/*

 * xmpp_iqrequest.c -- Jabber IQ request 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 <string.h>

#include <stdlib.h>

#include "xmpp_helper.h"

#include "xmpp_iq.h"

#include "screen.h"

#include "utils.h"

#include "settings.h"

#include "hooks.h"

#include "hbuf.h"

extern LmMessageNode *bookmarks;

extern LmMessageNode *rosternotes;

static LmHandlerResult cb_roster(LmMessageHandler *h, LmConnection *c,

                                 LmMessage *m, gpointer user_data);

static LmHandlerResult cb_version(LmMessageHandler *h, LmConnection *c,

                                  LmMessage *m, gpointer user_data);

static LmHandlerResult cb_time(LmMessageHandler *h, LmConnection *c,

                               LmMessage *m, gpointer user_data);

static LmHandlerResult cb_last(LmMessageHandler *h, LmConnection *c,

                               LmMessage *m, gpointer user_data);

static LmHandlerResult cb_vcard(LmMessageHandler *h, LmConnection *c,

                               LmMessage *m, gpointer user_data);

static struct IqRequestHandlers

{

  const gchar *xmlns;

  const gchar *querytag;

  LmHandleMessageFunction handler;

} iq_request_handlers[] = {

  {NS_ROSTER, "query", &cb_roster},

  {NS_VERSION,"query", &cb_version},

  {NS_TIME,   "query", &cb_time},

  {NS_LAST,   "query", &cb_last},

  {NS_VCARD,  "vCard", &cb_vcard},

  {NULL, NULL, NULL}

};

// Enum for vCard attributes

enum vcard_attr {

  vcard_home    = 1<<0,

  vcard_work    = 1<<1,

  vcard_postal  = 1<<2,

  vcard_voice   = 1<<3,

  vcard_fax     = 1<<4,

  vcard_cell    = 1<<5,

  vcard_inet    = 1<<6,

  vcard_pref    = 1<<7,

};

// xmlns has to be a namespace from iq_request_handlers[].xmlns

void xmpp_iq_request(const char *fulljid, const char *xmlns)

{

  LmMessage *iq;

  LmMessageNode *query;

  LmMessageHandler *handler;

  int i;

  iq = lm_message_new_with_sub_type(fulljid, LM_MESSAGE_TYPE_IQ,

                                    LM_MESSAGE_SUB_TYPE_GET);

  for (i = 0; strcmp(iq_request_handlers[i].xmlns, xmlns) != 0 ; ++i)

       ;

  query = lm_message_node_add_child(iq->node,

                                    iq_request_handlers[i].querytag,

                                    NULL);

  lm_message_node_set_attribute(query, "xmlns", xmlns);

  handler = lm_message_handler_new(iq_request_handlers[i].handler,

                                   NULL, FALSE);

  lm_connection_send_with_reply(lconnection, iq, handler, NULL);

  lm_message_handler_unref(handler);

  lm_message_unref(iq);

}

//  This callback is reached when mcabber receives the first roster update

// after the connection.

static LmHandlerResult cb_roster(LmMessageHandler *h, LmConnection *c,

                                 LmMessage *m, gpointer user_data)

{

  LmMessageNode *x;

  const char *ns;

  // Only execute the hook if the roster has been successfully retrieved

  if (lm_message_get_sub_type(m) != LM_MESSAGE_SUB_TYPE_RESULT)

    return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

  x = lm_message_node_find_child(m->node, "query");

  if (!x)

    return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

  ns = lm_message_node_get_attribute(x, "xmlns");

  if (ns && !strcmp(ns, NS_ROSTER))

    handle_iq_roster(NULL, c, m, user_data);

  // Post-login stuff

  return LM_HANDLER_RESULT_REMOVE_MESSAGE;

}

static LmHandlerResult cb_version(LmMessageHandler *h, LmConnection *c,

                                  LmMessage *m, gpointer user_data)

{

  LmMessageNode *ansqry;

  const char *p, *bjid;

  char *tmp;

  char *buf;

  ansqry = lm_message_node_get_child(m->node, "query");

  if (!ansqry) {

    scr_LogPrint(LPRINT_LOGNORM, "Invalid IQ:version result!");

    return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

  }

  // Display IQ result sender...

  p = lm_message_get_from(m);

  if (!p) {

    scr_LogPrint(LPRINT_LOGNORM, "Invalid IQ:version result (no sender name).");

    return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

  }

  bjid = p;

  buf = g_strdup_printf("Received IQ:version result from <%s>", bjid);

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

  // bjid should now really be the "bare JID", let's strip the resource

  tmp = strchr(bjid, JID_RESOURCE_SEPARATOR);

  if (tmp) *tmp = '\0';

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

  g_free(buf);

  // Get result data...

  p = lm_message_node_get_child_value(ansqry, "name");

  if (p) {

    buf = g_strdup_printf("Name:    %s", p);

    scr_WriteIncomingMessage(bjid, buf,

                             0, HBB_PREFIX_INFO | HBB_PREFIX_CONT, 0);

    g_free(buf);

  }

  p = lm_message_node_get_child_value(ansqry, "version");

  if (p) {

    buf = g_strdup_printf("Version: %s", p);

    scr_WriteIncomingMessage(bjid, buf,

                             0, HBB_PREFIX_INFO | HBB_PREFIX_CONT, 0);

    g_free(buf);

  }

  p = lm_message_node_get_child_value(ansqry, "os");

  if (p) {

    buf = g_strdup_printf("OS:      %s", p);

    scr_WriteIncomingMessage(bjid, buf,

                             0, HBB_PREFIX_INFO | HBB_PREFIX_CONT, 0);

    g_free(buf);

  }

  return LM_HANDLER_RESULT_REMOVE_MESSAGE;

}

static LmHandlerResult cb_time(LmMessageHandler *h, LmConnection *c,

                               LmMessage *m, gpointer user_data)

{

  LmMessageNode *ansqry;

  const char *p, *bjid;

  char *tmp;

  char *buf;

  ansqry = lm_message_node_get_child(m->node, "query");

  if (!ansqry) {

    scr_LogPrint(LPRINT_LOGNORM, "Invalid IQ:time result!");

    return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

  }

  // Display IQ result sender...

  p = lm_message_get_from(m);

  if (!p) {

    scr_LogPrint(LPRINT_LOGNORM, "Invalid IQ:time result (no sender name).");

    return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

  }

  bjid = p;

  buf = g_strdup_printf("Received IQ:time result from <%s>", bjid);

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

  // bjid should now really be the "bare JID", let's strip the resource

  tmp = strchr(bjid, JID_RESOURCE_SEPARATOR);

  if (tmp) *tmp = '\0';

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

  g_free(buf);

  // Get result data...

  p = lm_message_node_get_child_value(ansqry, "utc");

  if (p) {

    buf = g_strdup_printf("UTC:  %s", p);

    scr_WriteIncomingMessage(bjid, buf,

                             0, HBB_PREFIX_INFO | HBB_PREFIX_CONT, 0);

    g_free(buf);

  }

  p = lm_message_node_get_child_value(ansqry, "tz");

  if (p) {

    buf = g_strdup_printf("TZ:   %s", p);

    scr_WriteIncomingMessage(bjid, buf,

                             0, HBB_PREFIX_INFO | HBB_PREFIX_CONT, 0);

    g_free(buf);

  }

  p = lm_message_node_get_child_value(ansqry, "display");

  if (p) {

    buf = g_strdup_printf("Time: %s", p);

    scr_WriteIncomingMessage(bjid, buf,

                             0, HBB_PREFIX_INFO | HBB_PREFIX_CONT, 0);

    g_free(buf);

  }

  return LM_HANDLER_RESULT_REMOVE_MESSAGE;

}

static LmHandlerResult cb_last(LmMessageHandler *h, LmConnection *c,

                               LmMessage *m, gpointer user_data)

{

  LmMessageNode *ansqry;

  const char *p, *bjid;

  char *buf, *tmp;

  ansqry = lm_message_node_get_child(m->node, "query");

  if (!ansqry) {

    scr_LogPrint(LPRINT_LOGNORM, "Invalid IQ:last result!");

    return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

  }

  // Display IQ result sender...

  p = lm_message_get_from(m);

  if (!p) {

    scr_LogPrint(LPRINT_LOGNORM, "Invalid IQ:last result (no sender name).");

    return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

  }

  bjid = p;

  buf = g_strdup_printf("Received IQ:last result from <%s>", bjid);

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

  // bjid should now really be the "bare JID", let's strip the resource

  tmp = strchr(bjid, JID_RESOURCE_SEPARATOR);

  if (tmp) *tmp = '\0';

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

  g_free(buf);

  // Get result data...

  p = lm_message_node_get_attribute(ansqry, "seconds");

  if (p) {

    long int s;

    GString *sbuf;

    sbuf = g_string_new("Idle time: ");

    s = atol(p);

    // Days

    if (s > 86400L) {

      g_string_append_printf(sbuf, "%ldd ", s/86400L);

      s %= 86400L;

    }

    // hh:mm:ss

    g_string_append_printf(sbuf, "%02ld:", s/3600L);

    s %= 3600L;

    g_string_append_printf(sbuf, "%02ld:%02ld", s/60L, s%60L);

    scr_WriteIncomingMessage(bjid, sbuf->str,

                             0, HBB_PREFIX_INFO | HBB_PREFIX_CONT, 0);

    g_string_free(sbuf, TRUE);

  } else {

    scr_WriteIncomingMessage(bjid, "No idle time reported.",

                             0, HBB_PREFIX_INFO | HBB_PREFIX_CONT, 0);

  }

  p = lm_message_node_get_value(ansqry);

  if (p) {

    buf = g_strdup_printf("Status message: %s", p);

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

    g_free(buf);

  }

  return LM_HANDLER_RESULT_REMOVE_MESSAGE;

}

static void display_vcard_item(const char *bjid, const char *label,

                               enum vcard_attr vcard_attrib, const char *text)

{

  char *buf;

  if (!text || !bjid || !label)

    return;

  buf = g_strdup_printf("%s: %s%s%s%s%s%s%s%s%s%s", label,

                        (vcard_attrib & vcard_home ? "[home]" : ""),

                        (vcard_attrib & vcard_work ? "[work]" : ""),

                        (vcard_attrib & vcard_postal ? "[postal]" : ""),

                        (vcard_attrib & vcard_voice ? "[voice]" : ""),

                        (vcard_attrib & vcard_fax  ? "[fax]"  : ""),

                        (vcard_attrib & vcard_cell ? "[cell]" : ""),

                        (vcard_attrib & vcard_inet ? "[inet]" : ""),

                        (vcard_attrib & vcard_pref ? "[pref]" : ""),

                        (vcard_attrib ? " " : ""),

                        text);

  scr_WriteIncomingMessage(bjid, buf, 0, HBB_PREFIX_INFO | HBB_PREFIX_CONT, 0);

  g_free(buf);

}

static void handle_vcard_node(const char *barejid, LmMessageNode *vcardnode)

{

  LmMessageNode *x;

  const char *p;

  for (x = vcardnode->children ; x; x = x->next) {

    const char *data;

    enum vcard_attr vcard_attrib = 0;

    p = x->name;

    data = lm_message_node_get_value(x);

    if (!p || !data)

      continue;

    if (!strcmp(p, "FN"))

      display_vcard_item(barejid, "Name", vcard_attrib, data);

    else if (!strcmp(p, "NICKNAME"))

      display_vcard_item(barejid, "Nickname", vcard_attrib, data);

    else if (!strcmp(p, "URL"))

      display_vcard_item(barejid, "URL", vcard_attrib, data);

    else if (!strcmp(p, "BDAY"))

      display_vcard_item(barejid, "Birthday", vcard_attrib, data);

    else if (!strcmp(p, "TZ"))

      display_vcard_item(barejid, "Timezone", vcard_attrib, data);

    else if (!strcmp(p, "TITLE"))

      display_vcard_item(barejid, "Title", vcard_attrib, data);

    else if (!strcmp(p, "ROLE"))

      display_vcard_item(barejid, "Role", vcard_attrib, data);

    else if (!strcmp(p, "DESC"))

      display_vcard_item(barejid, "Comment", vcard_attrib, data);

    else if (!strcmp(p, "N")) {

      data = lm_message_node_get_child_value(x, "FAMILY");

      display_vcard_item(barejid, "Family Name", vcard_attrib, data);

      data = lm_message_node_get_child_value(x, "GIVEN");

      display_vcard_item(barejid, "Given Name", vcard_attrib, data);

      data = lm_message_node_get_child_value(x, "MIDDLE");

      display_vcard_item(barejid, "Middle Name", vcard_attrib, data);

    } else if (!strcmp(p, "ORG")) {

      data = lm_message_node_get_child_value(x, "ORGNAME");

      display_vcard_item(barejid, "Organisation name", vcard_attrib, data);

      data = lm_message_node_get_child_value(x, "ORGUNIT");

      display_vcard_item(barejid, "Organisation unit", vcard_attrib, data);

    } else {

      // The HOME, WORK and PREF attributes are common to the remaining fields

      // (ADR, TEL & EMAIL)

      if (lm_message_node_get_child(x, "HOME"))

        vcard_attrib |= vcard_home;

      if (lm_message_node_get_child(x, "WORK"))

        vcard_attrib |= vcard_work;