/**
* The configured SigType to expect on read-in
*
* @since 0.9.16
*/
public static SigType getSigTypeConfig(RouterContext ctx) {
SigType cstype = DEFAULT_SIGTYPE;
String sstype = ctx.getProperty(PROP_ROUTER_SIGTYPE);
if (sstype != null) {
SigType ntype = SigType.parseSigType(sstype);
if (ntype != null) cstype = ntype;
}
// fallback?
if (cstype != SigType.DSA_SHA1 && !cstype.isAvailable()) cstype = SigType.DSA_SHA1;
return cstype;
}
/**
* @param opts may be null
* @since 0.9.21 copied from I2PSocketManagerFactory
*/
private SigType getSigType(Properties opts) {
if (opts != null) {
String st = opts.getProperty(I2PClient.PROP_SIGTYPE);
if (st != null) {
SigType rv = SigType.parseSigType(st);
if (rv != null && rv.isAvailable()) return rv;
if (rv != null) st = rv.toString();
_log.logAlways(
Log.WARN, "Unsupported sig type " + st + ", reverting to " + I2PClient.DEFAULT_SIGTYPE);
// TODO throw instead?
}
}
return I2PClient.DEFAULT_SIGTYPE;
}
/* Parse and execute a DEST message*/
protected boolean execDestMessage(String opcode, Properties props) {
if (opcode.equals("GENERATE")) {
String sigTypeStr = props.getProperty("SIGNATURE_TYPE");
SigType sigType;
if (sigTypeStr != null) {
sigType = SigType.parseSigType(sigTypeStr);
if (sigType == null) {
writeString(
"DEST REPLY RESULT=I2P_ERROR MESSAGE=\"SIGNATURE_TYPE "
+ sigTypeStr
+ " unsupported\"\n");
return false;
}
} else {
sigType = SigType.DSA_SHA1;
}
ByteArrayOutputStream priv = new ByteArrayOutputStream(663);
ByteArrayOutputStream pub = new ByteArrayOutputStream(387);
SAMUtils.genRandomKey(priv, pub, sigType);
return writeString(
"DEST REPLY"
+ " PUB="
+ Base64.encode(pub.toByteArray())
+ " PRIV="
+ Base64.encode(priv.toByteArray())
+ "\n");
} else {
writeString("DEST REPLY RESULT=I2P_ERROR MESSAGE=\"DEST GENERATE required\"");
if (_log.shouldLog(Log.DEBUG))
_log.debug("Unrecognized DEST message opcode: \"" + opcode + "\"");
return false;
}
}
static {
for (SigType type : SigType.values()) {
BY_CODE.put(Integer.valueOf(type.getCode()), type);
}
}