Add auth_admin for 11.0 from https://github.com/hibou-io/odoo-auth-admin

auth_admin/wizard/__init__.py

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+# -*- coding: utf-8 -*-
+from . import portal_wizard

auth_admin/wizard/portal_wizard.py

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+from odoo import api, fields, models
+from ..models.res_users import admin_auth_generate_login
+
+
+class PortalWizard(models.TransientModel):
+    _inherit = 'portal.wizard'
+
+    @api.multi
+    def admin_auth_generate_login(self):
+        self.ensure_one()
+        self.user_ids.admin_auth_generate_login()
+        return {'type': 'ir.actions.do_nothing'}
+
+
+class PortalWizardUser(models.TransientModel):
+    _inherit = 'portal.wizard.user'
+
+    force_login_url = fields.Char(string='Force Login URL')
+
+    @api.multi
+    def admin_auth_generate_login(self):
+        ir_model_access = self.env['ir.model.access']
+        for row in self:
+            row.force_login_url = ''
+            user = row.partner_id.user_ids[0] if row.partner_id.user_ids else None
+            if ir_model_access.check('res.partner', mode='unlink') and row.in_portal and user:
+                row.force_login_url = admin_auth_generate_login(self.env, user)

auth_admin/wizard/portal_wizard_views.xml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+
+    <record id="portal_wizard" model="ir.ui.view">
+        <field name="name">Portal Access Management - Auth Admin</field>
+        <field name="model">portal.wizard</field>
+        <field name="inherit_id" ref="portal.wizard_view"/>
+        <field name="arch" type="xml">
+            <xpath expr="//field[@name='in_portal']" position="after">
+                <field name="force_login_url" readonly="1"/>
+            </xpath>
+            <xpath expr="//button[last()]" position="after">
+                <button string="Generate Login URL" type="object" name="admin_auth_generate_login" class="btn-default" />
+            </xpath>
+        </field>
+    </record>
+
+</odoo>