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Cant use HTTPProxy with puck #1

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otbe opened this issue Dec 9, 2016 · 6 comments
Closed

Cant use HTTPProxy with puck #1

otbe opened this issue Dec 9, 2016 · 6 comments

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@otbe
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otbe commented Dec 9, 2016

Hi,

I try to setup my pi as an espruino hub to allow my pucks to do some http requests, but for some reason it wont work :/

From your basic example I get this on the puck:

Connected
Got service
Got characteristic
Set URI
Uncaught Error: Unhandled promise rejection: No Characteristics found

and on my pi I get:

Config loaded
MQTT Connected
<HTTPProxy> Bleno State poweredOn
<HTTPProxy> Bleno.startAdvertising Success
<HTTPProxy> Bleno.setServices Success
Scanning started...
<HTTPProxy> c9:88:f0:97:da:57 connected (whitelisted: undefined)
BLE broken? No advertising packets in 10 seconds - restarting!

Fri Dec 09 2016 20:58:39 GMT+0100 (CET)

47:4d:3d:fd:7b:07 - ? (RSSI -64)
7a:3f:6d:0d:d0:bf - ? (RSSI -72)
ac:bc:32:d2:90:e0 - ? (RSSI -71)
d0:4f:7e:19:13:7d - ? (RSSI -54)
puck1 - Puck.js da57 (RSSI -75)

After some time the process exits. This is my config.json

{
  "// If a device's address is here, it'll be given a human-readable name":0,
  "known_devices" : {
    "c9:88:f0:97:da:57" : "puck1"
  },

  "// Set this to enable the HTTP proxy - it's off by default for safety":0,
  "// since it would be possible to spoof MAC addresses and use your":0,
  "// connection":0,
  "http_proxy" : true,

  "// If there are any addresses here, they are given access to the HTTP proxy":0,
  "http_whitelist" : [
    "c9:88:f0:97:da:57"
  ]
}

Any hints? :)

Thanks!
@gfwilliams
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Can you check the pi with your phone and 'nrf connect'? My guess is it doesn't have services.

I don't have my pc handy at the moment, but have a look at bleno's NPM docs. I seem to recall you have to do something like disabling the Bluetooth service - I may have missed that out of the docs

@otbe
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otbe commented Dec 9, 2016

You're correct. I forgot to:

# Stop the bluetooth service
sudo service bluetooth stop
# Start Bluetooth but without bluetoothd
sudo hciconfig hci0 up

But there is another problem, because my requests are blocked :)
I guess the config.js don't read http_proxy and it seems to me that it is not used anywhere in the code except for this.
I created #2 to solve this problem and all seems to work very well 👍

Thanks!

P.S.: Is there any way to do a PUT/POST request?

@gfwilliams
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Thanks! Sorry, totally my fault there :)

Yeah, you'd have to change the code in the Puck module http://www.espruino.com/modules/ble_http.js

There's a comment that says 'http get' - just change the number 1 to one of the values from the http proxy spec

@otbe
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otbe commented Dec 9, 2016

Thanks :)

Its a bit pointless because of the 20 bytes limit. Even the urls are too large :)

Will close this issue now, thank you very much :)

@otbe otbe closed this as completed Dec 9, 2016
@gfwilliams
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No problem. I think BLE 5 handles up to 512 bytes, which makes it a lot more useful. Support for that will come eventually

@otbe
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otbe commented Dec 10, 2016

Nice. Please let me know if I can do something to get BLE5 alive :)

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@gfwilliams @otbe