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202 lines
7.1 KiB
202 lines
7.1 KiB
/***************************************************************************
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* Copyright (C) 2005 by Spiros Georgaras *
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* sngeorgaras@otenet.gr *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include <config.h>
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#include "kfile_mhtml.h"
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#include <kgenericfactory.h>
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#include <kmdcodec.h>
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#include <qstring.h>
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#include <qcstring.h>
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#include <qfile.h>
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#include <qtextstream.h>
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#include <qtextcodec.h>
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typedef KGenericFactory<mhtmlPlugin> mhtmlFactory;
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K_EXPORT_COMPONENT_FACTORY(kfile_mhtml, mhtmlFactory( "kfile_mhtml" ))
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mhtmlPlugin::mhtmlPlugin(QObject *parent, const char *name,
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const QStringList &args)
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: KFilePlugin(parent, name, args)
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{
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KFileMimeTypeInfo* info = addMimeTypeInfo( "application/x-mimearchive" );
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KFileMimeTypeInfo::GroupInfo* group = 0L;
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group = addGroupInfo(info, "mhtmlInfo", i18n("Document Information"));
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KFileMimeTypeInfo::ItemInfo* item;
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item = addItemInfo(group, "Subject", i18n("Subject"), QVariant::String);
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item = addItemInfo(group, "Sender", i18n("Sender"), QVariant::String);
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item = addItemInfo(group, "Recipient", i18n("Recipient"), QVariant::String);
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item = addItemInfo(group, "CopyTo", i18n("CC"), QVariant::String);
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item = addItemInfo(group, "BlindCopyTo", i18n("BCC"), QVariant::String);
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item = addItemInfo(group, "Date", i18n("Date"), QVariant::String);
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}
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bool mhtmlPlugin::readInfo( KFileMetaInfo& info, uint /*what*/)
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{
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QString mSender;
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QString mRecipient;
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QString mCopyTo;
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QString mBlindCopyTo;
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QString mSubject;
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QString mDate;
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bool canUnfold;
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if ( info.path().isEmpty() ) // remote file
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return false;
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QFile f(info.path());
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if (!f.open(IO_ReadOnly)) return false;
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QTextStream stream(&f);
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QString l=stream.readLine();
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int nFieldsFound = 0;
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while(!l.isEmpty()){
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if(l.startsWith("From: ")) {
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mSender=l.mid(6);
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nFieldsFound |= 1;
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canUnfold=TRUE;
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} else if(l.startsWith("To: ")) {
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mRecipient=l.mid(4);
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nFieldsFound |= 2;
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canUnfold=TRUE;
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} else if(l.startsWith("Subject: ")) {
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mSubject=l.mid(9);
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nFieldsFound |= 4;
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canUnfold=TRUE;
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} else if(l.startsWith("Cc: ")) {
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mCopyTo=l.mid(4);
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nFieldsFound |= 8;
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canUnfold=TRUE;
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} else if(l.startsWith("Bcc: ")) {
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mBlindCopyTo=l.mid(5);
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nFieldsFound |= 16;
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canUnfold=TRUE;
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} else if(l.startsWith("Date: ")) {
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mDate=l.mid(6);
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nFieldsFound |= 32;
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canUnfold=FALSE;
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}else if(l.startsWith(" ") || l.startsWith("\t")){
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// unfold field
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if(canUnfold){
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QString tmp=l.stripWhiteSpace();
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if(nFieldsFound & 16) mBlindCopyTo=mBlindCopyTo+" "+tmp;
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else if(nFieldsFound & 8) mCopyTo=mCopyTo+" "+tmp;
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else if(nFieldsFound & 4) mSubject=mSubject+" "+tmp;
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else if(nFieldsFound & 2) mRecipient=mRecipient+" "+tmp;
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else if(nFieldsFound & 1) mSender=mSender+" "+tmp;
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}
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}else canUnfold=FALSE;
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// break out of the loop once the six fields have been found
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if ( nFieldsFound == 32+16+8+4+2+1 )
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break;
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l=stream.readLine();
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}
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f.close();
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KFileMetaInfoGroup group = appendGroup(info, "mhtmlInfo");
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appendItem(group, "Subject", decodeRFC2047Phrase(mSubject,FALSE));
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appendItem(group, "Sender", decodeRFC2047Phrase(mSender));
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appendItem(group, "Recipient", decodeRFC2047Phrase(mRecipient));
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appendItem(group, "CopyTo", decodeRFC2047Phrase(mCopyTo));
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appendItem(group, "BlindCopyTo", decodeRFC2047Phrase(mBlindCopyTo));
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appendItem(group, "Date", mDate);
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return true;
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}
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QString mhtmlPlugin::decodeRFC2047Phrase(const QString &msg, bool removeLessGreater){
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int st=msg.find("=?");
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int en=-1;
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QString msgCopy=msg;
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QString decodedText=msgCopy.left(st);
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QString encodedText=msgCopy.mid(st);
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st=encodedText.find("=?");
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while(st!=-1){
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en=encodedText.find("?=");
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while(encodedText.mid(en+2,1)!=" " && en+2<(int)encodedText.length()) en=encodedText.find("?=",en+1);
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if(en==-1) break;
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decodedText+=encodedText.left(st);
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QString tmp=encodedText.mid(st,en-st+2);
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encodedText=encodedText.mid(en+2);
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decodedText+=decodeRFC2047String(tmp);
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st=encodedText.find("=?",st+1);
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}
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decodedText += encodedText;
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// remove unwanted '<' and '>'
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if(removeLessGreater){
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if(decodedText.stripWhiteSpace().startsWith("<") && decodedText.stripWhiteSpace().endsWith(">")){
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QString tmp=decodedText.stripWhiteSpace();
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tmp=tmp.mid(1,tmp.length()-2);
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decodedText=tmp;
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}else{
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QString dec=decodedText;
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QString tmp;
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st=decodedText.find("<");
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while(st!=-1){
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st=dec.find("<",st);
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if(st==0 || (st!=0 && (dec.mid(st-2,2)==", "))){
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en=dec.find(">",st);
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if(en==-1 && dec.find(",",st)<en){
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st++;
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continue;
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}
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dec=dec.left(st)+dec.mid(st+1,en-st-1)+dec.mid(en+1);
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}else if(st!=-1) st++;
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}
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decodedText=dec;
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}
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}
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return decodedText;
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}
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QString mhtmlPlugin::decodeRFC2047String(const QString &msg){
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QString charset;
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QString encoding;
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QString notEncodedText;
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QString encodedText;
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QString decodedText;
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int encEnd=0;
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if(msg.startsWith("=?") && (encEnd=msg.findRev("?="))!=-1){
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notEncodedText=msg.mid(encEnd+2);
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encodedText=msg.left(encEnd);
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encodedText=encodedText.mid(2,encodedText.length()-2);
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int questionMark=encodedText.find('?');
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if(questionMark==-1) return msg;
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charset=encodedText.left(questionMark).lower();
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encoding=encodedText.mid(questionMark+1,1).lower();
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if(encoding!="b" && encoding!="q") return msg;
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encodedText=encodedText.mid(questionMark+3);
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if(charset.find(" ")!=-1 && encodedText.find(" ")!=-1) return msg;
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QCString tmpIn;
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QCString tmpOut;
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tmpIn = encodedText.local8Bit();
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if(encoding=="q")tmpOut=KCodecs::quotedPrintableDecode(tmpIn);
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else tmpOut=KCodecs::base64Decode(tmpIn);
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if(charset!="us-ascii"){
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QTextCodec *codec = QTextCodec::codecForName(charset.local8Bit());
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if(!codec) return msg;
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decodedText=codec->toUnicode(tmpOut);
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decodedText=decodedText.replace("_"," ");
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}else decodedText=tmpOut.replace("_"," ");
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return decodedText + notEncodedText;
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}else return msg;
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}
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#include "kfile_mhtml.moc"
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