Add Bitrix24 Webhook notification (#3620)

Co-authored-by: Frank Elsinga <frank@elsinga.de>
Co-authored-by: Matthew Nickson <mnickson@sidingsmedia.com>

server/notification-providers/bitrix24.js

@@ -0,0 +1,31 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { UP } = require("../../src/util");
+
+class Bitrix24 extends NotificationProvider {
+    name = "Bitrix24";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            const params = {
+                user_id: notification.bitrix24UserID,
+                message: "[B]Uptime Kuma[/B]",
+                "ATTACH[COLOR]": (heartbeatJSON ?? {})["status"] === UP ? "#b73419" : "#67b518",
+                "ATTACH[BLOCKS][0][MESSAGE]": msg
+            };
+
+            await axios.get(`${notification.bitrix24WebhookURL}/im.notify.system.add.json`, { params });
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Bitrix24;