File: ScanSupport.py

package info (click to toggle)
python-torctl 20130920git-2
  • links: PTS
  • area: main
  • in suites: buster, jessie, jessie-kfreebsd, stretch
  • size: 396 kB
  • ctags: 814
  • sloc: python: 5,026; makefile: 36
file content (279 lines) | stat: -rw-r--r-- 8,118 bytes parent folder | download
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
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
#!/usr/bin/python
# Copyright 2009-2010 Mike Perry. See LICENSE file.
import PathSupport
import threading
import copy
import time
import shutil
import TorCtl

from TorUtil import plog

SQLSupport = None

# Note: be careful writing functions for this class. Remember that
# the PathBuilder has its own thread that it recieves events on
# independent from your thread that calls into here.
class ScanHandler(PathSupport.PathBuilder):
  def set_pct_rstr(self, percent_skip, percent_fast):
    def notlambda(sm):
      sm.percent_fast=percent_fast
      sm.percent_skip=percent_skip
    self.schedule_selmgr(notlambda)

  def reset_stats(self):
    def notlambda(this):
      this.reset()
    self.schedule_low_prio(notlambda)

  def commit(self):
    plog("INFO", "Scanner committing jobs...")
    cond = threading.Condition()
    def notlambda2(this):
      cond.acquire()
      this.run_all_jobs = False
      plog("INFO", "Commit done.")
      cond.notify()
      cond.release()

    def notlambda1(this):
      plog("INFO", "Committing jobs...")
      this.run_all_jobs = True
      self.schedule_low_prio(notlambda2)

    cond.acquire()
    self.schedule_immediate(notlambda1)

    cond.wait()
    cond.release()
    plog("INFO", "Scanner commit done.")

  def close_circuits(self):
    cond = threading.Condition()
    def notlambda(this):
      cond.acquire()
      this.close_all_circuits()
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()

  def close_streams(self, reason):
    cond = threading.Condition()
    plog("NOTICE", "Wedged Tor stream. Closing all streams")
    def notlambda(this):
      cond.acquire()
      this.close_all_streams(reason)
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()

  def new_exit(self):
    cond = threading.Condition()
    def notlambda(this):
      cond.acquire()
      this.new_nym = True
      if this.selmgr.bad_restrictions:
        plog("NOTICE", "Clearing bad restrictions with reconfigure..")
        this.selmgr.reconfigure(this.current_consensus())
      lines = this.c.sendAndRecv("SIGNAL CLEARDNSCACHE\r\n")
      for _,msg,more in lines:
        plog("DEBUG", msg)
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()

  def idhex_to_r(self, idhex):
    cond = threading.Condition()
    def notlambda(this):
      cond.acquire()
      if idhex in self.routers:
        cond._result = self.routers[idhex]
      else:
        cond._result = None
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()
    return cond._result

  def name_to_idhex(self, nick):
    cond = threading.Condition()
    def notlambda(this):
      cond.acquire()
      if nick in self.name_to_key:
        cond._result = self.name_to_key[nick]
      else:
        cond._result = None
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()
    return cond._result

  def rank_to_percent(self, rank):
    cond = threading.Condition()
    def notlambda(this):
      cond.acquire()
      cond._pct = (100.0*rank)/len(this.sorted_r) # lol moar haxx
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()
    return cond._pct

  def percent_to_rank(self, pct):
    cond = threading.Condition()
    def notlambda(this):
      cond.acquire()
      cond._rank = int(round((pct*len(this.sorted_r))/100.0,0)) # lol moar haxx
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()
    return cond._rank

  def get_exit_node(self):
    ret = copy.copy(self.last_exit) # GIL FTW
    if ret:
      plog("DEBUG", "Got last exit of "+ret.idhex)
    else:
      plog("DEBUG", "No last exit.")
    return ret

  def set_exit_node(self, arg):
    cond = threading.Condition()
    exit_name = arg
    plog("DEBUG", "Got Setexit: "+exit_name)
    def notlambda(sm):
      plog("DEBUG", "Job for setexit: "+exit_name)
      cond.acquire()
      # Clear last successful exit, we're running a new test
      self.last_exit = None
      sm.set_exit(exit_name)
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_selmgr(notlambda)
    cond.wait()
    cond.release()

class SQLScanHandler(ScanHandler):
  def __init__(self, c, selmgr, RouterClass=TorCtl.Router,
               strm_selector=PathSupport.StreamSelector):
    # Only require sqlalchemy if we really need it.
    global SQLSupport
    if SQLSupport is None:
      import SQLSupport
    ScanHandler.__init__(self, c, selmgr, RouterClass, strm_selector)

  def attach_sql_listener(self, db_uri):
    plog("DEBUG", "Got db: "+db_uri)
    SQLSupport.setup_db(db_uri, echo=False, drop=True)
    self.sql_consensus_listener = SQLSupport.ConsensusTrackerListener()
    self.add_event_listener(self.sql_consensus_listener)
    self.add_event_listener(SQLSupport.StreamListener())

  def write_sql_stats(self, rfilename=None, stats_filter=None):
    if not rfilename:
      rfilename="./data/stats/sql-"+time.strftime("20%y-%m-%d-%H:%M:%S")
    cond = threading.Condition()
    def notlambda(h):
      cond.acquire()
      SQLSupport.RouterStats.write_stats(file(rfilename, "w"),
                            0, 100, order_by=SQLSupport.RouterStats.sbw,
                            recompute=True, disp_clause=stats_filter)
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()

  def write_strm_bws(self, rfilename=None, slice_num=0, stats_filter=None):
    if not rfilename:
      rfilename="./data/stats/bws-"+time.strftime("20%y-%m-%d-%H:%M:%S")
    cond = threading.Condition()
    def notlambda(this):
      cond.acquire()
      f=file(rfilename, "w")
      f.write("slicenum="+str(slice_num)+"\n")
      SQLSupport.RouterStats.write_bws(f, 0, 100,
                            order_by=SQLSupport.RouterStats.sbw,
                            recompute=False, disp_clause=stats_filter)
      f.close()
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()

  def save_sql_file(self, sql_file, new_file):
    cond = threading.Condition()
    def notlambda(this):
      cond.acquire()
      SQLSupport.tc_session.close()
      try:
        shutil.copy(sql_file, new_file)
      except Exception,e:
        plog("WARN", "Error moving sql file: "+str(e))
      SQLSupport.reset_all()
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()

  def wait_for_consensus(self):
    cond = threading.Condition()
    def notlambda(this):
      if this.sql_consensus_listener.last_desc_at \
                 != SQLSupport.ConsensusTrackerListener.CONSENSUS_DONE:
        this.sql_consensus_listener.wait_for_signal = False
        plog("INFO", "Waiting on consensus result: "+str(this.run_all_jobs))
        this.schedule_low_prio(notlambda)
      else:
        cond.acquire()
        this.sql_consensus_listener.wait_for_signal = True
        cond.notify()
        cond.release()
    plog("DEBUG", "Checking for consensus")
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()
    plog("INFO", "Consensus OK")

  def reset_stats(self):
    cond = threading.Condition()
    def notlambda(this):
      cond.acquire()
      ScanHandler.reset_stats(self)
      SQLSupport.reset_all()
      this.sql_consensus_listener.update_consensus()
      this.sql_consensus_listener._update_rank_history(this.sql_consensus_listener.consensus.ns_map.iterkeys())
      SQLSupport.refresh_all()
      cond.notify()
      cond.release()
    cond.acquire()
    self.schedule_low_prio(notlambda)
    cond.wait()
    cond.release()