Add support for XEP-0319: Last User Interaction (SMACK-636)

documentation/extensions/index.md

@@ -70,6 +70,7 @@ Smack Extensions and currently supported XEPs of smack-extensions
 | Bits of Binary                              | [XEP-0231](https://xmpp.org/extensions/xep-0231.html)  | n/a       | Including or referring to small bits of binary data in an XML stanza. |
 | Best Practices for Resource Locking         | [XEP-0296](https://xmpp.org/extensions/xep-0296.html)  | n/a       | Specifies best practices to be followed by Jabber/XMPP clients about when to lock into, and unlock away from, resources. |
 | Last Message Correction                     | [XEP-0308](https://xmpp.org/extensions/xep-0308.html)  | n/a       | Provides a method for indicating that a message is a correction of the last sent message. |
+| Last User Interaction in Presence           | [XEP-0319](https://xmpp.org/extensions/xep-0319.html)  | n/a       | Communicate time of last user interaction via XMPP presence notifications. |
 | [Group Chat Invitations](invitation.md)     | n/a                                                    | n/a       | Send invitations to other users to join a group chat room. |
 | [Jive Properties](properties.md)            | n/a                                                    | n/a       | TODO |
 

smack-extensions/src/main/java/org/jivesoftware/smackx/last_interaction/element/IdleElement.java

@@ -0,0 +1,101 @@
+/**
+ *
+ * Copyright © 2018 Paul Schaub
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jivesoftware.smackx.last_interaction.element;
+
+import java.util.Date;
+
+import org.jivesoftware.smack.packet.ExtensionElement;
+import org.jivesoftware.smack.packet.Presence;
+import org.jivesoftware.smack.util.Objects;
+import org.jivesoftware.smack.util.XmlStringBuilder;
+
+public class IdleElement implements ExtensionElement {
+
+    public static final String NAMESPACE = "urn:xmpp:idle:1";
+    public static final String ELEMENT = "idle";
+    public static final String ATTR_SINCE = "since";
+
+    private final Date since;
+
+    /**
+     * Create a new IdleElement with the current date as date of last user interaction.
+     */
+    public IdleElement() {
+        this(new Date());
+    }
+
+    /**
+     * Create a new IdleElement.
+     * @param since date of last user interaction
+     */
+    public IdleElement(Date since) {
+        this.since = Objects.requireNonNull(since);
+    }
+
+    /**
+     * Return the value of last user interaction.
+     * @return date of last interaction
+     */
+    public Date getSince() {
+        return since;
+    }
+
+    /**
+     * Add an Idle element with current date to the presence.
+     * @param presence presence
+     */
+    public static void addToPresence(Presence presence) {
+        presence.addExtension(new IdleElement());
+    }
+
+    /**
+     * Return the IdleElement from a presence.
+     * Returns null, if no IdleElement found.
+     *
+     * @param presence presence
+     * @return idleElement from presence or null
+     */
+    public static IdleElement fromPresence(Presence presence) {
+        return presence.getExtension(ELEMENT, NAMESPACE);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public String getNamespace() {
+        return NAMESPACE;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public String getElementName() {
+        return ELEMENT;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public XmlStringBuilder toXML() {
+        return new XmlStringBuilder(this)
+                .attribute(ATTR_SINCE, since)
+                .closeEmptyElement();
+    }
+}

smack-extensions/src/main/java/org/jivesoftware/smackx/last_interaction/element/package-info.java

@@ -0,0 +1,21 @@
+/**
+ *
+ * Copyright © 2018 Paul Schaub
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Element classes for XEP-0319: Last User Interaction in Presence.
+ */
+package org.jivesoftware.smackx.last_interaction.element;

smack-extensions/src/main/java/org/jivesoftware/smackx/last_interaction/package-info.java

@@ -0,0 +1,21 @@
+/**
+ *
+ * Copyright © 2018 Paul Schaub
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Smack's API for XEP-0319: Last User Interaction in Presence.
+ */
+package org.jivesoftware.smackx.last_interaction;

smack-extensions/src/main/java/org/jivesoftware/smackx/last_interaction/provider/IdleProvider.java

@@ -0,0 +1,40 @@
+/**
+ *
+ * Copyright © 2018 Paul Schaub
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jivesoftware.smackx.last_interaction.provider;
+
+import java.util.Date;
+
+import org.jivesoftware.smack.provider.ExtensionElementProvider;
+import org.jivesoftware.smackx.last_interaction.element.IdleElement;
+
+import org.jxmpp.util.XmppDateTime;
+import org.xmlpull.v1.XmlPullParser;
+
+public class IdleProvider extends ExtensionElementProvider<IdleElement> {
+
+    public static final IdleProvider TEST_INSTANCE = new IdleProvider();
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public IdleElement parse(XmlPullParser parser, int initialDepth) throws Exception {
+        String dateString = parser.getAttributeValue(null, IdleElement.ATTR_SINCE);
+        Date since = XmppDateTime.parseXEP0082Date(dateString);
+        return new IdleElement(since);
+    }
+}

smack-extensions/src/main/java/org/jivesoftware/smackx/last_interaction/provider/package-info.java

@@ -0,0 +1,21 @@
+/**
+ *
+ * Copyright © 2018 Paul Schaub
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Provider classes for XEP-0319: Last User Interaction in Presence.
+ */
+package org.jivesoftware.smackx.last_interaction.provider;

smack-extensions/src/main/resources/org.jivesoftware.smack.extensions/extensions.providers

@@ -514,7 +514,14 @@
         <namespace>urn:xmpp:message-correct:0</namespace>
         <className>org.jivesoftware.smackx.message_correct.provider.MessageCorrectProvider</className>
     </extensionProvider>
-    
+
+    <!-- XEP-0319: Last User Interaction in Presence -->
+    <extensionProvider>
+        <elementName>idle</elementName>
+        <namespace>urn:xmpp:idle:1</namespace>
+        <className>org.jivesoftware.smackx.last_interaction.provider.IdleProvider</className>
+    </extensionProvider>
+
      <!-- XEP-0191 Blocking Command -->
     <iqProvider>
         <elementName>blocklist</elementName>

smack-extensions/src/test/java/org/jivesoftware/smackx/last_interaction/IdleTest.java

@@ -0,0 +1,57 @@
+/**
+ *
+ * Copyright © 2018 Paul Schaub
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jivesoftware.smackx.last_interaction;
+
+import static junit.framework.TestCase.assertEquals;
+import static junit.framework.TestCase.assertNotNull;
+import static org.custommonkey.xmlunit.XMLAssert.assertXMLEqual;
+
+import java.util.Date;
+
+import org.jivesoftware.smack.packet.Presence;
+import org.jivesoftware.smack.test.util.SmackTestSuite;
+import org.jivesoftware.smack.test.util.TestUtils;
+import org.jivesoftware.smackx.last_interaction.element.IdleElement;
+import org.jivesoftware.smackx.last_interaction.provider.IdleProvider;
+
+import org.junit.Test;
+import org.jxmpp.util.XmppDateTime;
+import org.xmlpull.v1.XmlPullParser;
+
+public class IdleTest extends SmackTestSuite {
+
+    @Test
+    public void providerTest() throws Exception {
+        String xml = "<idle xmlns='urn:xmpp:idle:1' since='1969-07-21T02:56:15Z' />";
+        XmlPullParser parser = TestUtils.getParser(xml);
+        assertNotNull(parser);
+        IdleElement parsed = IdleProvider.TEST_INSTANCE.parse(parser);
+        Date date = XmppDateTime.parseXEP0082Date("1969-07-21T02:56:15Z");
+        assertEquals(date, parsed.getSince());
+
+        IdleElement element = new IdleElement(date);
+        assertXMLEqual("<idle xmlns='urn:xmpp:idle:1' since='1969-07-21T02:56:15.000+00:00'/>", element.toXML().toString());
+    }
+
+    @Test
+    public void helperTest() {
+        Presence presence = new Presence(Presence.Type.available);
+        IdleElement.addToPresence(presence);
+        IdleElement element = IdleElement.fromPresence(presence);
+        assertNotNull(element);
+    }
+}