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