Show which Blender ID instance is communicated with in the addon prefs

This is only shown if it was overridden by setting the
BLENDER_ID_ENDPOINT environment variable. It makes Cloud development a
bit easier when it's explicit to which Blender ID (local dev or real
one) we're talking.

blender_id/CHANGELOG.md

@@ -6,6 +6,8 @@
 - API change: `blender_id.get_subclient_user_id()` now returns `''` instead of `None` when the user
   is not logged in.
 - Log which Blender ID instance is communicated with.
+- Show which Blender ID instance is communicated with in the addon preferences,
+  if it was overridden by setting the BLENDER_ID_ENDPOINT environment variable.
 
 
 # Version 1.5 (released 2018-07-03)

blender_id/__init__.py

@@ -239,16 +239,20 @@ class BlenderIdPreferences(AddonPreferences):
                 else:
                     exp_str = 'within seconds'
 
-                if time_left.days < 14:
-                    layout.label(text='You are logged in as %s.' % active_profile.username,
-                                 icon='WORLD_DATA')
-                    layout.label(text='Your token will expire %s. Please log out and log in again '
-                                      'to refresh it.' % exp_str, icon='PREVIEW_RANGE')
+                endpoint = communication.blender_id_endpoint()
+                if endpoint == communication.BLENDER_ID_ENDPOINT:
+                    msg = 'You are logged in as %s.' % active_profile.username
                 else:
-                    layout.label(
-                        text='You are logged in as %s. Your authentication token expires %s.'
-                             % (active_profile.username, exp_str),
-                        icon='WORLD_DATA')
+                    msg = 'You are logged in as %s at %s.' % (active_profile.username, endpoint)
+
+                col = layout.column(align=True)
+                col.label(text=msg, icon='WORLD_DATA')
+                if time_left.days < 14:
+                    col.label(text='Your token will expire %s. Please log out and log in again '
+                                   'to refresh it.' % exp_str, icon='PREVIEW_RANGE')
+                else:
+                    col.label(text='Your authentication token expires %s.' % exp_str,
+                              icon='BLANK1')
 
             row = layout.row().split(factor=0.8)
             row.operator('blender_id.logout')
@@ -263,7 +267,7 @@ class BlenderIdPreferences(AddonPreferences):
 class BlenderIdMixin:
     @staticmethod
     def addon_prefs(context):
-        preferences = context.preferences.addons[__name__].preferences
+        preferences = context.user_preferences.addons[__name__].preferences
         preferences.reset_messages()
         return preferences
 
@@ -352,7 +356,7 @@ def register():
     bpy.utils.register_class(BlenderIdPreferences)
     bpy.utils.register_class(BlenderIdValidate)
 
-    preferences = bpy.context.preferences.addons[__name__].preferences
+    preferences = bpy.context.user_preferences.addons[__name__].preferences
     preferences.reset_messages()
 
 

blender_id/communication.py

@@ -24,6 +24,9 @@ import typing
 
 log = logging.getLogger(__name__)
 
+# Can be overridden by setting the environment variable BLENDER_ID_ENDPOINT.
+BLENDER_ID_ENDPOINT = 'https://www.blender.org/id/'
+
 
 class BlenderIdCommError(RuntimeError):
     """Raised when there was an error communicating with Blender ID"""
@@ -59,7 +62,7 @@ def blender_id_endpoint(endpoint_path=None):
     if base_url:
         log.warning('Using overridden Blender ID url %s', base_url)
     else:
-        base_url = 'https://www.blender.org/id/'
+        base_url = BLENDER_ID_ENDPOINT
         log.info('Using standard Blender ID url %s', base_url)
 
     # urljoin() is None-safe for the 2nd parameter.