res_jabber.c

Go to the documentation of this file.

/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 1999 - 2006, Digium, Inc.
 *
 * Matt O'Gorman <mogorman@digium.com>
 *
 * See http://www.asterisk.org for more information about
 * the Asterisk project. Please do not directly contact
 * any of the maintainers of this project for assistance;
 * the project provides a web site, mailing lists and IRC
 * channels for your use.
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License Version 2. See the LICENSE file
 * at the top of the source tree.
 */

/*! \file
 * \brief A resource for interfacing Asterisk directly as a client
 * or a component to a XMPP/Jabber compliant server.
 *
 * References:
 * - http://www.xmpp.org - The XMPP standards foundation
 *
 * \extref Iksemel http://code.google.com/p/iksemel/
 *
 * \todo If you unload this module, chan_gtalk/jingle will be dead. How do we handle that?
 * \todo Dialplan applications need RETURN variable, like JABBERSENDSTATUS
 *
 */

/*** MODULEINFO
   <depend>iksemel</depend>
   <use>openssl</use>
 ***/

#include "asterisk.h"

ASTERISK_FILE_VERSION(__FILE__, "$Revision: 209234 $")

#include <ctype.h>
#include <iksemel.h>

#include "asterisk/channel.h"
#include "asterisk/jabber.h"
#include "asterisk/file.h"
#include "asterisk/config.h"
#include "asterisk/callerid.h"
#include "asterisk/lock.h"
#include "asterisk/cli.h"
#include "asterisk/app.h"
#include "asterisk/pbx.h"
#include "asterisk/md5.h"
#include "asterisk/acl.h"
#include "asterisk/utils.h"
#include "asterisk/module.h"
#include "asterisk/astobj.h"
#include "asterisk/astdb.h"
#include "asterisk/manager.h"

/*** DOCUMENTATION
   <application name="JabberSend" language="en_US">
      <synopsis>
         Send a Jabber Message
      </synopsis>
      <syntax>
         <parameter name="Jabber" required="true">
            <para>Client or transport Asterisk uses to connect to Jabber.</para>
         </parameter>
         <parameter name="JID" required="true">
            <para>XMPP/Jabber JID (Name) of recipient.</para>
         </parameter>
         <parameter name="Message" required="true">
            <para>Message to be sent to the buddy.</para>
         </parameter>
      </syntax>
      <description>
         <para>Allows user to send a message to a receipent via XMPP.</para>
      </description>
   </application>
   <application name="JabberStatus" language="en_US">
      <synopsis>
         Retrieve the status of a jabber list member
      </synopsis>
      <syntax>
         <parameter name="Jabber" required="true">
            <para>Client or transport Asterisk users to connect to Jabber.</para>
         </parameter>
         <parameter name="JID" required="true">
            <para>XMPP/Jabber JID (Name) of recipient.</para>
         </parameter>
         <parameter name="Variable" required="true">
            <para>Variable to store the status of requested user.</para>
         </parameter>
      </syntax>
      <description>
         <para>This application is deprecated. Please use the JABBER_STATUS() function instead.</para>
         <para>Retrieves the numeric status associated with the specified buddy <replaceable>JID</replaceable>.
         The return value in the <replaceable>Variable</replaceable>will be one of the following.</para>
         <enumlist>
            <enum name="1">
               <para>Online.</para>
            </enum>
            <enum name="2">
               <para>Chatty.</para>
            </enum>
            <enum name="3">
               <para>Away.</para>
            </enum>
            <enum name="4">
               <para>Extended Away.</para>
            </enum>
            <enum name="5">
               <para>Do Not Disturb.</para>
            </enum>
            <enum name="6">
               <para>Offline.</para>
            </enum>
            <enum name="7">
               <para>Not In Roster.</para>
            </enum>
         </enumlist>
      </description>
   </application>
   <function name="JABBER_STATUS" language="en_US">
      <synopsis>
         Retrieve the status of a jabber list member
      </synopsis>
      <syntax>
         <parameter name="sender" required="true">
            <para>XMPP/Jabber ID (Name) of sender.</para>
         </parameter>
         <parameter name="buddy" required="true">
            <para>XMPP/Jabber JID (Name) of recipient.</para>
         </parameter>
         <parameter name="resource">
            <para>Client or transport Asterisk users to connect to Jabber.</para>
         </parameter>
      </syntax>
      <description>
         <para>Retrieves the numeric status associated with the specified buddy <replaceable>JID</replaceable>.
         The return value will be one of the following.</para>
         <enumlist>
            <enum name="1">
               <para>Online.</para>
            </enum>
            <enum name="2">
               <para>Chatty.</para>
            </enum>
            <enum name="3">
               <para>Away.</para>
            </enum>
            <enum name="4">
               <para>Extended Away.</para>
            </enum>
            <enum name="5">
               <para>Do Not Disturb.</para>
            </enum>
            <enum name="6">
               <para>Offline.</para>
            </enum>
            <enum name="7">
               <para>Not In Roster.</para>
            </enum>
         </enumlist>
      </description>
   </function>
 ***/

/*! \todo This should really be renamed to xmpp.conf. For backwards compatibility, we
   need to read both files */
#define JABBER_CONFIG "jabber.conf"

#ifndef FALSE
#define FALSE 0
#endif

#ifndef TRUE
#define TRUE 1
#endif

/*-- Forward declarations */
static void aji_buddy_destroy(struct aji_buddy *obj);
static void aji_client_destroy(struct aji_client *obj);
static int aji_send_exec(struct ast_channel *chan, void *data);
static int aji_status_exec(struct ast_channel *chan, void *data);
static int aji_is_secure(struct aji_client *client);
#ifdef HAVE_OPENSSL
static int aji_start_tls(struct aji_client *client);
static int aji_tls_handshake(struct aji_client *client);
#endif
static int aji_io_recv(struct aji_client *client, char *buffer, size_t buf_len, int timeout);
static int aji_recv(struct aji_client *client, int timeout);
static int aji_send_header(struct aji_client *client, const char *to);
static int aji_send_raw(struct aji_client *client, const char *xmlstr);
static void aji_log_hook(void *data, const char *xmpp, size_t size, int is_incoming);
static int aji_start_sasl(struct aji_client *client, enum ikssasltype type, char *username, char *pass);
static int aji_act_hook(void *data, int type, iks *node);
static void aji_handle_iq(struct aji_client *client, iks *node);
static void aji_handle_message(struct aji_client *client, ikspak *pak);
static void aji_handle_presence(struct aji_client *client, ikspak *pak);
static void aji_handle_subscribe(struct aji_client *client, ikspak *pak);
static void *aji_recv_loop(void *data);
static int aji_initialize(struct aji_client *client);
static int aji_client_connect(void *data, ikspak *pak);
static void aji_set_presence(struct aji_client *client, char *to, char *from, int level, char *desc);
static char *aji_do_set_debug(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static char *aji_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static char *aji_show_clients(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static char *aji_show_buddies(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static char *aji_test(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static int aji_create_client(char *label, struct ast_variable *var, int debug);
static int aji_create_buddy(char *label, struct aji_client *client);
static int aji_reload(int reload);
static int aji_load_config(int reload);
static void aji_pruneregister(struct aji_client *client);
static int aji_filter_roster(void *data, ikspak *pak);
static int aji_get_roster(struct aji_client *client);
static int aji_client_info_handler(void *data, ikspak *pak);
static int aji_dinfo_handler(void *data, ikspak *pak);
static int aji_ditems_handler(void *data, ikspak *pak);
static int aji_register_query_handler(void *data, ikspak *pak);
static int aji_register_approve_handler(void *data, ikspak *pak);
static int aji_reconnect(struct aji_client *client);
static iks *jabber_make_auth(iksid * id, const char *pass, const char *sid);
/* No transports in this version */
/*
static int aji_create_transport(char *label, struct aji_client *client);
static int aji_register_transport(void *data, ikspak *pak);
static int aji_register_transport2(void *data, ikspak *pak);
*/

static struct ast_cli_entry aji_cli[] = {
   AST_CLI_DEFINE(aji_do_set_debug, "Enable/Disable Jabber debug"),
   AST_CLI_DEFINE(aji_do_reload, "Reload Jabber configuration"),
   AST_CLI_DEFINE(aji_show_clients, "Show state of clients and components"),
   AST_CLI_DEFINE(aji_show_buddies, "Show buddy lists of our clients"),
   AST_CLI_DEFINE(aji_test, "Shows roster, but is generally used for mog's debugging."),
};

static char *app_ajisend = "JabberSend";

static char *app_ajistatus = "JabberStatus";

struct aji_client_container clients;
struct aji_capabilities *capabilities = NULL;

/*! \brief Global flags, initialized to default values */
static struct ast_flags globalflags = { AJI_AUTOREGISTER };

/*!
 * \brief Deletes the aji_client data structure.
 * \param obj aji_client The structure we will delete.
 * \return void.
 */
static void aji_client_destroy(struct aji_client *obj)
{
   struct aji_message *tmp;
   ASTOBJ_CONTAINER_DESTROYALL(&obj->buddies, aji_buddy_destroy);
   ASTOBJ_CONTAINER_DESTROY(&obj->buddies);
   iks_filter_delete(obj->f);
   iks_parser_delete(obj->p);
   iks_stack_delete(obj->stack);
   AST_LIST_LOCK(&obj->messages);
   while ((tmp = AST_LIST_REMOVE_HEAD(&obj->messages, list))) {
      if (tmp->from)
         ast_free(tmp->from);
      if (tmp->message)
         ast_free(tmp->message);
   }
   AST_LIST_HEAD_DESTROY(&obj->messages);
   ast_free(obj);
}

/*!
 * \brief Deletes the aji_buddy data structure.
 * \param obj aji_buddy The structure we will delete.
 * \return void.
 */
static void aji_buddy_destroy(struct aji_buddy *obj)
{
   struct aji_resource *tmp;

   while ((tmp = obj->resources)) {
      obj->resources = obj->resources->next;
      ast_free(tmp->description);
      ast_free(tmp);
   }

   ast_free(obj);
}

/*!
 * \brief Find version in XML stream and populate our capabilities list
 * \param node the node attribute in the caps element we'll look for or add to 
 * our list
 * \param version the version attribute in the caps element we'll look for or 
 * add to our list
 * \param pak struct The XML stanza we're processing
 * \return a pointer to the added or found aji_version structure
 */ 
static struct aji_version *aji_find_version(char *node, char *version, ikspak *pak)
{
   struct aji_capabilities *list = NULL;
   struct aji_version *res = NULL;

   list = capabilities;

   if(!node)
      node = pak->from->full;
   if(!version)
      version = "none supplied.";
   while(list) {
      if(!strcasecmp(list->node, node)) {
         res = list->versions;
         while(res) {
             if(!strcasecmp(res->version, version))
                return res;
             res = res->next;
         }
         /* Specified version not found. Let's add it to 
            this node in our capabilities list */
         if(!res) {
            res = ast_malloc(sizeof(*res));
            if(!res) {
               ast_log(LOG_ERROR, "Out of memory!\n");
               return NULL;
            }
            res->jingle = 0;
            res->parent = list;
            ast_copy_string(res->version, version, sizeof(res->version));
            res->next = list->versions;
            list->versions = res;
            return res;
         }
      }
      list = list->next;
   }
   /* Specified node not found. Let's add it our capabilities list */
   if(!list) {
      list = ast_malloc(sizeof(*list));
      if(!list) {
         ast_log(LOG_ERROR, "Out of memory!\n");
         return NULL;
      }
      res = ast_malloc(sizeof(*res));
      if(!res) {
         ast_log(LOG_ERROR, "Out of memory!\n");
         ast_free(list);
         return NULL;
      }
      ast_copy_string(list->node, node, sizeof(list->node));
      ast_copy_string(res->version, version, sizeof(res->version));
      res->jingle = 0;
      res->parent = list;
      res->next = NULL;
      list->versions = res;
      list->next = capabilities;
      capabilities = list;
   }
   return res;
}
/*!
 * \brief Find the aji_resource we want
 * \param buddy aji_buddy A buddy
 * \param name 
 * \return aji_resource object
*/
static struct aji_resource *aji_find_resource(struct aji_buddy *buddy, char *name)
{
   struct aji_resource *res = NULL;
   if (!buddy || !name)
      return res;
   res = buddy->resources;
   while (res) {
      if (!strcasecmp(res->resource, name)) {
         break;
      }
      res = res->next;
   }
   return res;
}

/*!
 * \brief Jabber GTalk function
 * \param node iks
 * \return 1 on success, 0 on failure.
*/
static int gtalk_yuck(iks *node)
{
   if (iks_find_with_attrib(node, "c", "node", "http://www.google.com/xmpp/client/caps"))
      return 1;
   return 0;
}

/*!
 * \brief Setup the authentication struct
 * \param id iksid 
 * \param pass password
 * \param sid
 * \return x iks
*/
static iks *jabber_make_auth(iksid * id, const char *pass, const char *sid)
{
   iks *x, *y;
   x = iks_new("iq");
   iks_insert_attrib(x, "type", "set");
   y = iks_insert(x, "query");
   iks_insert_attrib(y, "xmlns", IKS_NS_AUTH);
   iks_insert_cdata(iks_insert(y, "username"), id->user, 0);
   iks_insert_cdata(iks_insert(y, "resource"), id->resource, 0);
   if (sid) {
      char buf[41];
      char sidpass[100];
      snprintf(sidpass, sizeof(sidpass), "%s%s", sid, pass);
      ast_sha1_hash(buf, sidpass);
      iks_insert_cdata(iks_insert(y, "digest"), buf, 0);
   } else {
      iks_insert_cdata(iks_insert(y, "password"), pass, 0);
   }
   return x;
}

/*!
 * \brief Dial plan function status(). puts the status of watched user 
   into a channel variable.
 * \param chan ast_channel
 * \param data
 * \return 0 on success, -1 on error
 */
static int aji_status_exec(struct ast_channel *chan, void *data)
{
   struct aji_client *client = NULL;
   struct aji_buddy *buddy = NULL;
   struct aji_resource *r = NULL;
   char *s = NULL;
   int stat = 7;
   char status[2];
   static int deprecation_warning = 0;
   AST_DECLARE_APP_ARGS(args,
      AST_APP_ARG(sender);
      AST_APP_ARG(jid);
      AST_APP_ARG(variable);
   );
   AST_DECLARE_APP_ARGS(jid,
      AST_APP_ARG(screenname);
      AST_APP_ARG(resource);
   );

   if (deprecation_warning++ % 10 == 0)
      ast_log(LOG_WARNING, "JabberStatus is deprecated.  Please use the JABBER_STATUS dialplan function in the future.\n");

   if (!data) {
      ast_log(LOG_ERROR, "Usage: JabberStatus(<sender>,<jid>[/<resource>],<varname>\n");
      return 0;
   }
   s = ast_strdupa(data);
   AST_STANDARD_APP_ARGS(args, s);

   if (args.argc != 3) {
      ast_log(LOG_ERROR, "JabberStatus() requires 3 arguments.\n");
      return -1;
   }

   AST_NONSTANDARD_APP_ARGS(jid, args.jid, '/');

   if (!(client = ast_aji_get_client(args.sender))) {
      ast_log(LOG_WARNING, "Could not find sender connection: '%s'\n", args.sender);
      return -1;
   }
   buddy = ASTOBJ_CONTAINER_FIND(&client->buddies, jid.screenname);
   if (!buddy) {
      ast_log(LOG_WARNING, "Could not find buddy in list: '%s'\n", jid.screenname);
      return -1;
   }
   r = aji_find_resource(buddy, jid.resource);
   if (!r && buddy->resources) 
      r = buddy->resources;
   if (!r)
      ast_log(LOG_NOTICE, "Resource '%s' of buddy '%s' was not found\n", jid.resource, jid.screenname);
   else
      stat = r->status;
   snprintf(status, sizeof(status), "%d", stat);
   pbx_builtin_setvar_helper(chan, args.variable, status);
   return 0;
}

static int acf_jabberstatus_read(struct ast_channel *chan, const char *name, char *data, char *buf, size_t buflen)
{
   struct aji_client *client = NULL;
   struct aji_buddy *buddy = NULL;
   struct aji_resource *r = NULL;
   int stat = 7;
   AST_DECLARE_APP_ARGS(args,
      AST_APP_ARG(sender);
      AST_APP_ARG(jid);
   );
   AST_DECLARE_APP_ARGS(jid,
      AST_APP_ARG(screenname);
      AST_APP_ARG(resource);
   );

   if (!data) {
      ast_log(LOG_ERROR, "Usage: JABBER_STATUS(<sender>,<jid>[/<resource>])\n");
      return 0;
   }
   AST_STANDARD_APP_ARGS(args, data);

   if (args.argc != 2) {
      ast_log(LOG_ERROR, "JABBER_STATUS requires 2 arguments: sender and jid.\n");
      return -1;
   }

   AST_NONSTANDARD_APP_ARGS(jid, args.jid, '/');

   if (!(client = ast_aji_get_client(args.sender))) {
      ast_log(LOG_WARNING, "Could not find sender connection: '%s'\n", args.sender);
      return -1;
   }
   buddy = ASTOBJ_CONTAINER_FIND(&client->buddies, jid.screenname);
   if (!buddy) {
      ast_log(LOG_WARNING, "Could not find buddy in list: '%s'\n", jid.screenname);
      return -1;
   }
   r = aji_find_resource(buddy, jid.resource);
   if (!r && buddy->resources) 
      r = buddy->resources;
   if (!r)
      ast_log(LOG_NOTICE, "Resource %s of buddy %s was not found.\n", jid.resource, jid.screenname);
   else
      stat = r->status;
   snprintf(buf, buflen, "%d", stat);
   return 0;
}

static struct ast_custom_function jabberstatus_function = {
   .name = "JABBER_STATUS",
   .read = acf_jabberstatus_read,
};

/*!
 * \brief Dial plan function to send a message.
 * \param chan ast_channel
 * \param data  Data is sender|receiver|message.
 * \return 0 on success,-1 on error.
 */
static int aji_send_exec(struct ast_channel *chan, void *data)
{
   struct aji_client *client = NULL;
   char *s;
   AST_DECLARE_APP_ARGS(args,
      AST_APP_ARG(sender);
      AST_APP_ARG(recipient);
      AST_APP_ARG(message);
   );

   if (!data) {
      ast_log(LOG_ERROR, "Usage:  JabberSend(<sender>,<recipient>,<message>)\n");
      return 0;
   }
   s = ast_strdupa(data);

   AST_STANDARD_APP_ARGS(args, s);
   if (args.argc < 3) {
      ast_log(LOG_ERROR, "JabberSend requires 3 arguments: '%s'\n", (char *) data);
      return -1;
   }

   if (!(client = ast_aji_get_client(args.sender))) {
      ast_log(LOG_WARNING, "Could not find sender connection: '%s'\n", args.sender);
      return -1;
   }
   if (strchr(args.recipient, '@') && !ast_strlen_zero(args.message))
      ast_aji_send_chat(client, args.recipient, args.message);
   return 0;
}

/*! 
 * \brief Tests whether the connection is secured or not
 * \return 0 if the connection is not secured
 */
static int aji_is_secure(struct aji_client *client)
{
#ifdef HAVE_OPENSSL
   return client->stream_flags & SECURE;
#else
   return 0;
#endif
}

#ifdef HAVE_OPENSSL
/*!
 * \brief Starts the TLS procedure
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \return IKS_OK on success, an error code if sending failed, IKS_NET_TLSFAIL
 * if OpenSSL is not installed
 */
static int aji_start_tls(struct aji_client *client)
{
   int ret;

   /* This is sent not encrypted */
   ret = iks_send_raw(client->p, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
   if (ret)
      return ret;

   client->stream_flags |= TRY_SECURE;
   return IKS_OK;
}

/*! 
 * \brief TLS handshake, OpenSSL initialization
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \return IKS_OK on success, IKS_NET_TLSFAIL on failure 
 */
static int aji_tls_handshake(struct aji_client *client)
{
   int ret;
   int sock;
   
   ast_debug(1, "Starting TLS handshake\n"); 

   /* Choose an SSL/TLS protocol version, create SSL_CTX */
   client->ssl_method = SSLv3_method();
   client->ssl_context = SSL_CTX_new(client->ssl_method);                
   if (!client->ssl_context)
      return IKS_NET_TLSFAIL;

   /* Create new SSL session */
   client->ssl_session = SSL_new(client->ssl_context);
   if (!client->ssl_session)
      return IKS_NET_TLSFAIL;

   /* Enforce TLS on our XMPP connection */
   sock = iks_fd(client->p);
   ret = SSL_set_fd(client->ssl_session, sock);
   if (!ret)
      return IKS_NET_TLSFAIL;

   /* Perform SSL handshake */
   ret = SSL_connect(client->ssl_session);
   if (!ret)
      return IKS_NET_TLSFAIL;

   client->stream_flags &= (~TRY_SECURE);
   client->stream_flags |= SECURE;

   /* Sent over the established TLS connection */
   ret = aji_send_header(client, client->jid->server);
   if (ret != IKS_OK)
      return IKS_NET_TLSFAIL;

   ast_debug(1, "TLS started with server\n"); 

   return IKS_OK;
}
#endif /* HAVE_OPENSSL */

/*! 
 * \brief Secured or unsecured IO socket receiving function
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param buffer the reception buffer
 * \param buf_len the size of the buffer
 * \param timeout the select timer
 * \return the number of read bytes on success, 0 on timeout expiration, 
 * -1 on  error
 */
static int aji_io_recv(struct aji_client *client, char *buffer, size_t buf_len, int timeout)
{
   int sock;
   fd_set fds;
   struct timeval tv, *tvptr = NULL;
   int len, res;

#ifdef HAVE_OPENSSL
   if (aji_is_secure(client)) {
      sock = SSL_get_fd(client->ssl_session);
      if (sock < 0)
         return -1;     
   } else
#endif /* HAVE_OPENSSL */
      sock = iks_fd(client->p);  

   memset(&tv, 0, sizeof(struct timeval));
   FD_ZERO(&fds);
   FD_SET(sock, &fds);
   tv.tv_sec = timeout;

   /* NULL value for tvptr makes ast_select wait indefinitely */
   tvptr = (timeout != -1) ? &tv : NULL;

   /* ast_select emulates linux behaviour in terms of timeout handling */
   res = ast_select(sock + 1, &fds, NULL, NULL, tvptr);
   if (res > 0) {
#ifdef HAVE_OPENSSL
      if (aji_is_secure(client)) {
         len = SSL_read(client->ssl_session, buffer, buf_len);
      } else
#endif /* HAVE_OPENSSL */
         len = recv(sock, buffer, buf_len, 0);

      if (len > 0) {
         return len;
      } else if (len <= 0) {
         return -1;
      }
   }
   return res;
}

/*! 
 * \brief Tries to receive data from the Jabber server
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param timeout the timeout value
 * This function receives (encrypted or unencrypted) data from the XMPP server,
 * and passes it to the parser.
 * \return IKS_OK on success, IKS_NET_RWERR on IO error, IKS_NET_NOCONN, if no
 * connection available, IKS_NET_EXPIRED on timeout expiration
 */
static int aji_recv (struct aji_client *client, int timeout)
{
   int len, ret;
   char buf[NET_IO_BUF_SIZE - 1];
   char newbuf[NET_IO_BUF_SIZE - 1];
   int pos = 0;
   int newbufpos = 0;
   unsigned char c;

   memset(buf, 0, sizeof(buf));
   memset(newbuf, 0, sizeof(newbuf));

   while (1) {
      len = aji_io_recv(client, buf, NET_IO_BUF_SIZE - 2, timeout);
      if (len < 0) return IKS_NET_RWERR;
      if (len == 0) return IKS_NET_EXPIRED;
      buf[len] = '\0';

      /* our iksemel parser won't work as expected if we feed
         it with XML packets that contain multiple whitespace 
         characters between tags */
      while (pos < len) {
         c = buf[pos];
         /* if we stumble on the ending tag character,
            we skip any whitespace that follows it*/
         if (c == '>') {
            while (isspace(buf[pos+1])) {
               pos++;
            }
         }
         newbuf[newbufpos] = c;
         newbufpos ++;
         pos++;
      }
      pos = 0;
      newbufpos = 0;

      /* Log the message here, because iksemel's logHook is 
         unaccessible */
      aji_log_hook(client, buf, len, 1);

      /* let iksemel deal with the string length, 
         and reset our buffer */
      ret = iks_parse(client->p, newbuf, 0, 0);
      memset(newbuf, 0, sizeof(newbuf));

      switch (ret) {
      case IKS_NOMEM:
         ast_log(LOG_WARNING, "Parsing failure: Out of memory.\n");
         break;
      case IKS_BADXML:
         ast_log(LOG_WARNING, "Parsing failure: Invalid XML.\n");
         break;
      case IKS_HOOK:
         ast_log(LOG_WARNING, "Parsing failure: Hook returned an error.\n");
         break;
      }
      if (ret != IKS_OK) {
         return ret;
      }
      ast_debug(3, "XML parsing successful\n"); 
   }
   return IKS_OK;
}

/*! 
 * \brief Sends XMPP header to the server
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param to the target XMPP server
 * \return IKS_OK on success, any other value on failure
 */
static int aji_send_header(struct aji_client *client, const char *to)
{
   char *msg;
   int len, err;

   len = 91 + strlen(client->name_space) + 6 + strlen(to) + 16 + 1;
   msg = iks_malloc(len);
   if (!msg)
      return IKS_NOMEM;
   sprintf(msg, "<?xml version='1.0'?>"
      "<stream:stream xmlns:stream='http://etherx.jabber.org/streams' xmlns='"
      "%s' to='%s' version='1.0'>", client->name_space, to);
   err = aji_send_raw(client, msg);
   iks_free(msg);
   if (err != IKS_OK)
      return err;

   return IKS_OK;
}

/*! 
 * \brief Wraps raw sending
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param x the XMPP packet to send
 * \return IKS_OK on success, any other value on failure
 */
int ast_aji_send(struct aji_client *client, iks *x)
{
   return aji_send_raw(client, iks_string(iks_stack(x), x));
}

/*! 
 * \brief Sends an XML string over an XMPP connection
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param xmlstr the XML string to send
 * The XML data is sent whether the connection is secured or not. In the 
 * latter case, we just call iks_send_raw().
 * \return IKS_OK on success, any other value on failure
 */
static int aji_send_raw(struct aji_client *client, const char *xmlstr)
{
   int ret;
#ifdef HAVE_OPENSSL
   int len = strlen(xmlstr);

   if (aji_is_secure(client)) {
      ret = SSL_write(client->ssl_session, xmlstr, len);
      if (ret) {
         /* Log the message here, because iksemel's logHook is 
            unaccessible */
         aji_log_hook(client, xmlstr, len, 0);
         return IKS_OK;
      }
   }
#endif
   /* If needed, data will be sent unencrypted, and logHook will 
      be called inside iks_send_raw */
   ret = iks_send_raw(client->p, xmlstr);
   if (ret != IKS_OK)
      return ret; 

   return IKS_OK;
}

/*!
 * \brief the debug loop.
 * \param data void
 * \param xmpp xml data as string
 * \param size size of string
 * \param is_incoming direction of packet 1 for inbound 0 for outbound.
 */
static void aji_log_hook(void *data, const char *xmpp, size_t size, int is_incoming)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);

   if (!ast_strlen_zero(xmpp))
      manager_event(EVENT_FLAG_USER, "JabberEvent", "Account: %s\r\nPacket: %s\r\n", client->name, xmpp);

   if (client->debug) {
      if (is_incoming)
         ast_verbose("\nJABBER: %s INCOMING: %s\n", client->name, xmpp);
      else {
         if( strlen(xmpp) == 1) {
            if(option_debug > 2  && xmpp[0] == ' ') {
               ast_verbose("\nJABBER: Keep alive packet\n");
            }
         } else
            ast_verbose("\nJABBER: %s OUTGOING: %s\n", client->name, xmpp);
      }

   }
   ASTOBJ_UNREF(client, aji_client_destroy);
}

/*!
 * \brief A wrapper function for iks_start_sasl
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param type the SASL authentication type. Supported types are PLAIN and MD5
 * \param username
 * \param pass password.
 *
 * \return IKS_OK on success, IKSNET_NOTSUPP on failure.
 */
static int aji_start_sasl(struct aji_client *client, enum ikssasltype type, char *username, char *pass)
{
   iks *x = NULL;
   int len;
   char *s;
   char *base64;

   /* trigger SASL DIGEST-MD5 only over an unsecured connection.
      iks_start_sasl is an iksemel API function and relies on GnuTLS,
      whereas we use OpenSSL */
   if ((type & IKS_STREAM_SASL_MD5) && !aji_is_secure(client))
      return iks_start_sasl(client->p, IKS_SASL_DIGEST_MD5, username, pass); 
   if (!(type & IKS_STREAM_SASL_PLAIN)) {
      ast_log(LOG_ERROR, "Server does not support SASL PLAIN authentication\n");
      return IKS_NET_NOTSUPP;
   }

   x = iks_new("auth"); 
   if (!x) {
      ast_log(LOG_ERROR, "Out of memory.\n");
      return IKS_NET_NOTSUPP;
   }

   iks_insert_attrib(x, "xmlns", IKS_NS_XMPP_SASL);
   len = strlen(username) + strlen(pass) + 3;
   s = alloca(len);
   base64 = alloca((len + 2) * 4 / 3);
   iks_insert_attrib(x, "mechanism", "PLAIN");
   snprintf(s, len, "%c%s%c%s", 0, username, 0, pass);

   /* exclude the NULL training byte from the base64 encoding operation
      as some XMPP servers will refuse it.
      The format for authentication is [authzid]\0authcid\0password
      not [authzid]\0authcid\0password\0 */
   ast_base64encode(base64, (const unsigned char *) s, len - 1, (len + 2) * 4 / 3);
   iks_insert_cdata(x, base64, 0);
   ast_aji_send(client, x);
   iks_delete(x);

   return IKS_OK;
}

/*!
 * \brief The action hook parses the inbound packets, constantly running.
 * \param data aji client structure 
 * \param type type of packet 
 * \param node the actual packet.
 * \return IKS_OK or IKS_HOOK .
 */
static int aji_act_hook(void *data, int type, iks *node)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);
   ikspak *pak = NULL;
   iks *auth = NULL;
   int features = 0;

   if(!node) {
      ast_log(LOG_ERROR, "aji_act_hook was called with out a packet\n"); /* most likely cause type is IKS_NODE_ERROR lost connection */
      ASTOBJ_UNREF(client, aji_client_destroy);
      return IKS_HOOK;
   }

   if (client->state == AJI_DISCONNECTING) {
      ASTOBJ_UNREF(client, aji_client_destroy);
      return IKS_HOOK;
   }

   pak = iks_packet(node);

   if (!client->component) { /*client */
      switch (type) {
      case IKS_NODE_START:
         if (client->usetls && !aji_is_secure(client)) {
#ifndef HAVE_OPENSSL
            ast_log(LOG_ERROR, "OpenSSL not installed. You need to install OpenSSL on this system, or disable the TLS option in your configuration file\n");
            ASTOBJ_UNREF(client, aji_client_destroy);
            return IKS_HOOK;
#else
            if (aji_start_tls(client) == IKS_NET_TLSFAIL) {
               ast_log(LOG_ERROR, "Could not start TLS\n");
               ASTOBJ_UNREF(client, aji_client_destroy);
               return IKS_HOOK;     
            }
#endif
            break;
         }
         if (!client->usesasl) {
            iks_filter_add_rule(client->f, aji_client_connect, client, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_SUBTYPE, IKS_TYPE_RESULT, IKS_RULE_ID, client->mid, IKS_RULE_DONE);
            auth = jabber_make_auth(client->jid, client->password, iks_find_attrib(node, "id"));
            if (auth) {
               iks_insert_attrib(auth, "id", client->mid);
               iks_insert_attrib(auth, "to", client->jid->server);
               ast_aji_increment_mid(client->mid);
               ast_aji_send(client, auth);
               iks_delete(auth);
            } else
               ast_log(LOG_ERROR, "Out of memory.\n");
         }
         break;

      case IKS_NODE_NORMAL:
#ifdef HAVE_OPENSSL
         if (client->stream_flags & TRY_SECURE) {
            if (!strcmp("proceed", iks_name(node))) {
               return aji_tls_handshake(client);
            }
         }
#endif
         if (!strcmp("stream:features", iks_name(node))) {
            features = iks_stream_features(node);
            if (client->usesasl) {
               if (client->usetls && !aji_is_secure(client))
                  break;
               if (client->authorized) {
                  if (features & IKS_STREAM_BIND) {
                     iks_filter_add_rule(client->f, aji_client_connect, client, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_SUBTYPE, IKS_TYPE_RESULT, IKS_RULE_DONE);
                     auth = iks_make_resource_bind(client->jid);
                     if (auth) {
                        iks_insert_attrib(auth, "id", client->mid);
                        ast_aji_increment_mid(client->mid);
                        ast_aji_send(client, auth);
                        iks_delete(auth);
                     } else {
                        ast_log(LOG_ERROR, "Out of memory.\n");
                        break;
                     }
                  }
                  if (features & IKS_STREAM_SESSION) {
                     iks_filter_add_rule (client->f, aji_client_connect, client, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_SUBTYPE, IKS_TYPE_RESULT, IKS_RULE_ID, "auth", IKS_RULE_DONE);
                     auth = iks_make_session();
                     if (auth) {
                        iks_insert_attrib(auth, "id", "auth");
                        ast_aji_increment_mid(client->mid);
                        ast_aji_send(client, auth);
                        iks_delete(auth);
                     } else {
                        ast_log(LOG_ERROR, "Out of memory.\n");
                     }
                  }
               } else {
                  int ret;
                  if (!client->jid->user) {
                     ast_log(LOG_ERROR, "Malformed Jabber ID : %s (domain missing?)\n", client->jid->full);
                     break;
                  }

                  ret = aji_start_sasl(client, features, client->jid->user, client->password);
                  if (ret != IKS_OK) {
                     ASTOBJ_UNREF(client, aji_client_destroy);
                     return IKS_HOOK;
                  }
                  break;
               }
            }
         } else if (!strcmp("failure", iks_name(node))) {
            ast_log(LOG_ERROR, "JABBER: encryption failure. possible bad password.\n");
         } else if (!strcmp("success", iks_name(node))) {
            client->authorized = 1;
            aji_send_header(client, client->jid->server);
         }
         break;
      case IKS_NODE_ERROR: 
            ast_log(LOG_ERROR, "JABBER: Node Error\n");
            ASTOBJ_UNREF(client, aji_client_destroy);
            return IKS_HOOK;
            break;
      case IKS_NODE_STOP: 
            ast_log(LOG_WARNING, "JABBER: Disconnected\n");
            ASTOBJ_UNREF(client, aji_client_destroy);
            return IKS_HOOK;
            break;
      }
   } else if (client->state != AJI_CONNECTED && client->component) {
      switch (type) {
      case IKS_NODE_START:
         if (client->state == AJI_DISCONNECTED) {
            char secret[160], shasum[320], *handshake;

            sprintf(secret, "%s%s", pak->id, client->password);
            ast_sha1_hash(shasum, secret);
            handshake = NULL;
            if (asprintf(&handshake, "<handshake>%s</handshake>", shasum) >= 0) {
               aji_send_raw(client, handshake);
               ast_free(handshake);
               handshake = NULL;
            }
            client->state = AJI_CONNECTING;
            if(aji_recv(client, 1) == 2) /*XXX proper result for iksemel library on iks_recv of <handshake/> XXX*/
               client->state = AJI_CONNECTED;
            else
               ast_log(LOG_WARNING, "Jabber didn't seem to handshake, failed to authenticate.\n");
            break;
         }
         break;

      case IKS_NODE_NORMAL:
         break;

      case IKS_NODE_ERROR:
         ast_log(LOG_ERROR, "JABBER: Node Error\n");
         ASTOBJ_UNREF(client, aji_client_destroy);
         return IKS_HOOK;

      case IKS_NODE_STOP:
         ast_log(LOG_WARNING, "JABBER: Disconnected\n");
         ASTOBJ_UNREF(client, aji_client_destroy);
         return IKS_HOOK;
      }
   }

   switch (pak->type) {
   case IKS_PAK_NONE:
      ast_debug(1, "JABBER: I don't know what to do with paktype NONE.\n");
      break;
   case IKS_PAK_MESSAGE:
      aji_handle_message(client, pak);
      ast_debug(1, "JABBER: Handling paktype MESSAGE.\n");
      break;
   case IKS_PAK_PRESENCE:
      aji_handle_presence(client, pak);
      ast_debug(1, "JABBER: Handling paktype PRESENCE\n");
      break;
   case IKS_PAK_S10N:
      aji_handle_subscribe(client, pak);
      ast_debug(1, "JABBER: Handling paktype S10N\n");
      break;
   case IKS_PAK_IQ:
      ast_debug(1, "JABBER: Handling paktype IQ\n");
      aji_handle_iq(client, node);
      break;
   default:
      ast_debug(1, "JABBER: I don't know anything about paktype '%d'\n", pak->type);
      break;
   }
   
   iks_filter_packet(client->f, pak);

   if (node)
      iks_delete(node);

   ASTOBJ_UNREF(client, aji_client_destroy);
   return IKS_OK;
}
/*!
 * \brief Unknown
 * \param data void
 * \param pak ikspak
 * \return IKS_FILTER_EAT.
*/
static int aji_register_approve_handler(void *data, ikspak *pak)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);
   iks *iq = NULL, *presence = NULL, *x = NULL;

   iq = iks_new("iq");
   presence = iks_new("presence");
   x = iks_new("x");
   if (client && iq && presence && x) {
      if (!iks_find(pak->query, "remove")) {
         iks_insert_attrib(iq, "from", client->jid->full);
         iks_insert_attrib(iq, "to", pak->from->full);
         iks_insert_attrib(iq, "id", pak->id);
         iks_insert_attrib(iq, "type", "result");
         ast_aji_send(client, iq);

         iks_insert_attrib(presence, "from", client->jid->full);
         iks_insert_attrib(presence, "to", pak->from->partial);
         iks_insert_attrib(presence, "id", client->mid);
         ast_aji_increment_mid(client->mid);
         iks_insert_attrib(presence, "type", "subscribe");
         iks_insert_attrib(x, "xmlns", "vcard-temp:x:update");
         iks_insert_node(presence, x);
         ast_aji_send(client, presence); 
      }
   } else {
      ast_log(LOG_ERROR, "Out of memory.\n");
   }


   iks_delete(iq);
   iks_delete(presence);
   iks_delete(x);
   
   ASTOBJ_UNREF(client, aji_client_destroy);
   return IKS_FILTER_EAT;
}
/*!
 * \brief register handler for incoming querys (IQ's)
 * \param data incoming aji_client request
 * \param pak ikspak
 * \return IKS_FILTER_EAT.
*/
static int aji_register_query_handler(void *data, ikspak *pak)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);
   struct aji_buddy *buddy = NULL; 
   char *node = NULL;
   iks *iq = NULL, *query = NULL;

   client = (struct aji_client *) data;

   buddy = ASTOBJ_CONTAINER_FIND(&client->buddies, pak->from->partial);
   if (!buddy) {
      iks  *error = NULL, *notacceptable = NULL;

      ast_log(LOG_ERROR, "Someone.... %s tried to register but they aren't allowed\n", pak->from->partial);
      iq = iks_new("iq");
      query = iks_new("query");
      error = iks_new("error");
      notacceptable = iks_new("not-acceptable");
      if(iq && query && error && notacceptable) {
         iks_insert_attrib(iq, "type", "error");
         iks_insert_attrib(iq, "from", client->user);
         iks_insert_attrib(iq, "to", pak->from->full);
         iks_insert_attrib(iq, "id", pak->id);
         iks_insert_attrib(query, "xmlns", "jabber:iq:register");
         iks_insert_attrib(error, "code" , "406");
         iks_insert_attrib(error, "type", "modify");
         iks_insert_attrib(notacceptable, "xmlns", "urn:ietf:params:xml:ns:xmpp-stanzas");
         iks_insert_node(iq, query);
         iks_insert_node(iq, error);
         iks_insert_node(error, notacceptable);
         ast_aji_send(client, iq);
      } else {
         ast_log(LOG_ERROR, "Out of memory.\n");
      }

      iks_delete(error);
      iks_delete(notacceptable);
   } else   if (!(node = iks_find_attrib(pak->query, "node"))) {
      iks *instructions = NULL;
      char *explain = "Welcome to Asterisk - the Open Source PBX.\n";
      iq = iks_new("iq");
      query = iks_new("query");
      instructions = iks_new("instructions");
      if (iq && query && instructions && client) {
         iks_insert_attrib(iq, "from", client->user);
         iks_insert_attrib(iq, "to", pak->from->full);
         iks_insert_attrib(iq, "id", pak->id);
         iks_insert_attrib(iq, "type", "result");
         iks_insert_attrib(query, "xmlns", "jabber:iq:register");
         iks_insert_cdata(instructions, explain, 0);
         iks_insert_node(iq, query);
         iks_insert_node(query, instructions);
         ast_aji_send(client, iq);
      } else {
         ast_log(LOG_ERROR, "Out of memory.\n");
      }

      iks_delete(instructions);
   }
   iks_delete(iq);
   iks_delete(query);
   ASTOBJ_UNREF(client, aji_client_destroy);
   return IKS_FILTER_EAT;
}

/*!
 * \brief Handles stuff
 * \param data void
 * \param pak ikspak 
 * \return IKS_FILTER_EAT.
*/
static int aji_ditems_handler(void *data, ikspak *pak)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);
   char *node = NULL;

   if (!(node = iks_find_attrib(pak->query, "node"))) {
      iks *iq = NULL, *query = NULL, *item = NULL;
      iq = iks_new("iq");
      query = iks_new("query");
      item = iks_new("item");

      if (iq && query && item) {
         iks_insert_attrib(iq, "from", client->user);
         iks_insert_attrib(iq, "to", pak->from->full);
         iks_insert_attrib(iq, "id", pak->id);
         iks_insert_attrib(iq, "type", "result");
         iks_insert_attrib(query, "xmlns", "http://jabber.org/protocol/disco#items");
         iks_insert_attrib(item, "node", "http://jabber.org/protocol/commands");
         iks_insert_attrib(item, "name", "Million Dollar Asterisk Commands");
         iks_insert_attrib(item, "jid", client->user);

         iks_insert_node(iq, query);
         iks_insert_node(query, item);
         ast_aji_send(client, iq);
      } else {
         ast_log(LOG_ERROR, "Out of memory.\n");
      }

      iks_delete(iq);
      iks_delete(query);
      iks_delete(item);

   } else if (!strcasecmp(node, "http://jabber.org/protocol/commands")) {
      iks *iq, *query, *confirm;
      iq = iks_new("iq");
      query = iks_new("query");
      confirm = iks_new("item");
      if (iq && query && confirm && client) {
         iks_insert_attrib(iq, "from", client->user);
         iks_insert_attrib(iq, "to", pak->from->full);
         iks_insert_attrib(iq, "id", pak->id);
         iks_insert_attrib(iq, "type", "result");
         iks_insert_attrib(query, "xmlns", "http://jabber.org/protocol/disco#items");
         iks_insert_attrib(query, "node", "http://jabber.org/protocol/commands");
         iks_insert_attrib(confirm, "node", "confirmaccount");
         iks_insert_attrib(confirm, "name", "Confirm AIM account");
         iks_insert_attrib(confirm, "jid", "blog.astjab.org");

         iks_insert_node(iq, query);
         iks_insert_node(query, confirm);
         ast_aji_send(client, iq);
      } else {
         ast_log(LOG_ERROR, "Out of memory.\n");
      }

      iks_delete(iq);
      iks_delete(query);
      iks_delete(confirm);

   } else if (!strcasecmp(node, "confirmaccount")) {
      iks *iq = NULL, *query = NULL, *feature = NULL;

      iq = iks_new("iq");
      query = iks_new("query");
      feature = iks_new("feature");

      if (iq && query && feature && client) {
         iks_insert_attrib(iq, "from", client->user);
         iks_insert_attrib(iq, "to", pak->from->full);
         iks_insert_attrib(iq, "id", pak->id);
         iks_insert_attrib(iq, "type", "result");
         iks_insert_attrib(query, "xmlns", "http://jabber.org/protocol/disco#items");
         iks_insert_attrib(feature, "var", "http://jabber.org/protocol/commands");
         iks_insert_node(iq, query);
         iks_insert_node(query, feature);
         ast_aji_send(client, iq);
      } else {
         ast_log(LOG_ERROR, "Out of memory.\n");
      }

      iks_delete(iq);
      iks_delete(query);
      iks_delete(feature);
   }

   ASTOBJ_UNREF(client, aji_client_destroy);
   return IKS_FILTER_EAT;

}
/*!
 * \brief Handle add extra info
 * \param data void
 * \param pak ikspak
 * \return IKS_FILTER_EAT
*/
static int aji_client_info_handler(void *data, ikspak *pak)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);
   struct aji_resource *resource = NULL;
   struct aji_buddy *buddy = ASTOBJ_CONTAINER_FIND(&client->buddies, pak->from->partial);

   resource = aji_find_resource(buddy, pak->from->resource);
   if (pak->subtype == IKS_TYPE_RESULT) {
      if (!resource) {
         ast_log(LOG_NOTICE, "JABBER: Received client info from %s when not requested.\n", pak->from->full);
         ASTOBJ_UNREF(client, aji_client_destroy);
         return IKS_FILTER_EAT;
      }
      if (iks_find_with_attrib(pak->query, "feature", "var", "http://www.google.com/xmpp/protocol/voice/v1")) {
         resource->cap->jingle = 1;
      } else
         resource->cap->jingle = 0;
   } else if (pak->subtype == IKS_TYPE_GET) {
      iks *iq, *disco, *ident, *google, *query;
      iq = iks_new("iq");
      query = iks_new("query");
      ident = iks_new("identity");
      disco = iks_new("feature");
      google = iks_new("feature");
      if (iq && ident && disco && google) {
         iks_insert_attrib(iq, "from", client->jid->full);
         iks_insert_attrib(iq, "to", pak->from->full);
         iks_insert_attrib(iq, "type", "result");
         iks_insert_attrib(iq, "id", pak->id);
         iks_insert_attrib(query, "xmlns", "http://jabber.org/protocol/disco#info");
         iks_insert_attrib(ident, "category", "client");
         iks_insert_attrib(ident, "type", "pc");
         iks_insert_attrib(ident, "name", "asterisk");
         iks_insert_attrib(disco, "var", "http://jabber.org/protocol/disco#info");
         iks_insert_attrib(google, "var", "http://www.google.com/xmpp/protocol/voice/v1");
         iks_insert_node(iq, query);
         iks_insert_node(query, ident);
         iks_insert_node(query, google);
         iks_insert_node(query, disco);
         ast_aji_send(client, iq);
      } else
         ast_log(LOG_ERROR, "Out of Memory.\n");

      iks_delete(iq);
      iks_delete(query);
      iks_delete(ident);
      iks_delete(google);
      iks_delete(disco);
   } else if (pak->subtype == IKS_TYPE_ERROR) {
      ast_log(LOG_NOTICE, "User %s does not support discovery.\n", pak->from->full);
   }
   ASTOBJ_UNREF(client, aji_client_destroy);
   return IKS_FILTER_EAT;
}
/*!
 * \brief Handler of the return info packet
 * \param data aji_client
 * \param pak ikspak
 * \return IKS_FILTER_EAT
*/
static int aji_dinfo_handler(void *data, ikspak *pak)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);
   char *node = NULL;
   struct aji_resource *resource = NULL;
   struct aji_buddy *buddy = ASTOBJ_CONTAINER_FIND(&client->buddies, pak->from->partial);

   resource = aji_find_resource(buddy, pak->from->resource);
   if (pak->subtype == IKS_TYPE_ERROR) {
      ast_log(LOG_WARNING, "Received error from a client, turn on jabber debug!\n");
      return IKS_FILTER_EAT;
   }
   if (pak->subtype == IKS_TYPE_RESULT) {
      if (!resource) {
         ast_log(LOG_NOTICE,"JABBER: Received client info from %s when not requested.\n", pak->from->full);
         ASTOBJ_UNREF(client, aji_client_destroy);
         return IKS_FILTER_EAT;
      }
      if (iks_find_with_attrib(pak->query, "feature", "var", "http://www.google.com/xmpp/protocol/voice/v1")) {
         resource->cap->jingle = 1;
      } else
         resource->cap->jingle = 0;
   } else if (pak->subtype == IKS_TYPE_GET && !(node = iks_find_attrib(pak->query, "node"))) {
      iks *iq, *query, *identity, *disco, *reg, *commands, *gateway, *version, *vcard, *search;

      iq = iks_new("iq");
      query = iks_new("query");
      identity = iks_new("identity");
      disco = iks_new("feature");
      reg = iks_new("feature");
      commands = iks_new("feature");
      gateway = iks_new("feature");
      version = iks_new("feature");
      vcard = iks_new("feature");
      search = iks_new("feature");

      if (iq && query && identity && disco && reg && commands && gateway && version && vcard && search && client) {
         iks_insert_attrib(iq, "from", client->user);
         iks_insert_attrib(iq, "to", pak->from->full);
         iks_insert_attrib(iq, "id", pak->id);
         iks_insert_attrib(iq, "type", "result");
         iks_insert_attrib(query, "xmlns", "http://jabber.org/protocol/disco#info");
         iks_insert_attrib(identity, "category", "gateway");
         iks_insert_attrib(identity, "type", "pstn");
         iks_insert_attrib(identity, "name", "Asterisk The Open Source PBX");
         iks_insert_attrib(disco, "var", "http://jabber.org/protocol/disco");
         iks_insert_attrib(reg, "var", "jabber:iq:register");
         iks_insert_attrib(commands, "var", "http://jabber.org/protocol/commands");
         iks_insert_attrib(gateway, "var", "jabber:iq:gateway");
         iks_insert_attrib(version, "var", "jabber:iq:version");
         iks_insert_attrib(vcard, "var", "vcard-temp");
         iks_insert_attrib(search, "var", "jabber:iq:search");

         iks_insert_node(iq, query);
         iks_insert_node(query, identity);
         iks_insert_node(query, disco);
         iks_insert_node(query, reg);
         iks_insert_node(query, commands);
         iks_insert_node(query, gateway);
         iks_insert_node(query, version);
         iks_insert_node(query, vcard);
         iks_insert_node(query, search);
         ast_aji_send(client, iq);
      } else {
         ast_log(LOG_ERROR, "Out of memory.\n");
      }

      iks_delete(iq);
      iks_delete(query);
      iks_delete(identity);
      iks_delete(disco);
      iks_delete(reg);
      iks_delete(commands);
      iks_delete(gateway);
      iks_delete(version);
      iks_delete(vcard);
      iks_delete(search);

   } else if (pak->subtype == IKS_TYPE_GET && !strcasecmp(node, "http://jabber.org/protocol/commands")) {
      iks *iq, *query, *confirm;
      iq = iks_new("iq");
      query = iks_new("query");
      confirm = iks_new("item");

      if (iq && query && confirm && client) {
         iks_insert_attrib(iq, "from", client->user);
         iks_insert_attrib(iq, "to", pak->from->full);
         iks_insert_attrib(iq, "id", pak->id);
         iks_insert_attrib(iq, "type", "result");
         iks_insert_attrib(query, "xmlns", "http://jabber.org/protocol/disco#items");
         iks_insert_attrib(query, "node", "http://jabber.org/protocol/commands");
         iks_insert_attrib(confirm, "node", "confirmaccount");
         iks_insert_attrib(confirm, "name", "Confirm AIM account");
         iks_insert_attrib(confirm, "jid", client->user);
         iks_insert_node(iq, query);
         iks_insert_node(query, confirm);
         ast_aji_send(client, iq);
      } else {
         ast_log(LOG_ERROR, "Out of memory.\n");
      }

      iks_delete(iq);
      iks_delete(query);
      iks_delete(confirm);

   } else if (pak->subtype == IKS_TYPE_GET && !strcasecmp(node, "confirmaccount")) {
      iks *iq, *query, *feature;

      iq = iks_new("iq");
      query = iks_new("query");
      feature = iks_new("feature");

      if (iq && query && feature && client) {
         iks_insert_attrib(iq, "from", client->user);
         iks_insert_attrib(iq, "to", pak->from->full);
         iks_insert_attrib(iq, "id", pak->id);
         iks_insert_attrib(iq, "type", "result");
         iks_insert_attrib(query, "xmlns", "http://jabber.org/protocol/disco#info");
         iks_insert_attrib(feature, "var", "http://jabber.org/protocol/commands");
         iks_insert_node(iq, query);
         iks_insert_node(query, feature);
         ast_aji_send(client, iq);
      } else {
         ast_log(LOG_ERROR, "Out of memory.\n");
      }

      iks_delete(iq);
      iks_delete(query);
      iks_delete(feature);
   }

   ASTOBJ_UNREF(client, aji_client_destroy);
   return IKS_FILTER_EAT;
}

/*!
 * \brief Handles \verbatim <iq> \endverbatim tags.
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param node iks 
 * \return void.
 */
static void aji_handle_iq(struct aji_client *client, iks *node)
{
   /*Nothing to see here */
}

/*!
 * \brief Handles presence packets.
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param pak ikspak the node
 */
static void aji_handle_message(struct aji_client *client, ikspak *pak)
{
   struct aji_message *insert, *tmp;
   int flag = 0;
   
   if (!(insert = ast_calloc(1, sizeof(*insert))))
      return;
   time(&insert->arrived);
   if (iks_find_cdata(pak->x, "body"))
      insert->message = ast_strdup(iks_find_cdata(pak->x, "body"));
   if (pak->id)
      ast_copy_string(insert->id, pak->id, sizeof(insert->message));
   if (pak->from)
      insert->from = ast_strdup(pak->from->full);
   AST_LIST_LOCK(&client->messages);
   AST_LIST_TRAVERSE_SAFE_BEGIN(&client->messages, tmp, list) {
      if (flag) {
         AST_LIST_REMOVE_CURRENT(list);
         if (tmp->from)
            ast_free(tmp->from);
         if (tmp->message)
            ast_free(tmp->message);
      } else if (difftime(time(NULL), tmp->arrived) >= client->message_timeout) {
         flag = 1;
         AST_LIST_REMOVE_CURRENT(list);
         if (tmp->from)
            ast_free(tmp->from);
         if (tmp->message)
            ast_free(tmp->message);
      }
   }
   AST_LIST_TRAVERSE_SAFE_END;
   AST_LIST_INSERT_HEAD(&client->messages, insert, list);
   AST_LIST_UNLOCK(&client->messages);
}
/*!
 * \brief Check the presence info
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param pak ikspak
*/
static void aji_handle_presence(struct aji_client *client, ikspak *pak)
{
   int status, priority;
   struct aji_buddy *buddy;
   struct aji_resource *tmp = NULL, *last = NULL, *found = NULL;
   char *ver, *node, *descrip, *type;
   
   if(client->state != AJI_CONNECTED)
      aji_create_buddy(pak->from->partial, client);

   buddy = ASTOBJ_CONTAINER_FIND(&client->buddies, pak->from->partial);
   if (!buddy && pak->from->partial) {
      /* allow our jid to be used to log in with another resource */
      if (!strcmp((const char *)pak->from->partial, (const char *)client->jid->partial))
         aji_create_buddy(pak->from->partial, client);
      else
         ast_log(LOG_NOTICE, "Got presence packet from %s, someone not in our roster!!!!\n", pak->from->partial);
      return;
   }
   type = iks_find_attrib(pak->x, "type");
   if(client->component && type &&!strcasecmp("probe", type)) {
      aji_set_presence(client, pak->from->full, iks_find_attrib(pak->x, "to"), client->status, client->statusmessage);
      ast_verbose("what i was looking for \n");
   }
   ASTOBJ_WRLOCK(buddy);
   status = (pak->show) ? pak->show : 6;
   priority = atoi((iks_find_cdata(pak->x, "priority")) ? iks_find_cdata(pak->x, "priority") : "0");
   tmp = buddy->resources;
   descrip = ast_strdup(iks_find_cdata(pak->x,"status"));

   while (tmp && pak->from->resource) {
      if (!strcasecmp(tmp->resource, pak->from->resource)) {
         tmp->status = status;
         if (tmp->description) ast_free(tmp->description);
         tmp->description = descrip;
         found = tmp;
         if (status == 6) {   /* Sign off Destroy resource */
            if (last && found->next) {
               last->next = found->next;
            } else if (!last) {
               if (found->next)
                  buddy->resources = found->next;
               else
                  buddy->resources = NULL;
            } else if (!found->next) {
               if (last)
                  last->next = NULL;
               else
                  buddy->resources = NULL;
            }
            ast_free(found);
            found = NULL;
            break;
         }
         /* resource list is sorted by descending priority */
         if (tmp->priority != priority) {
            found->priority = priority;
            if (!last && !found->next)
               /* resource was found to be unique,
                  leave loop */
               break;
            /* search for resource in our list
               and take it out for the moment */
            if (last)
               last->next = found->next;
            else
               buddy->resources = found->next;

            last = NULL;
            tmp = buddy->resources;
            if (!buddy->resources)
               buddy->resources = found;
            /* priority processing */
            while (tmp) {
               /* insert resource back according to 
                  its priority value */
               if (found->priority > tmp->priority) {
                  if (last)
                     /* insert within list */
                     last->next = found;
                  found->next = tmp;
                  if (!last)
                     /* insert on top */
                     buddy->resources = found;
                  break;
               }
               if (!tmp->next) {
                  /* insert at the end of the list */
                  tmp->next = found;
                  found->next = NULL;
                  break;
               }
               last = tmp;
               tmp = tmp->next;
            }
         }
         break;
      }
      last = tmp;
      tmp = tmp->next;
   }

   /* resource not found in our list, create it */
   if (!found && status != 6 && pak->from->resource) {
      found = ast_calloc(1, sizeof(*found));

      if (!found) {
         ast_log(LOG_ERROR, "Out of memory!\n");
         return;
      }
      ast_copy_string(found->resource, pak->from->resource, sizeof(found->resource));
      found->status = status;
      found->description = descrip;
      found->priority = priority;
      found->next = NULL;
      last = NULL;
      tmp = buddy->resources;
      while (tmp) {
         if (found->priority > tmp->priority) {
            if (last)
               last->next = found;
            found->next = tmp;
            if (!last)
               buddy->resources = found;
            break;
         }
         if (!tmp->next) {
            tmp->next = found;
            break;
         }
         last = tmp;
         tmp = tmp->next;
      }
      if (!tmp)
         buddy->resources = found;
   }
   
   ASTOBJ_UNLOCK(buddy);
   ASTOBJ_UNREF(buddy, aji_buddy_destroy);

   node = iks_find_attrib(iks_find(pak->x, "c"), "node");
   ver = iks_find_attrib(iks_find(pak->x, "c"), "ver");

   /* handle gmail client's special caps:c tag */
   if (!node && !ver) {
      node = iks_find_attrib(iks_find(pak->x, "caps:c"), "node");
      ver = iks_find_attrib(iks_find(pak->x, "caps:c"), "ver");
   }

   /* retrieve capabilites of the new resource */
   if(status !=6 && found && !found->cap) {
      found->cap = aji_find_version(node, ver, pak);
      if(gtalk_yuck(pak->x)) /* gtalk should do discover */
         found->cap->jingle = 1;
      if(found->cap->jingle && option_debug > 4) {
         ast_debug(1,"Special case for google till they support discover.\n");
      }
      else {
         iks *iq, *query;
         iq = iks_new("iq");
         query = iks_new("query");
         if(query && iq)  {
            iks_insert_attrib(iq, "type", "get");
            iks_insert_attrib(iq, "to", pak->from->full);
            iks_insert_attrib(iq,"from", client->jid->full);
            iks_insert_attrib(iq, "id", client->mid);
            ast_aji_increment_mid(client->mid);
            iks_insert_attrib(query, "xmlns", "http://jabber.org/protocol/disco#info");
            iks_insert_node(iq, query);
            ast_aji_send(client, iq);
            
         } else
            ast_log(LOG_ERROR, "Out of memory.\n");
         
         iks_delete(query);
         iks_delete(iq);
      }
   }
   switch (pak->subtype) {
   case IKS_TYPE_AVAILABLE:
      ast_debug(3, "JABBER: I am available ^_* %i\n", pak->subtype);
      break;
   case IKS_TYPE_UNAVAILABLE:
      ast_debug(3, "JABBER: I am unavailable ^_* %i\n", pak->subtype);
      break;
   default:
      ast_debug(3, "JABBER: Ohh sexy and the wrong type: %i\n", pak->subtype);
   }
   switch (pak->show) {
   case IKS_SHOW_UNAVAILABLE:
      ast_debug(3, "JABBER: type: %i subtype %i\n", pak->subtype, pak->show);
      break;
   case IKS_SHOW_AVAILABLE:
      ast_debug(3, "JABBER: type is available\n");
      break;
   case IKS_SHOW_CHAT:
      ast_debug(3, "JABBER: type: %i subtype %i\n", pak->subtype, pak->show);
      break;
   case IKS_SHOW_AWAY:
      ast_debug(3, "JABBER: type is away\n");
      break;
   case IKS_SHOW_XA:
      ast_debug(3, "JABBER: type: %i subtype %i\n", pak->subtype, pak->show);
      break;
   case IKS_SHOW_DND:
      ast_debug(3, "JABBER: type: %i subtype %i\n", pak->subtype, pak->show);
      break;
   default:
      ast_debug(3, "JABBER: Kinky! how did that happen %i\n", pak->show);
   }
}

/*!
 * \brief handles subscription requests.
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param pak ikspak iksemel packet.
 * \return void.
 */
static void aji_handle_subscribe(struct aji_client *client, ikspak *pak)
{
   iks *presence = NULL, *status = NULL;
   struct aji_buddy* buddy = NULL;

   switch (pak->subtype) { 
   case IKS_TYPE_SUBSCRIBE:
      presence = iks_new("presence");
      status = iks_new("status");
      if (presence && status) {
         iks_insert_attrib(presence, "type", "subscribed");
         iks_insert_attrib(presence, "to", pak->from->full);
         iks_insert_attrib(presence, "from", client->jid->full);
         if (pak->id)
            iks_insert_attrib(presence, "id", pak->id);
         iks_insert_cdata(status, "Asterisk has approved subscription", 0);
         iks_insert_node(presence, status);
         ast_aji_send(client, presence);
      } else
         ast_log(LOG_ERROR, "Unable to allocate nodes\n");

      iks_delete(presence);
      iks_delete(status);

      if (client->component)
         aji_set_presence(client, pak->from->full, iks_find_attrib(pak->x, "to"), client->status, client->statusmessage);
   case IKS_TYPE_SUBSCRIBED:
      buddy = ASTOBJ_CONTAINER_FIND(&client->buddies, pak->from->partial);
      if (!buddy && pak->from->partial) {
         aji_create_buddy(pak->from->partial, client);
      }
   default:
      if (option_verbose > 4) {
         ast_verbose(VERBOSE_PREFIX_3 "JABBER: This is a subcription of type %i\n", pak->subtype);
      }
   }
}

/*!
 * \brief sends messages.
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param address
 * \param message
 * \return 1.
 */
int ast_aji_send_chat(struct aji_client *client, const char *address, const char *message)
{
   int res = 0;
   iks *message_packet = NULL;
   if (client->state == AJI_CONNECTED) {
      message_packet = iks_make_msg(IKS_TYPE_CHAT, address, message);
      if (message_packet) {
         iks_insert_attrib(message_packet, "from", client->jid->full);
         res = ast_aji_send(client, message_packet);
      } else {
         ast_log(LOG_ERROR, "Out of memory.\n");
      }

      iks_delete(message_packet);
   } else
      ast_log(LOG_WARNING, "JABBER: Not connected can't send\n");
   return 1;
}

/*!
 * \brief create a chatroom.
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param room name of room
 * \param server name of server
 * \param topic topic for the room.
 * \return 0.
 */
int ast_aji_create_chat(struct aji_client *client, char *room, char *server, char *topic)
{
   int res = 0;
   iks *iq = NULL;
   iq = iks_new("iq");

   if (iq && client) {
      iks_insert_attrib(iq, "type", "get");
      iks_insert_attrib(iq, "to", server);
      iks_insert_attrib(iq, "id", client->mid);
      ast_aji_increment_mid(client->mid);
      ast_aji_send(client, iq);
   } else 
      ast_log(LOG_ERROR, "Out of memory.\n");

   iks_delete(iq);

   return res;
}

/*!
 * \brief join a chatroom.
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param room room to join
 * \return res.
 */
int ast_aji_join_chat(struct aji_client *client, char *room)
{
   int res = 0;
   iks *presence = NULL, *priority = NULL;
   presence = iks_new("presence");
   priority = iks_new("priority");
   if (presence && priority && client) {
      iks_insert_cdata(priority, "0", 1);
      iks_insert_attrib(presence, "to", room);
      iks_insert_node(presence, priority);
      res = ast_aji_send(client, presence);
      iks_insert_cdata(priority, "5", 1);
      iks_insert_attrib(presence, "to", room);
      res = ast_aji_send(client, presence);
   } else 
      ast_log(LOG_ERROR, "Out of memory.\n");
   
   iks_delete(presence);
   iks_delete(priority);
   
   return res;
}

/*!
 * \brief invite to a chatroom.
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param user 
 * \param room
 * \param message
 * \return res.
 */
int ast_aji_invite_chat(struct aji_client *client, char *user, char *room, char *message)
{
   int res = 0;
   iks *invite, *body, *namespace;

   invite = iks_new("message");
   body = iks_new("body");
   namespace = iks_new("x");
   if (client && invite && body && namespace) {
      iks_insert_attrib(invite, "to", user);
      iks_insert_attrib(invite, "id", client->mid);
      ast_aji_increment_mid(client->mid);
      iks_insert_cdata(body, message, 0);
      iks_insert_attrib(namespace, "xmlns", "jabber:x:conference");
      iks_insert_attrib(namespace, "jid", room);
      iks_insert_node(invite, body);
      iks_insert_node(invite, namespace);
      res = ast_aji_send(client, invite);
   } else 
      ast_log(LOG_ERROR, "Out of memory.\n");

   iks_delete(body);
   iks_delete(namespace);
   iks_delete(invite);
   
   return res;
}


/*!
 * \brief receive message loop.
 * \param data void
 * \return void.
 */
static void *aji_recv_loop(void *data)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);
   int res = IKS_HOOK;

   while(res != IKS_OK) {
      ast_debug(3, "JABBER: Connecting.\n");
      res = aji_reconnect(client);
      sleep(4);
   }

   do {
      if (res == IKS_NET_RWERR || client->timeout == 0) {
         while(res != IKS_OK) {
            ast_debug(3, "JABBER: reconnecting.\n");
            res = aji_reconnect(client);
            sleep(4);
         }
      }

      res = aji_recv(client, 1);
      
      if (client->state == AJI_DISCONNECTING) {
         ast_debug(2, "Ending our Jabber client's thread due to a disconnect\n");
         pthread_exit(NULL);
      }

      /* Decrease timeout if no data received */
      if (res == IKS_NET_EXPIRED)
         client->timeout--;

      if (res == IKS_HOOK) 
         ast_log(LOG_WARNING, "JABBER: Got hook event.\n");
      else if (res == IKS_NET_TLSFAIL)
         ast_log(LOG_ERROR, "JABBER:  Failure in TLS.\n");
      else if (client->timeout == 0 && client->state == AJI_CONNECTED) {
         res = client->keepalive ? aji_send_raw(client, " ") : IKS_OK;
         if(res == IKS_OK)
            client->timeout = 50;
         else
            ast_log(LOG_WARNING, "JABBER:  Network Timeout\n");
      } else if (res == IKS_NET_RWERR)
         ast_log(LOG_WARNING, "JABBER: socket read error\n");
   } while (client);
   ASTOBJ_UNREF(client, aji_client_destroy);
   return 0;
}

/*!
 * \brief increments the mid field for messages and other events.
 * \param mid char.
 * \return void.
 */
void ast_aji_increment_mid(char *mid)
{
   int i = 0;

   for (i = strlen(mid) - 1; i >= 0; i--) {
      if (mid[i] != 'z') {
         mid[i] = mid[i] + 1;
         i = 0;
      } else
         mid[i] = 'a';
   }
}

#if 0
/*!
 * \brief attempts to register to a transport.
 * \param aji_client struct, and xml packet.
 * \return IKS_FILTER_EAT.
 */
/*allows for registering to transport , was too sketch and is out for now. */
static int aji_register_transport(void *data, ikspak *pak)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);
   int res = 0;
   struct aji_buddy *buddy = NULL;
   iks *send = iks_make_iq(IKS_TYPE_GET, "jabber:iq:register");

   if (client && send) {
      ASTOBJ_CONTAINER_TRAVERSE(&client->buddies, 1, {
         ASTOBJ_RDLOCK(iterator); 
         if (iterator->btype == AJI_TRANS) {
              buddy = iterator;
         }
         ASTOBJ_UNLOCK(iterator);
      });
      iks_filter_remove_hook(client->f, aji_register_transport);
      iks_filter_add_rule(client->f, aji_register_transport2, client, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_SUBTYPE, IKS_TYPE_RESULT, IKS_RULE_NS, IKS_NS_REGISTER, IKS_RULE_DONE);
      iks_insert_attrib(send, "to", buddy->host);
      iks_insert_attrib(send, "id", client->mid);
      ast_aji_increment_mid(client->mid);
      iks_insert_attrib(send, "from", client->user);
      res = ast_aji_send(client, send);
   } else 
      ast_log(LOG_ERROR, "Out of memory.\n");

   if (send)
      iks_delete(send);
   ASTOBJ_UNREF(client, aji_client_destroy);
   return IKS_FILTER_EAT;

}
/*!
 * \brief attempts to register to a transport step 2.
 * \param aji_client struct, and xml packet.
 * \return IKS_FILTER_EAT.
 */
/* more of the same blob of code, too wonky for now*/
static int aji_register_transport2(void *data, ikspak *pak)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);
   int res = 0;
   struct aji_buddy *buddy = NULL;

   iks *regiq = iks_new("iq");
   iks *regquery = iks_new("query");
   iks *reguser = iks_new("username");
   iks *regpass = iks_new("password");

   if (client && regquery && reguser && regpass && regiq) {
      ASTOBJ_CONTAINER_TRAVERSE(&client->buddies, 1, {
         ASTOBJ_RDLOCK(iterator);
         if (iterator->btype == AJI_TRANS)
            buddy = iterator; ASTOBJ_UNLOCK(iterator);
      });
      iks_filter_remove_hook(client->f, aji_register_transport2);
      iks_insert_attrib(regiq, "to", buddy->host);
      iks_insert_attrib(regiq, "type", "set");
      iks_insert_attrib(regiq, "id", client->mid);
      ast_aji_increment_mid(client->mid);
      iks_insert_attrib(regiq, "from", client->user);
      iks_insert_attrib(regquery, "xmlns", "jabber:iq:register");
      iks_insert_cdata(reguser, buddy->user, 0);
      iks_insert_cdata(regpass, buddy->pass, 0);
      iks_insert_node(regiq, regquery);
      iks_insert_node(regquery, reguser);
      iks_insert_node(regquery, regpass);
      res = ast_aji_send(client, regiq);
   } else
      ast_log(LOG_ERROR, "Out of memory.\n");
   if (regiq)
      iks_delete(regiq);
   if (regquery)
      iks_delete(regquery);
   if (reguser)
      iks_delete(reguser);
   if (regpass)
      iks_delete(regpass);
   ASTOBJ_UNREF(client, aji_client_destroy);
   return IKS_FILTER_EAT;
}
#endif

/*!
 * \brief goes through roster and prunes users not needed in list, or adds them accordingly.
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \return void.
 * \note The messages here should be configurable.
 */
static void aji_pruneregister(struct aji_client *client)
{
   int res = 0;
   iks *removeiq = iks_new("iq");
   iks *removequery = iks_new("query");
   iks *removeitem = iks_new("item");
   iks *send = iks_make_iq(IKS_TYPE_GET, "http://jabber.org/protocol/disco#items");
   if (!client || !removeiq || !removequery || !removeitem || !send) {
      ast_log(LOG_ERROR, "Out of memory.\n");
      goto safeout;
   }

   iks_insert_node(removeiq, removequery);
   iks_insert_node(removequery, removeitem);
   ASTOBJ_CONTAINER_TRAVERSE(&client->buddies, 1, {
      ASTOBJ_RDLOCK(iterator);
      /* For an aji_buddy, both AUTOPRUNE and AUTOREGISTER will never
       * be called at the same time */
      if (ast_test_flag(&iterator->flags, AJI_AUTOPRUNE)) { /* If autoprune is set on jabber.conf */
         res = ast_aji_send(client, iks_make_s10n(IKS_TYPE_UNSUBSCRIBE, iterator->name,
                         "GoodBye. Your status is no longer needed by Asterisk the Open Source PBX"
                         " so I am no longer subscribing to your presence.\n"));
         res = ast_aji_send(client, iks_make_s10n(IKS_TYPE_UNSUBSCRIBED, iterator->name,
                         "GoodBye.  You are no longer in the Asterisk config file so I am removing"
                         " your access to my presence.\n"));
         iks_insert_attrib(removeiq, "from", client->jid->full); 
         iks_insert_attrib(removeiq, "type", "set"); 
         iks_insert_attrib(removequery, "xmlns", "jabber:iq:roster");
         iks_insert_attrib(removeitem, "jid", iterator->name);
         iks_insert_attrib(removeitem, "subscription", "remove");
         res = ast_aji_send(client, removeiq);
      } else if (ast_test_flag(&iterator->flags, AJI_AUTOREGISTER)) {
         res = ast_aji_send(client, iks_make_s10n(IKS_TYPE_SUBSCRIBE, iterator->name, 
                         "Greetings! I am the Asterisk Open Source PBX and I want to subscribe to your presence\n"));
         ast_clear_flag(&iterator->flags, AJI_AUTOREGISTER);
      }
      ASTOBJ_UNLOCK(iterator);
   });

 safeout:
   iks_delete(removeiq);
   iks_delete(removequery);
   iks_delete(removeitem);
   iks_delete(send);
   
   ASTOBJ_CONTAINER_PRUNE_MARKED(&client->buddies, aji_buddy_destroy);
}

/*!
 * \brief filters the roster packet we get back from server.
 * \param data void
 * \param pak ikspak iksemel packet.
 * \return IKS_FILTER_EAT.
 */
static int aji_filter_roster(void *data, ikspak *pak)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);
   int flag = 0;
   iks *x = NULL;
   struct aji_buddy *buddy;
   
   client->state = AJI_CONNECTED;
   ASTOBJ_CONTAINER_TRAVERSE(&client->buddies, 1, {
      ASTOBJ_RDLOCK(iterator);
      x = iks_child(pak->query);
      flag = 0;
      while (x) {
         if (!iks_strcmp(iks_name(x), "item")) {
            if (!strcasecmp(iterator->name, iks_find_attrib(x, "jid"))) {
               flag = 1;
               ast_clear_flag(&iterator->flags, AJI_AUTOPRUNE | AJI_AUTOREGISTER);
            }
         }
         x = iks_next(x);
      }
      if (!flag)
         ast_copy_flags(&iterator->flags, &client->flags, AJI_AUTOREGISTER);
      iks_delete(x);
      
      ASTOBJ_UNLOCK(iterator);
   });

   x = iks_child(pak->query);
   while (x) {
      flag = 0;
      if (iks_strcmp(iks_name(x), "item") == 0) {
         ASTOBJ_CONTAINER_TRAVERSE(&client->buddies, 1, {
            ASTOBJ_RDLOCK(iterator);
            if (!strcasecmp(iterator->name, iks_find_attrib(x, "jid")))
               flag = 1;
            ASTOBJ_UNLOCK(iterator);
         });

         if (flag) {
            /* found buddy, don't create a new one */
            x = iks_next(x);
            continue;
         }
         
         buddy = ast_calloc(1, sizeof(*buddy));
         if (!buddy) {
            ast_log(LOG_WARNING, "Out of memory\n");
            return 0;
         }
         ASTOBJ_INIT(buddy);
         ASTOBJ_WRLOCK(buddy);
         ast_copy_string(buddy->name, iks_find_attrib(x, "jid"), sizeof(buddy->name));
         ast_clear_flag(&buddy->flags, AST_FLAGS_ALL);
         if(ast_test_flag(&client->flags, AJI_AUTOPRUNE)) {
            ast_set_flag(&buddy->flags, AJI_AUTOPRUNE);
            ASTOBJ_MARK(buddy);
         } else if (!iks_strcmp(iks_find_attrib(x, "subscription"), "none") || !iks_strcmp(iks_find_attrib(x, "subscription"), "from")) {
            /* subscribe to buddy's presence only 
               if we really need to */
            ast_set_flag(&buddy->flags, AJI_AUTOREGISTER);
         }
         ASTOBJ_UNLOCK(buddy);
         if (buddy) {
            ASTOBJ_CONTAINER_LINK(&client->buddies, buddy);
            ASTOBJ_UNREF(buddy, aji_buddy_destroy);
         }
      }
      x = iks_next(x);
   }

   iks_delete(x);
   aji_pruneregister(client);

   ASTOBJ_UNREF(client, aji_client_destroy);
   return IKS_FILTER_EAT;
}

/*!
 * \brief reconnect to jabber server
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \return res.
*/
static int aji_reconnect(struct aji_client *client)
{
   int res = 0;

   if (client->state)
      client->state = AJI_DISCONNECTED;
   client->timeout=50;
   if (client->p)
      iks_parser_reset(client->p);
   if (client->authorized)
      client->authorized = 0;

   res = aji_initialize(client);

   return res;
}

/*!
 * \brief Get the roster of jabber users
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \return 1.
*/
static int aji_get_roster(struct aji_client *client)
{
   iks *roster = NULL;
   roster = iks_make_iq(IKS_TYPE_GET, IKS_NS_ROSTER);

   if(roster) {
      iks_insert_attrib(roster, "id", "roster");
      aji_set_presence(client, NULL, client->jid->full, client->status, client->statusmessage);
      ast_aji_send(client, roster);
   }

   iks_delete(roster);
   
   return 1;
}

/*!
 * \brief connects as a client to jabber server.
 * \param data void
 * \param pak ikspak iksemel packet
 * \return res.
 */
static int aji_client_connect(void *data, ikspak *pak)
{
   struct aji_client *client = ASTOBJ_REF((struct aji_client *) data);
   int res = 0;

   if (client) {
      if (client->state == AJI_DISCONNECTED) {
         iks_filter_add_rule(client->f, aji_filter_roster, client, IKS_RULE_TYPE, IKS_PAK_IQ, IKS_RULE_SUBTYPE, IKS_TYPE_RESULT, IKS_RULE_ID, "roster", IKS_RULE_DONE);
         client->state = AJI_CONNECTING;
         client->jid = (iks_find_cdata(pak->query, "jid")) ? iks_id_new(client->stack, iks_find_cdata(pak->query, "jid")) : client->jid;
         iks_filter_remove_hook(client->f, aji_client_connect);
         if(!client->component) /*client*/
            aji_get_roster(client);
      }
   } else
      ast_log(LOG_ERROR, "Out of memory.\n");

   ASTOBJ_UNREF(client, aji_client_destroy);
   return res;
}

/*!
 * \brief prepares client for connect.
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \return 1.
 */
static int aji_initialize(struct aji_client *client)
{
   int connected = IKS_NET_NOCONN;

#ifdef HAVE_OPENSSL  
   /* reset stream flags */
   client->stream_flags = 0;
#endif
   /* If it's a component, connect to user, otherwise, connect to server */
   connected = iks_connect_via(client->p, S_OR(client->serverhost, client->jid->server), client->port, client->component ? client->user : client->jid->server);

   if (connected == IKS_NET_NOCONN) {
      ast_log(LOG_ERROR, "JABBER ERROR: No Connection\n");
      return IKS_HOOK;
   } else   if (connected == IKS_NET_NODNS) {
      ast_log(LOG_ERROR, "JABBER ERROR: No DNS %s for client to  %s\n", client->name, S_OR(client->serverhost, client->jid->server));
      return IKS_HOOK;
   }

   return IKS_OK;
}

/*!
 * \brief disconnect from jabber server.
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \return 1.
 */
int ast_aji_disconnect(struct aji_client *client)
{
   if (client) {
      ast_verb(4, "JABBER: Disconnecting\n");
#ifdef HAVE_OPENSSL
      if (client->stream_flags & SECURE) {
         SSL_shutdown(client->ssl_session);
         SSL_CTX_free(client->ssl_context);
         SSL_free(client->ssl_session);
      }
#endif
      iks_disconnect(client->p);
      iks_parser_delete(client->p);
      ASTOBJ_UNREF(client, aji_client_destroy);
   }

   return 1;
}

/*!
 * \brief set presence of client.
 * \param client the configured XMPP client we use to connect to a XMPP server
 * \param to user send it to
 * \param from user it came from
 * \param level
 * \param desc
 * \return void.
 */
static void aji_set_presence(struct aji_client *client, char *to, char *from, int level, char *desc)
{
   int res = 0;
   iks *presence = iks_make_pres(level, desc);
   iks *cnode = iks_new("c");
   iks *priority = iks_new("priority");
   char priorityS[10];

   if (presence && cnode && client && priority) {
      if(to)
         iks_insert_attrib(presence, "to", to);
      if(from)
         iks_insert_attrib(presence, "from", from);
      snprintf(priorityS, sizeof(priorityS), "%d", client->priority);
      iks_insert_cdata(priority, priorityS, strlen(priorityS));
      iks_insert_node(presence, priority);
      iks_insert_attrib(cnode, "node", "http://www.asterisk.org/xmpp/client/caps");
      iks_insert_attrib(cnode, "ver", "asterisk-xmpp");
      iks_insert_attrib(cnode, "ext", "voice-v1");
      iks_insert_attrib(cnode, "xmlns", "http://jabber.org/protocol/caps");
      iks_insert_node(presence, cnode);
      res = ast_aji_send(client, presence);
   } else
      ast_log(LOG_ERROR, "Out of memory.\n");

   iks_delete(cnode);
   iks_delete(presence);
   iks_delete(priority);
}

/*!
 * \brief Turn on/off console debugging.
 * \return CLI_SUCCESS.
 */
static char *aji_do_set_debug(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
   switch (cmd) {
   case CLI_INIT:
      e->command = "jabber set debug {on|off}";
      e->usage =
         "Usage: jabber set debug {on|off}\n"
         "       Enables/disables dumping of XMPP/Jabber packets for debugging purposes.\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   if (a->argc != e->args)
      return CLI_SHOWUSAGE;

   if (!strncasecmp(a->argv[e->args - 1], "on", 2)) {
      ASTOBJ_CONTAINER_TRAVERSE(&clients, 1, {
         ASTOBJ_RDLOCK(iterator); 
         iterator->debug = 1;
         ASTOBJ_UNLOCK(iterator);
      });
      ast_cli(a->fd, "Jabber Debugging Enabled.\n");
      return CLI_SUCCESS;
   } else if (!strncasecmp(a->argv[e->args - 1], "off", 3)) {
      ASTOBJ_CONTAINER_TRAVERSE(&clients, 1, {
         ASTOBJ_RDLOCK(iterator); 
         iterator->debug = 0;
         ASTOBJ_UNLOCK(iterator);
      });
      ast_cli(a->fd, "Jabber Debugging Disabled.\n");
      return CLI_SUCCESS;
   }
   return CLI_SHOWUSAGE; /* defaults to invalid */
}

/*!
 * \brief Reload jabber module.
 * \return CLI_SUCCESS.
 */
static char *aji_do_reload(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
   switch (cmd) {
   case CLI_INIT:
      e->command = "jabber reload";
      e->usage =
         "Usage: jabber reload\n"
         "       Reloads the Jabber module.\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   aji_reload(1);
   ast_cli(a->fd, "Jabber Reloaded.\n");
   return CLI_SUCCESS;
}

/*!
 * \brief Show client status.
 * \return CLI_SUCCESS.
 */
static char *aji_show_clients(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
   char *status;
   int count = 0;
   
   switch (cmd) {
   case CLI_INIT:
      e->command = "jabber show connected";
      e->usage =
         "Usage: jabber show connected\n"
         "       Shows state of clients and components\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   ast_cli(a->fd, "Jabber Users and their status:\n");
   ASTOBJ_CONTAINER_TRAVERSE(&clients, 1, {
      ASTOBJ_RDLOCK(iterator);
      count++;
      switch (iterator->state) {
      case AJI_DISCONNECTED:
         status = "Disconnected";
         break;
      case AJI_CONNECTING:
         status = "Connecting";
         break;
      case AJI_CONNECTED:
         status = "Connected";
         break;
      default:
         status = "Unknown";
      }
      ast_cli(a->fd, "       User: %s     - %s\n", iterator->user, status);
      ASTOBJ_UNLOCK(iterator);
   });
   ast_cli(a->fd, "----\n");
   ast_cli(a->fd, "   Number of users: %d\n", count);
   return CLI_SUCCESS;
}

/*!
 * \brief Show buddy lists
 * \return CLI_SUCCESS.
 */
static char *aji_show_buddies(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
   struct aji_resource *resource;
   struct aji_client *client;

   switch (cmd) {
   case CLI_INIT:
      e->command = "jabber show buddies";
      e->usage =
         "Usage: jabber show buddies\n"
         "       Shows buddy lists of our clients\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   ast_cli(a->fd, "Jabber buddy lists\n");
   ASTOBJ_CONTAINER_TRAVERSE(&clients, 1, {
      ast_cli(a->fd,"Client: %s\n", iterator->user);
      client = iterator;
      ASTOBJ_CONTAINER_TRAVERSE(&client->buddies, 1, {
         ASTOBJ_RDLOCK(iterator);
         ast_cli(a->fd,"\tBuddy:\t%s\n", iterator->name);
         if (!iterator->resources)
            ast_cli(a->fd,"\t\tResource: None\n"); 
         for (resource = iterator->resources; resource; resource = resource->next) {
            ast_cli(a->fd,"\t\tResource: %s\n", resource->resource);
            if(resource->cap) {
               ast_cli(a->fd,"\t\t\tnode: %s\n", resource->cap->parent->node);
               ast_cli(a->fd,"\t\t\tversion: %s\n", resource->cap->version);
               ast_cli(a->fd,"\t\t\tJingle capable: %s\n", resource->cap->jingle ? "yes" : "no");
            }
            ast_cli(a->fd,"\t\tStatus: %d\n", resource->status);
            ast_cli(a->fd,"\t\tPriority: %d\n", resource->priority);
         }
         ASTOBJ_UNLOCK(iterator);
      });
      iterator = client;
   });
   return CLI_SUCCESS;
}

/*!
 * \brief Send test message for debugging.
 * \return CLI_SUCCESS,CLI_FAILURE.
 */
static char *aji_test(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
   struct aji_client *client;
   struct aji_resource *resource;
   const char *name = "asterisk";
   struct aji_message *tmp;

   switch (cmd) {
   case CLI_INIT:
      e->command = "jabber test";
      e->usage =
         "Usage: jabber test [client]\n"
         "       Sends test message for debugging purposes.  A specific client\n"
         "       as configured in jabber.conf can be optionally specified.\n";
      return NULL;
   case CLI_GENERATE:
      return NULL;
   }

   if (a->argc > 3)
      return CLI_SHOWUSAGE;
   else if (a->argc == 3)
      name = a->argv[2];

   if (!(client = ASTOBJ_CONTAINER_FIND(&clients, name))) {
      ast_cli(a->fd, "Unable to find client '%s'!\n", name);
      return CLI_FAILURE;
   }

   /* XXX Does Matt really want everyone to use his personal address for tests? */ /* XXX yes he does */
   ast_aji_send_chat(client, "mogorman@astjab.org", "blahblah");
   ASTOBJ_CONTAINER_TRAVERSE(&client->buddies, 1, {
      ASTOBJ_RDLOCK(iterator);
      ast_verbose("User: %s\n", iterator->name);
      for (resource = iterator->resources; resource; resource = resource->next) {
         ast_verbose("Resource: %s\n", resource->resource);
         if(resource->cap) {
            ast_verbose("   client: %s\n", resource->cap->parent->node);
            ast_verbose("   version: %s\n", resource->cap->version);
            ast_verbose("   Jingle Capable: %d\n", resource->cap->jingle);
         }
         ast_verbose("  Priority: %d\n", resource->priority);
         ast_verbose("  Status: %d\n", resource->status); 
         ast_verbose("  Message: %s\n", S_OR(resource->description,"")); 
      }
      ASTOBJ_UNLOCK(iterator);
   });
   ast_verbose("\nOooh a working message stack!\n");
   AST_LIST_LOCK(&client->messages);
   AST_LIST_TRAVERSE(&client->messages, tmp, list) {
      ast_verbose("  Message from: %s with id %s @ %s %s\n",tmp->from, S_OR(tmp->id,""), ctime(&tmp->arrived), S_OR(tmp->message, ""));
   }
   AST_LIST_UNLOCK(&client->messages);
   ASTOBJ_UNREF(client, aji_client_destroy);

   return CLI_SUCCESS;
}

/*!
 * \brief creates aji_client structure.
 * \param label
 * \param var ast_variable
 * \param debug 
 * \return 0.
 */
static int aji_create_client(char *label, struct ast_variable *var, int debug)
{
   char *resource;
   struct aji_client *client = NULL;
   int flag = 0;

   client = ASTOBJ_CONTAINER_FIND(&clients,label);
   if (!client) {
      flag = 1;
      client = ast_calloc(1, sizeof(*client));
      if (!client) {
         ast_log(LOG_ERROR, "Out of memory!\n");
         return 0;
      }
      ASTOBJ_INIT(client);
      ASTOBJ_WRLOCK(client);
      ASTOBJ_CONTAINER_INIT(&client->buddies);
   } else {
      ASTOBJ_WRLOCK(client);
      ASTOBJ_UNMARK(client);
   }
   ASTOBJ_CONTAINER_MARKALL(&client->buddies);
   ast_copy_string(client->name, label, sizeof(client->name));
   ast_copy_string(client->mid, "aaaaa", sizeof(client->mid));

   /* Set default values for the client object */
   client->debug = debug;
   ast_copy_flags(&client->flags, &globalflags, AST_FLAGS_ALL);
   client->port = 5222;
   client->usetls = 1;
   client->usesasl = 1;
   client->forcessl = 0;
   client->keepalive = 1;
   client->timeout = 50;
   client->message_timeout = 100;
   AST_LIST_HEAD_INIT(&client->messages);
   client->component = 0;
   ast_copy_string(client->statusmessage, "Online and Available", sizeof(client->statusmessage));
   client->priority = 0;
   client->status = IKS_SHOW_AVAILABLE;

   if (flag) {
      client->authorized = 0;
      client->state = AJI_DISCONNECTED;
   }
   while (var) {
      if (!strcasecmp(var->name, "username"))
         ast_copy_string(client->user, var->value, sizeof(client->user));
      else if (!strcasecmp(var->name, "serverhost"))
         ast_copy_string(client->serverhost, var->value, sizeof(client->serverhost));
      else if (!strcasecmp(var->name, "secret"))
         ast_copy_string(client->password, var->value, sizeof(client->password));
      else if (!strcasecmp(var->name, "statusmessage"))
         ast_copy_string(client->statusmessage, var->value, sizeof(client->statusmessage));
      else if (!strcasecmp(var->name, "port"))
         client->port = atoi(var->value);
      else if (!strcasecmp(var->name, "timeout"))
         client->message_timeout = atoi(var->value);
      else if (!strcasecmp(var->name, "debug"))
         client->debug = (ast_false(var->value)) ? 0 : 1;
      else if (!strcasecmp(var->name, "type")) {
         if (!strcasecmp(var->value, "component"))
            client->component = 1;
      } else if (!strcasecmp(var->name, "usetls")) {
         client->usetls = (ast_false(var->value)) ? 0 : 1;
      } else if (!strcasecmp(var->name, "usesasl")) {
         client->usesasl = (ast_false(var->value)) ? 0 : 1;
      } else if (!strcasecmp(var->name, "forceoldssl"))
         client->forcessl = (ast_false(var->value)) ? 0 : 1;
      else if (!strcasecmp(var->name, "keepalive"))
         client->keepalive = (ast_false(var->value)) ? 0 : 1;
      else if (!strcasecmp(var->name, "autoprune"))
         ast_set2_flag(&client->flags, ast_true(var->value), AJI_AUTOPRUNE);
      else if (!strcasecmp(var->name, "autoregister"))
         ast_set2_flag(&client->flags, ast_true(var->value), AJI_AUTOREGISTER);
      else if (!strcasecmp(var->name, "buddy"))
         aji_create_buddy((char *)var->value, client);
      else if (!strcasecmp(var->name, "priority"))
         client->priority = atoi(var->value);
      else if (!strcasecmp(var->name, "status")) {
         if (!strcasecmp(var->value, "unavailable"))
            client->status = IKS_SHOW_UNAVAILABLE;
         else
         if (!strcasecmp(var->value, "available")
          || !strcasecmp(var->value, "online"))
            client->status = IKS_SHOW_AVAILABLE;
         else
         if (!strcasecmp(var->value, "chat")
          || !strcasecmp(var->value, "chatty"))
            client->status = IKS_SHOW_CHAT;
         else
         if (!strcasecmp(var->value, "away"))
            client->status = IKS_SHOW_AWAY;
         else
         if (!strcasecmp(var->value, "xa")
          || !strcasecmp(var->value, "xaway"))
            client->status = IKS_SHOW_XA;
         else
         if (!strcasecmp(var->value, "dnd"))
            client->status = IKS_SHOW_DND;
         else
         if (!strcasecmp(var->value, "invisible"))
         #ifdef IKS_SHOW_INVISIBLE
            client->status = IKS_SHOW_INVISIBLE;
         #else
         {
            ast_log(LOG_WARNING, "Your iksemel doesn't support invisible status: falling back to DND\n");
            client->status = IKS_SHOW_DND;
         }
         #endif
         else
            ast_log(LOG_WARNING, "Unknown presence status: %s\n", var->value);
      }
   /* no transport support in this version */
   /* else if (!strcasecmp(var->name, "transport"))
            aji_create_transport(var->value, client);
   */
      var = var->next;
   }
   if (!flag) {
      ASTOBJ_UNLOCK(client);
      ASTOBJ_UNREF(client, aji_client_destroy);
      return 1;
   }

   ast_copy_string(client->name_space, (client->component) ? "jabber:component:accept" : "jabber:client", sizeof(client->name_space));
   client->p = iks_stream_new(client->name_space, client, aji_act_hook);
   if (!client->p) {
      ast_log(LOG_ERROR, "Failed to create stream for client '%s'!\n", client->name);
      return 0;
   }
   client->stack = iks_stack_new(8192, 8192);
   if (!client->stack) {
      ast_log(LOG_ERROR, "Failed to allocate stack for client '%s'\n", client->name);
      return 0;
   }
   client->f = iks_filter_new();
   if (!client->f) {
      ast_log(LOG_ERROR, "Failed to create filter for client '%s'\n", client->name);
      return 0;
   }
   if (!strchr(client->user, '/') && !client->component) { /*client */
      resource = NULL;
      if (asprintf(&resource, "%s/asterisk", client->user) >= 0) {
         client->jid = iks_id_new(client->stack, resource);
         ast_free(resource);
      }
   } else
      client->jid = iks_id_new(client->stack, client->user);
   if (client->component) {
      iks_filter_add_rule(client->f, aji_dinfo_handler, client, IKS_RULE_NS, "http://jabber.org/protocol/disco#info", IKS_RULE_DONE);
      iks_filter_add_rule(client->f, aji_ditems_handler, client, IKS_RULE_NS, "http://jabber.org/protocol/disco#items", IKS_RULE_DONE);
      iks_filter_add_rule(client->f, aji_register_query_handler, client, IKS_RULE_SUBTYPE, IKS_TYPE_GET, IKS_RULE_NS, "jabber:iq:register", IKS_RULE_DONE);
      iks_filter_add_rule(client->f, aji_register_approve_handler, client, IKS_RULE_SUBTYPE, IKS_TYPE_SET, IKS_RULE_NS, "jabber:iq:register", IKS_RULE_DONE);
   } else {
      iks_filter_add_rule(client->f, aji_client_info_handler, client, IKS_RULE_NS, "http://jabber.org/protocol/disco#info", IKS_RULE_DONE);
   }
   iks_set_log_hook(client->p, aji_log_hook);
   ASTOBJ_UNLOCK(client);
   ASTOBJ_CONTAINER_LINK(&clients,client);
   return 1;
}

#if 0
/*!
 * \brief creates transport.
 * \param label, buddy to dump it into. 
 * \return 0.
 */
/* no connecting to transports today */
static int aji_create_transport(char *label, struct aji_client *client)
{
   char *server = NULL, *buddyname = NULL, *user = NULL, *pass = NULL;
   struct aji_buddy *buddy = NULL;

   buddy = ASTOBJ_CONTAINER_FIND(&client->buddies,label);
   if (!buddy) {
      buddy = ast_calloc(1, sizeof(*buddy));
      if(!buddy) {
         ast_log(LOG_WARNING, "Out of memory\n");
         return 0;
      }
      ASTOBJ_INIT(buddy);
   }
   ASTOBJ_WRLOCK(buddy);
   server = label;
   if ((buddyname = strchr(label, ','))) {
      *buddyname = '\0';
      buddyname++;
      if (buddyname && buddyname[0] != '\0') {
         if ((user = strchr(buddyname, ','))) {
            *user = '\0';
            user++;
            if (user && user[0] != '\0') {
               if ((pass = strchr(user, ','))) {
                  *pass = '\0';
                  pass++;
                  ast_copy_string(buddy->pass, pass, sizeof(buddy->pass));
                  ast_copy_string(buddy->user, user, sizeof(buddy->user));
                  ast_copy_string(buddy->name, buddyname, sizeof(buddy->name));
                  ast_copy_string(buddy->server, server, sizeof(buddy->server));
                  return 1;
               }
            }
         }
      }
   }
   ASTOBJ_UNLOCK(buddy);
   ASTOBJ_UNMARK(buddy);
   ASTOBJ_CONTAINER_LINK(&client->buddies, buddy);
   return 0;
}
#endif

/*!
 * \brief creates buddy.
 * \param label char.
 * \param client the configured XMPP client we use to connect to a XMPP server 
 * \return 1 on success, 0 on failure.
 */
static int aji_create_buddy(char *label, struct aji_client *client)
{
   struct aji_buddy *buddy = NULL;
   int flag = 0;
   buddy = ASTOBJ_CONTAINER_FIND(&client->buddies,label);
   if (!buddy) {
      flag = 1;
      buddy = ast_calloc(1, sizeof(*buddy));
      if(!buddy) {
         ast_log(LOG_WARNING, "Out of memory\n");
         return 0;
      }
      ASTOBJ_INIT(buddy);
   }
   ASTOBJ_WRLOCK(buddy);
   ast_copy_string(buddy->name, label, sizeof(buddy->name));
   ASTOBJ_UNLOCK(buddy);
   if(flag)
      ASTOBJ_CONTAINER_LINK(&client->buddies, buddy);
   else {
      ASTOBJ_UNMARK(buddy);
      ASTOBJ_UNREF(buddy, aji_buddy_destroy);
   }
   return 1;
}

/*!< load config file. \return 1. */
static int aji_load_config(int reload)
{
   char *cat = NULL;
   int debug = 1;
   struct ast_config *cfg = NULL;
   struct ast_variable *var = NULL;
   struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };

   if ((cfg = ast_config_load(JABBER_CONFIG, config_flags)) == CONFIG_STATUS_FILEUNCHANGED)
      return -1;

   /* Reset flags to default value */
   ast_set_flag(&globalflags, AJI_AUTOREGISTER);

   if (cfg == CONFIG_STATUS_FILEMISSING || cfg == CONFIG_STATUS_FILEINVALID) {
      ast_log(LOG_WARNING, "No such configuration file %s\n", JABBER_CONFIG);
      return 0;
   }

   cat = ast_category_browse(cfg, NULL);
   for (var = ast_variable_browse(cfg, "general"); var; var = var->next) {
      if (!strcasecmp(var->name, "debug")) {
         debug = (ast_false(ast_variable_retrieve(cfg, "general", "debug"))) ? 0 : 1;
      } else if (!strcasecmp(var->name, "autoprune")) {
         ast_set2_flag(&globalflags, ast_true(var->value), AJI_AUTOPRUNE);
      } else if (!strcasecmp(var->name, "autoregister")) {
         ast_set2_flag(&globalflags, ast_true(var->value), AJI_AUTOREGISTER);
      }
   }

   while (cat) {
      if (strcasecmp(cat, "general")) {
            var = ast_variable_browse(cfg, cat);
            aji_create_client(cat, var, debug);
      }
      cat = ast_category_browse(cfg, cat);
   }
   ast_config_destroy(cfg); /* or leak memory */
   return 1;
}

/*!
 * \brief grab a aji_client structure by label name or JID 
 * (without the resource string)
 * \param name label or JID 
 * \return aji_client.
 */
struct aji_client *ast_aji_get_client(const char *name)
{
   struct aji_client *client = NULL;
   char *aux = NULL;

   client = ASTOBJ_CONTAINER_FIND(&clients, name);
   if (!client && strchr(name, '@')) {
      ASTOBJ_CONTAINER_TRAVERSE(&clients, 1, {
         aux = ast_strdupa(iterator->user);
         if (strchr(aux, '/')) {
            /* strip resource for comparison */
            aux = strsep(&aux, "/");
         }
         if (!strncasecmp(aux, name, strlen(aux))) {
            client = iterator;
         }           
      });
   }

   return client;
}

struct aji_client_container *ast_aji_get_clients(void)
{
   return &clients;
}

static char mandescr_jabber_send[] =
"Description: Sends a message to a Jabber Client.\n"
"Variables: \n"
"  Jabber:    Client or transport Asterisk uses to connect to JABBER\n"
"  JID:       XMPP/Jabber JID (Name) of recipient\n" 
"  Message:   Message to be sent to the buddy\n";

/*! 
 * \brief  Send a Jabber Message via call from the Manager 
 * \param s mansession Manager session
 * \param m message Message to send
 * \return  0
*/
static int manager_jabber_send(struct mansession *s, const struct message *m)
{
   struct aji_client *client = NULL;
   const char *id = astman_get_header(m,"ActionID");
   const char *jabber = astman_get_header(m,"Jabber");
   const char *screenname = astman_get_header(m,"ScreenName");
   const char *message = astman_get_header(m,"Message");

   if (ast_strlen_zero(jabber)) {
      astman_send_error(s, m, "No transport specified");
      return 0;
   }
   if (ast_strlen_zero(screenname)) {
      astman_send_error(s, m, "No ScreenName specified");
      return 0;
   }
   if (ast_strlen_zero(message)) {
      astman_send_error(s, m, "No Message specified");
      return 0;
   }

   astman_send_ack(s, m, "Attempting to send Jabber Message");
   client = ast_aji_get_client(jabber);
   if (!client) {
      astman_send_error(s, m, "Could not find Sender");
      return 0;
   }
   if (strchr(screenname, '@') && message) {
      ast_aji_send_chat(client, screenname, message);
      astman_append(s, "Response: Success\r\n");
   } else {
      astman_append(s, "Response: Error\r\n");
   }
   if (!ast_strlen_zero(id)) {
      astman_append(s, "ActionID: %s\r\n",id);
   }
   astman_append(s, "\r\n");
   return 0;
}

/*! \brief Reload the jabber module */
static int aji_reload(int reload)
{
   int res;

   ASTOBJ_CONTAINER_MARKALL(&clients);
   if (!(res = aji_load_config(reload))) {
      ast_log(LOG_ERROR, "JABBER: Failed to load config.\n");
      return 0;
   } else if (res == -1)
      return 1;

   ASTOBJ_CONTAINER_PRUNE_MARKED(&clients, aji_client_destroy);
   ASTOBJ_CONTAINER_TRAVERSE(&clients, 1, {
      ASTOBJ_RDLOCK(iterator);
      if(iterator->state == AJI_DISCONNECTED) {
         if (!iterator->thread)
            ast_pthread_create_background(&iterator->thread, NULL, aji_recv_loop, iterator);
      } else if (iterator->state == AJI_CONNECTING)
         aji_get_roster(iterator);
      ASTOBJ_UNLOCK(iterator);
   });
   
   return 1;
}

/*! \brief Unload the jabber module */
static int unload_module(void)
{

   ast_cli_unregister_multiple(aji_cli, ARRAY_LEN(aji_cli));
   ast_unregister_application(app_ajisend);
   ast_unregister_application(app_ajistatus);
   ast_manager_unregister("JabberSend");
   ast_custom_function_unregister(&jabberstatus_function);
   
   ASTOBJ_CONTAINER_TRAVERSE(&clients, 1, {
      ASTOBJ_RDLOCK(iterator);
      ast_debug(3, "JABBER: Releasing and disconnecting client: %s\n", iterator->name);
      iterator->state = AJI_DISCONNECTING;
      ast_aji_disconnect(iterator);
      pthread_join(iterator->thread, NULL);
      ASTOBJ_UNLOCK(iterator);
   });

   ASTOBJ_CONTAINER_DESTROYALL(&clients, aji_client_destroy);
   ASTOBJ_CONTAINER_DESTROY(&clients);
   return 0;
}

/*! \brief Unload the jabber module */
static int load_module(void)
{
   ASTOBJ_CONTAINER_INIT(&clients);
   if(!aji_reload(0))
      return AST_MODULE_LOAD_DECLINE;
   ast_manager_register2("JabberSend", EVENT_FLAG_SYSTEM, manager_jabber_send,
         "Sends a message to a Jabber Client", mandescr_jabber_send);
   ast_register_application_xml(app_ajisend, aji_send_exec);
   ast_register_application_xml(app_ajistatus, aji_status_exec);
   ast_cli_register_multiple(aji_cli, ARRAY_LEN(aji_cli));
   ast_custom_function_register(&jabberstatus_function);

   return 0;
}

/*! \brief Wrapper for aji_reload */
static int reload(void)
{
   aji_reload(1);
   return 0;
}

AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS, "AJI - Asterisk Jabber Interface",
      .load = load_module,
      .unload = unload_module,
      .reload = reload,
          );