kmail

kmmsgpart.cpp

00001 // kmmsgpart.cpp
00002 
00003 #include <config.h>
00004 #include <kmimemagic.h>
00005 #include <kmimetype.h>
00006 #include <kdebug.h>
00007 #include <kmdcodec.h>
00008 
00009 #include "kmmsgpart.h"
00010 #include "kmkernel.h"
00011 #include "kmmessage.h"
00012 #include "globalsettings.h"
00013 
00014 #include <kasciistringtools.h>
00015 #include <kmime_charfreq.h>
00016 #include <kmime_codecs.h>
00017 #include <mimelib/enum.h>
00018 #include <mimelib/utility.h>
00019 #include <mimelib/string.h>
00020 
00021 #include <kiconloader.h>
00022 #include <qtextcodec.h>
00023 
00024 #include <assert.h>
00025 
00026 using namespace KMime;
00027 
00028 //-----------------------------------------------------------------------------
00029 KMMessagePart::KMMessagePart()
00030   : mType("text"), mSubtype("plain"), mCte("7bit"), mBodyDecodedSize(0),
00031     mParent(0), mLoadHeaders(false), mLoadPart(false)
00032 {
00033 }
00034 
00035 //-----------------------------------------------------------------------------
00036 KMMessagePart::KMMessagePart( QDataStream & stream )
00037   : mParent(0), mLoadHeaders(false), mLoadPart(false)
00038 {
00039   unsigned long size;
00040   stream >> mOriginalContentTypeStr >> mName >> mContentDescription
00041     >> mContentDisposition >> mCte >> size >> mPartSpecifier;
00042 
00043   KPIM::kAsciiToLower( mContentDisposition.data() );
00044   KPIM::kAsciiToUpper( mOriginalContentTypeStr.data() );
00045 
00046   // set the type
00047   int sep = mOriginalContentTypeStr.find('/');
00048   mType = mOriginalContentTypeStr.left(sep);
00049   mSubtype = mOriginalContentTypeStr.mid(sep+1);
00050 
00051   mBodyDecodedSize = size;
00052 }
00053 
00054 
00055 //-----------------------------------------------------------------------------
00056 KMMessagePart::~KMMessagePart()
00057 {
00058 }
00059 
00060 
00061 //-----------------------------------------------------------------------------
00062 void KMMessagePart::clear()
00063 {
00064   mOriginalContentTypeStr = QCString();
00065   mType = "text";
00066   mSubtype = "plain";
00067   mCte = "7bit";
00068   mContentDescription = QCString();
00069   mContentDisposition = QCString();
00070   mBody.truncate( 0 );
00071   mAdditionalCTypeParamStr = QCString();
00072   mName = QString::null;
00073   mParameterAttribute = QCString();
00074   mParameterValue = QString::null;
00075   mCharset = QCString();
00076   mPartSpecifier = QString::null;
00077   mBodyDecodedSize = 0;
00078   mParent = 0;
00079   mLoadHeaders = false;
00080   mLoadPart = false;
00081 }
00082 
00083 
00084 //-----------------------------------------------------------------------------
00085 void KMMessagePart::duplicate( const KMMessagePart & msgPart )
00086 {
00087   // copy the data of msgPart
00088   *this = msgPart;
00089   // detach the explicitely shared QByteArray
00090   mBody.detach();
00091 }
00092 
00093 //-----------------------------------------------------------------------------
00094 int KMMessagePart::decodedSize(void) const
00095 {
00096   if (mBodyDecodedSize < 0)
00097     mBodyDecodedSize = bodyDecodedBinary().size();
00098   return mBodyDecodedSize;
00099 }
00100 
00101 
00102 //-----------------------------------------------------------------------------
00103 void KMMessagePart::setBody(const QCString &aStr)
00104 {
00105   mBody.duplicate( aStr.data(), aStr.length() );
00106 
00107   int enc = cte();
00108   if (enc == DwMime::kCte7bit || enc == DwMime::kCte8bit || enc == DwMime::kCteBinary)
00109     mBodyDecodedSize = mBody.size();
00110   else
00111     mBodyDecodedSize = -1; // Can't know the decoded size
00112 }
00113 
00114 void KMMessagePart::setBodyFromUnicode( const QString & str ) {
00115   QCString encoding = KMMsgBase::autoDetectCharset( charset(), KMMessage::preferredCharsets(), str );
00116   if ( encoding.isEmpty() )
00117     encoding = "utf-8";
00118   const QTextCodec * codec = KMMsgBase::codecForName( encoding );
00119   assert( codec );
00120   QValueList<int> dummy;
00121   setCharset( encoding );
00122   setBodyAndGuessCte( codec->fromUnicode( str ), dummy, false /* no 8bit */ );
00123 }
00124 
00125 const QTextCodec * KMMessagePart::codec() const {
00126   const QTextCodec * c = KMMsgBase::codecForName( charset() );
00127 
00128   if ( !c ) {
00129     // Ok, no override and nothing in the message, let's use the fallback
00130     // the user configured
00131     c = KMMsgBase::codecForName( GlobalSettings::self()->fallbackCharacterEncoding().latin1() );
00132   }
00133   if ( !c )
00134     // no charset means us-ascii (RFC 2045), so using local encoding should
00135     // be okay
00136     c = kmkernel->networkCodec();
00137   assert( c );
00138   return c;
00139 }
00140 
00141 QString KMMessagePart::bodyToUnicode(const QTextCodec* codec) const {
00142   if ( !codec )
00143     // No codec was given, so try the charset in the mail
00144     codec = this->codec();
00145   assert( codec );
00146 
00147   return codec->toUnicode( bodyDecoded() );
00148 }
00149 
00150 void KMMessagePart::setCharset( const QCString & c ) {
00151   if ( type() != DwMime::kTypeText )
00152     kdWarning()
00153       << "KMMessagePart::setCharset(): trying to set a charset for a non-textual mimetype." << endl
00154       << "Fix this caller:" << endl
00155       << "====================================================================" << endl
00156       << kdBacktrace( 5 ) << endl
00157       << "====================================================================" << endl;
00158   mCharset = c;
00159 }
00160 
00161 //-----------------------------------------------------------------------------
00162 void KMMessagePart::setBodyEncoded(const QCString& aStr)
00163 {
00164   mBodyDecodedSize = aStr.length();
00165 
00166   switch (cte())
00167   {
00168   case DwMime::kCteQuotedPrintable:
00169   case DwMime::kCteBase64:
00170     {
00171       Codec * codec = Codec::codecForName( cteStr() );
00172       assert( codec );
00173       // we can't use the convenience function here, since aStr is not
00174       // a QByteArray...:
00175       mBody.resize( codec->maxEncodedSizeFor( mBodyDecodedSize ) );
00176       QCString::ConstIterator iit = aStr.data();
00177       QCString::ConstIterator iend = aStr.data() + mBodyDecodedSize;
00178       QByteArray::Iterator oit = mBody.begin();
00179       QByteArray::ConstIterator oend = mBody.end();
00180       if ( !codec->encode( iit, iend, oit, oend ) )
00181     kdWarning(5006) << codec->name()
00182             << " codec lies about it's maxEncodedSizeFor( "
00183             << mBodyDecodedSize << " ). Result truncated!" << endl;
00184       mBody.truncate( oit - mBody.begin() );
00185       break;
00186     }
00187   default:
00188     kdWarning(5006) << "setBodyEncoded: unknown encoding '" << cteStr()
00189             << "'. Assuming binary." << endl;
00190   case DwMime::kCte7bit:
00191   case DwMime::kCte8bit:
00192   case DwMime::kCteBinary:
00193     mBody.duplicate( aStr.data(), mBodyDecodedSize );
00194     break;
00195   }
00196 }
00197 
00198 void KMMessagePart::setBodyAndGuessCte(const QByteArray& aBuf,
00199                        QValueList<int> & allowedCte,
00200                        bool allow8Bit,
00201                                        bool willBeSigned )
00202 {
00203   mBodyDecodedSize = aBuf.size();
00204 
00205   CharFreq cf( aBuf ); // save to pass null arrays...
00206 
00207   allowedCte = KMMessage::determineAllowedCtes( cf, allow8Bit, willBeSigned );
00208 
00209 #ifndef NDEBUG
00210   DwString dwCte;
00211   DwCteEnumToStr(allowedCte[0], dwCte);
00212   kdDebug(5006) << "CharFreq returned " << cf.type() << "/"
00213         << cf.printableRatio() << " and I chose "
00214         << dwCte.c_str() << endl;
00215 #endif
00216 
00217   setCte( allowedCte[0] ); // choose best fitting
00218   setBodyEncodedBinary( aBuf );
00219 }
00220 
00221 void KMMessagePart::setBodyAndGuessCte(const QCString& aBuf,
00222                        QValueList<int> & allowedCte,
00223                        bool allow8Bit,
00224                                        bool willBeSigned )
00225 {
00226   mBodyDecodedSize = aBuf.length();
00227 
00228   CharFreq cf( aBuf.data(), mBodyDecodedSize ); // save to pass null strings
00229 
00230   allowedCte = KMMessage::determineAllowedCtes( cf, allow8Bit, willBeSigned );
00231 
00232 #ifndef NDEBUG
00233   DwString dwCte;
00234   DwCteEnumToStr(allowedCte[0], dwCte);
00235   kdDebug(5006) << "CharFreq returned " << cf.type() << "/"
00236         << cf.printableRatio() << " and I chose "
00237         << dwCte.c_str() << endl;
00238 #endif
00239 
00240   setCte( allowedCte[0] ); // choose best fitting
00241   setBodyEncoded( aBuf );
00242 }
00243 
00244 //-----------------------------------------------------------------------------
00245 void KMMessagePart::setBodyEncodedBinary(const QByteArray& aStr)
00246 {
00247   mBodyDecodedSize = aStr.size();
00248   if (aStr.isEmpty())
00249   {
00250     mBody.resize(0);
00251     return;
00252   }
00253 
00254   switch (cte())
00255   {
00256   case DwMime::kCteQuotedPrintable:
00257   case DwMime::kCteBase64:
00258     {
00259       Codec * codec = Codec::codecForName( cteStr() );
00260       assert( codec );
00261       // Nice: We can use the convenience function :-)
00262       mBody = codec->encode( aStr );
00263       break;
00264     }
00265   default:
00266     kdWarning(5006) << "setBodyEncodedBinary: unknown encoding '" << cteStr()
00267             << "'. Assuming binary." << endl;
00268   case DwMime::kCte7bit:
00269   case DwMime::kCte8bit:
00270   case DwMime::kCteBinary:
00271     mBody.duplicate( aStr );
00272     break;
00273   }
00274 }
00275 
00276 
00277 //-----------------------------------------------------------------------------
00278 QByteArray KMMessagePart::bodyDecodedBinary() const
00279 {
00280   if (mBody.isEmpty()) return QByteArray();
00281   QByteArray result;
00282 
00283   switch (cte())
00284   {
00285     case DwMime::kCte7bit:
00286     case DwMime::kCte8bit:
00287     case DwMime::kCteBinary:
00288       result.duplicate(mBody);
00289       break;
00290     default:
00291       if ( const Codec * codec = Codec::codecForName( cteStr() ) )
00292         // Nice: we can use the convenience function :-)
00293         result = codec->decode( mBody );
00294       else {
00295         kdWarning(5006) << "bodyDecodedBinary: unknown encoding '" << cteStr()
00296                         << "'. Assuming binary." << endl;
00297     result.duplicate(mBody);
00298       }
00299   }
00300 
00301   assert( mBodyDecodedSize < 0
00302       || (unsigned int)mBodyDecodedSize == result.size() );
00303   if ( mBodyDecodedSize < 0 )
00304     mBodyDecodedSize = result.size(); // cache the decoded size.
00305 
00306   return result;
00307 }
00308 
00309 QCString KMMessagePart::bodyDecoded(void) const
00310 {
00311   if (mBody.isEmpty()) return QCString("");
00312   bool decodeBinary = false;
00313   QCString result;
00314   int len;
00315 
00316   switch (cte())
00317   {
00318     case DwMime::kCte7bit:
00319     case DwMime::kCte8bit:
00320     case DwMime::kCteBinary:
00321     {
00322       decodeBinary = true;
00323       break;
00324     }
00325     default:
00326       if ( const Codec * codec = Codec::codecForName( cteStr() ) ) {
00327         // We can't use the codec convenience functions, since we must
00328         // return a QCString, not a QByteArray:
00329         int bufSize = codec->maxDecodedSizeFor( mBody.size() ) + 1; // trailing NUL
00330         result.resize( bufSize );
00331         QByteArray::ConstIterator iit = mBody.begin();
00332         QCString::Iterator oit = result.begin();
00333         QCString::ConstIterator oend = result.begin() + bufSize;
00334         if ( !codec->decode( iit, mBody.end(), oit, oend ) )
00335           kdWarning(5006) << codec->name()
00336                           << " lies about it's maxDecodedSizeFor( "
00337                           << mBody.size() << " ). Result truncated!" << endl;
00338         len = oit - result.begin();
00339         result.truncate( len ); // adds trailing NUL
00340       } else {
00341         kdWarning(5006) << "bodyDecoded: unknown encoding '" << cteStr()
00342                         << "'. Assuming binary." << endl;
00343         decodeBinary = true;
00344       }
00345   }
00346 
00347   if ( decodeBinary ) {
00348     len = mBody.size();
00349     result.resize( len+1 /* trailing NUL */ );
00350     memcpy(result.data(), mBody.data(), len);
00351     result[len] = 0;
00352   }
00353 
00354   kdWarning( result.length() != (unsigned int)len, 5006 )
00355     << "KMMessagePart::bodyDecoded(): body is binary but used as text!" << endl;
00356 
00357   result = result.replace( "\r\n", "\n" ); // CRLF -> LF conversion
00358 
00359   assert( mBodyDecodedSize < 0 || mBodyDecodedSize == len );
00360   if ( mBodyDecodedSize < 0 )
00361     mBodyDecodedSize = len; // cache decoded size
00362 
00363   return result;
00364 }
00365 
00366 
00367 //-----------------------------------------------------------------------------
00368 void KMMessagePart::magicSetType(bool aAutoDecode)
00369 {
00370   KMimeMagic::self()->setFollowLinks( true ); // is it necessary ?
00371 
00372   const QByteArray body = ( aAutoDecode ) ? bodyDecodedBinary() : mBody ;
00373   KMimeMagicResult * result = KMimeMagic::self()->findBufferType( body );
00374 
00375   QString mimetype = result->mimeType();
00376   const int sep = mimetype.find('/');
00377   mType = mimetype.left(sep).latin1();
00378   mSubtype = mimetype.mid(sep+1).latin1();
00379 }
00380 
00381 
00382 //-----------------------------------------------------------------------------
00383 QString KMMessagePart::iconName() const
00384 {
00385   QCString mimeType( mType + "/" + mSubtype );
00386   KPIM::kAsciiToLower( mimeType.data() );
00387   QString fileName =
00388     KMimeType::mimeType( mimeType )->icon( QString::null, false );
00389   fileName =
00390     KGlobal::instance()->iconLoader()->iconPath( fileName, KIcon::Desktop );
00391   return fileName;
00392 }
00393 
00394 
00395 //-----------------------------------------------------------------------------
00396 int KMMessagePart::type() const {
00397   return DwTypeStrToEnum(DwString(mType));
00398 }
00399 
00400 
00401 //-----------------------------------------------------------------------------
00402 void KMMessagePart::setType(int aType)
00403 {
00404   DwString dwType;
00405   DwTypeEnumToStr(aType, dwType);
00406   mType = dwType.c_str();
00407 }
00408 
00409 //-----------------------------------------------------------------------------
00410 int KMMessagePart::subtype() const {
00411   return DwSubtypeStrToEnum(DwString(mSubtype));
00412 }
00413 
00414 
00415 //-----------------------------------------------------------------------------
00416 void KMMessagePart::setSubtype(int aSubtype)
00417 {
00418   DwString dwSubtype;
00419   DwSubtypeEnumToStr(aSubtype, dwSubtype);
00420   mSubtype = dwSubtype.c_str();
00421 }
00422 
00423 //-----------------------------------------------------------------------------
00424 QCString KMMessagePart::parameterAttribute(void) const
00425 {
00426   return mParameterAttribute;
00427 }
00428 
00429 //-----------------------------------------------------------------------------
00430 QString KMMessagePart::parameterValue(void) const
00431 {
00432   return mParameterValue;
00433 }
00434 
00435 //-----------------------------------------------------------------------------
00436 void KMMessagePart::setParameter(const QCString &attribute,
00437                                  const QString &value)
00438 {
00439   mParameterAttribute = attribute;
00440   mParameterValue = value;
00441 }
00442 
00443 //-----------------------------------------------------------------------------
00444 QCString KMMessagePart::contentTransferEncodingStr(void) const
00445 {
00446   return mCte;
00447 }
00448 
00449 
00450 //-----------------------------------------------------------------------------
00451 int KMMessagePart::contentTransferEncoding(void) const
00452 {
00453   return DwCteStrToEnum(DwString(mCte));
00454 }
00455 
00456 
00457 //-----------------------------------------------------------------------------
00458 void KMMessagePart::setContentTransferEncodingStr(const QCString &aStr)
00459 {
00460     mCte = aStr;
00461 }
00462 
00463 
00464 //-----------------------------------------------------------------------------
00465 void KMMessagePart::setContentTransferEncoding(int aCte)
00466 {
00467   DwString dwCte;
00468   DwCteEnumToStr(aCte, dwCte);
00469   mCte = dwCte.c_str();
00470 
00471 }
00472 
00473 
00474 //-----------------------------------------------------------------------------
00475 QString KMMessagePart::contentDescription(void) const
00476 {
00477   return KMMsgBase::decodeRFC2047String(mContentDescription);
00478 }
00479 
00480 
00481 //-----------------------------------------------------------------------------
00482 void KMMessagePart::setContentDescription(const QString &aStr)
00483 {
00484   QCString encoding = KMMsgBase::autoDetectCharset(charset(),
00485     KMMessage::preferredCharsets(), aStr);
00486   if (encoding.isEmpty()) encoding = "utf-8";
00487   mContentDescription = KMMsgBase::encodeRFC2047String(aStr, encoding);
00488 }
00489 
00490 
00491 //-----------------------------------------------------------------------------
00492 QString KMMessagePart::fileName(void) const
00493 {
00494   bool bRFC2231encoded = false;
00495 
00496   // search the start of the filename
00497   int startOfFilename = mContentDisposition.find("filename*=", 0, FALSE);
00498   if (startOfFilename >= 0) {
00499     bRFC2231encoded = true;
00500     startOfFilename += 10;
00501   }
00502   else {
00503     startOfFilename = mContentDisposition.find("filename=", 0, FALSE);
00504     if (startOfFilename < 0)
00505       return QString::null;
00506     startOfFilename += 9;
00507   }
00508 
00509   // search the end of the filename
00510   int endOfFilename;
00511   if ( '"' == mContentDisposition[startOfFilename] ) {
00512     startOfFilename++; // the double quote isn't part of the filename
00513     endOfFilename = mContentDisposition.find('"', startOfFilename) - 1;
00514   }
00515   else {
00516     endOfFilename = mContentDisposition.find(';', startOfFilename) - 1;
00517   }
00518   if (endOfFilename < 0)
00519     endOfFilename = 32767;
00520 
00521   const QCString str = mContentDisposition.mid(startOfFilename,
00522                                 endOfFilename-startOfFilename+1)
00523                            .stripWhiteSpace();
00524 
00525   if (bRFC2231encoded)
00526     return KMMsgBase::decodeRFC2231String(str);
00527   else
00528     return KMMsgBase::decodeRFC2047String(str);
00529 }
00530 
00531 
00532 
00533 QCString KMMessagePart::body() const
00534 {
00535   return QCString( mBody.data(), mBody.size() + 1 ); // space for trailing NUL
00536 }
00537 
KDE Home | KDE Accessibility Home | Description of Access Keys