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187 lines
6.8 KiB
Java
187 lines
6.8 KiB
Java
/**
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*
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* Copyright the original author or authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.privacy.provider;
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import java.io.IOException;
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import java.util.ArrayList;
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import org.jivesoftware.smack.datatypes.UInt32;
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import org.jivesoftware.smack.packet.IqData;
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import org.jivesoftware.smack.packet.XmlEnvironment;
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import org.jivesoftware.smack.provider.IqProvider;
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import org.jivesoftware.smack.util.ParserUtils;
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import org.jivesoftware.smack.xml.XmlPullParser;
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import org.jivesoftware.smack.xml.XmlPullParserException;
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import org.jivesoftware.smackx.privacy.packet.Privacy;
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import org.jivesoftware.smackx.privacy.packet.PrivacyItem;
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/**
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* The PrivacyProvider parses {@link Privacy} packets. {@link Privacy}
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* Parses the <code>query</code> sub-document and creates an instance of {@link Privacy}.
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* For each <code>item</code> in the <code>list</code> element, it creates an instance
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* of {@link PrivacyItem}.
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*
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* @author Francisco Vives
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*/
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public class PrivacyProvider extends IqProvider<Privacy> {
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@Override
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public Privacy parse(XmlPullParser parser, int initialDepth, IqData iqData, XmlEnvironment xmlEnvironment)
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throws XmlPullParserException, IOException {
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Privacy privacy = new Privacy();
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boolean done = false;
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while (!done) {
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XmlPullParser.Event eventType = parser.next();
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if (eventType == XmlPullParser.Event.START_ELEMENT) {
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// CHECKSTYLE:OFF
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if (parser.getName().equals("active")) {
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String activeName = parser.getAttributeValue("", "name");
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if (activeName == null) {
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privacy.setDeclineActiveList(true);
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} else {
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privacy.setActiveName(activeName);
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}
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}
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else if (parser.getName().equals("default")) {
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String defaultName = parser.getAttributeValue("", "name");
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if (defaultName == null) {
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privacy.setDeclineDefaultList(true);
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} else {
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privacy.setDefaultName(defaultName);
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}
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}
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// CHECKSTYLE:ON
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else if (parser.getName().equals("list")) {
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parseList(parser, privacy);
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}
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}
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else if (eventType == XmlPullParser.Event.END_ELEMENT) {
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if (parser.getName().equals("query")) {
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done = true;
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}
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}
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}
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return privacy;
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}
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// Parse the list complex type
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private static void parseList(XmlPullParser parser, Privacy privacy) throws XmlPullParserException, IOException {
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boolean done = false;
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String listName = parser.getAttributeValue("", "name");
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ArrayList<PrivacyItem> items = new ArrayList<>();
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while (!done) {
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XmlPullParser.Event eventType = parser.next();
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if (eventType == XmlPullParser.Event.START_ELEMENT) {
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if (parser.getName().equals("item")) {
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// CHECKSTYLE:OFF
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items.add(parseItem(parser));
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// CHECKSTYLE:ON
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}
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}
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else if (eventType == XmlPullParser.Event.END_ELEMENT) {
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if (parser.getName().equals("list")) {
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done = true;
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}
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}
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}
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privacy.setPrivacyList(listName, items);
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// CHECKSTYLE:OFF
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}
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// Parse the list complex type
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private static PrivacyItem parseItem(XmlPullParser parser) throws XmlPullParserException, IOException {
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// CHECKSTYLE:ON
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// Retrieves the required attributes
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String actionValue = parser.getAttributeValue("", "action");
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// Set the order number, this attribute is required
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UInt32 order = ParserUtils.getUInt32Attribute(parser, "order");
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// If type is not set, then it's the fall-through case
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String type = parser.getAttributeValue("", "type");
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/*
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* According the action value it sets the allow status. The fall-through action is assumed
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* to be "allow"
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*/
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boolean allow;
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switch (actionValue) {
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case "allow":
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allow = true;
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break;
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case "deny":
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allow = false;
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break;
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default:
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// TODO: Should be SmackParsingException.
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throw new IOException("Unknown action value '" + actionValue + "'");
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}
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PrivacyItem item;
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if (type != null) {
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// If the type is not null, then we are dealing with a standard privacy item
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String value = parser.getAttributeValue("", "value");
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item = new PrivacyItem(PrivacyItem.Type.valueOf(type), value, allow, order);
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}
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else {
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// If the type is null, then we are dealing with the fall-through privacy item.
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item = new PrivacyItem(allow, order);
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}
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parseItemChildElements(parser, item);
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return item;
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// CHECKSTYLE:OFF
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}
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// CHECKSTYLE:ON
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private static void parseItemChildElements(XmlPullParser parser, PrivacyItem privacyItem) throws XmlPullParserException, IOException {
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final int initialDepth = parser.getDepth();
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outerloop: while (true) {
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XmlPullParser.Event eventType = parser.next();
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switch (eventType) {
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case START_ELEMENT:
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String name = parser.getName();
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switch (name) {
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case "iq":
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privacyItem.setFilterIQ(true);
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break;
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case "message":
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privacyItem.setFilterMessage(true);
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break;
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case "presence-in":
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privacyItem.setFilterPresenceIn(true);
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break;
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case "presence-out":
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privacyItem.setFilterPresenceOut(true);
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break;
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}
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break;
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case END_ELEMENT:
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if (parser.getDepth() == initialDepth) {
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break outerloop;
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}
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break;
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default:
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// Catch all for incomplete switch (MissingCasesInEnumSwitch) statement.
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break;
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}
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}
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}
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}
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