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has-writeup/aaaa/spacebook/spacebook-original.py

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2020-06-01 05:04:44 +00:00
import numpy as np
from pwnlib import tubes
import time
import matplotlib.pyplot as plt
from rmsd import calculate_rmsd
from scipy.spatial.transform import Rotation
%matplotlib inline
def read_starfile(data):
stars = []
for line in data.strip().split('\n'):
[x,y,z,m] = [float(s.strip()) for s in line.split(',')]
stars.append({'v': np.array([x,y,z]), 'm':m})
return stars
with open('./spacebook-golf56788echo/test.txt') as f:
catalog = read_starfile(f.read())
TICKET = 'THE_TICKET'
r = tubes.remote.remote('spacebook.satellitesabove.me', 5015)
r.send(TICKET+'\n')
time.sleep(0.5)
r.recvuntil('Ticket please:\n', drop=True)
for _ in range(5):
refstars = read_starfile(r.recvuntil('\n\n').decode())
refstars_magsorted = sorted(refstars, key=lambda x:x['m'])[::-1]
catalog_magnitudes = np.array([x['m'] for x in catalog])
matches = []
for idx, star in enumerate(refstars_magsorted):
if star['m'] <= 500:
break
match = np.argmin(np.abs(catalog_magnitudes-star['m']))
matches.append(match)
print(matches)
P = np.vstack([x['v'] for x in [catalog[i] for i in matches]])
Q = np.vstack([x['v'] for x in refstars_magsorted[:4]])
print("rmsd: {}".format(calculate_rmsd.kabsch_rmsd(P,Q)))
rotation_mtx = calculate_rmsd.kabsch(P, Q)
rotation = Rotation.from_matrix(rotation_mtx)
rotated = [dict(v=rotation.apply(x['v']), m=x['m']) for x in refstars_magsorted]
found_idxes = []
for star in rotated:
found_idxes.append(np.argmin([np.linalg.norm(star['v']-catalogstar['v']) for catalogstar in catalog]))
r.send(','.join([str(x) for x in found_idxes]) + '\n')
time.sleep(0.1)
r.recvuntil('Left...\n')
print(r.clean())