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
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
|
// Copyright 2015 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 "components/offline_pages/offline_page_model.h"
#include <algorithm>
#include "base/bind.h"
#include "base/files/file_util.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/sequenced_task_runner.h"
#include "components/offline_pages/offline_page_item.h"
#include "components/offline_pages/offline_page_metadata_store.h"
#include "url/gurl.h"
using ArchiverResult = offline_pages::OfflinePageArchiver::ArchiverResult;
using SavePageResult = offline_pages::OfflinePageModel::SavePageResult;
namespace offline_pages {
namespace {
SavePageResult ToSavePageResult(ArchiverResult archiver_result) {
SavePageResult result;
switch (archiver_result) {
case ArchiverResult::SUCCESSFULLY_CREATED:
result = SavePageResult::SUCCESS;
break;
case ArchiverResult::ERROR_DEVICE_FULL:
result = SavePageResult::DEVICE_FULL;
break;
case ArchiverResult::ERROR_CONTENT_UNAVAILABLE:
result = SavePageResult::CONTENT_UNAVAILABLE;
break;
case ArchiverResult::ERROR_ARCHIVE_CREATION_FAILED:
result = SavePageResult::ARCHIVE_CREATION_FAILED;
break;
case ArchiverResult::ERROR_CANCELED:
result = SavePageResult::CANCELLED;
break;
default:
NOTREACHED();
result = SavePageResult::CONTENT_UNAVAILABLE;
}
return result;
}
void DeleteArchiveFile(const base::FilePath& file_path, bool* success) {
DCHECK(success);
*success = base::DeleteFile(file_path, false);
}
} // namespace
OfflinePageModel::OfflinePageModel(
scoped_ptr<OfflinePageMetadataStore> store,
const scoped_refptr<base::SequencedTaskRunner>& task_runner)
: store_(store.Pass()),
is_loaded_(false),
task_runner_(task_runner),
weak_ptr_factory_(this) {
store_->Load(base::Bind(&OfflinePageModel::OnLoadDone,
weak_ptr_factory_.GetWeakPtr()));
}
OfflinePageModel::~OfflinePageModel() {
}
void OfflinePageModel::Shutdown() {
}
void OfflinePageModel::AddObserver(Observer* observer) {
observers_.AddObserver(observer);
}
void OfflinePageModel::RemoveObserver(Observer* observer) {
observers_.RemoveObserver(observer);
}
void OfflinePageModel::SavePage(const GURL& url,
int64 bookmark_id,
scoped_ptr<OfflinePageArchiver> archiver,
const SavePageCallback& callback) {
DCHECK(is_loaded_);
DCHECK(archiver.get());
archiver->CreateArchive(base::Bind(&OfflinePageModel::OnCreateArchiveDone,
weak_ptr_factory_.GetWeakPtr(), url,
bookmark_id, callback));
pending_archivers_.push_back(archiver.Pass());
}
void OfflinePageModel::DeletePageByBookmarkId(
int64 bookmark_id,
const DeletePageCallback& callback) {
DCHECK(is_loaded_);
for (const auto& page : offline_pages_) {
if (page.bookmark_id == bookmark_id) {
DeletePage(page, callback);
return;
}
}
callback.Run(DeletePageResult::NOT_FOUND);
}
void OfflinePageModel::DeletePage(const OfflinePageItem& offline_page,
const DeletePageCallback& callback) {
DCHECK(is_loaded_);
bool* success = new bool(false);
task_runner_->PostTaskAndReply(
FROM_HERE,
base::Bind(&DeleteArchiveFile,
offline_page.file_path,
success),
base::Bind(&OfflinePageModel::OnDeleteArchiverFileDone,
weak_ptr_factory_.GetWeakPtr(),
offline_page.url,
callback,
base::Owned(success)));
}
const std::vector<OfflinePageItem>& OfflinePageModel::GetAllPages() const {
DCHECK(is_loaded_);
return offline_pages_;
}
bool OfflinePageModel::GetPageByBookmarkId(
int64 bookmark_id,
OfflinePageItem* offline_page) const {
DCHECK(offline_page);
for (const auto& page : offline_pages_) {
if (page.bookmark_id == bookmark_id) {
*offline_page = page;
return true;
}
}
return false;
}
OfflinePageMetadataStore* OfflinePageModel::GetStoreForTesting() {
return store_.get();
}
void OfflinePageModel::OnCreateArchiveDone(const GURL& requested_url,
int64 bookmark_id,
const SavePageCallback& callback,
OfflinePageArchiver* archiver,
ArchiverResult archiver_result,
const GURL& url,
const base::FilePath& file_path,
int64 file_size) {
if (requested_url != url) {
DVLOG(1) << "Saved URL does not match requested URL.";
// TODO(fgorski): We have created an archive for a wrong URL. It should be
// deleted from here, once archiver has the right functionality.
InformSavePageDone(callback, SavePageResult::ARCHIVE_CREATION_FAILED);
DeletePendingArchiver(archiver);
return;
}
if (archiver_result != ArchiverResult::SUCCESSFULLY_CREATED) {
SavePageResult result = ToSavePageResult(archiver_result);
InformSavePageDone(callback, result);
DeletePendingArchiver(archiver);
return;
}
OfflinePageItem offline_page_item(url, bookmark_id, file_path, file_size,
base::Time::Now());
store_->AddOfflinePage(
offline_page_item,
base::Bind(&OfflinePageModel::OnAddOfflinePageDone,
weak_ptr_factory_.GetWeakPtr(), archiver, callback,
offline_page_item));
}
void OfflinePageModel::OnAddOfflinePageDone(OfflinePageArchiver* archiver,
const SavePageCallback& callback,
const OfflinePageItem& offline_page,
bool success) {
SavePageResult result;
if (success) {
offline_pages_.push_back(offline_page);
result = SavePageResult::SUCCESS;
} else {
result = SavePageResult::STORE_FAILURE;
}
InformSavePageDone(callback, result);
DeletePendingArchiver(archiver);
}
void OfflinePageModel::OnLoadDone(
bool success,
const std::vector<OfflinePageItem>& offline_pages) {
DCHECK(!is_loaded_);
is_loaded_ = true;
// TODO(fgorski): Report the UMA upon failure. Cache should probably start
// empty. See if we can do something about it.
if (success)
offline_pages_ = offline_pages;
FOR_EACH_OBSERVER(Observer, observers_, OfflinePageModelLoaded(this));
}
void OfflinePageModel::InformSavePageDone(const SavePageCallback& callback,
SavePageResult result) {
callback.Run(result);
}
void OfflinePageModel::DeletePendingArchiver(OfflinePageArchiver* archiver) {
pending_archivers_.erase(std::find(
pending_archivers_.begin(), pending_archivers_.end(), archiver));
}
void OfflinePageModel::OnDeleteArchiverFileDone(
const GURL& url,
const DeletePageCallback& callback,
const bool* success) {
DCHECK(success);
if (!*success) {
callback.Run(DeletePageResult::DEVICE_FAILURE);
return;
}
store_->RemoveOfflinePage(
url,
base::Bind(&OfflinePageModel::OnRemoveOfflinePageDone,
weak_ptr_factory_.GetWeakPtr(), url, callback));
}
void OfflinePageModel::OnRemoveOfflinePageDone(
const GURL& url,
const DeletePageCallback& callback,
bool success) {
// Delete the offline page from the in memory cache regardless of success in
// store.
for (auto iter = offline_pages_.begin();
iter != offline_pages_.end();
++iter) {
if (iter->url == url) {
offline_pages_.erase(iter);
break;
}
}
callback.Run(
success ? DeletePageResult::SUCCESS : DeletePageResult::STORE_FAILURE);
}
} // namespace offline_pages
|