Fix lint security issues

src/main/java/com/todoroo/astrid/calls/PhoneStateChangedReceiver.java

@@ -20,6 +20,7 @@ import com.todoroo.andlib.utility.DateUtilities;
 import org.tasks.Notifier;
 import org.tasks.injection.BroadcastComponent;
 import org.tasks.injection.InjectingBroadcastReceiver;
+import org.tasks.preferences.PermissionChecker;
 import org.tasks.preferences.Preferences;
 
 import javax.inject.Inject;
@@ -34,6 +35,7 @@ public class PhoneStateChangedReceiver extends InjectingBroadcastReceiver {
 
     @Inject Preferences preferences;
     @Inject Notifier notifier;
+    @Inject PermissionChecker permissionChecker;
 
     @Override
     public void onReceive(final Context context, Intent intent) {
@@ -67,24 +69,12 @@ public class PhoneStateChangedReceiver extends InjectingBroadcastReceiver {
                     AndroidUtilities.sleepDeep(WAIT_BEFORE_READ_LOG);
                     Cursor calls;
                     try {
-                        calls = context.getContentResolver().query(
+                        calls = getMissedCalls(context);
-                            Calls.CONTENT_URI,
-                            new String[] { Calls.NUMBER, Calls.DATE, Calls.CACHED_NAME },
-                            Calls.TYPE + " = ? AND " + Calls.NEW + " = ?",
-                            new String[] { Integer.toString(Calls.MISSED_TYPE), "1" },
-                            Calls.DATE + " DESC"
-                            );
                     } catch (Exception e) { // Sometimes database is locked, retry once
                         Timber.e(e, e.getMessage());
                         AndroidUtilities.sleepDeep(300L);
                         try {
-                            calls = context.getContentResolver().query(
+                            calls = getMissedCalls(context);
-                                    Calls.CONTENT_URI,
-                                    new String[] { Calls.NUMBER, Calls.DATE, Calls.CACHED_NAME },
-                                    Calls.TYPE + " = ? AND " + Calls.NEW + " = ?",
-                                    new String[] { Integer.toString(Calls.MISSED_TYPE), "1" },
-                                    Calls.DATE + " DESC"
-                                    );
                         } catch (Exception e2) {
                             Timber.e(e2, e2.getMessage());
                             calls = null;
@@ -133,6 +123,20 @@ public class PhoneStateChangedReceiver extends InjectingBroadcastReceiver {
         }
     }
 
+    private Cursor getMissedCalls(Context context) {
+        if (permissionChecker.canAccessMissedCallPermissions()) {
+            //noinspection MissingPermission
+            return context.getContentResolver().query(
+                    Calls.CONTENT_URI,
+                    new String[]{Calls.NUMBER, Calls.DATE, Calls.CACHED_NAME},
+                    Calls.TYPE + " = ? AND " + Calls.NEW + " = ?",
+                    new String[]{Integer.toString(Calls.MISSED_TYPE), "1"},
+                    Calls.DATE + " DESC"
+            );
+        }
+        return null;
+    }
+
     @Override
     protected void inject(BroadcastComponent component) {
         component.inject(this);

src/main/java/com/todoroo/astrid/gcal/GCalHelper.java

@@ -21,6 +21,7 @@ import org.tasks.R;
 import org.tasks.calendars.AndroidCalendar;
 import org.tasks.calendars.CalendarProvider;
 import org.tasks.injection.ForApplication;
+import org.tasks.preferences.PermissionChecker;
 import org.tasks.preferences.Preferences;
 
 import java.util.TimeZone;
@@ -37,14 +38,16 @@ public class GCalHelper {
     private final TaskService taskService;
     private final Preferences preferences;
     private final CalendarProvider calendarProvider;
+    private PermissionChecker permissionChecker;
     private final ContentResolver cr;
 
     @Inject
     public GCalHelper(@ForApplication Context context, TaskService taskService, Preferences preferences,
-                      CalendarProvider calendarProvider) {
+                      CalendarProvider calendarProvider, PermissionChecker permissionChecker) {
         this.taskService = taskService;
         this.preferences = preferences;
         this.calendarProvider = calendarProvider;
+        this.permissionChecker = permissionChecker;
         cr = context.getContentResolver();
     }
 
@@ -84,6 +87,10 @@ public class GCalHelper {
     }
 
     public Uri createTaskEvent(Task task, ContentValues values, boolean deleteEventIfExists) {
+        if (!permissionChecker.canAccessCalendars()) {
+            return null;
+        }
+
         String eventuri = getTaskEventUri(task);
 
         if(!TextUtils.isEmpty(eventuri) && deleteEventIfExists) {
@@ -105,11 +112,11 @@ public class GCalHelper {
 
             createStartAndEndDate(task, values);
 
+            //noinspection MissingPermission
             Uri eventUri = cr.insert(CalendarContract.Events.CONTENT_URI, values);
             cr.notifyChange(eventUri, null);
 
             return eventUri;
-
         } catch (Exception e) {
             // won't work on emulator
             Timber.e(e, e.getMessage());