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Code Issues Packages Projects Releases Wiki Activity

Added mini connection checker

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This commit is contained in:
M66B
2023-11-09 19:06:23 +01:00
parent 962a62f1e0
commit 5bdbec77cb
4 changed files with 338 additions and 105 deletions
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134
app/src/main/java/eu/faircode/email/FragmentOptionsConnection.java
View File

@@ -46,6 +46,7 @@ import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.RadioGroup;
import android.widget.Spinner;
import android.widget.TextView;
@@ -58,6 +59,16 @@ import androidx.constraintlayout.widget.Group;
import androidx.lifecycle.Lifecycle;
import androidx.preference.PreferenceManager;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.security.cert.Certificate;
import java.security.cert.X509Certificate;
import javax.net.SocketFactory;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
public class FragmentOptionsConnection extends FragmentBase implements SharedPreferences.OnSharedPreferenceChangeListener {
private View view;
private ImageButton ibHelp;
@@ -86,6 +97,10 @@ public class FragmentOptionsConnection extends FragmentBase implements SharedPre
private TextView tvNetworkRoaming;
private CardView cardDebug;
private Button btnCiphers;
private EditText etHost;
private RadioGroup rgEncryption;
private EditText etPort;
private Button btnCheck;
private TextView tvNetworkInfo;
private Group grpValidated;
@@ -136,6 +151,10 @@ public class FragmentOptionsConnection extends FragmentBase implements SharedPre
cardDebug = view.findViewById(R.id.cardDebug);
btnCiphers = view.findViewById(R.id.btnCiphers);
etHost = view.findViewById(R.id.etHost);
rgEncryption = view.findViewById(R.id.rgEncryption);
etPort = view.findViewById(R.id.etPort);
btnCheck = view.findViewById(R.id.btnCheck);
tvNetworkInfo = view.findViewById(R.id.tvNetworkInfo);
grpValidated = view.findViewById(R.id.grpValidated);
@@ -359,6 +378,121 @@ public class FragmentOptionsConnection extends FragmentBase implements SharedPre
}
});
btnCheck.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String host = etHost.getText().toString().trim();
Integer port = Helper.parseInt(etPort.getText().toString().trim());
String encryption;
if (rgEncryption.getCheckedRadioButtonId() == R.id.radio_starttls)
encryption = "starttls";
else if (rgEncryption.getCheckedRadioButtonId() == R.id.radio_ssl)
encryption = "ssl";
else
encryption = "none";
int timeout = prefs.getInt("timeout", EmailService.DEFAULT_CONNECT_TIMEOUT) * 1000;
Bundle args = new Bundle();
args.putString("host", host);
args.putInt("port", port == null ? 0 : port);
args.putString("encryption", encryption);
args.putInt("timeout", timeout);
new SimpleTask<StringBuilder>() {
@Override
protected void onPreExecute(Bundle args) {
btnCheck.setEnabled(false);
}
@Override
protected void onPostExecute(Bundle args) {
btnCheck.setEnabled(true);
}
@Override
protected StringBuilder onExecute(Context context, Bundle args) throws Throwable {
String host = args.getString("host");
int port = args.getInt("port");
String encryption = args.getString("encryption");
int timeout = args.getInt("timeout");
StringBuilder sb = new StringBuilder();
sb.append("Host: ").append(host).append('\n');
sb.append("Port: ").append(port).append('\n');
sb.append("Encryption: ").append(encryption).append('\n');
InetSocketAddress address = new InetSocketAddress(host, port);
SocketFactory factory = (!"ssl".equals(encryption)
? SocketFactory.getDefault()
: SSLSocketFactory.getDefault());
try (Socket socket = factory.createSocket()) {
socket.connect(address, timeout);
socket.setSoTimeout(timeout);
if (!"none".equals(encryption)) {
SSLSocket sslSocket = null;
try {
if ("starttls".equals(encryption))
sslSocket = ConnectionHelper.starttls(socket, host, port, context);
else
sslSocket = (SSLSocket) socket;
sslSocket.startHandshake();
SSLSession session = sslSocket.getSession();
sb.append("Protocol: ").append(session.getProtocol()).append('\n');
sb.append("Cipher: ").append(session.getCipherSuite()).append('\n');
Certificate[] certificates = session.getPeerCertificates();
if (certificates != null)
for (Certificate certificate : certificates) {
if (certificate instanceof X509Certificate) {
X509Certificate x = (X509Certificate) certificate;
sb.append("Subject: ").append(x.getSubjectDN()).append('\n');
for (String dns : EntityCertificate.getDnsNames(x))
sb.append("DNS name: ").append(dns).append('\n');
}
}
} finally {
try {
if (sslSocket != null) {
ConnectionHelper.signOff(sslSocket, port, context);
sslSocket.close();
}
} catch (Throwable ex) {
Log.e(ex);
}
}
}
}
return sb;
}
@Override
protected void onExecuted(Bundle args, StringBuilder sb) {
new AlertDialog.Builder(getContext())
.setIcon(R.drawable.twotone_info_24)
.setTitle(R.string.title_advanced_section_connection)
.setMessage(sb)
.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// Do nothing
}
})
.show();
}
@Override
protected void onException(Bundle args, Throwable ex) {
Log.unexpectedError(getParentFragment(), ex);
}
}.execute(FragmentOptionsConnection.this, args, "connection:check");
}
});
// Initialize
FragmentDialogTheme.setBackground(getContext(), view, false);
tvNetworkMetered.setVisibility(View.GONE);