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<?php if (! defined('ABSPATH')) exit; // Exit if accessed directly |
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class HC3_Post |
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{ |
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protected $_postPrefix = 'hc-'; |
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|
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public function __construct() |
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{ |
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$this->_sanitize(); |
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} |
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|
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public function get( $k = NULL ) |
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{ |
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if( ! empty($_POST) ){ |
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$nonce = isset( $_REQUEST['hc_nonce'] ) ? $_REQUEST['hc_nonce'] : ''; |
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if( ! wp_verify_nonce( $nonce, 'shiftcontroller' ) ){ |
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die( 'Security check failed' ); |
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} |
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} |
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|
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$return = array(); |
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|
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if( ! empty($_POST) ){ |
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foreach( array_keys($_POST) as $key ){ |
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if( substr($key, 0, strlen($this->_postPrefix)) != $this->_postPrefix ){ |
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continue; |
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} |
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$my_key = substr($key, strlen($this->_postPrefix)); |
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$return[$my_key] = $this->_fetch_from_array($_POST, $key); |
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} |
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} |
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|
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if( NULL !== $k ){ |
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$return = array_key_exists($k, $return) ? $return[$k] : NULL; |
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} |
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|
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return $return; |
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} |
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|
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protected function _fetch_from_array($array, $index = '') |
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{ |
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if ( ! isset($array[$index])){ |
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return FALSE; |
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} |
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return $array[$index]; |
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} |
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|
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protected function _sanitize() |
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{ |
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if (is_array($_POST) AND count($_POST) > 0){ |
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foreach ($_POST as $key => $val){ |
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if( substr($key, 0, strlen($this->_postPrefix)) !== $this->_postPrefix ){ |
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continue; |
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} |
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$_POST[$this->_cleanInputKeys($key)] = $this->_cleanInputData($val); |
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} |
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} |
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} |
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|
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protected function _cleanInputKeys( $str ) |
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{ |
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if ( ! preg_match("/^[a-z0-9:_\/\-\~]+$/i", $str)){ |
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exit('Disallowed Key Characters on: ' . '"' . $str . '"' . '<br>'); |
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} |
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return $str; |
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} |
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|
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protected function _cleanInputData( $str ) |
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{ |
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if( is_array($str) ){ |
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$new_array = array(); |
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foreach ($str as $key => $val){ |
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$new_array[$this->_cleanInputKeys($key)] = $this->_cleanInputData($val); |
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} |
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return $new_array; |
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} |
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|
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/* We strip slashes if magic quotes is on to keep things consistent |
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NOTE: In PHP 5.4 get_magic_quotes_gpc() will always return 0 and |
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it will probably not exist in future versions at all. |
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*/ |
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$need_strip = FALSE; |
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if( version_compare(PHP_VERSION, '5.4', '<') && get_magic_quotes_gpc() ){ |
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$need_strip = TRUE; |
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} |
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elseif( defined('WPINC') ){ |
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$need_strip = TRUE; |
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} |
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|
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if( $need_strip ){ |
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$str = stripslashes($str); |
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} |
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|
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// Remove control characters |
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$str = HC3_Functions::removeInvisibleCharacters($str); |
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|
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// Standardize newlines |
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if (strpos($str, "\r") !== FALSE){ |
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$str = str_replace(array("\r\n", "\r", "\r\n\n"), PHP_EOL, $str); |
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} |
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|
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return $str; |
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} |
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} |
