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Douyin_TikTok_Download_API/crawlers/bilibili/web/wrid.py
Koyomi781 3221c41135 🎨: Update Bilibili API
2024-09-26 11:03:00 +08:00

187 lines
6.6 KiB
Python
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import urllib.parse
def srotl(t, e):
return (t << e) | (t >> (32 - e))
def tendian(t):
if isinstance(t, int):
return (16711935 & srotl(t, 8)) | (4278255360 & srotl(t, 24))
for e in range(len(t)):
t[e] = tendian(t[e])
return t
# 没问题
def tbytes_to_words(t):
e = []
r = 0
for n in range(len(t)):
if r >> 5 >= len(e):
e.append(0)
e[r >> 5] |= t[n] << (24 - r % 32)
r += 8
return e
def jbinstring_to_bytes(t):
e = []
for n in range(len(t)):
e.append(ord(t[n]) & 255)
return e
# 没问题
def estring_to_bytes(t):
return jbinstring_to_bytes(urllib.parse.unquote(urllib.parse.quote(t)))
def _ff(t, e, n, r, o, i, a):
# 计算中间值 c
c = t + ((e & n) | (~e & r)) + (o & 0xFFFFFFFF) + a
# 将 c 转换为 32 位无符号整数
c = c & 0xFFFFFFFF
# 左移和右移操作
c = (c << i | c >> (32 - i)) & 0xFFFFFFFF
# 返回结果
return (c + e) & 0xFFFFFFFF
def _gg(t, e, n, r, o, i, a):
# 计算中间值 c
c = t + ((e & r) | (n & ~r)) + (o & 0xFFFFFFFF) + a
# 将 c 转换为 32 位无符号整数
c = c & 0xFFFFFFFF
# 左移和右移操作
c = (c << i | c >> (32 - i)) & 0xFFFFFFFF
# 返回结果
return (c + e) & 0xFFFFFFFF
def _hh(t, e, n, r, o, i, a):
# 计算中间值 c
c = t + (e ^ n ^ r) + (o & 0xFFFFFFFF) + a
# 将 c 转换为 32 位无符号整数
c = c & 0xFFFFFFFF
# 左移和右移操作
c = (c << i | c >> (32 - i)) & 0xFFFFFFFF
# 返回结果
return (c + e) & 0xFFFFFFFF
def _ii(t, e, n, r, o, i, a):
# 计算中间值 c
c = t + (n ^ (e | ~r)) + (o & 0xFFFFFFFF) + a
# 将 c 转换为 32 位无符号整数
c = c & 0xFFFFFFFF
# 左移和右移操作
c = (c << i | c >> (32 - i)) & 0xFFFFFFFF
# 返回结果
return (c + e) & 0xFFFFFFFF
def o(i, a):
if isinstance(i, str):
i = estring_to_bytes(i)
elif isinstance(i, (list, tuple)):
i = list(i)
elif not isinstance(i, (list, bytearray)):
i = str(i)
c = tbytes_to_words(i)
u = 8 * len(i)
s, l, f, p = 1732584193, -271733879, -1732584194, 271733878
for d in range(len(c)):
c[d] = (16711935 & (c[d] << 8 | c[d] >> 24)) | (4278255360 & (c[d] << 24 | c[d] >> 8))
# 确保列表 c 的长度足够大
while len(c) <= (14 + ((u + 64 >> 9) << 4)):
c.append(0)
c[u >> 5] |= 128 << (u % 32)
c[14 + ((u + 64 >> 9) << 4)] = u
h, v, y, m = _ff, _gg, _hh, _ii
for d in range(0, len(c), 16):
g, b, w, A = s, l, f, p
# 确保在访问索引之前扩展列表的长度
while len(c) <= d + 15:
c.append(0)
s = h(s, l, f, p, c[d + 0], 7, -680876936)
p = h(p, s, l, f, c[d + 1], 12, -389564586)
f = h(f, p, s, l, c[d + 2], 17, 606105819)
l = h(l, f, p, s, c[d + 3], 22, -1044525330)
s = h(s, l, f, p, c[d + 4], 7, -176418897)
p = h(p, s, l, f, c[d + 5], 12, 1200080426)
f = h(f, p, s, l, c[d + 6], 17, -1473231341)
l = h(l, f, p, s, c[d + 7], 22, -45705983)
s = h(s, l, f, p, c[d + 8], 7, 1770035416)
p = h(p, s, l, f, c[d + 9], 12, -1958414417)
f = h(f, p, s, l, c[d + 10], 17, -42063)
l = h(l, f, p, s, c[d + 11], 22, -1990404162)
s = h(s, l, f, p, c[d + 12], 7, 1804603682)
p = h(p, s, l, f, c[d + 13], 12, -40341101)
f = h(f, p, s, l, c[d + 14], 17, -1502002290)
s = v(s, l := h(l, f, p, s, c[d + 15], 22, 1236535329), f, p, c[d + 1], 5, -165796510)
p = v(p, s, l, f, c[d + 6], 9, -1069501632)
f = v(f, p, s, l, c[d + 11], 14, 643717713)
l = v(l, f, p, s, c[d + 0], 20, -373897302)
s = v(s, l, f, p, c[d + 5], 5, -701558691)
p = v(p, s, l, f, c[d + 10], 9, 38016083)
f = v(f, p, s, l, c[d + 15], 14, -660478335)
l = v(l, f, p, s, c[d + 4], 20, -405537848)
s = v(s, l, f, p, c[d + 9], 5, 568446438)
p = v(p, s, l, f, c[d + 14], 9, -1019803690)
f = v(f, p, s, l, c[d + 3], 14, -187363961)
l = v(l, f, p, s, c[d + 8], 20, 1163531501)
s = v(s, l, f, p, c[d + 13], 5, -1444681467)
p = v(p, s, l, f, c[d + 2], 9, -51403784)
f = v(f, p, s, l, c[d + 7], 14, 1735328473)
s = y(s, l := v(l, f, p, s, c[d + 12], 20, -1926607734), f, p, c[d + 5], 4, -378558)
p = y(p, s, l, f, c[d + 8], 11, -2022574463)
f = y(f, p, s, l, c[d + 11], 16, 1839030562)
l = y(l, f, p, s, c[d + 14], 23, -35309556)
s = y(s, l, f, p, c[d + 1], 4, -1530992060)
p = y(p, s, l, f, c[d + 4], 11, 1272893353)
f = y(f, p, s, l, c[d + 7], 16, -155497632)
l = y(l, f, p, s, c[d + 10], 23, -1094730640)
s = y(s, l, f, p, c[d + 13], 4, 681279174)
p = y(p, s, l, f, c[d + 0], 11, -358537222)
f = y(f, p, s, l, c[d + 3], 16, -722521979)
l = y(l, f, p, s, c[d + 6], 23, 76029189)
s = y(s, l, f, p, c[d + 9], 4, -640364487)
p = y(p, s, l, f, c[d + 12], 11, -421815835)
f = y(f, p, s, l, c[d + 15], 16, 530742520)
s = m(s, l := y(l, f, p, s, c[d + 2], 23, -995338651), f, p, c[d + 0], 6, -198630844)
p = m(p, s, l, f, c[d + 7], 10, 1126891415)
f = m(f, p, s, l, c[d + 14], 15, -1416354905)
l = m(l, f, p, s, c[d + 5], 21, -57434055)
s = m(s, l, f, p, c[d + 12], 6, 1700485571)
p = m(p, s, l, f, c[d + 3], 10, -1894986606)
f = m(f, p, s, l, c[d + 10], 15, -1051523)
l = m(l, f, p, s, c[d + 1], 21, -2054922799)
s = m(s, l, f, p, c[d + 8], 6, 1873313359)
p = m(p, s, l, f, c[d + 15], 10, -30611744)
f = m(f, p, s, l, c[d + 6], 15, -1560198380)
l = m(l, f, p, s, c[d + 13], 21, 1309151649)
s = m(s, l, f, p, c[d + 4], 6, -145523070)
p = m(p, s, l, f, c[d + 11], 10, -1120210379)
f = m(f, p, s, l, c[d + 2], 15, 718787259)
l = m(l, f, p, s, c[d + 9], 21, -343485551)
s = (s + g) >> 0 & 0xFFFFFFFF
l = (l + b) >> 0 & 0xFFFFFFFF
f = (f + w) >> 0 & 0xFFFFFFFF
p = (p + A) >> 0 & 0xFFFFFFFF
return tendian([s, l, f, p])
def twords_to_bytes(t):
e = []
for n in range(0, 32 * len(t), 8):
e.append((t[n >> 5] >> (24 - n % 32)) & 255)
return e
def tbytes_to_hex(t):
e = []
for n in range(len(t)):
e.append(hex(t[n] >> 4)[2:])
e.append(hex(t[n] & 15)[2:])
return ''.join(e)
def get_wrid(e):
n = None
i = twords_to_bytes(o(e, n))
return tbytes_to_hex(i)
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