Add shred example

examples/shred.py

@@ -0,0 +1,89 @@
+# Examples: https:/mate-desktop/python-caja/tree/master/examples
+#
+# This script adds a new menu `Secure delete` to Caja file browser when
+# right-mouse clicking on one or more selected files or directories.
+#
+# Copy this script to a path defined in $XDG_DATA_DIRS, for example:
+# ~/.local/share/caja-python/extensions
+
+import os
+import subprocess
+
+import gi
+from gi.repository import Caja, GObject, Gio, Gtk
+
+
+class ShredMenuProvider(GObject.GObject, Caja.MenuProvider):
+ SHRED_ICON = '/usr/share/pixmaps/caja/erase.png'
+
+ def __init__(self):
+ pass
+
+ def menu_activate_cb(self, menu, data):
+ dialog = Gtk.MessageDialog(
+ parent=None,
+ flags=0,
+ message_type=Gtk.MessageType.QUESTION,
+ buttons=Gtk.ButtonsType.YES_NO,
+ text="Are you sure you want to shred selected files?",
+ )
+ dialog.format_secondary_text("WARNING: This cannot be undone!")
+ response = dialog.run()
+ dialog.destroy()
+ if response == Gtk.ResponseType.YES:
+ cmd = data['cmd']
+ for shred_file in data['files']:
+ cmd += ' "{}"'.format(shred_file.get_location().get_path())
+
+ # Start Shred command
+ subprocess.check_call(cmd, shell=True)
+
+ def get_file_items(self, window, files):
+ top_menuitem = Caja.MenuItem(name='ShredMenuProvider::Shred',
+ label='Secure delete',
+ tip='Delete files with the Linux "shred" tool',
+ icon=self.SHRED_ICON)
+
+ shred_submenu = Caja.Menu()
+ top_menuitem.set_submenu(shred_submenu)
+
+ # Shred 1x zero's
+ shred_cmd = 'shred -uz -n 0'
+ shred_1x_zero_menuitem = Caja.MenuItem(name='ShredMenuProvider::Shred1xZero',
+ label='1x zero\'s',
+ tip=shred_cmd + ' FILE...',
+ icon=self.SHRED_ICON)
+ shred_1x_zero_menuitem.connect('activate', self.menu_activate_cb, {'cmd': shred_cmd, 'files': files})
+ shred_submenu.append_item(shred_1x_zero_menuitem)
+
+ # Shred 1x overwrite
+ shred_cmd = 'shred -u -n 0'
+ shred_1x_random_menuitem = Caja.MenuItem(name='ShredMenuProvider::Shred1x',
+ label='1x overwrite',
+ tip=shred_cmd + ' FILE...',
+ icon=self.SHRED_ICON)
+ shred_1x_random_menuitem.connect('activate', self.menu_activate_cb, {'cmd': shred_cmd, 'files': files})
+ shred_submenu.append_item(shred_1x_random_menuitem)
+
+ # Shred 3x overwrite, last zero's
+ shred_cmd = 'shred -uz'
+ shred_3x_zero_menuitem = Caja.MenuItem(name='ShredMenuProvider::Shred3xLastZero',
+ label='3x overwrite, last zero\'s',
+ tip=shred_cmd + ' FILE...',
+ icon=self.SHRED_ICON)
+ shred_3x_zero_menuitem.connect('activate', self.menu_activate_cb, {'cmd': shred_cmd, 'files': files})
+ shred_submenu.append_item(shred_3x_zero_menuitem)
+
+ # Shred 3x overwrite (default)
+ shred_cmd = 'shred -u'
+ shred_3x_random_menuitem = Caja.MenuItem(name='ShredMenuProvider::Shred3x',
+ label='3x overwrite (Default)',
+ tip=shred_cmd + ' FILE...',
+ icon=self.SHRED_ICON)
+ shred_3x_random_menuitem.connect('activate', self.menu_activate_cb, {'cmd': shred_cmd, 'files': files})
+ shred_submenu.append_item(shred_3x_random_menuitem)
+
+ return top_menuitem,
+
+ def get_background_items(self, window, file):
+ return None,