/**
* Check with the webtrees.net server for the latest version of webtrees.
* Fetching the remote file can be slow, so check infrequently, and cache the result.
* Pass the current versions of webtrees, PHP and MySQL, as the response
* may be different for each. The server logs are used to generate
* installation statistics which can be found at http://svn.webtrees.net/statistics.html
*
* @return null|string
*/
public static function fetchLatestVersion()
{
$last_update_timestamp = Site::getPreference('LATEST_WT_VERSION_TIMESTAMP');
if ($last_update_timestamp < WT_TIMESTAMP - 24 * 60 * 60) {
$row = Database::prepare("SHOW VARIABLES LIKE 'version'")->fetchOneRow();
$params = '?w=' . WT_VERSION . '&p=' . PHP_VERSION . '&m=' . $row->value . '&o=' . (DIRECTORY_SEPARATOR === '/' ? 'u' : 'w');
$latest_version_txt = File::fetchUrl('http://dev.webtrees.net/build/latest-version.txt' . $params);
if ($latest_version_txt) {
Site::setPreference('LATEST_WT_VERSION', $latest_version_txt);
Site::setPreference('LATEST_WT_VERSION_TIMESTAMP', WT_TIMESTAMP);
return $latest_version_txt;
} else {
// Cannot connect to server - use cached version (if we have one)
return Site::getPreference('LATEST_WT_VERSION');
}
} else {
return Site::getPreference('LATEST_WT_VERSION');
}
}
/**
* Retrieve the number of visitors from Piwik, for a given period.
*
* @param string $block_id
* @param string $period
* @param (null|int) Number of visits
*/
private function getNumberOfVisitsPiwik($block_id, $period = 'year')
{
$piwik_url = $this->module->getBlockSetting($block_id, 'piwik_url');
$piwik_siteid = $this->module->getBlockSetting($block_id, 'piwik_siteid');
$piwik_token = $this->module->getBlockSetting($block_id, 'piwik_token');
if ($piwik_url && strlen($piwik_url) > 0 && $piwik_siteid && strlen($piwik_siteid) > 0 && $piwik_token && strlen($piwik_token)) {
// calling Piwik REST API
$url = $piwik_url;
$url .= '?module=API&method=VisitsSummary.getVisits';
$url .= '&idSite=' . $piwik_siteid . '&period=' . $period . '&date=today';
$url .= '&format=PHP';
$url .= '&token_auth=' . $piwik_token;
if ($fetched = File::fetchUrl($url)) {
$content = @unserialize($fetched);
if (is_numeric($content)) {
return $content;
}
}
}
return null;
}
echo '<br>', I18N::translate('The family tree has been exported to %s.', Html::filename($filename)), $icon_success;
} catch (\ErrorException $ex) {
echo '<br>', I18N::translate('The file %s could not be created.', Html::filename($filename)), $icon_failure;
}
}
echo '</li>';
////////////////////////////////////////////////////////////////////////////////
// Download a .ZIP file containing the new code
////////////////////////////////////////////////////////////////////////////////
echo '<li>', I18N::translate('Download %s…', Html::filename($download_url_html));
$zip_file = WT_DATA_DIR . basename($download_url);
$zip_dir = WT_DATA_DIR . basename($download_url, '.zip');
$zip_stream = fopen($zip_file, 'w');
reset_timeout();
$start_time = microtime(true);
File::fetchUrl($download_url, $zip_stream);
$end_time = microtime(true);
$zip_size = filesize($zip_file);
fclose($zip_stream);
echo '<br>', I18N::translate('%1$s KB were downloaded in %2$s seconds.', I18N::number($zip_size / 1024), I18N::number($end_time - $start_time, 2));
if ($zip_size) {
echo $icon_success;
} else {
echo $icon_failure;
// Guess why we might have failed...
if (preg_match('/^https:/', $download_url) && !in_array('ssl', stream_get_transports())) {
echo '<br>', I18N::translate('This server does not support secure downloads using HTTPS.');
}
}
echo '</li>';
////////////////////////////////////////////////////////////////////////////////
