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Resolve hosts for fritzbox_callmonitor (#28761)

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* Resolve hosts for fritzbox_callmonitor

If the configuration supplied "host" is not an IP address, try resolving it

* always use gethostbyname

Instead of just checking whether it is an IP and if it isn't try to resolve; just resolve it; IPs will be returned unchanged, and hostnames will be resolved.

* Catch error if the hostname cannot be resolved

* Don't fallback to default host

If the hostname cannot be resolved; don't try to fallback; just print the error message.

* Fail setup if hostname cannot be resolved

If the hostname cannot be resolved, log an error and stop the setup;
no entities will be then created.
This commit is contained in:
guillempages 2019-11-28 21:14:20 +01:00 committed by Fabian Affolter
parent daed314585
commit 26e674b4c3
1 changed files with 6 additions and 0 deletions
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6
homeassistant/components/fritzbox_callmonitor/sensor.py
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@ -60,6 +60,12 @@ def setup_platform(hass, config, add_entities, discovery_info=None):
"""Set up Fritz!Box call monitor sensor platform.""" """Set up Fritz!Box call monitor sensor platform."""
name = config.get(CONF_NAME) name = config.get(CONF_NAME)
host = config.get(CONF_HOST) host = config.get(CONF_HOST)
# Try to resolve a hostname; if it is already an IP, it will be returned as-is
try:
host = socket.gethostbyname(host)
except socket.error:
_LOGGER.error("Could not resolve hostname %s", host)
return
port = config.get(CONF_PORT) port = config.get(CONF_PORT)
username = config.get(CONF_USERNAME) username = config.get(CONF_USERNAME)
password = config.get(CONF_PASSWORD) password = config.get(CONF_PASSWORD)