From ec1b70f47e2161cf98bf0cad3d57368d2ca762dc Mon Sep 17 00:00:00 2001
From: Rick Ellis
', $suffix = '
') + { + $this->_error_prefix = $prefix; + $this->_error_suffix = $suffix; + } + + // -------------------------------------------------------------------- + + /** + * Get Error Message + * + * Gets the error message associated with a particular field + * + * @access public + * @param string the field name + * @return void + */ + function error($field = '', $prefix = '', $suffix = '') + { + if ( ! isset($this->_field_data[$field]['error'])) + { + return ''; + } + + if ($prefix == '') + { + $prefix = $this->_error_prefix; + } + + if ($suffix == '') + { + $suffix = $this->_error_suffix; + } + + return $prefix.$this->_field_data[$field]['error'].$suffix; + } + + // -------------------------------------------------------------------- + + /** + * Error String + * + * Returns the error messages as a string, wrapped in the error delimiters + * + * @access public + * @param string + * @param string + * @return str + */ + function error_string($prefix = '', $suffix = '') + { + // No errrors, validation passes! + if (count($this->_error_array) === 0) + { + return ''; + } + + if ($prefix == '') + { + $prefix = $this->_error_prefix; + } + + if ($suffix == '') + { + $suffix = $this->_error_suffix; + } + + // Generate the error string + $str = ''; + foreach ($this->_error_array as $val) + { + $str .= $prefix.$val.$suffix."\n"; + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Run the Validator + * + * This function does all the work. + * + * @access public + * @return bool + */ + function run($group = '') + { + // Do we even have any data to process? Mm? + if (count($_POST) == 0) + { + return FALSE; + } + + // Does the _field_data array containing the validation rules exist? + // If not, we look to see if they were assigned via a config file + if (count($this->_field_data) == 0) + { + // No validation rules? We're done... + if (count($this->_config_rules) == 0) + { + return FALSE; + } + + // Is there a validation rule for the particular URI being accessed? + $uri = ($group == '') ? trim($this->CI->uri->ruri_string(), '/') : $group; + + if ($uri != '' AND isset($this->_config_rules[$uri])) + { + $this->set_rules($this->_config_rules[$uri]); + } + else + { + $this->set_rules($this->_config_rules); + } + + // We're we able to set the rules correctly? + if (count($this->_field_data) == 0) + { + log_message('debug', "Unable to find validation rules"); + return FALSE; + } + } + + // Load the language file containing error messages + $this->CI->lang->load('form_validation'); + + // Cycle through the rules for each field, match the + // corresponding $_POST item and test for errors + foreach ($this->_field_data as $field => $row) + { + // Fetch the data from the corresponding $_POST array and cache it in the _field_data array. + // Depending on whether the field name is an array or a string will determine where we get it from. + + if ($row['is_array'] == TRUE) + { + $this->_field_data[$field]['postdata'] = $this->_reduce_array($_POST, $row['keys']); + } + else + { + if (isset($_POST[$field])) + { + $this->_field_data[$field]['postdata'] = $_POST[$field]; + } + } + + $this->_execute($row, explode('|', $row['rules']), $this->_field_data[$field]['postdata']); + } + + // Did we end up with any errors? + $total_errors = count($this->_error_array); + + if ($total_errors > 0) + { + $this->_safe_form_data = TRUE; + } + + // Now we need to re-set the POST data with the new, processed data + $this->_reset_post_array(); + + // No errors, validation passes! + if ($total_errors == 0) + { + return TRUE; + } + + // Validation fails + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Traverse a multidimensional $_POST array index until the data is found + * + * @access private + * @param array + * @param array + * @param integer + * @return mixed + */ + function _reduce_array($array, $keys, $i = 0) + { + if (is_array($array)) + { + if (isset($keys[$i])) + { + if (isset($array[$keys[$i]])) + { + $array = $this->_reduce_array($array[$keys[$i]], $keys, ($i+1)); + } + else + { + return NULL; + } + } + else + { + return $array; + } + } + + return $array; + } + + // -------------------------------------------------------------------- + + /** + * Re-populate the _POST array with our finalized and processed data + * + * @access private + * @return null + */ + function _reset_post_array() + { + foreach ($this->_field_data as $field => $row) + { + if ( ! is_null($row['postdata'])) + { + if ($row['is_array'] == FALSE) + { + if (isset($_POST[$row['field']])) + { + $_POST[$row['field']] = $this->prep_for_form($row['postdata']); + } + } + else + { + $post = '$_POST["'; + + if (count($row['keys']) == 1) + { + $post .= current($row['keys']); + $post .= '"]'; + } + else + { + $i = 0; + foreach ($row['keys'] as $val) + { + if ($i == 0) + { + $post .= $val.'"]'; + $i++; + continue; + } + + $post .= '["'.$val.'"]'; + } + } + + if (is_array($row['postdata'])) + { + $array = array(); + foreach ($row['postdata'] as $k => $v) + { + $array[$k] = $this->prep_for_form($v); + } + + $post .= ' = $array;'; + } + else + { + $post .= ' = "'.$this->prep_for_form($row['postdata']).'";'; + } + + eval($post); + } + } + } + } + + // -------------------------------------------------------------------- + + /** + * Executes the Validation routines + * + * @access private + * @param array + * @param array + * @param mixed + * @param integer + * @return mixed + */ + function _execute($row, $rules, $postdata = NULL, $cycles = 0) + { + // If the $_POST data is an array we will run a recursive call + if (is_array($postdata)) + { + foreach ($postdata as $key => $val) + { + $this->_execute($row, $rules, $val, $cycles); + $cycles++; + } + + return; + } + + // -------------------------------------------------------------------- + + // If the field is blank, but NOT required, no further tests are necessary + if ( ! in_array('required', $rules, TRUE) AND is_null($postdata)) + { + return; + } + + // -------------------------------------------------------------------- + + // Isset Test. Typically this rule will only apply to checkboxes. + if (is_null($postdata)) + { + if (in_array('isset', $rules, TRUE) OR in_array('required', $rules)) + { + if ( ! isset($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 + $message = sprintf($line, $row['label']); + + // Save the error message + $this->_field_data[$row['field']]['error'] = $message; + + if ( ! isset($this->_error_array[$row['field']])) + { + $this->_error_array[$row['field']] = $message; + } + } + + return; + } + + // -------------------------------------------------------------------- + + // Cycle through each rule and run it + foreach ($rules As $rule) + { + $_in_array = FALSE; + + // We set the $postdata variable with the current data in our master array so that + // each cycle of the loop is dealing with the processed data from the last cycle + if ($row['is_array'] == TRUE AND is_array($this->_field_data[$row['field']]['postdata'])) + { + // We shouldn't need this safety, but just in case there isn't an array index + // associated with this cycle we'll bail out + if ( ! isset($this->_field_data[$row['field']]['postdata'][$cycles])) + { + continue; + } + + $postdata = $this->_field_data[$row['field']]['postdata'][$cycles]; + $_in_array = TRUE; + } + else + { + $postdata = $this->_field_data[$row['field']]['postdata']; + } + + // -------------------------------------------------------------------- + + // 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; + } + + // Run the function and grab the result + $result = $this->CI->$rule($postdata, $param); + + // Re-assign the result to the master data array + if ($_in_array == TRUE) + { + $this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result; + } + else + { + $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; + } + + // If the field isn't required and we just processed a callback we'll move on... + if ( ! in_array('required', $rules, TRUE) AND $result !== FALSE) + { + return; + } + } + else + { + if ( ! method_exists($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)) + { + $result = $rule($postdata); + + if ($_in_array == TRUE) + { + $this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result; + } + else + { + $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; + } + } + + continue; + } + + $result = $this->$rule($postdata, $param); + + if ($_in_array == TRUE) + { + $this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result; + } + else + { + $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; + } + } + + // Did the rule test negatively? If so, grab the error. + if ($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 + $message = sprintf($line, $row['label'], $param); + + // Save the error message + $this->_field_data[$row['field']]['error'] = $message; + + if ( ! isset($this->_error_array[$row['field']])) + { + $this->_error_array[$row['field']] = $message; + } + + return; + } + } + } + + // -------------------------------------------------------------------- + + /** + * Get the value from a form + * + * Permits you to repopulate a form field with the value it was submitted + * with, or, if that value doesn't exist, with the default + * + * @access public + * @param string the field name + * @param string + * @return void + */ + function set_value($field = '', $default = '') + { + if ( ! isset($this->_field_data[$field])) + { + return $default; + } + + return $this->_field_data[$field]['postdata']; + } + + // -------------------------------------------------------------------- + + /** + * 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 = '', $default = FALSE) + { + if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) + { + if ($default === TRUE AND count($this->_field_data) === 0) + { + return ' selected="selected"'; + } + return ''; + } + + $field = $this->_field_data[$field]['postdata']; + + if (is_array($field)) + { + if ( ! in_array($value, $field, TRUE)) + { + return ''; + } + } + else + { + if (($field == '' OR $value == '') OR ($field != $value)) + { + return ''; + } + } + + return ' selected="selected"'; + } + + // -------------------------------------------------------------------- + + /** + * Set Radio + * + * Enables radio buttons to be set to the value the user + * selected in the event of an error + * + * @access public + * @param string + * @param string + * @return string + */ + function set_radio($field = '', $value = '', $default = FALSE) + { + if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) + { + if ($default === TRUE AND count($this->_field_data) === 0) + { + return ' checked="checked"'; + } + return ''; + } + + $field = $this->_field_data[$field]['postdata']; + + if (is_array($field)) + { + if ( ! in_array($value, $field, TRUE)) + { + return ''; + } + } + else + { + if (($field == '' OR $value == '') OR ($field != $value)) + { + return ''; + } + } + + return ' checked="checked"'; + } + + // -------------------------------------------------------------------- + + /** + * Set Checkbox + * + * Enables checkboxes to be set to the value the user + * selected in the event of an error + * + * @access public + * @param string + * @param string + * @return string + */ + function set_checkbox($field = '', $value = '', $default = FALSE) + { + if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) + { + if ($default === TRUE AND count($this->_field_data) === 0) + { + return ' checked="checked"'; + } + return ''; + } + + $field = $this->_field_data[$field]['postdata']; + + if (is_array($field)) + { + if ( ! in_array($value, $field, TRUE)) + { + return ''; + } + } + else + { + if (($field == '' OR $value == '') OR ($field != $value)) + { + return ''; + } + } + + return ' checked="checked"'; + } + + // -------------------------------------------------------------------- + + /** + * Required + * + * @access public + * @param string + * @return bool + */ + function required($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; + } + + $field = $_POST[$field]; + + return ($str !== $field) ? FALSE : TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Minimum Length + * + * @access public + * @param string + * @param value + * @return bool + */ + function min_length($str, $val) + { + if (preg_match("/[^0-9]/", $val)) + { + return FALSE; + } + + return (strlen($str) < $val) ? FALSE : TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Max Length + * + * @access public + * @param string + * @param value + * @return bool + */ + function max_length($str, $val) + { + if (preg_match("/[^0-9]/", $val)) + { + return FALSE; + } + + return (strlen($str) > $val) ? FALSE : TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Exact Length + * + * @access public + * @param string + * @param value + * @return bool + */ + function exact_length($str, $val) + { + if (preg_match("/[^0-9]/", $val)) + { + return FALSE; + } + + return (strlen($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\/\+=]/', $str); + } + + // -------------------------------------------------------------------- + + /** + * Prep data for form + * + * This function allows HTML to be safely shown in a form. + * Special characters are converted. + * + * @access public + * @param string + * @return string + */ + function prep_for_form($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 $str == '') + { + return ''; + } + + if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://') + { + $str = 'http://'.$str; + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Strip Image Tags + * + * @access public + * @param string + * @return string + */ + function strip_image_tags($str) + { + return $this->CI->input->strip_image_tags($str); + } + + // -------------------------------------------------------------------- + + /** + * XSS Clean + * + * @access public + * @param string + * @return string + */ + function xss_clean($str) + { + return $this->CI->input->xss_clean($str); + } + + // -------------------------------------------------------------------- + + /** + * Convert PHP tags to entities + * + * @access public + * @param string + * @return string + */ + function encode_php_tags($str) + { + return str_replace(array(''), array('<?php', '<?PHP', '<?', '?>'), $str); + } + +} +// END Form Validation Class + +/* End of file Form_validation.php */ +/* Location: ./system/libraries/Form_validation.php */ \ No newline at end of file -- cgit v1.2.3-24-g4f1b From a5acb737a35215fca563899a7ba49be210706e30 Mon Sep 17 00:00:00 2001 From: Rick Ellis', $suffix = '
') - { - $this->_error_prefix = $prefix; - $this->_error_suffix = $suffix; - } - - // -------------------------------------------------------------------- - - /** - * Get Error Message - * - * Gets the error message associated with a particular field - * - * @access public - * @param string the field name - * @return void - */ - function error($field = '', $prefix = '', $suffix = '') - { - if ( ! isset($this->_field_data[$field]['error']) OR $this->_field_data[$field]['error'] == '') - { - return ''; - } - - if ($prefix == '') - { - $prefix = $this->_error_prefix; - } - - if ($suffix == '') - { - $suffix = $this->_error_suffix; - } - - return $prefix.$this->_field_data[$field]['error'].$suffix; - } - - // -------------------------------------------------------------------- - - /** - * Error String - * - * Returns the error messages as a string, wrapped in the error delimiters - * - * @access public - * @param string - * @param string - * @return str - */ - function error_string($prefix = '', $suffix = '') - { - // No errrors, validation passes! - if (count($this->_error_array) === 0) - { - return ''; - } - - if ($prefix == '') - { - $prefix = $this->_error_prefix; - } - - if ($suffix == '') - { - $suffix = $this->_error_suffix; - } - - // Generate the error string - $str = ''; - foreach ($this->_error_array as $val) - { - if ($val != '') - { - $str .= $prefix.$val.$suffix."\n"; - } - } - - return $str; - } - - // -------------------------------------------------------------------- - - /** - * Run the Validator - * - * This function does all the work. - * - * @access public - * @return bool - */ - function run($group = '') - { - // Do we even have any data to process? Mm? - if (count($_POST) == 0) - { - return FALSE; - } - - // Does the _field_data array containing the validation rules exist? - // If not, we look to see if they were assigned via a config file - if (count($this->_field_data) == 0) - { - // No validation rules? We're done... - if (count($this->_config_rules) == 0) - { - return FALSE; - } - - // Is there a validation rule for the particular URI being accessed? - $uri = ($group == '') ? trim($this->CI->uri->ruri_string(), '/') : $group; - - if ($uri != '' AND isset($this->_config_rules[$uri])) - { - $this->set_rules($this->_config_rules[$uri]); - } - else - { - $this->set_rules($this->_config_rules); - } - - // We're we able to set the rules correctly? - if (count($this->_field_data) == 0) - { - log_message('debug', "Unable to find validation rules"); - return FALSE; - } - } - - // Load the language file containing error messages - $this->CI->lang->load('form_validation'); - - // Cycle through the rules for each field, match the - // corresponding $_POST item and test for errors - foreach ($this->_field_data as $field => $row) - { - // Fetch the data from the corresponding $_POST array and cache it in the _field_data array. - // Depending on whether the field name is an array or a string will determine where we get it from. - - if ($row['is_array'] == TRUE) - { - $this->_field_data[$field]['postdata'] = $this->_reduce_array($_POST, $row['keys']); - } - else - { - if (isset($_POST[$field]) AND $_POST[$field] != "") - { - $this->_field_data[$field]['postdata'] = $_POST[$field]; - } - } - - $this->_execute($row, explode('|', $row['rules']), $this->_field_data[$field]['postdata']); - } - - // Did we end up with any errors? - $total_errors = count($this->_error_array); - - if ($total_errors > 0) - { - $this->_safe_form_data = TRUE; - } - - // Now we need to re-set the POST data with the new, processed data - $this->_reset_post_array(); - - // No errors, validation passes! - if ($total_errors == 0) - { - return TRUE; - } - - // Validation fails - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Traverse a multidimensional $_POST array index until the data is found - * - * @access private - * @param array - * @param array - * @param integer - * @return mixed - */ - function _reduce_array($array, $keys, $i = 0) - { - if (is_array($array)) - { - if (isset($keys[$i])) - { - if (isset($array[$keys[$i]])) - { - $array = $this->_reduce_array($array[$keys[$i]], $keys, ($i+1)); - } - else - { - return NULL; - } - } - else - { - return $array; - } - } - - return $array; - } - - // -------------------------------------------------------------------- - - /** - * Re-populate the _POST array with our finalized and processed data - * - * @access private - * @return null - */ - function _reset_post_array() - { - foreach ($this->_field_data as $field => $row) - { - if ( ! is_null($row['postdata'])) - { - if ($row['is_array'] == FALSE) - { - if (isset($_POST[$row['field']])) - { - $_POST[$row['field']] = $this->prep_for_form($row['postdata']); - } - } - else - { - $post = '$_POST["'; - - if (count($row['keys']) == 1) - { - $post .= current($row['keys']); - $post .= '"]'; - } - else - { - $i = 0; - foreach ($row['keys'] as $val) - { - if ($i == 0) - { - $post .= $val.'"]'; - $i++; - continue; - } - - $post .= '["'.$val.'"]'; - } - } - - if (is_array($row['postdata'])) - { - $array = array(); - foreach ($row['postdata'] as $k => $v) - { - $array[$k] = $this->prep_for_form($v); - } - - $post .= ' = $array;'; - } - else - { - $post .= ' = "'.$this->prep_for_form($row['postdata']).'";'; - } - - eval($post); - } - } - } - } - - // -------------------------------------------------------------------- - - /** - * Executes the Validation routines - * - * @access private - * @param array - * @param array - * @param mixed - * @param integer - * @return mixed - */ - function _execute($row, $rules, $postdata = NULL, $cycles = 0) - { - // If the $_POST data is an array we will run a recursive call - if (is_array($postdata)) - { - foreach ($postdata as $key => $val) - { - $this->_execute($row, $rules, $val, $cycles); - $cycles++; - } - - return; - } - - // -------------------------------------------------------------------- - - // If the field is blank, but NOT required, no further tests are necessary - $callback = FALSE; - if ( ! in_array('required', $rules) AND is_null($postdata)) - { - // Before we bail out, does the rule contain a callback? - if (preg_match("/(callback_\w+)/", implode(' ', $rules), $match)) - { - $callback = TRUE; - $rules = (array('1' => $match[1])); - } - else - { - return; - } - } - - // -------------------------------------------------------------------- - - // Isset Test. Typically this rule will only apply to checkboxes. - if (is_null($postdata) AND $callback == FALSE) - { - if (in_array('isset', $rules, TRUE) OR in_array('required', $rules)) - { - // Set the message type - $type = (in_array('required', $rules)) ? 'required' : 'isset'; - - if ( ! isset($this->_error_messages[$type])) - { - if (FALSE === ($line = $this->CI->lang->line($type))) - { - $line = 'The field was not set'; - } - } - else - { - $line = $this->_error_messages[$type]; - } - - // Build the error message - $message = sprintf($line, $this->_translate_fieldname($row['label'])); - - // Save the error message - $this->_field_data[$row['field']]['error'] = $message; - - if ( ! isset($this->_error_array[$row['field']])) - { - $this->_error_array[$row['field']] = $message; - } - } - - return; - } - - // -------------------------------------------------------------------- - - // Cycle through each rule and run it - foreach ($rules As $rule) - { - $_in_array = FALSE; - - // We set the $postdata variable with the current data in our master array so that - // each cycle of the loop is dealing with the processed data from the last cycle - if ($row['is_array'] == TRUE AND is_array($this->_field_data[$row['field']]['postdata'])) - { - // We shouldn't need this safety, but just in case there isn't an array index - // associated with this cycle we'll bail out - if ( ! isset($this->_field_data[$row['field']]['postdata'][$cycles])) - { - continue; - } - - $postdata = $this->_field_data[$row['field']]['postdata'][$cycles]; - $_in_array = TRUE; - } - else - { - $postdata = $this->_field_data[$row['field']]['postdata']; - } - - // -------------------------------------------------------------------- - - // 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; - } - - // Run the function and grab the result - $result = $this->CI->$rule($postdata, $param); - - // Re-assign the result to the master data array - if ($_in_array == TRUE) - { - $this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result; - } - else - { - $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; - } - - // If the field isn't required and we just processed a callback we'll move on... - if ( ! in_array('required', $rules, TRUE) AND $result !== FALSE) - { - return; - } - } - else - { - if ( ! method_exists($this, $rule)) - { - // If our own wrapper function doesn't exist we see if a native PHP function does. - // Users can use any native PHP function call that has one param. - if (function_exists($rule)) - { - $result = $rule($postdata); - - if ($_in_array == TRUE) - { - $this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result; - } - else - { - $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; - } - } - - continue; - } - - $result = $this->$rule($postdata, $param); - - if ($_in_array == TRUE) - { - $this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result; - } - else - { - $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; - } - } - - // Did the rule test negatively? If so, grab the error. - if ($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]; - } - - // Is the parameter we are inserting into the error message the name - // of another field? If so we need to grab its "field label" - if (isset($this->_field_data[$param]) AND isset($this->_field_data[$param]['label'])) - { - $param = $this->_field_data[$param]['label']; - } - - // Build the error message - $message = sprintf($line, $this->_translate_fieldname($row['label']), $param); - - // Save the error message - $this->_field_data[$row['field']]['error'] = $message; - - if ( ! isset($this->_error_array[$row['field']])) - { - $this->_error_array[$row['field']] = $message; - } - - return; - } - } - } - - // -------------------------------------------------------------------- - - /** - * Translate a field name - * - * @access private - * @param string the field name - * @return string - */ - function _translate_fieldname($fieldname) - { - // Do we need to translate the field name? - // We look for the prefix lang: to determine this - if (substr($fieldname, 0, 5) == 'lang:') - { - // Grab the variable - $line = substr($fieldname, 5); - - // Were we able to translate the field name? If not we use $line - if (FALSE === ($fieldname = $this->CI->lang->line($line))) - { - return $line; - } - } - - return $fieldname; - } - - // -------------------------------------------------------------------- - - /** - * Get the value from a form - * - * Permits you to repopulate a form field with the value it was submitted - * with, or, if that value doesn't exist, with the default - * - * @access public - * @param string the field name - * @param string - * @return void - */ - function set_value($field = '', $default = '') - { - if ( ! isset($this->_field_data[$field])) - { - return $default; - } - - return $this->_field_data[$field]['postdata']; - } - - // -------------------------------------------------------------------- - - /** - * 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 = '', $default = FALSE) - { - if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) - { - if ($default === TRUE AND count($this->_field_data) === 0) - { - return ' selected="selected"'; - } - return ''; - } - - $field = $this->_field_data[$field]['postdata']; - - if (is_array($field)) - { - if ( ! in_array($value, $field)) - { - return ''; - } - } - else - { - if (($field == '' OR $value == '') OR ($field != $value)) - { - return ''; - } - } - - return ' selected="selected"'; - } - - // -------------------------------------------------------------------- - - /** - * Set Radio - * - * Enables radio buttons to be set to the value the user - * selected in the event of an error - * - * @access public - * @param string - * @param string - * @return string - */ - function set_radio($field = '', $value = '', $default = FALSE) - { - if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) - { - if ($default === TRUE AND count($this->_field_data) === 0) - { - return ' checked="checked"'; - } - return ''; - } - - $field = $this->_field_data[$field]['postdata']; - - if (is_array($field)) - { - if ( ! in_array($value, $field)) - { - return ''; - } - } - else - { - if (($field == '' OR $value == '') OR ($field != $value)) - { - return ''; - } - } - - return ' checked="checked"'; - } - - // -------------------------------------------------------------------- - - /** - * Set Checkbox - * - * Enables checkboxes to be set to the value the user - * selected in the event of an error - * - * @access public - * @param string - * @param string - * @return string - */ - function set_checkbox($field = '', $value = '', $default = FALSE) - { - if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) - { - if ($default === TRUE AND count($this->_field_data) === 0) - { - return ' checked="checked"'; - } - return ''; - } - - $field = $this->_field_data[$field]['postdata']; - - if (is_array($field)) - { - if ( ! in_array($value, $field)) - { - return ''; - } - } - else - { - if (($field == '' OR $value == '') OR ($field != $value)) - { - return ''; - } - } - - return ' checked="checked"'; - } - - // -------------------------------------------------------------------- - - /** - * Required - * - * @access public - * @param string - * @return bool - */ - function required($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; - } - - $field = $_POST[$field]; - - return ($str !== $field) ? FALSE : TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Minimum Length - * - * @access public - * @param string - * @param value - * @return bool - */ - function min_length($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\/\+=]/', $str); - } - - // -------------------------------------------------------------------- - - /** - * Prep data for form - * - * This function allows HTML to be safely shown in a form. - * Special characters are converted. - * - * @access public - * @param string - * @return string - */ - function prep_for_form($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 $str == '') - { - return ''; - } - - if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://') - { - $str = 'http://'.$str; - } - - return $str; - } - - // -------------------------------------------------------------------- - - /** - * Strip Image Tags - * - * @access public - * @param string - * @return string - */ - function strip_image_tags($str) - { - return $this->CI->input->strip_image_tags($str); - } - - // -------------------------------------------------------------------- - - /** - * XSS Clean - * - * @access public - * @param string - * @return string - */ - function xss_clean($str) - { - return $this->CI->input->xss_clean($str); - } - - // -------------------------------------------------------------------- - - /** - * Convert PHP tags to entities - * - * @access public - * @param string - * @return string - */ - function encode_php_tags($str) - { - return str_replace(array(''), array('<?php', '<?PHP', '<?', '?>'), $str); - } - -} -// END Form Validation Class - -/* End of file Form_validation.php */ +'; + var $_error_suffix = ''; + var $error_string = ''; + var $_safe_form_data = FALSE; + + + /** + * Constructor + * + */ + function CI_Form_validation($rules = array()) + { + $this->CI =& get_instance(); + + // Validation rules can be stored in a config file. + $this->_config_rules = $rules; + + // Automatically load the form helper + $this->CI->load->helper('form'); + + // Set the character encoding in MB. + if (function_exists('mb_internal_encoding')) + { + mb_internal_encoding($this->CI->config->item('charset')); + } + + log_message('debug', "Form Validation Class Initialized"); + } + + // -------------------------------------------------------------------- + + /** + * Set Rules + * + * This function takes an array of field names and validation + * rules as input, validates the info, and stores it + * + * @access public + * @param mixed + * @param string + * @return void + */ + function set_rules($field, $label = '', $rules = '') + { + // No reason to set rules if we have no POST data + if (count($_POST) == 0) + { + return; + } + + // If an array was passed via the first parameter instead of indidual string + // values we cycle through it and recursively call this function. + if (is_array($field)) + { + foreach ($field as $row) + { + // Houston, we have a problem... + if ( ! isset($row['field']) OR ! isset($row['rules'])) + { + continue; + } + + // If the field label wasn't passed we use the field name + $label = ( ! isset($row['label'])) ? $row['field'] : $row['label']; + + // Here we go! + $this->set_rules($row['field'], $label, $row['rules']); + } + return; + } + + // No fields? Nothing to do... + if ( ! is_string($field) OR ! is_string($rules) OR $field == '') + { + return; + } + + // If the field label wasn't passed we use the field name + $label = ($label == '') ? $field : $label; + + // Is the field name an array? We test for the existence of a bracket "[" in + // the field name to determine this. If it is an array, we break it apart + // into its components so that we can fetch the corresponding POST data later + if (strpos($field, '[') !== FALSE AND preg_match_all('/\[(.*?)\]/', $field, $matches)) + { + // Note: Due to a bug in current() that affects some versions + // of PHP we can not pass function call directly into it + $x = explode('[', $field); + $indexes[] = current($x); + + for ($i = 0; $i < count($matches['0']); $i++) + { + if ($matches['1'][$i] != '') + { + $indexes[] = $matches['1'][$i]; + } + } + + $is_array = TRUE; + } + else + { + $indexes = array(); + $is_array = FALSE; + } + + // Build our master array + $this->_field_data[$field] = array( + 'field' => $field, + 'label' => $label, + 'rules' => $rules, + 'is_array' => $is_array, + 'keys' => $indexes, + 'postdata' => NULL, + 'error' => '' + ); + } + + // -------------------------------------------------------------------- + + /** + * Set Error Message + * + * Lets users set their own error messages on the fly. Note: The key + * name has to match the function name that it corresponds to. + * + * @access public + * @param string + * @param string + * @return string + */ + function set_message($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 = '', $suffix = '
') + { + $this->_error_prefix = $prefix; + $this->_error_suffix = $suffix; + } + + // -------------------------------------------------------------------- + + /** + * Get Error Message + * + * Gets the error message associated with a particular field + * + * @access public + * @param string the field name + * @return void + */ + function error($field = '', $prefix = '', $suffix = '') + { + if ( ! isset($this->_field_data[$field]['error']) OR $this->_field_data[$field]['error'] == '') + { + return ''; + } + + if ($prefix == '') + { + $prefix = $this->_error_prefix; + } + + if ($suffix == '') + { + $suffix = $this->_error_suffix; + } + + return $prefix.$this->_field_data[$field]['error'].$suffix; + } + + // -------------------------------------------------------------------- + + /** + * Error String + * + * Returns the error messages as a string, wrapped in the error delimiters + * + * @access public + * @param string + * @param string + * @return str + */ + function error_string($prefix = '', $suffix = '') + { + // No errrors, validation passes! + if (count($this->_error_array) === 0) + { + return ''; + } + + if ($prefix == '') + { + $prefix = $this->_error_prefix; + } + + if ($suffix == '') + { + $suffix = $this->_error_suffix; + } + + // Generate the error string + $str = ''; + foreach ($this->_error_array as $val) + { + if ($val != '') + { + $str .= $prefix.$val.$suffix."\n"; + } + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Run the Validator + * + * This function does all the work. + * + * @access public + * @return bool + */ + function run($group = '') + { + // Do we even have any data to process? Mm? + if (count($_POST) == 0) + { + return FALSE; + } + + // Does the _field_data array containing the validation rules exist? + // If not, we look to see if they were assigned via a config file + if (count($this->_field_data) == 0) + { + // No validation rules? We're done... + if (count($this->_config_rules) == 0) + { + return FALSE; + } + + // Is there a validation rule for the particular URI being accessed? + $uri = ($group == '') ? trim($this->CI->uri->ruri_string(), '/') : $group; + + if ($uri != '' AND isset($this->_config_rules[$uri])) + { + $this->set_rules($this->_config_rules[$uri]); + } + else + { + $this->set_rules($this->_config_rules); + } + + // We're we able to set the rules correctly? + if (count($this->_field_data) == 0) + { + log_message('debug', "Unable to find validation rules"); + return FALSE; + } + } + + // Load the language file containing error messages + $this->CI->lang->load('form_validation'); + + // Cycle through the rules for each field, match the + // corresponding $_POST item and test for errors + foreach ($this->_field_data as $field => $row) + { + // Fetch the data from the corresponding $_POST array and cache it in the _field_data array. + // Depending on whether the field name is an array or a string will determine where we get it from. + + if ($row['is_array'] == TRUE) + { + $this->_field_data[$field]['postdata'] = $this->_reduce_array($_POST, $row['keys']); + } + else + { + if (isset($_POST[$field]) AND $_POST[$field] != "") + { + $this->_field_data[$field]['postdata'] = $_POST[$field]; + } + } + + $this->_execute($row, explode('|', $row['rules']), $this->_field_data[$field]['postdata']); + } + + // Did we end up with any errors? + $total_errors = count($this->_error_array); + + if ($total_errors > 0) + { + $this->_safe_form_data = TRUE; + } + + // Now we need to re-set the POST data with the new, processed data + $this->_reset_post_array(); + + // No errors, validation passes! + if ($total_errors == 0) + { + return TRUE; + } + + // Validation fails + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Traverse a multidimensional $_POST array index until the data is found + * + * @access private + * @param array + * @param array + * @param integer + * @return mixed + */ + function _reduce_array($array, $keys, $i = 0) + { + if (is_array($array)) + { + if (isset($keys[$i])) + { + if (isset($array[$keys[$i]])) + { + $array = $this->_reduce_array($array[$keys[$i]], $keys, ($i+1)); + } + else + { + return NULL; + } + } + else + { + return $array; + } + } + + return $array; + } + + // -------------------------------------------------------------------- + + /** + * Re-populate the _POST array with our finalized and processed data + * + * @access private + * @return null + */ + function _reset_post_array() + { + foreach ($this->_field_data as $field => $row) + { + if ( ! is_null($row['postdata'])) + { + if ($row['is_array'] == FALSE) + { + if (isset($_POST[$row['field']])) + { + $_POST[$row['field']] = $this->prep_for_form($row['postdata']); + } + } + else + { + $post = '$_POST["'; + + if (count($row['keys']) == 1) + { + $post .= current($row['keys']); + $post .= '"]'; + } + else + { + $i = 0; + foreach ($row['keys'] as $val) + { + if ($i == 0) + { + $post .= $val.'"]'; + $i++; + continue; + } + + $post .= '["'.$val.'"]'; + } + } + + if (is_array($row['postdata'])) + { + $array = array(); + foreach ($row['postdata'] as $k => $v) + { + $array[$k] = $this->prep_for_form($v); + } + + $post .= ' = $array;'; + } + else + { + $post .= ' = "'.$this->prep_for_form($row['postdata']).'";'; + } + + eval($post); + } + } + } + } + + // -------------------------------------------------------------------- + + /** + * Executes the Validation routines + * + * @access private + * @param array + * @param array + * @param mixed + * @param integer + * @return mixed + */ + function _execute($row, $rules, $postdata = NULL, $cycles = 0) + { + // If the $_POST data is an array we will run a recursive call + if (is_array($postdata)) + { + foreach ($postdata as $key => $val) + { + $this->_execute($row, $rules, $val, $cycles); + $cycles++; + } + + return; + } + + // -------------------------------------------------------------------- + + // If the field is blank, but NOT required, no further tests are necessary + $callback = FALSE; + if ( ! in_array('required', $rules) AND is_null($postdata)) + { + // Before we bail out, does the rule contain a callback? + if (preg_match("/(callback_\w+)/", implode(' ', $rules), $match)) + { + $callback = TRUE; + $rules = (array('1' => $match[1])); + } + else + { + return; + } + } + + // -------------------------------------------------------------------- + + // Isset Test. Typically this rule will only apply to checkboxes. + if (is_null($postdata) AND $callback == FALSE) + { + if (in_array('isset', $rules, TRUE) OR in_array('required', $rules)) + { + // Set the message type + $type = (in_array('required', $rules)) ? 'required' : 'isset'; + + if ( ! isset($this->_error_messages[$type])) + { + if (FALSE === ($line = $this->CI->lang->line($type))) + { + $line = 'The field was not set'; + } + } + else + { + $line = $this->_error_messages[$type]; + } + + // Build the error message + $message = sprintf($line, $this->_translate_fieldname($row['label'])); + + // Save the error message + $this->_field_data[$row['field']]['error'] = $message; + + if ( ! isset($this->_error_array[$row['field']])) + { + $this->_error_array[$row['field']] = $message; + } + } + + return; + } + + // -------------------------------------------------------------------- + + // Cycle through each rule and run it + foreach ($rules As $rule) + { + $_in_array = FALSE; + + // We set the $postdata variable with the current data in our master array so that + // each cycle of the loop is dealing with the processed data from the last cycle + if ($row['is_array'] == TRUE AND is_array($this->_field_data[$row['field']]['postdata'])) + { + // We shouldn't need this safety, but just in case there isn't an array index + // associated with this cycle we'll bail out + if ( ! isset($this->_field_data[$row['field']]['postdata'][$cycles])) + { + continue; + } + + $postdata = $this->_field_data[$row['field']]['postdata'][$cycles]; + $_in_array = TRUE; + } + else + { + $postdata = $this->_field_data[$row['field']]['postdata']; + } + + // -------------------------------------------------------------------- + + // 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; + } + + // Run the function and grab the result + $result = $this->CI->$rule($postdata, $param); + + // Re-assign the result to the master data array + if ($_in_array == TRUE) + { + $this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result; + } + else + { + $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; + } + + // If the field isn't required and we just processed a callback we'll move on... + if ( ! in_array('required', $rules, TRUE) AND $result !== FALSE) + { + return; + } + } + else + { + if ( ! method_exists($this, $rule)) + { + // If our own wrapper function doesn't exist we see if a native PHP function does. + // Users can use any native PHP function call that has one param. + if (function_exists($rule)) + { + $result = $rule($postdata); + + if ($_in_array == TRUE) + { + $this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result; + } + else + { + $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; + } + } + + continue; + } + + $result = $this->$rule($postdata, $param); + + if ($_in_array == TRUE) + { + $this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result; + } + else + { + $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; + } + } + + // Did the rule test negatively? If so, grab the error. + if ($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]; + } + + // Is the parameter we are inserting into the error message the name + // of another field? If so we need to grab its "field label" + if (isset($this->_field_data[$param]) AND isset($this->_field_data[$param]['label'])) + { + $param = $this->_field_data[$param]['label']; + } + + // Build the error message + $message = sprintf($line, $this->_translate_fieldname($row['label']), $param); + + // Save the error message + $this->_field_data[$row['field']]['error'] = $message; + + if ( ! isset($this->_error_array[$row['field']])) + { + $this->_error_array[$row['field']] = $message; + } + + return; + } + } + } + + // -------------------------------------------------------------------- + + /** + * Translate a field name + * + * @access private + * @param string the field name + * @return string + */ + function _translate_fieldname($fieldname) + { + // Do we need to translate the field name? + // We look for the prefix lang: to determine this + if (substr($fieldname, 0, 5) == 'lang:') + { + // Grab the variable + $line = substr($fieldname, 5); + + // Were we able to translate the field name? If not we use $line + if (FALSE === ($fieldname = $this->CI->lang->line($line))) + { + return $line; + } + } + + return $fieldname; + } + + // -------------------------------------------------------------------- + + /** + * Get the value from a form + * + * Permits you to repopulate a form field with the value it was submitted + * with, or, if that value doesn't exist, with the default + * + * @access public + * @param string the field name + * @param string + * @return void + */ + function set_value($field = '', $default = '') + { + if ( ! isset($this->_field_data[$field])) + { + return $default; + } + + return $this->_field_data[$field]['postdata']; + } + + // -------------------------------------------------------------------- + + /** + * 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 = '', $default = FALSE) + { + if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) + { + if ($default === TRUE AND count($this->_field_data) === 0) + { + return ' selected="selected"'; + } + return ''; + } + + $field = $this->_field_data[$field]['postdata']; + + if (is_array($field)) + { + if ( ! in_array($value, $field)) + { + return ''; + } + } + else + { + if (($field == '' OR $value == '') OR ($field != $value)) + { + return ''; + } + } + + return ' selected="selected"'; + } + + // -------------------------------------------------------------------- + + /** + * Set Radio + * + * Enables radio buttons to be set to the value the user + * selected in the event of an error + * + * @access public + * @param string + * @param string + * @return string + */ + function set_radio($field = '', $value = '', $default = FALSE) + { + if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) + { + if ($default === TRUE AND count($this->_field_data) === 0) + { + return ' checked="checked"'; + } + return ''; + } + + $field = $this->_field_data[$field]['postdata']; + + if (is_array($field)) + { + if ( ! in_array($value, $field)) + { + return ''; + } + } + else + { + if (($field == '' OR $value == '') OR ($field != $value)) + { + return ''; + } + } + + return ' checked="checked"'; + } + + // -------------------------------------------------------------------- + + /** + * Set Checkbox + * + * Enables checkboxes to be set to the value the user + * selected in the event of an error + * + * @access public + * @param string + * @param string + * @return string + */ + function set_checkbox($field = '', $value = '', $default = FALSE) + { + if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) + { + if ($default === TRUE AND count($this->_field_data) === 0) + { + return ' checked="checked"'; + } + return ''; + } + + $field = $this->_field_data[$field]['postdata']; + + if (is_array($field)) + { + if ( ! in_array($value, $field)) + { + return ''; + } + } + else + { + if (($field == '' OR $value == '') OR ($field != $value)) + { + return ''; + } + } + + return ' checked="checked"'; + } + + // -------------------------------------------------------------------- + + /** + * Required + * + * @access public + * @param string + * @return bool + */ + function required($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; + } + + $field = $_POST[$field]; + + return ($str !== $field) ? FALSE : TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Minimum Length + * + * @access public + * @param string + * @param value + * @return bool + */ + function min_length($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\/\+=]/', $str); + } + + // -------------------------------------------------------------------- + + /** + * Prep data for form + * + * This function allows HTML to be safely shown in a form. + * Special characters are converted. + * + * @access public + * @param string + * @return string + */ + function prep_for_form($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 $str == '') + { + return ''; + } + + if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://') + { + $str = 'http://'.$str; + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Strip Image Tags + * + * @access public + * @param string + * @return string + */ + function strip_image_tags($str) + { + return $this->CI->input->strip_image_tags($str); + } + + // -------------------------------------------------------------------- + + /** + * XSS Clean + * + * @access public + * @param string + * @return string + */ + function xss_clean($str) + { + return $this->CI->input->xss_clean($str); + } + + // -------------------------------------------------------------------- + + /** + * Convert PHP tags to entities + * + * @access public + * @param string + * @return string + */ + function encode_php_tags($str) + { + return str_replace(array(''), array('<?php', '<?PHP', '<?', '?>'), $str); + } + +} +// END Form Validation Class + +/* End of file Form_validation.php */ /* Location: ./system/libraries/Form_validation.php */ \ No newline at end of file -- cgit v1.2.3-24-g4f1b From 63eeae3357b94edfdd5b652fd97fe878403be9f8 Mon Sep 17 00:00:00 2001 From: Derek Jones'; var $_error_suffix = '
'; var $error_string = ''; - var $_safe_form_data = FALSE; + var $_safe_form_data = FALSE; /** * Constructor * - */ + */ function CI_Form_validation($rules = array()) - { + { $this->CI =& get_instance(); - + // Validation rules can be stored in a config file. $this->_config_rules = $rules; - + // Automatically load the form helper $this->CI->load->helper('form'); @@ -56,12 +56,12 @@ class CI_Form_validation { { mb_internal_encoding($this->CI->config->item('charset')); } - + log_message('debug', "Form Validation Class Initialized"); } - + // -------------------------------------------------------------------- - + /** * Set Rules * @@ -80,7 +80,7 @@ class CI_Form_validation { { return; } - + // If an array was passed via the first parameter instead of indidual string // values we cycle through it and recursively call this function. if (is_array($field)) @@ -101,7 +101,7 @@ class CI_Form_validation { } return; } - + // No fields? Nothing to do... if ( ! is_string($field) OR ! is_string($rules) OR $field == '') { @@ -113,9 +113,9 @@ class CI_Form_validation { // Is the field name an array? We test for the existence of a bracket "[" in // the field name to determine this. If it is an array, we break it apart - // into its components so that we can fetch the corresponding POST data later + // into its components so that we can fetch the corresponding POST data later if (strpos($field, '[') !== FALSE AND preg_match_all('/\[(.*?)\]/', $field, $matches)) - { + { // Note: Due to a bug in current() that affects some versions // of PHP we can not pass function call directly into it $x = explode('[', $field); @@ -128,19 +128,19 @@ class CI_Form_validation { $indexes[] = $matches['1'][$i]; } } - + $is_array = TRUE; } else { - $indexes = array(); - $is_array = FALSE; + $indexes = array(); + $is_array = FALSE; } - - // Build our master array + + // Build our master array $this->_field_data[$field] = array( - 'field' => $field, - 'label' => $label, + 'field' => $field, + 'label' => $label, 'rules' => $rules, 'is_array' => $is_array, 'keys' => $indexes, @@ -150,7 +150,7 @@ class CI_Form_validation { } // -------------------------------------------------------------------- - + /** * Set Error Message * @@ -168,12 +168,12 @@ class CI_Form_validation { { $lang = array($lang => $val); } - + $this->_error_messages = array_merge($this->_error_messages, $lang); } - + // -------------------------------------------------------------------- - + /** * Set The Error Delimiter * @@ -183,7 +183,7 @@ class CI_Form_validation { * @param string * @param string * @return void - */ + */ function set_error_delimiters($prefix = '', $suffix = '
') { $this->_error_prefix = $prefix; @@ -191,7 +191,7 @@ class CI_Form_validation { } // -------------------------------------------------------------------- - + /** * Get Error Message * @@ -200,14 +200,14 @@ class CI_Form_validation { * @access public * @param string the field name * @return void - */ + */ function error($field = '', $prefix = '', $suffix = '') - { + { if ( ! isset($this->_field_data[$field]['error']) OR $this->_field_data[$field]['error'] == '') { return ''; } - + if ($prefix == '') { $prefix = $this->_error_prefix; @@ -222,7 +222,7 @@ class CI_Form_validation { } // -------------------------------------------------------------------- - + /** * Error String * @@ -232,7 +232,7 @@ class CI_Form_validation { * @param string * @param string * @return str - */ + */ function error_string($prefix = '', $suffix = '') { // No errrors, validation passes! @@ -240,7 +240,7 @@ class CI_Form_validation { { return ''; } - + if ($prefix == '') { $prefix = $this->_error_prefix; @@ -250,7 +250,7 @@ class CI_Form_validation { { $suffix = $this->_error_suffix; } - + // Generate the error string $str = ''; foreach ($this->_error_array as $val) @@ -260,12 +260,12 @@ class CI_Form_validation { $str .= $prefix.$val.$suffix."\n"; } } - + return $str; } // -------------------------------------------------------------------- - + /** * Run the Validator * @@ -273,7 +273,7 @@ class CI_Form_validation { * * @access public * @return bool - */ + */ function run($group = '') { // Do we even have any data to process? Mm? @@ -281,7 +281,7 @@ class CI_Form_validation { { return FALSE; } - + // Does the _field_data array containing the validation rules exist? // If not, we look to see if they were assigned via a config file if (count($this->_field_data) == 0) @@ -291,10 +291,10 @@ class CI_Form_validation { { return FALSE; } - + // Is there a validation rule for the particular URI being accessed? $uri = ($group == '') ? trim($this->CI->uri->ruri_string(), '/') : $group; - + if ($uri != '' AND isset($this->_config_rules[$uri])) { $this->set_rules($this->_config_rules[$uri]); @@ -303,7 +303,7 @@ class CI_Form_validation { { $this->set_rules($this->_config_rules); } - + // We're we able to set the rules correctly? if (count($this->_field_data) == 0) { @@ -311,17 +311,17 @@ class CI_Form_validation { return FALSE; } } - + // Load the language file containing error messages $this->CI->lang->load('form_validation'); - - // Cycle through the rules for each field, match the + + // Cycle through the rules for each field, match the // corresponding $_POST item and test for errors foreach ($this->_field_data as $field => $row) - { + { // Fetch the data from the corresponding $_POST array and cache it in the _field_data array. // Depending on whether the field name is an array or a string will determine where we get it from. - + if ($row['is_array'] == TRUE) { $this->_field_data[$field]['postdata'] = $this->_reduce_array($_POST, $row['keys']); @@ -333,8 +333,8 @@ class CI_Form_validation { $this->_field_data[$field]['postdata'] = $_POST[$field]; } } - - $this->_execute($row, explode('|', $row['rules']), $this->_field_data[$field]['postdata']); + + $this->_execute($row, explode('|', $row['rules']), $this->_field_data[$field]['postdata']); } // Did we end up with any errors? @@ -347,7 +347,7 @@ class CI_Form_validation { // Now we need to re-set the POST data with the new, processed data $this->_reset_post_array(); - + // No errors, validation passes! if ($total_errors == 0) { @@ -359,7 +359,7 @@ class CI_Form_validation { } // -------------------------------------------------------------------- - + /** * Traverse a multidimensional $_POST array index until the data is found * @@ -368,7 +368,7 @@ class CI_Form_validation { * @param array * @param integer * @return mixed - */ + */ function _reduce_array($array, $keys, $i = 0) { if (is_array($array)) @@ -389,18 +389,18 @@ class CI_Form_validation { return $array; } } - + return $array; } // -------------------------------------------------------------------- - + /** * Re-populate the _POST array with our finalized and processed data * * @access private * @return null - */ + */ function _reset_post_array() { foreach ($this->_field_data as $field => $row) @@ -418,7 +418,7 @@ class CI_Form_validation { { // start with a reference $post_ref =& $_POST; - + // before we assign values, make a reference to the right POST key if (count($row['keys']) == 1) { @@ -452,7 +452,7 @@ class CI_Form_validation { } // -------------------------------------------------------------------- - + /** * Executes the Validation routines * @@ -462,21 +462,21 @@ class CI_Form_validation { * @param mixed * @param integer * @return mixed - */ + */ function _execute($row, $rules, $postdata = NULL, $cycles = 0) { // If the $_POST data is an array we will run a recursive call if (is_array($postdata)) - { + { foreach ($postdata as $key => $val) { $this->_execute($row, $rules, $val, $cycles); $cycles++; } - + return; } - + // -------------------------------------------------------------------- // If the field is blank, but NOT required, no further tests are necessary @@ -496,7 +496,7 @@ class CI_Form_validation { } // -------------------------------------------------------------------- - + // Isset Test. Typically this rule will only apply to checkboxes. if (is_null($postdata) AND $callback == FALSE) { @@ -504,31 +504,31 @@ class CI_Form_validation { { // Set the message type $type = (in_array('required', $rules)) ? 'required' : 'isset'; - + if ( ! isset($this->_error_messages[$type])) { if (FALSE === ($line = $this->CI->lang->line($type))) { $line = 'The field was not set'; - } + } } else { $line = $this->_error_messages[$type]; } - + // Build the error message $message = sprintf($line, $this->_translate_fieldname($row['label'])); // Save the error message $this->_field_data[$row['field']]['error'] = $message; - + if ( ! isset($this->_error_array[$row['field']])) { $this->_error_array[$row['field']] = $message; } } - + return; } @@ -538,7 +538,7 @@ class CI_Form_validation { foreach ($rules As $rule) { $_in_array = FALSE; - + // We set the $postdata variable with the current data in our master array so that // each cycle of the loop is dealing with the processed data from the last cycle if ($row['is_array'] == TRUE AND is_array($this->_field_data[$row['field']]['postdata'])) @@ -549,7 +549,7 @@ class CI_Form_validation { { continue; } - + $postdata = $this->_field_data[$row['field']]['postdata'][$cycles]; $_in_array = TRUE; } @@ -559,15 +559,15 @@ class CI_Form_validation { } // -------------------------------------------------------------------- - - // Is the rule a callback? + + // 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; @@ -576,15 +576,15 @@ class CI_Form_validation { $rule = $match[1]; $param = $match[2]; } - + // Call the function that corresponds to the rule if ($callback === TRUE) { if ( ! method_exists($this->CI, $rule)) - { + { continue; } - + // Run the function and grab the result $result = $this->CI->$rule($postdata, $param); @@ -597,7 +597,7 @@ class CI_Form_validation { { $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; } - + // If the field isn't required and we just processed a callback we'll move on... if ( ! in_array('required', $rules, TRUE) AND $result !== FALSE) { @@ -605,15 +605,15 @@ class CI_Form_validation { } } else - { + { if ( ! method_exists($this, $rule)) { - // If our own wrapper function doesn't exist we see if a native PHP function does. + // If our own wrapper function doesn't exist we see if a native PHP function does. // Users can use any native PHP function call that has one param. if (function_exists($rule)) { $result = $rule($postdata); - + if ($_in_array == TRUE) { $this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result; @@ -623,7 +623,7 @@ class CI_Form_validation { $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; } } - + continue; } @@ -638,54 +638,54 @@ class CI_Form_validation { $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; } } - + // Did the rule test negatively? If so, grab the error. if ($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]; } - + // Is the parameter we are inserting into the error message the name // of another field? If so we need to grab its "field label" if (isset($this->_field_data[$param]) AND isset($this->_field_data[$param]['label'])) { $param = $this->_translate_fieldname($this->_field_data[$param]['label']); } - + // Build the error message $message = sprintf($line, $this->_translate_fieldname($row['label']), $param); // Save the error message $this->_field_data[$row['field']]['error'] = $message; - + if ( ! isset($this->_error_array[$row['field']])) { $this->_error_array[$row['field']] = $message; } - + return; } } } // -------------------------------------------------------------------- - + /** * Translate a field name * * @access private * @param string the field name * @return string - */ + */ function _translate_fieldname($fieldname) { // Do we need to translate the field name? @@ -693,8 +693,8 @@ class CI_Form_validation { if (substr($fieldname, 0, 5) == 'lang:') { // Grab the variable - $line = substr($fieldname, 5); - + $line = substr($fieldname, 5); + // Were we able to translate the field name? If not we use $line if (FALSE === ($fieldname = $this->CI->lang->line($line))) { @@ -706,7 +706,7 @@ class CI_Form_validation { } // -------------------------------------------------------------------- - + /** * Get the value from a form * @@ -717,19 +717,19 @@ class CI_Form_validation { * @param string the field name * @param string * @return void - */ + */ function set_value($field = '', $default = '') { if ( ! isset($this->_field_data[$field])) { return $default; } - + return $this->_field_data[$field]['postdata']; } - + // -------------------------------------------------------------------- - + /** * Set Select * @@ -740,9 +740,9 @@ class CI_Form_validation { * @param string * @param string * @return string - */ + */ function set_select($field = '', $value = '', $default = FALSE) - { + { if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) { if ($default === TRUE AND count($this->_field_data) === 0) @@ -751,9 +751,9 @@ class CI_Form_validation { } return ''; } - + $field = $this->_field_data[$field]['postdata']; - + if (is_array($field)) { if ( ! in_array($value, $field)) @@ -768,12 +768,12 @@ class CI_Form_validation { return ''; } } - + return ' selected="selected"'; } - + // -------------------------------------------------------------------- - + /** * Set Radio * @@ -784,7 +784,7 @@ class CI_Form_validation { * @param string * @param string * @return string - */ + */ function set_radio($field = '', $value = '', $default = FALSE) { if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) @@ -795,9 +795,9 @@ class CI_Form_validation { } return ''; } - + $field = $this->_field_data[$field]['postdata']; - + if (is_array($field)) { if ( ! in_array($value, $field)) @@ -812,12 +812,12 @@ class CI_Form_validation { return ''; } } - + return ' checked="checked"'; } - + // -------------------------------------------------------------------- - + /** * Set Checkbox * @@ -828,7 +828,7 @@ class CI_Form_validation { * @param string * @param string * @return string - */ + */ function set_checkbox($field = '', $value = '', $default = FALSE) { if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) @@ -839,9 +839,9 @@ class CI_Form_validation { } return ''; } - + $field = $this->_field_data[$field]['postdata']; - + if (is_array($field)) { if ( ! in_array($value, $field)) @@ -856,12 +856,12 @@ class CI_Form_validation { return ''; } } - + return ' checked="checked"'; } - + // -------------------------------------------------------------------- - + /** * Required * @@ -880,9 +880,9 @@ class CI_Form_validation { return ( ! empty($str)); } } - + // -------------------------------------------------------------------- - + /** * Match one field to another * @@ -895,16 +895,16 @@ class CI_Form_validation { { if ( ! isset($_POST[$field])) { - return FALSE; + return FALSE; } - + $field = $_POST[$field]; return ($str !== $field) ? FALSE : TRUE; } - + // -------------------------------------------------------------------- - + /** * Minimum Length * @@ -912,7 +912,7 @@ class CI_Form_validation { * @param string * @param value * @return bool - */ + */ function min_length($str, $val) { if (preg_match("/[^0-9]/", $val)) @@ -922,14 +922,14 @@ class CI_Form_validation { if (function_exists('mb_strlen')) { - return (mb_strlen($str) < $val) ? FALSE : TRUE; + return (mb_strlen($str) < $val) ? FALSE : TRUE; } - + return (strlen($str) < $val) ? FALSE : TRUE; } - + // -------------------------------------------------------------------- - + /** * Max Length * @@ -937,7 +937,7 @@ class CI_Form_validation { * @param string * @param value * @return bool - */ + */ function max_length($str, $val) { if (preg_match("/[^0-9]/", $val)) @@ -947,14 +947,14 @@ class CI_Form_validation { if (function_exists('mb_strlen')) { - return (mb_strlen($str) > $val) ? FALSE : TRUE; + return (mb_strlen($str) > $val) ? FALSE : TRUE; } - + return (strlen($str) > $val) ? FALSE : TRUE; } - + // -------------------------------------------------------------------- - + /** * Exact Length * @@ -962,7 +962,7 @@ class CI_Form_validation { * @param string * @param value * @return bool - */ + */ function exact_length($str, $val) { if (preg_match("/[^0-9]/", $val)) @@ -972,42 +972,42 @@ class CI_Form_validation { if (function_exists('mb_strlen')) { - return (mb_strlen($str) != $val) ? FALSE : TRUE; + return (mb_strlen($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) @@ -1015,12 +1015,12 @@ class CI_Form_validation { return FALSE; } } - + return TRUE; } // -------------------------------------------------------------------- - + /** * Validate IP Address * @@ -1034,56 +1034,56 @@ class CI_Form_validation { } // -------------------------------------------------------------------- - + /** * 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]+$/', $str); @@ -1092,72 +1092,72 @@ class CI_Form_validation { // -------------------------------------------------------------------- - /** - * Is Numeric - * - * @access public - * @param string - * @return bool - */ - function is_numeric($str) - { - return ( ! is_numeric($str)) ? FALSE : TRUE; - } + /** + * Is Numeric + * + * @access public + * @param string + * @return bool + */ + function is_numeric($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]+$/', $str); - } + /** + * Is a Natural number (0,1,2,3, etc.) + * + * @access public + * @param string + * @return bool + */ + function is_natural($str) + { + return (bool)preg_match( '/^[0-9]+$/', $str); + } // -------------------------------------------------------------------- - /** - * Is a Natural number, but not a zero (1,2,3, etc.) - * - * @access public - * @param string - * @return bool - */ + /** + * Is a Natural number, but not a zero (1,2,3, etc.) + * + * @access public + * @param string + * @return bool + */ function is_natural_no_zero($str) - { - if ( ! preg_match( '/^[0-9]+$/', $str)) - { - return FALSE; - } - - if ($str == 0) - { - return FALSE; - } - - return TRUE; - } - + { + if ( ! preg_match( '/^[0-9]+$/', $str)) + { + return FALSE; + } + + if ($str == 0) + { + return FALSE; + } + + return TRUE; + } + // -------------------------------------------------------------------- - + /** * Valid Base64 * @@ -1172,9 +1172,9 @@ class CI_Form_validation { { return (bool) ! preg_match('/[^a-zA-Z0-9\/\+=]/', $str); } - + // -------------------------------------------------------------------- - + /** * Prep data for form * @@ -1193,10 +1193,10 @@ class CI_Form_validation { { $data[$key] = $this->prep_for_form($val); } - + return $data; } - + if ($this->_safe_form_data == FALSE OR $data === '') { return $data; @@ -1204,54 +1204,54 @@ class CI_Form_validation { return str_replace(array("'", '"', '<', '>'), array("'", """, '<', '>'), stripslashes($data)); } - + // -------------------------------------------------------------------- - + /** * Prep URL * * @access public * @param string * @return string - */ + */ function prep_url($str = '') { if ($str == 'http://' OR $str == '') { return ''; } - + if (substr($str, 0, 7) != 'http://' && substr($str, 0, 8) != 'https://') { $str = 'http://'.$str; } - + return $str; } - + // -------------------------------------------------------------------- - + /** * Strip Image Tags * * @access public * @param string * @return string - */ + */ function strip_image_tags($str) { return $this->CI->input->strip_image_tags($str); } - + // -------------------------------------------------------------------- - + /** * XSS Clean * * @access public * @param string * @return string - */ + */ function xss_clean($str) { if ( ! isset($this->CI->security)) @@ -1261,16 +1261,16 @@ class CI_Form_validation { return $this->CI->security->xss_clean($str); } - + // -------------------------------------------------------------------- - + /** * Convert PHP tags to entities * * @access public * @param string * @return string - */ + */ function encode_php_tags($str) { return str_replace(array(''), array('<?php', '<?PHP', '<?', '?>'), $str); -- cgit v1.2.3-24-g4f1b From 741de1c1319dd13de75348863cca591713dd46ce Mon Sep 17 00:00:00 2001 From: Greg Aker