Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 189 insertions, 0 deletions

diff --git a/korn/mailsubject.cpp b/korn/mailsubject.cpp
new file mode 100644
index 00000000..1f2011a0
--- /dev/null
+++ b/korn/mailsubject.cpp
@@ -0,0 +1,189 @@
+#include"mailsubject.h"
+
+#include <kmime_codecs.h>
+#include <kcharsets.h>
+#include <kdebug.h>
+#include <kglobal.h>
+#include <klocale.h>
+#include <qdatetime.h>
+#include <qtextcodec.h>
+#include <ctype.h>
+
+KornMailSubject::KornMailSubject() : _id(0), _drop(0), _size(-1), _date(-1), _fullMessage(false)
+{
+}
+
+KornMailSubject::KornMailSubject(KornMailId * id, KMailDrop *drop)
+	: _id(id), _drop( drop ), _size(-1), _date(-1), _fullMessage(false)
+{
+}
+
+KornMailSubject::KornMailSubject(const KornMailSubject & src)
+	: _id(0), _drop(0), _size(-1), _date(-1)
+{
+	operator=(src);
+}
+
+KornMailSubject & KornMailSubject::operator= (const KornMailSubject & src)
+{
+	_size = src._size;
+	_date = src._date;
+	_subject = src._subject;
+	_sender = src._sender;
+	_header = src._header;
+	_fullMessage = src._fullMessage;
+	if (_id)
+		delete _id;
+	_id = 0;
+	if (src._id)
+		_id = src._id->clone();
+	_drop = src._drop;
+	return *this;
+}
+
+KornMailSubject::~KornMailSubject()
+{
+	if (_id)
+		delete _id;
+	_id = 0;
+}
+
+QString KornMailSubject::toString() const
+{
+	QDateTime date;
+	date.setTime_t(_date);
+	return QString("KornMailSubject, Id: ") + (_id?_id->toString():QString("NULL")) + ", " + i18n("Subject:") + " " + _subject
+		+ ", " + i18n("Sender:") + " " + _sender + ", " + i18n("Size:") + " " + QString::number(_size)
+		+ ", " + i18n("Date:") + " " + date.toString(Qt::ISODate);
+}
+
+QString KornMailSubject::decodeRFC2047String(const QCString& aStr)
+{
+	if ( aStr.isEmpty() )
+		return QString::null;
+
+	const QCString str = unfold( aStr );
+
+	if ( str.isEmpty() )
+		return QString::null;
+
+	if ( str.find( "=?" ) < 0 ) {
+		// No need to decode
+		return QString(str);
+	}
+
+	QString result;
+	QCString LWSP_buffer;
+	bool lastWasEncodedWord = false;
+
+	for ( const char * pos = str.data() ; *pos ; ++pos ) {
+		// collect LWSP after encoded-words,
+		// because we might need to throw it out
+		// (when the next word is an encoded-word)
+		if ( lastWasEncodedWord && isBlank( pos[0] ) ) {
+			LWSP_buffer += pos[0];
+			continue;
+		}
+		// verbatimly copy normal text
+		if (pos[0]!='=' || pos[1]!='?') {
+			result += LWSP_buffer + pos[0];
+			LWSP_buffer = 0;
+			lastWasEncodedWord = false;
+			continue;
+		}
+		// found possible encoded-word
+		const char * const beg = pos;
+		{
+			// parse charset name
+			QCString charset;
+			int i = 2;
+			pos += 2;
+			for ( ; *pos != '?' && ( *pos==' ' || ispunct(*pos) || isalnum(*pos) ); ++i, ++pos ) {
+				charset += *pos;
+			}
+			if ( *pos!='?' || i<4 )
+				goto invalid_encoded_word;
+
+			// get encoding and check delimiting question marks
+			const char encoding[2] = { pos[1], '\0' };
+			if (pos[2]!='?' || (encoding[0]!='Q' && encoding[0]!='q' &&
+			    encoding[0]!='B' && encoding[0]!='b'))
+				goto invalid_encoded_word;
+			pos+=3; i+=3; // skip ?x?
+			const char * enc_start = pos;
+			// search for end of encoded part
+			while ( *pos && !(*pos=='?' && *(pos+1)=='=') ) {
+				i++;
+				pos++;
+			}
+			if ( !*pos )
+				goto invalid_encoded_word;
+
+			// valid encoding: decode and throw away separating LWSP
+			const KMime::Codec * c = KMime::Codec::codecForName( encoding );
+			kdFatal( !c ) << "No \"" << encoding << "\" codec!?" << endl;
+
+			QByteArray in; in.setRawData( enc_start, pos - enc_start );
+			const QByteArray enc = c->decode( in );
+			in.resetRawData( enc_start, pos - enc_start );
+
+			const QTextCodec * codec = codecForName(charset);
+			if (!codec) return QString::null;
+			result += codec->toUnicode(enc);
+			lastWasEncodedWord = true;
+
+			++pos; // eat '?' (for loop eats '=')
+			LWSP_buffer = 0;
+		}
+		continue;
+invalid_encoded_word:
+		// invalid encoding, keep separating LWSP.
+		pos = beg;
+		if ( !LWSP_buffer.isNull() )
+		result += LWSP_buffer;
+		result += "=?";
+		lastWasEncodedWord = false;
+		++pos; // eat '?' (for loop eats '=')
+		LWSP_buffer = 0;
+	}
+	return result;
+}
+
+QCString KornMailSubject::unfold( const QCString & header )
+{
+	if ( header.isEmpty() )
+		return QCString();
+
+	QCString result( header.size() ); // size() >= length()+1 and size() is O(1)
+	char * d = result.data();
+
+	for ( const char * s = header.data() ; *s ; )
+		if ( *s == '\r' ) { // ignore
+			++s;
+			continue;
+		} else if ( *s == '\n' ) { // unfold
+			while ( this->isBlank( *++s ) );
+			*d++ = ' ';
+		} else
+			*d++ = *s++;
+
+	*d++ = '\0';
+
+	result.truncate( d - result.data() );
+	return result;
+}
+
+//-----------------------------------------------------------------------------
+const QTextCodec* KornMailSubject::codecForName(const QCString& _str)
+{
+	if (_str.isEmpty()) return 0;
+		QCString codec = _str;
+	return KGlobal::charsets()->codecForName(codec);
+}
+
+void KornMailSubject::decodeHeaders()
+{
+	_subject = decodeRFC2047String( _subject.latin1() );
+	_sender = decodeRFC2047String( _sender.latin1() );
+}
+