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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.text.TextUtils;
import android.util.Pair;
import androidx.fragment.app.DialogFragment;
import androidx.preference.CheckBoxPreference;
import androidx.preference.EditTextPreference;
import androidx.preference.ListPreference;
import androidx.preference.Preference;
import androidx.preference.SwitchPreference;
import de.blinkt.openvpn.activities.FileSelect;
import de.blinkt.openvpn.R;
import de.blinkt.openvpn.core.VpnStatus;
import de.blinkt.openvpn.views.RemoteCNPreference;
import de.blinkt.openvpn.VpnProfile;
import de.blinkt.openvpn.views.RemoteCNPreferenceDialog;
import java.io.IOException;
public class Settings_Authentication extends OpenVpnPreferencesFragment implements Preference.OnPreferenceChangeListener, Preference.OnPreferenceClickListener {
private static final int SELECT_TLS_FILE_LEGACY_DIALOG = 10;
private static final int SELECT_TLS_FILE_KITKAT = SELECT_TLS_FILE_LEGACY_DIALOG + 1;
private CheckBoxPreference mExpectTLSCert;
private CheckBoxPreference mCheckRemoteCN;
private RemoteCNPreference mRemoteCN;
private ListPreference mTLSAuthDirection;
private Preference mTLSAuthFile;
private SwitchPreference mUseTLSAuth;
private EditTextPreference mDataCiphers;
private String mTlsAuthFileData;
private EditTextPreference mAuth;
private EditTextPreference mRemoteX509Name;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Load the preferences from an XML resource
addPreferencesFromResource(R.xml.vpn_authentification);
mExpectTLSCert = findPreference("remoteServerTLS");
mCheckRemoteCN = (CheckBoxPreference) findPreference("checkRemoteCN");
mRemoteCN = (RemoteCNPreference) findPreference("remotecn");
mRemoteCN.setOnPreferenceChangeListener(this);
mRemoteX509Name = (EditTextPreference) findPreference("remotex509name");
mRemoteX509Name.setOnPreferenceChangeListener(this);
mUseTLSAuth = (SwitchPreference) findPreference("useTLSAuth");
mTLSAuthFile = findPreference("tlsAuthFile");
mTLSAuthDirection = (ListPreference) findPreference("tls_direction");
mTLSAuthFile.setOnPreferenceClickListener(this);
mDataCiphers = (EditTextPreference) findPreference("dataciphers");
mDataCiphers.setOnPreferenceChangeListener(this);
mAuth = (EditTextPreference) findPreference("auth");
mAuth.setOnPreferenceChangeListener(this);
loadSettings();
}
@Override
public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
}
@Override
protected void loadSettings() {
mExpectTLSCert.setChecked(mProfile.mExpectTLSCert);
mCheckRemoteCN.setChecked(mProfile.mCheckRemoteCN);
mRemoteCN.setDN(mProfile.mRemoteCN);
mRemoteCN.setAuthType(mProfile.mX509AuthType);
onPreferenceChange(mRemoteCN,
new Pair<Integer, String>(mProfile.mX509AuthType, mProfile.mRemoteCN));
mRemoteX509Name.setText(mProfile.mx509UsernameField);
onPreferenceChange(mRemoteX509Name, mProfile.mx509UsernameField);
mUseTLSAuth.setChecked(mProfile.mUseTLSAuth);
mTlsAuthFileData = mProfile.mTLSAuthFilename;
setTlsAuthSummary(mTlsAuthFileData);
mTLSAuthDirection.setValue(mProfile.mTLSAuthDirection);
mDataCiphers.setText(mProfile.mDataCiphers);
onPreferenceChange(mDataCiphers, mProfile.mDataCiphers);
mAuth.setText(mProfile.mAuth);
onPreferenceChange(mAuth, mProfile.mAuth);
if (mProfile.mAuthenticationType == VpnProfile.TYPE_STATICKEYS) {
mExpectTLSCert.setEnabled(false);
mCheckRemoteCN.setEnabled(false);
mUseTLSAuth.setChecked(true);
} else {
mExpectTLSCert.setEnabled(true);
mCheckRemoteCN.setEnabled(true);
}
}
@Override
protected void saveSettings() {
mProfile.mExpectTLSCert = mExpectTLSCert.isChecked();
mProfile.mCheckRemoteCN = mCheckRemoteCN.isChecked();
mProfile.mRemoteCN = mRemoteCN.getCNText();
mProfile.mX509AuthType = mRemoteCN.getAuthtype();
mProfile.mUseTLSAuth = mUseTLSAuth.isChecked();
mProfile.mTLSAuthFilename = mTlsAuthFileData;
mProfile.mx509UsernameField = mRemoteX509Name.getText();
if (mTLSAuthDirection.getValue() == null)
mProfile.mTLSAuthDirection = null;
else
mProfile.mTLSAuthDirection = mTLSAuthDirection.getValue();
if (mDataCiphers.getText() == null)
mProfile.mDataCiphers = null;
else
mProfile.mDataCiphers = mDataCiphers.getText();
if (mAuth.getText() == null)
mProfile.mAuth = null;
else
mProfile.mAuth = mAuth.getText();
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
if (preference == mRemoteCN) {
@SuppressWarnings("unchecked")
int authtype = ((Pair<Integer, String>) newValue).first;
@SuppressWarnings("unchecked")
String dn = ((Pair<Integer, String>) newValue).second;
if ("".equals(dn)) {
if (mProfile.mConnections.length > 0) {
preference.setSummary(getX509String(VpnProfile.X509_VERIFY_TLSREMOTE_RDN, mProfile.mConnections[0].mServerName));
} else {
preference.setSummary(R.string.no_remote_defined);
}
} else {
preference.setSummary(getX509String(authtype, dn));
}
} else if (preference == mDataCiphers || preference == mAuth) {
preference.setSummary((CharSequence) newValue);
} else if (preference == mRemoteX509Name) {
preference.setSummary(TextUtils.isEmpty((CharSequence) newValue) ? "CN (default)" : (CharSequence) newValue);
}
return true;
}
private CharSequence getX509String(int authtype, String dn) {
String ret = "";
switch (authtype) {
case VpnProfile.X509_VERIFY_TLSREMOTE:
case VpnProfile.X509_VERIFY_TLSREMOTE_COMPAT_NOREMAPPING:
ret += "tls-remote ";
break;
case VpnProfile.X509_VERIFY_TLSREMOTE_DN:
ret = "dn: ";
break;
case VpnProfile.X509_VERIFY_TLSREMOTE_RDN:
ret = "rdn: ";
break;
case VpnProfile.X509_VERIFY_TLSREMOTE_RDN_PREFIX:
ret = "rdn prefix: ";
break;
}
return ret + dn;
}
void startFileDialog() {
Intent startFC = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && !Utils.alwaysUseOldFileChooser(getActivity())) {
startFC = Utils.getFilePickerIntent(getActivity(), Utils.FileType.TLS_AUTH_FILE);
startActivityForResult(startFC, SELECT_TLS_FILE_KITKAT);
}
if (startFC == null) {
startFC = new Intent(getActivity(), FileSelect.class);
startFC.putExtra(FileSelect.START_DATA, mTlsAuthFileData);
startFC.putExtra(FileSelect.WINDOW_TITLE, R.string.tls_auth_file);
startActivityForResult(startFC, SELECT_TLS_FILE_LEGACY_DIALOG);
}
}
@Override
public boolean onPreferenceClick(Preference preference) {
startFileDialog();
return true;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == SELECT_TLS_FILE_LEGACY_DIALOG && resultCode == Activity.RESULT_OK) {
String result = data.getStringExtra(FileSelect.RESULT_DATA);
mTlsAuthFileData = result;
setTlsAuthSummary(result);
} else if (requestCode == SELECT_TLS_FILE_KITKAT && resultCode == Activity.RESULT_OK) {
try {
mTlsAuthFileData = Utils.getFilePickerResult(Utils.FileType.TLS_AUTH_FILE, data, getActivity());
setTlsAuthSummary(mTlsAuthFileData);
} catch (IOException e) {
VpnStatus.logException(e);
} catch (SecurityException se) {
VpnStatus.logException(se);
}
}
}
private void setTlsAuthSummary(String 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.setSummary(getString(R.string.imported_from_file, VpnProfile.getDisplayName(result)));
else
mTLSAuthFile.setSummary(result);
}
@Override
public void onDisplayPreferenceDialog(Preference preference) {
DialogFragment dialogFragment = null;
if (preference instanceof RemoteCNPreference) {
dialogFragment = RemoteCNPreferenceDialog.newInstance(preference.getKey());
}
if (dialogFragment != null) {
dialogFragment.setTargetFragment(this, 0);
dialogFragment.show(requireFragmentManager(), "RemoteCNDialog");
} else {
super.onDisplayPreferenceDialog(preference);
}
}
}
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