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Code Issues Releases Wiki Activity

Never crash if there is a problem in isOnMobileNetwork

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This commit is contained in:
Albert Vaca
2017-05-24 00:29:33 +02:00
parent 82b42fda67
commit 124a971a1f
1 changed files with 31 additions and 26 deletions
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57
src/org/kde/kdeconnect/Helpers/NetworkHelper.java
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@@ -18,34 +18,39 @@ public class NetworkHelper {
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.LOLLIPOP) {
return false; //No good way to know it
}
boolean mobile = false;
final ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
Network[] networks = connMgr.getAllNetworks();
for (Network network : networks) {
NetworkInfo info = connMgr.getNetworkInfo(network);
if (info == null) {
continue;
}
if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
mobile = info.isConnected();
continue;
}
//Log.e(info.getTypeName(),""+info.isAvailable());
if (info.isAvailable()) return false; //We are connected to at least one non-mobile network
}
if (mobile) { //We suspect we are on a mobile net
try {
//Check the number of network neighbours, on data it should be 0
LineNumberReader is = new LineNumberReader(new FileReader("/proc/net/arp"));
is.skip(Long.MAX_VALUE);
//Log.e("NetworkHelper", "procnetarp has " + is.getLineNumber() + " lines");
if (is.getLineNumber() > 1) { //The first line are the headers
return false; //I have neighbours, so this doesn't look like a mobile network
try {
boolean mobile = false;
final ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
Network[] networks = connMgr.getAllNetworks();
for (Network network : networks) {
NetworkInfo info = connMgr.getNetworkInfo(network);
if (info == null) {
continue;
}
} catch (Exception e) {
Log.e("NetworkHelper", "Exception reading procnetarp");
e.printStackTrace();
if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
mobile = info.isConnected();
continue;
}
//Log.e(info.getTypeName(),""+info.isAvailable());
if (info.isAvailable()) return false; //We are connected to at least one non-mobile network
}
if (mobile) { //We suspect we are on a mobile net
try {
//Check the number of network neighbours, on data it should be 0
LineNumberReader is = new LineNumberReader(new FileReader("/proc/net/arp"));
is.skip(Long.MAX_VALUE);
//Log.e("NetworkHelper", "procnetarp has " + is.getLineNumber() + " lines");
if (is.getLineNumber() > 1) { //The first line are the headers
return false; //I have neighbours, so this doesn't look like a mobile network
}
} catch (Exception e) {
Log.e("NetworkHelper", "Exception reading procnetarp");
e.printStackTrace();
}
}
} catch(Exception e) {
e.printStackTrace();
Log.d("isOnMobileNetwork", "Something went wrong, but this is non-critical.");
}
return false;
}