1 files changed, 49 insertions, 0 deletions
diff --git a/src/eu/siacs/conversations/generator/AbstractGenerator.java b/src/eu/siacs/conversations/generator/AbstractGenerator.java
new file mode 100644
index 00000000..49b5d614
--- /dev/null
+++ b/src/eu/siacs/conversations/generator/AbstractGenerator.java
@@ -0,0 +1,49 @@
+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[] 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 final String IDENTITY_NAME = "Conversations 0.5";
+	public final String IDENTITY_TYPE = "phone";
+	
+	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));
+	}
+}