Add WPush Notification Provider (#5049)

Signed-off-by: Alone88 <anhaoyl@qq.com>

server/notification-providers/wpush.js

@@ -0,0 +1,51 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const { DOWN, UP } = require("../../src/util");
+
+class WPush extends NotificationProvider {
+    name = "WPush";
+
+    /**
+     * @inheritdoc
+     */
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        const okMsg = "Sent Successfully.";
+
+        try {
+            const context = {
+                "title": this.checkStatus(heartbeatJSON, monitorJSON),
+                "content": msg,
+                "apikey": notification.wpushAPIkey,
+                "channel": notification.wpushChannel
+            };
+            const result = await axios.post("https://api.wpush.cn/api/v1/send", context);
+            if (result.data.code !== 0) {
+                throw result.data.message;
+            }
+
+            return okMsg;
+
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+
+    /**
+     * Get the formatted title for message
+     * @param {?object} heartbeatJSON Heartbeat details (For Up/Down only)
+     * @param {?object} monitorJSON Monitor details (For Up/Down only)
+     * @returns {string} Formatted title
+     */
+    checkStatus(heartbeatJSON, monitorJSON) {
+        let title = "UptimeKuma Message";
+        if (heartbeatJSON != null && heartbeatJSON["status"] === UP) {
+            title = "UptimeKuma Monitor Up " + monitorJSON["name"];
+        }
+        if (heartbeatJSON != null && heartbeatJSON["status"] === DOWN) {
+            title = "UptimeKuma Monitor Down " + monitorJSON["name"];
+        }
+        return title;
+    }
+}
+
+module.exports = WPush;