+from ..compat import (
+ compat_parse_qs,
+ compat_str,
+ compat_urllib_parse,
+ compat_urllib_parse_urlparse,
+)
+from ..utils import (
+ ExtractorError,
+ ohdave_rsa_encrypt,
+ remove_start,
+ sanitized_Request,
+ urlencode_postdata,
+ url_basename,
+)
+
+
+def md5_text(text):
+ return hashlib.md5(text.encode('utf-8')).hexdigest()
+
+
+class IqiyiSDK(object):
+ def __init__(self, target, ip, timestamp):
+ self.target = target
+ self.ip = ip
+ self.timestamp = timestamp
+
+ @staticmethod
+ def split_sum(data):
+ return compat_str(sum(map(lambda p: int(p, 16), list(data))))
+
+ @staticmethod
+ def digit_sum(num):
+ if isinstance(num, int):
+ num = compat_str(num)
+ return compat_str(sum(map(int, num)))
+
+ def even_odd(self):
+ even = self.digit_sum(compat_str(self.timestamp)[::2])
+ odd = self.digit_sum(compat_str(self.timestamp)[1::2])
+ return even, odd
+
+ def preprocess(self, chunksize):
+ self.target = md5_text(self.target)
+ chunks = []
+ for i in range(32 // chunksize):
+ chunks.append(self.target[chunksize * i:chunksize * (i + 1)])
+ if 32 % chunksize:
+ chunks.append(self.target[32 - 32 % chunksize:])
+ return chunks, list(map(int, self.ip.split('.')))
+
+ def mod(self, modulus):
+ chunks, ip = self.preprocess(32)
+ self.target = chunks[0] + ''.join(map(lambda p: compat_str(p % modulus), ip))
+
+ def split(self, chunksize):
+ modulus_map = {
+ 4: 256,
+ 5: 10,
+ 8: 100,
+ }
+
+ chunks, ip = self.preprocess(chunksize)
+ ret = ''
+ for i in range(len(chunks)):
+ ip_part = compat_str(ip[i] % modulus_map[chunksize]) if i < 4 else ''
+ if chunksize == 8:
+ ret += ip_part + chunks[i]
+ else:
+ ret += chunks[i] + ip_part
+ self.target = ret
+
+ def handle_input16(self):
+ self.target = md5_text(self.target)
+ self.target = self.split_sum(self.target[:16]) + self.target + self.split_sum(self.target[16:])
+
+ def handle_input8(self):
+ self.target = md5_text(self.target)
+ ret = ''
+ for i in range(4):
+ part = self.target[8 * i:8 * (i + 1)]
+ ret += self.split_sum(part) + part
+ self.target = ret
+
+ def handleSum(self):
+ self.target = md5_text(self.target)
+ self.target = self.split_sum(self.target) + self.target
+
+ def date(self, scheme):
+ self.target = md5_text(self.target)
+ d = time.localtime(self.timestamp)
+ strings = {
+ 'y': compat_str(d.tm_year),
+ 'm': '%02d' % d.tm_mon,
+ 'd': '%02d' % d.tm_mday,
+ }
+ self.target += ''.join(map(lambda c: strings[c], list(scheme)))
+
+ def split_time_even_odd(self):
+ even, odd = self.even_odd()
+ self.target = odd + md5_text(self.target) + even
+
+ def split_time_odd_even(self):
+ even, odd = self.even_odd()
+ self.target = even + md5_text(self.target) + odd
+
+ def split_ip_time_sum(self):
+ chunks, ip = self.preprocess(32)
+ self.target = compat_str(sum(ip)) + chunks[0] + self.digit_sum(self.timestamp)
+
+ def split_time_ip_sum(self):
+ chunks, ip = self.preprocess(32)
+ self.target = self.digit_sum(self.timestamp) + chunks[0] + compat_str(sum(ip))
+
+
+class IqiyiSDKInterpreter(object):
+ BASE62_TABLE = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
+
+ def __init__(self, sdk_code):
+ self.sdk_code = sdk_code
+
+ @classmethod
+ def base62(cls, num):
+ if num == 0:
+ return '0'
+ ret = ''
+ while num:
+ ret = cls.BASE62_TABLE[num % 62] + ret
+ num = num // 62
+ return ret
+
+ def decode_eval_codes(self):
+ self.sdk_code = self.sdk_code[5:-3]
+
+ mobj = re.search(
+ r"'([^']+)',62,(\d+),'([^']+)'\.split\('\|'\),[^,]+,{}",
+ self.sdk_code)
+ obfucasted_code, count, symbols = mobj.groups()
+ count = int(count)
+ symbols = symbols.split('|')
+ symbol_table = {}
+
+ while count:
+ count -= 1
+ b62count = self.base62(count)
+ symbol_table[b62count] = symbols[count] or b62count
+
+ self.sdk_code = re.sub(
+ r'\b(\w+)\b', lambda mobj: symbol_table[mobj.group(0)],
+ obfucasted_code)
+
+ def run(self, target, ip, timestamp):
+ self.decode_eval_codes()
+
+ functions = re.findall(r'input=([a-zA-Z0-9]+)\(input', self.sdk_code)
+
+ sdk = IqiyiSDK(target, ip, timestamp)
+
+ other_functions = {
+ 'handleSum': sdk.handleSum,
+ 'handleInput8': sdk.handle_input8,
+ 'handleInput16': sdk.handle_input16,
+ 'splitTimeEvenOdd': sdk.split_time_even_odd,
+ 'splitTimeOddEven': sdk.split_time_odd_even,
+ 'splitIpTimeSum': sdk.split_ip_time_sum,
+ 'splitTimeIpSum': sdk.split_time_ip_sum,
+ }
+ for function in functions:
+ if re.match(r'mod\d+', function):
+ sdk.mod(int(function[3:]))
+ elif re.match(r'date[ymd]{3}', function):
+ sdk.date(function[4:])
+ elif re.match(r'split\d+', function):
+ sdk.split(int(function[5:]))
+ elif function in other_functions:
+ other_functions[function]()
+ else:
+ raise ExtractorError('Unknown funcion %s' % function)
+
+ return sdk.target
Rapsys Git / youtubedl / blobdiff