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84 lines
3.1 KiB
Java
84 lines
3.1 KiB
Java
/**
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* Copyright (c) 2014, Sebastian Sdorra
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of SCM-Manager; nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* http://bitbucket.org/sdorra/scm-manager
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*
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*/
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package sonia.scm.security;
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import com.google.common.collect.ImmutableSet;
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import sonia.scm.plugin.Extension;
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import javax.inject.Inject;
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import javax.inject.Provider;
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import javax.servlet.http.HttpServletRequest;
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import java.util.Locale;
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import java.util.Optional;
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import java.util.Set;
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/**
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* Validates xsrf protected access tokens. The validator check if the current request contains an xsrf key which is
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* equal to the one in the access token. If the token does not contain a xsrf key, the check is passed by. The xsrf keys
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* are added by the {@link XsrfAccessTokenEnricher}.
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*
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* @author Sebastian Sdorra
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* @since 2.0.0
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*/
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@Extension
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public class XsrfAccessTokenValidator implements AccessTokenValidator {
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private static final Set<String> ALLOWED_METHOD = ImmutableSet.of(
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"GET", "HEAD", "OPTIONS"
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);
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private final Provider<HttpServletRequest> requestProvider;
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/**
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* Constructs a new instance.
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*
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* @param requestProvider http request provider
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*/
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@Inject
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public XsrfAccessTokenValidator(Provider<HttpServletRequest> requestProvider) {
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this.requestProvider = requestProvider;
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}
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@Override
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public boolean validate(AccessToken accessToken) {
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Optional<String> xsrfClaim = accessToken.getCustom(Xsrf.TOKEN_KEY);
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if (xsrfClaim.isPresent()) {
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HttpServletRequest request = requestProvider.get();
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String xsrfHeaderValue = request.getHeader(Xsrf.HEADER_KEY);
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return ALLOWED_METHOD.contains(request.getMethod().toUpperCase(Locale.ENGLISH))
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|| xsrfClaim.get().equals(xsrfHeaderValue);
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}
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return true;
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}
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}
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