diff options
Diffstat (limited to 'korn/mailsubject.cpp')
| -rw-r--r-- | korn/mailsubject.cpp | 189 |
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() ); +} + |