filter_.get())),
device_media_async_file_util_(
DeviceMediaAsyncFileUtil::Create(profile_path_))
#if defined(OS_WIN) || defined(OS_MACOSX)
,
picasa_file_util_(new picasa::PicasaFileUtil(media_path_filter_.get())),
itunes_file_util_(new itunes::ITunesFileUtil(media_path_filter_.get()))
#endif // defined(OS_WIN) || defined(OS_MACOSX)
#if defined(OS_MACOSX)
,
iphoto_file_util_(new iphoto::IPhotoFileUtil(media_path_filter_.get()))
#endif // defined(OS_MACOSX)
{
}
MediaFileSystemBackend::~MediaFileSystemBackend() {
}
// static
bool MediaFileSystemBackend::CurrentlyOnMediaTaskRunnerThread() {
base::SequencedWorkerPool* pool = content::BrowserThread::GetBlockingPool();
base::SequencedWorkerPool::SequenceToken media_sequence_token =
pool->GetNamedSequenceToken(kMediaTaskRunnerName);
return pool->IsRunningSequenceOnCurrentThread(media_sequence_token);
}
// static
scoped_refptr<base::SequencedTaskRunner>
MediaFileSystemBackend::MediaTaskRunner() {
base::SequencedWorkerPool* pool = content::BrowserThread::GetBlockingPool();
base::SequencedWorkerPool::SequenceToken media_sequence_token =
pool->GetNamedSequenceToken(kMediaTaskRunnerName);
return pool->GetSequencedTaskRunner(media_sequence_token);
}
bool MediaFileSystemBackend::CanHandleType(
fileapi::FileSystemType type) const {
switch (type) {
case fileapi::kFileSystemTypeNativeMedia:
case fileapi::kFileSystemTypeDeviceMedia:
#if defined(OS_WIN) || defined(OS_MACOSX)
case fileapi::kFileSystemTypePicasa:
case fileapi::kFileSystemTypeItunes:
#endif // defined(OS_WIN) || defined(OS_MACOSX)
#if defined(OS_MACOSX)
case fileapi::kFileSystemTypeIphoto:
#endif // defined(OS_MACOSX)
return true;
default:
return false;
}
}
void MediaFileSystemBackend::Initialize(fileapi::FileSystemContext* context) {
}
void MediaFileSystemBackend::ResolveURL(
const FileSystemURL& url,
fileapi::OpenFileSystemMode mode,
const OpenFileSystemCallback& callback) {
// We never allow opening a new isolated FileSystem via usual ResolveURL.
base::MessageLoopProxy::current()->PostTask(
FROM_HERE,
base::Bind(callback,
GURL(),
std::string(),
base::File::FILE_ERROR_SECURITY));
}
fileapi::AsyncFileUtil* MediaFileSystemBackend::GetAsyncFileUtil(
fileapi::FileSystemType type) {
switch (type) {
case fileapi::kFileSystemTypeNativeMedia:
return native_media_file_util_.get();
case fileapi::kFileSystemTypeDeviceMedia:
return device_media_async_file_util_.get();
#if defined(OS_WIN) || defined(OS_MACOSX)
case fileapi::kFileSystemTypeItunes:
return itunes_file_util_.get();
case fileapi::kFileSystemTypePicasa:
return picasa_file_util_.get();
#endif // defined(OS_WIN) || defined(OS_MACOSX)
#if defined(OS_MACOSX)
case fileapi::kFileSystemTypeIphoto:
return iphoto_file_util_.get();
#endif // defined(OS_MACOSX)
default:
NOTREACHED();
}
return NULL;
}
fileapi::CopyOrMoveFileValidatorFactory*
MediaFileSystemBackend::GetCopyOrMoveFileValidatorFactory(
fileapi::FileSystemType type, base::File::Error* error_code) {
DCHECK(error_code);
*error_code = base::File::FILE_OK;
switch (type) {
case fileapi::kFileSystemTypeNativeMedia:
case fileapi::kFileSystemTypeDeviceMedia:
case fileapi::kFileSystemTypeIphoto:
case fileapi::kFileSystemTypeItunes:
if (!media_copy_or_move_file_validator_factory_) {
*error_code = base::File::FILE_ERROR_SECURITY;
return NULL;
}
return media_copy_or_move_file_validator_factory_.get();
default:
NOTREACHED();
}
return NULL;
}
fileapi::FileSystemOperation*
MediaFileSystemBackend::CreateFileSystemOperation(
const FileSystemURL& url,
FileSystemContext* context,
base::File::Error* error_code) const {
scoped_ptr<fileapi::FileSystemOperationContext> operation_context(
new fileapi::FileSystemOperationContext(
context, media_task_runner_.get()));
return fileapi::FileSystemOperation::Create(
url, context, operation_context.Pass());
}
bool MediaFileSystemBackend::SupportsStreaming(
const fileapi::FileSystemURL& url) const {
if (url.type() == fileapi::kFileSystemTypeDeviceMedia) {
DCHECK(device_media_async_file_util_);
return device_media_async_file_util_->SupportsStreaming(url);
}
return false;
}
scoped_ptr<webkit_blob::FileStreamReader>
MediaFileSystemBackend::CreateFileStreamReader(
const FileSystemURL& url,
int64 offset,
const base::Time& expected_modification_time,
FileSystemContext* context) const {
if (url.type() == fileapi::kFileSystemTypeDeviceMedia) {
DCHECK(device_media_async_file_util_);
scoped_ptr<webkit_blob::FileStreamReader> reader =
device_media_async_file_util_->GetFileStreamReader(
url, offset, expected_modification_time, context);
DCHECK(reader);
return reader.Pass();
}
return scoped_ptr<webkit_blob::FileStreamReader>(
webkit_blob::FileStreamReader::CreateForLocalFile(
context->default_file_task_runner(),
url.path(), offset, expected_modification_time));
}
scoped_ptr<fileapi::FileStreamWriter>
MediaFileSystemBackend::CreateFileStreamWriter(
const FileSystemURL& url,
int64 offset,
FileSystemContext* context) const {
return scoped_ptr<fileapi::FileStreamWriter>(
fileapi::FileStreamWriter::CreateForLocalFile(
context->default_file_task_runner(),
url.path(),
offset,
fileapi::FileStreamWriter::OPEN_EXISTING_FILE));
}
fileapi::FileSystemQuotaUtil*
MediaFileSystemBackend::GetQuotaUtil() {
// No quota support.
return NULL;
}
|
