From 7c7c0e1a9326672a8dce3621c410d22cf9c01caa Mon Sep 17 00:00:00 2001
From: Mouse Reeve <mousereeve@riseup.net>
Date: Thu, 17 Nov 2022 14:22:45 -0800
Subject: [PATCH] Admin UI to enable and disable importing

---
 .../0166_sitesettings_imports_enabled.py      | 18 +++++++
 bookwyrm/models/site.py                       |  3 ++
 .../templates/settings/imports/imports.html   | 48 +++++++++++++++++++
 bookwyrm/urls.py                              | 10 ++++
 bookwyrm/views/__init__.py                    |  2 +-
 bookwyrm/views/admin/imports.py               | 23 +++++++++
 6 files changed, 103 insertions(+), 1 deletion(-)
 create mode 100644 bookwyrm/migrations/0166_sitesettings_imports_enabled.py

diff --git a/bookwyrm/migrations/0166_sitesettings_imports_enabled.py b/bookwyrm/migrations/0166_sitesettings_imports_enabled.py
new file mode 100644
index 000000000..ccf4ef374
--- /dev/null
+++ b/bookwyrm/migrations/0166_sitesettings_imports_enabled.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.16 on 2022-11-17 21:50
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bookwyrm", "0165_alter_inviterequest_answer"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="sitesettings",
+            name="imports_enabled",
+            field=models.BooleanField(default=True),
+        ),
+    ]
diff --git a/bookwyrm/models/site.py b/bookwyrm/models/site.py
index 3c1494204..9e97ede9a 100644
--- a/bookwyrm/models/site.py
+++ b/bookwyrm/models/site.py
@@ -86,6 +86,9 @@ class SiteSettings(SiteModel):
     admin_email = models.EmailField(max_length=255, null=True, blank=True)
     footer_item = models.TextField(null=True, blank=True)
 
+    # controls
+    imports_enabled = models.BooleanField(default=True)
+
     field_tracker = FieldTracker(fields=["name", "instance_tagline", "logo"])
 
     @classmethod
diff --git a/bookwyrm/templates/settings/imports/imports.html b/bookwyrm/templates/settings/imports/imports.html
index c6e02f0e1..135af34ed 100644
--- a/bookwyrm/templates/settings/imports/imports.html
+++ b/bookwyrm/templates/settings/imports/imports.html
@@ -11,6 +11,54 @@
 
 {% block panel %}
 
+<div class="block">
+    {% if site.imports_enabled %}
+    <details class="details-panel box">
+        <summary>
+            <span role="heading" aria-level="2" class="title is-6">
+                {% trans "Disable starting new imports" %}
+            </span>
+            <span class="details-close icon icon-x" aria-hidden="true"></span>
+        </summary>
+        <form
+            name="disable-imports"
+            id="disable-imports"
+            method="POST"
+            action="{% url 'settings-imports-disable' %}"
+        >
+            <div class="notification">
+                {% trans "This is only intended to be used when things have gone very wrong with imports and you need to pause the feature while addressing issues." %}
+                {% trans "While imports are disabled, users will not be allowed to start new imports, but existing imports will not be effected." %}
+            </div>
+            {% csrf_token %}
+            <div class="control">
+                <button type="submit" class="button is-danger">
+                    {% trans "Disable imports" %}
+                </button>
+            </div>
+        </form>
+    </details>
+    {% else %}
+    <form
+        name="enable-imports"
+        id="enable-imports"
+        method="POST"
+        action="{% url 'settings-imports-enable' %}"
+        class="box"
+    >
+        <div class="notification is-danger is-light">
+            {% trans "Users are currently unable to start new imports" %}
+        </div>
+        {% csrf_token %}
+        <div class="control">
+            <button type="submit" class="button is-success">
+                {% trans "Enable imports" %}
+            </button>
+        </div>
+    </form>
+    {% endif %}
+</div>
+
 <div class="block">
     <div class="tabs">
         <ul>
diff --git a/bookwyrm/urls.py b/bookwyrm/urls.py
index a1e0ef844..daf05e10e 100644
--- a/bookwyrm/urls.py
+++ b/bookwyrm/urls.py
@@ -301,6 +301,16 @@ urlpatterns = [
         views.ImportList.as_view(),
         name="settings-imports-complete",
     ),
+    re_path(
+        r"^settings/imports/disable/?$",
+        views.disable_imports,
+        name="settings-imports-disable",
+    ),
+    re_path(
+        r"^settings/imports/enable/?$",
+        views.enable_imports,
+        name="settings-imports-enable",
+    ),
     re_path(
         r"^settings/celery/?$", views.CeleryStatus.as_view(), name="settings-celery"
     ),
diff --git a/bookwyrm/views/__init__.py b/bookwyrm/views/__init__.py
index e5b772136..21e33450c 100644
--- a/bookwyrm/views/__init__.py
+++ b/bookwyrm/views/__init__.py
@@ -10,7 +10,7 @@ from .admin.federation import Federation, FederatedServer
 from .admin.federation import AddFederatedServer, ImportServerBlocklist
 from .admin.federation import block_server, unblock_server, refresh_server
 from .admin.email_blocklist import EmailBlocklist
-from .admin.imports import ImportList
+from .admin.imports import ImportList, disable_imports, enable_imports
 from .admin.ip_blocklist import IPBlocklist
 from .admin.invite import ManageInvites, Invite, InviteRequest
 from .admin.invite import ManageInviteRequests, ignore_invite_request
diff --git a/bookwyrm/views/admin/imports.py b/bookwyrm/views/admin/imports.py
index cdb8af751..fe04a0f2b 100644
--- a/bookwyrm/views/admin/imports.py
+++ b/bookwyrm/views/admin/imports.py
@@ -5,6 +5,7 @@ from django.shortcuts import get_object_or_404, redirect
 from django.template.response import TemplateResponse
 from django.utils.decorators import method_decorator
 from django.views import View
+from django.views.decorators.http import require_POST
 
 from bookwyrm import models
 from bookwyrm.settings import PAGE_LENGTH
@@ -53,3 +54,25 @@ class ImportList(View):
         import_job = get_object_or_404(models.ImportJob, id=import_id)
         import_job.stop_job()
         return redirect("settings-imports")
+
+
+@require_POST
+@permission_required("bookwyrm.edit_instance_settings", raise_exception=True)
+# pylint: disable=unused-argument
+def disable_imports(request):
+    """When you just need people to please stop starting imports"""
+    site = models.SiteSettings.objects.get()
+    site.imports_enabled = False
+    site.save(update_fields=["imports_enabled"])
+    return redirect("settings-imports")
+
+
+@require_POST
+@permission_required("bookwyrm.edit_instance_settings", raise_exception=True)
+# pylint: disable=unused-argument
+def enable_imports(request):
+    """When you just need people to please stop starting imports"""
+    site = models.SiteSettings.objects.get()
+    site.imports_enabled = True
+    site.save(update_fields=["imports_enabled"])
+    return redirect("settings-imports")