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