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SpringSecurityCoreVersion.java
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SpringSecurityCoreVersion.java
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/*
* Copyright 2002-2016 the original author or authors.
*
* 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
*
* https://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 org.springframework.security.core;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.core.SpringVersion;
/**
* Internal class used for checking version compatibility in a deployed application.
*
* @author Luke Taylor
* @author Rob Winch
*/
public class SpringSecurityCoreVersion {
private static final String DISABLE_CHECKS = SpringSecurityCoreVersion.class.getName()
.concat(".DISABLE_CHECKS");
private static final Log logger = LogFactory.getLog(SpringSecurityCoreVersion.class);
/**
* Global Serialization value for Spring Security classes.
*
* N.B. Classes are not intended to be serializable between different versions. See
* SEC-1709 for why we still need a serial version.
*/
public static final long SERIAL_VERSION_UID = 420L;
static final String MIN_SPRING_VERSION = "4.3.30.RELEASE";
static {
performVersionChecks();
}
public static String getVersion() {
Package pkg = SpringSecurityCoreVersion.class.getPackage();
return (pkg != null ? pkg.getImplementationVersion() : null);
}
/**
* Performs version checks
*/
private static void performVersionChecks() {
performVersionChecks(MIN_SPRING_VERSION);
}
/**
* Perform version checks with specific min Spring Version
*
* @param minSpringVersion
*/
private static void performVersionChecks(String minSpringVersion) {
// Check Spring Compatibility
String springVersion = SpringVersion.getVersion();
String version = getVersion();
if (disableChecks(springVersion, version)) {
return;
}
logger.info("You are running with Spring Security Core " + version);
if (new ComparableVersion(springVersion)
.compareTo(new ComparableVersion(minSpringVersion)) < 0) {
logger.warn("**** You are advised to use Spring " + minSpringVersion
+ " or later with this version. You are running: " + springVersion);
}
}
/**
* Disable if springVersion and springSecurityVersion are the same to allow working
* with Uber Jars.
*
* @param springVersion
* @param springSecurityVersion
* @return
*/
private static boolean disableChecks(String springVersion,
String springSecurityVersion) {
if (springVersion == null || springVersion.equals(springSecurityVersion)) {
return true;
}
return Boolean.getBoolean(DISABLE_CHECKS);
}
}