tt-rss: Allow selection of a domain name

Fixes: #2136

Signed-off-by: Joseph Nuthalapati <njoseph@riseup.net>
[james: Fix comment]
Signed-off-by: James Valleroy <jvalleroy@mailbox.org>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>

actions/ttrss

@@ -29,6 +29,13 @@ def parse_arguments():
     subparsers.add_parser('dump-database', help='Dump database to file')
     subparsers.add_parser('restore-database',
                           help='Restore database from file')
+    subparsers.add_parser('get-domain',
+                          help='Get the domain set for Tiny Tiny RSS.')
+    set_domain = subparsers.add_parser(
+        'set-domain', help='Set the domain to be used by Tiny Tiny RSS.')
+    set_domain.add_argument(
+        'domain_name',
+        help='The domain name that will be used by Tiny Tiny RSS.')
 
     subparsers.required = True
     return parser.parse_args()
@@ -40,6 +47,29 @@ def subcommand_pre_setup(_):
         ['tt-rss tt-rss/database-type string pgsql'])
 
 
+def subcommand_get_domain(_):
+    """Get the domain set for Tiny Tiny RSS."""
+    aug = load_augeas()
+
+    from urllib.parse import urlparse
+    for match in aug.match('/files' + CONFIG_FILE + '/define'):
+        if aug.get(match) == 'SELF_URL_PATH':
+            url = aug.get(match + '/value').strip("'")
+            print(urlparse(url).netloc)
+
+
+def subcommand_set_domain(args):
+    """Set the domain to be used by Tiny Tiny RSS."""
+    url = f"'https://{args.domain_name}/tt-rss/'"
+    aug = load_augeas()
+
+    for match in aug.match('/files' + CONFIG_FILE + '/define'):
+        if aug.get(match) == 'SELF_URL_PATH':
+            aug.set(match + '/value', url)
+
+    aug.save()
+
+
 def subcommand_setup(_):
     """Setup Tiny Tiny RSS configuration."""
     aug = load_augeas()
@@ -49,9 +79,7 @@ def subcommand_setup(_):
     skip_self_url_path_exists = False
 
     for match in aug.match('/files' + CONFIG_FILE + '/define'):
-        if aug.get(match) == 'SELF_URL_PATH':
-            aug.set(match + '/value', "'http://localhost/tt-rss/'")
-        elif aug.get(match) == 'PLUGINS':
+        if aug.get(match) == 'PLUGINS':
             aug.set(match + '/value', "'auth_remote, note'")
         elif aug.get(match) == '_SKIP_SELF_URL_PATH_CHECKS':
             skip_self_url_path_exists = True

plinth/modules/ttrss/__init__.py

@@ -102,6 +102,13 @@ class TTRSSApp(app_module.App):
         super().enable()
         actions.superuser_run('ttrss', ['enable-api-access'])
 
+        # Try to set the domain to one of the available TLS domains
+        domain = get_domain()
+        if not domain or domain == 'localhost':
+            from plinth.modules import names
+            domain = next(names.get_available_tls_domains(), None)
+            set_domain(domain)
+
 
 class TTRSSBackupRestore(BackupRestore):
     """Component to backup/restore TT-RSS"""
@@ -136,3 +143,14 @@ def force_upgrade(helper, packages):
     helper.install(['tt-rss'], force_configuration='new')
     actions.superuser_run('ttrss', ['setup'])
     return True
+
+
+def get_domain():
+    """Read TLS domain from tt-rss config file."""
+    return actions.superuser_run('ttrss', ['get-domain']).strip()
+
+
+def set_domain(domain):
+    """Set the TLS domain in tt-rss configuration file."""
+    if domain:
+        actions.superuser_run('ttrss', ['set-domain', domain])

plinth/modules/ttrss/urls.py

@@ -5,8 +5,6 @@ URLs for the Tiny Tiny RSS module.
 
 from django.urls import re_path
 
-from plinth.views import AppView
+from .views import TTRSSAppView
 
-urlpatterns = [
-    re_path(r'^apps/ttrss/$', AppView.as_view(app_id='ttrss'), name='index')
-]
+urlpatterns = [re_path(r'^apps/ttrss/$', TTRSSAppView.as_view(), name='index')]

plinth/modules/ttrss/views.py

@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+from django.contrib import messages
+from django.utils.translation import gettext_lazy as _
+
+from plinth.forms import TLSDomainForm
+from plinth.modules import ttrss
+from plinth.views import AppView
+
+
+class TTRSSAppView(AppView):
+    app_id = 'ttrss'
+    form_class = TLSDomainForm
+
+    def get_initial(self):
+        """Return the values to fill in the form."""
+        initial = super().get_initial()
+        initial['domain'] = ttrss.get_domain()
+        return initial
+
+    def form_valid(self, form):
+        """Change the domain of TT-RSS app."""
+        data = form.cleaned_data
+        if ttrss.get_domain() != data['domain']:
+            ttrss.set_domain(data['domain'])
+            messages.success(self.request, _('Configuration updated'))
+
+        return super().form_valid(form)