core.wp-pluggable-funcs.php

<?php

/*
 * These functions can be replaced via plugins. They are loaded after
 * plugins are loaded.
 */
function _get_nextprev_link($nextprev) {
	global $fpdb;
	$q = & $fpdb->getQuery();

	list ($caption, $id) = call_user_func(array(
		&$q,
		'get' . $nextprev
	));

	if (!$id)
		return null;

	if ($q->single) {
		$link = "?entry={$id}";
	} else {
		if ($_SERVER ['QUERY_STRING']) {

			if (strpos($_SERVER ['QUERY_STRING'], 'paged') !== false) {
				$link = '?' . preg_replace('{paged=[0-9]+}', "paged={$id}", $_SERVER ['QUERY_STRING']);
			} else {
				$link = '?' . $_SERVER ['QUERY_STRING'] . "&paged={$id}";
			}
			$link = str_replace('&', '&amp;', $link);
		} else {
			$link = "?paged={$id}";
		}
	}

	return array(
		$caption,
		BLOG_BASEURL . $link
	);
}

if (!function_exists('get_nextpage_link')) :

	function get_nextpage_link() {
		global $fpdb;
		$q = & $fpdb->getQuery();

		$a = _get_nextprev_link('NextPage');

		if ($q->single) {
			$a [0] .= ' &raquo; ';
		}

		return $a;
	}
	endif;

if (!function_exists('get_prevpage_link')) :

	function get_prevpage_link() {
		global $fpdb;
		$q = & $fpdb->getQuery();

		$a = _get_nextprev_link('PrevPage');

		if ($q->single) {
			$a [0] = ' &laquo; ' . $a [0];
		}

		return $a;
	}
	endif;


function wp_filter_kses($str) {
	return $str;
}

// ----------------------------------------------------------------------------
// WordPress pluggable functions
// ----------------------------------------------------------------------------

/*
 * get_currentuserinfo()
 * Grabs the information of the current logged in user, if there is one. Essentially a
 * wrapper for get_userdata(), but it also stores information in global variables.
 * get_userdata($userid)
 * Pulls user information for the specified user from the database.
 * get_userdatabylogin($user_login)
 * Pulls user information for the specified user from the database.
 * wp_mail($to, $subject, $message, $headers = '')
 * A convenient wrapper for PHP's mail function.
 * wp_login($username, $password, $already_md5 = false)
 * Returns true if the specified username and password correspond to a registered
 * user.
 * auth_redirect()
 * If a user is not logged in, he or she will be redirected to WordPress' login page before
 * being allowed to access content on the page from which this function was called.
 * Upon sucessfully logging in, the user is sent back to the page in question.
 * wp_redirect($location)
 * Redirects a browser to the absolute URI specified by the $location parameter.
 * wp_setcookie($username, $password, $already_md5 = false, $home =
 * '', $siteurl = '')
 * Sets the WordPress cookies for a logged in user. See WordPress Cookies.
 * wp_clearcookie()
 * Clears the cookies for a logged in user. See WordPress Cookies.
 * wp_notify_postauthor($comment_id, $comment_type='')
 * Emails the author of the comment's post the content of the comment specified.
 * wp_notify_moderator($comment_id)
 * Informs the administrative email account that the comment specified needs to be
 * moderated. See General Options SubPanel.
 */

if (!function_exists('get_currentuserinfo')) :

	function get_currentuserinfo() {
		/*
		 * global $user_login, $userdata, $user_level, $user_ID, $user_nickname, $user_email, $user_url, $user_pass_md5, $user_identity;
		 * // *** retrieving user's data from cookies and db - no spoofing
		 *
		 * if (isset($_COOKIE['wordpressuser_' . COOKIEHASH]))
		 * $user_login = $_COOKIE['wordpressuser_' . COOKIEHASH];
		 * $userdata = get_userdatabylogin($user_login);
		 * $user_level = $userdata->user_level;
		 * $user_ID = $userdata->ID;
		 * $user_nickname = $userdata->user_nickname;
		 * $user_email = $userdata->user_email;
		 * $user_url = $userdata->user_url;
		 * $user_pass_md5 = md5($userdata->user_pass);
		 *
		 * $idmode = $userdata->user_idmode;
		 * if ($idmode == 'nickname') $user_identity = $userdata->user_nickname;
		 * if ($idmode == 'login') $user_identity = $userdata->user_login;
		 * if ($idmode == 'firstname') $user_identity = $userdata->user_firstname;
		 * if ($idmode == 'lastname') $user_identity = $userdata->user_lastname;
		 * if ($idmode == 'namefl') $user_identity = $userdata->user_firstname.' '.$userdata->user_lastname;
		 * if ($idmode == 'namelf') $user_identity = $userdata->user_lastname.' '.$userdata->user_firstname;
		 * if (!$idmode) $user_identity = $userdata->user_nickname;
		 */
	}
endif;

if (!function_exists('get_userdata')) :

	function get_userdata($userid) {
		/*
		 * global $wpdb, $cache_userdata;
		 * $userid = (int) $userid;
		 * if ( empty($cache_userdata[$userid]) && $userid != 0) {
		 * $cache_userdata[$userid] = $wpdb->get_row("SELECT * FROM $wpdb->users WHERE ID = $userid");
		 * $cache_userdata[$cache_userdata[$userid]->user_login] =& $cache_userdata[$userid];
		 * }
		 *
		 * return $cache_userdata[$userid];
		 */
	}
endif;

if (!function_exists('get_userdatabylogin')) :

	function get_userdatabylogin($user_login) {
		/*
		 * global $cache_userdata, $wpdb;
		 * if ( !empty($user_login) && empty($cache_userdata[$user_login]) ) {
		 * $user = $wpdb->get_row("SELECT * FROM $wpdb->users WHERE user_login = '$user_login'"); // todo: get rid of this intermediate var
		 * $cache_userdata[$user->ID] = $user;
		 * $cache_userdata[$user_login] =& $cache_userdata[$user->ID];
		 * } else {
		 * $user = $cache_userdata[$user_login];
		 * }
		 * return $user;
		 */
	}
endif;

if (!function_exists('wp_mail')) :

	function wp_mail($to, $subject, $message, $headers = '') {
		if ($headers == '') {
			$headers = "MIME-Version: 1.0\n" . "From: " . get_settings('admin_email') . "\n" . "Content-Type: text/plain; charset=\"" . get_settings('blog_charset') . "\"\n";
		}

		return @mail($to, $subject, $message, $headers);
	}
endif;

if (!function_exists('wp_login')) :

	function wp_login($username, $password, $already_md5 = false) {
		/*
		 * global $wpdb, $error;
		 *
		 * if ( !$username )
		 * return false;
		 *
		 * if ( !$password ) {
		 * $error = __('<strong>Error</strong>: The password field is empty.');
		 * return false;
		 * }
		 *
		 * $login = $wpdb->get_row("SELECT ID, user_login, user_pass FROM $wpdb->users WHERE user_login = '$username'");
		 *
		 * if (!$login) {
		 * $error = __('<strong>Error</strong>: Wrong username.');
		 * return false;
		 * } else {
		 * // If the password is already_md5, it has been double hashed.
		 * // Otherwise, it is plain text.
		 * if ( ($already_md5 && $login->user_login == $username && md5($login->user_pass) == $password) || ($login->user_login == $username && $login->user_pass == md5($password)) ) {
		 * return true;
		 * } else {
		 * $error = __('<strong>Error</strong>: Incorrect password.');
		 * $pwd = '';
		 * return false;
		 * }
		 * }
		 */
	}
endif;

if (!function_exists('auth_redirect')) :

	function auth_redirect() {
		// Checks if a user is logged in, if not redirects them to the login page
		/*
		 * if ( (!empty($_COOKIE['wordpressuser_' . COOKIEHASH]) &&
		 * !wp_login($_COOKIE['wordpressuser_' . COOKIEHASH], $_COOKIE['wordpresspass_' . COOKIEHASH], true)) ||
		 * (empty($_COOKIE['wordpressuser_' . COOKIEHASH])) ) {
		 * header('Expires: Wed, 11 Jan 1984 05:00:00 GMT');
		 * header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
		 * header('Cache-Control: no-cache, must-revalidate, max-age=0');
		 * header('Pragma: no-cache');
		 *
		 * header('Location: ' . get_settings('siteurl') . '/wp-login.php?redirect_to=' . urlencode($_SERVER['REQUEST_URI']));
		 * exit();
		 * }
		 */
	}
endif;

	// Cookie safe redirect. Works around IIS Set-Cookie bug.
	// http://support.microsoft.com/kb/q176113/
if (!function_exists('wp_redirect')) :

	function wp_redirect($location, $status = 302) {
		global $is_IIS;

		$location = apply_filters('wp_redirect', $location, $status);

		if (!$location) // allows the wp_redirect filter to cancel a redirect
			return false;

		$location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%]|i', '', $location);
		// $location = wp_kses_no_null($location);

		$location = preg_replace('/\0+/', '', $location);
		$location = preg_replace('/(\\\\0)+/', '', $location);

		$strip = array(
			'%0d',
			'%0a'
		);
		$location = str_replace($strip, '', $location);

		if ($is_IIS) {
			header("Refresh: 0;url=$location");
		} else {
			if (php_sapi_name() != 'cgi-fcgi')
				utils_status_header($status); // This causes problems on IIS and some FastCGI setups
			header("Location: $location");
		}
	}
endif;

if (!function_exists('wp_setcookie')) :

	function wp_setcookie($username, $password, $already_md5 = false, $home = '', $siteurl = '') {
		if (!$already_md5)
			$password = md5(md5($password)); // Double hash the password in the cookie.

		if (empty($home))
			$cookiepath = COOKIEPATH;
		else
			$cookiepath = preg_replace('|https?://[^/]+|i', '', $home . '/');

		if (empty($siteurl)) {
			$sitecookiepath = SITECOOKIEPATH;
			$cookiehash = COOKIEHASH;
		} else {
			$sitecookiepath = preg_replace('|https?://[^/]+|i', '', $siteurl . '/');
			$cookiehash = md5($siteurl);
		}

		setcookie('wordpressuser_' . $cookiehash, $username, time() + 31536000, $cookiepath, COOKIE_SECURE);
		setcookie('wordpresspass_' . $cookiehash, $password, time() + 31536000, $cookiepath, COOKIE_SECURE);

		if ($cookiepath != $sitecookiepath) {
			setcookie('wordpressuser_' . $cookiehash, $username, time() + 31536000, $sitecookiepath, COOKIE_SECURE);
			setcookie('wordpresspass_' . $cookiehash, $password, time() + 31536000, $sitecookiepath, COOKIE_SECURE);
		}
	}
endif;

if (!function_exists('wp_clearcookie')) :

	function wp_clearcookie() {
		setcookie('wordpressuser_' . COOKIEHASH, ' ', time() - 31536000, COOKIEPATH, COOKIE_SECURE);
		setcookie('wordpresspass_' . COOKIEHASH, ' ', time() - 31536000, COOKIEPATH, COOKIE_SECURE);
		setcookie('wordpressuser_' . COOKIEHASH, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_SECURE);
		setcookie('wordpresspass_' . COOKIEHASH, ' ', time() - 31536000, SITECOOKIEPATH, COOKIE_SECURE);
	}
endif;

if (!function_exists('check_admin_referer')) :

	function check_admin_referer($action = -1) {
		$adminurl = BLOG_BASEURL . 'admin.php';
		$referer = strtolower(wp_get_referer());
		if (!wp_verify_nonce(@$_REQUEST ['_wpnonce'], $action) && !(-1 == $action && strstr($referer, $adminurl))) {
			wp_nonce_ays($action);
			die();
		}
		do_action('check_admin_referer', $action);
	}
endif;

if (!function_exists('wp_verify_nonce')) :

	function wp_verify_nonce($nonce, $action = -1) {
		$user = user_get();
		$uid = $user ['userid'];

		$i = ceil(time() / 43200);

		// Allow for expanding range, but only do one check if we can
		if (substr(wp_hash($i . $action . $uid), -12, 10) == $nonce || substr(wp_hash(($i - 1) . $action . $uid), -12, 10) == $nonce)
			return true;
		return false;
	}
endif;

if (!function_exists('wp_create_nonce')) :

	function wp_create_nonce($action = -1) {
		$user = user_get();
		$uid = $user ['userid'];

		$i = ceil(time() / 43200);

		return substr(wp_hash($i . $action . $uid), -12, 10);
	}
endif;

if (!function_exists('wp_salt')) :

	/**
	 *
	 * @return NULL|unknown
	 * @deprecated as of FlatPress 1.2 - still here only to be able to update pre-1.2 credentials
	 */
	function wp_salt() {
		global $fp_config;
		static $salt = null;
		if (!$salt) {
			@include (HASHSALT_FILE);
			if (!$fp_hashsalt)
				trigger_error('Cannot load hash salt: reinstall FlatPress', E_USER_ERROR);

			$salt = $fp_hashsalt;
		}
		return $salt;
	}
endif;

if (!function_exists('wp_hash')) :

	/**
	 *
	 * @param unknown $data
	 * @return string
	 * @deprecated as of FlatPress 1.2 - still here only to be able to update pre-1.2 credentials
	 */
	function wp_hash($data) {
		$salt = wp_salt();
		return md5($data . $salt);
	}
endif;

if (!function_exists('wp_notify_postauthor')) :

	function wp_notify_postauthor($comment_id, $comment_type = '') {
		/*
		 * global $wpdb;
		 *
		 * $comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID='$comment_id' LIMIT 1");
		 * $post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID='$comment->comment_post_ID' LIMIT 1");
		 * $user = $wpdb->get_row("SELECT * FROM $wpdb->users WHERE ID='$post->post_author' LIMIT 1");
		 *
		 * if ('' == $user->user_email) return false; // If there's no email to send the comment to
		 *
		 * $comment_author_domain = gethostbyaddr($comment->comment_author_IP);
		 *
		 * $blogname = get_settings('blogname');
		 *
		 * if ( empty( $comment_type ) ) $comment_type = 'comment';
		 *
		 * if ('comment' == $comment_type) {
		 * $notify_message = sprintf( __('New comment on your post #%1$s "%2$s"'), $comment->comment_post_ID, $post->post_title ) . "\r\n";
		 * $notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
		 * $notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n";
		 * $notify_message .= sprintf( __('URI : %s'), $comment->comment_author_url ) . "\r\n";
		 * $notify_message .= sprintf( __('Whois : http://ws.arin.net/cgi-bin/whois.pl?queryinput=%s'), $comment->comment_author_IP ) . "\r\n";
		 * $notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
		 * $notify_message .= __('You can see all comments on this post here: ') . "\r\n";
		 * $subject = sprintf( __('[%1$s] Comment: "%2$s"'), $blogname, $post->post_title );
		 * } elseif ('trackback' == $comment_type) {
		 * $notify_message = sprintf( __('New trackback on your post #%1$s "%2$s"'), $comment->comment_post_ID, $post->post_title ) . "\r\n";
		 * $notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
		 * $notify_message .= sprintf( __('URI : %s'), $comment->comment_author_url ) . "\r\n";
		 * $notify_message .= __('Excerpt: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
		 * $notify_message .= __('You can see all trackbacks on this post here: ') . "\r\n";
		 * $subject = sprintf( __('[%1$s] Trackback: "%2$s"'), $blogname, $post->post_title );
		 * } elseif ('pingback' == $comment_type) {
		 * $notify_message = sprintf( __('New pingback on your post #%1$s "%2$s"'), $comment->comment_post_ID, $post->post_title ) . "\r\n";
		 * $notify_message .= sprintf( __('Website: %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
		 * $notify_message .= sprintf( __('URI : %s'), $comment->comment_author_url ) . "\r\n";
		 * $notify_message .= __('Excerpt: ') . "\r\n" . sprintf( __('[...] %s [...]'), $comment->comment_content ) . "\r\n\r\n";
		 * $notify_message .= __('You can see all pingbacks on this post here: ') . "\r\n";
		 * $subject = sprintf( __('[%1$s] Pingback: "%2$s"'), $blogname, $post->post_title );
		 * }
		 * $notify_message .= get_permalink($comment->comment_post_ID) . "#comments\r\n\r\n";
		 * $notify_message .= sprintf( __('To delete this comment, visit: %s'), get_settings('siteurl').'/wp-admin/post.php?action=confirmdeletecomment&p='.$comment->comment_post_ID."&comment=$comment_id" ) . "\r\n";
		 *
		 * if ('' == $comment->comment_author_email || '' == $comment->comment_author) {
		 * $from = "From: \"$blogname\" <wordpress@" . $_SERVER['SERVER_NAME'] . '>';
		 * } else {
		 * $from = 'From: "' . $comment->comment_author . "\" <$comment->comment_author_email>";
		 * }
		 *
		 * $notify_message = apply_filters('comment_notification_text', $notify_message);
		 * $subject = apply_filters('comment_notification_subject', $subject);
		 * $message_headers = apply_filters('comment_notification_headers', $message_headers);
		 *
		 * $message_headers = "MIME-Version: 1.0\n"
		 * . "$from\n"
		 * . "Content-Type: text/plain; charset=\"" . get_settings('blog_charset') . "\"\n";
		 *
		 * @wp_mail($user->user_email, $subject, $notify_message, $message_headers);
		 *
		 * return true;
		 */
	}
endif;

	/*
 * wp_notify_moderator
 * notifies the moderator of the blog (usually the admin)
 * about a new comment that waits for approval
 * always returns true
 */
if (!function_exists('wp_notify_moderator')) :

	function wp_notify_moderator($comment_id) {
		/*
		 * global $wpdb;
		 *
		 * if( get_settings( "moderation_notify" ) == 0 )
		 * return true;
		 *
		 * $comment = $wpdb->get_row("SELECT * FROM $wpdb->comments WHERE comment_ID='$comment_id' LIMIT 1");
		 * $post = $wpdb->get_row("SELECT * FROM $wpdb->posts WHERE ID='$comment->comment_post_ID' LIMIT 1");
		 *
		 * $comment_author_domain = gethostbyaddr($comment->comment_author_IP);
		 * $comments_waiting = $wpdb->get_var("SELECT count(comment_ID) FROM $wpdb->comments WHERE comment_approved = '0'");
		 *
		 * $notify_message = sprintf( __('A new comment on the post #%1$s "%2$s" is waiting for your approval'), $post->ID, $post->post_title ) . "\r\n";
		 * $notify_message .= get_permalink($comment->comment_post_ID) . "\r\n\r\n";
		 * $notify_message .= sprintf( __('Author : %1$s (IP: %2$s , %3$s)'), $comment->comment_author, $comment->comment_author_IP, $comment_author_domain ) . "\r\n";
		 * $notify_message .= sprintf( __('E-mail : %s'), $comment->comment_author_email ) . "\r\n";
		 * $notify_message .= sprintf( __('URI : %s'), $comment->comment_author_url ) . "\r\n";
		 * $notify_message .= sprintf( __('Whois : http://ws.arin.net/cgi-bin/whois.pl?queryinput=%s'), $comment->comment_author_IP ) . "\r\n";
		 * $notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
		 * $notify_message .= sprintf( __('To approve this comment, visit: %s'), get_settings('siteurl').'/wp-admin/post.php?action=mailapprovecomment&p='.$comment->comment_post_ID."&comment=$comment_id" ) . "\r\n";
		 * $notify_message .= sprintf( __('To delete this comment, visit: %s'), get_settings('siteurl').'/wp-admin/post.php?action=confirmdeletecomment&p='.$comment->comment_post_ID."&comment=$comment_id" ) . "\r\n";
		 * $notify_message .= sprintf( __('Currently %s comments are waiting for approval. Please visit the moderation panel:'), $comments_waiting ) . "\r\n";
		 * $notify_message .= get_settings('siteurl') . "/wp-admin/moderation.php\r\n";
		 *
		 * $subject = sprintf( __('[%1$s] Please moderate: "%2$s"'), get_settings('blogname'), $post->post_title );
		 * $admin_email = get_settings("admin_email");
		 *
		 * $notify_message = apply_filters('comment_moderation_text', $notify_message);
		 * $subject = apply_filters('comment_moderation_subject', $subject);
		 *
		 * @wp_mail($admin_email, $subject, $notify_message);
		 *
		 * return true;
		 */
	}
endif;

?>