[16.0] auth_saml: Error decrypt matching_value response to compare output response.name_id.text

[randall-vx]

Error trying to decrypt matching_value response to compare output response with response.name_id.text.

It shows AttributeError: 'NoneType' object has no attribute 'text'.

2023-09-17 02:02:54,015 4049 ERROR odoo odoo.addons.auth_saml.controllers.main: SAML2: failure - 'NoneType' object has no attribute 'text'
Traceback (most recent call last):
  File "/home/odoo/instance/extra_addons/server-auth/auth_saml/controllers/main.py", line 219, in signin
    .auth_saml(
  File "/home/odoo/instance/extra_addons/server-auth/auth_saml/models/res_users.py", line 64, in auth_saml
    validation = self._auth_saml_validate(provider, saml_response, base_url)
  File "/home/odoo/instance/extra_addons/server-auth/auth_saml/models/res_users.py", line 29, in _auth_saml_validate
    return provider._validate_auth_response(token, base_url)
  File "/home/odoo/instance/extra_addons/server-auth/auth_saml/models/auth_saml_provider.py", line 296, in _validate_auth_response
    matching_value = response.name_id.text
AttributeError: 'NoneType' object has no attribute 'text'

Module

auth_saml

Describe the bug

In the class SecurityContext in __init__ we need an encryption_keypairs to decrypt matching_value and compare with response.name_id.text on `auth_saml_provider.py according to the saml2 library

To Reproduce

Affected versions:
16.0 - May affect 15.0

[github-actions]

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