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Code Issues Releases Wiki Activity

Reload on losing IPv4 / IPv6 connectivity

This commit is contained in:
M66B 2020-07-14 21:12:35 +02:00
parent 8f05b1ad2e
commit 3383b73a90
1 changed files with 39 additions and 0 deletions
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39
app/src/main/java/eu/faircode/email/ServiceSynchronize.java
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@ -28,6 +28,7 @@ import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.net.ConnectivityManager;
import android.net.LinkProperties;
import android.net.Network;
import android.net.NetworkCapabilities;
import android.net.NetworkInfo;
@ -52,6 +53,11 @@ import androidx.preference.PreferenceManager;
import com.sun.mail.imap.IMAPFolder;
import com.sun.mail.imap.IMAPStore;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.InterfaceAddress;
import java.net.NetworkInterface;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Arrays;
@ -1687,6 +1693,9 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
}
private ConnectivityManager.NetworkCallback networkCallback = new ConnectivityManager.NetworkCallback() {
private Boolean last4 = null;
private Boolean last6 = null;
@Override
public void onAvailable(@NonNull Network network) {
try {
@ -1704,6 +1713,36 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
updateState(network, capabilities);
}
@Override
public void onLinkPropertiesChanged(@NonNull Network network, @NonNull LinkProperties properties) {
try {
// Monitor IP v4/v6 availability
boolean has4 = false;
boolean has6 = false;
String name = properties.getInterfaceName();
NetworkInterface ni = NetworkInterface.getByName(name);
if (ni != null)
for (InterfaceAddress iaddr : ni.getInterfaceAddresses()) {
InetAddress addr = iaddr.getAddress();
if (!addr.isLoopbackAddress() && !addr.isLinkLocalAddress())
if (addr instanceof Inet4Address)
has4 = true;
else if (addr instanceof Inet6Address)
has6 = true;
}
EntityLog.log(ServiceSynchronize.this,
"IP intf=" + name + "/" + ni.getDisplayName() + " v4=" + last4 + "/" + has4 + " v6=" + last6 + "/" + has6);
if ((last4 != null && last4 && !has4) || (last6 != null && last6 && !has6))
reload(ServiceSynchronize.this, -1L, false, "IP");
last4 = has4;
last6 = has6;
} catch (Throwable ex) {
Log.w(ex);
}
}
@Override
public void onLost(@NonNull Network network) {
try {