sig2dot.py

sig2dot.py

# Visualize GnuPG Trust Web
# usage: gpg --list-sigs | python3 ./sig2dot.py

import fileinput
import re
import networkx
from matplotlib import pyplot

lines = [i for i in fileinput.input() if not i.startswith('sub')]
# lines = [i for i in open("gpg.txt", "r").readlines() if not i.startswith('sub')]
lines.reverse()

regex_uid = re.compile(r"(?<=\d{4}-\d{2}-\d{2}).*$")
regex_uid2 = re.compile(r"(?<=\]).*$")

public = dict()

while lines:
    signers = set()
    breakers = set()
    line = lines.pop()
    while not line.startswith('uid'):
        line = lines.pop()
    uid = regex_uid2.search(line).group().strip()
    while True:
        line = lines.pop()
        if line.startswith('uid') and 'jpeg image' not in line:
            if uid not in line:
                result = regex_uid2.search(line).group().strip()
                signers.add(result)
        elif line.startswith('sig'):
            if '用户标识未找到' not in line and '自签名' not in line and 'self-signature' not in line and 'User ID not found' not in line:
                if uid not in line:
                    result = regex_uid.search(line).group().strip()
                    signers.add(result)
        elif line.startswith('rev'):
            result = regex_uid.search(line).group().strip()
            breakers.add(result)
        else:
            break
    public[uid] = [signers, breakers]

G = networkx.MultiDiGraph()

for key, items in public.items():
    for signer in items[0]:
        G.add_edge(signer, key, color='k')
    for breaker in items[1]:
        G.add_edge(breaker, key, color='r')

colors = networkx.get_edge_attributes(G, 'color').values()

pos = networkx.spring_layout(G)

networkx.draw(G, pos, with_labels=True, node_size=2000, edge_color=colors)
pyplot.show()

original from https://dustri.org/b/visualising-gpg-web-of-trust-with-python.html