/**
* Perform an interaction of a URL.
*
* @param string $url A URL.
* @param string $auth Authentication username and password. (optional)
* @param string $pxhost The host name of a proxy.
* If it is `null', it is not used. (optional)
* @param int $pxport The port number of the proxy. (optional)
* @param int $outsec Timeout in seconds.
* If it is negative, it is not used. (optional)
* @param array $reqheads An array of extension headers.
* If it is `null', it is not used. (optional)
* @param string $reqbody The pointer of the entitiy body of request.
* If it is `null', "GET" method is used. (optional)
* @return object Services_HyperEstraier_HttpResponse
* An object into which headers and the entity body
* of response are stored. On error, returns false.
* @throws InvalidArgumentException, RuntimeException
* @access public
* @static
* @ignore
*/
public static function shuttleUrl($url, $auth = null, $pxhost = null, $pxport = null, $outsec = -1, $reqheads = null, $reqbody = null)
{
if (!preg_match('@^(https?://)(\\w.+)@', $url, $matches)) {
throw new InvalidArgumentException('Invalid URL given.');
}
if (is_null($reqheads)) {
$reqheads = array();
}
// set request parameters
$params = array('http' => array());
if (is_null($reqbody)) {
$params['http']['method'] = 'GET';
} else {
$params['http']['method'] = 'POST';
$params['http']['content'] = $reqbody;
$reqheads['content-length'] = strlen($reqbody);
}
if (!is_null($pxhost) && !is_null($pxport)) {
$params['http']['proxy'] = sprintf('tcp://%s:%d', $pxhost, $pxport);
}
$reqheads['user-agent'] = sprintf('Services_HyperEstraier/%s (PHP %s)', SERVICES_HYPERESTRAIER_VERSION, PHP_VERSION);
if ($auth) {
$url = $matches[1] . $auth . '@' . $matches[2];
}
$params['http']['header'] = '';
foreach ($reqheads as $key => $value) {
$params['http']['header'] .= sprintf("%s: %s\r\n", $key, $value);
}
$context = stream_context_create($params);
try {
// open a stream and send the request
set_error_handler('services_hyperestraier_utility_open_url_error_handler', E_WARNING);
$fp = fopen($url, 'r', false, $context);
restore_error_handler();
if ($outsec >= 0) {
stream_set_timeout($fp, $outsec);
}
// get the response body
$body = stream_get_contents($fp);
// parse the response headers
$meta_data = stream_get_meta_data($fp);
if (!empty($meta_data['timed_out'])) {
fclose($fp);
throw new RuntimeException('Connection timed out.', Services_HyperEstraier_Error::CONNECTION_TIMEDOUT);
}
if (strcasecmp($meta_data['wrapper_type'], 'cURL') == 0) {
$raw_headers = $meta_data['wrapper_data']['headers'];
} else {
$raw_headers = $meta_data['wrapper_data'];
}
$http_status = array_shift($raw_headers);
if (!preg_match('!^HTTP/(.+?) (\\d+) ?(.*)!', $http_status, $matches)) {
fclose($fp);
throw new RuntimeException('Malformed response.', Services_HyperEstraier_Error::MALFORMED_RESPONSE);
}
$code = (int) $matches[2];
$headers = array();
foreach ($raw_headers as $header) {
list($name, $value) = explode(':', $header, 2);
$headers[strtolower($name)] = ltrim($value);
}
// close the stream
fclose($fp);
return new Services_HyperEstraier_HttpResponse($code, $headers, $body);
} catch (RuntimeException $e) {
restore_error_handler();
if ($e->getCode() == Services_HyperEstraier_Error::HTTP_NOT_2XX) {
return new Services_HyperEstraier_HttpResponse((int) $e->getMessage(), array(), '');
}
Services_HyperEstraier_Error::push($e->getCode(), $e->getMessage(), 'exception', $params, array('exception' => $e));
return false;
}
}
$node = new Services_HyperEstraier_Node();
$node->setUrl($uri);
// create a search condition object
$cond = new Services_HyperEstraier_Condition();
$cond->setPhrase('water AND mind');
$cond->setMax(10);
$cond->setSkip(0);
// get the result of search
$nres = $node->search($cond, 0);
if ($nres) {
if ($nres->docNum() == 0) {
fprintf(STDOUT, "%s: not found.\n", $cond->getPhrase());
} else {
foreach ($nres as $rdoc) {
// display attributes
if (($value = $rdoc->getAttribute('@uri')) !== null) {
fprintf(STDOUT, "URI: %s\n", $value);
}
if (($value = $rdoc->getAttribute('@title')) !== null) {
fprintf(STDOUT, "Title: %s\n", $value);
}
// display the snippet text (with property overloading)
fprintf(STDOUT, "%s", $rdoc->snippet);
}
}
} else {
fprintf(STDERR, "error: %d\n", $node->status);
if (Services_HyperEstraier_Error::hasErrors()) {
fputs(STDERR, print_r(Services_HyperEstraier_Error::getErrors(), true));
}
}