<?php
/**
 * Piwik - Open source web analytics
 *
 * @link http://piwik.org
 * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 *
 * @category Piwik
 * @package Piwik
 */

/**
 * Class for sending mails, for more information see:
 *
 * @package Piwik
 * @see Zend_Mail, libs/Zend/Mail.php
 * @link http://framework.zend.com/manual/en/zend.mail.html
 */
class Piwik_Mail extends Zend_Mail
{
    /**
     * Default charset utf-8
     *
     * @param string $charset  charset, defaults to utf-8
     */
    public function __construct($charset = 'utf-8')
    {
        parent::__construct($charset);
        $this->initSmtpTransport();
    }

    /**
     * Sets the sender to use
     *
     * @param string $email
     * @param null|string $name
     * @return Zend_Mail
     */
    public function setFrom($email, $name = null)
    {
        $hostname = Piwik_Config::getInstance()->mail['defaultHostnameIfEmpty'];
        $piwikHost = Piwik_Url::getCurrentHost($hostname);

        // If known Piwik URL, use it instead of "localhost"
        $piwikUrl = Piwik::getPiwikUrl();
        $url = parse_url($piwikUrl);
        if (isset($url['host'])
            && $url['host'] != 'localhost'
            && $url['host'] != '127.0.0.1'
        ) {
            $piwikHost = $url['host'];
        }
        $email = str_replace('{DOMAIN}', $piwikHost, $email);
        return parent::setFrom($email, $name);
    }

    /**
     * @return void
     */
    private function initSmtpTransport()
    {
        $mailConfig = Piwik_Config::getInstance()->mail;
        if (empty($mailConfig['host'])
            || $mailConfig['transport'] != 'smtp'
        ) {
            return;
        }
        $smtpConfig = array();
        if (!empty($mailConfig['type']))
            $smtpConfig['auth'] = strtolower($mailConfig['type']);
        if (!empty($mailConfig['username']))
            $smtpConfig['username'] = $mailConfig['username'];
        if (!empty($mailConfig['password']))
            $smtpConfig['password'] = $mailConfig['password'];
        if (!empty($mailConfig['encryption']))
            $smtpConfig['ssl'] = $mailConfig['encryption'];

        $tr = new Zend_Mail_Transport_Smtp($mailConfig['host'], $smtpConfig);
        Piwik_Mail::setDefaultTransport($tr);
        ini_set("smtp_port", $mailConfig['port']);
    }
}
