src/HTTP/Request2.php
public function setUrl($url)
    {
        if (is_string($url)) {
            $url = new Net_URL2(
                $url, array(Net_URL2::OPTION_USE_BRACKETS => $this->config['use_brackets'])
            );
        }
        if (!$url instanceof Net_URL2) {
            throw new HTTP_Request2_LogicException(
                'Parameter is not a valid HTTP URL',
                HTTP_Request2_Exception::INVALID_ARGUMENT
            );
        }
        // URL contains username / password?
        if ($url->getUserinfo()) {
            $username = $url->getUser();
            $password = $url->getPassword();
            $this->setAuth(rawurldecode($username), $password? rawurldecode($password): '');
            $url->setUserinfo('');
        }
        if ('' == $url->getPath()) {
            $url->setPath('/');
        }
        $this->url = $url;

        return $this;
    }
public function setUrl($url)
    {
        if (is_string($url)) {
            $url = new Net_URL2(
                $url, array(Net_URL2::OPTION_USE_BRACKETS => $this->config['use_brackets'])
            );
        }
        if (!$url instanceof Net_URL2) {
            throw new HTTP_Request2_LogicException(
                'Parameter is not a valid HTTP URL',
                HTTP_Request2_Exception::INVALID_ARGUMENT
            );
        }
        // URL contains username / password?
        if ($url->getUserinfo()) {
            $username = $url->getUser();
            $password = $url->getPassword();
            $this->setAuth(rawurldecode($username), $password? rawurldecode($password): '');
            $url->setUserinfo('');
        }
        if ('' == $url->getPath()) {
            $url->setPath('/');
        }
        $this->url = $url;

        return $this;
    }
Sets the URL for this request

If the URL has userinfo part (username & password) these will be removed
and converted to auth data. If the URL does not have a path component,
that will be set to '/'.

@param string|Net_URL2 $url Request URL

@return   HTTP_Request2
@throws   HTTP_Request2_LogicException