summaryrefslogtreecommitdiff
path: root/src/map/irc-bot.c
blob: d3782bd9b5c578716312137767cb0a34ced1ec40 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
// Copyright (c) Hercules Dev Team, licensed under GNU GPL.
// See the LICENSE file
// Base Author: shennetsind @ http://hercules.ws

#include "../common/cbasetypes.h"
#include "../common/malloc.h"
#include "../common/strlib.h"
#include "../common/showmsg.h"
#include "../common/socket.h"
#include "../common/timer.h"
#include "../common/random.h"

#include "map.h"
#include "pc.h"
#include "clif.h"
#include "irc-bot.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

struct irc_bot_interface irc_bot_s;

char send_string[200];

int irc_connect_timer(int tid, unsigned int tick, int id, intptr_t data) {
	struct hSockOpt opt;
	if( ircbot->isOn || ++ircbot->fails >= 3 )
		return 0;
	
	opt.silent = 1;
	opt.setTimeo = 0;
	
	ircbot->last_try = iTimer->gettick();

	if( ( ircbot->fd = make_connection(ircbot->ip,hChSys.irc_server_port,&opt) ) > 0 ){
		session[ircbot->fd]->func_parse = ircbot->parse;
		session[ircbot->fd]->flag.server = 1;
		iTimer->add_timer(iTimer->gettick() + 3000, ircbot->identify_timer, 0, 0);
		ircbot->isOn = true;
	}
	return 0;
}

int irc_identify_timer(int tid, unsigned int tick, int id, intptr_t data) {
	if( !ircbot->isOn )
		return 0;
	
	sprintf(send_string, "USER HerculesWS%d 8 * : Hercules IRC Bridge",rand()%777);
	ircbot->send(send_string);
	sprintf(send_string, "NICK %s", hChSys.irc_nick);
	ircbot->send(send_string);

	iTimer->add_timer(iTimer->gettick() + 3000, ircbot->join_timer, 0, 0);
	
	return 0;
}

int irc_join_timer(int tid, unsigned int tick, int id, intptr_t data) {
	if( !ircbot->isOn )
		return 0;
	
	if( hChSys.irc_nick_pw[0] != '\0' ) {
		sprintf(send_string, "PRIVMSG NICKSERV : IDENTIFY %s", hChSys.irc_nick_pw);
		ircbot->send(send_string);
	}
	
	sprintf(send_string, "JOIN %s", hChSys.irc_channel);
	ircbot->send(send_string);
	ircbot->isIn = true;

	return 0;
}

struct irc_func* irc_func_search(char* function_name) {
	int i;
	for(i = 0; i < ircbot->funcs.size; i++) {
		if( strcmpi(ircbot->funcs.list[i]->name, function_name) == 0 ) {
			return ircbot->funcs.list[i];
		}
	}
	return NULL;
}

int irc_parse(int fd) {
	char *parse_string = NULL, *str_safe = NULL;

	if (session[fd]->flag.eof) {
		do_close(fd);
		ircbot->fd = 0;
		ircbot->isOn = false;
		ircbot->isIn = false;
		ircbot->fails = 0;
		ircbot->ip = host2ip(hChSys.irc_server);
		iTimer->add_timer(iTimer->gettick() + 120000, ircbot->connect_timer, 0, 0);
      	return 0;
	}
	
	if( !RFIFOREST(fd) )
		return 0;
	
	parse_string = (char*)RFIFOP(fd,0);
	parse_string[ RFIFOREST(fd) - 1 ] = '\0';
	
	parse_string = strtok_r(parse_string,"\r\n",&str_safe);
	
	while (parse_string != NULL) {
		ircbot->parse_sub(fd,parse_string);
		parse_string = strtok_r(NULL,"\r\n",&str_safe);
	}
	
	RFIFOSKIP(fd, RFIFOREST(fd));
	RFIFOFLUSH(fd);
	return 0;
}

void irc_parse_source(char *source, char *nick, char *ident, char *host) {
	int i, len = strlen(source), pos = 0;
	unsigned char stage = 0;
	
	for(i = 0; i < len; i++) {
		if( stage == 0 && source[i] == '!' ) {
			safestrncpy(nick, &source[0], min(i + 1, IRC_NICK_LENGTH));
			pos = i+1;
			stage = 1;
		} else if( stage == 1 && source[i] == '@' ) {
			safestrncpy(ident, &source[pos], min(i - pos + 1, IRC_IDENT_LENGTH));
			safestrncpy(host, &source[i+1], min(len - i, IRC_HOST_LENGTH));
			break;
		}
	}
}
void irc_parse_sub(int fd, char *str) {
	char source[180], command[60], target[60], message[200];
	struct irc_func *func;
	
	source[0] = command[0] = target[0] = message[0] = '\0';
	
	if( str[0] == ':' )
		str++;
	
	sscanf(str, "%179s %59s %59s :%199[^\r\n]", source, command, target, message);
		
	if( command[0] == '\0' )
		return;
		
	if( !(func = ircbot->func_search(command)) && !(func = ircbot->func_search(source)) ) {
		//ShowWarning("Unknown command received %s from %s\n",command,source);
		return;
	}
	func->func(fd,command,source,target,message);
	
}

void irc_send(char *str) {
	int len = strlen(str) + 2;
	WFIFOHEAD(ircbot->fd, len);
	snprintf((char*)WFIFOP(ircbot->fd,0),200, "%s\r\n", str);
	WFIFOSET(ircbot->fd, len);
}

void irc_pong(int fd, char *cmd, char *source, char *target, char *msg) {
	sprintf(send_string, "PONG %s", cmd);
	ircbot->send(send_string);
}

void irc_join(int fd, char *cmd, char *source, char *target, char *msg) {
	if( ircbot->isIn )
		return;
	sprintf(send_string, "JOIN %s", hChSys.irc_channel);
	ircbot->send(send_string);
	ircbot->isIn = true;
}

void irc_privmsg(int fd, char *cmd, char *source, char *target, char *msg) {
	if( strcmpi(target,hChSys.irc_nick) == 0 ) {
		if( msg[0] == ':' ) msg++;
		if( strcmpi(msg,"VERSION") == 0 ) {
			char source_nick[IRC_NICK_LENGTH], source_ident[IRC_IDENT_LENGTH], source_host[IRC_HOST_LENGTH];
			
			source_nick[0] = source_ident[0] = source_host[0] = '\0';
			
			if( source[0] != '\0' )
				ircbot->parse_source(source,source_nick,source_ident,source_host);

			sprintf(send_string, "NOTICE %s :Hercules.ws IRC Bridge",source_nick);
			ircbot->send(send_string);
			return;
		}
	} else if( strcmpi(target,hChSys.irc_channel) == 0 ) {
		char source_nick[IRC_NICK_LENGTH], source_ident[IRC_IDENT_LENGTH], source_host[IRC_HOST_LENGTH];

		source_nick[0] = source_ident[0] = source_host[0] = '\0';

		if( source[0] != '\0' )
			ircbot->parse_source(source,source_nick,source_ident,source_host);
				
		if( ircbot->channel ) {
			snprintf(send_string, 150, "[ #%s ] IRC.%s : %s",ircbot->channel->name,source_nick,msg);
			clif->chsys_msg2(ircbot->channel,send_string);
		}
	}
}

void irc_relay (char *name, char *msg) {
	if( !ircbot->isIn )
		return;
	sprintf(send_string,"PRIVMSG %s :[ %s ] : %s",hChSys.irc_channel,name,msg);
	ircbot->send(send_string);
}
void irc_bot_init(void) {
	const struct irc_func irc_func_base[] = {
		{ "PING" , ircbot->pong },
		{ "PRIVMSG", ircbot->privmsg },
	};
	struct irc_func* function;
	int i;

	if( !hChSys.irc )
		return;

	if (!(ircbot->ip = host2ip(hChSys.irc_server))) {
		ShowError("Unable to resolve '%s' (irc server), disabling irc channel...\n", hChSys.irc_server);
		hChSys.irc = false;
		return;
	}
	
	ircbot->funcs.size = ARRAYLENGTH(irc_func_base);

	CREATE(ircbot->funcs.list,struct irc_func*,ircbot->funcs.size);
	
	for( i = 0; i < ircbot->funcs.size; i++ ) {
		
		CREATE(function, struct irc_func, 1);
		
		safestrncpy(function->name, irc_func_base[i].name, sizeof(function->name));
		function->func = irc_func_base[i].func;
		
		ircbot->funcs.list[i] = function;
	}
	
	ircbot->fails = 0;
	ircbot->fd = 0;
	ircbot->isIn = false;
	ircbot->isOn = false;
	
	iTimer->add_timer_func_list(ircbot->connect_timer, "irc_connect_timer");
	iTimer->add_timer(iTimer->gettick() + 7000, ircbot->connect_timer, 0, 0);
}

void irc_bot_final(void) {
	int i;
	
	if( !hChSys.irc )
		return;
	if( ircbot->isOn ) {
		ircbot->send("QUIT :Hercules is shutting down");
		do_close(ircbot->fd);
	}
	
	for( i = 0; i < ircbot->funcs.size; i++ ) {
		aFree(ircbot->funcs.list[i]);
	}
	aFree(ircbot->funcs.list);
}

void ircbot_defaults(void) {
	ircbot = &irc_bot_s;
	
	ircbot->channel = NULL;
	
	ircbot->init = irc_bot_init;
	ircbot->final = irc_bot_final;
	
	ircbot->parse = irc_parse;
	ircbot->parse_sub = irc_parse_sub;
	ircbot->parse_source = irc_parse_source;
	
	ircbot->func_search = irc_func_search;
	
	ircbot->connect_timer = irc_connect_timer;
	ircbot->identify_timer = irc_identify_timer;
	ircbot->join_timer = irc_join_timer;
	
	ircbot->send = irc_send;
	ircbot->relay = irc_relay;
	
	ircbot->pong = irc_pong;
	ircbot->join = irc_join;
	ircbot->privmsg = irc_privmsg;
}