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<?php |
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if (!defined('ABSPATH') && !defined('MCDATAPATH') && !defined('PHP_ERR_MONIT_PATH')) exit; |
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|
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if (!class_exists('WPRHelper')) : |
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class WPRHelper { |
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public static function safePregMatch($pattern, $subject, &$matches = null, $flags = 0, $offset = 0) { |
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if (!is_string($pattern) || !is_string($subject)) { |
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return false; |
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} |
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return preg_match($pattern, $subject, $matches, $flags, $offset); |
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} |
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|
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# XNOTE - The below function assumes valid input |
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# $array should be an array and $keys should be an array of string, or integer data |
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public static function filterArray($array, $keys) { |
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$filteredArray = array(); |
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foreach ($keys as $key) { |
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if (array_key_exists($key, $array)) { |
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$filteredArray[$key] = $array[$key]; |
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} |
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} |
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return $filteredArray; |
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} |
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|
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# XNOTE - The below function assumes valid input |
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# $array should be an array and $keys should be an array of string, or integer data |
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public static function digArray($array, $keys) { |
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if (empty($keys)) { |
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return null; |
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} |
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$curr_array = $array; |
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foreach ($keys as $key) { |
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if (is_array($curr_array) && array_key_exists($key, $curr_array)) { |
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$curr_array = $curr_array[$key]; |
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} else { |
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return null; |
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} |
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} |
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return $curr_array; |
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} |
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|
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public static function arrayKeyFirst($array) { |
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if (!function_exists('array_key_first')) { |
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foreach ($array as $key => $value) { |
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return $key; |
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} |
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return null; |
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} |
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|
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return array_key_first($array); |
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} |
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|
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public static function safePregReplace($replace_regex, $replace_string, $element) { |
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if (!is_string($replace_regex) || !is_string($replace_string) || !is_string($element)) { |
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return $element; |
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} |
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$updated_element = preg_replace($replace_regex, $replace_string, $element); |
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if ($updated_element === null && preg_last_error() !== PREG_NO_ERROR) { |
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return $element; |
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} |
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return $updated_element; |
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} |
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|
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public static function safeStrReplace($search, $replace, $subject) { |
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if (!is_string($search) || !is_string($replace) || !is_string($subject)) { |
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return $subject; |
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} |
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$updated_subject = str_replace($search, $replace, $subject); |
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if ($updated_subject === null) { |
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return $subject; |
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} |
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return $updated_subject; |
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} |
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|
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public static function preInitWPHook($hook_name, $function_name, $priority, $accepted_args) { |
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global $wp_filter; |
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|
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// Check if $wp_filter is not initialized or not an array |
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if (!isset($wp_filter) || !is_array($wp_filter)) { |
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$wp_filter = array(); |
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} |
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|
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// Check if the hook exists in $wp_filter |
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if (!isset($wp_filter[$hook_name])) { |
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$wp_filter[$hook_name] = array(); |
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} |
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|
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// Check if the priority exists for the hook |
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if (!isset($wp_filter[$hook_name][$priority])) { |
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$wp_filter[$hook_name][$priority] = array(); |
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} |
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|
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// Add the filter function information to the $wp_filter array |
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$wp_filter[$hook_name][$priority][] = array( |
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'function' => $function_name, |
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'accepted_args' => $accepted_args, |
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); |
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} |
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|
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public static function removePatternFromWpConfig($pattern) { |
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if (!defined('ABSPATH')) { |
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return; |
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} |
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|
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$wp_conf_paths = array( |
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rtrim(ABSPATH, DIRECTORY_SEPARATOR) . "/wp-config.php", |
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rtrim(ABSPATH, DIRECTORY_SEPARATOR) . "../wp-config.php" |
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); |
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|
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if (file_exists($wp_conf_paths[0])) { |
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$fname = $wp_conf_paths[0]; |
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} elseif (file_exists($wp_conf_paths[1])) { |
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$fname = $wp_conf_paths[1]; |
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} else { |
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return; |
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} |
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|
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self::fileRemovePattern($fname, $pattern); |
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} |
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|
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public static function fileRemovePattern($fname, $pattern, $is_regex = false) { |
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if (!is_string($fname) || !is_string($pattern)) { |
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return; |
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} |
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if (!file_exists($fname)) return; |
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|
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$content = file_get_contents($fname); |
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if ($content !== false) { |
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if ($is_regex !== false) { |
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$modified_content = preg_replace($pattern, "", $content); |
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} else { |
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$modified_content = str_replace($pattern, "", $content); |
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} |
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|
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if (empty($modified_content)) { |
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return; |
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} |
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|
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if ($content !== $modified_content) { |
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file_put_contents($fname, $modified_content); |
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} |
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} |
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} |
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|
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public static function opensslEncrypt($plain_text, $cipher_algo, $encryption_key, $iv = null) { |
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if (!function_exists('openssl_encrypt') || !function_exists('openssl_get_cipher_methods') || |
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!function_exists('openssl_random_pseudo_bytes') || !function_exists('openssl_cipher_iv_length')) { |
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return array(false, "OpenSSL extension not found."); |
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} |
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|
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if (empty($plain_text) || !is_string($plain_text) || |
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empty($encryption_key) || !is_string($encryption_key)) { |
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return array(false, "Plain text or encryption key is not a valid string."); |
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} |
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|
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if (!in_array($cipher_algo, openssl_get_cipher_methods(), true)) { |
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return array(false, "Invalid cipher algorithm - " . $cipher_algo); |
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} |
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|
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if ($iv === null) { |
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$iv_length = openssl_cipher_iv_length($cipher_algo); |
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if ($iv_length === false) { |
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return array(false, "IV length not found."); |
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} |
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$iv = openssl_random_pseudo_bytes($iv_length); |
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if ($iv === false) { |
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return array(false, "IV generation failed."); |
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} |
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} |
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|
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if (strlen($iv) !== $iv_length) { |
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return array(false, "Invalid IV length. Expected length is " . $iv_length . " bytes."); |
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} |
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|
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$encrypted_data = openssl_encrypt($plain_text, $cipher_algo, $encryption_key, OPENSSL_RAW_DATA, $iv); |
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if ($encrypted_data === false) { |
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return array(false, "Encryption failed."); |
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} |
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|
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return array(true, ($iv . $encrypted_data)); |
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} |
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|
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public static function opensslDecrypt($data, $cipher_algo, $encryption_key) { |
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if (!function_exists('openssl_decrypt') || !function_exists('openssl_get_cipher_methods') || |
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!function_exists('openssl_cipher_iv_length')) { |
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return array(false, "OpenSSL extension not found."); |
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} |
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|
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if (empty($data) || !is_string($data) || empty($encryption_key) || !is_string($encryption_key)) { |
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return array(false, "Encrypted secret or encryption key is not a valid string."); |
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} |
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|
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if (!in_array($cipher_algo, openssl_get_cipher_methods(), true)) { |
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return array(false, "Invalid cipher algorithm - " . $cipher_algo); |
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} |
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|
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$iv_length = openssl_cipher_iv_length($cipher_algo); |
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if ($iv_length === false) { |
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return array(false, "IV length not found."); |
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} |
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|
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if (strlen($data) <= $iv_length) { |
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return array(false, "Data length is insufficient to contain IV."); |
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} |
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|
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$iv = substr($data, 0, $iv_length); |
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$encrypted_data = substr($data, $iv_length); |
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|
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if ($iv === false || $encrypted_data === false) { |
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return array(false, "IV or encrypted data not found."); |
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} |
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|
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$decrypted_data = openssl_decrypt($encrypted_data, $cipher_algo, $encryption_key, OPENSSL_RAW_DATA, $iv); |
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|
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if ($decrypted_data === false) { |
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return array(false, "Decryption failed."); |
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} |
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|
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return array(true, $decrypted_data); |
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} |
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} |
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endif; |
