package net.i2p.router.web;
import java.util.Date;
import net.i2p.data.DataHelper;
import net.i2p.data.router.RouterAddress;
import net.i2p.data.router.RouterInfo;
import net.i2p.data.Signature;
/**
* Sign a statement about this router.
* @since 0.9.8
*/
public class ProofHelper extends HelperBase {
public String getProof() {
StringBuilder buf = new StringBuilder(512);
RouterInfo us = _context.router().getRouterInfo();
buf.append("Hash: ").append(us.getIdentity().calculateHash().toBase64()).append('\n');
//buf.append("Ident: ").append(us.getIdentity().toBase64()).append('\n');
for (RouterAddress addr : us.getAddresses()) {
buf.append(addr.getTransportStyle()).append(": ").append(addr.getHost()).append('\n');
}
buf.append("Caps: ").append(us.getCapabilities()).append('\n');
buf.append("Date: ").append(new Date()); // no trailing newline
String msg = buf.toString();
byte[] data = DataHelper.getUTF8(msg);
Signature sig = _context.dsa().sign(data, _context.keyManager().getSigningPrivateKey());
buf.setLength(0);
buf.append("---BEGIN I2P SIGNED MESSAGE---\n");
buf.append(msg);
buf.append("\n---BEGIN I2P SIGNATURE---\n");
buf.append(sig.toBase64());
buf.append("\n---END I2P SIGNATURE---");
return buf.toString();
}
}