54 lines
1.3 KiB
Python
54 lines
1.3 KiB
Python
# -*- coding: utf-8 -*-
|
|
# vi:si:et:sw=4:sts=4:ts=4
|
|
# DHT placeholder
|
|
|
|
|
|
import logging
|
|
|
|
import requests
|
|
import ed25519
|
|
import json
|
|
|
|
import settings
|
|
|
|
logger = logging.getLogger('oml.directory')
|
|
|
|
base = settings.server['directory_service']
|
|
|
|
def get(vk):
|
|
id = vk.to_ascii(encoding='base64').decode()
|
|
url = '%s/%s' % (base, id)
|
|
headers = {
|
|
'User-Agent': settings.USER_AGENT
|
|
}
|
|
r = requests.get(url, headers=headers)
|
|
sig = r.headers.get('X-Ed25519-Signature')
|
|
data = r.content
|
|
if sig and data:
|
|
vk = ed25519.VerifyingKey(id, encoding='base64')
|
|
try:
|
|
vk.verify(sig, data, encoding='base64')
|
|
data = json.loads(data.decode('utf-8'))
|
|
except ed25519.BadSignatureError:
|
|
logger.debug('invalid signature')
|
|
|
|
data = None
|
|
return data
|
|
|
|
def put(sk, data):
|
|
id = sk.get_verifying_key().to_ascii(encoding='base64').decode()
|
|
data = json.dumps(data).encode()
|
|
sig = sk.sign(data, encoding='base64')
|
|
url ='%s/%s' % (base, id)
|
|
headers = {
|
|
'User-Agent': settings.USER_AGENT,
|
|
'X-Ed25519-Signature': sig
|
|
}
|
|
try:
|
|
r = requests.put(url, data, headers=headers, timeout=2)
|
|
except:
|
|
import traceback
|
|
logger.info('directory.put failed: %s', data)
|
|
traceback.print_exc()
|
|
return False
|
|
return r.status_code == 200
|