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Diffstat (limited to '')
| -rw-r--r-- | svtools/source/svhtml/parhtml.cxx | 2213 |
1 files changed, 2213 insertions, 0 deletions
diff --git a/svtools/source/svhtml/parhtml.cxx b/svtools/source/svhtml/parhtml.cxx new file mode 100644 index 0000000000..1f87456744 --- /dev/null +++ b/svtools/source/svhtml/parhtml.cxx @@ -0,0 +1,2213 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <comphelper/string.hxx> +#include <o3tl/safeint.hxx> +#include <o3tl/string_view.hxx> +#include <tools/stream.hxx> +#include <tools/debug.hxx> +#include <tools/color.hxx> +#include <rtl/ustrbuf.hxx> +#include <rtl/character.hxx> +#include <rtl/tencinfo.h> +#include <sal/log.hxx> +#include <tools/tenccvt.hxx> +#include <tools/datetime.hxx> +#include <unotools/datetime.hxx> +#include <svl/inettype.hxx> +#include <svl/lngmisc.hxx> +#include <com/sun/star/beans/PropertyAttribute.hpp> +#include <com/sun/star/document/XDocumentProperties.hpp> + +#include <svtools/parhtml.hxx> +#include <svtools/htmltokn.h> +#include <svtools/htmlkywd.hxx> + +#include <utility> + +using namespace ::com::sun::star; + + +const sal_Int32 MAX_LEN( 1024 ); + +const sal_Int32 MAX_ENTITY_LEN( 8 ); + + +// Tables to convert option values into strings + +// <INPUT TYPE=xxx> +HTMLOptionEnum<HTMLInputType> const aInputTypeOptEnums[] = +{ + { OOO_STRING_SVTOOLS_HTML_IT_text, HTMLInputType::Text }, + { OOO_STRING_SVTOOLS_HTML_IT_password, HTMLInputType::Password }, + { OOO_STRING_SVTOOLS_HTML_IT_checkbox, HTMLInputType::Checkbox }, + { OOO_STRING_SVTOOLS_HTML_IT_radio, HTMLInputType::Radio }, + { OOO_STRING_SVTOOLS_HTML_IT_range, HTMLInputType::Range }, + { OOO_STRING_SVTOOLS_HTML_IT_scribble, HTMLInputType::Scribble }, + { OOO_STRING_SVTOOLS_HTML_IT_file, HTMLInputType::File }, + { OOO_STRING_SVTOOLS_HTML_IT_hidden, HTMLInputType::Hidden }, + { OOO_STRING_SVTOOLS_HTML_IT_submit, HTMLInputType::Submit }, + { OOO_STRING_SVTOOLS_HTML_IT_image, HTMLInputType::Image }, + { OOO_STRING_SVTOOLS_HTML_IT_reset, HTMLInputType::Reset }, + { OOO_STRING_SVTOOLS_HTML_IT_button, HTMLInputType::Button }, + { nullptr, HTMLInputType(0) } +}; + +// <TABLE FRAME=xxx> +HTMLOptionEnum<HTMLTableFrame> const aTableFrameOptEnums[] = +{ + { OOO_STRING_SVTOOLS_HTML_TF_void, HTMLTableFrame::Void }, + { OOO_STRING_SVTOOLS_HTML_TF_above, HTMLTableFrame::Above }, + { OOO_STRING_SVTOOLS_HTML_TF_below, HTMLTableFrame::Below }, + { OOO_STRING_SVTOOLS_HTML_TF_hsides, HTMLTableFrame::HSides }, + { OOO_STRING_SVTOOLS_HTML_TF_lhs, HTMLTableFrame::LHS }, + { OOO_STRING_SVTOOLS_HTML_TF_rhs, HTMLTableFrame::RHS }, + { OOO_STRING_SVTOOLS_HTML_TF_vsides, HTMLTableFrame::VSides }, + { OOO_STRING_SVTOOLS_HTML_TF_box, HTMLTableFrame::Box }, + { OOO_STRING_SVTOOLS_HTML_TF_border, HTMLTableFrame::Box }, + { nullptr, HTMLTableFrame(0) } +}; + +// <TABLE RULES=xxx> +HTMLOptionEnum<HTMLTableRules> const aTableRulesOptEnums[] = +{ + { OOO_STRING_SVTOOLS_HTML_TR_none, HTMLTableRules::NONE }, + { OOO_STRING_SVTOOLS_HTML_TR_groups, HTMLTableRules::Groups }, + { OOO_STRING_SVTOOLS_HTML_TR_rows, HTMLTableRules::Rows }, + { OOO_STRING_SVTOOLS_HTML_TR_cols, HTMLTableRules::Cols }, + { OOO_STRING_SVTOOLS_HTML_TR_all, HTMLTableRules::All }, + { nullptr, HTMLTableRules(0) } +}; + + +HTMLOption::HTMLOption( HtmlOptionId nTok, OUString _aToken, + OUString _aValue ) + : aValue(std::move(_aValue)) + , aToken(std::move(_aToken)) + , nToken( nTok ) +{ + DBG_ASSERT( nToken>=HtmlOptionId::BOOL_START && nToken<HtmlOptionId::END, + "HTMLOption: unknown token" ); +} + +sal_uInt32 HTMLOption::GetNumber() const +{ + DBG_ASSERT( (nToken>=HtmlOptionId::NUMBER_START && + nToken<HtmlOptionId::NUMBER_END) || + (nToken>=HtmlOptionId::CONTEXT_START && + nToken<HtmlOptionId::CONTEXT_END) || + nToken==HtmlOptionId::VALUE, + "GetNumber: Option not numerical" ); + OUString aTmp(comphelper::string::stripStart(aValue, ' ')); + sal_Int32 nTmp = aTmp.toInt32(); + return nTmp >= 0 ? static_cast<sal_uInt32>(nTmp) : 0; +} + +sal_Int32 HTMLOption::GetSNumber() const +{ + DBG_ASSERT( (nToken>=HtmlOptionId::NUMBER_START && nToken<HtmlOptionId::NUMBER_END) || + (nToken>=HtmlOptionId::CONTEXT_START && nToken<HtmlOptionId::CONTEXT_END), + "GetSNumber: Option not numerical" ); + OUString aTmp(comphelper::string::stripStart(aValue, ' ')); + return aTmp.toInt32(); +} + +void HTMLOption::GetNumbers( std::vector<sal_uInt32> &rNumbers ) const +{ + rNumbers.clear(); + + // This is a very simplified scanner: it only searches all + // numerals in the string. + bool bInNum = false; + sal_uInt32 nNum = 0; + for( sal_Int32 i=0; i<aValue.getLength(); i++ ) + { + sal_Unicode c = aValue[ i ]; + if( c>='0' && c<='9' ) + { + nNum *= 10; + nNum += (c - '0'); + bInNum = true; + } + else if( bInNum ) + { + rNumbers.push_back( nNum ); + bInNum = false; + nNum = 0; + } + } + if( bInNum ) + { + rNumbers.push_back( nNum ); + } +} + +void HTMLOption::GetColor( Color& rColor ) const +{ + DBG_ASSERT( (nToken>=HtmlOptionId::COLOR_START && nToken<HtmlOptionId::COLOR_END) || nToken==HtmlOptionId::SIZE, + "GetColor: Option is not a color." ); + + OUString aTmp(aValue.toAsciiLowerCase()); + sal_uInt32 nColor = SAL_MAX_UINT32; + if (!aTmp.isEmpty() && aTmp[0] != '#') + nColor = GetHTMLColor(aTmp); + + if( SAL_MAX_UINT32 == nColor ) + { + nColor = 0; + sal_Int32 nPos = 0; + for (sal_uInt32 i=0; i<6; ++i) + { + // Whatever Netscape does to get color values, + // at maximum three characters < '0' are ignored. + sal_Unicode c = nPos<aTmp.getLength() ? aTmp[ nPos++ ] : '0'; + if( c < '0' ) + { + c = nPos<aTmp.getLength() ? aTmp[nPos++] : '0'; + if( c < '0' ) + c = nPos<aTmp.getLength() ? aTmp[nPos++] : '0'; + } + nColor *= 16; + if( c >= '0' && c <= '9' ) + nColor += (c - '0'); + else if( c >= 'a' && c <= 'f' ) + nColor += (c + 0xa - 'a'); + } + } + + rColor.SetRed( static_cast<sal_uInt8>((nColor & 0x00ff0000) >> 16) ); + rColor.SetGreen( static_cast<sal_uInt8>((nColor & 0x0000ff00) >> 8)); + rColor.SetBlue( static_cast<sal_uInt8>(nColor & 0x000000ff) ); +} + +HTMLInputType HTMLOption::GetInputType() const +{ + DBG_ASSERT( nToken==HtmlOptionId::TYPE, "GetInputType: Option not TYPE" ); + return GetEnum( aInputTypeOptEnums, HTMLInputType::Text ); +} + +HTMLTableFrame HTMLOption::GetTableFrame() const +{ + DBG_ASSERT( nToken==HtmlOptionId::FRAME, "GetTableFrame: Option not FRAME" ); + return GetEnum( aTableFrameOptEnums ); +} + +HTMLTableRules HTMLOption::GetTableRules() const +{ + DBG_ASSERT( nToken==HtmlOptionId::RULES, "GetTableRules: Option not RULES" ); + return GetEnum( aTableRulesOptEnums ); +} + +HTMLParser::HTMLParser( SvStream& rIn, bool bReadNewDoc ) : + SvParser<HtmlTokenId>( rIn ), + bNewDoc(bReadNewDoc), + bIsInHeader(true), + bReadListing(false), + bReadXMP(false), + bReadPRE(false), + bReadTextArea(false), + bReadScript(false), + bReadStyle(false), + bEndTokenFound(false), + bPre_IgnoreNewPara(false), + bReadNextChar(false), + bReadComment(false), + nPre_LinePos(0), + mnPendingOffToken(HtmlTokenId::NONE) +{ + //#i76649, default to UTF-8 for HTML unless we know differently + SetSrcEncoding(RTL_TEXTENCODING_UTF8); +} + +HTMLParser::~HTMLParser() +{ +} + +void HTMLParser::SetNamespace(std::u16string_view rNamespace) +{ + // Convert namespace alias to a prefix. + maNamespace = OUString::Concat(rNamespace) + ":"; +} + +namespace +{ + class RefGuard + { + private: + HTMLParser& m_rParser; + public: + RefGuard(HTMLParser& rParser) + : m_rParser(rParser) + { + m_rParser.AddFirstRef(); + } + + ~RefGuard() + { + if (m_rParser.GetStatus() != SvParserState::Pending) + m_rParser.ReleaseRef(); // Parser not needed anymore + } + }; +} + +SvParserState HTMLParser::CallParser() +{ + eState = SvParserState::Working; + nNextCh = GetNextChar(); + SaveState( HtmlTokenId::NONE ); + + nPre_LinePos = 0; + bPre_IgnoreNewPara = false; + + RefGuard aRefGuard(*this); + + Continue( HtmlTokenId::NONE ); + + return eState; +} + +void HTMLParser::Continue( HtmlTokenId nToken ) +{ + if( nToken == HtmlTokenId::NONE ) + nToken = GetNextToken(); + + while( IsParserWorking() ) + { + SaveState( nToken ); + nToken = FilterToken( nToken ); + + if( nToken != HtmlTokenId::NONE ) + NextToken( nToken ); + + if( IsParserWorking() ) + SaveState( HtmlTokenId::NONE ); // continue with new token + + nToken = GetNextToken(); + } +} + +HtmlTokenId HTMLParser::FilterToken( HtmlTokenId nToken ) +{ + switch( nToken ) + { + case HtmlTokenId(EOF): + nToken = HtmlTokenId::NONE; + break; // don't pass + + case HtmlTokenId::HEAD_OFF: + bIsInHeader = false; + break; + + case HtmlTokenId::HEAD_ON: + bIsInHeader = true; + break; + + case HtmlTokenId::BODY_ON: + bIsInHeader = false; + break; + + case HtmlTokenId::FRAMESET_ON: + bIsInHeader = false; + break; + + case HtmlTokenId::BODY_OFF: + bReadPRE = bReadListing = bReadXMP = false; + break; + + case HtmlTokenId::HTML_OFF: + nToken = HtmlTokenId::NONE; + bReadPRE = bReadListing = bReadXMP = false; + break; // HtmlTokenId::ON hasn't been passed either ! + + case HtmlTokenId::PREFORMTXT_ON: + StartPRE(); + break; + + case HtmlTokenId::PREFORMTXT_OFF: + FinishPRE(); + break; + + case HtmlTokenId::LISTING_ON: + StartListing(); + break; + + case HtmlTokenId::LISTING_OFF: + FinishListing(); + break; + + case HtmlTokenId::XMP_ON: + StartXMP(); + break; + + case HtmlTokenId::XMP_OFF: + FinishXMP(); + break; + + default: + if( bReadPRE ) + nToken = FilterPRE( nToken ); + else if( bReadListing ) + nToken = FilterListing( nToken ); + else if( bReadXMP ) + nToken = FilterXMP( nToken ); + + break; + } + + return nToken; +} + +namespace { + +constexpr bool HTML_ISPRINTABLE(sal_Unicode c) { return c >= 32 && c != 127; } + +constexpr bool HTML_ISSPACE(sal_uInt32 c) +{ + return ' ' == c || '\t' == c || '\r' == c || '\n' == c || '\x0b' == c; +} + +} + +HtmlTokenId HTMLParser::ScanText(const sal_Unicode cBreak) +{ + OUStringBuffer sTmpBuffer( MAX_LEN ); + bool bContinue = true; + bool bEqSignFound = false; + sal_uInt32 cQuote = 0U; + + while( bContinue && IsParserWorking() ) + { + bool bNextCh = true; + switch( nNextCh ) + { + case '&': + bEqSignFound = false; + if( bReadXMP ) + sTmpBuffer.append( '&' ); + else + { + sal_uInt64 nStreamPos = rInput.Tell(); + sal_uInt32 nLinePos = GetLinePos(); + + sal_uInt32 cChar = 0U; + if( '#' == (nNextCh = GetNextChar()) ) + { + nNextCh = GetNextChar(); + const bool bIsHex( 'x' == nNextCh ); + const bool bIsDecOrHex( bIsHex || rtl::isAsciiDigit(nNextCh) ); + if ( bIsDecOrHex ) + { + if ( bIsHex ) + { + nNextCh = GetNextChar(); + while ( rtl::isAsciiHexDigit(nNextCh) ) + { + cChar = cChar * 16U + + ( nNextCh <= '9' + ? sal_uInt32( nNextCh - '0' ) + : ( nNextCh <= 'F' + ? sal_uInt32( nNextCh - 'A' + 10 ) + : sal_uInt32( nNextCh - 'a' + 10 ) ) ); + nNextCh = GetNextChar(); + } + } + else + { + do + { + cChar = cChar * 10U + sal_uInt32( nNextCh - '0'); + nNextCh = GetNextChar(); + } + while( rtl::isAsciiDigit(nNextCh) ); + } + + if( RTL_TEXTENCODING_DONTKNOW != eSrcEnc && + RTL_TEXTENCODING_UCS2 != eSrcEnc && + RTL_TEXTENCODING_UTF8 != eSrcEnc && + cChar < 256 ) + { + const sal_uInt32 convertFlags = + RTL_TEXTTOUNICODE_FLAGS_UNDEFINED_DEFAULT | + RTL_TEXTTOUNICODE_FLAGS_MBUNDEFINED_DEFAULT | + RTL_TEXTTOUNICODE_FLAGS_INVALID_DEFAULT; + + char cEncodedChar = static_cast<char>(cChar); + cChar = OUString(&cEncodedChar, 1, eSrcEnc, convertFlags).toChar(); + if( 0U == cChar ) + { + // If the character could not be + // converted, because a conversion is not + // available, do no conversion at all. + cChar = cEncodedChar; + } + } + } + else + nNextCh = 0U; + + if (!rtl::isUnicodeCodePoint(cChar) + || (linguistic::IsControlChar(cChar) + && cChar != '\r' && cChar != '\n' && cChar != '\t')) + { + cChar = '?'; + } + } + else if( rtl::isAsciiAlpha( nNextCh ) ) + { + OUStringBuffer sEntityBuffer( MAX_ENTITY_LEN ); + sal_Int32 nPos = 0; + do + { + sEntityBuffer.appendUtf32( nNextCh ); + nPos++; + nNextCh = GetNextChar(); + } + while( nPos < MAX_ENTITY_LEN && rtl::isAsciiAlphanumeric( nNextCh ) && + !rInput.eof() ); + + if( IsParserWorking() && !rInput.eof() ) + { + std::u16string_view sEntity(sEntityBuffer.subView(0, nPos)); + cChar = GetHTMLCharName( sEntity ); + + // not found ( == 0 ): plain text + // or a character which is inserted as attribute + if( 0U == cChar && ';' != nNextCh ) + { + DBG_ASSERT( rInput.Tell() - nStreamPos == + static_cast<sal_uInt64>(nPos+1)*GetCharSize(), + "UTF-8 is failing here" ); + for( sal_Int32 i = nPos-1; i>1; i-- ) + { + nNextCh = sEntityBuffer[i]; + sEntityBuffer.setLength( i ); + sEntity = sEntityBuffer.subView(0, i); + cChar = GetHTMLCharName( sEntity ); + if( cChar ) + { + rInput.SeekRel( -static_cast<sal_Int64> + (nPos-i)*GetCharSize() ); + nlLinePos -= sal_uInt32(nPos-i); + nPos = i; + ClearTxtConvContext(); + break; + } + } + } + + if( !cChar ) // unknown character? + { + // back in stream, insert '&' + // and restart with next character + sTmpBuffer.append( '&' ); + + DBG_ASSERT( rInput.Tell()-nStreamPos == + static_cast<sal_uInt64>(nPos+1)*GetCharSize(), + "Wrong stream position" ); + DBG_ASSERT( nlLinePos-nLinePos == + static_cast<sal_uInt32>(nPos+1), + "Wrong line position" ); + rInput.Seek( nStreamPos ); + nlLinePos = nLinePos; + ClearTxtConvContext(); + break; + } + + assert(cChar != 0); + + // 1 == Non Breaking Space + // 2 == SoftHyphen + + if (cChar == 1 || cChar == 2) + { + if( '>' == cBreak ) + { + // When reading the content of a tag we have + // to change it to ' ' or '-' + if( 1U == cChar ) + cChar = ' '; + else //2U + cChar = '-'; + } + else + { + // If not scanning a tag return token + aToken.append( sTmpBuffer ); + sTmpBuffer.setLength(0); + + if( !aToken.isEmpty() ) + { + // restart with character + nNextCh = '&'; + DBG_ASSERT( rInput.Tell()-nStreamPos == + static_cast<sal_uInt64>(nPos+1)*GetCharSize(), + "Wrong stream position" ); + DBG_ASSERT( nlLinePos-nLinePos == + static_cast<sal_uInt32>(nPos+1), + "Wrong line position" ); + rInput.Seek( nStreamPos ); + nlLinePos = nLinePos; + ClearTxtConvContext(); + return HtmlTokenId::TEXTTOKEN; + } + + // Hack: _GetNextChar shall not read the + // next character + if( ';' != nNextCh ) + aToken.append( " " ); + if( 1U == cChar ) + return HtmlTokenId::NONBREAKSPACE; + else //2U + return HtmlTokenId::SOFTHYPH; + } + } + } + else + nNextCh = 0U; + } + // &{...};-JavaScript-Macros are not supported any longer. + else if( IsParserWorking() ) + { + sTmpBuffer.append( '&' ); + bNextCh = false; + break; + } + + bNextCh = (';' == nNextCh); + if( cBreak=='>' && (cChar=='\\' || cChar=='\'' || + cChar=='\"' || cChar==' ') ) + { + // ' and " have to be escaped within tags to separate + // them from ' and " enclosing options. + // \ has to be escaped as well. + // Space is protected because it's not a delimiter between + // options. + sTmpBuffer.append( '\\' ); + } + if( IsParserWorking() ) + { + if( cChar ) + sTmpBuffer.appendUtf32( cChar ); + } + else if( SvParserState::Pending==eState && '>'!=cBreak ) + { + // Restart with '&', the remainder is returned as + // text token. + if( !aToken.isEmpty() || !sTmpBuffer.isEmpty() ) + { + // _GetNextChar() returns the previous text and + // during the next execution a new character is read. + // Thus we have to position in front of the '&'. + nNextCh = 0U; + rInput.Seek( nStreamPos - GetCharSize() ); + nlLinePos = nLinePos-1; + ClearTxtConvContext(); + bReadNextChar = true; + } + bNextCh = false; + } + } + break; + case '=': + if( '>'==cBreak && !cQuote ) + bEqSignFound = true; + sTmpBuffer.appendUtf32( nNextCh ); + break; + + case '\\': + if( '>'==cBreak ) + { + // mark within tags + sTmpBuffer.append( '\\' ); + } + sTmpBuffer.append( '\\' ); + break; + + case '\"': + case '\'': + if( '>'==cBreak ) + { + if( bEqSignFound ) + cQuote = nNextCh; + else if( cQuote && (cQuote==nNextCh ) ) + cQuote = 0U; + } + sTmpBuffer.appendUtf32( nNextCh ); + bEqSignFound = false; + break; + + case sal_Unicode(EOF): + if( rInput.eof() ) + { + bContinue = false; + } + // else: ignore, not a valid code point + break; + + case '<': + bEqSignFound = false; + if( '>'==cBreak ) + sTmpBuffer.appendUtf32( nNextCh ); + else + bContinue = false; // break, string is together + break; + + case '\f': + if( '>' == cBreak ) + { + // If scanning options treat it like a space, ... + sTmpBuffer.append( ' ' ); + } + else + { + // otherwise it's a separate token. + bContinue = false; + } + break; + + case '\r': + case '\n': + if( '>'==cBreak ) + { + // cr/lf in tag is handled in GetNextToken_() + sTmpBuffer.appendUtf32( nNextCh ); + break; + } + else if( bReadListing || bReadXMP || bReadPRE || bReadTextArea ) + { + bContinue = false; + break; + } + // Reduce sequence of CR/LF/BLANK/TAB to a single blank + [[fallthrough]]; + case '\t': + if( '\t'==nNextCh && bReadPRE && '>'!=cBreak ) + { + // Pass Tabs up in <PRE> + bContinue = false; + break; + } + [[fallthrough]]; + case '\x0b': + if( '\x0b'==nNextCh && (bReadPRE || bReadXMP ||bReadListing) && + '>'!=cBreak ) + { + break; + } + if (!m_bPreserveSpaces) + nNextCh = ' '; + [[fallthrough]]; + case ' ': + if (!m_bPreserveSpaces) + { + sTmpBuffer.appendUtf32(nNextCh); + if ('>' != cBreak && (!bReadListing && !bReadXMP && !bReadPRE && !bReadTextArea)) + { + // Reduce sequences of Blanks/Tabs/CR/LF to a single blank + do + { + nNextCh = GetNextChar(); + if (sal_Unicode(EOF) == nNextCh && rInput.eof()) + { + if (!aToken.isEmpty() || sTmpBuffer.getLength() > 1) + { + // Have seen s.th. aside from blanks? + aToken.append(sTmpBuffer); + sTmpBuffer.setLength(0); + return HtmlTokenId::TEXTTOKEN; + } + else + // Only read blanks: no text must be returned + // and GetNextToken_ has to read until EOF + return HtmlTokenId::NONE; + } + } while (HTML_ISSPACE(nNextCh)); + bNextCh = false; + } + break; + } + [[fallthrough]]; + default: + bEqSignFound = false; + if (nNextCh == cBreak && !cQuote) + bContinue = false; + else + { + do { + if (!linguistic::IsControlChar(nNextCh) || HTML_ISSPACE(nNextCh)) + { + // All remaining characters make their way into the text. + sTmpBuffer.appendUtf32( nNextCh ); + } + + nNextCh = GetNextChar(); + if( ( sal_Unicode(EOF) == nNextCh && rInput.eof() ) || + !IsParserWorking() ) + { + if( !sTmpBuffer.isEmpty() ) + aToken.append( sTmpBuffer ); + return HtmlTokenId::TEXTTOKEN; + } + } while( rtl::isAsciiAlpha( nNextCh ) || rtl::isAsciiDigit( nNextCh ) ); + bNextCh = false; + } + } + + if( bContinue && bNextCh ) + nNextCh = GetNextChar(); + } + + if( !sTmpBuffer.isEmpty() ) + aToken.append( sTmpBuffer ); + + return HtmlTokenId::TEXTTOKEN; +} + +HtmlTokenId HTMLParser::GetNextRawToken() +{ + OUStringBuffer sTmpBuffer( MAX_LEN ); + + if( bEndTokenFound ) + { + // During the last execution we already found the end token, + // thus we don't have to search it again. + bReadScript = false; + bReadStyle = false; + aEndToken.clear(); + bEndTokenFound = false; + + return HtmlTokenId::NONE; + } + + // Default return value: HtmlTokenId::RAWDATA + bool bContinue = true; + HtmlTokenId nToken = HtmlTokenId::RAWDATA; + SaveState( HtmlTokenId::NONE ); + while( bContinue && IsParserWorking() ) + { + bool bNextCh = true; + switch( nNextCh ) + { + case '<': + { + // Maybe we've reached the end. + + // Save what we have read previously... + aToken.append( sTmpBuffer ); + sTmpBuffer.setLength(0); + + // and remember position in stream. + sal_uInt64 nStreamPos = rInput.Tell(); + sal_uInt32 nLineNr = GetLineNr(); + sal_uInt32 nLinePos = GetLinePos(); + + // Start of an end token? + bool bOffState = false; + if( '/' == (nNextCh = GetNextChar()) ) + { + bOffState = true; + nNextCh = GetNextChar(); + } + else if( '!' == nNextCh ) + { + sTmpBuffer.appendUtf32( nNextCh ); + nNextCh = GetNextChar(); + } + + // Read following letters + while( (rtl::isAsciiAlpha(nNextCh) || '-'==nNextCh) && + IsParserWorking() && sTmpBuffer.getLength() < MAX_LEN ) + { + sTmpBuffer.appendUtf32( nNextCh ); + nNextCh = GetNextChar(); + } + + OUString aTok( sTmpBuffer.toString() ); + aTok = aTok.toAsciiLowerCase(); + bool bDone = false; + if( bReadScript || !aEndToken.isEmpty() ) + { + if( !bReadComment ) + { + if( aTok.startsWith( OOO_STRING_SVTOOLS_HTML_comment ) ) + { + bReadComment = true; + } + else + { + // A script has to end with "</SCRIPT>". But + // ">" is optional for security reasons + bDone = bOffState && + ( bReadScript + ? aTok == OOO_STRING_SVTOOLS_HTML_script + : aTok == aEndToken ); + } + } + if( bReadComment && '>'==nNextCh && aTok.endsWith( "--" ) ) + { + // End of comment of style <!-----> + bReadComment = false; + } + } + else + { + // Style sheets can be closed by </STYLE>, </HEAD> or <BODY> + if( bOffState ) + bDone = aTok == OOO_STRING_SVTOOLS_HTML_style || + aTok == OOO_STRING_SVTOOLS_HTML_head; + else + bDone = aTok == OOO_STRING_SVTOOLS_HTML_body; + } + + if( bDone ) + { + // Done! Return the previously read string (if requested) + // and continue. + + bContinue = false; + + // nToken==0 means, GetNextToken_ continues to read + if( aToken.isEmpty() && (bReadStyle || bReadScript) ) + { + // Immediately close environment (or context?) + // and parse the end token + bReadScript = false; + bReadStyle = false; + aEndToken.clear(); + nToken = HtmlTokenId::NONE; + } + else + { + // Keep bReadScript/bReadStyle alive + // and parse end token during next execution + bEndTokenFound = true; + } + + // Move backwards in stream to '<' + rInput.Seek( nStreamPos ); + SetLineNr( nLineNr ); + SetLinePos( nLinePos ); + ClearTxtConvContext(); + nNextCh = '<'; + + // Don't append string to token. + sTmpBuffer.setLength( 0 ); + } + else + { + // remember "</" , everything else we find in the buffer + aToken.append( "<" ); + if( bOffState ) + aToken.append( "/" ); + + bNextCh = false; + } + } + break; + case '-': + sTmpBuffer.appendUtf32( nNextCh ); + if( bReadComment ) + { + bool bTwoMinus = false; + nNextCh = GetNextChar(); + while( '-' == nNextCh && IsParserWorking() ) + { + bTwoMinus = true; + sTmpBuffer.appendUtf32( nNextCh ); + nNextCh = GetNextChar(); + } + + if( '>' == nNextCh && IsParserWorking() && bTwoMinus ) + bReadComment = false; + + bNextCh = false; + } + break; + + case '\r': + // \r\n? closes the current text token (even if it's empty) + nNextCh = GetNextChar(); + if( nNextCh=='\n' ) + nNextCh = GetNextChar(); + bContinue = false; + break; + case '\n': + // \n closes the current text token (even if it's empty) + nNextCh = GetNextChar(); + bContinue = false; + break; + case sal_Unicode(EOF): + // eof closes the current text token and behaves like having read + // an end token + if( rInput.eof() ) + { + bContinue = false; + if( !aToken.isEmpty() || !sTmpBuffer.isEmpty() ) + { + bEndTokenFound = true; + } + else + { + bReadScript = false; + bReadStyle = false; + aEndToken.clear(); + nToken = HtmlTokenId::NONE; + } + } + break; + default: + if (!linguistic::IsControlChar(nNextCh) || nNextCh == '\t') + { + // all remaining characters are appended to the buffer + sTmpBuffer.appendUtf32( nNextCh ); + } + break; + } + + if( !bContinue && !sTmpBuffer.isEmpty() ) + { + aToken.append( sTmpBuffer ); + sTmpBuffer.setLength(0); + } + + if( bContinue && bNextCh ) + nNextCh = GetNextChar(); + } + + if( IsParserWorking() ) + SaveState( HtmlTokenId::NONE ); + else + nToken = HtmlTokenId::NONE; + + return nToken; +} + +// Scan next token +HtmlTokenId HTMLParser::GetNextToken_() +{ + HtmlTokenId nRet = HtmlTokenId::NONE; + sSaveToken.clear(); + + if (mnPendingOffToken != HtmlTokenId::NONE) + { + // HtmlTokenId::<TOKEN>_OFF generated for HtmlTokenId::<TOKEN>_ON + nRet = mnPendingOffToken; + mnPendingOffToken = HtmlTokenId::NONE; + aToken.setLength( 0 ); + return nRet; + } + + // Delete options + maOptions.clear(); + + if( !IsParserWorking() ) // Don't continue if already an error occurred + return HtmlTokenId::NONE; + + bool bReadNextCharSave = bReadNextChar; + if( bReadNextChar ) + { + DBG_ASSERT( !bEndTokenFound, + "Read a character despite </SCRIPT> was read?" ); + nNextCh = GetNextChar(); + if( !IsParserWorking() ) // Don't continue if already an error occurred + return HtmlTokenId::NONE; + bReadNextChar = false; + } + + if( bReadScript || bReadStyle || !aEndToken.isEmpty() ) + { + nRet = GetNextRawToken(); + if( nRet != HtmlTokenId::NONE || !IsParserWorking() ) + return nRet; + } + + do { + bool bNextCh = true; + switch( nNextCh ) + { + case '<': + { + sal_uInt64 nStreamPos = rInput.Tell(); + sal_uInt32 nLineNr = GetLineNr(); + sal_uInt32 nLinePos = GetLinePos(); + + bool bOffState = false; + if( '/' == (nNextCh = GetNextChar()) ) + { + bOffState = true; + nNextCh = GetNextChar(); + } + // Assume '<?' is a start of an XML declaration, ignore it. + if (rtl::isAsciiAlpha(nNextCh) || nNextCh == '!' || nNextCh == '?') + { + OUStringBuffer sTmpBuffer; + do { + sTmpBuffer.appendUtf32( nNextCh ); + nNextCh = GetNextChar(); + if (std::u16string_view(sTmpBuffer) == u"![CDATA[") + break; + if (bFuzzing && sTmpBuffer.getLength() > 1024) + { + SAL_WARN("svtools", "abandoning import for performance reasons with long tokens"); + eState = SvParserState::Error; + break; + } + } while( '>' != nNextCh && '/' != nNextCh && !rtl::isAsciiWhiteSpace( nNextCh ) && + !linguistic::IsControlChar(nNextCh) && + IsParserWorking() && !rInput.eof() ); + + if( !sTmpBuffer.isEmpty() ) + { + aToken.append( sTmpBuffer ); + sTmpBuffer.setLength(0); + } + + // Skip blanks + while( rtl::isAsciiWhiteSpace( nNextCh ) && IsParserWorking() ) + nNextCh = GetNextChar(); + + if( !IsParserWorking() ) + { + if( SvParserState::Pending == eState ) + bReadNextChar = bReadNextCharSave; + break; + } + + // Search token in table: + sSaveToken = aToken; + aToken = aToken.toString().toAsciiLowerCase(); + + if (!maNamespace.isEmpty() && o3tl::starts_with(aToken, maNamespace)) + aToken.remove( 0, maNamespace.getLength()); + + if( HtmlTokenId::NONE == (nRet = GetHTMLToken( aToken )) ) + // Unknown control + nRet = HtmlTokenId::UNKNOWNCONTROL_ON; + + // If it's a token which can be switched off... + if( bOffState ) + { + if( nRet >= HtmlTokenId::ONOFF_START ) + { + // and there is an off token, return off token instead + nRet = static_cast<HtmlTokenId>(static_cast<int>(nRet) + 1); + } + else if( HtmlTokenId::LINEBREAK!=nRet || !maNamespace.isEmpty()) + { + // and there is no off token, return unknown token. + // (except for </BR>, that is treated like <BR>) + // No exception for XHTML, though. + nRet = HtmlTokenId::UNKNOWNCONTROL_OFF; + } + } + + if( nRet == HtmlTokenId::COMMENT ) + { + // fix: due to being case sensitive use sSaveToken as start of comment + // and append a blank. + aToken = sSaveToken; + if( '>'!=nNextCh ) + aToken.append( " " ); + sal_uInt64 nCStreamPos = 0; + sal_uInt32 nCLineNr = 0; + sal_uInt32 nCLinePos = 0; + sal_Int32 nCStrLen = 0; + + bool bDone = false; + // Read until closing -->. If not found restart at first > + sTmpBuffer = aToken; + while( !bDone && !rInput.eof() && IsParserWorking() ) + { + if( '>'==nNextCh ) + { + if( !nCStreamPos ) + { + nCStreamPos = rInput.Tell(); + nCStrLen = sTmpBuffer.getLength(); + nCLineNr = GetLineNr(); + nCLinePos = GetLinePos(); + } + bDone = sTmpBuffer.getLength() >= 2 && sTmpBuffer[sTmpBuffer.getLength() - 2] == '-' && sTmpBuffer[sTmpBuffer.getLength() - 1] == '-'; + if( !bDone ) + sTmpBuffer.appendUtf32(nNextCh); + } + else if (!linguistic::IsControlChar(nNextCh) + || nNextCh == '\r' || nNextCh == '\n' || nNextCh == '\t') + { + sTmpBuffer.appendUtf32(nNextCh); + } + if( !bDone ) + nNextCh = GetNextChar(); + } + aToken = sTmpBuffer; + sTmpBuffer.setLength(0); + if( !bDone && IsParserWorking() && nCStreamPos ) + { + rInput.Seek( nCStreamPos ); + SetLineNr( nCLineNr ); + SetLinePos( nCLinePos ); + ClearTxtConvContext(); + aToken.truncate(nCStrLen); + nNextCh = '>'; + } + } + else if (nRet == HtmlTokenId::CDATA) + { + // Read until the closing ]]>. + bool bDone = false; + while (!bDone && !rInput.eof() && IsParserWorking()) + { + if (nNextCh == '>') + { + if (sTmpBuffer.getLength() >= 2) + { + bDone = sTmpBuffer[sTmpBuffer.getLength() - 2] == ']' + && sTmpBuffer[sTmpBuffer.getLength() - 1] == ']'; + if (bDone) + { + // Ignore ]] at the end. + sTmpBuffer.setLength(sTmpBuffer.getLength() - 2); + } + } + if (!bDone) + { + sTmpBuffer.appendUtf32(nNextCh); + } + } + else if (!linguistic::IsControlChar(nNextCh)) + { + sTmpBuffer.appendUtf32(nNextCh); + } + if (!bDone) + { + nNextCh = GetNextChar(); + } + } + aToken = sTmpBuffer; + sTmpBuffer.setLength(0); + } + else + { + // TokenString not needed anymore + aToken.setLength( 0 ); + } + + // Read until closing '>' + if( '>' != nNextCh && IsParserWorking() ) + { + ScanText( '>' ); + + // fdo#34666 fdo#36080 fdo#36390: closing "/>"?: + // generate pending HtmlTokenId::<TOKEN>_OFF for HtmlTokenId::<TOKEN>_ON + // Do not convert this to a single HtmlTokenId::<TOKEN>_OFF + // which lead to fdo#56772. + if ((nRet >= HtmlTokenId::ONOFF_START) && o3tl::ends_with(aToken, u"/")) + { + mnPendingOffToken = static_cast<HtmlTokenId>(static_cast<int>(nRet) + 1); // HtmlTokenId::<TOKEN>_ON -> HtmlTokenId::<TOKEN>_OFF + aToken.setLength( aToken.getLength()-1 ); // remove trailing '/' + } + if( sal_Unicode(EOF) == nNextCh && rInput.eof() ) + { + // Move back in front of < and restart there. + // Return < as text. + rInput.Seek( nStreamPos ); + SetLineNr( nLineNr ); + SetLinePos( nLinePos ); + ClearTxtConvContext(); + + aToken = "<"; + nRet = HtmlTokenId::TEXTTOKEN; + nNextCh = GetNextChar(); + bNextCh = false; + break; + } + } + if( SvParserState::Pending == eState ) + bReadNextChar = bReadNextCharSave; + } + else + { + if( bOffState ) + { + // simply throw away everything + ScanText( '>' ); + if( sal_Unicode(EOF) == nNextCh && rInput.eof() ) + { + // Move back in front of < and restart there. + // Return < as text. + rInput.Seek( nStreamPos ); + SetLineNr( nLineNr ); + SetLinePos( nLinePos ); + ClearTxtConvContext(); + + aToken = "<"; + nRet = HtmlTokenId::TEXTTOKEN; + nNextCh = GetNextChar(); + bNextCh = false; + break; + } + if( SvParserState::Pending == eState ) + bReadNextChar = bReadNextCharSave; + aToken.setLength( 0 ); + } + else if( '%' == nNextCh ) + { + nRet = HtmlTokenId::UNKNOWNCONTROL_ON; + + sal_uInt64 nCStreamPos = rInput.Tell(); + sal_uInt32 nCLineNr = GetLineNr(), nCLinePos = GetLinePos(); + + bool bDone = false; + // Read until closing %>. If not found restart at first >. + sal_Unicode nLastTokenChar = !aToken.isEmpty() ? aToken[aToken.getLength() - 1] : 0; + OUStringBuffer aTmpBuffer(aToken); + while( !bDone && !rInput.eof() && IsParserWorking() ) + { + bDone = '>'==nNextCh && nLastTokenChar == '%'; + if( !bDone ) + { + aTmpBuffer.appendUtf32(nNextCh); + nLastTokenChar = aTmpBuffer[aTmpBuffer.getLength() - 1]; + nNextCh = GetNextChar(); + } + } + if( !bDone && IsParserWorking() ) + { + rInput.Seek( nCStreamPos ); + SetLineNr( nCLineNr ); + SetLinePos( nCLinePos ); + ClearTxtConvContext(); + aToken = "<%"; + nRet = HtmlTokenId::TEXTTOKEN; + break; + } + aToken = aTmpBuffer; + aTmpBuffer.setLength(0); + if( IsParserWorking() ) + { + sSaveToken = aToken; + aToken.setLength( 0 ); + } + } + else + { + aToken = "<"; + nRet = HtmlTokenId::TEXTTOKEN; + bNextCh = false; + break; + } + } + + if( IsParserWorking() ) + { + bNextCh = '>' == nNextCh; + switch( nRet ) + { + case HtmlTokenId::TEXTAREA_ON: + bReadTextArea = true; + break; + case HtmlTokenId::TEXTAREA_OFF: + bReadTextArea = false; + break; + case HtmlTokenId::SCRIPT_ON: + if( !bReadTextArea ) + bReadScript = true; + break; + case HtmlTokenId::SCRIPT_OFF: + if( !bReadTextArea ) + { + bReadScript = false; + // JavaScript might modify the stream, + // thus the last character has to be read again. + bReadNextChar = true; + bNextCh = false; + } + break; + + case HtmlTokenId::STYLE_ON: + bReadStyle = true; + break; + case HtmlTokenId::STYLE_OFF: + bReadStyle = false; + break; + default: break; + } + } + } + break; + + case sal_Unicode(EOF): + if( rInput.eof() ) + { + eState = SvParserState::Accepted; + nRet = HtmlTokenId(nNextCh); + } + else + { + // Read normal text. + goto scan_text; + } + break; + + case '\f': + // form feeds are passed upwards separately + nRet = HtmlTokenId::LINEFEEDCHAR; // !!! should be FORMFEEDCHAR + break; + + case '\n': + case '\r': + if( bReadListing || bReadXMP || bReadPRE || bReadTextArea ) + { + sal_Unicode c = GetNextChar(); + if( ( '\n' != nNextCh || '\r' != c ) && + ( '\r' != nNextCh || '\n' != c ) ) + { + bNextCh = false; + nNextCh = c; + } + nRet = HtmlTokenId::NEWPARA; + break; + } + [[fallthrough]]; + case '\t': + if( bReadPRE ) + { + nRet = HtmlTokenId::TABCHAR; + break; + } + [[fallthrough]]; + case ' ': + [[fallthrough]]; + default: + +scan_text: + // "normal" text to come + nRet = ScanText(); + bNextCh = 0 == aToken.getLength(); + + // the text should be processed + if( !bNextCh && eState == SvParserState::Pending ) + { + eState = SvParserState::Working; + bReadNextChar = true; + } + + break; + } + + if( bNextCh && SvParserState::Working == eState ) + { + nNextCh = GetNextChar(); + if( SvParserState::Pending == eState && nRet != HtmlTokenId::NONE && HtmlTokenId::TEXTTOKEN != nRet ) + { + bReadNextChar = true; + eState = SvParserState::Working; + } + } + + } while( nRet == HtmlTokenId::NONE && SvParserState::Working == eState ); + + if( SvParserState::Pending == eState ) + nRet = HtmlTokenId::INVALID; // s.th. invalid + + return nRet; +} + +void HTMLParser::UnescapeToken() +{ + sal_Int32 nPos=0; + + bool bEscape = false; + while( nPos < aToken.getLength() ) + { + bool bOldEscape = bEscape; + bEscape = false; + if( '\\'==aToken[nPos] && !bOldEscape ) + { + aToken.remove( nPos, 1 ); + bEscape = true; + } + else + { + nPos++; + } + } +} + +const HTMLOptions& HTMLParser::GetOptions( HtmlOptionId const *pNoConvertToken ) +{ + // If the options for the current token have already been returned, + // return them once again. + if (!maOptions.empty()) + return maOptions; + + sal_Int32 nPos = 0; + while( nPos < aToken.getLength() ) + { + // A letter? Option beginning here. + if( rtl::isAsciiAlpha( aToken[nPos] ) ) + { + HtmlOptionId nToken; + OUString aValue; + sal_Int32 nStt = nPos; + sal_Unicode cChar = 0; + + // Actually only certain characters allowed. + // Netscape only looks for "=" and white space (c.f. + // Mozilla: PA_FetchRequestedNameValues in libparse/pa_mdl.c) + while( nPos < aToken.getLength() ) + { + cChar = aToken[nPos]; + if ( '=' == cChar ||!HTML_ISPRINTABLE(cChar) || rtl::isAsciiWhiteSpace(cChar) ) + break; + nPos++; + } + + OUString sName( aToken.subView( nStt, nPos-nStt ) ); + + // PlugIns require original token name. Convert to lower case only for searching. + nToken = GetHTMLOption( sName.toAsciiLowerCase() ); // Name is ready + SAL_WARN_IF( nToken==HtmlOptionId::UNKNOWN, "svtools", + "GetOption: unknown HTML option '" << sName << "'" ); + bool bStripCRLF = (nToken < HtmlOptionId::SCRIPT_START || + nToken >= HtmlOptionId::SCRIPT_END) && + (!pNoConvertToken || nToken != *pNoConvertToken); + + while( nPos < aToken.getLength() ) + { + cChar = aToken[nPos]; + if ( HTML_ISPRINTABLE(cChar) && !rtl::isAsciiWhiteSpace(cChar) ) + break; + nPos++; + } + + // Option with value? + if( nPos!=aToken.getLength() && '='==cChar ) + { + nPos++; + + while( nPos < aToken.getLength() ) + { + cChar = aToken[nPos]; + if ( HTML_ISPRINTABLE(cChar) && ' ' != cChar && '\t' != cChar && '\r' != cChar && '\n' != cChar ) + break; + nPos++; + } + + if( nPos != aToken.getLength() ) + { + sal_Int32 nLen = 0; + nStt = nPos; + if( ('"'==cChar) || '\''==cChar ) + { + sal_Unicode cEnd = cChar; + nPos++; nStt++; + bool bDone = false; + bool bEscape = false; + while( nPos < aToken.getLength() && !bDone ) + { + bool bOldEscape = bEscape; + bEscape = false; + cChar = aToken[nPos]; + switch( cChar ) + { + case '\r': + case '\n': + if( bStripCRLF ) + aToken.remove( nPos, 1 ); + else + { + nPos++; + nLen++; + } + break; + case '\\': + if( bOldEscape ) + { + nPos++; + nLen++; + } + else + { + aToken.remove( nPos, 1 ); + bEscape = true; + } + break; + case '"': + case '\'': + bDone = !bOldEscape && cChar==cEnd; + if( !bDone ) + { + nPos++; + nLen++; + } + break; + default: + nPos++; + nLen++; + break; + } + } + if( nPos!=aToken.getLength() ) + nPos++; + } + else + { + // More liberal than the standard: allow all printable characters + bool bEscape = false; + bool bDone = false; + while( nPos < aToken.getLength() && !bDone ) + { + bool bOldEscape = bEscape; + bEscape = false; + sal_Unicode c = aToken[nPos]; + switch( c ) + { + case ' ': + bDone = !bOldEscape; + if( !bDone ) + { + nPos++; + nLen++; + } + break; + + case '\t': + case '\r': + case '\n': + bDone = true; + break; + + case '\\': + if( bOldEscape ) + { + nPos++; + nLen++; + } + else + { + aToken.remove( nPos, 1 ); + bEscape = true; + } + break; + + default: + if( HTML_ISPRINTABLE( c ) ) + { + nPos++; + nLen++; + } + else + bDone = true; + break; + } + } + } + + if( nLen ) + aValue = aToken.subView( nStt, nLen ); + } + } + + // Token is known and can be saved + maOptions.emplace_back(nToken, sName, aValue); + + } + else + // Ignore white space and unexpected characters + nPos++; + } + + return maOptions; +} + +HtmlTokenId HTMLParser::FilterPRE( HtmlTokenId nToken ) +{ + switch( nToken ) + { + // in Netscape they only have impact in not empty paragraphs + case HtmlTokenId::PARABREAK_ON: + nToken = HtmlTokenId::LINEBREAK; + [[fallthrough]]; + case HtmlTokenId::LINEBREAK: + case HtmlTokenId::NEWPARA: + nPre_LinePos = 0; + if( bPre_IgnoreNewPara ) + nToken = HtmlTokenId::NONE; + break; + + case HtmlTokenId::TABCHAR: + { + sal_Int32 nSpaces = 8 - (nPre_LinePos % 8); + DBG_ASSERT( aToken.isEmpty(), "Why is the token not empty?" ); + if (aToken.getLength() < nSpaces) + { + using comphelper::string::padToLength; + OUStringBuffer aBuf(aToken); + aToken = padToLength(aBuf, nSpaces, ' '); + } + nPre_LinePos += nSpaces; + nToken = HtmlTokenId::TEXTTOKEN; + } + break; + // Keep those + case HtmlTokenId::TEXTTOKEN: + nPre_LinePos += aToken.getLength(); + break; + + case HtmlTokenId::SELECT_ON: + case HtmlTokenId::SELECT_OFF: + case HtmlTokenId::BODY_ON: + case HtmlTokenId::FORM_ON: + case HtmlTokenId::FORM_OFF: + case HtmlTokenId::INPUT: + case HtmlTokenId::OPTION: + case HtmlTokenId::TEXTAREA_ON: + case HtmlTokenId::TEXTAREA_OFF: + + case HtmlTokenId::IMAGE: + case HtmlTokenId::APPLET_ON: + case HtmlTokenId::APPLET_OFF: + case HtmlTokenId::PARAM: + case HtmlTokenId::EMBED: + + case HtmlTokenId::HEAD1_ON: + case HtmlTokenId::HEAD1_OFF: + case HtmlTokenId::HEAD2_ON: + case HtmlTokenId::HEAD2_OFF: + case HtmlTokenId::HEAD3_ON: + case HtmlTokenId::HEAD3_OFF: + case HtmlTokenId::HEAD4_ON: + case HtmlTokenId::HEAD4_OFF: + case HtmlTokenId::HEAD5_ON: + case HtmlTokenId::HEAD5_OFF: + case HtmlTokenId::HEAD6_ON: + case HtmlTokenId::HEAD6_OFF: + case HtmlTokenId::BLOCKQUOTE_ON: + case HtmlTokenId::BLOCKQUOTE_OFF: + case HtmlTokenId::ADDRESS_ON: + case HtmlTokenId::ADDRESS_OFF: + case HtmlTokenId::HORZRULE: + + case HtmlTokenId::CENTER_ON: + case HtmlTokenId::CENTER_OFF: + case HtmlTokenId::DIVISION_ON: + case HtmlTokenId::DIVISION_OFF: + + case HtmlTokenId::SCRIPT_ON: + case HtmlTokenId::SCRIPT_OFF: + case HtmlTokenId::RAWDATA: + + case HtmlTokenId::TABLE_ON: + case HtmlTokenId::TABLE_OFF: + case HtmlTokenId::CAPTION_ON: + case HtmlTokenId::CAPTION_OFF: + case HtmlTokenId::COLGROUP_ON: + case HtmlTokenId::COLGROUP_OFF: + case HtmlTokenId::COL_ON: + case HtmlTokenId::COL_OFF: + case HtmlTokenId::THEAD_ON: + case HtmlTokenId::THEAD_OFF: + case HtmlTokenId::TFOOT_ON: + case HtmlTokenId::TFOOT_OFF: + case HtmlTokenId::TBODY_ON: + case HtmlTokenId::TBODY_OFF: + case HtmlTokenId::TABLEROW_ON: + case HtmlTokenId::TABLEROW_OFF: + case HtmlTokenId::TABLEDATA_ON: + case HtmlTokenId::TABLEDATA_OFF: + case HtmlTokenId::TABLEHEADER_ON: + case HtmlTokenId::TABLEHEADER_OFF: + + case HtmlTokenId::ANCHOR_ON: + case HtmlTokenId::ANCHOR_OFF: + case HtmlTokenId::BOLD_ON: + case HtmlTokenId::BOLD_OFF: + case HtmlTokenId::ITALIC_ON: + case HtmlTokenId::ITALIC_OFF: + case HtmlTokenId::STRIKE_ON: + case HtmlTokenId::STRIKE_OFF: + case HtmlTokenId::STRIKETHROUGH_ON: + case HtmlTokenId::STRIKETHROUGH_OFF: + case HtmlTokenId::UNDERLINE_ON: + case HtmlTokenId::UNDERLINE_OFF: + case HtmlTokenId::BASEFONT_ON: + case HtmlTokenId::BASEFONT_OFF: + case HtmlTokenId::FONT_ON: + case HtmlTokenId::FONT_OFF: + case HtmlTokenId::BLINK_ON: + case HtmlTokenId::BLINK_OFF: + case HtmlTokenId::SPAN_ON: + case HtmlTokenId::SPAN_OFF: + case HtmlTokenId::SUBSCRIPT_ON: + case HtmlTokenId::SUBSCRIPT_OFF: + case HtmlTokenId::SUPERSCRIPT_ON: + case HtmlTokenId::SUPERSCRIPT_OFF: + case HtmlTokenId::BIGPRINT_ON: + case HtmlTokenId::BIGPRINT_OFF: + case HtmlTokenId::SMALLPRINT_OFF: + case HtmlTokenId::SMALLPRINT_ON: + + case HtmlTokenId::EMPHASIS_ON: + case HtmlTokenId::EMPHASIS_OFF: + case HtmlTokenId::CITATION_ON: + case HtmlTokenId::CITATION_OFF: + case HtmlTokenId::STRONG_ON: + case HtmlTokenId::STRONG_OFF: + case HtmlTokenId::CODE_ON: + case HtmlTokenId::CODE_OFF: + case HtmlTokenId::SAMPLE_ON: + case HtmlTokenId::SAMPLE_OFF: + case HtmlTokenId::KEYBOARD_ON: + case HtmlTokenId::KEYBOARD_OFF: + case HtmlTokenId::VARIABLE_ON: + case HtmlTokenId::VARIABLE_OFF: + case HtmlTokenId::DEFINSTANCE_ON: + case HtmlTokenId::DEFINSTANCE_OFF: + case HtmlTokenId::SHORTQUOTE_ON: + case HtmlTokenId::SHORTQUOTE_OFF: + case HtmlTokenId::LANGUAGE_ON: + case HtmlTokenId::LANGUAGE_OFF: + case HtmlTokenId::AUTHOR_ON: + case HtmlTokenId::AUTHOR_OFF: + case HtmlTokenId::PERSON_ON: + case HtmlTokenId::PERSON_OFF: + case HtmlTokenId::ACRONYM_ON: + case HtmlTokenId::ACRONYM_OFF: + case HtmlTokenId::ABBREVIATION_ON: + case HtmlTokenId::ABBREVIATION_OFF: + case HtmlTokenId::INSERTEDTEXT_ON: + case HtmlTokenId::INSERTEDTEXT_OFF: + case HtmlTokenId::DELETEDTEXT_ON: + case HtmlTokenId::DELETEDTEXT_OFF: + case HtmlTokenId::TELETYPE_ON: + case HtmlTokenId::TELETYPE_OFF: + + break; + + // The remainder is treated as an unknown token. + default: + if( nToken != HtmlTokenId::NONE ) + { + nToken = + ( ((nToken >= HtmlTokenId::ONOFF_START) && isOffToken(nToken)) + ? HtmlTokenId::UNKNOWNCONTROL_OFF + : HtmlTokenId::UNKNOWNCONTROL_ON ); + } + break; + } + + bPre_IgnoreNewPara = false; + + return nToken; +} + +HtmlTokenId HTMLParser::FilterXMP( HtmlTokenId nToken ) +{ + switch( nToken ) + { + case HtmlTokenId::NEWPARA: + if( bPre_IgnoreNewPara ) + nToken = HtmlTokenId::NONE; + [[fallthrough]]; + case HtmlTokenId::TEXTTOKEN: + case HtmlTokenId::NONBREAKSPACE: + case HtmlTokenId::SOFTHYPH: + break; // kept + + default: + if( nToken != HtmlTokenId::NONE ) + { + if( (nToken >= HtmlTokenId::ONOFF_START) && isOffToken(nToken) ) + { + sSaveToken = "</" + sSaveToken; + } + else + sSaveToken = "<" + sSaveToken; + if( !aToken.isEmpty() ) + { + UnescapeToken(); + sSaveToken += " "; + aToken.insert(0, sSaveToken); + } + else + aToken = sSaveToken; + aToken.append( ">" ); + nToken = HtmlTokenId::TEXTTOKEN; + } + break; + } + + bPre_IgnoreNewPara = false; + + return nToken; +} + +HtmlTokenId HTMLParser::FilterListing( HtmlTokenId nToken ) +{ + switch( nToken ) + { + case HtmlTokenId::NEWPARA: + if( bPre_IgnoreNewPara ) + nToken = HtmlTokenId::NONE; + [[fallthrough]]; + case HtmlTokenId::TEXTTOKEN: + case HtmlTokenId::NONBREAKSPACE: + case HtmlTokenId::SOFTHYPH: + break; // kept + + default: + if( nToken != HtmlTokenId::NONE ) + { + nToken = + ( ((nToken >= HtmlTokenId::ONOFF_START) && isOffToken(nToken)) + ? HtmlTokenId::UNKNOWNCONTROL_OFF + : HtmlTokenId::UNKNOWNCONTROL_ON ); + } + break; + } + + bPre_IgnoreNewPara = false; + + return nToken; +} + +bool HTMLParser::InternalImgToPrivateURL( OUString& rURL ) +{ + bool bFound = false; + + if( rURL.startsWith( OOO_STRING_SVTOOLS_HTML_internal_icon ) ) + { + OUString aName( rURL.copy(14) ); + switch( aName[0] ) + { + case 'b': + bFound = aName == OOO_STRING_SVTOOLS_HTML_INT_ICON_baddata; + break; + case 'd': + bFound = aName == OOO_STRING_SVTOOLS_HTML_INT_ICON_delayed; + break; + case 'e': + bFound = aName == OOO_STRING_SVTOOLS_HTML_INT_ICON_embed; + break; + case 'i': + bFound = aName == OOO_STRING_SVTOOLS_HTML_INT_ICON_insecure; + break; + case 'n': + bFound = aName == OOO_STRING_SVTOOLS_HTML_INT_ICON_notfound; + break; + } + } + if( bFound ) + { + OUString sTmp ( rURL ); + rURL = OOO_STRING_SVTOOLS_HTML_private_image; + rURL += sTmp; + } + + return bFound; +} + +namespace { + +enum class HtmlMeta { + NONE = 0, + Author, + Description, + Keywords, + Refresh, + Classification, + Created, + ChangedBy, + Changed, + Generator, + SDFootnote, + SDEndnote, + ContentType +}; + +} + +// <META NAME=xxx> +HTMLOptionEnum<HtmlMeta> const aHTMLMetaNameTable[] = +{ + { OOO_STRING_SVTOOLS_HTML_META_author, HtmlMeta::Author }, + { OOO_STRING_SVTOOLS_HTML_META_changed, HtmlMeta::Changed }, + { OOO_STRING_SVTOOLS_HTML_META_changedby, HtmlMeta::ChangedBy }, + { OOO_STRING_SVTOOLS_HTML_META_classification,HtmlMeta::Classification}, + { OOO_STRING_SVTOOLS_HTML_META_content_type, HtmlMeta::ContentType }, + { OOO_STRING_SVTOOLS_HTML_META_created, HtmlMeta::Created }, + { OOO_STRING_SVTOOLS_HTML_META_description, HtmlMeta::Description }, + { OOO_STRING_SVTOOLS_HTML_META_keywords, HtmlMeta::Keywords }, + { OOO_STRING_SVTOOLS_HTML_META_generator, HtmlMeta::Generator }, + { OOO_STRING_SVTOOLS_HTML_META_refresh, HtmlMeta::Refresh }, + { OOO_STRING_SVTOOLS_HTML_META_sdendnote, HtmlMeta::SDEndnote }, + { OOO_STRING_SVTOOLS_HTML_META_sdfootnote, HtmlMeta::SDFootnote }, + { nullptr, HtmlMeta(0) } +}; + + +void HTMLParser::AddMetaUserDefined( OUString const & ) +{ +} + +bool HTMLParser::ParseMetaOptionsImpl( + const uno::Reference<document::XDocumentProperties> & i_xDocProps, + SvKeyValueIterator *i_pHTTPHeader, + const HTMLOptions& aOptions, + rtl_TextEncoding& o_rEnc ) +{ + OUString aName, aContent; + HtmlMeta nAction = HtmlMeta::NONE; + bool bHTTPEquiv = false, bChanged = false; + + for ( size_t i = aOptions.size(); i; ) + { + const HTMLOption& aOption = aOptions[--i]; + switch ( aOption.GetToken() ) + { + case HtmlOptionId::NAME: + aName = aOption.GetString(); + if ( HtmlMeta::NONE==nAction ) + { + aOption.GetEnum( nAction, aHTMLMetaNameTable ); + } + break; + case HtmlOptionId::HTTPEQUIV: + aName = aOption.GetString(); + aOption.GetEnum( nAction, aHTMLMetaNameTable ); + bHTTPEquiv = true; + break; + case HtmlOptionId::CONTENT: + aContent = aOption.GetString(); + break; + case HtmlOptionId::CHARSET: + { + OString sValue(OUStringToOString(aOption.GetString(), RTL_TEXTENCODING_ASCII_US)); + o_rEnc = GetExtendedCompatibilityTextEncoding(rtl_getTextEncodingFromMimeCharset(sValue.getStr())); + break; + } + default: break; + } + } + + if ( bHTTPEquiv || HtmlMeta::Description != nAction ) + { + // if it is not a Description, remove CRs and LFs from CONTENT + aContent = aContent.replaceAll("\r", "").replaceAll("\n", ""); + } + else + { + // convert line endings for Description + aContent = convertLineEnd(aContent, GetSystemLineEnd()); + } + + if ( bHTTPEquiv && i_pHTTPHeader ) + { + // Netscape seems to just ignore a closing ", so we do too + if ( aContent.endsWith("\"") ) + { + aContent = aContent.copy( 0, aContent.getLength() - 1 ); + } + SvKeyValue aKeyValue( aName, aContent ); + i_pHTTPHeader->Append( aKeyValue ); + } + + switch ( nAction ) + { + case HtmlMeta::Author: + if (i_xDocProps.is()) { + i_xDocProps->setAuthor( aContent ); + bChanged = true; + } + break; + case HtmlMeta::Description: + if (i_xDocProps.is()) { + i_xDocProps->setDescription( aContent ); + bChanged = true; + } + break; + case HtmlMeta::Keywords: + if (i_xDocProps.is()) { + i_xDocProps->setKeywords( + ::comphelper::string::convertCommaSeparated(aContent)); + bChanged = true; + } + break; + case HtmlMeta::Classification: + if (i_xDocProps.is()) { + i_xDocProps->setSubject( aContent ); + bChanged = true; + } + break; + + case HtmlMeta::ChangedBy: + if (i_xDocProps.is()) { + i_xDocProps->setModifiedBy( aContent ); + bChanged = true; + } + break; + + case HtmlMeta::Created: + case HtmlMeta::Changed: + if (i_xDocProps.is() && !aContent.isEmpty()) + { + ::util::DateTime uDT; + bool valid = false; + if (comphelper::string::getTokenCount(aContent, ';') == 2) + { + sal_Int32 nIdx{ 0 }; + Date aDate(o3tl::toInt32(o3tl::getToken(aContent, 0, ';', nIdx))); + auto nTime = o3tl::toInt64(o3tl::getToken(aContent, 0, ';', nIdx)); + if (nTime < 0) + nTime = o3tl::saturating_toggle_sign(nTime); + tools::Time aTime(nTime); + DateTime aDateTime(aDate, aTime); + uDT = aDateTime.GetUNODateTime(); + valid = true; + } + else if (utl::ISO8601parseDateTime(aContent, uDT)) + valid = true; + + if (valid) + { + bChanged = true; + if (HtmlMeta::Created == nAction) + i_xDocProps->setCreationDate(uDT); + else + i_xDocProps->setModificationDate(uDT); + } + } + break; + + case HtmlMeta::Refresh: + DBG_ASSERT( !bHTTPEquiv || i_pHTTPHeader, "Lost Reload-URL because of omitted MUST change." ); + break; + + case HtmlMeta::ContentType: + if ( !aContent.isEmpty() ) + { + o_rEnc = GetEncodingByMIME( aContent ); + } + break; + + case HtmlMeta::NONE: + if ( !bHTTPEquiv ) + { + if (i_xDocProps.is()) + { + uno::Reference<beans::XPropertyContainer> xUDProps + = i_xDocProps->getUserDefinedProperties(); + try { + xUDProps->addProperty(aName, + beans::PropertyAttribute::REMOVABLE, + uno::Any(aContent)); + AddMetaUserDefined(aName); + bChanged = true; + } catch (uno::Exception &) { + // ignore + } + } + } + break; + default: + break; + } + + return bChanged; +} + +bool HTMLParser::ParseMetaOptions( + const uno::Reference<document::XDocumentProperties> & i_xDocProps, + SvKeyValueIterator *i_pHeader ) +{ + HtmlOptionId nContentOption = HtmlOptionId::CONTENT; + rtl_TextEncoding eEnc = RTL_TEXTENCODING_DONTKNOW; + + bool bRet = ParseMetaOptionsImpl( i_xDocProps, i_pHeader, + GetOptions(&nContentOption), + eEnc ); + + // If the encoding is set by a META tag, it may only overwrite the + // current encoding if both, the current and the new encoding, are 1-sal_uInt8 + // encodings. Everything else cannot lead to reasonable results. + if (RTL_TEXTENCODING_DONTKNOW != eEnc && + rtl_isOctetTextEncoding( eEnc ) && + rtl_isOctetTextEncoding( GetSrcEncoding() ) ) + { + eEnc = GetExtendedCompatibilityTextEncoding( eEnc ); + SetSrcEncoding( eEnc ); + } + + return bRet; +} + +rtl_TextEncoding HTMLParser::GetEncodingByMIME( const OUString& rMime ) +{ + OUString sType; + OUString sSubType; + INetContentTypeParameterList aParameters; + if (INetContentTypes::parse(rMime, sType, sSubType, &aParameters)) + { + auto const iter = aParameters.find("charset"_ostr); + if (iter != aParameters.end()) + { + const INetContentTypeParameter * pCharset = &iter->second; + OString sValue(OUStringToOString(pCharset->m_sValue, RTL_TEXTENCODING_ASCII_US)); + return GetExtendedCompatibilityTextEncoding( rtl_getTextEncodingFromMimeCharset( sValue.getStr() ) ); + } + } + return RTL_TEXTENCODING_DONTKNOW; +} + +rtl_TextEncoding HTMLParser::GetEncodingByHttpHeader( SvKeyValueIterator *pHTTPHeader ) +{ + rtl_TextEncoding eRet = RTL_TEXTENCODING_DONTKNOW; + if( pHTTPHeader ) + { + SvKeyValue aKV; + for( bool bCont = pHTTPHeader->GetFirst( aKV ); bCont; + bCont = pHTTPHeader->GetNext( aKV ) ) + { + if( aKV.GetKey().equalsIgnoreAsciiCase( OOO_STRING_SVTOOLS_HTML_META_content_type ) ) + { + if( !aKV.GetValue().isEmpty() ) + { + eRet = HTMLParser::GetEncodingByMIME( aKV.GetValue() ); + } + } + } + } + return eRet; +} + +bool HTMLParser::SetEncodingByHTTPHeader( SvKeyValueIterator *pHTTPHeader ) +{ + bool bRet = false; + rtl_TextEncoding eEnc = HTMLParser::GetEncodingByHttpHeader( pHTTPHeader ); + if(RTL_TEXTENCODING_DONTKNOW != eEnc) + { + SetSrcEncoding( eEnc ); + bRet = true; + } + return bRet; +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |