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s4-sites: Document, fix under optimal coding, use exceptions

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Autobuild-User: Matthieu Patou <mat@samba.org>
Autobuild-Date: Wed Nov  2 22:35:00 CET 2011 on sn-devel-104
This commit is contained in:
Matthieu Patou
2011-11-02 20:24:20 +01:00
committed by Matthieu Patou
parent 23d3880725
commit 2db221c384
3 changed files with 104 additions and 40 deletions
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68
source4/scripting/python/samba/sites.py
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@ -22,11 +22,59 @@
import ldb
from ldb import FLAG_MOD_ADD
class SiteException(Exception):
"""Base element for Sites errors"""
def __init__(self, value):
self.value = value
def __str__(self):
return "SiteException: " + self.value
class SiteNotFoundException(SiteException):
"""Raised when the site is not found and it's expected to exists."""
def __init__(self, value):
self.value = value
def __str__(self):
return "SiteNotFoundException: " + self.value
class SiteAlreadyExistsException(SiteException):
"""Raised when the site is not found and it's expected not to exists."""
def __init__(self, value):
self.value = value
def __str__(self):
return "SiteAlreadyExists: " + self.value
class SiteServerNotEmptyException(SiteException):
"""Raised when the site still has servers attached."""
def __init__(self, value):
self.value = value
def __str__(self):
return "SiteServerNotEmpty: " + self.value
def create_site(samdb, configDn, siteName):
"""
Create a site
:param samdb: A samdb connection
:param configDn: The DN of the configuration partition
:param siteName: Name of the site to create
:return: True upon success
:raise SiteAlreadyExists: if the site to be created already exists.
"""
ret = samdb.search(base=configDn, scope=ldb.SCOPE_SUBTREE,
expression='(&(objectclass=Site)(cn=%s))' % siteName)
if len(ret) != 0:
raise Exception('A site with the name %s already exists' % siteName)
raise SiteAlreadyExistsException('A site with the name %s already exists' % siteName)
m = ldb.Message()
m.dn = ldb.Dn(samdb, "Cn=%s,CN=Sites,%s" % (siteName, str(configDn)))
@ -49,14 +97,30 @@ def create_site(samdb, configDn, siteName):
return True
def delete_site(samdb, configDn, siteName):
"""
Delete a site
:param samdb: A samdb connection
:param configDn: The DN of the configuration partition
:param siteName: Name of the site to delete
:return: True upon success
:raise SiteNotFoundException: if the site to be deleted do not exists.
:raise SiteServerNotEmpty: if the site has still servers in it.
"""
dnsites = ldb.Dn(samdb, "CN=Sites,%s" % (str(configDn)))
dnsite = ldb.Dn(samdb, "Cn=%s,CN=Sites,%s" % (siteName, str(configDn)))
dnserver = ldb.Dn(samdb, "Cn=Servers,%s" % str(dnsite))
ret = samdb.search(base=dnsites, scope=ldb.SCOPE_ONELEVEL,
expression='(dn=%s)' % str(dnsite))
if len(ret) != 1:
raise SiteNotFoundException('Site %s do not exists' % siteName)
ret = samdb.search(base=dnserver, scope=ldb.SCOPE_ONELEVEL,
expression='(objectclass=server)')
if len(ret) != 0:
raise Exception('Site %s still has servers in it, move them before removal' % siteName)
raise SiteServerNotEmptyException('Site %s still has servers in it, move them before removal' % siteName)
samdb.delete(dnsite, ["tree_delete:0"])