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371 lines
10 KiB
371 lines
10 KiB
/*
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kircmessage.cpp - IRC Client
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Copyright (c) 2003 by Michel Hermier <michel.hermier@wanadoo.fr>
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Kopete (c) 2003 by the Kopete engineelopers <kopete-engineel@kde.org>
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*************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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*************************************************************************
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*/
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#include "kircengine.h"
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#include "kircmessage.h"
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// FIXME: Remove the following dependencies.
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#include "kopetemessage.h"
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#include "ksparser.h"
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#include <kdebug.h>
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#include <kextsock.h>
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#include <klocale.h>
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#include <kmessagebox.h>
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using namespace KIRC;
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#ifndef _IRC_STRICTNESS_
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QRegExp Message::m_IRCNumericCommand("^\\d{1,3}$");
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// TODO: This regexp parsing is no good. It's slower than it needs to be, and
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// is not codec-safe since QString requires a codec. NEed to parse this with
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// our own parsing class that operates on the raw QCStrings
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QRegExp Message::m_IRCCommandType1(
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"^(?::([^ ]+) )?([A-Za-z]+|\\d{1,3})((?: [^ :][^ ]*)*) ?(?: :(.*))?$");
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// Extra end arg space check -------------------------^
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#else // _IRC_STRICTNESS_
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QRegExp Message::m_IRCNumericCommand("^\\d{3,3}$");
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QRegExp Message::m_IRCCommandType1(
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"^(?::([^ ]+) )?([A-Za-z]+|\\d{3,3})((?: [^ :][^ ]*){0,13})(?: :(.*))?$");
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QRegExp Message::m_IRCCommandType2(
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"^(?::[[^ ]+) )?([A-Za-z]+|\\d{3,3})((?: [^ :][^ ]*){14,14})(?: (.*))?$");
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#endif // _IRC_STRICTNESS_
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Message::Message()
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: m_ctcpMessage(0)
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{
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}
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Message::Message(const Message &obj)
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: m_ctcpMessage(0)
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{
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m_raw = obj.m_raw;
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m_prefix = obj.m_prefix;
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m_command = obj.m_command;
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m_args = obj.m_args;
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m_suffix = obj.m_suffix;
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m_ctcpRaw = obj.m_ctcpRaw;
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if (obj.m_ctcpMessage)
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m_ctcpMessage = new Message(obj.m_ctcpMessage);
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}
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Message::Message(const Message *obj)
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: m_ctcpMessage(0)
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{
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m_raw = obj->m_raw;
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m_prefix = obj->m_prefix;
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m_command = obj->m_command;
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m_args = obj->m_args;
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m_suffix = obj->m_suffix;
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m_ctcpRaw = obj->m_ctcpRaw;
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if (obj->m_ctcpMessage)
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m_ctcpMessage = new Message(obj->m_ctcpMessage);
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}
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Message::~Message()
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{
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if (m_ctcpMessage)
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delete m_ctcpMessage;
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}
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void Message::writeRawMessage(Engine *engine, const QTextCodec *codec, const QString &str)
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{
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// FIXME: Really handle this
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if (!engine->socket())
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{
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kdDebug(14121) << k_funcinfo << "Not connected while attempting to write:" << str << endl;
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return;
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}
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QString txt = str + QString::fromLatin1("\r\n");
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QCString s(codec->fromUnicode(txt));
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kdDebug(14120) << "Message is " << s.length() << " chars" << endl;
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// FIXME: Should check the amount of data really writen.
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int wrote = engine->socket()->writeBlock(s.data(), s.length());
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kdDebug(14121) << QString::fromLatin1("(%1 bytes) >> %2").arg(wrote).arg(str) << endl;
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}
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void Message::writeMessage(Engine *engine, const QTextCodec *codec, const QString &message)
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{
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writeRawMessage(engine, codec, quote(message));
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}
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void Message::writeMessage(Engine *engine, const QTextCodec *codec,
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const QString &command, const QStringList &args, const QString &suffix)
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{
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QString msg = command;
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if (!args.isEmpty())
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msg += QChar(' ') + args.join(QChar(' ')).stripWhiteSpace(); // some extra check should be done here
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if (!suffix.isNull())
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msg = msg.stripWhiteSpace() + QString::fromLatin1(" :") + suffix;
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writeMessage(engine, codec, msg);
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}
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void Message::writeCtcpMessage(Engine *engine, const QTextCodec *codec,
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const QString &command, const QString&to,
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const QString &ctcpMessage)
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{
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writeMessage(engine, codec, command, to, QChar(0x01) + ctcpQuote(ctcpMessage) + QChar(0x01));
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}
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void Message::writeCtcpMessage(Engine *engine, const QTextCodec *codec,
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const QString &command, const QString &to, const QString &suffix,
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const QString &ctcpCommand, const QStringList &ctcpArgs, const QString &ctcpSuffix )
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{
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QString ctcpMsg = ctcpCommand;
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if (!ctcpArgs.isEmpty())
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ctcpMsg += QChar(' ') + ctcpArgs.join(QChar(' ')).stripWhiteSpace(); // some extra check should be done here
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if (!ctcpSuffix.isNull())
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ctcpMsg += QString::fromLatin1(" :") + ctcpSuffix;
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writeMessage(engine, codec, command, to, suffix + QChar(0x01) + ctcpQuote(ctcpMsg) + QChar(0x01));
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}
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Message Message::parse(Engine *engine, const QTextCodec *codec, bool *parseSuccess)
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{
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if (parseSuccess)
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*parseSuccess=false;
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if (engine->socket()->canReadLine())
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{
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QCString raw(engine->socket()->bytesAvailable()+1);
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Q_LONG length = engine->socket()->readLine(raw.data(), raw.count());
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if( length > -1 )
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{
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raw.resize( length );
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// Remove trailing '\r\n' or '\n'.
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//
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// Some servers send '\n' instead of '\r\n' that the RFCs say they should be sending.
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if (length > 1 && raw.at(length-2) == '\n') {
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raw.at(length-2) = '\0';
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}
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if (length > 2 && raw.at(length-3) == '\r') {
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raw.at(length-3) = '\0';
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}
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kdDebug(14121) << "<< " << raw << endl;
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Message msg;
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if(matchForIRCRegExp(raw, codec, msg))
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{
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if(parseSuccess)
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*parseSuccess = true;
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}
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else
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{
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kdDebug(14120) << k_funcinfo << "Unmatched line: \"" << raw << "\"" << endl;
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}
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return msg;
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}
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else
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kdWarning(14121) << k_funcinfo << "Failed to read a line while canReadLine returned true!" << endl;
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}
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return Message();
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}
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QString Message::quote(const QString &str)
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{
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QString tmp = str;
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QChar q('\020');
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tmp.replace(q, q+QString(q));
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tmp.replace(QChar('\r'), q+QString::fromLatin1("r"));
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tmp.replace(QChar('\n'), q+QString::fromLatin1("n"));
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tmp.replace(QChar('\0'), q+QString::fromLatin1("0"));
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return tmp;
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}
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// FIXME: The unquote system is buggy.
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QString Message::unquote(const QString &str)
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{
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QString tmp = str;
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char b[3] = { 020, 020, '\0' };
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const char b2[2] = { 020, '\0' };
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tmp.replace( b, b2 );
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b[1] = 'r';
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tmp.replace( b, "\r");
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b[1] = 'n';
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tmp.replace( b, "\n");
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b[1] = '0';
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tmp.replace( b, "\0");
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return tmp;
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}
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QString Message::ctcpQuote(const QString &str)
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{
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QString tmp = str;
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tmp.replace( QChar('\\'), QString::fromLatin1("\\\\"));
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tmp.replace( (char)1, QString::fromLatin1("\\1"));
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return tmp;
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}
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QString Message::ctcpUnquote(const QString &str)
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{
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QString tmp = str;
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tmp.replace("\\\\", "\\");
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tmp.replace("\\1", "\1" );
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return tmp;
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}
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bool Message::matchForIRCRegExp(const QCString &line, const QTextCodec *codec, Message &message)
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{
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if(matchForIRCRegExp(m_IRCCommandType1, codec, line, message))
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return true;
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#ifdef _IRC_STRICTNESS_
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if(!matchForIRCRegExp(m_IRCCommandType2, codec, line, message))
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return true;
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#endif // _IRC_STRICTNESS_
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return false;
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}
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// FIXME: remove the decodeStrings calls or update them.
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// FIXME: avoid the recursive call, it make the ctcp command unquoted twice (wich is wrong, but valid in most of the cases)
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bool Message::matchForIRCRegExp(QRegExp ®exp, const QTextCodec *codec, const QCString &line, Message &msg )
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{
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if( regexp.exactMatch( codec->toUnicode(line) ) )
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{
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msg.m_raw = line;
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msg.m_prefix = unquote(regexp.cap(1));
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msg.m_command = unquote(regexp.cap(2));
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msg.m_args = QStringList::split(' ', regexp.cap(3));
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QCString suffix = codec->fromUnicode(unquote(regexp.cap(4)));
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if (!suffix.isNull() && suffix.length() > 0)
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{
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QCString ctcpRaw;
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if (extractCtcpCommand(suffix, ctcpRaw))
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{
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msg.m_ctcpRaw = codec->toUnicode(ctcpRaw);
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msg.m_ctcpMessage = new Message();
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msg.m_ctcpMessage->m_raw = codec->fromUnicode(ctcpUnquote(msg.m_ctcpRaw));
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int space = ctcpRaw.find(' ');
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if (!matchForIRCRegExp(msg.m_ctcpMessage->m_raw, codec, *msg.m_ctcpMessage))
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{
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QCString command;
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if (space > 0)
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command = ctcpRaw.mid(0, space).upper();
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else
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command = ctcpRaw.upper();
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msg.m_ctcpMessage->m_command =
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Kopete::Message::decodeString( KSParser::parse(command), codec );
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}
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if (space > 0)
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msg.m_ctcpMessage->m_ctcpRaw =
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Kopete::Message::decodeString( KSParser::parse(ctcpRaw.mid(space)), codec );
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}
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msg.m_suffix = Kopete::Message::decodeString( KSParser::parse(suffix), codec );
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}
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else
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msg.m_suffix = QString::null;
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return true;
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}
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return false;
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}
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void Message::decodeAgain( const QTextCodec *codec )
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{
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matchForIRCRegExp(m_raw, codec, *this);
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}
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// FIXME: there are missing parts
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QString Message::toString() const
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{
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if( !isValid() )
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return QString::null;
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QString msg = m_command;
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for (QStringList::ConstIterator it = m_args.begin(); it != m_args.end(); ++it)
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msg += QChar(' ') + *it;
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if (!m_suffix.isNull())
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msg += QString::fromLatin1(" :") + m_suffix;
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return msg;
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}
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bool Message::isNumeric() const
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{
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return m_IRCNumericCommand.exactMatch(m_command);
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}
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bool Message::isValid() const
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{
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// This could/should be more complex but the message validity is tested durring the parsing
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// So this is enougth as we don't allow the editing the content.
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return !m_command.isEmpty();
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}
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/* Return true if the given string is a special command string
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* (i.e start and finish with the ascii code \001), and the given
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* string is splited to get the first part of the message and fill the ctcp command.
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* FIXME: The code currently only match for a textual message or a ctcp message not both mixed as it can be (even if very rare).
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*/
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bool Message::extractCtcpCommand(QCString &message, QCString &ctcpline)
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{
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uint len = message.length();
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if( message[0] == 1 && message[len-1] == 1 )
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{
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ctcpline = message.mid(1,len-2);
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message.truncate(0);
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return true;
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}
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return false;
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}
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void Message::dump() const
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{
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kdDebug(14120) << "Raw:" << m_raw << endl
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<< "Prefix:" << m_prefix << endl
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<< "Command:" << m_command << endl
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<< "Args:" << m_args << endl
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<< "Suffix:" << m_suffix << endl
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<< "CtcpRaw:" << m_ctcpRaw << endl;
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if(m_ctcpMessage)
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{
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kdDebug(14120) << "Contains CTCP Message:" << endl;
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m_ctcpMessage->dump();
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}
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}
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