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<?php
namespace mp_timetable\classes\libs;
/**
* GUMP - A fast, extensible PHP input validation class.
*
* @author Sean Nieuwoudt (http://twitter.com/SeanNieuwoudt)
* @copyright Copyright (c) 2015 wixelhq.com
*
* @link http://github.com/Wixel/GUMP
*
* @version 1.0
*/
class GUMP {
// Validation rules for execution
protected $validation_rules = array();
// Filter rules for execution
protected $filter_rules = array();
// Instance attribute containing errors from last run
protected $errors = array();
// Contain readable field names that have been set manually
protected static $fields = array();
// Custom validation methods
protected static $validation_methods = array();
// Customer filter methods
protected static $filter_methods = array();
// ** ------------------------- Validation Data ------------------------------- ** //
public static $basic_tags = '<br><p><a><strong><b><i><em><img><blockquote><code><dd><dl><hr><h1><h2><h3><h4><h5><h6><label><ul><li><span><sub><sup>';
public static $en_noise_words = "about,after,all,also,an,and,another,any,are,as,at,be,because,been,before,
being,between,both,but,by,came,can,come,could,did,do,each,for,from,get,
got,has,had,he,have,her,here,him,himself,his,how,if,in,into,is,it,its,it's,like,
make,many,me,might,more,most,much,must,my,never,now,of,on,only,or,other,
our,out,over,said,same,see,should,since,some,still,such,take,than,that,
the,their,them,then,there,these,they,this,those,through,to,too,under,up,
very,was,way,we,well,were,what,where,which,while,who,with,would,you,your,a,
b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,$,1,2,3,4,5,6,7,8,9,0,_";
// field characters below will be replaced with a space.
protected $fieldCharsToRemove = array('_', '-');
// ** ------------------------- Validation Helpers ---------------------------- ** //
/**
* Shorthand method for inline validation.
*
* @param array $data The data to be validated
* @param array $validators The GUMP validators
*
* @return mixed True(boolean) or the array of error messages
*/
public static function is_valid(array $data, array $validators) {
$gump = new self();
$gump->validation_rules($validators);
if ($gump->run($data) === false) {
return $gump->get_readable_errors(false);
} else {
return true;
}
}
/**
* Shorthand method for running only the data filters.
*
* @param array $data
* @param array $filters
*
* @return mixed
*/
public static function filter_input(array $data, array $filters) {
$gump = new self();
return $gump->filter($data, $filters);
}
/**
* Magic method to generate the validation error messages.
*
* @return string
*/
public function __toString() {
return $this->get_readable_errors(true);
}
/**
* Perform XSS clean to prevent cross site scripting.
*
* @static
*
* @param array $data
*
* @return array
*/
public static function xss_clean(array $data) {
foreach ($data as $k => $v) {
$data[$k] = filter_var($v, FILTER_SANITIZE_STRING);
}
return $data;
}
/**
* Adds a custom validation rule using a callback function.
*
* @param string $rule
* @param callable $callback
*
* @return bool
*
* @throws Exception
*/
public static function add_validator($rule, $callback) {
$method = 'validate_' . $rule;
if (method_exists(__CLASS__, $method) || isset(self::$validation_methods[$rule])) {
throw new Exception("Validator rule '$rule' already exists.");
}
self::$validation_methods[$rule] = $callback;
return true;
}
/**
* Adds a custom filter using a callback function.
*
* @param string $rule
* @param callable $callback
*
* @return bool
*
* @throws Exception
*/
public static function add_filter($rule, $callback) {
$method = 'filter_' . $rule;
if (method_exists(__CLASS__, $method) || isset(self::$filter_methods[$rule])) {
throw new Exception("Filter rule '$rule' already exists.");
}
self::$filter_methods[$rule] = $callback;
return true;
}
/**
* Helper method to extract an element from an array safely
*
* @param mixed $key
* @param array $array
* @param mixed $default
*
* @return mixed
*/
public static function field($key, array $array, $default = null) {
if (!is_array($array)) {
return null;
}
if (isset($array[$key])) {
return $array[$key];
} else {
return $default;
}
}
/**
* Getter/Setter for the validation rules.
*
* @param array $rules
*
* @return array
*/
public function validation_rules(array $rules = array()) {
if (empty($rules)) {
return $this->validation_rules;
}
$this->validation_rules = $rules;
}
/**
* Getter/Setter for the filter rules.
*
* @param array $rules
*
* @return array
*/
public function filter_rules(array $rules = array()) {
if (empty($rules)) {
return $this->filter_rules;
}
$this->filter_rules = $rules;
}
/**
* Run the filtering and validation after each other.
*
* @param array $data
* @param bool $check_fields
*
* @return array
*
* @throws Exception
*/
public function run(array $data, $check_fields = false) {
$data = $this->filter($data, $this->filter_rules());
$validated = $this->validate(
$data, $this->validation_rules()
);
if ($check_fields === true) {
$this->check_fields($data);
}
if ($validated !== true) {
return false;
}
return $data;
}
/**
* Ensure that the field counts match the validation rule counts.
*
* @param array $data
*/
private function check_fields(array $data) {
$ruleset = $this->validation_rules();
$mismatch = array_diff_key($data, $ruleset);
$fields = array_keys($mismatch);
foreach ($fields as $field) {
$this->errors[] = array(
'field' => $field,
'value' => $data[$field],
'rule' => 'mismatch',
'param' => null,
);
}
}
/**
* Sanitize the input data.
*
* @param array $input
* @param null $fields
* @param bool $utf8_encode
*
* @return array
*/
public function sanitize(array $input, array $fields = array(), $utf8_encode = true) {
$magic_quotes = (bool)get_magic_quotes_gpc();
if (empty($fields)) {
$fields = array_keys($input);
}
$return = array();
foreach ($fields as $field) {
if (!isset($input[$field])) {
continue;
} else {
$value = $input[$field];
if (is_array($value)) {
$value = null;
}
if (is_string($value)) {
if ($magic_quotes === true) {
$value = stripslashes($value);
}
if (strpos($value, "\r") !== false) {
$value = trim($value);
}
if (function_exists('iconv') && function_exists('mb_detect_encoding') && $utf8_encode) {
$current_encoding = mb_detect_encoding($value);
if ($current_encoding != 'UTF-8' && $current_encoding != 'UTF-16') {
$value = iconv($current_encoding, 'UTF-8', $value);
}
}
$value = filter_var($value, FILTER_SANITIZE_STRING);
}
$return[$field] = $value;
}
}
return $return;
}
/**
* Return the error array from the last validation run.
*
* @return array
*/
public function errors() {
return $this->errors;
}
/**
* Perform data validation against the provided ruleset.
*
* @param mixed $input
* @param array $ruleset
*
* @return mixed
*
* @throws Exception
*/
public function validate(array $input, array $ruleset) {
$this->errors = array();
foreach ($ruleset as $field => $rules) {
$rules = explode('|', $rules);
if (in_array('required', $rules) || (isset($input[$field]) && !is_array($input[$field]))) {
foreach ($rules as $rule) {
$method = null;
$param = null;
// Check if we have rule parameters
if (strstr($rule, ',') !== false) {
$rule = explode(',', $rule);
$method = 'validate_' . $rule[0];
$param = $rule[1];
$rule = $rule[0];
} else {
$method = 'validate_' . $rule;
}
//self::$validation_methods[$rule] = $callback;
if (is_callable(array($this, $method))) {
$result = $this->$method(
$field, $input, $param
);
if (is_array($result)) {
$this->errors[] = $result;
}
} elseif (isset(self::$validation_methods[$rule])) {
$result = call_user_func(self::$validation_methods[$rule], $field, $input, $param);
if ($result === false) {
$this->errors[] = array(
'field' => $field,
'value' => $input,
'rule' => self::$validation_methods[$rule],
'param' => $param,
);
}
} else {
throw new Exception("Validator method '$method' does not exist.");
}
}
}
}
return (count($this->errors) > 0) ? $this->errors : true;
}
/**
* Overloadable method to invoke validation.
*
* @param array $input
* @param $rules
* @param $field
*
* @return bool
*/
protected function shouldRunValidation(array $input, $rules, $field) {
return in_array('required', $rules) || (isset($input[$field]) && trim($input[$field]) != '');
}
/**
* Set a readable name for a specified field names.
*
* @param string $field
* @param string $readable_name
*/
public static function set_field_name($field, $readable_name) {
self::$fields[$field] = $readable_name;
}
/**
* Set readable name for specified fields in an array.
*
* Usage:
*
* GUMP::set_field_names(array(
* "name" => "My Lovely Name",
* "username" => "My Beloved Username",
* ));
*
* @param array $array
*/
public static function set_field_names(array $array) {
foreach ($array as $field => $readable_name) {
self::$fields[$field] = $readable_name;
}
}
/**
* Process the validation errors and return human readable error messages.
*
* @param bool $convert_to_string = false
* @param string $field_class
* @param string $error_class
*
* @return array
* @return string
*/
public function get_readable_errors($convert_to_string = false, $field_class = 'gump-field', $error_class = 'gump-error-message') {
if (empty($this->errors)) {
return ($convert_to_string) ? null : array();
}
$resp = array();
foreach ($this->errors as $e) {
$field = ucwords(str_replace($this->fieldCharsToRemove, chr(32), $e['field']));
$param = $e['param'];
// Let's fetch explicit field names if they exist
if (array_key_exists($e['field'], self::$fields)) {
$field = self::$fields[$e['field']];
}
switch ($e['rule']) {
case 'mismatch' :
$resp[] = sprintf( 'There is no validation rule for <span class="%1$s">%2$s</span>', $field_class, $field );
break;
case 'validate_required' :
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field is required', $field_class, $field );
break;
case 'validate_valid_email':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field is required to be a valid email address', $field_class, $field );
break;
case 'validate_max_len':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to be %d or shorter in length', $field_class, $field, $param );
break;
case 'validate_min_len':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to be %d or longer in length', $field_class, $field, $param );
break;
case 'validate_exact_len':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to be exactly %d characters in length', $field_class, $field, $param );
break;
case 'validate_alpha':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field may only contain alpha characters(a-z)', $field_class, $field );
break;
case 'validate_alpha_numeric':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field may only contain alpha-numeric characters', $field_class, $field );
break;
case 'validate_alpha_dash':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field may only contain alpha characters & dashes', $field_class, $field );
break;
case 'validate_numeric':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field may only contain numeric characters', $field_class, $field );
break;
case 'validate_integer':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field may only contain a numeric value', $field_class, $field );
break;
case 'validate_boolean':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field may only contain a true or false value', $field_class, $field );
break;
case 'validate_float':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field may only contain a float value', $field_class, $field );
break;
case 'validate_valid_url':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field is required to be a valid URL', $field_class, $field );
break;
case 'validate_url_exists':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> URL does not exist', $field_class, $field );
break;
case 'validate_valid_ip':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to contain a valid IP address', $field_class, $field );
break;
case 'validate_valid_cc':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to contain a valid credit card number', $field_class, $field );
break;
case 'validate_valid_name':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to contain a valid human name', $field_class, $field );
break;
case 'validate_contains':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to contain one of these values:', $field_class, $field ) . ' ' . implode(', ', $param);
break;
case 'validate_contains_list':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs contain a value from its drop down list', $field_class, $field );
break;
case 'validate_doesnt_contain_list':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field contains a value that is not accepted', $field_class, $field );
break;
case 'validate_street_address':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to be a valid street address', $field_class, $field );
break;
case 'validate_date':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to be a valid date', $field_class, $field );
break;
case 'validate_min_numeric':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to be a numeric value, equal to, or higher than', $field_class, $field ) . $param;
break;
case 'validate_max_numeric':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to be a numeric value, equal to, or lower than', $field_class, $field ) . ' ' . $param;
break;
case 'validate_starts':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to start with', $field_class, $field ) . ' ' . $param;
break;
case 'validate_extension':
$resp[] = sprintf( 'The <span class"%1$s">%2$s</span> field can have the following extensions', $field_class, $field ) . ' '. $param;
break;
case 'validate_required_file':
$resp[] = sprintf( 'The <span class"%1$s">%2$s</span> field is required', $field_class, $field ) .' ' . $param;
break;
case 'validate_equalsfield':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field does not equal %d field', $field_class, $field, $param ) ;
break;
case 'validate_min_age':
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field needs to have an age greater than or equal to', $field_class, $field ) . ' '. $param;;
break;
default:
$resp[] = sprintf( 'The <span class="%1$s">%2$s</span> field is invalid', $field_class, $field );
}
}
if (!$convert_to_string) {
return $resp;
} else {
$buffer = '';
foreach ($resp as $s) {
$buffer .= "<span class=\"$error_class\">$s</span>";
}
return $buffer;
}
}
/**
* Process the validation errors and return an array of errors with field names as keys.
*
* @param $convert_to_string
*
* @return array | null (if empty)
*/
public function get_errors_array($convert_to_string = null) {
if (empty($this->errors)) {
return ($convert_to_string) ? null : array();
}
$resp = array();
foreach ($this->errors as $e) {
$field = ucwords(str_replace(array('_', '-'), chr(32), $e['field']));
$param = $e['param'];
// Let's fetch explicit field names if they exist
if (array_key_exists($e['field'], self::$fields)) {
$field = self::$fields[$e['field']];
}
switch ($e['rule']) {
case 'mismatch' :
$resp[$field] = 'There is no validation rule for' . ' ' . $field;
break;
case 'validate_required':
$resp[$field] = sprintf( 'The %s field is required', $field);
break;
case 'validate_valid_email':
$resp[$field] = sprintf( 'The %s field is required to be a valid email address', $field);
break;
case 'validate_max_len':
$resp[$field] = sprintf( 'The %s field needs to be %d or shorter in length', $field, $param);
break;
case 'validate_min_len':
$resp[$field] = sprintf( 'The %s field needs to be %d or longer in length', $field, $param);
break;
case 'validate_exact_len':
$resp[$field] = sprintf( 'The %s field needs to be exactly %d characters in length', $field, $param);
break;
case 'validate_alpha':
$resp[$field] = sprintf( 'The %s field may only contain alpha characters(a-z)', $field);
break;
case 'validate_alpha_numeric':
$resp[$field] = sprintf( 'The %s field may only contain alpha-numeric characters', $field);
break;
case 'validate_alpha_dash':
$resp[$field] = sprintf( 'The %s field may only contain alpha characters & dashes', $field);
break;
case 'validate_numeric':
$resp[$field] = sprintf( 'The %s field may only contain numeric characters', $field);
break;
case 'validate_integer':
$resp[$field] = sprintf( 'The %s field may only contain a numeric value', $field);
break;
case 'validate_boolean':
$resp[$field] = sprintf( 'The %s field may only contain a true or false value', $field);
break;
case 'validate_float':
$resp[$field] = sprintf( 'The %s field may only contain a float value', $field);
break;
case 'validate_valid_url':
$resp[$field] = sprintf( 'The %s field is required to be a valid URL', $field);
break;
case 'validate_url_exists':
$resp[$field] = sprintf( 'The %s URL does not exist', $field);
break;
case 'validate_valid_ip':
$resp[$field] = sprintf( 'The %s field needs to contain a valid IP address', $field);
break;
case 'validate_valid_cc':
$resp[$field] = sprintf( 'The %s field needs to contain a valid credit card number', $field);
break;
case 'validate_valid_name':
$resp[$field] = sprintf( 'The %s field needs to contain a valid human name', $field);
break;
case 'validate_contains':
$resp[$field] = sprintf( 'The %s field needs to contain one of these values:', $field) . ' ' . implode(', ', $param);
break;
case 'validate_street_address':
$resp[$field] = sprintf( 'The %s field needs to be a valid street address', $field);
break;
case 'validate_date':
$resp[$field] = sprintf( 'The %s field needs to be a valid date', $field);
break;
case 'validate_min_numeric':
$resp[$field] = sprintf( 'The %s field needs to be a numeric value, equal to, or higher than %d', $field, $param);
break;
case 'validate_max_numeric':
$resp[$field] = sprintf( 'The %s field needs to be a numeric value, equal to, or lower than %d', $field, $param);
break;
case 'validate_min_age':
$resp[$field] = sprintf( 'The %s field needs to have an age greater than or equal to %d', $field, $param);
break;
default:
$resp[$field] = sprintf( 'The %s field is invalid', $field );
}
}
return $resp;
}
/**
* Filter the input data according to the specified filter set.
*
* @param mixed $input
* @param array $filterset
*
* @throws Exception
*
* @return mixed
*
* @throws Exception
*/
public function filter(array $input, array $filterset) {
foreach ($filterset as $field => $filters) {
if (!array_key_exists($field, $input)) {
continue;
}
$filters = explode('|', $filters);
foreach ($filters as $filter) {
$params = null;
if (strstr($filter, ',') !== false) {
$filter = explode(',', $filter);
$params = array_slice($filter, 1, count($filter) - 1);
$filter = $filter[0];
}
if (is_callable(array($this, 'filter_' . $filter))) {
$method = 'filter_' . $filter;
$input[$field] = $this->$method($input[$field], $params);
} elseif (function_exists($filter)) {
$input[$field] = $filter($input[$field]);
} elseif (isset(self::$filter_methods[$filter])) {
$input[$field] = call_user_func(self::$filter_methods[$filter], $input[$field], $params);
} else {
throw new Exception("Filter method '$filter' does not exist.");
}
}
}
return $input;
}
// ** ------------------------- Filters --------------------------------------- ** //
/**
* Replace noise words in a string (http://tax.cchgroup.com/help/Avoiding_noise_words_in_your_search.htm).
*
* Usage: '<index>' => 'noise_words'
*
* @param string $value
* @param array $params
*
* @return string
*/
protected function filter_noise_words($value, $params = null) {
$value = preg_replace('/\s\s+/u', chr(32), $value);
$value = " $value ";
$words = explode(',', self::$en_noise_words);
foreach ($words as $word) {
$word = trim($word);
$word = " $word "; // Normalize
if (stripos($value, $word) !== false) {
$value = str_ireplace($word, chr(32), $value);
}
}
return trim($value);
}
/**
* Remove all known punctuation from a string.
*
* Usage: '<index>' => 'rmpunctuataion'
*
* @param string $value
* @param array $params
*
* @return string
*/
protected function filter_rmpunctuation($value, $params = null) {
return preg_replace("/(?![.=$'€%-])\p{P}/u", '', $value);
}
/**
* Translate an input string to a desired language [DEPRECIATED].
*
* Any ISO 639-1 2 character language code may be used
*
* See: http://www.science.co.il/language/Codes.asp?s=code2
*
* @param string $value
* @param array $params
*
* @return string
*/
/*
protected function filter_translate($value, $params = NULL)
{
$input_lang = 'en';
$output_lang = 'en';
if(is_null($params))
{
return $value;
}
switch(count($params))
{
case 1:
$input_lang = $params[0];
break;
case 2:
$input_lang = $params[0];
$output_lang = $params[1];
break;
}
$text = urlencode($value);
$translation = file_get_contents(
"http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q={$text}&langpair={$input_lang}|{$output_lang}"
);
$json = json_decode($translation, true);
if($json['responseStatus'] != 200)
{
return $value;
}
else
{
return $json['responseData']['translatedText'];
}
}
*/
/**
* Sanitize the string by removing any script tags.
*
* Usage: '<index>' => 'sanitize_string'
*
* @param string $value
* @param array $params
*
* @return string
*/
protected function filter_sanitize_string($value, $params = null) {
return filter_var($value, FILTER_SANITIZE_STRING);
}
/**
* Sanitize the string by urlencoding characters.
*
* Usage: '<index>' => 'urlencode'
*
* @param string $value
* @param array $params
*
* @return string
*/
protected function filter_urlencode($value, $params = null) {
return filter_var($value, FILTER_SANITIZE_ENCODED);
}
/**
* Sanitize the string by converting HTML characters to their HTML entities.
*
* Usage: '<index>' => 'htmlencode'
*
* @param string $value
* @param array $params
*
* @return string
*/
protected function filter_htmlencode($value, $params = null) {
return filter_var($value, FILTER_SANITIZE_SPECIAL_CHARS);
}
/**
* Sanitize the string by removing illegal characters from emails.
*
* Usage: '<index>' => 'sanitize_email'
*
* @param string $value
* @param array $params
*
* @return string
*/
protected function filter_sanitize_email($value, $params = null) {
return filter_var($value, FILTER_SANITIZE_EMAIL);
}
/**
* Sanitize the string by removing illegal characters from numbers.
*
* @param string $value
* @param array $params
*
* @return string
*/
protected function filter_sanitize_numbers($value, $params = null) {
return filter_var($value, FILTER_SANITIZE_NUMBER_INT);
}
/**
* Filter out all HTML tags except the defined basic tags.
*
* @param string $value
* @param array $params
*
* @return string
*/
protected function filter_basic_tags($value, $params = null) {
return strip_tags($value, self::$basic_tags);
}
/**
* Convert the provided numeric value to a whole number.
*
* @param string $value
* @param array $params
*
* @return string
*/
protected function filter_whole_number($value, $params = null) {
return intval($value);
}
// ** ------------------------- Validators ------------------------------------ ** //
/**
* Verify that a value is contained within the pre-defined value set.
*
* Usage: '<index>' => 'contains,value value value'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_contains($field, $input, $param = null) {
if (!isset($input[$field])) {
return;
}
$param = trim(strtolower($param));
$value = trim(strtolower($input[$field]));
if (preg_match_all('#\'(.+?)\'#', $param, $matches, PREG_PATTERN_ORDER)) {
$param = $matches[1];
} else {
$param = explode(chr(32), $param);
}
if (in_array($value, $param)) { // valid, return nothing
return;
}
return array(
'field' => $field,
'value' => $value,
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* Verify that a value is contained within the pre-defined value set.
* OUTPUT: will NOT show the list of values.
*
* Usage: '<index>' => 'contains_list,value;value;value'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_contains_list($field, $input, $param = null) {
$param = trim(strtolower($param));
$value = trim(strtolower($input[$field]));
$param = explode(';', $param);
// consider: in_array(strtolower($value), array_map('strtolower', $param)
if (in_array($value, $param)) { // valid, return nothing
return;
} else {
return array(
'field' => $field,
'value' => $value,
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Verify that a value is NOT contained within the pre-defined value set.
* OUTPUT: will NOT show the list of values.
*
* Usage: '<index>' => 'doesnt_contain_list,value;value;value'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_doesnt_contain_list($field, $input, $param = null) {
$param = trim(strtolower($param));
$value = trim(strtolower($input[$field]));
$param = explode(';', $param);
if (!in_array($value, $param)) { // valid, return nothing
return;
} else {
return array(
'field' => $field,
'value' => $value,
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Check if the specified key is present and not empty.
*
* Usage: '<index>' => 'required'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_required($field, $input, $param = null) {
if (isset($input[$field]) && ($input[$field] === false || $input[$field] === 0 || $input[$field] === 0.0 || $input[$field] === '0' || !empty($input[$field]))) {
return;
}
return array(
'field' => $field,
'value' => null,
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* Determine if the provided email is valid.
*
* Usage: '<index>' => 'valid_email'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_valid_email($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!filter_var($input[$field], FILTER_VALIDATE_EMAIL)) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided value length is less or equal to a specific value.
*
* Usage: '<index>' => 'max_len,240'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_max_len($field, $input, $param = null) {
if (!isset($input[$field])) {
return;
}
if (function_exists('mb_strlen')) {
if (mb_strlen($input[$field]) <= (int)$param) {
return;
}
} else {
if (strlen($input[$field]) <= (int)$param) {
return;
}
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* Determine if the provided value length is more or equal to a specific value.
*
* Usage: '<index>' => 'min_len,4'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_min_len($field, $input, $param = null) {
if (!isset($input[$field])) {
return;
}
if (function_exists('mb_strlen')) {
if (mb_strlen($input[$field]) >= (int)$param) {
return;
}
} else {
if (strlen($input[$field]) >= (int)$param) {
return;
}
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* Determine if the provided value length matches a specific value.
*
* Usage: '<index>' => 'exact_len,5'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_exact_len($field, $input, $param = null) {
if (!isset($input[$field])) {
return;
}
if (function_exists('mb_strlen')) {
if (mb_strlen($input[$field]) == (int)$param) {
return;
}
} else {
if (strlen($input[$field]) == (int)$param) {
return;
}
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* Determine if the provided value contains only alpha characters.
*
* Usage: '<index>' => 'alpha'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_alpha($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!preg_match('/^([a-zÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïðòóôõöùúûüýÿ])+$/i', $input[$field]) !== false) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided value contains only alpha-numeric characters.
*
* Usage: '<index>' => 'alpha_numeric'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_alpha_numeric($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!preg_match('/^([a-z0-9ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïðòóôõöùúûüýÿ])+$/i', $input[$field]) !== false) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided value contains only alpha characters with dashed and underscores.
*
* Usage: '<index>' => 'alpha_dash'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_alpha_dash($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!preg_match('/^([a-z0-9ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïðòóôõöùúûüýÿ_-])+$/i', $input[$field]) !== false) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided value contains only alpha numeric characters with spaces.
*
* Usage: '<index>' => 'alpha_space'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_alpha_space($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!preg_match("/^([a-z0-9ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïðòóôõöùúûüýÿ\s])+$/i", $input[$field]) !== false) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided value is a valid number or numeric string.
*
* Usage: '<index>' => 'numeric'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_numeric($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!is_numeric($input[$field])) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided value is a valid integer.
*
* Usage: '<index>' => 'integer'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_integer($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (filter_var($input[$field], FILTER_VALIDATE_INT) === false) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided value is a PHP accepted boolean.
*
* Usage: '<index>' => 'boolean'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_boolean($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field]) && $input[$field] !== 0) {
return;
}
if ($input[$field] === true || $input[$field] === false) {
return;
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* Determine if the provided value is a valid float.
*
* Usage: '<index>' => 'float'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_float($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (filter_var($input[$field], FILTER_VALIDATE_FLOAT) === false) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided value is a valid URL.
*
* Usage: '<index>' => 'valid_url'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_valid_url($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!filter_var($input[$field], FILTER_VALIDATE_URL)) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if a URL exists & is accessible.
*
* Usage: '<index>' => 'url_exists'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_url_exists($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
$url = parse_url(strtolower($input[$field]));
if (isset($url['host'])) {
$url = $url['host'];
}
if (function_exists('checkdnsrr')) {
if (checkdnsrr($url) === false) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
} else {
if (gethostbyname($url) == $url) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
}
/**
* Determine if the provided value is a valid IP address.
*
* Usage: '<index>' => 'valid_ip'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_valid_ip($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!filter_var($input[$field], FILTER_VALIDATE_IP) !== false) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided value is a valid IPv4 address.
*
* Usage: '<index>' => 'valid_ipv4'
*
* @param string $field
* @param array $input
*
* @return mixed
*
* @see http://pastebin.com/UvUPPYK0
*/
/*
* What about private networks? http://en.wikipedia.org/wiki/Private_network
* What about loop-back address? 127.0.0.1
*/
protected function validate_valid_ipv4($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!filter_var($input[$field], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) {
// removed !== FALSE
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided value is a valid IPv6 address.
*
* Usage: '<index>' => 'valid_ipv6'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_valid_ipv6($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!filter_var($input[$field], FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the input is a valid credit card number.
*
* See: http://stackoverflow.com/questions/174730/what-is-the-best-way-to-validate-a-credit-card-in-php
* Usage: '<index>' => 'valid_cc'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_valid_cc($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
$number = preg_replace('/\D/', '', $input[$field]);
if (function_exists('mb_strlen')) {
$number_length = mb_strlen($number);
} else {
$number_length = strlen($number);
}
$parity = $number_length % 2;
$total = 0;
for ($i = 0; $i < $number_length; ++$i) {
$digit = $number[$i];
if ($i % 2 == $parity) {
$digit *= 2;
if ($digit > 9) {
$digit -= 9;
}
}
$total += $digit;
}
if ($total % 10 == 0) {
return; // Valid
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* Determine if the input is a valid human name [Credits to http://github.com/ben-s].
*
* See: https://github.com/Wixel/GUMP/issues/5
* Usage: '<index>' => 'valid_name'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_valid_name($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!preg_match("/^([a-zÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïñðòóôõöùúûüýÿ '-])+$/i", $input[$field]) !== false) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided input is likely to be a street address using weak detection.
*
* Usage: '<index>' => 'street_address'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_street_address($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
// Theory: 1 number, 1 or more spaces, 1 or more words
$hasLetter = preg_match('/[a-zA-Z]/', $input[$field]);
$hasDigit = preg_match('/\d/', $input[$field]);
$hasSpace = preg_match('/\s/', $input[$field]);
$passes = $hasLetter && $hasDigit && $hasSpace;
if (!$passes) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided value is a valid IBAN.
*
* Usage: '<index>' => 'iban'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_iban($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
static $character = array(
'A' => 10, 'C' => 12, 'D' => 13, 'E' => 14, 'F' => 15, 'G' => 16,
'H' => 17, 'I' => 18, 'J' => 19, 'K' => 20, 'L' => 21, 'M' => 22,
'N' => 23, 'O' => 24, 'P' => 25, 'Q' => 26, 'R' => 27, 'S' => 28,
'T' => 29, 'U' => 30, 'V' => 31, 'W' => 32, 'X' => 33, 'Y' => 34,
'Z' => 35, 'B' => 11
);
if (!preg_match("/\A[A-Z]{2}\d{2} ?[A-Z\d]{4}( ?\d{4}){1,} ?\d{1,4}\z/", $input[$field])) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
$iban = str_replace(' ', '', $input[$field]);
$iban = substr($iban, 4) . substr($iban, 0, 4);
$iban = strtr($iban, $character);
if (bcmod($iban, 97) != 1) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided input is a valid date (ISO 8601).
*
* Usage: '<index>' => 'date'
*
* @param string $field
* @param string $input date ('Y-m-d') or datetime ('Y-m-d H:i:s')
* @param null $param
*
* @return mixed
*/
protected function validate_date($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
$cdate1 = date('Y-m-d', strtotime($input[$field]));
$cdate2 = date('Y-m-d H:i:s', strtotime($input[$field]));
if ($cdate1 != $input[$field] && $cdate2 != $input[$field]) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided input meets age requirement (ISO 8601).
*
* Usage: '<index>' => 'min_age,13'
*
* @param string $field
* @param string $input date ('Y-m-d') or datetime ('Y-m-d H:i:s')
* @param string $param int
*
* @return mixed
*/
protected function validate_min_age($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
$cdate1 = new DateTime(date('Y-m-d', strtotime($input[$field])));
$today = new DateTime(date('d-m-Y'));
$interval = $cdate1->diff($today);
$age = $interval->y;
if ($age <= $param) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided numeric value is lower or equal to a specific value.
*
* Usage: '<index>' => 'max_numeric,50'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_max_numeric($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (is_numeric($input[$field]) && is_numeric($param) && ($input[$field] <= $param)) {
return;
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* Determine if the provided numeric value is higher or equal to a specific value.
*
* Usage: '<index>' => 'min_numeric,1'
*
* @param string $field
* @param array $input
* @param null $param
*
* @return mixed
*/
protected function validate_min_numeric($field, $input, $param = null) {
if (!isset($input[$field])) {
return;
}
if (is_numeric($input[$field]) && is_numeric($param) && ($input[$field] >= $param)) {
return;
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* Determine if the provided value starts with param.
*
* Usage: '<index>' => 'starts,Z'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_starts($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (strpos($input[$field], $param) !== 0) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* checks if a file was uploaded.
*
* Usage: '<index>' => 'required_file'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_required_file($field, $input, $param = null) {
if ($input[$field]['error'] !== 4) {
return;
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* check the uploaded file for extension
* for now checks onlt the ext should add mime type check.
*
* Usage: '<index>' => 'starts,Z'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_extension($field, $input, $param = null) {
if ($input[$field]['error'] !== 4) {
$param = trim(strtolower($param));
$allowed_extensions = explode(';', $param);
$path_info = pathinfo($input[$field]['name']);
$extension = $path_info['extension'];
if (in_array($extension, $allowed_extensions)) {
return;
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Determine if the provided field value equals current field value.
*
* Usage: '<index>' => 'equalsfield,Z'
*
* @param string $field
* @param string $input
* @param string $param field to compare with
*
* @return mixed
*/
protected function validate_equalsfield($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if ($input[$field] == $input[$param]) {
return;
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* Determine if the provided field value is a valid GUID (v4)
*
* Usage: '<index>' => 'guidv4'
*
* @param string $field
* @param string $input
* @param string $param field to compare with
*
* @return mixed
*/
protected function validate_guidv4($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (preg_match("/\{?[A-Z0-9]{8}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{12}\}?$/", $input[$field])) {
return;
}
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
/**
* Trims whitespace only when the value is a scalar.
*
* @param mixed $value
*
* @return mixed
*/
private function trimScalar($value) {
if (is_scalar($value)) {
$value = trim($value);
}
return $value;
}
/**
* Determine if the provided value is a valid phone number.
*
* Usage: '<index>' => 'phone_number'
*
* @param string $field
* @param array $input
*
* @return mixed
*
* Examples:
*
* 555-555-5555: valid
* 5555425555: valid
* 555 555 5555: valid
* 1(519) 555-4444: valid
* 1 (519) 555-4422: valid
* 1-555-555-5555: valid
* 1-(555)-555-5555: valid
*/
protected function validate_phone_number($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
$regex = '/^(\d[\s-]?)?[\(\[\s-]{0,2}?\d{3}[\)\]\s-]{0,2}?\d{3}[\s-]?\d{4}$/i';
if (!preg_match($regex, $input[$field])) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Custom regex validator.
*
* Usage: '<index>' => 'regex&&&/regex/'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_regex($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
$regex = $param;
if (!preg_match($regex, $input[$field])) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
/**
* Json validatior.
*
* Usage: '<index>' => 'valid_json_string'
*
* @param string $field
* @param array $input
*
* @return mixed
*/
protected function validate_valid_json_string($field, $input, $param = null) {
if (!isset($input[$field]) || empty($input[$field])) {
return;
}
if (!is_string($input[$field]) || !is_object(json_decode($input[$field]))) {
return array(
'field' => $field,
'value' => $input[$field],
'rule' => __FUNCTION__,
'param' => $param,
);
}
}
} // EOC