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/*
* Copyright (c) 2012-2016 Arne Schwabe
* Distributed under the GNU GPL v2 with additional terms. For full terms see the file doc/LICENSE.txt
*/
package de.blinkt.openvpn.fragments
import android.app.Activity
import android.content.Intent
import android.os.Build
import android.os.Bundle
import android.util.Pair
import androidx.activity.result.ActivityResult
import androidx.activity.result.ActivityResultLauncher
import androidx.activity.result.contract.ActivityResultContracts
import androidx.fragment.app.DialogFragment
import androidx.preference.*
import de.blinkt.openvpn.R
import de.blinkt.openvpn.VpnProfile
import de.blinkt.openvpn.activities.FileSelect
import de.blinkt.openvpn.core.VpnStatus
import de.blinkt.openvpn.fragments.Utils.alwaysUseOldFileChooser
import de.blinkt.openvpn.fragments.Utils.getFilePickerIntent
import de.blinkt.openvpn.fragments.Utils.getFilePickerResult
import de.blinkt.openvpn.views.RemoteCNPreference
import de.blinkt.openvpn.views.RemoteCNPreferenceDialog
import java.io.IOException
class Settings_Authentication : OpenVpnPreferencesFragment(), Preference.OnPreferenceClickListener {
private lateinit var handleFileSelectResult: ActivityResultLauncher<Intent>
private lateinit var handleSystemChooserResult: ActivityResultLauncher<Intent>
private lateinit var mExpectTLSCert: CheckBoxPreference
private lateinit var mCheckRemoteCN: CheckBoxPreference
private lateinit var mRemoteCN: RemoteCNPreference
private lateinit var mTLSAuthDirection: ListPreference
private lateinit var mTLSAuthFile: Preference
private lateinit var mUseTLSAuth: SwitchPreference
private lateinit var mDataCiphers: EditTextPreference
private var mTlsAuthFileData: String? = null
private lateinit var mAuth: EditTextPreference
private lateinit var mRemoteX509Name: EditTextPreference
private lateinit var mTLSProfile: ListPreference
override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
// Load the preferences from an XML resource
addPreferencesFromResource(R.xml.vpn_authentification)
mExpectTLSCert = findPreference("remoteServerTLS")!!
mCheckRemoteCN = findPreference("checkRemoteCN")!!
mRemoteCN = findPreference("remotecn")!!
setRemoteCNSummaryProvider()
mRemoteX509Name = findPreference("remotex509name")!!
mRemoteX509Name.setSummaryProvider { pref ->
if ((pref as EditTextPreference).text.isEmpty()) "CN (default)" else pref.text
}
mUseTLSAuth = findPreference("useTLSAuth")!!
mTLSAuthFile = findPreference("tlsAuthFile")!!
mTLSAuthFile.onPreferenceClickListener = this
mTLSAuthDirection = findPreference("tls_direction")!!
mDataCiphers = findPreference("dataciphers")!!
mAuth = findPreference("auth")!!
mTLSProfile = findPreference("tls_profile")!!
createActivityResultHandlers()
loadSettings()
}
override fun loadSettings() {
mExpectTLSCert.isChecked = mProfile.mExpectTLSCert
mCheckRemoteCN.isChecked = mProfile.mCheckRemoteCN
mRemoteCN.setDN(mProfile.mRemoteCN)
mRemoteCN.setAuthType(mProfile.mX509AuthType)
mRemoteX509Name.text = mProfile.mx509UsernameField ?: ""
mUseTLSAuth.isChecked = mProfile.mUseTLSAuth
mTlsAuthFileData = mProfile.mTLSAuthFilename
setTlsAuthSummary(mTlsAuthFileData)
mTLSAuthDirection.value = mProfile.mTLSAuthDirection
mDataCiphers.text = mProfile.mDataCiphers
mAuth.text = mProfile.mAuth
if (mProfile.mAuthenticationType == VpnProfile.TYPE_STATICKEYS) {
mExpectTLSCert.isEnabled = false
mCheckRemoteCN.isEnabled = false
mUseTLSAuth.isChecked = true
} else {
mExpectTLSCert.isEnabled = true
mCheckRemoteCN.isEnabled = true
}
if (mProfile.mTlSCertProfile.isNullOrBlank())
mTLSProfile.value = "legacy"
else
mTLSProfile.value = mProfile.mTlSCertProfile
}
override fun saveSettings() {
mProfile.mExpectTLSCert = mExpectTLSCert.isChecked
mProfile.mCheckRemoteCN = mCheckRemoteCN.isChecked
mProfile.mRemoteCN = mRemoteCN.cnText
mProfile.mX509AuthType = mRemoteCN.authtype
mProfile.mUseTLSAuth = mUseTLSAuth.isChecked
mProfile.mTLSAuthFilename = mTlsAuthFileData
mProfile.mx509UsernameField = mRemoteX509Name.text
mProfile.mTLSAuthDirection = mTLSAuthDirection.value
mProfile.mDataCiphers = mDataCiphers.text
mProfile.mAuth = mAuth.text
mProfile.mTlSCertProfile = mTLSProfile.value
}
private fun setRemoteCNSummaryProvider()
{
mRemoteCN.setSummaryProvider {
pref ->
pref as RemoteCNPreference;
if ("" == pref.cnText) {
if (mProfile.mConnections.size > 0) {
return@setSummaryProvider getX509String(VpnProfile.X509_VERIFY_TLSREMOTE_RDN,
mProfile.mConnections[0].mServerName
)
} else {
return@setSummaryProvider getString(R.string.no_remote_defined)
}
} else {
return@setSummaryProvider getX509String(pref.authtype, pref.cnText)
}
}
}
private fun getX509String(authtype: Int, dn: String): CharSequence {
var ret = ""
when (authtype) {
VpnProfile.X509_VERIFY_TLSREMOTE, VpnProfile.X509_VERIFY_TLSREMOTE_COMPAT_NOREMAPPING -> ret += "tls-remote "
VpnProfile.X509_VERIFY_TLSREMOTE_DN -> ret = "dn: "
VpnProfile.X509_VERIFY_TLSREMOTE_RDN -> ret = "rdn: "
VpnProfile.X509_VERIFY_TLSREMOTE_RDN_PREFIX -> ret = "rdn prefix: "
}
return ret + dn
}
fun createActivityResultHandlers()
{
handleSystemChooserResult = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result: ActivityResult ->
if (result.resultCode == Activity.RESULT_OK)
try {
mTlsAuthFileData =
getFilePickerResult(
Utils.FileType.TLS_AUTH_FILE,
result.data,
requireContext()
)
setTlsAuthSummary(mTlsAuthFileData)
} catch (e: IOException) {
VpnStatus.logException(e)
} catch (se: SecurityException) {
VpnStatus.logException(se)
}
}
handleFileSelectResult = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result: ActivityResult ->
val resData = result.data?.getStringExtra(FileSelect.RESULT_DATA)
mTlsAuthFileData = resData
setTlsAuthSummary(resData)
}
}
fun startFileDialog() {
var startFC: Intent? = null
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && !alwaysUseOldFileChooser(activity)) {
startFC = getFilePickerIntent(requireContext(), Utils.FileType.TLS_AUTH_FILE)
if (startFC != null)
handleSystemChooserResult.launch(startFC)
}
if (startFC == null) {
startFC = Intent(activity, FileSelect::class.java)
startFC.putExtra(FileSelect.START_DATA, mTlsAuthFileData)
startFC.putExtra(FileSelect.WINDOW_TITLE, R.string.tls_auth_file)
handleFileSelectResult.launch(startFC)
}
}
override fun onPreferenceClick(preference: Preference): Boolean {
startFileDialog()
return true
}
private fun setTlsAuthSummary(result: String?) {
var result = result
if (result == null)
result = getString(R.string.no_certificate)
if (result.startsWith(VpnProfile.INLINE_TAG))
mTLSAuthFile.setSummary(R.string.inline_file_data)
else if (result.startsWith(VpnProfile.DISPLAYNAME_TAG))
mTLSAuthFile.summary =
getString(R.string.imported_from_file, VpnProfile.getDisplayName(result))
else
mTLSAuthFile.summary = result
}
override fun onDisplayPreferenceDialog(preference: Preference) {
var dialogFragment: DialogFragment? = null
if (preference is RemoteCNPreference) {
dialogFragment = RemoteCNPreferenceDialog.newInstance(preference.getKey())
}
if (dialogFragment != null) {
dialogFragment.setTargetFragment(this, 0)
dialogFragment.show(parentFragmentManager, "RemoteCNDialog")
} else {
super.onDisplayPreferenceDialog(preference)
}
}
}
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