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
|
import os.path
import sys
import tornado.web
import tornado.websocket
import logging
import json
from .. import flow
class IndexHandler(tornado.web.RequestHandler):
def get(self):
_ = self.xsrf_token # https://github.com/tornadoweb/tornado/issues/645
self.render("index.html")
class WebSocketEventBroadcaster(tornado.websocket.WebSocketHandler):
connections = None # raise an error if inherited class doesn't specify its own instance.
def open(self):
self.connections.add(self)
def on_close(self):
self.connections.remove(self)
@classmethod
def broadcast(cls, type, data):
message = json.dumps(
{
"type": type,
"data": data
}
)
for conn in cls.connections:
try:
conn.write_message(message)
except:
logging.error("Error sending message", exc_info=True)
class Flows(tornado.web.RequestHandler):
def get(self):
self.write(dict(
flows=[f.get_state(short=True) for f in self.application.state.flows]
))
class FlowClear(tornado.web.RequestHandler):
def post(self):
self.application.state.clear()
class FlowUpdates(WebSocketEventBroadcaster):
connections = set()
class ClientConnection(WebSocketEventBroadcaster):
connections = set()
class Application(tornado.web.Application):
def __init__(self, state, debug):
self.state = state
handlers = [
(r"/", IndexHandler),
(r"/updates", ClientConnection),
(r"/flows", Flows),
(r"/flows/clear", FlowClear),
(r"/flows/updates", FlowUpdates),
]
settings = dict(
template_path=os.path.join(os.path.dirname(__file__), "templates"),
static_path=os.path.join(os.path.dirname(__file__), "static"),
xsrf_cookies=True,
cookie_secret=os.urandom(256),
debug=debug,
)
tornado.web.Application.__init__(self, handlers, **settings)
|
