libpurple/protocols/jabber/jabber.c

/*
 * purple - Jabber Protocol Plugin
 *
 * Copyright (C) 2003, Nathan Walp <faceprint@faceprint.com>
 *
 * 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 "internal.h"

#include "account.h"
#include "accountopt.h"
#include "blist.h"
#include "cmds.h"
#include "connection.h"
#include "conversation.h"
#include "debug.h"
#include "dnssrv.h"
#include "message.h"
#include "notify.h"
#include "pluginpref.h"
#include "proxy.h"
#include "prpl.h"
#include "request.h"
#include "server.h"
#include "util.h"
#include "version.h"
#include "xmlnode.h"

#include "auth.h"
#include "buddy.h"
#include "chat.h"
#include "disco.h"
#include "google.h"
#include "iq.h"
#include "jutil.h"
#include "message.h"
#include "parser.h"
#include "presence.h"
#include "jabber.h"
#include "roster.h"
#include "si.h"
#include "xdata.h"

#define JABBER_CONNECT_STEPS (js->gsc ? 8 : 5)

static PurplePlugin *my_protocol = NULL;

static void jabber_stream_init(JabberStream *js)
{
	char *open_stream;

	open_stream = g_strdup_printf("<stream:stream to='%s' "
				          "xmlns='jabber:client' "
						  "xmlns:stream='http://etherx.jabber.org/streams' "
						  "version='1.0'>",
						  js->user->domain);
	/* setup the parser fresh for each stream */
	jabber_parser_setup(js);
	jabber_send_raw(js, open_stream, -1);
	js->reinit = FALSE;
	g_free(open_stream);
}

static void
jabber_session_initialized_cb(JabberStream *js, xmlnode *packet, gpointer data)
{
	const char *type = xmlnode_get_attrib(packet, "type");
	if(type && !strcmp(type, "result")) {
		jabber_stream_set_state(js, JABBER_STREAM_CONNECTED);
	} else {
		purple_connection_error(js->gc, _("Error initializing session"));
	}
}

static void jabber_session_init(JabberStream *js)
{
	JabberIq *iq = jabber_iq_new(js, JABBER_IQ_SET);
	xmlnode *session;

	jabber_iq_set_callback(iq, jabber_session_initialized_cb, NULL);

	session = xmlnode_new_child(iq->node, "session");
	xmlnode_set_namespace(session, "urn:ietf:params:xml:ns:xmpp-session");

	jabber_iq_send(iq);
}

static void jabber_bind_result_cb(JabberStream *js, xmlnode *packet,
		gpointer data)
{
	const char *type = xmlnode_get_attrib(packet, "type");
	xmlnode *bind;

	if(type && !strcmp(type, "result") &&
			(bind = xmlnode_get_child_with_namespace(packet, "bind", "urn:ietf:params:xml:ns:xmpp-bind"))) {
		xmlnode *jid;
		char *full_jid;
		if((jid = xmlnode_get_child(bind, "jid")) && (full_jid = xmlnode_get_data(jid))) {
			JabberBuddy *my_jb = NULL;
			jabber_id_free(js->user);
			if(!(js->user = jabber_id_new(full_jid))) {
				purple_connection_error(js->gc, _("Invalid response from server."));
			}
			if((my_jb = jabber_buddy_find(js, full_jid, TRUE)))
				my_jb->subscription |= JABBER_SUB_BOTH;
			g_free(full_jid);
		}
	} else {
		char *msg = jabber_parse_error(js, packet);
		purple_connection_error(js->gc, msg);
		g_free(msg);
	}

	jabber_session_init(js);
}

static void jabber_stream_features_parse(JabberStream *js, xmlnode *packet)
{
	if(xmlnode_get_child(packet, "starttls")) {
		if(jabber_process_starttls(js, packet))
			return;
	}

	if(js->registration) {
		jabber_register_start(js);
	} else if(xmlnode_get_child(packet, "mechanisms")) {
		jabber_auth_start(js, packet);
	} else if(xmlnode_get_child(packet, "bind")) {
		xmlnode *bind, *resource;
		JabberIq *iq = jabber_iq_new(js, JABBER_IQ_SET);
		bind = xmlnode_new_child(iq->node, "bind");
		xmlnode_set_namespace(bind, "urn:ietf:params:xml:ns:xmpp-bind");
		resource = xmlnode_new_child(bind, "resource");
		xmlnode_insert_data(resource, js->user->resource, -1);

		jabber_iq_set_callback(iq, jabber_bind_result_cb, NULL);

		jabber_iq_send(iq);
	} else /* if(xmlnode_get_child_with_namespace(packet, "auth")) */ {
		/* If we get an empty stream:features packet, or we explicitly get
		 * an auth feature with namespace http://jabber.org/features/iq-auth
		 * we should revert back to iq:auth authentication, even though we're
		 * connecting to an XMPP server.  */
		js->auth_type = JABBER_AUTH_IQ_AUTH;
		jabber_stream_set_state(js, JABBER_STREAM_AUTHENTICATING);
	}
}

static void jabber_stream_handle_error(JabberStream *js, xmlnode *packet)
{
	char *msg = jabber_parse_error(js, packet);

	purple_connection_error(js->gc, msg);
	g_free(msg);
}

static void tls_init(JabberStream *js);

void jabber_process_packet(JabberStream *js, xmlnode *packet)
{
	const char *xmlns;

	purple_signal_emit(my_protocol, "jabber-receiving-xmlnode", js->gc, &packet);

	/* if the signal leaves us with a null packet, we're done */
	if(NULL == packet)
		return;

	xmlns = xmlnode_get_namespace(packet);

	if(!strcmp(packet->name, "iq")) {
		jabber_iq_parse(js, packet);
	} else if(!strcmp(packet->name, "presence")) {
		jabber_presence_parse(js, packet);
	} else if(!strcmp(packet->name, "message")) {
		jabber_message_parse(js, packet);
	} else if(!strcmp(packet->name, "stream:features")) {
		jabber_stream_features_parse(js, packet);
	} else if (!strcmp(packet->name, "features") &&
		   !strcmp(xmlns, "http://etherx.jabber.org/streams")) {
		jabber_stream_features_parse(js, packet);
	} else if(!strcmp(packet->name, "stream:error") ||
			 (!strcmp(packet->name, "error") &&
				!strcmp(xmlns, "http://etherx.jabber.org/streams")))
	{
		jabber_stream_handle_error(js, packet);
	} else if(!strcmp(packet->name, "challenge")) {
		if(js->state == JABBER_STREAM_AUTHENTICATING)
			jabber_auth_handle_challenge(js, packet);
	} else if(!strcmp(packet->name, "success")) {
		if(js->state == JABBER_STREAM_AUTHENTICATING)
			jabber_auth_handle_success(js, packet);
	} else if(!strcmp(packet->name, "failure")) {
		if(js->state == JABBER_STREAM_AUTHENTICATING)
			jabber_auth_handle_failure(js, packet);
	} else if(!strcmp(packet->name, "proceed")) {
		if(js->state == JABBER_STREAM_AUTHENTICATING && !js->gsc)
			tls_init(js);
	} else {
		purple_debug(PURPLE_DEBUG_WARNING, "jabber", "Unknown packet: %s\n",
				packet->name);
	}
}

static int jabber_do_send(JabberStream *js, const char *data, int len)
{
	int ret;

	if (js->gsc)
		ret = purple_ssl_write(js->gsc, data, len);
	else
		ret = write(js->fd, data, len);

	return ret;
}

static void jabber_send_cb(gpointer data, gint source, PurpleInputCondition cond)
{
	JabberStream *js = data;
	int ret, writelen;
	writelen = purple_circ_buffer_get_max_read(js->write_buffer);

	if (writelen == 0) {
		purple_input_remove(js->writeh);
		js->writeh = 0;
		return;
	}

	ret = jabber_do_send(js, js->write_buffer->outptr, writelen);

	if (ret < 0 && errno == EAGAIN)
		return;
	else if (ret <= 0) {
		purple_connection_error(js->gc, _("Write error"));
		return;
	}

	purple_circ_buffer_mark_read(js->write_buffer, ret);
}

void jabber_send_raw(JabberStream *js, const char *data, int len)
{
	int ret;

	/* because printing a tab to debug every minute gets old */
	if(strcmp(data, "\t"))
		purple_debug(PURPLE_DEBUG_MISC, "jabber", "Sending%s: %s\n",
				js->gsc ? " (ssl)" : "", data);

	/* If we've got a security layer, we need to encode the data,
	 * splitting it on the maximum buffer length negotiated */
	
	purple_signal_emit(my_protocol, "jabber-sending-text", js->gc, &data);
	if (data == NULL)
		return;
	
#ifdef HAVE_CYRUS_SASL
	if (js->sasl_maxbuf>0) {
		int pos;

		if (!js->gsc && js->fd<0)
			return;
		pos = 0;
		if (len == -1)
			len = strlen(data);
		while (pos < len) {
			int towrite;
			const char *out;
			unsigned olen;

			if ((len - pos) < js->sasl_maxbuf)
				towrite = len - pos;
			else
				towrite = js->sasl_maxbuf;

			sasl_encode(js->sasl, &data[pos], towrite, &out, &olen);
			pos += towrite;

			if (js->writeh == 0)
				ret = jabber_do_send(js, out, olen);
			else {
				ret = -1;
				errno = EAGAIN;
			}

			if (ret < 0 && errno != EAGAIN)
				purple_connection_error(js->gc, _("Write error"));
			else if (ret < olen) {
				if (ret < 0)
					ret = 0;
				if (js->writeh == 0)
					js->writeh = purple_input_add(
						js->gsc ? js->gsc->fd : js->fd,
						PURPLE_INPUT_WRITE,
						jabber_send_cb, js);
				purple_circ_buffer_append(js->write_buffer,
					out + ret, olen - ret);
			}
		}
		return;
	}
#endif

	if (len == -1)
		len = strlen(data);

	if (js->writeh == 0)
		ret = jabber_do_send(js, data, len);
	else {
		ret = -1;
		errno = EAGAIN;
	}

	if (ret < 0 && errno != EAGAIN)
		purple_connection_error(js->gc, _("Write error"));
	else if (ret < len) {
		if (ret < 0)
			ret = 0;
		if (js->writeh == 0)
			js->writeh = purple_input_add(
				js->gsc ? js->gsc->fd : js->fd,
				PURPLE_INPUT_WRITE, jabber_send_cb, js);
		purple_circ_buffer_append(js->write_buffer,
			data + ret, len - ret);
	}
	return;
}

int jabber_prpl_send_raw(PurpleConnection *gc, const char *buf, int len)
{
	JabberStream *js = (JabberStream*)gc->proto_data;
	jabber_send_raw(js, buf, len);
	return len;
}

void jabber_send(JabberStream *js, xmlnode *packet)
{
	char *txt;
	int len;

	purple_signal_emit(my_protocol, "jabber-sending-xmlnode", js->gc, &packet);

	/* if we get NULL back, we're done processing */
	if(NULL == packet)
		return;

	txt = xmlnode_to_str(packet, &len);
	jabber_send_raw(js, txt, len);
	g_free(txt);
}

void jabber_keepalive(PurpleConnection *gc)
{
	jabber_send_raw(gc->proto_data, "\t", -1);
}

static void
jabber_recv_cb_ssl(gpointer data, PurpleSslConnection *gsc,
		PurpleInputCondition cond)
{
	PurpleConnection *gc = data;
	JabberStream *js = gc->proto_data;
	int len;
	static char buf[4096];

	/* TODO: It should be possible to make this check unnecessary */
	if(!PURPLE_CONNECTION_IS_VALID(gc)) {
		purple_ssl_close(gsc);
		return;
	}

	while((len = purple_ssl_read(gsc, buf, sizeof(buf) - 1)) > 0) {
		buf[len] = '\0';
		purple_debug(PURPLE_DEBUG_INFO, "jabber", "Recv (ssl)(%d): %s\n", len, buf);
		jabber_parser_process(js, buf, len);
		if(js->reinit)
			jabber_stream_init(js);
	}

	if(errno == EAGAIN)
		return;
	else
		purple_connection_error(gc, _("Read Error"));
}

static void
jabber_recv_cb(gpointer data, gint source, PurpleInputCondition condition)
{
	PurpleConnection *gc = data;
	JabberStream *js = gc->proto_data;
	int len;
	static char buf[4096];

	if(!PURPLE_CONNECTION_IS_VALID(gc))
		return;

	if((len = read(js->fd, buf, sizeof(buf) - 1)) > 0) {
#ifdef HAVE_CYRUS_SASL
		if (js->sasl_maxbuf>0) {
			const char *out;
			unsigned int olen;
			sasl_decode(js->sasl, buf, len, &out, &olen);
			if (olen>0) {
				purple_debug(PURPLE_DEBUG_INFO, "jabber", "RecvSASL (%u): %s\n", olen, out);
				jabber_parser_process(js,out,olen);
				if(js->reinit)
					jabber_stream_init(js);
			}
			return;
		}
#endif
		buf[len] = '\0';
		purple_debug(PURPLE_DEBUG_INFO, "jabber", "Recv (%d): %s\n", len, buf);
		jabber_parser_process(js, buf, len);
		if(js->reinit)
			jabber_stream_init(js);
	} else if(errno == EAGAIN) {
		return;
	} else {
		purple_connection_error(gc, _("Read Error"));
	}
}

static void
jabber_login_callback_ssl(gpointer data, PurpleSslConnection *gsc,
		PurpleInputCondition cond)
{
	PurpleConnection *gc = data;
	JabberStream *js;

	/* TODO: It should be possible to make this check unnecessary */
	if(!PURPLE_CONNECTION_IS_VALID(gc)) {
		purple_ssl_close(gsc);
		return;
	}	

	js = gc->proto_data;

	if(js->state == JABBER_STREAM_CONNECTING)
		jabber_send_raw(js, "<?xml version='1.0' ?>", -1);
	jabber_stream_set_state(js, JABBER_STREAM_INITIALIZING);
	purple_ssl_input_add(gsc, jabber_recv_cb_ssl, gc);
}


static void
jabber_login_callback(gpointer data, gint source, const gchar *error)
{
	PurpleConnection *gc = data;
	JabberStream *js = gc->proto_data;

	if (source < 0) {
		purple_connection_error(gc, _("Couldn't connect to host"));
		return;
	}

	js->fd = source;

	if(js->state == JABBER_STREAM_CONNECTING)
		jabber_send_raw(js, "<?xml version='1.0' ?>", -1);

	jabber_stream_set_state(js, JABBER_STREAM_INITIALIZING);
	gc->inpa = purple_input_add(js->fd, PURPLE_INPUT_READ, jabber_recv_cb, gc);
}

static void
jabber_ssl_connect_failure(PurpleSslConnection *gsc, PurpleSslErrorType error,
		gpointer data)
{
	PurpleConnection *gc = data;
	JabberStream *js;

	/* If the connection is already disconnected, we don't need to do anything else */
	if(!PURPLE_CONNECTION_IS_VALID(gc))
		return;

	js = gc->proto_data;
	js->gsc = NULL;

	switch(error) {
		case PURPLE_SSL_CONNECT_FAILED:
			purple_connection_error(gc, _("Connection Failed"));
			break;
		case PURPLE_SSL_HANDSHAKE_FAILED:
			purple_connection_error(gc, _("SSL Handshake Failed"));
			break;
	}
}

static void tls_init(JabberStream *js)
{
	purple_input_remove(js->gc->inpa);
	js->gc->inpa = 0;
	js->gsc = purple_ssl_connect_fd(js->gc->account, js->fd,
			jabber_login_callback_ssl, jabber_ssl_connect_failure, js->gc);
}

static void jabber_login_connect(JabberStream *js, const char *fqdn, const char *host, int port)
{
#ifdef HAVE_CYRUS_SASL
	js->serverFQDN = g_strdup(fqdn);
#endif

	if (purple_proxy_connect(js->gc, js->gc->account, host,
			port, jabber_login_callback, js->gc) == NULL)
		purple_connection_error(js->gc, _("Unable to create socket"));
}

static void srv_resolved_cb(PurpleSrvResponse *resp, int results, gpointer data)
{
	JabberStream *js;

	js = data;
	js->srv_query_data = NULL;

	if(results) {
		jabber_login_connect(js, resp->hostname, resp->hostname, resp->port);
		g_free(resp);
	} else {
		jabber_login_connect(js, js->user->domain, js->user->domain,
			purple_account_get_int(js->gc->account, "port", 5222));
	}
}

void
jabber_login(PurpleAccount *account)
{
	PurpleConnection *gc = purple_account_get_connection(account);
	const char *connect_server = purple_account_get_string(account,
			"connect_server", "");
	JabberStream *js;
	JabberBuddy *my_jb = NULL;

	gc->flags |= PURPLE_CONNECTION_HTML;
	js = gc->proto_data = g_new0(JabberStream, 1);
	js->gc = gc;
	js->fd = -1;
	js->iq_callbacks = g_hash_table_new_full(g_str_hash, g_str_equal,
			g_free, g_free);
	js->disco_callbacks = g_hash_table_new_full(g_str_hash, g_str_equal,
			g_free, g_free);
	js->buddies = g_hash_table_new_full(g_str_hash, g_str_equal,
			g_free, (GDestroyNotify)jabber_buddy_free);
	js->chats = g_hash_table_new_full(g_str_hash, g_str_equal,
			g_free, (GDestroyNotify)jabber_chat_free);
	js->user = jabber_id_new(purple_account_get_username(account));
	js->next_id = g_random_int();
	js->write_buffer = purple_circ_buffer_new(512);

	if(!js->user) {
		purple_connection_error(gc, _("Invalid XMPP ID"));
		return;
	}
	
	if (!js->user->domain || *(js->user->domain) == '\0') {
		purple_connection_error(gc, _("Invalid XMPP ID. Domain must be set."));
		return;
	}
	
	if(!js->user->resource) {
		char *me;
		js->user->resource = g_strdup("Home");
		if(!js->user->node) {
			js->user->node = js->user->domain;
			js->user->domain = g_strdup("jabber.org");
		}
		me = g_strdup_printf("%s@%s/%s", js->user->node, js->user->domain,
				js->user->resource);
		purple_account_set_username(account, me);
		g_free(me);
	}

	if((my_jb = jabber_buddy_find(js, purple_account_get_username(account), TRUE)))
		my_jb->subscription |= JABBER_SUB_BOTH;

	jabber_stream_set_state(js, JABBER_STREAM_CONNECTING);

	/* if they've got old-ssl mode going, we probably want to ignore SRV lookups */
	if(purple_account_get_bool(js->gc->account, "old_ssl", FALSE)) {
		if(purple_ssl_is_supported()) {
			js->gsc = purple_ssl_connect(js->gc->account,
					connect_server[0] ? connect_server : js->user->domain,
					purple_account_get_int(account, "port", 5223), jabber_login_callback_ssl,
					jabber_ssl_connect_failure, js->gc);
		} else {
			purple_connection_error(js->gc, _("SSL support unavailable"));
		}
	}

	/* no old-ssl, so if they've specified a connect server, we'll use that, otherwise we'll
	 * invoke the magic of SRV lookups, to figure out host and port */
	if(!js->gsc) {
		if(connect_server[0]) {
			jabber_login_connect(js, js->user->domain, connect_server, purple_account_get_int(account, "port", 5222));
		} else {
			js->srv_query_data = purple_srv_resolve("xmpp-client",
					"tcp", js->user->domain, srv_resolved_cb, js);
		}
	}
}


static gboolean
conn_close_cb(gpointer data)
{
	JabberStream *js = data;
	PurpleAccount *account = purple_connection_get_account(js->gc);

	purple_account_disconnect(account);

	return FALSE;
}

static void
jabber_connection_schedule_close(JabberStream *js)
{
	purple_timeout_add(0, conn_close_cb, js);
}

static void
jabber_registration_result_cb(JabberStream *js, xmlnode *packet, gpointer data)
{
	const char *type = xmlnode_get_attrib(packet, "type");
	char *buf;

	if(!strcmp(type, "result")) {
		buf = g_strdup_printf(_("Registration of %s@%s successful"),
				js->user->node, js->user->domain);
		purple_notify_info(NULL, _("Registration Successful"),
				_("Registration Successful"), buf);
		g_free(buf);
	} else {
		char *msg = jabber_parse_error(js, packet);

		if(!msg)
			msg = g_strdup(_("Unknown Error"));

		purple_notify_error(NULL, _("Registration Failed"),
				_("Registration Failed"), msg);
		g_free(msg);
	}
	jabber_connection_schedule_close(js);
}

static void
jabber_register_cb(JabberStream *js, PurpleRequestFields *fields)
{
	GList *groups, *flds;
	xmlnode *query, *y;
	JabberIq *iq;
	char *username;

	iq = jabber_iq_new_query(js, JABBER_IQ_SET, "jabber:iq:register");
	query = xmlnode_get_child(iq->node, "query");

	for(groups = purple_request_fields_get_groups(fields); groups;
			groups = groups->next) {
		for(flds = purple_request_field_group_get_fields(groups->data);
				flds; flds = flds->next) {
			PurpleRequestField *field = flds->data;
			const char *id = purple_request_field_get_id(field);
			const char *value = purple_request_field_string_get_value(field);

			if(!strcmp(id, "username")) {
				y = xmlnode_new_child(query, "username");
			} else if(!strcmp(id, "password")) {
				y = xmlnode_new_child(query, "password");
			} else if(!strcmp(id, "name")) {
				y = xmlnode_new_child(query, "name");
			} else if(!strcmp(id, "email")) {
				y = xmlnode_new_child(query, "email");
			} else if(!strcmp(id, "nick")) {
				y = xmlnode_new_child(query, "nick");
			} else if(!strcmp(id, "first")) {
				y = xmlnode_new_child(query, "first");
			} else if(!strcmp(id, "last")) {
				y = xmlnode_new_child(query, "last");
			} else if(!strcmp(id, "address")) {
				y = xmlnode_new_child(query, "address");
			} else if(!strcmp(id, "city")) {
				y = xmlnode_new_child(query, "city");
			} else if(!strcmp(id, "state")) {
				y = xmlnode_new_child(query, "state");
			} else if(!strcmp(id, "zip")) {
				y = xmlnode_new_child(query, "zip");
			} else if(!strcmp(id, "phone")) {
				y = xmlnode_new_child(query, "phone");
			} else if(!strcmp(id, "url")) {
				y = xmlnode_new_child(query, "url");
			} else if(!strcmp(id, "date")) {
				y = xmlnode_new_child(query, "date");
			} else {
				continue;
			}
			xmlnode_insert_data(y, value, -1);
			if(!strcmp(id, "username")) {
				if(js->user->node)
					g_free(js->user->node);
				js->user->node = g_strdup(value);
			}
		}
	}

	username = g_strdup_printf("%s@%s/%s", js->user->node, js->user->domain,
			js->user->resource);
	purple_account_set_username(js->gc->account, username);
	g_free(username);

	jabber_iq_set_callback(iq, jabber_registration_result_cb, NULL);

	jabber_iq_send(iq);

}

static void
jabber_register_cancel_cb(JabberStream *js, PurpleRequestFields *fields)
{
	jabber_connection_schedule_close(js);
}

static void jabber_register_x_data_cb(JabberStream *js, xmlnode *result, gpointer data)
{
	xmlnode *query;
	JabberIq *iq;

	iq = jabber_iq_new_query(js, JABBER_IQ_SET, "jabber:iq:register");
	query = xmlnode_get_child(iq->node, "query");

	xmlnode_insert_child(query, result);

	jabber_iq_set_callback(iq, jabber_registration_result_cb, NULL);
	jabber_iq_send(iq);
}

void jabber_register_parse(JabberStream *js, xmlnode *packet)
{
	const char *type;
	if(!(type = xmlnode_get_attrib(packet, "type")) || strcmp(type, "result"))
		return;

	if(js->registration) {
		PurpleRequestFields *fields;
		PurpleRequestFieldGroup *group;
		PurpleRequestField *field;
		xmlnode *query, *x, *y;
		char *instructions;

		/* get rid of the login thingy */
		purple_connection_set_state(js->gc, PURPLE_CONNECTED);

		query = xmlnode_get_child(packet, "query");

		if(xmlnode_get_child(query, "registered")) {
			purple_notify_error(NULL, _("Already Registered"),
					_("Already Registered"), NULL);
			jabber_connection_schedule_close(js);
			return;
		}

		if((x = xmlnode_get_child_with_namespace(packet, "x",
						"jabber:x:data"))) {
			jabber_x_data_request(js, x, jabber_register_x_data_cb, NULL);
			return;
		} else if((x = xmlnode_get_child_with_namespace(packet, "x",
						"jabber:x:oob"))) {
			xmlnode *url;

			if((url = xmlnode_get_child(x, "url"))) {
				char *href;
				if((href = xmlnode_get_data(url))) {
					purple_notify_uri(NULL, href);
					g_free(href);
					js->gc->wants_to_die = TRUE;
					jabber_connection_schedule_close(js);
					return;
				}
			}
		}

		/* as a last resort, use the old jabber:iq:register syntax */

		fields = purple_request_fields_new();
		group = purple_request_field_group_new(NULL);
		purple_request_fields_add_group(fields, group);

		field = purple_request_field_string_new("username", _("Username"),
				js->user->node, FALSE);
		purple_request_field_group_add_field(group, field);

		field = purple_request_field_string_new("password", _("Password"),
				purple_connection_get_password(js->gc), FALSE);
		purple_request_field_string_set_masked(field, TRUE);
		purple_request_field_group_add_field(group, field);

		if(xmlnode_get_child(query, "name")) {
			field = purple_request_field_string_new("name", _("Name"),
					purple_account_get_alias(js->gc->account), FALSE);
			purple_request_field_group_add_field(group, field);
		}
		if(xmlnode_get_child(query, "email")) {
			field = purple_request_field_string_new("email", _("E-mail"),
					NULL, FALSE);
			purple_request_field_group_add_field(group, field);
		}
		if(xmlnode_get_child(query, "nick")) {
			field = purple_request_field_string_new("nick", _("Nickname"),
					NULL, FALSE);
			purple_request_field_group_add_field(group, field);
		}
		if(xmlnode_get_child(query, "first")) {
			field = purple_request_field_string_new("first", _("First name"),
					NULL, FALSE);
			purple_request_field_group_add_field(group, field);
		}
		if(xmlnode_get_child(query, "last")) {
			field = purple_request_field_string_new("last", _("Last name"),
					NULL, FALSE);
			purple_request_field_group_add_field(group, field);
		}
		if(xmlnode_get_child(query, "address")) {
			field = purple_request_field_string_new("address", _("Address"),
					NULL, FALSE);
			purple_request_field_group_add_field(group, field);
		}
		if(xmlnode_get_child(query, "city")) {
			field = purple_request_field_string_new("city", _("City"),
					NULL, FALSE);
			purple_request_field_group_add_field(group, field);
		}
		if(xmlnode_get_child(query, "state")) {
			field = purple_request_field_string_new("state", _("State"),
					NULL, FALSE);
			purple_request_field_group_add_field(group, field);
		}
		if(xmlnode_get_child(query, "zip")) {
			field = purple_request_field_string_new("zip", _("Postal code"),
					NULL, FALSE);
			purple_request_field_group_add_field(group, field);
		}
		if(xmlnode_get_child(query, "phone")) {
			field = purple_request_field_string_new("phone", _("Phone"),
					NULL, FALSE);
			purple_request_field_group_add_field(group, field);
		}
		if(xmlnode_get_child(query, "url")) {
			field = purple_request_field_string_new("url", _("URL"),
					NULL, FALSE);
			purple_request_field_group_add_field(group, field);
		}
		if(xmlnode_get_child(query, "date")) {
			field = purple_request_field_string_new("date", _("Date"),
					NULL, FALSE);
			purple_request_field_group_add_field(group, field);
		}

		if((y = xmlnode_get_child(query, "instructions")))
			instructions = xmlnode_get_data(y);
		else
			instructions = g_strdup(_("Please fill out the information below "
						"to register your new account."));

		purple_request_fields(js->gc, _("Register New XMPP Account"),
				_("Register New XMPP Account"), instructions, fields,
				_("Register"), G_CALLBACK(jabber_register_cb),
				_("Cancel"), G_CALLBACK(jabber_register_cancel_cb),
				purple_connection_get_account(js->gc), NULL, NULL,
				js);

		g_free(instructions);
	}
}

void jabber_register_start(JabberStream *js)
{
	JabberIq *iq;

	iq = jabber_iq_new_query(js, JABBER_IQ_GET, "jabber:iq:register");
	jabber_iq_send(iq);
}

void jabber_register_account(PurpleAccount *account)
{
	PurpleConnection *gc = purple_account_get_connection(account);
	JabberStream *js;
	JabberBuddy *my_jb = NULL;
	const char *connect_server = purple_account_get_string(account,
			"connect_server", "");
	const char *server;

	js = gc->proto_data = g_new0(JabberStream, 1);
	js->gc = gc;
	js->registration = TRUE;
	js->iq_callbacks = g_hash_table_new_full(g_str_hash, g_str_equal,
			g_free, g_free);
	js->disco_callbacks = g_hash_table_new_full(g_str_hash, g_str_equal,
			g_free, g_free);
	js->user = jabber_id_new(purple_account_get_username(account));
	js->next_id = g_random_int();

	if(!js->user) {
		purple_connection_error(gc, _("Invalid XMPP ID"));
		return;
	}

	js->write_buffer = purple_circ_buffer_new(512);

	if(!js->user->resource) {
		char *me;
		js->user->resource = g_strdup("Home");
		if(!js->user->node) {
			js->user->node = js->user->domain;
			js->user->domain = g_strdup("jabber.org");
		}
		me = g_strdup_printf("%s@%s/%s", js->user->node, js->user->domain,
				js->user->resource);
		purple_account_set_username(account, me);
		g_free(me);
	}

	if((my_jb = jabber_buddy_find(js, purple_account_get_username(account), TRUE)))
		my_jb->subscription |= JABBER_SUB_BOTH;

	server = connect_server[0] ? connect_server : js->user->domain;

	jabber_stream_set_state(js, JABBER_STREAM_CONNECTING);

	if(purple_account_get_bool(account, "old_ssl", FALSE)) {
		if(purple_ssl_is_supported()) {
			js->gsc = purple_ssl_connect(account, server,
					purple_account_get_int(account, "port", 5222),
					jabber_login_callback_ssl, jabber_ssl_connect_failure, gc);
		} else {
			purple_connection_error(gc, _("SSL support unavailable"));
		}
	}

	if(!js->gsc) {
		if (connect_server[0]) {
			jabber_login_connect(js, js->user->domain, server,
			                     purple_account_get_int(account,
			                                          "port", 5222));
		} else {
			js->srv_query_data = purple_srv_resolve("xmpp-client",
			                                      "tcp",
			                                      js->user->domain,
			                                      srv_resolved_cb,
			                                      js);
		}
	}
}

void jabber_close(PurpleConnection *gc)
{
	JabberStream *js = gc->proto_data;

	/* Don't perform any actions on the ssl connection
	 * if we were forcibly disconnected because it will crash
	 * on some SSL backends.
	 */
	if (!gc->disconnect_timeout)
		jabber_send_raw(js, "</stream:stream>", -1);

	if (js->srv_query_data)
		purple_srv_cancel(js->srv_query_data);

	if(js->gsc) {
#ifdef HAVE_OPENSSL
		if (!gc->disconnect_timeout)
#endif
			purple_ssl_close(js->gsc);
	} else if (js->fd > 0) {
		if(js->gc->inpa)
			purple_input_remove(js->gc->inpa);
		close(js->fd);
	}

	jabber_buddy_remove_all_pending_buddy_info_requests(js);

	if(js->iq_callbacks)
		g_hash_table_destroy(js->iq_callbacks);
	if(js->disco_callbacks)
		g_hash_table_destroy(js->disco_callbacks);
	if(js->buddies)
		g_hash_table_destroy(js->buddies);
	if(js->chats)
		g_hash_table_destroy(js->chats);
	while(js->chat_servers) {
		g_free(js->chat_servers->data);
		js->chat_servers = g_list_delete_link(js->chat_servers, js->chat_servers);
	}
	while(js->user_directories) {
		g_free(js->user_directories->data);
		js->user_directories = g_list_delete_link(js->user_directories, js->user_directories);
	}
	if(js->stream_id)
		g_free(js->stream_id);
	if(js->user)
		jabber_id_free(js->user);
	if(js->avatar_hash)
		g_free(js->avatar_hash);
	purple_circ_buffer_destroy(js->write_buffer);
	if(js->writeh)
		purple_input_remove(js->writeh);
#ifdef HAVE_CYRUS_SASL
	if(js->sasl)
		sasl_dispose(&js->sasl);
	if(js->sasl_mechs)
		g_string_free(js->sasl_mechs, TRUE);
	if(js->sasl_cb)
		g_free(js->sasl_cb);
	if(js->serverFQDN)
		g_free(js->serverFQDN);
#endif
	g_free(js->server_name);
	g_free(js->gmail_last_time);
	g_free(js->gmail_last_tid);
	g_free(js);

	gc->proto_data = NULL;
}

void jabber_stream_set_state(JabberStream *js, JabberStreamState state)
{
	PurpleStoredImage *img;

	js->state = state;
	switch(state) {
		case JABBER_STREAM_OFFLINE:
			break;
		case JABBER_STREAM_CONNECTING:
			purple_connection_update_progress(js->gc, _("Connecting"), 1,
					JABBER_CONNECT_STEPS);
			break;
		case JABBER_STREAM_INITIALIZING:
			purple_connection_update_progress(js->gc, _("Initializing Stream"),
					js->gsc ? 5 : 2, JABBER_CONNECT_STEPS);
			jabber_stream_init(js);
			break;
		case JABBER_STREAM_AUTHENTICATING:
			purple_connection_update_progress(js->gc, _("Authenticating"),
					js->gsc ? 6 : 3, JABBER_CONNECT_STEPS);
			if(js->protocol_version == JABBER_PROTO_0_9 && js->registration) {
				jabber_register_start(js);
			} else if(js->auth_type == JABBER_AUTH_IQ_AUTH) {
				jabber_auth_start_old(js);
			}
			break;
		case JABBER_STREAM_REINITIALIZING:
			purple_connection_update_progress(js->gc, _("Re-initializing Stream"),
					(js->gsc ? 7 : 4), JABBER_CONNECT_STEPS);

			/* The stream will be reinitialized later, in jabber_recv_cb_ssl() */
			js->reinit = TRUE;

			break;
		case JABBER_STREAM_CONNECTED:
			/* lets make sure our buddy icon is up to date
			 * before we go letting people know we're here */
			img = purple_buddy_icons_find_account_icon(js->gc->account);
			jabber_set_buddy_icon(js->gc, img);
			purple_imgstore_unref(img);

			/* now we can alert the core that we're ready to send status */
			purple_connection_set_state(js->gc, PURPLE_CONNECTED);
			jabber_disco_items_server(js);
			break;
	}
}

char *jabber_get_next_id(JabberStream *js)
{
	return g_strdup_printf("purple%x", js->next_id++);
}


void jabber_idle_set(PurpleConnection *gc, int idle)
{
	JabberStream *js = gc->proto_data;

	js->idle = idle ? time(NULL) - idle : idle;
}

const char *jabber_list_icon(PurpleAccount *a, PurpleBuddy *b)
{
	return "jabber";
}

const char* jabber_list_emblem(PurpleBuddy *b)
{
	JabberStream *js;
	JabberBuddy *jb = NULL;

	if(!b->account->gc)
		return NULL;

	js = b->account->gc->proto_data;
	if(js)
		jb = jabber_buddy_find(js, b->name, FALSE);

	if(!PURPLE_BUDDY_IS_ONLINE(b)) {
		if(jb && (jb->subscription & JABBER_SUB_PENDING ||
					!(jb->subscription & JABBER_SUB_TO)))
			return "not-authorized";
	}
	return NULL;
}

char *jabber_status_text(PurpleBuddy *b)
{
	JabberBuddy *jb = jabber_buddy_find(b->account->gc->proto_data, b->name,
			FALSE);
	char *ret = NULL;

	if(jb && !PURPLE_BUDDY_IS_ONLINE(b) && (jb->subscription & JABBER_SUB_PENDING || !(jb->subscription & JABBER_SUB_TO))) {
		ret = g_strdup(_("Not Authorized"));
	} else if(jb && !PURPLE_BUDDY_IS_ONLINE(b) && jb->error_msg) {
		ret = g_strdup(jb->error_msg);
	} else {
		char *stripped;

		if(!(stripped = purple_markup_strip_html(jabber_buddy_get_status_msg(jb)))) {
			PurpleStatus *status = purple_presence_get_active_status(purple_buddy_get_presence(b));

			if(!purple_status_is_available(status))
				stripped = g_strdup(purple_status_get_name(status));
		}

		if(stripped) {
			ret = g_markup_escape_text(stripped, -1);
			g_free(stripped);
		}
	}

	return ret;
}

void jabber_tooltip_text(PurpleBuddy *b, PurpleNotifyUserInfo *user_info, gboolean full)
{
	JabberBuddy *jb;

	g_return_if_fail(b != NULL);
	g_return_if_fail(b->account != NULL);
	g_return_if_fail(b->account->gc != NULL);
	g_return_if_fail(b->account->gc->proto_data != NULL);

	jb = jabber_buddy_find(b->account->gc->proto_data, b->name,
			FALSE);

	if(jb) {
		JabberBuddyResource *jbr = NULL;
		const char *sub;
		GList *l;

		if (full) {
			if(jb->subscription & JABBER_SUB_FROM) {
				if(jb->subscription & JABBER_SUB_TO)
					sub = _("Both");
				else if(jb->subscription & JABBER_SUB_PENDING)
					sub = _("From (To pending)");
				else
					sub = _("From");
			} else {
				if(jb->subscription & JABBER_SUB_TO)
					sub = _("To");
				else if(jb->subscription & JABBER_SUB_PENDING)
					sub = _("None (To pending)");
				else
					sub = _("None");
			}
			
			purple_notify_user_info_add_pair(user_info, _("Subscription"), sub);
		}

		for(l=jb->resources; l; l = l->next) {
			char *text = NULL;
			char *res = NULL;
			char *label, *value;
			const char *state;

			jbr = l->data;

			if(jbr->status) {
				char *tmp;
				text = purple_strreplace(jbr->status, "\n", "<br />\n");
				tmp = purple_markup_strip_html(text);
				g_free(text);
				text = g_markup_escape_text(tmp, -1);
				g_free(tmp);
			}

			if(jbr->name)
				res = g_strdup_printf(" (%s)", jbr->name);

			state = jabber_buddy_state_get_name(jbr->state);
			if (text != NULL && !purple_utf8_strcasecmp(state, text)) {
				g_free(text);
				text = NULL;
			}

			label = g_strdup_printf("%s%s",
							_("Status"), (res ? res : ""));
			value = g_strdup_printf("%s%s%s",
							state,
							(text ? ": " : ""),
							(text ? text : ""));

			purple_notify_user_info_add_pair(user_info, label, value);

			g_free(label);
			g_free(value);
			g_free(text);
			g_free(res);
		}

		if(!PURPLE_BUDDY_IS_ONLINE(b) && jb->error_msg) {
			purple_notify_user_info_add_pair(user_info, _("Error"), jb->error_msg);
		}
	}
}

GList *jabber_status_types(PurpleAccount *account)
{
	PurpleStatusType *type;
	GList *types = NULL;
	PurpleValue *priority_value;

	priority_value = purple_value_new(PURPLE_TYPE_INT);
	purple_value_set_int(priority_value, 1);
	type = purple_status_type_new_with_attrs(PURPLE_STATUS_AVAILABLE,
			jabber_buddy_state_get_status_id(JABBER_BUDDY_STATE_ONLINE),
			NULL, TRUE, TRUE, FALSE,
			"priority", _("Priority"), priority_value,
			"message", _("Message"), purple_value_new(PURPLE_TYPE_STRING),
			NULL);
	types = g_list_append(types, type);

	priority_value = purple_value_new(PURPLE_TYPE_INT);
	purple_value_set_int(priority_value, 1);
	type = purple_status_type_new_with_attrs(PURPLE_STATUS_AVAILABLE,
			jabber_buddy_state_get_status_id(JABBER_BUDDY_STATE_CHAT),
			_("Chatty"), TRUE, TRUE, FALSE,
			"priority", _("Priority"), priority_value,
			"message", _("Message"), purple_value_new(PURPLE_TYPE_STRING),
			NULL);
	types = g_list_append(types, type);

	priority_value = purple_value_new(PURPLE_TYPE_INT);
	purple_value_set_int(priority_value, 0);
	type = purple_status_type_new_with_attrs(PURPLE_STATUS_AWAY,
			jabber_buddy_state_get_status_id(JABBER_BUDDY_STATE_AWAY),
			NULL, TRUE, TRUE, FALSE,
			"priority", _("Priority"), priority_value,
			"message", _("Message"), purple_value_new(PURPLE_TYPE_STRING),
			NULL);
	types = g_list_append(types, type);

	priority_value = purple_value_new(PURPLE_TYPE_INT);
	purple_value_set_int(priority_value, 0);
	type = purple_status_type_new_with_attrs(PURPLE_STATUS_EXTENDED_AWAY,
			jabber_buddy_state_get_status_id(JABBER_BUDDY_STATE_XA),
			NULL, TRUE, TRUE, FALSE,
			"priority", _("Priority"), priority_value,
			"message", _("Message"), purple_value_new(PURPLE_TYPE_STRING),
			NULL);
	types = g_list_append(types, type);

	priority_value = purple_value_new(PURPLE_TYPE_INT);
	purple_value_set_int(priority_value, 0);
	type = purple_status_type_new_with_attrs(PURPLE_STATUS_UNAVAILABLE,
			jabber_buddy_state_get_status_id(JABBER_BUDDY_STATE_DND),
			_("Do Not Disturb"), TRUE, TRUE, FALSE,
			"priority", _("Priority"), priority_value,
			"message", _("Message"), purple_value_new(PURPLE_TYPE_STRING),
			NULL);
	types = g_list_append(types, type);

	/*
	if(js->protocol_version == JABBER_PROTO_0_9)
		m = g_list_append(m, _("Invisible"));
	*/

	type = purple_status_type_new_with_attrs(PURPLE_STATUS_OFFLINE,
			jabber_buddy_state_get_status_id(JABBER_BUDDY_STATE_UNAVAILABLE),
			NULL, FALSE, TRUE, FALSE,
			"message", _("Message"), purple_value_new(PURPLE_TYPE_STRING),
			NULL);
	types = g_list_append(types, type);

	return types;
}

static void
jabber_password_change_result_cb(JabberStream *js, xmlnode *packet,
		gpointer data)
{
	const char *type;

	type = xmlnode_get_attrib(packet, "type");

	if(type && !strcmp(type, "result")) {
		purple_notify_info(js->gc, _("Password Changed"), _("Password Changed"),
				_("Your password has been changed."));
	} else {
		char *msg = jabber_parse_error(js, packet);

		purple_notify_error(js->gc, _("Error changing password"),
				_("Error changing password"), msg);
		g_free(msg);
	}
}

static void jabber_password_change_cb(JabberStream *js,
		PurpleRequestFields *fields)
{
	const char *p1, *p2;
	JabberIq *iq;
	xmlnode *query, *y;

	p1 = purple_request_fields_get_string(fields, "password1");
	p2 = purple_request_fields_get_string(fields, "password2");

	if(strcmp(p1, p2)) {
		purple_notify_error(js->gc, NULL, _("New passwords do not match."), NULL);
		return;
	}

	iq = jabber_iq_new_query(js, JABBER_IQ_SET, "jabber:iq:register");

	xmlnode_set_attrib(iq->node, "to", js->user->domain);

	query = xmlnode_get_child(iq->node, "query");

	y = xmlnode_new_child(query, "username");
	xmlnode_insert_data(y, js->user->node, -1);
	y = xmlnode_new_child(query, "password");
	xmlnode_insert_data(y, p1, -1);

	jabber_iq_set_callback(iq, jabber_password_change_result_cb, NULL);

	jabber_iq_send(iq);

	purple_account_set_password(js->gc->account, p1);
}

static void jabber_password_change(PurplePluginAction *action)
{

	PurpleConnection *gc = (PurpleConnection *) action->context;
	JabberStream *js = gc->proto_data;
	PurpleRequestFields *fields;
	PurpleRequestFieldGroup *group;
	PurpleRequestField *field;

	fields = purple_request_fields_new();
	group = purple_request_field_group_new(NULL);
	purple_request_fields_add_group(fields, group);

	field = purple_request_field_string_new("password1", _("Password"),
			"", FALSE);
	purple_request_field_string_set_masked(field, TRUE);
	purple_request_field_group_add_field(group, field);

	field = purple_request_field_string_new("password2", _("Password (again)"),
			"", FALSE);
	purple_request_field_string_set_masked(field, TRUE);
	purple_request_field_group_add_field(group, field);

	purple_request_fields(js->gc, _("Change XMPP Password"),
			_("Change XMPP Password"), _("Please enter your new password"),
			fields, _("OK"), G_CALLBACK(jabber_password_change_cb),
			_("Cancel"), NULL,
			purple_connection_get_account(gc), NULL, NULL,			  
			js);
}

GList *jabber_actions(PurplePlugin *plugin, gpointer context)
{
	GList *m = NULL;
	PurplePluginAction *act;

	act = purple_plugin_action_new(_("Set User Info..."),
	                             jabber_setup_set_info);
	m = g_list_append(m, act);

	/* if (js->protocol_options & CHANGE_PASSWORD) { */
		act = purple_plugin_action_new(_("Change Password..."),
		                             jabber_password_change);
		m = g_list_append(m, act);
	/* } */

	act = purple_plugin_action_new(_("Search for Users..."),
	                             jabber_user_search_begin);
	m = g_list_append(m, act);

	return m;
}

PurpleChat *jabber_find_blist_chat(PurpleAccount *account, const char *name)
{
	PurpleBlistNode *gnode, *cnode;
	JabberID *jid;

	if(!(jid = jabber_id_new(name)))
		return NULL;

	for(gnode = purple_get_blist()->root; gnode; gnode = gnode->next) {
		for(cnode = gnode->child; cnode; cnode = cnode->next) {
			PurpleChat *chat = (PurpleChat*)cnode;
			const char *room, *server;
			if(!PURPLE_BLIST_NODE_IS_CHAT(cnode))
				continue;

			if(chat->account != account)
				continue;

			if(!(room = g_hash_table_lookup(chat->components, "room")))
				continue;
			if(!(server = g_hash_table_lookup(chat->components, "server")))
				continue;

			if(jid->node && jid->domain &&
					!g_utf8_collate(room, jid->node) && !g_utf8_collate(server, jid->domain)) {
				jabber_id_free(jid);
				return chat;
			}
		}
	}
	jabber_id_free(jid);
	return NULL;
}

void jabber_convo_closed(PurpleConnection *gc, const char *who)
{
	JabberStream *js = gc->proto_data;
	JabberID *jid;
	JabberBuddy *jb;
	JabberBuddyResource *jbr;

	if(!(jid = jabber_id_new(who)))
		return;

	if((jb = jabber_buddy_find(js, who, TRUE)) &&
			(jbr = jabber_buddy_find_resource(jb, jid->resource))) {
		if(jbr->thread_id) {
			g_free(jbr->thread_id);
			jbr->thread_id = NULL;
		}
		if(jbr->chat_states == JABBER_CHAT_STATES_SUPPORTED)
			jabber_message_conv_closed(js, who);
	}

	jabber_id_free(jid);
}


char *jabber_parse_error(JabberStream *js, xmlnode *packet)
{
	xmlnode *error;
	const char *code = NULL, *text = NULL;
	const char *xmlns = xmlnode_get_namespace(packet);
	char *cdata = NULL;

	if((error = xmlnode_get_child(packet, "error"))) {
		cdata = xmlnode_get_data(error);
		code = xmlnode_get_attrib(error, "code");

		/* Stanza errors */
		if(xmlnode_get_child(error, "bad-request")) {
			text = _("Bad Request");
		} else if(xmlnode_get_child(error, "conflict")) {
			text = _("Conflict");
		} else if(xmlnode_get_child(error, "feature-not-implemented")) {
			text = _("Feature Not Implemented");
		} else if(xmlnode_get_child(error, "forbidden")) {
			text = _("Forbidden");
		} else if(xmlnode_get_child(error, "gone")) {
			text = _("Gone");
		} else if(xmlnode_get_child(error, "internal-server-error")) {
			text = _("Internal Server Error");
		} else if(xmlnode_get_child(error, "item-not-found")) {
			text = _("Item Not Found");
		} else if(xmlnode_get_child(error, "jid-malformed")) {
			text = _("Malformed XMPP ID");
		} else if(xmlnode_get_child(error, "not-acceptable")) {
			text = _("Not Acceptable");
		} else if(xmlnode_get_child(error, "not-allowed")) {
			text = _("Not Allowed");
		} else if(xmlnode_get_child(error, "not-authorized")) {
			text = _("Not Authorized");
		} else if(xmlnode_get_child(error, "payment-required")) {
			text = _("Payment Required");
		} else if(xmlnode_get_child(error, "recipient-unavailable")) {
			text = _("Recipient Unavailable");
		} else if(xmlnode_get_child(error, "redirect")) {
			/* XXX */
		} else if(xmlnode_get_child(error, "registration-required")) {
			text = _("Registration Required");
		} else if(xmlnode_get_child(error, "remote-server-not-found")) {
			text = _("Remote Server Not Found");
		} else if(xmlnode_get_child(error, "remote-server-timeout")) {
			text = _("Remote Server Timeout");
		} else if(xmlnode_get_child(error, "resource-constraint")) {
			text = _("Server Overloaded");
		} else if(xmlnode_get_child(error, "service-unavailable")) {
			text = _("Service Unavailable");
		} else if(xmlnode_get_child(error, "subscription-required")) {
			text = _("Subscription Required");
		} else if(xmlnode_get_child(error, "unexpected-request")) {
			text = _("Unexpected Request");
		} else if(xmlnode_get_child(error, "undefined-condition")) {
			text = _("Unknown Error");
		}
	} else if(xmlns && !strcmp(xmlns, "urn:ietf:params:xml:ns:xmpp-sasl")) {
		if(xmlnode_get_child(packet, "aborted")) {
			js->gc->wants_to_die = TRUE;
			text = _("Authorization Aborted");
		} else if(xmlnode_get_child(packet, "incorrect-encoding")) {
			text = _("Incorrect encoding in authorization");
		} else if(xmlnode_get_child(packet, "invalid-authzid")) {
			js->gc->wants_to_die = TRUE;
			text = _("Invalid authzid");
		} else if(xmlnode_get_child(packet, "invalid-mechanism")) {
			js->gc->wants_to_die = TRUE;
			text = _("Invalid Authorization Mechanism");
		} else if(xmlnode_get_child(packet, "mechanism-too-weak")) {
			js->gc->wants_to_die = TRUE;
			text = _("Authorization mechanism too weak");
		} else if(xmlnode_get_child(packet, "not-authorized")) {
			js->gc->wants_to_die = TRUE;
			text = _("Not Authorized");
		} else if(xmlnode_get_child(packet, "temporary-auth-failure")) {
			text = _("Temporary Authentication Failure");
		} else {
			js->gc->wants_to_die = TRUE;
			text = _("Authentication Failure");
		}
	} else if(!strcmp(packet->name, "stream:error") ||
			 (!strcmp(packet->name, "error") &&
				!strcmp(xmlns, "http://etherx.jabber.org/streams"))) {
		if(xmlnode_get_child(packet, "bad-format")) {
			text = _("Bad Format");
		} else if(xmlnode_get_child(packet, "bad-namespace-prefix")) {
			text = _("Bad Namespace Prefix");
		} else if(xmlnode_get_child(packet, "conflict")) {
			js->gc->wants_to_die = TRUE;
			text = _("Resource Conflict");
		} else if(xmlnode_get_child(packet, "connection-timeout")) {
			text = _("Connection Timeout");
		} else if(xmlnode_get_child(packet, "host-gone")) {
			text = _("Host Gone");
		} else if(xmlnode_get_child(packet, "host-unknown")) {
			text = _("Host Unknown");
		} else if(xmlnode_get_child(packet, "improper-addressing")) {
			text = _("Improper Addressing");
		} else if(xmlnode_get_child(packet, "internal-server-error")) {
			text = _("Internal Server Error");
		} else if(xmlnode_get_child(packet, "invalid-id")) {
			text = _("Invalid ID");
		} else if(xmlnode_get_child(packet, "invalid-namespace")) {
			text = _("Invalid Namespace");
		} else if(xmlnode_get_child(packet, "invalid-xml")) {
			text = _("Invalid XML");
		} else if(xmlnode_get_child(packet, "nonmatching-hosts")) {
			text = _("Non-matching Hosts");
		} else if(xmlnode_get_child(packet, "not-authorized")) {
			text = _("Not Authorized");
		} else if(xmlnode_get_child(packet, "policy-violation")) {
			text = _("Policy Violation");
		} else if(xmlnode_get_child(packet, "remote-connection-failed")) {
			text = _("Remote Connection Failed");
		} else if(xmlnode_get_child(packet, "resource-constraint")) {
			text = _("Resource Constraint");
		} else if(xmlnode_get_child(packet, "restricted-xml")) {
			text = _("Restricted XML");
		} else if(xmlnode_get_child(packet, "see-other-host")) {
			text = _("See Other Host");
		} else if(xmlnode_get_child(packet, "system-shutdown")) {
			text = _("System Shutdown");
		} else if(xmlnode_get_child(packet, "undefined-condition")) {
			text = _("Undefined Condition");
		} else if(xmlnode_get_child(packet, "unsupported-encoding")) {
			text = _("Unsupported Encoding");
		} else if(xmlnode_get_child(packet, "unsupported-stanza-type")) {
			text = _("Unsupported Stanza Type");
		} else if(xmlnode_get_child(packet, "unsupported-version")) {
			text = _("Unsupported Version");
		} else if(xmlnode_get_child(packet, "xml-not-well-formed")) {
			text = _("XML Not Well Formed");
		} else {
			text = _("Stream Error");
		}
	}

	if(text || cdata) {
		char *ret = g_strdup_printf("%s%s%s", code ? code : "",
				code ? ": " : "", text ? text : cdata);
		g_free(cdata);
		return ret;
	} else {
		return NULL;
	}
}

static PurpleCmdRet jabber_cmd_chat_config(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	JabberChat *chat = jabber_chat_find_by_conv(conv);
	jabber_chat_request_room_configure(chat);
	return PURPLE_CMD_RET_OK;
}

static PurpleCmdRet jabber_cmd_chat_register(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	JabberChat *chat = jabber_chat_find_by_conv(conv);
	jabber_chat_register(chat);
	return PURPLE_CMD_RET_OK;
}

static PurpleCmdRet jabber_cmd_chat_topic(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	JabberChat *chat = jabber_chat_find_by_conv(conv);
	jabber_chat_change_topic(chat, args ? args[0] : NULL);
	return PURPLE_CMD_RET_OK;
}

static PurpleCmdRet jabber_cmd_chat_nick(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	JabberChat *chat = jabber_chat_find_by_conv(conv);

	if(!args || !args[0])
		return PURPLE_CMD_RET_FAILED;

	jabber_chat_change_nick(chat, args[0]);
	return PURPLE_CMD_RET_OK;
}

static PurpleCmdRet jabber_cmd_chat_part(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	JabberChat *chat = jabber_chat_find_by_conv(conv);
	jabber_chat_part(chat, args ? args[0] : NULL);
	return PURPLE_CMD_RET_OK;
}

static PurpleCmdRet jabber_cmd_chat_ban(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	JabberChat *chat = jabber_chat_find_by_conv(conv);

	if(!args || !args[0])
		return PURPLE_CMD_RET_FAILED;

	if(!jabber_chat_ban_user(chat, args[0], args[1])) {
		*error = g_strdup_printf(_("Unable to ban user %s"), args[0]);
		return PURPLE_CMD_RET_FAILED;
	}

	return PURPLE_CMD_RET_OK;
}

static PurpleCmdRet jabber_cmd_chat_affiliate(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	JabberChat *chat = jabber_chat_find_by_conv(conv);

	if (!args || !args[0] || !args[1])
		return PURPLE_CMD_RET_FAILED;

	if (strcmp(args[1], "owner") != 0 && 
	    strcmp(args[1], "admin") != 0 &&
	    strcmp(args[1], "member") != 0 &&
	    strcmp(args[1], "outcast") != 0 &&
	    strcmp(args[1], "none") != 0) {
		*error = g_strdup_printf(_("Unknown affiliation: \"%s\""), args[1]);
		return PURPLE_CMD_RET_FAILED;
	}

	if (!jabber_chat_affiliate_user(chat, args[0], args[1])) {
		*error = g_strdup_printf(_("Unable to affiliate user %s as \"%s\""), args[0], args[1]);
		return PURPLE_CMD_RET_FAILED;
	}

	return PURPLE_CMD_RET_OK;
}

static PurpleCmdRet jabber_cmd_chat_role(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	JabberChat *chat;

	if (!args || !args[0] || !args[1])
		return PURPLE_CMD_RET_FAILED;

	if (strcmp(args[1], "moderator") != 0 &&
	    strcmp(args[1], "participant") != 0 &&
	    strcmp(args[1], "visitor") != 0 &&
	    strcmp(args[1], "none") != 0) {
		*error = g_strdup_printf(_("Unknown role: \"%s\""), args[1]);
		return PURPLE_CMD_RET_FAILED;
	}

	chat = jabber_chat_find_by_conv(conv);

	if (!jabber_chat_role_user(chat, args[0], args[1])) {
		*error = g_strdup_printf(_("Unable to set role \"%s\" for user: %s"),
		                         args[1], args[0]);
		return PURPLE_CMD_RET_FAILED;
	}

	return PURPLE_CMD_RET_OK;
}

static PurpleCmdRet jabber_cmd_chat_invite(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	if(!args || !args[0])
		return PURPLE_CMD_RET_FAILED;

	jabber_chat_invite(purple_conversation_get_gc(conv),
			purple_conv_chat_get_id(PURPLE_CONV_CHAT(conv)), args[1] ? args[1] : "",
			args[0]);

	return PURPLE_CMD_RET_OK;
}

static PurpleCmdRet jabber_cmd_chat_join(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	JabberChat *chat = jabber_chat_find_by_conv(conv);
	GHashTable *components;

	if(!args || !args[0])
		return PURPLE_CMD_RET_FAILED;

	components = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, NULL);

	g_hash_table_replace(components, "room", args[0]);
	g_hash_table_replace(components, "server", chat->server);
	g_hash_table_replace(components, "handle", chat->handle);
	if(args[1])
		g_hash_table_replace(components, "password", args[1]);

	jabber_chat_join(purple_conversation_get_gc(conv), components);

	g_hash_table_destroy(components);
	return PURPLE_CMD_RET_OK;
}

static PurpleCmdRet jabber_cmd_chat_kick(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	JabberChat *chat = jabber_chat_find_by_conv(conv);

	if(!args || !args[0])
		return PURPLE_CMD_RET_FAILED;

	if(!jabber_chat_kick_user(chat, args[0], args[1])) {
		*error = g_strdup_printf(_("Unable to kick user %s"), args[0]);
		return PURPLE_CMD_RET_FAILED;
	}

	return PURPLE_CMD_RET_OK;
}

static PurpleCmdRet jabber_cmd_chat_msg(PurpleConversation *conv,
		const char *cmd, char **args, char **error, void *data)
{
	JabberChat *chat = jabber_chat_find_by_conv(conv);
	char *who;

	who = g_strdup_printf("%s@%s/%s", chat->room, chat->server, args[0]);

	jabber_message_send_im(purple_conversation_get_gc(conv), who, args[1], 0);

	g_free(who);
	return PURPLE_CMD_RET_OK;
}

gboolean jabber_offline_message(const PurpleBuddy *buddy)
{
	return TRUE;
}

void jabber_register_commands(void)
{
	purple_cmd_register("config", "", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY,
	                  "prpl-jabber", jabber_cmd_chat_config,
	                  _("config:  Configure a chat room."), NULL);
	purple_cmd_register("configure", "", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY,
	                  "prpl-jabber", jabber_cmd_chat_config,
	                  _("configure:  Configure a chat room."), NULL);
	purple_cmd_register("nick", "s", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY,
	                  "prpl-jabber", jabber_cmd_chat_nick,
	                  _("nick &lt;new nickname&gt;:  Change your nickname."),
	                  NULL);
	purple_cmd_register("part", "s", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY |
	                  PURPLE_CMD_FLAG_ALLOW_WRONG_ARGS, "prpl-jabber",
	                  jabber_cmd_chat_part, _("part [room]:  Leave the room."),
	                  NULL);
	purple_cmd_register("register", "", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY,
	                  "prpl-jabber", jabber_cmd_chat_register,
	                  _("register:  Register with a chat room."), NULL);
	/* XXX: there needs to be a core /topic cmd, methinks */
	purple_cmd_register("topic", "s", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY |
	                  PURPLE_CMD_FLAG_ALLOW_WRONG_ARGS, "prpl-jabber",
	                  jabber_cmd_chat_topic,
	                  _("topic [new topic]:  View or change the topic."),
	                  NULL);
	purple_cmd_register("ban", "ws", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY |
	                  PURPLE_CMD_FLAG_ALLOW_WRONG_ARGS, "prpl-jabber",
	                  jabber_cmd_chat_ban,
	                  _("ban &lt;user&gt; [room]:  Ban a user from the room."),
	                  NULL);
	purple_cmd_register("affiliate", "ws", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY |
	                  PURPLE_CMD_FLAG_ALLOW_WRONG_ARGS, "prpl-jabber",
	                  jabber_cmd_chat_affiliate,
	                  _("affiliate &lt;user&gt; &lt;owner|admin|member|outcast|none&gt;: Set a user's affiliation with the room."),
	                  NULL);
	purple_cmd_register("role", "ws", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY |
	                  PURPLE_CMD_FLAG_ALLOW_WRONG_ARGS, "prpl-jabber",
	                  jabber_cmd_chat_role,
	                  _("role &lt;user&gt; &lt;moderator|participant|visitor|none&gt;: Set a user's role in the room."),
	                  NULL);
	purple_cmd_register("invite", "ws", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY |
	                  PURPLE_CMD_FLAG_ALLOW_WRONG_ARGS, "prpl-jabber",
	                  jabber_cmd_chat_invite,
	                  _("invite &lt;user&gt; [message]:  Invite a user to the room."),
	                  NULL);
	purple_cmd_register("join", "ws", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY |
	                  PURPLE_CMD_FLAG_ALLOW_WRONG_ARGS, "prpl-jabber",
	                  jabber_cmd_chat_join,
	                  _("join: &lt;room&gt; [server]:  Join a chat on this server."),
	                  NULL);
	purple_cmd_register("kick", "ws", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY |
	                  PURPLE_CMD_FLAG_ALLOW_WRONG_ARGS, "prpl-jabber",
	                  jabber_cmd_chat_kick,
	                  _("kick &lt;user&gt; [room]:  Kick a user from the room."),
	                  NULL);
	purple_cmd_register("msg", "ws", PURPLE_CMD_P_PRPL,
	                  PURPLE_CMD_FLAG_CHAT | PURPLE_CMD_FLAG_PRPL_ONLY,
	                  "prpl-jabber", jabber_cmd_chat_msg,
	                  _("msg &lt;user&gt; &lt;message&gt;:  Send a private message to another user."),
	                  NULL);
}

void
jabber_init_plugin(PurplePlugin *plugin)
{
        my_protocol = plugin;
}