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/*
* Copyright (C) 2015, Google Inc.
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
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 =
new SectionParser<SignedPushConfig>() {
public SignedPushConfig parse(Config cfg) {
return new SignedPushConfig(cfg);
}
};
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 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;
}
/** @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;
}
/** @return the configured nonce slop limit. */
public int getCertNonceSlopLimit() {
return certNonceSlopLimit;
}
/**
* Set the {@link 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 HMACSHA1NonceGenerator} even if {@link
* #setCertNonceSeed(String)} was called.
*
* @param generator
* new nonce generator.
*/
public void setNonceGenerator(NonceGenerator generator) {
nonceGenerator = generator;
}
/**
* Get the {@link 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 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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