295 lines
7.0 KiB
Python
295 lines
7.0 KiB
Python
import json
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from functools import reduce
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from collections import defaultdict
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from node import Node, Interface
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from link import Link, LinkConnector
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from itertools import zip_longest
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from bs4 import BeautifulSoup
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from urllib.request import urlopen
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class NodeDB:
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def __init__(self):
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self._nodes = []
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self._links = []
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# fetch list of links
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def get_links(self):
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self.update_vpn_links()
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return self.reduce_links()
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# fetch list of nodes
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def get_nodes(self):
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return self._nodes
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def maybe_node_by_mac(self, macs):
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for node in self._nodes:
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for mac in macs:
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if mac.lower() in node.macs:
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return node
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raise
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# import_batman(list(fileinput.input(options['batmanjson'])))
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def import_batman(self, lines):
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for line in lines:
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x = json.loads(line)
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if 'of' in x:
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try:
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node = self.maybe_node_by_mac((x['of'], x['secondary']))
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except:
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node = Node()
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node.flags['online'] = True
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self._nodes.append(node)
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node.add_mac(x['of'])
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node.add_mac(x['secondary'])
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for line in lines:
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x = json.loads(line)
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if 'router' in x:
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try:
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node = self.maybe_node_by_mac((x['router'], ))
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except:
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node = Node()
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node.flags['online'] = True
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node.add_mac(x['router'])
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self._nodes.append(node)
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# If it's a TT link and the MAC is very similar
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# consider this MAC as one of the routers
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# MACs
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if 'gateway' in x and x['label'] == "TT":
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try:
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router = list(int(i, 16) for i in x['router'].split(":"))
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gateway = list(int(i, 16) for i in x['gateway'].split(":"))
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except ValueError:
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continue
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# first byte must only differ in bit 2
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if router[0] == gateway[0] | 2:
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# count different bytes
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a = [x for x in zip(router[1:], gateway[1:]) if x[0] != x[1]]
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# no more than two additional bytes must differ
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if len(a) <= 2:
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delta = 0
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if len(a) > 0:
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delta = sum(abs(i[0] -i[1]) for i in a)
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if delta < 8:
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# This TT link looks like a mac of the router!
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node.add_mac(x['gateway'])
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# skip processing as regular link
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continue
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try:
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if 'neighbor' in x:
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try:
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node = self.maybe_node_by_mac((x['neighbor']))
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except:
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continue
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if 'gateway' in x:
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x['neighbor'] = x['gateway']
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node = self.maybe_node_by_mac((x['neighbor'], ))
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except:
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node = Node()
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node.flags['online'] = True
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if x['label'] == 'TT':
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node.flags['client'] = True
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node.add_mac(x['neighbor'])
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self._nodes.append(node)
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for line in lines:
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x = json.loads(line)
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if 'router' in x:
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try:
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if 'gateway' in x:
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x['neighbor'] = x['gateway']
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router = self.maybe_node_by_mac((x['router'], ))
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neighbor = self.maybe_node_by_mac((x['neighbor'], ))
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except:
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continue
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# filter TT links merged in previous step
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if router == neighbor:
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continue
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link = Link()
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link.source = LinkConnector()
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link.source.interface = x['router']
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link.source.id = self._nodes.index(router)
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link.target = LinkConnector()
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link.target.interface = x['neighbor']
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link.target.id = self._nodes.index(neighbor)
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link.quality = x['label']
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link.id = "-".join(sorted((link.source.interface, link.target.interface)))
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if x['label'] == "TT":
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link.type = "client"
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self._links.append(link)
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for line in lines:
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x = json.loads(line)
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if 'primary' in x:
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try:
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node = self.maybe_node_by_mac((x['primary'], ))
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except:
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continue
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node.id = x['primary']
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def reduce_links(self):
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tmp_links = defaultdict(list)
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for link in self._links:
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tmp_links[link.id].append(link)
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links = []
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def reduce_link(a, b):
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a.id = b.id
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a.source = b.source
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a.target = b.target
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a.type = b.type
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a.quality = ", ".join([x for x in (a.quality, b.quality) if x])
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return a
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for k, v in tmp_links.items():
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new_link = reduce(reduce_link, v, Link())
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links.append(new_link)
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return links
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def import_aliases(self, aliases):
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for mac, alias in aliases.items():
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try:
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node = self.maybe_node_by_mac((mac, ))
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except:
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continue
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node.name = alias['name']
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if 'vpn' in alias and alias['vpn']:
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node.interfaces[mac].vpn = True
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if 'gps' in alias:
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node.gps = alias['gps']
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# list of macs
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# if options['gateway']:
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# mark_gateways(options['gateway'])
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def mark_gateways(self, gateways):
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for gateway in gateways:
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try:
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node = self.maybe_node_by_mac((gateway, ))
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except:
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continue
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node.flags['gateway'] = True
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def update_vpn_links(self):
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changes = 1
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while changes > 0:
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changes = 0
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for link in self._links:
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if link.type == "client":
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continue
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source_interface = self._nodes[link.source.id].interfaces[link.source.interface]
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target_interface = self._nodes[link.target.id].interfaces[link.target.interface]
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if source_interface.vpn or target_interface.vpn:
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source_interface.vpn = True
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target_interface.vpn = True
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if link.type != "vpn":
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changes += 1
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link.type = "vpn"
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def import_wikigps(self, url):
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def fetch_wikitable(url):
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f = urlopen(url)
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soup = BeautifulSoup(f)
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table = soup.find_all("table")[0]
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rows = table.find_all("tr")
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headers = []
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data = []
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def maybe_strip(x):
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if isinstance(x.string, str):
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return x.string.strip()
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else:
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return ""
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for row in rows:
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tds = list([maybe_strip(x) for x in row.find_all("td")])
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ths = list([maybe_strip(x) for x in row.find_all("th")])
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if any(tds):
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data.append(tds)
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if any(ths):
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headers = ths
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nodes = []
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for d in data:
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nodes.append(dict(zip(headers, d)))
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return nodes
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nodes = fetch_wikitable(url)
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for node in nodes:
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try:
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node['MAC'] = node['MAC'].split(',')
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except KeyError:
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pass
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try:
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node['GPS'] = node['GPS'].split(',')
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except KeyError:
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pass
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try:
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node['Nick'] = node['Nick'].split(',')
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except KeyError:
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pass
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nodes = zip_longest(node['MAC'], node['GPS'], node['Nick'])
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for data in nodes:
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if not data[0]:
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continue
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try:
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node = self.maybe_node_by_mac((data[0], ))
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except:
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node = Node()
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node.add_mac(data[0])
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self._nodes.append(node)
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if data[1]:
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node.gps = data[1]
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if data[2]:
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node.name = data[2]
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