io.pivotal.cla.security.Login.java Source code

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Here is the source code for io.pivotal.cla.security.Login.java

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/*
 * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.pivotal.cla.security;

import java.util.Collection;
import java.util.List;

import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;

import io.pivotal.cla.data.User;

public class Login {

    public static Authentication loginAs(User user) {
        SecurityContext context = SecurityContextHolder.createEmptyContext();
        UserAuthentication authentication = new UserAuthentication(user);
        context.setAuthentication(authentication);
        SecurityContextHolder.setContext(context);
        return authentication;
    }

    static class UserAuthentication implements Authentication {
        private static final List<GrantedAuthority> ADMIN_ROLES = AuthorityUtils.createAuthorityList("ROLE_USER",
                "ROLE_ADMIN");

        private static final List<GrantedAuthority> CLA_AUTHOR_ROLES = AuthorityUtils
                .createAuthorityList("ROLE_USER", "ROLE_ADMIN", "ROLE_CLA_AUTHOR");

        private static final List<GrantedAuthority> USER_ROLES = AuthorityUtils.createAuthorityList("ROLE_USER");

        private static final long serialVersionUID = 4717809728702726728L;

        final User user;

        public UserAuthentication(User user) {
            this.user = user;
        }

        @Override
        public String getName() {
            return String.valueOf(user.getGitHubLogin());
        }

        @Override
        public Collection<? extends GrantedAuthority> getAuthorities() {
            if (user.isAdmin()) {
                return user.isClaAuthor() ? CLA_AUTHOR_ROLES : ADMIN_ROLES;
            }
            return USER_ROLES;
        }

        @Override
        public Object getCredentials() {
            return null;
        }

        @Override
        public Object getDetails() {
            return null;
        }

        @Override
        public Object getPrincipal() {
            return user;
        }

        @Override
        public boolean isAuthenticated() {
            return true;
        }

        @Override
        public void setAuthenticated(boolean isAuthenticated) throws IllegalArgumentException {
            throw new UnsupportedOperationException();
        }
    }
}