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#!/usr/bin/env python3
#
# Copyright 2019 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import argparse
import base64
import configparser
import http
import json
import os
import sys
import urllib.request
CONFIG_FILENAME = os.path.expanduser('~/.config/effitool/credentials.conf')
JSON = 'application/json'
URLENC = 'application/x-www-form-urlencoded'
class Config:
def __init__(self):
self._cp = configparser.ConfigParser()
def read(self, filename):
with open(filename) as f:
self._cp.read_file(f)
def dump(self, f):
self._cp.write(f)
def servers(self):
return [k for k in self._cp.keys() if k != 'DEFAULT']
def get_default_server(self):
sections = self._cp.sections()
if len(sections) != 1:
raise Exception('Config must have exactly one server')
return sections[0]
def get(self, name):
server = self._cp[name]
return {
'url': server['url'],
'client_id': server['client_id'],
'client_secret': server['client_secret'],
}
class HTTPAPI:
def __init__(self, url):
self._url = url
def url(self, path):
return '{}{}'.format(self._url, path)
def get_json(self, r):
ok = (http.HTTPStatus.OK, http.HTTPStatus.CREATED)
status = r.getcode()
if status not in ok:
raise Exception('Got HTTP status {}'.format(status))
info = r.info()
ct = info.get_content_type()
if ct != JSON:
raise Exception('Response is not JSON: {}'.ct)
body = r.read()
return json.loads(body)
def get(self, path):
url = self.url(path)
with urllib.request.urlopen(url) as r:
return self.get_json(r)
def get_access_token(self, client_id, client_secret, scopes):
obj = self.post_form(
'/token', client_id, client_secret,
grant_type='client_credentials', scope=' '.join(scopes))
return obj['access_token']
def post_form(self, path, user, password, **kwargs):
url = self.url(path)
host, port, path = self.parse_url(url)
data = urllib.parse.urlencode(kwargs).encode('UTF-8')
headers = {
'Content-type': URLENC,
'Authorization': self.get_authorization(user, password),
}
req = urllib.request.Request(
url, data=data, headers=headers, method='POST')
r = urllib.request.urlopen(req)
return self.get_json(r)
def parse_url(self, url):
parse = urllib.parse.urlparse(url)
if parse.scheme != 'https':
raise Exception(
'URL scheme must be https, not {}'.format(parse.scheme))
if ':' in parse.netloc:
host, port = parse.netloc.split(':', 1)
port = int(port)
else:
host = parse.netloc
port = None
return host, port, parse.path
def get_authorization(self, user, password):
clear = '{}:{}'.format(user, password)
basic = base64.b64encode(clear.encode('UTF-8'))
return 'Basic {}'.format(basic.decode('UTF-8'))
def list_servers(args, config):
for name in config.servers():
print('server', name)
server = config.get(name)
for key in sorted(server):
print(' ', key, server[key])
def status(args, config):
for name in config.servers():
server = config.get(name)
url = server['url']
api = HTTPAPI(url)
obj = api.get('/status')
print('server', name, obj['resources'])
def register_client(args, config):
new_client_id = args['client_id']
new_client_secret = args['client_secret']
name = config.get_default_server()
server = config.get(name)
url = server['url']
client_id = server['client_id']
client_secret = server['client_secret']
api = HTTPAPI(url)
token = api.get_access_token(client_id, client_secret, ['xxx'])
print(token)
print('NEED TO ACTUALLY CREATE CLIENT HERE')
assert 0
def process_args(config):
subcommands = [
('list-servers', list_servers, []),
('status', status, []),
('register-client', register_client, [
('--client-id', {'required':True}),
('--client-secret', {'required':True}),
]),
]
p = argparse.ArgumentParser()
factory = p.add_subparsers()
for name, func, args in subcommands:
pp = factory.add_parser(name)
for name, kwargs in args:
pp.add_argument(name, **kwargs)
pp.set_defaults(func=func)
args = vars(p.parse_args())
func = args['func']
func(args, config)
def main():
config = Config()
config.read(CONFIG_FILENAME)
args = process_args(config)
if __name__ == '__main__':
main()
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