refactor tinc_stats into a single python module

1 files changed, 166 insertions, 0 deletions

diff --git a/retiolum/scripts/adv_graphgen/tinc_stats/Log2JSON.py b/retiolum/scripts/adv_graphgen/tinc_stats/Log2JSON.py
new file mode 100755
index 00000000..644cbc63
--- /dev/null
+++ b/retiolum/scripts/adv_graphgen/tinc_stats/Log2JSON.py
@@ -0,0 +1,166 @@
+#!/usr/bin/python
+import subprocess
+import os
+import re
+import sys
+import json
+
+
+TINC_NETWORK =os.environ.get("TINC_NETWORK","retiolum")
+
+# is_legacy is the parameter which defines if the tinc config files are handled old fashioned (parse from syslog), 
+# or if the new and hip tincctl should be used
+
+
+# Tags and Delimiters
+TINC_TAG="tinc.%s" % TINC_NETWORK
+BEGIN_NODES = "Nodes:"
+END_NODES = "End of nodes."
+BEGIN_SUBNET = "Subnet list:"
+END_SUBNET = "End of subnet list"
+BEGIN_EDGES = "Edges:"
+END_EDGES = "End of edges."
+def usage():
+  from sys import argv,exit
+  print("""usage: %s
+This tool dumps all tinc node informations as json
+
+ENVIRONMENT VARIABLES:
+  TINC_NETWORK   The tinc network to dump 
+                      (default: retiolum)
+  LOG_FILE       If legacy tinc is used, defines the log file where tinc stats are dumped in
+                      (default: /var/log/everything.log)
+""" % argv[0])
+  exit(1)
+def debug(func):
+  from functools import wraps
+  @wraps(func)
+  def with_debug(*args,**kwargs):
+    print( func.__name__ + " (args: %s | kwargs %s)"% (args,kwargs))
+    return func(*args,**kwargs)
+  return with_debug
+
+
+def get_tinc_log_file():
+  # TODO parse logfile from somewhere
+  return os.environ.get("LOG_FILE","/var/log/everything.log")
+
+
+def parse_tinc_stats():
+  import subprocess
+  from time import sleep
+  from distutils.spawn import find_executable as which
+  #newest tinc
+  if which("tinc"):
+    return parse_new_input("tinc")
+  #new tinc
+  elif which("tincctl"):
+    return parse_new_input("tincctl")
+  #old tinc
+  elif which("tincd"):
+    # TODO refactor me
+    subprocess.call(["pkill","-SIGUSR2", "tincd"])
+    sleep(1)
+    return parse_input(get_tinc_block(get_tinc_log_file()))
+  #no tinc
+  else:
+    raise Exception("no tinc executable found!")
+  
+#@debug
+def get_tinc_block(log_file):
+  """ returns an iterateable block from the given log file (syslog) 
+      This function became obsolete with the introduction of tincctl
+  """
+  from BackwardsReader import BackwardsReader
+  tinc_block = []
+  in_block = False
+  bf = BackwardsReader(log_file)
+  BOL = re.compile(".*tinc.%s\[[0-9]+\]: " % TINC_NETWORK)
+  while True:
+    line = bf.readline()
+    if not line:
+      raise Exception("end of file at log file? This should not happen!")
+    line = BOL.sub('',line).strip()
+
+    if END_SUBNET in line:
+      in_block = True
+
+    if not in_block:
+      continue
+    tinc_block.append(line)
+
+    if BEGIN_NODES in line:
+      break
+  return reversed(tinc_block)
+
+def parse_new_input(tinc_bin):
+  nodes = {} 
+  pnodes = subprocess.Popen([tinc_bin,"-n",TINC_NETWORK,"dump","reachable","nodes"], stdout=subprocess.PIPE).communicate()[0]
+  #pnodes = subprocess.check_output(["tincctl","-n",TINC_NETWORK,"dump","reachable","nodes"])
+  for line in pnodes.split('\n'):
+    if not line: continue
+    l = line.split()
+    nodes[l[0]]= { 'external-ip': l[2], 'external-port' : l[4] }
+  psubnets = subprocess.check_output([tinc_bin,"-n",TINC_NETWORK,"dump","subnets"])
+  for line in psubnets.split('\n'):
+    if not line: continue
+    l = line.split()
+    try:
+      if not nodes[l[2]].get('internal-ip',False):
+         nodes[l[2]]['internal-ip'] = []
+      nodes[l[2]]['internal-ip'].append(l[0].split('#')[0])
+    except KeyError:
+      pass # node does not exist (presumably)
+  pedges = subprocess.check_output([tinc_bin,"-n",TINC_NETWORK,"dump","edges"])
+  for line in pedges.split('\n'):
+    if not line: continue
+    l = line.split()
+    try:
+      if not nodes[l[0]].has_key('to') :
+        nodes[l[0]]['to'] = []
+      nodes[l[0]]['to'].append(
+          {'name':l[2],'addr':l[4],'port':l[6],'weight' : l[10] })
+    except KeyError:
+      pass #node does not exist
+  return nodes
+
+#@debug
+def parse_input(log_data):
+  nodes={}
+  for line in log_data:
+    if BEGIN_NODES in line :
+      nodes={}
+      for line in log_data:
+        if END_NODES in line :
+          break
+        l = line.replace('\n','').split() #TODO unhack me
+        nodes[l[0]]= { 'external-ip': l[2], 'external-port' : l[4] }
+    if BEGIN_SUBNET in line :
+      for line in log_data:
+        if END_SUBNET in line :
+          break
+        l = line.replace('\n','').split() 
+        if not nodes[l[2]].get('internal-ip',False):
+           nodes[l[2]]['internal-ip'] = []
+        nodes[l[2]]['internal-ip'].append(l[0].split('#')[0])
+    if BEGIN_EDGES in line :
+      edges = {}
+      for line in log_data:
+        if END_EDGES in line :
+          break
+        l = line.replace('\n','').split() 
+        if not nodes[l[0]].has_key('to') :
+          nodes[l[0]]['to'] = []
+        nodes[l[0]]['to'].append(
+            {'name':l[2],'addr':l[4],'port':l[6],'weight' : l[10] })
+  return nodes
+
+
+if __name__ == '__main__':
+  # TODO refactor me
+  from sys import argv
+  if len(argv) > 1:
+    usage()
+  else:
+    print json.dumps(parse_tinc_stats())
+