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 "CookieStorageCFNet.h"
28
29#if USE(CFNETWORK)
30
31#include "LoaderRunLoopCF.h"
32#include "ResourceHandle.h"
33#include <CFNetwork/CFHTTPCookiesPriv.h>
34#include <WebKitSystemInterface/WebKitSystemInterface.h>
35#include <wtf/MainThread.h>
36#include <wtf/RetainPtr.h>
37
38#if USE(PLATFORM_STRATEGIES)
39#include "CookiesStrategy.h"
40#include "PlatformStrategies.h"
41#endif
42
43namespace WebCore {
44
45static RetainPtr<CFHTTPCookieStorageRef>& privateCookieStorage()
46{
47    DEFINE_STATIC_LOCAL(RetainPtr<CFHTTPCookieStorageRef>, cookieStorage, ());
48    return cookieStorage;
49}
50
51CFHTTPCookieStorageRef currentCookieStorage()
52{
53    ASSERT(isMainThread());
54
55    if (CFHTTPCookieStorageRef cookieStorage = privateCookieStorage().get())
56        return cookieStorage;
57    return wkGetDefaultHTTPCookieStorage();
58}
59
60CFHTTPCookieStorageRef privateBrowsingCookieStorage()
61{
62    return privateCookieStorage().get();
63}
64
65void setCurrentCookieStorage(CFHTTPCookieStorageRef cookieStorage)
66{
67    ASSERT(isMainThread());
68
69    privateCookieStorage().adoptCF(cookieStorage);
70}
71
72void setCookieStoragePrivateBrowsingEnabled(bool enabled)
73{
74    ASSERT(isMainThread());
75
76    if (!enabled) {
77        privateCookieStorage() = nullptr;
78        return;
79    }
80
81#if USE(CFURLSTORAGESESSIONS)
82    if (CFURLStorageSessionRef privateStorageSession = ResourceHandle::privateBrowsingStorageSession())
83        privateCookieStorage().adoptCF(wkCopyHTTPCookieStorage(privateStorageSession));
84    else
85#endif
86        privateCookieStorage().adoptCF(wkCreateInMemoryHTTPCookieStorage());
87}
88
89CFHTTPCookieStorageRef defaultCookieStorage()
90{
91    return wkGetDefaultHTTPCookieStorage();
92}
93
94static void notifyCookiesChangedOnMainThread(void* context)
95{
96    ASSERT(isMainThread());
97
98#if USE(PLATFORM_STRATEGIES)
99    platformStrategies()->cookiesStrategy()->notifyCookiesChanged();
100#endif
101}
102
103static void notifyCookiesChanged(CFHTTPCookieStorageRef inStorage, void *context)
104{
105    callOnMainThread(notifyCookiesChangedOnMainThread, 0);
106}
107
108static inline CFRunLoopRef cookieStorageObserverRunLoop()
109{
110    // We're using the loader run loop because we need a CFRunLoop to
111    // call the CFNetwork cookie storage APIs with. Re-using the loader
112    // run loop is less overhead than starting a new thread to just listen
113    // for changes in cookies.
114
115    // FIXME: The loaderRunLoop function name should be a little more generic.
116    return loaderRunLoop();
117}
118
119void startObservingCookieChanges()
120{
121    ASSERT(isMainThread());
122
123    CFRunLoopRef runLoop = cookieStorageObserverRunLoop();
124    ASSERT(runLoop);
125
126    CFHTTPCookieStorageRef cookieStorage = currentCookieStorage();
127    ASSERT(cookieStorage);
128
129    CFHTTPCookieStorageScheduleWithRunLoop(cookieStorage, runLoop, kCFRunLoopCommonModes);
130    CFHTTPCookieStorageAddObserver(cookieStorage, runLoop, kCFRunLoopDefaultMode, notifyCookiesChanged, 0);
131}
132
133void stopObservingCookieChanges()
134{
135    ASSERT(isMainThread());
136
137    CFRunLoopRef runLoop = cookieStorageObserverRunLoop();
138    ASSERT(runLoop);
139
140    CFHTTPCookieStorageRef cookieStorage = currentCookieStorage();
141    ASSERT(cookieStorage);
142
143    CFHTTPCookieStorageRemoveObserver(cookieStorage, runLoop, kCFRunLoopDefaultMode, notifyCookiesChanged, 0);
144    CFHTTPCookieStorageUnscheduleFromRunLoop(cookieStorage, runLoop, kCFRunLoopCommonModes);
145}
146
147} // namespace WebCore
148
149#endif // USE(CFNETWORK)
150