/*
* Copyright 1999-2015 dangdang.com.
* <p>
* 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.
* </p>
*/
package com.dangdang.ddframe.job.lite.internal.util;
import com.dangdang.ddframe.job.util.env.IpUtils;
import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.collect.Lists;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* 敏感信息过滤工具类.
*
* @author caohao
*/
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public final class SensitiveInfoUtils {
private static final String FAKE_IP_SAMPLE = "ip";
/**
* 屏蔽替换IP地址敏感信息.
*
* @param target 待替换敏感信息的字符串列表
* @return 替换敏感信息后的字符串列表
*/
public static List<String> filterSensitiveIps(final List<String> target) {
final Map<String, String> fakeIpMap = new HashMap<>();
final AtomicInteger step = new AtomicInteger();
return Lists.transform(target, new Function<String, String>() {
@Override
public String apply(final String input) {
Matcher matcher = Pattern.compile(IpUtils.IP_REGEX).matcher(input);
String result = input;
while (matcher.find()) {
String realIp = matcher.group();
String fakeIp;
if (fakeIpMap.containsKey(realIp)) {
fakeIp = fakeIpMap.get(realIp);
} else {
fakeIp = Joiner.on("").join(FAKE_IP_SAMPLE, step.incrementAndGet());
fakeIpMap.put(realIp, fakeIp);
}
result = result.replace(realIp, fakeIp);
}
return result;
}
});
}
}