app/reddit/__init__.py

   1 import re
   2 import sqlite3
   3 from flask_login import current_user, login_required
   4 from flask import Blueprint, render_template, request, redirect, flash
   5
   6 from ..common.common import *
   7
   8 frontend = Blueprint('reddit', __name__,
   9     template_folder='templates',
  10     static_folder='static',
  11     static_url_path='/static/rd')
  12
  13 @frontend.route('/feed/subreddits')
  14 @frontend.route('/r/<subreddit>')
  15 def reddit(subreddit=None):
  16     token = getattr(current_user, 'token', 'guest')
  17     count = int(request.args.get('count', 0))
  18     before = request.args.get('before')
  19     after = request.args.get('after')
  20
  21     sortorder = request.args.get('s', "hot") # TODO: verify!
  22     timerange = request.args.get('t', None) # TODO: verify!
  23
  24     all_subreddits = get_subreddits(token)
  25     subreddits = [subreddit] if subreddit else all_subreddits
  26
  27     try:
  28         data = fetch_reddit(subreddits,
  29                 sorted_by=sortorder, time=timerange, limit=36,
  30                 count=count, before=before, after=after)
  31         videos = parse_reddit_videos(data)
  32         before = data['data']['before']
  33         after = data['data']['after']
  34     except RedditException as e:
  35         return f"error retrieving reddit data: {e}", 502 # TODO: better
  36
  37     # TODO: for /feed/reddit: pin/hide videos
  38
  39     title = f"/r/{subreddit}" if subreddit else "my subreddits"
  40     return render_template('reddit.html.j2', title=title, rows=videos,
  41         subreddits=all_subreddits, before=before, after=after, count=count)
  42
  43 @frontend.route('/manage/subreddits')
  44 # disabled for guest user: @login_required
  45 def subscription_manager():
  46     token = getattr(current_user, 'token', 'guest')
  47     subreddits = get_subreddits(token)
  48     return render_template('subreddit_manager.html.j2', subreddits=subreddits)
  49
  50 @frontend.route('/feed/subreddits', methods=['POST'])
  51 @login_required
  52 def feed_post():
  53     token = current_user.token
  54
  55     action = next(request.form.keys(), None)
  56     if action in ['pin', 'unpin', 'hide']:
  57         post_id = request.form.get(action)
  58         display = {
  59             'pin': 'pinned',
  60             'unpin': None,
  61             'hide': 'hidden',
  62         }[action]
  63         with sqlite3.connect(cf['global']['database']) as conn:
  64             c = conn.cursor()
  65             c.execute("""
  66                         INSERT OR REPLACE INTO flags (user, post_id, display)
  67                         VALUES (?, ?, ?)
  68                 """, (token, post_id, display))
  69     else:
  70         flash("unsupported action", "error")
  71     return redirect(request.url, code=303)
  72
  73 @frontend.route('/manage/subreddits', methods=['POST'])
  74 @login_required
  75 def manage_subscriptions():
  76     token = current_user.token
  77     if 'subscribe' in request.form:
  78         subreddit = request.form.get("subscribe")
  79         match = re.search(r"(?:(?:https?://)?(?:old.|www.|\w\w.)?reddit.com)?(?:/?r/)?([-+_0-9A-Za-z]{2,21})", subreddit)
  80         if match:
  81             subreddit = match.group(1)
  82         else:
  83             flash("invalid subreddit", "error")
  84             return redirect(request.url, code=303)
  85         with sqlite3.connect(cf['global']['database']) as conn:
  86             c = conn.cursor()
  87             c.execute("""
  88                         INSERT OR IGNORE INTO subreddits (user, subreddit)
  89                         VALUES (?, ?)
  90             """, (token, subreddit))
  91
  92     elif 'unsubscribe' in request.form:
  93         subreddit = request.form.get("unsubscribe")
  94         with sqlite3.connect(cf['global']['database']) as conn:
  95             c = conn.cursor()
  96             c.execute("""
  97                         DELETE FROM subreddits
  98                         WHERE user = ? AND subreddit = ?
  99             """, (token, subreddit))
 100             # TODO: sql-error-handling, report success
 101
 102     else:
 103         flash("unsupported action", "error")
 104
 105     return redirect(request.url, code=303)
 106
 107 def get_subreddits(token):
 108     with sqlite3.connect(cf['global']['database']) as conn:
 109         c = conn.cursor()
 110         c.execute("""
 111           SELECT subreddit
 112             FROM subreddits
 113            WHERE user = ?
 114         ORDER BY subreddit COLLATE NOCASE ASC
 115         """, (token,))
 116         subreddits = [sr for (sr,) in c.fetchall()]
 117     return subreddits
 118
 119 @frontend.app_template_filter('trim3')
 120 def trim3(n):
 121         if round(n, 1) >= 10_000:
 122                 return "%.0fk" % (n/1000)
 123         elif n >= 1_000:
 124                 return "%.1fk" % (n/1000)
 125         else:
 126                 return "%d" % n