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Logic Machine Forum › LogicMachine eco-system › Scripting v
Remote control of Philips TV with json

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Remote control of Philips TV with json
baggins Offline
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Posts: 184
Threads: 39
Joined: Sep 2015
Reputation: 4
#1
29.12.2016, 15:09
Hi,

I'm trying to write a script to control a Philips TV with json.
Based on an example in thread: http://forum.logicmachine.net/showthread...light=POST

I'm trying the following:


Code:
require('json')
require('socket.url')
require('socket.http')

fields = {key = "CursorLeft",}
data = json.encode(fields)
print(data)
post = 'data=' .. socket.url.escape(data)
print (post)
ip = '192.168.0.232:1925'

res, err = socket.http.request('http://'.. ip .. '/1/input/key', post)

print(res)
print( err)

This fails:


Code:
{"key":"CursorLeft"}
data=%7b%22key%22%3a%22CursorLeft%22%7d
<html><head><title>Bad Request</title></head><body>Bad Request</body></html>
400


Philips TV use Jointspace. Manual page for POST: http://jointspace.sourceforge.net/projec...-POST.html

Any  tips?
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admin Offline
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Posts: 7758
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Joined: Jun 2015
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#2
30.12.2016, 09:58
Can you check if any GET methods are working?
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baggins Offline
Member
Posts: 184
Threads: 39
Joined: Sep 2015
Reputation: 4
#3
30.12.2016, 10:21
After a long session with Wireshark I gave up on this script...

I now use the following script which works:


Code:
require('json')
require('socket.url')
require('socket.http')
local ltn12 = require("ltn12")

path = "http://192.168.0.232:1925/1/input/key"
local payload = [[{"key" : "CursorLeft"}]]
print(payload)
local response_body = { }
local res, code, response_headers, status = socket.http.request
 {
   url = path,
   method = "POST",
   headers =
   {
         ["Content-Type"] = "application/json",
         ["Content-Length"] = payload:len()
   },
  source = ltn12.source.string(payload),
   sink = ltn12.sink.table(response_body)
 }

print('Response: = ' .. table.concat(response_body) .. ' code = ' .. code .. '   status = ' .. status,1,'Sample POST request with JSON data',-1)
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admin Offline
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Posts: 7758
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Joined: Jun 2015
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#4
30.12.2016, 10:26
Probably it didn't work without proper Content-Type header.
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