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<?php
/*
Question2Answer by Gideon Greenspan and contributors
http://www.question2answer.org/
File: qa-include/qa-ajax-version.php
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) {
echo "QA_AJAX_RESPONSE\n0\n" . qa_lang_html('admin/no_privileges');
return;
}
$uri = qa_post_text('uri');
$version = 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)) {
$response =
'<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 {
$response = qa_html($contents); // Output the current version number
}
} else {
$response = qa_lang_html('admin/version_latest_unknown');
}
} else {
$metadataUtil = new Q2A_Util_Metadata();
$metadata = $metadataUtil->fetchFromUrl($uri);
if (strlen(@$metadata['version']) > 0) {
if (strcmp($metadata['version'], $version)) {
if (qa_qa_version_below(@$metadata['min_q2a'])) {
$response = 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'])) {
$response = strtr(qa_lang_html('admin/version_requires_php'), array(
'^1' => qa_html('v' . $metadata['version']),
'^2' => qa_html($metadata['min_php']),
));
} else {
$response = qa_lang_html_sub('admin/version_get_x', qa_html('v' . $metadata['version']));
if (strlen(@$metadata['uri'])) {
$response = '<a href="' . qa_html($metadata['uri']) . '" style="color:#d00;">' . $response . '</a>';
}
}
} else {
$response = qa_lang_html('admin/version_latest');
}
} else {
$response = qa_lang_html('admin/version_latest_unknown');
}
}
echo "QA_AJAX_RESPONSE\n1\n" . $response;