mirror of
https://github.com/Lastorder-DC/rhymix.git
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4d272994dd
git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0_english@8278 201d5d3c-b55e-5fd7-737f-ddc643e51545
264 lines
8.5 KiB
PHP
264 lines
8.5 KiB
PHP
<?php
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if(!defined("__ZBXE__")) exit();
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/**
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* @file captcha.addon.php
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* @author NHN (developers@xpressengine.com)
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* @brief Captcha for a particular action
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* English alphabets and voice verification added
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**/
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if(!class_exists('AddonCaptcha'))
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{
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class AddonCaptcha
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{
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var $addon_info;
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function setInfo(&$addon_info)
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{
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$this->addon_info = $addon_info;
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}
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function before_module_proc()
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{
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if($this->addon_info->act_type == 'everytime' && $_SESSION['captcha_authed']) {
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unset($_SESSION['captcha_authed']);
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}
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}
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function before_module_init(&$ModuleHandler)
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{
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$logged_info = Context::get('logged_info');
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if($logged_info->is_admin == 'Y' || $logged_info->is_site_admin) return false;
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if($this->addon_info->target != 'all' && Context::get('is_logged')) return false;
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if($_SESSION['captcha_authed']) return false;
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$target_acts = array('procBoardInsertDocument','procBoardInsertComment','procIssuetrackerInsertIssue','procIssuetrackerInsertHistory','procTextyleInsertComment');
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if($this->addon_info->apply_find_account=='apply') $target_acts[] = 'procMemberFindAccount';
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if($this->addon_info->apply_resend_auth_mail=='apply') $target_acts[] = 'procMemberResendAuthMail';
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if($this->addon_info->apply_signup=='apply') $target_acts[] = 'procMemberInsert';
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if(Context::getRequestMethod()!='XMLRPC' && Context::getRequestMethod()!=='JSON')
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{
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Context::addHtmlHeader('<script type="text/javascript"> var captchaTargetAct = new Array("'.implode('","',$target_acts).'"); </script>');
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Context::addJsFile('./addons/captcha/captcha.js',false, '', null, 'body');
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}
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// compare session when calling actions such as writing a post or a comment on the board/issue tracker module
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if(!$_SESSION['captcha_authed'] && in_array(Context::get('act'), $target_acts)) {
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Context::loadLang('./addons/captcha/lang');
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$ModuleHandler->error = "captcha_denied";
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}
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return true;
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}
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function before_module_init_setCaptchaSession()
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{
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if($_SESSION['captcha_authed']) return false;
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// Load language files
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Context::loadLang(_XE_PATH_.'addons/captcha/lang');
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// Generate keywords
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$arr = range('A','Y');
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shuffle($arr);
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$arr = array_slice($arr,0,6);
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$_SESSION['captcha_keyword'] = join('', $arr);
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$target = Context::getLang('target_captcha');
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header("Content-Type: text/xml; charset=UTF-8");
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header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
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header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
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header("Cache-Control: no-store, no-cache, must-revalidate");
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header("Cache-Control: post-check=0, pre-check=0", false);
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header("Pragma: no-cache");
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printf("<response>\r\n <error>0</error>\r\n <message>success</message>\r\n <about_captcha><![CDATA[%s]]></about_captcha>\r\n <captcha_reload><![CDATA[%s]]></captcha_reload>\r\n <captcha_play><![CDATA[%s]]></captcha_play>\r\n <cmd_input><![CDATA[%s]]></cmd_input>\r\n <cmd_cancel><![CDATA[%s]]></cmd_cancel>\r\n </response>"
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,Context::getLang('about_captcha')
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,Context::getLang('captcha_reload')
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,Context::getLang('captcha_play')
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,Context::getLang('cmd_input')
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,Context::getLang('cmd_cancel')
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);
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Context::close();
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exit();
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}
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function before_module_init_captchaImage()
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{
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if($_SESSION['captcha_authed']) return false;
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$keyword = $_SESSION['captcha_keyword'];
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$im = $this->createCaptchaImage($keyword);
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header("Cache-Control: ");
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header("Pragma: ");
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header("Content-Type: image/png");
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imagepng($im);
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imagedestroy($im);
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Context::close();
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exit();
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}
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function createCaptchaImage($string)
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{
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$arr = array();
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for($i=0,$c=strlen($string);$i<$c;$i++) $arr[] = $string{$i};
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// Font site
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$w = 18;
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$h = 25;
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// Character length
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$c = count($arr);
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// Character image
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$im = array();
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// Create an image by total size
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$im[] = imagecreate(($w+2)*count($arr), $h);
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$deg = range(-30,30);
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shuffle($deg);
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// Create an image for each letter
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foreach($arr as $i => $str)
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{
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$im[$i+1] = @imagecreate($w, $h);
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$background_color = imagecolorallocate($im[$i+1], 255, 255, 255);
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$text_color = imagecolorallocate($im[$i+1], 0, 0, 0);
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// Control font size
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$ran = range(1,20);
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shuffle($ran);
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if(function_exists('imagerotate'))
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{
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imagestring($im[$i+1], (array_pop($ran)%3)+3, 2, (array_pop($ran)%8), $str, $text_color);
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$im[$i+1] = imagerotate($im[$i+1], array_pop($deg), 0);
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$background_color = imagecolorallocate($im[$i+1], 255, 255, 255);
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imagecolortransparent($im[$i+1], $background_color);
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}
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else
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{
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imagestring($im[$i+1], (array_pop($ran)%3)+3, 2, (array_pop($ran)%4), $str, $text_color);
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}
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}
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// Combine images of each character
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for($i=1;$i<count($im);$i++)
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{
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imagecopy($im[0],$im[$i],(($w+2)*($i-1)),0,0,0,$w,$h);
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imagedestroy($im[$i]);
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}
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// Larger image
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$big_count = 2;
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$big = imagecreatetruecolor(($w+2)*$big_count*$c, $h*$big_count);
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imagecopyresized($big, $im[0], 0, 0, 0, 0, ($w+2)*$big_count*$c, $h*$big_count, ($w+2)*$c, $h);
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imagedestroy($im[0]);
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if(function_exists('imageantialias')) imageantialias($big,true);
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// Background line
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$line_color = imagecolorallocate($big, 0, 0, 0);
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$w = ($w+2)*$big_count*$c;
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$h = $h*$big_count;
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$d = array_pop($deg);
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for($i=-abs($d);$i<$h+abs($d);$i=$i+7) imageline($big,0,$i+$d,$w,$i,$line_color);
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$x = range(0,($w-10));
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shuffle($x);
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for($i=0;$i<200;$i++) imagesetpixel($big,$x[$i]%$w,$x[$i+1]%$h,$line_color);
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return $big;
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}
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function before_module_init_captchaAudio()
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{
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if($_SESSION['captcha_authed']) return false;
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$keyword = strtoupper($_SESSION['captcha_keyword']);
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$data = $this->createCaptchaAudio($keyword);
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header('Content-type: audio/mpeg');
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header("Content-Disposition: attachment; filename=\"captcha_audio.mp3\"");
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header('Cache-Control: no-store, no-cache, must-revalidate');
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header('Expires: Sun, 1 Jan 2000 12:00:00 GMT');
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header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . 'GMT');
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header('Content-Length: ' . strlen($data));
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echo $data;
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Context::close();
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exit();
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}
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function createCaptchaAudio($string)
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{
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$data = '';
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$_audio = './addons/captcha/audio/F_%s.mp3';
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for($i=0,$c=strlen($string);$i<$c;$i++)
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{
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$_data = FileHandler::readFile(sprintf($_audio, $string{$i}));
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$start = rand(5, 68); // Random start in 4-byte header and 64 byte data
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$datalen = strlen($_data) - $start - 256; // Last unchanged 256 bytes
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for($j=$start;$j<$datalen;$j+=64)
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{
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$ch = ord($_data{$j});
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if($ch<9 || $ch>119) continue;
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$_data{$j} = chr($ch+rand(-8,8));
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}
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$data .= $_data;
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}
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return $data;
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}
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function before_module_init_captchaCompare()
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{
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if($_SESSION['captcha_authed']) return false;
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if(strtoupper($_SESSION['captcha_keyword']) == strtoupper(Context::get('secret_text'))) $_SESSION['captcha_authed'] = true;
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else unset($_SESSION['captcha_authed']);
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header("Content-Type: text/xml; charset=UTF-8");
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header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
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header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
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header("Cache-Control: no-store, no-cache, must-revalidate");
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header("Cache-Control: post-check=0, pre-check=0", false);
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header("Pragma: no-cache");
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print("<response>\r\n<error>0</error>\r\n<message>success</message>\r\n</response>");
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Context::close();
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exit();
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}
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}
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$GLOBALS['__AddonCaptcha__'] = new AddonCaptcha;
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$GLOBALS['__AddonCaptcha__']->setInfo($addon_info);
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}
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$oAddonCaptcha = &$GLOBALS['__AddonCaptcha__'];
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if(method_exists(&$oAddonCaptcha, $called_position))
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{
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if(!call_user_func(array(&$oAddonCaptcha, $called_position), &$this)) return false;
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}
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$addon_act = Context::get('captcha_action');
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if($addon_act && method_exists(&$oAddonCaptcha, $called_position.'_'.$addon_act))
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{
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if(!call_user_func(array(&$oAddonCaptcha, $called_position.'_'.$addon_act), &$this)) return false;
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}
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?>
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