From b79fd315dd89e7a9f648c6a500b41ce7d9970081 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Parm=C3=A9nides=20GV?= Date: Wed, 14 May 2014 20:05:30 +0200 Subject: Copy all java files from ics-openvpn. imports from se.leap.bitmaskclient java files have also been updated. WARNING: compiling errors for de.blinkt.openvpn.R, aidl.de.blinkt.openvpn. --- .../blinkt/openvpn/core/DeviceStateReceiver.java | 243 +++++++++++++++++++++ 1 file changed, 243 insertions(+) create mode 100644 app/src/main/java/de/blinkt/openvpn/core/DeviceStateReceiver.java (limited to 'app/src/main/java/de/blinkt/openvpn/core/DeviceStateReceiver.java') diff --git a/app/src/main/java/de/blinkt/openvpn/core/DeviceStateReceiver.java b/app/src/main/java/de/blinkt/openvpn/core/DeviceStateReceiver.java new file mode 100644 index 00000000..41e8ff0a --- /dev/null +++ b/app/src/main/java/de/blinkt/openvpn/core/DeviceStateReceiver.java @@ -0,0 +1,243 @@ +package de.blinkt.openvpn.core; + +import android.content.BroadcastReceiver; +import android.content.Context; +import android.content.Intent; +import android.content.SharedPreferences; +import android.net.ConnectivityManager; +import android.net.NetworkInfo; +import android.net.NetworkInfo.State; +import android.preference.PreferenceManager; +import de.blinkt.openvpn.R; +import de.blinkt.openvpn.core.VpnStatus.ByteCountListener; + +import java.util.LinkedList; + +import static de.blinkt.openvpn.core.OpenVPNManagement.pauseReason; + +public class DeviceStateReceiver extends BroadcastReceiver implements ByteCountListener { + private int lastNetwork = -1; + private OpenVPNManagement mManagement; + + // Window time in s + private final int TRAFFIC_WINDOW = 60; + // Data traffic limit in bytes + private final long TRAFFIC_LIMIT = 64 * 1024; + + + connectState network = connectState.DISCONNECTED; + connectState screen = connectState.SHOULDBECONNECTED; + connectState userpause = connectState.SHOULDBECONNECTED; + + private String lastStateMsg = null; + + enum connectState { + SHOULDBECONNECTED, + PENDINGDISCONNECT, + DISCONNECTED + } + + static class Datapoint { + private Datapoint(long t, long d) { + timestamp = t; + data = d; + } + + long timestamp; + long data; + } + + LinkedList trafficdata = new LinkedList(); + + @Override + public void updateByteCount(long in, long out, long diffIn, long diffOut) { + if (screen != connectState.PENDINGDISCONNECT) + return; + + long total = diffIn + diffOut; + trafficdata.add(new Datapoint(System.currentTimeMillis(), total)); + + while (trafficdata.getFirst().timestamp <= (System.currentTimeMillis() - TRAFFIC_WINDOW * 1000)) { + trafficdata.removeFirst(); + } + + long windowtraffic = 0; + for (Datapoint dp : trafficdata) + windowtraffic += dp.data; + + if (windowtraffic < TRAFFIC_LIMIT) { + screen = connectState.DISCONNECTED; + VpnStatus.logInfo(R.string.screenoff_pause, + OpenVpnService.humanReadableByteCount(TRAFFIC_LIMIT, false), TRAFFIC_WINDOW); + + mManagement.pause(getPauseReason()); + } + } + + + public void userPause(boolean pause) { + if (pause) { + userpause = connectState.DISCONNECTED; + // Check if we should disconnect + mManagement.pause(getPauseReason()); + } else { + boolean wereConnected = shouldBeConnected(); + userpause = connectState.SHOULDBECONNECTED; + if (shouldBeConnected() && !wereConnected) + mManagement.resume(); + else + // Update the reason why we currently paused + mManagement.pause(getPauseReason()); + } + } + + public DeviceStateReceiver(OpenVPNManagement magnagement) { + super(); + mManagement = magnagement; + } + + + @Override + public void onReceive(Context context, Intent intent) { + SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); + + + if (ConnectivityManager.CONNECTIVITY_ACTION.equals(intent.getAction())) { + networkStateChange(context); + } else if (Intent.ACTION_SCREEN_OFF.equals(intent.getAction())) { + boolean screenOffPause = prefs.getBoolean("screenoff", false); + + if (screenOffPause) { + if (ProfileManager.getLastConnectedVpn()!=null && !ProfileManager.getLastConnectedVpn().mPersistTun) + VpnStatus.logError(R.string.screen_nopersistenttun); + + screen = connectState.PENDINGDISCONNECT; + fillTrafficData(); + if (network == connectState.DISCONNECTED || userpause == connectState.DISCONNECTED) + screen = connectState.DISCONNECTED; + } + } else if (Intent.ACTION_SCREEN_ON.equals(intent.getAction())) { + // Network was disabled because screen off + boolean connected = shouldBeConnected(); + screen = connectState.SHOULDBECONNECTED; + + /* should be connected has changed because the screen is on now, connect the VPN */ + if (shouldBeConnected() != connected) + mManagement.resume(); + else if (!shouldBeConnected()) + /*Update the reason why we are still paused */ + mManagement.pause(getPauseReason()); + + } + } + + + private void fillTrafficData() { + trafficdata.add(new Datapoint(System.currentTimeMillis(), TRAFFIC_LIMIT)); + } + + + public void networkStateChange(Context context) { + NetworkInfo networkInfo = getCurrentNetworkInfo(context); + SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context); + boolean sendusr1 = prefs.getBoolean("netchangereconnect", true); + + + String netstatestring; + if (networkInfo == null) { + netstatestring = "not connected"; + } else { + String subtype = networkInfo.getSubtypeName(); + if (subtype == null) + subtype = ""; + String extrainfo = networkInfo.getExtraInfo(); + if (extrainfo == null) + extrainfo = ""; + + /* + if(networkInfo.getType()==android.net.ConnectivityManager.TYPE_WIFI) { + WifiManager wifiMgr = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); + WifiInfo wifiinfo = wifiMgr.getConnectionInfo(); + extrainfo+=wifiinfo.getBSSID(); + + subtype += wifiinfo.getNetworkId(); + }*/ + + + netstatestring = String.format("%2$s %4$s to %1$s %3$s", networkInfo.getTypeName(), + networkInfo.getDetailedState(), extrainfo, subtype); + } + + if (networkInfo != null && networkInfo.getState() == State.CONNECTED) { + int newnet = networkInfo.getType(); + network = connectState.SHOULDBECONNECTED; + + if (lastNetwork != newnet) { + if (screen == connectState.PENDINGDISCONNECT) + screen = connectState.DISCONNECTED; + + if (shouldBeConnected()) { + if (sendusr1) { + if (lastNetwork == -1) { + mManagement.resume(); + } else { + mManagement.reconnect(); + } + } else { + mManagement.networkChange(); + } + } + + + lastNetwork = newnet; + } + } else if (networkInfo == null) { + // Not connected, stop openvpn, set last connected network to no network + lastNetwork = -1; + if (sendusr1) { + network = connectState.DISCONNECTED; + + // Set screen state to be disconnected if disconnect pending + if (screen == connectState.PENDINGDISCONNECT) + screen = connectState.DISCONNECTED; + + mManagement.pause(getPauseReason()); + } + } + + + if (!netstatestring.equals(lastStateMsg)) + VpnStatus.logInfo(R.string.netstatus, netstatestring); + lastStateMsg = netstatestring; + + } + + public boolean isUserPaused() { + return userpause == connectState.DISCONNECTED; + } + + private boolean shouldBeConnected() { + return (screen == connectState.SHOULDBECONNECTED && userpause == connectState.SHOULDBECONNECTED && + network == connectState.SHOULDBECONNECTED); + } + + private pauseReason getPauseReason() { + if (userpause == connectState.DISCONNECTED) + return pauseReason.userPause; + + if (screen == connectState.DISCONNECTED) + return pauseReason.screenOff; + + if (network == connectState.DISCONNECTED) + return pauseReason.noNetwork; + + return pauseReason.userPause; + } + + private NetworkInfo getCurrentNetworkInfo(Context context) { + ConnectivityManager conn = (ConnectivityManager) + context.getSystemService(Context.CONNECTIVITY_SERVICE); + + return conn.getActiveNetworkInfo(); + } +} -- cgit v1.2.3