1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
#!/usr/bin/env python2
import os
import random
import sys
import yaml
import bottle
import cliapp
import distixapi
class AuthenticationPlugin(object):
name = 'AuthenticationPlugin'
def __init__(self, users):
self._users = users
def apply(self, callback, route):
def authorize(*args, **kwargs):
try:
scopes = distixapi.get_scopes(self._users, bottle.request)
except distixapi.AuthenticationError:
return bottle.abort(401, 'Unauthorized')
if route['method'].lower() not in scopes:
return bottle.abort(401, 'Unauthorized')
return callback(*args, **kwargs)
return authorize
class API(object):
def __init__(self, users):
self.app = bottle.Bottle()
self.app.install(AuthenticationPlugin(users))
self.app.route('/version', method='GET', callback=self.version)
def run(self, port):
self.app.run(port=port)
def version(self):
return { 'version': '1.0' }
class DistixBackend(cliapp.Application):
def add_settings(self):
self.settings.integer(
['port'],
'listen on PORT',
metavar='PORT')
self.settings.string(
['port-file'],
'pick random ports, write to FILE',
metavar='FILE')
self.settings.string(
['pid-file'],
'write pid to FILE',
metavar='FILE')
self.settings.string(
['users-file'],
'read users list from FILE',
metavar='FILE')
def process_args(self, args):
users = self.read_user_file()
if self.settings['port']:
port = self.settings['port']
else:
port = self.pick_random_port()
self.write_pid_file()
api = API(users)
api.run(port)
def read_user_file(self):
filename = self.settings['users-file']
if os.path.exists(filename):
with open(filename) as f:
return yaml.safe_load(f)
def pick_random_port(self):
port = random.randint(1025, 32767)
with open(self.settings['port-file'], 'w') as f:
f.write('{}\n'.format(port))
return port
def write_pid_file(self):
filename = self.settings['pid-file']
if filename:
with open(filename, 'w') as f:
f.write('{}\n'.format(os.getpid()))
DistixBackend(version=distixapi.__version__).run()
|
