<?php /* Question2Answer by Gideon Greenspan and contributors http://www.question2answer.org/ Description: Server-side response to Ajax version check requests This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. More about this license: http://www.question2answer.org/license.php */ require_once QA_INCLUDE_DIR . 'app/admin.php'; require_once QA_INCLUDE_DIR . 'app/users.php'; if (qa_get_logged_in_level() < QA_USER_LEVEL_ADMIN) { $response = array( 'result' => 'error', 'error' => array( 'message' => qa_lang_html('admin/no_privileges'), ), ); echo json_encode($response); return; } $uri = qa_post_text('uri'); $currentVersion = qa_post_text('version'); $isCore = qa_post_text('isCore') === "true"; if ($isCore) { $contents = qa_retrieve_url($uri); if (strlen($contents) > 0) { if (qa_qa_version_below($contents)) { $versionResponse = '<a href="https://github.com/q2a/question2answer/releases" style="color:#d00;">' . qa_lang_html_sub('admin/version_get_x', qa_html('v' . $contents)) . '</a>'; } else { $versionResponse = qa_html($contents); // Output the current version number } } else { $versionResponse = qa_lang_html('admin/version_latest_unknown'); } } else { $metadataUtil = new \Q2A\Util\Metadata(); $metadata = $metadataUtil->fetchFromUrl($uri); if (strlen(@$metadata['version']) > 0) { if (version_compare($currentVersion, $metadata['version']) < 0) { if (qa_qa_version_below(@$metadata['min_q2a'])) { $versionResponse = strtr(qa_lang_html('admin/version_requires_q2a'), array( '^1' => qa_html('v' . $metadata['version']), '^2' => qa_html($metadata['min_q2a']), )); } elseif (qa_php_version_below(@$metadata['min_php'])) { $versionResponse = strtr(qa_lang_html('admin/version_requires_php'), array( '^1' => qa_html('v' . $metadata['version']), '^2' => qa_html($metadata['min_php']), )); } else { $versionResponse = qa_lang_html_sub('admin/version_get_x', qa_html('v' . $metadata['version'])); if (strlen(@$metadata['uri'])) { $versionResponse = '<a href="' . qa_html($metadata['uri']) . '" style="color:#d00;">' . $versionResponse . '</a>'; } } } else { $versionResponse = qa_lang_html('admin/version_latest'); } } else { $versionResponse = qa_lang_html('admin/version_latest_unknown'); } } $response = array( 'result' => 'success', 'html' => $versionResponse, ); echo json_encode($response);