LDAP login failure with special characters in name

[lasalesi]

Expected Behaviour

Login with LDAP works when using a full name with special character such as ä, ö, ü

Actual Behaviour

Login fails with error message

 Traceback (most recent call last):
   File "/home/frappe/frappe-bench/apps/frappe/frappe/app.py", line 56, in application
     response = frappe.handler.handle()
   File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 21, in handle
     data = execute_cmd(cmd)
   File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 52, in execute_cmd
     return frappe.call(method, **frappe.form_dict)
   File "/home/frappe/frappe-bench/apps/frappe/frappe/__init__.py", line 922, in call
     return fn(*args, **newargs)
   File "/home/frappe/frappe-bench/apps/frappe/frappe/integrations/doctype/ldap_settings /ldap_settings.py", line 50, in login
     user = authenticate_ldap_user(frappe.as_unicode(args.usr), frappe.as_unicode(args.pwd))
   File "/home/frappe/frappe-bench/apps/frappe/frappe/integrations/doctype/ldap_settings /ldap_settings.py", line 94, in authenticate_ldap_user
     conn.simple_bind_s(dn, frappe.as_unicode(password))
   File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/ldap/ldapobject.py", line 228,  in simple_bind_s
     msgid = self.simple_bind(who,cred,serverctrls,clientctrls)
   File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/ldap/ldapobject.py", line 222,       in simple_bind
     return  self._ldap_call(self._l.simple_bind,who,cred,RequestControlTuples(serverctrls),RequestControlTuples(clientctrls))
   File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/ldap/ldapobject.py", line 108,  in _ldap_call
     result = func(*args,**kwargs)
 UnicodeEncodeError: 'ascii' codec can't encode character u'\xfc' in position 9: ordinal not in range(128)
   frappe-web.min.js:1373:21
 Traceback (most recent call last):
   File "/home/frappe/frappe-bench/apps/frappe/frappe/app.py", line 56, in application
     response = frappe.handler.handle()
   File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 21, in handle
     data = execute_cmd(cmd)
   File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 52, in execute_cmd
     return frappe.call(method, **frappe.form_dict)
   File "/home/frappe/frappe-bench/apps/frappe/frappe/__init__.py", line 922, in call
     return fn(*args, **newargs)
   File "/home/frappe/frappe-bench/apps/frappe/frappe/integrations/doctype/ldap_settings /ldap_settings.py", line 50, in login
     user = authenticate_ldap_user(frappe.as_unicode(args.usr), frappe.as_unicode(args.pwd))
   File "/home/frappe/frappe-bench/apps/frappe/frappe/integrations/doctype/ldap_settings  /ldap_settings.py", line 94, in authenticate_ldap_user
     conn.simple_bind_s(dn, frappe.as_unicode(password))
   File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/ldap/ldapobject.py", line 228, in simple_bind_s
     msgid = self.simple_bind(who,cred,serverctrls,clientctrls)
   File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/ldap/ldapobject.py", line 222,  in simple_bind
     return  self._ldap_call(self._l.simple_bind,who,cred,RequestControlTuples(serverctrls),RequestControlTuples(clientctrls))
   File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/ldap/ldapobject.py", line 108,   in _ldap_call
     result = func(*args,**kwargs)
 UnicodeEncodeError: 'ascii' codec can't encode character u'\xfc' in position 9: ordinal not in range(128)

Steps to reproduce:

1. Set up ERPNext with LDAP integration
2. Create a user in the LDAP directory with user name "hans.mueller", full name "Hans Müller" and some PW
3. Try to log in with the above credentials "hans.mueller" and PW

Frappé version:

8.9.2 (master)

[aleksas]

Likely to be the same as https://discuss.erpnext.com/t/ldap-login-ordinal-not-in-range-128/32593
Also Error Snapshot contains non-hidden password.

ERPNext: v10.0.9 (master)
Frappe Framework: v10.0.10 (master)

[aleksas]

Bounty added: LINK

[gavindsouza]

fixed in an early release