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com.alibaba.nacos.client.config.utils.ParamUtils Maven / Gradle / Ivy
/*
* Copyright 1999-2018 Alibaba Group Holding Ltd.
*
* Licensed 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.alibaba.nacos.client.config.utils;
import com.alibaba.nacos.api.exception.NacosException;
import com.alibaba.nacos.common.utils.InternetAddressUtil;
import com.alibaba.nacos.common.utils.StringUtils;
import java.util.List;
/**
* Param check util.
*
* @author Nacos
*/
public class ParamUtils {
private static final char[] VALID_CHARS = new char[] {'_', '-', '.', ':'};
private static final String CONTENT_INVALID_MSG = "content invalid";
private static final String DATAID_INVALID_MSG = "dataId invalid";
private static final String TENANT_INVALID_MSG = "tenant invalid";
private static final String BETAIPS_INVALID_MSG = "betaIps invalid";
private static final String GROUP_INVALID_MSG = "group invalid";
private static final String DATUMID_INVALID_MSG = "datumId invalid";
/**
* Check the whitelist method, the legal parameters can only contain letters, numbers, and characters in validChars, and cannot be empty.
*
* @param param parameter
* @return true if valid
*/
public static boolean isValid(String param) {
if (param == null) {
return false;
}
int length = param.length();
for (int i = 0; i < length; i++) {
char ch = param.charAt(i);
if (!Character.isLetterOrDigit(ch) && !isValidChar(ch)) {
return false;
}
}
return true;
}
private static boolean isValidChar(char ch) {
for (char c : VALID_CHARS) {
if (c == ch) {
return true;
}
}
return false;
}
/**
* Check Tenant, dataId and group.
*
* @param tenant tenant
* @param dataId dataId
* @param group group
* @throws NacosException nacos exception
*/
public static void checkTdg(String tenant, String dataId, String group) throws NacosException {
checkTenant(tenant);
if (StringUtils.isBlank(dataId) || !ParamUtils.isValid(dataId)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, DATAID_INVALID_MSG);
}
if (StringUtils.isBlank(group) || !ParamUtils.isValid(group)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, GROUP_INVALID_MSG);
}
}
/**
* Check key param.
*
* @param dataId dataId
* @param group group
* @throws NacosException nacos exception
*/
public static void checkKeyParam(String dataId, String group) throws NacosException {
if (StringUtils.isBlank(dataId) || !ParamUtils.isValid(dataId)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, DATAID_INVALID_MSG);
}
if (StringUtils.isBlank(group) || !ParamUtils.isValid(group)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, GROUP_INVALID_MSG);
}
}
/**
* Check key param.
*
* @param dataId dataId
* @param group group
* @param datumId datumId
* @throws NacosException nacos exception
*/
public static void checkKeyParam(String dataId, String group, String datumId) throws NacosException {
if (StringUtils.isBlank(dataId) || !ParamUtils.isValid(dataId)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, DATAID_INVALID_MSG);
}
if (StringUtils.isBlank(group) || !ParamUtils.isValid(group)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, GROUP_INVALID_MSG);
}
if (StringUtils.isBlank(datumId) || !ParamUtils.isValid(datumId)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, DATUMID_INVALID_MSG);
}
}
/**
* Check key param.
*
* @param dataIds dataIds
* @param group group
* @throws NacosException nacos exception
*/
public static void checkKeyParam(List dataIds, String group) throws NacosException {
if (dataIds == null || dataIds.size() == 0) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, "dataIds invalid");
}
for (String dataId : dataIds) {
if (StringUtils.isBlank(dataId) || !ParamUtils.isValid(dataId)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, DATAID_INVALID_MSG);
}
}
if (StringUtils.isBlank(group) || !ParamUtils.isValid(group)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, GROUP_INVALID_MSG);
}
}
/**
* Check parameter.
*
* @param dataId dataId
* @param group group
* @param content content
* @throws NacosException nacos exception
*/
public static void checkParam(String dataId, String group, String content) throws NacosException {
checkKeyParam(dataId, group);
if (StringUtils.isBlank(content)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, CONTENT_INVALID_MSG);
}
}
/**
* Check parameter.
*
* @param dataId dataId
* @param group group
* @param datumId datumId
* @param content content
* @throws NacosException nacos exception
*/
public static void checkParam(String dataId, String group, String datumId, String content) throws NacosException {
checkKeyParam(dataId, group, datumId);
if (StringUtils.isBlank(content)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, CONTENT_INVALID_MSG);
}
}
/**
* Check Tenant.
*
* @param tenant tenant
* @throws NacosException nacos exception
*/
public static void checkTenant(String tenant) throws NacosException {
if (StringUtils.isBlank(tenant) || !ParamUtils.isValid(tenant)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, TENANT_INVALID_MSG);
}
}
/**
* Check beta ips.
*
* @param betaIps beta ips
* @throws NacosException nacos exception
*/
public static void checkBetaIps(String betaIps) throws NacosException {
if (StringUtils.isBlank(betaIps)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, BETAIPS_INVALID_MSG);
}
String[] ipsArr = betaIps.split(",");
for (String ip : ipsArr) {
if (!InternetAddressUtil.isIP(ip)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, BETAIPS_INVALID_MSG);
}
}
}
/**
* Check content.
*
* @param content content
* @throws NacosException nacos exception
*/
public static void checkContent(String content) throws NacosException {
if (StringUtils.isBlank(content)) {
throw new NacosException(NacosException.CLIENT_INVALID_PARAM, CONTENT_INVALID_MSG);
}
}
}
