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package eu.siacs.conversations.generator;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import android.util.Base64;
public abstract class AbstractGenerator {
public final String[] FEATURES = { "urn:xmpp:jingle:1",
"urn:xmpp:jingle:apps:file-transfer:3",
"urn:xmpp:jingle:transports:s5b:1",
"urn:xmpp:jingle:transports:ibb:1",
"urn:xmpp:receipts",
"urn:xmpp:chat-markers:0",
"http://jabber.org/protocol/muc",
"jabber:x:conference",
"http://jabber.org/protocol/caps",
"http://jabber.org/protocol/disco#info",
"urn:xmpp:avatar:metadata+notify"};
public final String IDENTITY_NAME = "Conversations 0.5";
public final String IDENTITY_TYPE = "phone";
/*public final String[] FEATURES = { "http://jabber.org/protocol/muc","http://jabber.org/protocol/disco#info", "http://jabber.org/protocol/disco#items", "http://jabber.org/protocol/caps" };
public final String IDENTITY_NAME = "Exodus 0.9.1";
public final String IDENTITY_TYPE = "pc";*/
public String getCapHash() {
StringBuilder s = new StringBuilder();
s.append("client/"+IDENTITY_TYPE+"//"+IDENTITY_NAME+"<");
MessageDigest md = null;
try {
md = MessageDigest.getInstance("SHA-1");
}
catch(NoSuchAlgorithmException e) {
return null;
}
List<String> features = Arrays.asList(FEATURES);
Collections.sort(features);
for(String feature : features) {
s.append(feature+"<");
}
byte[] sha1 = md.digest(s.toString().getBytes());
return new String(Base64.encode(sha1, Base64.DEFAULT)).trim();
}
}
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