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1 /* | |
2 * Copyright (C) 2012 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 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 #ifndef WebSocketDeflateFramer_h | |
32 #define WebSocketDeflateFramer_h | |
33 | |
34 #include "modules/websockets/WebSocketDeflater.h" | |
35 #include "modules/websockets/WebSocketExtensionProcessor.h" | |
36 #include "modules/websockets/WebSocketFrame.h" | |
37 #include "wtf/OwnPtr.h" | |
38 #include "wtf/PassOwnPtr.h" | |
39 | |
40 namespace blink { | |
41 | |
42 class WebSocketDeflateFramer; | |
43 | |
44 class DeflateResultHolder { | |
45 WTF_MAKE_FAST_ALLOCATED; | |
46 public: | |
47 static PassOwnPtr<DeflateResultHolder> create(WebSocketDeflateFramer* framer
) | |
48 { | |
49 return adoptPtr(new DeflateResultHolder(framer)); | |
50 } | |
51 | |
52 ~DeflateResultHolder(); | |
53 | |
54 bool succeeded() const { return m_succeeded; } | |
55 String failureReason() const { return m_failureReason; } | |
56 | |
57 void fail(const String& failureReason); | |
58 | |
59 private: | |
60 explicit DeflateResultHolder(WebSocketDeflateFramer*); | |
61 | |
62 WebSocketDeflateFramer* m_framer; | |
63 bool m_succeeded; | |
64 String m_failureReason; | |
65 }; | |
66 | |
67 class InflateResultHolder { | |
68 WTF_MAKE_FAST_ALLOCATED; | |
69 public: | |
70 static PassOwnPtr<InflateResultHolder> create(WebSocketDeflateFramer* framer
) | |
71 { | |
72 return adoptPtr(new InflateResultHolder(framer)); | |
73 } | |
74 | |
75 ~InflateResultHolder(); | |
76 | |
77 bool succeeded() const { return m_succeeded; } | |
78 String failureReason() const { return m_failureReason; } | |
79 | |
80 void fail(const String& failureReason); | |
81 | |
82 private: | |
83 explicit InflateResultHolder(WebSocketDeflateFramer*); | |
84 | |
85 WebSocketDeflateFramer* m_framer; | |
86 bool m_succeeded; | |
87 String m_failureReason; | |
88 }; | |
89 | |
90 class WebSocketDeflateFramer { | |
91 public: | |
92 WebSocketDeflateFramer(); | |
93 | |
94 PassOwnPtr<WebSocketExtensionProcessor> createExtensionProcessor(); | |
95 | |
96 bool enabled() const { return m_enabled; } | |
97 | |
98 PassOwnPtr<DeflateResultHolder> deflate(WebSocketFrame&); | |
99 void resetDeflateContext(); | |
100 PassOwnPtr<InflateResultHolder> inflate(WebSocketFrame&); | |
101 void resetInflateContext(); | |
102 | |
103 void didFail(); | |
104 | |
105 void enableDeflate(int windowBits, WebSocketDeflater::ContextTakeOverMode); | |
106 | |
107 private: | |
108 bool m_enabled; | |
109 OwnPtr<WebSocketDeflater> m_deflater; | |
110 OwnPtr<WebSocketInflater> m_inflater; | |
111 }; | |
112 | |
113 } | |
114 | |
115 #endif // WebSocketDeflateFramer_h | |
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