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#!/usr/bin/env python2.7
from __future__ import print_function
import httplib
import json
import os
import socket
import sys
PREFIX = 'CUSTODIA_'
SECRET_PREFIX = PREFIX + 'SECRET_'
SOCK = './server_socket'
class HTTPUnixConnection(httplib.HTTPConnection):
def __init__(self, socket_file):
self.socket_file = socket_file
httplib.HTTPConnection.__init__(self, 'localhost')
def connect(self):
sock = socket.socket(socket.AF_UNIX)
sock.connect(self.socket_file)
self.sock = sock
def get_custodia_envs():
envs = {}
for name, value in os.environ.iteritems():
if name.startswith(SECRET_PREFIX):
name = name[len(SECRET_PREFIX):]
envs[name] = value
return envs
def query_custodia(envs, sock=SOCK):
conn = HTTPUnixConnection(sock)
headers = {'REMOTE_USER': 'gustodia'}
result = {}
for name, path in envs.iteritems():
conn.request(
'GET', 'http://localhost/secrets/' + path, headers=headers
)
response = conn.getresponse()
if response.status != 200:
print(r1.status, r1.reason)
continue
value = json.loads(response.read())
result[name] = value['value']
return result
def filtered_env():
env = {}
for name, value in os.environ.iteritems():
if not name.startswith(PREFIX):
env[name] = value
return env
def main():
cenvs = get_custodia_envs()
print('env vars', cenvs)
secrets = query_custodia(cenvs)
print('secrets from custodia', secrets)
envp = filtered_env()
envp.update(secrets)
argv = sys.argv[1:]
filename = argv[0]
print("execve(%s, %s, %s)" % (filename, argv, envp))
if __name__ == '__main__':
main()
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