Revert "Check that the encrypt input uris are not linked to our own internal storage (OKC-01-010)"

Fix was not sufficient

This reverts commit b10b14d9bc.

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFilesFragment.java

@@ -18,7 +18,6 @@
 package org.sufficientlysecure.keychain.ui;
 
 
-import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Date;
@@ -451,29 +450,9 @@ public class EncryptFilesFragment
 
     }
 
-    /**
-     * Checks that the input uris are not linked to our own internal storage.
-     * This prevents the encryption of our own database (-> export of whole database)
-     */
-    private void securityCheckInternalStorage() {
-        for (FilesAdapter.ViewModel model : mFilesAdapter.mDataset) {
-            File fileInput = new File(model.inputUri.getPath());
-            try {
-                // the canonical path of the file must not start with /data/data/org.sufficientlysecure.keychain/
-                if (fileInput.getCanonicalPath().startsWith(getActivity().getApplicationInfo().dataDir)) {
-                    throw new RuntimeException("Encrypting OpenKeychain's private files is not allowed!");
-                }
-            } catch (IOException e) {
-                Log.e(Constants.TAG, "Getting canonical path failed!", e);
-            }
-        }
-    }
-
-    /**
-     * Prepares mOutputUris, either directly and returns false, or indirectly
-     * which returns true and will call cryptoOperation after mOutputUris has
-     * been set at a later point.
-     */
+    // prepares mOutputUris, either directly and returns false, or indirectly
+    // which returns true and will call cryptoOperation after mOutputUris has
+    // been set at a later point.
     private boolean prepareOutputStreams() {
 
         switch (mAfterEncryptAction) {
@@ -549,8 +528,6 @@ public class EncryptFilesFragment
 
         }
 
-        securityCheckInternalStorage();
-
         return actionsParcel;
 
     }