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
|
// Copyright (c) 2012 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/browsing_data/browsing_data_file_system_helper.h"
#include <set>
#include "base/bind.h"
#include "base/location.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/sequenced_task_runner.h"
#include "chrome/browser/browsing_data/browsing_data_helper.h"
#include "content/public/browser/browser_thread.h"
#include "storage/browser/fileapi/file_system_context.h"
#include "storage/browser/fileapi/file_system_quota_util.h"
#include "storage/common/fileapi/file_system_types.h"
using content::BrowserThread;
namespace storage {
class FileSystemContext;
}
namespace {
// An implementation of the BrowsingDataFileSystemHelper interface that pulls
// data from a given |filesystem_context| and returns a list of FileSystemInfo
// items to a client.
class BrowsingDataFileSystemHelperImpl : public BrowsingDataFileSystemHelper {
public:
// BrowsingDataFileSystemHelper implementation
explicit BrowsingDataFileSystemHelperImpl(
storage::FileSystemContext* filesystem_context);
void StartFetching(const FetchCallback& callback) override;
void DeleteFileSystemOrigin(const GURL& origin) override;
private:
~BrowsingDataFileSystemHelperImpl() override;
// Enumerates all filesystem files, storing the resulting list into
// file_system_file_ for later use. This must be called on the file
// task runner.
void FetchFileSystemInfoInFileThread(const FetchCallback& callback);
// Deletes all file systems associated with |origin|. This must be called on
// the file task runner.
void DeleteFileSystemOriginInFileThread(const GURL& origin);
// Returns the file task runner for the |filesystem_context_|.
base::SequencedTaskRunner* file_task_runner() {
return filesystem_context_->default_file_task_runner();
}
// Keep a reference to the FileSystemContext object for the current profile
// for use on the file task runner.
scoped_refptr<storage::FileSystemContext> filesystem_context_;
DISALLOW_COPY_AND_ASSIGN(BrowsingDataFileSystemHelperImpl);
};
BrowsingDataFileSystemHelperImpl::BrowsingDataFileSystemHelperImpl(
storage::FileSystemContext* filesystem_context)
: filesystem_context_(filesystem_context) {
DCHECK(filesystem_context_.get());
}
BrowsingDataFileSystemHelperImpl::~BrowsingDataFileSystemHelperImpl() {
}
void BrowsingDataFileSystemHelperImpl::StartFetching(
const FetchCallback& callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!callback.is_null());
file_task_runner()->PostTask(
FROM_HERE,
base::Bind(
&BrowsingDataFileSystemHelperImpl::FetchFileSystemInfoInFileThread,
this, callback));
}
void BrowsingDataFileSystemHelperImpl::DeleteFileSystemOrigin(
const GURL& origin) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
file_task_runner()->PostTask(
FROM_HERE,
base::Bind(
&BrowsingDataFileSystemHelperImpl::DeleteFileSystemOriginInFileThread,
this, origin));
}
void BrowsingDataFileSystemHelperImpl::FetchFileSystemInfoInFileThread(
const FetchCallback& callback) {
DCHECK(file_task_runner()->RunsTasksOnCurrentThread());
DCHECK(!callback.is_null());
// We check usage for these filesystem types.
const storage::FileSystemType types[] = {
storage::kFileSystemTypeTemporary,
storage::kFileSystemTypePersistent,
#if defined(ENABLE_EXTENSIONS)
storage::kFileSystemTypeSyncable,
#endif
};
std::list<FileSystemInfo> result;
typedef std::map<GURL, FileSystemInfo> OriginInfoMap;
OriginInfoMap file_system_info_map;
for (size_t i = 0; i < arraysize(types); ++i) {
storage::FileSystemType type = types[i];
storage::FileSystemQuotaUtil* quota_util =
filesystem_context_->GetQuotaUtil(type);
DCHECK(quota_util);
std::set<GURL> origins;
quota_util->GetOriginsForTypeOnFileTaskRunner(type, &origins);
for (const GURL& current : origins) {
if (!BrowsingDataHelper::HasWebScheme(current))
continue; // Non-websafe state is not considered browsing data.
int64_t usage = quota_util->GetOriginUsageOnFileTaskRunner(
filesystem_context_.get(), current, type);
OriginInfoMap::iterator inserted =
file_system_info_map.insert(
std::make_pair(current, FileSystemInfo(current))).first;
inserted->second.usage_map[type] = usage;
}
}
for (const auto& iter : file_system_info_map)
result.push_back(iter.second);
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
base::Bind(callback, result));
}
void BrowsingDataFileSystemHelperImpl::DeleteFileSystemOriginInFileThread(
const GURL& origin) {
DCHECK(file_task_runner()->RunsTasksOnCurrentThread());
filesystem_context_->DeleteDataForOriginOnFileTaskRunner(origin);
}
} // namespace
BrowsingDataFileSystemHelper::FileSystemInfo::FileSystemInfo(
const GURL& origin) : origin(origin) {}
BrowsingDataFileSystemHelper::FileSystemInfo::FileSystemInfo(
const FileSystemInfo& other) = default;
BrowsingDataFileSystemHelper::FileSystemInfo::~FileSystemInfo() {}
// static
BrowsingDataFileSystemHelper* BrowsingDataFileSystemHelper::Create(
storage::FileSystemContext* filesystem_context) {
return new BrowsingDataFileSystemHelperImpl(filesystem_context);
}
CannedBrowsingDataFileSystemHelper::CannedBrowsingDataFileSystemHelper(
Profile* profile) {
}
CannedBrowsingDataFileSystemHelper::~CannedBrowsingDataFileSystemHelper() {}
void CannedBrowsingDataFileSystemHelper::AddFileSystem(
const GURL& origin,
const storage::FileSystemType type,
const int64_t size) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
// This canned implementation of AddFileSystem uses an O(n^2) algorithm; which
// is fine, as it isn't meant for use in a high-volume context. If it turns
// out that we want to start using this in a context with many, many origins,
// we should think about reworking the implementation.
bool duplicate_origin = false;
for (FileSystemInfo& file_system : file_system_info_) {
if (file_system.origin == origin) {
file_system.usage_map[type] = size;
duplicate_origin = true;
break;
}
}
if (duplicate_origin)
return;
if (!BrowsingDataHelper::HasWebScheme(origin))
return; // Non-websafe state is not considered browsing data.
FileSystemInfo info(origin);
info.usage_map[type] = size;
file_system_info_.push_back(info);
}
void CannedBrowsingDataFileSystemHelper::Reset() {
file_system_info_.clear();
}
bool CannedBrowsingDataFileSystemHelper::empty() const {
return file_system_info_.empty();
}
size_t CannedBrowsingDataFileSystemHelper::GetFileSystemCount() const {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
return file_system_info_.size();
}
void CannedBrowsingDataFileSystemHelper::StartFetching(
const FetchCallback& callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!callback.is_null());
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE, base::Bind(callback, file_system_info_));
}
|
