package eu.siacs.conversations.entities; import android.content.ContentValues; import android.database.Cursor; import android.os.SystemClock; import net.java.otr4j.OtrException; import net.java.otr4j.crypto.OtrCryptoEngineImpl; import net.java.otr4j.crypto.OtrCryptoException; import net.java.otr4j.session.SessionID; import net.java.otr4j.session.SessionImpl; import net.java.otr4j.session.SessionStatus; import org.json.JSONException; import org.json.JSONObject; import java.security.interfaces.DSAPublicKey; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.List; import eu.siacs.conversations.Config; import eu.siacs.conversations.xmpp.jid.InvalidJidException; import eu.siacs.conversations.xmpp.jid.Jid; public class Conversation extends AbstractEntity implements Blockable { public static final String TABLENAME = "conversations"; public static final int STATUS_AVAILABLE = 0; public static final int STATUS_ARCHIVED = 1; public static final int STATUS_DELETED = 2; public static final int MODE_MULTI = 1; public static final int MODE_SINGLE = 0; public static final String NAME = "name"; public static final String ACCOUNT = "accountUuid"; public static final String CONTACT = "contactUuid"; public static final String CONTACTJID = "contactJid"; public static final String STATUS = "status"; public static final String CREATED = "created"; public static final String MODE = "mode"; public static final String ATTRIBUTES = "attributes"; public static final String ATTRIBUTE_NEXT_ENCRYPTION = "next_encryption"; public static final String ATTRIBUTE_MUC_PASSWORD = "muc_password"; public static final String ATTRIBUTE_MUTED_TILL = "muted_till"; public static final String ATTRIBUTE_LAST_MESSAGE_TRANSMITTED = "last_message_transmitted"; private String name; private String contactUuid; private String accountUuid; private Jid contactJid; private int status; private long created; private int mode; private JSONObject attributes = new JSONObject(); private Jid nextCounterpart; protected final ArrayList messages = new ArrayList<>(); protected Account account = null; private transient SessionImpl otrSession; private transient String otrFingerprint = null; private Smp mSmp = new Smp(); private String nextMessage; private transient MucOptions mucOptions = null; private byte[] symmetricKey; private Bookmark bookmark; private boolean messagesLeftOnServer = true; public boolean hasMessagesLeftOnServer() { return messagesLeftOnServer; } public void setHasMessagesLeftOnServer(boolean value) { this.messagesLeftOnServer = value; } public Message findUnsentMessageWithUuid(String uuid) { synchronized(this.messages) { for (final Message message : this.messages) { final int s = message.getStatus(); if ((s == Message.STATUS_UNSEND || s == Message.STATUS_WAITING) && message.getUuid().equals(uuid)) { return message; } } } return null; } public void findWaitingMessages(OnMessageFound onMessageFound) { synchronized (this.messages) { for(Message message : this.messages) { if (message.getStatus() == Message.STATUS_WAITING) { onMessageFound.onMessageFound(message); } } } } public void findMessagesWithFiles(final OnMessageFound onMessageFound) { synchronized (this.messages) { for (final Message message : this.messages) { if ((message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) && message.getEncryption() != Message.ENCRYPTION_PGP) { onMessageFound.onMessageFound(message); } } } } public Message findMessageWithFileAndUuid(final String uuid) { synchronized (this.messages) { for (final Message message : this.messages) { if ((message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_FILE) && message.getEncryption() != Message.ENCRYPTION_PGP && message.getUuid().equals(uuid)) { return message; } } } return null; } public void clearMessages() { synchronized (this.messages) { this.messages.clear(); } } public void trim() { synchronized (this.messages) { final int size = messages.size(); final int maxsize = Config.PAGE_SIZE * Config.MAX_NUM_PAGES; if (size > maxsize) { this.messages.subList(0, size - maxsize).clear(); } } } public void findUnsentMessagesWithOtrEncryption(OnMessageFound onMessageFound) { synchronized (this.messages) { for (Message message : this.messages) { if ((message.getStatus() == Message.STATUS_UNSEND || message.getStatus() == Message.STATUS_WAITING) && (message.getEncryption() == Message.ENCRYPTION_OTR)) { onMessageFound.onMessageFound(message); } } } } public void findUnsentTextMessages(OnMessageFound onMessageFound) { synchronized (this.messages) { for (Message message : this.messages) { if (message.getType() != Message.TYPE_IMAGE && message.getStatus() == Message.STATUS_UNSEND) { onMessageFound.onMessageFound(message); } } } } public Message findSentMessageWithUuid(String uuid) { synchronized (this.messages) { for (Message message : this.messages) { if (uuid.equals(message.getUuid()) || (message.getStatus() >= Message.STATUS_SEND && uuid .equals(message.getRemoteMsgId()))) { return message; } } } return null; } public void populateWithMessages(final List messages) { synchronized (this.messages) { messages.clear(); messages.addAll(this.messages); } } @Override public boolean isBlocked() { return getContact().isBlocked(); } @Override public boolean isDomainBlocked() { return getContact().isDomainBlocked(); } @Override public Jid getBlockedJid() { return getContact().getBlockedJid(); } public interface OnMessageFound { public void onMessageFound(final Message message); } public Conversation(final String name, final Account account, final Jid contactJid, final int mode) { this(java.util.UUID.randomUUID().toString(), name, null, account .getUuid(), contactJid, System.currentTimeMillis(), STATUS_AVAILABLE, mode, ""); this.account = account; } public Conversation(final String uuid, final String name, final String contactUuid, final String accountUuid, final Jid contactJid, final long created, final int status, final int mode, final String attributes) { this.uuid = uuid; this.name = name; this.contactUuid = contactUuid; this.accountUuid = accountUuid; this.contactJid = contactJid; this.created = created; this.status = status; this.mode = mode; try { this.attributes = new JSONObject(attributes == null ? "" : attributes); } catch (JSONException e) { this.attributes = new JSONObject(); } } public boolean isRead() { return (this.messages.size() == 0) || this.messages.get(this.messages.size() - 1).isRead(); } public void markRead() { for (int i = this.messages.size() - 1; i >= 0; --i) { if (messages.get(i).isRead()) { break; } this.messages.get(i).markRead(); } } public Message getLatestMarkableMessage() { for (int i = this.messages.size() - 1; i >= 0; --i) { if (this.messages.get(i).getStatus() <= Message.STATUS_RECEIVED && this.messages.get(i).markable) { if (this.messages.get(i).isRead()) { return null; } else { return this.messages.get(i); } } } return null; } public Message getLatestMessage() { if (this.messages.size() == 0) { Message message = new Message(this, "", Message.ENCRYPTION_NONE); message.setTime(getCreated()); return message; } else { Message message = this.messages.get(this.messages.size() - 1); message.setConversation(this); return message; } } public String getName() { if (getMode() == MODE_MULTI) { if (getMucOptions().getSubject() != null) { return getMucOptions().getSubject(); } else if (bookmark != null && bookmark.getName() != null) { return bookmark.getName(); } else { String generatedName = getMucOptions().createNameFromParticipants(); if (generatedName != null) { return generatedName; } else { return getJid().getLocalpart(); } } } else { return this.getContact().getDisplayName(); } } public String getAccountUuid() { return this.accountUuid; } public Account getAccount() { return this.account; } public Contact getContact() { return this.account.getRoster().getContact(this.contactJid); } public void setAccount(final Account account) { this.account = account; } @Override public Jid getJid() { return this.contactJid; } public int getStatus() { return this.status; } public long getCreated() { return this.created; } public ContentValues getContentValues() { ContentValues values = new ContentValues(); values.put(UUID, uuid); values.put(NAME, name); values.put(CONTACT, contactUuid); values.put(ACCOUNT, accountUuid); values.put(CONTACTJID, contactJid.toString()); values.put(CREATED, created); values.put(STATUS, status); values.put(MODE, mode); values.put(ATTRIBUTES, attributes.toString()); return values; } public static Conversation fromCursor(Cursor cursor) { Jid jid; try { jid = Jid.fromString(cursor.getString(cursor.getColumnIndex(CONTACTJID))); } catch (final InvalidJidException e) { // Borked DB.. jid = null; } return new Conversation(cursor.getString(cursor.getColumnIndex(UUID)), cursor.getString(cursor.getColumnIndex(NAME)), cursor.getString(cursor.getColumnIndex(CONTACT)), cursor.getString(cursor.getColumnIndex(ACCOUNT)), jid, cursor.getLong(cursor.getColumnIndex(CREATED)), cursor.getInt(cursor.getColumnIndex(STATUS)), cursor.getInt(cursor.getColumnIndex(MODE)), cursor.getString(cursor.getColumnIndex(ATTRIBUTES))); } public void setStatus(int status) { this.status = status; } public int getMode() { return this.mode; } public void setMode(int mode) { this.mode = mode; } public SessionImpl startOtrSession(String presence, boolean sendStart) { if (this.otrSession != null) { return this.otrSession; } else { final SessionID sessionId = new SessionID(this.getJid().toBareJid().toString(), presence, "xmpp"); this.otrSession = new SessionImpl(sessionId, getAccount().getOtrEngine()); try { if (sendStart) { this.otrSession.startSession(); return this.otrSession; } return this.otrSession; } catch (OtrException e) { return null; } } } public SessionImpl getOtrSession() { return this.otrSession; } public void resetOtrSession() { this.otrFingerprint = null; this.otrSession = null; this.mSmp.hint = null; this.mSmp.secret = null; this.mSmp.status = Smp.STATUS_NONE; } public Smp smp() { return mSmp; } public void startOtrIfNeeded() { if (this.otrSession != null && this.otrSession.getSessionStatus() != SessionStatus.ENCRYPTED) { try { this.otrSession.startSession(); } catch (OtrException e) { this.resetOtrSession(); } } } public boolean endOtrIfNeeded() { if (this.otrSession != null) { if (this.otrSession.getSessionStatus() == SessionStatus.ENCRYPTED) { try { this.otrSession.endSession(); this.resetOtrSession(); return true; } catch (OtrException e) { this.resetOtrSession(); return false; } } else { this.resetOtrSession(); return false; } } else { return false; } } public boolean hasValidOtrSession() { return this.otrSession != null; } public synchronized String getOtrFingerprint() { if (this.otrFingerprint == null) { try { if (getOtrSession() == null || getOtrSession().getSessionStatus() != SessionStatus.ENCRYPTED) { return null; } DSAPublicKey remotePubKey = (DSAPublicKey) getOtrSession().getRemotePublicKey(); this.otrFingerprint = getAccount().getOtrEngine().getFingerprint(remotePubKey); } catch (final OtrCryptoException | UnsupportedOperationException ignored) { return null; } } return this.otrFingerprint; } public boolean verifyOtrFingerprint() { final String fingerprint = getOtrFingerprint(); if (fingerprint != null) { getContact().addOtrFingerprint(fingerprint); return true; } else { return false; } } public boolean isOtrFingerprintVerified() { return getContact().getOtrFingerprints().contains(getOtrFingerprint()); } public synchronized MucOptions getMucOptions() { if (this.mucOptions == null) { this.mucOptions = new MucOptions(this); } return this.mucOptions; } public void resetMucOptions() { this.mucOptions = null; } public void setContactJid(final Jid jid) { this.contactJid = jid; } public void setNextCounterpart(Jid jid) { this.nextCounterpart = jid; } public Jid getNextCounterpart() { return this.nextCounterpart; } public int getLatestEncryption() { int latestEncryption = this.getLatestMessage().getEncryption(); if ((latestEncryption == Message.ENCRYPTION_DECRYPTED) || (latestEncryption == Message.ENCRYPTION_DECRYPTION_FAILED)) { return Message.ENCRYPTION_PGP; } else { return latestEncryption; } } public int getNextEncryption(boolean force) { int next = this.getIntAttribute(ATTRIBUTE_NEXT_ENCRYPTION, -1); if (next == -1) { int latest = this.getLatestEncryption(); if (latest == Message.ENCRYPTION_NONE) { if (force && getMode() == MODE_SINGLE) { return Message.ENCRYPTION_OTR; } else if (getContact().getPresences().size() == 1) { if (getContact().getOtrFingerprints().size() >= 1) { return Message.ENCRYPTION_OTR; } else { return latest; } } else { return latest; } } else { return latest; } } if (next == Message.ENCRYPTION_NONE && force && getMode() == MODE_SINGLE) { return Message.ENCRYPTION_OTR; } else { return next; } } public void setNextEncryption(int encryption) { this.setAttribute(ATTRIBUTE_NEXT_ENCRYPTION, String.valueOf(encryption)); } public String getNextMessage() { if (this.nextMessage == null) { return ""; } else { return this.nextMessage; } } public boolean smpRequested() { return smp().status == Smp.STATUS_CONTACT_REQUESTED; } public void setNextMessage(String message) { this.nextMessage = message; } public void setSymmetricKey(byte[] key) { this.symmetricKey = key; } public byte[] getSymmetricKey() { return this.symmetricKey; } public void setBookmark(Bookmark bookmark) { this.bookmark = bookmark; this.bookmark.setConversation(this); } public void deregisterWithBookmark() { if (this.bookmark != null) { this.bookmark.setConversation(null); } } public Bookmark getBookmark() { return this.bookmark; } public boolean hasDuplicateMessage(Message message) { synchronized (this.messages) { for (int i = this.messages.size() - 1; i >= 0; --i) { if (this.messages.get(i).equals(message)) { return true; } } } return false; } public Message findSentMessageWithBody(String body) { synchronized (this.messages) { for (int i = this.messages.size() - 1; i >= 0; --i) { Message message = this.messages.get(i); if ((message.getStatus() == Message.STATUS_UNSEND || message.getStatus() == Message.STATUS_SEND) && message.getBody() != null && message.getBody().equals(body)) { return message; } } return null; } } public boolean setLastMessageTransmitted(long value) { long before = getLastMessageTransmitted(); if (value - before > 1000) { this.setAttribute(ATTRIBUTE_LAST_MESSAGE_TRANSMITTED, String.valueOf(value)); return true; } else { return false; } } public long getLastMessageTransmitted() { long timestamp = getLongAttribute(ATTRIBUTE_LAST_MESSAGE_TRANSMITTED,0); if (timestamp == 0) { synchronized (this.messages) { for(int i = this.messages.size() - 1; i >= 0; --i) { Message message = this.messages.get(i); if (message.getStatus() == Message.STATUS_RECEIVED) { return message.getTimeSent(); } } } } return timestamp; } public void setMutedTill(long value) { this.setAttribute(ATTRIBUTE_MUTED_TILL, String.valueOf(value)); } public boolean isMuted() { return SystemClock.elapsedRealtime() < this.getLongAttribute( ATTRIBUTE_MUTED_TILL, 0); } public boolean setAttribute(String key, String value) { try { this.attributes.put(key, value); return true; } catch (JSONException e) { return false; } } public String getAttribute(String key) { try { return this.attributes.getString(key); } catch (JSONException e) { return null; } } public int getIntAttribute(String key, int defaultValue) { String value = this.getAttribute(key); if (value == null) { return defaultValue; } else { try { return Integer.parseInt(value); } catch (NumberFormatException e) { return defaultValue; } } } public long getLongAttribute(String key, long defaultValue) { String value = this.getAttribute(key); if (value == null) { return defaultValue; } else { try { return Long.parseLong(value); } catch (NumberFormatException e) { return defaultValue; } } } public void add(Message message) { message.setConversation(this); synchronized (this.messages) { this.messages.add(message); } } public void addAll(int index, List messages) { synchronized (this.messages) { this.messages.addAll(index, messages); } } public void sort() { synchronized (this.messages) { Collections.sort(this.messages, new Comparator() { @Override public int compare(Message left, Message right) { if (left.getTimeSent() < right.getTimeSent()) { return -1; } else if (left.getTimeSent() > right.getTimeSent()) { return 1; } else { return 0; } } }); for(Message message : this.messages) { message.untie(); } } } public class Smp { public static final int STATUS_NONE = 0; public static final int STATUS_CONTACT_REQUESTED = 1; public static final int STATUS_WE_REQUESTED = 2; public static final int STATUS_FAILED = 3; public static final int STATUS_VERIFIED = 4; public String secret = null; public String hint = null; public int status = 0; } }