Examples with SEPASecurityException it.unibo.arces.wot.sepa.commons.exceptions.SEPASecurityException used on opensource projects

Example 11 with SEPASecurityException

use of it.unibo.arces.wot.sepa.commons.exceptions.SEPASecurityException in project SEPA by arces-wot.

the class LdapSecurityManager method isForTesting.

/*
	 * An identity is defined for testing if cn = TEST This entity should be used
	 * only for debugging. A testing identity is not deleted after registration:
	 * avoid in production!
	 * 
	 * uid: uid ou: authorizedIdentities cn: SEPATest
	 */
@Override
public boolean isForTesting(String uid) throws SEPASecurityException {
    logger.log(Level.getLevel("ldap"), "[LDAP] isForTesting " + uid + " uid=" + uid + ",ou=authorizedIdentities," + prop.getBase(), "(objectclass=*)");
    bind();
    try {
        cursor = ldap.search("uid=" + uid + ",ou=authorizedIdentities," + prop.getBase(), "(objectclass=*)", SearchScope.OBJECT, "*");
        if (!cursor.next())
            return false;
        return cursor.get().get("cn").getString().equals("SEPATest");
    } catch (LdapException | CursorException e) {
        logger.error("[LDAP] isAuthorized exception " + e.getMessage());
        throw new SEPASecurityException("isAuthorized exception " + e.getMessage());
    } finally {
        unbind();
    }
}

Example 12 with SEPASecurityException

use of it.unibo.arces.wot.sepa.commons.exceptions.SEPASecurityException in project SEPA by arces-wot.

the class SecurityManager method getToken.

/**
 * It requests a token to the Authorization Server. A token request should be
 * made when the current token is expired or it is the first token. If the token
 * is not expired, the "invalid_grant" error is returned.
 *
 * @param encodedCredentials the client credentials encoded using Base64
 * @return JWTResponse in case of success, ErrorResponse otherwise
 * @throws SEPASecurityException
 * @see JWTResponse
 * @see ErrorResponse
 *
 *	<pre>
 *	POST https://wot.arces.unibo.it:8443/oauth/token
 *
 *	Content-Type: application/x-www-form-urlencoded
 *	Accept: application/json
 *	Authorization: Basic Basic64(id:secret)
 *
 *	Response example:
 *	{
 *	"access_token": "eyJraWQiOiIyN.........",
 *	"token_type": "bearer",
 *	"expires_in": 3600
 *	}
 *
 *	 Error response example:
 *	 {
 *	   "error":"Unless specified otherwise see RFC6749. Otherwise, this is specific of the SPARQL 1.1 SE Protocol",
 *	   "error_description":"Unless specified otherwise, see RFC6749. Otherwise, this is specific to the SPARQL 1.1 SE Protocol", (OPTIONAL)
 *	   "status_code" : the HTTP status code (should be 400 for all Oauth 2.0 errors).
 *	 }
 *
 *	According to RFC6749, the error member can assume the following values: invalid_request, invalid_client, invalid_grant, unauthorized_client, unsupported_grant_type, invalid_scope.
 *
 *	invalid_request
 *               The request is missing a required parameter, includes an
 *               unsupported parameter value (other than grant type),
 *               repeats a parameter, includes multiple credentials,
 *               utilizes more than one mechanism for authenticating the
 *               client, or is otherwise malformed.
 *
 *         invalid_client
 *               Client authentication failed (e.g., unknown client, no
 *               client authentication included, or unsupported
 *               authentication method).  The authorization server MAY
 *               return an HTTP 401 (Unauthorized) status code to indicate
 *               which HTTP authentication schemes are supported.  If the
 *               client attempted to authenticate via the "Authorization"
 *               request header field, the authorization server MUST
 *               respond with an HTTP 401 (Unauthorized) status code and
 *               include the "WWW-Authenticate" response header field
 *               matching the authentication scheme used by the client.
 *
 *         invalid_grant
 *               The provided authorization grant (e.g., authorization
 *               code, resource owner credentials) or refresh token is
 *               invalid, expired, revoked, does not match the redirection
 *               URI used in the authorization request, or was issued to
 *               another client.
 *
 *         unauthorized_client
 *               The authenticated client is not authorized to use this
 *               authorization grant type.
 *
 *         unsupported_grant_type
 *               The authorization grant type is not supported by the
 *               authorization server.
 *		</pre>
 */
public synchronized Response getToken(String encodedCredentials) {
    logger.debug("GET TOKEN");
    // Decode credentials
    byte[] decoded = null;
    try {
        decoded = Base64.getDecoder().decode(encodedCredentials);
    } catch (IllegalArgumentException e) {
        logger.error("Not authorized");
        return new ErrorResponse(HttpStatus.SC_UNAUTHORIZED, "invalid_request", e.getMessage());
    }
    // Parse credentials
    String decodedCredentials = new String(decoded);
    // BUG SOLVED. The clientID may contain ":"
    // e.g., urn:epc:id:gid:0.1.410D23751450344850323220
    int marker = decodedCredentials.lastIndexOf(":");
    if (marker == -1) {
        logger.error("Wrong Basic authorization");
        return new ErrorResponse(HttpStatus.SC_UNAUTHORIZED, "invalid_client", "Delimiter ':' is missing. Wrong credentials format: " + decodedCredentials);
    }
    // String[] clientID = decodedCredentials.split(":");
    // if (clientID == null) {
    // logger.error("Wrong Basic authorization");
    // return new ErrorResponse(HttpStatus.SC_UNAUTHORIZED, "invalid_client",
    // "Client id not found: " + decodedCredentials);
    // }
    // if (clientID.length != 2) {
    // logger.error("Wrong Basic authorization");
    // return new ErrorResponse(HttpStatus.SC_UNAUTHORIZED, "invalid_client",
    // "Wrong credentials: " + decodedCredentials);
    // }
    // String id = decodedCredentials.split(":")[0];
    // String secret = decodedCredentials.split(":")[1];
    String id = decodedCredentials.substring(0, marker);
    String secret = decodedCredentials.substring(marker + 1);
    logger.debug("Credentials: " + id + " " + secret);
    // Verify credentials
    try {
        if (!containsCredentials(id)) {
            logger.error("Client id: " + id + " is not registered");
            return new ErrorResponse(HttpStatus.SC_BAD_REQUEST, "unauthorized_client", "Client identity " + id + " not found");
        }
    } catch (SEPASecurityException e2) {
        return new ErrorResponse(HttpStatus.SC_BAD_REQUEST, "unauthorized_client", e2.getMessage());
    }
    try {
        if (!checkCredentials(id, secret)) {
            logger.error("Wrong secret: " + secret + " for client id: " + id);
            return new ErrorResponse(HttpStatus.SC_BAD_REQUEST, "unauthorized_client", "Wrong credentials for identity " + id);
        }
    } catch (SEPASecurityException e2) {
        return new ErrorResponse(HttpStatus.SC_BAD_REQUEST, "unauthorized_client", e2.getMessage());
    }
    // Prepare JWT with claims set
    JWTClaimsSet.Builder claimsSetBuilder = new JWTClaimsSet.Builder();
    Date now = new Date();
    // Check if the token is not expired
    try {
        if (containsJwt(id)) {
            Date expiring = getTokenExpiringDate(id);
            long expiringUnixSeconds = (expiring.getTime() / 1000) * 1000;
            long nowUnixSeconds = (now.getTime() / 1000) * 1000;
            long delta = expiringUnixSeconds - nowUnixSeconds;
            // Expires if major than current time
            logger.debug("ID: " + id + " ==> Token will expire in: " + delta + " ms");
            if (delta > 0) {
                logger.warn("Token is NOT EXPIRED. Return the current token.");
                JWTResponse jwt = null;
                try {
                    jwt = new JWTResponse(getJwt(id));
                } catch (SEPASecurityException e) {
                    logger.error(e.getMessage());
                    return new ErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR, "security_error", "Failed to retrieve expiring period");
                }
                return jwt;
            }
            logger.debug("Token is EXPIRED. Release a fresh token.");
        }
    } catch (SEPASecurityException e2) {
        return new ErrorResponse(HttpStatus.SC_BAD_REQUEST, "security_error", e2.getMessage());
    }
    /*
		 * 4.1.1. "iss" (Issuer) Claim
		 * 
		 * The "iss" (issuer) claim identifies the principal that issued the JWT. The
		 * processing of this claim is generally application specific. The "iss" value
		 * is a case-sensitive string containing a StringOrURI value. Use of this claim
		 * is OPTIONAL.
		 */
    // try {
    // claimsSetBuilder.issuer(auth.getIssuer());
    // } catch (SEPASecurityException e1) {
    // return new ErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR, "invalid_issuer",
    // e1.getMessage());
    // }
    /*
		 * 4.1.2. "sub" (Subject) Claim
		 * 
		 * The "sub" (subject) claim identifies the principal that is the subject of the
		 * JWT. The Claims in a JWT are normally statements about the subject. The
		 * subject value MUST either be scoped to be locally unique in the context of
		 * the issuer or be globally unique. The processing of this claim is generally
		 * application specific. The "sub" value is a case-sensitive string containing a
		 * StringOrURI value. Use of this claim is OPTIONAL.
		 */
    claimsSetBuilder.subject(id);
    /*
		 * 4.1.3. "aud" (Audience) Claim
		 * 
		 * The "aud" (audience) claim identifies the recipients that the JWT is intended
		 * for. Each principal intended to process the JWT MUST identify itself with a
		 * value in the audience claim. If the principal processing the claim does not
		 * identify itself with a value in the "aud" claim when this claim is present,
		 * then the JWT MUST be rejected. In the general case, the "aud" value is an
		 * array of case- sensitive strings, each containing a StringOrURI value. In the
		 * special case when the JWT has one audience, the "aud" value MAY be a single
		 * case-sensitive string containing a StringOrURI value. The interpretation of
		 * audience values is generally application specific. Use of this claim is
		 * OPTIONAL.
		 */
    // ArrayList<String> audience = new ArrayList<String>();
    // try {
    // audience.add(auth.getHttpsAudience());
    // } catch (SEPASecurityException e1) {
    // return new ErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR, "invalid_https_audience",
    // e1.getMessage());
    // }
    // try {
    // audience.add(auth.getWssAudience());
    // } catch (SEPASecurityException e1) {
    // return new ErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR, "invalid_wss_audience",
    // e1.getMessage());
    // }
    // claimsSetBuilder.audience(audience);
    /*
		 * 4.1.4. "exp" (Expiration Time) Claim
		 * 
		 * The "exp" (expiration time) claim identifies the expiration time on or after
		 * which the JWT MUST NOT be accepted for processing. The processing of the
		 * "exp" claim requires that the current date/time MUST be before the expiration
		 * date/time listed in the "exp" claim. Implementers MAY provide for some small
		 * leeway, usually no more than a few minutes, to account for clock skew. Its
		 * value MUST be a number containing a NumericDate value. Use of this claim is
		 * OPTIONAL.
		 */
    /*
		 * NOTICE: this date is serialized as SECONDS from UNIX time NOT milliseconds!
		 */
    // Define the expiration time
    Date expires;
    try {
        expires = new Date(now.getTime() + (getTokenExpiringPeriod(id) * 1000));
    } catch (SEPASecurityException e1) {
        logger.error(e1.getMessage());
        return new ErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR, "security_error", "Failed to retrieve expiring period");
    }
    claimsSetBuilder.expirationTime(expires);
    /*
		 * 4.1.5. "nbf" (Not Before) Claim
		 * 
		 * The "nbf" (not before) claim identifies the time before which the JWT MUST
		 * NOT be accepted for processing. The processing of the "nbf" claim requires
		 * that the current date/time MUST be after or equal to the not-before date/time
		 * listed in the "nbf" claim. Implementers MAY provide for some small leeway,
		 * usually no more than a few minutes, to account for clock skew. Its value MUST
		 * be a number containing a NumericDate value. Use of this claim is OPTIONAL.
		 */
    // claimsSetBuilder.notBeforeTime(before);
    /*
		 * 4.1.6. "iat" (Issued At) Claim
		 * 
		 * The "iat" (issued at) claim identifies the time at which the JWT was issued.
		 * This claim can be used to determine the age of the JWT. Its value MUST be a
		 * number containing a NumericDate value. Use of this claim is OPTIONAL.
		 */
    claimsSetBuilder.issueTime(now);
    /*
		 * 4.1.7. "jti" (JWT ID) Claim
		 * 
		 * The "jti" (JWT ID) claim provides a unique identifier for the JWT. The
		 * identifier value MUST be assigned in a manner that ensures that there is a
		 * negligible probability that the same value will be accidentally assigned to a
		 * different data object; if the application uses multiple issuers, collisions
		 * MUST be prevented among values produced by different issuers as well. The
		 * "jti" claim can be used to prevent the JWT from being replayed. The "jti"
		 * value is a case- sensitive string. Use of this claim is OPTIONAL.
		 */
    // claimsSetBuilder.jwtID(id);
    JWTClaimsSet jwtClaims = claimsSetBuilder.build();
    // ******************************
    // Sign JWT with private RSA key
    // ******************************
    SignedJWT signedJWT;
    try {
        signedJWT = new SignedJWT(new JWSHeader(JWSAlgorithm.RS256), JWTClaimsSet.parse(jwtClaims.toString()));
    } catch (ParseException e) {
        logger.error(e.getMessage());
        return new ErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR, "parsing_exception", "ParseException: " + e.getMessage());
    }
    try {
        signedJWT.sign(signer);
    } catch (JOSEException e) {
        logger.error(e.getMessage());
        return new ErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR, "sign_exception", "JOSEException: " + e.getMessage());
    }
    // Add the token to the released tokens
    try {
        addJwt(id, signedJWT);
    } catch (SEPASecurityException e1) {
        logger.error(e1.getMessage());
        return new ErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR, "security_error", e1.getMessage());
    }
    JWTResponse jwt = null;
    try {
        jwt = new JWTResponse(signedJWT);
    } catch (SEPASecurityException e) {
        logger.error(e.getMessage());
        return new ErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR, "security_error", "Failed to retrieve expiring period");
    }
    logger.debug("Released token: " + jwt);
    return jwt;
}

Example 13 with SEPASecurityException

use of it.unibo.arces.wot.sepa.commons.exceptions.SEPASecurityException in project SEPA by arces-wot.

the class Gate method authorize.

/**
 * <pre>
 *	Specific to SPARQL 1.1 SE Subscribe request:
 *	1. Check if the request contains an "authorization" member.
 *	2. Check if the request contains an "authorization" member that start with "Bearer"
 *	3. Check if the value of the "authorization" member is a JWT object ==> VALIDATE TOKEN
 *
 *	Token validation:
 *	4. Check if the JWT object is signed
 *	5. Check if the signature of the JWT object is valid. This is to be checked with AS public signature verification key
 *	6. Check the contents of the JWT object
 *	7. Check if the value of "iss" is https://wot.arces.unibo.it:8443/oauth/token
 *	8. Check if the value of "aud" contains https://wot.arces.unibo.it:8443/sparql
 *	9. Accept the request as well as "sub" as the originator of the request and process it as usual
 *
 *	Respond with 401 if not
 *
 *	According to RFC6749, the error member can assume the following values: invalid_request, invalid_client, invalid_grant, unauthorized_client, unsupported_grant_type, invalid_scope.
 *
 *	     invalid_request
 *               The request is missing a required parameter, includes an
 *               unsupported parameter value (other than grant type),
 *               repeats a parameter, includes multiple credentials,
 *               utilizes more than one mechanism for authenticating the
 *               client, or is otherwise malformed.
 *
 *         invalid_client
 *               Client authentication failed (e.g., unknown client, no
 *               client authentication included, or unsupported
 *               authentication method).  The authorization server MAY
 *               return an HTTP 401 (Unauthorized) status code to indicate
 *               which HTTP authentication schemes are supported.  If the
 *               client attempted to authenticate via the "Authorization"
 *               request header field, the authorization server MUST
 *               respond with an HTTP 401 (Unauthorized) status code and
 *               include the "WWW-Authenticate" response header field
 *               matching the authentication scheme used by the client.
 *
 *         invalid_grant
 *               The provided authorization grant (e.g., authorization
 *               code, resource owner credentials) or refresh token is
 *               invalid, expired, revoked, does not match the redirection
 *               URI used in the authorization request, or was issued to
 *               another client.
 *
 *         unauthorized_client
 *               The authenticated client is not authorized to use this
 *               authorization grant type.
 *
 *         unsupported_grant_type
 *               The authorization grant type is not supported by the
 *               authorization server.
 *
 * </pre>
 * @throws SEPASecurityException
 */
protected final ClientAuthorization authorize(String message) throws SEPASecurityException {
    if (!authorizationRequired)
        return new ClientAuthorization();
    JsonObject request;
    try {
        request = new JsonParser().parse(message).getAsJsonObject();
    } catch (Exception e) {
        logger.error(e.getMessage());
        return new ClientAuthorization("invalid_request", "Failed to parse JSON message: " + message);
    }
    String bearer = null;
    JsonObject subUnsub = null;
    if (request.has("subscribe"))
        subUnsub = request.get("subscribe").getAsJsonObject();
    else if (request.has("unsubscribe"))
        subUnsub = request.get("unsubscribe").getAsJsonObject();
    if (subUnsub == null) {
        logger.error("Neither subscribe or unsuscribe found");
        return new ClientAuthorization("invalid_request", "Neither subscribe or unsuscribe found");
    }
    if (!subUnsub.has("authorization")) {
        logger.error("authorization member is missing");
        return new ClientAuthorization("invalid_request", "authorization member is missing");
    }
    try {
        bearer = subUnsub.get("authorization").getAsString();
    } catch (Exception e) {
        logger.error("Authorization member is not a string");
        return new ClientAuthorization("invalid_request", "authorization member is not a string");
    }
    if (!bearer.toUpperCase().startsWith("BEARER ")) {
        logger.error("Authorization value MUST be of type Bearer");
        return new ClientAuthorization("unsupported_grant_type", "Authorization value MUST be of type Bearer");
    }
    String jwt = bearer.substring(7);
    if (jwt == null) {
        logger.error("Token is null");
        return new ClientAuthorization("invalid_request", "Token is null");
    }
    if (jwt.equals("")) {
        logger.error("Token is empty");
        return new ClientAuthorization("invalid_request", "Token is empty");
    }
    // Token validation
    return Dependability.validateToken(jwt);
}

Example 14 with SEPASecurityException

use of it.unibo.arces.wot.sepa.commons.exceptions.SEPASecurityException in project SEPA by arces-wot.

the class WebsocketServer method onMessage.

@Override
public void onMessage(WebSocket conn, String message) {
    GateBeans.onMessage();
    // Check path
    if (!conn.getResourceDescriptor().equals(path)) {
        logger.warn("@onMessage bad resource descriptor: " + conn.getResourceDescriptor() + " Use: " + path);
        ErrorResponse response = new ErrorResponse(HttpStatus.SC_NOT_FOUND, "wrong_path", "Bad resource descriptor: " + conn.getResourceDescriptor() + " Use: " + path);
        try {
            conn.send(response.toString());
        } catch (Exception e) {
            logger.warn(e.getMessage());
        }
        return;
    }
    synchronized (gates) {
        try {
            if (gates.get(conn) != null)
                gates.get(conn).onMessage(message);
            else {
                logger.error("Gate NOT FOUND: " + conn);
            }
        } catch (SEPAProtocolException | SEPASecurityException | SEPASparqlParsingException e) {
            logger.error(e);
            ErrorResponse response = new ErrorResponse(HttpStatus.SC_BAD_REQUEST, "parsing failed", e.getMessage());
            try {
                conn.send(response.toString());
            } catch (Exception e1) {
                logger.warn(e1.getMessage());
            }
        }
    }
}

Example 15 with SEPASecurityException

use of it.unibo.arces.wot.sepa.commons.exceptions.SEPASecurityException in project SEPA by arces-wot.

the class Processor method processUpdate.

public synchronized Response processUpdate(InternalUpdateRequest update) {
    InternalUpdateRequest preRequest = update;
    if (spuManager.doUpdateARQuadsExtraction(update)) {
        try {
            preRequest = ARQuadsAlgorithm.extractARQuads(update, queryProcessor);
        } catch (SEPAProcessingException | SPARQL11ProtocolException | SEPASparqlParsingException e) {
            return new ErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR, "update_processing", e.getMessage());
        }
    }
    // PRE-UPDATE processing
    spuManager.subscriptionsProcessingPreUpdate(preRequest);
    // Endpoint UPDATE
    Response ret;
    try {
        ret = updateEndpoint(preRequest);
    } catch (SEPASecurityException | IOException e) {
        return new ErrorResponse(HttpStatus.SC_INTERNAL_SERVER_ERROR, "sparql11endpoint", e.getMessage());
    }
    // STOP processing?
    if (ret.isError()) {
        logger.error("*** UPDATE ENDPOINT PROCESSING FAILED *** " + ret);
        spuManager.abortSubscriptionsProcessing();
        return ret;
    }
    // POST-UPDATE processing
    spuManager.subscriptionsProcessingPostUpdate(ret);
    return ret;
}