Philips Hue Authentication

[Erwin van der Zwart]

Hi Koen,

Philips have changed the API due homekit support.

Use this to control your HUE devices with latest HUE FW update :

First run bridgeSetup() once to receive the user (see log after running) and enter where now "xxxxxxxxxxxxxxxxxx' is filled in.

Code:

require('json') require('socket.http') require("ltn12") --************************************************ ip_add = '192.168.1.25' user = "XXXXXXXXXXXXXXXXXXXXX"    -- Response from bridgeSetup() --************************************************ response = {} function bridgeSetup()  body_bridgeSetup= '{"devicetype":"homelynk#homelynk"}'  -- Set username for homeLYnk     socket.http.request({      url = "http://"..ip_add.."/api",   method = 'POST',     sink = ltn12.sink.table(response),  headers = {      ['content-length'] = #body_bridgeSetup,        ['content-type'] = 'application/json',            },    source = ltn12.source.string(body_bridgeSetup),        })     log(response) end function checkUser()   body_bridgeSetup= '{}'  -- Set username for homeLYnk     socket.http.request({      url = "http://"..ip_add.."/api/"..user,   method = 'GET',     sink = ltn12.sink.table(response),  headers = {      ['content-length'] = #body_bridgeSetup,        ['content-type'] = 'application/json',            },    source = ltn12.source.string(body_bridgeSetup),        })     log(response)  ret = table.concat(response)     data = json.pdecode(ret)    if (data[1].error.type)==1 then    log("Hue bridge user is not set")    return false  else    log("Hue bridge user is set")    return true  end   end function searchHueLights()  body_searchHueLights= ''  -- Set username for homeLYnk     socket.http.request({      url = "http://"..ip_add.."/api/"..user.."/lights",   method = 'POST',     sink = ltn12.sink.table(response),  headers = {      ['content-length'] = #body_searchHueLights,        ['content-type'] = 'application/json',            },    source = ltn12.source.string(body_searchHueLights),        })     log(response) end function sendToLight(Light_num,body_request)  socket.http.request({      url = "http://"..ip_add.."/api/"..user.."/lights/"..tostring(Light_num).."/state",   method = 'PUT',     sink = ltn12.sink.table(response),  headers = {        ['content-length'] = #body_request,        ['content-type'] = 'application/json',            },      source = ltn12.source.string(body_request),        })     --log(response) end function sendToGroup(Group_num,body_request)  socket.http.request({      url = "http://"..ip_add.."/api/"..user.."/groups/"..tostring(Light_num).."/action",   method = 'PUT',     sink = ltn12.sink.table(response),  headers = {        ['content-length'] = #body_request,        ['content-type'] = 'application/json',            },      source = ltn12.source.string(body_request),        })     --log(response) end function setRGB(Light_num,RGB_variable) --RGB color set in homeLYnk Red=bit.rshift(bit.band(RGB_variable,0xff0000),16) Green=bit.rshift(bit.band(RGB_variable,0x00ff00),8) Blue=bit.band(RGB_variable,0x0000ff) -- Norm of RGB values Red_f=    Red/255 Green_f=Green/255 Blue_f=    Blue/255 --Gamma correction if Red_f>0.04045 then  Red_f=((Red_f+0.055)/(1+0.055))^2.4 else  Red_f=Red_f/12.92 end if Green_f>0.04045 then  Green_f=((Green_f+0.055)/(1+0.055))^2.4 else  Green_f=Green_f/12.92 end if Blue_f>0.04045 then  Blue_f=((Blue_f+0.055)/(1+0.055))^2.4 else  Blue_f=Red_f/12.92 end --Coversion RGB->xy X=Red_f*0.649926+Green_f*0.103455+Blue_f*0.197109 Y=Red_f*0.234327+Green_f*0.743075+Blue_f*0.022598 Z=Green_f*0.053077+Blue_f*1.035763 x=X/(X+Y+Z) y=Y/(X+Y+Z) --HTTP request send body_msg = '{"on":true,"xy":['..x..','..y..']}' sendToLight(Light_num,body_msg)   end

 
Sample to set RGB value from color picker object event based script:

Code:

value = event.getvalue() lamp_id = 1 if value == 0 then  body_msg = '{"on":false}'  sendToLight(lamp_id,body_msg) else  setRGB(lamp_id,value) end

Good luck (:

BR,
Erwin