erp5_web_renderjs_ui: experiment putting Base_redirect in ERP5JS to use it in the login_form

bt5/erp5_web_renderjs_ui/SkinTemplateItem/portal_skins/erp5_web_renderjs_ui/Base_redirect.py

+# XXX: minimal copy of xhtml_style's implementation, used by OAuth2 authentication.
+# This should be removed once erp5js implements outh2 protocol directly instead of going through login forms
+
+from ZTUtils import make_query
+# BBB: originally, form_id was the first positional argument
+if not redirect_url or '/' not in redirect_url:
+  form_id = redirect_url or form_id
+  redirect_url = context.absolute_url()
+  if form_id:
+    if not redirect_url.endswith('/'):
+      redirect_url += '/'
+    redirect_url += form_id
+if keep_items:
+  redirect_url += '?' + make_query(keep_items)
+context.getPortalObject().REQUEST.RESPONSE.redirect(
+  redirect_url,
+  status=status_code,
+)

bt5/erp5_web_renderjs_ui/SkinTemplateItem/portal_skins/erp5_web_renderjs_ui/Base_redirect.xml

+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <global name="PythonScript" module="Products.PythonScripts.PythonScript"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>Script_magic</string> </key>
+            <value> <int>3</int> </value>
+        </item>
+        <item>
+            <key> <string>_bind_names</string> </key>
+            <value>
+              <object>
+                <klass>
+                  <global name="NameAssignments" module="Shared.DC.Scripts.Bindings"/>
+                </klass>
+                <tuple/>
+                <state>
+                  <dictionary>
+                    <item>
+                        <key> <string>_asgns</string> </key>
+                        <value>
+                          <dictionary>
+                            <item>
+                                <key> <string>name_container</string> </key>
+                                <value> <string>container</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_context</string> </key>
+                                <value> <string>context</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_m_self</string> </key>
+                                <value> <string>script</string> </value>
+                            </item>
+                            <item>
+                                <key> <string>name_subpath</string> </key>
+                                <value> <string>traverse_subpath</string> </value>
+                            </item>
+                          </dictionary>
+                        </value>
+                    </item>
+                  </dictionary>
+                </state>
+              </object>
+            </value>
+        </item>
+        <item>
+            <key> <string>_params</string> </key>
+            <value> <string>redirect_url=None, keep_items=(), abort_transaction=False, status_code=302, form_id=None</string> </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>Base_redirect</string> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>