https://bz.apache.org/bugzilla/show_bug.cgi?id=58590
Bug ID: 58590
Summary: org.apache.catalina.realm.MemoryRealm can use
backgroundProcess() to reload tomcat-users.xml when it
changes
Product: Tomcat 9
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: apa...@leocap.com
Based on a derived class that I created and tested successfully with Tomcat 8,
I suggest the following lines be added to MemoryRealm in order to give it this
capability:
private Date _lastUpdate = null;
private File _usersFile = null;
public MemoryRealm()
{
_lastUpdate = new Date();
_usersFile = new File( getPathname() );
}
/**
* The default 10 second value for the Engine's backgroundProcessorDelay
XML attribute
* will cause this method to be called that often.
*/
@Override
public void backgroundProcess()
{
try {
// only reload if file has changed since we last loaded it
if( _lastUpdate.getTime() < _usersFile.lastModified() ) {
_lastUpdate = new Date();
log.info( "reloading " + getPathname() );
stop();
principals.clear();
start(); // trigger a repopulation (from tomcat-users.xml)
}
}
catch( Exception ex ) {
log.error( "Failed to re-initialise realm: ", ex );
}
}
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