| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| package com.cloud.api.dispatch; |
| |
| import java.lang.reflect.Field; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.cloudstack.api.ApiConstants; |
| import org.apache.cloudstack.api.BaseCmd; |
| import org.apache.cloudstack.api.Parameter; |
| import org.apache.log4j.Logger; |
| |
| /** |
| * This worker validates parameters in a generic way, by using annotated |
| * restrictions without involving the {@Link BaseCmd}. This worker doesn't |
| * know or care about the meaning of the parameters and that's why we can |
| * have it out of the {@Link BaseCmd} |
| * |
| * @author afornie |
| */ |
| public class ParamGenericValidationWorker implements DispatchWorker { |
| |
| static Logger s_logger = Logger.getLogger(ParamGenericValidationWorker.class.getName()); |
| |
| protected static final List<String> defaultParamNames = new ArrayList<String>(); |
| |
| static { |
| defaultParamNames.add(ApiConstants.ACCOUNT_ID); |
| defaultParamNames.add(ApiConstants.CTX_START_EVENT_ID); |
| defaultParamNames.add(ApiConstants.COMMAND); |
| defaultParamNames.add(ApiConstants.CMD_EVENT_TYPE); |
| defaultParamNames.add(ApiConstants.USERNAME); |
| defaultParamNames.add(ApiConstants.USER_ID); |
| defaultParamNames.add(ApiConstants.PASSWORD); |
| defaultParamNames.add(ApiConstants.DOMAIN); |
| defaultParamNames.add(ApiConstants.DOMAIN_ID); |
| defaultParamNames.add(ApiConstants.DOMAIN__ID); |
| defaultParamNames.add(ApiConstants.SESSIONKEY); |
| defaultParamNames.add(ApiConstants.RESPONSE); |
| defaultParamNames.add(ApiConstants.PAGE); |
| defaultParamNames.add(ApiConstants.USER_API_KEY); |
| defaultParamNames.add(ApiConstants.API_KEY); |
| defaultParamNames.add(ApiConstants.PAGE_SIZE); |
| defaultParamNames.add(ApiConstants.HTTPMETHOD); |
| defaultParamNames.add(ApiConstants.SIGNATURE); |
| defaultParamNames.add(ApiConstants.CTX_ACCOUNT_ID); |
| defaultParamNames.add(ApiConstants.CTX_START_EVENT_ID); |
| defaultParamNames.add(ApiConstants.CTX_USER_ID); |
| defaultParamNames.add(ApiConstants.CTX_DETAILS); |
| defaultParamNames.add(ApiConstants.UUID); |
| defaultParamNames.add(ApiConstants.ID); |
| defaultParamNames.add(ApiConstants.SIGNATURE_VERSION); |
| defaultParamNames.add(ApiConstants.EXPIRES); |
| defaultParamNames.add("_"); |
| } |
| |
| protected static final String ERROR_MSG_PREFIX = "Unknown parameters :"; |
| |
| @SuppressWarnings("rawtypes") |
| @Override |
| public void handle(final DispatchTask task) { |
| final BaseCmd cmd = task.getCmd(); |
| final Map params = task.getParams(); |
| |
| final List<String> expectedParamNames = getParamNamesForCommand(cmd); |
| |
| final StringBuilder errorMsg = new StringBuilder(ERROR_MSG_PREFIX); |
| boolean foundUnknownParam = false; |
| for (final Object actualParamName : params.keySet()) { |
| // If none of the expected params matches, we have an unknown param |
| boolean matchedCurrentParam = false; |
| for (final String expectedName : expectedParamNames) { |
| if (expectedName.equalsIgnoreCase((String) actualParamName)) { |
| matchedCurrentParam = true; |
| break; |
| } |
| } |
| if (!matchedCurrentParam && !((String)actualParamName).equalsIgnoreCase("expires") && !((String)actualParamName).equalsIgnoreCase("signatureversion")) { |
| errorMsg.append(" ").append(actualParamName); |
| foundUnknownParam= true; |
| } |
| } |
| |
| if (foundUnknownParam) { |
| s_logger.warn(String.format("Received unknown parameters for command %s. %s", cmd.getActualCommandName(), errorMsg)); |
| } |
| } |
| |
| protected List<String> getParamNamesForCommand(final BaseCmd cmd) { |
| final List<String> paramNames = new ArrayList<String>(); |
| // The expected param names are all the specific for the current command class ... |
| for (final Field field : cmd.getParamFields()) { |
| final Parameter parameterAnnotation = field.getAnnotation(Parameter.class); |
| paramNames.add(parameterAnnotation.name()); |
| } |
| // ... plus the default ones |
| paramNames.addAll(defaultParamNames); |
| return paramNames; |
| } |
| } |