/**
* Check if the plugin can render for the provided browser
*
* @return boolean
*/
protected function canRender()
{
$browser = new \Hubzero\Browser\Detector();
if ($allowed = trim($this->params->get('browsers'))) {
$browsers = array();
$allowed = str_replace("\r", '', $allowed);
$allowed = str_replace('\\n', "\n", $allowed);
$allowed = explode("\n", $allowed);
foreach ($allowed as $allow) {
$allow = trim($allow);
if (preg_match('/(.+?),\\s+([^\\s]+)\\s+(\\d+)\\.(\\d+)/i', $allow, $matches)) {
$req = new stdClass();
$req->name = strtolower(trim($matches[2]));
$req->major = intval($matches[3]);
$req->minor = intval($matches[4]);
$req->os = strtolower(trim($matches[1]));
$browsers[] = $req;
}
}
$matched = false;
foreach ($browsers as $minimum) {
if ($minimum->os != '*' && $minimum->os != strtolower($browser->platform())) {
continue;
}
if ($minimum->name != strtolower($browser->name())) {
continue;
}
// If we get to here, we have a matching OS and browser
if ($minimum->major > $browser->major()) {
return false;
}
if ($minimum->major == $browser->major() && $minimum->minor > $browser->minor()) {
return false;
}
$matched = true;
}
if (!$matched) {
return false;
}
}
if ($regexes = trim($this->params->get('regexes'))) {
$regexes = str_replace("\r", '', $regexes);
$regexes = str_replace('\\n', "\n", $regexes);
$regexes = explode("\n", $regexes);
foreach ($regexes as $disallow) {
$disallow = trim($disallow);
if (preg_match("/{$disallow}/i", $browser->agent(), $matches)) {
return false;
}
}
}
return true;
}
