is there a command or a way to find how good or bad is the Geoclue Demo Agent?

Question

In startup applications in Debian (as possibly other debian and ubuntu based distros.) there is a library called Geoclue Demo agent, the actual library with path is

/usr/libexec/geoclue-2.0/demos/agent

which is part of geoclue-2.0 https://gitlab.freedesktop.org/geoclue/geoclue/wikis/home .

The only question I know which has been asked so far is to remove the app/service. See the question from unix.stackexchange.com .

I would find it more interesting if I could understand what it shows and how it shows it. The manpage written about man geoclue isn't addressed for ordinary users.

Can somebody help me with that ? I am looking on lines something simple as curl wttr.in/$location and you get output of weather of that location. Something which is interactive and it probably is, just need to figure out how.

furas · Answer 1 · 2021-04-08T14:13:47.887

On Stackoverflow I found question: How do I get Geoclue Geolocation in Python?

After installing module to work with GeoGlue

apt install gir1.2-geoclue-2.0

I created script geolocation.py in python

#!/usr/bin/env python

import gi
gi.require_version('Geoclue', '2.0')
from gi.repository import Geoclue

clue = Geoclue.Simple.new_sync('something', Geoclue.AccuracyLevel.NEIGHBORHOOD, None)

location = clue.get_location()

latitude  = location.get_property('latitude')
longitude = location.get_property('longitude')

print('{},{}'.format(latitude, longitude))

which gives latitude,longtiture in bash

python getlocation.py

and I can use it directly with wttr.in

curl wttr.in/$(python getlocation.py)

If I set attribute executable

chmod u+x geolocation.py

then I can even run it without python - it will use value from shebang (#!/usr/bin/env python)

I can even remove extension .py and keep name geolocation and then it will looks like

curl wttr.in/$(getlocation)

(it has to be in $( ) to execute it as separated process)

I can also use directly python to get value from server

#!/usr/bin/env python

import gi
gi.require_version('Geoclue', '2.0')

from gi.repository import Geoclue

clue = Geoclue.Simple.new_sync('something', Geoclue.AccuracyLevel.NEIGHBORHOOD, None)
location = clue.get_location()

latitude  = location.get_property('latitude')
longitude = location.get_property('longitude')

#print('latitude :', latitude)
#print('longitude:', longitude)

import requests

url = 'https://wttr.in/{},{}'.format(latitude, longitude)

# to get it as HTML instead of TEXT (see PLAIN_TEXT_AGENTS in https://github.com/chubin/wttr.in/blob/master/lib/globals.py#L75)
#response = requests.get(url, headers={'User-Agent': ''}) #{'User-Agent': 'Mozilla/5.0'}

response = requests.get(url)

print(response.text)

If I would add ?format=j1 at the end of url

https://wttr.in/{},{}?format=j1

then I would get it as JSON which I could convert to dictionary in python and I would format data in different way.

Tested on Linix Mint 20, Python 3.8, Python 2.7

By The Way:

It seems wttr.in uses program wego which runs in terminal.

It seems geoclue uses different methods to recognize location but in my situation it probably used IP to recognize it - but my Internet Provider can change my IP every 24h and this IP can be used by users in different places so sometimes it gives incorrect locations. In this moment it gives me location almost 30km away from my place - and later wttr.in gives different weather.

Some web servers use GeoIP from MaxMind to convert IP to location - but it has the same problem when user IP is changed every few hours. As I remeber it can be used by HTTP requests or you can download database with information and use it locally (but you have to update database from time to time)

is there a command or a way to find how good or bad is the Geoclue Demo Agent?

1 Answers1