Examples with TLV net.java.otr4j.session.TLV used on opensource projects

Example 1 with TLV

use of net.java.otr4j.session.TLV in project Zom-Android by zom.

the class OtrChatManager method abortSmp.

public void abortSmp(SessionID sessionID) throws OtrException {
    OtrSm otrSm = mOtrSms.get(sessionID.toString());
    if (otrSm == null)
        return;
    List<TLV> tlvs = otrSm.abortSmp();
    String encrypted = mOtrEngine.transformSending(sessionID, "", tlvs);
    mOtrEngineHost.injectMessage(sessionID, encrypted);
}

Example 2 with TLV

use of net.java.otr4j.session.TLV in project Zom-Android by zom.

the class OtrChatManager method transformPushWhitelistTokenSending.

/**
 * Create a message body describing the ChatSecure-Push Whitelist Token Exchange.
 * See <a href="https://github.com/ChatSecure/ChatSecure-Push-Server/wiki/Chat-Client-Implementation-Notes#json-whitelist-token-exchange">JSON Whitelist Token Exchange</a>
 *
 * @param message         A {@link Message} providing the 'to' & 'from' addresses, as well as
 *                        any message body text (this is currently unused by the ChatSecure-Push
 *                        spec).
 * @param whitelistTokens An Array of one or more ChatSecure-Push Whitelist tokens
 */
public boolean transformPushWhitelistTokenSending(@NonNull Message message, @NonNull String[] whitelistTokens) {
    String localUserId = message.getFrom().getAddress();
    String remoteUserId = message.getTo().getAddress();
    String body = message.getBody();
    SessionID sessionId = getSessionId(localUserId, remoteUserId);
    try {
        List<TLV> tlvs = new ArrayList<>(1);
        if (mOtrEngine != null && sessionId != null) {
            SessionStatus sessionStatus = mOtrEngine.getSessionStatus(sessionId);
            if (sessionStatus != SessionStatus.ENCRYPTED) {
                // Cannot send Whitelist token without OTR.
                // TODO: Is it possible to Postpone-send a TLV message?
                OtrDebugLogger.log("Could not send ChatSecure-Push Whitelist Token TLV. Session not encrypted.");
                return false;
            }
            OtrDebugLogger.log("session status: " + sessionStatus);
            body = mOtrEngine.transformSending(sessionId, body, tlvs);
            message.setTo(mOtrEngineHost.appendSessionResource(sessionId, message.getTo()));
        }
        message.setBody(body);
        return true;
    } catch (Exception e) {
        OtrDebugLogger.log("error encrypting", e);
        return false;
    }
}

Example 3 with TLV

use of net.java.otr4j.session.TLV in project Zom-Android by zom.

the class OtrChatManager method respondSmp.

public void respondSmp(SessionID sessionID, String secret) throws OtrException {
    OtrSm otrSm = mOtrSms.get(sessionID.toString());
    List<TLV> tlvs;
    if (otrSm == null) {
        showError(sessionID, "Could not respond to verification because conversation is not encrypted");
        return;
    }
    tlvs = otrSm.initRespondSmp(null, secret, false);
    String encrypted = mOtrEngine.transformSending(sessionID, "", tlvs);
    mOtrEngineHost.injectMessage(sessionID, encrypted);
}

Example 4 with TLV

use of net.java.otr4j.session.TLV in project Zom-Android by zom.

the class OtrChatManager method decryptMessage.

public String decryptMessage(String localUserId, String remoteUserId, String msg, List<TLV> tlvs) throws OtrException {
    String plain = null;
    SessionID sessionId = getSessionId(localUserId, remoteUserId);
    if (mOtrEngine != null && sessionId != null) {
        mOtrEngineHost.putSessionResource(sessionId, processResource(remoteUserId));
        plain = mOtrEngine.transformReceiving(sessionId, msg, tlvs);
        OtrSm otrSm = mOtrSms.get(sessionId.toString());
        if (otrSm != null) {
            List<TLV> smTlvs = otrSm.getPendingTlvs();
            if (smTlvs != null) {
                String encrypted = mOtrEngine.transformSending(sessionId, "", smTlvs);
                mOtrEngineHost.injectMessage(sessionId, encrypted);
            }
        }
        // not null, but empty so make it null!
        if (TextUtils.isEmpty(plain))
            return null;
    }
    return plain;
}

Example 5 with TLV

use of net.java.otr4j.session.TLV in project Zom-Android by zom.

the class OtrEngineImpl method transformSending.

public String transformSending(SessionID sessionID, String msgText, boolean isResponse, byte[] data) throws OtrException {
    List<TLV> tlvs = null;
    if (data != null) {
        tlvs = new ArrayList<TLV>(1);
        tlvs.add(new TLV(isResponse ? TLV_DATA_RESPONSE : TLV_DATA_REQUEST, data));
    }
    return this.getSession(sessionID).transformSending(msgText, tlvs);
}