Added bot plugin, it also has almost-functional botnet.

Changed configure.in's functionality so that you could tell what modules you
want to build in main irssi binary and it will create automatically the .c
files that need to call the module_init()/deinit() functions.

Fixed several minor things..


git-svn-id: http://svn.irssi.org/repos/irssi/trunk@230 dbcabf3a-b0e7-0310-adc4-f8d773084564

src/irc/bot/bot-commands.c

@@ -0,0 +1,165 @@
+/*
+ bot-commands.c : IRC bot plugin for irssi
+
+    Copyright (C) 1999-2000 Timo Sirainen
+
+    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; either version 2 of the License, or
+    (at your option) any later version.
+
+    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include "module.h"
+#include "signals.h"
+#include "commands.h"
+
+#include "irc.h"
+#include "irc-server.h"
+#include "channels.h"
+#include "nicklist.h"
+#include "masks.h"
+
+#include "bot-users.h"
+
+static void event_privmsg(const char *data, IRC_SERVER_REC *server,
+			  const char *nick, const char *address)
+{
+	char *params, *target, *msg, *args, *str;
+
+	g_return_if_fail(data != NULL);
+
+	params = event_get_params(data, 2 | PARAM_FLAG_GETREST, &target, &msg);
+	if (nick == NULL) nick = server->real_address;
+
+	if (*msg == 1 || ischannel(*target)) {
+		g_free(params);
+		return;
+	}
+
+	/* private message for us */
+	str = g_strconcat("bot command ", msg, NULL);
+	args = strchr(str+12, ' ');
+	if (args != NULL) *args++ = '\0'; else args = "";
+
+	g_strdown(str);
+	if (signal_emit(str, 4, args, server, nick, address)) {
+		/* msg was a command - the msg event. */
+		signal_stop();
+	}
+	g_free(str);
+	g_free(params);
+}
+
+static void botcmd_op(const char *data, IRC_SERVER_REC *server,
+		      const char *nick, const char *address)
+{
+	CHANNEL_REC *channel;
+	USER_REC *user;
+	USER_CHAN_REC *userchan;
+	GSList *tmp;
+
+	g_return_if_fail(data != NULL);
+
+	if (*data == '\0') {
+		/* no password given? .. */
+		return;
+	}
+
+	user = botuser_find(nick, address);
+	if (user == NULL || (user->not_flags & USER_OP) ||
+	    !botuser_verify_password(user, data)) {
+		/* not found, can't op with this mask or failed password */
+		return;
+	}
+
+	/* find the channels where to op.. */
+	for (tmp = server->channels; tmp != NULL; tmp = tmp->next) {
+		channel = tmp->data;
+
+		userchan = g_hash_table_lookup(user->channels, channel->name);
+		if ((user->flags & USER_OP) || (userchan->flags & USER_OP))
+			signal_emit("command op", 3, nick, server, channel);
+	}
+}
+
+static void botcmd_ident(const char *data, IRC_SERVER_REC *server,
+			 const char *nick, const char *address)
+{
+	USER_REC *user;
+	char *mask;
+
+	g_return_if_fail(data != NULL);
+
+	user = botuser_find(nick, address);
+	if (user != NULL) {
+		/* Already know this host */
+		return;
+	}
+
+	user = botuser_find(nick, NULL);
+	if (user == NULL || !botuser_verify_password(user, data)) {
+		/* failed password */
+		return;
+	}
+
+	/* add the new mask */
+	mask = irc_get_mask(nick, address, IRC_MASK_USER | IRC_MASK_DOMAIN);
+	botuser_add_mask(user, mask);
+
+	irc_send_cmdv(server, "NOTICE %s :Added new mask %s", nick, mask);
+	g_free(mask);
+}
+
+static void botcmd_pass(const char *data, IRC_SERVER_REC *server,
+			const char *nick, const char *address)
+{
+	USER_REC *user;
+	char *params, *pass, *newpass;
+
+	g_return_if_fail(data != NULL);
+
+	params = event_get_params(data, 2, &pass, &newpass);
+
+	user = botuser_find(nick, address);
+	if (user == NULL || *pass == '\0') {
+		g_free(params);
+		return;
+	}
+
+	if (user->password != NULL &&
+	    (*newpass == '\0' || !botuser_verify_password(user, pass))) {
+		g_free(params);
+		return;
+	}
+
+	/* change the password */
+	botuser_set_password(user, user->password == NULL ? pass : newpass);
+	irc_send_cmdv(server, "NOTICE %s :Password changed", nick);
+
+	g_free(params);
+}
+
+void bot_commands_init(void)
+{
+	signal_add("event privmsg", (SIGNAL_FUNC) event_privmsg);
+	signal_add_last("bot command op", (SIGNAL_FUNC) botcmd_op);
+	signal_add_last("bot command ident", (SIGNAL_FUNC) botcmd_ident);
+	signal_add_last("bot command pass", (SIGNAL_FUNC) botcmd_pass);
+}
+
+void bot_commands_deinit(void)
+{
+	signal_remove("event privmsg", (SIGNAL_FUNC) event_privmsg);
+	signal_remove("bot command op", (SIGNAL_FUNC) botcmd_op);
+	signal_remove("bot command ident", (SIGNAL_FUNC) botcmd_ident);
+	signal_remove("bot command pass", (SIGNAL_FUNC) botcmd_pass);
+}