app/dangerous/protobuf.py

   1 import base64
   2 from dataclasses import dataclass
   3 from typing import Optional
   4
   5 from pure_protobuf.dataclasses_ import field, message
   6 from pure_protobuf.types import int64
   7
   8 @message
   9 @dataclass
  10 class Extras:
  11     dont_fix_spelling: Optional[bool] = field(1, default=None)
  12 @message
  13 @dataclass
  14 class Filters: # adapted from invidious
  15     date:      Optional[int64] = field(1, default=None)
  16     type:      Optional[int64] = field(2, default=None)
  17     length:    Optional[int64] = field(3, default=None)
  18     is_hd:     Optional[bool]  = field(4, default=None)
  19     subtitles: Optional[bool]  = field(5, default=None)
  20     ccommons:  Optional[bool]  = field(6, default=None)
  21     is_3d:     Optional[bool]  = field(7, default=None)
  22     live:      Optional[bool]  = field(8, default=None)
  23     purchased: Optional[bool]  = field(9, default=None)
  24     is_4k:     Optional[bool]  = field(14, default=None)
  25     is_360:    Optional[bool]  = field(15, default=None)
  26     location:  Optional[bool]  = field(23, default=None)
  27     is_hdr:    Optional[bool]  = field(25, default=None)
  28 @message
  29 @dataclass
  30 class SearchRequest:
  31     sorted: Optional[int64] = field(1, default=None)
  32     filter: Optional[Filters] = field(2, default=None)
  33     extras: Optional[Extras] = field(8, default=None)
  34
  35 def b64e(b, padding=True):
  36     return base64.urlsafe_b64encode(b).decode('ascii') \
  37             .replace("=", "%3D" if padding else "")
  38
  39 def make_sp(sort=None, date=None, type=None, len=None, features=[], extras=[]):
  40     sortorder  = dict(relevance=0, rating=1, date=2, views=3)
  41     datefilter = dict(hour=1, day=2, week=3, month=4, year=5)
  42     typefilter = dict(video=1, channel=2, playlist=3, movie=4, show=5)
  43     lenfilter  = dict(short=1, long=2)
  44
  45     return b64e(SearchRequest(
  46         sorted=sortorder.get(sort),
  47         filter=Filters(
  48             date=datefilter.get(date),
  49             type=typefilter.get(type),
  50             length=lenfilter.get(len),
  51             **{f:True for f in features},
  52         ) if date or type or len or features else None,
  53         extras=Extras(**{f:True for f in extras}),
  54     ).dumps())
  55
  56 @message
  57 @dataclass
  58 class PlaylistData:
  59     offset: int64 = field(1)
  60 @message
  61 @dataclass
  62 class PlaylistSubparams:
  63     data: str = field(15)
  64 @message
  65 @dataclass
  66 class Subparams:
  67     type_s: str = field(2)
  68     type_i: int64 = field(4)
  69     page: Optional[str] = field(15)
  70     sort: Optional[int64] = field(3, default=None)
  71     unknown_const1: int64 = field(7, default=1)
  72     unknown_const2: int64 = field(23, default=0)
  73     list_or_grid: Optional[int64] = field(6,default=2) # 2=list, None/1=grid
  74     # usually returns gridResponses. to switch to listResponses:
  75     #list_or_grid:int64 = field(6,default=2) # 2==list, undef=grid (playlist continuations require list)
  76     #field12:int64 = field(12,default=1)
  77     #field13:str = field(13,default="") # playlists in list mode don't work without this
  78 @message
  79 @dataclass
  80 class Params:
  81     subject: str = field(2) # ucid/plid
  82     params: str = field(3)  # b64e encoded
  83 @message
  84 @dataclass
  85 class Continuation:
  86     params: Params = field(80226972)
  87 def make_channel_params(subject, typ="videos", page=1, sort=None):
  88     typestr = dict(videos="videos", playlists="playlists")
  89     typeint = dict(videos=0, playlists=1) # not supporting autogen'd
  90     sortorder = dict(newest=None, popular=1, oldest=2)
  91     if typ == "playlists":
  92         sortorder = dict(oldest=2, newest=3, modified=4)
  93
  94     return b64e(Continuation(
  95         params=Params(
  96             subject=subject,
  97             params=b64e(Subparams(
  98                 type_s=typestr.get(typ),
  99                 type_i=typeint.get(typ),
 100                 sort=sortorder.get(sort),
 101                 page=str(page) if page else None # Note: ucid/playlists doesn't support pagination
 102             ).dumps()),
 103         ),
 104     ).dumps())
 105
 106 def make_playlist_params(playlist_id, offset):
 107     if playlist_id.startswith("UC"):
 108         playlist_id = f"UU{playlist_id[2:]}"
 109
 110     return b64e(Continuation(
 111         params=Params(
 112             subject="VL" + playlist_id,
 113             params=b64e(PlaylistSubparams(
 114                 data="PT:" + b64e(PlaylistData(
 115                     offset=offset,
 116                 ).dumps(), padding=False)
 117             ).dumps()),
 118         ),
 119     ).dumps())