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"}; 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 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)); } }