forked from tractorcow/silverstripe-akismet
/
AkismetMiddleware.php
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/
AkismetMiddleware.php
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<?php
namespace SilverStripe\Akismet\Config;
use SilverStripe\Control\HTTPRequest;
use SilverStripe\Control\Middleware\HTTPMiddleware;
use SilverStripe\ORM\DataObjectSchema;
use SilverStripe\SiteConfig\SiteConfig;
use SilverStripe\Akismet\AkismetSpamProtector;
use SilverStripe\ORM\DB;
use SilverStripe\ORM\DataObject;
use SilverStripe\Security\Security;
/**
* Allows akismet to be configured via siteconfig instead of hard-coded configuration
*/
class AkismetMiddleware implements HTTPMiddleware
{
public function process(HTTPRequest $request, callable $delegate)
{
$this->registerAkismetSpamProtector();
return $delegate($request);
}
protected function registerAkismetSpamProtector()
{
// Skip if database isn't ready
if (!$this->isDBReady()) {
return;
}
// Skip if SiteConfig doesn't have this extension
if (!SiteConfig::has_extension(AkismetConfig::class)) {
return;
}
// Check if key exists
$akismetKey = SiteConfig::current_site_config()->AkismetKey;
if ($akismetKey) {
AkismetSpamProtector::singleton()->setApiKey($akismetKey);
}
}
/**
* Make sure the DB is ready before accessing siteconfig db field
*
* @return bool
*/
protected function isDBReady()
{
if (!Security::database_is_ready()) {
return false;
}
/** @var DataObjectSchema $schema */
$schema = DataObject::getSchema();
// Require table
if (!$schema->classHasTable(SiteConfig::class)) {
return false;
}
// Ensure siteconfig has all fields necessary
$dbFields = DB::field_list($schema->tableName(SiteConfig::class));
if (empty($dbFields)) {
return false;
}
// Ensure that SiteConfig has all fields
$objFields = $schema->databaseFields(SiteConfig::class);
$missingFields = array_diff_key($objFields ?? [], $dbFields);
return empty($missingFields);
}
}