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#!/usr/bin/env python3
from livestreamer.compat import urllib, bytes
from livestreamer.plugins import PluginError
import hmac, hashlib, zlib, argparse
SWF_KEY = b"Genuine Adobe Flash Player 001"
class CommandLine(object):
def __init__(self, command):
self.command = command
self.args = {}
self.pipe = None
def format(self):
args = []
for key, value in self.args.items():
if value == True:
args.append(("--{0}").format(key))
else:
escaped = str(value).replace('"', '\\"').replace("$", "\$").replace("`", "\`")
args.append(("--{0} \"{1}\"").format(key, escaped))
args = (" ").join(args)
cmdline = ("{0} {1}").format(self.command, args)
if self.pipe:
cmdline += (" | {0}").format(self.pipe)
return cmdline
class ArgumentParser(argparse.ArgumentParser):
def convert_arg_line_to_args(self, line):
split = line.find("=")
key = line[:split].strip()
val = line[split+1:].strip()
yield "--%s=%s" % (key, val)
def urlget(url, data=None, timeout=None, opener=None):
try:
if opener is not None:
fd = opener.open(url)
else:
fd = urllib.urlopen(url, data, timeout)
data = fd.read()
fd.close()
except IOError as err:
if type(err) is urllib.URLError:
raise PluginError(err.reason)
else:
raise PluginError(err)
return data
def swfverify(url):
swf = urlget(url)
if swf[:3] == b"CWS":
swf = b"F" + swf[1:8] + zlib.decompress(swf[8:])
h = hmac.new(SWF_KEY, swf, hashlib.sha256)
return h.hexdigest(), len(swf)
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