Implement LINE Messaging API (#14867)

* implement LINE Messaging api

* apply code clean up

* Update Linemessagingapi.php

* fix variable type

* Match branding

* Remove extra proxy

---------

Co-authored-by: Neil Lathwood <gh+n@laf.io>
Co-authored-by: Tony Murray <murraytony@gmail.com>

LibreNMS/Alert/Transport/Linemessagingapi.php

@@ -0,0 +1,80 @@
+<?php
+/**
+ * Line Messaging API Transport
+ *
+ * @author Johnny Sung <https://github.com/j796160836>
+ * @copyright 2023 Johnny Sung
+ * @license GPL
+ */
+
+namespace LibreNMS\Alert\Transport;
+
+use LibreNMS\Alert\Transport;
+use LibreNMS\Config;
+use LibreNMS\Exceptions\AlertTransportDeliveryException;
+use LibreNMS\Util\Http;
+
+class LineMessagingAPI extends Transport
+{
+    protected string $name = 'LINE Messaging API';
+
+    /**
+     * Deliver Alert
+     *
+     * @param  array<string, string>  $alert_data  Alert data
+     * @return bool True if message sent successfully
+     */
+    public function deliverAlert($alert_data): bool
+    {
+        $apiURL = 'https://api.line.me/v2/bot/message/push';
+        $data = [
+            'to' => $this->config['line-messaging-to'],
+            'messages' => [
+                [
+                    'type' => 'text',
+                    'text' => $alert_data['msg'],
+                ],
+            ],
+        ];
+
+        $res = Http::client()
+        ->withToken($this->config['line-messaging-token'])
+        ->asForm()
+        ->post($apiURL, $data);
+
+        if ($res->successful()) {
+            return true;
+        }
+
+        throw new AlertTransportDeliveryException($alert_data, $res->status(), $res->body(), $alert_data['msg'], $data);
+    }
+
+    /**
+     * Get config template
+     *
+     * @return array<string, mixed> config template
+     */
+    public static function configTemplate(): array
+    {
+        return [
+            'config' => [
+                [
+                    'title' => 'Access token',
+                    'name' => 'line-messaging-token',
+                    'descr' => 'LINE Channel access token',
+                    'type' => 'text',
+                ],
+                [
+                    'title' => 'Recipient (groupID, userID or roomID)',
+                    'name' => 'line-messaging-to',
+                    'descr' => 'The ID of the target recipient. Use a userId, groupId or roomID.',
+                    'type' => 'text',
+                ],
+            ],
+            'validation' => [
+                'line-messaging-token' => 'required|string',
+                'line-messaging-to' => 'required|string',
+            ],
+        ];
+    }
+}