/**
* Converts relative url to the absolute, considering document's url.
* @param string $uri Relative url.
* @return null|string Absolute url or null if relative url contains errors.
*/
protected function convertRelativeUriToAbsolute($uri)
{
if (strpos($uri, '//') === 0) {
$uri = $this->uri->getScheme() . ":" . $uri;
}
if (preg_match('#^https?://#', $uri)) {
return $uri;
}
$pars = parse_url($uri);
if ($pars === false) {
return null;
}
if (isset($pars['host'])) {
$result = $uri;
} else {
if (isset($pars['path'])) {
if (substr($pars['path'], 0, 1) !== '/') {
$pathPrefix = preg_replace('/^(.+?)([^\\/]*)$/', '$1', $this->uri->getPath());
$pars['path'] = $pathPrefix . $pars['path'];
}
$uriPort = '';
if ($this->uri->getScheme() === 'http' && $this->uri->getPort() != '80' || $this->uri->getScheme() === 'https' && $this->uri->getPort() != '443') {
$uriPort = ':' . $this->uri->getPort();
}
$result = $this->uri->getScheme() . '://' . $this->uri->getHost() . $uriPort . $pars['path'] . (isset($pars['query']) ? '?' . $pars['query'] : '') . (isset($pars['fragment']) ? '#' . $pars['fragment'] : '');
} else {
$result = null;
}
}
return $result;
}
protected function connect(Uri $url)
{
if ($this->proxyHost != '') {
$proto = "";
$host = $this->proxyHost;
$port = $this->proxyPort;
} else {
$proto = $url->getScheme() == "https" ? "ssl://" : "";
$host = $url->getHost();
$port = $url->getPort();
}
$res = stream_socket_client($proto . $host . ":" . $port, $errno, $errstr, $this->socketTimeout);
if (is_resource($res)) {
$this->resource = $res;
if ($this->streamTimeout > 0) {
stream_set_timeout($this->resource, $this->streamTimeout);
}
return true;
}
if (intval($errno) > 0) {
$this->error["CONNECTION"] = "[" . $errno . "] " . $errstr;
} else {
$this->error["SOCKET"] = "Socket connection error.";
}
return false;
}
