/*

 * xmpp_s10n.c  -- Jabber presence subscription handling

 *

 * Copyright (C) 2008-2009 Frank Zschockelt <mcabber@freakysoft.de>

 * Copyright (C) 2005-2009 Mikael Berthe <mikael@lilotux.net>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or (at

 * your option) any later version.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

 * USA

 */

#include "xmpp_helper.h"

#include "events.h"

#include "screen.h"

#include "hbuf.h"

#include "settings.h"

//  xmpp_send_s10n(jid, subtype)

// Send a s10n message with the passed subtype

void xmpp_send_s10n(const char *bjid, LmMessageSubType type)

{

  LmMessage *x = lm_message_new_with_sub_type(bjid,

                                              LM_MESSAGE_TYPE_PRESENCE,

                                              type);

  lm_connection_send(lconnection, x, NULL);

  lm_message_unref(x);

}

gboolean evscallback_subscription(guint evcontext, const char *arg, gpointer userdata)

{

  char *barejid = userdata;

  char *buf;

  // Sanity check

  if (G_UNLIKELY(!barejid)) {

    // Shouldn't happen, data should be set to the barejid.

    scr_LogPrint(LPRINT_LOGNORM, "Error in evs callback.");

    return FALSE;

  }

  if (evcontext == EVS_CONTEXT_TIMEOUT) {

    scr_LogPrint(LPRINT_LOGNORM, "Subscription event for %s timed out, cancelled.",

                 barejid);

    return FALSE;

  }

  if (evcontext == EVS_CONTEXT_CANCEL) {

    scr_LogPrint(LPRINT_LOGNORM, "Subscription event for %s cancelled.", barejid);

    return FALSE;

  }

  if (!(evcontext == EVS_CONTEXT_REJECT || evcontext == EVS_CONTEXT_ACCEPT))

    return FALSE;

  // Ok, let's work now.

  if (evcontext == EVS_CONTEXT_ACCEPT) {

    // Accept subscription request

    xmpp_send_s10n(barejid, LM_MESSAGE_SUB_TYPE_SUBSCRIBED);

    buf = g_strdup_printf("<%s> is allowed to receive your presence updates",

                          barejid);

  } else {

    // Reject subscription request

    xmpp_send_s10n(barejid, LM_MESSAGE_SUB_TYPE_UNSUBSCRIBED);

    buf = g_strdup_printf("<%s> won't receive your presence updates", barejid);

    if (settings_opt_get_int("delete_on_reject")) {

      // Remove the buddy from the roster if there is no current subscription

      if (roster_getsubscription(barejid) == sub_none)

        xmpp_delbuddy(barejid);

    }

  }

  scr_WriteIncomingMessage(barejid, buf, 0, HBB_PREFIX_INFO, 0);

  scr_LogPrint(LPRINT_LOGNORM, "%s", buf);

  g_free(buf);

  return FALSE;

}

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