support: Add ability to change subdomain of realms.

analytics/tests/test_views.py

@@ -714,6 +714,31 @@ class TestSupportEndpoint(ZulipTestCase):
             m.assert_called_once_with(lear_realm)
             self.assert_in_success_response(["Realm reactivation email sent to admins of lear"], result)
 
+    def test_change_subdomain(self) -> None:
+        cordelia = self.example_user('cordelia')
+        lear_realm = get_realm('lear')
+        self.login_user(cordelia)
+
+        result = self.client_post("/activity/support", {"realm_id": f"{lear_realm.id}",
+                                                        "new_subdomain": "new_name"})
+        self.assertEqual(result.status_code, 302)
+        self.assertEqual(result["Location"], "/login/")
+        self.login('iago')
+
+        result = self.client_post("/activity/support", {"realm_id": f"{lear_realm.id}", "new_subdomain": "new-name"})
+        self.assertEqual(result.status_code, 302)
+        self.assertEqual(result["Location"], "/activity/support?q=new-name")
+        realm_id = lear_realm.id
+        lear_realm = get_realm('new-name')
+        self.assertEqual(lear_realm.id, realm_id)
+        self.assertFalse(Realm.objects.filter(string_id='lear').exists())
+
+        result = self.client_post("/activity/support", {"realm_id": f"{lear_realm.id}", "new_subdomain": "new-name"})
+        self.assert_in_success_response(["Subdomain unavailable. Please choose a different one."], result)
+
+        result = self.client_post("/activity/support", {"realm_id": f"{lear_realm.id}", "new_subdomain": "zulip"})
+        self.assert_in_success_response(["Subdomain unavailable. Please choose a different one."], result)
+
     def test_downgrade_realm(self) -> None:
         cordelia = self.example_user('cordelia')
         self.login_user(cordelia)

analytics/views.py

@@ -7,6 +7,7 @@ from collections import defaultdict
 from datetime import datetime, timedelta, timezone
 from decimal import Decimal
 from typing import Any, Callable, Dict, List, Optional, Sequence, Set, Tuple, Type, Union
+from urllib.parse import urlencode
 
 import pytz
 from django.conf import settings
@@ -14,7 +15,7 @@ from django.core.exceptions import ValidationError
 from django.core.validators import URLValidator
 from django.db import connection
 from django.db.models.query import QuerySet
-from django.http import HttpRequest, HttpResponse, HttpResponseNotFound
+from django.http import HttpRequest, HttpResponse, HttpResponseNotFound, HttpResponseRedirect
 from django.shortcuts import render
 from django.template import loader
 from django.urls import reverse
@@ -45,8 +46,10 @@ from zerver.decorator import (
     to_utc_datetime,
     zulip_login_required,
 )
+from zerver.forms import check_subdomain_available
 from zerver.lib.actions import (
     do_change_plan_type,
+    do_change_realm_subdomain,
     do_deactivate_realm,
     do_scrub_realm,
     do_send_realm_reactivation_email,
@@ -1108,6 +1111,11 @@ def get_confirmations(types: List[int], object_ids: List[int],
 @require_server_admin
 def support(request: HttpRequest) -> HttpResponse:
     context: Dict[str, Any] = {}
+
+    if "success_message" in request.session:
+        context["success_message"] = request.session["success_message"]
+        del request.session["success_message"]
+
     if settings.BILLING_ENABLED and request.method == "POST":
         # We check that request.POST only has two keys in it: The
         # realm_id and a field to change.
@@ -1132,6 +1140,17 @@ def support(request: HttpRequest) -> HttpResponse:
             attach_discount_to_realm(realm, new_discount)
             msg = f"Discount of {realm.string_id} changed to {new_discount} from {current_discount} "
             context["success_message"] = msg
+        elif request.POST.get("new_subdomain", None) is not None:
+            new_subdomain = request.POST.get("new_subdomain")
+            old_subdomain = realm.string_id
+            try:
+                check_subdomain_available(new_subdomain)
+            except ValidationError as error:
+                context["error_message"] = error.message
+            else:
+                do_change_realm_subdomain(realm, new_subdomain)
+                request.session["success_message"] = f"Subdomain changed from {old_subdomain} to {new_subdomain}"
+                return HttpResponseRedirect(reverse('support') + '?' + urlencode({'q': new_subdomain}))
         elif request.POST.get("status", None) is not None:
             status = request.POST.get("status")
             if status == "active":

static/styles/portico/activity.css

@@ -76,7 +76,7 @@ tr.admin td:first-child {
 
 .support-plan-type-form {
     position: relative;
-    top: -25px;
+    top: -10px;
 }
 
 .sponsorship-pending-form {
@@ -86,7 +86,7 @@ tr.admin td:first-child {
 
 .current-plan-details {
     position: relative;
-    top: -50px;
+    top: -15px;
 }
 
 .approve-sponsorship-form {
@@ -120,7 +120,7 @@ tr.admin td:first-child {
 
 .support-submit-button {
     position: relative;
-    top: -5px;
+    top: -3px;
     border-color: hsl(0, 0%, 83%);
     border-radius: 2px;
 }

templates/analytics/realm_details.html

@@ -18,6 +18,13 @@
     </select>
     <button type="submit" class="button rounded small support-submit-button">Update</button>
 </form>
+<form method="POST">
+    <b>New subdomain</b>:<br>
+    {{ csrf_input }}
+    <input type="hidden" name="realm_id" value="{{ realm.id }}" />
+    <input type="text" name="new_subdomain" required>
+    <button type="submit" class="button rounded small support-submit-button">Update</button>
+</form>
 <form method="POST" class="support-plan-type-form">
     <b>Plan type</b>:<br>
     {{ csrf_input }}

templates/analytics/support.html

@@ -7,7 +7,6 @@
 <title>Info</title>
 {% endblock %}
 
-
 {% block content %}
 <div class="container">
     <br>
@@ -18,7 +17,13 @@
         </center>
     </form>
 
-    {% if success_message %}
+    {% if error_message %}
+    <div class="alert alert-danger">
+        <center>
+            {{ error_message }}
+        </center>
+    </div>
+    {% elif success_message %}
     <div class="alert alert-success">
         <center>
             {{ success_message }}