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Use getopt for SAM args processing

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Args processing cleanups
Change default host from 0.0.0.0 to 127.0.0.1
Add -s option for SSL (unimplemented)
Put help text in a single string
This commit is contained in:
zzz
2015-06-17 02:22:28 +00:00
parent 233cce8311
commit 5878fae88f
1 changed files with 97 additions and 45 deletions
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142
apps/sam/java/src/net/i2p/sam/SAMBridge.java
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@ -27,6 +27,8 @@ import java.util.Map;
import java.util.Properties;
import java.util.Set;
import gnu.getopt.Getopt;
import net.i2p.I2PAppContext;
import net.i2p.app.*;
import static net.i2p.app.ClientAppState.*;
@ -72,12 +74,12 @@ public class SAMBridge implements Runnable, ClientApp {
public static final String DEFAULT_SAM_KEYFILE = "sam.keys";
public static final String PROP_TCP_HOST = "sam.tcp.host";
public static final String PROP_TCP_PORT = "sam.tcp.port";
protected static final String DEFAULT_TCP_HOST = "0.0.0.0";
protected static final String DEFAULT_TCP_HOST = "127.0.0.1";
protected static final String DEFAULT_TCP_PORT = "7656";
public static final String PROP_DATAGRAM_HOST = "sam.udp.host";
public static final String PROP_DATAGRAM_PORT = "sam.udp.port";
protected static final String DEFAULT_DATAGRAM_HOST = "0.0.0.0";
protected static final String DEFAULT_DATAGRAM_HOST = "127.0.0.1";
protected static final String DEFAULT_DATAGRAM_PORT = "7655";
@ -456,9 +458,11 @@ public class SAMBridge implements Runnable, ClientApp {
private final String host, keyFile;
private final int port;
private final Properties opts;
private final boolean isSSL;
public Options(String host, int port, Properties opts, String keyFile) {
public Options(String host, int port, boolean isSSL, Properties opts, String keyFile) {
this.host = host; this.port = port; this.opts = opts; this.keyFile = keyFile;
this.isSSL = isSSL;
}
}
@ -479,67 +483,115 @@ public class SAMBridge implements Runnable, ClientApp {
String keyfile = DEFAULT_SAM_KEYFILE;
int port = SAM_LISTENPORT;
String host = DEFAULT_TCP_HOST;
boolean isSSL = false;
Properties opts = null;
if (args.length > 0) {
opts = parseOptions(args, 0);
keyfile = args[0];
int portIndex = 1;
try {
if (args.length>portIndex) port = Integer.parseInt(args[portIndex]);
} catch (NumberFormatException nfe) {
host = args[portIndex];
portIndex++;
try {
if (args.length>portIndex) port = Integer.parseInt(args[portIndex]);
} catch (NumberFormatException nfe1) {
port = Integer.parseInt(opts.getProperty(SAMBridge.PROP_TCP_PORT, SAMBridge.DEFAULT_TCP_PORT));
host = opts.getProperty(SAMBridge.PROP_TCP_HOST, SAMBridge.DEFAULT_TCP_HOST);
}
}
Getopt g = new Getopt("SAM", args, "hs");
int c;
while ((c = g.getopt()) != -1) {
switch (c) {
case 's':
isSSL = true;
break;
case 'h':
case '?':
case ':':
default:
throw new HelpRequestedException();
} // switch
} // while
int startArgs = g.getOptind();
// possible args before ones containing '=';
// (none)
// key port
// key host port
int startOpts;
for (startOpts = startArgs; startOpts < args.length; startOpts++) {
if (args[startOpts].contains("="))
break;
}
return new Options(host, port, opts, keyfile);
int numArgs = startOpts - startArgs;
switch (numArgs) {
case 0:
break;
case 2:
keyfile = args[startArgs];
try {
port = Integer.parseInt(args[startArgs + 1]);
} catch (NumberFormatException nfe) {
throw new HelpRequestedException();
}
break;
case 3:
keyfile = args[startArgs];
host = args[startArgs + 1];
try {
port = Integer.parseInt(args[startArgs + 2]);
} catch (NumberFormatException nfe) {
throw new HelpRequestedException();
}
break;
default:
throw new HelpRequestedException();
}
int remaining = args.length - startOpts;
if (remaining > 0) {
opts = parseOptions(args, startOpts);
}
return new Options(host, port, isSSL, opts, keyfile);
}
/**
* Parse key=value options starting at startArgs.
* @throws HelpRequestedException on any item not of the form key=value.
*/
private static Properties parseOptions(String args[], int startArgs) throws HelpRequestedException {
Properties props = new Properties();
// skip over first few options
for (int i = startArgs; i < args.length; i++) {
if (args[i].equals("-h")) throw new HelpRequestedException();
int eq = args[i].indexOf('=');
if (eq <= 0) continue;
if (eq >= args[i].length()-1) continue;
if (eq <= 0)
throw new HelpRequestedException();
if (eq >= args[i].length()-1)
throw new HelpRequestedException();
String key = args[i].substring(0, eq);
String val = args[i].substring(eq+1);
key = key.trim();
val = val.trim();
if ( (key.length() > 0) && (val.length() > 0) )
props.setProperty(key, val);
else
throw new HelpRequestedException();
}
return props;
}
private static void usage() {
System.err.println("Usage: SAMBridge [keyfile [listenHost] listenPortNum[ name=val]*]");
System.err.println("or:");
System.err.println(" SAMBridge [ name=val ]*");
System.err.println(" keyfile: location to persist private keys (default sam.keys)");
System.err.println(" listenHost: interface to listen on (0.0.0.0 for all interfaces)");
System.err.println(" listenPort: port to listen for SAM connections on (default 7656)");
System.err.println(" name=val: options to pass when connecting via I2CP, such as ");
System.err.println(" i2cp.host=localhost and i2cp.port=7654");
System.err.println("");
System.err.println("Host and ports of the SAM bridge can be specified with the alternate");
System.err.println("form by specifying options "+SAMBridge.PROP_TCP_HOST+" and/or "+
SAMBridge.PROP_TCP_PORT);
System.err.println("");
System.err.println("Options "+SAMBridge.PROP_DATAGRAM_HOST+" and "+SAMBridge.PROP_DATAGRAM_PORT+
" specify the listening ip");
System.err.println("range and the port of SAM datagram server. This server is");
System.err.println("only launched after a client creates the first SAM datagram");
System.err.println("or raw session, after a handshake with SAM version >= 3.0.");
System.err.println("");
System.err.println("The option loglevel=[DEBUG|WARN|ERROR|CRIT] can be used");
System.err.println("for tuning the log verbosity.\n");
System.err.println("Usage: SAMBridge [keyfile [listenHost] listenPortNum[ name=val]*]\n" +
"or:\n" +
" SAMBridge [ name=val ]*\n" +
" keyfile: location to persist private keys (default sam.keys)\n" +
" listenHost: interface to listen on (0.0.0.0 for all interfaces)\n" +
" listenPort: port to listen for SAM connections on (default 7656)\n" +
" name=val: options to pass when connecting via I2CP, such as \n" +
" i2cp.host=localhost and i2cp.port=7654\n" +
"\n" +
"Host and ports of the SAM bridge can be specified with the alternate\n" +
"form by specifying options "+SAMBridge.PROP_TCP_HOST+" and/or "+
SAMBridge.PROP_TCP_PORT +
"\n" +
"Options "+SAMBridge.PROP_DATAGRAM_HOST+" and "+SAMBridge.PROP_DATAGRAM_PORT+
" specify the listening ip\n" +
"range and the port of SAM datagram server. This server is\n" +
"only launched after a client creates the first SAM datagram\n" +
"or raw session, after a handshake with SAM version >= 3.0.\n" +
"\n" +
"The option loglevel=[DEBUG|WARN|ERROR|CRIT] can be used\n" +
"for tuning the log verbosity.");
}
public void run() {