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import os.path
import tornado.web
import tornado.websocket
import logging
import json
class APIError(tornado.web.HTTPError):
pass
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, **kwargs):
message = json.dumps(kwargs)
for conn in cls.connections:
try:
conn.write_message(message)
except:
logging.error("Error sending message", exc_info=True)
class ClientConnection(WebSocketEventBroadcaster):
connections = set()
class RequestHandler(tornado.web.RequestHandler):
@property
def state(self):
return self.application.master.state
@property
def master(self):
return self.application.master
@property
def flow(self):
flow_id = str(self.path_kwargs["flow_id"])
flow = self.state.flows.get(flow_id)
if flow:
return flow
else:
raise APIError(400, "Flow not found.")
def write_error(self, status_code, **kwargs):
if "exc_info" in kwargs and isinstance(kwargs["exc_info"][1], APIError):
self.finish(kwargs["exc_info"][1].log_message)
else:
super(RequestHandler, self).write_error(status_code, **kwargs)
class Flows(RequestHandler):
def get(self):
self.write(dict(
data=[f.get_state(short=True) for f in self.state.flows]
))
class ClearAll(RequestHandler):
def post(self):
self.state.clear()
class AcceptFlows(RequestHandler):
def post(self):
self.state.flows.accept_all(self.master)
class AcceptFlow(RequestHandler):
def post(self, flow_id):
self.flow.accept_intercept(self.master)
class FlowHandler(RequestHandler):
def delete(self, flow_id):
self.flow.kill(self.master)
self.state.delete_flow(self.flow)
class DuplicateFlow(RequestHandler):
def post(self, flow_id):
self.master.duplicate_flow(self.flow)
class ReplayFlow(RequestHandler):
def post(self, flow_id):
self.flow.backup()
r = self.master.replay_request(self.flow)
if r:
raise APIError(400, r)
class Events(RequestHandler):
def get(self):
self.write(dict(
data=list(self.state.events)
))
class Settings(RequestHandler):
def get(self):
self.write(dict(
data=dict(
intercept=self.state.intercept_txt
)
))
def put(self, *update, **kwargs):
update = {}
for k, v in self.request.arguments.iteritems():
if len(v) != 1:
print "Warning: Unknown length for setting {}: {}".format(k, v)
continue
if k == "_xsrf":
continue
elif k == "intercept":
self.state.set_intercept(v[0])
update[k] = v[0]
else:
print "Warning: Unknown setting {}: {}".format(k, v)
ClientConnection.broadcast(
type="settings",
cmd="update",
data=update
)
class Application(tornado.web.Application):
def __init__(self, master, debug):
self.master = master
handlers = [
(r"/", IndexHandler),
(r"/updates", ClientConnection),
(r"/events", Events),
(r"/flows", Flows),
(r"/flows/accept", AcceptFlows),
(r"/flows/(?P<flow_id>[0-9a-f\-]+)", FlowHandler),
(r"/flows/(?P<flow_id>[0-9a-f\-]+)/accept", AcceptFlow),
(r"/flows/(?P<flow_id>[0-9a-f\-]+)/duplicate", DuplicateFlow),
(r"/flows/(?P<flow_id>[0-9a-f\-]+)/replay", ReplayFlow),
(r"/settings", Settings),
(r"/clear", ClearAll),
]
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)
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