tweet_live: comparison web/Zend/Captcha/Word.php

equal deleted inserted replaced

--1:000000000000
+:4eba9c11703f
+<?php
+/**
+* Zend Framework
+*
+* LICENSE
+*
+* This source file is subject to the new BSD license that is bundled
+* with this package in the file LICENSE.txt.
+* It is also available through the world-wide-web at this URL:
+* http://framework.zend.com/license/new-bsd
+* If you did not receive a copy of the license and are unable to
+* obtain it through the world-wide-web, please send an email
+* to license@zend.com so we can send you a copy immediately.
+*
+* @category   Zend
+* @package    Zend_Captcha
+* @subpackage Adapter
+* @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+* @license    http://framework.zend.com/license/new-bsd     New BSD License
+*/
+/** @see Zend_Captcha_Base */
+require_once 'Zend/Captcha/Base.php';
+/**
+* Word-based captcha adapter
+*
+* Generates random word which user should recognise
+*
+* @category   Zend
+* @package    Zend_Captcha
+* @subpackage Adapter
+* @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+* @license    http://framework.zend.com/license/new-bsd     New BSD License
+* @version    $Id: Word.php 21793 2010-04-08 00:51:31Z stas $
+*/
+abstract class Zend_Captcha_Word extends Zend_Captcha_Base
+{
+/**#@+
+* @var array Character sets
+*/
+static $V  = array("a", "e", "i", "o", "u", "y");
+static $VN = array("a", "e", "i", "o", "u", "y","2","3","4","5","6","7","8","9");
+static $C  = array("b","c","d","f","g","h","j","k","m","n","p","q","r","s","t","u","v","w","x","z");
+static $CN = array("b","c","d","f","g","h","j","k","m","n","p","q","r","s","t","u","v","w","x","z","2","3","4","5","6","7","8","9");
+/**#@-*/
+/**
+* Random session ID
+*
+* @var string
+*/
+protected $_id;
+/**
+* Generated word
+*
+* @var string
+*/
+protected $_word;
+/**
+* Session
+*
+* @var Zend_Session_Namespace
+*/
+protected $_session;
+/**
+* Class name for sessions
+*
+* @var string
+*/
+protected $_sessionClass = 'Zend_Session_Namespace';
+/**
+* Should the numbers be used or only letters
+*
+* @var boolean
+*/
+protected $_useNumbers = true;
+/**
+* Should both cases be used or only lowercase
+*
+* @var boolean
+*/
+// protected $_useCase = false;
+/**
+* Session lifetime for the captcha data
+*
+* @var integer
+*/
+protected $_timeout = 300;
+/**
+* Should generate() keep session or create a new one?
+*
+* @var boolean
+*/
+protected $_keepSession = false;
+/**#@+
+* Error codes
+*/
+const MISSING_VALUE = 'missingValue';
+const MISSING_ID    = 'missingID';
+const BAD_CAPTCHA   = 'badCaptcha';
+/**#@-*/
+/**
+* Error messages
+* @var array
+*/
+protected $_messageTemplates = array(
+self::MISSING_VALUE => 'Empty captcha value',
+self::MISSING_ID    => 'Captcha ID field is missing',
+self::BAD_CAPTCHA   => 'Captcha value is wrong',
+);
+/**
+* Length of the word to generate
+*
+* @var integer
+*/
+protected $_wordlen = 8;
+/**
+* Retrieve session class to utilize
+*
+* @return string
+*/
+	public function getSessionClass()
+{
+return $this->_sessionClass;
+}
+/**
+* Set session class for persistence
+*
+* @param  string $_sessionClass
+* @return Zend_Captcha_Word
+*/
+public function setSessionClass($_sessionClass)
+{
+$this->_sessionClass = $_sessionClass;
+return $this;
+}
+/**
+* Retrieve word length to use when genrating captcha
+*
+* @return integer
+*/
+public function getWordlen()
+{
+return $this->_wordlen;
+}
+/**
+* Set word length of captcha
+*
+* @param integer $wordlen
+* @return Zend_Captcha_Word
+*/
+public function setWordlen($wordlen)
+{
+$this->_wordlen = $wordlen;
+return $this;
+}
+/**
+* Retrieve captcha ID
+*
+* @return string
+*/
+public function getId ()
+{
+if (null === $this->_id) {
+$this->_setId($this->_generateRandomId());
+}
+return $this->_id;
+}
+/**
+* Set captcha identifier
+*
+* @param string $id
+* return Zend_Captcha_Word
+*/
+protected function _setId ($id)
+{
+$this->_id = $id;
+return $this;
+}
+/**
+* Set timeout for session token
+*
+* @param  int $ttl
+* @return Zend_Captcha_Word
+*/
+public function setTimeout($ttl)
+{
+$this->_timeout = (int) $ttl;
+return $this;
+}
+/**
+* Get session token timeout
+*
+* @return int
+*/
+public function getTimeout()
+{
+return $this->_timeout;
+}
+	/**
+	 * Sets if session should be preserved on generate()
+	 *
+	 * @param $keepSession Should session be kept on generate()?
+	 * @return Zend_Captcha_Word
+	 */
+	public function setKeepSession($keepSession)
+	{
+		$this->_keepSession = $keepSession;
+		return $this;
+	}
+/**
+* Numbers should be included in the pattern?
+*
+* @return bool
+*/
+public function getUseNumbers()
+{
+return $this->_useNumbers;
+}
+	/**
+	 * Set if numbers should be included in the pattern
+	 *
+* @param $_useNumbers numbers should be included in the pattern?
+* @return Zend_Captcha_Word
+*/
+public function setUseNumbers($_useNumbers)
+{
+$this->_useNumbers = $_useNumbers;
+return $this;
+}
+	/**
+* Get session object
+*
+* @return Zend_Session_Namespace
+*/
+public function getSession()
+{
+if (!isset($this->_session) || (null === $this->_session)) {
+$id = $this->getId();
+if (!class_exists($this->_sessionClass)) {
+require_once 'Zend/Loader.php';
+Zend_Loader::loadClass($this->_sessionClass);
+}
+$this->_session = new $this->_sessionClass('Zend_Form_Captcha_' . $id);
+$this->_session->setExpirationHops(1, null, true);
+$this->_session->setExpirationSeconds($this->getTimeout());
+}
+return $this->_session;
+}
+/**
+* Set session namespace object
+*
+* @param  Zend_Session_Namespace $session
+* @return Zend_Captcha_Word
+*/
+public function setSession(Zend_Session_Namespace $session)
+{
+$this->_session = $session;
+if($session) {
+$this->_keepSession = true;
+}
+return $this;
+}
+/**
+* Get captcha word
+*
+* @return string
+*/
+public function getWord()
+{
+if (empty($this->_word)) {
+$session     = $this->getSession();
+$this->_word = $session->word;
+}
+return $this->_word;
+}
+/**
+* Set captcha word
+*
+* @param  string $word
+* @return Zend_Captcha_Word
+*/
+protected function _setWord($word)
+{
+$session       = $this->getSession();
+$session->word = $word;
+$this->_word   = $word;
+return $this;
+}
+/**
+* Generate new random word
+*
+* @return string
+*/
+protected function _generateWord()
+{
+$word       = '';
+$wordLen    = $this->getWordLen();
+$vowels     = $this->_useNumbers ? self::$VN : self::$V;
+$consonants = $this->_useNumbers ? self::$CN : self::$C;
+for ($i=0; $i < $wordLen; $i = $i + 2) {
+// generate word with mix of vowels and consonants
+$consonant = $consonants[array_rand($consonants)];
+$vowel     = $vowels[array_rand($vowels)];
+$word     .= $consonant . $vowel;
+}
+if (strlen($word) > $wordLen) {
+$word = substr($word, 0, $wordLen);
+}
+return $word;
+}
+/**
+* Generate new session ID and new word
+*
+* @return string session ID
+*/
+public function generate()
+{
+if(!$this->_keepSession) {
+$this->_session = null;
+}
+$id = $this->_generateRandomId();
+$this->_setId($id);
+$word = $this->_generateWord();
+$this->_setWord($word);
+return $id;
+}
+protected function _generateRandomId()
+{
+return md5(mt_rand(0, 1000) . microtime(true));
+}
+/**
+* Validate the word
+*
+* @see    Zend_Validate_Interface::isValid()
+* @param  mixed $value
+* @return boolean
+*/
+public function isValid($value, $context = null)
+{
+if (!is_array($value) && !is_array($context)) {
+$this->_error(self::MISSING_VALUE);
+return false;
+}
+if (!is_array($value) && is_array($context)) {
+$value = $context;
+}
+$name = $this->getName();
+if (isset($value[$name])) {
+$value = $value[$name];
+}
+if (!isset($value['input'])) {
+$this->_error(self::MISSING_VALUE);
+return false;
+}
+$input = strtolower($value['input']);
+$this->_setValue($input);
+if (!isset($value['id'])) {
+$this->_error(self::MISSING_ID);
+return false;
+}
+$this->_id = $value['id'];
+if ($input !== $this->getWord()) {
+$this->_error(self::BAD_CAPTCHA);
+return false;
+}
+return true;
+}
+/**
+* Get captcha decorator
+*
+* @return string
+*/
+public function getDecorator()
+{
+return "Captcha_Word";
+}
+}