Restore legacy VPN stats dialog.

Was originally removed in ag/522961, but restoring to keep legacy VPN
behavior the same from within VpnSettings. This dialog is only
accesible from VpnSettings and so should only ever be shown for legacy
VPNs.

Bug: 17164793
Change-Id: I06c4e136e1023b8f84edfd15a15264d2e41d325b

1 files changed, 198 insertions, 0 deletions

diff --git a/packages/VpnDialogs/src/com/android/vpndialogs/ManageDialog.java b/packages/VpnDialogs/src/com/android/vpndialogs/ManageDialog.java
new file mode 100644
index 0000000..cc8500a
--- /dev/null
+++ b/packages/VpnDialogs/src/com/android/vpndialogs/ManageDialog.java
@@ -0,0 +1,198 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.vpndialogs;
+
+import android.content.Context;
+import android.content.DialogInterface;
+import android.net.IConnectivityManager;
+import android.os.Handler;
+import android.os.Message;
+import android.os.ServiceManager;
+import android.os.SystemClock;
+import android.util.Log;
+import android.view.View;
+import android.widget.TextView;
+
+import com.android.internal.app.AlertActivity;
+import com.android.internal.net.VpnConfig;
+
+import java.io.DataInputStream;
+import java.io.FileInputStream;
+
+public class ManageDialog extends AlertActivity implements
+        DialogInterface.OnClickListener, Handler.Callback {
+    private static final String TAG = "VpnManage";
+
+    private VpnConfig mConfig;
+
+    private IConnectivityManager mService;
+
+    private TextView mDuration;
+    private TextView mDataTransmitted;
+    private TextView mDataReceived;
+    private boolean mDataRowsHidden;
+
+    private Handler mHandler;
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        if (getCallingPackage() != null) {
+            Log.e(TAG, getCallingPackage() + " cannot start this activity");
+            finish();
+            return;
+        }
+
+        try {
+
+            mService = IConnectivityManager.Stub.asInterface(
+                    ServiceManager.getService(Context.CONNECTIVITY_SERVICE));
+
+            mConfig = mService.getVpnConfig();
+
+            // mConfig can be null if we are a restricted user, in that case don't show this dialog
+            if (mConfig == null) {
+                finish();
+                return;
+            }
+
+            View view = View.inflate(this, R.layout.manage, null);
+            if (mConfig.session != null) {
+                ((TextView) view.findViewById(R.id.session)).setText(mConfig.session);
+            }
+            mDuration = (TextView) view.findViewById(R.id.duration);
+            mDataTransmitted = (TextView) view.findViewById(R.id.data_transmitted);
+            mDataReceived = (TextView) view.findViewById(R.id.data_received);
+            mDataRowsHidden = true;
+
+            if (mConfig.legacy) {
+                mAlertParams.mTitle = getText(R.string.legacy_title);
+            } else {
+                mAlertParams.mTitle = VpnConfig.getVpnLabel(this, mConfig.user);
+            }
+            if (mConfig.configureIntent != null) {
+                mAlertParams.mPositiveButtonText = getText(R.string.configure);
+                mAlertParams.mPositiveButtonListener = this;
+            }
+            mAlertParams.mNeutralButtonText = getText(R.string.disconnect);
+            mAlertParams.mNeutralButtonListener = this;
+            mAlertParams.mNegativeButtonText = getText(android.R.string.cancel);
+            mAlertParams.mNegativeButtonListener = this;
+            mAlertParams.mView = view;
+            setupAlert();
+
+            if (mHandler == null) {
+                mHandler = new Handler(this);
+            }
+            mHandler.sendEmptyMessage(0);
+        } catch (Exception e) {
+            Log.e(TAG, "onResume", e);
+            finish();
+        }
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        if (!isFinishing()) {
+            finish();
+        }
+    }
+
+    @Override
+    public void onClick(DialogInterface dialog, int which) {
+        try {
+            if (which == DialogInterface.BUTTON_POSITIVE) {
+                mConfig.configureIntent.send();
+            } else if (which == DialogInterface.BUTTON_NEUTRAL) {
+                if (mConfig.legacy) {
+                    mService.prepareVpn(VpnConfig.LEGACY_VPN, VpnConfig.LEGACY_VPN);
+                } else {
+                    mService.prepareVpn(mConfig.user, VpnConfig.LEGACY_VPN);
+                }
+            }
+        } catch (Exception e) {
+            Log.e(TAG, "onClick", e);
+            finish();
+        }
+    }
+
+    @Override
+    public boolean handleMessage(Message message) {
+        mHandler.removeMessages(0);
+
+        if (!isFinishing()) {
+            if (mConfig.startTime != -1) {
+                long seconds = (SystemClock.elapsedRealtime() - mConfig.startTime) / 1000;
+                mDuration.setText(String.format("%02d:%02d:%02d",
+                        seconds / 3600, seconds / 60 % 60, seconds % 60));
+            }
+
+            String[] numbers = getNumbers();
+            if (numbers != null) {
+                // First unhide the related data rows.
+                if (mDataRowsHidden) {
+                    findViewById(R.id.data_transmitted_row).setVisibility(View.VISIBLE);
+                    findViewById(R.id.data_received_row).setVisibility(View.VISIBLE);
+                    mDataRowsHidden = false;
+                }
+
+                // [1] and [2] are received data in bytes and packets.
+                mDataReceived.setText(getString(R.string.data_value_format,
+                        numbers[1], numbers[2]));
+
+                // [9] and [10] are transmitted data in bytes and packets.
+                mDataTransmitted.setText(getString(R.string.data_value_format,
+                        numbers[9], numbers[10]));
+            }
+            mHandler.sendEmptyMessageDelayed(0, 1000);
+        }
+        return true;
+    }
+
+    private String[] getNumbers() {
+        DataInputStream in = null;
+        try {
+            // See dev_seq_printf_stats() in net/core/dev.c.
+            in = new DataInputStream(new FileInputStream("/proc/net/dev"));
+            String prefix = mConfig.interfaze + ':';
+
+            while (true) {
+                String line = in.readLine().trim();
+                if (line.startsWith(prefix)) {
+                    String[] numbers = line.substring(prefix.length()).split(" +");
+                    for (int i = 1; i < 17; ++i) {
+                        if (!numbers[i].equals("0")) {
+                            return numbers;
+                        }
+                    }
+                    break;
+                }
+            }
+        } catch (Exception e) {
+            // ignore
+        } finally {
+            try {
+                in.close();
+            } catch (Exception e) {
+                // ignore
+            }
+        }
+        return null;
+    }
+}