hermes/src/Exception.cpp

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2008-12-14 20:12:48 +01:00
/**
* hermes antispam proxy
* Copyright (C) 2006, 2007 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* @author Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
*/
#include "Exception.h"
extern Configfile cfg;
extern LOGGER_CLASS hermes_log;
Exception::Exception(string p_error,string p_file,unsigned p_line)
{
error=p_error;
#ifdef NOTIFY_EXCEPTIONS
if(cfg.getNotifyTo()!="")
{
try
{
notifyByEmail("Exception: "+p_error);
}
catch(NotifyException &e)
{
LERR(e);
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}
}
#endif //NOTIFY_EXCEPTIONS
file=p_file;
line=p_line;
}
Exception::operator string()
{
return file+":"+Utils::inttostr(line)+": "+error;
}
ostream& operator<<(ostream &os,Exception &e)
{
os << string(e);
return os;
}
#ifdef NOTIFY_EXCEPTIONS
#ifdef USE_SMTP_FOR_NOTIFICATIONS
/**
* notify problem by email to address, using an smtp server
*
* it will add some text before the message to be identificable
* this function only makes mild error-checks on codes returned
* by server, so some email might not reach destination
* this functions' mission in life is help those poor souls still
* using windows(and others), as they just don't have sendmail or popen,
* wich is way faster, way less complicated and much less error-prone
* also if you're using chroot, you might want to use smtp instead of sendmail
* as it is a much simpler setup
*
* @param string message message of the problem
*
* @return void
*/
void Exception::notifyByEmail(string message)
{
Socket smtpServer;
string address=cfg.getNotifyTo();
string response;
if(""==address)
throw Exception(_("Notification address is incorrect or empty, please check"),__FILE__,__LINE__);
smtpServer.init();
smtpServer.connect(cfg.getServerHost(),cfg.getServerPort());
#ifdef HAVE_SSL
if(cfg.getOutgoingSSL())
smtpServer.enableSSL(false);
#endif //HAVE_SSL
#define ERROR_SENDING(x,y,z) if(x.substr(0,3)!=y) throw NotifyException(_("Error "+x.substr(0,3)+" sending email after ")+z);
#define GET_RESPONSE_AND_CHECK(x,y) response=smtpServer.readLine(); ERROR_SENDING(response,x,y); cout << "s:" << response << endl;
#define SEND_COMMAND_AND_CHECK(x,y,z) smtpServer.writeLine(x); cout << "c:" << x << endl; GET_RESPONSE_AND_CHECK(y,z);
#define DEBUGSRV() //if(smtpServer.canRead(1)) cout << "s:" << smtpServer.readLine() << endl;
GET_RESPONSE_AND_CHECK("220","CONNECT");
SEND_COMMAND_AND_CHECK("HELO localhost","250","EHLO");
SEND_COMMAND_AND_CHECK("MAIL FROM: \"hermes daemon\"<hermes@localhost>","250","MAIL FROM");
SEND_COMMAND_AND_CHECK("RCPT TO: "+address,"250","RCPT TO");
SEND_COMMAND_AND_CHECK("DATA","354","DATA");
smtpServer.writeLine("From: \"hermes daemon\"<hermes@localhost>");
DEBUGSRV();
smtpServer.writeLine("To: "+address);
DEBUGSRV();
smtpServer.writeLine("Subject: Exception happened on hermes");
DEBUGSRV();
smtpServer.writeLine("");
DEBUGSRV();
smtpServer.writeLine("Hello "+address+",");
DEBUGSRV();
smtpServer.writeLine("Hermes gave an error, with the following error message:");
DEBUGSRV();
smtpServer.writeLine(message);
DEBUGSRV();
smtpServer.writeLine(".");
GET_RESPONSE_AND_CHECK("250","sending data contents");
SEND_COMMAND_AND_CHECK("QUIT","221","QUIT");
#undef ERROR_SENDING
#undef GET_RESPONSE_AND_CHECK
#undef SEND_COMMAND_AND_CHECK
}
#else //THEN USE sendmail to send the email
void Exception::notifyByEmail(string message)
{
FILE *sendmail;
string address=cfg.getNotifyTo();
sendmail=popen("/var/qmail/bin/sendmail -t","w");
if(NULL==sendmail)
throw NotifyException(_("Couldn't initialize sendmail command"));
fprintf(sendmail,"From: \"hermes daemon\"<hermes@localhost>\n");
fprintf(sendmail,"To: %s\n",address.c_str());
fprintf(sendmail,"Subject: Exception happened on hermes\n");
fprintf(sendmail,"\n");
fprintf(sendmail,"Hello %s,\n",address.c_str());
fprintf(sendmail,"Hermes gave an error, with the following error message:\n");
fprintf(sendmail,"%s\n",message.c_str());
fflush(sendmail);
pclose(sendmail);
}
#endif //USE_SMTP_FOR_NOTIFICATIONS
#endif //NOTIFY_EXCEPTIONS