2) { // This should not happen! debug_report_bug(__FUNCTION__, __LINE__, 'Invalid ' . $host . '. Please report this to the Mailer-Project team.'); } // Get resolver instance $resolver = new HostnameResolver(); // Open connection //* DEBUG: */ die('baseUrl=' . $baseUrl); if ($useProxy === true) { // Resolve hostname into IP address $ip = $resolver->resolveHostname(compileRawCode(getProxyHost())); // Connect to host through proxy connection $fp = fsockopen($ip, bigintval(getProxyPort()), $errno, $errdesc, 30); } else { // Resolve hostname into IP address $ip = $resolver->resolveHostname($host); // Connect to host directly $fp = fsockopen($ip, $port, $errno, $errdesc, 30); } // Is there a link? if (!is_resource($fp)) { // Failed! logDebugMessage(__FUNCTION__, __LINE__, $errdesc . ' (' . $errno . ')'); return $response; } elseif ((!stream_set_blocking($fp, 0)) || (!stream_set_timeout($fp, 1))) { // Cannot set non-blocking mode or timeout logDebugMessage(__FUNCTION__, __LINE__, socket_strerror(socket_last_error())); return $response; } // Do we use proxy? if ($useProxy === true) { // Setup proxy tunnel $response = setupProxyTunnel($host, $port, $fp); // If the response is invalid, abort if ((count($response) == 3) && (empty($response[0])) && (empty($response[1])) && (empty($response[2]))) { // Invalid response! logDebugMessage(__FUNCTION__, __LINE__, 'Proxy tunnel not working?'); return $response; } // END - if } // END - if // Write request fwrite($fp, $request); // Start counting $start = microtime(true); // Read response while (!feof($fp)) { // Get info from stream $info = stream_get_meta_data($fp); // Is it timed out? 15 seconds is a really patient... if (($info['timed_out'] == true) || (microtime(true) - $start) > 15) { // Timeout logDebugMessage(__FUNCTION__, __LINE__, 'Timed out to get data from host ' . $host); // Abort here break; } // END - if // Get line from stream $line = fgets($fp, 128); // Ignore empty lines because of non-blocking mode if (empty($line)) { // uslepp a little to avoid 100% CPU load usleep(10); // Skip this continue; } // END - if // Check for broken HTTP implementations if (substr(strtolower($line), 0, 7) == 'server:') { // Anomic (see http://anomic.de, http://yacy.net) is currently broken $GLOBALS['is_http_server_broken'] = (count(getArrayKeysFromSubStrArray(strtolower($line), array('anomichttpd'))) > 0); } // END - if // Add it to response $response[] = $line; } // END - while // Close socket fclose($fp); // Time request if debug-mode is enabled if (isDebugModeEnabled()) { // Add debug message... logDebugMessage(__FUNCTION__, __LINE__, 'Request took ' . (microtime(true) - $start) . ' seconds and returned ' . count($response) . ' line(s).'); } // END - if // Skip first empty lines $resp = $response; foreach ($resp as $idx => $line) { // Trim space away $line = trim($line); // Is this line empty? if (empty($line)) { // Then remove it array_shift($response); } else { // Abort on first non-empty line break; } } // END - foreach //* DEBUG: */ debugOutput('Request:
'.print_r($request, true).''); //* DEBUG: */ debugOutput('Response:
'.print_r($response, true).''); // Proxy agent found or something went wrong? if (!isset($response[0])) { // No response, maybe timeout $response = array('', '', ''); logDebugMessage(__FUNCTION__, __LINE__, 'Invalid empty response array, maybe timed out?'); } elseif ((substr(strtolower($response[0]), 0, 11) == 'proxy-agent') && ($useProxy === true)) { // Proxy header detected, so remove two lines array_shift($response); array_shift($response); } // END - if // Was the request successfull? if ((!isInStringIgnoreCase('200 OK', $response[0])) || (empty($response[0]))) { // Not found / access forbidden logDebugMessage(__FUNCTION__, __LINE__, 'Unexpected status code ' . $response[0] . ' detected. "200 OK" was expected.'); $response = array('', '', ''); } else { // Check array for chuncked encoding $response = unchunkHttpResponse($response); } // END - if // Return response return $response; } // Sets up a proxy tunnel for given hostname and through resource function setupProxyTunnel ($host, $port, $resource) { // Initialize array $response = array('', '', ''); // Generate CONNECT request header $proxyTunnel = 'CONNECT ' . $host . ':' . $port . ' HTTP/1.0' . getConfig('HTTP_EOL'); $proxyTunnel .= 'Host: ' . $host . getConfig('HTTP_EOL'); // Use login data to proxy? (username at least!) if (getProxyUsername() != '') { // Add it as well $encodedAuth = base64_encode(compileRawCode(getProxyUsername()) . ':' . compileRawCode(getProxyPassword())); $proxyTunnel .= 'Proxy-Authorization: Basic ' . $encodedAuth . getConfig('HTTP_EOL'); } // END - if // Add last new-line $proxyTunnel .= getConfig('HTTP_EOL'); //* DEBUG: */ debugOutput('proxyTunnel=
' . $proxyTunnel.''); // Write request fwrite($fp, $proxyTunnel); // Got response? if (feof($fp)) { // No response received return $response; } // END - if // Read the first line $resp = trim(fgets($fp, 10240)); $respArray = explode(' ', $resp); if ((strtolower($respArray[0]) !== 'http/1.0') || ($respArray[1] != '200')) { // Invalid response! return $response; } // END - if // All fine! return $respArray; } // Check array for chuncked encoding function unchunkHttpResponse ($response) { // Default is not chunked $isChunked = false; // Check if we have chunks foreach ($response as $line) { // Make lower-case and trim it $line = trim(strtolower($line)); // Entry found? if ((strpos($line, 'transfer-encoding') !== false) && (strpos($line, 'chunked') !== false)) { // Found! $isChunked = true; break; } // END - if } // END - foreach // Is it chunked? if ($isChunked === true) { // Good, we still have the HTTP headers in there, so we need to get rid // of them temporarly //* DEBUG: */ die('
'.htmlentities(print_r(removeHttpHeaderFromResponse($response), true)).''); $tempResponse = http_chunked_decode(implode('', removeHttpHeaderFromResponse($response))); // We got a string back from http_chunked_decode(), so we need to convert it back to an array //* DEBUG: */ die('tempResponse['.strlen($tempResponse).']=
'.replaceReturnNewLine(htmlentities($tempResponse)).''); // Re-add the headers $response = merge_array($GLOBALS['http_headers'], stringToArray("\n", $tempResponse)); } // END - if // Return the unchunked array return $response; } // Removes HTTP header lines from a response array (e.g. output from send
'.replaceReturnNewLine(htmlentities(call_user_func_array($mbPrefix . 'substr', array($chunk, $offset, 10)))).''; /* DEBUG: */ // Get next hex-coded chunk length $chunkLenHex = call_user_func_array($mbPrefix . 'substr', array($chunk, $offset, ($lineEndAt - $offset))); /* DEBUG: * print 'chunkLenHex['.__LINE__.']='.replaceReturnNewLine(htmlentities($chunkLenHex)).'
'.replaceReturnNewLine(htmlentities($chunkLenHex)).''); debug_report_bug(__FUNCTION__, __LINE__, 'Value ' . $chunkLenHex . ' is no valid hexa-decimal string.'); // This won't be reached return $chunk; } // END - if // Position of next chunk is right after \r\n $offset = $offset + strlen($chunkLenHex) + strlen(getConfig('HTTP_EOL')); $chunkLen = hexdec(rtrim($chunkLenHex, getConfig('HTTP_EOL'))); /* DEBUG: * print 'chunkLen='.$chunkLen.'
'.replaceReturnNewLine(htmlentities($next)).''; /* * Hack for e.g. YaCy HTTPDaemon (Anomic Server), this HTTP server * is currently (revision 7567 and maybe earlier) broken and does * not include the \r\n characters when it sents a "chunked" HTTP * message. */ $count = 0; if (isBrokenHttpServerImplentation()) { // Count occurrences of \r\n $count = call_user_func_array($mbPrefix . 'substr_count', array($next, getConfig('HTTP_EOL'))); } // END - if /* * Correct chunk length because some broken HTTP server * implementation subtract occurrences of \r\n in their chunk * lengths. */ $chunkLen = hexdec(rtrim($chunkLenHex, getConfig('HTTP_EOL'))) - ($count * strlen(getConfig('HTTP_EOL'))); // Add next chunk to $dechunk $dechunk .= call_user_func_array($mbPrefix . 'substr', array($chunk, $offset, $chunkLen)); /* DEBUG: * print('offset['.__LINE__.']='.$offset.'
'.replaceReturnNewLine(htmlentities($dechunk)).'chunk=
'.replaceReturnNewLine(htmlentities($chunk)).''); /* DEBUG: */ // Is $offset + $chunkLen larger than or equal $len? if (($offset + $chunkLen) >= $len) { // Then stop processing here break; } // END - if // Calculate offset of next chunk $offset = call_user_func_array($mbPrefix . 'strpos', array($chunk, getConfig('HTTP_EOL'), $offset + $chunkLen)) + 2; /* DEBUG: * print('offset['.__LINE__.']='.$offset.'
'.replaceReturnNewLine(htmlentities(call_user_func_array($mbPrefix . 'substr', array($chunk, $offset, 100)))).'---:---:---:---:---:---:---:---:---