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
|
/*
* 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 ApplicationCache;
class DocumentLoader;
class Frame;
class FrameLoader;
class ResourceHandle;
class SharedBuffer;
class ResourceLoader : public RefCounted<ResourceLoader>, protected ResourceHandleClient {
public:
virtual ~ResourceLoader();
void cancel();
virtual bool load(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);
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 lengthReceived, bool allAtOnce);
void willStopBufferingData(const char*, int);
virtual void didFinishLoading();
virtual void didFail(const ResourceError&);
virtual bool shouldUseCredentialStorage();
virtual void didReceiveAuthenticationChallenge(const AuthenticationChallenge&);
void didCancelAuthenticationChallenge(const AuthenticationChallenge&);
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 lengthReceived);
virtual void didFinishLoading(ResourceHandle*);
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); }
virtual void receivedCancellation(ResourceHandle*, const AuthenticationChallenge& challenge) { receivedCancellation(challenge); }
virtual void willCacheResponse(ResourceHandle*, CacheStoragePolicy&);
#if PLATFORM(MAC)
virtual NSCachedURLResponse* willCacheResponse(ResourceHandle*, NSCachedURLResponse*);
#endif
ResourceHandle* handle() const { return m_handle.get(); }
bool sendResourceLoadCallbacks() const { return m_sendResourceLoadCallbacks; }
void setShouldBufferData(bool shouldBufferData);
protected:
ResourceLoader(Frame*, bool sendResourceLoadCallbacks, bool shouldContentSniff);
#if ENABLE(OFFLINE_WEB_APPLICATIONS)
bool scheduleLoadFallbackResourceFromApplicationCache(ApplicationCache* = 0);
#endif
virtual void didCancel(const ResourceError&);
void didFinishLoadingOnePart();
const ResourceRequest& request() const { return m_request; }
bool reachedTerminalState() const { return m_reachedTerminalState; }
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
|