public function browse($source, $from)
{
$source = strtolower($source);
$index = $this->config[$source]['id'];
$bases = $this->config['Global']['bases'];
$removeRegex = $this->config[$source]['search_remove'];
if (isset($removeRegex)) {
$from = preg_replace($removeRegex, '', $from);
}
$params = array('index' => $index, 'query' => $from, 'base' => $bases);
$answer = $this->httpService->get($this->cgiUrl, $params);
$xml = simplexml_load_string($answer->getBody());
$indexes = array();
$count = 0;
$next = null;
foreach ($xml->{'result'} as $result) {
$ids = array();
foreach ($result->id as $id) {
$ids[] = (string) $id;
}
$heading = $this->getDisplayText($source, (string) $result->display);
if ($count < 10) {
$indexes[] = array('heading' => $heading, 'ids' => $ids, 'count' => count($ids));
} else {
$next = (string) $result->sort;
}
$count++;
}
$result = array('items' => $indexes);
if (isset($next)) {
$result['nextQuery'] = array('source' => $source, 'from' => $next);
}
return $result;
}
/**
* Perform an HTTP request.
*
* @param string $url URL of request
* @param array $param query parameters to add to URL
* @param string $method HTTP method
* @param string $body HTTP body (null for none)
*
* @return SimpleXMLElement
*/
public function doHTTPRequest($url, $params = null, $method = 'GET', $body = null, $headers = array())
{
if ($this->debug_enabled) {
$fullUrl = $this->appendQueryString($url, $params);
$this->debug("URL: '{$fullUrl}'");
}
if ($params == null) {
$params = array();
}
$result = null;
try {
if ($method == 'GET') {
$result = $this->httpService->get($url, $params, $this->timeout, $headers);
} else {
if ($method == 'POST') {
$url = $this->appendQueryString($url, $params);
$result = $this->httpService->post($url, $body, 'application/octet-stream', $this->timeout);
} else {
$url = $this->appendQueryString($url, $params);
$client = $this->httpService->createClient($url, $method, $this->timeout);
if ($body != null) {
$client->setRawBody($body);
}
$result = $client->send();
}
}
} catch (\Exception $e) {
throw new ILSException($e->getMessage());
}
if (!$result->isSuccess()) {
throw new ILSException('HTTP error');
}
$answer = $result->getBody();
if ($this->debug_enabled) {
$this->debug("url: {$url} response: {$answer}");
}
$answer = str_replace('xmlns=', 'ns=', $answer);
$result = simplexml_load_string($answer);
if (!$result) {
if ($this->debug_enabled) {
$this->debug("XML is not valid, URL: {$url}");
}
throw new ILSException("XML is not valid, URL: {$url} method: {$method} answer: {$answer}.");
}
return $result;
}
