Add Gammu based local SMS notifications (#31233)

* Add sms integration

Committer: ocalvo <oscar@calvonet.com>

* Fix PyLint

* Update requirements

homeassistant/components/sms/__init__.py

@@ -0,0 +1,33 @@
+"""The sms component."""
+import logging
+
+import gammu  # pylint: disable=import-error, no-member
+import voluptuous as vol
+
+from homeassistant.const import CONF_DEVICE
+from homeassistant.helpers import config_validation as cv
+
+from .const import DOMAIN
+
+_LOGGER = logging.getLogger(__name__)
+
+CONFIG_SCHEMA = vol.Schema(
+    {DOMAIN: vol.Schema({vol.Required(CONF_DEVICE): cv.isdevice})},
+    extra=vol.ALLOW_EXTRA,
+)
+
+
+async def async_setup(hass, config):
+    """Configure Gammu state machine."""
+    conf = config[DOMAIN]
+    device = conf.get(CONF_DEVICE)
+    gateway = gammu.StateMachine()  # pylint: disable=no-member
+    try:
+        gateway.SetConfig(0, dict(Device=device, Connection="at"))
+        gateway.Init()
+    except gammu.GSMError as exc:  # pylint: disable=no-member
+        _LOGGER.error("Failed to initialize, error %s", exc)
+        return False
+    else:
+        hass.data[DOMAIN] = gateway
+        return True

homeassistant/components/sms/const.py

@@ -0,0 +1,3 @@
+"""Constants for sms Component."""
+
+DOMAIN = "sms"

homeassistant/components/sms/manifest.json

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+{
+  "domain": "sms",
+  "name": "SMS notifications via GSM-modem",
+  "documentation": "https://www.home-assistant.io/integrations/sms",
+  "requirements": ["python-gammu==2.12"],
+  "dependencies": [],
+  "codeowners": ["@ocalvo"]
+}

homeassistant/components/sms/notify.py

@@ -0,0 +1,47 @@
+"""Support for SMS notification services."""
+import logging
+
+import gammu  # pylint: disable=import-error, no-member
+import voluptuous as vol
+
+from homeassistant.components.notify import PLATFORM_SCHEMA, BaseNotificationService
+from homeassistant.const import CONF_NAME, CONF_RECIPIENT
+import homeassistant.helpers.config_validation as cv
+
+from .const import DOMAIN
+
+_LOGGER = logging.getLogger(__name__)
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
+    {vol.Required(CONF_RECIPIENT): cv.string, vol.Optional(CONF_NAME): cv.string}
+)
+
+
+def get_service(hass, config, discovery_info=None):
+    """Get the SMS notification service."""
+    gateway = hass.data[DOMAIN]
+    number = config[CONF_RECIPIENT]
+    return SMSNotificationService(gateway, number)
+
+
+class SMSNotificationService(BaseNotificationService):
+    """Implement the notification service for SMS."""
+
+    def __init__(self, gateway, number):
+        """Initialize the service."""
+        self.gateway = gateway
+        self.number = number
+
+    def send_message(self, message="", **kwargs):
+        """Send SMS message."""
+        # Prepare message data
+        # We tell that we want to use first SMSC number stored in phone
+        gammu_message = {
+            "Text": message,
+            "SMSC": {"Location": 1},
+            "Number": self.number,
+        }
+        try:
+            self.gateway.SendSMS(gammu_message)
+        except gammu.GSMError as exc:  # pylint: disable=no-member
+            _LOGGER.error("Sending to %s failed: %s", self.number, exc)