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  /********************************************************************\
  * BitlBee -- An IRC to other IM-networks gateway                     *
  *                                                                    *
  * Copyright 2002-2005 Wilmer van der Gaast and others                *
  \********************************************************************/

/* Logging services for the bee 			*/

/*
  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 with
  the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
  if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  Suite 330, Boston, MA  02111-1307  USA
*/

#define BITLBEE_CORE
#include "bitlbee.h"
#include <syslog.h>

static log_t logoutput;

static void log_null(int level, char *logmessage);
static void log_irc(int level, char *logmessage);
static void log_syslog(int level, char pre { line-height: 125%; }
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/*
 * Handle ChatNav.
 *
 * [The ChatNav(igation) service does various things to keep chat
 *  alive.  It provides room information, room searching and creating, 
 *  as well as giving users the right ("permission") to use chat.]
 *
 */

#include <aim.h>
#include "chatnav.h"

/*
 * conn must be a chatnav connection!
 */
int aim_chatnav_reqrights(aim_session_t *sess, aim_conn_t *conn)
{
	return aim_genericreq_n_snacid(sess, conn, 0x000d, 0x0002);
}

int aim_chatnav_createroom(aim_session_t *sess, aim_conn_t *conn, const char *name, guint16 exchange)
{
	static const char ck[] = {"create"};
	static const char lang[] = {"en"};
	static const char charset[] = {"us-ascii"};
	aim_frame_t *fr;
	aim_snacid_t snacid;
	aim_tlvlist_t *tl = NULL;

	if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 1152)))
		return -ENOMEM;

	snacid = aim_cachesnac(sess, 0x000d, 0x0008, 0x0000, NULL, 0);
	aim_putsnac(&fr->data, 0x000d, 0x0008, 0x0000, snacid);

	/* exchange */
	aimbs_put16(&fr->data, exchange);

	/*
	 * This looks to be a big hack.  You'll note that this entire
	 * SNAC is just a room info structure, but the hard room name,
	 * here, is set to "create".  
	 *
	 * Either this goes on the "list of questions concerning
	 * why-the-hell-did-you-do-that", or this value is completly
	 * ignored.  Without experimental evidence, but a good knowledge of
	 * AOL style, I'm going to guess that it is the latter, and that
	 * the value of the room name in create requests is ignored.
	 */
	aimbs_put8(&fr->data, strlen(ck));
	aimbs_putraw(&fr->data, (guint8 *)ck, strlen(ck));

	/* 
	 * instance
	 * 
	 * Setting this to 0xffff apparently assigns the last instance.
	 *
	 */
	aimbs_put16(&fr->data, 0xffff);

	/* detail level */
	aimbs_put8(&fr->data, 0x01);

	aim_addtlvtochain_raw(&tl, 0x00d3, strlen(name), (guint8 *)name);
	aim_addtlvtochain_raw(&tl, 0x00d6, strlen(charset), (guint8 *)charset);
	aim_addtlvtochain_raw(&tl, 0x00d7, strlen(lang), (guint8 *)lang);

	/* tlvcount */
	aimbs_put16(&fr->data, aim_counttlvchain(&tl));
	aim_writetlvchain(&fr->data, &tl);

	aim_freetlvchain(&tl);

	aim_tx_enqueue(sess, fr);

	return 0;
}

static int parseinfo_perms(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs, aim_snac_t *snac2)
{
	aim_rxcallback_t userfunc;
	int ret = 0;
	struct aim_chat_exchangeinfo *exchanges = NULL;
	int curexchange;
	aim_tlv_t *exchangetlv;
	guint8 maxrooms = 0;
	aim_tlvlist_t *tlvlist, *innerlist;

	tlvlist = aim_readtlvchain(bs);

	/* 
	 * Type 0x0002: Maximum concurrent rooms.
	 */ 
	if (aim_gettlv(tlvlist, 0x0002, 1))
		maxrooms = aim_gettlv8(tlvlist, 0x0002, 1);

	/* 
	 * Type 0x0003: Exchange information
	 *
	 * There can be any number of these, each one
	 * representing another exchange.  
	 * 
	 */
	for (curexchange = 0; ((exchangetlv = aim_gettlv(tlvlist, 0x0003, curexchange+1))); ) {
		aim_bstream_t tbs;

		aim_bstream_init(&tbs, exchangetlv->value, exchangetlv->length);

		curexchange++;

		exchanges = g_realloc(exchanges, curexchange * sizeof(struct aim_chat_exchangeinfo));

		/* exchange number */
		exchanges[curexchange-1].number = aimbs_get16(&tbs);
		innerlist = aim_readtlvchain(&tbs);

		
ass="k">if (aim_gettlv(innerlist, 0x000a, 1)) ; /* * Type 0x000d: Unknown. */ if (aim_gettlv(innerlist, 0x000d, 1)) ; /* * Type 0x0004: Unknown */ if (aim_gettlv(innerlist, 0x0004, 1)) ; /* * Type 0x0002: Unknown */ if (aim_gettlv(innerlist, 0x0002, 1)) ; /* * Type 0x00c9: Flags * * 1 Evilable * 2 Nav Only * 4 Instancing Allowed * 8 Occupant Peek Allowed * */ if (aim_gettlv(innerlist, 0x00c9, 1)) exchanges[curexchange-1].flags = aim_gettlv16(innerlist, 0x00c9, 1); /* * Type 0x00ca: Creation Date */ if (aim_gettlv(innerlist, 0x00ca, 1)) ; /* * Type 0x00d0: Mandatory Channels? */ if (aim_gettlv(innerlist, 0x00d0, 1)) ; /* * Type 0x00d1: Maximum Message length */ if (aim_gettlv(innerlist, 0x00d1, 1)) ; /* * Type 0x00d2: Maximum Occupancy? */ if (aim_gettlv(innerlist, 0x00d2, 1)) ; /* * Type 0x00d3: Exchange Description */ if (aim_gettlv(innerlist, 0x00d3, 1)) exchanges[curexchange-1].name = aim_gettlv_str(innerlist, 0x00d3, 1); else exchanges[curexchange-1].name = NULL; /* * Type 0x00d4: Exchange Description URL */ if (aim_gettlv(innerlist, 0x00d4, 1)) ; /* * Type 0x00d5: Creation Permissions * * 0 Creation not allowed * 1 Room creation allowed * 2 Exchange creation allowed * */ if (aim_gettlv(innerlist, 0x00d5, 1)) { aim_gettlv8(innerlist, 0x00d5, 1); /* createperms */ } /* * Type 0x00d6: Character Set (First Time) */ if (aim_gettlv(innerlist, 0x00d6, 1)) exchanges[curexchange-1].charset1 = aim_gettlv_str(innerlist, 0x00d6, 1); else exchanges[curexchange-1].charset1 = NULL; /* * Type 0x00d7: Language (First Time) */ if (aim_gettlv(innerlist, 0x00d7, 1)) exchanges[curexchange-1].lang1 = aim_gettlv_str(innerlist, 0x00d7, 1); else exchanges[curexchange-1].lang1 = NULL; /* * Type 0x00d8: Character Set (Second Time) */ if (aim_gettlv(innerlist, 0x00d8, 1)) exchanges[curexchange-1].charset2 = aim_gettlv_str(innerlist, 0x00d8, 1); else exchanges[curexchange-1].charset2 = NULL; /* * Type 0x00d9: Language (Second Time) */ if (aim_gettlv(innerlist, 0x00d9, 1)) exchanges[curexchange-1].lang2 = aim_gettlv_str(innerlist, 0x00d9, 1); else exchanges[curexchange-1].lang2 = NULL; /* * Type 0x00da: Unknown */ if (aim_gettlv(innerlist, 0x00da, 1)) ; aim_freetlvchain(&innerlist); } /* * Call client. */ if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) ret = userfunc(sess, rx, snac2->type, maxrooms, curexchange, exchanges); for (curexchange--; curexchange >= 0; curexchange--) { g_free(exchanges[curexchange].name); g_free(exchanges[curexchange].charset1); g_free(exchanges[curexchange].lang1); g_free(exchanges[curexchange].charset2); g_free(exchanges[curexchange].lang2); } g_free(exchanges); aim_freetlvchain(&tlvlist); return ret; } static int parseinfo_create(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs, aim_snac_t *snac2) { aim_rxcallback_t userfunc; aim_tlvlist_t *tlvlist, *innerlist; char *ck = NULL, *fqcn = NULL, *name = NULL; guint16 exchange = 0, instance = 0, unknown = 0, flags = 0, maxmsglen = 0, maxoccupancy = 0; guint32 createtime = 0; guint8 createperms = 0, detaillevel; int cklen; aim_tlv_t *bigblock; int ret = 0; aim_bstream_t bbbs; tlvlist = aim_readtlvchain(bs); if (!(bigblock = aim_gettlv(tlvlist, 0x0004, 1))) { imcb_error(sess->aux_data, "no bigblock in top tlv in create room response"); aim_freetlvchain(&tlvlist); return 0; } aim_bstream_init(&bbbs, bigblock->value, bigblock->length); exchange = aimbs_get16(&bbbs); cklen = aimbs_get8(&bbbs); ck = aimbs_getstr(&bbbs, cklen); instance = aimbs_get16(&bbbs); detaillevel = aimbs_get8(&bbbs); if (detaillevel != 0x02) { imcb_error(sess->aux_data, "unknown detaillevel in create room response"); aim_freetlvchain(&tlvlist); g_free(ck); return 0; } unknown = aimbs_get16(&bbbs); innerlist = aim_readtlvchain(&bbbs); if (aim_gettlv(innerlist, 0x006a, 1)) fqcn = aim_gettlv_str(innerlist, 0x006a, 1); if (aim_gettlv(innerlist, 0x00c9, 1)) flags = aim_gettlv16(innerlist, 0x00c9, 1); if (aim_gettlv(innerlist, 0x00ca, 1)) createtime = aim_gettlv32(innerlist, 0x00ca, 1); if (aim_gettlv(innerlist, 0x00d1, 1)) maxmsglen = aim_gettlv16(innerlist, 0x00d1, 1); if (aim_gettlv(innerlist, 0x00d2, 1)) maxoccupancy = aim_gettlv16(innerlist, 0x00d2, 1); if (aim_gettlv(innerlist, 0x00d3, 1)) name = aim_gettlv_str(innerlist, 0x00d3, 1); if (aim_gettlv(innerlist, 0x00d5, 1)) createperms = aim_gettlv8(innerlist, 0x00d5, 1); if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) { ret = userfunc(sess, rx, snac2->type, fqcn, instance, exchange, flags, createtime, maxmsglen, maxoccupancy, createperms, unknown, name, ck); } g_free(ck); g_free(name); g_free(fqcn); aim_freetlvchain(&innerlist); aim_freetlvchain(&tlvlist); return ret; } /* * Since multiple things can trigger this callback, we must lookup the * snacid to determine the original snac subtype that was called. * * XXX This isn't really how this works. But this is: Every d/9 response * has a 16bit value at the beginning. That matches to: * Short Desc = 1 * Full Desc = 2 * Instance Info = 4 * Nav Short Desc = 8 * Nav Instance Info = 16 * And then everything is really asynchronous. There is no specific * attachment of a response to a create room request, for example. Creating * the room yields no different a response than requesting the room's info. * */ static int parseinfo(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) { aim_snac_t *snac2; int ret = 0; if (!(snac2 = aim_remsnac(sess, snac->id))) { imcb_error(sess->aux_data, "received response to unknown request!"); return 0; } if (snac2->family != 0x000d) { imcb_error(sess->aux_data, "received response that maps to corrupt request!"); return 0; } /* * We now know what the original SNAC subtype was. */ if (snac2->type == 0x0002) /* request chat rights */ ret = parseinfo_perms(sess, mod, rx, snac, bs, snac2); else if (snac2->type == 0x0003) {} /* request exchange info */ else if (snac2->type == 0x0004) {} /* request room info */ else if (snac2->type == 0x0005) {} /* request more room info */ else if (snac2->type == 0x0006) {} /* request occupant list */ else if (snac2->type == 0x0007) {} /* search for a room */ else if (snac2->type == 0x0008) /* create room */ ret = parseinfo_create(sess, mod, rx, snac, bs, snac2); else imcb_error(sess->aux_data, "unknown request subtype"); if (snac2) g_free(snac2->data); g_free(snac2); return ret; } static int snachandler(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) { if (snac->subtype == 0x0009) return parseinfo(sess, mod, rx, snac, bs); return 0; } int chatnav_modfirst(aim_session_t *sess, aim_module_t *mod) { mod->family = 0x000d; mod->version = 0x0003; mod->toolid = 0x0010; mod->toolversion = 0x0629; mod->flags = 0; strncpy(mod->name, "chatnav", sizeof(mod->name)); mod->snachandler = snachandler; return 0; }