com.swisscom.cloud.sb.broker.security.ApplicationUserInitializer.groovy Maven / Gradle / Ivy

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/*
 * Copyright (c) 2018 Swisscom (Switzerland) Ltd.
 *
 * 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 com.swisscom.cloud.sb.broker.security

import com.swisscom.cloud.sb.broker.config.ApplicationUserConfig
import com.swisscom.cloud.sb.broker.config.UserConfig
import com.swisscom.cloud.sb.broker.model.ApplicationUser
import com.swisscom.cloud.sb.broker.repository.ApplicationUserRepository
import groovy.transform.CompileStatic
import org.slf4j.Logger
import org.slf4j.LoggerFactory
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.security.crypto.password.PasswordEncoder
import org.springframework.stereotype.Component

import javax.annotation.PostConstruct

@CompileStatic
@Component
class ApplicationUserInitializer {
    private static final Logger LOGGER = LoggerFactory.getLogger(ApplicationUserInitializer.class);

    private ApplicationUserRepository userRepository

    private ApplicationUserConfig applicationUserConfig

    private PasswordEncoder passwordEncoder

    @Autowired
    ApplicationUserInitializer(ApplicationUserRepository userRepository, ApplicationUserConfig applicationUserConfig, PasswordEncoder passwordEncoder) {
        this.userRepository = userRepository
        this.applicationUserConfig = applicationUserConfig
        this.passwordEncoder = passwordEncoder
    }

    @PostConstruct
    void init() throws Exception {
        LOGGER.info("Synchronizing {}", applicationUserConfig.toString())
        checkForDuplicatedApplicationUserConfigurations()
        synchronizeApplicationUsers()
    }

    void checkForDuplicatedApplicationUserConfigurations() {
        def duplicatedUserConfigurations = applicationUserConfig.platformUsers.findAll { configUser ->
            applicationUserConfig.platformUsers.findAll { it -> it.username == configUser.username }.size() > 1
        }

        if (duplicatedUserConfigurations.size() > 0) {
            throw new IllegalStateException("Duplicated application users defined - ${duplicatedUserConfigurations}")
        }
    }

    void disableApplicationUser(ApplicationUser user) {
        if (user.enabled) {
            user.enabled = false
            userRepository.saveAndFlush(user)
        }
    }

    void synchronizeApplicationUsers() {
        def allDbUser = userRepository.findAll()

        applicationUserConfig.platformUsers.each {
            configUser ->
                def dbUser = allDbUser.find { user -> user.username == configUser.username }
                if (dbUser == null) {
                    addApplicationUser(configUser.platformId, configUser)
                } else {
                    synchronizeApplicationUser(dbUser, configUser)
                    allDbUser.remove(dbUser)
                }
        }

        allDbUser.each { oldUser -> disableApplicationUser(oldUser) }
    }

    void synchronizeApplicationUser(ApplicationUser user, UserConfig userConfig) {
        def changed = false

        if (user.password != passwordEncoder.encode(userConfig.password)) {
            user.password = passwordEncoder.encode(userConfig.password)
            changed = true
        }

        if (user.role != userConfig.role) {
            user.role = userConfig.role
            changed = true
        }

        if (user.platformGuid != userConfig.platformId) {
            user.platformGuid = userConfig.platformId
            changed = true
        }

        if (!user.enabled) {
            user.enabled = true
            changed = true
        }

        if (changed) {
            userRepository.saveAndFlush(user)
        }
    }

    void addApplicationUser(String platformGuid, UserConfig userConfig) {
        def user = new ApplicationUser()
        user.username = userConfig.username
        user.password = passwordEncoder.encode(userConfig.password)
        user.enabled = true
        user.role = userConfig.role
        user.platformGuid = platformGuid
        userRepository.saveAndFlush(user)
    }
}