aboutsummaryrefslogtreecommitdiffstats
path: root/src/main/java/eu/siacs/conversations/entities/Message.java
diff options
context:
space:
mode:
authorChristian Schneppe <christian@pix-art.de>2016-07-29 19:52:37 +0200
committerChristian Schneppe <christian@pix-art.de>2016-07-29 19:52:37 +0200
commit94933e21cd08c53a23e5ec6c12bc1dc383b1f3ce (patch)
tree4fa096547d0917f603252c9a279e4208ba4ef711 /src/main/java/eu/siacs/conversations/entities/Message.java
parent50889004f3c679387d95ba9c49a53a8f882ba33c (diff)
changed package id inside manifest and project
Diffstat (limited to 'src/main/java/eu/siacs/conversations/entities/Message.java')
-rw-r--r--src/main/java/eu/siacs/conversations/entities/Message.java831
1 files changed, 0 insertions, 831 deletions
diff --git a/src/main/java/eu/siacs/conversations/entities/Message.java b/src/main/java/eu/siacs/conversations/entities/Message.java
deleted file mode 100644
index 357af7643..000000000
--- a/src/main/java/eu/siacs/conversations/entities/Message.java
+++ /dev/null
@@ -1,831 +0,0 @@
-package eu.siacs.conversations.entities;
-
-import android.content.ContentValues;
-import android.database.Cursor;
-
-import java.net.MalformedURLException;
-import java.net.URL;
-
-import eu.siacs.conversations.Config;
-import eu.siacs.conversations.crypto.axolotl.XmppAxolotlSession;
-import eu.siacs.conversations.utils.GeoHelper;
-import eu.siacs.conversations.utils.MimeUtils;
-import eu.siacs.conversations.utils.UIHelper;
-import eu.siacs.conversations.xmpp.jid.InvalidJidException;
-import eu.siacs.conversations.xmpp.jid.Jid;
-
-public class Message extends AbstractEntity {
-
- public static final String TABLENAME = "messages";
-
- public static final String MERGE_SEPARATOR = "\n\u200B\n";
-
- public static final int STATUS_RECEIVED = 0;
- public static final int STATUS_UNSEND = 1;
- public static final int STATUS_SEND = 2;
- public static final int STATUS_SEND_FAILED = 3;
- public static final int STATUS_WAITING = 5;
- public static final int STATUS_OFFERED = 6;
- public static final int STATUS_SEND_RECEIVED = 7;
- public static final int STATUS_SEND_DISPLAYED = 8;
-
- public static final int ENCRYPTION_NONE = 0;
- public static final int ENCRYPTION_PGP = 1;
- public static final int ENCRYPTION_OTR = 2;
- public static final int ENCRYPTION_DECRYPTED = 3;
- public static final int ENCRYPTION_DECRYPTION_FAILED = 4;
- public static final int ENCRYPTION_AXOLOTL = 5;
-
- public static final int TYPE_TEXT = 0;
- public static final int TYPE_IMAGE = 1;
- public static final int TYPE_FILE = 2;
- public static final int TYPE_STATUS = 3;
- public static final int TYPE_PRIVATE = 4;
-
- public static final String CONVERSATION = "conversationUuid";
- public static final String COUNTERPART = "counterpart";
- public static final String TRUE_COUNTERPART = "trueCounterpart";
- public static final String BODY = "body";
- public static final String TIME_SENT = "timeSent";
- public static final String ENCRYPTION = "encryption";
- public static final String STATUS = "status";
- public static final String TYPE = "type";
- public static final String CARBON = "carbon";
- public static final String OOB = "oob";
- public static final String EDITED = "edited";
- public static final String REMOTE_MSG_ID = "remoteMsgId";
- public static final String SERVER_MSG_ID = "serverMsgId";
- public static final String RELATIVE_FILE_PATH = "relativeFilePath";
- public static final String FINGERPRINT = "axolotl_fingerprint";
- public static final String READ = "read";
- public static final String ME_COMMAND = "/me ";
-
-
- public boolean markable = false;
- protected String conversationUuid;
- protected Jid counterpart;
- protected Jid trueCounterpart;
- protected String body;
- protected String encryptedBody;
- protected long timeSent;
- protected int encryption;
- protected int status;
- protected int type;
- protected boolean carbon = false;
- protected boolean oob = false;
- protected String edited = null;
- protected String relativeFilePath;
- protected boolean read = true;
- protected String remoteMsgId = null;
- protected String serverMsgId = null;
- protected Conversation conversation = null;
- protected Transferable transferable = null;
- private Message mNextMessage = null;
- private Message mPreviousMessage = null;
- private String axolotlFingerprint = null;
-
- private Message() {
-
- }
-
- public Message(Conversation conversation, String body, int encryption) {
- this(conversation, body, encryption, STATUS_UNSEND);
- }
-
- public Message(Conversation conversation, String body, int encryption, int status) {
- this(java.util.UUID.randomUUID().toString(),
- conversation.getUuid(),
- conversation.getJid() == null ? null : conversation.getJid().toBareJid(),
- null,
- body,
- System.currentTimeMillis(),
- encryption,
- status,
- TYPE_TEXT,
- false,
- null,
- null,
- null,
- null,
- true,
- null,
- false);
- this.conversation = conversation;
- }
-
- private Message(final String uuid, final String conversationUUid, final Jid counterpart,
- final Jid trueCounterpart, final String body, final long timeSent,
- final int encryption, final int status, final int type, final boolean carbon,
- final String remoteMsgId, final String relativeFilePath,
- final String serverMsgId, final String fingerprint, final boolean read,
- final String edited, final boolean oob) {
- this.uuid = uuid;
- this.conversationUuid = conversationUUid;
- this.counterpart = counterpart;
- this.trueCounterpart = trueCounterpart;
- this.body = body;
- this.timeSent = timeSent;
- this.encryption = encryption;
- this.status = status;
- this.type = type;
- this.carbon = carbon;
- this.remoteMsgId = remoteMsgId;
- this.relativeFilePath = relativeFilePath;
- this.serverMsgId = serverMsgId;
- this.axolotlFingerprint = fingerprint;
- this.read = read;
- this.edited = edited;
- this.oob = oob;
- }
-
- public static Message fromCursor(Cursor cursor) {
- Jid jid;
- try {
- String value = cursor.getString(cursor.getColumnIndex(COUNTERPART));
- if (value != null) {
- jid = Jid.fromString(value, true);
- } else {
- jid = null;
- }
- } catch (InvalidJidException e) {
- jid = null;
- }
- Jid trueCounterpart;
- try {
- String value = cursor.getString(cursor.getColumnIndex(TRUE_COUNTERPART));
- if (value != null) {
- trueCounterpart = Jid.fromString(value, true);
- } else {
- trueCounterpart = null;
- }
- } catch (InvalidJidException e) {
- trueCounterpart = null;
- }
- return new Message(cursor.getString(cursor.getColumnIndex(UUID)),
- cursor.getString(cursor.getColumnIndex(CONVERSATION)),
- jid,
- trueCounterpart,
- cursor.getString(cursor.getColumnIndex(BODY)),
- cursor.getLong(cursor.getColumnIndex(TIME_SENT)),
- cursor.getInt(cursor.getColumnIndex(ENCRYPTION)),
- cursor.getInt(cursor.getColumnIndex(STATUS)),
- cursor.getInt(cursor.getColumnIndex(TYPE)),
- cursor.getInt(cursor.getColumnIndex(CARBON)) > 0,
- cursor.getString(cursor.getColumnIndex(REMOTE_MSG_ID)),
- cursor.getString(cursor.getColumnIndex(RELATIVE_FILE_PATH)),
- cursor.getString(cursor.getColumnIndex(SERVER_MSG_ID)),
- cursor.getString(cursor.getColumnIndex(FINGERPRINT)),
- cursor.getInt(cursor.getColumnIndex(READ)) > 0,
- cursor.getString(cursor.getColumnIndex(EDITED)),
- cursor.getInt(cursor.getColumnIndex(OOB)) > 0);
- }
-
- public static Message createStatusMessage(Conversation conversation, String body) {
- final Message message = new Message();
- message.setType(Message.TYPE_STATUS);
- message.setConversation(conversation);
- message.setBody(body);
- return message;
- }
-
- public static Message createLoadMoreMessage(Conversation conversation) {
- final Message message = new Message();
- message.setType(Message.TYPE_STATUS);
- message.setConversation(conversation);
- message.setBody("LOAD_MORE");
- return message;
- }
-
- @Override
- public ContentValues getContentValues() {
- ContentValues values = new ContentValues();
- values.put(UUID, uuid);
- values.put(CONVERSATION, conversationUuid);
- if (counterpart == null) {
- values.putNull(COUNTERPART);
- } else {
- values.put(COUNTERPART, counterpart.toString());
- }
- if (trueCounterpart == null) {
- values.putNull(TRUE_COUNTERPART);
- } else {
- values.put(TRUE_COUNTERPART, trueCounterpart.toString());
- }
- values.put(BODY, body);
- values.put(TIME_SENT, timeSent);
- values.put(ENCRYPTION, encryption);
- values.put(STATUS, status);
- values.put(TYPE, type);
- values.put(CARBON, carbon ? 1 : 0);
- values.put(REMOTE_MSG_ID, remoteMsgId);
- values.put(RELATIVE_FILE_PATH, relativeFilePath);
- values.put(SERVER_MSG_ID, serverMsgId);
- values.put(FINGERPRINT, axolotlFingerprint);
- values.put(READ,read ? 1 : 0);
- values.put(EDITED, edited);
- values.put(OOB, oob ? 1 : 0);
- return values;
- }
-
- public String getConversationUuid() {
- return conversationUuid;
- }
-
- public Conversation getConversation() {
- return this.conversation;
- }
-
- public void setConversation(Conversation conv) {
- this.conversation = conv;
- }
-
- public Jid getCounterpart() {
- return counterpart;
- }
-
- public void setCounterpart(final Jid counterpart) {
- this.counterpart = counterpart;
- }
-
- public Contact getContact() {
- if (this.conversation.getMode() == Conversation.MODE_SINGLE) {
- return this.conversation.getContact();
- } else {
- if (this.trueCounterpart == null) {
- return null;
- } else {
- return this.conversation.getAccount().getRoster()
- .getContactFromRoster(this.trueCounterpart);
- }
- }
- }
-
- public String getBody() {
- return body;
- }
-
- public void setBody(String body) {
- this.body = body;
- }
-
- public long getTimeSent() {
- return timeSent;
- }
-
- public int getEncryption() {
- return encryption;
- }
-
- public void setEncryption(int encryption) {
- this.encryption = encryption;
- }
-
- public int getStatus() {
- return status;
- }
-
- public void setStatus(int status) {
- this.status = status;
- }
-
- public String getRelativeFilePath() {
- return this.relativeFilePath;
- }
-
- public void setRelativeFilePath(String path) {
- this.relativeFilePath = path;
- }
-
- public String getRemoteMsgId() {
- return this.remoteMsgId;
- }
-
- public void setRemoteMsgId(String id) {
- this.remoteMsgId = id;
- }
-
- public String getServerMsgId() {
- return this.serverMsgId;
- }
-
- public void setServerMsgId(String id) {
- this.serverMsgId = id;
- }
-
- public boolean isRead() {
- return this.read;
- }
-
- public void markRead() {
- this.read = true;
- }
-
- public void markUnread() {
- this.read = false;
- }
-
- public void setTime(long time) {
- this.timeSent = time;
- }
-
- public String getEncryptedBody() {
- return this.encryptedBody;
- }
-
- public void setEncryptedBody(String body) {
- this.encryptedBody = body;
- }
-
- public int getType() {
- return this.type;
- }
-
- public void setType(int type) {
- this.type = type;
- }
-
- public boolean isCarbon() {
- return carbon;
- }
-
- public void setCarbon(boolean carbon) {
- this.carbon = carbon;
- }
-
- public void setEdited(String edited) {
- this.edited = edited;
- }
-
- public boolean edited() {
- return this.edited != null;
- }
-
- public void setTrueCounterpart(Jid trueCounterpart) {
- this.trueCounterpart = trueCounterpart;
- }
-
- public Jid getTrueCounterpart() {
- return this.trueCounterpart;
- }
-
- public Transferable getTransferable() {
- return this.transferable;
- }
-
- public void setTransferable(Transferable transferable) {
- this.transferable = transferable;
- }
-
- public boolean similar(Message message) {
- if (type != TYPE_PRIVATE && this.serverMsgId != null && message.getServerMsgId() != null) {
- return this.serverMsgId.equals(message.getServerMsgId());
- } else if (this.body == null || this.counterpart == null) {
- return false;
- } else {
- String body, otherBody;
- if (this.hasFileOnRemoteHost()) {
- body = getFileParams().url.toString();
- otherBody = message.body == null ? null : message.body.trim();
- } else {
- body = this.body;
- otherBody = message.body;
- }
- if (message.getRemoteMsgId() != null) {
- return (message.getRemoteMsgId().equals(this.remoteMsgId) || message.getRemoteMsgId().equals(this.uuid))
- && this.counterpart.equals(message.getCounterpart())
- && (body.equals(otherBody)
- ||(message.getEncryption() == Message.ENCRYPTION_PGP
- && message.getRemoteMsgId().matches("[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}"))) ;
- } else {
- return this.remoteMsgId == null
- && this.counterpart.equals(message.getCounterpart())
- && body.equals(otherBody)
- && Math.abs(this.getTimeSent() - message.getTimeSent()) < Config.MESSAGE_MERGE_WINDOW * 1000;
- }
- }
- }
-
- public Message next() {
- synchronized (this.conversation.messages) {
- if (this.mNextMessage == null) {
- int index = this.conversation.messages.indexOf(this);
- if (index < 0 || index >= this.conversation.messages.size() - 1) {
- this.mNextMessage = null;
- } else {
- this.mNextMessage = this.conversation.messages.get(index + 1);
- }
- }
- return this.mNextMessage;
- }
- }
-
- public Message prev() {
- synchronized (this.conversation.messages) {
- if (this.mPreviousMessage == null) {
- int index = this.conversation.messages.indexOf(this);
- if (index <= 0 || index > this.conversation.messages.size()) {
- this.mPreviousMessage = null;
- } else {
- this.mPreviousMessage = this.conversation.messages.get(index - 1);
- }
- }
- return this.mPreviousMessage;
- }
- }
-
- public boolean isLastCorrectableMessage() {
- Message next = next();
- while(next != null) {
- if (next.isCorrectable()) {
- return false;
- }
- next = next.next();
- }
- return isCorrectable();
- }
-
- private boolean isCorrectable() {
- return getStatus() != STATUS_RECEIVED && !isCarbon();
- }
-
- public boolean mergeable(final Message message) {
- return message != null &&
- (message.getType() == Message.TYPE_TEXT &&
- this.getTransferable() == null &&
- message.getTransferable() == null &&
- message.getEncryption() != Message.ENCRYPTION_PGP &&
- message.getEncryption() != Message.ENCRYPTION_DECRYPTION_FAILED &&
- this.getType() == message.getType() &&
- //this.getStatus() == message.getStatus() &&
- isStatusMergeable(this.getStatus(), message.getStatus()) &&
- this.getEncryption() == message.getEncryption() &&
- this.getCounterpart() != null &&
- this.getCounterpart().equals(message.getCounterpart()) &&
- this.edited() == message.edited() &&
- (message.getTimeSent() - this.getTimeSent()) <= (Config.MESSAGE_MERGE_WINDOW * 1000) &&
- this.getBody().length() + message.getBody().length() <= Config.MAX_DISPLAY_MESSAGE_CHARS &&
- !GeoHelper.isGeoUri(message.getBody()) &&
- !GeoHelper.isGeoUri(this.body) &&
- message.treatAsDownloadable() == Decision.NEVER &&
- this.treatAsDownloadable() == Decision.NEVER &&
- !message.getBody().startsWith(ME_COMMAND) &&
- !this.getBody().startsWith(ME_COMMAND) &&
- !this.bodyIsHeart() &&
- !message.bodyIsHeart() &&
- this.isTrusted() == message.isTrusted()
- );
- }
-
- private static boolean isStatusMergeable(int a, int b) {
- return a == b || (
- (a == Message.STATUS_SEND_RECEIVED && b == Message.STATUS_UNSEND)
- || (a == Message.STATUS_SEND_RECEIVED && b == Message.STATUS_SEND)
- || (a == Message.STATUS_UNSEND && b == Message.STATUS_SEND)
- || (a == Message.STATUS_UNSEND && b == Message.STATUS_SEND_RECEIVED)
- || (a == Message.STATUS_SEND && b == Message.STATUS_UNSEND)
- || (a == Message.STATUS_SEND && b == Message.STATUS_SEND_RECEIVED)
- );
- }
-
- public String getMergedBody() {
- StringBuilder body = new StringBuilder(this.body.trim());
- Message current = this;
- while(current.mergeable(current.next())) {
- current = current.next();
- if (current == null) {
- break;
- }
- body.append(MERGE_SEPARATOR);
- body.append(current.getBody().trim());
- }
- return body.toString();
- }
-
- public boolean hasMeCommand() {
- return getMergedBody().startsWith(ME_COMMAND);
- }
-
- public int getMergedStatus() {
- int status = this.status;
- Message current = this;
- while(current.mergeable(current.next())) {
- current = current.next();
- if (current == null) {
- break;
- }
- status = current.status;
- }
- return status;
- }
-
- public long getMergedTimeSent() {
- long time = this.timeSent;
- Message current = this;
- while(current.mergeable(current.next())) {
- current = current.next();
- if (current == null) {
- break;
- }
- time = current.timeSent;
- }
- return time;
- }
-
- public boolean wasMergedIntoPrevious() {
- Message prev = this.prev();
- return prev != null && prev.mergeable(this);
- }
-
- public boolean trusted() {
- Contact contact = this.getContact();
- return (status > STATUS_RECEIVED || (contact != null && contact.trusted()));
- }
-
- public boolean fixCounterpart() {
- Presences presences = conversation.getContact().getPresences();
- if (counterpart != null && presences.has(counterpart.getResourcepart())) {
- return true;
- } else if (presences.size() >= 1) {
- try {
- counterpart = Jid.fromParts(conversation.getJid().getLocalpart(),
- conversation.getJid().getDomainpart(),
- presences.asStringArray()[0]);
- return true;
- } catch (InvalidJidException e) {
- counterpart = null;
- return false;
- }
- } else {
- counterpart = null;
- return false;
- }
- }
-
- public void setUuid(String uuid) {
- this.uuid = uuid;
- }
-
- public String getEditedId() {
- return edited;
- }
-
- public void setOob(boolean isOob) {
- this.oob = isOob;
- }
-
- public enum Decision {
- MUST,
- SHOULD,
- NEVER,
- }
-
- private static String extractRelevantExtension(URL url) {
- String path = url.getPath();
- return extractRelevantExtension(path);
- }
-
- private static String extractRelevantExtension(String path) {
- if (path == null || path.isEmpty()) {
- return null;
- }
-
- String filename = path.substring(path.lastIndexOf('/') + 1).toLowerCase();
- int dotPosition = filename.lastIndexOf(".");
-
- if (dotPosition != -1) {
- String extension = filename.substring(dotPosition + 1);
- // we want the real file extension, not the crypto one
- if (Transferable.VALID_CRYPTO_EXTENSIONS.contains(extension)) {
- return extractRelevantExtension(filename.substring(0,dotPosition));
- } else {
- return extension;
- }
- }
- return null;
- }
-
- public String getMimeType() {
- if (relativeFilePath != null) {
- int start = relativeFilePath.lastIndexOf('.') + 1;
- if (start < relativeFilePath.length()) {
- return MimeUtils.guessMimeTypeFromExtension(relativeFilePath.substring(start));
- } else {
- return null;
- }
- } else {
- try {
- return MimeUtils.guessMimeTypeFromExtension(extractRelevantExtension(new URL(body.trim())));
- } catch (MalformedURLException e) {
- return null;
- }
- }
- }
-
- public Decision treatAsDownloadable() {
- if (body.trim().contains(" ")) {
- return Decision.NEVER;
- }
- try {
- URL url = new URL(body);
- if (!url.getProtocol().equalsIgnoreCase("http") && !url.getProtocol().equalsIgnoreCase("https")) {
- return Decision.NEVER;
- } else if (oob) {
- return Decision.MUST;
- }
- String extension = extractRelevantExtension(url);
- if (extension == null) {
- return Decision.NEVER;
- }
- String ref = url.getRef();
- boolean encrypted = ref != null && ref.matches("([A-Fa-f0-9]{2}){48}");
-
- if (encrypted) {
- return Decision.MUST;
- } else if (Transferable.VALID_IMAGE_EXTENSIONS.contains(extension)
- || Transferable.WELL_KNOWN_EXTENSIONS.contains(extension)) {
- return Decision.SHOULD;
- } else {
- return Decision.NEVER;
- }
-
- } catch (MalformedURLException e) {
- return Decision.NEVER;
- }
- }
-
- public boolean bodyIsHeart() {
- return body != null && UIHelper.HEARTS.contains(body.trim());
- }
-
- public FileParams getFileParams() {
- FileParams params = getLegacyFileParams();
- if (params != null) {
- return params;
- }
- params = new FileParams();
- if (this.transferable != null) {
- params.size = this.transferable.getFileSize();
- }
- if (body == null) {
- return params;
- }
- String parts[] = body.split("\\|");
- switch (parts.length) {
- case 1:
- try {
- params.size = Long.parseLong(parts[0]);
- } catch (NumberFormatException e) {
- try {
- params.url = new URL(parts[0]);
- } catch (MalformedURLException e1) {
- params.url = null;
- }
- }
- break;
- case 2:
- case 4:
- try {
- params.url = new URL(parts[0]);
- } catch (MalformedURLException e1) {
- params.url = null;
- }
- try {
- params.size = Long.parseLong(parts[1]);
- } catch (NumberFormatException e) {
- params.size = 0;
- }
- try {
- params.width = Integer.parseInt(parts[2]);
- } catch (NumberFormatException | ArrayIndexOutOfBoundsException e) {
- params.width = 0;
- }
- try {
- params.height = Integer.parseInt(parts[3]);
- } catch (NumberFormatException | ArrayIndexOutOfBoundsException e) {
- params.height = 0;
- }
- break;
- case 3:
- try {
- params.size = Long.parseLong(parts[0]);
- } catch (NumberFormatException e) {
- params.size = 0;
- }
- try {
- params.width = Integer.parseInt(parts[1]);
- } catch (NumberFormatException e) {
- params.width = 0;
- }
- try {
- params.height = Integer.parseInt(parts[2]);
- } catch (NumberFormatException e) {
- params.height = 0;
- }
- break;
- }
- return params;
- }
-
- public FileParams getLegacyFileParams() {
- FileParams params = new FileParams();
- if (body == null) {
- return params;
- }
- String parts[] = body.split(",");
- if (parts.length == 3) {
- try {
- params.size = Long.parseLong(parts[0]);
- } catch (NumberFormatException e) {
- return null;
- }
- try {
- params.width = Integer.parseInt(parts[1]);
- } catch (NumberFormatException e) {
- return null;
- }
- try {
- params.height = Integer.parseInt(parts[2]);
- } catch (NumberFormatException e) {
- return null;
- }
- return params;
- } else {
- return null;
- }
- }
-
- public void untie() {
- this.mNextMessage = null;
- this.mPreviousMessage = null;
- }
-
- public boolean isFileOrImage() {
- return type == TYPE_FILE || type == TYPE_IMAGE;
- }
-
- public boolean hasFileOnRemoteHost() {
- return isFileOrImage() && getFileParams().url != null;
- }
-
- public boolean needsUploading() {
- return isFileOrImage() && getFileParams().url == null;
- }
-
- public class FileParams {
- public URL url;
- public long size = 0;
- public int width = 0;
- public int height = 0;
- }
-
- public void setFingerprint(String fingerprint) {
- this.axolotlFingerprint = fingerprint;
- }
-
- public String getFingerprint() {
- return axolotlFingerprint;
- }
-
- public boolean isTrusted() {
- XmppAxolotlSession.Trust t = conversation.getAccount().getAxolotlService().getFingerprintTrust(axolotlFingerprint);
- return t != null && t.trusted();
- }
-
- private int getPreviousEncryption() {
- for (Message iterator = this.prev(); iterator != null; iterator = iterator.prev()){
- if( iterator.isCarbon() || iterator.getStatus() == STATUS_RECEIVED ) {
- continue;
- }
- return iterator.getEncryption();
- }
- return ENCRYPTION_NONE;
- }
-
- private int getNextEncryption() {
- for (Message iterator = this.next(); iterator != null; iterator = iterator.next()){
- if( iterator.isCarbon() || iterator.getStatus() == STATUS_RECEIVED ) {
- continue;
- }
- return iterator.getEncryption();
- }
- return conversation.getNextEncryption();
- }
-
- public boolean isValidInSession() {
- int pastEncryption = getCleanedEncryption(this.getPreviousEncryption());
- int futureEncryption = getCleanedEncryption(this.getNextEncryption());
-
- boolean inUnencryptedSession = pastEncryption == ENCRYPTION_NONE
- || futureEncryption == ENCRYPTION_NONE
- || pastEncryption != futureEncryption;
-
- return inUnencryptedSession || getCleanedEncryption(this.getEncryption()) == pastEncryption;
- }
-
- private static int getCleanedEncryption(int encryption) {
- if (encryption == ENCRYPTION_DECRYPTED || encryption == ENCRYPTION_DECRYPTION_FAILED) {
- return ENCRYPTION_PGP;
- }
- return encryption;
- }
-}