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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jrt;
import com.yahoo.security.tls.Capability;
import com.yahoo.security.tls.CapabilityMode;
import com.yahoo.security.tls.CapabilitySet;
import com.yahoo.security.tls.ConnectionAuthContext;
import com.yahoo.security.tls.TransportSecurityUtils;
import java.util.logging.Logger;
import static com.yahoo.security.tls.CapabilityMode.DISABLE;
import static com.yahoo.security.tls.CapabilityMode.LOG_ONLY;
/**
* @author bjorncs
*/
public class RequireCapabilitiesFilter implements RequestAccessFilter {
private static final Logger log = Logger.getLogger(RequireCapabilitiesFilter.class.getName());
private static final CapabilityMode MODE = TransportSecurityUtils.getCapabilityMode();
private final CapabilitySet requiredCapabilities;
public RequireCapabilitiesFilter(CapabilitySet requiredCapabilities) {
this.requiredCapabilities = requiredCapabilities;
}
public RequireCapabilitiesFilter(Capability... requiredCapabilities) {
this(CapabilitySet.from(requiredCapabilities));
}
@Override
public boolean allow(Request r) {
if (MODE == DISABLE) return true;
ConnectionAuthContext ctx = r.target().connectionAuthContext();
CapabilitySet peerCapabilities = ctx.capabilities();
boolean authorized = peerCapabilities.has(requiredCapabilities);
if (!authorized) {
String msg = "%sPermission denied for RPC method '%s'. Peer at %s with %s. Call requires %s, but peer has %s"
.formatted(MODE == LOG_ONLY ? "Dry-run: " : "", r.methodName(), r.target().peerSpec(), ctx.peerCertificateString().orElseThrow(),
requiredCapabilities.toNames(), peerCapabilities.toNames());
if (MODE == LOG_ONLY) {
log.info(msg);
return true;
} else {
log.warning(msg);
return false;
}
}
return true;
}
}
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