app/browse/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 def b64e(b, padding=True):
   9     return base64.urlsafe_b64encode(b).decode('ascii') \
  10             .replace("=", "%3D" if padding else "")
  11
  12 # SEARCH {{{
  13 @message
  14 @dataclass
  15 class Extras:
  16     verbatim: Optional[bool] = field(1, default=None) # don't fix spelling
  17 @message
  18 @dataclass
  19 class Filters: # adapted from invidious
  20     date:      Optional[int64] = field(1, default=None)
  21     type:      Optional[int64] = field(2, default=None)
  22     length:    Optional[int64] = field(3, default=None)
  23     is_hd:     Optional[bool]  = field(4, default=None)
  24     subtitles: Optional[bool]  = field(5, default=None)
  25     ccommons:  Optional[bool]  = field(6, default=None)
  26     is_3d:     Optional[bool]  = field(7, default=None)
  27     live:      Optional[bool]  = field(8, default=None)
  28     purchased: Optional[bool]  = field(9, default=None)
  29     is_4k:     Optional[bool]  = field(14, default=None)
  30     is_360:    Optional[bool]  = field(15, default=None)
  31     location:  Optional[bool]  = field(23, default=None)
  32     is_hdr:    Optional[bool]  = field(25, default=None)
  33 @message
  34 @dataclass
  35 class SearchRequest:
  36     sorted: Optional[int64] = field(1, default=None)
  37     filter: Optional[Filters] = field(2, default=None)
  38     extras: Optional[Extras] = field(8, default=None)
  39
  40 def make_sp(sort=None, date=None, type=None, len=None, features=[], extras=[]):
  41     sortorder  = dict(relevance=0, rating=1, date=2, views=3)
  42     datefilter = dict(hour=1, day=2, week=3, month=4, year=5)
  43     typefilter = dict(video=1, channel=2, playlist=3, movie=4, show=5)
  44     lenfilter  = dict(short=1, long=2)
  45
  46     return b64e(SearchRequest(
  47         sorted=sortorder.get(sort),
  48         filter=Filters(
  49             date=datefilter.get(date),
  50             type=typefilter.get(type),
  51             length=lenfilter.get(len),
  52             **{f:True for f in features},
  53         ) if date or type or len or features else None,
  54         extras=Extras(**{f:True for f in extras}),
  55     ).dumps())
  56 # }}} SEARCH
  57
  58 # CHANNEL v1/v3 {{{
  59 @message
  60 @dataclass
  61 class SearchOffset:
  62     offset: int64 = field(3, default=0)
  63 @message
  64 @dataclass
  65 class ChannelDataInner:
  66     offset: int64 = field(1)
  67 @message
  68 @dataclass
  69 class ChannelDataContainer:
  70     data: str = field(1)  # base64 of ChannelDataInner
  71 @message
  72 @dataclass
  73 class Subparams:
  74     type_s: str = field(2)
  75     type_i: Optional[int64] = field(4)
  76     page: Optional[str] = field(15)
  77     sort: Optional[int64] = field(3, default=None)
  78     unknown_const1: int64 = field(7, default=1)
  79     unknown_const2: int64 = field(23, default=0)
  80     # usually returns gridResponses. to switch to listResponses (cargo-culting
  81     # invidious, playlist continuations (not yet supported) require list):
  82     list_or_grid: Optional[int64] = field(6,default=2) # 2=list, None/1=grid
  83     # invidious sets those, but no idea why:
  84     #field12:int64 = field(12,default=1)
  85     #field13:str = field(13,default="") # playlists in list mode don't work without this
  86     field61: Optional[str] = field(61, default=None) # base64 channelData
  87 @message
  88 @dataclass
  89 class Params:
  90     subject: str = field(2) # ucid/plid
  91     params: str = field(3)  # b64e encoded
  92     query: Optional[str] = field(11, default=None) # channel search
  93 @message
  94 @dataclass
  95 class Continuation:
  96     params: Params = field(80226972)
  97 def make_channel_params(subject, typ="videos", page=1, sort=None, query=None, v3=False):
  98     typestr = dict(videos="videos", playlists="playlists", search="search")
  99     typeint = dict(videos=0, playlists=1, search=None) # not supporting autogen'd
 100     sortorder = dict(popular=1, oldest=2, newest=3)
 101     if typ == "playlists":
 102         sortorder = dict(newest=3, modified=4)
 103     elif typ == "search":
 104         sortorder = dict()
 105
 106     if page and typ=="search":
 107         _page = b64e(SearchOffset(offset=(page-1)*30).dumps(), padding=False)
 108     else: _page = None
 109
 110     return b64e(Continuation(
 111         params=Params(
 112             subject=subject,
 113             params=b64e(Subparams(
 114                 type_s=typestr.get(typ),
 115                 type_i=typeint.get(typ),
 116                 sort=sortorder.get(sort),
 117                 page=_page,
 118                 field61=b64e(
 119                     ChannelDataContainer(
 120                         data=b64e(
 121                             ChannelDataInner(
 122                                 offset=(page-1)*30
 123                             ).dumps(), padding=False
 124                         )
 125                     ).dumps(), padding=False
 126                 ) if v3 else None
 127             ).dumps()),
 128             query=query,
 129         ),
 130     ).dumps())
 131 # }}} CHANNEL v1/v3
 132
 133 # PLAYLIST {{{
 134 @message
 135 @dataclass
 136 class PlaylistData:
 137     offset: int64 = field(1)
 138 @message
 139 @dataclass
 140 class PlaylistSubparams:
 141     data: str = field(15)
 142 def make_playlist_params(playlist_id, offset):
 143     return b64e(Continuation(
 144         params=Params(
 145             subject="VL" + playlist_id,
 146             params=b64e(PlaylistSubparams(
 147                 data="PT:" + b64e(PlaylistData(
 148                     offset=offset,
 149                 ).dumps(), padding=False)
 150             ).dumps()),
 151         ),
 152     ).dumps())
 153 # }}} PLAYLIST