1/*
2 * Copyright (C) 2012 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 INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#import "config.h"
27#import "Download.h"
28
29#if PLATFORM(IOS)
30
31#import "DataReference.h"
32#import <CFNetwork/CFURLDownload.h>
33#import <WebCore/NotImplemented.h>
34#import <WebCore/ResourceError.h>
35#import <WebCore/ResourceHandle.h>
36#import <WebCore/ResourceResponse.h>
37#import <wtf/RetainPtr.h>
38#import <wtf/RunLoop.h>
39
40using namespace WebCore;
41
42namespace WebKit {
43
44// FIXME: If possible, we should consider moving some callbacks off the main thread or at least
45// making them asynchonous calls.
46static void dispatchOnMainThread(void(^block)())
47{
48    if (RunLoop::isMain()) {
49        block();
50        return;
51    }
52
53    dispatch_sync(dispatch_get_main_queue(), block);
54}
55
56static inline Download* toDownload(const void* clientInfo)
57{
58    return static_cast<Download*>(const_cast<void*>(clientInfo));
59}
60
61static void setUpDownloadClient(CFURLDownloadClient& client, Download& download)
62{
63    memset(&client, 0, sizeof(client));
64    client.clientInfo = &download;
65
66    client.didStart = [](CFURLDownloadRef, const void* clientInfo) {
67        dispatchOnMainThread(^{
68            toDownload(clientInfo)->didStart();
69        });
70    };
71
72    client.willSendRequest = [](CFURLDownloadRef, CFURLRequestRef request, CFURLResponseRef, const void*) -> CFURLRequestRef {
73        return static_cast<CFURLRequestRef>(CFRetain(request));
74    };
75
76    client.didReceiveResponse = [](CFURLDownloadRef, CFURLResponseRef response, const void* clientInfo) {
77        dispatchOnMainThread(^{
78            toDownload(clientInfo)->didReceiveResponse(response);
79        });
80    };
81
82    client.didReceiveData = [](CFURLDownloadRef, CFIndex length, const void* clientInfo) {
83        dispatchOnMainThread(^{
84            toDownload(clientInfo)->didReceiveData(length);
85        });
86    };
87
88    client.shouldDecodeDataOfMIMEType = [](CFURLDownloadRef, CFStringRef encodingType, const void* clientInfo) -> Boolean {
89        __block BOOL returnValue = NO;
90        dispatchOnMainThread(^{
91            returnValue = toDownload(clientInfo)->shouldDecodeSourceDataOfMIMEType(encodingType);
92        });
93        return returnValue;
94    };
95
96    client.decideDestinationWithSuggestedObjectName = [](CFURLDownloadRef downloadRef, CFStringRef objectName, const void* clientInfo) {
97        dispatchOnMainThread(^{
98            bool allowOverwrite;
99            String destination = toDownload(clientInfo)->decideDestinationWithSuggestedFilename(objectName, allowOverwrite);
100            if (!destination.isNull())
101                CFURLDownloadSetDestination(downloadRef, reinterpret_cast<CFURLRef>([NSURL fileURLWithPath:destination]), allowOverwrite);
102        });
103    };
104
105    client.didCreateDestination = [](CFURLDownloadRef, CFURLRef path, const void* clientInfo) {
106        dispatchOnMainThread(^{
107            toDownload(clientInfo)->didCreateDestination(CFURLGetString(path));
108        });
109    };
110
111    client.didFinish = [](CFURLDownloadRef, const void* clientInfo) {
112        dispatchOnMainThread(^{
113            toDownload(clientInfo)->didFinish();
114        });
115    };
116
117    client.didFail = [](CFURLDownloadRef downloadRef, CFErrorRef error, const void* clientInfo) {
118        dispatchOnMainThread(^{
119            auto resumeData = adoptCF(CFURLDownloadCopyResumeData(downloadRef));
120            toDownload(clientInfo)->didFail(error, IPC::DataReference(CFDataGetBytePtr(resumeData.get()), CFDataGetLength(resumeData.get())));
121        });
122    };
123}
124
125void Download::start()
126{
127    notImplemented();
128}
129
130void Download::startWithHandle(ResourceHandle* handle, const ResourceResponse& response)
131{
132    CFURLDownloadClient client;
133    setUpDownloadClient(client, *this);
134    m_download = adoptCF(CFURLDownloadCreateAndStartWithLoadingConnection(NULL, handle->releaseConnectionForDownload().get(), m_request.cfURLRequest(UpdateHTTPBody), response.cfURLResponse(), &client));
135}
136
137void Download::cancel()
138{
139    notImplemented();
140}
141
142void Download::platformInvalidate()
143{
144    notImplemented();
145}
146
147void Download::didDecideDestination(const String&, bool)
148{
149    notImplemented();
150}
151
152void Download::platformDidFinish()
153{
154    notImplemented();
155}
156
157void Download::receivedCredential(const AuthenticationChallenge&, const Credential&)
158{
159    notImplemented();
160}
161
162void Download::receivedRequestToContinueWithoutCredential(const AuthenticationChallenge&)
163{
164    notImplemented();
165}
166
167void Download::receivedCancellation(const AuthenticationChallenge&)
168{
169    notImplemented();
170}
171
172void Download::receivedRequestToPerformDefaultHandling(const WebCore::AuthenticationChallenge&)
173{
174    notImplemented();
175}
176
177void Download::receivedChallengeRejection(const WebCore::AuthenticationChallenge&)
178{
179    notImplemented();
180}
181
182} // namespace WebKit
183
184#endif // PLATFORM(IOS)
185