From 879687e0afd397676b3cea20ec5e6def8424567b Mon Sep 17 00:00:00 2001
From: Fabian Sasse <fabaderheld@gmail.com>
Date: Tue, 15 Nov 2022 11:31:53 +0100
Subject: [PATCH] authentication NTFY

---
 back/pialert.py     | 21 +++++++++++++++++----
 config/pialert.conf |  3 +++
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/back/pialert.py b/back/pialert.py
index 1c927b6c..7ea5adce 100644
--- a/back/pialert.py
+++ b/back/pialert.py
@@ -29,6 +29,7 @@ import smtplib
 import csv
 import json
 import requests
+from base64 import b64encode
 
 
 #===============================================================================
@@ -1488,14 +1489,26 @@ def email_reporting ():
     closeDB()
 #-------------------------------------------------------------------------------
 def send_ntfy (_Text):
-    requests.post("{}/{}".format( NTFY_HOST,NTFY_TOPIC),
-    data=_Text,
-    headers={
+    headers = {
         "Title": "Pi.Alert Notification",
         "Actions": "view, Open Dashboard, "+ REPORT_DASHBOARD_URL,
         "Priority": "urgent",
         "Tags": "warning"
-    })
+    }
+    # if username and password are set generate hash and update header
+    if NTFY_USER and NTFY_PASSWORD:
+	# Generate hash for basic auth
+        usernamepassword = "{}:{}".format(NTFY_USER,NTFY_PASSWORD)
+        basichash = b64encode(bytes(NTFY_USER + ':' + NTFY_PASSWORD, "utf-8")).decode("ascii")
+
+	# add authorization header with hash
+        headers["Authorization"] = "Basic {}".format(basichash)
+
+    requests.post("{}/{}".format( NTFY_HOST,NTFY_TOPIC),
+    data=_Text,
+    headers=headers)
+
+send_ntfy("selfhosted ntfy test")
 
 def send_pushsafer (_Text):
     url = 'https://www.pushsafer.com/api'
diff --git a/config/pialert.conf b/config/pialert.conf
index ae253f36..295271b6 100644
--- a/config/pialert.conf
+++ b/config/pialert.conf
@@ -56,6 +56,9 @@ APPRISE_URL             = 'mailto://smtp-relay.sendinblue.com:587?from=user@gmai
 REPORT_NTFY             = False
 NTFY_HOST               = 'https://ntfy.sh'
 NTFY_TOPIC              = 'replace_my_secure_topicname_91h889f28'
+# set username and password if authentication is used https://docs.ntfy.sh/config/#users-and-roles
+NTFY_USER               = ''
+NTFY_PASSWORD           = ''
 
 # PUSHSAFER (https://www.pushsafer.com/) settings
 # ----------------------