1 files changed, 99 insertions, 0 deletions
diff --git a/python/samba/common.py b/python/samba/common.py
new file mode 100644
index 0000000000..e47f276f81
--- /dev/null
+++ b/python/samba/common.py
@@ -0,0 +1,99 @@
+# Samba common functions
+#
+# Copyright (C) Matthieu Patou <mat@matws.net>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+
+import ldb
+import dsdb
+
+
+def confirm(msg, forced=False, allow_all=False):
+    """confirm an action with the user
+
+    :param msg: A string to print to the user
+    :param forced: Are the answer forced
+    """
+    if forced:
+        print("%s [YES]" % msg)
+        return True
+
+    mapping = {
+        'Y': True,
+        'YES': True,
+        '': False,
+        'N': False,
+        'NO': False,
+        }
+
+    prompt = '[y/N]'
+
+    if allow_all:
+        mapping['ALL'] = 'ALL'
+        mapping['NONE'] = 'NONE'
+        prompt = '[y/N/all/none]'
+
+    while True:
+        v = raw_input(msg + ' %s ' % prompt)
+        v = v.upper()
+        if v in mapping:
+            return mapping[v]
+        print("Unknown response '%s'" % v)
+
+
+def normalise_int32(ivalue):
+    '''normalise a ldap integer to signed 32 bit'''
+    if int(ivalue) & 0x80000000 and int(ivalue) > 0:
+        return str(int(ivalue) - 0x100000000)
+    return str(ivalue)
+
+
+class dsdb_Dn(object):
+    '''a class for binary DN'''
+
+    def __init__(self, samdb, dnstring, syntax_oid=None):
+        '''create a dsdb_Dn'''
+        if syntax_oid is None:
+            # auto-detect based on string
+            if dnstring.startswith("B:"):
+                syntax_oid = dsdb.DSDB_SYNTAX_BINARY_DN
+            elif dnstring.startswith("S:"):
+                syntax_oid = dsdb.DSDB_SYNTAX_STRING_DN
+            else:
+                syntax_oid = dsdb.DSDB_SYNTAX_OR_NAME
+        if syntax_oid in [dsdb.DSDB_SYNTAX_BINARY_DN, dsdb.DSDB_SYNTAX_STRING_DN]:
+            # it is a binary DN
+            colons = dnstring.split(':')
+            if len(colons) < 4:
+                raise RuntimeError("Invalid DN %s" % dnstring)
+            prefix_len = 4 + len(colons[1]) + int(colons[1])
+            self.prefix = dnstring[0:prefix_len]
+            self.binary = self.prefix[4:-1]
+            self.dnstring = dnstring[prefix_len:]
+        else:
+            self.dnstring = dnstring
+            self.prefix = ''
+            self.binary = ''
+        self.dn = ldb.Dn(samdb, self.dnstring)
+
+    def __str__(self):
+        return self.prefix + str(self.dn.extended_str(mode=1))
+
+    def get_binary_integer(self):
+        '''return binary part of a dsdb_Dn as an integer, or None'''
+        if self.prefix == '':
+            return None
+        return int(self.binary, 16)