Guzzle plugin to force the response charset. Useful ~if~ when webservers lie to you again.

ForceCharsetPlugin.php

<?php

use Guzzle\Common\Event;
use Guzzle\Http\Message\Header;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

class ForceCharsetPlugin implements EventSubscriberInterface
{
    private $forcedCharset = 'utf8';

    public static function getSubscribedEvents()
    {
        return array(
            'request.complete' => 'onRequestComplete'
        );
    }

    public function setForcedCharset($charset)
    {
        $this->forcedCharset = $charset;

        return $this;
    }

    public function getForcedCharset()
    {
        return $this->forcedCharset;
    }

    public function onRequestComplete(Event $event)
    {
        $response = $event['response'];
        $header = $response->getHeader('content-type');

        $modified = new Header(
            $header->getName(),
            array_map(array($this, 'modifyParams'), $header->parseParams()),
            $header->getGlue()
        );

        $response->setHeader('content-type', $modified);
    }

    private function modifyParams(array $headerParams)
    {
        $headerParams['charset'] = $this->getForcedCharset();

        return urldecode(http_build_query($headerParams, null, ';'));
    }
}

usage.php

<?php

$plugin = new ForceCharsetPlugin();
$plugin->setForcedCharset('utf8');


// Guzzle only
$guzzleClient->addSubscriber($plugin);


// With Goutte
$goutteClient->getClient()->addSubscriber($plugin);