1 files changed, 57 insertions, 0 deletions
diff --git a/conversations/src/main/java/eu/siacs/conversations/generator/PresenceGenerator.java b/conversations/src/main/java/eu/siacs/conversations/generator/PresenceGenerator.java
new file mode 100644
index 00000000..d896dd00
--- /dev/null
+++ b/conversations/src/main/java/eu/siacs/conversations/generator/PresenceGenerator.java
@@ -0,0 +1,57 @@
+package eu.siacs.conversations.generator;
+
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Contact;
+import eu.siacs.conversations.services.XmppConnectionService;
+import eu.siacs.conversations.xml.Element;
+import eu.siacs.conversations.xmpp.stanzas.PresencePacket;
+
+public class PresenceGenerator extends AbstractGenerator {
+
+	public PresenceGenerator(XmppConnectionService service) {
+		super(service);
+	}
+
+	private PresencePacket subscription(String type, Contact contact) {
+		PresencePacket packet = new PresencePacket();
+		packet.setAttribute("type", type);
+		packet.setAttribute("to", contact.getJid());
+		packet.setAttribute("from", contact.getAccount().getJid());
+		return packet;
+	}
+
+	public PresencePacket requestPresenceUpdatesFrom(Contact contact) {
+		return subscription("subscribe", contact);
+	}
+
+	public PresencePacket stopPresenceUpdatesFrom(Contact contact) {
+		return subscription("unsubscribe", contact);
+	}
+
+	public PresencePacket stopPresenceUpdatesTo(Contact contact) {
+		return subscription("unsubscribed", contact);
+	}
+
+	public PresencePacket sendPresenceUpdatesTo(Contact contact) {
+		return subscription("subscribed", contact);
+	}
+
+	public PresencePacket sendPresence(Account account) {
+		PresencePacket packet = new PresencePacket();
+		packet.setAttribute("from", account.getFullJid());
+		String sig = account.getPgpSignature();
+		if (sig != null) {
+			packet.addChild("status").setContent("online");
+			packet.addChild("x", "jabber:x:signed").setContent(sig);
+		}
+		String capHash = getCapHash();
+		if (capHash != null) {
+			Element cap = packet.addChild("c",
+					"http://jabber.org/protocol/caps");
+			cap.setAttribute("hash", "sha-1");
+			cap.setAttribute("node", "http://conversions.siacs.eu");
+			cap.setAttribute("ver", capHash);
+		}
+		return packet;
+	}
+}
+\ No newline at end of file