Merge branch 'gradle' into development

Conflicts:
	.gitignore
	CHANGELOG.md
	README.md
	libs/MemorizingTrustManager
	libs/minidns
	libs/openpgp-api-lib

1 files changed, 525 insertions, 0 deletions

diff --git a/src/main/java/eu/siacs/conversations/parser/MessageParser.java b/src/main/java/eu/siacs/conversations/parser/MessageParser.java
new file mode 100644
index 000000000..383ac89a6
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/parser/MessageParser.java
@@ -0,0 +1,525 @@
+package eu.siacs.conversations.parser;
+
+import net.java.otr4j.session.Session;
+import net.java.otr4j.session.SessionStatus;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.entities.Contact;
+import eu.siacs.conversations.entities.Conversation;
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.services.NotificationService;
+import eu.siacs.conversations.services.XmppConnectionService;
+import eu.siacs.conversations.utils.CryptoHelper;
+import eu.siacs.conversations.xml.Element;
+import eu.siacs.conversations.xmpp.OnMessagePacketReceived;
+import eu.siacs.conversations.xmpp.pep.Avatar;
+import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
+
+public class MessageParser extends AbstractParser implements
+		OnMessagePacketReceived {
+	public MessageParser(XmppConnectionService service) {
+		super(service);
+	}
+
+	private Message parseChat(MessagePacket packet, Account account) {
+		String[] fromParts = packet.getFrom().split("/", 2);
+		Conversation conversation = mXmppConnectionService
+				.findOrCreateConversation(account, fromParts[0], false);
+		updateLastseen(packet, account, true);
+		String pgpBody = getPgpBody(packet);
+		Message finishedMessage;
+		if (pgpBody != null) {
+			finishedMessage = new Message(conversation, packet.getFrom(),
+					pgpBody, Message.ENCRYPTION_PGP, Message.STATUS_RECEIVED);
+		} else {
+			finishedMessage = new Message(conversation, packet.getFrom(),
+					packet.getBody(), Message.ENCRYPTION_NONE,
+					Message.STATUS_RECEIVED);
+		}
+		finishedMessage.setRemoteMsgId(packet.getId());
+		finishedMessage.markable = isMarkable(packet);
+		if (conversation.getMode() == Conversation.MODE_MULTI
+				&& fromParts.length >= 2) {
+			finishedMessage.setType(Message.TYPE_PRIVATE);
+			finishedMessage.setPresence(fromParts[1]);
+			finishedMessage.setTrueCounterpart(conversation.getMucOptions()
+					.getTrueCounterpart(fromParts[1]));
+			if (conversation.hasDuplicateMessage(finishedMessage)) {
+				return null;
+			}
+
+		}
+		finishedMessage.setTime(getTimestamp(packet));
+		return finishedMessage;
+	}
+
+	private Message parseOtrChat(MessagePacket packet, Account account) {
+		boolean properlyAddressed = (packet.getTo().split("/", 2).length == 2)
+				|| (account.countPresences() == 1);
+		String[] fromParts = packet.getFrom().split("/", 2);
+		Conversation conversation = mXmppConnectionService
+				.findOrCreateConversation(account, fromParts[0], false);
+		String presence;
+		if (fromParts.length >= 2) {
+			presence = fromParts[1];
+		} else {
+			presence = "";
+		}
+		updateLastseen(packet, account, true);
+		String body = packet.getBody();
+		if (body.matches("^\\?OTRv\\d*\\?")) {
+			conversation.endOtrIfNeeded();
+		}
+		if (!conversation.hasValidOtrSession()) {
+			if (properlyAddressed) {
+				conversation.startOtrSession(mXmppConnectionService, presence,
+						false);
+			} else {
+				return null;
+			}
+		} else {
+			String foreignPresence = conversation.getOtrSession()
+					.getSessionID().getUserID();
+			if (!foreignPresence.equals(presence)) {
+				conversation.endOtrIfNeeded();
+				if (properlyAddressed) {
+					conversation.startOtrSession(mXmppConnectionService,
+							presence, false);
+				} else {
+					return null;
+				}
+			}
+		}
+		try {
+			Session otrSession = conversation.getOtrSession();
+			SessionStatus before = otrSession.getSessionStatus();
+			body = otrSession.transformReceiving(body);
+			SessionStatus after = otrSession.getSessionStatus();
+			if ((before != after) && (after == SessionStatus.ENCRYPTED)) {
+				mXmppConnectionService.onOtrSessionEstablished(conversation);
+			} else if ((before != after) && (after == SessionStatus.FINISHED)) {
+				conversation.resetOtrSession();
+				mXmppConnectionService.updateConversationUi();
+			}
+			if ((body == null) || (body.isEmpty())) {
+				return null;
+			}
+			if (body.startsWith(CryptoHelper.FILETRANSFER)) {
+				String key = body.substring(CryptoHelper.FILETRANSFER.length());
+				conversation.setSymmetricKey(CryptoHelper.hexToBytes(key));
+				return null;
+			}
+			Message finishedMessage = new Message(conversation,
+					packet.getFrom(), body, Message.ENCRYPTION_OTR,
+					Message.STATUS_RECEIVED);
+			finishedMessage.setTime(getTimestamp(packet));
+			finishedMessage.setRemoteMsgId(packet.getId());
+			finishedMessage.markable = isMarkable(packet);
+			return finishedMessage;
+		} catch (Exception e) {
+			String receivedId = packet.getId();
+			if (receivedId != null) {
+				mXmppConnectionService.replyWithNotAcceptable(account, packet);
+			}
+			conversation.resetOtrSession();
+			return null;
+		}
+	}
+
+	private Message parseGroupchat(MessagePacket packet, Account account) {
+		int status;
+		String[] fromParts = packet.getFrom().split("/", 2);
+		if (mXmppConnectionService.find(account.pendingConferenceLeaves,
+				account, fromParts[0]) != null) {
+			return null;
+		}
+		Conversation conversation = mXmppConnectionService
+				.findOrCreateConversation(account, fromParts[0], true);
+		if (packet.hasChild("subject")) {
+			conversation.getMucOptions().setSubject(
+					packet.findChild("subject").getContent());
+			mXmppConnectionService.updateConversationUi();
+			return null;
+		}
+		if ((fromParts.length == 1)) {
+			return null;
+		}
+		String counterPart = fromParts[1];
+		if (counterPart.equals(conversation.getMucOptions().getActualNick())) {
+			if (mXmppConnectionService.markMessage(conversation,
+					packet.getId(), Message.STATUS_SEND)) {
+				return null;
+			} else {
+				status = Message.STATUS_SEND;
+			}
+		} else {
+			status = Message.STATUS_RECEIVED;
+		}
+		String pgpBody = getPgpBody(packet);
+		Message finishedMessage;
+		if (pgpBody == null) {
+			finishedMessage = new Message(conversation, counterPart,
+					packet.getBody(), Message.ENCRYPTION_NONE, status);
+		} else {
+			finishedMessage = new Message(conversation, counterPart, pgpBody,
+					Message.ENCRYPTION_PGP, status);
+		}
+		finishedMessage.setRemoteMsgId(packet.getId());
+		finishedMessage.markable = isMarkable(packet);
+		if (status == Message.STATUS_RECEIVED) {
+			finishedMessage.setTrueCounterpart(conversation.getMucOptions()
+					.getTrueCounterpart(counterPart));
+		}
+		if (packet.hasChild("delay")
+				&& conversation.hasDuplicateMessage(finishedMessage)) {
+			return null;
+		}
+		finishedMessage.setTime(getTimestamp(packet));
+		return finishedMessage;
+	}
+
+	private Message parseCarbonMessage(MessagePacket packet, Account account) {
+		int status;
+		String fullJid;
+		Element forwarded;
+		if (packet.hasChild("received", "urn:xmpp:carbons:2")) {
+			forwarded = packet.findChild("received", "urn:xmpp:carbons:2")
+					.findChild("forwarded", "urn:xmpp:forward:0");
+			status = Message.STATUS_RECEIVED;
+		} else if (packet.hasChild("sent", "urn:xmpp:carbons:2")) {
+			forwarded = packet.findChild("sent", "urn:xmpp:carbons:2")
+					.findChild("forwarded", "urn:xmpp:forward:0");
+			status = Message.STATUS_SEND;
+		} else {
+			return null;
+		}
+		if (forwarded == null) {
+			return null;
+		}
+		Element message = forwarded.findChild("message");
+		if (message == null) {
+			return null;
+		}
+		if (!message.hasChild("body")) {
+			if (status == Message.STATUS_RECEIVED
+					&& message.getAttribute("from") != null) {
+				parseNonMessage(message, account);
+			} else if (status == Message.STATUS_SEND
+					&& message.hasChild("displayed", "urn:xmpp:chat-markers:0")) {
+				String to = message.getAttribute("to");
+				if (to != null) {
+					Conversation conversation = mXmppConnectionService.find(
+							mXmppConnectionService.getConversations(), account,
+							to.split("/")[0]);
+					if (conversation != null) {
+						mXmppConnectionService.markRead(conversation, false);
+					}
+				}
+			}
+			return null;
+		}
+		if (status == Message.STATUS_RECEIVED) {
+			fullJid = message.getAttribute("from");
+			if (fullJid == null) {
+				return null;
+			} else {
+				updateLastseen(message, account, true);
+			}
+		} else {
+			fullJid = message.getAttribute("to");
+			if (fullJid == null) {
+				return null;
+			}
+		}
+		String[] parts = fullJid.split("/", 2);
+		Conversation conversation = mXmppConnectionService
+				.findOrCreateConversation(account, parts[0], false);
+		String pgpBody = getPgpBody(message);
+		Message finishedMessage;
+		if (pgpBody != null) {
+			finishedMessage = new Message(conversation, fullJid, pgpBody,
+					Message.ENCRYPTION_PGP, status);
+		} else {
+			String body = message.findChild("body").getContent();
+			finishedMessage = new Message(conversation, fullJid, body,
+					Message.ENCRYPTION_NONE, status);
+		}
+		finishedMessage.setTime(getTimestamp(message));
+		finishedMessage.setRemoteMsgId(message.getAttribute("id"));
+		finishedMessage.markable = isMarkable(message);
+		if (conversation.getMode() == Conversation.MODE_MULTI
+				&& parts.length >= 2) {
+			finishedMessage.setType(Message.TYPE_PRIVATE);
+			finishedMessage.setPresence(parts[1]);
+			finishedMessage.setTrueCounterpart(conversation.getMucOptions()
+					.getTrueCounterpart(parts[1]));
+			if (conversation.hasDuplicateMessage(finishedMessage)) {
+				return null;
+			}
+		}
+		return finishedMessage;
+	}
+
+	private void parseError(MessagePacket packet, Account account) {
+		String[] fromParts = packet.getFrom().split("/", 2);
+		mXmppConnectionService.markMessage(account, fromParts[0],
+				packet.getId(), Message.STATUS_SEND_FAILED);
+	}
+
+	private void parseNonMessage(Element packet, Account account) {
+		String from = packet.getAttribute("from");
+		if (packet.hasChild("event", "http://jabber.org/protocol/pubsub#event")) {
+			Element event = packet.findChild("event",
+					"http://jabber.org/protocol/pubsub#event");
+			parseEvent(event, packet.getAttribute("from"), account);
+		} else if (from != null
+				&& packet.hasChild("displayed", "urn:xmpp:chat-markers:0")) {
+			String id = packet
+					.findChild("displayed", "urn:xmpp:chat-markers:0")
+					.getAttribute("id");
+			updateLastseen(packet, account, true);
+			mXmppConnectionService.markMessage(account, from.split("/", 2)[0],
+					id, Message.STATUS_SEND_DISPLAYED);
+		} else if (from != null
+				&& packet.hasChild("received", "urn:xmpp:chat-markers:0")) {
+			String id = packet.findChild("received", "urn:xmpp:chat-markers:0")
+					.getAttribute("id");
+			updateLastseen(packet, account, false);
+			mXmppConnectionService.markMessage(account, from.split("/", 2)[0],
+					id, Message.STATUS_SEND_RECEIVED);
+		} else if (from != null
+				&& packet.hasChild("received", "urn:xmpp:receipts")) {
+			String id = packet.findChild("received", "urn:xmpp:receipts")
+					.getAttribute("id");
+			updateLastseen(packet, account, false);
+			mXmppConnectionService.markMessage(account, from.split("/", 2)[0],
+					id, Message.STATUS_SEND_RECEIVED);
+		} else if (packet.hasChild("x", "http://jabber.org/protocol/muc#user")) {
+			Element x = packet.findChild("x",
+					"http://jabber.org/protocol/muc#user");
+			if (x.hasChild("invite")) {
+				Conversation conversation = mXmppConnectionService
+						.findOrCreateConversation(account,
+								packet.getAttribute("from"), true);
+				if (!conversation.getMucOptions().online()) {
+					if (x.hasChild("password")) {
+						Element password = x.findChild("password");
+						conversation.getMucOptions().setPassword(
+								password.getContent());
+						mXmppConnectionService.databaseBackend
+								.updateConversation(conversation);
+					}
+					mXmppConnectionService.joinMuc(conversation);
+					mXmppConnectionService.updateConversationUi();
+				}
+			}
+		} else if (packet.hasChild("x", "jabber:x:conference")) {
+			Element x = packet.findChild("x", "jabber:x:conference");
+			String jid = x.getAttribute("jid");
+			String password = x.getAttribute("password");
+			if (jid != null) {
+				Conversation conversation = mXmppConnectionService
+						.findOrCreateConversation(account, jid, true);
+				if (!conversation.getMucOptions().online()) {
+					if (password != null) {
+						conversation.getMucOptions().setPassword(password);
+						mXmppConnectionService.databaseBackend
+								.updateConversation(conversation);
+					}
+					mXmppConnectionService.joinMuc(conversation);
+					mXmppConnectionService.updateConversationUi();
+				}
+			}
+		}
+	}
+
+	private void parseEvent(Element event, String from, Account account) {
+		Element items = event.findChild("items");
+		String node = items.getAttribute("node");
+		if (node != null) {
+			if (node.equals("urn:xmpp:avatar:metadata")) {
+				Avatar avatar = Avatar.parseMetadata(items);
+				if (avatar != null) {
+					avatar.owner = from;
+					if (mXmppConnectionService.getFileBackend().isAvatarCached(
+							avatar)) {
+						if (account.getJid().equals(from)) {
+							if (account.setAvatar(avatar.getFilename())) {
+								mXmppConnectionService.databaseBackend
+										.updateAccount(account);
+							}
+							mXmppConnectionService.getAvatarService().clear(
+									account);
+							mXmppConnectionService.updateConversationUi();
+							mXmppConnectionService.updateAccountUi();
+						} else {
+							Contact contact = account.getRoster().getContact(
+									from);
+							contact.setAvatar(avatar.getFilename());
+							mXmppConnectionService.getAvatarService().clear(
+									contact);
+							mXmppConnectionService.updateConversationUi();
+							mXmppConnectionService.updateRosterUi();
+						}
+					} else {
+						mXmppConnectionService.fetchAvatar(account, avatar);
+					}
+				}
+			} else if (node.equals("http://jabber.org/protocol/nick")) {
+				Element item = items.findChild("item");
+				if (item != null) {
+					Element nick = item.findChild("nick",
+							"http://jabber.org/protocol/nick");
+					if (nick != null) {
+						if (from != null) {
+							Contact contact = account.getRoster().getContact(
+									from);
+							contact.setPresenceName(nick.getContent());
+						}
+					}
+				}
+			}
+		}
+	}
+
+	private String getPgpBody(Element message) {
+		Element child = message.findChild("x", "jabber:x:encrypted");
+		if (child == null) {
+			return null;
+		} else {
+			return child.getContent();
+		}
+	}
+
+	private boolean isMarkable(Element message) {
+		return message.hasChild("markable", "urn:xmpp:chat-markers:0");
+	}
+
+	@Override
+	public void onMessagePacketReceived(Account account, MessagePacket packet) {
+		Message message = null;
+		boolean notify = mXmppConnectionService.getPreferences().getBoolean(
+				"show_notification", true);
+		boolean alwaysNotifyInConference = notify
+				&& mXmppConnectionService.getPreferences().getBoolean(
+						"always_notify_in_conference", false);
+
+		this.parseNick(packet, account);
+
+		if ((packet.getType() == MessagePacket.TYPE_CHAT || packet.getType() == MessagePacket.TYPE_NORMAL)) {
+			if ((packet.getBody() != null)
+					&& (packet.getBody().startsWith("?OTR"))) {
+				message = this.parseOtrChat(packet, account);
+				if (message != null) {
+					message.markUnread();
+				}
+			} else if (packet.hasChild("body")
+					&& !(packet.hasChild("x",
+							"http://jabber.org/protocol/muc#user"))) {
+				message = this.parseChat(packet, account);
+				if (message != null) {
+					message.markUnread();
+				}
+			} else if (packet.hasChild("received", "urn:xmpp:carbons:2")
+					|| (packet.hasChild("sent", "urn:xmpp:carbons:2"))) {
+				message = this.parseCarbonMessage(packet, account);
+				if (message != null) {
+					if (message.getStatus() == Message.STATUS_SEND) {
+						account.activateGracePeriod();
+						notify = false;
+						mXmppConnectionService.markRead(
+								message.getConversation(), false);
+					} else {
+						message.markUnread();
+					}
+				}
+			} else {
+				parseNonMessage(packet, account);
+			}
+		} else if (packet.getType() == MessagePacket.TYPE_GROUPCHAT) {
+			message = this.parseGroupchat(packet, account);
+			if (message != null) {
+				if (message.getStatus() == Message.STATUS_RECEIVED) {
+					message.markUnread();
+					notify = alwaysNotifyInConference
+							|| NotificationService
+									.wasHighlightedOrPrivate(message);
+				} else {
+					mXmppConnectionService.markRead(message.getConversation(),
+							false);
+					account.activateGracePeriod();
+					notify = false;
+				}
+			}
+		} else if (packet.getType() == MessagePacket.TYPE_ERROR) {
+			this.parseError(packet, account);
+			return;
+		} else if (packet.getType() == MessagePacket.TYPE_HEADLINE) {
+			this.parseHeadline(packet, account);
+			return;
+		}
+		if ((message == null) || (message.getBody() == null)) {
+			return;
+		}
+		if ((mXmppConnectionService.confirmMessages())
+				&& ((packet.getId() != null))) {
+			if (packet.hasChild("markable", "urn:xmpp:chat-markers:0")) {
+				MessagePacket receipt = mXmppConnectionService
+						.getMessageGenerator().received(account, packet,
+								"urn:xmpp:chat-markers:0");
+				mXmppConnectionService.sendMessagePacket(account, receipt);
+			}
+			if (packet.hasChild("request", "urn:xmpp:receipts")) {
+				MessagePacket receipt = mXmppConnectionService
+						.getMessageGenerator().received(account, packet,
+								"urn:xmpp:receipts");
+				mXmppConnectionService.sendMessagePacket(account, receipt);
+			}
+		}
+		Conversation conversation = message.getConversation();
+		conversation.add(message);
+
+		if (message.getStatus() == Message.STATUS_RECEIVED
+				&& conversation.getOtrSession() != null
+				&& !conversation.getOtrSession().getSessionID().getUserID()
+						.equals(message.getPresence())) {
+			conversation.endOtrIfNeeded();
+		}
+
+		if (packet.getType() != MessagePacket.TYPE_ERROR) {
+			if (message.getEncryption() == Message.ENCRYPTION_NONE
+					|| mXmppConnectionService.saveEncryptedMessages()) {
+				mXmppConnectionService.databaseBackend.createMessage(message);
+			}
+		}
+		if (message.trusted() && message.bodyContainsDownloadable()) {
+			this.mXmppConnectionService.getHttpConnectionManager()
+					.createNewConnection(message);
+			notify = false;
+		}
+		notify = notify && !conversation.isMuted();
+		if (notify) {
+			mXmppConnectionService.getNotificationService().push(message);
+		}
+		mXmppConnectionService.updateConversationUi();
+	}
+
+	private void parseHeadline(MessagePacket packet, Account account) {
+		if (packet.hasChild("event", "http://jabber.org/protocol/pubsub#event")) {
+			Element event = packet.findChild("event",
+					"http://jabber.org/protocol/pubsub#event");
+			parseEvent(event, packet.getFrom(), account);
+		}
+	}
+
+	private void parseNick(MessagePacket packet, Account account) {
+		Element nick = packet.findChild("nick",
+				"http://jabber.org/protocol/nick");
+		if (nick != null) {
+			if (packet.getFrom() != null) {
+				Contact contact = account.getRoster().getContact(
+						packet.getFrom());
+				contact.setPresenceName(nick.getContent());
+			}
+		}
+	}
+}