org.openscoring.service.NetworkSecurityContext.java Source code

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Here is the source code for org.openscoring.service.NetworkSecurityContext.java

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/*
 * Copyright (c) 2014 Villu Ruusmann
 *
 * This file is part of Openscoring
 *
 * Openscoring is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Openscoring is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Openscoring.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.openscoring.service;

import java.io.IOException;
import java.net.InetAddress;
import java.security.Principal;
import java.util.Set;

import javax.servlet.ServletRequest;
import javax.ws.rs.core.SecurityContext;

import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Sets;

public class NetworkSecurityContext implements SecurityContext {

    private ServletRequest request = null;

    public NetworkSecurityContext(ServletRequest request) {
        setRequest(request);
    }

    @Override
    public String getAuthenticationScheme() {
        return "NETWORK";
    }

    @Override
    public boolean isSecure() {
        ServletRequest request = getRequest();

        return request.isSecure();
    }

    @Override
    public Principal getUserPrincipal() {
        return Anonymous.INSTANCE;
    }

    @Override
    public boolean isUserInRole(String role) {
        ServletRequest request = getRequest();

        if (("admin").equals(role)) {
            String address = request.getRemoteAddr();

            return (NetworkSecurityContext.addresses).contains(address);
        }

        return false;
    }

    public ServletRequest getRequest() {
        return this.request;
    }

    private void setRequest(ServletRequest request) {
        this.request = request;
    }

    static private Set<String> discoverLocalAddresses() throws IOException {
        Set<String> result = Sets.newLinkedHashSet();

        InetAddress address = InetAddress.getLocalHost();
        result.add(address.getHostAddress());

        InetAddress[] resolvedAddresses = InetAddress.getAllByName("localhost");
        for (InetAddress resolvedAddress : resolvedAddresses) {
            result.add(resolvedAddress.getHostAddress());
        }

        return result;
    }

    private static final Set<String> addresses;

    static {

        try {
            addresses = ImmutableSet.copyOf(discoverLocalAddresses());
        } catch (IOException ioe) {
            throw new ExceptionInInitializerError(ioe);
        }
    }

    static private class Anonymous implements Principal {

        private Anonymous() {
        }

        @Override
        public String getName() {
            return "ANONYMOUS";
        }

        private static final Anonymous INSTANCE = new Anonymous();
    }
}