src/protocols/simple/simple.c

changeset 14253
b63ebf84c42b
parent 14252
d10dda2777a9
child 14254
77edc7a6191a
--- a/src/protocols/simple/simple.c	Sat Aug 19 00:24:14 2006 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1844 +0,0 @@
-/**
- * @file simple.c
- *
- * gaim
- *
- * Copyright (C) 2005 Thomas Butter <butter@uni-mannheim.de>
- *
- * ***
- * Thanks to Google's Summer of Code Program and the helpful mentors
- * ***
- *
- * 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 "accountopt.h"
-#include "blist.h"
-#include "conversation.h"
-#include "dnsquery.h"
-#include "debug.h"
-#include "notify.h"
-#include "privacy.h"
-#include "prpl.h"
-#include "plugin.h"
-#include "util.h"
-#include "version.h"
-#include "network.h"
-#include "xmlnode.h"
-
-#include "simple.h"
-#include "sipmsg.h"
-#include "dnssrv.h"
-#include "ntlm.h"
-
-static char *gentag() {
-	return g_strdup_printf("%04d%04d", rand() & 0xFFFF, rand() & 0xFFFF);
-}
-
-static char *genbranch() {
-	return g_strdup_printf("z9hG4bK%04X%04X%04X%04X%04X",
-		rand() & 0xFFFF, rand() & 0xFFFF, rand() & 0xFFFF,
-		rand() & 0xFFFF, rand() & 0xFFFF);
-}
-
-static char *gencallid() {
-	return g_strdup_printf("%04Xg%04Xa%04Xi%04Xm%04Xt%04Xb%04Xx%04Xx",
-		rand() & 0xFFFF, rand() & 0xFFFF, rand() & 0xFFFF,
-		rand() & 0xFFFF, rand() & 0xFFFF, rand() & 0xFFFF,
-		rand() & 0xFFFF, rand() & 0xFFFF);
-}
-
-static const char *simple_list_icon(GaimAccount *a, GaimBuddy *b) {
-	return "simple";
-}
-
-static void simple_keep_alive(GaimConnection *gc) {
-	struct simple_account_data *sip = gc->proto_data;
-	if(sip->udp) { /* in case of UDP send a packet only with a 0 byte to
-			 remain in the NAT table */
-		gchar buf[2] = {0, 0};
-		gaim_debug_info("simple", "sending keep alive\n");
-		sendto(sip->fd, buf, 1, 0, (struct sockaddr*)&sip->serveraddr, sizeof(struct sockaddr_in));
-	}
-	return;
-}
-
-static gboolean process_register_response(struct simple_account_data *sip, struct sipmsg *msg, struct transaction *tc);
-static void send_notify(struct simple_account_data *sip, struct simple_watcher *);
-
-static void send_publish(struct simple_account_data *sip);
-
-static void do_notifies(struct simple_account_data *sip) {
-	GSList *tmp = sip->watcher;
-	gaim_debug_info("simple", "do_notifies()\n");
-	if((sip->republish != -1) || sip->republish < time(NULL)) {
-		if(gaim_account_get_bool(sip->account, "dopublish", TRUE)) {
-			send_publish(sip);
-		}
-	}
-
-	while(tmp) {
-		gaim_debug_info("simple", "notifying %s\n", ((struct simple_watcher*)tmp->data)->name);
-		send_notify(sip, tmp->data);
-		tmp = tmp->next;
-	}
-}
-
-static void simple_set_status(GaimAccount *account, GaimStatus *status) {
-	GaimStatusPrimitive primitive = gaim_status_type_get_primitive(gaim_status_get_type(status));
-	struct simple_account_data *sip = NULL;
-
-	if (!gaim_status_is_active(status))
-		return;
-
-	if (account->gc)
-		sip = account->gc->proto_data;
-
-	if (sip)
-	{
-		g_free(sip->status);
-		if (primitive == GAIM_STATUS_AVAILABLE)
-			sip->status = g_strdup("available");
-		else
-			sip->status = g_strdup("busy");
-
-		do_notifies(sip);
-	}
-}
-
-static struct sip_connection *connection_find(struct simple_account_data *sip, int fd) {
-	struct sip_connection *ret = NULL;
-	GSList *entry = sip->openconns;
-	while(entry) {
-		ret = entry->data;
-		if(ret->fd == fd) return ret;
-		entry = entry->next;
-	}
-	return NULL;
-}
-
-static struct simple_watcher *watcher_find(struct simple_account_data *sip,
-		const gchar *name) {
-	struct simple_watcher *watcher;
-	GSList *entry = sip->watcher;
-	while(entry) {
-		watcher = entry->data;
-		if(!strcmp(name, watcher->name)) return watcher;
-		entry = entry->next;
-	}
-	return NULL;
-}
-
-static struct simple_watcher *watcher_create(struct simple_account_data *sip,
-		const gchar *name, const gchar *callid, const gchar *ourtag,
-		const gchar *theirtag, gboolean needsxpidf) {
-	struct simple_watcher *watcher = g_new0(struct simple_watcher, 1);
-	watcher->name = g_strdup(name);
-	watcher->dialog.callid = g_strdup(callid);
-	watcher->dialog.ourtag = g_strdup(ourtag);
-	watcher->dialog.theirtag = g_strdup(theirtag);
-	watcher->needsxpidf = needsxpidf;
-	sip->watcher = g_slist_append(sip->watcher, watcher);
-	return watcher;
-}
-
-static void watcher_remove(struct simple_account_data *sip, const gchar *name) {
-	struct simple_watcher *watcher = watcher_find(sip, name);
-	sip->watcher = g_slist_remove(sip->watcher, watcher);
-	g_free(watcher->name);
-	g_free(watcher->dialog.callid);
-	g_free(watcher->dialog.ourtag);
-	g_free(watcher->dialog.theirtag);
-	g_free(watcher);
-}
-
-static struct sip_connection *connection_create(struct simple_account_data *sip, int fd) {
-	struct sip_connection *ret = g_new0(struct sip_connection, 1);
-	ret->fd = fd;
-	sip->openconns = g_slist_append(sip->openconns, ret);
-	return ret;
-}
-
-static void connection_remove(struct simple_account_data *sip, int fd) {
-	struct sip_connection *conn = connection_find(sip, fd);
-	sip->openconns = g_slist_remove(sip->openconns, conn);
-	if(conn->inputhandler) gaim_input_remove(conn->inputhandler);
-	g_free(conn->inbuf);
-	g_free(conn);
-}
-
-static void connection_free_all(struct simple_account_data *sip) {
-	struct sip_connection *ret = NULL;
-	GSList *entry = sip->openconns;
-	while(entry) {
-		ret = entry->data;
-		connection_remove(sip, ret->fd);
-		entry = sip->openconns;
-	}
-}
-
-static void simple_add_buddy(GaimConnection *gc, GaimBuddy *buddy, GaimGroup *group)
-{
-	struct simple_account_data *sip = (struct simple_account_data *)gc->proto_data;
-	struct simple_buddy *b;
-	if(strncmp("sip:", buddy->name, 4)) {
-		gchar *buf = g_strdup_printf("sip:%s", buddy->name);
-		gaim_blist_rename_buddy(buddy, buf);
-		g_free(buf);
-	}
-	if(!g_hash_table_lookup(sip->buddies, buddy->name)) {
-		b = g_new0(struct simple_buddy, 1);
-		gaim_debug_info("simple", "simple_add_buddy %s\n", buddy->name);
-		b->name = g_strdup(buddy->name);
-		g_hash_table_insert(sip->buddies, b->name, b);
-	} else {
-		gaim_debug_info("simple", "buddy %s already in internal list\n", buddy->name);
-	}
-}
-
-static void simple_get_buddies(GaimConnection *gc) {
-	GaimBlistNode *gnode, *cnode, *bnode;
-
-	gaim_debug_info("simple", "simple_get_buddies\n");
-
-	for(gnode = gaim_get_blist()->root; gnode; gnode = gnode->next) {
-		if(!GAIM_BLIST_NODE_IS_GROUP(gnode)) continue;
-		for(cnode = gnode->child; cnode; cnode = cnode->next) {
-			if(!GAIM_BLIST_NODE_IS_CONTACT(cnode)) continue;
-			for(bnode = cnode->child; bnode; bnode = bnode->next) {
-				if(!GAIM_BLIST_NODE_IS_BUDDY(bnode)) continue;
-				if(((GaimBuddy*)bnode)->account == gc->account)
-					simple_add_buddy(gc, (GaimBuddy*)bnode, (GaimGroup *)gnode);
-			}
-		}
-	}
-}
-
-static void simple_remove_buddy(GaimConnection *gc, GaimBuddy *buddy, GaimGroup *group)
-{
-	struct simple_account_data *sip = (struct simple_account_data *)gc->proto_data;
-	struct simple_buddy *b = g_hash_table_lookup(sip->buddies, buddy->name);
-	g_hash_table_remove(sip->buddies, buddy->name);
-	g_free(b->name);
-	g_free(b);
-}
-
-static GList *simple_status_types(GaimAccount *acc) {
-	GaimStatusType *type;
-	GList *types = NULL;
-
-	type = gaim_status_type_new_with_attrs(
-		GAIM_STATUS_AVAILABLE, NULL, NULL, TRUE, TRUE, FALSE,
-		"message", _("Message"), gaim_value_new(GAIM_TYPE_STRING),
-		NULL);
-	types = g_list_append(types, type);
-
-	type = gaim_status_type_new_full(
-		GAIM_STATUS_OFFLINE, NULL, NULL, TRUE, TRUE, FALSE);
-	types = g_list_append(types, type);
-
-	return types;
-}
-
-static gchar *auth_header(struct simple_account_data *sip,
-		struct sip_auth *auth, const gchar *method, const gchar *target) {
-	gchar noncecount[9];
-	gchar *response;
-	gchar *ret;
-	gchar *tmp;
-	const char *authdomain;
-	const char *authuser;
-
-	authdomain = gaim_account_get_string(sip->account, "authdomain", "");
-	authuser = gaim_account_get_string(sip->account, "authuser", sip->username);
-
-	if(!authuser || strlen(authuser) < 1) {
-		authuser = sip->username;
-	}
-
-	if(auth->type == 1) { /* Digest */
-		sprintf(noncecount, "%08d", auth->nc++);
-		response = gaim_cipher_http_digest_calculate_response(
-							"md5", method, target, NULL, NULL,
-							auth->nonce, noncecount, NULL, auth->digest_session_key);
-		gaim_debug(GAIM_DEBUG_MISC, "simple", "response %s\n", response);
-
-		ret = g_strdup_printf("Digest username=\"%s\", realm=\"%s\", nonce=\"%s\", uri=\"%s\", nc=\"%s\", response=\"%s\"\r\n", authuser, auth->realm, auth->nonce, target, noncecount, response);
-		g_free(response);
-		return ret;
-	} else if(auth->type == 2) { /* NTLM */
-		if(auth->nc == 3 && auth->nonce) {
-			/* TODO: Don't hardcode "gaim" as the hostname */
-			ret = gaim_ntlm_gen_type3(authuser, sip->password, "gaim", authdomain, (const guint8 *)auth->nonce, &auth->flags);
-			tmp = g_strdup_printf("NTLM qop=\"auth\", opaque=\"%s\", realm=\"%s\", targetname=\"%s\", gssapi-data=\"%s\"\r\n", auth->opaque, auth->realm, auth->target, ret);
-			g_free(ret);
-			return tmp;
-		}
-		tmp = g_strdup_printf("NTLM qop=\"auth\", realm=\"%s\", targetname=\"%s\", gssapi-data=\"\"\r\n", auth->realm, auth->target);
-		return tmp;
-	}
-
-	sprintf(noncecount, "%08d", auth->nc++);
-	response = gaim_cipher_http_digest_calculate_response(
-						"md5", method, target, NULL, NULL,
-						auth->nonce, noncecount, NULL, auth->digest_session_key);
-	gaim_debug(GAIM_DEBUG_MISC, "simple", "response %s\n", response);
-
-	ret = g_strdup_printf("Digest username=\"%s\", realm=\"%s\", nonce=\"%s\", uri=\"%s\", nc=\"%s\", response=\"%s\"\r\n", authuser, auth->realm, auth->nonce, target, noncecount, response);
-	g_free(response);
-	return ret;
-}
-
-static char *parse_attribute(const char *attrname, const char *source) {
-	const char *tmp, *tmp2;
-	char *retval = NULL;
-	int len = strlen(attrname);
-
-	if(!strncmp(source, attrname, len)) {
-		tmp = source + len;
-		tmp2 = g_strstr_len(tmp, strlen(tmp), "\"");
-		if(tmp2)
-			retval = g_strndup(tmp, tmp2 - tmp);
-		else
-			retval = g_strdup(tmp);
-	}
-
-	return retval;
-}
-
-static void fill_auth(struct simple_account_data *sip, gchar *hdr, struct sip_auth *auth) {
-	int i = 0;
-	const char *authuser;
-	char *tmp;
-	gchar **parts;
-
-	authuser = gaim_account_get_string(sip->account, "authuser", sip->username);
-
-	if(!authuser || strlen(authuser) < 1) {
-		authuser = sip->username;
-	}
-
-	if(!hdr) {
-		gaim_debug_error("simple", "fill_auth: hdr==NULL\n");
-		return;
-	}
-
-	if(!g_strncasecmp(hdr, "NTLM", 4)) {
-		gaim_debug_info("simple", "found NTLM\n");
-		auth->type = 2;
-		parts = g_strsplit(hdr+5, "\", ", 0);
-		i = 0;
-		while(parts[i]) {
-			gaim_debug_info("simple", "parts[i] %s\n", parts[i]);
-			if((tmp = parse_attribute("gssapi-data=\"", parts[i]))) {
-				auth->nonce = g_memdup(gaim_ntlm_parse_type2(tmp, &auth->flags), 8);
-				g_free(tmp);
-			}
-			if((tmp = parse_attribute("targetname=\"",
-					parts[i]))) {
-				auth->target = tmp;
-			}
-			else if((tmp = parse_attribute("realm=\"",
-					parts[i]))) {
-				auth->realm = tmp;
-			}
-			else if((tmp = parse_attribute("opaque=\"", parts[i]))) {
-				auth->opaque = tmp;
-			}
-			i++;
-		}
-		g_strfreev(parts);
-		auth->nc = 1;
-		if(!strstr(hdr, "gssapi-data")) {
-			auth->nc = 1;
-		} else {
-			auth->nc = 3;
-                }
-		return;
-	}
-
-	auth->type = 1;
-	parts = g_strsplit(hdr, " ", 0);
-	while(parts[i]) {
-		if((tmp = parse_attribute("nonce=\"", parts[i]))) {
-			auth->nonce = tmp;
-		}
-		else if((tmp = parse_attribute("realm=\"", parts[i]))) {
-			auth->realm = tmp;
-		}
-		i++;
-	}
-	g_strfreev(parts);
-
-	gaim_debug(GAIM_DEBUG_MISC, "simple", "nonce: %s realm: %s\n", auth->nonce ? auth->nonce : "(null)", auth->realm ? auth->realm : "(null)");
-	if(auth->realm) {
-		auth->digest_session_key = gaim_cipher_http_digest_calculate_session_key(
-				"md5", authuser, auth->realm, sip->password, auth->nonce, NULL);
-
-		auth->nc = 1;
-	}
-}
-
-static void simple_canwrite_cb(gpointer data, gint source, GaimInputCondition cond) {
-	GaimConnection *gc = data;
-	struct simple_account_data *sip = gc->proto_data;
-	gsize max_write;
-	gssize written;
-
-	max_write = gaim_circ_buffer_get_max_read(sip->txbuf);
-
-	if(max_write == 0) {
-		gaim_input_remove(sip->tx_handler);
-		sip->tx_handler = 0;
-		return;
-	}
-
-	written = write(sip->fd, sip->txbuf->outptr, max_write);
-
-	if(written < 0 && errno == EAGAIN)
-		written = 0;
-	else if(written <= 0) {
-		/*TODO: do we really want to disconnect on a failure to write?*/
-		gaim_connection_error(gc, _("Could not write"));
-		return;
-	}
-
-	gaim_circ_buffer_mark_read(sip->txbuf, written);
-}
-
-static void simple_input_cb(gpointer data, gint source, GaimInputCondition cond);
-
-static void send_later_cb(gpointer data, gint source, const gchar *error) {
-	GaimConnection *gc = data;
-	struct simple_account_data *sip;
-	struct sip_connection *conn;
-
-	if (!GAIM_CONNECTION_IS_VALID(gc))
-	{
-		if (source >= 0)
-			close(source);
-		return;
-	}
-
-	if(source < 0) {
-		gaim_connection_error(gc, _("Could not connect"));
-		return;
-	}
-
-	sip = gc->proto_data;
-	sip->fd = source;
-	sip->connecting = FALSE;
-
-	simple_canwrite_cb(gc, sip->fd, GAIM_INPUT_WRITE);
-
-	/* If there is more to write now, we need to register a handler */
-	if(sip->txbuf->bufused > 0)
-		sip->tx_handler = gaim_input_add(sip->fd, GAIM_INPUT_WRITE,
-			simple_canwrite_cb, gc);
-
-	conn = connection_create(sip, source);
-	conn->inputhandler = gaim_input_add(sip->fd, GAIM_INPUT_READ, simple_input_cb, gc);
-}
-
-
-static void sendlater(GaimConnection *gc, const char *buf) {
-	struct simple_account_data *sip = gc->proto_data;
-	GaimProxyConnectInfo *connect_info;
-
-	if(!sip->connecting) {
-		gaim_debug_info("simple", "connecting to %s port %d\n", sip->realhostname ? sip->realhostname : "{NULL}", sip->realport);
-		connect_info = gaim_proxy_connect(sip->account, sip->realhostname, sip->realport, send_later_cb, gc);
-		if(connect_info == NULL) {
-			gaim_connection_error(gc, _("Couldn't create socket"));
-		}
-		sip->connecting = TRUE;
-	}
-
-	if(gaim_circ_buffer_get_max_read(sip->txbuf) > 0)
-		gaim_circ_buffer_append(sip->txbuf, "\r\n", 2);
-
-	gaim_circ_buffer_append(sip->txbuf, buf, strlen(buf));
-}
-
-static void sendout_pkt(GaimConnection *gc, const char *buf) {
-	struct simple_account_data *sip = gc->proto_data;
-	time_t currtime = time(NULL);
-	int writelen = strlen(buf);
-
-	gaim_debug(GAIM_DEBUG_MISC, "simple", "\n\nsending - %s\n######\n%s\n######\n\n", ctime(&currtime), buf);
-	if(sip->udp) {
-		if(sendto(sip->fd, buf, writelen, 0, (struct sockaddr*)&sip->serveraddr, sizeof(struct sockaddr_in)) < writelen) {
-			gaim_debug_info("simple", "could not send packet\n");
-		}
-	} else {
-		int ret;
-		if(sip->fd < 0) {
-			sendlater(gc, buf);
-			return;
-		}
-
-		if(sip->tx_handler) {
-			ret = -1;
-			errno = EAGAIN;
-		} else
-			ret = write(sip->fd, buf, writelen);
-
-		if (ret < 0 && errno == EAGAIN)
-			ret = 0;
-		else if(ret <= 0) { /* XXX: When does this happen legitimately? */
-			sendlater(gc, buf);
-			return;
-		}
-
-		if (ret < writelen) {
-			if(!sip->tx_handler)
-				sip->tx_handler = gaim_input_add(sip->fd,
-					GAIM_INPUT_WRITE, simple_canwrite_cb,
-					gc);
-
-			/* XXX: is it OK to do this? You might get part of a request sent
-			   with part of another. */
-			if(sip->txbuf->bufused > 0)
-				gaim_circ_buffer_append(sip->txbuf, "\r\n", 2);
-
-			gaim_circ_buffer_append(sip->txbuf, buf + ret,
-				writelen - ret);
-		}
-	}
-}
-
-static void sendout_sipmsg(struct simple_account_data *sip, struct sipmsg *msg) {
-	GSList *tmp = msg->headers;
-	gchar *name;
-	gchar *value;
-	GString *outstr = g_string_new("");
-	g_string_append_printf(outstr, "%s %s SIP/2.0\r\n", msg->method, msg->target);
-	while(tmp) {
-		name = ((struct siphdrelement*) (tmp->data))->name;
-		value = ((struct siphdrelement*) (tmp->data))->value;
-		g_string_append_printf(outstr, "%s: %s\r\n", name, value);
-		tmp = g_slist_next(tmp);
-	}
-	g_string_append_printf(outstr, "\r\n%s", msg->body ? msg->body : "");
-	sendout_pkt(sip->gc, outstr->str);
-	g_string_free(outstr, TRUE);
-}
-
-static void send_sip_response(GaimConnection *gc, struct sipmsg *msg, int code,
-		const char *text, const char *body) {
-	GSList *tmp = msg->headers;
-	gchar *name;
-	gchar *value;
-	GString *outstr = g_string_new("");
-
-	/* When sending the acknowlegements and errors, the content length from the original
-	   message is still here, but there is no body; we need to make sure we're sending the
-	   correct content length */
-	sipmsg_remove_header(msg, "Content-Length");
-	if(body) {
-		gchar len[12];
-		sprintf(len, "%" G_GSIZE_FORMAT , strlen(body));
-		sipmsg_add_header(msg, "Content-Length", len);
-	}
-	else
-		sipmsg_add_header(msg, "Content-Length", "0");
-	g_string_append_printf(outstr, "SIP/2.0 %d %s\r\n", code, text);
-	while(tmp) {
-		name = ((struct siphdrelement*) (tmp->data))->name;
-		value = ((struct siphdrelement*) (tmp->data))->value;
-
-		g_string_append_printf(outstr, "%s: %s\r\n", name, value);
-		tmp = g_slist_next(tmp);
-	}
-	g_string_append_printf(outstr, "\r\n%s", body ? body : "");
-	sendout_pkt(gc, outstr->str);
-	g_string_free(outstr, TRUE);
-}
-
-static void transactions_remove(struct simple_account_data *sip, struct transaction *trans) {
-	if(trans->msg) sipmsg_free(trans->msg);
-	sip->transactions = g_slist_remove(sip->transactions, trans);
-	g_free(trans);
-}
-
-static void transactions_add_buf(struct simple_account_data *sip, const gchar *buf, void *callback) {
-	struct transaction *trans = g_new0(struct transaction, 1);
-	trans->time = time(NULL);
-	trans->msg = sipmsg_parse_msg(buf);
-	trans->cseq = sipmsg_find_header(trans->msg, "CSeq");
-	trans->callback = callback;
-	sip->transactions = g_slist_append(sip->transactions, trans);
-}
-
-static struct transaction *transactions_find(struct simple_account_data *sip, struct sipmsg *msg) {
-	struct transaction *trans;
-	GSList *transactions = sip->transactions;
-	gchar *cseq = sipmsg_find_header(msg, "CSeq");
-
-	while(transactions) {
-		trans = transactions->data;
-		if(!strcmp(trans->cseq, cseq)) {
-			return trans;
-		}
-		transactions = transactions->next;
-	}
-
-	return NULL;
-}
-
-static void send_sip_request(GaimConnection *gc, const gchar *method,
-		const gchar *url, const gchar *to, const gchar *addheaders,
-		const gchar *body, struct sip_dialog *dialog, TransCallback tc) {
-	struct simple_account_data *sip = gc->proto_data;
-	char *callid = dialog ? g_strdup(dialog->callid) : gencallid();
-	char *auth = NULL;
-	const char *addh = "";
-	gchar *branch = genbranch();
-	gchar *tag = NULL;
-	char *buf;
-
-	if(!strcmp(method, "REGISTER")) {
-		if(sip->regcallid) {
-			g_free(callid);
-			callid = g_strdup(sip->regcallid);
-		}
-		else sip->regcallid = g_strdup(callid);
-	}
-
-	if(addheaders) addh = addheaders;
-	if(sip->registrar.type && !strcmp(method, "REGISTER")) {
-		buf = auth_header(sip, &sip->registrar, method, url);
-		auth = g_strdup_printf("Authorization: %s", buf);
-		g_free(buf);
-		gaim_debug(GAIM_DEBUG_MISC, "simple", "header %s", auth);
-	}
-
-	if(sip->proxy.type && strcmp(method, "REGISTER")) {
-		buf = auth_header(sip, &sip->proxy, method, url);
-		auth = g_strdup_printf("Proxy-Authorization: %s", buf);
-		g_free(buf);
-		gaim_debug(GAIM_DEBUG_MISC, "simple", "header %s", auth);
-	}
-
-	if (!dialog)
-		tag = gentag();
-
-	buf = g_strdup_printf("%s %s SIP/2.0\r\n"
-			"Via: SIP/2.0/%s %s:%d;branch=%s\r\n"
-			/* Don't know what epid is, but LCS wants it */
-			"From: <sip:%s@%s>;tag=%s;epid=1234567890\r\n"
-			"To: <%s>%s%s\r\n"
-			"Max-Forwards: 10\r\n"
-			"CSeq: %d %s\r\n"
-			"User-Agent: Gaim/" VERSION "\r\n"
-			"Call-ID: %s\r\n"
-			"%s%s"
-			"Content-Length: %" G_GSIZE_FORMAT "\r\n\r\n%s",
-			method,
-			url,
-			sip->udp ? "UDP" : "TCP",
-			gaim_network_get_my_ip(-1),
-			sip->listenport,
-			branch,
-			sip->username,
-			sip->servername,
-			dialog ? dialog->ourtag : tag,
-			to,
-			dialog ? ";tag=" : "",
-			dialog ? dialog->theirtag : "",
-			++sip->cseq,
-			method,
-			callid,
-			auth ? auth : "",
-			addh,
-			strlen(body),
-			body);
-
-	g_free(tag);
-	g_free(auth);
-	g_free(branch);
-	g_free(callid);
-
-	/* add to ongoing transactions */
-
-	transactions_add_buf(sip, buf, tc);
-
-	sendout_pkt(gc, buf);
-
-	g_free(buf);
-}
-
-static char *get_contact(struct simple_account_data  *sip) {
-	return g_strdup_printf("<sip:%s@%s:%d;transport=%s>;methods=\"MESSAGE, SUBSCRIBE, NOTIFY\"", sip->username, gaim_network_get_my_ip(-1), sip->listenport, sip->udp ? "udp" : "tcp");
-}
-
-static void do_register_exp(struct simple_account_data *sip, int expire) {
-	char *uri = g_strdup_printf("sip:%s", sip->servername);
-	char *to = g_strdup_printf("sip:%s@%s", sip->username, sip->servername);
-	char *contact = get_contact(sip);
-	char *hdr = g_strdup_printf("Contact: %s\r\nExpires: %d\r\n", contact, expire);
-	g_free(contact);
-
-	sip->registerstatus = 1;
-
-	if(expire) {
-		sip->reregister = time(NULL) + expire - 50;
-	} else {
-		sip->reregister = time(NULL) + 600;
-	}
-
-	send_sip_request(sip->gc, "REGISTER", uri, to, hdr, "", NULL,
-		process_register_response);
-
-	g_free(hdr);
-	g_free(uri);
-	g_free(to);
-}
-
-static void do_register(struct simple_account_data *sip) {
-	do_register_exp(sip, sip->registerexpire);
-}
-
-static gchar *parse_from(const gchar *hdr) {
-	gchar *from;
-	const gchar *tmp, *tmp2 = hdr;
-
-	if(!hdr) return NULL;
-	gaim_debug_info("simple", "parsing address out of %s\n", hdr);
-	tmp = strchr(hdr, '<');
-
-	/* i hate the different SIP UA behaviours... */
-	if(tmp) { /* sip address in <...> */
-		tmp2 = tmp + 1;
-		tmp = strchr(tmp2, '>');
-		if(tmp) {
-			from = g_strndup(tmp2, tmp - tmp2);
-		} else {
-			gaim_debug_info("simple", "found < without > in From\n");
-			return NULL;
-		}
-	} else {
-		tmp = strchr(tmp2, ';');
-		if(tmp) {
-			from = g_strndup(tmp2, tmp - tmp2);
-		} else {
-			from = g_strdup(tmp2);
-		}
-	}
-	gaim_debug_info("simple", "got %s\n", from);
-	return from;
-}
-
-static gboolean process_subscribe_response(struct simple_account_data *sip, struct sipmsg *msg, struct transaction *tc) {
-	gchar *to;
-
-	if(msg->response == 200 || msg->response == 202) {
-		return TRUE;
-	}
-
-	to = parse_from(sipmsg_find_header(tc->msg, "To")); /* cant be NULL since it is our own msg */
-
-	/* we can not subscribe -> user is offline (TODO unknown status?) */
-
-	gaim_prpl_got_user_status(sip->account, to, "offline", NULL);
-	g_free(to);
-	return TRUE;
-}
-
-static void simple_subscribe(struct simple_account_data *sip, struct simple_buddy *buddy) {
-	gchar *contact = "Expires: 1200\r\nAccept: application/pidf+xml, application/xpidf+xml\r\nEvent: presence\r\n";
-	gchar *to;
-	gchar *tmp;
-
-	if(strstr(buddy->name, "sip:"))
-		to = g_strdup(buddy->name);
-	else
-		to = g_strdup_printf("sip:%s", buddy->name);
-
-	tmp = get_contact(sip);
-	contact = g_strdup_printf("%sContact: %s\r\n", contact, tmp);
-	g_free(tmp);
-
-	/* subscribe to buddy presence
-	 * we dont need to know the status so we do not need a callback */
-
-	send_sip_request(sip->gc, "SUBSCRIBE", to, to, contact, "", NULL,
-		process_subscribe_response);
-
-	g_free(to);
-	g_free(contact);
-
-	/* resubscribe before subscription expires */
-	/* add some jitter */
-	buddy->resubscribe = time(NULL)+1140+(rand()%50);
-}
-
-static gboolean simple_add_lcs_contacts(struct simple_account_data *sip, struct sipmsg *msg, struct transaction *tc) {
-	gchar *tmp;
-	xmlnode *item, *group, *isc;
-	const char *name_group;
-	GaimBuddy *b;
-	GaimGroup *g = NULL;
-	struct simple_buddy *bs;
-	int len = msg->bodylen;
-
-
-	tmp = sipmsg_find_header(msg, "Event");
-	if(tmp && !strncmp(tmp, "vnd-microsoft-roaming-contacts", 30)){
-
-		gaim_debug_info("simple", "simple_add_lcs_contacts->%s-%d\n", msg->body, len);
-		/*Convert the contact from XML to Gaim Buddies*/
-		isc = xmlnode_from_str(msg->body, len);
-
-		/* ToDo. Find for all groups */
-		if ((group = xmlnode_get_child(isc, "group"))) {
-			name_group = xmlnode_get_attrib(group, "name");
-			gaim_debug_info("simple", "name_group->%s\n", name_group);
-			g = gaim_find_group(name_group);
-			if(!g)
-				g = gaim_group_new(name_group);
-		}
-
-		if (!g) {
-			g = gaim_find_group("Buddies");
-			if(!g)
-				g = gaim_group_new("Buddies");
-		}
-
-		for(item = xmlnode_get_child(isc, "contact"); item; item = xmlnode_get_next_twin(item))
-		{
-			const char *uri, *name, *groups;
-			char *buddy_name;
-			uri = xmlnode_get_attrib(item, "uri");
-			name = xmlnode_get_attrib(item, "name");
-			groups = xmlnode_get_attrib(item, "groups");
-			gaim_debug_info("simple", "URI->%s\n", uri);
-
-			buddy_name = g_strdup_printf("sip:%s", uri);
-
-			b = gaim_find_buddy(sip->account, buddy_name);
-			if(!b){
-				b = gaim_buddy_new(sip->account, buddy_name, uri);
-			}
-			g_free(buddy_name);
-
-			gaim_blist_add_buddy(b, NULL, g, NULL);
-			gaim_blist_alias_buddy(b, uri);
-			bs = g_new0(struct simple_buddy, 1);
-			bs->name = g_strdup(b->name);
-			g_hash_table_insert(sip->buddies, bs->name, bs);
-		}
-		xmlnode_free(isc);
-	}
-	return 0;
-}
-
-static void simple_subscribe_buddylist(struct simple_account_data *sip) {
-	gchar *contact = "Event: vnd-microsoft-roaming-contacts\r\nAccept: application/vnd-microsoft-roaming-contacts+xml\r\nSupported: com.microsoft.autoextend\r\nSupported: ms-benotify\r\nProxy-Require: ms-benotify\r\nSupported: ms-piggyback-first-notify\r\n";
-	gchar *to;
-	gchar *tmp;
-	to = g_strdup_printf("sip:%s@%s", sip->username, sip->servername);
-
-	tmp = get_contact(sip);
-
-	contact = g_strdup_printf("%sContact: %s\r\n", contact, tmp);
-	g_free(tmp);
-
-	send_sip_request(sip->gc, "SUBSCRIBE", to, to, contact, "", NULL, simple_add_lcs_contacts);
-
-	g_free(to);
-	g_free(contact);
-}
-
-
-static void simple_buddy_resub(char *name, struct simple_buddy *buddy, struct simple_account_data *sip) {
-	time_t curtime = time(NULL);
-	gaim_debug_info("simple", "buddy resub\n");
-	if(buddy->resubscribe < curtime) {
-		gaim_debug(GAIM_DEBUG_MISC, "simple", "simple_buddy_resub %s\n", name);
-		simple_subscribe(sip, buddy);
-	}
-}
-
-static gboolean resend_timeout(struct simple_account_data *sip) {
-	GSList *tmp = sip->transactions;
-	time_t currtime = time(NULL);
-	while(tmp) {
-		struct transaction *trans = tmp->data;
-		tmp = tmp->next;
-		gaim_debug_info("simple", "have open transaction age: %d\n", currtime- trans->time);
-		if((currtime - trans->time > 5) && trans->retries >= 1) {
-			/* TODO 408 */
-		} else {
-			if((currtime - trans->time > 2) && trans->retries == 0) {
-				trans->retries++;
-				sendout_sipmsg(sip, trans->msg);
-			}
-		}
-	}
-	return TRUE;
-}
-
-static gboolean subscribe_timeout(struct simple_account_data *sip) {
-	GSList *tmp;
-	time_t curtime = time(NULL);
-	/* register again if first registration expires */
-	if(sip->reregister < curtime) {
-		do_register(sip);
-	}
-	/* check for every subscription if we need to resubscribe */
-	g_hash_table_foreach(sip->buddies, (GHFunc)simple_buddy_resub, (gpointer)sip);
-
-	/* remove a timed out suscriber */
-
-	tmp = sip->watcher;
-	while(tmp) {
-		struct simple_watcher *watcher = tmp->data;
-		if(watcher->expire < curtime) {
-			watcher_remove(sip, watcher->name);
-			tmp = sip->watcher;
-		}
-		if(tmp) tmp = tmp->next;
-	}
-
-	return TRUE;
-}
-
-static void simple_send_message(struct simple_account_data *sip, const char *to, const char *msg, const char *type) {
-	gchar *hdr;
-	gchar *fullto;
-	if(strncmp("sip:", to, 4)) {
-		fullto = g_strdup_printf("sip:%s", to);
-	} else {
-		fullto = g_strdup(to);
-	}
-	if(type) {
-		hdr = g_strdup_printf("Content-Type: %s\r\n", type);
-	} else {
-		hdr = g_strdup("Content-Type: text/plain\r\n");
-	}
-	send_sip_request(sip->gc, "MESSAGE", fullto, fullto, hdr, msg, NULL, NULL);
-	g_free(hdr);
-	g_free(fullto);
-}
-
-static int simple_im_send(GaimConnection *gc, const char *who, const char *what, GaimMessageFlags flags) {
-	struct simple_account_data *sip = gc->proto_data;
-	char *to = g_strdup(who);
-	char *text = gaim_unescape_html(what);
-	simple_send_message(sip, to, text, NULL);
-	g_free(to);
-	g_free(text);
-	return 1;
-}
-
-static void process_incoming_message(struct simple_account_data *sip, struct sipmsg *msg) {
-	gchar *from;
-	gchar *contenttype;
-	gboolean found = FALSE;
-
-	from = parse_from(sipmsg_find_header(msg, "From"));
-
-	if(!from) return;
-
-	gaim_debug(GAIM_DEBUG_MISC, "simple", "got message from %s: %s\n", from, msg->body);
-
-	contenttype = sipmsg_find_header(msg, "Content-Type");
-	if(!contenttype || !strncmp(contenttype, "text/plain", 10) || !strncmp(contenttype, "text/html", 9)) {
-		serv_got_im(sip->gc, from, msg->body, 0, time(NULL));
-		send_sip_response(sip->gc, msg, 200, "OK", NULL);
-		found = TRUE;
-	}
-	if(!strncmp(contenttype, "application/im-iscomposing+xml", 30)) {
-		xmlnode *isc = xmlnode_from_str(msg->body, msg->bodylen);
-		xmlnode *state;
-		gchar *statedata;
-
-		if(!isc) {
-			gaim_debug_info("simple", "process_incoming_message: can not parse iscomposing\n");
-			return;
-		}
-
-		state = xmlnode_get_child(isc, "state");
-
-		if(!state) {
-			gaim_debug_info("simple", "process_incoming_message: no state found\n");
-			xmlnode_free(isc);
-			return;
-		}
-
-		statedata = xmlnode_get_data(state);
-		if(statedata) {
-			if(strstr(statedata, "active")) serv_got_typing(sip->gc, from, 0, GAIM_TYPING);
-			else serv_got_typing_stopped(sip->gc, from);
-
-			g_free(statedata);
-		}
-		xmlnode_free(isc);
-		send_sip_response(sip->gc, msg, 200, "OK", NULL);
-		found = TRUE;
-	}
-	if(!found) {
-		gaim_debug_info("simple", "got unknown mime-type");
-		send_sip_response(sip->gc, msg, 415, "Unsupported media type", NULL);
-	}
-	g_free(from);
-}
-
-
-gboolean process_register_response(struct simple_account_data *sip, struct sipmsg *msg, struct transaction *tc) {
-	gchar *tmp;
-	gaim_debug(GAIM_DEBUG_MISC, "simple", "in process register response response: %d\n", msg->response);
-	switch (msg->response) {
-		case 200:
-			if(sip->registerstatus < 3) { /* registered */
-				if(gaim_account_get_bool(sip->account, "dopublish", TRUE)) {
-					send_publish(sip);
-				}
-			}
-			sip->registerstatus = 3;
-			gaim_connection_set_state(sip->gc, GAIM_CONNECTED);
-
-			/* get buddies from blist */
-			simple_get_buddies(sip->gc);
-
-			subscribe_timeout(sip);
-			tmp = sipmsg_find_header(msg, "Allow-Events");
-		        if(tmp && strstr(tmp, "vnd-microsoft-provisioning")){
-				simple_subscribe_buddylist(sip);
-			}
-
-			break;
-		case 401:
-			if(sip->registerstatus != 2) {
-				gaim_debug_info("simple", "REGISTER retries %d\n", sip->registrar.retries);
-				if(sip->registrar.retries > 3) {
-					sip->gc->wants_to_die = TRUE;
-					gaim_connection_error(sip->gc, _("Wrong Password"));
-					return TRUE;
-				}
-				tmp = sipmsg_find_header(msg, "WWW-Authenticate");
-				fill_auth(sip, tmp, &sip->registrar);
-				sip->registerstatus = 2;
-				do_register(sip);
-			}
-			break;
-		}
-	return TRUE;
-}
-
-static void process_incoming_notify(struct simple_account_data *sip, struct sipmsg *msg) {
-	gchar *from;
-	gchar *fromhdr;
-	gchar *tmp2;
-	xmlnode *pidf;
-	xmlnode *basicstatus = NULL, *tuple, *status;
-	gboolean isonline = FALSE;
-
-	fromhdr = sipmsg_find_header(msg, "From");
-	from = parse_from(fromhdr);
-	if(!from) return;
-
-	pidf = xmlnode_from_str(msg->body, msg->bodylen);
-
-	if(!pidf) {
-		gaim_debug_info("simple", "process_incoming_notify: no parseable pidf\n");
-		return;
-	}
-
-	if ((tuple = xmlnode_get_child(pidf, "tuple")))
-		if ((status = xmlnode_get_child(tuple, "status")))
-			basicstatus = xmlnode_get_child(status, "basic");
-
-	if(!basicstatus) {
-		gaim_debug_info("simple", "process_incoming_notify: no basic found\n");
-		xmlnode_free(pidf);
-		return;
-	}
-
-	tmp2 = xmlnode_get_data(basicstatus);
-
-	if(!tmp2) {
-		gaim_debug_info("simple", "process_incoming_notify: no basic data found\n");
-		xmlnode_free(pidf);
-		return;
-	}
-
-	if(strstr(tmp2, "open")) {
-		isonline = TRUE;
-	}
-
-	g_free(tmp2);
-
-	if(isonline) gaim_prpl_got_user_status(sip->account, from, "available", NULL);
-	else gaim_prpl_got_user_status(sip->account, from, "offline", NULL);
-
-	xmlnode_free(pidf);
-
-	g_free(from);
-	send_sip_response(sip->gc, msg, 200, "OK", NULL);
-}
-
-static unsigned int simple_typing(GaimConnection *gc, const char *name, GaimTypingState state) {
-	struct simple_account_data *sip = gc->proto_data;
-
-	gchar *xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
-			"<isComposing xmlns=\"urn:ietf:params:xml:ns:im-iscomposing\"\n"
-			"xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
-			"xsi:schemaLocation=\"urn:ietf:params:xml:ns:im-composing iscomposing.xsd\">\n"
-			"<state>%s</state>\n"
-			"<contenttype>text/plain</contenttype>\n"
-			"<refresh>60</refresh>\n"
-			"</isComposing>";
-	gchar *recv = g_strdup(name);
-	if(state == GAIM_TYPING) {
-		gchar *msg = g_strdup_printf(xml, "active");
-		simple_send_message(sip, recv, msg, "application/im-iscomposing+xml");
-		g_free(msg);
-	} else /* TODO: Only if (state == GAIM_TYPED) ? */ {
-		gchar *msg = g_strdup_printf(xml, "idle");
-		simple_send_message(sip, recv, msg, "application/im-iscomposing+xml");
-		g_free(msg);
-	}
-	g_free(recv);
-	/*
-	 * TODO: Is this right?  It will cause the core to call
-	 *       serv_send_typing(gc, who, GAIM_TYPING) once every second
-	 *       until the user stops typing.  If that's not desired,
-	 *       then return 0 instead.
-	 */
-	return 1;
-}
-
-static gchar *find_tag(const gchar *hdr) {
-	const gchar *tmp = strstr(hdr, ";tag="), *tmp2;
-
-	if(!tmp) return NULL;
-	tmp += 5;
-	if((tmp2 = strchr(tmp, ';'))) {
-		return g_strndup(tmp, tmp2 - tmp);
-	}
-	return g_strdup(tmp);
-}
-
-static gchar* gen_xpidf(struct simple_account_data *sip) {
-	gchar *doc = g_strdup_printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
-			"<presence>\n"
-			"<presentity uri=\"sip:%s@%s;method=SUBSCRIBE\"/>\n"
-			"<display name=\"sip:%s@%s\"/>\n"
-			"<atom id=\"1234\">\n"
-			"<address uri=\"sip:%s@%s\">\n"
-			"<status status=\"%s\"/>\n"
-			"</address>\n"
-			"</atom>\n"
-			"</presence>\n",
-			sip->username,
-			sip->servername,
-			sip->username,
-			sip->servername,
-			sip->username,
-			sip->servername,
-			sip->status);
-	return doc;
-}
-
-
-
-static gchar* gen_pidf(struct simple_account_data *sip) {
-	gchar *doc = g_strdup_printf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
-			"<presence xmlns=\"urn:ietf:params:xml:ns:pidf\"\n"
-			"xmlns:im=\"urn:ietf:params:xml:ns:pidf:im\"\n"
-			"entity=\"sip:%s@%s\">\n"
-			"<tuple id=\"bs35r9f\">\n"
-			"<status>\n"
-			"<basic>open</basic>\n"
-			"</status>\n"
-			"<note>%s</note>\n"
-			"</tuple>\n"
-			"</presence>",
-			sip->username,
-			sip->servername,
-			sip->status);
-	return doc;
-}
-
-static void send_notify(struct simple_account_data *sip, struct simple_watcher *watcher) {
-	gchar *doc = watcher->needsxpidf ? gen_xpidf(sip) : gen_pidf(sip);
-	gchar *hdr = watcher->needsxpidf ? "Event: presence\r\nContent-Type: application/xpidf+xml\r\n" : "Event: presence\r\nContent-Type: application/pidf+xml\r\n";
-	send_sip_request(sip->gc, "NOTIFY", watcher->name, watcher->name, hdr, doc, &watcher->dialog, NULL);
-	g_free(doc);
-}
-
-static gboolean process_publish_response(struct simple_account_data *sip, struct sipmsg *msg, struct transaction *tc) {
-	if(msg->response != 200 && msg->response != 408) {
-		/* never send again */
-		sip->republish = -1;
-	}
-	return TRUE;
-}
-
-static void send_publish(struct simple_account_data *sip) {
-	gchar *uri = g_strdup_printf("sip:%s@%s", sip->username, sip->servername);
-	gchar *doc = gen_pidf(sip);
-	send_sip_request(sip->gc, "PUBLISH", uri, uri,
-		"Expires: 600\r\nEvent: presence\r\n"
-		"Content-Type: application/pidf+xml\r\n",
-		doc, NULL, process_publish_response);
-	sip->republish = time(NULL) + 500;
-	g_free(uri);
-	g_free(doc);
-}
-
-static void process_incoming_subscribe(struct simple_account_data *sip, struct sipmsg *msg) {
-	const char *from_hdr = sipmsg_find_header(msg, "From");
-	gchar *from = parse_from(from_hdr);
-	gchar *theirtag = find_tag(from_hdr);
-	gchar *ourtag = find_tag(sipmsg_find_header(msg, "To"));
-	gboolean tagadded = FALSE;
-	gchar *callid = sipmsg_find_header(msg, "Call-ID");
-	gchar *expire = sipmsg_find_header(msg, "Expire");
-	gchar *tmp;
-	struct simple_watcher *watcher = watcher_find(sip, from);
-	if(!ourtag) {
-		tagadded = TRUE;
-		ourtag = gentag();
-	}
-	if(!watcher) { /* new subscription */
-		gchar *acceptheader = sipmsg_find_header(msg, "Accept");
-		gboolean needsxpidf = FALSE;
-		if(!gaim_privacy_check(sip->account, from)) {
-			send_sip_response(sip->gc, msg, 202, "Ok", NULL);
-			goto privend;
-		}
-		if(acceptheader) {
-			gchar *tmp = acceptheader;
-			gboolean foundpidf = FALSE;
-			gboolean foundxpidf = FALSE;
-			while(tmp && tmp < acceptheader + strlen(acceptheader)) {
-				gchar *tmp2 = strchr(tmp, ',');
-				if(tmp2) *tmp2 = '\0';
-				if(!strcmp("application/pidf+xml", tmp))
-					foundpidf = TRUE;
-				if(!strcmp("application/xpidf+xml", tmp))
-					foundxpidf = TRUE;
-				if(tmp2) {
-					*tmp2 = ',';
-					tmp = tmp2;
-					while(*tmp == ' ') tmp++;
-				} else
-					tmp = 0;
-			}
-			if(!foundpidf && foundxpidf) needsxpidf = TRUE;
-			g_free(acceptheader);
-		}
-		watcher = watcher_create(sip, from, callid, ourtag, theirtag, needsxpidf);
-	}
-	if(tagadded) {
-		gchar *to = g_strdup_printf("%s;tag=%s", sipmsg_find_header(msg, "To"), ourtag);
-		sipmsg_remove_header(msg, "To");
-		sipmsg_add_header(msg, "To", to);
-		g_free(to);
-	}
-	if(expire)
-		watcher->expire = time(NULL) + strtol(expire, NULL, 10);
-	else
-		watcher->expire = time(NULL) + 600;
-	sipmsg_remove_header(msg, "Contact");
-	tmp = get_contact(sip);
-	sipmsg_add_header(msg, "Contact", tmp);
-	g_free(tmp);
-	gaim_debug_info("simple", "got subscribe: name %s ourtag %s theirtag %s callid %s\n", watcher->name, watcher->dialog.ourtag, watcher->dialog.theirtag, watcher->dialog.callid);
-	send_sip_response(sip->gc, msg, 200, "Ok", NULL);
-	send_notify(sip, watcher);
-privend:
-	g_free(from);
-	g_free(theirtag);
-	g_free(ourtag);
-	g_free(callid);
-	g_free(expire);
-}
-
-static void process_input_message(struct simple_account_data *sip, struct sipmsg *msg) {
-	gboolean found = FALSE;
-	if(msg->response == 0) { /* request */
-		if(!strcmp(msg->method, "MESSAGE")) {
-			process_incoming_message(sip, msg);
-			found = TRUE;
-		} else if(!strcmp(msg->method, "NOTIFY")) {
-			process_incoming_notify(sip, msg);
-			found = TRUE;
-		} else if(!strcmp(msg->method, "SUBSCRIBE")) {
-			process_incoming_subscribe(sip, msg);
-			found = TRUE;
-		} else {
-			send_sip_response(sip->gc, msg, 501, "Not implemented", NULL);
-		}
-	} else { /* response */
-		struct transaction *trans = transactions_find(sip, msg);
-		if(trans) {
-			if(msg->response == 407) {
-				gchar *resend, *auth, *ptmp;
-
-				if(sip->proxy.retries > 3) return;
-				sip->proxy.retries++;
-				/* do proxy authentication */
-
-				ptmp = sipmsg_find_header(msg, "Proxy-Authenticate");
-
-				fill_auth(sip, ptmp, &sip->proxy);
-				auth = auth_header(sip, &sip->proxy, trans->msg->method, trans->msg->target);
-				sipmsg_remove_header(trans->msg, "Proxy-Authorization");
-				sipmsg_add_header(trans->msg, "Proxy-Authorization", auth);
-				g_free(auth);
-				resend = sipmsg_to_string(trans->msg);
-				/* resend request */
-				sendout_pkt(sip->gc, resend);
-				g_free(resend);
-			} else {
-				if(msg->response == 100) {
-					/* ignore provisional response */
-					gaim_debug_info("simple", "got trying response\n");
-				} else {
-					sip->proxy.retries = 0;
-					if(!strcmp(trans->msg->method, "REGISTER")) {
-						if(msg->response == 401) sip->registrar.retries++;
-						else sip->registrar.retries = 0;
-					} else {
-						if(msg->response == 401) {
-							gchar *resend, *auth, *ptmp;
-
-							if(sip->registrar.retries > 4) return;
-							sip->registrar.retries++;
-
-							ptmp = sipmsg_find_header(msg, "WWW-Authenticate");
-
-							fill_auth(sip, ptmp, &sip->registrar);
-							auth = auth_header(sip, &sip->registrar, trans->msg->method, trans->msg->target);
-							sipmsg_remove_header(trans->msg, "Authorization");
-							sipmsg_add_header(trans->msg, "Authorization", auth);
-							g_free(auth);
-							resend = sipmsg_to_string(trans->msg);
-							/* resend request */
-							sendout_pkt(sip->gc, resend);
-							g_free(resend);
-						}
-					}
-					if(trans->callback) {
-						/* call the callback to process response*/
-						(trans->callback)(sip, msg, trans);
-					}
-					transactions_remove(sip, trans);
-				}
-			}
-			found = TRUE;
-		} else {
-			gaim_debug(GAIM_DEBUG_MISC, "simple", "received response to unknown transaction");
-		}
-	}
-	if(!found) {
-		gaim_debug(GAIM_DEBUG_MISC, "simple", "received a unknown sip message with method %s and response %d\n", msg->method, msg->response);
-	}
-}
-
-static void process_input(struct simple_account_data *sip, struct sip_connection *conn)
-{
-	char *cur;
-	char *dummy;
-	struct sipmsg *msg;
-	int restlen;
-	cur = conn->inbuf;
-
-	/* according to the RFC remove CRLF at the beginning */
-	while(*cur == '\r' || *cur == '\n') {
-		cur++;
-	}
-	if(cur != conn->inbuf) {
-		memmove(conn->inbuf, cur, conn->inbufused - (cur - conn->inbuf));
-		conn->inbufused = strlen(conn->inbuf);
-	}
-
-	/* Received a full Header? */
-	if((cur = strstr(conn->inbuf, "\r\n\r\n")) != NULL) {
-		time_t currtime = time(NULL);
-		cur += 2;
-		cur[0] = '\0';
-		gaim_debug_info("simple", "\n\nreceived - %s\n######\n%s\n#######\n\n", ctime(&currtime), conn->inbuf);
-		msg = sipmsg_parse_header(conn->inbuf);
-		cur[0] = '\r';
-		cur += 2;
-		restlen = conn->inbufused - (cur - conn->inbuf);
-		if(restlen >= msg->bodylen) {
-			dummy = g_malloc(msg->bodylen + 1);
-			memcpy(dummy, cur, msg->bodylen);
-			dummy[msg->bodylen] = '\0';
-			msg->body = dummy;
-			cur += msg->bodylen;
-			memmove(conn->inbuf, cur, conn->inbuflen - (cur - conn->inbuf));
-			conn->inbufused = strlen(conn->inbuf);
-		} else {
-			sipmsg_free(msg);
-			return;
-		}
-		gaim_debug(GAIM_DEBUG_MISC, "simple", "in process response response: %d\n", msg->response);
-		process_input_message(sip, msg);
-	} else {
-		gaim_debug(GAIM_DEBUG_MISC, "simple", "received a incomplete sip msg: %s\n", conn->inbuf);
-	}
-}
-
-static void simple_udp_process(gpointer data, gint source, GaimInputCondition con) {
-	GaimConnection *gc = data;
-	struct simple_account_data *sip = gc->proto_data;
-	struct sipmsg *msg;
-	int len;
-	time_t currtime;
-
-	static char buffer[65536];
-	if((len = recv(source, buffer, sizeof(buffer) - 1, 0)) > 0) {
-		buffer[len] = '\0';
-		gaim_debug_info("simple", "\n\nreceived - %s\n######\n%s\n#######\n\n", ctime(&currtime), buffer);
-		msg = sipmsg_parse_msg(buffer);
-		if(msg) process_input_message(sip, msg);
-	}
-}
-
-static void simple_input_cb(gpointer data, gint source, GaimInputCondition cond)
-{
-	GaimConnection *gc = data;
-	struct simple_account_data *sip = gc->proto_data;
-	int len;
-	struct sip_connection *conn = connection_find(sip, source);
-	if(!conn) {
-		gaim_debug_error("simple", "Connection not found!\n");
-		return;
-	}
-
-	if(conn->inbuflen < conn->inbufused + SIMPLE_BUF_INC) {
-		conn->inbuflen += SIMPLE_BUF_INC;
-		conn->inbuf = g_realloc(conn->inbuf, conn->inbuflen);
-	}
-
-	len = read(source, conn->inbuf + conn->inbufused, SIMPLE_BUF_INC - 1);
-
-	if(len < 0 && errno == EAGAIN)
-		return;
-	else if(len <= 0) {
-		gaim_debug_info("simple", "simple_input_cb: read error\n");
-		connection_remove(sip, source);
-		if(sip->fd == source) sip->fd = -1;
-		return;
-	}
-
-	conn->inbufused += len;
-	conn->inbuf[conn->inbufused] = '\0';
-
-	process_input(sip, conn);
-}
-
-/* Callback for new connections on incoming TCP port */
-static void simple_newconn_cb(gpointer data, gint source, GaimInputCondition cond) {
-	GaimConnection *gc = data;
-	struct simple_account_data *sip = gc->proto_data;
-	struct sip_connection *conn;
-
-	int newfd = accept(source, NULL, NULL);
-
-	conn = connection_create(sip, newfd);
-
-	conn->inputhandler = gaim_input_add(newfd, GAIM_INPUT_READ, simple_input_cb, gc);
-}
-
-static void login_cb(gpointer data, gint source, const gchar *error_message) {
-	GaimConnection *gc = data;
-	struct simple_account_data *sip;
-	struct sip_connection *conn;
-
-	if (!GAIM_CONNECTION_IS_VALID(gc))
-	{
-		if (source >= 0)
-			close(source);
-		return;
-	}
-
-	if(source < 0) {
-		gaim_connection_error(gc, _("Could not connect"));
-		return;
-	}
-
-	sip = gc->proto_data;
-	sip->fd = source;
-
-	conn = connection_create(sip, source);
-
-	sip->registertimeout = gaim_timeout_add((rand()%100)+10*1000, (GSourceFunc)subscribe_timeout, sip);
-
-	do_register(sip);
-
-	conn->inputhandler = gaim_input_add(sip->fd, GAIM_INPUT_READ, simple_input_cb, gc);
-}
-
-static guint simple_ht_hash_nick(const char *nick) {
-	char *lc = g_utf8_strdown(nick, -1);
-	guint bucket = g_str_hash(lc);
-	g_free(lc);
-
-	return bucket;
-}
-
-static gboolean simple_ht_equals_nick(const char *nick1, const char *nick2) {
-	return (gaim_utf8_strcasecmp(nick1, nick2) == 0);
-}
-
-static void simple_udp_host_resolved_listen_cb(int listenfd, gpointer data) {
-	struct simple_account_data *sip = (struct simple_account_data*) data;
-
-	if(listenfd == -1) {
-		gaim_connection_error(sip->gc, _("Could not create listen socket"));
-		return;
-	}
-
-	sip->fd = listenfd;
-
-	sip->listenport = gaim_network_get_port_from_fd(sip->fd);
-	sip->listenfd = sip->fd;
-
-	sip->listenpa = gaim_input_add(sip->fd, GAIM_INPUT_READ, simple_udp_process, sip->gc);
-
-	sip->resendtimeout = gaim_timeout_add(2500, (GSourceFunc) resend_timeout, sip);
-	sip->registertimeout = gaim_timeout_add((rand()%100)+10*1000, (GSourceFunc)subscribe_timeout, sip);
-	do_register(sip);
-}
-
-static void simple_udp_host_resolved(GSList *hosts, gpointer data, const char *error_message) {
-	struct simple_account_data *sip = (struct simple_account_data*) data;
-	int addr_size;
-
-	if (!hosts || !hosts->data) {
-		gaim_connection_error(sip->gc, _("Couldn't resolve host"));
-		return;
-	}
-
-	addr_size = GPOINTER_TO_INT(hosts->data);
-	hosts = g_slist_remove(hosts, hosts->data);
-	memcpy(&(sip->serveraddr), hosts->data, addr_size);
-	g_free(hosts->data);
-	hosts = g_slist_remove(hosts, hosts->data);
-	while(hosts) {
-		hosts = g_slist_remove(hosts, hosts->data);
-		g_free(hosts->data);
-		hosts = g_slist_remove(hosts, hosts->data);
-	}
-
-	/* create socket for incoming connections */
-	if(!gaim_network_listen_range(5060, 5160, SOCK_DGRAM,
-				simple_udp_host_resolved_listen_cb, sip)) {
-		gaim_connection_error(sip->gc, _("Could not create listen socket"));
-		return;
-	}
-}
-
-static void
-simple_tcp_connect_listen_cb(int listenfd, gpointer data) {
-	struct simple_account_data *sip = (struct simple_account_data*) data;
-	GaimProxyConnectInfo *connect_info;
-
-	sip->listenfd = listenfd;
-	if(sip->listenfd == -1) {
-		gaim_connection_error(sip->gc, _("Could not create listen socket"));
-		return;
-	}
-
-	gaim_debug_info("simple", "listenfd: %d\n", sip->listenfd);
-	sip->listenport = gaim_network_get_port_from_fd(sip->listenfd);
-	sip->listenpa = gaim_input_add(sip->listenfd, GAIM_INPUT_READ,
-			simple_newconn_cb, sip->gc);
-	gaim_debug_info("simple", "connecting to %s port %d\n",
-			sip->realhostname, sip->realport);
-	/* open tcp connection to the server */
-	connect_info = gaim_proxy_connect(sip->account, sip->realhostname,
-			sip->realport, login_cb, sip->gc);
-	if(connect_info == NULL) {
-		gaim_connection_error(sip->gc, _("Couldn't create socket"));
-	}
-}
-
-static void srvresolved(GaimSrvResponse *resp, int results, gpointer data) {
-	GaimConnection *gc;
-	struct simple_account_data *sip;
-	gchar *hostname;
-	int port;
-
-	gc = data;
-	if (!GAIM_CONNECTION_IS_VALID(gc))
-	{
-		/* This connection has been closed */
-		g_free(resp);
-		return;
-	}
-
-	sip = gc->proto_data;
-	port = gaim_account_get_int(sip->account, "port", 0);
-
-	/* find the host to connect to */
-	if(results) {
-		hostname = g_strdup(resp->hostname);
-		if(!port)
-			port = resp->port;
-		g_free(resp);
-	} else {
-		if(!gaim_account_get_bool(sip->account, "useproxy", FALSE)) {
-			hostname = g_strdup(sip->servername);
-		} else {
-			hostname = g_strdup(gaim_account_get_string(sip->account, "proxy", sip->servername));
-		}
-	}
-
-	sip->realhostname = hostname;
-	sip->realport = port;
-	if(!sip->realport) sip->realport = 5060;
-
-	/* TCP case */
-	if(!sip->udp) {
-		/* create socket for incoming connections */
-		if(!gaim_network_listen_range(5060, 5160, SOCK_STREAM,
-					simple_tcp_connect_listen_cb, sip)) {
-			gaim_connection_error(sip->gc, _("Could not create listen socket"));
-			return;
-		}
-	} else { /* UDP */
-		gaim_debug_info("simple", "using udp with server %s and port %d\n", hostname, port);
-
-		gaim_dnsquery_a(hostname, port, simple_udp_host_resolved, sip);
-	}
-}
-
-static void simple_login(GaimAccount *account)
-{
-	GaimConnection *gc;
-	struct simple_account_data *sip;
-	gchar **userserver;
-	gchar *hosttoconnect;
-
-	const char *username = gaim_account_get_username(account);
-	gc = gaim_account_get_connection(account);
-
-	if (strpbrk(username, " \t\v\r\n") != NULL) {
-		gc->wants_to_die = TRUE;
-		gaim_connection_error(gc, _("SIP usernames may not contain whitespaces or @ symbols"));
-		return;
-	}
-
-	gc->proto_data = sip = g_new0(struct simple_account_data, 1);
-	sip->gc = gc;
-	sip->account = account;
-	sip->registerexpire = 900;
-	sip->udp = gaim_account_get_bool(account, "udp", FALSE);
-	/* TODO: is there a good default grow size? */
-	if(!sip->udp)
-		sip->txbuf = gaim_circ_buffer_new(0);
-
-	userserver = g_strsplit(username, "@", 2);
-	gaim_connection_set_display_name(gc, userserver[0]);
-	sip->username = g_strdup(userserver[0]);
-	sip->servername = g_strdup(userserver[1]);
-	sip->password = g_strdup(gaim_connection_get_password(gc));
-	g_strfreev(userserver);
-
-	sip->buddies = g_hash_table_new((GHashFunc)simple_ht_hash_nick, (GEqualFunc)simple_ht_equals_nick);
-
-	gaim_connection_update_progress(gc, _("Connecting"), 1, 2);
-
-	/* TODO: Set the status correctly. */
-	sip->status = g_strdup("available");
-
-	if(!gaim_account_get_bool(account, "useproxy", FALSE)) {
-		hosttoconnect = g_strdup(sip->servername);
-	} else {
-		hosttoconnect = g_strdup(gaim_account_get_string(account, "proxy", sip->servername));
-	}
-
-	/* TCP case */
-	if(!sip->udp) {
-		gaim_srv_resolve("sip", "tcp", hosttoconnect, srvresolved, gc);
-	} else { /* UDP */
-		gaim_srv_resolve("sip", "udp", hosttoconnect, srvresolved, gc);
-	}
-	g_free(hosttoconnect);
-}
-
-static void simple_close(GaimConnection *gc)
-{
-	struct simple_account_data *sip = gc->proto_data;
-
-	if(sip) {
-		/* unregister */
-		do_register_exp(sip, 0);
-		connection_free_all(sip);
-
-		g_free(sip->servername);
-		g_free(sip->username);
-		g_free(sip->password);
-		g_free(sip->registrar.nonce);
-		g_free(sip->registrar.opaque);
-		g_free(sip->registrar.target);
-		g_free(sip->registrar.realm);
-		g_free(sip->registrar.digest_session_key);
-		g_free(sip->proxy.nonce);
-		g_free(sip->proxy.opaque);
-		g_free(sip->proxy.target);
-		g_free(sip->proxy.realm);
-		g_free(sip->proxy.digest_session_key);
-		if(sip->txbuf)
-			gaim_circ_buffer_destroy(sip->txbuf);
-		g_free(sip->realhostname);
-		if(sip->listenpa) gaim_input_remove(sip->listenpa);
-		if(sip->tx_handler) gaim_input_remove(sip->tx_handler);
-		if(sip->resendtimeout) gaim_timeout_remove(sip->resendtimeout);
-		if(sip->registertimeout) gaim_timeout_remove(sip->registertimeout);
-	}
-	g_free(gc->proto_data);
-	gc->proto_data = NULL;
-}
-
-/* not needed since privacy is checked for every subscribe */
-static void dummy_add_deny(GaimConnection *gc, const char *name) {
-}
-
-static void dummy_permit_deny(GaimConnection *gc) {
-}
-
-static GaimPluginProtocolInfo prpl_info =
-{
-	0,
-	NULL,					/* user_splits */
-	NULL,					/* protocol_options */
-	NO_BUDDY_ICONS,			/* icon_spec */
-	simple_list_icon,		/* list_icon */
-	NULL,					/* list_emblems */
-	NULL,					/* status_text */
-	NULL,					/* tooltip_text */
-	simple_status_types,	/* away_states */
-	NULL,					/* blist_node_menu */
-	NULL,					/* chat_info */
-	NULL,					/* chat_info_defaults */
-	simple_login,			/* login */
-	simple_close,			/* close */
-	simple_im_send,			/* send_im */
-	NULL,					/* set_info */
-	simple_typing,			/* send_typing */
-	NULL,					/* get_info */
-	simple_set_status,		/* set_status */
-	NULL,					/* set_idle */
-	NULL,					/* change_passwd */
-	simple_add_buddy,		/* add_buddy */
-	NULL,					/* add_buddies */
-	simple_remove_buddy,	/* remove_buddy */
-	NULL,					/* remove_buddies */
-	dummy_add_deny,			/* add_permit */
-	dummy_add_deny,			/* add_deny */
-	dummy_add_deny,			/* rem_permit */
-	dummy_add_deny,			/* rem_deny */
-	dummy_permit_deny,		/* set_permit_deny */
-	NULL,					/* join_chat */
-	NULL,					/* reject_chat */
-	NULL,					/* get_chat_name */
-	NULL,					/* chat_invite */
-	NULL,					/* chat_leave */
-	NULL,					/* chat_whisper */
-	NULL,					/* chat_send */
-	simple_keep_alive,		/* keepalive */
-	NULL,					/* register_user */
-	NULL,					/* get_cb_info */
-	NULL,					/* get_cb_away */
-	NULL,					/* alias_buddy */
-	NULL,					/* group_buddy */
-	NULL,					/* rename_group */
-	NULL,					/* buddy_free */
-	NULL,					/* convo_closed */
-	NULL,					/* normalize */
-	NULL,					/* set_buddy_icon */
-	NULL,					/* remove_group */
-	NULL,					/* get_cb_real_name */
-	NULL,					/* set_chat_topic */
-	NULL,					/* find_blist_chat */
-	NULL,					/* roomlist_get_list */
-	NULL,					/* roomlist_cancel */
-	NULL,					/* roomlist_expand_category */
-	NULL,					/* can_receive_file */
-	NULL,					/* send_file */
-	NULL,					/* new_xfer */
-	NULL,					/* offline_message */
-	NULL,					/* whiteboard_prpl_ops */
-};
-
-
-static GaimPluginInfo info =
-{
-	GAIM_PLUGIN_MAGIC,
-	GAIM_MAJOR_VERSION,
-	GAIM_MINOR_VERSION,
-	GAIM_PLUGIN_PROTOCOL,                             /**< type           */
-	NULL,                                             /**< ui_requirement */
-	0,                                                /**< flags          */
-	NULL,                                             /**< dependencies   */
-	GAIM_PRIORITY_DEFAULT,                            /**< priority       */
-
-	"prpl-simple",                                    /**< id             */
-	"SIMPLE",                                         /**< name           */
-	VERSION,                                          /**< version        */
-	N_("SIP/SIMPLE Protocol Plugin"),                 /**  summary        */
-	N_("The SIP/SIMPLE Protocol Plugin"),             /**  description    */
-	"Thomas Butter <butter@uni-mannheim.de>",         /**< author         */
-	GAIM_WEBSITE,                                     /**< homepage       */
-
-	NULL,                                             /**< load           */
-	NULL,                                             /**< unload         */
-	NULL,                                             /**< destroy        */
-
-	NULL,                                             /**< ui_info        */
-	&prpl_info,                                       /**< extra_info     */
-	NULL,
-	NULL
-};
-
-static void _init_plugin(GaimPlugin *plugin)
-{
-	GaimAccountUserSplit *split;
-	GaimAccountOption *option;
-
-	split = gaim_account_user_split_new(_("Server"), "", '@');
-	prpl_info.user_splits = g_list_append(prpl_info.user_splits, split);
-
-	option = gaim_account_option_bool_new(_("Publish status (note: everyone may watch you)"), "dopublish", TRUE);
-	prpl_info.protocol_options = g_list_append(prpl_info.protocol_options, option);
-
-	option = gaim_account_option_int_new(_("Connect port"), "port", 0);
-	prpl_info.protocol_options = g_list_append(prpl_info.protocol_options, option);
-
-	option = gaim_account_option_bool_new(_("Use UDP"), "udp", FALSE);
-	prpl_info.protocol_options = g_list_append(prpl_info.protocol_options, option);
-	option = gaim_account_option_bool_new(_("Use proxy"), "useproxy", FALSE);
-	prpl_info.protocol_options = g_list_append(prpl_info.protocol_options, option);
-	option = gaim_account_option_string_new(_("Proxy"), "proxy", "");
-	prpl_info.protocol_options = g_list_append(prpl_info.protocol_options, option);
-	option = gaim_account_option_string_new(_("Auth User"), "authuser", "");
-	prpl_info.protocol_options = g_list_append(prpl_info.protocol_options, option);
-	option = gaim_account_option_string_new(_("Auth Domain"), "authdomain", "");
-	prpl_info.protocol_options = g_list_append(prpl_info.protocol_options, option);
-}
-
-GAIM_INIT_PLUGIN(simple, _init_plugin, info);

mercurial