fi.helsinki.opintoni.security.SecurityUtils.java Source code

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Here is the source code for fi.helsinki.opintoni.security.SecurityUtils.java

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/*
 * This file is part of MystudiesMyteaching application.
 *
 * MystudiesMyteaching application is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MystudiesMyteaching application 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MystudiesMyteaching application.  If not, see <http://www.gnu.org/licenses/>.
 */

package fi.helsinki.opintoni.security;

import fi.helsinki.opintoni.config.AppConfiguration;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.stereotype.Component;

import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;

@Component
public class SecurityUtils {

    private final AppConfiguration appConfiguration;

    @Autowired
    public SecurityUtils(AppConfiguration appConfiguration) {
        this.appConfiguration = appConfiguration;
    }

    public String getCurrentLogin() {
        SecurityContext securityContext = SecurityContextHolder.getContext();
        Authentication authentication = securityContext.getAuthentication();
        String userName = null;
        if (authentication != null) {
            if (authentication.getPrincipal() instanceof UserDetails) {
                UserDetails springSecurityUser = (UserDetails) authentication.getPrincipal();
                userName = springSecurityUser.getUsername();
            } else if (authentication.getPrincipal() instanceof String) {
                userName = (String) authentication.getPrincipal();
            }
        }
        return userName;
    }

    public Optional<AppUser> getAppUser() {
        return getAuthentication().map(Authentication::getPrincipal).map(AppUser.class::cast);
    }

    private Optional<Authentication> getAuthentication() {
        return Optional.ofNullable(SecurityContextHolder.getContext().getAuthentication());
    }

    public String getWhitelistedIpAccess() {
        List<String> whitelistedIps = appConfiguration.getStringValues("whitelistedIps");
        return whitelistedIps.stream().map(ip -> "hasIpAddress('" + ip + "')").collect(Collectors.joining(" or "));
    }
}