Only load plugins if PLUGINS_ENABLED is true

- Hide plugin settings
- Add plugin support status to "stats" dialog

InvenTree/part/templatetags/inventree_extras.py

@@ -7,6 +7,7 @@ over and above the built-in Django tags.
 
 import os
 import sys
+import django
 from django.utils.html import format_html
 
 from django.utils.translation import ugettext_lazy as _
@@ -107,6 +108,13 @@ def inventree_docker_mode(*args, **kwargs):
     return djangosettings.DOCKER
 
 
+@register.simple_tag()
+def plugins_enabled(*args, **kwargs):
+    """ Return True if plugins are enabled for the server instance """
+
+    return djangosettings.PLUGINS_ENABLED
+
+
 @register.simple_tag()
 def inventree_db_engine(*args, **kwargs):
     """ Return the InvenTree database backend e.g. 'postgresql' """

InvenTree/plugin/apps.py

@@ -1,21 +1,32 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+import logging
+
 from django.apps import AppConfig
+from django.conf import settings
+
 from maintenance_mode.core import set_maintenance_mode
 
 from plugin import plugin_registry
 
 
+logger = logging.getLogger('inventree')
+
+
 class PluginAppConfig(AppConfig):
     name = 'plugin'
 
     def ready(self):
-        if not plugin_registry.is_loading:
-            # this is the first startup
-            plugin_registry.collect_plugins()
-            plugin_registry.load_plugins()
 
-            # drop out of maintenance
-            # makes sure we did not have an error in reloading and maintenance is still active
-            set_maintenance_mode(False)
+        if settings.PLUGINS_ENABLED:
+            logger.info('Loading InvenTree plugins')
+
+            if not plugin_registry.is_loading:
+                # this is the first startup
+                plugin_registry.collect_plugins()
+                plugin_registry.load_plugins()
+
+                # drop out of maintenance
+                # makes sure we did not have an error in reloading and maintenance is still active
+                set_maintenance_mode(False)

InvenTree/plugin/events.py

@@ -31,6 +31,10 @@ def trigger_event(event, *args, **kwargs):
     and the worker will respond to it later on.
     """
 
+    if not settings.PLUGINS_ENABLED:
+        # Do nothing if plugins are not enabled
+        return
+
     if not canAppAccessDatabase():
         logger.debug(f"Ignoring triggered event '{event}' - database not ready")
         return

InvenTree/plugin/registry.py

@@ -66,6 +66,10 @@ class PluginsRegistry:
         Load and activate all IntegrationPlugins
         """
 
+        if not settings.PLUGINS_ENABLED:
+            # Plugins not enabled, do nothing
+            return
+
         from plugin.helpers import log_plugin_error
 
         logger.info('Start loading plugins')
@@ -75,15 +79,16 @@ class PluginsRegistry:
         if not _maintenance:
             set_maintenance_mode(True)
 
-        registered_sucessfull = False
+        registered_successful = False
         blocked_plugin = None
         retry_counter = settings.PLUGIN_RETRY
-        while not registered_sucessfull:
+
+        while not registered_successful:
             try:
                 # We are using the db so for migrations etc we need to try this block
                 self._init_plugins(blocked_plugin)
                 self._activate_plugins()
-                registered_sucessfull = True
+                registered_successful = True
             except (OperationalError, ProgrammingError):
                 # Exception if the database has not been migrated yet
                 logger.info('Database not accessible while loading plugins')
@@ -122,6 +127,10 @@ class PluginsRegistry:
         Unload and deactivate all IntegrationPlugins
         """
 
+        if not settings.PLUGINS_ENABLED:
+            # Plugins not enabled, do nothing
+            return
+
         logger.info('Start unloading plugins')
 
         # Set maintanace mode
@@ -162,6 +171,10 @@ class PluginsRegistry:
         Collect integration plugins from all possible ways of loading
         """
 
+        if not settings.PLUGINS_ENABLED:
+            # Plugins not enabled, do nothing
+            return
+
         self.plugin_modules = []  # clear
 
         # Collect plugins from paths

InvenTree/templates/InvenTree/settings/settings.html

@@ -39,14 +39,16 @@
 {% include "InvenTree/settings/build.html" %}
 {% include "InvenTree/settings/po.html" %}
 {% include "InvenTree/settings/so.html" %}
-{% include "InvenTree/settings/plugin.html" %}
 
+{% if plugins_enabled %}
+{% include "InvenTree/settings/plugin.html" %}
 {% plugin_list as pl_list %}
 {% for plugin_key, plugin in pl_list.items %}
     {% if plugin.registered_mixins %}
         {% include "InvenTree/settings/plugin_settings.html" %}
     {% endif %}
 {% endfor %}
+{% endif %}
 
 {% endif %}
 
@@ -333,9 +335,11 @@ $("#import-part").click(function() {
     launchModalForm("{% url 'api-part-import' %}?reset", {});
 });
 
+{% if plugins_enabled %}
 $("#install-plugin").click(function() {
     installPlugin();
 });
+{% endif %}
 
 enableSidebar('settings');
 

InvenTree/templates/InvenTree/settings/sidebar.html

@@ -47,15 +47,16 @@
 {% trans "Sales Orders" as text %}
 {% include "sidebar_item.html" with label='sales-order' text=text icon="fa-truck" %}
 
+{% if plugins_enabled %}
 {% include "sidebar_header.html" with text="Plugin Settings" %}
-
 {% include "sidebar_item.html" with label='plugin' text="Plugins" icon="fa-plug" %}
 
 {% plugin_list as pl_list %}
 {% for plugin_key, plugin in pl_list.items %}
-    {% if plugin.registered_mixins %}
-        {% include "sidebar_item.html" with label='plugin-'|add:plugin_key text=plugin.human_name %}
-    {% endif %}
+{% if plugin.registered_mixins %}
+{% include "sidebar_item.html" with label='plugin-'|add:plugin_key text=plugin.human_name %}
+{% endif %}
 {% endfor %}
+{% endif %}
 
 {% endif %}

InvenTree/templates/stats.html

@@ -34,6 +34,18 @@
         <td>{% trans "Server is deployed using docker" %}</td>
     </tr>
     {% endif %}
+    <tr>
+        <td><span class='fas fa-plug'></span></td>
+        <td>{% trans "Plugin Support" %}</td>
+        <td>
+            {% plugins_enabled as p_en %}
+            {% if p_en %}
+            <span class='badge rounded-pill bg-success'>{% trans "Plugin support enabled" %}</span>
+            {% else %}
+            <span class='badge rounded-pill bg-warning'>{% trans "Plugin support disabled" %}</span>
+            {% endif %}
+        </td>
+    </tr>
     {% if user.is_staff %}
     <tr>
         <td><span class='fas fa-server'></span></td>