private Map executeHTTP(Map data_to_send, boolean v6) throws Exception {
if (v6 && !enable_v6) {
throw (new Exception("IPv6 is disabled"));
}
String host = getHost(v6, HTTP_SERVER_ADDRESS_V6, HTTP_SERVER_ADDRESS_V4);
if (Logger.isEnabled())
Logger.log(
new LogEvent(
LOGID,
"VersionCheckClient retrieving "
+ "version information from "
+ host
+ ":"
+ HTTP_SERVER_PORT
+ " via HTTP"));
String url_str =
"http://"
+ (v6 ? UrlUtils.convertIPV6Host(host) : host)
+ (HTTP_SERVER_PORT == 80 ? "" : (":" + HTTP_SERVER_PORT))
+ "/version?";
url_str +=
URLEncoder.encode(new String(BEncoder.encode(data_to_send), "ISO-8859-1"), "ISO-8859-1");
URL url = new URL(url_str);
HttpURLConnection url_connection = (HttpURLConnection) url.openConnection();
url_connection.connect();
try {
InputStream is = url_connection.getInputStream();
Map reply = BDecoder.decode(new BufferedInputStream(is));
preProcessReply(reply, v6);
return (reply);
} finally {
url_connection.disconnect();
}
}
private Map executeTCP(Map data_to_send, InetAddress bind_ip, int bind_port, boolean v6)
throws Exception {
if (v6 && !enable_v6) {
throw (new Exception("IPv6 is disabled"));
}
String host = getHost(v6, TCP_SERVER_ADDRESS_V6, TCP_SERVER_ADDRESS_V4);
if (Logger.isEnabled())
Logger.log(
new LogEvent(
LOGID,
"VersionCheckClient retrieving "
+ "version information from "
+ host
+ ":"
+ TCP_SERVER_PORT
+ " via TCP"));
String get_str = getHTTPGetString(data_to_send, false, v6);
Socket socket = null;
try {
socket = new Socket();
if (bind_ip != null) {
socket.bind(new InetSocketAddress(bind_ip, bind_port));
} else if (bind_port != 0) {
socket.bind(new InetSocketAddress(bind_port));
}
socket.setSoTimeout(10000);
socket.connect(new InetSocketAddress(host, TCP_SERVER_PORT), 10000);
OutputStream os = socket.getOutputStream();
os.write(get_str.getBytes("ISO-8859-1"));
os.flush();
InputStream is = socket.getInputStream();
byte[] buffer = new byte[1];
String header = "";
int content_length = -1;
while (true) {
int len = is.read(buffer);
if (len <= 0) {
break;
}
header += (char) buffer[0];
if (header.endsWith("\r\n\r\n")) {
header = header.toLowerCase(MessageText.LOCALE_ENGLISH);
int pos = header.indexOf("content-length:");
if (pos == -1) {
throw (new IOException("content length missing"));
}
header = header.substring(pos + 15);
pos = header.indexOf('\r');
header = header.substring(0, pos).trim();
content_length = Integer.parseInt(header);
if (content_length > 10000) {
throw (new IOException("content length too large"));
}
break;
}
if (header.length() > 2048) {
throw (new IOException("header too large"));
}
}
ByteArrayOutputStream baos = new ByteArrayOutputStream(content_length);
buffer = new byte[content_length];
while (content_length > 0) {
int len = is.read(buffer);
if (len <= 0) {
break;
}
baos.write(buffer, 0, len);
content_length -= len;
}
if (content_length != 0) {
throw (new IOException("error reading reply"));
}
byte[] reply_bytes = baos.toByteArray();
Map reply = BDecoder.decode(new BufferedInputStream(new ByteArrayInputStream(reply_bytes)));
preProcessReply(reply, v6);
return (reply);
} finally {
if (socket != null) {
try {
socket.close();
} catch (Throwable e) {
}
}
}
}