70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
import random
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import time
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from . import enc
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from base64 import urlsafe_b64encode as b64enc
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from urllib.parse import quote
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def _header(video_id, channel_id) -> str:
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S1_3 = enc.rs(1, video_id)
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S1_5 = enc.rs(1, channel_id) + enc.rs(2, video_id)
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S1 = enc.rs(3, S1_3) + enc.rs(5, S1_5)
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S3 = enc.rs(48687757, enc.rs(1, video_id))
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header_replay = enc.rs(1, S1) + enc.rs(3, S3) + enc.nm(4, 1)
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return b64enc(header_replay)
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def _build(video_id, channel_id, ts1, ts2, ts3, ts4, ts5, topchat_only) -> str:
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chattype = 4 if topchat_only else 1
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b1 = enc.nm(1, 0)
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b2 = enc.nm(2, 0)
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b3 = enc.nm(3, 0)
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b4 = enc.nm(4, 0)
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b7 = enc.rs(7, '')
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b8 = enc.nm(8, 0)
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b9 = enc.rs(9, '')
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timestamp2 = enc.nm(10, ts2)
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b11 = enc.nm(11, 3)
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b15 = enc.nm(15, 0)
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header = enc.rs(3, _header(video_id, channel_id))
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timestamp1 = enc.nm(5, ts1)
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s6 = enc.nm(6, 0)
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s7 = enc.nm(7, 0)
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s8 = enc.nm(8, 1)
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body = enc.rs(9, b''.join(
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(b1, b2, b3, b4, b7, b8, b9, timestamp2, b11, b15)))
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timestamp3 = enc.nm(10, ts3)
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timestamp4 = enc.nm(11, ts4)
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s13 = enc.nm(13, chattype)
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chattype = enc.rs(16, enc.nm(1, chattype))
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s17 = enc.nm(17, 0)
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str19 = enc.rs(19, enc.nm(1, 0))
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timestamp5 = enc.nm(20, ts5)
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entity = b''.join((header, timestamp1, s6, s7, s8, body, timestamp3,
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timestamp4, s13, chattype, s17, str19, timestamp5))
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continuation = enc.rs(119693434, entity)
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return quote(b64enc(continuation).decode())
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def _times(past_sec):
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n = int(time.time())
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_ts1 = n - random.uniform(0, 1 * 3)
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_ts2 = n - random.uniform(0.01, 0.99)
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_ts3 = n - past_sec + random.uniform(0, 1)
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_ts4 = n - random.uniform(10 * 60, 60 * 60)
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_ts5 = n - random.uniform(0.01, 0.99)
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return list(map(lambda x: int(x * 1000000), [_ts1, _ts2, _ts3, _ts4, _ts5]))
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def getparam(video_id, channel_id, past_sec=0, topchat_only=False) -> str:
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'''
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Parameter
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---------
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past_sec : int
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seconds to load past chat data
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topchat_only : bool
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if True, fetch only 'top chat'
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'''
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return _build(video_id, channel_id, *_times(past_sec), topchat_only) |