From 5decfb9fadc71f2099809aff69b4e45fb7e3330f Mon Sep 17 00:00:00 2001
From: Gero Gerke <hello@gerogerke.de>
Date: Tue, 5 Oct 2021 20:03:56 +0200
Subject: [PATCH] Matrix Notifications

---
 server/notification-providers/matrix.js | 37 +++++++++++++++++++++++++
 server/notification.js                  |  2 ++
 src/components/notifications/Matrix.vue | 25 +++++++++++++++++
 src/components/notifications/index.js   |  4 ++-
 src/languages/en.js                     |  1 +
 5 files changed, 68 insertions(+), 1 deletion(-)
 create mode 100644 server/notification-providers/matrix.js
 create mode 100644 src/components/notifications/Matrix.vue

diff --git a/server/notification-providers/matrix.js b/server/notification-providers/matrix.js
new file mode 100644
index 000000000..4593be6a6
--- /dev/null
+++ b/server/notification-providers/matrix.js
@@ -0,0 +1,37 @@
+const NotificationProvider = require("./notification-provider");
+const axios = require("axios");
+const Crypto = require('crypto')
+
+class Matrix extends NotificationProvider {
+
+    name = "matrix";
+
+    async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
+        let okMsg = "Sent Successfully. ";
+
+        const size = 20;
+        const randomString = Crypto
+            .randomBytes(size)
+            .toString('base64')
+            .slice(0, size);    
+
+        try {
+            let config = {
+                headers: {
+                    "Authorization": `Bearer ${notification.accessToken}`,
+                }
+            };
+            let data = {
+                "msgtype": "m.text",
+                "body": msg
+            };
+
+            await axios.put(`${notification.homeserverUrl}/_matrix/client/r0/rooms/${notification.internalRoomId}/send/m.room.message/${randomString}`, data, config)
+            return okMsg;
+        } catch (error) {
+            this.throwGeneralAxiosError(error);
+        }
+    }
+}
+
+module.exports = Matrix;
diff --git a/server/notification.js b/server/notification.js
index 134472410..207e0a37f 100644
--- a/server/notification.js
+++ b/server/notification.js
@@ -5,6 +5,7 @@ const Gotify = require("./notification-providers/gotify");
 const Line = require("./notification-providers/line");
 const LunaSea = require("./notification-providers/lunasea");
 const Mattermost = require("./notification-providers/mattermost");
+const Matrix = require("./notification-providers/matrix");
 const Octopush = require("./notification-providers/octopush");
 const Pushbullet = require("./notification-providers/pushbullet");
 const Pushover = require("./notification-providers/pushover");
@@ -34,6 +35,7 @@ class Notification {
             new Line(),
             new LunaSea(),
             new Mattermost(),
+            new Matrix(),
             new Octopush(),
             new Pushbullet(),
             new Pushover(),
diff --git a/src/components/notifications/Matrix.vue b/src/components/notifications/Matrix.vue
new file mode 100644
index 000000000..12c7dad80
--- /dev/null
+++ b/src/components/notifications/Matrix.vue
@@ -0,0 +1,25 @@
+<template>
+    <div class="mb-3">
+        <label for="homeserver-url" class="form-label">Homeserver URL (with http(s):// and optionally port)</label>
+        <input id="homeserver-url" v-model="$parent.notification.homeserverUrl" type="text" class="form-control" :required="true">
+        <label for="internal-room-id" class="form-label">Internal Room Id</label>
+        <input id="internal-room-id" v-model="$parent.notification.internalRoomId" type="text" class="form-control" required="true">
+        <label for="access-token" class="form-label">Access Token</label>
+        <HiddenInput id="access-token" v-model="$parent.notification.accessToken" :required="true" autocomplete="one-time-code" :maxlength="500"></HiddenInput>
+    </div>
+
+    <p style="margin-top: 8px;">
+        You can find the internal room ID by looking in the advanced section if your Matrix client. It should look like !QMdRCpUIfLwsfjxye6:home.server.<br/>
+        It is highly recommended you create a new user and do not use your Matrix user's access token as it will allow full access to the matrix user. You can get the access token by running curl -XPOST -d '{"type":"m.login.password", "identifier": {"user":"botusername", "type": "m.id.user"}, "password":"passwordforuser"}' "https://home.server.url/_matrix/client/r0/login".
+    </p>
+</template>
+
+<script>
+import HiddenInput from "../HiddenInput.vue";
+
+export default {
+    components: {
+        HiddenInput,
+    },
+}
+</script>
diff --git a/src/components/notifications/index.js b/src/components/notifications/index.js
index e377803e6..6dd9ed928 100644
--- a/src/components/notifications/index.js
+++ b/src/components/notifications/index.js
@@ -15,6 +15,7 @@ import Apprise from "./Apprise.vue";
 import Pushbullet from "./Pushbullet.vue";
 import Line from "./Line.vue";
 import Mattermost from "./Mattermost.vue";
+import Matrix from "./Matrix.vue";
 
 /**
  * Manage all notification form.
@@ -38,7 +39,8 @@ const NotificationFormList = {
     "apprise": Apprise,
     "pushbullet": Pushbullet,
     "line": Line,
-    "mattermost": Mattermost
+    "mattermost": Mattermost,
+    "matrix": Matrix
 }
 
 export default NotificationFormList
diff --git a/src/languages/en.js b/src/languages/en.js
index 46298b015..ccc7290d6 100644
--- a/src/languages/en.js
+++ b/src/languages/en.js
@@ -195,4 +195,5 @@ export default {
     "pushbullet": "Pushbullet",
     "line": "Line Messenger",
     "mattermost": "Mattermost",
+    "matrix": "Matrix",
 };