[bug] ldap地址正确但是测试连接失败

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Traceback (most recent call last):
  File "/app/bkuser_core/categories/plugins/ldap/client.py", line 71, in initialize
    return Connection(**connection_params)
  File "/usr/local/lib/python3.6/site-packages/ldap3/core/connection.py", line 326, in __init__
    self.do_auto_bind()
  File "/usr/local/lib/python3.6/site-packages/ldap3/core/connection.py", line 341, in do_auto_bind
    self.open(read_server_info=False)
  File "/usr/local/lib/python3.6/site-packages/ldap3/strategy/sync.py", line 56, in open
    BaseStrategy.open(self, reset_usage, read_server_info)
  File "/usr/local/lib/python3.6/site-packages/ldap3/strategy/base.py", line 150, in open
    raise LDAPSocketOpenError('invalid server address')
ldap3.core.exceptions.LDAPSocketOpenError: invalid server address

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/app/bkuser_core/categories/views.py", line 197, in test_connection
    syncer_cls(instance.id).fetcher.client.initialize(**serializer.validated_data)
  File "<string>", line 6, in __init__
  File "/app/bkuser_core/categories/plugins/ldap/syncer.py", line 159, in __post_init__
    self.fetcher: LDAPFetcher = self.get_fetcher()
  File "/app/bkuser_core/categories/plugins/base.py", line 230, in get_fetcher
    return self.fetcher_cls(self.category_id, self.config_loader)
  File "<string>", line 4, in __init__
  File "/app/bkuser_core/categories/plugins/ldap/syncer.py", line 40, in __post_init__
    self.client = LDAPClient(self.config_loader)
  File "<string>", line 3, in __init__
  File "/app/bkuser_core/categories/plugins/ldap/client.py", line 38, in __post_init__
    use_ssl=bool(self.config_provider.get("ssl_encryption") == "SSL"),
  File "/app/bkuser_core/categories/plugins/ldap/client.py", line 79, in initialize
    raise local_exceptions.LdapCannotBeInitialized
bkuser_core.categories.plugins.ldap.exceptions.LdapCannotBeInitialized

ldap3从 2.6.1, 升级到 2.7 之后解决;

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https://github.com/cannatag/ldap3/search?q=invalid+server+address&type=issues

跟里面的问题有关系, 应该是一个bugfix;

对应的ldap server是 openldap

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cannatag/ldap3#750