summaryrefslogtreecommitdiffstats
path: root/retiolum/scripts/adv_graphgen/tinc_graphs/Graph.py
blob: 29491997de4eacfe02c633f5bcede463a16f5bfe (plain)
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
#!/usr/bin/python
from .BackwardsReader import BackwardsReader
import sys,json,os
from .Supernodes import check_all_the_super
from .Services import add_services
from .Availability import get_node_availability
import sys,json
from time import time
DUMP_FILE = os.environ.get("AVAILABILITY_FILE", "tinc-availability.json")
hostpath=os.environ.get("TINC_HOSTPATH", "/etc/tinc/retiolum/hosts")

# will be filled later
supernodes= []

def resolve_myself(nodes):
  #resolve MYSELF to the real ip
  for k,v in nodes.items():
    if v["external-ip"] == "MYSELF":
      for nodek,node in nodes.items():
         for to in node['to']:
           if to['name'] == k:
             v["external-ip"] = to["addr"]
  return nodes


def dump_graph(nodes):
  from time import time
  graph = {}
  graph['nodes'] = nodes
  graph['timestamp'] = time()
  f = open(DUMP_FILE,'a')
  json.dump(graph,f)
  f.write('\n')
  f.close()

def generate_availability_stats(nodes):
  """ generates stats of from availability
  """
  jlines = []
  # try:
  #   f = BackwardsReader(DUMP_FILE)
  #   lines_to_use = 1000
  #   while True:
  #     if lines_to_use == 0: break
  #     line = f.readline()
  #     if not line: break
  #     jline = json.loads(line)
  #     if not jline['nodes']: continue

  #     jlines.append(jline)
  #     lines_to_use -=1
  # except Exception as e: sys.stderr.write(str(e))

  for k,v in nodes.items():
    # TODO: get this information in a different way
    v['availability'] = get_node_availability(k,[])


def generate_stats(nodes):
  """ Generates some statistics of the network and nodes
  """
  for k,v in nodes.items():
    conns = v.get('to',[])
    for c in conns: #sanitize weights
      if float(c['weight']) > 9000: c['weight'] = str(9001)
      elif float(c['weight']) < 0: c['weight'] = str(0)
    v['num_conns'] = len(conns)
    v['avg_weight'] = get_node_avg_weight(conns)

def get_node_avg_weight(conns):
  """ calculates the average weight for the given connections """
  if not conns:
    sys.syderr.write("get_node_avg_weight: connection parameter empty")
    return 9001
  else:
    return sum([float(c['weight']) for c in conns])/len(conns)

def delete_unused_nodes(nodes):
  """ Deletes all the nodes which are currently not connected to the network"""
  new_nodes = {}
  for k,v in nodes.items():
    if v['external-ip'] == "(null)":
      continue
    if v.get('to',[]):
      new_nodes[k] = v
  for k,v in new_nodes.items():
    if not [ i for i in v['to'] if i['name'] in new_nodes]:
      del(k)
  return new_nodes

def merge_edges(nodes):
  """ merge back and forth edges into one
  DESTRUCTS the current structure by deleting "connections" in the nodes
  """
  for k,v in nodes.items():
    for con in v.get('to',[]):
      for i,secon in enumerate(nodes.get(con['name'],{}).get('to',[])):
        if k == secon['name']:
          del (nodes[con['name']]['to'][i])
          con['bidirectional'] = True


def print_head():
  print ('digraph retiolum {')
  print ('  graph [center=true packMode="clust"]')
  print ('  node[shape=box,style=filled,fillcolor=grey]')
  print ('  overlap=false')

def print_stat_node(nodes):
  ''' Write a `stats` node in the corner
      This node contains infos about the current number of active nodes and connections inside the network
  '''
  from time import localtime,strftime
  num_conns = 0
  num_nodes = len(nodes)
  try: 
    msg = '%s.num_nodes %d %d\r\n' %(g_path,num_nodes,begin)
    s.send(msg)
  except Exception as e: pass
  for k,v in nodes.items():
    num_conns+= len(v['to'])
  node_text = "  stats_node [label=\"Statistics\\l"
  node_text += "Build Date  : %s\\l" % strftime("%Y-%m-%d %H:%M:%S",localtime())
  node_text += "Active Nodes: %s\\l" % num_nodes
  node_text += "Connections : %s\\l" % num_conns
  node_text += "\""
  node_text += ",fillcolor=green"
  node_text += "]"
  print(node_text)

def print_node(k,v):
  """ writes a single node and its edges 
      edges are weightet with the informations inside the nodes provided by
      tinc
  """

  node = "  "+k+"[label=<<TABLE border='0' title='%s' cellborder='1' >" %k
  node += "<TR><TD colspan='2'><B>%s</B></TD></TR>"%k
  if 'availability' in v:
    node += "<TR><TD>availability:</TD><TD>%f</TD></TR>" % v['availability'] 

  if 'num_conns' in v:
    node += "<TR><TD>Num Connects:</TD><TD>%s</TD></TR>"%str(v['num_conns'])

  node += "<TR><TD>external:</TD><TD>"+v['external-ip']+":"+v['external-port']+"</TD></TR>"
  for addr in v.get('internal-ip',['dunno lol']): 
    node += "<TR><TD>internal:</TD><TD>%s</TD></TR>"%addr

  if 'services' in v:
    node +="<TR><TD colspan='2'><B>Services:</B></TD></TR>"
    for service in v['services']:
      try:uri,comment = service.split(" ",1)
      except: 
        uri = service
        comment =""
      node +="<TR >"
      uri_proto=uri.split(":")[0]
      uri_rest = uri.split(":")[1] 
      if not uri_rest:
        node +="<TD title='{0}' align='left' colspan='2' \
href='{0}'><font color='darkred'>{0}</font>".format(uri)
      else:
        node +="<TD title='{0}' align='left' colspan='2' \
href='{0}'><U>{0}</U>".format(uri)
      if comment:
        node += "<br align='left'/>    <I>{0}</I>".format(comment)
      node +="</TD></TR>"
  # end label
  node +="</TABLE>>"

  if v['num_conns'] == 1:
    node += ",fillcolor=red"
  elif k in supernodes:
    node += ",fillcolor=steelblue1"
  node += "]"

  print(node)

def print_anonymous_node(k,v):
  """ writes a single node and its edges 
      edges are weightet with the informations inside the nodes provided by
      tinc
  """
  
  node = "  "+k #+"[label=\""
  print(node)

def print_edge(k,v):
  for con in v.get('to',[]):
    label  = con['weight']
    w = int(con['weight'])
    weight = str(1000 - (((w - 150) * (1000 - 0)) / (1000 -150 )) + 0)

    length = str(float(w)/1500)
    if float(weight) < 0 :
      weight= "1"

    edge = "  "+k+ " -> " +con['name'] + " [label="+label + " weight="+weight 
    if con.get('bidirectional',False):
      edge += ",dir=both"
    edge += "]"
    print(edge)

def anonymize_nodes(nodes):
  #anonymizes all nodes
  i = "0"
  newnodes = {}
  for k,v in nodes.items():
    for nodek,node in nodes.items():
      for to in node['to']:
        if to['name'] == k:
          to['name'] = i
    newnodes[i] = v
    i = str(int(i)+1)
  return newnodes

def main():
  if len(sys.argv) != 2 or  sys.argv[1] not in ["anonymous","complete"]: 
    print("usage: %s (anonymous|complete)")
    sys.exit(1)

  nodes = json.load(sys.stdin)
  nodes = delete_unused_nodes(nodes)
  print_head()
  generate_stats(nodes)
  merge_edges(nodes)


  if sys.argv[1] == "anonymous":
    nodes = anonymize_nodes(nodes)

    for k,v in nodes.items():
      print_anonymous_node(k,v)
      print_edge(k,v)

  elif sys.argv[1] == "complete":
    try:
      for supernode,addr in check_all_the_super(hostpath):
        supernodes.append(supernode)
    except FileNotFoundError as e:
      print("!! cannot load list of supernodes ({})".format(hostpath))
      print("!! Use TINC_HOSTPATH env to override")
      sys.exit(1)

    generate_availability_stats(nodes)
    add_services(nodes)
    for k,v in nodes.items():
      print_node(k,v)
      print_edge(k,v)

    #TODO: get availability somehow else
    # try:
    #   dump_graph(nodes)
    # except Exception as e:
    #   sys.stderr.write("Cannot dump graph: %s" % str(e))
  else:
    pass

  print_stat_node(nodes)
  print ('}')

if __name__ == "__main__":
  main()

# vim: set sw=2:ts=2