328 lines
10 KiB
Python
328 lines
10 KiB
Python
# -*- coding: utf-8 -*-
|
|
# vi:si:et:sw=4:sts=4:ts=4
|
|
from __future__ import division
|
|
|
|
from Queue import Queue
|
|
from threading import Thread
|
|
import json
|
|
import socket
|
|
|
|
from datetime import datetime
|
|
import os
|
|
|
|
import ox
|
|
import ed25519
|
|
import urllib2
|
|
|
|
import settings
|
|
import user.models
|
|
from changelog import Changelog
|
|
|
|
import directory
|
|
from websocket import trigger_event
|
|
from localnodes import LocalNodes
|
|
from ssl_request import get_opener
|
|
|
|
import logging
|
|
logger = logging.getLogger('oml.nodes')
|
|
|
|
ENCODING='base64'
|
|
|
|
class Node(object):
|
|
_cert = None
|
|
online = False
|
|
download_speed = 0
|
|
TIMEOUT = 3
|
|
|
|
def __init__(self, nodes, user):
|
|
self._nodes = nodes
|
|
self._app = nodes._app
|
|
self.user_id = user.id
|
|
key = str(user.id)
|
|
self.vk = ed25519.VerifyingKey(key, encoding=ENCODING)
|
|
self.go_online()
|
|
logger.debug('new Node %s online=%s', self.user_id, self.online)
|
|
|
|
@property
|
|
def url(self):
|
|
local = self.get_local()
|
|
if local:
|
|
url = 'https://[%s]:%s' % (local['host'], local['port'])
|
|
elif not self.host:
|
|
return None
|
|
else:
|
|
if ':' in self.host:
|
|
url = 'https://[%s]:%s' % (self.host, self.port)
|
|
else:
|
|
url = 'https://%s:%s' % (self.host, self.port)
|
|
return url
|
|
|
|
def resolve(self):
|
|
r = directory.get(self.vk)
|
|
if r:
|
|
self.host = r['host']
|
|
if 'port' in r:
|
|
self.port = r['port']
|
|
if r['cert'] != self._cert:
|
|
self._cert = r['cert']
|
|
self._opener = get_opener(self._cert)
|
|
else:
|
|
self.host = None
|
|
self.port = 9851
|
|
|
|
def get_local(self):
|
|
if self._nodes and self._nodes._local:
|
|
local = self._nodes._local.get(self.user_id)
|
|
if local and local['cert'] != self._cert:
|
|
self._cert = local['cert']
|
|
self._opener = get_opener(self._cert)
|
|
return local
|
|
return None
|
|
|
|
def request(self, action, *args):
|
|
url = self.url
|
|
if not url:
|
|
self.resolve()
|
|
url = self.url
|
|
if not self.url:
|
|
logger.debug('unable to find host %s', self.user_id)
|
|
self.online = False
|
|
return None
|
|
content = json.dumps([action, args])
|
|
sig = settings.sk.sign(content, encoding=ENCODING)
|
|
headers = {
|
|
'User-Agent': settings.USER_AGENT,
|
|
'Accept': 'text/plain',
|
|
'Accept-Encoding': 'gzip',
|
|
'Content-Type': 'application/json',
|
|
'X-Ed25519-Key': settings.USER_ID,
|
|
'X-Ed25519-Signature': sig,
|
|
}
|
|
self._opener.addheaders = zip(headers.keys(), headers.values())
|
|
try:
|
|
r = self._opener.open(url, data=content, timeout=self.TIMEOUT)
|
|
except urllib2.HTTPError as e:
|
|
if e.code == 403:
|
|
logger.debug('REMOTE ENDED PEERING')
|
|
if self.user.peered:
|
|
self.user.update_peering(False)
|
|
self.online = False
|
|
return
|
|
logger.debug('urllib2.HTTPError %s %s', e, e.code)
|
|
self.online = False
|
|
return None
|
|
except urllib2.URLError as e:
|
|
logger.debug('urllib2.URLError %s', e)
|
|
self.online = False
|
|
return None
|
|
except:
|
|
logger.debug('unknown url error', exc_info=1)
|
|
self.online = False
|
|
return None
|
|
data = r.read()
|
|
sig = r.headers.get('X-Ed25519-Signature')
|
|
if sig and self._valid(data, sig):
|
|
response = json.loads(data)
|
|
else:
|
|
logger.debug('invalid signature %s', data)
|
|
response = None
|
|
return response
|
|
|
|
def _valid(self, data, sig):
|
|
try:
|
|
self.vk.verify(sig, data, encoding=ENCODING)
|
|
#except ed25519.BadSignatureError:
|
|
except:
|
|
return False
|
|
return True
|
|
|
|
@property
|
|
def user(self):
|
|
return user.models.User.get_or_create(self.user_id)
|
|
|
|
def can_connect(self):
|
|
try:
|
|
s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
|
|
s.settimeout(1)
|
|
s.connect((self.host, self.port))
|
|
s.close()
|
|
return True
|
|
except:
|
|
pass
|
|
return False
|
|
|
|
def go_online(self):
|
|
self.resolve()
|
|
u = self.user
|
|
if u.peered or u.queued:
|
|
try:
|
|
self.online = False
|
|
logger.debug('type to connect to %s', self.user_id)
|
|
if self.can_connect():
|
|
self.online = True
|
|
if u.queued:
|
|
logger.debug('queued peering event pending=%s peered=%s', u.pending, u.peered)
|
|
if u.pending == 'sent':
|
|
self.peering('requestPeering')
|
|
elif u.pending == '' and u.peered:
|
|
self.peering('acceptPeering')
|
|
else:
|
|
#fixme, what about cancel/reject peering here?
|
|
self.peering('removePeering')
|
|
if self.online:
|
|
self.pullChanges()
|
|
logger.debug('connected to %s', self.user_id)
|
|
except:
|
|
logger.debug('failed to connect to %s', self.user_id, exc_info=1)
|
|
self.online = False
|
|
else:
|
|
self.online = False
|
|
trigger_event('status', {
|
|
'id': self.user_id,
|
|
'status': 'online' if self.online else 'offline'
|
|
})
|
|
|
|
def pullChanges(self):
|
|
with self._app.app_context():
|
|
last = Changelog.query.filter_by(user_id=self.user_id).order_by('-revision').first()
|
|
from_revision = last.revision + 1 if last else 0
|
|
changes = self.request('pullChanges', from_revision)
|
|
if not changes:
|
|
return False
|
|
return Changelog.apply_changes(self.user, changes)
|
|
|
|
def pushChanges(self, changes):
|
|
logger.debug('pushing changes to %s %s', self.user_id, changes)
|
|
try:
|
|
r = self.request('pushChanges', changes)
|
|
except:
|
|
self.online = False
|
|
trigger_event('status', {
|
|
'id': self.user_id,
|
|
'status': 'offline'
|
|
})
|
|
r = False
|
|
logger.debug('pushedChanges %s %s', r, self.user_id)
|
|
|
|
def peering(self, action):
|
|
u = self.user
|
|
if action in ('requestPeering', 'acceptPeering'):
|
|
r = self.request(action, settings.preferences['username'], u.info.get('message'))
|
|
else:
|
|
r = self.request(action, u.info.get('message'))
|
|
if r:
|
|
u.queued = False
|
|
if 'message' in u.info:
|
|
del u.info['message']
|
|
u.save()
|
|
else:
|
|
logger.debug('peering failed? %s %s', action, r)
|
|
|
|
if action in ('cancelPeering', 'rejectPeering', 'removePeering'):
|
|
self.online = False
|
|
return True
|
|
|
|
def download(self, item):
|
|
url = '%s/get/%s' % (self.url, item.id)
|
|
headers = {
|
|
'User-Agent': settings.USER_AGENT,
|
|
}
|
|
t1 = datetime.now()
|
|
logger.debug('download %s', url)
|
|
'''
|
|
r = requests.get(url, headers=headers)
|
|
if r.status_code == 200:
|
|
content = r.content
|
|
'''
|
|
self._opener.addheaders = zip(headers.keys(), headers.values())
|
|
r = self._opener.open(url, timeout=self.TIMEOUT)
|
|
if r.getcode() == 200:
|
|
content = r.read()
|
|
t2 = datetime.now()
|
|
duration = (t2-t1).total_seconds()
|
|
if duration:
|
|
self.download_speed = len(content) / duration
|
|
logger.debug('SPEED %s', ox.format_bits(self.download_speed))
|
|
return item.save_file(content)
|
|
else:
|
|
logger.debug('FAILED %s', url)
|
|
return False
|
|
|
|
def download_upgrade(self, release):
|
|
for module in release['modules']:
|
|
path = os.path.join(settings.update_path, release['modules'][module]['name'])
|
|
if not os.path.exists(path):
|
|
url = '%s/oml/%s' % (self.url, release['modules'][module]['name'])
|
|
sha1 = release['modules'][module]['sha1']
|
|
headers = {
|
|
'User-Agent': settings.USER_AGENT,
|
|
}
|
|
self._opener.addheaders = zip(headers.keys(), headers.values())
|
|
r = self._opener.open(url)
|
|
if r.getcode() == 200:
|
|
with open(path, 'w') as fd:
|
|
fd.write(r.read())
|
|
if (ox.sha1sum(path) != sha1):
|
|
logger.error('invalid update!')
|
|
os.unlink(path)
|
|
return False
|
|
else:
|
|
return False
|
|
|
|
class Nodes(Thread):
|
|
_nodes = {}
|
|
_local = None
|
|
|
|
def __init__(self, app):
|
|
self._app = app
|
|
self._q = Queue()
|
|
self._running = True
|
|
self._local = LocalNodes(app)
|
|
Thread.__init__(self)
|
|
self.daemon = True
|
|
self.start()
|
|
|
|
def queue(self, *args):
|
|
self._q.put(list(args))
|
|
|
|
def check_online(self, id):
|
|
return id in self._nodes and self._nodes[id].online
|
|
|
|
def download(self, id, item):
|
|
return id in self._nodes and self._nodes[id].download(item)
|
|
|
|
def _call(self, target, action, *args):
|
|
if target == 'all':
|
|
nodes = self._nodes.values()
|
|
elif target == 'peered':
|
|
nodes = [n for n in self._nodes.values() if n.user.peered]
|
|
elif target == 'online':
|
|
nodes = [n for n in self._nodes.values() if n.online]
|
|
else:
|
|
nodes = [self._nodes[target]]
|
|
for node in nodes:
|
|
getattr(node, action)(*args)
|
|
|
|
def _add(self, user_id):
|
|
if user_id not in self._nodes:
|
|
from user.models import User
|
|
self._nodes[user_id] = Node(self, User.get_or_create(user_id))
|
|
else:
|
|
logger.debug('bring existing node online %s', user_id)
|
|
if not self._nodes[user_id].online:
|
|
self._nodes[user_id].go_online()
|
|
|
|
def run(self):
|
|
with self._app.app_context():
|
|
while self._running:
|
|
args = self._q.get()
|
|
if args:
|
|
if args[0] == 'add':
|
|
self._add(args[1])
|
|
else:
|
|
self._call(*args)
|
|
|
|
def join(self):
|
|
self._running = False
|
|
self._q.put(None)
|
|
return Thread.join(self)
|