mirror of
https://github.com/Lastorder-DC/rhymix.git
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03555a065f
git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0@8948 201d5d3c-b55e-5fd7-737f-ddc643e51545
423 lines
11 KiB
PHP
423 lines
11 KiB
PHP
<?php
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/**
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* Validator class
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*/
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class Validator
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{
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var $_cache_dir = '';
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var $_last_error;
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var $_xml_ruleset = null;
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var $_rules;
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var $_filters;
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var $_has_mb_func;
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var $_version = '1.0';
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var $_xml_path = '';
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/**
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* @constructor
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*/
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function Validator($xml_path=''){
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$this->_rules = array();
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$this->_filters = array();
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$this->_xml_ruleset = null;
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if($xml_path) $this->load($xml_path);
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// predefined rules
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$this->addRule(array(
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'email' => '/^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$/',
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'userid' => '/^[a-z]+[\w-]*[a-z0-9_]+$/i',
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'url' => '/^(https?|ftp|mms):\/\/[0-9a-z-]+(\.[_0-9a-z-]+)+(:\d+)?/',
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'alpha' => '/^[a-z]*$/i',
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'alpha_number' => '/^[a-z][a-z0-9_]*$/i',
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'number' => '/^(?:[1-9]\\d*|0)$/'
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));
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$this->_has_mb_func = is_callable('mb_strlen');
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$this->setCacheDir('./files/cache');
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}
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/**
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* Load a xml file
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* @param[in] string $xml_path A file name to be loaded
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*/
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function load($xml_path) {
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$this->_xml_ruleset = null;
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$xml_path = realpath($xml_path);
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if(!is_readable($xml_path)) return false;
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$parser = new XmlParser();
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$xml = $parser->loadXmlFile($xml_path);
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if(!isset($xml->ruleset) || !isset($xml->ruleset->fields) || !isset($xml->ruleset->fields->field)) return false;
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// custom rules
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if(isset($xml->ruleset->customrules) && isset($xml->ruleset->customrules->rule)) {
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$customrules = $xml->ruleset->customrules->rule;
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if(!is_array($customrules)) $customrules = array($customrules);
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$rules = array();
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foreach($customrules as $rule) {
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if(!isset($rule->attrs) || !isset($rule->attrs->name)) continue;
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$rule = (array)$rule->attrs;
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$name = $rule['name'];
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unset($rule['name']);
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$rules[$name] = $rule;
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}
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if(count($rules)) $this->addRule($rules);
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}
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// filters
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$fields = $xml->ruleset->fields->field;
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if(!is_array($fields)) $fields = array($fields);
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$filters = array();
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foreach($fields as $field) {
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$name = '';
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$filter = array();
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if(!isset($field->attrs) || !isset($field->attrs->name)) continue;
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$filter = (array)$field->attrs;
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$name = $filter['name'];
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unset($filter['name']);
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// conditional statement
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if(isset($field->if)) {
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$if = $field->if;
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if(!is_array($if)) $if = array($if);
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foreach($if as $idx=>$cond) {
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$if[$idx] = (array)$cond->attrs;
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}
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$filter['if'] = $if;
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}
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$filters[$name] = $filter;
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}
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$this->_xml_ruleset = $xml->ruleset;
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$this->_filters = $filters;
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$this->_xml_path = $xml_path;
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return true;
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}
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/**
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* Set root cache directory
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* @param[in] string $cache_dir Root cache directory
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*/
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function setCacheDir($cache_dir){
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if(is_dir($cache_dir)) {
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$this->_cache_dir = preg_replace('@/$@', '', $cache_dir);
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}
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}
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/**
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* Validate the fields. If the fields aren't passed, validation will be execute on the Context variables.
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* @param[in] (optional) array $fields Target fields. The keys of the array represents field's name, its values represents field's value.
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* @return bool True if it is valid, FALSE otherwise.
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*/
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function validate($fields_=null){
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if(is_array($fields_)) {
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$fields = $fields_;
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} else {
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$args = array_keys($this->_filters);
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$fields = (array)Context::getRequestVars();
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}
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if(!is_array($fields) || !count($fields)) return true;
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$filter_default = array(
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'required' => 'false',
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'default' => '',
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'modifiers' => array(),
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'length' => 0,
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'equalto' => 0,
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'rule' => 0,
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'if' => array()
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);
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$fields = array_map('trim', $fields);
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$field_names = implode("\t", array_keys($fields));
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foreach($this->_filters as $key=>$filter) {
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$fname = $key;
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$exists = array_key_exists($key, $fields);
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$filter = array_merge($filter_default, $filter);
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$value = $exists ? $fields[$fname] : null;
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// conditional statement
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foreach($filter['if'] as $cond) {
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if(!isset($cond['test']) || !isset($cond['attr'])) continue;
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$func_body = preg_replace('/\\$(\w+)/', '$c[\'$1\']', $cond['test']);
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$func = create_function('$c', "return !!({$func_body});");
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if($func($fields)) $filter[$cond['attr']] = $cond['value'];
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}
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// attr : default
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if(!$value && strlen($default=trim($filter['default']))) {
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$value = $default;
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if(is_null($fields_)) Context::set($fname, $value);
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else $fields_[$fname] = $value;
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}
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$value_len = strlen($value);
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// attr : modifier
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if(is_string($modifiers=$filter['modifiers'])) $modifiers = explode(',', trim($modifiers));
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// attr : required
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if($filter['required'] === 'true' && !$value_len) return $this->error($key, 'isnull');
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// if the field wasn't passed, ignore this value
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if(!$exists && !$value_len) continue;
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// attr : length
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if($length=$filter['length']){
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list($min, $max) = explode(':', trim($length));
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$is_min_b = (substr($min, -1) === 'b');
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$is_max_b = (substr($max, -1) === 'b');
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list($min, $max) = array((int)$min, (int)$max);
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$strbytes = strlen($value);
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if(!$is_min_b || !$is_max_b){
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$strlength = $this->_has_mb_func?mb_strlen($value,'utf-8'):$this->mbStrLen($value);
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}
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if(($min && $min > ($is_min_b?$strbytes:$strlength)) || ($max && $max < ($is_max_b?$strbytes:$strlength))) return $this->error($key, 'outofrange');
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}
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// equalto
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if($equalto=$filter['equalto']){
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if(!array_key_exists($equalto, $fields) || trim($fields[$equalto]) !== $value) return $this->error($key, 'equalto');
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}
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// rules
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if($rules=$filter['rule']){
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$rules = explode(',', $rules);
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foreach($rules as $rule) {
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$result = $this->applyRule($rule, $value);
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// apply the 'not' modifier
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if(in_array('not', $modifiers)) $result = !$result;
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if(!$result) return $this->error($key, 'invalid_'.$rule);
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}
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}
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}
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return true;
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}
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/**
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* Log an error
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* @param[in] $msg error message
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* @return always false
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*/
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function error($field, $msg){
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$lang_filter = Context::getLang('filter');
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$msg = isset($lang_filter->{$msg})?$lang_filter->{$msg}:$lang_filter->invalid;
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$msg = sprintf($msg, Context::getLang($field));
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$this->_last_error = array('field'=>$field, 'msg'=>$msg);
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return false;
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}
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/**
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* Returns the last error infomation including a field name and an error message.
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* @return array The last error infomation
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*/
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function getLastError(){
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return $this->_last_error;
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}
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/**
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* Add a new rule
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* @param[in] string $name rule name
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* @param[in] mixed $rule
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*/
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function addRule($name, $rule=''){
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if(is_array($name)) $args = $name;
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else $args = array($name=>$rule);
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foreach($args as $name=>$rule){
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if(!$rule) continue;
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if(is_string($rule)) $rule = array('type'=>'regex', 'test'=>$rule);
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if($rule['type'] == 'enum') {
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$delim = isset($rule['delim'])?$rule['delim']:',';
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$rule['test'] = explode($delim, $rule['test']);
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}
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$this->_rules[$name] = $rule;
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}
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}
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/**
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* Remove a rule
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* @param[in] string $name rule name
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*/
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function removeRule($name){
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unset($this->_rules[$name]);
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}
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function addFilter($name, $filter='') {
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if(is_array($name)) $args = $name;
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else $args = array($name=>$filter);
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foreach($args as $name=>$filter) {
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if(!$filter) continue;
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if(isset($filter['if'])) {
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if(is_array($filter['if']) && count($filter['if'])) {
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$key = key($filter['if']);
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if(!is_int($key)) $filter['if'] = array($filter['if']);
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} else {
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unset($filter['if']);
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}
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}
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$this->_filters[$name] = $filter;
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}
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}
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function removeFilter($name) {
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unset($this->_filters[$name]);
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}
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/**
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* Find whether the field is valid with the rule
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* @param[in] string $name rule name
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* @param[in] string $value a value to be validated
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* @return bool TRUE if the field is valid, FALSE otherwise.
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*/
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function applyRule($name, $value){
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$rule = $this->_rules[$name];
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switch($rule['type']) {
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case 'regex':
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return (preg_match($rule['test'], $value) > 0);
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case 'enum':
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return in_array($value, $rule['test']);
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case 'expr':
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if(!$rule['func_test']) {
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$rule['func_test'] = create_function('$a', 'return ('.preg_replace('/\$\$/', '$a', $rule['test']).');');
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}
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return $rule['func_test']($value);
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}
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return true;
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}
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/**
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* Return
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*/
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function mbStrLen($str){
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$arr = count_chars($str);
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for($i=0x80; $i < 0xc0; $i++) {
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unset($arr[$i]);
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}
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return array_sum($arr);
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}
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/**
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* Returns compiled javascript file path. The path begins from XE root directory.
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* @return string Compiled JavaScript file path
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*/
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function getJsPath(){
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if(!$this->_cache_dir) return false;
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$dir = $this->_cache_dir.'/ruleset';
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if(!is_dir($dir) && !mkdir($dir)) return false;
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if(!$this->_xml_path) return false;
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$filepath = $dir.'/'.md5($this->_version.' '.$this->_xml_path).'.js';
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if(is_readable($filepath) && filemtime($filepath) > filemtime($this->_xml_path)) return $filepath;
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$content = $this->_compile2js();
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if($content === false) return false;
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if(is_callable('file_put_contents')) {
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@file_put_contents($filepath, $content);
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} else {
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$fp = @fopen($filepath, 'w');
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if(is_resource($fp)) {
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fwrite($fp, $content);
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fclose($fp);
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}
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}
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return $filepath;
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}
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/**
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* Compile a ruleset to a javascript file
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* @private
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*/
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function _compile2js() {
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$ruleset = basename($this->_xml_path,'.xml');
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$content = array();
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if(preg_match('@(^|/)files/ruleset/\w+\.xml$@i', $this->_xml_path)) $ruleset = '@'.$ruleset;
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// custom rulesets
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$addrules = array();
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foreach($this->_rules as $name=>$rule) {
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if(strpos('email,userid,url,alpha,alpha_number,number,', $name.',') !== false) continue;
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switch($rule['type']) {
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case 'regex':
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$content[] = "v.cast('ADD_RULE', ['{$name}', {$rule['test']}]);";
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break;
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case 'enum':
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$enums = '"'.implode('","', $rule['test']).'"';
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$content[] = "v.cast('ADD_RULE', ['{$name}', function($$){ return ($.inArray($$,[{$enums}]) > -1); }]);";
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break;
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case 'expr':
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$content[] = "v.cast('ADD_RULE', ['{$name}', function($$){ return ({$rule['test']}); }]);";
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break;
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}
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}
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$addrules = implode('', $addrules);
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// filters
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$content = array();
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foreach($this->_filters as $name=>$filter) {
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$field = array();
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if($filter['required'] == 'true') $field[] = 'required:true';
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if($filter['rule']) $field[] = "rule:'{$filter['rule']}'";
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if($filter['default']) $field[] = "default:'{$filter['default']}'";
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if($filter['modifier']) $field[] = "modifier:'{$filter['modifier']}'";
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if($filter['length']) {
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list($min, $max) = explode(':', $filter['length']);
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if($min) $field[] = "minlength:'{$min}'";
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if($max) $field[] = "maxlength:'{$max}'";
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}
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if($filter['if']) {
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$ifs = array();
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if(!isset($filter['if'][0])) $filter['if'] = array($filter['if']);
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foreach($filter['if'] as $if) {
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$ifs[] = "{test:'".addslashes($if['test'])."', attr:'{$if['attr']}', value:'".addslashes($if['value'])."'}";
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}
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$field[] = "'if':[".implode(',', $ifs)."]";
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}
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if(count($field)) {
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$field = '{'.implode(',', $field).'}';
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$content[] = "'{$name}':{$field}";
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}
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}
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if(count($content)) {
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$content = implode(',', $content);
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return "(function($,v){\nv=xe.getApp('validator')[0];if(!v)return;\n{$addrules}\nv.cast('ADD_FILTER',['{$ruleset}', {{$content}}]);})(jQuery);";
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} else {
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return '';
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}
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}
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}
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/* End of file Validator.class.php */
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/* Location: ./classes/validator/Validator.class.php */
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