Check Twitch.tv live streams and videos

README.rst

chk-jtv-lives

Some time after 2012, my old script chk-jtv-lives.sh had stopped working, didn't try to fix it, and still don't. It's from my dotfiles/bin.

Instead, I wrote a new script in Python 3, chk-jtv-lives.py with Twitch.tv API v3 and Justin.tv API, It's no longer check username's favorites, a list of channel IDs and/or URLs has to be supplied.

My primary need isn't actually to check if a stream is live, but more often to know how long the channel has been streaming.

There is also a script called lst-ttv-videos.py for listing broadcast videos.

In August, 2014, Justin.tv was discontinued, I decided to keep "jtv" in script name.

Contents

• Screenshots
  • chk-jtv-lives.py
  • chk-jtv-lives.sh
• Usage
  • chk-jtv-lives.py
    • Options
    • Examples
    • exit status
  • lst-ttv-videos.py
    • Options
• Dependencies
• Copyright

Screenshots

chk-jtv-lives.py

chk-jtv-lives.sh

Just for historical record.

Usage

chk-jtv-lives.py

Checking Twitch.tv live streams:

chk-jtv-lives.py [OPTIONS] CHANNEL [CHANNEL ...]

Options

argument		description	default
-h	--help	show help message and exit
-m INT	--monitor INT	monitoring mode, run constantly	0 (m)
-1	--one	one stream per line	False
-g	--game	search by game, CHANNEL arguments would be treated as name of game	False
-l LIMIT	--limit LIMIT	maximum number of streams	25
-o OFFSET	--offset OFFSET	offset of first stream	0
-s SORT	--sort SORT	sorting key	(s)
-r REV	--reverse REV	sort in reverse order	(r)
CHANNEL		channel ID or URL, or game if --game is used

Notes

(m)

The interval INT of checking. 0 (default) means non-monitoring mode.

This feature monitors:

1. streams go online since last check,
2. streams go offline since last check, and
3. streams update game and/or status since last check.

Streams list is in same format as in non-monitoring mode.

It also displays:

1. live count at last check and
2. countdown timer in relative time format and date/time of next check.

(s)

None; viewers if --game is used.

(r)

Valid values are default, true, and false; default is true if --game is used; othewise, false.

Examples

$ chk-jtv-lives.py Day9tv dreamhack
$ chk-jtv-lives.py -1 http://www.twitch.tv/gsl sc2proleague
$ chk-jtv-lives.py --limit 5 -g StarCraft II: Heart of the Swarm
$ chk-jtv-lives.py -l5 -s viewers -r false g Counter-Strike: Global Offensive

exit status

0 (EX_OK):

When there is at least one live channel

69 (EX_UNAVAILABLE):

No live channels

lst-ttv-videos.py

Listing videos of a Twitch.tv channel:

lst-ttv-videos.py [OPTIONS] CHANNEL

Options

-h	--help	show help message and exit
-1	--one	one video per line	False
-l LIMIT	--limit LIMIT	maximum number of videos	10
-o OFFSET	--offset OFFSET	offset of first video	0
-b	--broadcast	only broadcasts	False
CHANNEL		channel ID or URL

Dependencies

• Timezone

  Timestamp is parsed and converted to local time zone using the following libraries:

  • dateutil
  • pytz

Copyright

The contents of this repository are written by Yu-Jie Lin and have been placed in Public Domain or via WTFPL Version 2, see COPYING.

chk-jtv-lives.py

#!/usr/bin/env python3
# Check Twitch.tv live streams
# Written by Yu-Jie Lin
# WTFPL Version 2, see COPYING

import argparse
import json
import os
import re
import sys
import time
from datetime import datetime
from textwrap import fill
from urllib import request
from urllib.parse import quote_plus

import pytz
from dateutil.parser import parse
from dateutil.tz import tzlocal

__description__ = 'Check Twitch.tv live streams'

# Twitch API GET /streams  http://git.io/Z2ZRqQ
API_BASE = 'https://api.twitch.tv/kraken/streams'

INDENT_SIZE = 4
INDENT = ' ' * INDENT_SIZE
FMT = (
  '\033[1;32m{name:{lens[name]}}\033[0m  '
  '\033[1;31m{viewers_str:>{lens[viewers_str]}}\033[0m  '
  '\033[1;33m{up_time_since:>{lens[up_time_since]}}\033[0m{PAD_C1}  '
  '{up_time}\n'

  '{url:{lens[url]}}{PAD_url}  '
  '\033[1;34m{game}\033[0m\n'

  '\n'

  '{wrapped_status}\n'
)
FMT_ONE = (
  'http://{url_one}/\033[1;32m{name_one:{lens[name]}}\033[0m '
  '\033[1;31m{viewers_str:>{lens[viewers_str]}}\033[0m '
  '\033[1;33m{up_time_since:>{lens[up_time_since]}}\033[0m '
  '{status_one}'
)
FMT_TIME = '{h:d}h {m:2d}m {s:2d}s'
FMT_TIME_ONE = '{h:d}:{m:02d}:{s:02d}'
RE_WHITESPACES = re.compile(r'\s{2,}')


def relative_time(d, FMT='{h:2d}h {m:2d}m {s:2d}s'):

  t = abs(d.seconds if hasattr(d, 'seconds') else int(d))
  s = t % 60
  m = t // 60 % 60
  h = t // 3600 + (d.days if hasattr(d, 'days') else 0) * 24

  return FMT.format(**locals())


def extract_stream(stream):

  channel = stream['channel']

  stream['name'] = channel['display_name']
  stream['status'] = channel['status'].strip()
  stream['url'] = channel['url']
  stream['viewers_str'] = '{:,}'.format(stream['viewers'])

  return stream['name'], stream


def main():

  parser = argparse.ArgumentParser(description=__description__)
  parser.add_argument('-m', '--monitor', default=0, type=int, metavar='MON',
                      help=('monitoring mode, run constantly '
                            '(Default %(default)s)'))
  parser.add_argument('-1', '--one', action='store_true',
                      help='one stream per line')
  parser.add_argument('-g', '--game', action='store_true',
                      help=('search by game, CHANNEL arguments would be '
                            'treated as name of game'))
  parser.add_argument('-l', '--limit', default=25, type=int,
                      help='maximum number of streams (Default: %(default)s)')
  parser.add_argument('-o', '--offset', default=0, type=int,
                      help='offset of first stream (Default: %(default)s)')
  parser.add_argument('-s', '--sort',
                      help='sorting key (Default: None; viewers if --game')
  parser.add_argument('-r', '--reverse', default='default',
                      choices=('default', 'true', 'false'),
                      help=('sort in reverse order '
                            '(Default: false; true if --game)'))
  parser.add_argument('channels', metavar='CHANNEL', nargs='+',
                      help='channel ID or URL, or game if --game is used')
  args = parser.parse_args()

  if args.game:
    URL = API_BASE + '?game=' + quote_plus(' '.join(args.channels))
    if args.sort is None:
      args.sort = 'viewers'
  else:
    m = map(lambda ch: ch.rsplit('/', 1)[-1].lower(), args.channels)
    URL = API_BASE + '?channel=' + ','.join(m)
  URL += '&limit=%d&offset=%d' % (args.limit, args.offset)

  args.reverse = (args.game if args.reverse == 'default' else
                  args.reverse == 'true')

  if not args.monitor:
    streams = get_live_streams(args, URL)
    if not streams:
      return os.EX_UNAVAILABLE
    show_streams(args, streams)
  else:
    try:
      monitor(args, URL)
    except KeyboardInterrupt:
      print()

  return os.EX_OK


def monitor(args, URL):

  old_streams = {}
  k_old_streams = set(old_streams.keys())

  while True:
    t = time.asctime(time.localtime())
    streams = get_live_streams(args, URL)
    k_streams = set(streams.keys())

    new_streams = {k: streams[k] for k in k_streams - k_old_streams}
    off_streams = {k: old_streams[k] for k in k_old_streams - k_streams}
    upd_streams = {
      key: streams[key]
      for key in k_streams & k_old_streams
      if streams[key]['status'] != old_streams[key]['status'] or
         streams[key]['game'] != old_streams[key]['game']
    }

    TPL_MSG = '\033[1;%%dm=== %%s at %s ===\033[0m' % t
    monitor_list_streams(args, new_streams, TPL_MSG % (32, 'Online'))
    monitor_list_streams(args, off_streams, TPL_MSG % (31, 'Offline'))
    monitor_list_streams(args, upd_streams, TPL_MSG % (33, 'Updated'))
    print()

    old_streams = streams
    k_old_streams = k_streams

    msg = ('\033[2K\033[1A\033[2K\033[1G'
           '%s: %d lives\n'
           '%s: next check in %s')
    c = time.time() + args.monitor
    n = time.asctime(time.localtime(c))
    lives = len(streams)
    while time.time() <= c:
      print(msg % (t, lives, n, relative_time(c - time.time())), end='')
      sys.stdout.flush()
      time.sleep(1)
    print('\033[2K\033[1A\033[2K\033[1G', end='')


def monitor_list_streams(args, streams, msg):

  if not streams:
    return

  print(msg, end='\n' if args.one else '\n\n')
  show_streams(args, streams)


def get_live_streams(args, URL):

  with request.urlopen(URL) as f:
    data = json.loads(f.read().decode('utf8'))
    streams = data['streams']
    streams = filter(lambda stream: 'url' in stream['channel'], streams)
    streams = dict(map(extract_stream, streams))

  for stream in streams.values():
    if not args.one:
      stream['wrapped_status'] = fill(
        text=stream['status'],
        width=72,
        initial_indent=INDENT,
        subsequent_indent=INDENT,
      )
    else:
      stream['name_one'] = stream['name'].replace(' ', '_')
      stream['status_one'] = RE_WHITESPACES.sub(' ', stream['status'])

    up_time = parse(stream['created_at'])
    up_time = up_time.astimezone(tzlocal())
    d = datetime.utcnow().replace(tzinfo=pytz.utc) - up_time
    d = relative_time(d, FMT=FMT_TIME_ONE if args.one else FMT_TIME)

    stream['up_time'] = up_time
    stream['up_time_since'] = d

  return streams


def show_streams(args, streams):

  get_len = lambda key: max(len(s[key]) for s in streams.values())
  keys = ('viewers_str', 'name', 'url', 'up_time_since')
  lens = dict((key, get_len(key)) for key in keys)
  if not args.one:
    lens['C1'] = lens['name'] + 2 + lens['viewers_str'] + 2
    lens['C1'] += lens['up_time_since']
    lens['LEFT_COLUMN'] = max(lens['url'], lens['C1'])

  streams = list(streams.values())
  if args.sort:
    streams.sort(key=lambda stream: stream[args.sort], reverse=args.reverse)

  for stream in streams:
    if args.one:
      print(FMT_ONE.format(
        lens=lens,
        url_one=stream['url'].split('/')[2].replace('www.', ''),
        **stream
      ))
    else:
      PAD_C1 = ' ' * (lens['LEFT_COLUMN'] - lens['C1'])
      PAD_url = ' ' * (lens['LEFT_COLUMN'] - lens['url'])
      print(FMT.format(lens=lens, PAD_C1=PAD_C1, PAD_url=PAD_url, **stream))


if __name__ == '__main__':
  sys.exit(main())

chk-jtv-lives.py.monitor.gif

chk-jtv-lives.py.png

chk-jtv-lives.sh

#!/bin/bash
# WTFPL License Version 2.0, see COPYING
#
# Checks Justin.tv user's favored channels live status
#
# Usage
#   chk-jtv-lives.sh [USERNAME]
#
# USERNAME default is $USER
#
# Requires
#   td.sh <http://code.google.com/p/yjl/source/browse/Bash/td.sh>
#   xsltproc
#   wget

XSLT="$(readlink "$0")"
XSLT="${XSLT%.sh}.xslt"

JTV_USERNAME="${1:-$USER}"
# Remove http://..../ part
JTV_USERNAME="${JTV_USERNAME##*/}"
# Favorites are whom this user follows
# http://apiwiki.justin.tv/mediawiki/index.php/User/favorites
LOGINS="$JTV_USERNAME$(wget -q "http://api.justin.tv/api/user/favorites/$JTV_USERNAME.xml?live=true" -O - |
sed -n '/login/ {s/ \+<login>\([^<]\+\)<\/login>/\1/;H} ; $ {x;s/\n/,/g;p}')"

i=0
API_URL="http://api.justin.tv/api/stream/list.xml?channel=$LOGINS"
wget -q "$API_URL" -O - |
xsltproc "$XSLT" - |
sed $'s/ANSI/\033/g' |
while read line; do
  if [[ "$line" =~ "%DATE%" ]]; then
    echo "NOFOLD$(td.sh $(($(date +%s) - $(TZ=US/Pacific date -d "${line:6}" +%s)))) ago"
  else
    echo "$line"
  fi
done |
fold -w 68 -s |
sed '/NOFOLD/ {s/NOFOLD//;p;d} ; s/^./    &/'

chk-jtv-lives.sh.png

chk-jtv-lives.xslt

<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text" disable-output-escaping="yes"/>

<xsl:template match="/">
  <xsl:for-each select="*/stream">
    <xsl:text>NOFOLDANSI[1;32m</xsl:text>
      <xsl:value-of select="channel/title"/>
    <xsl:text>ANSI[0m</xsl:text>

    <xsl:text> </xsl:text>
      <xsl:value-of select="channel_count"/> 
    <xsl:text> (</xsl:text>
      <xsl:value-of select="embed_count"/>
    <xsl:text> embeds)&#xA;</xsl:text>
    
    <xsl:text>NOFOLD</xsl:text>
    <xsl:value-of select="channel/channel_url"/>
    <xsl:text>&#xA;</xsl:text>

    <xsl:text>%DATE%</xsl:text>
    <xsl:value-of select="up_time"/>
    <xsl:text>&#xA;&#xA;</xsl:text>

    <xsl:text>ANSI[1;37m</xsl:text>
    <xsl:choose>
      <xsl:when test="channel/status != ''">
        <xsl:value-of select="channel/status"/>
      </xsl:when>
      <xsl:otherwise>
        <xsl:text>[no status]</xsl:text>
      </xsl:otherwise>
    </xsl:choose>
    <xsl:text>ANSI[0m</xsl:text>
    <xsl:text>&#xA;&#xA;</xsl:text>
  </xsl:for-each>
</xsl:template>

</xsl:stylesheet>

COPYING

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. You just DO WHAT THE FUCK YOU WANT TO.

lst-ttv-videos.py

#!/usr/bin/env python3
# List videos of a Twitch.tv channel
# Written by Yu-Jie Lin
# WTFPL Version 2, see COPYING

import argparse
import json
import re
from datetime import datetime
from textwrap import fill
from urllib import request

import pytz
from dateutil.parser import parse
from dateutil.tz import tzlocal

__description__ = 'List videos of a Twitch.tv channel'

INDENT_SIZE = 4
INDENT = ' ' * INDENT_SIZE
FMT = (
  '\033[1;32m{name:{lens[name]}}\033[0m  '
  '\033[1;31m{views_str:>{lens[views_str]}}\033[0m  '
  '\033[1;33m{readable_length:>{lens[readable_length]}}\033[0m  '
  '\033[1;35m{recorded_at_since:>{lens[recorded_at_since]}}\033[0m{PAD_C1}  '
  '{recorded_at}\n'

  '{url:{lens[url]}}{PAD_url}  '
  '\033[1;34m{game}\033[0m\n'

  '\n'

  '{wrapped_title}\n'
)
FMT_ONE = (
  'http://{u[2]}/\033[1;32m{name:{lens[name]}}\033[0m/{u[4]}/{u[5]} '
  '\033[1;31m{views_str:>{lens[views_str]}}\033[0m '
  '\033[1;33m{readable_length:>{lens[readable_length]}}\033[0m '
  '\033[1;35m{recorded_at_since:>{lens[recorded_at_since]}}\033[0m '
  '{title_out}'
)
RE_WHITESPACES = re.compile(r'\s{2,}')


def relative_time(d, FMT='{d:d}d {h:2d}h {m:2d}m {s:2d}s'):

  t = abs(d.seconds)
  s = t % 60
  m = t // 60 % 60
  h = t // 3600
  d = d.days

  return FMT.format(**locals())


def readable_length(t, FMT='{h:d}h {m:2d}m {s:2d}s'):

  t = abs(t)
  s = t % 60
  m = t // 60 % 60
  h = t // 3600

  return FMT.format(**locals())


def main():

  parser = argparse.ArgumentParser(description=__description__)
  parser.add_argument('-l', '--limit', default=10,
                      help='maximum number of videos (Default: %(default)s)')
  parser.add_argument('-o', '--offset', default=0,
                      help='offset of first video (Default: %(default)s)')
  parser.add_argument('-b', '--broadcasts', default='false',
                      choices=('true', 'false'),
                      help='only broadcasts (Default: %(default)s)')
  parser.add_argument('-1', '--one', action='store_true',
                      help='one video per line')
  parser.add_argument('channel', metavar='CHANNEL', help='channel ID or URL')
  args = parser.parse_args()

  channel = args.channel.rsplit('/', 1)[-1].lower()

  # Twitch API: GET /channels/:channel/videos - http://git.io/Qjp4Tw
  _args = vars(args)
  _args['channel'] = channel
  URL = (
    'https://api.twitch.tv/kraken/channels/{channel}/videos?'
    'limit={limit}&'
    'offset={offset}&'
    'broadcasts={broadcasts}'
  ).format(**_args)

  with request.urlopen(URL) as f:
    videos = json.loads(f.read().decode('utf8'))['videos']

  for video in videos:
    channel = video['channel']
    video['title'] = RE_WHITESPACES.sub(' ', video['title'].strip())
    description = RE_WHITESPACES.sub(' ', (video['description'] or '').strip())
    video['description'] = description
    video['title_out'] = (
      '%s: %s' % (video['title'], description)
      if description else video['title']
    )
    video['login'] = channel['name']
    video['name'] = channel['display_name']
    video['views_str'] = '{:,}'.format(video['views'])

    if not args.one:
      video['wrapped_title'] = fill(
        text='%s' % video['title_out'],
        width=72,
        initial_indent=INDENT,
        subsequent_indent=INDENT,
      )

    recorded_at = parse(video['recorded_at'])
    recorded_at = recorded_at.astimezone(tzlocal())
    d = datetime.utcnow().replace(tzinfo=pytz.utc) - recorded_at
    video['recorded_at'] = recorded_at
    if args.one:
      d = relative_time(d, FMT='{d:d}d{h:02d}:{m:02d}:{s:02d}')
      hr_len = readable_length(video['length'], FMT='{h:d}:{m:02d}:{s:02d}')
    else:
      d = relative_time(d)
      hr_len = readable_length(video['length'])
    video['recorded_at_since'] = d
    video['readable_length'] = hr_len

  get_len = lambda key: max(len(v[key]) for v in videos)
  lens = {
    'name': get_len('name'),
    'readable_length': get_len('readable_length'),
    'recorded_at_since': get_len('recorded_at_since'),
    'url': get_len('url'),
    'views_str': get_len('views_str'),
  }
  if not args.one:
    lens['C1'] = (
      lens['name'] + 2 +
      lens['views_str'] + 2 +
      lens['readable_length'] + 2 +
      lens['recorded_at_since']
    )
    lens['LEFT_COLUMN'] = max(lens['url'], lens['C1'])

  for video in videos:
    if args.one:
      print(FMT_ONE.format(lens=lens, u=video['url'].split('/'), **video))
    else:
      print(FMT.format(
        lens=lens,
        PAD_C1=' ' * (lens['LEFT_COLUMN'] - lens['C1']),
        PAD_url=' ' * (lens['LEFT_COLUMN'] - lens['url']),
        **video
      ))


if __name__ == '__main__':
  main()

Sorry, you'll have to find someone to do it. Please do share a link if you get a solution.