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<?php |
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/************************************************************* |
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* |
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* helper.class.php |
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* |
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* Various utility functions |
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* |
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* |
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* Copyright (c) 2011 Prelovac Media |
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* www.prelovac.com |
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**************************************************************/ |
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|
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class MMB_Helper |
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{ |
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/** |
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* A helper function to log data |
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* |
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* @param mixed $mixed |
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*/ |
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function _log($mixed) |
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{ |
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if (is_array($mixed)) { |
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$mixed = print_r($mixed, 1); |
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} else if (is_object($mixed)) { |
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ob_start(); |
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var_dump($mixed); |
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$mixed = ob_get_clean(); |
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} |
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|
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$handle = fopen(dirname(__FILE__) . '/log', 'a'); |
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fwrite($handle, $mixed . PHP_EOL); |
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fclose($handle); |
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} |
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|
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/** |
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* Strips WP disallowed HTML and PHP tags from a string |
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* |
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* @param mixed $str |
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* @return string |
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*/ |
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function _strip_tags($str) |
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{ |
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return strip_tags($str, '<address><a><abbr><acronym><area><b><big><blockquote><br><caption><cite><class><code><col><del><dd><div><dl><dt><em><font><h1><h2><h3><h4><h5><h6><hr><i><img><ins><kbd><li><map><ol><p><pre><q><s><span><strike><strong><sub><sup><table><tbody><td><tfoot><tr><tt><ul><var>'); |
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} |
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|
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/** |
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* Filters a WordPress content (being comments, pages, posts etc) |
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* |
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* @param mixed $str |
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* @return string |
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*/ |
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function _filter_content($str) |
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{ |
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return nl2br($this->_strip_tags($str)); |
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} |
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|
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|
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|
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function _escape(&$array) |
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{ |
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global $wpdb; |
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|
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if (!is_array($array)) { |
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return ($wpdb->escape($array)); |
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} else { |
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foreach ((array) $array as $k => $v) { |
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if (is_array($v)) { |
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$this->_escape($array[$k]); |
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} else if (is_object($v)) { |
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//skip |
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} else { |
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$array[$k] = $wpdb->escape($v); |
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} |
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} |
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} |
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} |
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|
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function _base64_encode($str) |
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{ |
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// a plus sign can break the encoded string |
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// if sent via URL |
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return str_replace('+', '|', base64_encode($str)); |
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} |
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|
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function _base64_decode($str) |
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{ |
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return base64_decode(str_replace('|', '+', $str)); |
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} |
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|
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function _print_r($arr) |
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{ |
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if (is_string($arr)) |
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$arr = array( |
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$arr |
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); |
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echo '<pre>'; |
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print_r($arr); |
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echo '</pre>'; |
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} |
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|
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/** |
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* Initializes the file system |
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* |
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*/ |
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function _init_filesystem() |
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{ |
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global $wp_filesystem; |
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|
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if (!$wp_filesystem || !is_object($wp_filesystem)) { |
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WP_Filesystem(); |
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} |
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|
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if (!is_object($wp_filesystem)) |
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return FALSE; |
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|
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return TRUE; |
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} |
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|
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/** |
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* Gets transient based on WP version |
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* |
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* @global string $wp_version |
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* @param string $option_name |
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* @return mixed |
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*/ |
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function mmb_get_transient($option_name) |
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{ |
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if (trim($option_name) == '') { |
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return FALSE; |
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} |
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|
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global $wp_version, $_wp_using_ext_object_cache; |
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|
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if (version_compare($wp_version, '2.8.0', '<')){ |
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return get_option($option_name); |
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} |
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else if (version_compare($wp_version, '3.0.0', '<')){ |
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if(get_transient($option_name)) |
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return get_transient($option_name); |
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else |
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return get_option('_transient_'.$option_name); |
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} |
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else { |
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if(get_site_transient($option_name)) |
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return get_site_transient($option_name); |
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else |
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return get_option('_site_transient_'.$option_name); |
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} |
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} |
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|
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function mmb_delete_transient($option_name) |
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{ |
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if (trim($option_name) == '') { |
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return FALSE; |
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} |
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|
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global $wp_version; |
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|
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if (version_compare($wp_version, '2.8.0', '<')){ |
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delete_option($option_name); |
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} |
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else if (version_compare($wp_version, '3.0.0', '<')){ |
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if(delete_transient($option_name)) |
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delete_transient($option_name); |
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else |
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delete_option('_transient_'.$option_name); |
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} |
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else { |
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if(delete_site_transient($option_name)) |
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delete_site_transient($option_name); |
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else |
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delete_option('_site_transient_'.$option_name); |
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} |
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} |
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|
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function mmb_null_op_buffer($buffer) |
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{ |
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//do nothing |
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if (!ob_get_level()) |
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ob_start(array( |
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$this, |
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'mmb_null_op_buffer' |
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)); |
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return ''; |
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} |
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|
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function _deleteTempDir($directory) |
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{ |
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if (substr($directory, -1) == "/") { |
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$directory = substr($directory, 0, -1); |
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} |
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// $this->_log($directory); |
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if (!file_exists($directory) || !is_dir($directory)) { |
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return false; |
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} elseif (!is_readable($directory)) { |
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return false; |
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} else { |
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$directoryHandle = opendir($directory); |
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|
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while ($contents = readdir($directoryHandle)) { |
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if ($contents != '.' && $contents != '..') { |
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$path = $directory . "/" . $contents; |
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|
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if (is_dir($path)) { |
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$this->_deleteTempDir($path); |
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} else { |
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unlink($path); |
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} |
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} |
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} |
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closedir($directoryHandle); |
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rmdir($directory); |
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return true; |
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} |
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} |
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|
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function _is_ftp_writable_mmb() |
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{ |
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if (defined('FTP_PASS')) { |
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return true; |
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} else |
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return false; |
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} |
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|
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function _set_worker_message_id($message_id = false) |
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{ |
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if ($message_id) { |
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add_option('_action_message_id', $message_id) or update_option('_action_message_id', $message_id); |
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return $message_id; |
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} |
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return false; |
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} |
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|
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function _get_worker_message_id() |
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{ |
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return (int) get_option('_action_message_id'); |
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} |
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|
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function _set_master_public_key($public_key = false) |
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{ |
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if ($public_key && !get_option('_worker_public_key')) { |
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add_option('_worker_public_key', base64_encode($public_key)); |
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return true; |
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} |
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return false; |
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} |
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|
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function _get_master_public_key() |
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{ |
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if (!get_option('_worker_public_key')) |
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return false; |
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return base64_decode(get_option('_worker_public_key')); |
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} |
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|
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function _get_master_referer(){ |
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if (!get_option('_master_referer')) |
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return false; |
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return base64_decode(get_option('_master_referer')); |
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} |
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|
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function _get_random_signature(){ |
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if (!get_option('_worker_nossl_key')) |
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return false; |
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return base64_decode(get_option('_worker_nossl_key')); |
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} |
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|
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function _set_random_signature($random_key = false){ |
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if ($random_key && !get_option('_worker_nossl_key')){ |
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add_option('_worker_nossl_key', base64_encode($random_key)); |
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return true; |
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} |
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return false; |
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} |
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|
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|
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function _authenticate_message($data = false, $signature = false, $message_id = false) |
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{ |
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if (!$data && !$signature) { |
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return array( |
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'error' => 'Authentication failed.' |
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); |
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} |
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|
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$current_message = $this->_get_worker_message_id(); |
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|
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if ((int) $current_message > (int) $message_id) |
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return array( |
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'error' => 'Invalid message recieved. You can try to reinstall worker plugin and re-add the site to your account.' |
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); |
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|
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$pl_key = $this->_get_master_public_key(); |
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if (!$pl_key) { |
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return array( |
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'error' => 'Authentication failed (public key). You can try to reinstall worker plugin and re-add the site to your account.' |
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); |
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} |
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|
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if( function_exists( 'openssl_verify' ) && !$this->_get_random_signature()){ |
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$verify = openssl_verify($data, $signature, $pl_key); |
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if ($verify == 1) { |
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$message_id = $this->_set_worker_message_id($message_id); |
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return true; |
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} else if ($verify == 0) { |
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return array( |
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'error' => 'Invalid message signature. You can try to reinstall worker plugin and re-add the site to your account.' |
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); |
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} else { |
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return array( |
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'error' => 'Command not successful! Please try again.' |
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); |
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} |
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} else if ($this->_get_random_signature()) { |
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if(md5($data.$this->_get_random_signature()) == $signature ){ |
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$message_id = $this->_set_worker_message_id($message_id); |
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return true; |
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} |
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return array( |
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'error' => 'Invalid message signature. You can try to reinstall the worker plugin and then re-add the site to your dashboard.' |
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); |
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} |
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// no rand key - deleted in get_stat maybe |
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else return array( |
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'error' => 'Invalid message signature, try reinstalling worker plugin and re-adding the site to your dashboard.' |
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); |
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} |
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|
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function _check_if_user_exists($username = false) |
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{ |
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if ($username) { |
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require_once(ABSPATH . WPINC . '/registration.php'); |
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include_once(ABSPATH . 'wp-includes/pluggable.php'); |
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|
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if (username_exists($username) == null) { |
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return false; |
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} |
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$user = get_userdatabylogin($username); |
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if ($user->wp_user_level == 10 || isset($user->wp_capabilities['administrator'])) { |
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define('MMB_USER_CAPABILITIES', $user->wp_user_level); |
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return true; |
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} |
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return false; |
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} |
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return false; |
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} |
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|
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function refresh_updates() |
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{ |
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if (rand(1, 3) == '2') { |
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require_once(ABSPATH . WPINC . '/update.php'); |
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wp_update_plugins(); |
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wp_update_themes(); |
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wp_version_check(); |
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} |
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} |
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|
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function remove_http($url = '') |
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{ |
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if ($url == 'http://' OR $url == 'https://') { |
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return $url; |
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} |
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return preg_replace('/^(http|https)\:\/\/(www.)?/i', '', $url); |
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|
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} |
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|
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function mmb_get_error($error_object){ |
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if(!is_wp_error($error_object)){ |
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return $error_object != '' ? $error_object : ' error occured.'; |
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} |
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else { |
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$errors = array(); |
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foreach($error_object->error_data as $error_key => $error_string){ |
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$errors[] = str_replace('_', ' ', ucfirst($error_key)).' - '.$error_string; |
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} |
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return implode('<br />', $errors); |
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} |
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} |
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|
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|
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} |
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?> |
