1/*
2 * Copyright (C) 2010 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#include "config.h"
27#include "DownloadProxy.h"
28
29#include "AuthenticationChallengeProxy.h"
30#include "DataReference.h"
31#include "WebContext.h"
32#include "WebData.h"
33#include "WebProcessMessages.h"
34#include <wtf/text/CString.h>
35#include <wtf/text/WTFString.h>
36
37using namespace WebCore;
38
39namespace WebKit {
40
41static uint64_t generateDownloadID()
42{
43    static uint64_t uniqueDownloadID = 0;
44    return ++uniqueDownloadID;
45}
46
47PassRefPtr<DownloadProxy> DownloadProxy::create(WebContext* webContext)
48{
49    return adoptRef(new DownloadProxy(webContext));
50}
51
52DownloadProxy::DownloadProxy(WebContext* webContext)
53    : m_webContext(webContext)
54    , m_downloadID(generateDownloadID())
55{
56}
57
58DownloadProxy::~DownloadProxy()
59{
60    ASSERT(!m_webContext);
61}
62
63void DownloadProxy::cancel()
64{
65    if (!m_webContext)
66        return;
67
68    // FIXME (Multi-WebProcess): Downloads shouldn't be handled in the web process.
69    m_webContext->sendToAllProcesses(Messages::WebProcess::CancelDownload(m_downloadID));
70}
71
72void DownloadProxy::invalidate()
73{
74    ASSERT(m_webContext);
75    m_webContext = 0;
76}
77
78void DownloadProxy::processDidClose()
79{
80    if (!m_webContext)
81        return;
82
83    m_webContext->downloadClient().processDidCrash(m_webContext, this);
84}
85
86void DownloadProxy::didStart(const ResourceRequest& request)
87{
88    m_request = request;
89
90    if (!m_webContext)
91        return;
92
93    m_webContext->downloadClient().didStart(m_webContext, this);
94}
95
96void DownloadProxy::didReceiveAuthenticationChallenge(const AuthenticationChallenge& authenticationChallenge, uint64_t challengeID)
97{
98    if (!m_webContext)
99        return;
100
101    RefPtr<AuthenticationChallengeProxy> authenticationChallengeProxy = AuthenticationChallengeProxy::create(authenticationChallenge, challengeID, m_webContext->process());
102    m_webContext->downloadClient().didReceiveAuthenticationChallenge(m_webContext, this, authenticationChallengeProxy.get());
103}
104
105void DownloadProxy::didReceiveResponse(const ResourceResponse& response)
106{
107    if (!m_webContext)
108        return;
109
110    m_webContext->downloadClient().didReceiveResponse(m_webContext, this, response);
111}
112
113void DownloadProxy::didReceiveData(uint64_t length)
114{
115    if (!m_webContext)
116        return;
117
118    m_webContext->downloadClient().didReceiveData(m_webContext, this, length);
119}
120
121void DownloadProxy::shouldDecodeSourceDataOfMIMEType(const String& mimeType, bool& result)
122{
123    if (!m_webContext)
124        return;
125
126    result = m_webContext->downloadClient().shouldDecodeSourceDataOfMIMEType(m_webContext, this, mimeType);
127}
128
129void DownloadProxy::decideDestinationWithSuggestedFilename(const String& filename, String& destination, bool& allowOverwrite, SandboxExtension::Handle& sandboxExtensionHandle)
130{
131    if (!m_webContext)
132        return;
133
134    destination = m_webContext->downloadClient().decideDestinationWithSuggestedFilename(m_webContext, this, filename, allowOverwrite);
135
136    if (!destination.isNull())
137        SandboxExtension::createHandle(destination, SandboxExtension::WriteOnly, sandboxExtensionHandle);
138}
139
140void DownloadProxy::didCreateDestination(const String& path)
141{
142    if (!m_webContext)
143        return;
144
145    m_webContext->downloadClient().didCreateDestination(m_webContext, this, path);
146}
147
148void DownloadProxy::didFinish()
149{
150    if (!m_webContext)
151        return;
152
153    m_webContext->downloadClient().didFinish(m_webContext, this);
154
155    // This can cause the DownloadProxy object to be deleted.
156    m_webContext->downloadFinished(this);
157}
158
159static PassRefPtr<WebData> createWebData(const CoreIPC::DataReference& data)
160{
161    if (data.isEmpty())
162        return 0;
163
164    return WebData::create(data.data(), data.size());
165}
166
167void DownloadProxy::didFail(const ResourceError& error, const CoreIPC::DataReference& resumeData)
168{
169    if (!m_webContext)
170        return;
171
172    m_resumeData = createWebData(resumeData);
173
174    m_webContext->downloadClient().didFail(m_webContext, this, error);
175
176    // This can cause the DownloadProxy object to be deleted.
177    m_webContext->downloadFinished(this);
178}
179
180void DownloadProxy::didCancel(const CoreIPC::DataReference& resumeData)
181{
182    m_resumeData = createWebData(resumeData);
183
184    m_webContext->downloadClient().didCancel(m_webContext, this);
185
186    // This can cause the DownloadProxy object to be deleted.
187    m_webContext->downloadFinished(this);
188}
189
190} // namespace WebKit
191
192