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Diffstat (limited to 'system/libraries/Validation.php')
| -rw-r--r-- | system/libraries/Validation.php | 875 |
1 files changed, 0 insertions, 875 deletions
diff --git a/system/libraries/Validation.php b/system/libraries/Validation.php deleted file mode 100644 index a42b7760b..000000000 --- a/system/libraries/Validation.php +++ /dev/null @@ -1,875 +0,0 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); -/** - * CodeIgniter - * - * An open source application development framework for PHP 4.3.2 or newer - * - * @package CodeIgniter - * @author ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2010, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html - * @link http://codeigniter.com - * @since Version 1.0 - * @filesource - */ - -// ------------------------------------------------------------------------ - -/** - * Validation Class - * - * @package CodeIgniter - * @subpackage Libraries - * @category Validation - * @author ExpressionEngine Dev Team - * @link http://codeigniter.com/user_guide/libraries/validation.html - */ -class CI_Validation { - - var $CI; - var $error_string = ''; - var $_error_array = array(); - var $_rules = array(); - var $_fields = array(); - var $_error_messages = array(); - var $_current_field = ''; - var $_safe_form_data = FALSE; - var $_error_prefix = '<p>'; - var $_error_suffix = '</p>'; - - - - /** - * Constructor - * - */ - function CI_Validation() - { - $this->CI =& get_instance(); - - if (function_exists('mb_internal_encoding')) - { - mb_internal_encoding($this->CI->config->item('charset')); - } - - log_message('debug', "Validation Class Initialized"); - } - - // -------------------------------------------------------------------- - - /** - * Set Fields - * - * This function takes an array of field names as input - * and generates class variables with the same name, which will - * either be blank or contain the $_POST value corresponding to it - * - * @access public - * @param string - * @param string - * @return void - */ - function set_fields($data = '', $field = '') - { - if ($data == '') - { - if (count($this->_fields) == 0) - { - return FALSE; - } - } - else - { - if ( ! is_array($data)) - { - $data = array($data => $field); - } - - if (count($data) > 0) - { - $this->_fields = $data; - } - } - - foreach($this->_fields as $key => $val) - { - $this->$key = ( ! isset($_POST[$key])) ? '' : $this->prep_for_form($_POST[$key]); - - $error = $key.'_error'; - if ( ! isset($this->$error)) - { - $this->$error = ''; - } - } - } - - // -------------------------------------------------------------------- - - /** - * Set Rules - * - * This function takes an array of field names and validation - * rules as input ad simply stores is for use later. - * - * @access public - * @param mixed - * @param string - * @return void - */ - function set_rules($data, $rules = '') - { - if ( ! is_array($data)) - { - if ($rules == '') - return; - - $data = array($data => $rules); - } - - foreach ($data as $key => $val) - { - $this->_rules[$key] = $val; - } - } - - // -------------------------------------------------------------------- - - /** - * Set Error Message - * - * Lets users set their own error messages on the fly. Note: The key - * name has to match the function name that it corresponds to. - * - * @access public - * @param string - * @param string - * @return string - */ - function set_message($lang, $val = '') - { - if ( ! is_array($lang)) - { - $lang = array($lang => $val); - } - - $this->_error_messages = array_merge($this->_error_messages, $lang); - } - - // -------------------------------------------------------------------- - - /** - * Set The Error Delimiter - * - * Permits a prefix/suffix to be added to each error message - * - * @access public - * @param string - * @param string - * @return void - */ - function set_error_delimiters($prefix = '<p>', $suffix = '</p>') - { - $this->_error_prefix = $prefix; - $this->_error_suffix = $suffix; - } - - // -------------------------------------------------------------------- - - /** - * Run the Validator - * - * This function does all the work. - * - * @access public - * @return bool - */ - function run() - { - // Do we even have any data to process? Mm? - if (count($_POST) == 0 OR count($this->_rules) == 0) - { - return FALSE; - } - - // Load the language file containing error messages - $this->CI->lang->load('validation'); - - // Cycle through the rules and test for errors - foreach ($this->_rules as $field => $rules) - { - //Explode out the rules! - $ex = explode('|', $rules); - - // Is the field required? If not, if the field is blank we'll move on to the next test - if ( ! in_array('required', $ex, TRUE)) - { - if ( ! isset($_POST[$field]) OR $_POST[$field] == '') - { - continue; - } - } - - /* - * Are we dealing with an "isset" rule? - * - * Before going further, we'll see if one of the rules - * is to check whether the item is set (typically this - * applies only to checkboxes). If so, we'll - * test for it here since there's not reason to go - * further - */ - if ( ! isset($_POST[$field])) - { - if (in_array('isset', $ex, TRUE) OR in_array('required', $ex)) - { - if ( ! isset($this->_error_messages['isset'])) - { - if (FALSE === ($line = $this->CI->lang->line('isset'))) - { - $line = 'The field was not set'; - } - } - else - { - $line = $this->_error_messages['isset']; - } - - // Build the error message - $mfield = ( ! isset($this->_fields[$field])) ? $field : $this->_fields[$field]; - $message = sprintf($line, $mfield); - - // Set the error variable. Example: $this->username_error - $error = $field.'_error'; - $this->$error = $this->_error_prefix.$message.$this->_error_suffix; - $this->_error_array[] = $message; - } - - continue; - } - - /* - * Set the current field - * - * The various prepping functions need to know the - * current field name so they can do this: - * - * $_POST[$this->_current_field] == 'bla bla'; - */ - $this->_current_field = $field; - - // Cycle through the rules! - foreach ($ex As $rule) - { - // Is the rule a callback? - $callback = FALSE; - if (substr($rule, 0, 9) == 'callback_') - { - $rule = substr($rule, 9); - $callback = TRUE; - } - - // Strip the parameter (if exists) from the rule - // Rules can contain a parameter: max_length[5] - $param = FALSE; - if (preg_match("/(.*?)\[(.*?)\]/", $rule, $match)) - { - $rule = $match[1]; - $param = $match[2]; - } - - // Call the function that corresponds to the rule - if ($callback === TRUE) - { - if ( ! method_exists($this->CI, $rule)) - { - continue; - } - - $result = $this->CI->$rule($_POST[$field], $param); - - // If the field isn't required and we just processed a callback we'll move on... - if ( ! in_array('required', $ex, TRUE) AND $result !== FALSE) - { - continue 2; - } - - } - else - { - if ( ! method_exists($this, $rule)) - { - /* - * Run the native PHP function if called for - * - * If our own wrapper function doesn't exist we see - * if a native PHP function does. Users can use - * any native PHP function call that has one param. - */ - if (function_exists($rule)) - { - $_POST[$field] = $rule($_POST[$field]); - $this->$field = $_POST[$field]; - } - - continue; - } - - $result = $this->$rule($_POST[$field], $param); - } - - // Did the rule test negatively? If so, grab the error. - if ($result === FALSE) - { - if ( ! isset($this->_error_messages[$rule])) - { - if (FALSE === ($line = $this->CI->lang->line($rule))) - { - $line = 'Unable to access an error message corresponding to your field name.'; - } - } - else - { - $line = $this->_error_messages[$rule]; - } - - // Build the error message - $mfield = ( ! isset($this->_fields[$field])) ? $field : $this->_fields[$field]; - $mparam = ( ! isset($this->_fields[$param])) ? $param : $this->_fields[$param]; - $message = sprintf($line, $mfield, $mparam); - - // Set the error variable. Example: $this->username_error - $error = $field.'_error'; - $this->$error = $this->_error_prefix.$message.$this->_error_suffix; - - // Add the error to the error array - $this->_error_array[] = $message; - continue 2; - } - } - - } - - $total_errors = count($this->_error_array); - - /* - * Recompile the class variables - * - * If any prepping functions were called the $_POST data - * might now be different then the corresponding class - * variables so we'll set them anew. - */ - if ($total_errors > 0) - { - $this->_safe_form_data = TRUE; - } - - $this->set_fields(); - - // Did we end up with any errors? - if ($total_errors == 0) - { - return TRUE; - } - - // Generate the error string - foreach ($this->_error_array as $val) - { - $this->error_string .= $this->_error_prefix.$val.$this->_error_suffix."\n"; - } - - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Required - * - * @access public - * @param string - * @return bool - */ - function required($str) - { - if ( ! is_array($str)) - { - return (trim($str) == '') ? FALSE : TRUE; - } - else - { - return ( ! empty($str)); - } - } - - // -------------------------------------------------------------------- - - /** - * Match one field to another - * - * @access public - * @param string - * @param field - * @return bool - */ - function matches($str, $field) - { - if ( ! isset($_POST[$field])) - { - return FALSE; - } - - return ($str !== $_POST[$field]) ? FALSE : TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Minimum Length - * - * @access public - * @param string - * @param value - * @return bool - */ - function min_length($str, $val) - { - if (preg_match("/[^0-9]/", $val)) - { - return FALSE; - } - - if (function_exists('mb_strlen')) - { - return (mb_strlen($str) < $val) ? FALSE : TRUE; - } - - return (strlen($str) < $val) ? FALSE : TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Max Length - * - * @access public - * @param string - * @param value - * @return bool - */ - function max_length($str, $val) - { - if (preg_match("/[^0-9]/", $val)) - { - return FALSE; - } - - if (function_exists('mb_strlen')) - { - return (mb_strlen($str) > $val) ? FALSE : TRUE; - } - - return (strlen($str) > $val) ? FALSE : TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Exact Length - * - * @access public - * @param string - * @param value - * @return bool - */ - function exact_length($str, $val) - { - if (preg_match("/[^0-9]/", $val)) - { - return FALSE; - } - - if (function_exists('mb_strlen')) - { - return (mb_strlen($str) != $val) ? FALSE : TRUE; - } - - return (strlen($str) != $val) ? FALSE : TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Valid Email - * - * @access public - * @param string - * @return bool - */ - function valid_email($str) - { - return ( ! preg_match("/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $str)) ? FALSE : TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Valid Emails - * - * @access public - * @param string - * @return bool - */ - function valid_emails($str) - { - if (strpos($str, ',') === FALSE) - { - return $this->valid_email(trim($str)); - } - - foreach(explode(',', $str) as $email) - { - if (trim($email) != '' && $this->valid_email(trim($email)) === FALSE) - { - return FALSE; - } - } - - return TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Validate IP Address - * - * @access public - * @param string - * @return string - */ - function valid_ip($ip) - { - return $this->CI->input->valid_ip($ip); - } - - // -------------------------------------------------------------------- - - /** - * Alpha - * - * @access public - * @param string - * @return bool - */ - function alpha($str) - { - return ( ! preg_match("/^([a-z])+$/i", $str)) ? FALSE : TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Alpha-numeric - * - * @access public - * @param string - * @return bool - */ - function alpha_numeric($str) - { - return ( ! preg_match("/^([a-z0-9])+$/i", $str)) ? FALSE : TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Alpha-numeric with underscores and dashes - * - * @access public - * @param string - * @return bool - */ - function alpha_dash($str) - { - return ( ! preg_match("/^([-a-z0-9_-])+$/i", $str)) ? FALSE : TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Numeric - * - * @access public - * @param string - * @return bool - */ - function numeric($str) - { - return (bool)preg_match( '/^[\-+]?[0-9]*\.?[0-9]+$/', $str); - - } - - // -------------------------------------------------------------------- - - /** - * Is Numeric - * - * @access public - * @param string - * @return bool - */ - function is_numeric($str) - { - return ( ! is_numeric($str)) ? FALSE : TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Integer - * - * @access public - * @param string - * @return bool - */ - function integer($str) - { - return (bool)preg_match( '/^[\-+]?[0-9]+$/', $str); - } - - // -------------------------------------------------------------------- - - /** - * Is a Natural number (0,1,2,3, etc.) - * - * @access public - * @param string - * @return bool - */ - function is_natural($str) - { - return (bool)preg_match( '/^[0-9]+$/', $str); - } - - // -------------------------------------------------------------------- - - /** - * Is a Natural number, but not a zero (1,2,3, etc.) - * - * @access public - * @param string - * @return bool - */ - function is_natural_no_zero($str) - { - if ( ! preg_match( '/^[0-9]+$/', $str)) - { - return FALSE; - } - - if ($str == 0) - { - return FALSE; - } - - return TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Valid Base64 - * - * Tests a string for characters outside of the Base64 alphabet - * as defined by RFC 2045 http://www.faqs.org/rfcs/rfc2045 - * - * @access public - * @param string - * @return bool - */ - function valid_base64($str) - { - return (bool) ! preg_match('/[^a-zA-Z0-9\/\+=]/', $str); - } - - // -------------------------------------------------------------------- - - /** - * Set Select - * - * Enables pull-down lists to be set to the value the user - * selected in the event of an error - * - * @access public - * @param string - * @param string - * @return string - */ - function set_select($field = '', $value = '') - { - if ($field == '' OR $value == '' OR ! isset($_POST[$field])) - { - return ''; - } - - if ($_POST[$field] == $value) - { - return ' selected="selected"'; - } - } - - // -------------------------------------------------------------------- - - /** - * Set Radio - * - * Enables radio buttons to be set to the value the user - * selected in the event of an error - * - * @access public - * @param string - * @param string - * @return string - */ - function set_radio($field = '', $value = '') - { - if ($field == '' OR $value == '' OR ! isset($_POST[$field])) - { - return ''; - } - - if ($_POST[$field] == $value) - { - return ' checked="checked"'; - } - } - - // -------------------------------------------------------------------- - - /** - * Set Checkbox - * - * Enables checkboxes to be set to the value the user - * selected in the event of an error - * - * @access public - * @param string - * @param string - * @return string - */ - function set_checkbox($field = '', $value = '') - { - if ($field == '' OR $value == '' OR ! isset($_POST[$field])) - { - return ''; - } - - if ($_POST[$field] == $value) - { - return ' checked="checked"'; - } - } - - // -------------------------------------------------------------------- - - /** - * Prep data for form - * - * This function allows HTML to be safely shown in a form. - * Special characters are converted. - * - * @access public - * @param string - * @return string - */ - function prep_for_form($data = '') - { - if (is_array($data)) - { - foreach ($data as $key => $val) - { - $data[$key] = $this->prep_for_form($val); - } - - return $data; - } - - if ($this->_safe_form_data == FALSE OR $data == '') - { - return $data; - } - - return str_replace(array("'", '"', '<', '>'), array("'", """, '<', '>'), stripslashes($data)); - } - - // -------------------------------------------------------------------- - - /** - * Prep URL - * - * @access public - * @param string - * @return string - */ - function prep_url($str = '') - { - if ($str == 'http://' OR $str == '') - { - $_POST[$this->_current_field] = ''; - return; - } - - if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://') - { - $str = 'http://'.$str; - } - - $_POST[$this->_current_field] = $str; - } - - // -------------------------------------------------------------------- - - /** - * Strip Image Tags - * - * @access public - * @param string - * @return string - */ - function strip_image_tags($str) - { - $_POST[$this->_current_field] = $this->CI->input->strip_image_tags($str); - } - - // -------------------------------------------------------------------- - - /** - * XSS Clean - * - * @access public - * @param string - * @return string - */ - function xss_clean($str) - { - $_POST[$this->_current_field] = $this->CI->input->xss_clean($str); - } - - // -------------------------------------------------------------------- - - /** - * Convert PHP tags to entities - * - * @access public - * @param string - * @return string - */ - function encode_php_tags($str) - { - $_POST[$this->_current_field] = str_replace(array('<?php', '<?PHP', '<?', '?>'), array('<?php', '<?PHP', '<?', '?>'), $str); - } - -} -// END Validation Class - -/* End of file Validation.php */ -/* Location: ./system/libraries/Validation.php */
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