From 7cabfd3a4271b1207036e0ce3a2b562d0b445bb2 Mon Sep 17 00:00:00 2001
From: Cyrille Chopelet <cyrille.chopelet@mines-nancy.org>
Date: Sun, 25 Jul 2021 14:51:52 +0200
Subject: [PATCH] Allow the use of Mailgun's EU region

---
 source/config.js        | 6 ++++++
 source/lib/Staticman.js | 2 ++
 source/siteConfig.js    | 5 +++++
 staticman.sample.yml    | 3 +++
 4 files changed, 16 insertions(+)

diff --git a/source/config.js b/source/config.js
index 0cca8c5f..a537b99b 100644
--- a/source/config.js
+++ b/source/config.js
@@ -27,6 +27,12 @@ export const schema = {
     },
   },
   email: {
+    apiHost: {
+      doc: 'The Mailgun host to use. Note that if you are using the EU region the host should be set to `api.eu.mailgun.net`. Will be overridden by a `notifications.apiHost` parameter in the site config, if one is set.',
+      format: String,
+      default: 'api.mailgun.net',
+      env: 'EMAIL_API_HOST'
+    },
     apiKey: {
       doc:
         'Mailgun API key to be used for email notifications. Will be overridden by a `notifications.apiKey` parameter in the site config, if one is set.',
diff --git a/source/lib/Staticman.js b/source/lib/Staticman.js
index 89411225..c0d50d93 100644
--- a/source/lib/Staticman.js
+++ b/source/lib/Staticman.js
@@ -357,7 +357,9 @@ export default class Staticman {
     if (!this.siteConfig.get('notifications.enabled')) return null;
 
     // Initialise Mailgun
+    const mailgunHost = this.siteConfig.get('notifications.apiHost') || config.get('email.apiHost')
     const mailgun = Mailgun({
+      ...(mailgunHost && { host: mailgunHost }),
       apiKey: this.siteConfig.get('notifications.apiKey') || config.get('email.apiKey'),
       domain: this.siteConfig.get('notifications.domain') || config.get('email.domain'),
     });
diff --git a/source/siteConfig.js b/source/siteConfig.js
index 21989328..784800ad 100644
--- a/source/siteConfig.js
+++ b/source/siteConfig.js
@@ -149,6 +149,11 @@ export const schema = {
       format: Boolean,
       default: false,
     },
+    apiHost: {
+      doc: 'Mailgun API host. Note that if you are using the EU region the host should be set to `api.eu.mailgun.net`.',
+      format: String,
+      default: 'api.mailgun.net'
+    },
     apiKey: {
       doc: 'Mailgun API key',
       format: 'EncryptedString',
diff --git a/staticman.sample.yml b/staticman.sample.yml
index ce1ccc1e..b079bd0b 100644
--- a/staticman.sample.yml
+++ b/staticman.sample.yml
@@ -52,6 +52,9 @@ comments:
   # Enable notifications
   #enabled: true
 
+  # Mailgun API host name.  If in EU Region, use 'api.eu.mailgun.net'
+  #apiHost: api.mailgun.net
+
   # (!) ENCRYPTED
   #
   # Mailgun API key