Add mastodon (#13441)

* Add mastodon

* Move login

* Revert "Move login"

This reverts commit 2c8446f62950f91c0ebfc0b4825e87421ac653fc.

.coveragerc

@@ -507,6 +507,7 @@ omit =
     homeassistant/components/notify/kodi.py
     homeassistant/components/notify/lannouncer.py
     homeassistant/components/notify/llamalab_automate.py
+    homeassistant/components/notify/mastodon.py
     homeassistant/components/notify/matrix.py
     homeassistant/components/notify/message_bird.py
     homeassistant/components/notify/mycroft.py
@@ -522,8 +523,8 @@ omit =
     homeassistant/components/notify/sendgrid.py
     homeassistant/components/notify/simplepush.py
     homeassistant/components/notify/slack.py
-    homeassistant/components/notify/stride.py
     homeassistant/components/notify/smtp.py
+    homeassistant/components/notify/stride.py
     homeassistant/components/notify/synology_chat.py
     homeassistant/components/notify/syslog.py
     homeassistant/components/notify/telegram.py

homeassistant/components/notify/mastodon.py

@@ -0,0 +1,70 @@
+"""
+Mastodon platform for notify component.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/notify.mastodon/
+"""
+import logging
+
+import voluptuous as vol
+
+from homeassistant.components.notify import (
+    PLATFORM_SCHEMA, BaseNotificationService)
+from homeassistant.const import CONF_ACCESS_TOKEN
+import homeassistant.helpers.config_validation as cv
+
+REQUIREMENTS = ['Mastodon.py==1.2.2']
+
+_LOGGER = logging.getLogger(__name__)
+
+CONF_BASE_URL = 'base_url'
+CONF_CLIENT_ID = 'client_id'
+CONF_CLIENT_SECRET = 'client_secret'
+
+DEFAULT_URL = 'https://mastodon.social'
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_ACCESS_TOKEN): cv.string,
+    vol.Required(CONF_CLIENT_ID): cv.string,
+    vol.Required(CONF_CLIENT_SECRET): cv.string,
+    vol.Optional(CONF_BASE_URL, default=DEFAULT_URL): cv.string,
+})
+
+
+def get_service(hass, config, discovery_info=None):
+    """Get the Mastodon notification service."""
+    from mastodon import Mastodon
+    from mastodon.Mastodon import MastodonUnauthorizedError
+
+    client_id = config.get(CONF_CLIENT_ID)
+    client_secret = config.get(CONF_CLIENT_SECRET)
+    access_token = config.get(CONF_ACCESS_TOKEN)
+    base_url = config.get(CONF_BASE_URL)
+
+    try:
+        mastodon = Mastodon(
+            client_id=client_id, client_secret=client_secret,
+            access_token=access_token, api_base_url=base_url)
+        mastodon.account_verify_credentials()
+    except MastodonUnauthorizedError:
+        _LOGGER.warning("Authentication failed")
+        return None
+
+    return MastodonNotificationService(mastodon)
+
+
+class MastodonNotificationService(BaseNotificationService):
+    """Implement the notification service for Mastodon."""
+
+    def __init__(self, api):
+        """Initialize the service."""
+        self._api = api
+
+    def send_message(self, message="", **kwargs):
+        """Send a message to a user."""
+        from mastodon.Mastodon import MastodonAPIError
+
+        try:
+            self._api.toot(message)
+        except MastodonAPIError:
+            _LOGGER.error("Unable to send message")

requirements_all.txt

@@ -24,6 +24,9 @@ DoorBirdPy==0.1.3
 # homeassistant.components.homekit
 HAP-python==1.1.7
 
+# homeassistant.components.notify.mastodon
+Mastodon.py==1.2.2
+
 # homeassistant.components.isy994
 PyISY==1.1.0