diff options
Diffstat (limited to 'system/libraries/Form_validation.php')
| -rw-r--r-- | system/libraries/Form_validation.php | 389 |
1 files changed, 211 insertions, 178 deletions
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php index ebd96e402..fc879ef10 100644 --- a/system/libraries/Form_validation.php +++ b/system/libraries/Form_validation.php @@ -2,7 +2,7 @@ /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP 5.2.4 or newer * * NOTICE OF LICENSE * @@ -25,8 +25,6 @@ * @filesource */ -// ------------------------------------------------------------------------ - /** * Form Validation Class * @@ -39,22 +37,32 @@ class CI_Form_validation { protected $CI; - protected $_field_data = array(); - protected $_config_rules = array(); - protected $_error_array = array(); - protected $_error_messages = array(); - protected $_error_prefix = '<p>'; - protected $_error_suffix = '</p>'; - protected $error_string = ''; - protected $_safe_form_data = FALSE; + protected $_field_data = array(); + protected $_config_rules = array(); + protected $_error_array = array(); + protected $_error_messages = array(); + protected $_error_prefix = '<p>'; + protected $_error_suffix = '</p>'; + protected $error_string = ''; + protected $_safe_form_data = FALSE; + protected $validation_data = array(); - /** - * Constructor - */ public function __construct($rules = array()) { $this->CI =& get_instance(); + // applies delimiters set in config file. + if (isset($rules['error_prefix'])) + { + $this->_error_prefix = $rules['error_prefix']; + unset($rules['error_prefix']); + } + if (isset($rules['error_suffix'])) + { + $this->_error_suffix = $rules['error_suffix']; + unset($rules['error_suffix']); + } + // Validation rules can be stored in a config file. $this->_config_rules = $rules; @@ -62,12 +70,12 @@ class CI_Form_validation { $this->CI->load->helper('form'); // Set the character encoding in MB. - if (function_exists('mb_internal_encoding')) + if (MB_ENABLED === TRUE) { mb_internal_encoding($this->CI->config->item('charset')); } - log_message('debug', "Form Validation Class Initialized"); + log_message('debug', 'Form Validation Class Initialized'); } // -------------------------------------------------------------------- @@ -80,34 +88,36 @@ class CI_Form_validation { * * @param mixed * @param string - * @return void + * @return object */ public function set_rules($field, $label = '', $rules = '') { // No reason to set rules if we have no POST data - if (count($_POST) === 0) + // or a validation array has not been specified + if ($this->CI->input->method() !== 'post' && empty($this->validation_data)) { return $this; } - // If an array was passed via the first parameter instead of indidual string + // If an array was passed via the first parameter instead of individual string // values we cycle through it and recursively call this function. if (is_array($field)) { foreach ($field as $row) { // Houston, we have a problem... - if ( ! isset($row['field']) OR ! isset($row['rules'])) + if ( ! isset($row['field'], $row['rules'])) { continue; } // If the field label wasn't passed we use the field name - $label = ( ! isset($row['label'])) ? $row['field'] : $row['label']; + $label = isset($row['label']) ? $row['label'] : $row['field']; // Here we go! $this->set_rules($row['field'], $label, $row['rules']); } + return $this; } @@ -162,14 +172,37 @@ class CI_Form_validation { // -------------------------------------------------------------------- /** + * By default, form validation uses the $_POST array to validate + * + * If an array is set through this method, then this array will + * be used instead of the $_POST array + * + * Note that if you are validating multiple arrays, then the + * reset_validation() function should be called after validating + * each array due to the limitations of CI's singleton + * + * @param array $data + * @return void + */ + public function set_data($data = '') + { + if ( ! empty($data) && is_array($data)) + { + $this->validation_data = $data; + } + } + + // -------------------------------------------------------------------- + + /** * Set Error Message * - * Lets users set their own error messages on the fly. Note: The key - * name has to match the function name that it corresponds to. + * Lets users set their own error messages on the fly. Note: + * The key name has to match the function name that it corresponds to. * + * @param array * @param string - * @param string - * @return string + * @return object */ public function set_message($lang, $val = '') { @@ -179,7 +212,6 @@ class CI_Form_validation { } $this->_error_messages = array_merge($this->_error_messages, $lang); - return $this; } @@ -192,13 +224,12 @@ class CI_Form_validation { * * @param string * @param string - * @return void + * @return object */ public function set_error_delimiters($prefix = '<p>', $suffix = '</p>') { $this->_error_prefix = $prefix; $this->_error_suffix = $suffix; - return $this; } @@ -210,11 +241,11 @@ class CI_Form_validation { * Gets the error message associated with a particular field * * @param string the field name - * @return void + * @return string */ public function error($field = '', $prefix = '', $suffix = '') { - if ( ! isset($this->_field_data[$field]['error']) OR $this->_field_data[$field]['error'] == '') + if (empty($this->_field_data[$field]['error'])) { return ''; } @@ -235,13 +266,27 @@ class CI_Form_validation { // -------------------------------------------------------------------- /** + * Get Array of Error Messages + * + * Returns the error messages as an array + * + * @return array + */ + public function error_array() + { + return $this->_error_array; + } + + // -------------------------------------------------------------------- + + /** * Error String * * Returns the error messages as a string, wrapped in the error delimiters * * @param string * @param string - * @return str + * @return string */ public function error_string($prefix = '', $suffix = '') { @@ -286,7 +331,8 @@ class CI_Form_validation { public function run($group = '') { // Do we even have any data to process? Mm? - if (count($_POST) === 0) + $validation_array = empty($this->validation_data) ? $_POST : $this->validation_data; + if (count($validation_array) === 0) { return FALSE; } @@ -304,7 +350,7 @@ class CI_Form_validation { // 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])) + if ($uri != '' && isset($this->_config_rules[$uri])) { $this->set_rules($this->_config_rules[$uri]); } @@ -313,10 +359,10 @@ class CI_Form_validation { $this->set_rules($this->_config_rules); } - // We're we able to set the rules correctly? + // Were we able to set the rules correctly? if (count($this->_field_data) === 0) { - log_message('debug', "Unable to find validation rules"); + log_message('debug', 'Unable to find validation rules'); return FALSE; } } @@ -328,19 +374,15 @@ class CI_Form_validation { // 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. + // Fetch the data from the corresponding $_POST or validation array and cache it in the _field_data array. // Depending on whether the field name is an array or a string will determine where we get it from. - if ($row['is_array'] === TRUE) { - $this->_field_data[$field]['postdata'] = $this->_reduce_array($_POST, $row['keys']); + $this->_field_data[$field]['postdata'] = $this->_reduce_array($validation_array, $row['keys']); } - else + elseif ( ! empty($validation_array[$field])) { - if (isset($_POST[$field]) AND $_POST[$field] != "") - { - $this->_field_data[$field]['postdata'] = $_POST[$field]; - } + $this->_field_data[$field]['postdata'] = $validation_array[$field]; } $this->_execute($row, explode('|', $row['rules']), $this->_field_data[$field]['postdata']); @@ -348,7 +390,6 @@ class CI_Form_validation { // Did we end up with any errors? $total_errors = count($this->_error_array); - if ($total_errors > 0) { $this->_safe_form_data = TRUE; @@ -367,7 +408,7 @@ class CI_Form_validation { * * @param array * @param array - * @param integer + * @param int * @return mixed */ protected function _reduce_array($array, $keys, $i = 0) @@ -385,7 +426,7 @@ class CI_Form_validation { /** * Re-populate the _POST array with our finalized and processed data * - * @return null + * @return void */ protected function _reset_post_array() { @@ -445,7 +486,7 @@ class CI_Form_validation { * @param array * @param array * @param mixed - * @param integer + * @param int * @return mixed */ protected function _execute($row, $rules, $postdata = NULL, $cycles = 0) @@ -462,17 +503,15 @@ class CI_Form_validation { 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)) + if ( ! in_array('required', $rules) && is_null($postdata)) { // Before we bail out, does the rule contain a callback? - if (preg_match("/(callback_\w+(\[.*?\])?)/", implode(' ', $rules), $match)) + if (preg_match('/(callback_\w+(\[.*?\])?)/', implode(' ', $rules), $match)) { $callback = TRUE; - $rules = (array('1' => $match[1])); + $rules = array(1 => $match[1]); } else { @@ -480,15 +519,13 @@ class CI_Form_validation { } } - // -------------------------------------------------------------------- - // Isset Test. Typically this rule will only apply to checkboxes. - if (is_null($postdata) AND $callback === FALSE) + if (is_null($postdata) && $callback === FALSE) { if (in_array('isset', $rules, TRUE) OR in_array('required', $rules)) { // Set the message type - $type = (in_array('required', $rules)) ? 'required' : 'isset'; + $type = in_array('required', $rules) ? 'required' : 'isset'; if ( ! isset($this->_error_messages[$type])) { @@ -520,13 +557,13 @@ class CI_Form_validation { // -------------------------------------------------------------------- // Cycle through each rule and run it - foreach ($rules As $rule) + foreach ($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'])) + if ($row['is_array'] == TRUE && is_array($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 @@ -543,11 +580,9 @@ class CI_Form_validation { $postdata = $this->_field_data[$row['field']]['postdata']; } - // -------------------------------------------------------------------- - // Is the rule a callback? $callback = FALSE; - if (substr($rule, 0, 9) == 'callback_') + if (strpos($rule, 'callback_') === 0) { $rule = substr($rule, 9); $callback = TRUE; @@ -556,7 +591,7 @@ class CI_Form_validation { // Strip the parameter (if exists) from the rule // Rules can contain a parameter: max_length[5] $param = FALSE; - if (preg_match("/(.*?)\[(.*)\]/", $rule, $match)) + if (preg_match('/(.*?)\[(.*)\]/', $rule, $match)) { $rule = $match[1]; $param = $match[2]; @@ -567,68 +602,69 @@ class CI_Form_validation { { if ( ! method_exists($this->CI, $rule)) { - continue; + log_message('debug', 'Unable to find callback validation rule: '.$rule); + $result = FALSE; + } + else + { + // Run the function and grab the result + $result = $this->CI->$rule($postdata, $param); } - - // 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; + $this->_field_data[$row['field']]['postdata'][$cycles] = is_bool($result) ? $postdata : $result; } else { - $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; + $this->_field_data[$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) + if ( ! in_array('required', $rules, TRUE) && $result !== FALSE) { continue; } } - else + elseif ( ! method_exists($this, $rule)) { - if ( ! method_exists($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)) { - // 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); + $result = ($param !== FALSE) ? $rule($postdata, $param) : $rule($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 : $result; - } + if ($_in_array === TRUE) + { + $this->_field_data[$row['field']]['postdata'][$cycles] = is_bool($result) ? $postdata : $result; } else { - log_message('debug', "Unable to find validation rule: ".$rule); + $this->_field_data[$row['field']]['postdata'] = is_bool($result) ? $postdata : $result; } - - continue; } - + else + { + log_message('debug', 'Unable to find validation rule: '.$rule); + $result = FALSE; + } + } + else + { $result = $this->$rule($postdata, $param); if ($_in_array === TRUE) { - $this->_field_data[$row['field']]['postdata'][$cycles] = (is_bool($result)) ? $postdata : $result; + $this->_field_data[$row['field']]['postdata'][$cycles] = is_bool($result) ? $postdata : $result; } else { - $this->_field_data[$row['field']]['postdata'] = (is_bool($result)) ? $postdata : $result; + $this->_field_data[$row['field']]['postdata'] = is_bool($result) ? $postdata : $result; } } - // Did the rule test negatively? If so, grab the error. + // Did the rule test negatively? If so, grab the error. if ($result === FALSE) { if ( ! isset($this->_error_messages[$rule])) @@ -644,7 +680,7 @@ class CI_Form_validation { } // Is the parameter we are inserting into the error message the name - // of another field? If so we need to grab its "field label" + // of another field? If so we need to grab its "field label" if (isset($this->_field_data[$param], $this->_field_data[$param]['label'])) { $param = $this->_translate_fieldname($this->_field_data[$param]['label']); @@ -678,7 +714,7 @@ class CI_Form_validation { { // Do we need to translate the field name? // We look for the prefix lang: to determine this - if (substr($fieldname, 0, 5) === 'lang:') + if (strpos($fieldname, 'lang:') === 0) { // Grab the variable $line = substr($fieldname, 5); @@ -724,11 +760,11 @@ class CI_Form_validation { * * @param string the field name * @param string - * @return void + * @return string */ public function set_value($field = '', $default = '') { - if ( ! isset($this->_field_data[$field])) + if ( ! isset($this->_field_data[$field], $this->_field_data[$field]['postdata'])) { return $default; } @@ -757,17 +793,12 @@ class CI_Form_validation { */ public function set_select($field = '', $value = '', $default = FALSE) { - if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) + if ( ! isset($this->_field_data[$field], $this->_field_data[$field]['postdata'])) { - if ($default === TRUE AND count($this->_field_data) === 0) - { - return ' selected="selected"'; - } - return ''; + return ($default === TRUE && count($this->_field_data) === 0) ? ' selected="selected"' : ''; } $field = $this->_field_data[$field]['postdata']; - if (is_array($field)) { if ( ! in_array($value, $field)) @@ -775,12 +806,9 @@ class CI_Form_validation { return ''; } } - else + elseif (($field == '' OR $value == '') OR ($field != $value)) { - if (($field == '' OR $value == '') OR ($field != $value)) - { - return ''; - } + return ''; } return ' selected="selected"'; @@ -800,17 +828,12 @@ class CI_Form_validation { */ public function set_radio($field = '', $value = '', $default = FALSE) { - if ( ! isset($this->_field_data[$field]) OR ! isset($this->_field_data[$field]['postdata'])) + if ( ! isset($this->_field_data[$field], $this->_field_data[$field]['postdata'])) { - if ($default === TRUE AND count($this->_field_data) === 0) - { - return ' checked="checked"'; - } - return ''; + return ($default === TRUE && count($this->_field_data) === 0) ? ' checked="checked"' : ''; } $field = $this->_field_data[$field]['postdata']; - if (is_array($field)) { if ( ! in_array($value, $field)) @@ -818,12 +841,9 @@ class CI_Form_validation { return ''; } } - else + elseif (($field == '' OR $value == '') OR ($field != $value)) { - if (($field == '' OR $value == '') OR ($field != $value)) - { - return ''; - } + return ''; } return ' checked="checked"'; @@ -857,7 +877,7 @@ class CI_Form_validation { */ public function required($str) { - return ( ! is_array($str)) ? (trim($str) !== '') : ( ! empty($str)); + return is_array($str) ? (bool) count($str) : (trim($str) !== ''); } // -------------------------------------------------------------------- @@ -866,7 +886,7 @@ class CI_Form_validation { * Performs a Regular Expression match test. * * @param string - * @param regex + * @param string regex * @return bool */ public function regex_match($str, $regex) @@ -880,19 +900,18 @@ class CI_Form_validation { * Match one field to another * * @param string - * @param field + * @param string field * @return bool */ public function matches($str, $field) { - if ( ! isset($_POST[$field])) + $validation_array = empty($this->validation_data) ? $_POST : $this->validation_data; + if ( ! isset($validation_array[$field])) { return FALSE; } - $field = $_POST[$field]; - - return ($str === $field); + return ($str === $validation_array[$field]); } // -------------------------------------------------------------------- @@ -904,7 +923,7 @@ class CI_Form_validation { * in the specified database field. * * @param string - * @param field + * @param string field * @return bool */ public function is_unique($str, $field) @@ -924,22 +943,19 @@ class CI_Form_validation { * Minimum Length * * @param string - * @param value + * @param int * @return bool */ public function min_length($str, $val) { - if (preg_match("/[^0-9]/", $val)) + if (preg_match('/[^0-9]/', $val)) { return FALSE; } - if (function_exists('mb_strlen')) - { - return ! (mb_strlen($str) < $val); - } - - return ! (strlen($str) < $val); + return (MB_ENABLED === TRUE) + ? ($val <= mb_strlen($str)) + : ($val <= strlen(str)); } // -------------------------------------------------------------------- @@ -948,22 +964,19 @@ class CI_Form_validation { * Max Length * * @param string - * @param value + * @param int * @return bool */ public function max_length($str, $val) { - if (preg_match("/[^0-9]/", $val)) + if (preg_match('/[^0-9]/', $val)) { return FALSE; } - if (function_exists('mb_strlen')) - { - return ! (mb_strlen($str) > $val); - } - - return ! (strlen($str) > $val); + return (MB_ENABLED === TRUE) + ? ($val >= mb_strlen($str)) + : ($val >= strlen($str)); } // -------------------------------------------------------------------- @@ -972,22 +985,19 @@ class CI_Form_validation { * Exact Length * * @param string - * @param value + * @param int * @return bool */ public function exact_length($str, $val) { - if (preg_match("/[^0-9]/", $val)) + if (preg_match('/[^0-9]/', $val)) { return FALSE; } - if (function_exists('mb_strlen')) - { - return (mb_strlen($str) == $val); - } - - return (strlen($str) == $val); + return (MB_ENABLED === TRUE) + ? (mb_strlen($str) == $val) + : (strlen($str) == $val); } // -------------------------------------------------------------------- @@ -1098,57 +1108,53 @@ class CI_Form_validation { // -------------------------------------------------------------------- /** - * Is Numeric + * Integer * * @param string * @return bool */ - public function is_numeric($str) + public function integer($str) { - return is_numeric($str); + return (bool) preg_match('/^[\-+]?[0-9]+$/', $str); } // -------------------------------------------------------------------- /** - * Integer + * Decimal number * * @param string * @return bool */ - public function integer($str) + public function decimal($str) { - return (bool) preg_match('/^[\-+]?[0-9]+$/', $str); + return (bool) preg_match('/^[\-+]?[0-9]+\.[0-9]+$/', $str); } // -------------------------------------------------------------------- /** - * Decimal number + * Greater than * * @param string * @return bool */ - public function decimal($str) + public function greater_than($str, $min) { - return (bool) preg_match('/^[\-+]?[0-9]+\.[0-9]+$/', $str); + return is_numeric($str) ? ($str > $min) : FALSE; } // -------------------------------------------------------------------- /** - * Greather than + * Equal to or Greater than * * @param string * @return bool */ - public function greater_than($str, $min) + public function greater_than_equal_to($str, $min) { - if ( ! is_numeric($str)) - { - return FALSE; - } - return $str > $min; + return is_numeric($str) ? ($str >= $min) : FALSE; } // -------------------------------------------------------------------- @@ -1161,11 +1167,20 @@ class CI_Form_validation { */ public function less_than($str, $max) { - if ( ! is_numeric($str)) - { - return FALSE; - } - return $str < $max; + return is_numeric($str) ? ($str < $max) : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Equal to or Less than + * + * @param string + * @return bool + */ + public function less_than_equal_to($str, $max) + { + return is_numeric($str) ? ($str <= $max) : FALSE; } // -------------------------------------------------------------------- @@ -1191,7 +1206,7 @@ class CI_Form_validation { */ public function is_natural_no_zero($str) { - return ($str != 0 AND preg_match('/^[0-9]+$/', $str)); + return ($str != 0 && preg_match('/^[0-9]+$/', $str)); } // -------------------------------------------------------------------- @@ -1238,7 +1253,7 @@ class CI_Form_validation { return $data; } - return str_replace(array("'", '"', '<', '>'), array("'", """, '<', '>'), stripslashes($data)); + return str_replace(array("'", '"', '<', '>'), array(''', '"', '<', '>'), stripslashes($data)); } // -------------------------------------------------------------------- @@ -1251,14 +1266,14 @@ class CI_Form_validation { */ public function prep_url($str = '') { - if ($str == 'http://' OR $str == '') + if ($str === 'http://' OR $str == '') { return ''; } - if (substr($str, 0, 7) !== 'http://' && substr($str, 0, 8) !== 'https://') + if (strpos($str, 'http://') !== 0 && strpos($str, 'https://') !== 0) { - $str = 'http://'.$str; + return 'http://'.$str; } return $str; @@ -1303,8 +1318,26 @@ class CI_Form_validation { return str_replace(array('<?php', '<?PHP', '<?', '?>'), array('<?php', '<?PHP', '<?', '?>'), $str); } + // -------------------------------------------------------------------- + + /** + * Reset validation vars + * + * Prevents subsequent validation routines from being affected by the + * results of any previous validation routine due to the CI singleton. + * + * @return void + */ + public function reset_validation() + { + $this->_field_data = array(); + $this->_config_rules = array(); + $this->_error_array = array(); + $this->_error_messages = array(); + $this->error_string = ''; + } + } -// END Form Validation Class /* End of file Form_validation.php */ /* Location: ./system/libraries/Form_validation.php */ |