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
|
/*
* Copyright (C) 2009, 2012 Google Inc. All rights reserved.
* Copyright (C) 2013, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 DocumentThreadableLoader_h
#define DocumentThreadableLoader_h
#include "core/fetch/RawResource.h"
#include "core/fetch/ResourceOwner.h"
#include "core/loader/ThreadableLoader.h"
#include "platform/Timer.h"
#include "platform/network/HTTPHeaderMap.h"
#include "platform/network/ResourceError.h"
#include "wtf/Forward.h"
#include "wtf/OwnPtr.h"
#include "wtf/PassRefPtr.h"
#include "wtf/text/WTFString.h"
namespace WebCore {
class Document;
class KURL;
class ResourceRequest;
class SecurityOrigin;
class ThreadableLoaderClient;
class DocumentThreadableLoader FINAL : public ThreadableLoader, private ResourceOwner<RawResource> {
WTF_MAKE_FAST_ALLOCATED;
public:
static void loadResourceSynchronously(Document&, const ResourceRequest&, ThreadableLoaderClient&, const ThreadableLoaderOptions&, const ResourceLoaderOptions&);
static PassRefPtr<DocumentThreadableLoader> create(Document&, ThreadableLoaderClient*, const ResourceRequest&, const ThreadableLoaderOptions&, const ResourceLoaderOptions&);
virtual ~DocumentThreadableLoader();
virtual void cancel() OVERRIDE;
void setDefersLoading(bool);
private:
enum BlockingBehavior {
LoadSynchronously,
LoadAsynchronously
};
DocumentThreadableLoader(Document&, ThreadableLoaderClient*, BlockingBehavior, const ResourceRequest&, const ThreadableLoaderOptions&, const ResourceLoaderOptions&);
// RawResourceClient implementation
virtual void dataSent(Resource*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent) OVERRIDE;
virtual void responseReceived(Resource*, const ResourceResponse&) OVERRIDE;
virtual void dataReceived(Resource*, const char* data, int dataLength) OVERRIDE;
virtual void redirectReceived(Resource*, ResourceRequest&, const ResourceResponse&) OVERRIDE;
virtual void notifyFinished(Resource*) OVERRIDE;
virtual void dataDownloaded(Resource*, int) OVERRIDE;
void cancelWithError(const ResourceError&);
// Methods containing code to handle resource fetch results which is
// common to both sync and async mode.
void handleResponse(unsigned long identifier, const ResourceResponse&);
void handleReceivedData(const char* data, int dataLength);
void handleSuccessfulFinish(unsigned long identifier, double finishTime);
void didTimeout(Timer<DocumentThreadableLoader>*);
void makeCrossOriginAccessRequest(const ResourceRequest&);
// Loads m_actualRequest.
void loadActualRequest();
// Clears m_actualRequest and reports access control check failure to
// m_client.
void handlePreflightFailure(const String& url, const String& errorDescription);
// Investigates the response for the preflight request. If successful,
// the actual request will be made later in handleSuccessfulFinish().
void handlePreflightResponse(unsigned long identifier, const ResourceResponse&);
void loadRequest(const ResourceRequest&, ResourceLoaderOptions);
bool isAllowedRedirect(const KURL&) const;
bool isAllowedByPolicy(const KURL&) const;
// Returns DoNotAllowStoredCredentials
// if m_forceDoNotAllowStoredCredentials is set. Otherwise, just
// returns allowCredentials value of m_resourceLoaderOptions.
StoredCredentials effectiveAllowCredentials() const;
SecurityOrigin* securityOrigin() const;
ThreadableLoaderClient* m_client;
Document& m_document;
const ThreadableLoaderOptions m_options;
// Some items may be overridden by m_forceDoNotAllowStoredCredentials
// and m_securityOrigin. In such a case, build a ResourceLoaderOptions
// with up-to-date values from them and this variable, and use it.
const ResourceLoaderOptions m_resourceLoaderOptions;
bool m_forceDoNotAllowStoredCredentials;
RefPtr<SecurityOrigin> m_securityOrigin;
bool m_sameOriginRequest;
bool m_simpleRequest;
bool m_async;
// Holds the original request and options for it during preflight
// request handling phase.
OwnPtr<ResourceRequest> m_actualRequest;
OwnPtr<ResourceLoaderOptions> m_actualOptions;
HTTPHeaderMap m_simpleRequestHeaders; // stores simple request headers in case of a cross-origin redirect.
Timer<DocumentThreadableLoader> m_timeoutTimer;
};
} // namespace WebCore
#endif // DocumentThreadableLoader_h
|
