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e0781f0390291e264e6dd9c17beae1342e87f9a2
weechat/src/plugins/irc/irc-message.c
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/*
* Copyright (C) 2003-2011 Sebastien Helleu <flashcode@flashtux.org>
*
* This file is part of WeeChat, the extensible chat client.
*
* WeeChat 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; either version 3 of the License, or
* (at your option) any later version.
*
* WeeChat 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 WeeChat. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* irc-message.c: functions for IRC messages
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "../weechat-plugin.h"
#include "irc.h"
#include "irc-server.h"
#include "irc-channel.h"
/*
* irc_message_parse: parse IRC message and return pointer to host, command,
* channel, target nick and arguments (if any)
*/
void
irc_message_parse (const char *message, char **nick, char **host,
char **command, char **channel, char **arguments)
{
const char *pos, *pos2, *pos3, *pos4, *pos5;
if (nick)
*nick = NULL;
if (host)
*host = NULL;
if (command)
*command = NULL;
if (channel)
*channel = NULL;
if (arguments)
*arguments = NULL;
if (!message)
return;
/*
* we will use this message as example:
* :FlashCode!n=FlashCod@host.com PRIVMSG #channel :hello!
*/
if (message[0] == ':')
{
pos2 = strchr (message, '!');
pos = strchr (message, ' ');
if (pos2 && (!pos || pos > pos2))
{
if (nick)
*nick = weechat_strndup (message + 1, pos2 - (message + 1));
}
else if (pos)
{
if (nick)
*nick = weechat_strndup (message + 1, pos - (message + 1));
}
if (pos)
{
if (host)
*host = weechat_strndup (message + 1, pos - (message + 1));
pos++;
}
else
pos = message;
}
else
pos = message;
/* pos is pointer on PRIVMSG #channel :hello! */
if (pos && pos[0])
{
while (pos[0] == ' ')
{
pos++;
}
pos2 = strchr (pos, ' ');
if (pos2)
{
/* pos2 is pointer on #channel :hello! */
if (command)
*command = weechat_strndup (pos, pos2 - pos);
pos2++;
while (pos2[0] == ' ')
{
pos2++;
}
if (arguments)
*arguments = strdup (pos2);
if (pos2[0] != ':')
{
if (irc_channel_is_channel (pos2))
{
pos3 = strchr (pos2, ' ');
if (channel)
{
if (pos3)
*channel = weechat_strndup (pos2, pos3 - pos2);
else
*channel = strdup (pos2);
}
}
else
{
pos3 = strchr (pos2, ' ');
if (nick && !*nick)
{
if (pos3)
*nick = weechat_strndup (pos2, pos3 - pos2);
else
*nick = strdup (pos2);
}
if (pos3)
{
pos4 = pos3;
pos3++;
while (pos3[0] == ' ')
{
pos3++;
}
if (irc_channel_is_channel (pos3))
{
pos5 = strchr (pos3, ' ');
if (channel)
{
if (pos5)
*channel = weechat_strndup (pos3, pos5 - pos3);
else
*channel = strdup (pos3);
}
}
else if (channel && !*channel)
{
*channel = weechat_strndup (pos2, pos4 - pos2);
}
}
}
}
}
else
{
if (command)
*command = strdup (pos);
}
}
}
/*
* irc_message_parse_to_hashtable: parse IRC message and return hashtable with
* keys: nick, host, command, channel, arguments
* Note: hashtable has to be free()
* after use
*/
struct t_hashtable *
irc_message_parse_to_hashtable (const char *message)
{
char *nick, *host, *command, *channel, *arguments;
char empty_str[1] = { '\0' };
struct t_hashtable *hashtable;
irc_message_parse (message, &nick, &host, &command, &channel, &arguments);
hashtable = weechat_hashtable_new (8,
WEECHAT_HASHTABLE_STRING,
WEECHAT_HASHTABLE_STRING,
NULL,
NULL);
if (!hashtable)
return NULL;
weechat_hashtable_set (hashtable, "nick", (nick) ? nick : empty_str);
weechat_hashtable_set (hashtable, "host", (host) ? host : empty_str);
weechat_hashtable_set (hashtable, "command", (command) ? command : empty_str);
weechat_hashtable_set (hashtable, "channel", (channel) ? channel : empty_str);
weechat_hashtable_set (hashtable, "arguments", (arguments) ? arguments : empty_str);
if (nick)
free (nick);
if (host)
free (host);
if (command)
free (command);
if (channel)
free (channel);
if (arguments)
free (arguments);
return hashtable;
}
/*
* irc_message_get_nick_from_host: get nick from host in an IRC message
*/
const char *
irc_message_get_nick_from_host (const char *host)
{
static char nick[128];
char host2[128], *pos_space, *pos;
const char *ptr_host;
if (!host)
return NULL;
nick[0] = '\0';
if (host)
{
ptr_host = host;
pos_space = strchr (host, ' ');
if (pos_space)
{
if (pos_space - host < (int)sizeof (host2))
{
strncpy (host2, host, pos_space - host);
host2[pos_space - host] = '\0';
}
else
snprintf (host2, sizeof (host2), "%s", host);
ptr_host = host2;
}
if (ptr_host[0] == ':')
ptr_host++;
pos = strchr (ptr_host, '!');
if (pos && (pos - ptr_host < (int)sizeof (nick)))
{
strncpy (nick, ptr_host, pos - ptr_host);
nick[pos - ptr_host] = '\0';
}
else
{
snprintf (nick, sizeof (nick), "%s", ptr_host);
}
}
return nick;
}
/*
* irc_message_get_address_from_host: get address from host in an IRC message
*/
const char *
irc_message_get_address_from_host (const char *host)
{
static char address[256];
char host2[256], *pos_space, *pos;
const char *ptr_host;
address[0] = '\0';
if (host)
{
ptr_host = host;
pos_space = strchr (host, ' ');
if (pos_space)
{
if (pos_space - host < (int)sizeof (host2))
{
strncpy (host2, host, pos_space - host);
host2[pos_space - host] = '\0';
}
else
snprintf (host2, sizeof (host2), "%s", host);
ptr_host = host2;
}
if (ptr_host[0] == ':')
ptr_host++;
pos = strchr (ptr_host, '!');
if (pos)
snprintf (address, sizeof (address), "%s", pos + 1);
else
snprintf (address, sizeof (address), "%s", ptr_host);
}
return address;
}
/*
* irc_message_replace_vars: replace special IRC vars ($nick, $channel,
* $server) in a string
* Note: result has to be free() after use
*/
char *
irc_message_replace_vars (struct t_irc_server *server,
struct t_irc_channel *channel, const char *string)
{
char *var_nick, *var_channel, *var_server;
char empty_string[1] = { '\0' };
char *res, *temp;
var_nick = (server && server->nick) ? server->nick : empty_string;
var_channel = (channel) ? channel->name : empty_string;
var_server = (server) ? server->name : empty_string;
/* replace nick */
temp = weechat_string_replace (string, "$nick", var_nick);
if (!temp)
return NULL;
res = temp;
/* replace channel */
temp = weechat_string_replace (res, "$channel", var_channel);
free (res);
if (!temp)
return NULL;
res = temp;
/* replace server */
temp = weechat_string_replace (res, "$server", var_server);
free (res);
if (!temp)
return NULL;
res = temp;
/* return result */
return res;
}
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