source: mediastreamer2/linphone/coreapi/proxy.c @ 797:204f2e97bc62

/*
linphone
Copyright (C) 2000  Simon MORLAT (simon.morlat@linphone.org)
*/
/*
 *  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 Library 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 "linphonecore.h"
#include "sipsetup.h"
#include <eXosip2/eXosip.h>
#include <osipparser2/osip_message.h>
#include "lpconfig.h"
#include "private.h"

void linphone_proxy_config_write_all_to_config_file(LinphoneCore *lc){
        MSList *elem;
        int i;
        for(elem=lc->sip_conf.proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
                LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
                linphone_proxy_config_write_to_config_file(lc->config,cfg,i);
        }
}

void linphone_proxy_config_init(LinphoneProxyConfig *obj){
        memset(obj,0,sizeof(LinphoneProxyConfig));
        obj->rid=-1;
        obj->expires=3600;
}

/**
 * @addtogroup proxies
 * @{
**/

/**
 * Creates an empty proxy config.
**/
LinphoneProxyConfig *linphone_proxy_config_new(){
        LinphoneProxyConfig *obj=NULL;
        obj=ms_new(LinphoneProxyConfig,1);
        linphone_proxy_config_init(obj);
        return obj;
}

/**
 * Destroys a proxy config.
 * 
 * @note: LinphoneProxyConfig that have been removed from LinphoneCore with
 * linphone_core_remove_proxy_config() must not be freed.
**/
void linphone_proxy_config_destroy(LinphoneProxyConfig *obj){
        if (obj->reg_proxy!=NULL) ms_free(obj->reg_proxy);
        if (obj->reg_identity!=NULL) ms_free(obj->reg_identity);
        if (obj->reg_route!=NULL) ms_free(obj->reg_route);
        if (obj->ssctx!=NULL) sip_setup_context_free(obj->ssctx);
        if (obj->realm!=NULL) ms_free(obj->realm);
        if (obj->type!=NULL) ms_free(obj->type);
        if (obj->contact_addr!=NULL) ms_free(obj->contact_addr);
}

/**
 * Returns a boolean indicating that the user is sucessfully registered on the proxy.
**/
bool_t linphone_proxy_config_is_registered(const LinphoneProxyConfig *obj){
        return obj->registered;
}

void linphone_proxy_config_get_contact(LinphoneProxyConfig *cfg, const char **ip, int *port){
        if (cfg->registered){
                *ip=cfg->contact_addr;
                *port=cfg->contact_port;
        }else{
                *ip=NULL;
                *port=0;
        }
}

static void update_contact(LinphoneProxyConfig *cfg, const char *ip, const char *port){
        if (cfg->contact_addr){
                ms_free(cfg->contact_addr);
        }
        cfg->contact_addr=ms_strdup(ip);
        if (port!=NULL)
                cfg->contact_port=atoi(port);
        else cfg->contact_port=5060;
}

bool_t linphone_proxy_config_register_again_with_updated_contact(LinphoneProxyConfig *obj, osip_message_t *orig_request, osip_message_t *last_answer){
        osip_message_t *msg;
        const char *rport,*received;
        osip_via_t *via=NULL;
        osip_generic_param_t *param=NULL;
        osip_contact_t *ctt=NULL;
        osip_message_get_via(last_answer,0,&via);
        if (!via) return FALSE;
        osip_via_param_get_byname(via,"rport",&param);
        if (param) rport=param->gvalue;
        else return FALSE;
        param=NULL;
        osip_via_param_get_byname(via,"received",&param);
        if (param) received=param->gvalue;
        else return FALSE;
        osip_message_get_contact(orig_request,0,&ctt);
        if (strcmp(ctt->url->host,received)==0){
                /*ip address matches, check ports*/
                const char *contact_port=ctt->url->port;
                const char *via_rport=rport;
                if (via_rport==NULL || strlen(via_rport)>0)
                        via_rport="5060";
                if (contact_port==NULL || strlen(contact_port)>0)
                        contact_port="5060";
                if (strcmp(contact_port,via_rport)==0){
                        ms_message("Register has up to date contact, doing nothing.");
                        return FALSE;
                }else ms_message("ports do not match, need to update the register (%s <> %s)", contact_port,via_rport);
        }
        eXosip_lock();
        msg=NULL;
        eXosip_register_build_register(obj->rid,obj->expires,&msg);
        if (msg==NULL){
                eXosip_unlock();
                ms_warning("Fail to create a contact updated register.");
                return FALSE;
        }
        osip_message_get_contact(msg,0,&ctt);
        if (ctt->url->host!=NULL){
                osip_free(ctt->url->host);
        }
        ctt->url->host=osip_strdup(received);
        if (ctt->url->port!=NULL){
                osip_free(ctt->url->port);
        }
        ctt->url->port=osip_strdup(rport);
        eXosip_register_send_register(obj->rid,msg);
        eXosip_unlock();
        update_contact(obj,received,rport);
        ms_message("Resending new register with updated contact %s:%s",received,rport);
        return TRUE;
}

/**
 * Sets the proxy address
 *
 * Examples of valid sip proxy address are:
 * - IP address: sip:87.98.157.38
 * - IP address with port: sip:87.98.157.38:5062
 * - hostnames : sip:sip.example.net
**/
int linphone_proxy_config_set_server_addr(LinphoneProxyConfig *obj, const char *server_addr){
        int err;
        osip_from_t *url;
        if (obj->reg_proxy!=NULL) ms_free(obj->reg_proxy);
        obj->reg_proxy=NULL;
        if (server_addr!=NULL && strlen(server_addr)>0){
                osip_from_init(&url);
                err=osip_from_parse(url,server_addr);
                if (err==0 && url->url->host!=NULL){
                        obj->reg_proxy=ms_strdup(server_addr);
                }else{
                        ms_warning("Could not parse %s",server_addr);
                }
                osip_from_free(url);
        }
        return 0;
}

/**
 * Sets the user identity as a SIP address.
 *
 * This identity is normally formed with display name, username and domain, such 
 * as:
 * Alice <sip:alice@example.net>
 * The REGISTER messages will have from and to set to this identity.
 *
**/
void linphone_proxy_config_set_identity(LinphoneProxyConfig *obj, const char *identity){
        int err=0;
        osip_from_t *url=NULL;
        if (identity!=NULL && strlen(identity)>0){
                osip_from_init(&url);
                err=osip_from_parse(url,identity);
                if (err<0 || url->url->host==NULL || url->url->username==NULL){
                        ms_warning("Could not parse %s",identity);
                        osip_from_free(url);
                        return;
                }
        } else err=-2;
        if (obj->reg_identity!=NULL) {
                ms_free(obj->reg_identity);
                obj->reg_identity=NULL;
        }
        if (err==-2) obj->reg_identity=NULL;
        else {
                obj->reg_identity=ms_strdup(identity);
                if (obj->realm)
                        ms_free(obj->realm);
                obj->realm=ms_strdup(url->url->host);
        }
        if (url) osip_from_free(url);
}

const char *linphone_proxy_config_get_domain(const LinphoneProxyConfig *cfg){
        return cfg->realm;
}

/**
 * Sets a SIP route.
 * When a route is set, all outgoing calls will go to the route's destination if this proxy
 * is the default one (see linphone_core_set_default_proxy() ).
**/
void linphone_proxy_config_set_route(LinphoneProxyConfig *obj, const char *route)
{
        int err;
        osip_uri_param_t *lr_param=NULL;
        osip_route_t *rt=NULL;
        char *tmproute=NULL;
        if (route!=NULL && strlen(route)>0){
                osip_route_init(&rt);
                err=osip_route_parse(rt,route);
                if (err<0){
                        ms_warning("Could not parse %s",route);
                        osip_route_free(rt);
                        return ;
                }
                if (obj->reg_route!=NULL) {
                        ms_free(obj->reg_route);
                        obj->reg_route=NULL;
                }
                        
                /* check if the lr parameter is set , if not add it */
                osip_uri_uparam_get_byname(rt->url, "lr", &lr_param);
                if (lr_param==NULL){
                        osip_uri_uparam_add(rt->url,osip_strdup("lr"),NULL);
                        osip_route_to_str(rt,&tmproute);
                        obj->reg_route=ms_strdup(tmproute);
                        osip_free(tmproute);
                }else obj->reg_route=ms_strdup(route);
        }else{
                if (obj->reg_route!=NULL) ms_free(obj->reg_route);
                obj->reg_route=NULL;
        }
}

bool_t linphone_proxy_config_check(LinphoneCore *lc, LinphoneProxyConfig *obj){
        if (obj->reg_proxy==NULL){
                if (lc->vtable.display_warning)
                        lc->vtable.display_warning(lc,_("The sip proxy address you entered is invalid, it must start with \"sip:\""
                                                " followed by a hostname."));
                return FALSE;
        }
        if (obj->reg_identity==NULL){
                if (lc->vtable.display_warning)
                        lc->vtable.display_warning(lc,_("The sip identity you entered is invalid.\nIt should look like "
                                        "sip:username@proxydomain, such as sip:alice@example.net"));
                return FALSE;
        }
        return TRUE;
}

/**
 * Indicates whether a REGISTER request must be sent to the proxy.
**/
void linphone_proxy_config_enableregister(LinphoneProxyConfig *obj, bool_t val){
        obj->reg_sendregister=val;
}

/**
 * Sets the registration expiration time in seconds.
**/
void linphone_proxy_config_expires(LinphoneProxyConfig *obj, int val){
        if (val<=0) val=600;
        obj->expires=val;
}

void linphone_proxy_config_enable_publish(LinphoneProxyConfig *obj, bool_t val){
        obj->publish=val;
}

/**
 * Starts editing a proxy configuration.
 *
 * Because proxy configuration must be consistent, applications MUST
 * call linphone_proxy_config_edit() before doing any attempts to modify
 * proxy configuration (such as identity, proxy address and so on).
 * Once the modifications are done, then the application must call
 * linphone_proxy_config_done() to commit the changes.
**/
void linphone_proxy_config_edit(LinphoneProxyConfig *obj){
        obj->auth_failures=0;
        if (obj->reg_sendregister){
                /* unregister */
                if (obj->registered) {
                        osip_message_t *msg;
                        eXosip_lock();
                        eXosip_register_build_register(obj->rid,0,&msg);
                        eXosip_register_send_register(obj->rid,msg);
                        eXosip_unlock();
                        obj->registered=FALSE;
                }
        }
}

void linphone_proxy_config_apply(LinphoneProxyConfig *obj,LinphoneCore *lc)
{
        obj->lc=lc;
        linphone_proxy_config_done(obj);
}

static void linphone_proxy_config_register(LinphoneProxyConfig *obj){
        const char *id_str;
        if (obj->reg_identity!=NULL) id_str=obj->reg_identity;
        else id_str=linphone_core_get_primary_contact(obj->lc);
        if (obj->reg_sendregister){
                char *ct=NULL;
                osip_message_t *msg=NULL;
                eXosip_lock();
                obj->rid=eXosip_register_build_initial_register(id_str,obj->reg_proxy,NULL,obj->expires,&msg);
                eXosip_register_send_register(obj->rid,msg);
                eXosip_unlock();
                if (ct!=NULL) osip_free(ct);
        }
}

/**
 * Commits modification made to the proxy configuration.
**/
int linphone_proxy_config_done(LinphoneProxyConfig *obj)
{
        if (!linphone_proxy_config_check(obj->lc,obj)) return -1;
        obj->commit=TRUE;
        linphone_proxy_config_write_all_to_config_file(obj->lc);
        return 0;
}

void linphone_proxy_config_set_realm(LinphoneProxyConfig *cfg, const char *realm)
{
        if (cfg->realm!=NULL) {
                ms_free(cfg->realm);
                cfg->realm=NULL;
        }
        if (realm!=NULL) cfg->realm=ms_strdup(realm);
}

int linphone_proxy_config_send_publish(LinphoneProxyConfig *proxy,
                               LinphoneOnlineStatus presence_mode)
{
  osip_message_t *pub;
  int i;
  const char *from=NULL;
  char buf[5000];

  if (proxy->publish==FALSE) return 0;
        
  if (proxy!=NULL) {
    from=linphone_proxy_config_get_identity(proxy);
  }
  if (from==NULL) from=linphone_core_get_primary_contact(proxy->lc);

  if (presence_mode==LINPHONE_STATUS_ONLINE)
    {
      snprintf(buf, 5000, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
<presence xmlns=\"urn:ietf:params:xml:ns:pidf\"\n\
          entity=\"%s\">\n\
<tuple id=\"sg89ae\">\n\
<status>\n\
<basic>open</basic>\n\
</status>\n\
<contact priority=\"0.8\">%s</contact>\n\
<note>online</note>\n\
</tuple>\n\
</presence>",
               from, from);
    }
  else if (presence_mode==LINPHONE_STATUS_BUSY
           ||presence_mode==LINPHONE_STATUS_NOT_DISTURB)
    {
      snprintf(buf, 5000, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
<presence xmlns=\"urn:ietf:params:xml:ns:pidf\"\n\
          xmlns:es=\"urn:ietf:params:xml:ns:pidf:status:rpid-status\"\n\
          entity=\"%s\">\n\
<tuple id=\"sg89ae\">\n\
<status>\n\
<basic>open</basic>\n\
<es:activities>\n\
  <es:activity>busy</es:activity>\n\
</es:activities>\n\
</status>\n\
<contact priority=\"0.8\">%s</contact>\n\
<note>busy</note>\n\
</tuple>\n\
</presence>",
              from, from);
    }
  else if (presence_mode==LINPHONE_STATUS_BERIGHTBACK)
    {
      snprintf(buf, 5000, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
<presence xmlns=\"urn:ietf:params:xml:ns:pidf\"\n\
          xmlns:es=\"urn:ietf:params:xml:ns:pidf:status:rpid-status\"\n\
          entity=\"%s\">\n\
<tuple id=\"sg89ae\">\n\
<status>\n\
<basic>open</basic>\n\
<es:activities>\n\
  <es:activity>in-transit</es:activity>\n\
</es:activities>\n\
</status>\n\
<contact priority=\"0.8\">%s</contact>\n\
<note>be right back</note>\n\
</tuple>\n\
</presence>",
              from,from);
    }
  else if (presence_mode==LINPHONE_STATUS_AWAY
           ||presence_mode==LINPHONE_STATUS_MOVED
           ||presence_mode==LINPHONE_STATUS_ALT_SERVICE)
    {
      snprintf(buf, 5000, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
<presence xmlns=\"urn:ietf:params:xml:ns:pidf\"\n\
          xmlns:es=\"urn:ietf:params:xml:ns:pidf:status:rpid-status\"\n\
          entity=\"%s\">\n\
<tuple id=\"sg89ae\">\n\
<status>\n\
<basic>open</basic>\n\
<es:activities>\n\
  <es:activity>away</es:activity>\n\
</es:activities>\n\
</status>\n\
<contact priority=\"0.8\">%s</contact>\n\
<note>away</note>\n\
</tuple>\n\
</presence>",
              from, from);
    }
  else if (presence_mode==LINPHONE_STATUS_ONTHEPHONE)
    {
      snprintf(buf, 5000, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
<presence xmlns=\"urn:ietf:params:xml:ns:pidf\"\n\
          xmlns:es=\"urn:ietf:params:xml:ns:pidf:status:rpid-status\"\n\
          entity=\"%s\">\n\
<tuple id=\"sg89ae\">\n\
<status>\n\
<basic>open</basic>\n\
<es:activities>\n\
  <es:activity>on-the-phone</es:activity>\n\
</es:activities>\n\
</status>\n\
<contact priority=\"0.8\">%s</contact>\n\
<note>on the phone</note>\n\
</tuple>\n\
</presence>",
              from, from);
    }
  else if (presence_mode==LINPHONE_STATUS_OUTTOLUNCH)
    {
      snprintf(buf, 5000, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
<presence xmlns=\"urn:ietf:params:xml:ns:pidf\"\n\
          xmlns:es=\"urn:ietf:params:xml:ns:pidf:status:rpid-status\"\n\
          entity=\"%s\">\n\
<tuple id=\"sg89ae\">\n\
<status>\n\
<basic>open</basic>\n\
<es:activities>\n\
  <es:activity>meal</es:activity>\n\
</es:activities>\n\
</status>\n\
<contact priority=\"0.8\">%s</contact>\n\
<note>out to lunch</note>\n\
</tuple>\n\
</presence>",
              from, from);
    }
  else if (presence_mode==LINPHONE_STATUS_OFFLINE)
    {
      /* */
      snprintf(buf, 5000, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
<presence xmlns=\"urn:ietf:params:xml:ns:pidf\"\n\
xmlns:es=\"urn:ietf:params:xml:ns:pidf:status:rpid-status\"\n\
entity=\"%s\">\n%s",
              from,
"<tuple id=\"sg89ae\">\n\
<status>\n\
<basic>closed</basic>\n\
<es:activities>\n\
  <es:activity>permanent-absence</e:activity>\n\
</es:activities>\n\
</status>\n\
</tuple>\n\
\n</presence>\n");
    }

  i = eXosip_build_publish(&pub, (char *)from, (char *)from, NULL, "presence", "1800", "application/pidf+xml", buf);

  if (i<0)
    {
      ms_message("Failed to build publish request.");
      return -1;
    }

  eXosip_lock();
  i = eXosip_publish(pub, from); /* should update the sip-if-match parameter
                                    from sip-etag  from last 200ok of PUBLISH */
  eXosip_unlock();
  if (i<0)
    {
      ms_message("Failed to send publish request.");
      return -1;
    }
  return 0;
}


/**
 * Add a proxy configuration.
 * This will start registration on the proxy, if registration is enabled.
**/
int linphone_core_add_proxy_config(LinphoneCore *lc, LinphoneProxyConfig *cfg){
        if (!linphone_proxy_config_check(lc,cfg)) return -1;
        lc->sip_conf.proxies=ms_list_append(lc->sip_conf.proxies,(void *)cfg);
        linphone_proxy_config_apply(cfg,lc);
        return 0;
}

extern void linphone_friend_check_for_removed_proxy(LinphoneFriend *lf, LinphoneProxyConfig *cfg);

/**
 * Removes a proxy configuration.
 *
 * LinphoneCore will then automatically unregister and place the proxy configuration
 * on a deleted list. For that reason, a removed proxy does NOT need to be freed.
**/
void linphone_core_remove_proxy_config(LinphoneCore *lc, LinphoneProxyConfig *cfg){
        MSList *elem;
        lc->sip_conf.proxies=ms_list_remove(lc->sip_conf.proxies,(void *)cfg);
        /* add to the list of destroyed proxies, so that the possible unREGISTER request can succeed authentication */
        lc->sip_conf.deleted_proxies=ms_list_append(lc->sip_conf.deleted_proxies,(void *)cfg);
        /* this will unREGISTER */
        linphone_proxy_config_edit(cfg);
        if (lc->default_proxy==cfg){
                lc->default_proxy=NULL;
        }
        /* invalidate all references to this proxy in our friend list */
        for (elem=lc->friends;elem!=NULL;elem=ms_list_next(elem)){
                linphone_friend_check_for_removed_proxy((LinphoneFriend*)elem->data,cfg);
        }
        
}

/**
 * Sets the default proxy.
 *
 * This default proxy must be part of the list of already entered LinphoneProxyConfig.
 * Toggling it as default will make LinphoneCore use the identity associated with
 * the proxy configuration in all incoming and outgoing calls.
**/
void linphone_core_set_default_proxy(LinphoneCore *lc, LinphoneProxyConfig *config){
        /* check if this proxy is in our list */
        if (config!=NULL){
                if (ms_list_find(lc->sip_conf.proxies,config)==NULL){
                        ms_warning("Bad proxy address: it is not in the list !");
                        lc->default_proxy=NULL;
                        return ;
                }
        }
        lc->default_proxy=config;
        
}       

void linphone_core_set_default_proxy_index(LinphoneCore *lc, int index){
        if (index<0) linphone_core_set_default_proxy(lc,NULL);
        else linphone_core_set_default_proxy(lc,ms_list_nth_data(lc->sip_conf.proxies,index));
}

/**
 * Returns the default proxy configuration, that is the one used to determine the current identity.
**/
int linphone_core_get_default_proxy(LinphoneCore *lc, LinphoneProxyConfig **config){
        int pos=-1;
        if (config!=NULL) *config=lc->default_proxy;
        if (lc->default_proxy!=NULL){
                pos=ms_list_position(lc->sip_conf.proxies,ms_list_find(lc->sip_conf.proxies,(void *)lc->default_proxy));
        }
        return pos;
}

static int rid_compare(const void *pcfg,const void *prid){
        const LinphoneProxyConfig *cfg=(const LinphoneProxyConfig*)pcfg;
        const int *rid=(const int*)prid;
        ms_message("cfg= %s, cfg->rid=%i, rid=%i",cfg->reg_proxy, cfg->rid, *rid);
        return cfg->rid-(*rid);
}

LinphoneProxyConfig *linphone_core_get_proxy_config_from_rid(LinphoneCore *lc, int rid){
        MSList *elem=ms_list_find_custom(lc->sip_conf.proxies,rid_compare, &rid);
        if (elem==NULL){
                ms_message("linphone_core_get_proxy_config_from_rid: searching in deleted proxies...");
                elem=ms_list_find_custom(lc->sip_conf.deleted_proxies,rid_compare, &rid);
        }
        if (elem==NULL) return NULL;
        else return (LinphoneProxyConfig*)elem->data;
}

/**
 * Returns an unmodifiable list of entered proxy configurations.
**/
const MSList *linphone_core_get_proxy_config_list(const LinphoneCore *lc){
        return lc->sip_conf.proxies;
}


void linphone_proxy_config_process_authentication_failure(LinphoneCore *lc, eXosip_event_t *ev){
        LinphoneProxyConfig *cfg=linphone_core_get_proxy_config_from_rid(lc, ev->rid);
        if (cfg){
                cfg->auth_failures++;
                /*restart a new register so that the user gets a chance to be prompted for a password*/
                if (cfg->auth_failures==1){
                        linphone_proxy_config_register(cfg);
                }
        }
}

void linphone_proxy_config_write_to_config_file(LpConfig *config, LinphoneProxyConfig *obj, int index)
{
        char key[50];

        sprintf(key,"proxy_%i",index);
        lp_config_clean_section(config,key);
        if (obj==NULL){
                return;
        }
        if (obj->type!=NULL){
                lp_config_set_string(config,key,"type",obj->type);
        }
        if (obj->reg_proxy!=NULL){
                lp_config_set_string(config,key,"reg_proxy",obj->reg_proxy);
        }
        if (obj->reg_route!=NULL){
                lp_config_set_string(config,key,"reg_route",obj->reg_route);
        }
        if (obj->reg_identity!=NULL){
                lp_config_set_string(config,key,"reg_identity",obj->reg_identity);
        }
        lp_config_set_int(config,key,"reg_expires",obj->expires);
        lp_config_set_int(config,key,"reg_sendregister",obj->reg_sendregister);
        lp_config_set_int(config,key,"publish",obj->publish);
}



LinphoneProxyConfig *linphone_proxy_config_new_from_config_file(LpConfig *config, int index)
{
        const char *tmp;
        const char *identity;
        const char *proxy;
        LinphoneProxyConfig *cfg;
        char key[50];
        
        sprintf(key,"proxy_%i",index);

        if (!lp_config_has_section(config,key)){
                return NULL;
        }

        cfg=linphone_proxy_config_new();

        identity=lp_config_get_string(config,key,"reg_identity",NULL);  
        proxy=lp_config_get_string(config,key,"reg_proxy",NULL);
        
        linphone_proxy_config_set_identity(cfg,identity);
        linphone_proxy_config_set_server_addr(cfg,proxy);
        
        tmp=lp_config_get_string(config,key,"reg_route",NULL);
        if (tmp!=NULL) linphone_proxy_config_set_route(cfg,tmp);

        linphone_proxy_config_expires(cfg,lp_config_get_int(config,key,"reg_expires",600));
        linphone_proxy_config_enableregister(cfg,lp_config_get_int(config,key,"reg_sendregister",0));
        
        linphone_proxy_config_enable_publish(cfg,lp_config_get_int(config,key,"publish",0));
        
        tmp=lp_config_get_string(config,key,"type",NULL);
        if (tmp!=NULL && strlen(tmp)>0) 
                linphone_proxy_config_set_sip_setup(cfg,tmp);

        return cfg;
}

static void linphone_proxy_config_activate_sip_setup(LinphoneProxyConfig *cfg){
        SipSetupContext *ssc;
        SipSetup *ss=sip_setup_lookup(cfg->type);
        LinphoneCore *lc=linphone_proxy_config_get_core(cfg);
        unsigned int caps;
        if (!ss) return ;
        ssc=sip_setup_context_new(ss,cfg);
        cfg->ssctx=ssc;
        if (cfg->reg_identity==NULL){
                ms_error("Invalid identity for this proxy configuration.");
                return;
        }
        caps=sip_setup_context_get_capabilities(ssc);
        if (caps & SIP_SETUP_CAP_ACCOUNT_MANAGER){
                if (sip_setup_context_login_account(ssc,cfg->reg_identity,NULL)!=0){
                        if (lc->vtable.display_warning){
                                char *tmp=ms_strdup_printf(_("Could not login as %s"),cfg->reg_identity);
                                lc->vtable.display_warning(lc,tmp);
                                ms_free(tmp);
                        }
                        return;
                }
        }
        if (caps & SIP_SETUP_CAP_PROXY_PROVIDER){
                char proxy[256];
                if (sip_setup_context_get_proxy(ssc,NULL,proxy,sizeof(proxy))==0){
                        linphone_proxy_config_set_server_addr(cfg,proxy);
                }else{
                        ms_error("Could not retrieve proxy uri !");
                }
        }
        
}

SipSetup *linphone_proxy_config_get_sip_setup(LinphoneProxyConfig *cfg){
        if (cfg->ssctx!=NULL) return cfg->ssctx->funcs;
        if (cfg->type!=NULL){
                return sip_setup_lookup(cfg->type);
        }
        return NULL;
}

void linphone_proxy_config_update(LinphoneProxyConfig *cfg){
        if (cfg->commit){
                if (cfg->type && cfg->ssctx==NULL){
                        linphone_proxy_config_activate_sip_setup(cfg);
                }
                linphone_proxy_config_register(cfg);
                cfg->commit=FALSE;
        }
}

void linphone_proxy_config_set_sip_setup(LinphoneProxyConfig *cfg, const char *type){
        if (cfg->type)
                ms_free(cfg->type);
        cfg->type=ms_strdup(type);
        if (linphone_proxy_config_get_addr(cfg)==NULL){
                /*put a placeholder so that the sip setup gets saved into the config */
                linphone_proxy_config_set_server_addr(cfg,"sip:undefined");
        }
}

SipSetupContext *linphone_proxy_config_get_sip_setup_context(LinphoneProxyConfig *cfg){
        return cfg->ssctx;
}

/**
 * @}
**/

LinphoneAccountCreator *linphone_account_creator_new(struct _LinphoneCore *core, const char *type){
        LinphoneAccountCreator *obj;
        LinphoneProxyConfig *cfg;
        SipSetup *ss=sip_setup_lookup(type);
        SipSetupContext *ssctx;
        if (!ss){
                return NULL;
        }
        if (!(sip_setup_get_capabilities(ss) & SIP_SETUP_CAP_ACCOUNT_MANAGER)){
                ms_error("%s cannot manage accounts.");
                return NULL;
        }
        obj=ms_new0(LinphoneAccountCreator,1);
        cfg=linphone_proxy_config_new();
        ssctx=sip_setup_context_new(ss,cfg);
        obj->lc=core;
        obj->ssctx=ssctx;
        set_string(&obj->domain,sip_setup_context_get_domains(ssctx)[0]);
        cfg->lc=core;
        return obj;
}

void linphone_account_creator_set_username(LinphoneAccountCreator *obj, const char *username){
        set_string(&obj->username,username);
}

void linphone_account_creator_set_password(LinphoneAccountCreator *obj, const char *password){
        set_string(&obj->password,password);
}

void linphone_account_creator_set_domain(LinphoneAccountCreator *obj, const char *domain){
        set_string(&obj->domain,domain);
}

const char * linphone_account_creator_get_username(LinphoneAccountCreator *obj){
        return obj->username;
}

const char * linphone_account_creator_get_domain(LinphoneAccountCreator *obj){
        return obj->domain;
}

int linphone_account_creator_test_existence(LinphoneAccountCreator *obj){
        SipSetupContext *ssctx=obj->ssctx;
        char *uri=ms_strdup_printf("%s@%s",obj->username,obj->domain);
        int err=sip_setup_context_account_exists(ssctx,uri);
        ms_free(uri);
        return err;
}

LinphoneProxyConfig * linphone_account_creator_validate(LinphoneAccountCreator *obj){
        SipSetupContext *ssctx=obj->ssctx;
        char *uri=ms_strdup_printf("%s@%s",obj->username,obj->domain);
        int err=sip_setup_context_create_account(ssctx,uri,obj->password);
        ms_free(uri);
        if (err==0) {
                obj->succeeded=TRUE;
                return sip_setup_context_get_proxy_config(ssctx);
        }
        return NULL;
}

void linphone_account_creator_destroy(LinphoneAccountCreator *obj){
        if (obj->username)
                ms_free(obj->username);
        if (obj->password)
                ms_free(obj->password);
        if (obj->domain)
                ms_free(obj->domain);
        if (!obj->succeeded){
                linphone_proxy_config_destroy(sip_setup_context_get_proxy_config(obj->ssctx));
        }
}