/bp-themes/bp-default/_inc/ajax.php

<?php 
/** 
 * AJAX Functions 
 * 
 * All of these functions enhance the responsiveness of the user interface in 
 * the default theme by adding AJAX functionality. 
 * 
 * For more information on how the custom AJAX functions work, see 
 * http://codex.wordpress.org/AJAX_in_Plugins. 
 * 
 * @package BuddyPress 
 * @since BuddyPress (1.2) 
 * @subpackage BP-Default 
 */ 
 
// Exit if accessed directly 
if ( ! defined( 'ABSPATH' ) ) exit; 
 
/** 
 * Register AJAX handlers for BP Default theme functionality. 
 * 
 * This function is registered to the after_setup_theme hook with priority 20 as 
 * this file is included in a function hooked to after_setup_theme at priority 10. 
 * 
 * @since BuddyPress (1.6) 
 */ 
function bp_dtheme_register_actions() { 
  $actions = array( 
      // Directory filters 
      'blogs_filter' => 'bp_dtheme_object_template_loader',  
      'forums_filter' => 'bp_dtheme_object_template_loader',  
      'groups_filter' => 'bp_dtheme_object_template_loader',  
      'members_filter' => 'bp_dtheme_object_template_loader',  
      'messages_filter' => 'bp_dtheme_messages_template_loader',  
 
      // Friends 
      'accept_friendship' => 'bp_dtheme_ajax_accept_friendship',  
      'addremove_friend' => 'bp_dtheme_ajax_addremove_friend',  
      'reject_friendship' => 'bp_dtheme_ajax_reject_friendship',  
 
      // Activity 
      'activity_get_older_updates' => 'bp_dtheme_activity_template_loader',  
      'activity_mark_fav' => 'bp_dtheme_mark_activity_favorite',  
      'activity_mark_unfav' => 'bp_dtheme_unmark_activity_favorite',  
      'activity_widget_filter' => 'bp_dtheme_activity_template_loader',  
      'delete_activity' => 'bp_dtheme_delete_activity',  
      'delete_activity_comment' => 'bp_dtheme_delete_activity_comment',  
      'get_single_activity_content' => 'bp_dtheme_get_single_activity_content',  
      'new_activity_comment' => 'bp_dtheme_new_activity_comment',  
      'post_update' => 'bp_dtheme_post_update',  
      'bp_spam_activity' => 'bp_dtheme_spam_activity',  
      'bp_spam_activity_comment' => 'bp_dtheme_spam_activity',  
 
      // Groups 
      'groups_invite_user' => 'bp_dtheme_ajax_invite_user',  
      'joinleave_group' => 'bp_dtheme_ajax_joinleave_group',  
 
      // Messages 
      'messages_autocomplete_results' => 'bp_dtheme_ajax_messages_autocomplete_results',  
      'messages_close_notice' => 'bp_dtheme_ajax_close_notice',  
      'messages_delete' => 'bp_dtheme_ajax_messages_delete',  
      'messages_markread' => 'bp_dtheme_ajax_message_markread',  
      'messages_markunread' => 'bp_dtheme_ajax_message_markunread',  
      'messages_send_reply' => 'bp_dtheme_ajax_messages_send_reply',  
 ); 
 
  /** 
   * Register all of these AJAX handlers 
   * 
   * The "wp_ajax_" action is used for logged in users, and "wp_ajax_nopriv_" 
   * executes for users that aren't logged in. This is for backpat with BP <1.6. 
   */ 
  foreach( $actions as $name => $function ) { 
      add_action( 'wp_ajax_'        . $name, $function ); 
      add_action( 'wp_ajax_nopriv_' . $name, $function ); 
  } 
} 
add_action( 'after_setup_theme', 'bp_dtheme_register_actions', 20 ); 
 
/** 
 * This function looks scarier than it actually is. :) 
 * Each object loop (activity/members/groups/blogs/forums) contains default parameters to 
 * show specific information based on the page we are currently looking at. 
 * The following function will take into account any cookies set in the JS and allow us 
 * to override the parameters sent. That way we can change the results returned without reloading the page. 
 * By using cookies we can also make sure that user settings are retained across page loads. 
 * 
 * @return string Query string for the activity/members/groups/blogs/forums loops 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_ajax_querystring( $query_string, $object ) { 
  if ( empty( $object ) ) 
      return ''; 
 
  // Set up the cookies passed on this AJAX request. Store a local var to avoid conflicts 
  if ( ! empty( $_POST['cookie'] ) ) 
      $_BP_COOKIE = wp_parse_args( str_replace( '; ', '&', urldecode( $_POST['cookie'] ) ) ); 
  else 
      $_BP_COOKIE = &$_COOKIE; 
 
  $qs = array(); 
 
  /** 
   * Check if any cookie values are set. If there are then override the default params passed to the 
   * template loop 
   */ 
 
  // Activity stream filtering on action 
  if ( ! empty( $_BP_COOKIE['bp-' . $object . '-filter'] ) && '-1' != $_BP_COOKIE['bp-' . $object . '-filter'] ) { 
      $qs[] = 'type='   . $_BP_COOKIE['bp-' . $object . '-filter']; 
      $qs[] = 'action=' . $_BP_COOKIE['bp-' . $object . '-filter']; 
  } 
 
  if ( ! empty( $_BP_COOKIE['bp-' . $object . '-scope'] ) ) { 
      if ( 'personal' == $_BP_COOKIE['bp-' . $object . '-scope'] ) { 
          $user_id = ( bp_displayed_user_id() ) ? bp_displayed_user_id() : bp_loggedin_user_id(); 
          $qs[] = 'user_id=' . $user_id; 
      } 
 
      // Activity stream scope only on activity directory. 
      if ( 'all' != $_BP_COOKIE['bp-' . $object . '-scope'] && ! bp_displayed_user_id() && ! bp_is_single_item() ) 
          $qs[] = 'scope=' . $_BP_COOKIE['bp-' . $object . '-scope']; 
  } 
 
  // If page and search_terms have been passed via the AJAX post request, use those. 
  if ( ! empty( $_POST['page'] ) && '-1' != $_POST['page'] ) 
      $qs[] = 'page=' . absint( $_POST['page'] ); 
 
  // exludes activity just posted and avoids duplicate ids 
  if ( ! empty( $_POST['exclude_just_posted'] ) ) { 
      $just_posted = wp_parse_id_list( $_POST['exclude_just_posted'] ); 
      $qs[] = 'exclude=' . implode( ', ', $just_posted ); 
  } 
 
  $object_search_text = bp_get_search_default_text( $object ); 
   if ( ! empty( $_POST['search_terms'] ) && $object_search_text != $_POST['search_terms'] && 'false' != $_POST['search_terms'] && 'undefined' != $_POST['search_terms'] ) 
      $qs[] = 'search_terms=' . $_POST['search_terms']; 
 
  // Now pass the querystring to override default values. 
  $query_string = empty( $qs ) ? '' : join( '&', (array) $qs ); 
 
  $object_filter = ''; 
  if ( isset( $_BP_COOKIE['bp-' . $object . '-filter'] ) ) 
      $object_filter = $_BP_COOKIE['bp-' . $object . '-filter']; 
 
  $object_scope = ''; 
  if ( isset( $_BP_COOKIE['bp-' . $object . '-scope'] ) ) 
      $object_scope = $_BP_COOKIE['bp-' . $object . '-scope']; 
 
  $object_page = ''; 
  if ( isset( $_BP_COOKIE['bp-' . $object . '-page'] ) ) 
      $object_page = $_BP_COOKIE['bp-' . $object . '-page']; 
 
  $object_search_terms = ''; 
  if ( isset( $_BP_COOKIE['bp-' . $object . '-search-terms'] ) ) 
      $object_search_terms = $_BP_COOKIE['bp-' . $object . '-search-terms']; 
 
  $object_extras = ''; 
  if ( isset( $_BP_COOKIE['bp-' . $object . '-extras'] ) ) 
      $object_extras = $_BP_COOKIE['bp-' . $object . '-extras']; 
 
  return apply_filters( 'bp_dtheme_ajax_querystring', $query_string, $object, $object_filter, $object_scope, $object_page, $object_search_terms, $object_extras ); 
} 
add_filter( 'bp_ajax_querystring', 'bp_dtheme_ajax_querystring', 10, 2 ); 
 
/** 
 * Load the template loop for the current object. 
 * 
 * @return string Prints template loop for the specified object 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_object_template_loader() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  // Bail if no object passed 
  if ( empty( $_POST['object'] ) ) 
      return; 
 
  // Sanitize the object 
  $object = sanitize_title( $_POST['object'] ); 
 
  // Bail if object is not an active component 
  if ( ! bp_is_active( $object ) ) 
      return; 
 
   /** 
   * AJAX requests happen too early to be seen by bp_update_is_directory() 
   * so we do it manually here to ensure templates load with the correct 
   * context. Without this check, templates will load the 'single' version 
   * of themselves rather than the directory version. 
   */ 
  if ( ! bp_current_action() ) 
      bp_update_is_directory( true, bp_current_component() ); 
 
  // Locate the object template 
  locate_template( array( "$object/$object-loop.php" ), true ); 
  exit; 
} 
 
/** 
 * Load messages template loop when searched on the private message page 
 * 
 * @return string Prints template loop for the Messages component 
 * @since BuddyPress (1.6) 
 */ 
function bp_dtheme_messages_template_loader() { 
  locate_template( array( 'members/single/messages/messages-loop.php' ), true ); 
  exit; 
} 
 
/** 
 * Load the activity loop template when activity is requested via AJAX,  
 * 
 * @return string JSON object containing 'contents' (output of the template loop for the Activity component) and 'feed_url' (URL to the relevant RSS feed). 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_activity_template_loader() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  $scope = ''; 
  if ( ! empty( $_POST['scope'] ) ) 
      $scope = $_POST['scope']; 
 
  // We need to calculate and return the feed URL for each scope 
  switch ( $scope ) { 
      case 'friends': 
          $feed_url = bp_loggedin_user_domain() . bp_get_activity_slug() . '/friends/feed/'; 
          break; 
      case 'groups': 
          $feed_url = bp_loggedin_user_domain() . bp_get_activity_slug() . '/groups/feed/'; 
          break; 
      case 'favorites': 
          $feed_url = bp_loggedin_user_domain() . bp_get_activity_slug() . '/favorites/feed/'; 
          break; 
      case 'mentions': 
          $feed_url = bp_loggedin_user_domain() . bp_get_activity_slug() . '/mentions/feed/'; 
          bp_activity_clear_new_mentions( bp_loggedin_user_id() ); 
          break; 
      default: 
          $feed_url = home_url( bp_get_activity_root_slug() . '/feed/' ); 
          break; 
  } 
 
  // Buffer the loop in the template to a var for JS to spit out. 
  ob_start(); 
  locate_template( array( 'activity/activity-loop.php' ), true ); 
  $result['contents'] = ob_get_contents(); 
  $result['feed_url'] = apply_filters( 'bp_dtheme_activity_feed_url', $feed_url, $scope ); 
  ob_end_clean(); 
 
  exit( json_encode( $result ) ); 
} 
 
/** 
 * Processes Activity updates received via a POST request. 
 * 
 * @return string HTML 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_post_update() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  // Check the nonce 
  check_admin_referer( 'post_update', '_wpnonce_post_update' ); 
 
  if ( ! is_user_logged_in() ) 
      exit( '-1' ); 
 
  if ( empty( $_POST['content'] ) ) 
      exit( '-1<div id="message" class="error"><p>' . __( 'Please enter some content to post.', 'buddypress' ) . '</p></div>' ); 
 
  $activity_id = 0; 
  if ( empty( $_POST['object'] ) && bp_is_active( 'activity' ) ) { 
      $activity_id = bp_activity_post_update( array( 'content' => $_POST['content'], 'error_type' => 'wp_error' ) ); 
 
  } elseif ( $_POST['object'] == 'groups' ) { 
      if ( ! empty( $_POST['item_id'] ) && bp_is_active( 'groups' ) ) 
          $activity_id = groups_post_update( array( 'content' => $_POST['content'], 'group_id' => $item_id, 'error_type' => 'wp_error' ) ); 
 
  } else { 
      $activity_id = apply_filters( 'bp_activity_custom_update', $_POST['object'], $_POST['item_id'], $_POST['content'] ); 
  } 
 
  if ( false === $activity_id ) { 
      exit( '-1<div id="message" class="error"><p>' . __( 'There was a problem posting your update, please try again.', 'buddypress' ) . '</p></div>' ); 
  } elseif ( is_wp_error( $activity_id ) && $activity_id->get_error_code() ) { 
      exit( '-1<div id="message" class="error bp-ajax-message"><p>' . $activity_id->get_error_message() . '</p></div>' ); 
  } 
 
  if ( bp_has_activities ( 'include=' . $activity_id ) ) { 
      while ( bp_activities() ) { 
          bp_the_activity(); 
          locate_template( array( 'activity/entry.php' ), true ); 
      } 
  } 
 
  exit; 
} 
 
/** 
 * Posts new Activity comments received via a POST request. 
 * 
 * @global BP_Activity_Template $activities_template 
 * @return string HTML 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_new_activity_comment() { 
  global $activities_template; 
 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  // Check the nonce 
  check_admin_referer( 'new_activity_comment', '_wpnonce_new_activity_comment' ); 
 
  if ( ! is_user_logged_in() ) 
      exit( '-1' ); 
 
  if ( empty( $_POST['content'] ) ) 
      exit( '-1<div id="message" class="error"><p>' . __( 'Please do not leave the comment area blank.', 'buddypress' ) . '</p></div>' ); 
 
  if ( empty( $_POST['form_id'] ) || empty( $_POST['comment_id'] ) || ! is_numeric( $_POST['form_id'] ) || ! is_numeric( $_POST['comment_id'] ) ) 
      exit( '-1<div id="message" class="error"><p>' . __( 'There was an error posting that reply, please try again.', 'buddypress' ) . '</p></div>' ); 
 
  $comment_id = bp_activity_new_comment( array( 
      'activity_id' => $_POST['form_id'],  
      'content' => $_POST['content'],  
      'parent_id' => $_POST['comment_id'],  
      'error_type' => 'wp_error' 
 ) ); 
 
  if ( false === $comment_id ) { 
      exit( '-1<div id="message" class="error"><p>' . __( 'There was an error posting that reply, please try again.', 'buddypress' ) . '</p></div>' ); 
  } elseif ( is_wp_error( $comment_id ) ) { 
      exit( '-1<div id="message" class="error bp-ajax-message"><p>' . esc_html( $comment_id->get_error_message() ) . '</p></div>' ); 
  } 
 
  // Load the new activity item into the $activities_template global 
  bp_has_activities( 'display_comments=stream&hide_spam=false&show_hidden=true&include=' . $comment_id ); 
 
  // Swap the current comment with the activity item we just loaded 
  $activities_template->activity = new stdClass; 
  $activities_template->activity->id = $activities_template->activities[0]->item_id; 
  $activities_template->activity->current_comment = $activities_template->activities[0]; 
 
  $template = locate_template( 'activity/comment.php', false, false ); 
 
  /** 
   * Backward compatibility. In older versions of BP, the markup was 
   * generated in the PHP instead of a template. This ensures that 
   * older themes (which are not children of bp-default and won't 
   * have the new template) will still work. 
   */ 
  if ( empty( $template ) ) 
      $template = buddypress()->plugin_dir . '/bp-themes/bp-default/activity/comment.php'; 
 
  load_template( $template, false ); 
 
  unset( $activities_template ); 
  exit; 
} 
 
/** 
 * Deletes an Activity item received via a POST request. 
 * 
 * @return mixed String on error, void on success 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_delete_activity() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  // Check the nonce 
  check_admin_referer( 'bp_activity_delete_link' ); 
 
  if ( ! is_user_logged_in() ) 
      exit( '-1' ); 
 
  if ( empty( $_POST['id'] ) || ! is_numeric( $_POST['id'] ) ) 
      exit( '-1' ); 
 
  $activity = new BP_Activity_Activity( (int) $_POST['id'] ); 
 
  // Check access 
  if ( ! bp_activity_user_can_delete( $activity ) ) 
      exit( '-1' ); 
 
  // Call the action before the delete so plugins can still fetch information about it 
  do_action( 'bp_activity_before_action_delete_activity', $activity->id, $activity->user_id ); 
 
  if ( ! bp_activity_delete( array( 'id' => $activity->id, 'user_id' => $activity->user_id ) ) ) 
      exit( '-1<div id="message" class="error"><p>' . __( 'There was a problem when deleting. Please try again.', 'buddypress' ) . '</p></div>' ); 
 
  do_action( 'bp_activity_action_delete_activity', $activity->id, $activity->user_id ); 
  exit; 
} 
 
/** 
 * Deletes an Activity comment received via a POST request 
 * 
 * @return mixed String on error, void on success 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_delete_activity_comment() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  // Check the nonce 
  check_admin_referer( 'bp_activity_delete_link' ); 
 
  if ( ! is_user_logged_in() ) 
      exit( '-1' ); 
 
  $comment = new BP_Activity_Activity( $_POST['id'] ); 
 
  // Check access 
  if ( ! bp_current_user_can( 'bp_moderate' ) && $comment->user_id != bp_loggedin_user_id() ) 
      exit( '-1' ); 
 
  if ( empty( $_POST['id'] ) || ! is_numeric( $_POST['id'] ) ) 
      exit( '-1' ); 
 
  // Call the action before the delete so plugins can still fetch information about it 
  do_action( 'bp_activity_before_action_delete_activity', $_POST['id'], $comment->user_id ); 
 
  if ( ! bp_activity_delete_comment( $comment->item_id, $comment->id ) ) 
      exit( '-1<div id="message" class="error"><p>' . __( 'There was a problem when deleting. Please try again.', 'buddypress' ) . '</p></div>' ); 
 
  do_action( 'bp_activity_action_delete_activity', $_POST['id'], $comment->user_id ); 
  exit; 
} 
 
/** 
 * AJAX spam an activity item or comment 
 * 
 * @global BuddyPress $bp The one true BuddyPress instance 
 * @return mixed String on error, void on success 
 * @since BuddyPress (1.6) 
 */ 
function bp_dtheme_spam_activity() { 
  global $bp; 
 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  // Check that user is logged in, Activity Streams are enabled, and Akismet is present. 
  if ( ! is_user_logged_in() || ! bp_is_active( 'activity' ) || empty( $bp->activity->akismet ) ) 
      exit( '-1' ); 
 
  // Check an item ID was passed 
  if ( empty( $_POST['id'] ) || ! is_numeric( $_POST['id'] ) ) 
      exit( '-1' ); 
 
  // Is the current user allowed to spam items? 
  if ( ! bp_activity_user_can_mark_spam() ) 
      exit( '-1' ); 
 
  // Load up the activity item 
  $activity = new BP_Activity_Activity( (int) $_POST['id'] ); 
  if ( empty( $activity->component ) ) 
      exit( '-1' ); 
 
  // Check nonce 
  check_admin_referer( 'bp_activity_akismet_spam_' . $activity->id ); 
 
  // Call an action before the spamming so plugins can modify things if they want to 
  do_action( 'bp_activity_before_action_spam_activity', $activity->id, $activity ); 
 
  // Mark as spam 
  bp_activity_mark_as_spam( $activity ); 
  $activity->save(); 
 
  do_action( 'bp_activity_action_spam_activity', $activity->id, $activity->user_id ); 
  exit; 
} 
 
/** 
 * Mark an activity as a favourite via a POST request. 
 * 
 * @return string HTML 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_mark_activity_favorite() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  if ( bp_activity_add_user_favorite( $_POST['id'] ) ) 
      _e( 'Remove Favorite', 'buddypress' ); 
  else 
      _e( 'Favorite', 'buddypress' ); 
 
  exit; 
} 
 
/** 
 * Un-favourite an activity via a POST request. 
 * 
 * @return string HTML 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_unmark_activity_favorite() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  if ( bp_activity_remove_user_favorite( $_POST['id'] ) ) 
      _e( 'Favorite', 'buddypress' ); 
  else 
      _e( 'Remove Favorite', 'buddypress' ); 
 
  exit; 
} 
 
/** 
 * Fetches full an activity's full, non-excerpted content via a POST request. 
 * Used for the 'Read More' link on long activity items. 
 * 
 * @return string HTML 
 * @since BuddyPress (1.5) 
 */ 
function bp_dtheme_get_single_activity_content() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  $activity_array = bp_activity_get_specific( array( 
      'activity_ids' => $_POST['activity_id'],  
      'display_comments' => 'stream' 
 ) ); 
 
  $activity = ! empty( $activity_array['activities'][0] ) ? $activity_array['activities'][0] : false; 
 
  if ( empty( $activity ) ) 
      exit; // @todo: error? 
 
  do_action_ref_array( 'bp_dtheme_get_single_activity_content', array( &$activity ) ); 
 
  // Activity content retrieved through AJAX should run through normal filters, but not be truncated 
  remove_filter( 'bp_get_activity_content_body', 'bp_activity_truncate_entry', 5 ); 
  $content = apply_filters( 'bp_get_activity_content_body', $activity->content ); 
 
  exit( $content ); 
} 
 
/** 
 * Invites a friend to join a group via a POST request. 
 * 
 * @since BuddyPress (1.2) 
 * @todo Audit return types 
 */ 
function bp_dtheme_ajax_invite_user() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  check_ajax_referer( 'groups_invite_uninvite_user' ); 
 
  if ( ! $_POST['friend_id'] || ! $_POST['friend_action'] || ! $_POST['group_id'] ) 
      return; 
 
  if ( ! bp_groups_user_can_send_invites( $_POST['group_id'] ) ) 
      return; 
 
  if ( ! friends_check_friendship( bp_loggedin_user_id(), $_POST['friend_id'] ) ) 
      return; 
 
  $group_id = (int) $_POST['group_id']; 
  $friend_id = (int) $_POST['friend_id']; 
 
  if ( 'invite' == $_POST['friend_action'] ) { 
      $group = groups_get_group( $group_id ); 
 
      // Users who have previously requested membership do not need 
      // another invitation created for them 
      if ( BP_Groups_Member::check_for_membership_request( $friend_id, $group_id ) ) { 
          $user_status = 'is_pending'; 
 
      // Create the user invitation 
      } else if ( groups_invite_user( array( 'user_id' => $friend_id, 'group_id' => $group_id ) ) ) { 
          $user_status = 'is_invited'; 
 
      // Miscellaneous failure 
      } else { 
          return; 
      } 
 
      $user = new BP_Core_User( $_POST['friend_id'] ); 
 
      echo '<li id="uid-' . $user->id . '">'; 
      echo $user->avatar_thumb; 
      echo '<h4>' . $user->user_link . '</h4>'; 
      echo '<span class="activity">' . esc_attr( $user->last_active ) . '</span>'; 
      echo '<div class="action"> 
              <a class="button remove" href="' . wp_nonce_url( bp_loggedin_user_domain() . bp_get_groups_slug() . '/' . $_POST['group_id'] . '/invites/remove/' . $user->id, 'groups_invite_uninvite_user' ) . '" id="uid-' . esc_attr( $user->id ) . '">' . __( 'Remove Invite', 'buddypress' ) . '</a> 
            </div>'; 
 
      if ( 'is_pending' == $user_status ) { 
          echo '<p class="description">' . sprintf( __( '%s has previously requested to join this group. Sending an invitation will automatically add the member to the group.', 'buddypress' ), $user->user_link ) . '</p>'; 
      } 
 
      echo '</li>'; 
      exit; 
 
  } elseif ( 'uninvite' == $_POST['friend_action'] ) { 
      // Users who have previously requested membership should not 
      // have their requests deleted on the "uninvite" action 
      if ( BP_Groups_Member::check_for_membership_request( $friend_id, $group_id ) ) { 
          return; 
      } 
 
      // Remove the unsent invitation 
      if ( ! groups_uninvite_user( $friend_id, $group_id ) ) { 
          return; 
      } 
 
      exit; 
 
  } else { 
      return; 
  } 
} 
 
/** 
 * Friend/un-friend a user via a POST request. 
 * 
 * @return string HTML 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_ajax_addremove_friend() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  // Cast fid as an integer 
  $friend_id = (int) $_POST['fid']; 
 
  // Trying to cancel friendship 
  if ( 'is_friend' == BP_Friends_Friendship::check_is_friend( bp_loggedin_user_id(), $friend_id ) ) { 
      check_ajax_referer( 'friends_remove_friend' ); 
 
      if ( ! friends_remove_friend( bp_loggedin_user_id(), $friend_id ) ) { 
          echo __( 'Friendship could not be canceled.', 'buddypress' ); 
      } else { 
          echo '<a id="friend-' . esc_attr( $friend_id ) . '" class="add" rel="add" title="' . __( 'Add Friend', 'buddypress' ) . '" href="' . wp_nonce_url( bp_loggedin_user_domain() . bp_get_friends_slug() . '/add-friend/' . $friend_id, 'friends_add_friend' ) . '">' . __( 'Add Friend', 'buddypress' ) . '</a>'; 
      } 
 
  // Trying to request friendship 
  } elseif ( 'not_friends' == BP_Friends_Friendship::check_is_friend( bp_loggedin_user_id(), $friend_id ) ) { 
      check_ajax_referer( 'friends_add_friend' ); 
 
      if ( ! friends_add_friend( bp_loggedin_user_id(), $friend_id ) ) { 
          echo __(' Friendship could not be requested.', 'buddypress' ); 
      } else { 
          echo '<a id="friend-' . esc_attr( $friend_id ) . '" class="remove" rel="remove" title="' . __( 'Cancel Friendship Request', 'buddypress' ) . '" href="' . wp_nonce_url( bp_loggedin_user_domain() . bp_get_friends_slug() . '/requests/cancel/' . $friend_id . '/', 'friends_withdraw_friendship' ) . '" class="requested">' . __( 'Cancel Friendship Request', 'buddypress' ) . '</a>'; 
      } 
 
  // Trying to cancel pending request 
  } elseif ( 'pending' == BP_Friends_Friendship::check_is_friend( bp_loggedin_user_id(), $friend_id ) ) { 
      check_ajax_referer( 'friends_withdraw_friendship' ); 
 
      if ( friends_withdraw_friendship( bp_loggedin_user_id(), $friend_id ) ) { 
          echo '<a id="friend-' . esc_attr( $friend_id ) . '" class="add" rel="add" title="' . __( 'Add Friend', 'buddypress' ) . '" href="' . wp_nonce_url( bp_loggedin_user_domain() . bp_get_friends_slug() . '/add-friend/' . $friend_id, 'friends_add_friend' ) . '">' . __( 'Add Friend', 'buddypress' ) . '</a>'; 
      } else { 
          echo __("Friendship request could not be cancelled.", 'buddypress'); 
      } 
 
  // Request already pending 
  } else { 
      echo __( 'Request Pending', 'buddypress' ); 
  } 
 
  exit; 
} 
 
/** 
 * Accept a user friendship request via a POST request. 
 * 
 * @return mixed String on error, void on success 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_ajax_accept_friendship() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  check_admin_referer( 'friends_accept_friendship' ); 
 
  if ( ! friends_accept_friendship( (int) $_POST['id'] ) ) 
      echo "-1<div id='message' class='error'><p>" . __( 'There was a problem accepting that request. Please try again.', 'buddypress' ) . '</p></div>'; 
 
  exit; 
} 
 
/** 
 * Reject a user friendship request via a POST request. 
 * 
 * @return mixed String on error, void on success 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_ajax_reject_friendship() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  check_admin_referer( 'friends_reject_friendship' ); 
 
  if ( ! friends_reject_friendship( (int) $_POST['id'] ) ) 
      echo "-1<div id='message' class='error'><p>" . __( 'There was a problem rejecting that request. Please try again.', 'buddypress' ) . '</p></div>'; 
 
  exit; 
} 
 
/** 
 * Join or leave a group when clicking the "join/leave" button via a POST request. 
 * 
 * @return string HTML 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_ajax_joinleave_group() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  // Cast gid as integer 
  $group_id = (int) $_POST['gid']; 
 
  if ( groups_is_user_banned( bp_loggedin_user_id(), $group_id ) ) 
      return; 
 
  if ( ! $group = groups_get_group( array( 'group_id' => $group_id ) ) ) 
      return; 
 
  if ( ! groups_is_user_member( bp_loggedin_user_id(), $group->id ) ) { 
      if ( 'public' == $group->status ) { 
          check_ajax_referer( 'groups_join_group' ); 
 
          if ( ! groups_join_group( $group->id ) ) { 
              _e( 'Error joining group', 'buddypress' ); 
          } else { 
              echo '<a id="group-' . esc_attr( $group->id ) . '" class="leave-group" rel="leave" title="' . __( 'Leave Group', 'buddypress' ) . '" href="' . wp_nonce_url( bp_get_group_permalink( $group ) . 'leave-group', 'groups_leave_group' ) . '">' . __( 'Leave Group', 'buddypress' ) . '</a>'; 
          } 
 
      } elseif ( 'private' == $group->status ) { 
 
          // If the user has already been invited, then this is 
          // an Accept Invitation button 
          if ( groups_check_user_has_invite( bp_loggedin_user_id(), $group->id ) ) { 
              check_ajax_referer( 'groups_accept_invite' ); 
 
              if ( ! groups_accept_invite( bp_loggedin_user_id(), $group->id ) ) { 
                  _e( 'Error requesting membership', 'buddypress' ); 
              } else { 
                  echo '<a id="group-' . esc_attr( $group->id ) . '" class="leave-group" rel="leave" title="' . __( 'Leave Group', 'buddypress' ) . '" href="' . wp_nonce_url( bp_get_group_permalink( $group ) . 'leave-group', 'groups_leave_group' ) . '">' . __( 'Leave Group', 'buddypress' ) . '</a>'; 
              } 
 
          // Otherwise, it's a Request Membership button 
          } else { 
              check_ajax_referer( 'groups_request_membership' ); 
 
              if ( ! groups_send_membership_request( bp_loggedin_user_id(), $group->id ) ) { 
                  _e( 'Error requesting membership', 'buddypress' ); 
              } else { 
                  echo '<a id="group-' . esc_attr( $group->id ) . '" class="membership-requested" rel="membership-requested" title="' . __( 'Membership Requested', 'buddypress' ) . '" href="' . bp_get_group_permalink( $group ) . '">' . __( 'Membership Requested', 'buddypress' ) . '</a>'; 
              } 
          } 
      } 
 
  } else { 
      check_ajax_referer( 'groups_leave_group' ); 
 
      if ( ! groups_leave_group( $group->id ) ) { 
          _e( 'Error leaving group', 'buddypress' ); 
      } elseif ( 'public' == $group->status ) { 
          echo '<a id="group-' . esc_attr( $group->id ) . '" class="join-group" rel="join" title="' . __( 'Join Group', 'buddypress' ) . '" href="' . wp_nonce_url( bp_get_group_permalink( $group ) . 'join', 'groups_join_group' ) . '">' . __( 'Join Group', 'buddypress' ) . '</a>'; 
      } elseif ( 'private' == $group->status ) { 
          echo '<a id="group-' . esc_attr( $group->id ) . '" class="request-membership" rel="join" title="' . __( 'Request Membership', 'buddypress' ) . '" href="' . wp_nonce_url( bp_get_group_permalink( $group ) . 'request-membership', 'groups_send_membership_request' ) . '">' . __( 'Request Membership', 'buddypress' ) . '</a>'; 
      } 
  } 
 
  exit; 
} 
 
/** 
 * Close and keep closed site wide notices from an admin in the sidebar, via a POST request. 
 * 
 * @return mixed String on error, void on success 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_ajax_close_notice() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  if ( ! isset( $_POST['notice_id'] ) ) { 
      echo "-1<div id='message' class='error'><p>" . __( 'There was a problem closing the notice.', 'buddypress' ) . '</p></div>'; 
 
  } else { 
      $user_id = get_current_user_id(); 
      $notice_ids = bp_get_user_meta( $user_id, 'closed_notices', true ); 
      $notice_ids[] = (int) $_POST['notice_id']; 
 
      bp_update_user_meta( $user_id, 'closed_notices', $notice_ids ); 
  } 
 
  exit; 
} 
 
/** 
 * Send a private message reply to a thread via a POST request. 
 * 
 * @return string HTML 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_ajax_messages_send_reply() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  check_ajax_referer( 'messages_send_message' ); 
 
  $result = messages_new_message( array( 'thread_id' => (int) $_REQUEST['thread_id'], 'content' => $_REQUEST['content'] ) ); 
 
  if ( $result ) { ?> 
      <div class="message-box new-message"> 
          <div class="message-metadata"> 
              <?php do_action( 'bp_before_message_meta' ); ?> 
              <?php echo bp_loggedin_user_avatar( 'type=thumb&width=30&height=30' ); ?> 
 
              <strong><a href="<?php echo bp_loggedin_user_domain(); ?>"><?php bp_loggedin_user_fullname(); ?></a> <span class="activity"><?php printf( __( 'Sent %s', 'buddypress' ), bp_core_time_since( bp_core_current_time() ) ); ?></span></strong> 
 
              <?php do_action( 'bp_after_message_meta' ); ?> 
          </div> 
 
          <?php do_action( 'bp_before_message_content' ); ?> 
 
          <div class="message-content"> 
              <?php echo stripslashes( apply_filters( 'bp_get_the_thread_message_content', $_REQUEST['content'] ) ); ?> 
          </div> 
 
          <?php do_action( 'bp_after_message_content' ); ?> 
 
          <div class="clear"></div> 
      </div> 
  <?php 
  } else { 
      echo "-1<div id='message' class='error'><p>" . __( 'There was a problem sending that reply. Please try again.', 'buddypress' ) . '</p></div>'; 
  } 
 
  exit; 
} 
 
/** 
 * Mark a private message as unread in your inbox via a POST request. 
 * 
 * @return mixed String on error, void on success 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_ajax_message_markunread() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  if ( ! isset($_POST['thread_ids']) ) { 
      echo "-1<div id='message' class='error'><p>" . __( 'There was a problem marking messages as unread.', 'buddypress' ) . '</p></div>'; 
 
  } else { 
      $thread_ids = explode( ', ', $_POST['thread_ids'] ); 
 
      for ( $i = 0, $count = count( $thread_ids ); $i < $count; ++$i ) { 
          BP_Messages_Thread::mark_as_unread( (int) $thread_ids[$i] ); 
      } 
  } 
 
  exit; 
} 
 
/** 
 * Mark a private message as read in your inbox via a POST request. 
 * 
 * @return mixed String on error, void on success 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_ajax_message_markread() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  if ( ! isset($_POST['thread_ids']) ) { 
      echo "-1<div id='message' class='error'><p>" . __('There was a problem marking messages as read.', 'buddypress' ) . '</p></div>'; 
 
  } else { 
      $thread_ids = explode( ', ', $_POST['thread_ids'] ); 
 
      for ( $i = 0, $count = count( $thread_ids ); $i < $count; ++$i ) { 
          BP_Messages_Thread::mark_as_read( (int) $thread_ids[$i] ); 
      } 
  } 
 
  exit; 
} 
 
/** 
 * Delete a private message(s) in your inbox via a POST request. 
 * 
 * @return string HTML 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_ajax_messages_delete() { 
  // Bail if not a POST action 
  if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) 
      return; 
 
  if ( ! isset($_POST['thread_ids']) ) { 
      echo "-1<div id='message' class='error'><p>" . __( 'There was a problem deleting messages.', 'buddypress' ) . '</p></div>'; 
 
  } else { 
      $thread_ids = explode( ', ', $_POST['thread_ids'] ); 
 
      for ( $i = 0, $count = count( $thread_ids ); $i < $count; ++$i ) { 
          BP_Messages_Thread::delete( (int) $thread_ids[$i] ); 
      } 
 
      _e( 'Messages deleted.', 'buddypress' ); 
  } 
 
  exit; 
} 
 
/** 
 * AJAX handler for autocomplete. Displays friends only, unless BP_MESSAGES_AUTOCOMPLETE_ALL is defined. 
 * 
 * @return string HTML 
 * @since BuddyPress (1.2) 
 */ 
function bp_dtheme_ajax_messages_autocomplete_results() { 
 
  // Include everyone in the autocomplete, or just friends? 
  if ( bp_is_current_component( bp_get_messages_slug() ) ) 
      $autocomplete_all = buddypress()->messages->autocomplete_all; 
 
  $pag_page = 1; 
  $limit = (int) $_GET['limit'] ? $_GET['limit'] : apply_filters( 'bp_autocomplete_max_results', 10 ); 
 
  // Get the user ids based on the search terms 
  if ( ! empty( $autocomplete_all ) ) { 
      $users = BP_Core_User::search_users( $_GET['q'], $limit, $pag_page ); 
 
      if ( ! empty( $users['users'] ) ) { 
          // Build an array with the correct format 
          $user_ids = array(); 
          foreach( $users['users'] as $user ) { 
              if ( $user->id != bp_loggedin_user_id() ) { 
                  $user_ids[] = $user->id; 
              } 
          } 
 
          $user_ids = apply_filters( 'bp_core_autocomplete_ids', $user_ids, $_GET['q'], $limit ); 
      } 
 
  } else { 
      if ( bp_is_active( 'friends' ) ) { 
          $users = friends_search_friends( $_GET['q'], bp_loggedin_user_id(), $limit, 1 ); 
 
          // Keeping the bp_friends_autocomplete_list filter for backward compatibility 
          $users = apply_filters( 'bp_friends_autocomplete_list', $users, $_GET['q'], $limit ); 
 
          if ( ! empty( $users['friends'] ) ) { 
              $user_ids = apply_filters( 'bp_friends_autocomplete_ids', $users['friends'], $_GET['q'], $limit ); 
          } 
      } 
  } 
 
  if ( ! empty( $user_ids ) ) { 
      foreach ( $user_ids as $user_id ) { 
          $ud = get_userdata( $user_id ); 
          if ( ! $ud ) { 
              continue; 
          } 
 
          if ( bp_is_username_compatibility_mode() ) { 
              // Sanitize for spaces 
              $username = urlencode( $ud->user_login ); 
          } else { 
              $username = $ud->user_nicename; 
          } 
 
          // Note that the final line break acts as a delimiter for the 
          // autocomplete javascript and thus should not be removed 
          echo '<span id="link-' . esc_attr( $username ) . '" href="' . bp_core_get_user_domain( $user_id ) . '"></span>' . bp_core_fetch_avatar( array( 'item_id' => $user_id, 'type' => 'thumb', 'width' => 15, 'height' => 15, 'alt' => $ud->display_name ) ) . '  ' . bp_core_get_user_displayname( $user_id ) . ' (' . esc_html( $username ) . ')' . "\n"; 
      } 
  } 
 
  exit; 
}