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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
/*
* Copyright (C) 2005, 2006 Apple Computer, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ResourceLoader_h
#define ResourceLoader_h
#include "ResourceHandleClient.h"
#include "ResourceRequest.h"
#include "ResourceResponse.h"
#include <wtf/RefCounted.h>
#include "AuthenticationChallenge.h"
#include "KURL.h"
#include <wtf/Forward.h>
namespace WebCore {
class ApplicationCacheHost;
class DocumentLoader;
class Frame;
class FrameLoader;
class ProtectionSpace;
class ResourceHandle;
class SharedBuffer;
class ResourceLoader : public RefCounted<ResourceLoader>, protected ResourceHandleClient {
public:
virtual ~ResourceLoader();
void cancel();
virtual bool init(const ResourceRequest&);
FrameLoader* frameLoader() const;
DocumentLoader* documentLoader() const { return m_documentLoader.get(); }
virtual void cancel(const ResourceError&);
ResourceError cancelledError();
ResourceError blockedError();
ResourceError cannotShowURLError();
virtual void setDefersLoading(bool);
#if PLATFORM(ANDROID)
// TODO: This needs upstreaming to WebKit.
virtual void pauseLoad(bool);
#endif
void setIdentifier(unsigned long identifier) { m_identifier = identifier; }
unsigned long identifier() const { return m_identifier; }
virtual void releaseResources();
const ResourceResponse& response() const;
virtual void addData(const char*, int, bool allAtOnce);
virtual PassRefPtr<SharedBuffer> resourceData();
void clearResourceData();
virtual void willSendRequest(ResourceRequest&, const ResourceResponse& redirectResponse);
virtual void didSendData(unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
virtual void didReceiveResponse(const ResourceResponse&);
virtual void didReceiveData(const char*, int, long long encodedDataLength, bool allAtOnce);
virtual void didReceiveCachedMetadata(const char*, int) { }
void willStopBufferingData(const char*, int);
virtual void didFinishLoading(double finishTime);
virtual void didFail(const ResourceError&);
#if HAVE(CFNETWORK_DATA_ARRAY_CALLBACK)
virtual void didReceiveDataArray(CFArrayRef dataArray);
#endif
virtual bool shouldUseCredentialStorage();
virtual void didReceiveAuthenticationChallenge(const AuthenticationChallenge&);
void didCancelAuthenticationChallenge(const AuthenticationChallenge&);
#if USE(PROTECTION_SPACE_AUTH_CALLBACK)
virtual bool canAuthenticateAgainstProtectionSpace(const ProtectionSpace&);
#endif
virtual void receivedCancellation(const AuthenticationChallenge&);
// ResourceHandleClient
virtual void willSendRequest(ResourceHandle*, ResourceRequest&, const ResourceResponse& redirectResponse);
virtual void didSendData(ResourceHandle*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
virtual void didReceiveResponse(ResourceHandle*, const ResourceResponse&);
virtual void didReceiveData(ResourceHandle*, const char*, int, int encodedDataLength);
virtual void didReceiveCachedMetadata(ResourceHandle*, const char* data, int length) { didReceiveCachedMetadata(data, length); }
virtual void didFinishLoading(ResourceHandle*, double finishTime);
virtual void didFail(ResourceHandle*, const ResourceError&);
virtual void wasBlocked(ResourceHandle*);
virtual void cannotShowURL(ResourceHandle*);
virtual void willStopBufferingData(ResourceHandle*, const char* data, int length) { willStopBufferingData(data, length); }
virtual bool shouldUseCredentialStorage(ResourceHandle*) { return shouldUseCredentialStorage(); }
virtual void didReceiveAuthenticationChallenge(ResourceHandle*, const AuthenticationChallenge& challenge) { didReceiveAuthenticationChallenge(challenge); }
virtual void didCancelAuthenticationChallenge(ResourceHandle*, const AuthenticationChallenge& challenge) { didCancelAuthenticationChallenge(challenge); }
#if HAVE(CFNETWORK_DATA_ARRAY_CALLBACK)
virtual void didReceiveDataArray(ResourceHandle*, CFArrayRef dataArray);
#endif
#if USE(PROTECTION_SPACE_AUTH_CALLBACK)
virtual bool canAuthenticateAgainstProtectionSpace(ResourceHandle*, const ProtectionSpace& protectionSpace) { return canAuthenticateAgainstProtectionSpace(protectionSpace); }
#endif
virtual void receivedCancellation(ResourceHandle*, const AuthenticationChallenge& challenge) { receivedCancellation(challenge); }
virtual void willCacheResponse(ResourceHandle*, CacheStoragePolicy&);
#if PLATFORM(MAC)
virtual NSCachedURLResponse* willCacheResponse(ResourceHandle*, NSCachedURLResponse*);
#endif
#if USE(CFNETWORK)
virtual bool shouldCacheResponse(ResourceHandle*, CFCachedURLResponseRef);
#endif
#if ENABLE(BLOB)
virtual AsyncFileStream* createAsyncFileStream(FileStreamClient*);
#endif
const KURL& url() const { return m_request.url(); }
ResourceHandle* handle() const { return m_handle.get(); }
bool sendResourceLoadCallbacks() const { return m_sendResourceLoadCallbacks; }
bool reachedTerminalState() const { return m_reachedTerminalState; }
void setShouldBufferData(bool shouldBufferData);
protected:
ResourceLoader(Frame*, bool sendResourceLoadCallbacks, bool shouldContentSniff);
#if ENABLE(OFFLINE_WEB_APPLICATIONS)
friend class ApplicationCacheHost; // for access to request()
#endif
friend class ResourceLoadScheduler; // for access to start()
// start() actually sends the load to the network (unless the load is being
// deferred) and should only be called by ResourceLoadScheduler or setDefersLoading().
void start();
virtual void didCancel(const ResourceError&);
void didFinishLoadingOnePart(double finishTime);
const ResourceRequest& request() const { return m_request; }
bool cancelled() const { return m_cancelled; }
bool defersLoading() const { return m_defersLoading; }
RefPtr<ResourceHandle> m_handle;
RefPtr<Frame> m_frame;
RefPtr<DocumentLoader> m_documentLoader;
ResourceResponse m_response;
private:
ResourceRequest m_request;
RefPtr<SharedBuffer> m_resourceData;
unsigned long m_identifier;
bool m_reachedTerminalState;
bool m_cancelled;
bool m_calledDidFinishLoad;
bool m_sendResourceLoadCallbacks;
bool m_shouldContentSniff;
bool m_shouldBufferData;
bool m_defersLoading;
ResourceRequest m_deferredRequest;
};
}
#endif
|
