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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
import os.path
import re
import tornado.web
import tornado.websocket
import logging
import json
from .. import version, filt
class APIError(tornado.web.HTTPError):
pass
class RequestHandler(tornado.web.RequestHandler):
def set_default_headers(self):
super(RequestHandler, self).set_default_headers()
self.set_header("Server", version.NAMEVERSION)
self.set_header("X-Frame-Options", "DENY")
self.add_header("X-XSS-Protection", "1; mode=block")
self.add_header("X-Content-Type-Options", "nosniff")
self.add_header(
"Content-Security-Policy",
"default-src 'self'; "
"connect-src 'self' ws://* ; "
"style-src 'self' 'unsafe-inline'"
)
@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 IndexHandler(RequestHandler):
def get(self):
_ = self.xsrf_token # https://github.com/tornadoweb/tornado/issues/645
self.render("index.html")
class FiltHelp(RequestHandler):
def get(self):
self.write(dict(
commands=filt.help
))
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 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 RevertFlow(RequestHandler):
def post(self, flow_id):
self.state.revert(self.flow)
class ReplayFlow(RequestHandler):
def post(self, flow_id):
r = self.master.replay_request(self.flow)
if r:
raise APIError(400, r)
class FlowContent(RequestHandler):
def get(self, flow_id, message):
message = getattr(self.flow, message)
if not message.content:
raise APIError(400, "No content.")
content_encoding = message.headers.get_first("Content-Encoding", None)
if content_encoding:
content_encoding = re.sub(r"[^\w]", "", content_encoding)
self.set_header("Content-Encoding", content_encoding)
original_cd = message.headers.get_first("Content-Disposition", None)
filename = None
if original_cd:
filename = re.search("filename=([\w\" \.\-\(\)]+)", original_cd)
if filename:
filename = filename.group(1)
if not filename:
filename = self.flow.request.path.split("?")[0].split("/")[-1]
filename = re.sub(r"[^\w\" \.\-\(\)]", "", filename)
cd = "attachment; filename={}".format(filename)
self.set_header("Content-Disposition", cd)
self.set_header("Content-Type", "application/text")
self.set_header("X-Content-Type-Options", "nosniff")
self.set_header("X-Frame-Options", "DENY")
self.write(message.content)
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(
version=version.VERSION,
mode=str(self.master.server.config.mode),
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"/filter-help", FiltHelp),
(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"/flows/(?P<flow_id>[0-9a-f\-]+)/revert", RevertFlow),
(r"/flows/(?P<flow_id>[0-9a-f\-]+)/(?P<message>request|response)/content", FlowContent),
(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,
)
super(Application, self).__init__(handlers, **settings)
|
