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Add UserAvatarException
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parent
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commit
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3 changed files with 227 additions and 104 deletions
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@ -0,0 +1,66 @@
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/**
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*
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* Copyright 2019 Paul Schaub
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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.avatar;
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public class UserAvatarException extends AssertionError {
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private static final long serialVersionUID = 1L;
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private UserAvatarException(String message) {
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super(message);
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}
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/**
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* Exception that gets thrown, when the {@link org.jivesoftware.smackx.avatar.element.DataExtension DataExtensions}
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* byte count does not match the {@link org.jivesoftware.smackx.avatar.element.MetadataExtension MetadataExtensions}
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* 'bytes' value.
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*/
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public static class AvatarMetadataMismatchException extends UserAvatarException {
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private static final long serialVersionUID = 1L;
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public AvatarMetadataMismatchException(String message) {
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super(message);
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}
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}
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/**
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* Exception that gets thrown when the user tries to publish a {@link org.jivesoftware.smackx.avatar.element.MetadataExtension}
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* that is missing a required {@link MetadataInfo} for an image of type {@link UserAvatarManager#TYPE_PNG}.
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*/
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public static class AvatarMetadataMissingPNGInfoException extends UserAvatarException {
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private static final long serialVersionUID = 1L;
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public AvatarMetadataMissingPNGInfoException(String message) {
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super(message);
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}
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}
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/**
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* Exception that gets thrown when the user tries to fetch a {@link org.jivesoftware.smackx.avatar.element.DataExtension}
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* from PubSub using a {@link MetadataInfo} that does point to a HTTP resource.
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*/
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public static class NotAPubSubAvatarInfoElementException extends UserAvatarException {
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private static final long serialVersionUID = 1L;
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public NotAPubSubAvatarInfoElementException(String message) {
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super(message);
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}
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}
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}
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@ -70,6 +70,10 @@ public final class UserAvatarManager extends Manager {
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private static final Map<XMPPConnection, UserAvatarManager> INSTANCES = new WeakHashMap<>();
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public static final String TYPE_PNG = "image/png";
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public static final String TYPE_GIF = "image/gif";
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public static final String TYPE_JPEG = "image/jpeg";
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private final PepManager pepManager;
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private final ServiceDiscoveryManager serviceDiscoveryManager;
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@ -107,10 +111,10 @@ public final class UserAvatarManager extends Manager {
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*
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* @see <a href="https://xmpp.org/extensions/xep-0163.html">XEP-0163: Personal Eventing Protocol</a>
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*
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* @throws NoResponseException
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* @throws XMPPErrorException
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* @throws NotConnectedException
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* @throws InterruptedException
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* @throws NoResponseException if the server does not respond
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* @throws XMPPErrorException if a protocol level error occurs
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* @throws NotConnectedException if the connection is not connected
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* @throws InterruptedException if the thread is interrupted
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*/
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public boolean isSupportedByServer()
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throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
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@ -162,31 +166,11 @@ public final class UserAvatarManager extends Manager {
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return avatarListeners.remove(listener);
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}
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/**
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* Get the data node.
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* This node contains the avatar image data.
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*
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* @return the data node
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* @throws NoResponseException
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* @throws NotConnectedException
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* @throws InterruptedException
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* @throws XMPPErrorException
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*/
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private LeafNode getOrCreateDataNode()
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throws NoResponseException, NotConnectedException, InterruptedException, XMPPErrorException, PubSubException.NotALeafNodeException {
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return pepManager.getPepPubSubManager().getOrCreateLeafNode(DATA_NAMESPACE);
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}
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/**
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* Get the metadata node.
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* This node contains lightweight metadata information about the data in the data node.
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*
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* @return the metadata node
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* @throws NoResponseException
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* @throws NotConnectedException
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* @throws InterruptedException
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* @throws XMPPErrorException
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*/
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private LeafNode getOrCreateMetadataNode()
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throws NoResponseException, NotConnectedException, InterruptedException, XMPPErrorException, PubSubException.NotALeafNodeException {
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return pepManager.getPepPubSubManager().getOrCreateLeafNode(METADATA_NAMESPACE);
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@ -195,20 +179,22 @@ public final class UserAvatarManager extends Manager {
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/**
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* Publish a PNG Avatar and its metadata to PubSub.
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*
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* @param data
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* @param height
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* @param width
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* @throws XMPPErrorException
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* @throws PubSubException.NotALeafNodeException
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* @throws NotConnectedException
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* @throws InterruptedException
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* @throws NoResponseException
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* @param data raw bytes of the avatar
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* @param height height of the image in pixels
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* @param width width of the image in pixels
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*
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* @throws XMPPErrorException if a protocol level error occurs
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* @throws PubSubException.NotALeafNodeException if either the metadata node or the data node is not a
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* {@link LeafNode}
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* @throws NotConnectedException if the connection is not connected
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* @throws InterruptedException if the thread is interrupted
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* @throws NoResponseException if the server does not respond
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*/
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public void publishAvatar(byte[] data, int height, int width)
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public void publishPNGAvatar(byte[] data, int height, int width)
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throws XMPPErrorException, PubSubException.NotALeafNodeException, NotConnectedException,
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InterruptedException, NoResponseException {
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String id = publishAvatarData(data);
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publishAvatarMetadata(id, data.length, "image/png", height, width);
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String id = publishPNGAvatarData(data);
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publishPNGAvatarMetadata(id, data.length, height, width);
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}
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/**
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@ -218,14 +204,15 @@ public final class UserAvatarManager extends Manager {
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* @param height height of the image
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* @param width width of the image
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*
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* @throws IOException
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* @throws XMPPErrorException
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* @throws PubSubException.NotALeafNodeException
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* @throws NotConnectedException
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* @throws InterruptedException
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* @throws NoResponseException
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* @throws IOException if an {@link IOException} occurs while reading the file
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* @throws XMPPErrorException if a protocol level error occurs
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* @throws PubSubException.NotALeafNodeException if either the metadata node or the data node is not a valid
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* {@link LeafNode}
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* @throws NotConnectedException if the connection is not connected
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* @throws InterruptedException if the thread is interrupted
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* @throws NoResponseException if the server does not respond
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*/
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public void publishAvatar(File pngFile, int height, int width)
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public void publishPNGAvatar(File pngFile, int height, int width)
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throws IOException, XMPPErrorException, PubSubException.NotALeafNodeException, NotConnectedException,
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InterruptedException, NoResponseException {
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try (ByteArrayOutputStream out = new ByteArrayOutputStream((int) pngFile.length());
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@ -236,68 +223,139 @@ public final class UserAvatarManager extends Manager {
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out.write(buffer, 0, read);
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}
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byte[] bytes = out.toByteArray();
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publishAvatar(bytes, height, width);
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publishPNGAvatar(bytes, height, width);
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}
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}
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/**
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* Fetch a published user avatar from their PubSub service.
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*
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* @param from {@link EntityBareJid} of the avatars owner
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* @param metadataInfo {@link MetadataInfo} of the avatar that shall be fetched
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*
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* @return bytes of the avatar
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*
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* @throws InterruptedException if the thread gets interrupted
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* @throws PubSubException.NotALeafNodeException if the data node is not a {@link LeafNode}
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* @throws NoResponseException if the server does not respond
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* @throws NotConnectedException if the connection is not connected
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* @throws XMPPErrorException if a protocol level error occurs
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* @throws PubSubException.NotAPubSubNodeException if the data node is not a valid PubSub node
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* @throws UserAvatarException.AvatarMetadataMismatchException if the data in the data node does not match whats
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* promised by the {@link MetadataInfo} element
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* @throws UserAvatarException.NotAPubSubAvatarInfoElementException if the user tries to fetch the avatar using an
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* info element that points to a HTTP resource
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*/
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public byte[] fetchAvatarFromPubSub(EntityBareJid from, MetadataInfo metadataInfo)
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throws InterruptedException, PubSubException.NotALeafNodeException, NoResponseException,
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NotConnectedException, XMPPErrorException, PubSubException.NotAPubSubNodeException {
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NotConnectedException, XMPPErrorException, PubSubException.NotAPubSubNodeException,
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UserAvatarException.AvatarMetadataMismatchException {
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if (metadataInfo.getUrl() != null) {
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throw new UserAvatarException.NotAPubSubAvatarInfoElementException("Provided MetadataInfo element points to " +
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"a HTTP resource, not to a PubSub item.");
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}
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LeafNode dataNode = PubSubManager.getInstanceFor(connection(), from)
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.getLeafNode(DATA_NAMESPACE);
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List<PayloadItem<DataExtension>> dataItems = dataNode.getItems(1, metadataInfo.getId());
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DataExtension extension = dataItems.get(0).getPayload();
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DataExtension data = dataItems.get(0).getPayload();
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if (data.getData().length != metadataInfo.getBytes().intValue()) {
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throw new UserAvatarException.AvatarMetadataMismatchException("Avatar Data with itemId '" + metadataInfo.getId() +
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"' of " + from.asUnescapedString() + " does not match the Metadata (metadata promises " +
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metadataInfo.getBytes().intValue() + " bytes, data contains " + data.getData().length + " bytes)");
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}
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if (metadataStore != null) {
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metadataStore.setAvatarAvailable(from, metadataInfo.getId());
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}
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return extension.getData();
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return data.getData();
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}
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private String publishAvatarData(byte[] data)
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private String publishPNGAvatarData(byte[] data)
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throws NoResponseException, NotConnectedException, XMPPErrorException, InterruptedException, PubSubException.NotALeafNodeException {
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String itemId = Base64.encodeToString(SHA1.bytes(data));
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publishAvatarData(data, itemId);
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return itemId;
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}
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private void publishAvatarData(byte[] data, String itemId)
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/**
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* Publish some avatar image data to PubSub.
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* Note, that if the image is an image of type {@link #TYPE_PNG}, the itemId MUST be the SHA-1 sum of that image.
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* If however the image is not of type {@link #TYPE_PNG}, the itemId MUST be the SHA-1 sum of the PNG encoded
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* representation of this image (an avatar can be published in several image formats, but at least one of them
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* must be of type {@link #TYPE_PNG}).
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*
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* @param data raw bytes of the image
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* @param itemId SHA-1 sum of the PNG encoded representation of this image.
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*
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* @throws NoResponseException if the server does not respond
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* @throws NotConnectedException if the connection is not connected
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* @throws XMPPErrorException if a protocol level error occurs
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* @throws InterruptedException if the thread is interrupted
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* @throws PubSubException.NotALeafNodeException if the data node is not a {@link LeafNode}.
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*/
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public void publishAvatarData(byte[] data, String itemId)
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throws NoResponseException, NotConnectedException, XMPPErrorException, InterruptedException, PubSubException.NotALeafNodeException {
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DataExtension dataExtension = new DataExtension(data);
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getOrCreateDataNode().publish(new PayloadItem<>(itemId, dataExtension));
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}
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/**
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* Publish metadata about an avatar to the metadata node.
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* Publish metadata about an avatar of type {@link #TYPE_PNG} to the metadata node.
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*
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* @param itemId SHA-1 sum of the image of type image/png
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* @param itemId SHA-1 sum of the image of type {@link #TYPE_PNG}
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* @param info info element containing metadata of the file
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* @param pointers list of metadata pointer elements
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* @param pointers optional list of metadata pointer elements
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*
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* @throws NoResponseException
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* @throws XMPPErrorException
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* @throws NotConnectedException
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* @throws InterruptedException
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* @throws NoResponseException if the server does not respond
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* @throws XMPPErrorException if a protocol level error occurs
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* @throws NotConnectedException of the connection is not connected
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* @throws InterruptedException if the thread is interrupted
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* @throws PubSubException.NotALeafNodeException if the metadata node is not a {@link LeafNode}
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* @throws UserAvatarException.AvatarMetadataMissingPNGInfoException if the info element does not point to an
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* avatar image of type {@link #TYPE_PNG} available in PubSub.
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*/
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public void publishAvatarMetadata(String itemId, MetadataInfo info, List<MetadataPointer> pointers)
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public void publishPNGAvatarMetadata(String itemId, MetadataInfo info, List<MetadataPointer> pointers)
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throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException, PubSubException.NotALeafNodeException {
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publishAvatarMetadata(itemId, Collections.singletonList(info), pointers);
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}
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/**
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* Publish avatar metadata.
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* The list of {@link MetadataInfo} elements can contain info about several image data types. However, there must
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* be at least one {@link MetadataInfo} element about an image of type {@link #TYPE_PNG} which is destined to
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* publication in PubSub. Its id MUST equal the itemId parameter.
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*
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* @param itemId SHA-1 sum of the avatar image representation of type image/png
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* @param itemId SHA-1 sum of the avatar image representation of type {@link #TYPE_PNG}
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* @param infos list of metadata elements
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* @param pointers list of pointer elements
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* @param pointers optional list of pointer elements
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*
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* @throws NoResponseException
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* @throws XMPPErrorException
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* @throws NotConnectedException
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* @throws InterruptedException
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* @throws NoResponseException if the server does not respond
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* @throws XMPPErrorException if a protocol level error occurs
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* @throws NotConnectedException if the connection is not connected
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* @throws InterruptedException if the thread is interrupted
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* @throws PubSubException.NotALeafNodeException if the metadata node is not a {@link LeafNode}
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* @throws UserAvatarException.AvatarMetadataMissingPNGInfoException if the list of {@link MetadataInfo} elements
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* does not contain at least one PNG image
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*
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* @see <a href="https://xmpp.org/extensions/xep-0084.html#proto-info">
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* §4.2.1 Info Element - About the restriction that at least one info element must describe a PNG image.</a>
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*/
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public void publishAvatarMetadata(String itemId, List<MetadataInfo> infos, List<MetadataPointer> pointers)
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throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException, PubSubException.NotALeafNodeException {
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// Check if metadata extension contains at least one png image available in PubSub
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boolean containsPng = false;
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for (MetadataInfo info : infos) {
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if (TYPE_PNG.equals(info.getType())) {
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containsPng = true;
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break;
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}
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}
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if (!containsPng) {
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throw new UserAvatarException.AvatarMetadataMissingPNGInfoException(
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"The MetadataExtension must contain at least one info element describing an image of type " +
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"\"" + TYPE_PNG + "\"");
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}
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MetadataExtension metadataExtension = new MetadataExtension(infos, pointers);
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getOrCreateMetadataNode().publish(new PayloadItem<>(itemId, metadataExtension));
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@ -309,46 +367,46 @@ public final class UserAvatarManager extends Manager {
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}
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/**
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* Publish metadata about an avatar available via HTTP.
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* Publish metadata about a PNG avatar available via HTTP.
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* This method can be used together with HTTP File Upload as an alternative to PubSub for avatar publishing.
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*
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* @param itemId SHA-1 sum of the avatar image file.
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* @param url HTTP(S) Url of the image file.
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* @param bytes size of the file in bytes
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* @param type content type of the file
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* @param pixelsHeight height of the image file in pixels
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* @param pixelsWidth width of the image file in pixels
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*
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* @throws NoResponseException
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* @throws XMPPErrorException
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* @throws NotConnectedException
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* @throws InterruptedException
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* @throws NoResponseException if the server does not respond
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* @throws XMPPErrorException of a protocol level error occurs
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* @throws NotConnectedException if the connection is not connected
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* @throws InterruptedException if the thread is interrupted
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* @throws PubSubException.NotALeafNodeException if the metadata node is not a {@link LeafNode}
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*/
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public void publishHttpAvatarMetadata(String itemId, URL url, long bytes, String type,
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public void publishHttpPNGAvatarMetadata(String itemId, URL url, long bytes,
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int pixelsHeight, int pixelsWidth)
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throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException, PubSubException.NotALeafNodeException {
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MetadataInfo info = new MetadataInfo(itemId, url, bytes, type, pixelsHeight, pixelsWidth);
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publishAvatarMetadata(itemId, info, null);
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MetadataInfo info = new MetadataInfo(itemId, url, bytes, TYPE_PNG, pixelsHeight, pixelsWidth);
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publishPNGAvatarMetadata(itemId, info, null);
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}
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/**
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* Publish avatar metadata with its size in pixels.
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* Publish avatar metadata about a PNG avatar with its size in pixels.
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*
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* @param itemId
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* @param bytes
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* @param type
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* @param pixelsHeight
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* @param pixelsWidth
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* @throws NoResponseException
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* @throws XMPPErrorException
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* @throws NotConnectedException
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* @throws InterruptedException
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* @param itemId SHA-1 hash of the PNG encoded image
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* @param bytes number of bytes of this particular image data array
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* @param pixelsHeight height of this image in pixels
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* @param pixelsWidth width of this image in pixels
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*
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* @throws NoResponseException if the server does not respond
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* @throws XMPPErrorException if a protocol level error occurs
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* @throws NotConnectedException if the connection is not connected
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* @throws PubSubException.NotALeafNodeException if the metadata node is not a {@link LeafNode}
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* @throws InterruptedException if the thread is interrupted
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*/
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public void publishAvatarMetadata(String itemId, long bytes, String type, int pixelsHeight,
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int pixelsWidth)
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public void publishPNGAvatarMetadata(String itemId, long bytes, int pixelsHeight, int pixelsWidth)
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throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException, PubSubException.NotALeafNodeException {
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MetadataInfo info = new MetadataInfo(itemId, null, bytes, type, pixelsHeight, pixelsWidth);
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publishAvatarMetadata(itemId, info, null);
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MetadataInfo info = new MetadataInfo(itemId, null, bytes, TYPE_PNG, pixelsHeight, pixelsWidth);
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publishPNGAvatarMetadata(itemId, info, null);
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}
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/**
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@ -356,10 +414,11 @@ public final class UserAvatarManager extends Manager {
|
|||
*
|
||||
* @see <a href="https://xmpp.org/extensions/xep-0084.html#proto-meta">§4.2 Metadata Element</a>
|
||||
*
|
||||
* @throws NoResponseException
|
||||
* @throws XMPPErrorException
|
||||
* @throws NotConnectedException
|
||||
* @throws InterruptedException
|
||||
* @throws NoResponseException if the server does not respond
|
||||
* @throws XMPPErrorException if a protocol level error occurs
|
||||
* @throws NotConnectedException if the connection is not connected
|
||||
* @throws InterruptedException if the thread is interrupted
|
||||
* @throws PubSubException.NotALeafNodeException if the metadata node is not a {@link LeafNode}
|
||||
*/
|
||||
public void unpublishAvatar()
|
||||
throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException, PubSubException.NotALeafNodeException {
|
||||
|
|
|
|||
|
|
@ -21,7 +21,6 @@ import java.util.List;
|
|||
import java.util.Map;
|
||||
|
||||
import org.jivesoftware.smack.packet.ExtensionElement;
|
||||
import org.jivesoftware.smack.packet.Stanza;
|
||||
import org.jivesoftware.smack.packet.XmlEnvironment;
|
||||
import org.jivesoftware.smack.util.XmlStringBuilder;
|
||||
import org.jivesoftware.smackx.avatar.MetadataInfo;
|
||||
|
|
@ -47,7 +46,7 @@ public class MetadataExtension implements ExtensionElement {
|
|||
/**
|
||||
* Metadata Extension constructor.
|
||||
*
|
||||
* @param infos
|
||||
* @param infos list of {@link MetadataInfo} elements.
|
||||
*/
|
||||
public MetadataExtension(List<MetadataInfo> infos) {
|
||||
this(infos, null);
|
||||
|
|
@ -56,8 +55,8 @@ public class MetadataExtension implements ExtensionElement {
|
|||
/**
|
||||
* Metadata Extension constructor.
|
||||
*
|
||||
* @param infos
|
||||
* @param pointers
|
||||
* @param infos list of {@link MetadataInfo} elements
|
||||
* @param pointers optional list of {@link MetadataPointer} elements
|
||||
*/
|
||||
public MetadataExtension(List<MetadataInfo> infos, List<MetadataPointer> pointers) {
|
||||
this.infos = infos;
|
||||
|
|
@ -82,6 +81,15 @@ public class MetadataExtension implements ExtensionElement {
|
|||
return (pointers == null) ? null : Collections.unmodifiableList(pointers);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return true, if this {@link MetadataExtension} is to be interpreted as Avatar unpublishing.
|
||||
*
|
||||
* @return true if unpublishing, false otherwise
|
||||
*/
|
||||
public boolean isDisablingPublishing() {
|
||||
return getInfoElements().isEmpty();
|
||||
}
|
||||
|
||||
@Override
|
||||
public String getElementName() {
|
||||
return ELEMENT;
|
||||
|
|
@ -160,14 +168,4 @@ public class MetadataExtension implements ExtensionElement {
|
|||
xml.closeEmptyElement();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Return true, if this {@link MetadataExtension} is to be interpreted as Avatar unpublishing.
|
||||
*
|
||||
* @return true if unpublishing, false otherwise
|
||||
*/
|
||||
public boolean isDisablingPublishing() {
|
||||
return getInfoElements().isEmpty();
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue