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<?php
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/*
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* $Id: Validator.php 7490 2010-03-29 19:53:27Z jwage $
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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/**
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* This class is responsible for performing all validations on record properties
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*
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* @package Doctrine
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* @subpackage Validator
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.doctrine-project.org
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* @since 1.0
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* @version $Revision: 7490 $
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* @author Roman Borschel <roman@code-factory.org>
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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*/
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class Doctrine_Validator extends Doctrine_Locator_Injectable
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{
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/**
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* @var array $validators an array of validator objects
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*/
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private static $validators = array();
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/**
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* Get a validator instance for the passed $name
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*
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* @param string $name Name of the validator or the validator class name
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* @return Doctrine_Validator_Interface $validator
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*/
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public static function getValidator($name)
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{
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if ( ! isset(self::$validators[$name])) {
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$class = 'Doctrine_Validator_' . ucwords(strtolower($name));
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if (class_exists($class)) {
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self::$validators[$name] = new $class;
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} else if (class_exists($name)) {
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self::$validators[$name] = new $name;
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} else {
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throw new Doctrine_Exception("Validator named '$name' not available.");
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}
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}
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return self::$validators[$name];
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}
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/**
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* Validates a given record and saves possible errors in Doctrine_Validator::$stack
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*
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* @param Doctrine_Record $record
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* @return void
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*/
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public function validateRecord(Doctrine_Record $record)
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{
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$table = $record->getTable();
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// if record is transient all fields will be validated
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// if record is persistent only the modified fields will be validated
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$fields = $record->exists() ? $record->getModified():$record->getData();
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foreach ($fields as $fieldName => $value) {
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$table->validateField($fieldName, $value, $record);
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}
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$table->validateUniques($record);
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}
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/**
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* Validates the length of a field.
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*
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* @param string $value Value to validate
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* @param string $type Type of field being validated
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* @param string $maximumLength Maximum length allowed for the column
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* @return boolean $success True/false for whether the value passed validation
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*/
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public static function validateLength($value, $type, $maximumLength)
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{
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if ($maximumLength === null ) {
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return true;
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}
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if ($type == 'timestamp' || $type == 'integer' || $type == 'enum') {
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return true;
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} else if ($type == 'array' || $type == 'object') {
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$length = strlen(serialize($value));
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} else if ($type == 'decimal' || $type == 'float') {
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$value = abs($value);
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$localeInfo = localeconv();
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$decimalPoint = $localeInfo['mon_decimal_point'] ? $localeInfo['mon_decimal_point'] : $localeInfo['decimal_point'];
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$e = explode($decimalPoint, $value);
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$length = strlen($e[0]);
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if (isset($e[1])) {
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$length = $length + strlen($e[1]);
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}
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} else if ($type == 'blob') {
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$length = strlen($value);
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} else {
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$length = self::getStringLength($value);
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}
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if ($length > $maximumLength) {
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return false;
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}
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return true;
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}
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/**
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* Get length of passed string. Will use multibyte character functions if they exist
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*
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* @param string $string
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* @return integer $length
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*/
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public static function getStringLength($string)
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{
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if (function_exists('mb_strlen')) {
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return mb_strlen($string, 'utf8');
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} else {
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return strlen(utf8_decode($string));
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}
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}
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/**
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* Whether or not errors exist on this validator
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*
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* @return boolean True/false for whether or not this validate instance has error
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*/
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public function hasErrors()
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{
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return (count($this->stack) > 0);
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}
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/**
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* Validate the type of the passed variable
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*
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* @param mixed $var Variable to validate
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* @param string $type Type of the variable expected
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* @return boolean
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*/
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public static function isValidType($var, $type)
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{
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if ($var instanceof Doctrine_Expression) {
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return true;
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} else if ($var === null) {
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return true;
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} else if (is_object($var)) {
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return $type == 'object';
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}
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switch ($type) {
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case 'float':
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case 'double':
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case 'decimal':
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return (string) $var == strval(floatval($var));
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case 'integer':
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return (string) $var == strval(round(floatval($var)));
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case 'string':
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return is_string($var) || is_numeric($var);
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case 'blob':
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return is_string($var) || is_resource($var);
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case 'clob':
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case 'gzip':
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return is_string($var);
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case 'array':
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return is_array($var);
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case 'object':
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return is_object($var);
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case 'boolean':
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return is_bool($var) || (is_numeric($var) && ($var == 0 || $var == 1));
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case 'timestamp':
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$validator = self::getValidator('timestamp');
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return $validator->validate($var);
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case 'time':
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$validator = self::getValidator('time');
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return $validator->validate($var);
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case 'date':
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$validator = self::getValidator('date');
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return $validator->validate($var);
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case 'enum':
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return is_string($var) || is_int($var);
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case 'set':
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return is_array($var) || is_string($var);
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default:
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return true;
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}
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}
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}
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