ffmap-backend/nodedb.py

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import json
from node import Node
from link import Link
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from itertools import zip_longest
from bs4 import BeautifulSoup
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from urllib.request import urlopen
class NodeDB:
def __init__(self):
self._nodes = []
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self._links = []
# fetch list of links
def get_links(self):
return [self.map_link(x) for x in self._links]
# fetch list of nodes
def get_nodes(self):
return self._nodes
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def add_link(self, a, b, q):
l = tuple(sorted((a,b)))
for link in self._links:
if l == link[0]:
if link[1] != str(q):
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link[1] = max(float(link[1]), float(q))
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return
self._links.append([l,str(q)])
def maybe_node_by_mac(self, macs):
for node in self._nodes:
for mac in macs:
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if mac.lower() in node.macs:
return node
raise
# import_batman(list(fileinput.input(options['batmanjson'])))
def import_batman(self, lines):
for line in lines:
x = json.loads(line)
if 'of' in x:
try:
node = self.maybe_node_by_mac((x['of'], x['secondary']))
except:
node = Node()
node.flags['online'] = True
self._nodes.append(node)
node.add_mac(x['of'])
node.add_mac(x['secondary'])
for line in lines:
x = json.loads(line)
if 'router' in x:
try:
node = self.maybe_node_by_mac((x['router'], ))
except:
node = Node()
node.flags['online'] = True
node.add_mac(x['router'])
self._nodes.append(node)
# If it's a TT link and the MAC is very similar
# consider this MAC as one of the routers
# MACs
if 'gateway' in x and x['label'] == "TT":
router = list(int(i, 16) for i in x['router'].split(":"))
gateway = list(int(i, 16) for i in x['gateway'].split(":"))
# first byte must only differ in bit 2
if router[0] == gateway[0] | 2:
# count different bytes
a = [x for x in zip(router[1:], gateway[1:]) if x[0] != x[1]]
# no more than two additional bytes must differ
if len(a) <= 2:
delta = 0
if len(a) > 0:
delta = sum(abs(i[0] -i[1]) for i in a)
if delta < 8:
# This TT link looks like a mac of the router!
node.add_mac(x['gateway'])
# skip processing as regular link
continue
try:
if 'gateway' in x:
x['neighbor'] = x['gateway']
node = self.maybe_node_by_mac((x['neighbor'], ))
except:
node = Node()
node.flags['online'] = True
if x['label'] == 'TT':
node.flags['client'] = True
node.add_mac(x['neighbor'])
self._nodes.append(node)
for line in lines:
x = json.loads(line)
if 'router' in x:
try:
if 'gateway' in x:
x['neighbor'] = x['gateway']
router = self.maybe_node_by_mac((x['router'], ))
neighbor = self.maybe_node_by_mac((x['neighbor'], ))
except:
continue
a = self._nodes.index(router)
b = self._nodes.index(neighbor)
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if a != b:
self.add_link(a, b, x['label'])
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for line in lines:
x = json.loads(line)
if 'primary' in x:
try:
node = self.maybe_node_by_mac((x['primary'], ))
except:
continue
node.id = x['primary']
def import_aliases(self, aliases):
for mac, alias in aliases.items():
try:
node = self.maybe_node_by_mac((mac, ))
except:
continue
node.name = alias['name']
# list of macs
# if options['gateway']:
# mark_gateways(options['gateway'])
def mark_gateways(self, gateways):
for gateway in gateways:
try:
node = self.maybe_node_by_mac((gateway, ))
except:
continue
node.flags['gateway'] = True
node.flags['vpn'] = True
def map_link(self, pair):
distance = 80
strength = 0.2
if any(filter(lambda x: self._nodes[x].flags['client'], pair[0])):
distance = 10
strength = 1
link = Link()
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link.pair = pair[0]
link.distance = distance
link.strength = strength
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link.quality = pair[1]
return link
def import_wikigps(self, url):
def fetch_wikitable(url):
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f = urlopen(url)
soup = BeautifulSoup(f)
table = soup.find_all("table")[0]
rows = table.find_all("tr")
headers = []
data = []
def maybe_strip(x):
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if isinstance(x.string, str):
return x.string.strip()
else:
return ""
for row in rows:
tds = list([maybe_strip(x) for x in row.find_all("td")])
ths = list([maybe_strip(x) for x in row.find_all("th")])
if any(tds):
data.append(tds)
if any(ths):
headers = ths
nodes = []
for d in data:
nodes.append(dict(zip(headers, d)))
return nodes
nodes = fetch_wikitable(url)
for node in nodes:
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try:
node['MAC'] = node['MAC'].split(',')
except KeyError:
pass
try:
node['GPS'] = node['GPS'].split(',')
except KeyError:
pass
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try:
node['Nick'] = node['Nick'].split(',')
except KeyError:
pass
nodes = zip_longest(node['MAC'], node['GPS'], node['Nick'])
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for data in nodes:
if not data[0]:
continue
try:
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node = self.maybe_node_by_mac((data[0], ))
except:
node = Node()
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node.add_mac(data[0])
self._nodes.append(node)
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if data[1]:
node.gps = data[1]
if data[2]:
node.name = data[2]
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