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import re
from ATRI.utils import request
URL = "https://api.kyomotoi.moe/api/bilibili/v3/video_info?aid="
table = "fZodR9XQDSUm21yCkr6zBqiveYah8bt4xsWpHnJE7jL5VG3guMTKNPAwcF"
tr = dict()
for i in range(58):
tr[table[i]] = i
s = [11, 10, 3, 8, 4, 6]
xor = 177451812
add = 8728348608
class Applet:
@staticmethod
def _bv_dec(x) -> str:
r = 0
for i in range(6):
r += tr[x[s[i]]] * 58**i
return str((r - add) ^ xor)
@staticmethod
def _bv_enc(x) -> str:
x = (x ^ xor) + add
r = list("BV1 4 1 7 ")
for i in range(6):
r[s[i]] = table[x // 58**i % 58]
return "".join(r)
@staticmethod
async def bili_request(url: str) -> str:
req = await request.get(url)
return req.headers.get("location")
@staticmethod
def bili_video_code_catcher(text: str) -> str:
pattern = re.compile(r"BV[0-9A-Za-z]{10}")
result = pattern.findall(text)
return result[0] if result else ""
@classmethod
async def msg_builder(cls, text: str) -> tuple:
bv = cls.bili_video_code_catcher(text)
if not bv:
pattern = r"https://b23.tv/[a-z0-9A-z]{6,7}"
burl = re.findall(pattern, text)
u = burl[0] if burl else str()
if not u:
return None, False
rep = await cls.bili_request(u)
bv = cls.bili_video_code_catcher(rep)
av = cls._bv_dec(bv)
else:
av = cls._bv_dec(bv)
url = URL + av
req = await request.get(url)
res_data = req.json()
data = res_data["data"]
result = (
f"{data['bvid']} INFO:\n"
f"Title: {data['title']}\n"
f"Link: {data['short_link']}"
)
return result, True
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