fix(nix): Remove unnecessary package group, use python 3.11

Closes: #8

.envrc

@@ -0,0 +1 @@
+use nix

.gitignore

@@ -1,3 +1,7 @@
+# ---> Nix
+.direnv
+result/
+
 # ---> Python
 # Byte-compiled / optimized / DLL files
 __pycache__/

config-example.json

@@ -1,7 +1,7 @@
 {
   "ntfy_base_url": "https://ntfy.sh",
   "ntfy_topic": "nextcloud",
-  "ntfy_auth": "false",
+  "ntfy_auth": false,
   "ntfy_token": "authentication_token",
   
   "nextcloud_base_url": "https://nextcloud.example.com",
@@ -9,6 +9,10 @@
   "nextcloud_username": "user",
   "nextcloud_password": "application_password",
 
+  "heartbeat": false,
+  "heartbeat_url": "url",
+  "heartbeat_interval": 30,
+  
   "nextcloud_poll_interval_seconds": 60,
   "nextcloud_error_sleep_seconds": 600,
   "nextcloud_204_sleep_seconds": 3600,

default.nix

@@ -0,0 +1,17 @@
+# shell.nix
+let
+  # We pin to a specific nixpkgs commit for reproducibility.
+  # Last updated: 2024-04-29. Check for new commits at https://status.nixos.org.
+  pkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/cf8cc1201be8bc71b7cbbbdaf349b22f4f99c7ae.tar.gz") {};
+in pkgs.mkShell {
+  packages = [
+    (pkgs.python311.withPackages (python-pkgs: with python-pkgs; [
+      # select Python packages here
+      python-lsp-server
+      python-lsp-ruff
+      pylsp-mypy
+      pylsp-rope
+      requests
+    ]))
+  ];
+}

nextcloud2ntfy.py

@@ -1,6 +1,7 @@
 import logging as log
 import argparse
 
+import threading
 import requests
 import json
 import base64
@@ -12,17 +13,19 @@ from datetime import datetime
 #   - 1: Response from 'ntfy' was < 400 while pushing notification
 #   - 2: No ntfy authentication token was provided
 #   - 3: Provided 'ntfy' authentication token is invalid
+#   - 4: No heartbeat url was given
 
 log_levels = {
     "DEBUG": log.DEBUG,
     "INFO": log.INFO,
     "WARNING": log.WARNING,
     "ERROR": log.ERROR,
-    "CRITICAL": log.CRITICAL
+    "CRITICAL": log.CRITICAL,
 }
 
+
 # Converts Nextcloud's notification buttons to ntfy.sh notification actions
-def parse_actions(actions: list) -> list:
+def parse_actions(actions: list, nextcloud_auth_header) -> list:
     parsed_actions = []
 
     for action in actions:
@@ -31,7 +34,7 @@ def parse_actions(actions: list) -> list:
             "label": f"{action['label']}",
             "url": f"{action['link']}",
             "method": f"{action['type']}",
-            "clear": True
+            "clear": True,
         }
 
         # The `action['type']` is documented to be a HTTP request.
@@ -40,52 +43,63 @@ def parse_actions(actions: list) -> list:
         if action_parsed["method"] == "WEB":
             del action_parsed["method"]
             action_parsed["action"] = "view"
+        else:
+            action_parsed["headers"] = {
+                "Authorization": f"{nextcloud_auth_header}",
+                "OCS-APIREQUEST": "true",
+            }
 
         parsed_actions.append(action_parsed)
 
     return parsed_actions
 
-def push_to_ntfy(url: str, token: str, topic: str, title: str, click = "", message = "", actions = []) -> requests.Response:
+
+def push_to_ntfy(
+    url: str, token: str, topic: str, title: str, click="", message="", actions=[]
+) -> requests.Response:
     jsonData = {
         "topic": f"{topic}",
         "title": f"{title}",
         "message": f"{message}",
         "click": f"{click}",
-        "actions": actions
+        "actions": actions,
     }
 
     if token != "":
-        response = requests.post(url, 
+        response = requests.post(
-            data=json.dumps(jsonData),
+            url, data=json.dumps(jsonData), headers={"Authorization": f"Bearer {token}"}
-            headers={
+        )
-                "Authorization": f"Bearer {token}"
-            })
     else:
-        response = requests.post(url, 
+        response = requests.post(url, data=json.dumps(jsonData))
-            data=json.dumps(jsonData))
 
     return response
 
+
 # Nextcloud apps have quite often internal names differing from the UI names.
 #  - Eg. `spreed` is `Talk`
 # This is the place to track the differences
-def translate_app_name(app = str) -> str:
+def translate_app_name(app: str) -> str:
     if app == "spreed":
         return "Talk"
     elif app == "event_update_notification":
         return "Calendar"
+    elif app == "twofactor_nextcloud_notification":
+        return "2FA"
     else:
         return app
 
+
 def arg_parser() -> argparse.Namespace:
-    parser = argparse.ArgumentParser(description ='Nextcloud to ntfy.sh notification bridge.')
+    parser = argparse.ArgumentParser(
+        description="Nextcloud to ntfy.sh notification bridge."
+    )
 
     parser.add_argument(
         "--log_level",
         type=str,
         default="INFO",
         choices=["DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"],
-        help="Set the logging level (default: INFO)"
+        help="Set the logging level (default: INFO)",
     )
     parser.add_argument(
         "-c",
@@ -93,30 +107,30 @@ def arg_parser() -> argparse.Namespace:
         type=str,
         default="./config.json",
         required=True,
-        help="Path to the configuration file"
+        help="Path to the configuration file",
     )
 
     return parser.parse_args()
 
+
 def load_config(config_file: str) -> dict:
     # Default values for the configuration
     default_config = {
         "ntfy_base_url": "https://ntfy.sh",
         "ntfy_topic": "nextcloud",
-        "ntfy_auth": "false",
+        "ntfy_auth": False,
         "ntfy_token": "authentication_token",
-        
         "nextcloud_base_url": "https://nextcloud.example.com",
         "nextcloud_notification_path": "/ocs/v2.php/apps/notifications/api/v2/notifications",
-        
         "nextcloud_username": "user",
         "nextcloud_password": "application_password",
-        
+        "heartbeat": False,
+        "heartbeat_url": "url",
+        "heartbeat_interval": 30,
         "nextcloud_poll_interval_seconds": 60,
         "nextcloud_error_sleep_seconds": 600,
         "nextcloud_204_sleep_seconds": 3600,
-        
+        "rate_limit_sleep_seconds": 600,
-        "rate_limit_sleep_seconds": 600
     }
 
     try:
@@ -129,16 +143,25 @@ def load_config(config_file: str) -> dict:
             if key not in config_data:
                 config_data[key] = value
 
-        if config_data["ntfy_auth"] == "false":
+        if config_data["ntfy_auth"] == False:
             config_data["ntfy_token"] == ""
-        elif config_data["ntfy_auth"] == "true" and (
+        elif config_data["ntfy_auth"] == True and (
-                config_data["ntfy_token"] == "" or config_data["ntfy_token"] == "authentication_token"):
+            config_data["ntfy_token"] == ""
-            print("Error: Option 'ntfy_auth' is set to 'true' but not 'ntfy_token' was set!")
+            or config_data["ntfy_token"] == "authentication_token"):
+            print(
+                "Error: Option 'ntfy_auth' is set to 'true' but not 'ntfy_token' was set!"
+            )
             exit(2)
-        elif config_data["ntfy_auth"] == "true" and not config_data["ntfy_token"].startswith("tk_"):
+        elif config_data["ntfy_auth"] == True and not config_data[
+             "ntfy_token" ].startswith("tk_"):
             print("Error: Authentication token set in 'ntfy_token' is invalid!")
             exit(3)
 
+        if config_data["heartbeat"] == True:
+            if config_data["heartbeat_url"] == "url" or config_data["heartbeat_url"] == "":
+                print("Error: 'heartbeat' is set to 'true' but no url was given.")
+                exit(4)
+
         return config_data
 
     except FileNotFoundError:
@@ -149,6 +172,14 @@ def load_config(config_file: str) -> dict:
         print(f"Error decoding JSON from {config_file}. Using default values.")
         return default_config
 
+
+def monitoring_heartbeat(url, interval):
+    while True:
+        response = requests.get(url)
+        log.info("Sent heartbeat.")
+        log.debug(f"Response: {response}")
+        sleep(interval)
+
 def main():
     args = arg_parser()
     config = load_config(args.config_file)
@@ -157,28 +188,47 @@ def main():
         format="{asctime} - {levelname} - {message}",
         style="{",
         datefmt="%d-%m-%Y %H:%M:%S",
-        level=log_levels[args.log_level]
+        level=log_levels[args.log_level],
     )
     log.info("Started Nextcloud to ntfy.sh notification bridge.")
 
+    if config["heartbeat"] == True:
+        heartbeat = threading.Thread(target=monitoring_heartbeat,
+            daemon=True,
+            args=("https://uptime.stfka.eu/api/push/pRCW5ARYxn?status=up&msg=OK&ping=",
+            config["heartbeat_interval"]))
+        heartbeat.start()
+
     last_datetime = datetime.fromisoformat("1970-01-01T00:00:00Z")
-    nextcloud_auth_header = f"Basic {base64.b64encode(f"{config["nextcloud_username"]}:{config["nextcloud_password"]}".encode("utf-8")).decode("utf-8")}"
+    nextcloud_auth_header = f"Basic {base64.b64encode('{}:{}'.format(config['nextcloud_username'], config['nextcloud_password']).encode('utf-8')).decode('utf-8')}"
     nextcloud_request_headers = {
         "Authorization": f"{nextcloud_auth_header}",
         "OCS-APIREQUEST": "true",
-        "Accept": "application/json"
+        "Accept": "application/json",
     }
     while True:
         log.debug("Fetching notifications.")
-        response = requests.get(f"{config["nextcloud_base_url"]}{config["nextcloud_notification_path"]}", headers = nextcloud_request_headers)
+        try:
+            response = requests.get(
+                f"{config['nextcloud_base_url']}{config['nextcloud_notification_path']}",
+                headers=nextcloud_request_headers,
+            )
+        except requests.exceptions.SSLError as e:
+            log.error(f"SSL error fetching notifications. Maybe the server/proxy is down?\n{e}")
         if not response.ok:
-            log.error(f"Error while fetching notifications. Response code: {response.status_code}.")
+            log.error(
-            log.warning(f"Sleeping for {config["nextcloud_error_sleep_seconds"]} seconds.")
+                f"Error while fetching notifications. Response code: {response.status_code}."
+            )
+            log.warning(
+                f"Sleeping for {config['nextcloud_error_sleep_seconds']} seconds."
+            )
             sleep(config["nextcloud_error_sleep_seconds"])
             continue
 
         elif response.status_code == 204:
-            log.debug(f"Got code 204 while fetching notifications. Sleeping for {config["nextcloud_204_sleep_seconds"]/60/60} hour(s).")
+            log.debug(
+                f"Got code 204 while fetching notifications. Sleeping for {config['nextcloud_204_sleep_seconds']/60/60} hour(s)."
+            )
 
         log.debug(f"Got resonse code: {response.status_code}")
 
@@ -189,12 +239,10 @@ def main():
             log.error("Error parsing response from Nextcloud!")
             log.error(f"Response code: {response.status_code}")
             log.error(f"Response body:\n{response.text}")
-            log.error(f"=====================================")
+            log.error("=====================================")
             log.error(f"Exception:\n{e}")
 
-
         for notification in reversed(data["ocs"]["data"]):
-
             if datetime.fromisoformat(notification["datetime"]) <= last_datetime:
                 log.debug("No new notifications.")
                 continue
@@ -203,36 +251,52 @@ def main():
 
             title = ""
             if notification["app"] == "admin_notifications":
-                title = f"Nextcloud: {notification["subject"]}"
+                title = f"Nextcloud: {notification['subject']}"
             else:
-                title = f"Nextcloud - {translate_app_name(notification["app"])}: {notification["subject"]}"
+                title = f"Nextcloud - {translate_app_name(notification['app'])}: {notification['subject']}"
             log.debug(f"Notification title: {title}")
 
             message = notification["message"]
             log.debug(f"Notification message:\n{message}")
 
-            actions = parse_actions(notification["actions"])
+            actions = parse_actions(notification["actions"], nextcloud_auth_header)
-            actions.append({
+            actions.append(
+                {
                     "action": "http",
                     "label": "Dismiss",
-                "url": f"{config["nextcloud_base_url"]}{config["nextcloud_notification_path"]}/{notification["notification_id"]}",
+                    "url": f"{config['nextcloud_base_url']}{config['nextcloud_notification_path']}/{notification['notification_id']}",
                     "method": "DELETE",
                     "headers": {
                         "Authorization": f"{nextcloud_auth_header}",
-                    "OCS-APIREQUEST": "true"
+                        "OCS-APIREQUEST": "true",
                     },
-                "clear": True
+                    "clear": True,
-            })
+                }
+            )
             log.debug(f"Notification actions:\n{actions}")
 
-            log.info(f"Pushing notification to ntfy.")
+            log.info("Pushing notification to ntfy.")
 
-            response = push_to_ntfy(config["ntfy_base_url"], config["ntfy_token"], config["ntfy_topic"], title, notification["link"], message, actions)
+            response = push_to_ntfy(
+                config["ntfy_base_url"],
+                config["ntfy_token"],
+                config["ntfy_topic"],
+                title,
+                notification["link"],
+                message,
+                actions,
+            )
             if response.status_code == 429:
-                log.error(f"Error pushing notification to {config["ntfy_base_url"]}: Too Many Requests.")
+                log.error(
-                log.warning(f"Sleeping for {config["rate_limit_sleep_seconds"]} seconds.")
+                    f"Error pushing notification to {config['ntfy_base_url']}: Too Many Requests."
+                )
+                log.warning(
+                    f"Sleeping for {config['rate_limit_sleep_seconds']} seconds."
+                )
             elif not response.ok:
-                log.critical(f"Unknown erroro while pushing notification to {config["ntfy_base_url"]}. Error code: {response.status_code}.")
+                log.critical(
+                    f"Unknown erroro while pushing notification to {config['ntfy_base_url']}. Error code: {response.status_code}."
+                )
                 log.critical(f"Response: {response.text}")
                 log.error("Stopping.")
                 exit(1)