function doRequest()
{
// Performs the actual HTTP request, returning true or false depending on outcome
if (!($fp = @fsockopen($this->host, $this->port, $errno, $errstr, $this->timeout))) {
// Set error message
switch ($errno) {
case -3:
$this->errormsg = 'Socket creation failed (-3)';
case -4:
$this->errormsg = 'DNS lookup failure (-4)';
case -5:
$this->errormsg = 'Connection refused or timed out (-5)';
default:
$this->errormsg = 'Connection failed (' . $errno . ')';
$this->errormsg .= ' ' . $errstr;
$this->debug($this->errormsg);
}
return false;
}
socket_set_timeout($fp, $this->timeout);
$request = $this->buildRequest();
$this->debug('Request', $request);
fwrite($fp, $request);
// Reset all the variables that should not persist between requests
$this->headers = array();
$this->content = '';
$this->errormsg = '';
// Set a couple of flags
$inHeaders = true;
$atStart = true;
// Now start reading back the response
while (!feof($fp)) {
$line = fgets($fp, 4096);
if ($atStart) {
// Deal with first line of returned data
$atStart = false;
if (!preg_match('/HTTP\\/(\\d\\.\\d)\\s*(\\d+)\\s*(.*)/', $line, $m)) {
$this->errormsg = "Status code line invalid: " . htmlentities($line);
$this->debug($this->errormsg);
return false;
}
$http_version = $m[1];
// not used
$this->status = $m[2];
$status_string = $m[3];
// not used
$this->debug(trim($line));
continue;
}
if ($inHeaders) {
if (trim($line) == '') {
$inHeaders = false;
$this->debug('Received Headers', $this->headers);
if ($this->headers_only) {
break;
// Skip the rest of the input
}
continue;
}
if (!preg_match('/([^:]+):\\s*(.*)/', $line, $m)) {
// Skip to the next header
continue;
}
$key = strtolower(trim($m[1]));
$val = trim($m[2]);
// Deal with the possibility of multiple headers of same name
if (isset($this->headers[$key])) {
if (is_array($this->headers[$key])) {
$this->headers[$key][] = $val;
} else {
$this->headers[$key] = array($this->headers[$key], $val);
}
} else {
$this->headers[$key] = $val;
}
continue;
}
// We're not in the headers, so append the line to the contents
$this->content .= $line;
}
fclose($fp);
// If data is compressed, uncompress it
if (isset($this->headers['content-encoding']) && $this->headers['content-encoding'] == 'gzip') {
$this->debug('Content is gzip encoded, unzipping it');
$this->content = substr($this->content, 10);
// See http://www.php.net/manual/en/function.gzencode.php
$this->content = gzinflate($this->content);
}
// If $persist_cookies, deal with any cookies
if ($this->persist_cookies && isset($this->headers['set-cookie']) && $this->host == $this->cookie_host) {
$cookies = $this->headers['set-cookie'];
if (!is_array($cookies)) {
$cookies = array($cookies);
}
foreach ($cookies as $cookie) {
if (preg_match('/([^=]+)=([^;]+);/', $cookie, $m)) {
$this->cookies[$m[1]] = $m[2];
}
}
// Record domain of cookies for security reasons
$this->cookie_host = $this->host;
}
// If $persist_referers, set the referer ready for the next request
if ($this->persist_referers) {
$this->debug('Persisting referer: ' . $this->getRequestURL());
$this->referer = $this->getRequestURL();
}
// Finally, if handle_redirects and a redirect is sent, do that
if ($this->handle_redirects) {
if (++$this->redirect_count >= $this->max_redirects) {
$this->errormsg = 'Number of redirects exceeded maximum (' . $this->max_redirects . ')';
$this->debug($this->errormsg);
$this->redirect_count = 0;
return false;
}
$location = isset($this->headers['location']) ? $this->headers['location'] : '';
$uri = isset($this->headers['uri']) ? $this->headers['uri'] : '';
if ($location || $uri) {
$url = parse_url($location . $uri);
// This will FAIL if redirect is to a different site
if (!empty($url['path'])) {
return $this->get($url['path']);
} else {
// Note from Rene (rene@fsfe.org): Now it won't fail anymore.
// Quick&Dirty hack... don't blame me... :)
$u = new YDUrl($this->headers['location']);
$c = new YDHttpClient($u->getHost());
$c->setUserAgent($this->user_agent);
$c->setAuthorization($this->username, $this->password);
$c->setCookies($this->cookies);
$c->useGzip($this->use_gzip);
$c->setPersistCookies($this->persist_cookies);
$c->setPersistReferers($this->persist_referers);
$c->setHandleRedirects($this->handle_redirects);
$c->setMaxRedirects($this->max_redirects);
$c->setHeadersOnly($this->headers_only);
$c->setDebug($this->debug);
$r = $c->get('/' . $u->getPath());
$this->status = $c->getStatus();
$this->content = $c->getContent();
$this->headers = $c->getHeaders();
$this->errormsg = $c->getError();
$this->cookies = $c->getCookies();
return $r;
}
}
}
return true;
}
