Version 3.0.5
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@@ -0,0 +1,843 @@
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<?php
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/**
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* CAPTCHA CLASS
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* Database Table
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* <code>
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* CREATE TABLE captcha (
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* captcha_unique_id VARCHAR(32) NOT NULL default '',
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* captcha_string VARCHAR(100) NOT NULL default '',
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* captcha_ipaddress VARCHAR(16) NOT NULL default '',
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* captcha_date INT(10) NOT NULL default '',
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* PRIMARY KEY (captcha_unique_id )
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* );
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* </code>
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* PLUG IN: Default GD image
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* Invision Power Services
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* IP.Board v3.0.5
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* @package Invision Power Services Kernel
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* @author Matt Mecham
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* @copyright Invision Power Services, Inc.
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* @version 1.0
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*/
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class captchaPlugin
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{
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/**
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* GD version
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*
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* @access public
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* @var integer
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*/
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public $gd_version = 0;
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/**
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* Backgrounds path
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*
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* @access public
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* @var string
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*/
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public $path_background = '';
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/**
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* Fonts path
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*
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* @access public
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* @var string
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*/
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public $path_fonts = '';
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/**
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* Return an error if GD is not installed?
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* My most verbose string name. I'm so proud.
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*
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* @access public
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* @var boolean
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*/
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public $show_error_gd_img = false;
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/**
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* Registry object
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*
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* @access protected
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* @var object
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*/
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public $registry;
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/**
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* Database object
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*
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* @access protected
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* @var object
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*/
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public $DB;
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/**
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* Settings object
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*
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* @access protected
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* @var object
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*/
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public $settings;
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/**
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* Request object
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*
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* @access protected
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* @var object
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*/
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public $request;
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/**
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* Language object
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*
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* @access protected
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* @var object
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*/
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public $lang;
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/**
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* Member object
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*
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* @access protected
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* @var object
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*/
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public $member;
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/**
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* Member data object
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*
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* @access protected
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* @var object
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*/
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public $memberData;
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/**
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* Captcha key
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*
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* @access public
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* @var string
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*/
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public $captchaKey = '';
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/**
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* Constructor
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*
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* @param object Registry Object
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*/
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public function __construct( ipsRegistry $registry )
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{
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$this->registry = $registry;
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$this->DB = $this->registry->DB();
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$this->settings =& $this->registry->fetchSettings();
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$this->request =& $this->registry->fetchRequest();
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$this->lang = $this->registry->getClass('class_localization');
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$this->member = $this->registry->member();
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$this->memberData =& $this->registry->member()->fetchMemberData();
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/* Settings */
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$this->gd_version = $this->settings['gd_version'];
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$this->path_background = DOC_IPS_ROOT_PATH . 'public/style_captcha/captcha_backgrounds';
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$this->path_fonts = DOC_IPS_ROOT_PATH . 'public/style_captcha/captcha_fonts';
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}
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/**
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* Returns the template bit
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*
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* @access public
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* @return string
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*/
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public function getTemplate()
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{
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//-----------------------------------------
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// Clear old
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//-----------------------------------------
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$this->_clearSessions( $this->member->ip_address );
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//-----------------------------------------
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// Create new ID
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//-----------------------------------------
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$captcha_unique_id = md5( uniqid( time() ) );
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$captcha_string = "";
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//-----------------------------------------
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// Create new string
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//-----------------------------------------
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/**
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* Array of characters
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* Removed: 0, o, O, 1, l, I, i, L (because they're hard to differentiate)
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*/
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$array_of_chars = array(
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'j', 'k', 'm', 'n', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
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'2', '3', '4', '5', '6', '7', '8', '9',
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);
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/* Get 6 random characters */
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for( $i = 0; $i < 6; $i++ )
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{
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$idx = mt_rand( 0, count( $array_of_chars ) - 1 );
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$captcha_string .= $array_of_chars[ $idx ];
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}
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//-----------------------------------------
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// Add to the DB
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//-----------------------------------------
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$this->DB->insert( 'captcha', array( 'captcha_unique_id' => $captcha_unique_id,
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'captcha_string' => $captcha_string,
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'captcha_ipaddress' => $this->member->ip_address,
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'captcha_date' => time() ) );
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/* Make available */
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$this->captchaKey = $captcha_unique_id;
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//-----------------------------------------
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// Return Template Bit
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//-----------------------------------------
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return $this->registry->output->getTemplate('global_other')->captchaGD( $captcha_unique_id );
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}
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/**
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* Validate the captcha image
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*
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* @access public
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* @return boolean
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*/
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public function validate()
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{
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//-----------------------------------------
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// INIT
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//-----------------------------------------
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$captcha_unique_id = IPSText::alphanumericalClean( $_REQUEST['captcha_unique_id'] );
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$captcha_input_NOT_CLEAN = trim( $_REQUEST['captcha_string'] );
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//-----------------------------------------
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// Get the info from the DB
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//-----------------------------------------
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$captcha = $this->DB->buildAndFetch( array( 'select' => '*',
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'from' => 'captcha',
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'where' => "captcha_unique_id='". addslashes( $captcha_unique_id )."'" ) );
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if ( ! $captcha['captcha_unique_id'] )
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{
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return FALSE;
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}
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//-----------------------------------------
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// Check...
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//-----------------------------------------
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if ( $captcha['captcha_string'] != $captcha_input_NOT_CLEAN )
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{
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return FALSE;
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}
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else
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{
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$this->_clearSessions( $this->member->ip_address );
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return TRUE;
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}
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}
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/**
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* Show the captcha bot image
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*
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* @access public
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* @param string captcha_unique_id Unique captcha db row id
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* @return mixed [Boolean on failure],[Output image data/headers]
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* @since 1.0
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*/
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public function showImage( $captcha_unique_id )
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{
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//-----------------------------------------
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// CHECK
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//-----------------------------------------
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//-----------------------------------------
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// Magic _call method makes an array
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//-----------------------------------------
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$captcha_unique_id = $captcha_unique_id[0];
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if ( ! $captcha_unique_id )
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{
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return false;
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}
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//-----------------------------------------
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// Get the info from the DB
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//-----------------------------------------
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$captcha = $this->DB->buildAndFetch( array( 'select' => '*',
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'from' => 'captcha',
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'where' => "captcha_unique_id='" . $captcha_unique_id . "'",
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) );
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if ( ! $captcha['captcha_unique_id'] )
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{
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return false;
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}
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//-----------------------------------------
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// Show it...
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//-----------------------------------------
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$this->_showGDImage( $captcha['captcha_string'] );
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}
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/**
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* Show anti-spam bot GD image numbers
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*
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* @param string Number string
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* @return void
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* @since 1.0
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*/
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private function _showGDImage( $content="" )
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{
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//-----------------------------------------
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// Is GD Available?
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//-----------------------------------------
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if ( ! extension_loaded('gd') )
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{
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if ( $this->show_error_gd_img )
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{
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@header( "Content-Type: image/gif" );
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print base64_decode( "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" );
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exit();
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}
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else
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{
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exit();
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}
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}
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//-----------------------------------------
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// INIT
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//-----------------------------------------
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$content = ' '. preg_replace( "/(\w)/", "\\1 ", $content ) .' ';
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$allow_fonts = isset( $this->settings['captcha_allow_fonts'] ) ? $this->settings['captcha_allow_fonts'] : 1;
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$use_fonts = 0;
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$tmp_x = 135;
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$tmp_y = 20;
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$image_x = 200;
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$image_y = 60;
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$circles = 3;
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$continue_loop = TRUE;
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$_started = FALSE;
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//-----------------------------------------
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// Get backgrounds and fonts...
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//-----------------------------------------
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$backgrounds = $this->_getBackgrounds();
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$fonts = $this->_getFonts();
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//-----------------------------------------
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// Got a background?
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//-----------------------------------------
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$_imgs = array();
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if ( $this->gd_version > 1 )
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{
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while ( $continue_loop )
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{
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if ( is_array( $backgrounds ) AND count( $backgrounds ) )
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{
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$i = mt_rand(0, count( $backgrounds ) - 1 );
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$background = $backgrounds[ $i ];
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$_file_extension = preg_replace( "#^.*\.(\w{2,4})$#is", "\\1", strtolower( $background ) );
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switch( $_file_extension )
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{
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case 'jpg':
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case 'jpe':
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case 'jpeg':
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if ( ! function_exists('imagecreatefromjpeg') OR ! $im = @imagecreatefromjpeg($background) )
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{
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unset( $backgrounds[ $i ] );
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}
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else
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{
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$_imgs[] = $im;
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if( count( $_imgs ) > 2 )
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{
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$continue_loop = FALSE;
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$_started = TRUE;
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}
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}
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break;
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case 'gif':
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if ( ! function_exists('imagecreatefromgif') OR ! $im = @imagecreatefromgif($background) )
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{
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unset( $backgrounds[ $i ] );
|
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}
|
||||
else
|
||||
{
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$_imgs[] = $im;
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if( count( $_imgs ) > 2 )
|
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{
|
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$continue_loop = FALSE;
|
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$_started = TRUE;
|
||||
}
|
||||
}
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break;
|
||||
case 'png':
|
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if ( ! function_exists('imagecreatefrompng') OR ! $im = @imagecreatefrompng($background) )
|
||||
{
|
||||
unset( $backgrounds[ $i ] );
|
||||
}
|
||||
else
|
||||
{
|
||||
$_imgs[] = $im;
|
||||
|
||||
if( count( $_imgs ) > 2 )
|
||||
{
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$continue_loop = FALSE;
|
||||
$_started = TRUE;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
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||||
$continue_loop = FALSE;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Create a new background */
|
||||
if( count( $_imgs > 2 ) )
|
||||
{
|
||||
/* Setup */
|
||||
$strip_count = 8;
|
||||
$strips = ceil( $image_x / $strip_count );
|
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$im = imagecreatetruecolor( $image_x, $image_y );
|
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$curr_offset = 0;
|
||||
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||||
for( $i = 0; $i < $strip_count; $i++ )
|
||||
{
|
||||
/* Alternate the background */
|
||||
$alternate++;
|
||||
$alternate = ( $alternate > 2 ) ? 0 : $alternate;
|
||||
|
||||
/* Width of the strip */
|
||||
$end_strip = ( $i * $strips ) + mt_rand( 1, $strips );
|
||||
|
||||
/* Copy the splice */
|
||||
imagecopymerge( $im, $_imgs[$alternate], $curr_offset, 0, $curr_offset, 0, $end_strip, $image_y, mt_rand( 1, 100 ) );
|
||||
|
||||
/* Increment the offset */
|
||||
$curr_offset += $end_strip;
|
||||
}
|
||||
|
||||
$_started = TRUE;
|
||||
|
||||
}
|
||||
|
||||
//-----------------------------------------
|
||||
// Still not got one? DO OLD FASHIONED
|
||||
//-----------------------------------------
|
||||
|
||||
if ( $_started !== TRUE )
|
||||
{
|
||||
if ( $this->gd_version == 1 )
|
||||
{
|
||||
$im = imagecreate($image_x, $image_y);
|
||||
$tmp = imagecreate($tmp_x, $tmp_y);
|
||||
}
|
||||
else
|
||||
{
|
||||
$im = imagecreatetruecolor($image_x, $image_y);
|
||||
$tmp = imagecreatetruecolor($tmp_x, $tmp_y);
|
||||
}
|
||||
|
||||
$white = ImageColorAllocate($tmp, 255, 255, 255);
|
||||
$black = ImageColorAllocate($tmp, 0, 0, 0);
|
||||
$grey = ImageColorAllocate($tmp, 200, 200, 200 );
|
||||
|
||||
imagefill($tmp, 0, 0, $white);
|
||||
|
||||
for ( $i = 1; $i <= $circles; $i++ )
|
||||
{
|
||||
$values = array(
|
||||
0 => mt_rand(0, $tmp_x - 10),
|
||||
1 => mt_rand(0, $tmp_y - 3),
|
||||
2 => mt_rand(0, $tmp_x - 10),
|
||||
3 => mt_rand(0, $tmp_y - 3),
|
||||
4 => mt_rand(0, $tmp_x - 10),
|
||||
5 => mt_rand(0, $tmp_y - 3),
|
||||
6 => mt_rand(0, $tmp_x - 10),
|
||||
7 => mt_rand(0, $tmp_y - 3),
|
||||
8 => mt_rand(0, $tmp_x - 10),
|
||||
9 => mt_rand(0, $tmp_y - 3),
|
||||
10 => mt_rand(0, $tmp_x - 10),
|
||||
11 => mt_rand(0, $tmp_y - 3),
|
||||
);
|
||||
|
||||
$randomcolor = imagecolorallocate( $tmp, mt_rand(100,255), mt_rand(100,255), mt_rand(100,255) );
|
||||
imagefilledpolygon($tmp, $values, 6, $randomcolor );
|
||||
}
|
||||
|
||||
$num = strlen($content);
|
||||
$x_param = 0;
|
||||
$y_param = 0;
|
||||
|
||||
for( $i = 0; $i < $num; $i++ )
|
||||
{
|
||||
$x_param += mt_rand(-1,12);
|
||||
$y_param = mt_rand(-3,8);
|
||||
|
||||
if( $x_param + 18 > $image_x )
|
||||
{
|
||||
$x_param -= ceil( $x_param + 18 - $image_x );
|
||||
}
|
||||
|
||||
$randomcolor = imagecolorallocate( $tmp, mt_rand(0,150), mt_rand(0,150), mt_rand(0,150) );
|
||||
|
||||
imagestring($tmp, 5, $x_param+1, $y_param+1, $content{$i}, $grey);
|
||||
imagestring($tmp, 5, $x_param, $y_param, $content{$i}, $randomcolor);
|
||||
}
|
||||
|
||||
//-----------------------------------------
|
||||
// Distort by resizing
|
||||
//-----------------------------------------
|
||||
|
||||
imagecopyresized($im, $tmp, 0, 0, 0, 0, $image_x, $image_y, $tmp_x, $tmp_y);
|
||||
|
||||
imagedestroy($tmp);
|
||||
|
||||
//-----------------------------------------
|
||||
// Background dots and lines
|
||||
//-----------------------------------------
|
||||
|
||||
$random_pixels = $image_x * $image_y / 10;
|
||||
|
||||
for ($i = 0; $i < $random_pixels; $i++)
|
||||
{
|
||||
$randomcolor = imagecolorallocate( $im, mt_rand(0,150), mt_rand(0,150), mt_rand(0,150) );
|
||||
ImageSetPixel($im, mt_rand(0, $image_x), mt_rand(0, $image_y), $randomcolor);
|
||||
}
|
||||
|
||||
$no_x_lines = ($image_x - 1) / 5;
|
||||
|
||||
for ( $i = 0; $i <= $no_x_lines; $i++ )
|
||||
{
|
||||
ImageLine( $im, $i * $no_x_lines, 0, $i * $no_x_lines, $image_y, $grey );
|
||||
ImageLine( $im, $i * $no_x_lines, 0, ($i * $no_x_lines)+$no_x_lines, $image_y, $grey );
|
||||
}
|
||||
|
||||
$no_y_lines = ($image_y - 1) / 5;
|
||||
|
||||
for ( $i = 0; $i <= $no_y_lines; $i++ )
|
||||
{
|
||||
ImageLine( $im, 0, $i * $no_y_lines, $image_x, $i * $no_y_lines, $grey );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
//-----------------------------------------
|
||||
// Can we use fonts?
|
||||
//-----------------------------------------
|
||||
|
||||
if ( $allow_fonts AND function_exists('imagettftext') AND is_array( $fonts ) AND count( $fonts ) )
|
||||
{
|
||||
if ( function_exists('imageantialias') )
|
||||
{
|
||||
imageantialias( $im, TRUE );
|
||||
}
|
||||
|
||||
$num = strlen($content);
|
||||
$x_param = -10;
|
||||
$y_param = 0;
|
||||
|
||||
for( $i = 0; $i < $num; $i++ )
|
||||
{
|
||||
/* Random Font */
|
||||
$_font = $fonts[ mt_rand( 0, count( $fonts ) - 1 ) ];
|
||||
|
||||
$y_param = mt_rand( 35, 48 );
|
||||
|
||||
# Main color
|
||||
$col_r = mt_rand(50,200);
|
||||
$col_g = mt_rand(0,150);
|
||||
$col_b = mt_rand(50,200);
|
||||
# High light
|
||||
$col_r_l = ( $col_r + 50 > 255 ) ? 255 : $col_r + 50;
|
||||
$col_g_l = ( $col_g + 50 > 255 ) ? 255 : $col_g + 50;
|
||||
$col_b_l = ( $col_b + 50 > 255 ) ? 255 : $col_b + 50;
|
||||
# Low light
|
||||
$col_r_d = ( $col_r - 50 < 0 ) ? 0 : $col_r - 50;
|
||||
$col_g_d = ( $col_g - 50 < 0 ) ? 0 : $col_g - 50;
|
||||
$col_b_d = ( $col_b - 50 < 0 ) ? 0 : $col_b - 50;
|
||||
|
||||
$color_main = imagecolorallocate( $im, $col_r, $col_g, $col_b );
|
||||
$color_light = imagecolorallocate( $im, $col_r_l, $col_g_l, $col_b_l );
|
||||
$color_dark = imagecolorallocate( $im, $col_r_d, $col_g_d, $col_b_d );
|
||||
$_slant = mt_rand( -20, 40 );
|
||||
|
||||
if ( $i == 1 OR $i == 3 OR $i == 5 )
|
||||
{
|
||||
for( $ii = 0 ; $ii < 2 ; $ii++ )
|
||||
{
|
||||
$a = $x_param + 50;
|
||||
$b = mt_rand(0,100);
|
||||
$c = $a + 20;
|
||||
$d = $b + 20;
|
||||
$e = ( $i == 3 ) ? mt_rand( 280, 320 ) : mt_rand( -280, -320 );
|
||||
|
||||
imagearc( $im, $a , $b , $c, $d, 0, $e, $color_light );
|
||||
imagearc( $im, $a+1, $b+1, $c, $d, 0, $e, $color_main );
|
||||
}
|
||||
}
|
||||
|
||||
$text_size = mt_rand( 24, 30 ); //24
|
||||
|
||||
if ( ! $_result = @imagettftext( $im, $text_size, $_slant, $x_param - 1, $y_param - 1, $color_light, $_font, $content[$i] ) )
|
||||
{
|
||||
$use_fonts = FALSE;
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
@imagettftext( $im, $text_size, $_slant, $x_param + 1, $y_param + 1, $color_dark, $_font, $content[$i] );
|
||||
@imagettftext( $im, $text_size, $_slant, $x_param, $y_param, $color_main, $_font, $content[$i] );
|
||||
}
|
||||
|
||||
$x_param += mt_rand( 13, 16 ); //15,18
|
||||
|
||||
if( $x_param + 18 > $image_x )
|
||||
{
|
||||
$x_param -= ceil( $x_param + 18 - $image_x );
|
||||
}
|
||||
}
|
||||
|
||||
$use_fonts = TRUE;
|
||||
}
|
||||
|
||||
if ( ! $use_fonts )
|
||||
{
|
||||
//-----------------------------------------
|
||||
// Continue with nice background image
|
||||
//-----------------------------------------
|
||||
|
||||
$tmp = imagecreatetruecolor($tmp_x , $tmp_y );
|
||||
$tmp2 = imagecreatetruecolor($image_x, $image_y);
|
||||
|
||||
$white = imagecolorallocate( $tmp, 255, 255, 255 );
|
||||
$black = imagecolorallocate( $tmp, 0, 0, 0 );
|
||||
$grey = imagecolorallocate( $tmp, 100, 100, 100 );
|
||||
$transparent = imagecolorallocate( $tmp2, 255, 255, 255 );
|
||||
$_white = imagecolorallocate( $tmp2, 255, 255, 255 );
|
||||
|
||||
imagefill($tmp , 0, 0, $white );
|
||||
imagefill($tmp2, 0, 0, $_white);
|
||||
|
||||
$num = strlen($content);
|
||||
$x_param = 0;
|
||||
$y_param = 0;
|
||||
|
||||
for( $i = 0; $i < $num; $i++ )
|
||||
{
|
||||
if ( $i > 0 )
|
||||
{
|
||||
$x_param += mt_rand( 6, 12 );
|
||||
|
||||
if( $x_param + 18 > $image_x )
|
||||
{
|
||||
$x_param -= ceil( $x_param + 18 - $image_x );
|
||||
}
|
||||
}
|
||||
|
||||
$y_param = mt_rand( 0, 5 );
|
||||
|
||||
$randomcolor = imagecolorallocate( $tmp, mt_rand(50,200), mt_rand(50,200), mt_rand(50,200) );
|
||||
|
||||
imagestring( $tmp, 5, $x_param + 1, $y_param + 1, $content{$i}, $grey );
|
||||
imagestring( $tmp, 5, $x_param , $y_param , $content{$i}, $randomcolor );
|
||||
}
|
||||
|
||||
imagecopyresized($tmp2, $tmp, 0, 0, 0, 0, $image_x, $image_y, $tmp_x, $tmp_y );
|
||||
|
||||
$tmp2 = $this->_showGDImageWave( $tmp2, 8, true );
|
||||
|
||||
imagecolortransparent( $tmp2, $transparent );
|
||||
imagecopymerge( $im, $tmp2, 0, 0, 0, 0, $image_x, $image_y, 100 );
|
||||
|
||||
imagedestroy($tmp);
|
||||
imagedestroy($tmp2);
|
||||
}
|
||||
}
|
||||
|
||||
//-----------------------------------------
|
||||
// Blur?
|
||||
//-----------------------------------------
|
||||
|
||||
if ( function_exists( 'imagefilter' ) )
|
||||
{
|
||||
@imagefilter( $im, IMG_FILTER_GAUSSIAN_BLUR );
|
||||
}
|
||||
|
||||
//-----------------------------------------
|
||||
// Render a border
|
||||
//-----------------------------------------
|
||||
|
||||
$black = imagecolorallocate( $im, 0, 0, 0 );
|
||||
|
||||
imageline( $im, 0, 0, $image_x, 0, $black );
|
||||
imageline( $im, 0, 0, 0, $image_y, $black );
|
||||
imageline( $im, $image_x - 1, 0, $image_x - 1, $image_y, $black );
|
||||
imageline( $im, 0, $image_y - 1, $image_x, $image_y - 1, $black );
|
||||
|
||||
//-----------------------------------------
|
||||
// Show it!
|
||||
//-----------------------------------------
|
||||
|
||||
@header( "Content-Type: image/jpeg" );
|
||||
|
||||
imagejpeg( $im );
|
||||
imagedestroy( $im );
|
||||
|
||||
exit();
|
||||
}
|
||||
|
||||
/**
|
||||
* Create wave effect for GD images
|
||||
*
|
||||
* @access private
|
||||
* @param resource Image resource
|
||||
* @param integer Wave factor
|
||||
* @return resource Returned image resource
|
||||
* @since 1.0
|
||||
*/
|
||||
private function _showGDImageWave( $im, $wave=10 )
|
||||
{
|
||||
$_width = imagesx( $im );
|
||||
$_height = imagesy( $im );
|
||||
|
||||
$tmp = imagecreatetruecolor( $_width, $_height );
|
||||
|
||||
$_direction = ( time() % 2 ) ? TRUE : FALSE;
|
||||
|
||||
for ( $x = 0; $x < $_width; $x++ )
|
||||
{
|
||||
for ( $y = 0 ; $y < $_height ; $y++ )
|
||||
{
|
||||
$xo = $wave * sin( 2 * 3.1415 * $y / 128 );
|
||||
$yo = $wave * cos( 2 * 3.1415 * $x / 128 );
|
||||
|
||||
$_x = $x - $xo;
|
||||
$_y = $y - $yo;
|
||||
|
||||
if ( ($_x > 0 AND $_x < $_width) AND ($_y > 0 AND $_y < $_height) )
|
||||
{
|
||||
$index = imagecolorat($im, $_x, $_y);
|
||||
$colors = imagecolorsforindex($im, $index);
|
||||
$color = imagecolorresolve( $tmp, $colors['red'], $colors['green'], $colors['blue'] );
|
||||
}
|
||||
else
|
||||
{
|
||||
$color = imagecolorresolve( $tmp, 255, 255, 255 );
|
||||
}
|
||||
|
||||
imagesetpixel( $tmp, $x, $y, $color );
|
||||
}
|
||||
}
|
||||
|
||||
return $tmp;
|
||||
}
|
||||
|
||||
/**
|
||||
* Removes extinct captcha sessions
|
||||
* Clears out "dead" entries
|
||||
*
|
||||
* @access private
|
||||
* @param string Optional IP address to clear out on
|
||||
* @return string void
|
||||
*/
|
||||
private function _clearSessions( $ip_address='' )
|
||||
{
|
||||
//-----------------------------------------
|
||||
// INIT
|
||||
//-----------------------------------------
|
||||
|
||||
$time = time() - 60 * 3600;
|
||||
$extra = ( $ip_address ) ? " OR captcha_ipaddress='" . $ip_address . "'" : '';
|
||||
|
||||
//-----------------------------------------
|
||||
// Remove...
|
||||
//-----------------------------------------
|
||||
|
||||
$this->DB->delete( 'captcha', 'captcha_date < ' . $time . $extra );
|
||||
}
|
||||
|
||||
/**
|
||||
* Loads up the backgrounds.
|
||||
*
|
||||
* @access private
|
||||
* @return array backgrounds
|
||||
*/
|
||||
private function _getBackgrounds()
|
||||
{
|
||||
//-----------------------------------------
|
||||
// INIT
|
||||
//-----------------------------------------
|
||||
|
||||
$images = array();
|
||||
$_path = $this->path_background;
|
||||
|
||||
if ( $_dir = opendir( $_path ) )
|
||||
{
|
||||
while( false !== ( $_file = readdir( $_dir ) ) )
|
||||
{
|
||||
if ( preg_match( "#\.(gif|jpeg|jpg|png)$#i", $_file ) )
|
||||
{
|
||||
$images[] = $_path . '/' . $_file;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return $images;
|
||||
}
|
||||
|
||||
/**
|
||||
* Loads up the fonts.
|
||||
*
|
||||
* @access private
|
||||
* @return array fonts
|
||||
*/
|
||||
private function _getFonts()
|
||||
{
|
||||
//-----------------------------------------
|
||||
// INIT
|
||||
//-----------------------------------------
|
||||
|
||||
$fonts = array();
|
||||
$_path = $this->path_fonts;
|
||||
|
||||
if ( $_dir = @opendir( $_path ) )
|
||||
{
|
||||
while( false !== ( $_file = @readdir( $_dir ) ) )
|
||||
{
|
||||
if ( preg_match( "#\.(ttf)$#i", $_file ) )
|
||||
{
|
||||
$fonts[] = $_path . '/' . $_file;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return $fonts;
|
||||
}
|
||||
|
||||
}
|
||||
@@ -0,0 +1 @@
|
||||
<html>␍<head><title>IP.Board - Bulletin Board System</title></head>␍<body>␍<h1>403: IP.Board -> Forbidden</h1>␍<hr>␍You have reached this page in error, please use your back button to return to the forum.␍<hr>␍<a href="http://www.invisionboard.com/">IP.Board</a>␍</body>␍</html>␍
|
||||
@@ -0,0 +1,305 @@
|
||||
<?php
|
||||
|
||||
/*
|
||||
* This is a PHP library that handles calling reCAPTCHA.
|
||||
* - Documentation and latest version
|
||||
* http://recaptcha.net/plugins/php/
|
||||
* - Get a reCAPTCHA API Key
|
||||
* http://recaptcha.net/api/getkey
|
||||
* - Discussion group
|
||||
* http://groups.google.com/group/recaptcha
|
||||
*
|
||||
* Copyright (c) 2007 reCAPTCHA -- http://recaptcha.net
|
||||
* AUTHORS:
|
||||
* Mike Crawford
|
||||
* Ben Maurer
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
|
||||
/**
|
||||
* The reCAPTCHA server URL's
|
||||
*/
|
||||
define("RECAPTCHA_API_SERVER", "http://api.recaptcha.net");
|
||||
define("RECAPTCHA_API_SECURE_SERVER", "https://api-secure.recaptcha.net");
|
||||
define("RECAPTCHA_VERIFY_SERVER", "api-verify.recaptcha.net");
|
||||
|
||||
class captchaPlugin
|
||||
{
|
||||
/**
|
||||
* Registry object
|
||||
*
|
||||
* @access protected
|
||||
* @var object
|
||||
*/
|
||||
public $registry;
|
||||
|
||||
/**
|
||||
* Database object
|
||||
*
|
||||
* @access protected
|
||||
* @var object
|
||||
*/
|
||||
public $DB;
|
||||
|
||||
/**
|
||||
* Settings object
|
||||
*
|
||||
* @access protected
|
||||
* @var object
|
||||
*/
|
||||
public $settings;
|
||||
|
||||
/**
|
||||
* Request object
|
||||
*
|
||||
* @access protected
|
||||
* @var object
|
||||
*/
|
||||
public $request;
|
||||
|
||||
/**
|
||||
* Language object
|
||||
*
|
||||
* @access protected
|
||||
* @var object
|
||||
*/
|
||||
public $lang;
|
||||
|
||||
/**
|
||||
* Member object
|
||||
*
|
||||
* @access protected
|
||||
* @var object
|
||||
*/
|
||||
public $member;
|
||||
|
||||
/**
|
||||
* Member data object
|
||||
*
|
||||
* @access protected
|
||||
* @var object
|
||||
*/
|
||||
public $memberData;
|
||||
|
||||
/**
|
||||
* Error code from reCAPTCHA
|
||||
*
|
||||
* @access protected
|
||||
* @var string
|
||||
*/
|
||||
public $error;
|
||||
|
||||
/**
|
||||
* Constructor
|
||||
*
|
||||
* @access public
|
||||
* @param object Registry Object
|
||||
* @return void
|
||||
*/
|
||||
public function __construct( ipsRegistry $registry )
|
||||
{
|
||||
$this->registry = $registry;
|
||||
$this->DB = $this->registry->DB();
|
||||
$this->settings =& $this->registry->fetchSettings();
|
||||
$this->request =& $this->registry->fetchRequest();
|
||||
$this->lang = $this->registry->getClass('class_localization');
|
||||
$this->member = $this->registry->member();
|
||||
$this->memberData =& $this->registry->member()->fetchMemberData();
|
||||
|
||||
/* Settings */
|
||||
$this->public_key = trim( $this->settings['recaptcha_public_key'] );
|
||||
$this->private_key = trim( $this->settings['recaptcha_private_key'] );
|
||||
$this->useSSL = $this->settings['logins_over_https'];
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the challenge HTML (javascript and non-javascript version).
|
||||
* This is called from the browser, and the resulting reCAPTCHA HTML widget
|
||||
* is embedded within the HTML form it was called from.
|
||||
*
|
||||
* @access public
|
||||
* @return string Form HTML to display
|
||||
*/
|
||||
public function getTemplate()
|
||||
{
|
||||
if ( ! $this->public_key )
|
||||
{
|
||||
return '';
|
||||
}
|
||||
|
||||
if ($this->useSSL)
|
||||
{
|
||||
$server = RECAPTCHA_API_SECURE_SERVER;
|
||||
}
|
||||
else
|
||||
{
|
||||
$server = RECAPTCHA_API_SERVER;
|
||||
}
|
||||
|
||||
$html = '';
|
||||
$html .= "<script type='text/javascript'>
|
||||
var RecaptchaOptions = {
|
||||
lang : '{$this->settings['recaptcha_language']}',
|
||||
theme : '{$this->settings['recaptcha_theme']}'
|
||||
};
|
||||
</script>";
|
||||
|
||||
$html .= '<script type="text/javascript" src="'. $server . '/challenge?k=' . $this->public_key . '"></script>
|
||||
<noscript>
|
||||
<iframe src="'. $server . '/noscript?k=' . $this->public_key . '" height="300" width="500" frameborder="0"></iframe><br/>
|
||||
<textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea>
|
||||
<input type="hidden" name="recaptcha_response_field" value="manual_challenge"/>
|
||||
</noscript>';
|
||||
|
||||
//-----------------------------------------
|
||||
// Return Template Bit
|
||||
//-----------------------------------------
|
||||
|
||||
return $this->registry->output->getTemplate('global_other')->captchaRecaptcha( $html );
|
||||
}
|
||||
|
||||
/**
|
||||
* Validate the input code
|
||||
*
|
||||
* @access public
|
||||
* @return boolean Validation successful
|
||||
* @since 1.0
|
||||
*/
|
||||
public function validate()
|
||||
{
|
||||
if ( !$this->private_key )
|
||||
{
|
||||
return '';
|
||||
}
|
||||
|
||||
$captcha_unique_id = $_REQUEST['recaptcha_challenge_field'];
|
||||
$captcha_input = $_REQUEST['recaptcha_response_field'];
|
||||
|
||||
if ( $captcha_input == null || strlen($captcha_input) == 0 || $captcha_unique_id == null || strlen($captcha_unique_id) == 0)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
$response = $this->_recaptchaPost( RECAPTCHA_VERIFY_SERVER, "/verify",
|
||||
array (
|
||||
'privatekey' => $this->private_key,
|
||||
'remoteip' => $this->member->ip_address,
|
||||
'challenge' => $captcha_unique_id,
|
||||
'response' => $captcha_input
|
||||
)
|
||||
);
|
||||
|
||||
$answers = explode( "\n", $response [1] );
|
||||
|
||||
if ( trim($answers[0]) == 'true' )
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
else
|
||||
{
|
||||
/**
|
||||
* It's an error
|
||||
*/
|
||||
$this->error = $answers[1];
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets a URL where the user can sign up for reCAPTCHA. If your application
|
||||
* has a configuration page where you enter a key, you should provide a link
|
||||
* using this function.
|
||||
*
|
||||
* @access public
|
||||
* @param string $domain The domain where the page is hosted
|
||||
* @param string $appname The name of your application
|
||||
*/
|
||||
public function getSignupUrl( $domain = null, $appname = null )
|
||||
{
|
||||
return "http://recaptcha.net/api/getkey?" . $this->_encodeQueryString( array( 'domain' => $domain, 'app' => $appname ) );
|
||||
}
|
||||
|
||||
/**
|
||||
* Submits an HTTP POST to a reCAPTCHA server
|
||||
*
|
||||
* @access private
|
||||
* @param string $host
|
||||
* @param string $path
|
||||
* @param array $data
|
||||
* @param int port
|
||||
* @return array response
|
||||
*/
|
||||
private function _recaptchaPost( $host, $path, $data, $port = 80 )
|
||||
{
|
||||
$req = $this->_encodeQueryString( $data );
|
||||
|
||||
$http_request = "POST $path HTTP/1.0\r\n";
|
||||
$http_request .= "Host: $host\r\n";
|
||||
$http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n";
|
||||
$http_request .= "Content-Length: " . strlen($req) . "\r\n";
|
||||
$http_request .= "User-Agent: reCAPTCHA/PHP\r\n";
|
||||
$http_request .= "\r\n";
|
||||
$http_request .= $req;
|
||||
|
||||
$response = '';
|
||||
|
||||
if( false == ( $fs = @fsockopen($host, $port, $errno, $errstr, 10) ) )
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
fwrite($fs, $http_request);
|
||||
|
||||
while ( !feof($fs) )
|
||||
{
|
||||
$response .= fgets($fs, 1160); // One TCP-IP packet
|
||||
}
|
||||
|
||||
fclose($fs);
|
||||
|
||||
$response = explode( "\r\n\r\n", $response, 2 );
|
||||
|
||||
return $response;
|
||||
}
|
||||
|
||||
/**
|
||||
* Encode array of data into a query string
|
||||
*
|
||||
* @access private
|
||||
* @param array $data
|
||||
* @return string query string
|
||||
*/
|
||||
private function _encodeQueryString( $data )
|
||||
{
|
||||
$req = "";
|
||||
|
||||
foreach ( $data as $key => $value )
|
||||
{
|
||||
$req .= $key . '=' . urlencode( stripslashes($value) ) . '&';
|
||||
}
|
||||
|
||||
// Cut the last '&'
|
||||
$req = substr( $req, 0, strlen($req)-1 );
|
||||
|
||||
return $req;
|
||||
}
|
||||
|
||||
}
|
||||
Reference in new issue
Block a user