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Файловый менеджер - Редактировать - /home/lmsyaran/public_html/joomla5/plugins/fabrik_element/captcha/captcha.php

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<?php /** * Plugin element to captcha * * @package Joomla.Plugin * @subpackage Fabrik.element.captcha * @copyright Copyright (C) 2005-2020 Media A-Team, Inc. - All rights reserved. * @license GNU/GPL http://www.gnu.org/copyleft/gpl.html / // No direct access defined('_JEXEC') or die('Restricted access'); use Joomla\CMS\Language\Text; use Joomla\CMS\Environment\Browser; use Joomla\CMS\Factory; use Joomla\String\StringHelper; use ReCaptcha\ReCaptcha; require_once JPATH_ROOT . '/plugins/fabrik_element/captcha/vendor/autoload.php'; /* * Plugin element to captcha * * @package Joomla.Plugin * @subpackage Fabrik.element.captcha * @since 3.0 / class PlgFabrik_ElementCaptcha extends PlgFabrik_Element { protected $font = 'monofont.ttf'; /* * Generate captcha text * * @param int $characters number of characters to generate * * @return string captcha text / protected function _generateCode($characters) { // List all possible characters, similar looking characters and vowels have been removed $possible = '23456789bcdfghjkmnpqrstvwxyz'; $code = ''; $i = 0; while ($i < $characters) { $code .= StringHelper::substr($possible, mt_rand(0, StringHelper::strlen($possible) - 1), 1); $i++; } return $code; } /* * Get the element's HTML label * * @param int $repeatCounter group repeat counter * @param string $tmpl form template * * @return string label / public function getLabel($repeatCounter, $tmpl = '') { $params = $this->getParams(); if ($this->user->id != 0) { if ($params->get('captcha-showloggedin', 0) == 0) { return ''; } } if ($params->get('captcha-method') == 'invisible') { return ''; } return parent::getLabel($repeatCounter, $tmpl); } /* * Is the element hidden or not - if not set then return false * * @return bool / public function isHidden() { $params = $this->getParams(); if ($this->user->get('id') != 0) { if ($params->get('captcha-showloggedin', 0) == 0) { return true; } } return parent::isHidden(); } /* * Check user can view the read only element OR view in list view * $$$ rob 14/03/2012 always returns false now - cant see a need to show it in the details / list view * * @param string $view View list/form @since 3.0.7 * * @return bool can view or not / public function canView($view = 'form') { return false; } /* * Check if the user can use the active element * * @param string $location To trigger plugin on * @param string $event To trigger plugin on * * @return bool can use or not / public function canUse($location = null, $event = null) { $params = $this->getParams(); if ($this->user->get('id') != 0) { if ($params->get('captcha-showloggedin', 0) == 0) { return false; } } return parent::canUse(); } /* * Gets the challenge HTML (AJAX version). * This is called from the browser, and the resulting reCAPTCHA HTML widget * is embedded within the HTML form it was called from. * * @param string $id the HTML id for the div * @param string $pubkey A public key for reCAPTCHA * @param string $theme Theme to use, default red * @param string $lang Language to use, default en * @param string $error The error given by reCAPTCHA (optional, default is null) * @param boolean $use_ssl Should the request be made over ssl? (optional, default is false) * * @return string - The HTML to be embedded in the user's form. / / reCaptcha v1 is not longer supported function fabrik_recaptcha_get_html($id, $pubkey, $theme = "red", $lang = "en", $error = null, $use_ssl = false) { if ($pubkey == null \|\| $pubkey == '') { die ("To use reCAPTCHA you must get an API key from <a href='https://www.google.com/recaptcha/admin/create'>https://www.google.com/recaptcha/admin/create</a>"); } if ($use_ssl) { $server = RECAPTCHA_API_SECURE_SERVER; } else { $server = RECAPTCHA_API_SERVER; } //$str = '<script type="text/javascript" src="' . $server . '/js/recaptcha_ajax.js"></script> '; $str = ' <div id="' . $id . '"></div> '; $document = Factory::getDocument(); $document->addScript($server . '/js/recaptcha_ajax.js'); FabrikHelperHTML::addScriptDeclaration( 'window.addEvent("fabrik.loaded", function() { Recaptcha.create( "' . $pubkey . '", "' . $id . '", { theme: "' . $theme . '", lang : "' . $lang . '" } ); });' ); return $str; } / /* * Draws the html form element * * @param array $data to pre-populate element with * @param int $repeatCounter repeat group counter * * @return string elements html / public function render($data, $repeatCounter = 0) { $name = $this->getHTMLName($repeatCounter); $id = $this->getHTMLId($repeatCounter); $element = $this->getElement(); $params = $this->getParams(); $value = $this->getValue($data, $repeatCounter); if (!$this->isEditable()) { if ($element->hidden == '1') { return '<!-- ' . stripslashes($value) . ' -->'; } else { return stripslashes($value); } } // Old v1 reCaptcha not longer supported, handle like v2 reCaptcha(checkbox) - here called 'nocaptcha' if ($params->get('captcha-method') == 'nocaptcha' \|\| $params->get('captcha-method') == 'recaptcha') { $layout = $this->getLayout('nocaptcha'); $displayData = new stdClass; $displayData->id = $id; $displayData->name = $name; $displayData->site_key = $params->get('recaptcha_publickey'); $displayData->lang = FabrikWorker::replaceWithLanguageTags(StringHelper::strtolower($params->get('recaptcha_lang', 'en'))); return $layout->render($displayData); } elseif ($params->get('captcha-method') == 'invisible') { $layout = $this->getLayout('nocaptcha-invisible'); $displayData = new stdClass; $displayData->id = $id; $displayData->name = $name; $displayData->site_key = $params->get('recaptcha_publickey'); $displayData->lang = FabrikWorker::replaceWithLanguageTags(StringHelper::strtolower($params->get('recaptcha_lang', 'en'))); return $layout->render($displayData); } else { if (!function_exists('imagettfbbox')) { throw new RuntimeException(Text::_('PLG_FABRIK_ELEMENT_CAPTCHA_STANDARD_TTF_ERROR')); } $size = $element->width; $fontSize = $params->get('captcha-font-size', 22); $angle = $params->get('captcha-angle', 0); $padding = $params->get('captcha-padding', 10); $characters = $params->get('captcha-chars', 6); $code = $this->_generateCode($characters); $this->session->set('com_' . $this->package . '.element.captcha.security_code', $code); $type = $params->get('password') == '1' ? 'password' : 'text'; if ($this->elementError != '') { $type .= ' elementErrorHighlight'; } if ($element->hidden == '1') { $type = 'hidden'; } $layout = $this->getLayout('form'); $displayData = new stdClass; $displayData->id = $id; $displayData->name = $name; $formId = $this->getFormModel()->getId(); $rowId = $this->app->input->get('rowid', '0'); $elementId = $this->getId(); $displayData->url = COM_FABRIK_LIVESITE . 'index.php?option=com_' . $this->package . '&task=plugin.pluginAjax&plugin=captcha&method=ajax_image&format=raw&element_id=' . $elementId . '&formid=' . $formId . '&rowid=' . $rowId . '&repeatcount=' . $repeatCounter; $displayData->type = $type; $displayData->size = $size; return $layout->render($displayData); } } /* * Internal element validation * * @param array $data form data * @param int $repeatCounter repeat group counter * * @return bool / public function validate($data, $repeatCounter = 0) { if ($this->app->input->get('task', '') === 'form.ajax_validate') { return true; } $params = $this->getParams(); $input = $this->app->input; // if this is the submit from the confirmation plugin, we already validated when rendering confirmation page if ($this->app->input->get('fabrik_confirmation', '') === '2') { return true; } if (!$this->canUse()) { return true; } $method = $params->get('captcha-method', ''); if ($method === 'nocaptcha' \|\| $method === 'invisible' \|\| $method === 'recaptcha') { if ($input->get('g-recaptcha-response')) { $privateKey = $params->get('recaptcha_privatekey'); / * Some Windows boxes with CA cert bundle issues may fail using CurlPost, because the ReCaptcha lib * asserts verify_peer, so check to see if our global setting is turned off, if so try using socket instead / if ($this->config->get('verify_peer', '1') === '0') { $noCaptcha = new ReCaptcha($privateKey, new \ReCaptcha\RequestMethod\SocketPost()); } else { $noCaptcha = new ReCaptcha($privateKey, new \ReCaptcha\RequestMethod\CurlPost()); } $response = $input->get('g-recaptcha-response'); $server = $input->server->get('REMOTE_ADDR'); $resp = $noCaptcha->verify($response, $server); if ($resp->isSuccess()) { return true; } else { if (FabrikHelperHTML::isDebug()) { $msg = "noCaptcha error: "; foreach ($resp->getErrorCodes() as $code) { $msg .= '<tt>' . $code . '</tt> '; } $this->app->enqueueMessage($msg); } return false; } } if (FabrikHelperHTML::isDebug()) { $this->app->enqueueMessage("No g-recaptcha-response!"); } return false; } else { $this->getParams(); if ($this->session->get('com_' . $this->package . '.element.captcha.security_code', null) != $data) { return false; } return true; } } /* * Get validation error - run through Text * * @return string / public function getValidationErr() { $params = $this->getParams(); $method = $params->get('captcha-method', 'standard'); return Text::_('PLG_ELEMENT_CAPTCHA_' . strtoupper($method) . '_FAILED'); } /* * Determine if the element should run its validation plugins on form submission * * @return bool default true / public function mustValidate() { if (!$this->canUse() && !$this->canView()) { return false; } return parent::mustValidate(); } /* * Returns javascript which creates an instance of the class defined in formJavascriptClass() * * @param int $repeatCounter Repeat group counter * * @return array / public function elementJavascript($repeatCounter) { $params = $this->getParams(); if ($params->get('captcha-showloggedin', 0) == 1 \|\| $this->user->get('id') == 0) { $params = $this->getParams(); $id = $this->getHTMLId($repeatCounter); $opts = $this->getElementJSOptions($repeatCounter); $opts->method = $params->get('captcha-method'); $opts->siteKey = $params->get('recaptcha_publickey'); return array('FbCaptcha', $id, $opts); } return array(); } /* * Used to format the data when shown in the form's email * * @param mixed $value element's data * @param array $data form records data * @param int $repeatCounter repeat group counter * * @return string formatted value / public function getEmailValue($value, $data = array(), $repeatCounter = 0) { return ""; } /* * $$$ e-kinst Convert a hex colour to RGB * * @param string $hexColor 3- or 6-digits hex color with optional leading '#' * @param string $default default hex color if first param invalid * * @return string as 'R+G+B' where R,G,B are decimal / private function _getRGBcolor($hexColor, $default = 'FF0000') { $regex = '/^#?(([\da-f])([\da-f])([\da-f])\|([\da-f]{2})([\da-f]{2})([\da-f]{2}))$/i'; $rgb = array(); if (!preg_match($regex, $hexColor, $rgb)) { if (!preg_match($regex, $default, $rgb)) { // In case where $default invalid also (call error) $rgb = array('FF0000', 'FF0000', 'FF', '00', '00'); } } array_shift($rgb); array_shift($rgb); if (count($rgb) > 3) { $rgb = array_slice($rgb, 3, 3); } for ($i = 0; $i < 3; $i++) { if (StringHelper::strlen($rgb[$i]) == 1) { $rgb[$i] .= $rgb[$i]; } $rgb[$i] = intval($rgb[$i], 16); } return $rgb; } public function onAjax_image() { $package = $this->app->getUserState('com_fabrik.package', 'fabrik'); $this->setId($this->app->input->getInt('element_id')); $this->loadMeForAjax(); $this->getElement(); $params = $this->getParams(); $code = $this->session->get('com_' . $package . '.element.captcha.security_code', false); if (empty($code)) { exit; } $fontSize = $params->get('captcha-font-size', 22); $angle = $params->get('captcha-angle', 0); $padding = $params->get('captcha-padding', 10); $nc = $params->get('captcha-noise-color', '0000FF'); $nc = $this->_getRGBcolor($nc, '0000FF'); $tc = $params->get('captcha-text-color', '0000FF'); $tc = $this->_getRGBcolor($tc, '0000FF'); $bc = $params->get('captcha-bg', 'FFFFFF'); $bc = $this->_getRGBcolor($bc, 'FFFFFF'); // Create textbox and add text $fontPath = JPATH_SITE . '/plugins/fabrik_element/captcha/' . $this->font; if (function_exists('imagettfbbox')) { $the_box = $this->calculateTextBox($code, $fontPath, $fontSize, $angle); } else { $the_box = array('width' => 150, 'height' => 50, 'top' => 0, 'left' => 0); } $imgWidth = $the_box["width"] + $padding; $imgHeight = $the_box["height"] + $padding; $image = imagecreate($imgWidth, $imgHeight); $background_color = imagecolorallocate($image, $bc[0], $bc[1], $bc[2]); $text_color = imagecolorallocate($image, $tc[0], $tc[1], $tc[2]); $noise_color = imagecolorallocate($image, $nc[0], $nc[1], $nc[2]); // Generate random dots in background for ($i = 0; $i < ($imgWidth $imgHeight) / 3; $i++) { imagefilledellipse($image, mt_rand(0, $imgWidth), mt_rand(0, $imgHeight), 1, 1, $noise_color); } // Generate random lines in background for ($i = 0; $i < ($imgWidth * $imgHeight) / 150; $i++) { imageline($image, mt_rand(0, $imgWidth), mt_rand(0, $imgHeight), mt_rand(0, $imgWidth), mt_rand(0, $imgHeight), $noise_color); } $left = $the_box["left"] + ($imgWidth / 2) - ($the_box["width"] / 2); $top = $the_box["top"] + ($imgHeight / 2) - ($the_box["height"] / 2); if (function_exists('imagettfbbox')) { imagettftext( $image, $fontSize, $angle, $left, $top, $text_color, $fontPath, $code ); } else { imagestring($image, 6, $left, $top, $code, $text_color); } // ... set no-cache (and friends) headers ... // Some time in the past header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); header("Cache-Control: no-store, no-cache, must-revalidate"); header("Cache-Control: post-check=0, pre-check=0", false); header("Pragma: no-cache"); header('Accept-Ranges: bytes'); header('Content-Type: image/jpeg'); ob_start(); imagejpeg($image); $img = ob_get_contents(); /** Felixkat - Clean has been replaced with flush due to a image truncating issue Haven't been able to pinpoint the exact issue yet, possibly PHP version related http://fabrikar.com/forums/showthread.php?p=147606#post147606 / // Not this: ob_end_clean(); ob_end_flush(); // For some weird reason if we do this in 5.2.x the image gets truncated // http://fabrikar.com/forums/showthread.php?t=26941&page=5 if (version_compare(PHP_VERSION, '5.3.0') < 0) { header('Content-Length: ' . StringHelper::strlen($img)); } imagedestroy($image); echo $img; // ... and we're done. exit(); } /* * Simple function that calculates the exact bounding box (single pixel precision). * The function returns an associative array with these keys: * left, top: coordinates you will pass to imagettftext * width, height: dimension of the image you have to create * * @param string $code Code * @param string $fontPath Font path * @param int $fontsize Font size * @param int $angle Text angle * * @return array */ private function calculateTextBox($code, $fontPath, $fontsize, $angle) { $rect = imagettfbbox($fontsize, $angle, $fontPath, $code); $minX = min(array($rect[0], $rect[2], $rect[4], $rect[6])); $maxX = max(array($rect[0], $rect[2], $rect[4], $rect[6])); $minY = min(array($rect[1], $rect[3], $rect[5], $rect[7])); $maxY = max(array($rect[1], $rect[3], $rect[5], $rect[7])); return array ( "left" => abs($minX) - 1, "top" => abs($minY) - 1, "width" => $maxX - $minX, "height" => $maxY - $minY, "box" => $rect ); } }

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