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; }