irc_cmd.c

   1 /*  irc_cmd.c - Functions which allows parse and execute
   2  *              a set of commands into the IRC bot.
   3  *  =====================================================
   4  *
   5  *  Copyright (C) 2009  "Carlos Ríos Vera" <crosvera@gmail.com>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  **********************************************************/
  22
  23 #include <stdio.h>
  24 #include <string.h>
  25 #include <stdlib.h>
  26
  27 #include "irc_cmd.h"
  28 #include "config.h"
  29 #include "log.h"
  30
  31 static struct irc_msg *master_command( const char *raw_msg, struct _config *config ){
  32
  33     char *ptr = NULL, *msg_to_send = NULL;
  34     struct irc_msg *IRCmsg = NULL;
  35
  36     /* Did `config->master'said something important like a command to the bot ?
  37      * ***REMEMBER*** these commands must be sent via a PRIVMSG to the bot from
  38      * the `config->master'.
  39      ***************************************************************************/
  40     char *PRIVMSG = (char *)calloc( 1 +
  41             strlen("PRIVMSG  ") + strlen(config->irc_nick), sizeof(char) );
  42
  43     sprintf( PRIVMSG, "PRIVMSG %s ", config->irc_nick );
  44     int privmsg_len = strlen(PRIVMSG);
  45
  46     if( strncmp(PRIVMSG, raw_msg, privmsg_len) == 0 ){
  47         /* What command did `config->master` sent ? */
  48
  49         /** the !say command? **/
  50         ptr = strstr( &raw_msg[privmsg_len], ":!say " );
  51         if( ptr != NULL ){
  52             IRCmsg = (struct irc_msg *)malloc( sizeof(struct irc_msg) );
  53
  54             msg_to_send = (char *)calloc( 1 +
  55                 strlen(&ptr[6]) + strlen("PRIVMSG  :") + strlen(config->irc_channel) , sizeof(char) );
  56             sprintf(msg_to_send, "PRIVMSG %s :%s", config->irc_channel, &ptr[6]);
  57
  58             IRCmsg->type = NORMAL_MSG;
  59             IRCmsg->msg = msg_to_send;
  60             IRCmsg->msg_log = msg_to_send;
  61
  62             return IRCmsg;
  63         }/*** END !say COMMAND */
  64
  65         /** The !quit command? **/
  66         ptr = strstr( &raw_msg[privmsg_len], ":!quit");
  67         if( ptr != NULL ){
  68             IRCmsg = (struct irc_msg *)malloc( sizeof(struct irc_msg) );
  69
  70             IRCmsg->type    = EXIT;
  71             IRCmsg->msg     = "QUIT";
  72             IRCmsg->msg_log = "EXIT command recived from the master.... BYE!\n";
  73
  74             return IRCmsg;
  75         }/*** END !quit COMMAND **/
  76
  77         /** The !raw command? **/
  78         ptr = strstr( &raw_msg[privmsg_len], ":!raw");
  79         if( ptr != NULL ){
  80             IRCmsg = (struct irc_msg *)malloc( sizeof(struct irc_msg) );
  81
  82             IRCmsg->type    = NORMAL_MSG;
  83             IRCmsg->msg     = &ptr[6];
  84             IRCmsg->msg_log = &ptr[6];
  85
  86             return IRCmsg;
  87         }/** END !raw COMMAND **/
  88
  89         /** The !fjoin command? **/
  90         ptr = strstr( &raw_msg[privmsg_len], ":!fjoin");
  91         if( ptr != NULL ){
  92             IRCmsg = (struct irc_msg *)malloc( sizeof(struct irc_msg) );
  93
  94             msg_to_send = (char *)calloc( 1 + strlen("JOIN \n") + strlen(config->irc_channel), sizeof(char) );
  95             sprintf( msg_to_send, "JOIN %s\n", config->irc_channel);
  96
  97             IRCmsg->type    = NORMAL_MSG;
  98             IRCmsg->msg     = msg_to_send;
  99             IRCmsg->msg_log = "Forcing join into the channel\n";
 100
 101             return IRCmsg;
 102         }/** END !rjoin command **/
 103
 104     }
 105
 106     return (struct irc_msg *)NULL;
 107 }
 108
 109 struct irc_msg *irc_parser( const char *raw_entry, struct _config *config ){
 110     struct irc_msg *IRCmsg = NULL;
 111     IRCmsg = (struct irc_msg *)malloc( sizeof(struct irc_msg) );
 112
 113     char *msg_to_send = NULL, *ptr = NULL;
 114
 115
 116     if( *raw_entry == ':' ){
 117         /* Did the `config->master' said something? */
 118         if( strncmp(&raw_entry[1], config->master, strlen(config->master)) == 0 ){
 119             /* Now we search the possition after the first ' ' in `raw_entry'
 120              * because that is the location of the message.                  */
 121             ptr = strchr( raw_entry, ' ' );
 122             ptr++;
 123
 124             return master_command( ptr, config );
 125         }
 126
 127     }else{
 128         /* Search the location after the first ' ' in `raw_entry' */
 129             ptr = strchr( raw_entry, ' ' );
 130             ptr++;
 131
 132         /***PING RESPONSE***/
 133         if( strncmp( raw_entry, "PING", 4 ) == 0 ){
 134             msg_to_send = (char *)calloc(4 + strlen(&raw_entry[5]), sizeof(char));
 135             sprintf( msg_to_send, "PONG %s", &raw_entry[5] );
 136             IRCmsg->type    = NORMAL_MSG;
 137             IRCmsg->msg     = msg_to_send;
 138             IRCmsg->msg_log = msg_to_send;
 139
 140             return IRCmsg;
 141         }
 142
 143         /***KILL RESPONSE***/
 144         char *kill_msg = NULL;
 145         kill_msg = (char *)calloc(7 + strlen(config->irc_nick), sizeof(char));
 146         sprintf( kill_msg, "KILL %s\n", config->irc_nick);
 147         if( strncmp(kill_msg, ptr, strlen(kill_msg) ) == 0 ){
 148             char *msg2log = "\n*** The bot was killed, time to re-connect!!***\n";
 149             IRCmsg->type    = EXIT_RESTART;
 150             IRCmsg->msg     = NULL;
 151             IRCmsg->msg_log = msg2log;
 152
 153             return IRCmsg;
 154         }
 155    }
 156
 157    return NULL;
 158 }