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1/*
2 * Copyright (C) 2008 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "CookieStorage.h"
28
29#import "ResourceHandle.h"
30#import "WebCoreSystemInterface.h"
31#import <wtf/RetainPtr.h>
32#import <wtf/UnusedParam.h>
33
34#if USE(PLATFORM_STRATEGIES)
35#include "CookiesStrategy.h"
36#include "PlatformStrategies.h"
37#endif
38
39using namespace WebCore;
40
41@interface CookieStorageObjCAdapter : NSObject
42-(void)notifyCookiesChangedOnMainThread;
43-(void)cookiesChangedNotificationHandler:(NSNotification *)notification;
44-(void)startListeningForCookieChangeNotifications;
45-(void)stopListeningForCookieChangeNotifications;
46@end
47
48@implementation CookieStorageObjCAdapter
49
50-(void)notifyCookiesChangedOnMainThread
51{
52#if USE(PLATFORM_STRATEGIES)
53    platformStrategies()->cookiesStrategy()->notifyCookiesChanged();
54#endif
55}
56
57-(void)cookiesChangedNotificationHandler:(NSNotification *)notification
58{
59    UNUSED_PARAM(notification);
60
61    [self performSelectorOnMainThread:@selector(notifyCookiesChangedOnMainThread) withObject:nil waitUntilDone:FALSE];
62}
63
64-(void)startListeningForCookieChangeNotifications
65{
66    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(cookiesChangedNotificationHandler:) name:NSHTTPCookieManagerCookiesChangedNotification object:[NSHTTPCookieStorage sharedHTTPCookieStorage]];
67}
68
69-(void)stopListeningForCookieChangeNotifications
70{
71    [[NSNotificationCenter defaultCenter] removeObserver:self name:NSHTTPCookieManagerCookiesChangedNotification object:nil];
72}
73
74@end
75
76namespace WebCore {
77
78#if USE(CFURLSTORAGESESSIONS)
79
80RetainPtr<CFHTTPCookieStorageRef>& privateBrowsingCookieStorage()
81{
82    DEFINE_STATIC_LOCAL(RetainPtr<CFHTTPCookieStorageRef>, cookieStorage, ());
83    return cookieStorage;
84}
85
86#endif
87
88void setCookieStoragePrivateBrowsingEnabled(bool enabled)
89{
90#if USE(CFURLSTORAGESESSIONS)
91    if (enabled && privateBrowsingCookieStorage())
92        return;
93
94    if (enabled && ResourceHandle::privateBrowsingStorageSession()) {
95        privateBrowsingCookieStorage().adoptCF(wkCopyHTTPCookieStorage(ResourceHandle::privateBrowsingStorageSession()));
96
97        // FIXME: When Private Browsing is enabled, the Private Browsing Cookie Storage should be
98        // observed for changes, not the default Cookie Storage.
99
100        return;
101    }
102
103    privateBrowsingCookieStorage() = nullptr;
104#endif
105    wkSetCookieStoragePrivateBrowsingEnabled(enabled);
106}
107
108static CookieStorageObjCAdapter *cookieStorageAdapter;
109
110void startObservingCookieChanges()
111{
112    if (!cookieStorageAdapter)
113        cookieStorageAdapter = [[CookieStorageObjCAdapter alloc] init];
114    [cookieStorageAdapter startListeningForCookieChangeNotifications];
115}
116
117void stopObservingCookieChanges()
118{
119    // cookieStorageAdapter can be nil here, if the WebProcess crashed and was restarted between
120    // when startObservingCookieChanges was called, and stopObservingCookieChanges is currently being called.
121    if (!cookieStorageAdapter)
122        return;
123    [cookieStorageAdapter stopListeningForCookieChangeNotifications];
124}
125
126}
127