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/*
* Copyright (C) 2015, Google Inc. and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.transport;
import org.eclipse.jgit.lib.Config;
import org.eclipse.jgit.lib.Config.SectionParser;
/**
* Configuration for server-side signed push verification.
*
* @since 4.1
*/
public class SignedPushConfig {
/** Key for {@link Config#get(SectionParser)}. */
public static final SectionParser<SignedPushConfig> KEY =
SignedPushConfig::new;
private String certNonceSeed;
private int certNonceSlopLimit;
private NonceGenerator nonceGenerator;
/**
* Create a new config with default values disabling push verification.
*/
public SignedPushConfig() {
}
SignedPushConfig(Config cfg) {
setCertNonceSeed(cfg.getString("receive", null, "certnonceseed")); //$NON-NLS-1$ //$NON-NLS-2$
certNonceSlopLimit = cfg.getInt("receive", "certnonceslop", 0); //$NON-NLS-1$ //$NON-NLS-2$
}
/**
* Set the seed used by the nonce verifier.
* <p>
* Setting this to a non-null value enables push certificate verification
* using the default
* {@link org.eclipse.jgit.transport.HMACSHA1NonceGenerator} implementation,
* if a different implementation was not set using
* {@link #setNonceGenerator(NonceGenerator)}.
*
* @param seed
* new seed value.
*/
public void setCertNonceSeed(String seed) {
certNonceSeed = seed;
}
/**
* Get the configured seed.
*
* @return the configured seed.
*/
public String getCertNonceSeed() {
return certNonceSeed;
}
/**
* Set the nonce slop limit.
* <p>
* Old but valid nonces within this limit will be accepted.
*
* @param limit
* new limit in seconds.
*/
public void setCertNonceSlopLimit(int limit) {
certNonceSlopLimit = limit;
}
/**
* Get the configured nonce slop limit.
*
* @return the configured nonce slop limit.
*/
public int getCertNonceSlopLimit() {
return certNonceSlopLimit;
}
/**
* Set the {@link org.eclipse.jgit.transport.NonceGenerator} used for signed
* pushes.
* <p>
* Setting this to a non-null value enables push certificate verification.
* If this method is called, this implementation will be used instead of the
* default {@link org.eclipse.jgit.transport.HMACSHA1NonceGenerator} even if
* {@link #setCertNonceSeed(String)} was called.
*
* @param generator
* new nonce generator.
*/
public void setNonceGenerator(NonceGenerator generator) {
nonceGenerator = generator;
}
/**
* Get the {@link org.eclipse.jgit.transport.NonceGenerator} used for signed
* pushes.
* <p>
* If {@link #setNonceGenerator(NonceGenerator)} was used to set a non-null
* implementation, that will be returned. If no custom implementation was
* set but {@link #setCertNonceSeed(String)} was called, returns a
* newly-created {@link org.eclipse.jgit.transport.HMACSHA1NonceGenerator}.
*
* @return the configured nonce generator.
*/
public NonceGenerator getNonceGenerator() {
if (nonceGenerator != null) {
return nonceGenerator;
} else if (certNonceSeed != null) {
return new HMACSHA1NonceGenerator(certNonceSeed);
}
return null;
}
}
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