navbar: Add gear menu advertisement for sponsoring zulip.

templates/zerver/app/navbar.html

@@ -136,6 +136,13 @@
                                 </a>
                             </li>
                             {% endif %}
+                            {% if promote_sponsoring_zulip %}
+                            <li role="presentation">
+                                <a href="https://github.com/sponsors/zulip" target="_blank" role="menuitem">
+                                    <i class="fa fa-heart" aria-hidden="true"></i> {{ _('Support Zulip') }}
+                                </a>
+                            </li>
+                            {% endif %}
                             {% if show_plans %}
                             <li role="presentation">
                                 <a href="/plans" target="_blank" rel="noopener noreferrer" role="menuitem">

zerver/lib/home.py

@@ -101,6 +101,15 @@ def get_bot_types(user_profile: Optional[UserProfile]) -> List[Dict[str, object]
     return bot_types
 
 
+def promote_sponsoring_zulip_in_realm(realm: Realm) -> bool:
+    if not settings.PROMOTE_SPONSORING_ZULIP:
+        return False
+
+    # If PROMOTE_SPONSORING_ZULIP is enabled, advertise sponsoring
+    # Zulip in the gear menu of non-paying organizations.
+    return realm.plan_type in [Realm.STANDARD_FREE, Realm.SELF_HOSTED]
+
+
 def get_billing_info(user_profile: UserProfile) -> BillingInfo:
     show_billing = False
     show_plans = False
@@ -118,7 +127,10 @@ def get_billing_info(user_profile: UserProfile) -> BillingInfo:
         if not user_profile.is_guest and user_profile.realm.plan_type == Realm.LIMITED:
             show_plans = True
 
-    return BillingInfo(show_billing=show_billing, show_plans=show_plans)
+    return BillingInfo(
+        show_billing=show_billing,
+        show_plans=show_plans,
+    )
 
 
 def get_user_permission_info(user_profile: Optional[UserProfile]) -> UserPermissionInfo:

zerver/tests/test_home.py

@@ -805,6 +805,30 @@ class HomeTest(ZulipTestCase):
         result_html = self._get_home_page().content.decode("utf-8")
         self.assertNotIn("Plans", result_html)
 
+    def test_show_support_zulip(self) -> None:
+        realm = get_realm("zulip")
+
+        self.login("hamlet")
+
+        result_html = self._get_home_page().content.decode("utf-8")
+        self.assertIn("Support Zulip", result_html)
+
+        do_change_plan_type(realm, Realm.STANDARD_FREE, acting_user=None)
+        result_html = self._get_home_page().content.decode("utf-8")
+        self.assertIn("Support Zulip", result_html)
+
+        with self.settings(PROMOTE_SPONSORING_ZULIP=False):
+            result_html = self._get_home_page().content.decode("utf-8")
+            self.assertNotIn("Support Zulip", result_html)
+
+        do_change_plan_type(realm, Realm.LIMITED, acting_user=None)
+        result_html = self._get_home_page().content.decode("utf-8")
+        self.assertNotIn("Support Zulip", result_html)
+
+        do_change_plan_type(realm, Realm.STANDARD, acting_user=None)
+        result_html = self._get_home_page().content.decode("utf-8")
+        self.assertNotIn("Support Zulip", result_html)
+
     def test_desktop_home(self) -> None:
         self.login("hamlet")
         result = self.client_get("/desktop_home")

zerver/views/home.py

@@ -16,6 +16,7 @@ from zerver.lib.home import (
     build_page_params_for_home_page_load,
     get_billing_info,
     get_user_permission_info,
+    promote_sponsoring_zulip_in_realm,
 )
 from zerver.lib.push_notifications import num_push_devices_for_user
 from zerver.lib.streams import access_stream_by_name
@@ -231,6 +232,7 @@ def home_real(request: HttpRequest) -> HttpResponse:
             "search_pills_enabled": settings.SEARCH_PILLS_ENABLED,
             "show_invites": show_invites,
             "show_add_streams": show_add_streams,
+            "promote_sponsoring_zulip": promote_sponsoring_zulip_in_realm(realm),
             "show_billing": billing_info.show_billing,
             "corporate_enabled": settings.CORPORATE_ENABLED,
             "show_plans": billing_info.show_plans,

zproject/default_settings.py

@@ -180,6 +180,7 @@ PASSWORD_MIN_GUESSES = 10000
 PUSH_NOTIFICATION_BOUNCER_URL: Optional[str] = None
 PUSH_NOTIFICATION_REDACT_CONTENT = False
 SUBMIT_USAGE_STATISTICS = True
+PROMOTE_SPONSORING_ZULIP = True
 RATE_LIMITING = True
 RATE_LIMITING_AUTHENTICATE = True
 SEND_LOGIN_EMAILS = True

zproject/prod_settings_template.py

@@ -611,6 +611,9 @@ SOCIAL_AUTH_SAML_SUPPORT_CONTACT = {
 ## Defaults to True if and only if the Mobile Push Notifications Service is enabled.
 # SUBMIT_USAGE_STATISTICS = True
 
+## Whether to lightly advertise sponsoring Zulip in the gear menu.
+# PROMOTE_SPONSORING_ZULIP = True
+
 ## Controls whether session cookies expire when the browser closes
 SESSION_EXPIRE_AT_BROWSER_CLOSE = False