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kmail/kmmsgbase.cpp

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// kmmsgbase.cpp
#include "kmmsgbase.h"
#include <config-kmail.h>
#include "globalsettings.h"
#include "kmfolderindex.h"
#include "kmfolder.h"
#include "kmmsgdict.h"
#include "kmmessagetag.h"
#include "messageproperty.h"
#include <QByteArray>
using KMail::MessageProperty;
#include <kdebug.h>
#include <kde_file.h>
#include <kglobal.h>
#include <kcharsets.h>
#include <kascii.h>
#include <kcodecs.h>
#include <kdatetime.h>
#include <kconfiggroup.h>
#include <mimelib/mimepp.h>
#include <kmime/kmime_codecs.h>
#include <kmime/kmime_util.h>
#include <QTextCodec>
#include <QRegExp>
#include <ctype.h>
#include <stdlib.h>
#include <unistd.h>
#include <kmime/kmime_dateformatter.h> // kdepimlibs
#ifdef HAVE_BYTESWAP_H
#include <byteswap.h>
#endif
// We define functions as kmail_swap_NN so that we don't get compile errors
// on platforms where bswap_NN happens to be a function instead of a define.
/* Swap bytes in 16 bit value. */
#ifdef bswap_16
#define kmail_swap_16(x) bswap_16(x)
#else
#define kmail_swap_16(x) \
((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
#endif
/* Swap bytes in 32 bit value. */
#ifdef bswap_32
#define kmail_swap_32(x) bswap_32(x)
#else
#define kmail_swap_32(x) \
((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
(((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
#endif
/* Swap bytes in 64 bit value. */
#ifdef bswap_64
#define kmail_swap_64(x) bswap_64(x)
#else
#define kmail_swap_64(x) \
((((x) & 0xff00000000000000ull) >> 56) \
| (((x) & 0x00ff000000000000ull) >> 40) \
| (((x) & 0x0000ff0000000000ull) >> 24) \
| (((x) & 0x000000ff00000000ull) >> 8) \
| (((x) & 0x00000000ff000000ull) << 8) \
| (((x) & 0x0000000000ff0000ull) << 24) \
| (((x) & 0x000000000000ff00ull) << 40) \
| (((x) & 0x00000000000000ffull) << 56))
#endif
//-----------------------------------------------------------------------------
KMMsgBase::KMMsgBase(KMFolder* aParentFolder)
: mParent( aParentFolder ),
#ifdef KMAIL_SQLITE_INDEX
mData( 0 ),
mDbId( 0 ),
#else
mIndexOffset( 0 ),
#endif
mIndexLength( 0 ),
mDirty( false ),
mEnableUndo( false ),
mStatus(),
mTagList( 0 ),
mStringPartCacheBuilt( false )
{
}
#ifdef KMAIL_SQLITE_INDEX
KMMsgBase::KMMsgBase( KMFolder* aParentFolder, char* data, short len, sqlite_int64 dbId )
: mParent( aParentFolder ),
mData( data ),
mDbId( dbId ),
#else
KMMsgBase::KMMsgBase(KMFolder* aParentFolder, off_t off, short len)
: mParent( aParentFolder ),
mIndexOffset( off ),
#endif
mIndexLength( len ),
mDirty( false ),
mEnableUndo( false ),
mStatus(),
mTagList( 0 ),
mStringPartCacheBuilt( false )
{
}
//----------------------------------------------------------------------------
KMMsgBase::KMMsgBase( const KMMsgBase& other )
: mTagList( 0 )
#ifdef KMAIL_SQLITE_INDEX
, mData( 0 )
#endif
, mStringPartCacheBuilt( false )
{
assign( &other );
}
//-----------------------------------------------------------------------------
KMMsgBase::~KMMsgBase()
{
MessageProperty::forget( this );
delete mTagList;
#ifdef KMAIL_SQLITE_INDEX
free( mData );
#endif
}
KMFolderIndex* KMMsgBase::storage() const
{
// TODO: How did this ever work? What about KMFolderSearch that does
// not inherit KMFolderIndex?
if( mParent )
return static_cast<KMFolderIndex*>( mParent->storage() );
return 0;
}
//-----------------------------------------------------------------------------
void KMMsgBase::assign(const KMMsgBase* other)
{
mParent = other->mParent;
mDirty = other->mDirty;
#ifdef KMAIL_SQLITE_INDEX
free( mData );
mData = (char*)malloc( other->mIndexLength );
mDbId = other->mDbId;
memcpy( mData, other->mData, other->mIndexLength );
#else
mIndexOffset = other->mIndexOffset;
#endif
mIndexLength = other->mIndexLength;
//Not sure why these 4 are copied here, but mStatus is not. Nevertheless,
//it probably does no harm to copy the taglist here
if ( other->tagList() ) {
if ( !mTagList )
mTagList = new KMMessageTagList();
*mTagList = *other->tagList();
} else {
delete mTagList;
mTagList = 0;
}
}
//-----------------------------------------------------------------------------
KMMsgBase& KMMsgBase::operator=(const KMMsgBase& other)
{
assign(&other);
return *this;
}
//-----------------------------------------------------------------------------
bool KMMsgBase::isMessage(void) const
{
return false;
}
//-----------------------------------------------------------------------------
void KMMsgBase::toggleStatus(const MessageStatus& aStatus, int idx)
{
mDirty = true;
MessageStatus oldStatus = mStatus;
mStatus.toggle( aStatus );
if (storage()) {
if (idx < 0)
idx = storage()->find( this );
storage()->msgStatusChanged( oldStatus, mStatus, idx );
storage()->headerOfMsgChanged(this, idx);
}
}
//-----------------------------------------------------------------------------
void KMMsgBase::setStatus(const MessageStatus& aStatus, int idx)
{
MessageStatus oldStatus = mStatus;
mStatus.set( aStatus );
if ( oldStatus != mStatus ) {
mDirty = true;
if ( storage() ) {
if (idx < 0)
idx = storage()->find( this );
storage()->msgStatusChanged( oldStatus, mStatus, idx );
storage()->headerOfMsgChanged( this, idx );
}
}
}
//-----------------------------------------------------------------------------
void KMMsgBase::setStatus(const char* aStatusStr, const char* aXStatusStr)
{
// cumulate the changes in "status" to avoid multiple emits of
// msgStatusChanged(...) when calling setStatus() multiple times
MessageStatus status;
// first try to find status from "X-Status" field if given
if (aXStatusStr) {
status.setStatusFromStr( aXStatusStr );
}
// Merge the contents of the "Status" field
if (aStatusStr) {
if ((aStatusStr[0]== 'R' && aStatusStr[1]== 'O') ||
(aStatusStr[0]== 'O' && aStatusStr[1]== 'R')) {
status.setOld();
status.setRead();
}
else if (aStatusStr[0] == 'R')
status.setRead();
else if (aStatusStr[0] == 'D')
status.setDeleted();
else
status.setNew();
}
setStatus( status );
}
void KMMsgBase::setEncryptionState( const KMMsgEncryptionState /*status*/, int idx )
{
//kDebug() << "***setEncryptionState1(" << status << ")";
mDirty = true;
if (storage())
storage()->headerOfMsgChanged(this, idx);
}
void KMMsgBase::setEncryptionStateChar( QChar status, int idx )
{
//kDebug() << "***setEncryptionState2(" << (status.isNull() ? '?' : status.toLatin1()) << ")";
if( status.toLatin1() == (char)KMMsgEncryptionStateUnknown )
setEncryptionState( KMMsgEncryptionStateUnknown, idx );
else if( status.toLatin1() == (char)KMMsgNotEncrypted )
setEncryptionState( KMMsgNotEncrypted, idx );
else if( status.toLatin1() == (char)KMMsgPartiallyEncrypted )
setEncryptionState( KMMsgPartiallyEncrypted, idx );
else if( status.toLatin1() == (char)KMMsgFullyEncrypted )
setEncryptionState( KMMsgFullyEncrypted, idx );
else
setEncryptionState( KMMsgEncryptionStateUnknown, idx );
}
void KMMsgBase::setSignatureState( const KMMsgSignatureState /*status*/, int idx )
{
//kDebug() << "***setSignatureState1(" << status << ")";
mDirty = true;
if (storage())
storage()->headerOfMsgChanged(this, idx);
}
void KMMsgBase::setMDNSentState( KMMsgMDNSentState, int idx ) {
mDirty = true;
if ( storage() )
storage()->headerOfMsgChanged(this, idx);
}
void KMMsgBase::setSignatureStateChar( QChar status, int idx )
{
//kDebug() << "***setSignatureState2(" << (status.isNull() ? '?' : status.toLatin1()) << ")";
if( status.toLatin1() == (char)KMMsgSignatureStateUnknown )
setSignatureState( KMMsgSignatureStateUnknown, idx );
else if( status.toLatin1() == (char)KMMsgNotSigned )
setSignatureState( KMMsgNotSigned, idx );
else if( status.toLatin1() == (char)KMMsgPartiallySigned )
setSignatureState( KMMsgPartiallySigned,idx );
else if( status.toLatin1() == (char)KMMsgFullySigned )
setSignatureState( KMMsgFullySigned, idx );
else
setSignatureState( KMMsgSignatureStateUnknown, idx );
}
//-----------------------------------------------------------------------------
MessageStatus& KMMsgBase::status() const
{
return mStatus;
}
//-----------------------------------------------------------------------------
const MessageStatus& KMMsgBase::messageStatus() const
{
return mStatus;
}
//-----------------------------------------------------------------------------
void KMMsgBase::setDate(const QByteArray& aDateStr)
{
KDateTime extractedDate = KDateTime::fromString( aDateStr, KDateTime::RFCDate );
if ( extractedDate.isValid() || aDateStr.isEmpty() )
{
setDate( extractedDate.toTime_t() );
return;
}
// KDateTime doesn't handle slightly non-standard formats.
// Let's try to do better.
QString dateString = aDateStr.trimmed();
// Look for a very common non-standard RFC format
// Thu, 17 Jul 2008 14:03:39 +0200 (CEST)
// Wed, 9 Jul 2008 18:22:45 +0200 (MET DST)
// Thu, 17 Jul 2008 07:50:24 -0400 (EDT)
// Wed, 16 Jul 2008 16:04:37 -0700 (PDT)
// Thu, 17 Jul 2008 04:21:20 +0000 (UTC)
// Wed, 09 Jan 2008 18:50:36 +0900 (JST)
// Wed, 9 Jan 2008 03:17:37 +0000 (GMT)
// Mon, 23 Jun 2008 00:40:38 +0600 (YEKST)
if ( aDateStr[ aDateStr.length() - 1 ] == ')' )
{
// Might be RFC format followed by (TIMEZONE). Very common.
QRegExp regularExpression("^(.+)\\s+\\([A-Z]{3,5}(\\s[A-Z]{3})?\\)$");
if ( dateString.indexOf(regularExpression) == 0 )
{
QStringList parts = regularExpression.capturedTexts();
Q_ASSERT( parts.size() >= 2 ); // Must be at least 2 (as per Qt docs)
extractedDate = KDateTime::fromString( parts[1], KDateTime::RFCDate );
if ( extractedDate.isValid() )
{
setDate( extractedDate.toTime_t() );
return;
}
}
}
// Something that I've seen around and we don't handle yet is
// Sat, 21 Jun 2008 8:58:23 -0400
// which doesn't seem to have the leading 0 digit in front of the hour...
// Until now I've seen only it in spam stuff so let's ignore it (it's even good to catch spam).
// Another set of horrors I've seen is
// Sun, 13 Apr 2008 14:05:54 +0100 (GMT+01:00)
// Sun, 15 Feb 2009 22:48:51 -0800 (Pacific Standard Time)
// Fri, 13 Mar 2009 07:33:20 -0600 (Mountain Daylight Time)
// We again ignore it as it's very rare.
kDebug() << "Unrecognized date format [" << aDateStr.data() << "]: fix this function if you think it's correct :)";
setDate( extractedDate.toTime_t() );
}
//-----------------------------------------------------------------------------
QString KMMsgBase::dateStr(void) const
{
time_t d = date();
return KMime::DateFormatter::formatDate(KMime::DateFormatter::Fancy, d);
}
//-----------------------------------------------------------------------------
QString KMMsgBase::skipKeyword(const QString& aStr, QChar sepChar,
bool* hasKeyword)
{
QString str = aStr;
while (str[0] == ' ') str.remove(0,1);
if (hasKeyword) *hasKeyword=false;
unsigned int i = 0, maxChars = 3;
unsigned int strLength(str.length());
for (i=0; i < strLength && i < maxChars; i++)
{
if (str[i] < 'A' || str[i] == sepChar) break;
}
if (str[i] == sepChar) // skip following spaces too
{
do {
i++;
} while (str[i] == ' ');
if (hasKeyword) *hasKeyword=true;
return str.mid(i);
}
return str;
}
//-----------------------------------------------------------------------------
const QTextCodec* KMMsgBase::codecForName(const QByteArray& _str)
{
if (_str.isEmpty())
return 0;
QByteArray codec = _str;
kAsciiToLower(codec.data());
return KGlobal::charsets()->codecForName(codec);
}
//-----------------------------------------------------------------------------
QByteArray KMMsgBase::toUsAscii(const QString& _str, bool *ok)
{
bool all_ok =true;
QString result = _str;
int len = result.length();
for (int i = 0; i < len; i++)
if (result.at(i).unicode() >= 128) {
result[i] = '?';
all_ok = false;
}
if (ok)
*ok = all_ok;
return result.toLatin1();
}
//-----------------------------------------------------------------------------
QStringList KMMsgBase::supportedEncodings(bool usAscii)
{
QStringList encodingNames = KGlobal::charsets()->availableEncodingNames();
QStringList encodings;
QMap<QString,bool> mimeNames;
for (QStringList::Iterator it = encodingNames.begin();
it != encodingNames.end(); ++it)
{
bool ok;
QTextCodec *codec = KGlobal::charsets()->codecForName( *it, ok );
QString mimeName = codec ? QString( codec->name() ).toLower() : *it;
if ( ok && !mimeNames.contains( mimeName ) )
{
encodings.append( KGlobal::charsets()->descriptionForEncoding( *it ) );
mimeNames.insert( mimeName, true );
}
}
encodings.sort();
if (usAscii)
encodings.prepend(KGlobal::charsets()->descriptionForEncoding("us-ascii") );
return encodings;
}
//-----------------------------------------------------------------------------
QString KMMsgBase::fixEncoding( const QString &encoding )
{
QString returnEncoding = encoding;
// According to http://www.iana.org/assignments/character-sets, uppercase is
// preferred in MIME headers
if ( returnEncoding.toUpper().contains( "ISO " ) ) {
returnEncoding = returnEncoding.toUpper();
returnEncoding.replace( "ISO ", "ISO-" );
}
return returnEncoding;
}
//-----------------------------------------------------------------------------
QString KMMsgBase::encodingForName( const QString &descriptiveName )
{
QString encoding = KGlobal::charsets()->encodingForName( descriptiveName );
return KMMsgBase::fixEncoding( encoding );
}
//-----------------------------------------------------------------------------
QByteArray fallbackCharsetForRFC2047Decoding( const QByteArray &prefCharset )
{
QByteArray charsetName;
if ( !prefCharset.isEmpty() ) {
if ( kasciistricmp( prefCharset.data(), "us-ascii" ) == 0 ) {
charsetName = "utf-8";
} else {
charsetName = prefCharset;
}
} else {
charsetName = GlobalSettings::self()->fallbackCharacterEncoding().toLatin1();
}
const QTextCodec *codec = KMMsgBase::codecForName( charsetName );
if ( ! codec ) {
codec = kmkernel->networkCodec();
}
return codec->name();
}
//-----------------------------------------------------------------------------
QString KMMsgBase::decodeRFC2047String( const QByteArray &aStr,
const QByteArray &prefCharset )
{
QByteArray str = KMime::unfoldHeader( aStr );
QByteArray usedCharset;
QByteArray fallback = fallbackCharsetForRFC2047Decoding( prefCharset );
if ( str.indexOf( "=?" ) < 0 ) {
const QTextCodec *codec = KMMsgBase::codecForName( fallback );
if ( !codec ) {
codec = kmkernel->networkCodec();
}
return codec->toUnicode( str );
}
return KMime::decodeRFC2047String( str, usedCharset, fallback );
}
//-----------------------------------------------------------------------------
static const QByteArray especials = "()<>@,;:\"/[]?.= \033";
QByteArray KMMsgBase::encodeRFC2047Quoted( const QByteArray & s, bool base64 ) {
const char * codecName = base64 ? "b" : "q" ;
const KMime::Codec * codec = KMime::Codec::codecForName( codecName );
if ( !codec ) {
kFatal() << "No \"" << codecName <<"\" found!?";
}
QByteArray in = QByteArray::fromRawData( s.data(), s.length() );
const QByteArray result = codec->encode( in );
in.clear();
return QByteArray( result.data(), result.size());
}
QByteArray KMMsgBase::encodeRFC2047String( const QString& _str,
const QByteArray& charset )
{
static const QString dontQuote = "\"()<>,@";
if (_str.isEmpty()) return QByteArray();
if (charset == "us-ascii") return toUsAscii(_str);
QByteArray cset;
if (charset.isEmpty())
{
cset = kmkernel->networkCodec()->name();
kAsciiToLower(cset.data());
}
else cset = charset;
const QTextCodec *codec = codecForName(cset);
if (!codec) codec = kmkernel->networkCodec();
unsigned int nonAscii = 0;
unsigned int strLength(_str.length());
for (unsigned int i = 0; i < strLength; i++)
if (_str.at(i).unicode() >= 128) nonAscii++;
bool useBase64 = (nonAscii * 6 > strLength);
unsigned int start, stop, p, pos = 0, encLength;
QByteArray result;
bool breakLine = false;
const unsigned int maxLen = 75 - 7 - cset.length();
while (pos < strLength)
{
start = pos; p = pos;
while (p < strLength)
{
if (!breakLine && (_str.at(p) == ' ' || dontQuote.contains(_str.at(p)) ))
start = p + 1;
if (_str.at(p).unicode() >= 128 || _str.at(p).unicode() < 32)
break;
p++;
}
if (breakLine || p < strLength)
{
while (dontQuote.contains(_str.at(start)) ) start++;
stop = start;
while (stop < strLength && !dontQuote.contains(_str.at(stop)) )
stop++;
result += _str.mid(pos, start - pos).toLatin1();
encLength = encodeRFC2047Quoted(codec->fromUnicode(_str.
mid(start, stop - start)), useBase64).length();
breakLine = (encLength > maxLen);
if (breakLine)
{
int dif = (stop - start) / 2;
int step = dif;
while (abs(step) > 1)
{
encLength = encodeRFC2047Quoted(codec->fromUnicode(_str.
mid(start, dif)), useBase64).length();
step = (encLength > maxLen) ? (-abs(step) / 2) : (abs(step) / 2);
dif += step;
}
stop = start + dif;
}
p = (stop >= strLength ? strLength - 1 : stop);
while (p > start && _str.at(p) != ' ') p--;
if (p > start) stop = p;
if (result.right(3) == "?= ") start--;
if (result.right(5) == "?=\n ") {
start--; result.truncate(result.length() - 1);
}
int lastNewLine = result.lastIndexOf("\n ");
if (!result.mid(lastNewLine).trimmed().isEmpty()
&& result.length() - lastNewLine + encLength + 2 > maxLen)
result += "\n ";
result += "=?";
result += cset;
result += (useBase64) ? "?b?" : "?q?";
result += encodeRFC2047Quoted(codec->fromUnicode(_str.mid(start,
stop - start)), useBase64);
result += "?=";
if (breakLine) result += "\n ";
pos = stop;
} else {
result += _str.mid(pos).toLatin1();
break;
}
}
return result;
}
//-----------------------------------------------------------------------------
QByteArray KMMsgBase::encodeRFC2231String( const QString& _str,
const QByteArray& charset )
{
if ( _str.isEmpty() )
return QByteArray();
QByteArray cset;
if ( charset.isEmpty() )
{
cset = kmkernel->networkCodec()->name();
kAsciiToLower( cset.data() );
}
else
cset = charset;
const QTextCodec *codec = codecForName( cset );
QByteArray latin;
if ( charset == "us-ascii" )
latin = toUsAscii( _str );
else if ( codec )
latin = codec->fromUnicode( _str );
else
latin = _str.toLocal8Bit();
char *l;
for ( l = latin.data(); *l; ++l ) {
if ( ( ( *l & 0xE0 ) == 0 ) || ( *l & 0x80 ) )
// *l is control character or 8-bit char
break;
}
if ( !*l )
return latin;
QByteArray result = cset + "''";
for ( l = latin.data(); *l; ++l ) {
bool needsQuoting = ( *l & 0x80 ) || ( *l == '%' );
if( !needsQuoting ) {
int len = especials.length();
for ( int i = 0; i < len; i++ )
if ( *l == especials[i] ) {
needsQuoting = true;
break;
}
}
if ( needsQuoting ) {
result += '%';
unsigned char hexcode;
hexcode = ( ( *l & 0xF0 ) >> 4 ) + 48;
if ( hexcode >= 58 )
hexcode += 7;
result += hexcode;
hexcode = ( *l & 0x0F ) + 48;
if ( hexcode >= 58 )
hexcode += 7;
result += hexcode;
} else {
result += *l;
}
}
return result;
}
//-----------------------------------------------------------------------------
QString KMMsgBase::decodeRFC2231String(const QByteArray& _str)
{
int p = _str.indexOf('\'');
if (p < 0) return kmkernel->networkCodec()->toUnicode(_str);
QByteArray charset = _str.left(p);
QByteArray st = _str.mid(_str.lastIndexOf('\'') + 1);
char ch, ch2;
p = 0;
while (p < (int)st.length())
{
if (st.at(p) == 37)
{
// Only try to decode the percent-encoded character if the percent sign
// is really followed by two other characters, see testcase at bug 163024
if ( p + 2 < st.length() ) {
ch = st.at(p+1) - 48;
if (ch > 16)
ch -= 7;
ch2 = st.at(p+2) - 48;
if (ch2 > 16)
ch2 -= 7;
st[p] = ch * 16 + ch2;
st.remove( p+1, 2 );
}
}
p++;
}
QString result;
const QTextCodec * codec = codecForName( charset );
if ( !codec )
codec = kmkernel->networkCodec();
return codec->toUnicode( st );
}
QByteArray KMMsgBase::extractRFC2231HeaderField( const QByteArray &aStr,
const QByteArray &field )
{
int n = -1;
QByteArray str;
bool found = false;
while ( n <= 0 || found ) {
QString pattern( field );
// match a literal * after the fieldname, as defined by RFC2231
pattern += "[*]";
if ( n >= 0 ) {
// If n<0, check for fieldname*=..., otherwise for fieldname*n=
pattern += QString::number( n ) + "[*]?";
}
pattern += '=';
QRegExp fnamePart( pattern, Qt::CaseInsensitive );
int startPart = fnamePart.indexIn( aStr );
int endPart;
found = ( startPart >= 0 );
if ( found ) {
startPart += fnamePart.matchedLength();
// handle empty field:
if ( startPart == aStr.length() )
return str;
assert( startPart < aStr.length() );
// Quoted values end at the ending quote
if ( startPart < aStr.size() && aStr[startPart] == '"' ) {
startPart++; // the double quote isn't part of the filename
endPart = aStr.indexOf( '"', startPart ) - 1;
} else {
endPart = aStr.indexOf( ';', startPart ) - 1;
}
if ( endPart < 0 ) {
endPart = 32767;
}
str += aStr.mid( startPart, endPart - startPart + 1 ).trimmed();
}
n++;
}
return str;
}
QString KMMsgBase::base64EncodedMD5( const QString & s, bool utf8 ) {
if (s.trimmed().isEmpty()) return "";
if ( utf8 )
return base64EncodedMD5( s.trimmed().toUtf8() ); // QCString overload
else
return base64EncodedMD5( s.trimmed().toLatin1() ); // const char * overload
}
QString KMMsgBase::base64EncodedMD5( const QByteArray & s ) {
if (s.trimmed().isEmpty()) return "";
return base64EncodedMD5( s.trimmed().data() );
}
QString KMMsgBase::base64EncodedMD5( const char * s, int len ) {
if (!s || !len) return "";
static const int Base64EncodedMD5Len = 22;
KMD5 md5( s, len );
return md5.base64Digest().left( Base64EncodedMD5Len );
}
//-----------------------------------------------------------------------------
QByteArray KMMsgBase::autoDetectCharset(const QByteArray &_encoding, const QStringList &encodingList, const QString &text)
{
QStringList charsets = encodingList;
if (!_encoding.isEmpty())
{
QString currentCharset = QString::fromLatin1(_encoding);
charsets.removeAll(currentCharset);
charsets.prepend(currentCharset);
}
QStringList::ConstIterator it = charsets.constBegin();
for (; it != charsets.constEnd(); ++it)
{
QByteArray encoding = (*it).toLatin1();
if (encoding == "locale")
{
encoding = kmkernel->networkCodec()->name();
kAsciiToLower(encoding.data());
}
if (text.isEmpty())
return encoding;
if (encoding == "us-ascii") {
bool ok;
(void) KMMsgBase::toUsAscii(text, &ok);
if (ok)
return encoding;
}
else
{
const QTextCodec *codec = KMMsgBase::codecForName(encoding);
if (!codec) {
kDebug() << "Auto-Charset: Something is wrong and I can not get a codec. [" << encoding <<"]";
} else {
if (codec->canEncode(text))
return encoding;
}
}
}
return 0;
}
//-----------------------------------------------------------------------------
unsigned long KMMsgBase::getMsgSerNum() const
{
unsigned long msn = MessageProperty::serialCache( this );
if (msn)
return msn;
if (mParent) {
int index = mParent->find((KMMsgBase*)this);
msn = KMMsgDict::instance()->getMsgSerNum(mParent, index);
if (msn)
MessageProperty::setSerialCache( this, msn );
}
return msn;
}
//-----------------------------------------------------------------------------
KMMsgAttachmentState KMMsgBase::attachmentState() const
{
if ( mStatus.hasAttachment() )
return KMMsgHasAttachment;
// FIXME
// else if (st & KMMsgStatusHasNoAttach)
// return KMMsgHasNoAttachment;
else
return KMMsgAttachmentUnknown;
}
//-----------------------------------------------------------------------------
static void swapEndian( QString &str )
{
QChar *data = str.data();
while ( !data->isNull() ) {
*data = kmail_swap_16( data->unicode() );
data++;
}
}
//-----------------------------------------------------------------------------
static int g_chunk_length = 0, g_chunk_offset=0;
static uchar *g_chunk = 0;
namespace {
template < typename T > void copy_from_stream( T & x ) {
if( g_chunk_offset + int(sizeof(T)) > g_chunk_length ) {
g_chunk_offset = g_chunk_length;
kDebug() << "This should never happen..";
x = 0;
} else {
// the memcpy is optimized out by the compiler for the values
// of sizeof(T) that is called with
memcpy( &x, g_chunk + g_chunk_offset, sizeof(T) );
g_chunk_offset += sizeof(T);
}
}
}
//-----------------------------------------------------------------------------
QString KMMsgBase::getStringPart(MsgPartType t) const
{
if ( !mStringPartCacheBuilt )
fillStringPartCache();
return mCachedStringParts[t];
}
//-----------------------------------------------------------------------------
void KMMsgBase::fillStringPartCache() const
{
retry:
#ifdef KMAIL_SQLITE_INDEX
bool swapByteOrder = false;
g_chunk = (uchar*)mData;
g_chunk_length = mIndexLength;
#else
bool using_mmap = false;
bool swapByteOrder = storage()->indexSwapByteOrder();
if (storage()->indexStreamBasePtr()) {
if (g_chunk)
free(g_chunk);
using_mmap = true;
if ( mIndexOffset > (off_t)storage()->indexStreamLength() ) {
// This message has not been indexed yet, data would lie
// outside the index data structures so do not touch it.
return;
}
g_chunk = storage()->indexStreamBasePtr() + mIndexOffset;
g_chunk_length = mIndexLength;
} else {
if(!storage()->mIndexStream)
return;
if (g_chunk_length < mIndexLength)
g_chunk = (uchar *)realloc(g_chunk, g_chunk_length = mIndexLength);
off_t first_off = KDE_ftell(storage()->mIndexStream);
KDE_fseek(storage()->mIndexStream, mIndexOffset, SEEK_SET);
fread( g_chunk, mIndexLength, 1, storage()->mIndexStream);
KDE_fseek(storage()->mIndexStream, first_off, SEEK_SET);
}
#endif // !KMAIL_SQLITE_INDEX
MsgPartType type;
quint16 len;
for ( g_chunk_offset = 0; g_chunk_offset < mIndexLength; g_chunk_offset += len ) {
quint32 tmp;
copy_from_stream(tmp);
copy_from_stream(len);
if (swapByteOrder)
{
tmp = kmail_swap_32(tmp);
len = kmail_swap_16(len);
}
type = (MsgPartType) tmp;
if( g_chunk_offset + len > mIndexLength ) {
kWarning() << "This should never happen..";
#ifndef KMAIL_SQLITE_INDEX
if( using_mmap ) {
g_chunk_length = 0;
g_chunk = 0;
}
#endif
if ( !storage()->recreateIndex() )
return;
goto retry;
}
// Only try to create strings if the part is really a string part, see declaration of
// MsgPartType
if ( len && ( ( type >= 1 && type <= 6 ) || type == 11 || type == 14 || type == 15 || type == 19 ) ) {
// This works because the QString constructor does a memcpy.
// Otherwise we would need to be concerned about the alignment.
mCachedStringParts[type] = QString((QChar *)(g_chunk + g_chunk_offset), len/2);
// Normally we need to swap the byte order because the QStrings are written
// in the style of Qt2 (MSB -> network ordered).
// QStrings in Qt3 expect host ordering.
// On e.g. Intel host ordering is LSB, on e.g. Sparc it is MSB.
# if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
// Byte order is little endian (swap is true)
swapEndian( mCachedStringParts[type] );
# else
// Byte order is big endian (swap is false)
# endif
}
} //for
#ifndef KMAIL_SQLITE_INDEX
if(using_mmap) {
g_chunk_length = 0;
g_chunk = 0;
}
#endif
mStringPartCacheBuilt = true;
}
//-----------------------------------------------------------------------------
off_t KMMsgBase::getLongPart(MsgPartType t) const
{
retry:
off_t ret = 0;
#ifdef KMAIL_SQLITE_INDEX
//todo reenable
bool swapByteOrder = false;
int sizeOfLong = sizeof(long);
g_chunk = (uchar*)mData;
g_chunk_length = mIndexLength;
#else
bool using_mmap = false;
bool swapByteOrder = storage()->indexSwapByteOrder();
int sizeOfLong = storage()->indexSizeOfLong();
if (storage()->indexStreamBasePtr()) {
if (g_chunk)
free(g_chunk);
using_mmap = true;
g_chunk = storage()->indexStreamBasePtr() + mIndexOffset;
g_chunk_length = mIndexLength;
} else {
if (!storage()->mIndexStream)
return ret;
assert(mIndexLength >= 0);
if (g_chunk_length < mIndexLength)
g_chunk = (uchar *)realloc(g_chunk, g_chunk_length = mIndexLength);
off_t first_off = KDE_ftell(storage()->mIndexStream);
KDE_fseek(storage()->mIndexStream, mIndexOffset, SEEK_SET);
fread( g_chunk, mIndexLength, 1, storage()->mIndexStream);
KDE_fseek(storage()->mIndexStream, first_off, SEEK_SET);
}
#endif // !KMAIL_SQLITE_INDEX
quint16 len;
for ( g_chunk_offset = 0; g_chunk_offset < mIndexLength; g_chunk_offset += len ) {
quint32 tmp;
copy_from_stream(tmp);
copy_from_stream(len);
if (swapByteOrder)
{
tmp = kmail_swap_32(tmp);
len = kmail_swap_16(len);
}
MsgPartType type = (MsgPartType) tmp;
if (g_chunk_offset + len > mIndexLength) {
kDebug() << "This should never happen..";
#ifndef KMAIL_SQLITE_INDEX
if(using_mmap) {
g_chunk_length = 0;
g_chunk = 0;
}
#endif
if (!storage()->recreateIndex())
return 0;
goto retry;
}
if(type == t) {
assert(sizeOfLong == len);
if (sizeOfLong == sizeof(ret))
{
copy_from_stream(ret);
if (swapByteOrder)
{
if (sizeof(ret) == 4)
ret = kmail_swap_32(ret);
else
ret = kmail_swap_64(ret);
}
}
else if (sizeOfLong == 4)
{
// Long is stored as 4 bytes in index file, sizeof(long) = 8
quint32 ret_32;
copy_from_stream(ret_32);
if (swapByteOrder)
ret_32 = kmail_swap_32(ret_32);
ret = ret_32;
}
else if (sizeOfLong == 8)
{
// Long is stored as 8 bytes in index file, sizeof(long) = 4
quint32 ret_1;
quint32 ret_2;
copy_from_stream(ret_1);
copy_from_stream(ret_2);
if (!swapByteOrder)
{
// Index file order is the same as the order of this CPU.
#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
// Index file order is little endian
ret = ret_1; // We drop the 4 most significant bytes
#else
// Index file order is big endian
ret = ret_2; // We drop the 4 most significant bytes
#endif
}
else
{
// Index file order is different from this CPU.
#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
// Index file order is big endian
ret = ret_2; // We drop the 4 most significant bytes
#else
// Index file order is little endian
ret = ret_1; // We drop the 4 most significant bytes
#endif
// We swap the result to host order.
ret = kmail_swap_32(ret);
}
}
break;
}
} // for
#ifndef KMAIL_SQLITE_INDEX
if(using_mmap) {
g_chunk_length = 0;
g_chunk = 0;
}
#endif
return ret;
}
#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
// We need to use swab to swap bytes to network byte order
#define memcpy_networkorder(to, from, len) swab((char *)(from), (char *)(to), len)
#else
// We're already in network byte order
#define memcpy_networkorder(to, from, len) memcpy(to, from, len)
#endif
#define STORE_DATA_LEN(type, x, len, network_order) \
do { \
int len2 = (len > 256) ? 256 : len; \
if(csize < (length + (len2 + sizeof(short) + sizeof(MsgPartType)))) \
ret = (uchar *)realloc(ret, csize += len2+sizeof(short)+sizeof(MsgPartType)); \
quint32 t = (quint32) type; memcpy(ret+length, &t, sizeof(t)); \
quint16 l = len2; memcpy(ret+length+sizeof(t), &l, sizeof(l)); \
if (network_order) \
memcpy_networkorder(ret+length+sizeof(t)+sizeof(l), x, len2); \
else \
memcpy(ret+length+sizeof(t)+sizeof(l), x, len2); \
length += len2+sizeof(t)+sizeof(l); \
} while(0)
#define STORE_DATA(type, x) STORE_DATA_LEN(type, &x, sizeof(x), false)
//-----------------------------------------------------------------------------
const uchar *KMMsgBase::asIndexString(int &length) const
{
unsigned int csize = 256;
static uchar *ret = 0; //different static buffer here for we may use the other buffer in the functions below
if(!ret) {
ret = (uchar *)malloc(csize);
}
length = 0;
unsigned long tmp;
QString tmp_str;
//these is at the beginning because it is queried quite often
tmp_str = msgIdMD5().trimmed();
STORE_DATA_LEN(MsgIdMD5Part, tmp_str.unicode(), tmp_str.length() * 2, true);
tmp = 0;
STORE_DATA(MsgLegacyStatusPart, tmp);
//these are completely arbitrary order
tmp_str = fromStrip().trimmed();
STORE_DATA_LEN(MsgFromPart, tmp_str.unicode(), tmp_str.length() * 2, true);
tmp_str = tagString().trimmed();
STORE_DATA_LEN(MsgTagPart, tmp_str.unicode(), tmp_str.length() * 2, true);
tmp_str = subject().trimmed();
STORE_DATA_LEN(MsgSubjectPart, tmp_str.unicode(), tmp_str.length() * 2, true);
tmp_str = toStrip().trimmed();
STORE_DATA_LEN(MsgToPart, tmp_str.unicode(), tmp_str.length() * 2, true);
tmp_str = replyToIdMD5().trimmed();
STORE_DATA_LEN(MsgReplyToIdMD5Part, tmp_str.unicode(), tmp_str.length() * 2, true);
tmp_str = xmark().trimmed();
STORE_DATA_LEN(MsgXMarkPart, tmp_str.unicode(), tmp_str.length() * 2, true);
tmp_str = fileName().trimmed();
STORE_DATA_LEN(MsgFilePart, tmp_str.unicode(), tmp_str.length() * 2, true);
tmp = msgSize();
STORE_DATA(MsgSizePart, tmp);
tmp = folderOffset();
STORE_DATA(MsgOffsetPart, tmp);
tmp = date();
STORE_DATA(MsgDatePart, tmp);
tmp = (signatureState() << 16) | encryptionState();
STORE_DATA(MsgCryptoStatePart, tmp);
tmp = mdnSentState();
STORE_DATA(MsgMDNSentPart, tmp);
tmp_str = replyToAuxIdMD5().trimmed();
STORE_DATA_LEN(MsgReplyToAuxIdMD5Part, tmp_str.unicode(), tmp_str.length() * 2, true);
tmp_str = strippedSubjectMD5().trimmed();
STORE_DATA_LEN(MsgStrippedSubjectMD5Part, tmp_str.unicode(), tmp_str.length() * 2, true);
tmp = mStatus.toQInt32();
STORE_DATA(MsgStatusPart, tmp);
tmp = msgSizeServer();
STORE_DATA(MsgSizeServerPart, tmp);
tmp = UID();
STORE_DATA(MsgUIDPart, tmp);
return ret;
}
#undef STORE_DATA_LEN
#undef STORE_DATA
#ifndef KMAIL_SQLITE_INDEX
bool KMMsgBase::syncIndexString() const
{
if(!dirty())
return true;
int len;
const uchar *buffer = asIndexString(len);
if (len != mIndexLength)
return false;
Q_ASSERT(storage()->mIndexStream);
KDE_fseek(storage()->mIndexStream, mIndexOffset, SEEK_SET);
assert( mIndexOffset > 0 );
if ( fwrite( buffer, len, 1, storage()->mIndexStream) != 1 )
return false;
return true;
}
#endif
static QStringList sReplySubjPrefixes, sForwardSubjPrefixes;
static bool sReplaceSubjPrefix, sReplaceForwSubjPrefix;
//-----------------------------------------------------------------------------
void KMMsgBase::readConfig()
{
KConfigGroup composerGroup( KMKernel::config(), "Composer" );
sReplySubjPrefixes = composerGroup.readEntry("reply-prefixes", QStringList());
if (sReplySubjPrefixes.isEmpty())
sReplySubjPrefixes << "Re\\s*:" << "Re\\[\\d+\\]:" << "Re\\d+:";
sReplaceSubjPrefix =
composerGroup.readEntry( "replace-reply-prefix", true );
sForwardSubjPrefixes = composerGroup.readEntry("forward-prefixes", QStringList());
if (sForwardSubjPrefixes.isEmpty())
sForwardSubjPrefixes << "Fwd:" << "FW:";
sReplaceForwSubjPrefix =
composerGroup.readEntry( "replace-forward-prefix", true );
}
//-----------------------------------------------------------------------------
// static
QString KMMsgBase::stripOffPrefixes( const QString& str )
{
return replacePrefixes( str, sReplySubjPrefixes + sForwardSubjPrefixes,
true, QString() ).trimmed();
}
//-----------------------------------------------------------------------------
// static
QString KMMsgBase::replacePrefixes( const QString& str,
const QStringList& prefixRegExps,
bool replace,
const QString& newPrefix )
{
bool recognized = false;
// construct a big regexp that
// 1. is anchored to the beginning of str (sans whitespace)
// 2. matches at least one of the part regexps in prefixRegExps
QString bigRegExp = QString::fromLatin1("^(?:\\s+|(?:%1))+\\s*")
.arg( prefixRegExps.join(")|(?:") );
QRegExp rx( bigRegExp, Qt::CaseInsensitive );
if ( !rx.isValid() ) {
kWarning() << "bigRegExp = \""
<< bigRegExp << "\"\n"
<< "prefix regexp is invalid!";
// try good ole Re/Fwd:
recognized = str.startsWith( newPrefix );
} else { // valid rx
QString tmp = str;
if ( rx.indexIn( tmp ) == 0 ) {
recognized = true;
if ( replace )
return tmp.replace( 0, rx.matchedLength(), newPrefix + ' ' );
}
}
if ( !recognized )
return newPrefix + ' ' + str;
else
return str;
}
void KMMsgBase::setTagList( const QString &aTagStr )
{
setTagList( KMMessageTagList::split( ",", aTagStr ) );
}
void KMMsgBase::setTagList( const KMMessageTagList &aTagList )
{
if ( !mTagList ) {
mTagList = new KMMessageTagList( aTagList );
} else {
if ( aTagList == *mTagList )
return;
*mTagList = aTagList;
}
mTagList->prioritySort();
mDirty = true;
if (storage())
{
int idx = storage()->find( this );
if( mParent )
mParent->msgTagListChanged( idx );
}
}
//-----------------------------------------------------------------------------
QString KMMsgBase::cleanSubject() const
{
return cleanSubject( sReplySubjPrefixes + sForwardSubjPrefixes,
true, QString() ).trimmed();
}
//-----------------------------------------------------------------------------
QString KMMsgBase::cleanSubject( const QStringList & prefixRegExps,
bool replace,
const QString & newPrefix ) const
{
return KMMsgBase::replacePrefixes( subject(), prefixRegExps, replace,
newPrefix );
}
//-----------------------------------------------------------------------------
QString KMMsgBase::forwardSubject() const {
return cleanSubject( sForwardSubjPrefixes, sReplaceForwSubjPrefix, "Fwd:" );
}
//-----------------------------------------------------------------------------
QString KMMsgBase::replySubject() const {
return cleanSubject( sReplySubjPrefixes, sReplaceSubjPrefix, "Re:" );
}