aries-common: Add sanity checking

Purpose: Verify the integrity of select things including the IMEI.
         The IMEI specifically, if invalid, could cause emergency
         calling issues (i.e. inability to call at all).

Warn the user if any issues are detected. Currently only the IMEI
is checked against the generic IMEI (004999010640000).

Change-Id: I8fb76b7535cc7110142b72892cf9d4fc1cbc25e7

3 files changed, 82 insertions, 0 deletions

diff --git a/AriesParts/src/com/cyanogenmod/settings/device/Sanity.java b/AriesParts/src/com/cyanogenmod/settings/device/Sanity.java
new file mode 100644
index 0000000..981b884
--- /dev/null
+++ b/AriesParts/src/com/cyanogenmod/settings/device/Sanity.java
@@ -0,0 +1,38 @@
+package com.cyanogenmod.settings.device;
+
+import android.content.Context;
+import android.content.Intent;
+import android.telephony.TelephonyManager;
+import android.util.Log;
+
+public class Sanity {
+    private static final String TAG = "AriesParts";
+    private static final String BAD_IMEI[] = {
+        "004999010640000"
+    };
+
+    public static void check(Context context) {
+        TelephonyManager tm = (TelephonyManager) context.getSystemService(
+                Context.TELEPHONY_SERVICE);
+        String id = tm.getDeviceId();
+        if (tm.getPhoneType() == TelephonyManager.PHONE_TYPE_GSM && !ensureIMEISanity(id)) {
+            Log.e(TAG, "Invalid IMEI!");
+            Intent intent = new Intent(context, WarnActivity.class);
+            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            intent.putExtra(WarnActivity.KEY_REASON, WarnActivity.REASON_INVALID_IMEI);
+            context.startActivity(intent);
+            return;
+        }
+        Log.d(TAG, "Device is sane.");
+    }
+
+    public static boolean ensureIMEISanity(String id) {
+        Log.d(TAG, "Current IMEI: " + id);
+        for (int j = 0; j < BAD_IMEI.length; j++) {
+            if (BAD_IMEI[j].equals(id)) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
diff --git a/AriesParts/src/com/cyanogenmod/settings/device/Startup.java b/AriesParts/src/com/cyanogenmod/settings/device/Startup.java
index 901f47e..924a95d 100644
--- a/AriesParts/src/com/cyanogenmod/settings/device/Startup.java
+++ b/AriesParts/src/com/cyanogenmod/settings/device/Startup.java
@@ -14,6 +14,7 @@ public class Startup extends BroadcastReceiver {
         Hspa.restore(context);
         VolumeBoostPreference.restore(context);
         DockAudio.restore(context);
+        Sanity.check(context);
     }
 
 }
diff --git a/AriesParts/src/com/cyanogenmod/settings/device/WarnActivity.java b/AriesParts/src/com/cyanogenmod/settings/device/WarnActivity.java
new file mode 100644
index 0000000..34488ee
--- /dev/null
+++ b/AriesParts/src/com/cyanogenmod/settings/device/WarnActivity.java
@@ -0,0 +1,43 @@
+package com.cyanogenmod.settings.device;
+
+import android.os.Bundle;
+import android.content.Intent;
+import android.app.Dialog;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.view.Window;
+import android.content.DialogInterface;
+import android.util.Log;
+
+public class WarnActivity extends Activity {
+    public static final String KEY_REASON = "sanity_reason";
+    public static final String REASON_INVALID_IMEI = "invalid_imei";
+
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+        requestWindowFeature(Window.FEATURE_NO_TITLE);
+
+        Bundle extras = getIntent().getExtras();
+        String reason = extras.getString(KEY_REASON);
+
+        if (REASON_INVALID_IMEI.equals(reason)) {
+            showInvalidImei();
+        }
+    }
+
+    private void showInvalidImei() {
+        new AlertDialog.Builder(this)
+                .setTitle(getString(R.string.imei_not_sane_title))
+                .setMessage(getString(R.string.imei_not_sane_message))
+                .setPositiveButton(getString(R.string.imei_not_sane_ok),
+                        new DialogInterface.OnClickListener() {
+                            public void onClick(DialogInterface dialog, int id) {
+                                dialog.cancel();
+                                finish();
+                            }
+                        })
+                .setCancelable(false)
+                .create().show();
+    }
+}