From 97a592a53e4d147e5f4af472dd5f884644f2cf93 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benjamin=20B=C3=A4dorf?= <hello@benjaminbaedorf.eu>
Date: Fri, 8 Dec 2023 17:09:32 +0100
Subject: [PATCH] forgejo: allow webhooks to all pub.solar subdomains

This should fix the following error that was occuring while trying to post
notices to matrix channels:

```
Delivery: Put "https://matrix.pub.solar/_matrix/client/r0/rooms/[...]": dial tcp [::1]:443: webhook can only call allowed HTTP servers (check your webhook.ALLOWED_HOST_LIST setting), deny 'matrix.pub.solar([::1]:443)'
```
---
 hosts/nachtigall/apps/forgejo.nix | 26 ++++++++++++++++++++++----
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/hosts/nachtigall/apps/forgejo.nix b/hosts/nachtigall/apps/forgejo.nix
index 638b605..080b931 100644
--- a/hosts/nachtigall/apps/forgejo.nix
+++ b/hosts/nachtigall/apps/forgejo.nix
@@ -51,7 +51,9 @@
         HTTP_ADDR = "127.0.0.1";
         HTTP_PORT = 3000;
       };
+
       log.LEVEL = "Warn";
+
       mailer = {
         ENABLED = true;
         PROTOCOL = "smtps";
@@ -60,14 +62,17 @@
         FROM = ''"pub.solar git server" <forgejo@pub.solar>'';
         USER = "admins@pub.solar";
       };
+
       "repository.signing" = {
         SIGNING_KEY = "default";
         MERGES = "always";
       };
+
       openid = {
         ENABLE_OPENID_SIGNIN = true;
         ENABLE_OPENID_SIGNUP = true;
       };
+
       service = {
         # uncomment after initial deployment, first user is admin user
         # required to setup SSO (oauth openid-connect, keycloak auth provider)
@@ -75,15 +80,28 @@
         ENABLE_NOTIFY_MAIL = true;
         DEFAULT_KEEP_EMAIL_PRIVATE = true;
       };
+
       session = {
         PROVIDER = "db";
         COOKIE_SECURE = lib.mkForce true;
       };
+
+      # https://forgejo.org/docs/latest/admin/config-cheat-sheet/#webhook-webhook
+      webhook = {
+        ALLOWED_HOST_LIST = [
+          "loopback"
+          "external"
+          "*.pub.solar"
+        ];
+      };
+
       # See https://forgejo.org/docs/latest/admin/actions/
-      actions.ENABLED = true;
-      # In an actions workflow, when uses: does not specify an absolute URL,
-      # the value of DEFAULT_ACTIONS_URL is prepended to it.
-      actions.DEFAULT_ACTIONS_URL = "https://code.forgejo.org";
+      actions = {
+        ENABLED = true;
+        # In an actions workflow, when uses: does not specify an absolute URL,
+        # the value of DEFAULT_ACTIONS_URL is prepended to it.
+        DEFAULT_ACTIONS_URL = "https://code.forgejo.org";
+      };
     };
   };