Simple library/command-line-utility to control a EDIMAX Smart Plug Switch (SP-1101W) from Python

smartplug.py

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# Copyright (c) 2014 Stefan Wendler
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__author__ = 'Stefan Wendler, sw@kaltpost.de'

import requests as req
import optparse as par
import logging as log

from xml.dom.minidom import getDOMImplementation
from xml.dom.minidom import parseString


class SmartPlug(object):

    """
    Simple class to access a "EDIMAX Smart Plug Switch SP-1101W"

    Usage example when used as library:

    p = SmartPlug("172.16.100.75", ('admin', '1234'))

    p.state = "OFF"
    p.state = "ON"
    print(p.state)

    Usage example when used as command line utility:

    turn plug on:

    python smartplug.py -H 172.16.100.75 -l admin -p 1234 -s ON

    turn plug off:

    python smartplug.py -H 172.16.100.75-l admin -p 1234 -s OFF

    get plug state:

    python smartplug.py -H 172.16.100.75-l admin -p 1234 -g

    """

    def __init__(self, host, auth):

        """
        Create a new SmartPlug instance identified by the given URL.

        :rtype : object
        :param host: The IP/hostname of the SmartPlug. E.g. '172.16.100.75'
        :param auth: User and password to authenticate with the plug. E.g. ('admin', '1234')
        """

        self.url = "http://%s:10000/smartplug.cgi" % host
        self.auth = auth
        self.domi = getDOMImplementation()

    def __xml_cmd(self, cmdId, cmdStr):

        """
        Create XML representation of a command.

        :param cmdId: Use 'get' to request plug state, use 'setup' change plug state.
        :param cmdStr: Empty string for 'get', 'ON' or 'OFF' for 'setup'
        :return: XML representation of command
        """

        doc = self.domi.createDocument(None, "SMARTPLUG", None)
        doc.documentElement.setAttribute("id", "edimax")

        cmd = doc.createElement("CMD")
        cmd.setAttribute("id", cmdId)
        state = doc.createElement("Device.System.Power.State")
        cmd.appendChild(state)
        state.appendChild(doc.createTextNode(cmdStr))

        doc.documentElement.appendChild(cmd)

        return doc.toxml()

    def __post_xml(self, xml):

        """
        Post XML command  as multipart file to SmartPlug, parse XML response.

        :param xml: XML representation of command (as generated by __xml_cmd)
        :return: 'OK' on success, 'FAILED' otherwise
        """

        files = {'file': xml}

        res = req.post(self.url, auth=self.auth, files=files)

        if res.status_code == req.codes.ok:
            dom = parseString(res.text)

            try:
                val = dom.getElementsByTagName("CMD")[0].firstChild.nodeValue

                if val is None:
                    val = dom.getElementsByTagName("CMD")[0].getElementsByTagName("Device.System.Power.State")[0].\
                        firstChild.nodeValue

                return val

            except Exception as e:

                print(e.__str__())

        return None

    @property
    def state(self):

        """
        Get the current state of the SmartPlug.

        :return: 'ON' or 'OFF'
        """

        res = self.__post_xml(self.__xml_cmd("get", ""))

        if res != "ON" and res != "OFF":
            raise Exception("Failed to communicate with SmartPlug")

        return res

    @state.setter
    def state(self, value):

        """
        Set the state of the SmartPlug

        :param value: 'ON', 'on', 'OFF' or 'off'
        """

        if value == "ON" or value == "on":
            res = self.__post_xml(self.__xml_cmd("setup", "ON"))
        else:
            res = self.__post_xml(self.__xml_cmd("setup", "OFF"))

        if res != "OK":
            raise Exception("Failed to communicate with SmartPlug")

if __name__ == "__main__":

    # this turns on debugging from requests library
    log.basicConfig(level=log.DEBUG, format='%(asctime)s - %(levelname)s - %(message)s')

    usage = "%prog [options]"

    parser = par.OptionParser(usage)

    parser.add_option("-H", "--host",  default="172.16.100.75", help="Base URL of the SmartPlug")
    parser.add_option("-l", "--login",  default="admin", help="Login user to authenticate with SmartPlug")
    parser.add_option("-p", "--password",  default="1234", help="Password to authenticate with SmartPlug")

    parser.add_option("-g", "--get",  action="store_true", help="Get state of plug")
    parser.add_option("-s", "--set",  help="Set state of plug: ON or OFF")

    (options, args) = parser.parse_args()

    try:

        p = SmartPlug(options.host, (options.login, options.password))

        if options.get:
            print(p.state)
        elif options.set:
            p.state = options.set

    except Exception as e:
        print(e.__str__())

I have the same problem. The new firmware has a completely new interface.
Currently I can switch with the new firmware and my java api (https://gist.github.com/agent4788/6447f030b32c182550476dda068453cf) only the socket on / off. But the password must be 123456789. The new authentication method is a challenge / response procedure, the task for it is however unknown, only fragments and the result.

Seems that since firmware 2.04 they switched from http basic auth to http digest auth.
This works for me: https://gist.github.com/derbot/15f444d679c672ae3edc03f4b5b3897b

Läuft es bei euch mit der aktuellen Version?
Wenn ich das Script per curl aufrufe, muss ich den Befehl auf die neue auth-Methode anpassen?
Aktueller Status:
python smartplug.py -H 192.168.43.228 -l admin -p 1234 -s ON
2017-12-07 17:28:32,729 - DEBUG - Starting new HTTP connection (1): 192.168.43.228
2017-12-07 17:28:32,764 - DEBUG - http://192.168.43.228:10000 "POST /smartplug.cgi HTTP/1.1" 401 333
2017-12-07 17:28:32,799 - DEBUG - http://192.168.43.228:10000 "POST /smartplug.cgi HTTP/1.1" 401 333
Failed to communicate with SmartPlug

Ich habe mir die Edimax SP-1101W gekauft mit der Hoffnung, endlich eine Steckdose zu haben, die ich mit dem PI schalten kann. Jetzt merke ich erst, dass dies doch nicht funktioniert. Zumindest nicht mit dem obigen Script und schon gar nicht mit der aktuellen Firmware 3.0.1.
Ich bekomme den gleichen Fehler wie Tutti86 angezeigt. Hat denn niemand eine Idee, wie sich die Steckdose vom RaspberryPI schalten lässt?

Mit den aktuellen Firmwares (Stichwort: EdiSmart / Alexa Integration) gibt es Probleme. Ich vermute mal, dass nun zusätzlich TLS Verschlüsselung erforderlich ist. Demnächst mehr.

mwittig/edimax-smartplug#8

Leider geht das script nicht mehr :(

https://discourse.nodered.org/t/searching-for-help-to-read-status-of-edimax-smartplug/15789/6 scheint zu funktionieren