Async UPnP Client

Asyncio UPnP Client library for Python/asyncio.

Written initially for use in Home Assistant to drive DLNA DMR-capable devices, but useful for other projects as well.

Status

Contributing

See CONTRIBUTING.rst.

Usage

See examples/ for examples on how to use async_upnp_client.

Development

Development is done on the development branch.

pre-commit is used to run several checks before committing. You can install pre-commit and the git-hook by doing:

$ pip install pre-commit
$ pre-commit --install

Releasing

Steps for releasing:

• Switch to master: git checkout master
• Merge development to master: git merge development
• Update setup.py to set version and commit: git add setup.py && git commit -m "Releasing <version>"
• Tag release: git tag <version>
• Checkout tag: git checkout <version>
• Build: rm -rf build dist && python setup.py build sdist
• Upload using twine: twine upload dist/*
• Switch to development: git checkout development
• Merge master to development: git merge master
• Update setup.py to set version and commit git add setup.py && git commit -m "Continuing development"
• Push to github: git push --all && git push --tags

upnp-client

A command line interface is provided via the upnp-client script. This script can be used to:

• call an action
• subscribe to services and listen for events
• show UPnP traffic (--debug-traffic) from and to the device
• show pretty printed JSON (--pprint) for human readability
• search for devices
• listen for advertisements

The output of the script is a single line of JSON for each action-call or subscription-event. See the programs help for more information.

An example of calling an action:

$ upnp-client --pprint call-action http://192.168.178.10:49152/description.xml RC/GetVolume InstanceID=0 Channel=Master
{
    "timestamp": 1531482271.5603056,
    "service_id": "urn:upnp-org:serviceId:RenderingControl",
    "service_type": "urn:schemas-upnp-org:service:RenderingControl:1",
    "action": "GetVolume",
    "in_parameters": {
        "InstanceID": 0,
        "Channel": "Master"
    },
    "out_parameters": {
        "CurrentVolume": 70
    }
}

An example of subscribing to all services, note that the program stays running until you stop it (ctrl-c):

$ upnp-client --pprint subscribe http://192.168.178.10:49152/description.xml \*
{
    "timestamp": 1531482518.3663802,
    "service_id": "urn:upnp-org:serviceId:RenderingControl",
    "service_type": "urn:schemas-upnp-org:service:RenderingControl:1",
    "state_variables": {
        "LastChange": "<Event xmlns=\"urn:schemas-upnp-org:metadata-1-0/AVT_RCS\">\n<InstanceID val=\"0\">\n<Mute channel=\"Master\" val=\"0\"/>\n<Volume channel=\"Master\" val=\"70\"/>\n</InstanceID>\n</Event>\n"
    }
}
{
    "timestamp": 1531482518.366804,
    "service_id": "urn:upnp-org:serviceId:RenderingControl",
    "service_type": "urn:schemas-upnp-org:service:RenderingControl:1",
    "state_variables": {
        "Mute": false,
        "Volume": 70
    }
}
...

You can subscribe to list of services by providing these names or abbreviated names, such as:

$ upnp-client --pprint subscribe http://192.168.178.10:49152/description.xml RC AVTransport

An example of searching for devices:

$ upnp-client --pprint search
{
    "Cache-Control": "max-age=3600",
    "Date": "Sat, 27 Oct 2018 10:43:42 GMT",
    "EXT": "",
    "Location": "http://192.168.178.1:49152/description.xml",
    "OPT": "\"http://schemas.upnp.org/upnp/1/0/\"; ns=01",
    "01-NLS": "906ad736-cfc4-11e8-9c22-8bb67c653324",
    "Server": "Linux/4.14.26+, UPnP/1.0, Portable SDK for UPnP devices/1.6.20.jfd5",
    "X-User-Agent": "redsonic",
    "ST": "upnp:rootdevice",
    "USN": "uuid:e3a17dd5-9d85-3131-3c34-b827eb498d72::upnp:rootdevice",
    "_timestamp": "2018-10-27 12:43:09.125408",
    "_host": "192.168.178.1",
    "_port": 49152
    "_udn": "uuid:e3a17dd5-9d85-3131-3c34-b827eb498d72",
    "_source": "search"
}

An example of listening for advertisements, note that the program stays running until you stop it (ctrl-c):

$ upnp-client --pprint advertisements
{
    "Host": "239.255.255.250:1900",
    "Cache-Control": "max-age=30",
    "Location": "http://192.168.178.1:1900/WFADevice.xml",
    "NTS": "ssdp:alive",
    "Server": "POSIX, UPnP/1.0 UPnP Stack/2013.4.3.0",
    "NT": "urn:schemas-wifialliance-org:device:WFADevice:1",
    "USN": "uuid:99cb221c-1f15-c620-dc29-395f415623c6::urn:schemas-wifialliance-org:device:WFADevice:1",
    "_timestamp": "2018-12-23 11:22:47.154293",
    "_host": "192.168.178.1",
    "_port": 1900
    "_udn": "uuid:99cb221c-1f15-c620-dc29-395f415623c6",
    "_source": "advertisement"
}

Abstractions

• DLNA Digital Media Renderer (DLNA DMR) devices
  • Primarily built for use with Home Assistant, but might be useful in other projects too.
• Internet Gateway Devices (IGD)
• Printers