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1 /*
2  * Copyright (C) 2011 Google 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 are
6  * met:
7  *
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  *
11  * 2. Redistributions in binary form must reproduce the above
12  * copyright notice, this list of conditions and the following disclaimer
13  * in the documentation and/or other materials provided with the
14  * distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. AND ITS CONTRIBUTORS
17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC.
20  * OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #ifndef NetworkResourcesData_h
30 #define NetworkResourcesData_h
31 
32 #include "core/dom/ContextLifecycleObserver.h"
33 #include "core/html/parser/TextResourceDecoder.h"
34 #include "core/inspector/InspectorPageAgent.h"
35 #include "platform/network/HTTPHeaderMap.h"
36 #include "platform/weborigin/KURL.h"
37 #include "wtf/Deque.h"
38 #include "wtf/HashMap.h"
39 #include "wtf/RefCounted.h"
40 #include "wtf/text/WTFString.h"
41 
42 
43 namespace WebCore {
44 
45 class ExecutionContext;
46 class Resource;
47 class FormData;
48 class ResourceResponse;
49 class SharedBuffer;
50 class TextResourceDecoder;
51 
52 class XHRReplayData
53     : public RefCounted<XHRReplayData>
54     , public ContextLifecycleObserver {
55 public:
56     static PassRefPtr<XHRReplayData> create(ExecutionContext*, const AtomicString& method, const KURL&, bool async, PassRefPtr<FormData>, bool includeCredentials);
57 
58     void addHeader(const AtomicString& key, const AtomicString& value);
method()59     const AtomicString& method() const { return m_method; }
url()60     const KURL& url() const { return m_url; }
async()61     bool async() const { return m_async; }
formData()62     PassRefPtr<FormData> formData() const { return m_formData; }
headers()63     const HTTPHeaderMap& headers() const { return m_headers; }
includeCredentials()64     bool includeCredentials() const { return m_includeCredentials; }
65 
66 private:
67     XHRReplayData(ExecutionContext*, const AtomicString& method, const KURL&, bool async, PassRefPtr<FormData>, bool includeCredentials);
68 
69     AtomicString m_method;
70     KURL m_url;
71     bool m_async;
72     RefPtr<FormData> m_formData;
73     HTTPHeaderMap m_headers;
74     bool m_includeCredentials;
75 };
76 
77 class NetworkResourcesData {
78     WTF_MAKE_FAST_ALLOCATED;
79 public:
80     class ResourceData {
81         WTF_MAKE_FAST_ALLOCATED;
82         friend class NetworkResourcesData;
83     public:
84         ResourceData(const String& requestId, const String& loaderId);
85 
requestId()86         String requestId() const { return m_requestId; }
loaderId()87         String loaderId() const { return m_loaderId; }
88 
frameId()89         String frameId() const { return m_frameId; }
setFrameId(const String & frameId)90         void setFrameId(const String& frameId) { m_frameId = frameId; }
91 
url()92         KURL url() const { return m_url; }
setUrl(const KURL & url)93         void setUrl(const KURL& url) { m_url = url; }
94 
hasContent()95         bool hasContent() const { return !m_content.isNull(); }
content()96         String content() const { return m_content; }
97         void setContent(const String&, bool base64Encoded);
98 
base64Encoded()99         bool base64Encoded() const { return m_base64Encoded; }
100 
101         unsigned removeContent();
isContentEvicted()102         bool isContentEvicted() const { return m_isContentEvicted; }
103         unsigned evictContent();
104 
type()105         InspectorPageAgent::ResourceType type() const { return m_type; }
setType(InspectorPageAgent::ResourceType type)106         void setType(InspectorPageAgent::ResourceType type) { m_type = type; }
107 
httpStatusCode()108         int httpStatusCode() const { return m_httpStatusCode; }
setHTTPStatusCode(int httpStatusCode)109         void setHTTPStatusCode(int httpStatusCode) { m_httpStatusCode = httpStatusCode; }
110 
textEncodingName()111         String textEncodingName() const { return m_textEncodingName; }
setTextEncodingName(const String & textEncodingName)112         void setTextEncodingName(const String& textEncodingName) { m_textEncodingName = textEncodingName; }
113 
decoder()114         TextResourceDecoder* decoder() const { return m_decoder.get(); }
setDecoder(PassOwnPtr<TextResourceDecoder> decoder)115         void setDecoder(PassOwnPtr<TextResourceDecoder> decoder) { m_decoder = decoder; }
116 
buffer()117         PassRefPtr<SharedBuffer> buffer() const { return m_buffer; }
setBuffer(PassRefPtr<SharedBuffer> buffer)118         void setBuffer(PassRefPtr<SharedBuffer> buffer) { m_buffer = buffer; }
119 
cachedResource()120         Resource* cachedResource() const { return m_cachedResource; }
setResource(Resource * cachedResource)121         void setResource(Resource* cachedResource) { m_cachedResource = cachedResource; }
122 
xhrReplayData()123         XHRReplayData* xhrReplayData() const { return m_xhrReplayData.get(); }
setXHRReplayData(XHRReplayData * xhrReplayData)124         void setXHRReplayData(XHRReplayData* xhrReplayData) { m_xhrReplayData = xhrReplayData; }
125 
126     private:
hasData()127         bool hasData() const { return m_dataBuffer; }
128         size_t dataLength() const;
129         void appendData(const char* data, size_t dataLength);
130         size_t decodeDataToContent();
131 
132         String m_requestId;
133         String m_loaderId;
134         String m_frameId;
135         KURL m_url;
136         String m_content;
137         RefPtr<XHRReplayData> m_xhrReplayData;
138         bool m_base64Encoded;
139         RefPtr<SharedBuffer> m_dataBuffer;
140         bool m_isContentEvicted;
141         InspectorPageAgent::ResourceType m_type;
142         int m_httpStatusCode;
143 
144         String m_textEncodingName;
145         OwnPtr<TextResourceDecoder> m_decoder;
146 
147         RefPtr<SharedBuffer> m_buffer;
148         Resource* m_cachedResource;
149     };
150 
151     NetworkResourcesData();
152 
153     ~NetworkResourcesData();
154 
155     void resourceCreated(const String& requestId, const String& loaderId);
156     void responseReceived(const String& requestId, const String& frameId, const ResourceResponse&);
157     void setResourceType(const String& requestId, InspectorPageAgent::ResourceType);
158     InspectorPageAgent::ResourceType resourceType(const String& requestId);
159     void setResourceContent(const String& requestId, const String& content, bool base64Encoded = false);
160     void maybeAddResourceData(const String& requestId, const char* data, size_t dataLength);
161     void maybeDecodeDataToContent(const String& requestId);
162     void addResource(const String& requestId, Resource*);
163     ResourceData const* data(const String& requestId);
164     Vector<String> removeResource(Resource*);
165     void clear(const String& preservedLoaderId = String());
166 
167     void setResourcesDataSizeLimits(size_t maximumResourcesContentSize, size_t maximumSingleResourceContentSize);
168     void setXHRReplayData(const String& requestId, XHRReplayData*);
169     XHRReplayData* xhrReplayData(const String& requestId);
170     Vector<ResourceData*> resources();
171 
172 private:
173     ResourceData* resourceDataForRequestId(const String& requestId);
174     void ensureNoDataForRequestId(const String& requestId);
175     bool ensureFreeSpace(size_t);
176 
177     Deque<String> m_requestIdsDeque;
178 
179     typedef HashMap<String, String> ReusedRequestIds;
180     ReusedRequestIds m_reusedXHRReplayDataRequestIds;
181     typedef HashMap<String, ResourceData*> ResourceDataMap;
182     ResourceDataMap m_requestIdToResourceDataMap;
183     size_t m_contentSize;
184     size_t m_maximumResourcesContentSize;
185     size_t m_maximumSingleResourceContentSize;
186 };
187 
188 } // namespace WebCore
189 
190 
191 #endif // !defined(NetworkResourcesData_h)
192