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source: conf.c @ d63f37c

Last change on this file since d63f37c was 12f041d, checked in by dequis <dx@…>, at 2015-10-21T13:14:17Z

socks4a proxy support (like socks4 with remote DNS)

Fixes trac ticket 995 https://bugs.bitlbee.org/bitlbee/ticket/995

This is slightly pointless for the suggested use case (tor), since with
socks5 we already send a hostname instead of an IP address.

Either way, it was easy to implement, so I hope it helps.

Property mode set to 100644

File size: 11.7 KB

Rev	Line
[5ebff60]	1	/********************************************************************\
[b7d3cc34]	2	* BitlBee -- An IRC to other IM-networks gateway *
	3	* *
[c92e6801]	4	* Copyright 2002-2005 Wilmer van der Gaast and others *
[b7d3cc34]	5	\********************************************************************/
	6
	7	/* Configuration reading code */
	8
	9	/*
	10	This program is free software; you can redistribute it and/or modify
	11	it under the terms of the GNU General Public License as published by
	12	the Free Software Foundation; either version 2 of the License, or
	13	(at your option) any later version.
	14
	15	This program is distributed in the hope that it will be useful,
	16	but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	GNU General Public License for more details.
	19
	20	You should have received a copy of the GNU General Public License with
	21	the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
[6f10697]	22	if not, write to the Free Software Foundation, Inc., 51 Franklin St.,
	23	Fifth Floor, Boston, MA 02110-1301 USA
[b7d3cc34]	24	*/
	25
	26	#include "bitlbee.h"
	27
	28	#include <stdio.h>
	29	#include <string.h>
	30	#include <stdlib.h>
	31	#include "conf.h"
	32	#include "ini.h"
	33	#include "url.h"
[54879ab]	34	#include "ipc.h"
[b7d3cc34]	35
[df1694b]	36	#include "proxy.h"
[b7d3cc34]	37
[5ebff60]	38	static int conf_loadini(conf_t conf, char file);
[49f1105]	39	static void conf_free(conf_t *conf);
[b7d3cc34]	40
[5ebff60]	41	conf_t conf_load(int argc, char argv[])
[b7d3cc34]	42	{
	43	conf_t *conf;
[eeb85a8]	44	int opt, i, config_missing = 0;
[5ebff60]	45
	46	conf = g_new0(conf_t, 1);
	47
[aefaac3a]	48	conf->iface_in = NULL;
	49	conf->iface_out = NULL;
[5ebff60]	50	conf->port = g_strdup("6667");
[b7d3cc34]	51	conf->nofork = 0;
	52	conf->verbose = 0;
[5ebff60]	53	conf->primary_storage = g_strdup("xml");
	54	conf->migrate_storage = g_strsplit("text", ",", -1);
[b7d3cc34]	55	conf->runmode = RUNMODE_INETD;
	56	conf->authmode = AUTHMODE_OPEN;
[d25f6fc]	57	conf->auth_pass = NULL;
	58	conf->oper_pass = NULL;
[5ebff60]	59	conf->configdir = g_strdup(CONFIG);
	60	conf->plugindir = g_strdup(PLUGINDIR);
	61	conf->pidfile = g_strdup(PIDFILE);
	62	conf->motdfile = g_strdup(ETCDIR "/motd.txt");
[b7d3cc34]	63	conf->ping_interval = 180;
	64	conf->ping_timeout = 300;
[aaf92a9]	65	conf->user = NULL;
[a02f34f]	66	conf->ft_max_size = SIZE_MAX;
	67	conf->ft_max_kbps = G_MAXUINT;
	68	conf->ft_listen = NULL;
[90cd6c4]	69	conf->protocols = NULL;
[486ddb5]	70	conf->cafile = NULL;
[f4a5940]	71	proxytype = 0;
[5ebff60]	72
	73	i = conf_loadini(conf, global.conf_file);
	74	if (i == 0) {
	75	fprintf(stderr, "Error: Syntax error in configuration file `%s'.\n", global.conf_file);
[c2969f9]	76	conf_free(conf);
[eeb85a8]	77	return NULL;
[5ebff60]	78	} else if (i == -1) {
	79	config_missing++;
[eeb85a8]	80	/* Whine after parsing the options if there was no -c pointing
	81	at a valid configuration file. */
[b7d3cc34]	82	}
[5ebff60]	83
	84	while (argc > 0 && (opt = getopt(argc, argv, "i:p:P:nvIDFc:d:hu:V")) >= 0) {
	85	/* ^^^^ Just to make sure we skip this step from the REHASH handler. */
	86	if (opt == 'i') {
	87	conf->iface_in = g_strdup(optarg);
	88	} else if (opt == 'p') {
	89	g_free(conf->port);
	90	conf->port = g_strdup(optarg);
	91	} else if (opt == 'P') {
	92	g_free(conf->pidfile);
	93	conf->pidfile = g_strdup(optarg);
	94	} else if (opt == 'n') {
[74c119d]	95	conf->nofork = 1;
[5ebff60]	96	} else if (opt == 'v') {
[74c119d]	97	conf->verbose = 1;
[5ebff60]	98	} else if (opt == 'I') {
[74c119d]	99	conf->runmode = RUNMODE_INETD;
[5ebff60]	100	} else if (opt == 'D') {
[74c119d]	101	conf->runmode = RUNMODE_DAEMON;
[5ebff60]	102	} else if (opt == 'F') {
[74c119d]	103	conf->runmode = RUNMODE_FORKDAEMON;
[5ebff60]	104	} else if (opt == 'c') {
	105	if (strcmp(global.conf_file, optarg) != 0) {
	106	g_free(global.conf_file);
	107	global.conf_file = g_strdup(optarg);
[49f1105]	108	conf_free(conf);
[5ebff60]	109	/* Re-evaluate arguments. Don't use this option twice,
[f4a5940]	110	you'll end up in an infinite loop! Hope this trick
	111	works with all libcs BTW.. */
[74c119d]	112	optind = 1;
[5ebff60]	113	return conf_load(argc, argv);
[b7d3cc34]	114	}
[5ebff60]	115	} else if (opt == 'd') {
	116	g_free(conf->configdir);
	117	conf->configdir = g_strdup(optarg);
	118	} else if (opt == 'h') {
	119	printf("Usage: bitlbee [-D/-F [-i <interface>] [-p <port>] [-n] [-v]] [-I]\n"
	120	" [-c <file>] [-d <dir>] [-x] [-h]\n"
	121	"\n"
	122	"An IRC-to-other-chat-networks gateway\n"
	123	"\n"
	124	" -I Classic/InetD mode. (Default)\n"
	125	" -D Daemon mode. (one process serves all)\n"
	126	" -F Forking daemon. (one process per client)\n"
	127	" -u Run daemon as specified user.\n"
	128	" -P Specify PID-file (not for inetd mode)\n"
	129	" -i Specify the interface (by IP address) to listen on.\n"
	130	" (Default: 0.0.0.0 (any interface))\n"
	131	" -p Port number to listen on. (Default: 6667)\n"
	132	" -n Don't fork.\n"
	133	" -v Be verbose (only works in combination with -n)\n"
	134	" -c Load alternative configuration file\n"
	135	" -d Specify alternative user configuration directory\n"
	136	" -x Command-line interface to password encryption/hashing\n"
	137	" -h Show this help page.\n"
	138	" -V Show version info.\n");
[c2969f9]	139	conf_free(conf);
[3d1481f]	140	return NULL;
[5ebff60]	141	} else if (opt == 'V') {
	142	printf("BitlBee %s\nAPI version %06x\n",
	143	BITLBEE_VERSION, BITLBEE_VERSION_CODE);
[c2969f9]	144	conf_free(conf);
[eeb85a8]	145	return NULL;
[5ebff60]	146	} else if (opt == 'u') {
	147	g_free(conf->user);
	148	conf->user = g_strdup(optarg);
[aaf92a9]	149	}
[b7d3cc34]	150	}
[5ebff60]	151
	152	if (conf->configdir[strlen(conf->configdir) - 1] != '/') {
	153	char *s = g_new(char, strlen(conf->configdir) + 2);
	154
	155	sprintf(s, "%s/", conf->configdir);
	156	g_free(conf->configdir);
[b7d3cc34]	157	conf->configdir = s;
	158	}
[5ebff60]	159
	160	if (config_missing) {
	161	fprintf(stderr, "Warning: Unable to read configuration file `%s'.\n", global.conf_file);
	162	}
	163
	164	if (conf->cafile && access(conf->cafile, R_OK) != 0) {
[af5764e]	165	/* Let's treat this as a serious problem so people won't think
	166	they're secure when in fact they're not. */
[5ebff60]	167	fprintf(stderr, "Error: Could not read CA file %s: %s\n", conf->cafile, strerror(errno));
[c2969f9]	168	conf_free(conf);
[af5764e]	169	return NULL;
	170	}
[5ebff60]	171
[eeb85a8]	172	return conf;
[b7d3cc34]	173	}
	174
[49f1105]	175	static void conf_free(conf_t *conf)
	176	{
	177	/* Free software means users have the four essential freedoms:
	178	0. to run the program,
	179	2. to study and change the program in source code form,
	180	2. to redistribute exact copies, and
	181	3. to distribute modified versions
	182	*/
	183	g_free(conf->auth_pass);
	184	g_free(conf->cafile);
	185	g_free(conf->configdir);
	186	g_free(conf->ft_listen);
	187	g_free(conf->hostname);
	188	g_free(conf->iface_in);
	189	g_free(conf->iface_out);
	190	g_free(conf->motdfile);
	191	g_free(conf->oper_pass);
	192	g_free(conf->pidfile);
	193	g_free(conf->plugindir);
	194	g_free(conf->port);
	195	g_free(conf->primary_storage);
	196	g_free(conf->user);
	197	g_strfreev(conf->migrate_storage);
	198	g_strfreev(conf->protocols);
	199	g_free(conf);
	200
	201	}
	202
[5ebff60]	203	static int conf_loadini(conf_t conf, char file)
[b7d3cc34]	204	{
	205	ini_t *ini;
	206	int i;
[5ebff60]	207
	208	ini = ini_open(file);
	209	if (ini == NULL) {
	210	return -1;
	211	}
	212	while (ini_read(ini)) {
	213	if (g_strcasecmp(ini->section, "settings") == 0) {
	214	if (g_strcasecmp(ini->key, "runmode") == 0) {
	215	if (g_strcasecmp(ini->value, "daemon") == 0) {
[b7d3cc34]	216	conf->runmode = RUNMODE_DAEMON;
[5ebff60]	217	} else if (g_strcasecmp(ini->value, "forkdaemon") == 0) {
[d25f6fc]	218	conf->runmode = RUNMODE_FORKDAEMON;
[5ebff60]	219	} else {
[b7d3cc34]	220	conf->runmode = RUNMODE_INETD;
[5ebff60]	221	}
	222	} else if (g_strcasecmp(ini->key, "pidfile") == 0) {
	223	g_free(conf->pidfile);
	224	conf->pidfile = g_strdup(ini->value);
	225	} else if (g_strcasecmp(ini->key, "daemoninterface") == 0) {
	226	g_free(conf->iface_in);
	227	conf->iface_in = g_strdup(ini->value);
	228	} else if (g_strcasecmp(ini->key, "daemonport") == 0) {
	229	g_free(conf->port);
	230	conf->port = g_strdup(ini->value);
	231	} else if (g_strcasecmp(ini->key, "clientinterface") == 0) {
	232	g_free(conf->iface_out);
	233	conf->iface_out = g_strdup(ini->value);
	234	} else if (g_strcasecmp(ini->key, "authmode") == 0) {
	235	if (g_strcasecmp(ini->value, "registered") == 0) {
[b7d3cc34]	236	conf->authmode = AUTHMODE_REGISTERED;
[5ebff60]	237	} else if (g_strcasecmp(ini->value, "closed") == 0) {
[b7d3cc34]	238	conf->authmode = AUTHMODE_CLOSED;
[5ebff60]	239	} else {
[b7d3cc34]	240	conf->authmode = AUTHMODE_OPEN;
[5ebff60]	241	}
	242	} else if (g_strcasecmp(ini->key, "authpassword") == 0) {
	243	g_free(conf->auth_pass);
	244	conf->auth_pass = g_strdup(ini->value);
	245	} else if (g_strcasecmp(ini->key, "operpassword") == 0) {
	246	g_free(conf->oper_pass);
	247	conf->oper_pass = g_strdup(ini->value);
	248	} else if (g_strcasecmp(ini->key, "hostname") == 0) {
	249	g_free(conf->hostname);
	250	conf->hostname = g_strdup(ini->value);
	251	} else if (g_strcasecmp(ini->key, "configdir") == 0) {
	252	g_free(conf->configdir);
	253	conf->configdir = g_strdup(ini->value);
[34d16d5]	254	} else if (g_strcasecmp(ini->key, "plugindir") == 0) {
	255	g_free(conf->plugindir);
	256	conf->plugindir = g_strdup(ini->value);
[5ebff60]	257	} else if (g_strcasecmp(ini->key, "motdfile") == 0) {
	258	g_free(conf->motdfile);
	259	conf->motdfile = g_strdup(ini->value);
	260	} else if (g_strcasecmp(ini->key, "account_storage") == 0) {
	261	g_free(conf->primary_storage);
	262	conf->primary_storage = g_strdup(ini->value);
	263	} else if (g_strcasecmp(ini->key, "account_storage_migrate") == 0) {
	264	g_strfreev(conf->migrate_storage);
	265	conf->migrate_storage = g_strsplit_set(ini->value, " \t,;", -1);
	266	} else if (g_strcasecmp(ini->key, "pinginterval") == 0) {
	267	if (sscanf(ini->value, "%d", &i) != 1) {
	268	fprintf(stderr, "Invalid %s value: %s\n", ini->key, ini->value);
[eeb85a8]	269	return 0;
[b7d3cc34]	270	}
	271	conf->ping_interval = i;
[5ebff60]	272	} else if (g_strcasecmp(ini->key, "pingtimeout") == 0) {
	273	if (sscanf(ini->value, "%d", &i) != 1) {
	274	fprintf(stderr, "Invalid %s value: %s\n", ini->key, ini->value);
[eeb85a8]	275	return 0;
[b7d3cc34]	276	}
	277	conf->ping_timeout = i;
[5ebff60]	278	} else if (g_strcasecmp(ini->key, "proxy") == 0) {
	279	url_t *url = g_new0(url_t, 1);
	280
	281	if (!url_set(url, ini->value)) {
	282	fprintf(stderr, "Invalid %s value: %s\n", ini->key, ini->value);
	283	g_free(url);
[eeb85a8]	284	return 0;
[b7d3cc34]	285	}
[5ebff60]	286
	287	strncpy(proxyhost, url->host, sizeof(proxyhost));
	288	strncpy(proxyuser, url->user, sizeof(proxyuser));
	289	strncpy(proxypass, url->pass, sizeof(proxypass));
[b7d3cc34]	290	proxyport = url->port;
[5ebff60]	291	if (url->proto == PROTO_HTTP) {
[b7d3cc34]	292	proxytype = PROXY_HTTP;
[5ebff60]	293	} else if (url->proto == PROTO_SOCKS4) {
[b7d3cc34]	294	proxytype = PROXY_SOCKS4;
[5ebff60]	295	} else if (url->proto == PROTO_SOCKS5) {
[b7d3cc34]	296	proxytype = PROXY_SOCKS5;
[12f041d]	297	} else if (url->proto == PROTO_SOCKS4A) {
	298	proxytype = PROXY_SOCKS4A;
[5ebff60]	299	}
	300
	301	g_free(url);
	302	} else if (g_strcasecmp(ini->key, "user") == 0) {
	303	g_free(conf->user);
	304	conf->user = g_strdup(ini->value);
	305	} else if (g_strcasecmp(ini->key, "ft_max_size") == 0) {
[a02f34f]	306	size_t ft_max_size;
[5ebff60]	307	if (sscanf(ini->value, "%zu", &ft_max_size) != 1) {
	308	fprintf(stderr, "Invalid %s value: %s\n", ini->key, ini->value);
[a02f34f]	309	return 0;
	310	}
	311	conf->ft_max_size = ft_max_size;
[5ebff60]	312	} else if (g_strcasecmp(ini->key, "ft_max_kbps") == 0) {
	313	if (sscanf(ini->value, "%d", &i) != 1) {
	314	fprintf(stderr, "Invalid %s value: %s\n", ini->key, ini->value);
[a02f34f]	315	return 0;
	316	}
	317	conf->ft_max_kbps = i;
[5ebff60]	318	} else if (g_strcasecmp(ini->key, "ft_listen") == 0) {
	319	g_free(conf->ft_listen);
	320	conf->ft_listen = g_strdup(ini->value);
	321	} else if (g_strcasecmp(ini->key, "protocols") == 0) {
	322	g_strfreev(conf->protocols);
	323	conf->protocols = g_strsplit_set(ini->value, " \t,;", -1);
	324	} else if (g_strcasecmp(ini->key, "cafile") == 0) {
	325	g_free(conf->cafile);
	326	conf->cafile = g_strdup(ini->value);
	327	} else {
	328	fprintf(stderr, "Error: Unknown setting `%s` in configuration file (line %d).\n",
	329	ini->key, ini->line);
[eeb85a8]	330	return 0;
[b7d3cc34]	331	/* For now just ignore unknown keys... */
	332	}
[5ebff60]	333	} else if (g_strcasecmp(ini->section, "defaults") != 0) {
	334	fprintf(stderr, "Error: Unknown section [%s] in configuration file (line %d). "
	335	"BitlBee configuration must be put in a [settings] section!\n", ini->section,
	336	ini->line);
[eeb85a8]	337	return 0;
[b7d3cc34]	338	}
	339	}
[5ebff60]	340	ini_close(ini);
	341
[eeb85a8]	342	return 1;
[b7d3cc34]	343	}
	344
[5ebff60]	345	void conf_loaddefaults(irc_t *irc)
[b7d3cc34]	346	{
	347	ini_t *ini;
[5ebff60]	348
	349	ini = ini_open(global.conf_file);
	350	if (ini == NULL) {
	351	return;
	352	}
	353	while (ini_read(ini)) {
	354	if (g_strcasecmp(ini->section, "defaults") == 0) {
	355	set_t *s = set_find(&irc->b->set, ini->key);
	356
	357	if (s) {
	358	if (s->def) {
	359	g_free(s->def);
	360	}
	361	s->def = g_strdup(ini->value);
[b7d3cc34]	362	}
	363	}
	364	}
[5ebff60]	365	ini_close(ini);
[b7d3cc34]	366	}

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