kmail

kmmsgbase.cpp

00001 // kmmsgbase.cpp
00002 
00003 #include <config.h>
00004 
00005 #include "globalsettings.h"
00006 #include "kmmsgbase.h"
00007 
00008 #include "kmfolderindex.h"
00009 #include "kmfolder.h"
00010 #include "kmheaders.h"
00011 #include "kmmsgdict.h"
00012 #include "messageproperty.h"
00013 using KMail::MessageProperty;
00014 
00015 #include <kdebug.h>
00016 #include <kglobal.h>
00017 #include <kcharsets.h>
00018 #include <kasciistringtools.h>
00019 #include <kmdcodec.h>
00020 #include <krfcdate.h>
00021 
00022 #include <mimelib/mimepp.h>
00023 #include <kmime_codecs.h>
00024 
00025 #include <qtextcodec.h>
00026 #include <qdeepcopy.h>
00027 #include <qregexp.h>
00028 
00029 #include <ctype.h>
00030 #include <stdlib.h>
00031 #include <unistd.h>
00032 
00033 #ifdef HAVE_BYTESWAP_H
00034 #include <byteswap.h>
00035 #endif
00036 
00037 // We define functions as kmail_swap_NN so that we don't get compile errors
00038 // on platforms where bswap_NN happens to be a function instead of a define.
00039 
00040 /* Swap bytes in 16 bit value.  */
00041 #ifdef bswap_16
00042 #define kmail_swap_16(x) bswap_16(x)
00043 #else
00044 #define kmail_swap_16(x) \
00045      ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
00046 #endif
00047 
00048 /* Swap bytes in 32 bit value.  */
00049 #ifdef bswap_32
00050 #define kmail_swap_32(x) bswap_32(x)
00051 #else
00052 #define kmail_swap_32(x) \
00053      ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >>  8) |           \
00054       (((x) & 0x0000ff00) <<  8) | (((x) & 0x000000ff) << 24))
00055 #endif
00056 
00057 /* Swap bytes in 64 bit value.  */
00058 #ifdef bswap_64
00059 #define kmail_swap_64(x) bswap_64(x)
00060 #else
00061 #define kmail_swap_64(x) \
00062      ((((x) & 0xff00000000000000ull) >> 56)                   \
00063       | (((x) & 0x00ff000000000000ull) >> 40)                     \
00064       | (((x) & 0x0000ff0000000000ull) >> 24)                     \
00065       | (((x) & 0x000000ff00000000ull) >> 8)                      \
00066       | (((x) & 0x00000000ff000000ull) << 8)                      \
00067       | (((x) & 0x0000000000ff0000ull) << 24)                     \
00068       | (((x) & 0x000000000000ff00ull) << 40)                     \
00069       | (((x) & 0x00000000000000ffull) << 56))
00070 #endif
00071 
00072 //-----------------------------------------------------------------------------
00073 KMMsgBase::KMMsgBase(KMFolder* aParentFolder)
00074   : mParent( aParentFolder ), mIndexOffset( 0 ),
00075     mIndexLength( 0 ), mDirty( false ), mEnableUndo( false ), mStatus( KMMsgStatusUnknown )
00076 {
00077 }
00078 
00079 
00080 //-----------------------------------------------------------------------------
00081 KMMsgBase::~KMMsgBase()
00082 {
00083   MessageProperty::forget( this );
00084 }
00085 
00086 KMFolderIndex* KMMsgBase::storage() const
00087 {
00088   // TODO: How did this ever work? What about KMFolderSearch that does
00089   // not inherit KMFolderIndex?
00090   if( mParent )
00091     return static_cast<KMFolderIndex*>( mParent->storage() );
00092   return 0;
00093 }
00094 
00095 //-----------------------------------------------------------------------------
00096 void KMMsgBase::assign(const KMMsgBase* other)
00097 {
00098   mParent = other->mParent;
00099   mDirty  = other->mDirty;
00100   mIndexOffset = other->mIndexOffset;
00101   mIndexLength = other->mIndexLength;
00102 }
00103 
00104 //-----------------------------------------------------------------------------
00105 KMMsgBase& KMMsgBase::operator=(const KMMsgBase& other)
00106 {
00107   assign(&other);
00108   return *this;
00109 }
00110 
00111 
00112 //----------------------------------------------------------------------------
00113 KMMsgBase::KMMsgBase( const KMMsgBase& other )
00114 {
00115     assign( &other );
00116 }
00117 
00118 //-----------------------------------------------------------------------------
00119 bool KMMsgBase::isMessage(void) const
00120 {
00121   return false;
00122 }
00123 //-----------------------------------------------------------------------------
00124 void KMMsgBase::toggleStatus(const KMMsgStatus aStatus, int idx)
00125 {
00126   mDirty = true;
00127   KMMsgStatus oldStatus = status();
00128   if ( status() & aStatus ) {
00129     mStatus &= ~aStatus;
00130   } else {
00131     mStatus |= aStatus;
00132     // Ignored and Watched are toggleable, yet mutually exclusive.
00133     // That is an arbitrary restriction on my part. HAR HAR HAR :) -till
00134     if (aStatus == KMMsgStatusWatched)
00135       mStatus &= ~KMMsgStatusIgnored;
00136     if (aStatus == KMMsgStatusIgnored)
00137       mStatus &= ~KMMsgStatusWatched;
00138     if (aStatus == KMMsgStatusSpam)
00139       mStatus &= ~KMMsgStatusHam;
00140     if (aStatus == KMMsgStatusHam)
00141       mStatus &= ~KMMsgStatusSpam;
00142   }
00143   if (storage()) {
00144      if (idx < 0)
00145        idx = storage()->find( this );
00146      storage()->msgStatusChanged( oldStatus, status(), idx );
00147      storage()->headerOfMsgChanged(this, idx);
00148   }
00149 
00150 }
00151 
00152 //-----------------------------------------------------------------------------
00153 void KMMsgBase::setStatus(const KMMsgStatus aStatus, int idx)
00154 {
00155   mDirty = true;
00156   KMMsgStatus oldStatus = status();
00157   switch (aStatus) {
00158     case KMMsgStatusRead:
00159       // Unset unread and new, set read
00160       mStatus &= ~KMMsgStatusUnread;
00161       mStatus &= ~KMMsgStatusNew;
00162       mStatus |= KMMsgStatusRead;
00163       break;
00164 
00165     case KMMsgStatusUnread:
00166       // unread overrides read
00167       mStatus &= ~KMMsgStatusOld;
00168       mStatus &= ~KMMsgStatusRead;
00169       mStatus &= ~KMMsgStatusNew;
00170       mStatus |= KMMsgStatusUnread;
00171       break;
00172 
00173     case KMMsgStatusOld:
00174       // old can't be new or unread
00175       mStatus &= ~KMMsgStatusNew;
00176       mStatus &= ~KMMsgStatusUnread;
00177       mStatus |= KMMsgStatusOld;
00178       break;
00179 
00180     case KMMsgStatusNew:
00181       // new overrides old and read
00182       mStatus &= ~KMMsgStatusOld;
00183       mStatus &= ~KMMsgStatusRead;
00184       mStatus &= ~KMMsgStatusUnread;
00185       mStatus |= KMMsgStatusNew;
00186       break;
00187 
00188     case KMMsgStatusDeleted:
00189       mStatus |= KMMsgStatusDeleted;
00190       break;
00191 
00192     case KMMsgStatusReplied:
00193       mStatus |= KMMsgStatusReplied;
00194       break;
00195 
00196     case KMMsgStatusForwarded:
00197       mStatus |= KMMsgStatusForwarded;
00198       break;
00199 
00200     case KMMsgStatusQueued:
00201       mStatus |= KMMsgStatusQueued;
00202       break;
00203 
00204     case KMMsgStatusTodo:
00205       mStatus |= KMMsgStatusTodo;
00206       break;
00207 
00208     case KMMsgStatusSent:
00209       mStatus &= ~KMMsgStatusQueued;
00210       mStatus &= ~KMMsgStatusUnread;
00211       mStatus &= ~KMMsgStatusNew;
00212       mStatus |= KMMsgStatusSent;
00213       break;
00214 
00215     case KMMsgStatusFlag:
00216       mStatus |= KMMsgStatusFlag;
00217       break;
00218 
00219     // Watched and ignored are mutually exclusive
00220     case KMMsgStatusWatched:
00221       mStatus &= ~KMMsgStatusIgnored;
00222       mStatus |= KMMsgStatusWatched;
00223       break;
00224 
00225     case KMMsgStatusIgnored:
00226       mStatus &= ~KMMsgStatusWatched;
00227       mStatus |= KMMsgStatusIgnored;
00228       break;
00229     // as are ham and spam
00230     case KMMsgStatusSpam:
00231       mStatus &= ~KMMsgStatusHam;
00232       mStatus |= KMMsgStatusSpam;
00233       break;
00234     case KMMsgStatusHam:
00235       mStatus &= ~KMMsgStatusSpam;
00236       mStatus |= KMMsgStatusHam;
00237       break;
00238     case KMMsgStatusHasAttach:
00239       mStatus &= ~KMMsgStatusHasNoAttach;
00240       mStatus |= KMMsgStatusHasAttach;
00241       break;
00242     case KMMsgStatusHasNoAttach:
00243       mStatus &= ~KMMsgStatusHasAttach;
00244       mStatus |= KMMsgStatusHasNoAttach;
00245       break;
00246     case KMMsgStatusHasInvitation:
00247       mStatus &= ~KMMsgStatusHasNoInvitation;
00248       mStatus |= KMMsgStatusHasInvitation;
00249       break;
00250     case KMMsgStatusHasNoInvitation:
00251       mStatus &= ~KMMsgStatusHasInvitation;
00252       mStatus |= KMMsgStatusHasNoInvitation;
00253       break;
00254     default:
00255       mStatus = aStatus;
00256       break;
00257   }
00258 
00259   if ( oldStatus != mStatus && storage() ) {
00260     if (idx < 0)
00261       idx = storage()->find( this );
00262     storage()->msgStatusChanged( oldStatus, status(), idx );
00263     storage()->headerOfMsgChanged( this, idx );
00264   }
00265 }
00266 
00267 
00268 
00269 //-----------------------------------------------------------------------------
00270 void KMMsgBase::setStatus(const char* aStatusStr, const char* aXStatusStr)
00271 {
00272   // first try to find status from "X-Status" field if given
00273   if (aXStatusStr) {
00274     if (strchr(aXStatusStr, 'N')) setStatus(KMMsgStatusNew);
00275     if (strchr(aXStatusStr, 'U')) setStatus(KMMsgStatusUnread);
00276     if (strchr(aXStatusStr, 'O')) setStatus(KMMsgStatusOld);
00277     if (strchr(aXStatusStr, 'R')) setStatus(KMMsgStatusRead);
00278     if (strchr(aXStatusStr, 'D')) setStatus(KMMsgStatusDeleted);
00279     if (strchr(aXStatusStr, 'A')) setStatus(KMMsgStatusReplied);
00280     if (strchr(aXStatusStr, 'F')) setStatus(KMMsgStatusForwarded);
00281     if (strchr(aXStatusStr, 'Q')) setStatus(KMMsgStatusQueued);
00282     if (strchr(aXStatusStr, 'K')) setStatus(KMMsgStatusTodo);
00283     if (strchr(aXStatusStr, 'S')) setStatus(KMMsgStatusSent);
00284     if (strchr(aXStatusStr, 'G')) setStatus(KMMsgStatusFlag);
00285     if (strchr(aXStatusStr, 'P')) setStatus(KMMsgStatusSpam);
00286     if (strchr(aXStatusStr, 'H')) setStatus(KMMsgStatusHam);
00287     if (strchr(aXStatusStr, 'T')) setStatus(KMMsgStatusHasAttach);
00288     if (strchr(aXStatusStr, 'C')) setStatus(KMMsgStatusHasNoAttach);
00289   }
00290 
00291   // Merge the contents of the "Status" field
00292   if (aStatusStr) {
00293     if ((aStatusStr[0]== 'R' && aStatusStr[1]== 'O') ||
00294         (aStatusStr[0]== 'O' && aStatusStr[1]== 'R')) {
00295       setStatus( KMMsgStatusOld );
00296       setStatus( KMMsgStatusRead );
00297     }
00298     else if (aStatusStr[0] == 'R')
00299       setStatus(KMMsgStatusRead);
00300     else if (aStatusStr[0] == 'D')
00301       setStatus(KMMsgStatusDeleted);
00302     else
00303       setStatus(KMMsgStatusNew);
00304   }
00305 }
00306 
00307 
00308 void KMMsgBase::setEncryptionState( const KMMsgEncryptionState /*status*/, int idx )
00309 {
00310     //kdDebug(5006) << "***setEncryptionState1( " << status << " )" << endl;
00311     mDirty = true;
00312     if (storage())
00313         storage()->headerOfMsgChanged(this, idx);
00314 }
00315 
00316 void KMMsgBase::setEncryptionStateChar( QChar status, int idx )
00317 {
00318     //kdDebug(5006) << "***setEncryptionState2( " << (status.isNull() ? '?' : status.latin1()) << " )" << endl;
00319 
00320     if( status.latin1() == (char)KMMsgEncryptionStateUnknown )
00321         setEncryptionState( KMMsgEncryptionStateUnknown, idx );
00322     else if( status.latin1() == (char)KMMsgNotEncrypted )
00323         setEncryptionState( KMMsgNotEncrypted, idx );
00324     else if( status.latin1() == (char)KMMsgPartiallyEncrypted )
00325         setEncryptionState( KMMsgPartiallyEncrypted, idx );
00326     else if( status.latin1() == (char)KMMsgFullyEncrypted )
00327         setEncryptionState( KMMsgFullyEncrypted, idx );
00328     else
00329         setEncryptionState( KMMsgEncryptionStateUnknown, idx );
00330 }
00331 
00332 
00333 void KMMsgBase::setSignatureState( const KMMsgSignatureState /*status*/, int idx )
00334 {
00335     //kdDebug(5006) << "***setSignatureState1( " << status << " )" << endl;
00336     mDirty = true;
00337     if (storage())
00338          storage()->headerOfMsgChanged(this, idx);
00339 }
00340 
00341 void KMMsgBase::setMDNSentState( KMMsgMDNSentState, int idx ) {
00342   mDirty = true;
00343   if ( storage() )
00344     storage()->headerOfMsgChanged(this, idx);
00345 }
00346 
00347 void KMMsgBase::setSignatureStateChar( QChar status, int idx )
00348 {
00349     //kdDebug(5006) << "***setSignatureState2( " << (status.isNull() ? '?' : status.latin1()) << " )" << endl;
00350 
00351     if( status.latin1() == (char)KMMsgSignatureStateUnknown )
00352         setSignatureState( KMMsgSignatureStateUnknown, idx );
00353     else if( status.latin1() == (char)KMMsgNotSigned )
00354         setSignatureState( KMMsgNotSigned, idx );
00355     else if( status.latin1() == (char)KMMsgPartiallySigned )
00356         setSignatureState( KMMsgPartiallySigned,idx );
00357     else if( status.latin1() == (char)KMMsgFullySigned )
00358         setSignatureState( KMMsgFullySigned, idx );
00359     else
00360         setSignatureState( KMMsgSignatureStateUnknown, idx );
00361 }
00362 
00363 //-----------------------------------------------------------------------------
00364 bool KMMsgBase::isUnread(void) const
00365 {
00366   KMMsgStatus st = status();
00367   return (st & KMMsgStatusUnread && !(st & KMMsgStatusIgnored));
00368 }
00369 
00370 //-----------------------------------------------------------------------------
00371 bool KMMsgBase::isNew(void) const
00372 {
00373   KMMsgStatus st = status();
00374   return (st & KMMsgStatusNew && !(st & KMMsgStatusIgnored));
00375 }
00376 
00377 //-----------------------------------------------------------------------------
00378 bool KMMsgBase::isOfUnknownStatus(void) const
00379 {
00380   KMMsgStatus st = status();
00381   return (st == KMMsgStatusUnknown);
00382 }
00383 
00384 //-----------------------------------------------------------------------------
00385 bool KMMsgBase::isOld(void) const
00386 {
00387   KMMsgStatus st = status();
00388   return (st & KMMsgStatusOld);
00389 }
00390 
00391 //-----------------------------------------------------------------------------
00392 bool KMMsgBase::isRead(void) const
00393 {
00394   KMMsgStatus st = status();
00395   return (st & KMMsgStatusRead || st & KMMsgStatusIgnored);
00396 }
00397 
00398 //-----------------------------------------------------------------------------
00399 bool KMMsgBase::isDeleted(void) const
00400 {
00401   KMMsgStatus st = status();
00402   return (st & KMMsgStatusDeleted);
00403 }
00404 
00405 //-----------------------------------------------------------------------------
00406 bool KMMsgBase::isReplied(void) const
00407 {
00408   KMMsgStatus st = status();
00409   return (st & KMMsgStatusReplied);
00410 }
00411 
00412 //-----------------------------------------------------------------------------
00413 bool KMMsgBase::isForwarded(void) const
00414 {
00415   KMMsgStatus st = status();
00416   return (st & KMMsgStatusForwarded);
00417 }
00418 
00419 //-----------------------------------------------------------------------------
00420 bool KMMsgBase::isQueued(void) const
00421 {
00422   KMMsgStatus st = status();
00423   return (st & KMMsgStatusQueued);
00424 }
00425 
00426 //-----------------------------------------------------------------------------
00427 bool KMMsgBase::isTodo(void) const
00428 {
00429   KMMsgStatus st = status();
00430   return (st & KMMsgStatusTodo);
00431 }
00432 
00433 //-----------------------------------------------------------------------------
00434 bool KMMsgBase::isSent(void) const
00435 {
00436   KMMsgStatus st = status();
00437   return (st & KMMsgStatusSent);
00438 }
00439 
00440 //-----------------------------------------------------------------------------
00441 bool KMMsgBase::isImportant(void) const
00442 {
00443   KMMsgStatus st = status();
00444   return (st & KMMsgStatusFlag);
00445 }
00446 
00447 //-----------------------------------------------------------------------------
00448 bool KMMsgBase::isWatched(void) const
00449 {
00450   KMMsgStatus st = status();
00451   return (st & KMMsgStatusWatched);
00452 }
00453 
00454 //-----------------------------------------------------------------------------
00455 bool KMMsgBase::isIgnored(void) const
00456 {
00457   KMMsgStatus st = status();
00458   return (st & KMMsgStatusIgnored);
00459 }
00460 
00461 //-----------------------------------------------------------------------------
00462 bool KMMsgBase::isSpam(void) const
00463 {
00464   KMMsgStatus st = status();
00465   return (st & KMMsgStatusSpam);
00466 }
00467 
00468 //-----------------------------------------------------------------------------
00469 bool KMMsgBase::isHam(void) const
00470 {
00471   KMMsgStatus st = status();
00472   return (st & KMMsgStatusHam);
00473 }
00474 
00475 //-----------------------------------------------------------------------------
00476 QCString KMMsgBase::statusToStr(const KMMsgStatus status)
00477 {
00478   QCString sstr;
00479   if (status & KMMsgStatusNew) sstr += 'N';
00480   if (status & KMMsgStatusUnread) sstr += 'U';
00481   if (status & KMMsgStatusOld) sstr += 'O';
00482   if (status & KMMsgStatusRead) sstr += 'R';
00483   if (status & KMMsgStatusDeleted) sstr += 'D';
00484   if (status & KMMsgStatusReplied) sstr += 'A';
00485   if (status & KMMsgStatusForwarded) sstr += 'F';
00486   if (status & KMMsgStatusQueued) sstr += 'Q';
00487   if (status & KMMsgStatusTodo) sstr += 'K';
00488   if (status & KMMsgStatusSent) sstr += 'S';
00489   if (status & KMMsgStatusFlag) sstr += 'G';
00490   if (status & KMMsgStatusWatched) sstr += 'W';
00491   if (status & KMMsgStatusIgnored) sstr += 'I';
00492   if (status & KMMsgStatusSpam) sstr += 'P';
00493   if (status & KMMsgStatusHam) sstr += 'H';
00494   if (status & KMMsgStatusHasAttach) sstr += 'T';
00495   if (status & KMMsgStatusHasNoAttach) sstr += 'C';
00496 
00497   return sstr;
00498 }
00499 
00500 //-----------------------------------------------------------------------------
00501 QString KMMsgBase::statusToSortRank()
00502 {
00503   QString sstr = "bcbbbbbbbb";
00504 
00505   // put watched ones first, then normal ones, ignored ones last
00506   if (status() & KMMsgStatusWatched) sstr[0] = 'a';
00507   if (status() & KMMsgStatusIgnored) sstr[0] = 'c';
00508 
00509   // Second level. One of new, old, read, unread
00510   if (status() & KMMsgStatusNew) sstr[1] = 'a';
00511   if (status() & KMMsgStatusUnread) sstr[1] = 'b';
00512   //if (status() & KMMsgStatusOld) sstr[1] = 'c';
00513   //if (status() & KMMsgStatusRead) sstr[1] = 'c';
00514 
00515   // Third level. In somewhat arbitrary order.
00516   if (status() & KMMsgStatusDeleted) sstr[2] = 'a';
00517   if (status() & KMMsgStatusFlag) sstr[3] = 'a';
00518   if (status() & KMMsgStatusReplied) sstr[4] = 'a';
00519   if (status() & KMMsgStatusForwarded) sstr[5] = 'a';
00520   if (status() & KMMsgStatusQueued) sstr[6] = 'a';
00521   if (status() & KMMsgStatusSent) sstr[7] = 'a';
00522   if (status() & KMMsgStatusHam) sstr[8] = 'a';
00523   if (status() & KMMsgStatusSpam) sstr[8] = 'c';
00524   if (status() & KMMsgStatusTodo) sstr[9] = 'a';
00525 
00526   return sstr;
00527 }
00528 
00529 
00530 //-----------------------------------------------------------------------------
00531 void KMMsgBase::setDate(const QCString& aDateStr)
00532 {
00533   setDate( KRFCDate::parseDate( aDateStr ) );
00534 }
00535 
00536 
00537 //-----------------------------------------------------------------------------
00538 QString KMMsgBase::dateStr(void) const
00539 {
00540   time_t d = date();
00541   return KMime::DateFormatter::formatDate(KMime::DateFormatter::Fancy, d);
00542 }
00543 
00544 
00545 //-----------------------------------------------------------------------------
00546 QString KMMsgBase::skipKeyword(const QString& aStr, QChar sepChar,
00547                    bool* hasKeyword)
00548 {
00549   unsigned int i = 0, maxChars = 3;
00550   QString str = aStr;
00551 
00552   while (str[0] == ' ') str.remove(0,1);
00553   if (hasKeyword) *hasKeyword=false;
00554 
00555   unsigned int strLength(str.length());
00556   for (i=0; i < strLength && i < maxChars; i++)
00557   {
00558     if (str[i] < 'A' || str[i] == sepChar) break;
00559   }
00560 
00561   if (str[i] == sepChar) // skip following spaces too
00562   {
00563     do {
00564       i++;
00565     } while (str[i] == ' ');
00566     if (hasKeyword) *hasKeyword=true;
00567     return str.mid(i);
00568   }
00569   return str;
00570 }
00571 
00572 
00573 //-----------------------------------------------------------------------------
00574 const QTextCodec* KMMsgBase::codecForName(const QCString& _str)
00575 {
00576   if (_str.isEmpty()) return 0;
00577   QCString codec = _str;
00578   KPIM::kAsciiToLower(codec.data());
00579   return KGlobal::charsets()->codecForName(codec);
00580 }
00581 
00582 
00583 //-----------------------------------------------------------------------------
00584 QCString KMMsgBase::toUsAscii(const QString& _str, bool *ok)
00585 {
00586   bool all_ok =true;
00587   QString result = _str;
00588   int len = result.length();
00589   for (int i = 0; i < len; i++)
00590     if (result.at(i).unicode() >= 128) {
00591       result.at(i) = '?';
00592       all_ok = false;
00593     }
00594   if (ok)
00595     *ok = all_ok;
00596   return result.latin1();
00597 }
00598 
00599 
00600 //-----------------------------------------------------------------------------
00601 QStringList KMMsgBase::supportedEncodings(bool usAscii)
00602 {
00603   QStringList encodingNames = KGlobal::charsets()->availableEncodingNames();
00604   QStringList encodings;
00605   QMap<QString,bool> mimeNames;
00606   for (QStringList::Iterator it = encodingNames.begin();
00607     it != encodingNames.end(); it++)
00608   {
00609     QTextCodec *codec = KGlobal::charsets()->codecForName(*it);
00610     QString mimeName = (codec) ? QString(codec->mimeName()).lower() : (*it);
00611     if (mimeNames.find(mimeName) == mimeNames.end())
00612     {
00613       encodings.append(KGlobal::charsets()->languageForEncoding(*it)
00614         + " ( " + mimeName + " )");
00615       mimeNames.insert(mimeName, true);
00616     }
00617   }
00618   encodings.sort();
00619   if (usAscii) encodings.prepend(KGlobal::charsets()
00620     ->languageForEncoding("us-ascii") + " ( us-ascii )");
00621   return encodings;
00622 }
00623 
00624 namespace {
00625   // don't rely on isblank(), which is a GNU extension in
00626   // <cctype>. But if someone wants to write a configure test for
00627   // isblank(), we can then rename this function to isblank and #ifdef
00628   // it's definition...
00629   inline bool isBlank( char ch ) { return ch == ' ' || ch == '\t' ; }
00630 
00631   QCString unfold( const QCString & header ) {
00632     if ( header.isEmpty() )
00633       return QCString();
00634 
00635     QCString result( header.size() ); // size() >= length()+1 and size() is O(1)
00636     char * d = result.data();
00637 
00638     for ( const char * s = header.data() ; *s ; )
00639       if ( *s == '\r' ) { // ignore
00640     ++s;
00641     continue;
00642       } else if ( *s == '\n' ) { // unfold
00643     while ( isBlank( *++s ) )
00644           ;
00645     *d++ = ' ';
00646       } else
00647     *d++ = *s++;
00648 
00649     *d++ = '\0';
00650 
00651     result.truncate( d - result.data() );
00652     return result;
00653   }
00654 }
00655 
00656 
00657 //-----------------------------------------------------------------------------
00658 QString KMMsgBase::decodeRFC2047String(const QCString& aStr, QCString prefCharset)
00659 {
00660   if ( aStr.isEmpty() )
00661     return QString::null;
00662 
00663   const QCString str = unfold( aStr );
00664 
00665   if ( str.isEmpty() )
00666     return QString::null;
00667 
00668   if ( str.find( "=?" ) < 0 ) {
00669     if ( !prefCharset.isEmpty() ) {
00670       if ( prefCharset == "us-ascii" ) {
00671         // isn`t this foolproof?
00672         return KMMsgBase::codecForName( "utf-8" )->toUnicode( str );
00673       } else {
00674         return KMMsgBase::codecForName( prefCharset )->toUnicode( str );
00675       }
00676     } else {
00677       return KMMsgBase::codecForName( GlobalSettings::self()->
00678                                       fallbackCharacterEncoding().latin1() )->toUnicode( str );
00679     }
00680   }
00681 
00682   QString result;
00683   QCString LWSP_buffer;
00684   bool lastWasEncodedWord = false;
00685 
00686   for ( const char * pos = str.data() ; *pos ; ++pos ) {
00687     // collect LWSP after encoded-words,
00688     // because we might need to throw it out
00689     // (when the next word is an encoded-word)
00690     if ( lastWasEncodedWord && isBlank( pos[0] ) ) {
00691       LWSP_buffer += pos[0];
00692       continue;
00693     }
00694     // verbatimly copy normal text
00695     if (pos[0]!='=' || pos[1]!='?') {
00696       result += LWSP_buffer + pos[0];
00697       LWSP_buffer = 0;
00698       lastWasEncodedWord = false;
00699       continue;
00700     }
00701     // found possible encoded-word
00702     const char * const beg = pos;
00703     {
00704       // parse charset name
00705       QCString charset;
00706       int i = 2;
00707       pos += 2;
00708       for ( ; *pos != '?' && ( *pos==' ' || ispunct(*pos) || isalnum(*pos) );
00709             ++i, ++pos ) {
00710     charset += *pos;
00711       }
00712       if ( *pos!='?' || i<4 )
00713     goto invalid_encoded_word;
00714 
00715       // get encoding and check delimiting question marks
00716       const char encoding[2] = { pos[1], '\0' };
00717       if (pos[2]!='?' || (encoding[0]!='Q' && encoding[0]!='q' &&
00718               encoding[0]!='B' && encoding[0]!='b'))
00719     goto invalid_encoded_word;
00720       pos+=3; i+=3; // skip ?x?
00721       const char * enc_start = pos;
00722       // search for end of encoded part
00723       while ( *pos && !(*pos=='?' && *(pos+1)=='=') ) {
00724     i++;
00725     pos++;
00726       }
00727       if ( !*pos )
00728     goto invalid_encoded_word;
00729 
00730       // valid encoding: decode and throw away separating LWSP
00731       const KMime::Codec * c = KMime::Codec::codecForName( encoding );
00732       kdFatal( !c, 5006 ) << "No \"" << encoding << "\" codec!?" << endl;
00733 
00734       QByteArray in; in.setRawData( enc_start, pos - enc_start );
00735       const QByteArray enc = c->decode( in );
00736       in.resetRawData( enc_start, pos - enc_start );
00737 
00738       const QTextCodec * codec = codecForName(charset);
00739       if (!codec) codec = kmkernel->networkCodec();
00740       result += codec->toUnicode(enc);
00741       lastWasEncodedWord = true;
00742 
00743       ++pos; // eat '?' (for loop eats '=')
00744       LWSP_buffer = 0;
00745     }
00746     continue;
00747   invalid_encoded_word:
00748     // invalid encoding, keep separating LWSP.
00749     pos = beg;
00750     if ( !LWSP_buffer.isNull() )
00751     result += LWSP_buffer;
00752     result += "=?";
00753     lastWasEncodedWord = false;
00754     ++pos; // eat '?' (for loop eats '=')
00755     LWSP_buffer = 0;
00756   }
00757   return result;
00758 }
00759 
00760 
00761 //-----------------------------------------------------------------------------
00762 static const QCString especials = "()<>@,;:\"/[]?.= \033";
00763 
00764 QCString KMMsgBase::encodeRFC2047Quoted( const QCString & s, bool base64 ) {
00765   const char * codecName = base64 ? "b" : "q" ;
00766   const KMime::Codec * codec = KMime::Codec::codecForName( codecName );
00767   kdFatal( !codec, 5006 ) << "No \"" << codecName << "\" found!?" << endl;
00768   QByteArray in; in.setRawData( s.data(), s.length() );
00769   const QByteArray result = codec->encode( in );
00770   in.resetRawData( s.data(), s.length() );
00771   return QCString( result.data(), result.size() + 1 );
00772 }
00773 
00774 QCString KMMsgBase::encodeRFC2047String(const QString& _str,
00775   const QCString& charset)
00776 {
00777   static const QString dontQuote = "\"()<>,@";
00778 
00779   if (_str.isEmpty()) return QCString();
00780   if (charset == "us-ascii") return toUsAscii(_str);
00781 
00782   QCString cset;
00783   if (charset.isEmpty())
00784   {
00785     cset = kmkernel->networkCodec()->mimeName();
00786     KPIM::kAsciiToLower(cset.data());
00787   }
00788   else cset = charset;
00789 
00790   const QTextCodec *codec = codecForName(cset);
00791   if (!codec) codec = kmkernel->networkCodec();
00792 
00793   unsigned int nonAscii = 0;
00794   unsigned int strLength(_str.length());
00795   for (unsigned int i = 0; i < strLength; i++)
00796     if (_str.at(i).unicode() >= 128) nonAscii++;
00797   bool useBase64 = (nonAscii * 6 > strLength);
00798 
00799   unsigned int start, stop, p, pos = 0, encLength;
00800   QCString result;
00801   bool breakLine = false;
00802   const unsigned int maxLen = 75 - 7 - cset.length();
00803 
00804   while (pos < strLength)
00805   {
00806     start = pos; p = pos;
00807     while (p < strLength)
00808     {
00809       if (!breakLine && (_str.at(p) == ' ' || dontQuote.find(_str.at(p)) != -1))
00810         start = p + 1;
00811       if (_str.at(p).unicode() >= 128 || _str.at(p).unicode() < 32)
00812         break;
00813       p++;
00814     }
00815     if (breakLine || p < strLength)
00816     {
00817       while (dontQuote.find(_str.at(start)) != -1) start++;
00818       stop = start;
00819       while (stop < strLength && dontQuote.find(_str.at(stop)) == -1)
00820         stop++;
00821       result += _str.mid(pos, start - pos).latin1();
00822       encLength = encodeRFC2047Quoted(codec->fromUnicode(_str.
00823         mid(start, stop - start)), useBase64).length();
00824       breakLine = (encLength > maxLen);
00825       if (breakLine)
00826       {
00827         int dif = (stop - start) / 2;
00828         int step = dif;
00829         while (abs(step) > 1)
00830         {
00831           encLength = encodeRFC2047Quoted(codec->fromUnicode(_str.
00832             mid(start, dif)), useBase64).length();
00833           step = (encLength > maxLen) ? (-abs(step) / 2) : (abs(step) / 2);
00834           dif += step;
00835         }
00836         stop = start + dif;
00837       }
00838       p = stop;
00839       while (p > start && _str.at(p) != ' ') p--;
00840       if (p > start) stop = p;
00841       if (result.right(3) == "?= ") start--;
00842       if (result.right(5) == "?=\n  ") {
00843         start--; result.truncate(result.length() - 1);
00844       }
00845       int lastNewLine = result.findRev("\n ");
00846       if (!result.mid(lastNewLine).stripWhiteSpace().isEmpty()
00847         && result.length() - lastNewLine + encLength + 2 > maxLen)
00848           result += "\n ";
00849       result += "=?";
00850       result += cset;
00851       result += (useBase64) ? "?b?" : "?q?";
00852       result += encodeRFC2047Quoted(codec->fromUnicode(_str.mid(start,
00853         stop - start)), useBase64);
00854       result += "?=";
00855       if (breakLine) result += "\n ";
00856       pos = stop;
00857     } else {
00858       result += _str.mid(pos).latin1();
00859       break;
00860     }
00861   }
00862   return result;
00863 }
00864 
00865 
00866 //-----------------------------------------------------------------------------
00867 QCString KMMsgBase::encodeRFC2231String( const QString& _str,
00868                                          const QCString& charset )
00869 {
00870   if ( _str.isEmpty() )
00871     return QCString();
00872 
00873   QCString cset;
00874   if ( charset.isEmpty() )
00875   {
00876     cset = kmkernel->networkCodec()->mimeName();
00877     KPIM::kAsciiToLower( cset.data() );
00878   }
00879   else
00880     cset = charset;
00881   const QTextCodec *codec = codecForName( cset );
00882   QCString latin;
00883   if ( charset == "us-ascii" )
00884     latin = toUsAscii( _str );
00885   else if ( codec )
00886     latin = codec->fromUnicode( _str );
00887   else
00888     latin = _str.local8Bit();
00889 
00890   char *l;
00891   for ( l = latin.data(); *l; ++l ) {
00892     if ( ( ( *l & 0xE0 ) == 0 ) || ( *l & 0x80 ) )
00893       // *l is control character or 8-bit char
00894       break;
00895   }
00896   if ( !*l )
00897     return latin;
00898 
00899   QCString result = cset + "''";
00900   for ( l = latin.data(); *l; ++l ) {
00901     bool needsQuoting = ( *l & 0x80 );
00902     if( !needsQuoting ) {
00903       int len = especials.length();
00904       for ( int i = 0; i < len; i++ )
00905         if ( *l == especials[i] ) {
00906           needsQuoting = true;
00907           break;
00908         }
00909     }
00910     if ( needsQuoting ) {
00911       result += '%';
00912       unsigned char hexcode;
00913       hexcode = ( ( *l & 0xF0 ) >> 4 ) + 48;
00914       if ( hexcode >= 58 )
00915         hexcode += 7;
00916       result += hexcode;
00917       hexcode = ( *l & 0x0F ) + 48;
00918       if ( hexcode >= 58 )
00919         hexcode += 7;
00920       result += hexcode;
00921     } else {
00922       result += *l;
00923     }
00924   }
00925   return result;
00926 }
00927 
00928 //-----------------------------------------------------------------------------
00929 QCString KMMsgBase::encodeRFC2231StringAutoDetectCharset( const QString &str,
00930                                                           const QCString &defaultCharset )
00931 {
00932   QCString encoding = KMMsgBase::autoDetectCharset( defaultCharset,
00933                                                     KMMessage::preferredCharsets(), str );
00934   if ( encoding.isEmpty() )
00935     encoding = "utf-8";
00936   return KMMsgBase::encodeRFC2231String( str, encoding );
00937 }
00938 
00939 //-----------------------------------------------------------------------------
00940 QString KMMsgBase::decodeRFC2231String(const QCString& _str)
00941 {
00942   int p = _str.find('\'');
00943   if (p < 0) return kmkernel->networkCodec()->toUnicode(_str);
00944 
00945   QCString charset = _str.left(p);
00946 
00947   QCString st = _str.mid(_str.findRev('\'') + 1);
00948   char ch, ch2;
00949   p = 0;
00950   while (p < (int)st.length())
00951   {
00952     if (st.at(p) == 37)
00953     {
00954       ch = st.at(p+1) - 48;
00955       if (ch > 16) ch -= 7;
00956       ch2 = st.at(p+2) - 48;
00957       if (ch2 > 16) ch2 -= 7;
00958       st.at(p) = ch * 16 + ch2;
00959       st.remove( p+1, 2 );
00960     }
00961     p++;
00962   }
00963   QString result;
00964   const QTextCodec * codec = codecForName( charset );
00965   if ( !codec )
00966     codec = kmkernel->networkCodec();
00967   return codec->toUnicode( st );
00968 }
00969 
00970 QCString KMMsgBase::extractRFC2231HeaderField( const QCString &aStr, const QCString &field )
00971 {
00972   int n=-1;
00973   QCString str;
00974   bool found = false;
00975   while ( n<=0 || found ) {
00976     QString pattern( field );
00977     pattern += "[*]"; // match a literal * after the fieldname, as defined by RFC 2231
00978     if ( n>=0 ) { // If n<0, check for fieldname*=..., otherwise for fieldname*n=
00979       pattern += QString::number(n) + "[*]?";
00980     }
00981     pattern += "=";
00982 
00983     QRegExp fnamePart( pattern, false );
00984     int startPart = fnamePart.search( aStr );
00985     int endPart;
00986     found = ( startPart >= 0 );
00987     if ( found ) {
00988       startPart += fnamePart.matchedLength();
00989       // Quoted values end at the ending quote
00990       if ( aStr[startPart] == '"' ) {
00991         startPart++; // the double quote isn't part of the filename
00992         endPart = aStr.find('"', startPart) - 1;
00993       }
00994       else {
00995         endPart = aStr.find(';', startPart) - 1;
00996       }
00997       if (endPart < 0)
00998         endPart = 32767;
00999       str += aStr.mid( startPart, endPart-startPart+1).stripWhiteSpace();
01000     }
01001     n++;
01002   }
01003   return str;
01004 }
01005 
01006 QString KMMsgBase::base64EncodedMD5( const QString & s, bool utf8 ) {
01007   if (s.stripWhiteSpace().isEmpty()) return "";
01008   if ( utf8 )
01009     return base64EncodedMD5( s.stripWhiteSpace().utf8() ); // QCString overload
01010   else
01011     return base64EncodedMD5( s.stripWhiteSpace().latin1() ); // const char * overload
01012 }
01013 
01014 QString KMMsgBase::base64EncodedMD5( const QCString & s ) {
01015   if (s.stripWhiteSpace().isEmpty()) return "";
01016   return base64EncodedMD5( s.stripWhiteSpace().data() );
01017 }
01018 
01019 QString KMMsgBase::base64EncodedMD5( const char * s, int len ) {
01020   if (!s || !len) return "";
01021   static const int Base64EncodedMD5Len = 22;
01022   KMD5 md5( s, len );
01023   return md5.base64Digest().left( Base64EncodedMD5Len );
01024 }
01025 
01026 
01027 //-----------------------------------------------------------------------------
01028 QCString KMMsgBase::autoDetectCharset(const QCString &_encoding, const QStringList &encodingList, const QString &text)
01029 {
01030     QStringList charsets = encodingList;
01031     if (!_encoding.isEmpty())
01032     {
01033        QString currentCharset = QString::fromLatin1(_encoding);
01034        charsets.remove(currentCharset);
01035        charsets.prepend(currentCharset);
01036     }
01037 
01038     QStringList::ConstIterator it = charsets.begin();
01039     for (; it != charsets.end(); ++it)
01040     {
01041        QCString encoding = (*it).latin1();
01042        if (encoding == "locale")
01043        {
01044          encoding = kmkernel->networkCodec()->mimeName();
01045          KPIM::kAsciiToLower(encoding.data());
01046        }
01047        if (text.isEmpty())
01048          return encoding;
01049        if (encoding == "us-ascii") {
01050          bool ok;
01051          (void) KMMsgBase::toUsAscii(text, &ok);
01052          if (ok)
01053             return encoding;
01054        }
01055        else
01056        {
01057          const QTextCodec *codec = KMMsgBase::codecForName(encoding);
01058          if (!codec) {
01059            kdDebug(5006) << "Auto-Charset: Something is wrong and I can not get a codec. [" << encoding << "]" << endl;
01060          } else {
01061            if (codec->canEncode(text))
01062               return encoding;
01063          }
01064        }
01065     }
01066     return 0;
01067 }
01068 
01069 
01070 //-----------------------------------------------------------------------------
01071 unsigned long KMMsgBase::getMsgSerNum() const
01072 {
01073   unsigned long msn = MessageProperty::serialCache( this );
01074   if (msn)
01075     return msn;
01076   if (mParent) {
01077     int index = mParent->find((KMMsgBase*)this);
01078     msn = KMMsgDict::instance()->getMsgSerNum(mParent, index);
01079     if (msn)
01080       MessageProperty::setSerialCache( this, msn );
01081   }
01082   return msn;
01083 }
01084 
01085 
01086 //-----------------------------------------------------------------------------
01087 KMMsgAttachmentState KMMsgBase::attachmentState() const
01088 {
01089   KMMsgStatus st = status();
01090   if (st & KMMsgStatusHasAttach)
01091     return KMMsgHasAttachment;
01092   else if (st & KMMsgStatusHasNoAttach)
01093     return KMMsgHasNoAttachment;
01094   else
01095     return KMMsgAttachmentUnknown;
01096 }
01097 
01098 
01099 KMMsgInvitationState KMMsgBase::invitationState() const
01100 {
01101   KMMsgStatus st = status();
01102   if (st & KMMsgStatusHasInvitation)
01103     return KMMsgHasInvitation;
01104   else if (st & KMMsgStatusHasNoInvitation)
01105     return KMMsgHasNoInvitation;
01106   else
01107     return KMMsgInvitationUnknown;
01108 }
01109 
01110 //-----------------------------------------------------------------------------
01111 static void swapEndian(QString &str)
01112 {
01113   uint len = str.length();
01114   str = QDeepCopy<QString>(str);
01115   QChar *unicode = const_cast<QChar*>( str.unicode() );
01116   for (uint i = 0; i < len; i++)
01117     unicode[i] = kmail_swap_16(unicode[i].unicode());
01118 }
01119 
01120 //-----------------------------------------------------------------------------
01121 static int g_chunk_length = 0, g_chunk_offset=0;
01122 static uchar *g_chunk = 0;
01123 
01124 namespace {
01125   template < typename T > void copy_from_stream( T & x ) {
01126     if( g_chunk_offset + int(sizeof(T)) > g_chunk_length ) {
01127       g_chunk_offset = g_chunk_length;
01128       kdDebug( 5006 ) << "This should never happen.. "
01129               << __FILE__ << ":" << __LINE__ << endl;
01130       x = 0;
01131     } else {
01132       // the memcpy is optimized out by the compiler for the values
01133       // of sizeof(T) that is called with
01134       memcpy( &x, g_chunk + g_chunk_offset, sizeof(T) );
01135       g_chunk_offset += sizeof(T);
01136     }
01137   }
01138 }
01139 
01140 //-----------------------------------------------------------------------------
01141 QString KMMsgBase::getStringPart(MsgPartType t) const
01142 {
01143 retry:
01144   QString ret;
01145 
01146   g_chunk_offset = 0;
01147   bool using_mmap = false;
01148   bool swapByteOrder = storage()->indexSwapByteOrder();
01149   if (storage()->indexStreamBasePtr()) {
01150     if (g_chunk)
01151       free(g_chunk);
01152     using_mmap = true;
01153     g_chunk = storage()->indexStreamBasePtr() + mIndexOffset;
01154     g_chunk_length = mIndexLength;
01155   } else {
01156     if(!storage()->mIndexStream)
01157       return ret;
01158     if (g_chunk_length < mIndexLength)
01159       g_chunk = (uchar *)realloc(g_chunk, g_chunk_length = mIndexLength);
01160     off_t first_off=ftell(storage()->mIndexStream);
01161     fseek(storage()->mIndexStream, mIndexOffset, SEEK_SET);
01162     fread( g_chunk, mIndexLength, 1, storage()->mIndexStream);
01163     fseek(storage()->mIndexStream, first_off, SEEK_SET);
01164   }
01165 
01166   MsgPartType type;
01167   Q_UINT16 l;
01168   while(g_chunk_offset < mIndexLength) {
01169     Q_UINT32 tmp;
01170     copy_from_stream(tmp);
01171     copy_from_stream(l);
01172     if (swapByteOrder)
01173     {
01174        tmp = kmail_swap_32(tmp);
01175        l = kmail_swap_16(l);
01176     }
01177     type = (MsgPartType) tmp;
01178     if(g_chunk_offset + l > mIndexLength) {
01179     kdDebug(5006) << "This should never happen.. " << __FILE__ << ":" << __LINE__ << endl;
01180         if(using_mmap) {
01181             g_chunk_length = 0;
01182             g_chunk = 0;
01183         }
01184         storage()->recreateIndex();
01185         goto retry;
01186     }
01187     if(type == t) {
01188         // This works because the QString constructor does a memcpy.
01189         // Otherwise we would need to be concerned about the alignment.
01190     if(l)
01191         ret = QString((QChar *)(g_chunk + g_chunk_offset), l/2);
01192     break;
01193     }
01194     g_chunk_offset += l;
01195   }
01196   if(using_mmap) {
01197       g_chunk_length = 0;
01198       g_chunk = 0;
01199   }
01200   // Normally we need to swap the byte order because the QStrings are written
01201   // in the style of Qt2 (MSB -> network ordered).
01202   // QStrings in Qt3 expect host ordering.
01203   // On e.g. Intel host ordering is LSB, on e.g. Sparc it is MSB.
01204 
01205 #ifndef WORDS_BIGENDIAN
01206   // #warning Byte order is little endian (swap is true)
01207   swapEndian(ret);
01208 #else
01209   // #warning Byte order is big endian (swap is false)
01210 #endif
01211 
01212   return ret;
01213 }
01214 
01215 //-----------------------------------------------------------------------------
01216 off_t KMMsgBase::getLongPart(MsgPartType t) const
01217 {
01218 retry:
01219   off_t ret = 0;
01220 
01221   g_chunk_offset = 0;
01222   bool using_mmap = false;
01223   int sizeOfLong = storage()->indexSizeOfLong();
01224   bool swapByteOrder = storage()->indexSwapByteOrder();
01225   if (storage()->indexStreamBasePtr()) {
01226     if (g_chunk)
01227       free(g_chunk);
01228     using_mmap = true;
01229     g_chunk = storage()->indexStreamBasePtr() + mIndexOffset;
01230     g_chunk_length = mIndexLength;
01231   } else {
01232     if (!storage()->mIndexStream)
01233       return ret;
01234     assert(mIndexLength >= 0);
01235     if (g_chunk_length < mIndexLength)
01236       g_chunk = (uchar *)realloc(g_chunk, g_chunk_length = mIndexLength);
01237     off_t first_off=ftell(storage()->mIndexStream);
01238     fseek(storage()->mIndexStream, mIndexOffset, SEEK_SET);
01239     fread( g_chunk, mIndexLength, 1, storage()->mIndexStream);
01240     fseek(storage()->mIndexStream, first_off, SEEK_SET);
01241   }
01242 
01243   MsgPartType type;
01244   Q_UINT16 l;
01245   while (g_chunk_offset < mIndexLength) {
01246     Q_UINT32 tmp;
01247     copy_from_stream(tmp);
01248     copy_from_stream(l);
01249     if (swapByteOrder)
01250     {
01251        tmp = kmail_swap_32(tmp);
01252        l = kmail_swap_16(l);
01253     }
01254     type = (MsgPartType) tmp;
01255 
01256     if (g_chunk_offset + l > mIndexLength) {
01257       kdDebug(5006) << "This should never happen.. " << __FILE__ << ":" << __LINE__ << endl;
01258       if(using_mmap) {
01259         g_chunk_length = 0;
01260         g_chunk = 0;
01261       }
01262       storage()->recreateIndex();
01263       goto retry;
01264     }
01265     if(type == t) {
01266       assert(sizeOfLong == l);
01267       if (sizeOfLong == sizeof(ret))
01268       {
01269      copy_from_stream(ret);
01270          if (swapByteOrder)
01271          {
01272             if (sizeof(ret) == 4)
01273                ret = kmail_swap_32(ret);
01274             else
01275                ret = kmail_swap_64(ret);
01276          }
01277       }
01278       else if (sizeOfLong == 4)
01279       {
01280          // Long is stored as 4 bytes in index file, sizeof(long) = 8
01281          Q_UINT32 ret_32;
01282          copy_from_stream(ret_32);
01283          if (swapByteOrder)
01284             ret_32 = kmail_swap_32(ret_32);
01285          ret = ret_32;
01286       }
01287       else if (sizeOfLong == 8)
01288       {
01289          // Long is stored as 8 bytes in index file, sizeof(long) = 4
01290          Q_UINT32 ret_1;
01291          Q_UINT32 ret_2;
01292          copy_from_stream(ret_1);
01293          copy_from_stream(ret_2);
01294          if (!swapByteOrder)
01295          {
01296             // Index file order is the same as the order of this CPU.
01297 #ifndef WORDS_BIGENDIAN
01298             // Index file order is little endian
01299             ret = ret_1; // We drop the 4 most significant bytes
01300 #else
01301             // Index file order is big endian
01302             ret = ret_2; // We drop the 4 most significant bytes
01303 #endif
01304          }
01305          else
01306          {
01307             // Index file order is different from this CPU.
01308 #ifndef WORDS_BIGENDIAN
01309             // Index file order is big endian
01310             ret = ret_2; // We drop the 4 most significant bytes
01311 #else
01312             // Index file order is little endian
01313             ret = ret_1; // We drop the 4 most significant bytes
01314 #endif
01315             // We swap the result to host order.
01316             ret = kmail_swap_32(ret);
01317          }
01318 
01319       }
01320       break;
01321     }
01322     g_chunk_offset += l;
01323   }
01324   if(using_mmap) {
01325     g_chunk_length = 0;
01326     g_chunk = 0;
01327   }
01328   return ret;
01329 }
01330 
01331 #ifndef WORDS_BIGENDIAN
01332 // We need to use swab to swap bytes to network byte order
01333 #define memcpy_networkorder(to, from, len)  swab((char *)(from), (char *)(to), len)
01334 #else
01335 // We're already in network byte order
01336 #define memcpy_networkorder(to, from, len)  memcpy(to, from, len)
01337 #endif
01338 
01339 #define STORE_DATA_LEN(type, x, len, network_order) do { \
01340     int len2 = (len > 256) ? 256 : len; \
01341     if(csize < (length + (len2 + sizeof(short) + sizeof(MsgPartType)))) \
01342            ret = (uchar *)realloc(ret, csize += len2+sizeof(short)+sizeof(MsgPartType)); \
01343         Q_UINT32 t = (Q_UINT32) type; memcpy(ret+length, &t, sizeof(t)); \
01344         Q_UINT16 l = len2; memcpy(ret+length+sizeof(t), &l, sizeof(l)); \
01345         if (network_order) \
01346            memcpy_networkorder(ret+length+sizeof(t)+sizeof(l), x, len2); \
01347         else \
01348            memcpy(ret+length+sizeof(t)+sizeof(l), x, len2); \
01349         length += len2+sizeof(t)+sizeof(l); \
01350     } while(0)
01351 #define STORE_DATA(type, x) STORE_DATA_LEN(type, &x, sizeof(x), false)
01352 
01353 //-----------------------------------------------------------------------------
01354 const uchar *KMMsgBase::asIndexString(int &length) const
01355 {
01356   unsigned int csize = 256;
01357   static uchar *ret = 0; //different static buffer here for we may use the other buffer in the functions below
01358   if(!ret)
01359     ret = (uchar *)malloc(csize);
01360   length = 0;
01361 
01362   unsigned long tmp;
01363   QString tmp_str;
01364 
01365   //these is at the beginning because it is queried quite often
01366   tmp_str = msgIdMD5().stripWhiteSpace();
01367   STORE_DATA_LEN(MsgIdMD5Part, tmp_str.unicode(), tmp_str.length() * 2, true);
01368   tmp = mLegacyStatus;
01369   STORE_DATA(MsgLegacyStatusPart, tmp);
01370 
01371   //these are completely arbitrary order
01372   tmp_str = fromStrip().stripWhiteSpace();
01373   STORE_DATA_LEN(MsgFromStripPart, tmp_str.unicode(), tmp_str.length() * 2, true);
01374   tmp_str = subject().stripWhiteSpace();
01375   STORE_DATA_LEN(MsgSubjectPart, tmp_str.unicode(), tmp_str.length() * 2, true);
01376   tmp_str = toStrip().stripWhiteSpace();
01377   STORE_DATA_LEN(MsgToStripPart, tmp_str.unicode(), tmp_str.length() * 2, true);
01378   tmp_str = replyToIdMD5().stripWhiteSpace();
01379   STORE_DATA_LEN(MsgReplyToIdMD5Part, tmp_str.unicode(), tmp_str.length() * 2, true);
01380   tmp_str = xmark().stripWhiteSpace();
01381   STORE_DATA_LEN(MsgXMarkPart, tmp_str.unicode(), tmp_str.length() * 2, true);
01382   tmp_str = fileName().stripWhiteSpace();
01383   STORE_DATA_LEN(MsgFilePart, tmp_str.unicode(), tmp_str.length() * 2, true);
01384   tmp = msgSize();
01385   STORE_DATA(MsgSizePart, tmp);
01386   tmp = folderOffset();
01387   STORE_DATA(MsgOffsetPart, tmp);
01388   tmp = date();
01389   STORE_DATA(MsgDatePart, tmp);
01390   tmp = (signatureState() << 16) | encryptionState();
01391   STORE_DATA(MsgCryptoStatePart, tmp);
01392   tmp = mdnSentState();
01393   STORE_DATA(MsgMDNSentPart, tmp);
01394 
01395   tmp_str = replyToAuxIdMD5().stripWhiteSpace();
01396   STORE_DATA_LEN(MsgReplyToAuxIdMD5Part, tmp_str.unicode(), tmp_str.length() * 2, true);
01397 
01398   tmp_str = strippedSubjectMD5().stripWhiteSpace();
01399   STORE_DATA_LEN(MsgStrippedSubjectMD5Part, tmp_str.unicode(), tmp_str.length() * 2, true);
01400 
01401   tmp = status();
01402   STORE_DATA(MsgStatusPart, tmp);
01403 
01404   tmp = msgSizeServer();
01405   STORE_DATA(MsgSizeServerPart, tmp);
01406   tmp = UID();
01407   STORE_DATA(MsgUIDPart, tmp);
01408 
01409   tmp_str = from();
01410   STORE_DATA_LEN( MsgFromPart, tmp_str.unicode(), tmp_str.length() * 2, true );
01411 
01412   tmp_str = to();
01413   STORE_DATA_LEN( MsgToPart, tmp_str.unicode(), tmp_str.length() * 2, true );
01414 
01415   return ret;
01416 }
01417 #undef STORE_DATA_LEN
01418 #undef STORE_DATA
01419 
01420 bool KMMsgBase::syncIndexString() const
01421 {
01422   if(!dirty())
01423     return true;
01424   int len;
01425   const uchar *buffer = asIndexString(len);
01426   if (len == mIndexLength) {
01427     Q_ASSERT(storage()->mIndexStream);
01428     fseek(storage()->mIndexStream, mIndexOffset, SEEK_SET);
01429     assert( mIndexOffset > 0 );
01430     fwrite( buffer, len, 1, storage()->mIndexStream);
01431     return true;
01432   }
01433   return false;
01434 }
01435 
01436 static QStringList sReplySubjPrefixes, sForwardSubjPrefixes;
01437 static bool sReplaceSubjPrefix, sReplaceForwSubjPrefix;
01438 
01439 //-----------------------------------------------------------------------------
01440 void KMMsgBase::readConfig()
01441 {
01442   KConfigGroup composerGroup( KMKernel::config(), "Composer" );
01443   sReplySubjPrefixes = composerGroup.readListEntry("reply-prefixes", ',');
01444   if (sReplySubjPrefixes.isEmpty())
01445     sReplySubjPrefixes << "Re\\s*:" << "Re\\[\\d+\\]:" << "Re\\d+:";
01446   sReplaceSubjPrefix = composerGroup.readBoolEntry("replace-reply-prefix", true);
01447   sForwardSubjPrefixes = composerGroup.readListEntry("forward-prefixes", ',');
01448   if (sForwardSubjPrefixes.isEmpty())
01449     sForwardSubjPrefixes << "Fwd:" << "FW:";
01450   sReplaceForwSubjPrefix = composerGroup.readBoolEntry("replace-forward-prefix", true);
01451 }
01452 
01453 //-----------------------------------------------------------------------------
01454 // static
01455 QString KMMsgBase::stripOffPrefixes( const QString& str )
01456 {
01457   return replacePrefixes( str, sReplySubjPrefixes + sForwardSubjPrefixes,
01458                           true, QString::null ).stripWhiteSpace();
01459 }
01460 
01461 //-----------------------------------------------------------------------------
01462 // static
01463 QString KMMsgBase::replacePrefixes( const QString& str,
01464                                     const QStringList& prefixRegExps,
01465                                     bool replace,
01466                                     const QString& newPrefix )
01467 {
01468   bool recognized = false;
01469   // construct a big regexp that
01470   // 1. is anchored to the beginning of str (sans whitespace)
01471   // 2. matches at least one of the part regexps in prefixRegExps
01472   QString bigRegExp = QString::fromLatin1("^(?:\\s+|(?:%1))+\\s*")
01473                       .arg( prefixRegExps.join(")|(?:") );
01474   QRegExp rx( bigRegExp, false /*case insens.*/ );
01475   if ( !rx.isValid() ) {
01476     kdWarning(5006) << "KMMessage::replacePrefixes(): bigRegExp = \""
01477                     << bigRegExp << "\"\n"
01478                     << "prefix regexp is invalid!" << endl;
01479     // try good ole Re/Fwd:
01480     recognized = str.startsWith( newPrefix );
01481   } else { // valid rx
01482     QString tmp = str;
01483     if ( rx.search( tmp ) == 0 ) {
01484       recognized = true;
01485       if ( replace )
01486     return tmp.replace( 0, rx.matchedLength(), newPrefix + ' ' );
01487     }
01488   }
01489   if ( !recognized )
01490     return newPrefix + ' ' + str;
01491   else
01492     return str;
01493 }
01494 
01495 //-----------------------------------------------------------------------------
01496 QString KMMsgBase::cleanSubject() const
01497 {
01498   return cleanSubject( sReplySubjPrefixes + sForwardSubjPrefixes,
01499                true, QString::null ).stripWhiteSpace();
01500 }
01501 
01502 //-----------------------------------------------------------------------------
01503 QString KMMsgBase::cleanSubject( const QStringList & prefixRegExps,
01504                                  bool replace,
01505                                  const QString & newPrefix ) const
01506 {
01507   return KMMsgBase::replacePrefixes( subject(), prefixRegExps, replace,
01508                                      newPrefix );
01509 }
01510 
01511 //-----------------------------------------------------------------------------
01512 QString KMMsgBase::forwardSubject() const {
01513   return cleanSubject( sForwardSubjPrefixes, sReplaceForwSubjPrefix, "Fwd:" );
01514 }
01515 
01516 //-----------------------------------------------------------------------------
01517 QString KMMsgBase::replySubject() const {
01518   return cleanSubject( sReplySubjPrefixes, sReplaceSubjPrefix, "Re:" );
01519 }
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