<link>http://people.skolelinux.org/pere/blog/</link>
<atom:link href="http://people.skolelinux.org/pere/blog/index.rss" rel="self" type="application/rss+xml" />
+ <item>
+ <title>CasparCG Server for TV broadcast playout in Debian</title>
+ <link>http://people.skolelinux.org/pere/blog/CasparCG_Server_for_TV_broadcast_playout_in_Debian.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/CasparCG_Server_for_TV_broadcast_playout_in_Debian.html</guid>
+ <pubDate>Tue, 15 Jan 2019 00:10:00 +0100</pubDate>
+ <description><p>The layered video playout server created by Sveriges Television,
+<a href="https://casparcg.com/">CasparCG Server</a>, entered Debian
+today. This completes many months of work to get the source ready to
+go into Debian. The first upload to the Debian NEW queue happened a
+month ago, but the work upstream to prepare it for Debian started more
+than two and a half month ago. So far
+<a href="https://tracker.debian.org/pkg/casparcg-server">the
+casparcg-server package</a> is only available for amd64, but I hope
+this can be improved. The package is in contrib because it depend on
+the <a href="https://tracker.debian.org/pkg/fdk-aac">non-free fdk-aac
+library</a>. The Debian package lack support for streaming web pages
+because Debian is missing CEF, Chromium Embedded Framework. CEF is
+wanted by several packages in Debian. But because the Chromium source
+is <a href="https://bugs.debian.org/893448">not available as a build
+dependency</a>, it is not yet possible to upload CEF to Debian. I
+hope this will change in the future.</p>
+
+<p>The reason I got involved is that
+<a href="https://frikanalen.no/">the Norwegian open channel
+Frikanalen</a> is starting to use CasparCG for our HD playout, and I
+would like to have all the free software tools we use to run the TV
+channel available as packages from the Debian project. The last
+remaining piece in the puzzle is Open Broadcast Encoder, but it depend
+on quite a lot of patched libraries which would have to be included in
+Debian first.</p>
+</description>
+ </item>
+
+ <item>
+ <title>Learn to program with Minetest on Debian</title>
+ <link>http://people.skolelinux.org/pere/blog/Learn_to_program_with_Minetest_on_Debian.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Learn_to_program_with_Minetest_on_Debian.html</guid>
+ <pubDate>Sat, 15 Dec 2018 15:30:00 +0100</pubDate>
+ <description><p>A fun way to learn how to program
+<a href="https://www.python.org/">Python</a> is to follow the
+instructions in the book
+"<a href="https://nostarch.com/programwithminecraft">Learn to program
+with Minecraft</a>", which introduces programming in Python to people
+who like to play with Minecraft. The book uses a Python library to
+talk to a TCP/IP socket with an API accepting build instructions and
+providing information about the current players in a Minecraft world.
+The TCP/IP API was first created for the Minecraft implementation for
+Raspberry Pi, and has since been ported to some server versions of
+Minecraft. The book contain recipes for those using Windows, MacOSX
+and Raspian. But a little known fact is that you can follow the same
+recipes using the free software construction game
+<a href="https://minetest.net/">Minetest</a>.</p>
+
+<p>There is <a href="https://github.com/sprintingkiwi/pycraft_mod">a
+Minetest module implementing the same API</a>, making it possible to
+use the Python programs coded to talk to Minecraft with Minetest too.
+I
+<a href="https://ftp-master.debian.org/new/minetest-mod-pycraft_0.20%2Bgit20180331.0376a0a%2Bdfsg-1.html">uploaded
+this module</a> to Debian two weeks ago, and as soon as it clears the
+FTP masters NEW queue, learning to program Python with Minetest on
+Debian will be a simple 'apt install' away. The Debian package is
+maintained as part of the Debian Games team, and
+<a href="https://salsa.debian.org/games-team/unfinished/minetest-mod-pycraft">the
+packaging rules</a> are currently located under 'unfinished' on
+Salsa.</p>
+
+<p>You will most likely need to install several of the Minetest
+modules in Debian for the examples included with the library to work
+well, as there are several blocks used by the example scripts that are
+provided via modules in Minetest. Without the required blocks, a
+simple stone block is used instead. My initial testing with a analog
+clock did not get gold arms as instructed in the python library, but
+instead used stone arms.</p>
+
+<p>I tried to find a way to add the API to the desktop version of
+Minecraft, but were unable to find any working recipes. The
+<a href="https://www.epiphanydigest.com/tag/minecraft-python-api/">recipes</a>
+I <a href="https://github.com/kbsriram/mcpiapi">found</a> are only
+working with a standalone Minecraft server setup. Are there any
+options to use with the normal desktop version?</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+</description>
+ </item>
+
+ <item>
+ <title>Non-blocking bittorrent plugin for vlc</title>
+ <link>http://people.skolelinux.org/pere/blog/Non_blocking_bittorrent_plugin_for_vlc.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Non_blocking_bittorrent_plugin_for_vlc.html</guid>
+ <pubDate>Wed, 12 Dec 2018 07:20:00 +0100</pubDate>
+ <description><p>A few hours ago, a new and improved version (2.4) of
+<a href="https://tracker.debian.org/pkg/vlc-plugin-bittorrent">the VLC
+bittorrent plugin</a> was uploaded to Debian. This new version
+include a complete rewrite of the bittorrent related code, which seem
+to make the plugin non-blocking. This mean you can actually exit VLC
+even when the plugin seem to be unable to get the bittorrent streaming
+started. The new version also include support for filtering playlist
+by file extension using command line options, if you want to avoid
+processing audio, video or images. The package is currently in Debian
+unstable, but should be available in Debian testing in two days. To
+test it, simply install it like this:</p>
+
+<p><pre>
+apt install vlc-plugin-bittorrent
+</pre></p>
+
+<p>After it is installed, you can try to use it to play a file
+downloaded live via bittorrent like this:
+
+<p><pre>
+vlc https://archive.org/download/Glass_201703/Glass_201703_archive.torrent
+</pre></p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+</description>
+ </item>
+
+ <item>
+ <title>Retten til kontant betaling er en rettighet som må brukes for å beholdes</title>
+ <link>http://people.skolelinux.org/pere/blog/Retten_til_kontant_betaling_er_en_rettighet_som_m__brukes_for___beholdes.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Retten_til_kontant_betaling_er_en_rettighet_som_m__brukes_for___beholdes.html</guid>
+ <pubDate>Tue, 11 Dec 2018 10:00:00 +0100</pubDate>
+ <description><p><a href="https://www.fn.no/Om-FN/Avtaler/Menneskerettigheter/FNs-verdenserklaering-om-menneskerettigheter">FNs
+menneskerettighetserklæring</a> artikkel 13 første punkt lyder som
+følger:</p>
+
+<p><blockquote>
+Enhver har rett til å bevege seg fritt og til fritt å velge
+oppholdssted innenfor en stats grenser.
+</blockquote></p>
+
+<p>Det er altså en menneskerett å kunne bevege seg fritt i landet.
+For å bevege seg fritt i landet, så må en kunne bevege seg uten å bli
+sporet. Det vil i dagens samfunn innebære å bevege seg uten å legge
+igjen digitale spor og uten å være radiomerket. Hvis en vet at ens
+bevegelser, hvor en befinner seg når, og hvem som befinner seg i
+nærheten, blir samlet inn og gjort tilgjengelig for fremmede, det være
+seg myndighetene eller private organisasjoner, så kan en ikke lenger
+bevege seg fritt. Dette gjør at det er en forutsetning for å ha glede
+av retten til å bevege seg fritt i landet at en motstår fristelsen til
+å legge igjen digitale spor når en betaler for seg. Rettigheter som
+ikke blir brukt, blir fjernet. Den eneste måten i dag å unngå å legge
+igjen digitale spor når en betaler for seg, er å betale med kontanter,
+samt takke nei til å legge igjen navn og adresse (slik f.eks. Elkjøp
+ber om &mdash; jeg sier de kan legge inn «anonym anonym» når
+datasystemet deres trenger et navn). Personlig anbefaler jeg å
+konsekvent bruke kontant betaling når man beveger seg rundt, for å
+bidra til forsvaret av menneskerettighetene i Norge. Kanskje noe også
+for deg? Merk at det ikke er tilstrekkelig for å unngå sporing å
+betale med kontanter, men det er et lite steg i riktig retning.</p>
+
+<p>Det er flere andre argumenter i tillegg til
+menneskerettighetsargumentet for å bruke kontanter. I går hadde
+Dagbladet en utmerket kommentar av sin journalist John Olav Egeland om
+hvilket
+<a href="https://www.dagbladet.no/kultur/kontantlost-diktatur/70543434">kontantløst
+diktatur</a> som venter oss hvis mange nok slutter å insistere på å
+betale med kontanter. Jeg anbefaler deg å lese den.</p>
+
+<p>Som vanlig, hvis du bruker Bitcoin og ønsker å vise din støtte til
+det jeg driver med, setter jeg pris på om du sender Bitcoin-donasjoner
+til min adresse
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.
+Merk, betaling med bitcoin er ikke anonymt. :)</p>
+</description>
+ </item>
+
+ <item>
+ <title>Why is your site not using Content Security Policy / CSP?</title>
+ <link>http://people.skolelinux.org/pere/blog/Why_is_your_site_not_using_Content_Security_Policy___CSP_.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Why_is_your_site_not_using_Content_Security_Policy___CSP_.html</guid>
+ <pubDate>Sun, 9 Dec 2018 15:00:00 +0100</pubDate>
+ <description><p>Yesterday, I had the pleasure of watching on Frikanalen the OWASP
+talk by Scott Helme titled
+"<a href="https://frikanalen.no/video/626080/">What We’ve Learned From
+Billions of Security Reports</a>". I had not heard of the
+<a href="https://en.wikipedia.org/wiki/Content_Security_Policy">Content
+Security Policy standard</a> nor its ability to "call home" when a
+browser detect a policy breach (I do not follow web page design
+development much these days), and found the talk very illuminating.</p>
+
+<p>The mechanism allow a web site owner to use HTTP headers to tell
+visitors web browser which sources (internal and external) are allowed to
+be used on the web site. Thus it become possible to enforce a "only
+local content" policy despite web designers urge to fetch programs
+from random sites on the Internet, like the one
+<a href="https://securityaffairs.co/wordpress/68966/hacking/browsealoud-plugin-hack.html">enabling
+the attack</a> reported by Scott Helme earlier this year.</p>
+
+<p>Using CSP seem like an obvious thing for a site admin to implement
+to take some control over the information leak that occur when
+external sources are used to render web pages, it is a mystery more
+sites are not using CSP? It is being
+<a href="https://www.w3.org/TR/CSP/">standardized under W3C</a> these
+days, and is supposed by most web browsers</p>
+
+<p>I managed to find <a href="https://github.com/mozilla/django-csp">a
+Django middleware for implementing CSP</a> and was happy to discover
+it was already in Debian. I plan to use it to add CSP support to the
+Frikanalen web site soon.</p>
+
+<p>As usual, if you use Bitcoin and want to show your support of my
+activities, please send Bitcoin donations to my address
+<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
+</description>
+ </item>
+
<item>
<title>New and improved Frikanalen Kodi addon version 0.0.3</title>
<link>http://people.skolelinux.org/pere/blog/New_and_improved_Frikanalen_Kodi_addon_version_0_0_3.html</link>
to the CasparCG server when it is time to start a new program.</p>
<p>By now, you are probably wondering what kind of content is being
-played on the video. These days, it is filled with technical
+played on the channel. These days, it is filled with technical
presentations like those from <a href="https://www.nuug.no/">NUUG</a>,
<a href="https://www.debconf.org/">Debconf</a>, Makercon, and TED,
but there are also some periods with
(<a href="https://lists.nuug.no/mailman/listinfo/nikita-noark">nikita-noark
mailing list</a>).</p>
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>Fetching trusted timestamps using the rfc3161ng python module</title>
- <link>http://people.skolelinux.org/pere/blog/Fetching_trusted_timestamps_using_the_rfc3161ng_python_module.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Fetching_trusted_timestamps_using_the_rfc3161ng_python_module.html</guid>
- <pubDate>Mon, 8 Oct 2018 12:30:00 +0200</pubDate>
- <description><p>I have earlier covered the basics of trusted timestamping using the
-'openssl ts' client. See blog post for
-<a href="http://people.skolelinux.org/pere/blog/Public_Trusted_Timestamping_services_for_everyone.html">2014</a>,
-<a href="http://people.skolelinux.org/pere/blog/syslog_trusted_timestamp___chain_of_trusted_timestamps_for_your_syslog.html">2016</a>
-and
-<a href="http://people.skolelinux.org/pere/blog/Idea_for_storing_trusted_timestamps_in_a_Noark_5_archive.html">2017</a>
-for those stories. But some times I want to integrate the timestamping
-in other code, and recently I needed to integrate it into Python.
-After searching a bit, I found
-<a href="https://dev.entrouvert.org/projects/python-rfc3161">the
-rfc3161 library</a> which seemed like a good fit, but I soon
-discovered it only worked for python version 2, and I needed something
-that work with python version 3. Luckily I next came across
-<a href="https://github.com/trbs/rfc3161ng/">the rfc3161ng library</a>,
-a fork of the original rfc3161 library. Not only is it working with
-python 3, it have fixed a few of the bugs in the original library, and
-it has an active maintainer. I decided to wrap it up and make it
-<a href="https://tracker.debian.org/pkg/python-rfc3161ng">available in
-Debian</a>, and a few days ago it entered Debian unstable and testing.</p>
-
-<p>Using the library is fairly straight forward. The only slightly
-problematic step is to fetch the required certificates to verify the
-timestamp. For some services it is straight forward, while for others
-I have not yet figured out how to do it. Here is a small standalone
-code example based on of the integration tests in the library code:</p>
-
-<pre>
-#!/usr/bin/python3
-
-"""
-
-Python 3 script demonstrating how to use the rfc3161ng module to
-get trusted timestamps.
-
-The license of this code is the same as the license of the rfc3161ng
-library, ie MIT/BSD.
-
-"""
-
-import os
-import pyasn1.codec.der
-import rfc3161ng
-import subprocess
-import tempfile
-import urllib.request
-
-def store(f, data):
- f.write(data)
- f.flush()
- f.seek(0)
-
-def fetch(url, f=None):
- response = urllib.request.urlopen(url)
- data = response.read()
- if f:
- store(f, data)
- return data
-
-def main():
- with tempfile.NamedTemporaryFile() as cert_f,\
- tempfile.NamedTemporaryFile() as ca_f,\
- tempfile.NamedTemporaryFile() as msg_f,\
- tempfile.NamedTemporaryFile() as tsr_f:
-
- # First fetch certificates used by service
- certificate_data = fetch('https://freetsa.org/files/tsa.crt', cert_f)
- ca_data_data = fetch('https://freetsa.org/files/cacert.pem', ca_f)
-
- # Then timestamp the message
- timestamper = \
- rfc3161ng.RemoteTimestamper('http://freetsa.org/tsr',
- certificate=certificate_data)
- data = b"Python forever!\n"
- tsr = timestamper(data=data, return_tsr=True)
-
- # Finally, convert message and response to something 'openssl ts' can verify
- store(msg_f, data)
- store(tsr_f, pyasn1.codec.der.encoder.encode(tsr))
- args = ["openssl", "ts", "-verify",
- "-data", msg_f.name,
- "-in", tsr_f.name,
- "-CAfile", ca_f.name,
- "-untrusted", cert_f.name]
- subprocess.check_call(args)
-
-if '__main__' == __name__:
- main()
-</pre>
-
-<p>The code fetches the required certificates, store them as temporary
-files, timestamp a simple message, store the message and timestamp to
-disk and ask 'openssl ts' to verify the timestamp. A timestamp is
-around 1.5 kiB in size, and should be fairly easy to store for future
-use.</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>Automatic Google Drive sync using grive in Debian</title>
- <link>http://people.skolelinux.org/pere/blog/Automatic_Google_Drive_sync_using_grive_in_Debian.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Automatic_Google_Drive_sync_using_grive_in_Debian.html</guid>
- <pubDate>Thu, 4 Oct 2018 15:20:00 +0200</pubDate>
- <description><p>A few days, I rescued a Windows victim over to Debian. To try to
-rescue the remains, I helped set up automatic sync with Google Drive.
-I did not find any sensible Debian package handling this
-automatically, so I rebuild the grive2 source from
-<a href="http://www.webupd8.org/">the Ubuntu UPD8 PPA</a> to do the
-task and added a autostart desktop entry and a small shell script to
-run in the background while the user is logged in to do the sync.
-Here is a sketch of the setup for future reference.</p>
-
-<p>I first created <tt>~/googledrive</tt>, entered the directory and
-ran '<tt>grive -a</tt>' to authenticate the machine/user. Next, I
-created a autostart hook in <tt>~/.config/autostart/grive.desktop</tt>
-to start the sync when the user log in:</p>
-
-<p><blockquote><pre>
-[Desktop Entry]
-Name=Google drive autosync
-Type=Application
-Exec=/home/user/bin/grive-sync
-</pre></blockquote></p>
-
-<p>Finally, I wrote the <tt>~/bin/grive-sync</tt> script to sync
-~/googledrive/ with the files in Google Drive.</p>
-
-<p><blockquote><pre>
-#!/bin/sh
-set -e
-cd ~/
-cleanup() {
- if [ "$syncpid" ] ; then
- kill $syncpid
- fi
-}
-trap cleanup EXIT INT QUIT
-/usr/lib/grive/grive-sync.sh listen googledrive 2>&1 | sed "s%^%$0:%" &
-syncpdi=$!
-while true; do
- if ! xhost >/dev/null 2>&1 ; then
- echo "no DISPLAY, exiting as the user probably logged out"
- exit 1
- fi
- if [ ! -e /run/user/1000/grive-sync.sh_googledrive ] ; then
- /usr/lib/grive/grive-sync.sh sync googledrive
- fi
- sleep 300
-done 2>&1 | sed "s%^%$0:%"
-</pre></blockquote></p>
-
-<p>Feel free to use the setup if you want. It can be assumed to be
-GNU GPL v2 licensed (or any later version, at your leisure), but I
-doubt this code is possible to claim copyright on.</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>Valutakrambod - A python and bitcoin love story</title>
- <link>http://people.skolelinux.org/pere/blog/Valutakrambod___A_python_and_bitcoin_love_story.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Valutakrambod___A_python_and_bitcoin_love_story.html</guid>
- <pubDate>Sat, 29 Sep 2018 22:20:00 +0200</pubDate>
- <description><p>It would come as no surprise to anyone that I am interested in
-bitcoins and virtual currencies. I've been keeping an eye on virtual
-currencies for many years, and it is part of the reason a few months
-ago, I started writing a python library for collecting currency
-exchange rates and trade on virtual currency exchanges. I decided to
-name the end result valutakrambod, which perhaps can be translated to
-small currency shop.</p>
-
-<p>The library uses the tornado python library to handle HTTP and
-websocket connections, and provide a asynchronous system for
-connecting to and tracking several services. The code is available
-from
-<a href="http://github.com/petterreinholdtsen/valutakrambod">github</a>.</p>
-
-</p>There are two example clients of the library. One is very simple and
-list every updated buy/sell price received from the various services.
-This code is started by running bin/btc-rates and call the client code
-in valutakrambod/client.py. The simple client look like this:</p>
-
-<p><blockquote><pre>
-import functools
-import tornado.ioloop
-import valutakrambod
-class SimpleClient(object):
- def __init__(self):
- self.services = []
- self.streams = []
- pass
- def newdata(self, service, pair, changed):
- print("%-15s %s-%s: %8.3f %8.3f" % (
- service.servicename(),
- pair[0],
- pair[1],
- service.rates[pair]['ask'],
- service.rates[pair]['bid'])
- )
- async def refresh(self, service):
- await service.fetchRates(service.wantedpairs)
- def run(self):
- self.ioloop = tornado.ioloop.IOLoop.current()
- self.services = valutakrambod.service.knownServices()
- for e in self.services:
- service = e()
- service.subscribe(self.newdata)
- stream = service.websocket()
- if stream:
- self.streams.append(stream)
- else:
- # Fetch information from non-streaming services immediately
- self.ioloop.call_later(len(self.services),
- functools.partial(self.refresh, service))
- # as well as regularly
- service.periodicUpdate(60)
- for stream in self.streams:
- stream.connect()
- try:
- self.ioloop.start()
- except KeyboardInterrupt:
- print("Interrupted by keyboard, closing all connections.")
- pass
- for stream in self.streams:
- stream.close()
-</pre></blockquote></p>
-
-<p>The library client loops over all known "public" services,
-initialises it, subscribes to any updates from the service, checks and
-activates websocket streaming if the service provide it, and if no
-streaming is supported, fetches information from the service and sets
-up a periodic update every 60 seconds. The output from this client
-can look like this:</p>
-
-<p><blockquote><pre>
-Bl3p BTC-EUR: 5687.110 5653.690
-Bl3p BTC-EUR: 5687.110 5653.690
-Bl3p BTC-EUR: 5687.110 5653.690
-Hitbtc BTC-USD: 6594.560 6593.690
-Hitbtc BTC-USD: 6594.560 6593.690
-Bl3p BTC-EUR: 5687.110 5653.690
-Hitbtc BTC-USD: 6594.570 6593.690
-Bitstamp EUR-USD: 1.159 1.154
-Hitbtc BTC-USD: 6594.570 6593.690
-Hitbtc BTC-USD: 6594.580 6593.690
-Hitbtc BTC-USD: 6594.580 6593.690
-Hitbtc BTC-USD: 6594.580 6593.690
-Bl3p BTC-EUR: 5687.110 5653.690
-Paymium BTC-EUR: 5680.000 5620.240
-</pre></blockquote></p>
-
-<p>The exchange order book is tracked in addition to the best buy/sell
-price, for those that need to know the details.</p>
-
-<p>The other example client is focusing on providing a curses view
-with updated buy/sell prices as soon as they are received from the
-services. This code is located in bin/btc-rates-curses and activated
-by using the '-c' argument. Without the argument the "curses" output
-is printed without using curses, which is useful for debugging. The
-curses view look like this:</p>
-
-<p><blockquote><pre>
- Name Pair Bid Ask Spr Ftcd Age
- BitcoinsNorway BTCEUR 5591.8400 5711.0800 2.1% 16 nan 60
- Bitfinex BTCEUR 5671.0000 5671.2000 0.0% 16 22 59
- Bitmynt BTCEUR 5580.8000 5807.5200 3.9% 16 41 60
- Bitpay BTCEUR 5663.2700 nan nan% 15 nan 60
- Bitstamp BTCEUR 5664.8400 5676.5300 0.2% 0 1 1
- Bl3p BTCEUR 5653.6900 5684.9400 0.5% 0 nan 19
- Coinbase BTCEUR 5600.8200 5714.9000 2.0% 15 nan nan
- Kraken BTCEUR 5670.1000 5670.2000 0.0% 14 17 60
- Paymium BTCEUR 5620.0600 5680.0000 1.1% 1 7515 nan
- BitcoinsNorway BTCNOK 52898.9700 54034.6100 2.1% 16 nan 60
- Bitmynt BTCNOK 52960.3200 54031.1900 2.0% 16 41 60
- Bitpay BTCNOK 53477.7833 nan nan% 16 nan 60
- Coinbase BTCNOK 52990.3500 54063.0600 2.0% 15 nan nan
- MiraiEx BTCNOK 52856.5300 54100.6000 2.3% 16 nan nan
- BitcoinsNorway BTCUSD 6495.5300 6631.5400 2.1% 16 nan 60
- Bitfinex BTCUSD 6590.6000 6590.7000 0.0% 16 23 57
- Bitpay BTCUSD 6564.1300 nan nan% 15 nan 60
- Bitstamp BTCUSD 6561.1400 6565.6200 0.1% 0 2 1
- Coinbase BTCUSD 6504.0600 6635.9700 2.0% 14 nan 117
- Gemini BTCUSD 6567.1300 6573.0700 0.1% 16 89 nan
- Hitbtc+BTCUSD 6592.6200 6594.2100 0.0% 0 0 0
- Kraken BTCUSD 6565.2000 6570.9000 0.1% 15 17 58
- Exchangerates EURNOK 9.4665 9.4665 0.0% 16 107789 nan
- Norgesbank EURNOK 9.4665 9.4665 0.0% 16 107789 nan
- Bitstamp EURUSD 1.1537 1.1593 0.5% 4 5 1
- Exchangerates EURUSD 1.1576 1.1576 0.0% 16 107789 nan
- BitcoinsNorway LTCEUR 1.0000 49.0000 98.0% 16 nan nan
- BitcoinsNorway LTCNOK 492.4800 503.7500 2.2% 16 nan 60
- BitcoinsNorway LTCUSD 1.0221 49.0000 97.9% 15 nan nan
- Norgesbank USDNOK 8.1777 8.1777 0.0% 16 107789 nan
-</pre></blockquote></p>
-
-<p>The code for this client is too complex for a simple blog post, so
-you will have to check out the git repository to figure out how it
-work. What I can tell is how the three last numbers on each line
-should be interpreted. The first is how many seconds ago information
-was received from the service. The second is how long ago, according
-to the service, the provided information was updated. The last is an
-estimate on how often the buy/sell values change.</p>
-
-<p>If you find this library useful, or would like to improve it, I
-would love to hear from you. Note that for some of the services I've
-implemented a trading API. It might be the topic of a future blog
-post.</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>VLC in Debian now can do bittorrent streaming</title>
- <link>http://people.skolelinux.org/pere/blog/VLC_in_Debian_now_can_do_bittorrent_streaming.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/VLC_in_Debian_now_can_do_bittorrent_streaming.html</guid>
- <pubDate>Mon, 24 Sep 2018 21:20:00 +0200</pubDate>
- <description><p>Back in February, I got curious to see
-<a href="http://people.skolelinux.org/pere/blog/Using_VLC_to_stream_bittorrent_sources.html">if
-VLC now supported Bittorrent streaming</a>. It did not, despite the
-fact that the idea and code to handle such streaming had been floating
-around for years. I did however find
-<a href="https://github.com/johang/vlc-bittorrent">a standalone plugin
-for VLC</a> to do it, and half a year later I decided to wrap up the
-plugin and get it into Debian. I uploaded it to NEW a few days ago,
-and am very happy to report that it
-<a href="https://tracker.debian.org/pkg/vlc-plugin-bittorrent">entered
-Debian</a> a few hours ago, and should be available in Debian/Unstable
-tomorrow, and Debian/Testing in a few days.</p>
-
-<p>With the vlc-plugin-bittorrent package installed you should be able
-to stream videos using a simple call to</p>
-
-<p><blockquote><pre>
-vlc https://archive.org/download/TheGoat/TheGoat_archive.torrent
-</pre></blockquote></p>
-
-</p>It can handle magnet links too. Now if only native vlc had
-bittorrent support. Then a lot more would be helping each other to
-share public domain and creative commons movies. The plugin need some
-stability work with seeking and picking the right file in a torrent
-with many files, but is already usable. Please note that the plugin
-is not removing downloaded files when vlc is stopped, so it can fill
-up your disk if you are not careful. Have fun. :)</p>
-
-<p>I would love to get help maintaining this package. Get in touch if
-you are interested.</p>
-
-<p>As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
-</description>
- </item>
-
- <item>
- <title>Using the Kodi API to play Youtube videos</title>
- <link>http://people.skolelinux.org/pere/blog/Using_the_Kodi_API_to_play_Youtube_videos.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Using_the_Kodi_API_to_play_Youtube_videos.html</guid>
- <pubDate>Sun, 2 Sep 2018 23:40:00 +0200</pubDate>
- <description><p>I continue to explore my Kodi installation, and today I wanted to
-tell it to play a youtube URL I received in a chat, without having to
-insert search terms using the on-screen keyboard. After searching the
-web for API access to the Youtube plugin and testing a bit, I managed
-to find a recipe that worked. If you got a kodi instance with its API
-available from http://kodihost/jsonrpc, you can try the following to
-have check out a nice cover band.</p>
-
-<p><blockquote><pre>curl --silent --header 'Content-Type: application/json' \
- --data-binary '{ "id": 1, "jsonrpc": "2.0", "method": "Player.Open",
- "params": {"item": { "file":
- "plugin://plugin.video.youtube/play/?video_id=LuRGVM9O0qg" } } }' \
- http://projector.local/jsonrpc</pre></blockquote></p>
-
-<p>I've extended kodi-stream program to take a video source as its
-first argument. It can now handle direct video links, youtube links
-and 'desktop' to stream my desktop to Kodi. It is almost like a
-Chromecast. :)</p>
-
<p>As usual, if you use Bitcoin and want to show your support of my
activities, please send Bitcoin donations to my address
<b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
projects / homepage.git / blobdiff