openmedialibrary/oml/node/server.py
2014-08-09 18:33:59 +02:00

184 lines
5.9 KiB
Python

# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
import os
import tornado
from tornado.web import Application
from tornado.httpserver import HTTPServer
from tornado.ioloop import PeriodicCallback
import settings
import directory
import db
import state
import user
import json
from utils import valid, get_public_ipv6
import nodeapi
import cert
from websocket import trigger_event
from oxtornado import run_async
import logging
logger = logging.getLogger('oml.node.server')
class NodeHandler(tornado.web.RequestHandler):
def initialize(self):
pass
@tornado.web.asynchronous
@tornado.gen.coroutine
def post(self):
'''
API
pullChanges [userid] from [to]
pushChanges [index, change]
requestPeering username message
acceptPeering username message
rejectPeering message
removePeering message
ping responds public ip
'''
key = str(self.request.headers['X-Ed25519-Key'])
sig = str(self.request.headers['X-Ed25519-Signature'])
data = self.request.body
content = {}
self.set_header('X-Node-Protocol', settings.NODE_PROTOCOL)
if self.request.headers.get('X-Node-Protocol', None) > settings.NODE_PROTOCOL:
state.update_required = True
if self.request.headers.get('X-Node-Protocol', None) != settings.NODE_PROTOCOL:
content = settings.release
else:
if valid(key, data, sig):
action, args = json.loads(data)
logger.debug('NODE action %s %s (%s)', action, args, key)
if action == 'ping':
content = {
'ip': self.request.remote_addr
}
else:
content = yield tornado.gen.Task(api_call, action, key, args)
if content is None:
content = {'status': 'not peered'}
logger.debug('PEER %s IS UNKNOWN SEND 403', key)
self.set_status(403)
content = json.dumps(content)
sig = settings.sk.sign(content, encoding='base64')
self.set_header('X-Ed25519-Signature', sig)
self.set_header('X-Node-Protocol', settings.NODE_PROTOCOL)
self.write(content)
def get(self):
self.set_header('X-Node-Protocol', settings.NODE_PROTOCOL)
if self.request.headers.get('X-Node-Protocol', None) > settings.NODE_PROTOCOL:
state.update_required = True
self.write('Open Media Library')
@run_async
def api_call(action, key, args, callback):
with db.session():
u = user.models.User.get(key)
if action in (
'requestPeering', 'acceptPeering', 'rejectPeering', 'removePeering'
) or (u and u.peered):
content = getattr(nodeapi, 'api_' + action)(key, *args)
else:
if u and u.pending:
logger.debug('ignore request from pending peer[%s] %s (%s)', key, action, args)
content = {}
else:
content = None
callback(content)
class ShareHandler(tornado.web.RequestHandler):
def initialize(self):
pass
def get(self, id):
import db
import item.models
with db.session():
i = item.models.Item.get(id)
if not i:
self.set_status(404)
return
path = i.get_path()
mimetype = {
'epub': 'application/epub+zip',
'pdf': 'application/pdf',
'txt': 'text/plain',
}.get(path.split('.')[-1], None)
self.set_header('Content-Type', mimetype)
logger.debug('GET file %s', id)
with open(path, 'rb') as f:
while 1:
data = f.read(16384)
if not data:
break
self.write(data)
def publish_node():
update_online()
if state.online:
with db.session():
for u in user.models.User.query.filter_by(queued=True):
logger.debug('adding queued node... %s', u.id)
state.nodes.queue('add', u.id)
state.check_nodes = PeriodicCallback(check_nodes, 120000)
state.check_nodes.start()
state._online = PeriodicCallback(update_online, 60000)
state._online.start()
def update_online():
host = get_public_ipv6()
if not host:
if state.online:
state.online = False
trigger_event('status', {
'id': settings.USER_ID,
'online': state.online
})
else:
if host != state.host:
state.host = host
online = directory.put(settings.sk, {
'host': host,
'port': settings.server['node_port'],
'cert': settings.server['cert']
})
if online != state.online:
state.online = online
trigger_event('status', {
'id': settings.USER_ID,
'online': state.online
})
def check_nodes():
if state.online:
with db.session():
for u in user.models.User.query.filter_by(queued=True):
if not state.nodes.is_online(u.id):
logger.debug('queued peering message for %s trying to connect...', u.id)
state.nodes.queue('add', u.id)
def start():
application = Application([
(r"/get/(.*)", ShareHandler),
(r".*", NodeHandler),
], gzip=True)
if not os.path.exists(settings.ssl_cert_path):
settings.server['cert'] = cert.generate_ssl()
http_server = HTTPServer(application, ssl_options={
"certfile": settings.ssl_cert_path,
"keyfile": settings.ssl_key_path
})
http_server.listen(settings.server['node_port'], settings.server['node_address'])
state.main.add_callback(publish_node)
return http_server