1 files changed, 49 insertions, 0 deletions
diff --git a/lang/python/gpg/callbacks.py b/lang/python/gpg/callbacks.py
new file mode 100644
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--- /dev/null
+++ b/lang/python/gpg/callbacks.py
@@ -0,0 +1,49 @@
+# Copyright (C) 2004 Igor Belyi <[email protected]>
+# Copyright (C) 2002 John Goerzen <[email protected]>
+#
+#    This library is free software; you can redistribute it and/or
+#    modify it under the terms of the GNU Lesser General Public
+#    License as published by the Free Software Foundation; either
+#    version 2.1 of the License, or (at your option) any later version.
+#
+#    This library is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#    Lesser General Public License for more details.
+#
+#    You should have received a copy of the GNU Lesser General Public
+#    License along with this library; if not, write to the Free Software
+#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
+from getpass import getpass
+
+def passphrase_stdin(hint, desc, prev_bad, hook=None):
+    """This is a sample callback that will read a passphrase from
+    the terminal.  The hook here, if present, will be used to describe
+    why the passphrase is needed."""
+    why = ''
+    if hook != None:
+        why = ' ' + hook
+    if prev_bad:
+        why += ' (again)'
+    print("Please supply %s' password%s:" % (hint, why))
+    return getpass()
+
+def progress_stdout(what, type, current, total, hook=None):
+    print("PROGRESS UPDATE: what = %s, type = %d, current = %d, total = %d" %\
+          (what, type, current, total))
+
+def readcb_fh(count, hook):
+    """A callback for data.  hook should be a Python file-like object."""
+    if count:
+        # Should return '' on EOF
+        return hook.read(count)
+    else:
+        # Wants to rewind.
+        if not hasattr(hook, 'seek'):
+            return None
+        hook.seek(0, 0)
+        return None