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     all_subreddits = get_subreddits(token)
  22     subreddits = [subreddit] if subreddit else all_subreddits
  23
  24     try:
  25         videos, before, after = fetch_reddit(subreddits, [], count, before, after)
  26     except RedditException as e:
  27         return f"error retrieving reddit data: {e}", 502 # TODO: better
  28
  29     # TODO: for /feed/reddit: pin/hide videos
  30
  31     title = f"/r/{subreddit}" if subreddit else "my subreddits"
  32     return render_template('reddit.html.j2', title=title, rows=videos,
  33         subreddits=all_subreddits, before=before, after=after, count=count)
  34
  35 @frontend.route('/manage/subreddits')
  36 # disabled for guest user: @login_required
  37 def subscription_manager():
  38     token = getattr(current_user, 'token', 'guest')
  39     subreddits = get_subreddits(token)
  40     return render_template('subreddit_manager.html.j2', subreddits=subreddits)
  41
  42 @frontend.route('/feed/subreddits', methods=['POST'])
  43 @login_required
  44 def feed_post():
  45     token = current_user.token
  46
  47     action = next(request.form.keys(), None)
  48     if action in ['pin', 'unpin', 'hide']:
  49         post_id = request.form.get(action)
  50         display = {
  51             'pin': 'pinned',
  52             'unpin': None,
  53             'hide': 'hidden',
  54         }[action]
  55         with sqlite3.connect(cf['global']['database']) as conn:
  56             c = conn.cursor()
  57             c.execute("""
  58                         INSERT OR REPLACE INTO flags (user, post_id, display)
  59                         VALUES (?, ?, ?)
  60                 """, (token, post_id, display))
  61     else:
  62         flash("unsupported action", "error")
  63     return redirect(request.url, code=303)
  64
  65 @frontend.route('/manage/subreddits', methods=['POST'])
  66 @login_required
  67 def manage_subscriptions():
  68     token = current_user.token
  69     if 'subscribe' in request.form:
  70         subreddit = request.form.get("subscribe")
  71         match = re.search(r"(?:(?:https?://)?(?:old.|www.|\w\w.)?reddit.com)?(?:/?r/)?([-+_0-9A-Za-z]{2,21})", subreddit)
  72         if match:
  73             subreddit = match.group(1)
  74         else:
  75             flash("invalid subreddit", "error")
  76             return redirect(request.url, code=303)
  77         with sqlite3.connect(cf['global']['database']) as conn:
  78             c = conn.cursor()
  79             c.execute("""
  80                         INSERT OR IGNORE INTO subreddits (user, subreddit)
  81                         VALUES (?, ?)
  82             """, (token, subreddit))
  83
  84     elif 'unsubscribe' in request.form:
  85         subreddit = request.form.get("unsubscribe")
  86         with sqlite3.connect(cf['global']['database']) as conn:
  87             c = conn.cursor()
  88             c.execute("""
  89                         DELETE FROM subreddits
  90                         WHERE user = ? AND subreddit = ?
  91             """, (token, subreddit))
  92             # TODO: sql-error-handling, report success
  93
  94     else:
  95         flash("unsupported action", "error")
  96
  97     return redirect(request.url, code=303)
  98
  99 def get_subreddits(token):
 100     with sqlite3.connect(cf['global']['database']) as conn:
 101         c = conn.cursor()
 102         c.execute("""
 103           SELECT subreddit
 104             FROM subreddits
 105            WHERE user = ?
 106         ORDER BY subreddit COLLATE NOCASE ASC
 107         """, (token,))
 108         subreddits = [sr for (sr,) in c.fetchall()]
 109     return subreddits
 110
 111 @frontend.app_template_filter('trim3')
 112 def trim3(n):
 113         if round(n, 1) >= 10_000:
 114                 return "%.0fk" % (n/1000)
 115         elif n >= 1_000:
 116                 return "%.1fk" % (n/1000)
 117         else:
 118                 return "%d" % n