<?php
/************************************************************************
 * Mailer v0.2.1-FINAL                                Start: 01/21/2013 *
 * ===================                          Last change: 01/21/2013 *
 *                                                                      *
 * -------------------------------------------------------------------- *
 * File              : blacklist_functions.php                          *
 * -------------------------------------------------------------------- *
 * Short description : Functions for ext-                               *
 * -------------------------------------------------------------------- *
 * Kurzbeschreibung  : Funktionen fuer ext-                             *
 * -------------------------------------------------------------------- *
 * $Revision::                                                        $ *
 * $Date::                                                            $ *
 * $Tag:: 0.2.1-FINAL                                                 $ *
 * $Author::                                                          $ *
 * -------------------------------------------------------------------- *
 * Copyright (c) 2003 - 2009 by Roland Haeder                           *
 * Copyright (c) 2009 - 2012 by Mailer Developer Team                   *
 * For more information visit: http://mxchange.org                      *
 *                                                                      *
 * 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., 51 Franklin St, Fifth Floor, Boston,               *
 * MA  02110-1301  USA                                                  *
 ************************************************************************/

// Some security stuff...
if (!defined('__SECURITY')) {
	die();
} // END - if

// Inserts a given email (pattern) in blacklist if not found
function insertEmailInBlacklist ($email, $id) {
	// Is this feature turned on and is the URL not there?
	if (!isEmailBlacklistEnabled()) {
		// Not enabled, then please don't call this function
		reportBug(__FUNCTION__, __LINE__, 'URL blacklisting is disabled, email=' . $email . ',id=' . $id);
	} elseif (!isEmailBlacklisted($email)) {
		// Did not find a record so we can add it... :)
		SQL_QUERY_ESC("INSERT INTO `{?_MYSQL_PREFIX?}_blacklist` (`data`, `pool_id`, `type`) VALUES ('%s', %s, 'EMAIL')",
			array(
				$email,
				$id
			), __FUNCTION__, __LINE__);
	} // END - if
}

// Checks whether given email is blacklisted
function isEmailBlacklisted ($email) {
	// Mark it as not listed by default
	$listed = FALSE;

	// Is black-listing enbaled?
	if (!isEmailBlacklistEnabled()) {
		// No, then all emails are not in this list
		return FALSE;
	} elseif (!isset($GLOBALS['blacklist_data']['email'][$email])) {
		// Check black-list for given email
		$result = SQL_QUERY_ESC("SELECT UNIX_TIMESTAMP(`added`) AS `added` FROM `{?_MYSQL_PREFIX?}_blacklist` WHERE '%s' REGEXP `data` AND `type`='EMAIL' LIMIT 1",
			array($email), __FUNCTION__, __LINE__);

		// Is there an entry?
		if (SQL_NUMROWS($result) == 1) {
			// Jupp, we got one listed
			$GLOBALS['blacklist_data']['email'][$email] = SQL_FETCHARRAY($result);

			// Mark it as listed
			$listed = TRUE;
		} // END - if

		// Free result
		SQL_FREERESULT($result);
	} else {
		// Is found in cache -> black-listed
		$listed = TRUE;
	}

	// Return result
	return $listed;
}

// Inserts a given URL in blacklist if not found
function insertUrlInBlacklist ($url, $id) {
	// Is this feature turned on and is the URL not there?
	if (!isUrlBlacklistEnabled()) {
		// Not enabled, then please don't call this function
		reportBug(__FUNCTION__, __LINE__, 'URL blacklisting is disabled, url=' . $url . ',id=' . $id);
	} elseif (!isUrlBlacklisted($url)) {
		// Did not find a record so we can add it... :)
		SQL_QUERY_ESC("INSERT INTO `{?_MYSQL_PREFIX?}_blacklist` (`data`, `pool_id`, `type`) VALUES ('%s', %s, 'URL')",
			array(
				$url,
				$id
			), __FUNCTION__, __LINE__);
	} // END - if
}

// Checks whether given URL is blacklisted
function isUrlBlacklisted ($url) {
	// Mark it as not listed by default
	$listed = FALSE;

	// Is black-listing enbaled?
	if (!isUrlBlacklistEnabled()) {
		// No, then all URLs are not in this list
		return FALSE;
	} elseif (!isset($GLOBALS['blacklist_data']['url'][$url])) {
		// Check black-list for given URL
		$result = SQL_QUERY_ESC("SELECT UNIX_TIMESTAMP(`added`) AS `added`, `pool_id` FROM `{?_MYSQL_PREFIX?}_blacklist` WHERE `data`='%s' AND `type`='URL' LIMIT 1",
			array($url), __FUNCTION__, __LINE__);

		// Is there an entry?
		if (SQL_NUMROWS($result) == 1) {
			// Jupp, we got one listed
			$GLOBALS['blacklist_data']['url'][$url] = SQL_FETCHARRAY($result);

			// Mark it as listed
			$listed = TRUE;
		} // END - if

		// Free result
		SQL_FREERESULT($result);
	} else {
		// Is found in cache -> black-listed
		$listed = TRUE;
	}

	// Return result
	return $listed;
}

// ----------------------------------------------------------------------------
//                      Configuration wrapper functions
// ----------------------------------------------------------------------------

// Wrapper to check if url_blacklist is enabled
function isUrlBlacklistEnabled () {
	// Is there cache?
	if (!isset($GLOBALS[__FUNCTION__])) {
		// Determine it
		$GLOBALS[__FUNCTION__] = (getConfig('url_blacklist') == 'Y');
	} // END - if

	// Return cache
	return $GLOBALS[__FUNCTION__];
}

// Wrapper to check if email_blacklist is enabled
function isEmailBlacklistEnabled () {
	// Is there cache?
	if (!isset($GLOBALS[__FUNCTION__])) {
		// Determine it
		$GLOBALS[__FUNCTION__] = (getConfig('email_blacklist') == 'Y');
	} // END - if

	// Return cache
	return $GLOBALS[__FUNCTION__];
}

// [EOF]
?>