Examples with CommandResponse edu.umass.cs.gnsserver.gnsapp.clientCommandProcessor.commandSupport.CommandResponse used on opensource projects

Example 26 with CommandResponse

use of edu.umass.cs.gnsserver.gnsapp.clientCommandProcessor.commandSupport.CommandResponse in project GNS by MobilityFirst.

the class GNSHttpServer method processQuery.

/*
   * Process queries for the http service. Converts the URI of e the HTTP query into
   * the JSON Object format that is used by the CommandModeule class, then finds
   * executes the matching command.
   *
   * @throws InternalRequestException
   */
private CommandResponse processQuery(String host, String commandName, String queryString, boolean secureServer) throws InternalRequestException {
    // the signature, and the message signed.
    try {
        // Note that the commandName is not part of the queryString string here so
        // it doesn't end up in the jsonCommand. Also see below where we put the
        // command integer into the jsonCommand.
        JSONObject jsonCommand = Util.parseURIQueryStringIntoJSONObject(queryString);
        // If the signature exists it is Base64 encoded so decode it now.
        if (jsonCommand.has(GNSProtocol.SIGNATURE.toString())) {
            jsonCommand.put(GNSProtocol.SIGNATURE.toString(), new String(Base64.decode(jsonCommand.getString(GNSProtocol.SIGNATURE.toString())), GNSProtocol.CHARSET.toString()));
        }
        // getCommandForHttp allows for "dump" as well as "Dump"
        CommandType commandType = CommandType.getCommandForHttp(commandName);
        if (commandType == null) {
            return new CommandResponse(ResponseCode.OPERATION_NOT_SUPPORTED, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.OPERATION_NOT_SUPPORTED.toString() + " Sorry, don't understand " + commandName + QUERYPREFIX + queryString);
        }
        //Only allow mutual auth commands if we're on a secure (HTTPS) server
        if (commandType.isMutualAuth() && !secureServer) {
            return new CommandResponse(ResponseCode.OPERATION_NOT_SUPPORTED, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.OPERATION_NOT_SUPPORTED.toString() + " Not authorized to execute " + commandName + QUERYPREFIX + queryString);
        }
        // The client currently just uses the command name (which is not part of the
        // query string above) so we need to stuff
        // in the Command integer for the signature check and execution.
        jsonCommand.put(GNSProtocol.COMMAND_INT.toString(), commandType.getInt());
        // Optionally does some sanity checking on the message if that was enabled at the client.
        // This makes necessary changes to the jsonCommand so don't remove this call
        // unless you know what you're doing and also change the code in the HTTP client.
        sanityCheckMessage(jsonCommand);
        // is true (or there was a problem).
        if (client == null || commandType.isLocallyHandled()) {
            // EXECUTE IT LOCALLY
            AbstractCommand command;
            try {
                command = commandModule.lookupCommand(commandType);
                // Do some work to get the signature and message into the command for
                // signature checking that happens later on.
                // This only happens for local execution because remote handling (in the
                // other side of the if) already does this.
                processSignature(jsonCommand);
                if (command != null) {
                    return CommandHandler.executeCommand(command, new CommandPacket((long) (Math.random() * Long.MAX_VALUE), jsonCommand, false), requestHandler);
                }
                LOGGER.log(Level.FINE, "lookupCommand returned null for {0}", commandName);
            } catch (IllegalArgumentException e) {
                LOGGER.log(Level.FINE, "lookupCommand failed for {0}", commandName);
            }
            return new CommandResponse(ResponseCode.OPERATION_NOT_SUPPORTED, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.OPERATION_NOT_SUPPORTED.toString() + " Sorry, don't understand " + commandName + QUERYPREFIX + queryString);
        } else {
            // Send the command remotely using a client
            try {
                LOGGER.log(Level.FINE, "Sending command out to a remote server: {0}", jsonCommand);
                CommandPacket commandResponsePacket = getResponseUsingGNSClient(client, jsonCommand);
                return new CommandResponse(ResponseCode.NO_ERROR, // There is similar code to this other places.
                specialCaseSingleFieldRead(commandResponsePacket.getResultString(), commandType, jsonCommand));
            } catch (IOException | ClientException e) {
                return new CommandResponse(ResponseCode.UNSPECIFIED_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.UNSPECIFIED_ERROR.toString() + " " + e.toString());
            //      } catch (ClientException e) {
            //        return new CommandResponse(ResponseCode.GNSProtocol.UNSPECIFIED_ERROR.toString(),
            //                GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.OPERATION_NOT_SUPPORTED.toString()
            //                + " Sorry, don't understand " + commandName + QUERYPREFIX + queryString);
            }
        }
    } catch (JSONException | UnsupportedEncodingException e) {
        return new CommandResponse(ResponseCode.UNSPECIFIED_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.UNSPECIFIED_ERROR.toString() + " " + e.toString());
    }
}

Example 27 with CommandResponse

use of edu.umass.cs.gnsserver.gnsapp.clientCommandProcessor.commandSupport.CommandResponse in project GNS by MobilityFirst.

the class AddGuid method execute.

@Override
public CommandResponse execute(InternalRequestHeader header, CommandPacket commandPacket, ClientRequestHandlerInterface handler) throws InvalidKeyException, InvalidKeySpecException, JSONException, NoSuchAlgorithmException, SignatureException, UnsupportedEncodingException {
    JSONObject json = commandPacket.getCommand();
    String name = json.getString(GNSProtocol.NAME.toString());
    String accountGuid = json.getString(GNSProtocol.GUID.toString());
    String publicKey = json.optString(GNSProtocol.PUBLIC_KEY.toString(), null);
    String signature = json.getString(GNSProtocol.SIGNATURE.toString());
    String message = json.getString(GNSProtocol.SIGNATUREFULLMESSAGE.toString());
    String newGuid;
    if (publicKey != null) {
        newGuid = SharedGuidUtils.createGuidStringFromBase64PublicKey(publicKey);
    } else {
        // add a fake public key
        publicKey = GuidInfo.KEYLESS_PREFIX + name;
        newGuid = SharedGuidUtils.createGuidStringFromPublicKey(publicKey.getBytes());
    }
    GuidInfo accountGuidInfo;
    if ((accountGuidInfo = AccountAccess.lookupGuidInfoAnywhere(header, accountGuid, handler)) == null) {
        return new CommandResponse(ResponseCode.BAD_GUID_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_GUID.toString() + " " + accountGuid);
    }
    if (NSAccessSupport.verifySignature(accountGuidInfo.getPublicKey(), signature, message)) {
        AccountInfo accountInfo = AccountAccess.lookupAccountInfoFromGuidAnywhere(header, accountGuid, handler);
        if (accountInfo == null) {
            return new CommandResponse(ResponseCode.BAD_ACCOUNT_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_ACCOUNT.toString() + " " + accountGuid);
        }
        if (!accountInfo.isVerified()) {
            return new CommandResponse(ResponseCode.VERIFICATION_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.VERIFICATION_ERROR.toString() + " Account not verified");
        } else if (accountInfo.getGuids().size() > Config.getGlobalInt(GNSConfig.GNSC.ACCOUNT_GUID_MAX_SUBGUIDS)) {
            return new CommandResponse(ResponseCode.TOO_MANY_GUIDS_EXCEPTION, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.TOO_MANY_GUIDS.toString());
        } else {
            CommandResponse result = AccountAccess.addGuid(header, commandPacket, accountInfo, accountGuidInfo, name, newGuid, publicKey, handler);
            if (result.getExceptionOrErrorCode().isOKResult()) {
                // Everything is hunkey dorey so return the new guid
                return new CommandResponse(ResponseCode.NO_ERROR, newGuid);
            } else {
                // Otherwise return the error response
                return result;
            }
        }
    } else {
        // Signature verification failed
        return new CommandResponse(ResponseCode.SIGNATURE_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_SIGNATURE.toString());
    }
//}
}

Example 28 with CommandResponse

use of edu.umass.cs.gnsserver.gnsapp.clientCommandProcessor.commandSupport.CommandResponse in project GNS by MobilityFirst.

the class AddMultipleGuids method execute.

@Override
public CommandResponse execute(InternalRequestHeader header, CommandPacket commandPacket, ClientRequestHandlerInterface handler) throws InvalidKeyException, InvalidKeySpecException, JSONException, NoSuchAlgorithmException, SignatureException, UnsupportedEncodingException {
    JSONObject json = commandPacket.getCommand();
    String guid = json.getString(GNSProtocol.GUID.toString());
    String guidCntString = json.optString(GNSProtocol.GUIDCNT.toString());
    JSONArray names = json.optJSONArray(GNSProtocol.NAMES.toString());
    JSONArray publicKeys = json.optJSONArray(GNSProtocol.PUBLIC_KEYS.toString());
    String signature = json.getString(GNSProtocol.SIGNATURE.toString());
    String message = json.getString(GNSProtocol.SIGNATUREFULLMESSAGE.toString());
    GuidInfo accountGuidInfo;
    if ((accountGuidInfo = AccountAccess.lookupGuidInfoAnywhere(header, guid, handler)) == null) {
        return new CommandResponse(ResponseCode.BAD_GUID_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_GUID.toString() + " " + guid);
    }
    if (NSAccessSupport.verifySignature(accountGuidInfo.getPublicKey(), signature, message)) {
        AccountInfo accountInfo = AccountAccess.lookupAccountInfoFromGuidAnywhere(header, guid, handler);
        if (accountInfo == null) {
            return new CommandResponse(ResponseCode.BAD_ACCOUNT_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_ACCOUNT.toString() + " " + guid);
        }
        if (!accountInfo.isVerified()) {
            return new CommandResponse(ResponseCode.VERIFICATION_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.VERIFICATION_ERROR.toString() + " Account not verified");
        } else if (accountInfo.getGuids().size() > Config.getGlobalInt(GNSConfig.GNSC.ACCOUNT_GUID_MAX_SUBGUIDS)) {
            return new CommandResponse(ResponseCode.TOO_MANY_GUIDS_EXCEPTION, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.TOO_MANY_GUIDS.toString());
        } else if (names != null && publicKeys != null) {
            GNSConfig.getLogger().log(Level.INFO, "ADD SLOW{0} / {1}", new Object[] { names, publicKeys });
            return AccountAccess.addMultipleGuids(header, commandPacket, JSONUtils.JSONArrayToArrayListString(names), JSONUtils.JSONArrayToArrayListString(publicKeys), accountInfo, accountGuidInfo, handler);
        } else if (names != null) {
            //GNS.getLogger().info("ADD FASTER" + names + " / " + publicKeys);
            return AccountAccess.addMultipleGuidsFaster(header, commandPacket, JSONUtils.JSONArrayToArrayListString(names), accountInfo, accountGuidInfo, handler);
        } else if (guidCntString != null) {
            //GNS.getLogger().info("ADD RANDOM" + names + " / " + publicKeys);
            int guidCnt = Integer.parseInt(guidCntString);
            return AccountAccess.addMultipleGuidsFasterAllRandom(header, commandPacket, guidCnt, accountInfo, accountGuidInfo, handler);
        } else {
            return new CommandResponse(ResponseCode.UNSPECIFIED_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.UNSPECIFIED_ERROR.toString() + " bad arguments: need " + GNSProtocol.NAMES.toString() + " or " + GNSProtocol.NAMES.toString() + " and " + GNSProtocol.PUBLIC_KEYS.toString() + " or " + GNSProtocol.GUIDCNT.toString());
        }
    } else {
        return new CommandResponse(ResponseCode.SIGNATURE_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_SIGNATURE.toString());
    }
//}
}

Example 29 with CommandResponse

use of edu.umass.cs.gnsserver.gnsapp.clientCommandProcessor.commandSupport.CommandResponse in project GNS by MobilityFirst.

the class RemoveGuid method execute.

@Override
public CommandResponse execute(InternalRequestHeader header, CommandPacket commandPacket, ClientRequestHandlerInterface handler) throws InvalidKeyException, InvalidKeySpecException, JSONException, NoSuchAlgorithmException, SignatureException, UnsupportedEncodingException, InternalRequestException {
    JSONObject json = commandPacket.getCommand();
    String guidToRemove = json.getString(GNSProtocol.GUID.toString());
    String accountGuid = json.optString(GNSProtocol.ACCOUNT_GUID.toString(), null);
    String signature = json.getString(GNSProtocol.SIGNATURE.toString());
    String message = json.getString(GNSProtocol.SIGNATUREFULLMESSAGE.toString());
    GuidInfo accountGuidInfo = null;
    GuidInfo guidInfoToRemove;
    if ((guidInfoToRemove = AccountAccess.lookupGuidInfoLocally(header, guidToRemove, handler)) == null) {
        // Removing a non-existant guid is no longer an error.
        return new CommandResponse(ResponseCode.NO_ERROR, GNSProtocol.OK_RESPONSE.toString());
    //return new CommandResponse(ResponseCode.BAD_GUID_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_GUID.toString() + " " + guidToRemove);
    }
    if (accountGuid != null) {
        if ((accountGuidInfo = AccountAccess.lookupGuidInfoAnywhere(header, accountGuid, handler)) == null) {
            return new CommandResponse(ResponseCode.BAD_GUID_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_GUID.toString() + " " + accountGuid);
        }
    }
    if (NSAccessSupport.verifySignature(accountGuidInfo != null ? accountGuidInfo.getPublicKey() : guidInfoToRemove.getPublicKey(), signature, message)) {
        AccountInfo accountInfo = null;
        if (accountGuid != null) {
            accountInfo = AccountAccess.lookupAccountInfoFromGuidAnywhere(header, accountGuid, handler);
            if (accountInfo == null) {
                return new CommandResponse(ResponseCode.BAD_ACCOUNT_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_ACCOUNT.toString() + " " + accountGuid);
            }
        }
        return AccountAccess.removeGuid(header, commandPacket, guidInfoToRemove, accountInfo, handler);
    } else {
        return new CommandResponse(ResponseCode.SIGNATURE_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_SIGNATURE.toString());
    }
}

Example 30 with CommandResponse

use of edu.umass.cs.gnsserver.gnsapp.clientCommandProcessor.commandSupport.CommandResponse in project GNS by MobilityFirst.

the class RetrieveAliases method execute.

@Override
public CommandResponse execute(InternalRequestHeader header, CommandPacket commandPacket, ClientRequestHandlerInterface handler) throws InvalidKeyException, InvalidKeySpecException, JSONException, NoSuchAlgorithmException, SignatureException, UnsupportedEncodingException {
    JSONObject json = commandPacket.getCommand();
    String guid = json.getString(GNSProtocol.GUID.toString());
    String signature = json.getString(GNSProtocol.SIGNATURE.toString());
    String message = json.getString(GNSProtocol.SIGNATUREFULLMESSAGE.toString());
    GuidInfo guidInfo;
    if ((guidInfo = AccountAccess.lookupGuidInfoLocally(header, guid, handler)) == null) {
        return new CommandResponse(ResponseCode.BAD_GUID_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_GUID.toString() + " " + guid);
    }
    if (NSAccessSupport.verifySignature(guidInfo.getPublicKey(), signature, message)) {
        AccountInfo accountInfo = AccountAccess.lookupAccountInfoFromGuidLocally(header, guid, handler);
        if (accountInfo == null) {
            return new CommandResponse(ResponseCode.BAD_ACCOUNT_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_ACCOUNT.toString() + " " + guid);
        } else if (!accountInfo.isVerified()) {
            return new CommandResponse(ResponseCode.VERIFICATION_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.VERIFICATION_ERROR.toString() + " Account not verified");
        }
        List<String> aliases = accountInfo.getAliases();
        return new CommandResponse(ResponseCode.NO_ERROR, new JSONArray(aliases).toString());
    } else {
        return new CommandResponse(ResponseCode.SIGNATURE_ERROR, GNSProtocol.BAD_RESPONSE.toString() + " " + GNSProtocol.BAD_SIGNATURE.toString());
    }
}