/wp-content/plugins/buddypress/bp-activity/bp-activity-filters.php

<?php



/* Apply WordPress defined filters */

add_filter( 'bp_get_activity_action', 'bp_activity_filter_kses', 1 );

add_filter( 'bp_get_activity_content_body', 'bp_activity_filter_kses', 1 );

add_filter( 'bp_get_activity_content', 'bp_activity_filter_kses', 1 );

add_filter( 'bp_get_activity_parent_content', 'bp_activity_filter_kses', 1 );

add_filter( 'bp_get_activity_latest_update', 'bp_activity_filter_kses', 1 );

add_filter( 'bp_get_activity_latest_update_excerpt', 'bp_activity_filter_kses', 1 );

add_filter( 'bp_get_activity_feed_item_description', 'bp_activity_filter_kses', 1 );

add_filter( 'bp_activity_content_before_save', 'bp_activity_filter_kses', 1 );

add_filter( 'bp_activity_action_before_save', 'bp_activity_filter_kses', 1 );



add_filter( 'bp_get_activity_action', 'force_balance_tags' );

add_filter( 'bp_get_activity_content_body', 'force_balance_tags' );

add_filter( 'bp_get_activity_content', 'force_balance_tags' );

add_filter( 'bp_get_activity_latest_update', 'force_balance_tags' );

add_filter( 'bp_get_activity_latest_update_excerpt', 'force_balance_tags' );

add_filter( 'bp_get_activity_feed_item_description', 'force_balance_tags' );



add_filter( 'bp_get_activity_action', 'wptexturize' );

add_filter( 'bp_get_activity_content_body', 'wptexturize' );

add_filter( 'bp_get_activity_content', 'wptexturize' );

add_filter( 'bp_get_activity_parent_content', 'wptexturize' );

add_filter( 'bp_get_activity_latest_update', 'wptexturize' );

add_filter( 'bp_get_activity_latest_update_excerpt', 'wptexturize' );



add_filter( 'bp_get_activity_action', 'convert_smilies' );

add_filter( 'bp_get_activity_content_body', 'convert_smilies' );

add_filter( 'bp_get_activity_content', 'convert_smilies' );

add_filter( 'bp_get_activity_parent_content', 'convert_smilies' );

add_filter( 'bp_get_activity_latest_update', 'convert_smilies' );

add_filter( 'bp_get_activity_latest_update_excerpt', 'convert_smilies' );



add_filter( 'bp_get_activity_action', 'convert_chars' );

add_filter( 'bp_get_activity_content_body', 'convert_chars' );

add_filter( 'bp_get_activity_content', 'convert_chars' );

add_filter( 'bp_get_activity_parent_content', 'convert_chars' );

add_filter( 'bp_get_activity_latest_update', 'convert_chars' );

add_filter( 'bp_get_activity_latest_update_excerpt', 'convert_chars' );



add_filter( 'bp_get_activity_action', 'wpautop' );

add_filter( 'bp_get_activity_content_body', 'wpautop' );

add_filter( 'bp_get_activity_content', 'wpautop' );

add_filter( 'bp_get_activity_feed_item_description', 'wpautop' );



add_filter( 'bp_get_activity_action', 'make_clickable' );

add_filter( 'bp_get_activity_content_body', 'make_clickable' );

add_filter( 'bp_get_activity_content', 'make_clickable' );

add_filter( 'bp_get_activity_parent_content', 'make_clickable' );

add_filter( 'bp_get_activity_latest_update', 'make_clickable' );

add_filter( 'bp_get_activity_latest_update_excerpt', 'make_clickable' );

add_filter( 'bp_get_activity_feed_item_description', 'make_clickable' );



add_filter( 'bp_acomment_name', 'stripslashes_deep' );

add_filter( 'bp_get_activity_action', 'stripslashes_deep' );

add_filter( 'bp_get_activity_content', 'stripslashes_deep' );

add_filter( 'bp_get_activity_content_body', 'stripslashes_deep' );

add_filter( 'bp_get_activity_parent_content', 'stripslashes_deep' );

add_filter( 'bp_get_activity_latest_update', 'stripslashes_deep' );

add_filter( 'bp_get_activity_latest_update_excerpt', 'stripslashes_deep' );

add_filter( 'bp_get_activity_feed_item_description', 'stripslashes_deep' );



add_filter( 'bp_get_activity_content', 'bp_activity_make_nofollow_filter' );

add_filter( 'bp_get_activity_content_body', 'bp_activity_make_nofollow_filter' );

add_filter( 'bp_get_activity_parent_content', 'bp_activity_make_nofollow_filter' );

add_filter( 'bp_get_activity_latest_update', 'bp_activity_make_nofollow_filter' );

add_filter( 'bp_get_activity_latest_update_excerpt', 'bp_activity_make_nofollow_filter' );

add_filter( 'bp_get_activity_feed_item_description', 'bp_activity_make_nofollow_filter' );



add_filter( 'bp_get_activity_parent_content', 'bp_create_excerpt' );



/* Allow shortcodes in activity posts */

add_filter( 'bp_get_activity_content', 'do_shortcode' );

add_filter( 'bp_get_activity_content_body', 'do_shortcode' );



function bp_activity_filter_kses( $content ) {

	global $allowedtags;



	$activity_allowedtags = $allowedtags;

	$activity_allowedtags['span'] = array();

	$activity_allowedtags['span']['class'] = array();

	$activity_allowedtags['div'] = array();

	$activity_allowedtags['div']['class'] = array();

	$activity_allowedtags['div']['id'] = array();

	$activity_allowedtags['a']['class'] = array();

	$activity_allowedtags['img'] = array();

	$activity_allowedtags['img']['src'] = array();

	$activity_allowedtags['img']['alt'] = array();

	$activity_allowedtags['img']['class'] = array();

	$activity_allowedtags['img']['width'] = array();

	$activity_allowedtags['img']['height'] = array();

	$activity_allowedtags['img']['class'] = array();

	$activity_allowedtags['img']['id'] = array();

	$activity_allowedtags['img']['title'] = array();

	$activity_allowedtags['code'] = array();



	$activity_allowedtags = apply_filters( 'bp_activity_allowed_tags', $activity_allowedtags );

	return wp_kses( $content, $activity_allowedtags );

}



function bp_activity_at_name_filter( $content ) {

	include_once( ABSPATH . WPINC . '/registration.php' );



	$pattern = '/[@]+([A-Za-z0-9-_]+)/';

	preg_match_all( $pattern, $content, $usernames );



	/* Make sure there's only one instance of each username */

	if ( !$usernames = array_unique( $usernames[1] ) )

		return $content;



	foreach( (array)$usernames as $username ) {

		if ( !$user_id = username_exists( $username ) )

			continue;



		/* Increase the number of new @ mentions for the user */

		$new_mention_count = (int)get_usermeta( $user_id, 'bp_new_mention_count' );

		update_usermeta( $user_id, 'bp_new_mention_count', $new_mention_count + 1 );



		$content = str_replace( "@$username", "<a href='" . bp_core_get_user_domain( bp_core_get_userid( $username ) ) . "' rel='nofollow'>@$username</a>", $content );

	}



	return $content;

}

add_filter( 'bp_activity_new_update_content', 'bp_activity_at_name_filter' );

add_filter( 'groups_activity_new_update_content', 'bp_activity_at_name_filter' );

add_filter( 'pre_comment_content', 'bp_activity_at_name_filter' );

add_filter( 'group_forum_topic_text_before_save', 'bp_activity_at_name_filter' );

add_filter( 'group_forum_post_text_before_save', 'bp_activity_at_name_filter' );

add_filter( 'bp_activity_comment_content', 'bp_activity_at_name_filter' );



function bp_activity_make_nofollow_filter( $text ) {

	return preg_replace_callback( '|<a (.+?)>|i', 'bp_activity_make_nofollow_filter_callback', $text );

}

	function bp_activity_make_nofollow_filter_callback( $matches ) {

		$text = $matches[1];

		$text = str_replace( array( ' rel="nofollow"', " rel='nofollow'"), '', $text );

		return "<a $text rel=\"nofollow\">";

	}



?>