Psr7Middlewares\Middleware\BlockSpam

Complexity

Total Complexity

6

Size/Duplication

Total Lines	43
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	2

Importance

Changes

0

<?php
class BlockSpam
{
    private $spammers;
    private $list;

    public function __construct($spammers = null)
    {
        if ($spammers === null) {
            if ( file_exists( ' __DIR__.'/../../../../vendor/piwik/referrer-spam-blacklist/spammers.txt' ) ) { 

This code did not parse for me. Apparently, there is an error somewhere around this line:

Syntax error, unexpected '.'

                $spammers = __DIR__.'/../../../../vendor/piwik/referrer-spam-blacklist/spammers.txt';
            } else if ( file_exists( ' __DIR__.'/../../../../piwik/referrer-spam-blacklist/spammers.txt' ) ) { 
                 $spammers = __DIR__.'/../../../../piwik/referrer-spam-blacklist/spammers.txt';
            } else {
                $spammers  =  null;
            }
        } 

        $this->spammers = $spammers;
    }

    /**
     * Execute the middleware.
     *
     * @param ServerRequestInterface $request
     * @param ResponseInterface      $response
     * @param callable               $next
     *
     * @return ResponseInterface
     */
    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
    {
        if ($this->list === null) {
            if (!is_file($this->spammers)) {
                throw new RuntimeException(sprintf('The spammers file "%s" doest not exists', $this->spammers));
            }

            $this->list = file($this->spammers, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
        }

        $referer = parse_url($request->getHeaderLine('Referer'), PHP_URL_HOST);
        $referer = preg_replace('/^(www\.)/i', '', $referer);

        if (in_array($referer, $this->list, true)) {
            return $response->withStatus(403);