285 lines
13 KiB
Java
285 lines
13 KiB
Java
package eu.siacs.conversations.generator;
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import java.net.URL;
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import java.text.SimpleDateFormat;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.Locale;
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import java.util.TimeZone;
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import eu.siacs.conversations.Config;
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import eu.siacs.conversations.crypto.axolotl.AxolotlService;
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import eu.siacs.conversations.crypto.axolotl.XmppAxolotlMessage;
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import eu.siacs.conversations.entities.Account;
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import eu.siacs.conversations.entities.Conversation;
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import eu.siacs.conversations.entities.Conversational;
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import eu.siacs.conversations.entities.Message;
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import eu.siacs.conversations.http.P1S3UrlStreamHandler;
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import eu.siacs.conversations.services.XmppConnectionService;
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import eu.siacs.conversations.xml.Element;
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import eu.siacs.conversations.xml.Namespace;
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import eu.siacs.conversations.xmpp.chatstate.ChatState;
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import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
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import eu.siacs.conversations.xmpp.jingle.JingleRtpConnection;
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import eu.siacs.conversations.xmpp.jingle.Media;
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import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
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import eu.siacs.conversations.xmpp.Jid;
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public class MessageGenerator extends AbstractGenerator {
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private static final String OMEMO_FALLBACK_MESSAGE = "I sent you an OMEMO encrypted message but your client doesn’t seem to support that. Find more information on https://conversations.im/omemo";
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private static final String PGP_FALLBACK_MESSAGE = "I sent you a PGP encrypted message but your client doesn’t seem to support that.";
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public MessageGenerator(XmppConnectionService service) {
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super(service);
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}
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private MessagePacket preparePacket(Message message) {
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Conversation conversation = (Conversation) message.getConversation();
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Account account = conversation.getAccount();
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MessagePacket packet = new MessagePacket();
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final boolean isWithSelf = conversation.getContact().isSelf();
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if (conversation.getMode() == Conversation.MODE_SINGLE) {
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packet.setTo(message.getCounterpart());
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packet.setType(MessagePacket.TYPE_CHAT);
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if (!isWithSelf) {
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packet.addChild("request", "urn:xmpp:receipts");
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}
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} else if (message.isPrivateMessage()) {
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packet.setTo(message.getCounterpart());
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packet.setType(MessagePacket.TYPE_CHAT);
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packet.addChild("x", "http://jabber.org/protocol/muc#user");
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packet.addChild("request", "urn:xmpp:receipts");
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} else {
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packet.setTo(message.getCounterpart().asBareJid());
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packet.setType(MessagePacket.TYPE_GROUPCHAT);
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}
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if (conversation.isSingleOrPrivateAndNonAnonymous() && !message.isPrivateMessage()) {
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packet.addChild("markable", "urn:xmpp:chat-markers:0");
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}
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packet.setFrom(account.getJid());
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packet.setId(message.getUuid());
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packet.addChild("origin-id", Namespace.STANZA_IDS).setAttribute("id", message.getUuid());
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if (message.edited()) {
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packet.addChild("replace", "urn:xmpp:message-correct:0").setAttribute("id", message.getEditedIdWireFormat());
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}
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return packet;
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}
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public void addDelay(MessagePacket packet, long timestamp) {
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final SimpleDateFormat mDateFormat = new SimpleDateFormat(
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"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
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mDateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
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Element delay = packet.addChild("delay", "urn:xmpp:delay");
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Date date = new Date(timestamp);
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delay.setAttribute("stamp", mDateFormat.format(date));
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}
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public MessagePacket generateAxolotlChat(Message message, XmppAxolotlMessage axolotlMessage) {
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MessagePacket packet = preparePacket(message);
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if (axolotlMessage == null) {
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return null;
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}
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packet.setAxolotlMessage(axolotlMessage.toElement());
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packet.setBody(OMEMO_FALLBACK_MESSAGE);
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packet.addChild("store", "urn:xmpp:hints");
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packet.addChild("encryption", "urn:xmpp:eme:0")
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.setAttribute("name", "OMEMO")
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.setAttribute("namespace", AxolotlService.PEP_PREFIX);
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return packet;
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}
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public MessagePacket generateKeyTransportMessage(Jid to, XmppAxolotlMessage axolotlMessage) {
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MessagePacket packet = new MessagePacket();
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packet.setType(MessagePacket.TYPE_CHAT);
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packet.setTo(to);
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packet.setAxolotlMessage(axolotlMessage.toElement());
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packet.addChild("store", "urn:xmpp:hints");
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return packet;
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}
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public MessagePacket generateChat(Message message) {
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MessagePacket packet = preparePacket(message);
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String content;
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if (message.hasFileOnRemoteHost()) {
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Message.FileParams fileParams = message.getFileParams();
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final URL url = fileParams.url;
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if (P1S3UrlStreamHandler.PROTOCOL_NAME.equals(url.getProtocol())) {
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Element x = packet.addChild("x", Namespace.P1_S3_FILE_TRANSFER);
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final String file = url.getFile();
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x.setAttribute("name", file.charAt(0) == '/' ? file.substring(1) : file);
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x.setAttribute("fileid", url.getHost());
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return packet;
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} else {
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content = url.toString();
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packet.addChild("x", Namespace.OOB).addChild("url").setContent(content);
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}
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} else {
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content = message.getBody();
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}
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packet.setBody(content);
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return packet;
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}
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public MessagePacket generatePgpChat(Message message) {
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MessagePacket packet = preparePacket(message);
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if (message.hasFileOnRemoteHost()) {
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Message.FileParams fileParams = message.getFileParams();
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final URL url = fileParams.url;
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if (P1S3UrlStreamHandler.PROTOCOL_NAME.equals(url.getProtocol())) {
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Element x = packet.addChild("x", Namespace.P1_S3_FILE_TRANSFER);
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final String file = url.getFile();
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x.setAttribute("name", file.charAt(0) == '/' ? file.substring(1) : file);
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x.setAttribute("fileid", url.getHost());
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} else {
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packet.setBody(url.toString());
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packet.addChild("x", Namespace.OOB).addChild("url").setContent(url.toString());
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}
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} else {
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if (Config.supportUnencrypted()) {
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packet.setBody(PGP_FALLBACK_MESSAGE);
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}
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if (message.getEncryption() == Message.ENCRYPTION_DECRYPTED) {
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packet.addChild("x", "jabber:x:encrypted").setContent(message.getEncryptedBody());
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} else if (message.getEncryption() == Message.ENCRYPTION_PGP) {
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packet.addChild("x", "jabber:x:encrypted").setContent(message.getBody());
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}
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packet.addChild("encryption", "urn:xmpp:eme:0")
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.setAttribute("namespace", "jabber:x:encrypted");
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}
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return packet;
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}
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public MessagePacket generateChatState(Conversation conversation) {
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final Account account = conversation.getAccount();
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MessagePacket packet = new MessagePacket();
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packet.setType(conversation.getMode() == Conversation.MODE_MULTI ? MessagePacket.TYPE_GROUPCHAT : MessagePacket.TYPE_CHAT);
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packet.setTo(conversation.getJid().asBareJid());
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packet.setFrom(account.getJid());
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packet.addChild(ChatState.toElement(conversation.getOutgoingChatState()));
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packet.addChild("no-store", "urn:xmpp:hints");
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packet.addChild("no-storage", "urn:xmpp:hints"); //wrong! don't copy this. Its *store*
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return packet;
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}
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public MessagePacket confirm(final Message message) {
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final boolean groupChat = message.getConversation().getMode() == Conversational.MODE_MULTI;
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final Jid to = message.getCounterpart();
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final MessagePacket packet = new MessagePacket();
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packet.setType(groupChat ? MessagePacket.TYPE_GROUPCHAT : MessagePacket.TYPE_CHAT);
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packet.setTo(groupChat ? to.asBareJid() : to);
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final Element displayed = packet.addChild("displayed", "urn:xmpp:chat-markers:0");
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if (groupChat) {
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final String stanzaId = message.getServerMsgId();
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if (stanzaId != null) {
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displayed.setAttribute("id", stanzaId);
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} else {
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displayed.setAttribute("sender", to.toString());
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displayed.setAttribute("id", message.getRemoteMsgId());
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}
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} else {
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displayed.setAttribute("id", message.getRemoteMsgId());
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}
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packet.addChild("store", "urn:xmpp:hints");
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return packet;
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}
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public MessagePacket conferenceSubject(Conversation conversation, String subject) {
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MessagePacket packet = new MessagePacket();
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packet.setType(MessagePacket.TYPE_GROUPCHAT);
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packet.setTo(conversation.getJid().asBareJid());
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packet.addChild("subject").setContent(subject);
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packet.setFrom(conversation.getAccount().getJid().asBareJid());
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return packet;
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}
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public MessagePacket directInvite(final Conversation conversation, final Jid contact) {
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MessagePacket packet = new MessagePacket();
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packet.setType(MessagePacket.TYPE_NORMAL);
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packet.setTo(contact);
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packet.setFrom(conversation.getAccount().getJid());
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Element x = packet.addChild("x", "jabber:x:conference");
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x.setAttribute("jid", conversation.getJid().asBareJid().toString());
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String password = conversation.getMucOptions().getPassword();
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if (password != null) {
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x.setAttribute("password", password);
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}
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if (contact.isFullJid()) {
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packet.addChild("no-store", "urn:xmpp:hints");
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packet.addChild("no-copy", "urn:xmpp:hints");
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}
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return packet;
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}
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public MessagePacket invite(Conversation conversation, Jid contact) {
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MessagePacket packet = new MessagePacket();
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packet.setTo(conversation.getJid().asBareJid());
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packet.setFrom(conversation.getAccount().getJid());
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Element x = new Element("x");
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x.setAttribute("xmlns", "http://jabber.org/protocol/muc#user");
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Element invite = new Element("invite");
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invite.setAttribute("to", contact.asBareJid().toString());
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x.addChild(invite);
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packet.addChild(x);
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return packet;
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}
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public MessagePacket received(Account account, MessagePacket originalMessage, ArrayList<String> namespaces, int type) {
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MessagePacket receivedPacket = new MessagePacket();
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receivedPacket.setType(type);
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receivedPacket.setTo(originalMessage.getFrom());
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receivedPacket.setFrom(account.getJid());
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for (String namespace : namespaces) {
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receivedPacket.addChild("received", namespace).setAttribute("id", originalMessage.getId());
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}
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receivedPacket.addChild("store", "urn:xmpp:hints");
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return receivedPacket;
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}
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public MessagePacket received(Account account, Jid to, String id) {
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MessagePacket packet = new MessagePacket();
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packet.setFrom(account.getJid());
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packet.setTo(to);
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packet.addChild("received", "urn:xmpp:receipts").setAttribute("id", id);
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packet.addChild("store", "urn:xmpp:hints");
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return packet;
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}
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public MessagePacket sessionProposal(final JingleConnectionManager.RtpSessionProposal proposal) {
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final MessagePacket packet = new MessagePacket();
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packet.setType(MessagePacket.TYPE_CHAT); //we want to carbon copy those
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packet.setTo(proposal.with);
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packet.setId(JingleRtpConnection.JINGLE_MESSAGE_PROPOSE_ID_PREFIX + proposal.sessionId);
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final Element propose = packet.addChild("propose", Namespace.JINGLE_MESSAGE);
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propose.setAttribute("id", proposal.sessionId);
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for (final Media media : proposal.media) {
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propose.addChild("description", Namespace.JINGLE_APPS_RTP).setAttribute("media", media.toString());
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}
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packet.addChild("request", "urn:xmpp:receipts");
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packet.addChild("store", "urn:xmpp:hints");
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return packet;
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}
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public MessagePacket sessionRetract(final JingleConnectionManager.RtpSessionProposal proposal) {
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final MessagePacket packet = new MessagePacket();
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packet.setType(MessagePacket.TYPE_CHAT); //we want to carbon copy those
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packet.setTo(proposal.with);
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final Element propose = packet.addChild("retract", Namespace.JINGLE_MESSAGE);
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propose.setAttribute("id", proposal.sessionId);
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propose.addChild("description", Namespace.JINGLE_APPS_RTP);
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packet.addChild("store", "urn:xmpp:hints");
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return packet;
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}
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public MessagePacket sessionReject(final Jid with, final String sessionId) {
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final MessagePacket packet = new MessagePacket();
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packet.setType(MessagePacket.TYPE_CHAT); //we want to carbon copy those
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packet.setTo(with);
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final Element propose = packet.addChild("reject", Namespace.JINGLE_MESSAGE);
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propose.setAttribute("id", sessionId);
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propose.addChild("description", Namespace.JINGLE_APPS_RTP);
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packet.addChild("store", "urn:xmpp:hints");
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return packet;
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}
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}
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