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Code Issues Releases Wiki Activity

Check for connectivity changes

This commit is contained in:
M66B 2020-07-15 20:41:58 +02:00
parent a6a7c43c14
commit b184a2f344
1 changed files with 84 additions and 54 deletions
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122
app/src/main/java/eu/faircode/email/ServiceSynchronize.java
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@ -1693,77 +1693,106 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
}
private ConnectivityManager.NetworkCallback networkCallback = new ConnectivityManager.NetworkCallback() {
private Boolean last4 = null;
private Boolean last6 = null;
private NetworkCapabilities lastActiveCaps = null;
private LinkProperties lastActiveProps = null;
@Override
public void onAvailable(@NonNull Network network) {
try {
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo ni = cm.getNetworkInfo(network);
NetworkCapabilities caps = cm.getNetworkCapabilities(network);
// Transition from metered to unmetered?
boolean transition = false;
if (caps != null &&
caps.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VPN) &&
caps.hasCapability((NetworkCapabilities.NET_CAPABILITY_NOT_METERED))) {
Network[] networks = cm.getAllNetworks();
for (Network other : networks)
if (!network.equals(other)) {
NetworkCapabilities c = cm.getNetworkCapabilities(other);
if (c != null &&
c.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VPN) &&
!c.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED)) {
transition = true;
break;
}
}
}
EntityLog.log(ServiceSynchronize.this,
"Available network=" + network + " info=" + ni + " caps=" + caps + " transition=" + transition);
if (transition)
reload(ServiceSynchronize.this, -1L, false, "unmetered");
NetworkInfo ani = cm.getActiveNetworkInfo();
EntityLog.log(ServiceSynchronize.this, "Available network=" + network + " info=" + ni + " active=" + ani);
} catch (Throwable ex) {
Log.w(ex);
}
updateState(network, null);
}
@Override
public void onCapabilitiesChanged(@NonNull Network network, @NonNull NetworkCapabilities capabilities) {
updateState(network, capabilities);
public void onCapabilitiesChanged(@NonNull Network network, @NonNull NetworkCapabilities caps) {
updateState(network, caps);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
try {
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
Network active = cm.getActiveNetwork();
if (active != null && active.equals(network)) {
boolean reload = (lastActiveCaps != null &&
caps.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VPN) &&
caps.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) &&
lastActiveCaps.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VPN) &&
!lastActiveCaps.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED));
if (reload || BuildConfig.DEBUG)
EntityLog.log(ServiceSynchronize.this, "Connectivity changed " + network +
" caps=" + caps + " reload=" + reload);
if (reload)
reload(ServiceSynchronize.this, -1L, false, "unmetered");
lastActiveCaps = caps;
}
} catch (Throwable ex) {
Log.e(ex);
}
}
@Override
public void onLinkPropertiesChanged(@NonNull Network network, @NonNull LinkProperties properties) {
public void onLinkPropertiesChanged(@NonNull Network network, @NonNull LinkProperties props) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
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()) {
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
Network active = cm.getActiveNetwork();
if (active != null && active.equals(network)) {
boolean ahas4 = false;
boolean ahas6 = false;
boolean lhas4 = false;
boolean lhas6 = false;
if (lastActiveProps != null) {
String aname = props.getInterfaceName();
String lname = lastActiveProps.getInterfaceName();
if (!TextUtils.isEmpty(aname) && !TextUtils.isEmpty(lname)) {
NetworkInterface aintf = NetworkInterface.getByName(aname);
NetworkInterface lintf = NetworkInterface.getByName(lname);
if (aintf != null && lintf != null) {
for (InterfaceAddress iaddr : aintf.getInterfaceAddresses()) {
InetAddress addr = iaddr.getAddress();
if (!addr.isLoopbackAddress() && !addr.isLinkLocalAddress())
if (addr instanceof Inet4Address)
has4 = true;
ahas4 = true;
else if (addr instanceof Inet6Address)
has6 = true;
ahas6 = 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");
for (InterfaceAddress iaddr : lintf.getInterfaceAddresses()) {
InetAddress addr = iaddr.getAddress();
if (!addr.isLoopbackAddress() && !addr.isLinkLocalAddress())
if (addr instanceof Inet4Address)
lhas4 = true;
else if (addr instanceof Inet6Address)
lhas6 = true;
}
}
}
}
boolean reload = ((ahas4 && !lhas4) || (ahas6 && !lhas6));
if (reload || BuildConfig.DEBUG)
EntityLog.log(ServiceSynchronize.this, "Connectivity changed " + network +
" props=" + props + " reload=" + reload);
if (reload)
reload(ServiceSynchronize.this, -1L, false, "connectivity");
lastActiveProps = props;
}
last4 = has4;
last6 = has6;
} catch (Throwable ex) {
Log.w(ex);
Log.e(ex);
}
}
@ -1778,6 +1807,7 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
} catch (Throwable ex) {
Log.w(ex);
}
updateState(network, null);
}