mirror of
https://salsa.debian.org/freeipa-team/freeipa.git
synced 2026-10-07 05:59:50 -05:00
David Kupka
229e2a1ed9
When client comunicates with server that doesn't support 'schema' command it needs to determine its api version to be able to use the right compat code. Storing information about server version reduces the need to call 'env' or 'ping' command only to first time the server is contacted. https://fedorahosted.org/freeipa/ticket/6069 Reviewed-By: Jan Cholasta <jcholast@redhat.com>
92 lines
2.4 KiB
Python
92 lines
2.4 KiB
Python
#
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# Copyright (C) 2016 FreeIPA Contributors see COPYING for license
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#
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import collections
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import errno
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import json
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import os
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from . import compat
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from . import schema
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from ipaclient.plugins.rpcclient import rpcclient
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from ipaplatform.paths import paths
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from ipapython.dnsutil import DNSName
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from ipapython.ipa_log_manager import log_mgr
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logger = log_mgr.get_logger(__name__)
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class ServerInfo(collections.MutableMapping):
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_DIR = os.path.join(paths.USER_CACHE_PATH, 'ipa', 'servers')
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def __init__(self, api):
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hostname = DNSName(api.env.server).ToASCII()
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self._path = os.path.join(self._DIR, hostname)
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self._dict = {}
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self._dirty = False
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self._read()
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def __enter__(self):
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return self
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def __exit__(self, *_exc_info):
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if self._dirty:
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self._write()
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def _read(self):
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try:
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with open(self._path, 'r') as sc:
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self._dict = json.load(sc)
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except EnvironmentError as e:
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if e.errno != errno.ENOENT:
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logger.warning('Failed to read server info: {}'.format(e))
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def _write(self):
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try:
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try:
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os.makedirs(self._DIR)
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except EnvironmentError as e:
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if e.errno != errno.EEXIST:
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raise
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with open(self._path, 'w') as sc:
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json.dump(self._dict, sc)
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except EnvironmentError as e:
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logger.warning('Failed to write server info: {}'.format(e))
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def __getitem__(self, key):
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return self._dict[key]
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def __setitem__(self, key, value):
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self._dirty = key not in self._dict or self._dict[key] != value
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self._dict[key] = value
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def __delitem__(self, key):
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del self._dict[key]
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self._dirty = True
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def __iter__(self):
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return iter(self._dict)
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def __len__(self):
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return len(self._dict)
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def get_package(api):
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if api.env.in_tree:
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from ipaserver import plugins
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else:
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with ServerInfo(api) as server_info:
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client = rpcclient(api)
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client.finalize()
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try:
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plugins = schema.get_package(api, server_info, client)
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except schema.NotAvailable:
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plugins = compat.get_package(api, server_info, client)
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finally:
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if client.isconnected():
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client.disconnect()
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return plugins
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