* @author niki
*/
public class bridge {
+ /**
+ * The optional options that can be passed to the program.
+ *
+ * @author niki
+ */
+ private enum Option {
+ /**
+ * The encryption key for the input data (optional, but can also be
+ * empty <b>which is different</b> (it will then use an empty encryption
+ * key)).
+ */
+ KEY,
+ /**
+ * The encryption key for the output data (optional, but can also be
+ * empty <b>which is different</b> (it will then use an empty encryption
+ * key)).
+ */
+ FORWARD_KEY,
+ /** The trace level (1, 2, 3.. default is 1). */
+ TRACE_LEVEL,
+ /**
+ * The maximum length after which to truncate data to display (the whole
+ * data will still be sent).
+ */
+ MAX_DISPLAY_SIZE,
+ /** The help message. */
+ HELP,
+ }
+
+ static private String getSyntax() {
+ return "Syntax: (--options) (--) [NAME] [PORT] [FORWARD_HOST] [FORWARD_PORT]\n"//
+ + "\tNAME : the bridge name for display/debug purposes\n"//
+ + "\tPORT : the port to listen on\n"//
+ + "\tFORWARD_HOST : the host to connect to\n"//
+ + "\tFORWARD_PORT : the port to connect to\n"//
+ + "\n" //
+ + "\tOptions: \n" //
+ + "\t-- : no more options in the rest of the parameters\n" //
+ + "\t--help : this help message\n" //
+ + "\t--key : the INCOMING encryption key\n" //
+ + "\t--forward-key : the OUTGOING encryption key\n" //
+ + "\t--trace-level : the trace level (1, 2, 3... default is 1)\n" //
+ + "\t--max-display-size : the maximum size after which to \n"//
+ + "\t truncate the messages to display (the full message will still be sent)\n" //
+ ;
+ }
+
/**
* Start a bridge between 2 servers.
*
* @param args
- * an array containing:
- * <ul>
- * <li>The bridge name</li>
- * <li>The bridge port</li>
- * <li>a key for an encrypted bridge, PLAIN_TEXT for plain text</li>
- * <li>The forward server host</li>
- * <li>The forward server port</li>
- * <li>a key for an encrypted forward server, PLAIN_TEXT for
- * plain text</li>
- * <li>(optional) a trace level</li>
- * <li>(optional) a truncate size for data</li>
- * </ul>
+ * the parameters, which can be seen by passing "--help" or just
+ * calling the program without parameters
*/
public static void main(String[] args) {
final TraceHandler tracer = new TraceHandler(true, false, 0);
try {
- if (args.length < 6) {
- tracer.error("Invalid syntax.\n"
- + "Syntax: [name] [port] [ssl] [fhost] [fport] [fssl] ([trace level]) ([max])\n"
- + "\tname: the bridge name\n"
- + "\tport: the bridge port\n"
- + "\tkey: a key for an encrypted bridge, PLAIN_TEXT for plain text\n"
- + "\tfhost: the forward server host\n"
- + "\tfport: the forward server port\n"
- + "\tfkey: a key for an encrypted forward server, PLAIN_TEXT for plain text\n"
- + "\ttrace level: the optional trace level (default is 1)\n"
- + "\tmax: the maximum size after which to truncate data\n");
- return;
+ if (args.length == 0) {
+ tracer.error(getSyntax());
+ System.exit(0);
}
+ String key = null;
+ String fkey = null;
+ int traceLevel = 1;
+ int maxPrintSize = 0;
+
int i = 0;
+ while (args[i].startsWith("--")) {
+ String arg = args[i];
+ i++;
+
+ if (arg.equals("--")) {
+ break;
+ }
+
+ arg = arg.substring(2).toUpperCase().replace("-", "_");
+ try {
+ Option opt = Enum.valueOf(Option.class, arg);
+ switch (opt) {
+ case HELP:
+ tracer.trace(getSyntax());
+ System.exit(0);
+ break;
+ case FORWARD_KEY:
+ fkey = args[i++];
+ break;
+ case KEY:
+ key = args[i++];
+ break;
+ case MAX_DISPLAY_SIZE:
+ maxPrintSize = Integer.parseInt(args[i++]);
+ break;
+ case TRACE_LEVEL:
+ traceLevel = Integer.parseInt(args[i++]);
+ break;
+ }
+ } catch (Exception e) {
+ tracer.error(getSyntax());
+ System.exit(1);
+ }
+ }
+
+ if ((args.length - i) != 4) {
+ tracer.error(getSyntax());
+ System.exit(2);
+ }
+
String name = args[i++];
int port = Integer.parseInt(args[i++]);
- String key = args[i++];
- // TODO: bad
- if ("PLAIN_TEXT".equals(key)) {
- key = null;
- }
String fhost = args[i++];
int fport = Integer.parseInt(args[i++]);
- String fkey = args[i++];
- // TODO: bad
- if ("PLAIN_TEXT".equals(fkey)) {
- fkey = null;
- }
-
- int traceLevel = 1;
- if (args.length > 6) {
- traceLevel = Integer.parseInt(args[i++]);
- }
- int maxPrintSize = 0;
- if (args.length > 7) {
- maxPrintSize = Integer.parseInt(args[i++]);
- }
ServerBridge bridge = new ServerBridge(name, port, key, fhost,
fport, fkey);
bridge.run();
} catch (Exception e) {
tracer.error(e);
+ System.exit(42);
}
}
}
git://git.nikiroo.be / fanfix-jexer.git / commitdiff