100 lines
4.1 KiB
Kotlin
100 lines
4.1 KiB
Kotlin
/*
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* Copyright (c) 2020, 2021 The Web eID Project
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package com.tarkvaratehnika.demobackend.security
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import org.webeid.security.certificate.CertificateData
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import org.springframework.security.core.Authentication
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import org.springframework.security.core.GrantedAuthority
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import org.springframework.security.core.authority.SimpleGrantedAuthority
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import org.springframework.security.web.authentication.preauth.PreAuthenticatedAuthenticationToken
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import java.security.cert.X509Certificate
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import java.util.*
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import java.util.concurrent.ThreadLocalRandom
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import kotlin.collections.ArrayList
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import kotlin.math.log
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class WebEidAuthentication(
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private val principalName: String,
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private val idCode: String,
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private val authorities: ArrayList<GrantedAuthority>
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) : PreAuthenticatedAuthenticationToken(principalName, idCode, authorities), Authentication {
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// Companion object is for static functions.
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companion object {
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private val loggedInUsers = HashMap<String, Authentication>()
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fun fromCertificate(
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userCertificate: X509Certificate,
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authorities: ArrayList<GrantedAuthority>,
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challenge: String
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): Authentication {
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val principalName = getPrincipalNameFromCertificate(userCertificate)
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val idCode = Objects.requireNonNull(CertificateData.getSubjectIdCode(userCertificate))
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val authentication = WebEidAuthentication(principalName, idCode, authorities)
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loggedInUsers[challenge] = authentication
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return authentication
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}
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/**
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* Function for getting a Spring authentication object by supplying a challenge.
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* TODO: Figure out a more secure solution in the future.
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*/
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fun fromChallenge(challenge: String): Authentication? {
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// if (ThreadLocalRandom.current().nextFloat() < 0.5f) { // TODO: For testing.
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// return null
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// }
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val auth = loggedInUsers[challenge]
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if (auth != null) {
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// If challenge is valid, delete the authentication object from the map (so this can only be fetched once).
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loggedInUsers.remove(challenge)
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} else {
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return null
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}
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return auth
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}
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// // TODO: DELETE
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//
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// const val ROLE_USER: String = "ROLE_USER"
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// private val USER_ROLE: GrantedAuthority = SimpleGrantedAuthority(ROLE_USER)
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//
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// fun addAuth(challenge: String) {
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// val authorities = arrayListOf<GrantedAuthority>()
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// authorities.add(USER_ROLE)
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// val auth = WebEidAuthentication("Somename", "11111111111", authorities)
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// loggedInUsers[challenge] = auth
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// }
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//
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//
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// // TODO: DELETE UNTIL
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private fun getPrincipalNameFromCertificate(userCertificate: X509Certificate): String {
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return Objects.requireNonNull(CertificateData.getSubjectGivenName(userCertificate)) + " " +
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Objects.requireNonNull(CertificateData.getSubjectSurname(userCertificate))
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}
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}
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} |