1/* 2 * Copyright (C) 2013 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef BackgroundHTMLParser_h 27#define BackgroundHTMLParser_h 28 29#if ENABLE(THREADED_HTML_PARSER) 30 31#include "BackgroundHTMLInputStream.h" 32#include "CompactHTMLToken.h" 33#include "HTMLParserOptions.h" 34#include "HTMLPreloadScanner.h" 35#include "HTMLSourceTracker.h" 36#include "HTMLToken.h" 37#include "HTMLTokenizer.h" 38#include "HTMLTreeBuilderSimulator.h" 39#include "XSSAuditorDelegate.h" 40#include <wtf/PassOwnPtr.h> 41#include <wtf/RefPtr.h> 42#include <wtf/Vector.h> 43#include <wtf/WeakPtr.h> 44 45namespace WebCore { 46 47class HTMLDocumentParser; 48class XSSAuditor; 49 50class BackgroundHTMLParser { 51 WTF_MAKE_FAST_ALLOCATED; 52public: 53 struct Configuration { 54 HTMLParserOptions options; 55 WeakPtr<HTMLDocumentParser> parser; 56 OwnPtr<XSSAuditor> xssAuditor; 57 OwnPtr<TokenPreloadScanner> preloadScanner; 58 }; 59 60 static void create(PassRefPtr<WeakReference<BackgroundHTMLParser> > reference, PassOwnPtr<Configuration> config) 61 { 62 new BackgroundHTMLParser(reference, config); 63 // Caller must free by calling stop(). 64 } 65 66 struct Checkpoint { 67 WeakPtr<HTMLDocumentParser> parser; 68 OwnPtr<HTMLToken> token; 69 OwnPtr<HTMLTokenizer> tokenizer; 70 HTMLTreeBuilderSimulator::State treeBuilderState; 71 HTMLInputCheckpoint inputCheckpoint; 72 TokenPreloadScannerCheckpoint preloadScannerCheckpoint; 73 String unparsedInput; 74 }; 75 76 void append(const String&); 77 void resumeFrom(PassOwnPtr<Checkpoint>); 78 void startedChunkWithCheckpoint(HTMLInputCheckpoint); 79 void finish(); 80 void stop(); 81 82 void forcePlaintextForTextDocument(); 83 84private: 85 BackgroundHTMLParser(PassRefPtr<WeakReference<BackgroundHTMLParser> >, PassOwnPtr<Configuration>); 86 87 void markEndOfFile(); 88 void pumpTokenizer(); 89 void sendTokensToMainThread(); 90 91 WeakPtrFactory<BackgroundHTMLParser> m_weakFactory; 92 BackgroundHTMLInputStream m_input; 93 HTMLSourceTracker m_sourceTracker; 94 OwnPtr<HTMLToken> m_token; 95 OwnPtr<HTMLTokenizer> m_tokenizer; 96 HTMLTreeBuilderSimulator m_treeBuilderSimulator; 97 HTMLParserOptions m_options; 98 WeakPtr<HTMLDocumentParser> m_parser; 99 100 OwnPtr<CompactHTMLTokenStream> m_pendingTokens; 101 PreloadRequestStream m_pendingPreloads; 102 XSSInfoStream m_pendingXSSInfos; 103 104 OwnPtr<XSSAuditor> m_xssAuditor; 105 OwnPtr<TokenPreloadScanner> m_preloadScanner; 106}; 107 108} 109 110#endif // ENABLE(THREADED_HTML_PARSER) 111 112#endif 113