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
|
// Copyright (c) 2011 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/appcache/chrome_appcache_service.h"
#include "base/file_path.h"
#include "base/file_util.h"
#include "chrome/browser/browser_list.h"
#include "chrome/browser/net/chrome_url_request_context.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/notification_service.h"
#include "net/base/net_errors.h"
#include "webkit/appcache/appcache_thread.h"
static bool has_initialized_thread_ids;
namespace {
// Used to defer deleting of local storage until the destructor has finished.
void DeleteLocalStateOnIOThread(FilePath cache_path) {
// Post the actual deletion to the DB thread to ensure it happens after the
// database file has been closed.
BrowserThread::PostTask(
BrowserThread::DB, FROM_HERE,
NewRunnableFunction<bool(*)(const FilePath&, bool), FilePath, bool>(
&file_util::Delete, cache_path, true));
}
} // namespace
// ----------------------------------------------------------------------------
ChromeAppCacheService::ChromeAppCacheService() {
}
void ChromeAppCacheService::InitializeOnIOThread(
const FilePath& profile_path, bool is_incognito,
scoped_refptr<HostContentSettingsMap> content_settings_map,
bool clear_local_state_on_exit) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
if (!has_initialized_thread_ids) {
has_initialized_thread_ids = true;
appcache::AppCacheThread::Init(BrowserThread::DB, BrowserThread::IO);
}
host_contents_settings_map_ = content_settings_map;
registrar_.Add(
this, NotificationType::PURGE_MEMORY, NotificationService::AllSources());
SetClearLocalStateOnExit(clear_local_state_on_exit);
if (!is_incognito)
cache_path_ = profile_path.Append(chrome::kAppCacheDirname);
// Init our base class.
Initialize(cache_path_,
BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE));
set_appcache_policy(this);
}
ChromeAppCacheService::~ChromeAppCacheService() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
if (clear_local_state_on_exit_ && !cache_path_.empty()) {
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
NewRunnableFunction(DeleteLocalStateOnIOThread, cache_path_));
}
}
void ChromeAppCacheService::SetOriginQuotaInMemory(
const GURL& origin, int64 quota) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
if (storage())
storage()->SetOriginQuotaInMemory(origin, quota);
}
void ChromeAppCacheService::ResetOriginQuotaInMemory(const GURL& origin) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
if (storage())
storage()->ResetOriginQuotaInMemory(origin);
}
void ChromeAppCacheService::SetClearLocalStateOnExit(bool clear_local_state) {
if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) {
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
NewRunnableMethod(this,
&ChromeAppCacheService::SetClearLocalStateOnExit,
clear_local_state));
return;
}
clear_local_state_on_exit_ = clear_local_state;
}
bool ChromeAppCacheService::CanLoadAppCache(const GURL& manifest_url) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
ContentSetting setting = host_contents_settings_map_->GetContentSetting(
manifest_url, CONTENT_SETTINGS_TYPE_COOKIES, "");
DCHECK(setting != CONTENT_SETTING_DEFAULT);
// We don't prompt for read access.
return setting != CONTENT_SETTING_BLOCK;
}
int ChromeAppCacheService::CanCreateAppCache(
const GURL& manifest_url, net::CompletionCallback* callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
ContentSetting setting = host_contents_settings_map_->GetContentSetting(
manifest_url, CONTENT_SETTINGS_TYPE_COOKIES, "");
DCHECK(setting != CONTENT_SETTING_DEFAULT);
return (setting != CONTENT_SETTING_BLOCK) ? net::OK :
net::ERR_ACCESS_DENIED;
}
void ChromeAppCacheService::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
DCHECK(type == NotificationType::PURGE_MEMORY);
PurgeMemory();
}
// ----------------------------------------------------------------------------
static BrowserThread::ID ToBrowserThreadID(int id) {
DCHECK(has_initialized_thread_ids);
DCHECK(id == BrowserThread::DB || id == BrowserThread::IO);
return static_cast<BrowserThread::ID>(id);
}
namespace appcache {
// An impl of AppCacheThread we need to provide to the appcache lib.
bool AppCacheThread::PostTask(
int id,
const tracked_objects::Location& from_here,
Task* task) {
return BrowserThread::PostTask(ToBrowserThreadID(id), from_here, task);
}
bool AppCacheThread::CurrentlyOn(int id) {
return BrowserThread::CurrentlyOn(ToBrowserThreadID(id));
}
} // namespace appcache
|
