org.sonatype.nexus.internal.web.ClientInfoProviderImpl.java Source code

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Here is the source code for org.sonatype.nexus.internal.web.ClientInfoProviderImpl.java

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/*
 * Sonatype Nexus (TM) Open Source Version
 * Copyright (c) 2008-present Sonatype, Inc.
 * All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
 *
 * This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
 * which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
 *
 * Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
 * of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
 * Eclipse Foundation. All other trademarks are the property of their respective owners.
 */
package org.sonatype.nexus.internal.web;

import javax.annotation.Nullable;
import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Provider;
import javax.inject.Singleton;
import javax.servlet.http.HttpServletRequest;

import org.sonatype.nexus.security.ClientInfo;
import org.sonatype.nexus.security.ClientInfoProvider;
import org.sonatype.nexus.security.UserIdHelper;

import com.google.common.net.HttpHeaders;
import com.google.inject.OutOfScopeException;
import com.google.inject.ProvisionException;

import static com.google.common.base.Preconditions.checkNotNull;

/**
 * Default {@link ClientInfoProvider}
 *
 * @since 3.0
 */
@Named
@Singleton
public class ClientInfoProviderImpl implements ClientInfoProvider {
    private final Provider<HttpServletRequest> httpRequestProvider;

    @Inject
    public ClientInfoProviderImpl(final Provider<HttpServletRequest> httpRequestProvider) {
        this.httpRequestProvider = checkNotNull(httpRequestProvider);
    }

    @Override
    @Nullable
    public ClientInfo getCurrentThreadClientInfo() {
        try {
            HttpServletRequest request = httpRequestProvider.get();
            return new ClientInfo(UserIdHelper.get(), request.getRemoteAddr(),
                    request.getHeader(HttpHeaders.USER_AGENT));
        } catch (ProvisionException | OutOfScopeException e) {
            // ignore; this happens when called out of scope of http request
            return null;
        }
    }
}