app/dangerous/__init__.py

   1 # this is an alternative to proxying through invidious. the search endpoint has only been (loosely) tested by
   2 #17:50 < perflyst[m]> appears to be working
   3 #, so i hope™ this works. if not, that's why it's in the 'dangerous' blueprint
   4 import requests
   5 from flask import Blueprint, render_template, request, flash, g, url_for, redirect
   6
   7 from ..common.common import *
   8 from ..common.innertube import *
   9 from .lib import *
  10 from .protobuf import make_sp, make_channel_params, make_playlist_params
  11
  12 frontend = Blueprint('dangerous', __name__,
  13     template_folder='templates',
  14     static_folder='static',
  15     static_url_path='/static/ys')
  16
  17 @frontend.route('/search')
  18 def search():
  19     #token = getattr(current_user, 'token', 'guest')
  20     q = request.args.get('q')
  21     page = int(request.args.get('page', 1))
  22
  23     sp = make_sp(**{
  24         k:v for k,v in request.args.items()
  25         if k in ['sort','date','type','len']
  26     }, extras=['dont_fix_spelling']*0) # extras disabled
  27
  28     if q:
  29         yt_results = fetch_searchresults(q, page, sp)
  30
  31         results, extras = prepare_searchresults(yt_results)
  32
  33         for extra in extras:
  34             flash(extra, 'info')
  35     else:
  36         results = None
  37
  38     return render_template('search.html.j2', rows=results, query=q, page=page)
  39
  40 # TODO: channels, playlists:
  41 # https://github.com/iv-org/invidious/blob/452d1e8307d6344dd51c5437ccd032a566291c34/src/invidious/channels.cr#L399
  42
  43 @frontend.route('/channel/<channel_id>/')
  44 @frontend.route('/channel/<channel_id>/<subpage>')
  45 def channel(channel_id, subpage="videos"):
  46     if subpage == "videos":
  47         page = int(request.args.get('page', 1))
  48         sort_by = request.args.get('sort', "newest")
  49         query = None
  50     elif subpage == "playlists":
  51         page = None # TODO: cursor
  52         sort_by = request.args.get('sort', "modified")
  53         query = None
  54     elif subpage == "search":
  55         query = request.args.get('q')
  56         page = int(request.args.get('page', 1))
  57         sort_by = None
  58     else: # we don't support /home, /about, ..., so redirect to /videos.
  59         return redirect(url_for('.channel', channel_id=channel_id))
  60
  61     result = fetch_ajax(make_channel_params(channel_id, subpage, page, sort_by, query))
  62
  63     # Note: as of 2020-08-15, using the v1 format sometimes returns an error. if that's the case, try v2.
  64     alert = listget(listget(result,1,{}).get('response',{}).get('alerts',[]),0,{}).get('alertRenderer',{})
  65     if alert.get('type','') == "ERROR": # alert['text']['simpleText'] == "Unknown error."
  66         result = fetch_ajax(make_channel_params(channel_id, subpage, page, sort_by, query, v2=True))
  67
  68     title, descr, thumb, rows, more = prepare_channel(result, channel_id)
  69     # TODO: add is_pinned/is_hidden
  70
  71     if title is None: # if both v1 and v2 failed, fall back to xmlfeed:
  72         flash("unable to fetch results from ajax; displaying fallback results (15 newest)", "error")
  73         return fallback_route(channel_id, subpage)
  74
  75     return render_template('channel.html.j2',
  76         title=title,
  77         subpage=subpage,
  78         rows=rows,
  79         channel_id=channel_id,
  80         channel_img=thumb,
  81         channel_desc=descr,
  82         page=page,
  83         has_more=more)
  84
  85 @frontend.route('/user/<user>')
  86 @frontend.route('/user/<user>/<subpage>')
  87 @frontend.route('/c/<user>')
  88 @frontend.route('/c/<user>/<subpage>')
  89 def channel_redirect(user, subpage=None):
  90     """
  91     The browse_ajax 'API' needs the UCID. We can get that from the RSS feeds.
  92     """
  93     xmlfeed = fetch_xml("user", user)
  94     _, _, _, channel_id, _ = parse_xml(xmlfeed)
  95     return redirect(
  96         url_for('.channel', channel_id=channel_id, subpage=subpage), 308
  97     )
  98
  99 @frontend.route('/playlist')
 100 def playlist():
 101     #TODO: if anything goes wrong, fall back to xmlfeed
 102     playlist_id = request.args.get('list')
 103     if not playlist_id:
 104         return "bad list id", 400 # todo
 105     page = int(request.args.get('page', 1))
 106
 107     xmlfeed = fetch_xml("playlist_id", playlist_id)
 108     if not xmlfeed:
 109         return "not found or something", 404 # XXX
 110     title, author, _, channel_id, _ = parse_xml(xmlfeed)
 111
 112     offset = (page-1)*100 # each call returns 100 items
 113     result = fetch_ajax(make_playlist_params(playlist_id, offset))
 114
 115     rows, more = prepare_playlist(result)
 116
 117     return render_template('playlist.html.j2',
 118         title=title,
 119         author=author,
 120         channel_id=channel_id,
 121         rows=rows,
 122         page=page,
 123         has_more=more)
 124
 125 @frontend.before_app_request
 126 def inject_button():
 127     if not 'header_items' in g:
 128         g.header_items = []
 129     g.header_items.append({
 130         'name': 'search',
 131         'url': url_for('dangerous.search'),
 132         'parent': frontend.name,
 133         'priority': 15,
 134     })