52 lines
1.3 KiB
Python
52 lines
1.3 KiB
Python
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#!/usr/bin/python
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# -*- coding: utf8 -*-
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from xml.etree.ElementTree import parse
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from urllib import urlopen
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import sys
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if len(sys.argv) != 2:
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sys.exit("give the id as an argument")
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mid = sys.argv[1]
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# parse xml
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doc = parse(urlopen("http://www.megavideo.com/xml/videolink.php?v="+mid))
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row = doc._root._children[0]
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# get variables
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un = row.attrib['un']
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k1 = row.attrib['k1']
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k2 = row.attrib['k2']
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title = row.attrib['title']
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server = row.attrib['s']
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# convert each hex value into binary number string, padded to length four
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dlhash = list(''.join([bin(int(c, 16))[2:].rjust(4, "0") for c in un]))
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rand = list()
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# fill list with pseudo random numbers
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for i in xrange(384):
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k1 = (int(k1)*11 + 77213)%81371
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k2 = (int(k2)*17 + 92717)%192811
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rand.append((k1+k2)%128)
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# swap certain values
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for i in xrange(256, -1, -1):
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j = rand[i]
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k = i%128
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tmp = dlhash[j]
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dlhash[j] = dlhash[k]
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dlhash[k] = tmp
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# xor with last random number bit
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for i in xrange(128):
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dlhash[i] = str(int(dlhash[i]) ^ (rand[i+256] & 1))
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# split list into strings of length four
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dlhash = [''.join(dlhash[i:i+4]) for i in range(0,128,4)]
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# convert binary to hex
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dlhash = ''.join([hex(int(c,2))[2:] for c in dlhash])
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print "wget http://www"+server+".megavideo.com/files/"+dlhash+"/"+title+".flv"
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