X-Git-Url: http://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/c9cd2ef81ddebb5affcd3449627617c73f4cbced..6621ff349d531b5887d38da305c6d1fde095b36d:/blog/index.rss diff --git a/blog/index.rss b/blog/index.rss index ae2847a8ad..cfcefdc156 100644 --- a/blog/index.rss +++ b/blog/index.rss @@ -7,55 +7,35 @@ - First rough draft Norwegian and Spanish edition of the book Made with Creative Commons - http://people.skolelinux.org/pere/blog/First_rough_draft_Norwegian_and_Spanish_edition_of_the_book_Made_with_Creative_Commons.html - http://people.skolelinux.org/pere/blog/First_rough_draft_Norwegian_and_Spanish_edition_of_the_book_Made_with_Creative_Commons.html - Tue, 13 Mar 2018 13:00:00 +0100 - <p>I am working on publishing yet another book related to Creative -Commons. This time it is a book filled with interviews and histories -from those around the globe making a living using Creative -Commons.</p> - -<p>Yesterday, after many months of hard work by several volunteer -translators, the first draft of a Norwegian Bokmål edition of the book -<a href="https://madewith.cc">Made with Creative Commons from 2017</a> -was complete. The Spanish translation is also complete, while the -Dutch, Polish, German and Ukraine edition need a lot of work. Get in -touch if you want to help make those happen, or would like to -translate into your mother tongue.</p> - -<p>The whole book project started when -<a href="http://gwolf.org/node/4102">Gunnar Wolf announced</a> that he -was going to make a Spanish edition of the book. I noticed, and -offered some input on how to make a book, based on my experience with -translating the -<a href="https://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22441576.html">Free -Culture</a> and -<a href="https://debian-handbook.info/get/#norwegian">The Debian -Administrator's Handbook</a> books to Norwegian Bokmål. To make a -long story short, we ended up working on a Bokmål edition, and now the -first rough translation is complete, thanks to the hard work of -Ole-Erik Yrvin, Ingrid Yrvin, Allan Nordhøy and myself. The first -proof reading is almost done, and only the second and third proof -reading remains. We will also need to translate the 14 figures and -create a book cover. Once it is done we will publish the book on -paper, as well as in PDF, ePub and possibly Mobi formats.</p> - -<p>The book itself originates as a manuscript on Google Docs, is -downloaded as ODT from there and converted to Markdown using pandoc. -The Markdown in modified by a script before is converted to DocBook -using pandoc. The DocBook is modified again using a script before it -is used to create a Gettext POT file for translators. The translated -PO file is then combined with the earlier mentioned DocBook file to -create a translated DocBook file, which finally is given to dblatex to -create the final PDF. The end result is a set of editions of the -manuscript, one English and one for each of the translations.</p> - -<p>The translation is conducted using -<a href="https://hosted.weblate.org/projects/madewithcc/translation/">the -Weblate web based translation system</a>. Please have a look there -and get in touch if you would like to help out with proof -reading. :)</p> + Time for an official MIME type for patches? + http://people.skolelinux.org/pere/blog/Time_for_an_official_MIME_type_for_patches_.html + http://people.skolelinux.org/pere/blog/Time_for_an_official_MIME_type_for_patches_.html + Thu, 1 Nov 2018 08:15:00 +0100 + <p>As part of my involvement in +<a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core">the Nikita +archive API project</a>, I've been importing a fairly large lump of +emails into a test instance of the archive to see how well this would +go. I picked a subset of <a href="https://notmuchmail.org/">my +notmuch email database</a>, all public emails sent to me via +@lists.debian.org, giving me a set of around 216 000 emails to import. +In the process, I had a look at the various attachments included in +these emails, to figure out what to do with attachments, and noticed +that one of the most common attachment formats do not have +<a href="https://www.iana.org/assignments/media-types/media-types.xhtml">an +official MIME type</a> registered with IANA/IETF. The output from +diff, ie the input for patch, is on the top 10 list of formats +included in these emails. At the moment people seem to use either +text/x-patch or text/x-diff, but neither is officially registered. It +would be better if one official MIME type were registered and used +everywhere.</p> + +<p>To try to get one official MIME type for these files, I've brought +up the topic on +<a href="https://www.ietf.org/mailman/listinfo/media-types">the +media-types mailing list</a>. If you are interested in discussion +which MIME type to use as the official for patch files, or involved in +making software using a MIME type for patches, perhaps you would like +to join the discussion?</p> <p>As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -64,47 +44,72 @@ activities, please send Bitcoin donations to my address - Debian used in the subway info screens in Oslo, Norway - http://people.skolelinux.org/pere/blog/Debian_used_in_the_subway_info_screens_in_Oslo__Norway.html - http://people.skolelinux.org/pere/blog/Debian_used_in_the_subway_info_screens_in_Oslo__Norway.html - Fri, 2 Mar 2018 13:10:00 +0100 - <p>Today I was pleasantly surprised to discover my operating system of -choice, Debian, was used in the info screens on the subway stations. -While passing Nydalen subway station in Oslo, Norway, I discovered the -info screen booting with some text scrolling. I was not quick enough -with my camera to be able to record a video of the scrolling boot -screen, but I did get a photo from when the boot got stuck with a -corrupt file system: - -<p align="center"><a href="http://people.skolelinux.org/pere/blog/images/2018-03-02-ruter-debian-lenny.jpeg"><img align="center" width="40%" src="http://people.skolelinux.org/pere/blog/images/2018-03-02-ruter-debian-lenny.jpeg" alt="[photo of subway info screen]"></a></p> - -<p>While I am happy to see Debian used more places, some details of the -content on the screen worries me.</p> - -<p>The image show the version booting is 'Debian GNU/Linux lenny/sid', -indicating that this is based on code taken from Debian Unstable/Sid -after Debian Etch (version 4) was released 2007-04-08 and before -Debian Lenny (version 5) was released 2009-02-14. Since Lenny Debian -has released version 6 (Squeeze) 2011-02-06, 7 (Wheezy) 2013-05-04, 8 -(Jessie) 2015-04-25 and 9 (Stretch) 2017-06-15, according to -<a href="https://en.wikipedia.org/wiki/Debian_version_history">a Debian -version history on Wikpedia</a>. This mean the system is running -around 10 year old code, with no security fixes from the vendor for -many years.</p> - -<p>This is not the first time I discover the Oslo subway company, -Ruter, running outdated software. In 2012, -<a href="http://people.skolelinux.org/pere/blog/Er_billettautomatene_til_kollektivtrafikken_i_Oslo_uten_sikkerhetsoppdateringer_.html">I -discovered the ticket vending machines were running Windows 2000</a>, -and this was -<a href="http://people.skolelinux.org/pere/blog/Fortsatt_ingen_sikkerhetsoppdateringer_for_billettautomatene_til_kollektivtrafikken_i_Oslo_.html">still -the case in 2016</a>. Given the response from the responsible people -in 2016, I would assume the machines are still running unpatched -Windows 2000. Thus, an unpatched Debian setup come as no surprise.</p> - -<p>The photo is made available under the license terms -<a href="http://creativecommons.org/licenses/by/4.0/">Creative Commons -4.0 Attribution International (CC BY 4.0)</a>.</p> + Measuring the speaker frequency response using the AUDMES free software GUI - nice free software + http://people.skolelinux.org/pere/blog/Measuring_the_speaker_frequency_response_using_the_AUDMES_free_software_GUI___nice_free_software.html + http://people.skolelinux.org/pere/blog/Measuring_the_speaker_frequency_response_using_the_AUDMES_free_software_GUI___nice_free_software.html + Mon, 22 Oct 2018 08:40:00 +0200 + <p><img src="http://people.skolelinux.org/pere/blog/images/2018-10-22-audmes-measure-speakers.png" align="right" width="40%"/></p> + +<p>My current home stereo is a patchwork of various pieces I got on +flee markeds over the years. It is amazing what kind of equipment +show up there. I've been wondering for a while if it was possible to +measure how well this equipment is working together, and decided to +see how far I could get using free software. After trawling the web I +came across an article from DIY Audio and Video on +<a href="https://www.diyaudioandvideo.com/Tutorial/SpeakerResponseTesting/">Speaker +Testing and Analysis</a> describing how to test speakers, and it listing +several software options, among them +<a href="https://sourceforge.net/projects/audmes/">AUDio MEasurement +System (AUDMES)</a>. It is the only free software system I could find +focusing on measuring speakers and audio frequency response. In the +process I also found an interesting article from NOVO on +<a href="http://novo.press/understanding-speaker-specifications-and-frequency-response/">Understanding +Speaker Specifications and Frequency Response</a> and an article from +ecoustics on +<a href="https://www.ecoustics.com/articles/understanding-speaker-frequency-response/">Understanding +Speaker Frequency Response</a>, with a lot of information on what to +look for and how to interpret the graphs. Armed with this knowledge, +I set out to measure the state of my speakers.</p> + +<p>The first hurdle was that AUDMES hadn't seen a commit for 10 years +and did not build with current compilers and libraries. I got in +touch with its author, who no longer was spending time on the program +but gave me write access to the subversion repository on Sourceforge. +The end result is that now the code build on Linux and is capable of +saving and loading the collected frequency response data in CSV +format. The application is quite nice and flexible, and I was able to +select the input and output audio interfaces independently. This made +it possible to use a USB mixer as the input source, while sending +output via my laptop headphone connection. I lacked the hardware and +cabling to figure out a different way to get independent cabling to +speakers and microphone.</p> + +<p>Using this setup I could see how a large range of high frequencies +apparently were not making it out of my speakers. The picture show +the frequency response measurement of one of the speakers. Note the +frequency lines seem to be slightly misaligned, compared to the CSV +output from the program. I can not hear several of these are high +frequencies, according to measurement from +<a href="http://freehearingtestsoftware.com">Free Hearing Test +Software</a>, an freeware system to measure your hearing (still +looking for a free software alternative), so I do not know if they are +coming out out the speakers. I thus do not quite know how to figure +out if the missing frequencies is a problem with the microphone, the +amplifier or the speakers, but I managed to rule out the audio card in my +PC by measuring my Bose noise canceling headset using its own +microphone. This setup was able to see the high frequency tones, so +the problem with my stereo had to be in the amplifier or speakers.</p> + +<p>Anyway, to try to role out one factor I ended up picking up a new +set of speakers at a flee marked, and these work a lot better than the +old speakers, so I guess the microphone and amplifier is OK. If you +need to measure your own speakers, check out AUDMES. If more people +get involved, perhaps the project could become good enough to +<a href="https://bugs.debian.org/910876">include in Debian</a>? And if +you know of some other free software to measure speakers and amplifier +performance, please let me know. I am aware of the freeware option +<a href="https://www.roomeqwizard.com/">REW</a>, but I want something +that can be developed also when the vendor looses interest.</p> <p>As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -113,32 +118,60 @@ activities, please send Bitcoin donations to my address - The SysVinit upstream project just migrated to git - http://people.skolelinux.org/pere/blog/The_SysVinit_upstream_project_just_migrated_to_git.html - http://people.skolelinux.org/pere/blog/The_SysVinit_upstream_project_just_migrated_to_git.html - Sun, 18 Feb 2018 09:20:00 +0100 - <p>Surprising as it might sound, there are still computers using the -traditional Sys V init system, and there probably will be until -systemd start working on Hurd and FreeBSD. -<a href="https://savannah.nongnu.org/projects/sysvinit">The upstream -project still exist</a>, though, and up until today, the upstream -source was available from Savannah via subversion. I am happy to -report that this just changed.</p> - -<p>The upstream source is now in Git, and consist of three -repositories:</p> + Web browser integration of VLC with Bittorrent support + http://people.skolelinux.org/pere/blog/Web_browser_integration_of_VLC_with_Bittorrent_support.html + http://people.skolelinux.org/pere/blog/Web_browser_integration_of_VLC_with_Bittorrent_support.html + Sun, 21 Oct 2018 09:50:00 +0200 + <p>Bittorrent is as far as I know, currently the most efficient way to +distribute content on the Internet. It is used all by all sorts of +content providers, from national TV stations like +<a href="https://www.nrk.no/">NRK</a>, Linux distributors like +<a href="https://www.debian.org/">Debian</a> and +<a href="https://www.ubuntu.com/">Ubuntu</a>, and of course the +<a href="https://archive.org/">Internet archive</A>. + +<p>Almost a month ago +<a href="https://tracker.debian.org/pkg/vlc-plugin-bittorrent">a new +package adding Bittorrent support to VLC</a> became available in +Debian testing and unstable. To test it, simply install it like +this:</p> -<ul> - -<li><a href="http://git.savannah.nongnu.org/cgit/sysvinit.git">sysvinit</a></li> -<li><a href="http://git.savannah.nongnu.org/cgit/sysvinit/insserv.git">insserv</a></li> -<li><a href="http://git.savannah.nongnu.org/cgit/sysvinit/startpar.git">startpar</a></li> - -</ul> +<p><pre> +apt install vlc-plugin-bittorrent +</pre></p> -<p>I do not really spend much time on the project these days, and I -has mostly retired, but found it best to migrate the source to a good -version control system to help those willing to move it forward.</p> +<p>Since the plugin was made available for the first time in Debian, +several improvements have been made to it. In version 2.2-4, now +available in both testing and unstable, a desktop file is provided to +teach browsers to start VLC when the user click on torrent files or +magnet links. The last part is thanks to me finally understanding +what the strange x-scheme-handler style MIME types in desktop files +are used for. By adding x-scheme-handler/magnet to the MimeType entry +in the desktop file, at least the browsers Firefox and Chromium will +suggest to start VLC when selecting a magnet URI on a web page. The +end result is that now, with the plugin installed in Buster and Sid, +one can visit any +<a href="https://archive.org/details/CopyingIsNotTheft1080p">Internet +Archive page with movies</a> using a web browser and click on the +torrent link to start streaming the movie.</p> + +<p>Note, there is still some misfeatures in the plugin. One is the +fact that it will hang and +<a href="https://github.com/johang/vlc-bittorrent/issues/13">block VLC +from exiting until the torrent streaming starts</a>. Another is the +fact that it +<a href="https://github.com/johang/vlc-bittorrent/issues/9">will pick +and play a random file in a multi file torrent</a>. This is not +always the video file you want. Combined with the first it can be a +bit hard to get the video streaming going. But when it work, it seem +to do a good job.</p> + +<p>For the Debian packaging, I would love to find a good way to test +if the plugin work with VLC using autopkgtest. I tried, but do not +know enough of the inner workings of VLC to get it working. For now +the autopkgtest script is only checking if the .so file was +successfully loaded by VLC. If you have any suggestions, please +submit a patch to the Debian bug tracking system.</p> <p>As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -147,72 +180,73 @@ activities, please send Bitcoin donations to my address - Using VLC to stream bittorrent sources - http://people.skolelinux.org/pere/blog/Using_VLC_to_stream_bittorrent_sources.html - http://people.skolelinux.org/pere/blog/Using_VLC_to_stream_bittorrent_sources.html - Wed, 14 Feb 2018 08:00:00 +0100 - <p>A few days ago, a new major version of -<a href="https://www.videolan.org/">VLC</a> was announced, and I -decided to check out if it now supported streaming over -<a href="http://bittorrent.org/">bittorrent</a> and -<a href="https://webtorrent.io">webtorrent</a>. Bittorrent is one of -the most efficient ways to distribute large files on the Internet, and -Webtorrent is a variant of Bittorrent using -<a href="https://webrtc.org">WebRTC</a> as its transport channel, -allowing web pages to stream and share files using the same technique. -The network protocols are similar but not identical, so a client -supporting one of them can not talk to a client supporting the other. -I was a bit surprised with what I discovered when I started to look. -Looking at -<a href="https://www.videolan.org/vlc/releases/3.0.0.html">the release -notes</a> did not help answering this question, so I started searching -the web. I found several news articles from 2013, most of them -tracing the news from Torrentfreak -("<a href=https://torrentfreak.com/open-source-giant-vlc-mulls-bittorrent-support-130211/">Open -Source Giant VLC Mulls BitTorrent Streaming Support</a>"), about a -initiative to pay someone to create a VLC patch for bittorrent -support. To figure out what happend with this initiative, I headed -over to the #videolan IRC channel and asked if there were some bug or -feature request tickets tracking such feature. I got an answer from -lead developer Jean-Babtiste Kempf, telling me that there was a patch -but neither he nor anyone else knew where it was. So I searched a bit -more, and came across an independent -<a href="https://github.com/johang/vlc-bittorrent">VLC plugin to add -bittorrent support</a>, created by Johan Gunnarsson in 2016/2017. -Again according to Jean-Babtiste, this is not the patch he was talking -about.</p> - -<p>Anyway, to test the plugin, I made a working Debian package from -the git repository, with some modifications. After installing this -package, I could stream videos from -<a href="https://www.archive.org/">The Internet Archive</a> using VLC -commands like this:</p> + Release 0.2 of free software archive system Nikita announced + http://people.skolelinux.org/pere/blog/Release_0_2_of_free_software_archive_system_Nikita_announced.html + http://people.skolelinux.org/pere/blog/Release_0_2_of_free_software_archive_system_Nikita_announced.html + Thu, 18 Oct 2018 14:40:00 +0200 + <p>This morning, the new release of the +<a href="https://gitlab.com/OsloMet-ABI/nikita-noark5-core/">Nikita +Noark 5 core project</a> was +<a href="https://lists.nuug.no/pipermail/nikita-noark/2018-October/000406.html">announced +on the project mailing list</a>. The free software solution is an +implementation of the Norwegian archive standard Noark 5 used by +government offices in Norway. These were the changes in version 0.2 +since version 0.1.1 (from NEWS.md): -<p><blockquote><pre> -vlc https://archive.org/download/LoveNest/LoveNest_archive.torrent -</pre></blockquote></p> +<ul> + <li>Fix typos in REL names</li> + <li>Tidy up error message reporting</li> + <li>Fix issue where we used Integer.valueOf(), not Integer.getInteger()</li> + <li>Change some String handling to StringBuffer</li> + <li>Fix error reporting</li> + <li>Code tidy-up</li> + <li>Fix issue using static non-synchronized SimpleDateFormat to avoid + race conditions</li> + <li>Fix problem where deserialisers were treating integers as strings</li> + <li>Update methods to make them null-safe</li> + <li>Fix many issues reported by coverity</li> + <li>Improve equals(), compareTo() and hash() in domain model</li> + <li>Improvements to the domain model for metadata classes</li> + <li>Fix CORS issues when downloading document</li> + <li>Implementation of case-handling with registryEntry and document upload</li> + <li>Better support in Javascript for OPTIONS</li> + <li>Adding concept description of mail integration</li> + <li>Improve setting of default values for GET on ny-journalpost</li> + <li>Better handling of required values during deserialisation </li> + <li>Changed tilknyttetDato (M620) from date to dateTime</li> + <li>Corrected some opprettetDato (M600) (de)serialisation errors.</li> + <li>Improve parse error reporting.</li> + <li>Started on OData search and filtering.</li> + <li>Added Contributor Covenant Code of Conduct to project.</li> + <li>Moved repository and project from Github to Gitlab.</li> + <li>Restructured repository, moved code into src/ and web/.</li> + <li>Updated code to use Spring Boot version 2.</li> + <li>Added support for OAuth2 authentication.</li> + <li>Fixed several bugs discovered by Coverity.</li> + <li>Corrected handling of date/datetime fields.</li> + <li>Improved error reporting when rejecting during deserializatoin.</li> + <li>Adjusted default values provided for ny-arkivdel, ny-mappe, + ny-saksmappe, ny-journalpost and ny-dokumentbeskrivelse.</li> + <li>Several fixes for korrespondansepart*.</li> + <li>Updated web GUI: + <ul> + <li>Now handle both file upload and download.</li> + <li>Uses new OAuth2 authentication for login.</li> + <li>Forms now fetches default values from API using GET.</li> + <li>Added RFC 822 (email), TIFF and JPEG to list of possible file formats.</li> + </ul></li> +</ul> + +<p>The changes and improvements are extensive. Running diffstat on +the changes between git tab 0.1.1 and 0.2 show 1098 files changed, +108666 insertions(+), 54066 deletions(-).</p> -<p>The plugin is supposed to handle magnet links too, but since The -Internet Archive do not have magnet links and I did not want to spend -time tracking down another source, I have not tested it. It can take -quite a while before the video start playing without any indication of -what is going on from VLC. It took 10-20 seconds when I measured it. -Some times the plugin seem unable to find the correct video file to -play, and show the metadata XML file name in the VLC status line. I -have no idea why.</p> - -<p>I have created a <a href="https://bugs.debian.org/890360">request for -a new package in Debian (RFP)</a> and -<a href="https://github.com/johang/vlc-bittorrent/issues/1">asked if -the upstream author is willing to help make this happen</a>. Now we -wait to see what come out of this. I do not want to maintain a -package that is not maintained upstream, nor do I really have time to -maintain more packages myself, so I might leave it at this. But I -really hope someone step up to do the packaging, and hope upstream is -still maintaining the source. If you want to help, please update the -RFP request or the upstream issue.</p> - -<p>I have not found any traces of webtorrent support for VLC.</p> +<p>If free and open standardized archiving API sound interesting to +you, please contact us on IRC +(<a href="irc://irc.freenode.net/%23nikita">#nikita on +irc.freenode.net</a>) or email +(<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 @@ -221,25 +255,104 @@ activities, please send Bitcoin donations to my address - Version 3.1 of Cura, the 3D print slicer, is now in Debian - http://people.skolelinux.org/pere/blog/Version_3_1_of_Cura__the_3D_print_slicer__is_now_in_Debian.html - http://people.skolelinux.org/pere/blog/Version_3_1_of_Cura__the_3D_print_slicer__is_now_in_Debian.html - Tue, 13 Feb 2018 06:20:00 +0100 - <p>A new version of the -<a href="https://tracker.debian.org/pkg/cura">3D printer slicer -software Cura</a>, version 3.1.0, is now available in Debian Testing -(aka Buster) and Debian Unstable (aka Sid). I hope you find it -useful. It was uploaded the last few days, and the last update will -enter testing tomorrow. See the -<a href="https://ultimaker.com/en/products/cura-software/release-notes">release -notes</a> for the list of bug fixes and new features. Version 3.2 -was announced 6 days ago. We will try to get it into Debian as -well.</p> - -<p>More information related to 3D printing is available on the -<a href="https://wiki.debian.org/3DPrinting">3D printing</a> and -<a href="https://wiki.debian.org/3D-printer">3D printer</a> wiki pages -in Debian.</p> + Fetching trusted timestamps using the rfc3161ng python module + http://people.skolelinux.org/pere/blog/Fetching_trusted_timestamps_using_the_rfc3161ng_python_module.html + http://people.skolelinux.org/pere/blog/Fetching_trusted_timestamps_using_the_rfc3161ng_python_module.html + Mon, 8 Oct 2018 12:30:00 +0200 + <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 @@ -248,135 +361,217 @@ activities, please send Bitcoin donations to my address - Overvåkning i Kina vs. Norge - http://people.skolelinux.org/pere/blog/Overv_kning_i_Kina_vs__Norge.html - http://people.skolelinux.org/pere/blog/Overv_kning_i_Kina_vs__Norge.html - Mon, 12 Feb 2018 09:40:00 +0100 - <p>Jeg lar meg fascinere av en artikkel -<a href="https://www.dagbladet.no/kultur/terroristene-star-pa-dora/69436116">i -Dagbladet om Kinas håndtering av Xinjiang</a>, spesielt følgende -utsnitt:</p> - -<p><blockquote> - -<p>«I den sørvestlige byen Kashgar nærmere grensa til -Sentral-Asia meldes det nå at 120.000 uigurer er internert i såkalte -omskoleringsleirer. Samtidig er det innført et omfattende -helsesjekk-program med innsamling og lagring av DNA-prøver fra -absolutt alle innbyggerne. De mest avanserte overvåkingsmetodene -testes ut her. Programmer for å gjenkjenne ansikter og stemmer er på -plass i regionen. Der har de lokale myndighetene begynt å installere -GPS-systemer i alle kjøretøy og egne sporingsapper i -mobiltelefoner.</p> - -<p>Politimetodene griper så dypt inn i folks dagligliv at motstanden -mot Beijing-regimet øker.»</p> - -</blockquote></p> - -<p>Beskrivelsen avviker jo desverre ikke så veldig mye fra tilstanden -her i Norge.</p> - -<table> -<tr> -<th>Dataregistrering</th> -<th>Kina</th> -<th>Norge</th> - -<tr> -<td>Innsamling og lagring av DNA-prøver fra befolkningen</td> -<td>Ja</td> -<td>Delvis, planlagt for alle nyfødte.</td> -</tr> - -<tr> -<td>Ansiktsgjenkjenning</td> -<td>Ja</td> -<td>Ja</td> -</tr> - -<tr> -<td>Stemmegjenkjenning</td> -<td>Ja</td> -<td>Nei</td> -</tr> - -<tr> -<td>Posisjons-sporing av mobiltelefoner</td> -<td>Ja</td> -<td>Ja</td> -</tr> - -<tr> -<td>Posisjons-sporing av biler</td> -<td>Ja</td> -<td>Ja</td> -</tr> - -</table> - -<p>I Norge har jo situasjonen rundt Folkehelseinstituttets lagring av -DNA-informasjon på vegne av politiet, der de nektet å slette -informasjon politiet ikke hadde lov til å ta vare på, gjort det klart -at DNA tar vare på ganske lenge. I tillegg finnes det utallige -biobanker som lagres til evig tid, og det er planer om å innføre -<a href="https://www.aftenposten.no/norge/i/75E9/4-av-10-mener-staten-bor-lagre-DNA-profiler-pa-alle-nyfodte">evig -lagring av DNA-materiale fra alle spebarn som fødes</a> (med mulighet -for å be om sletting).</p> - -<p>I Norge er det system på plass for ansiktsgjenkjenning, som -<a href="https://www.nrk.no/norge/kun-gardermoen-har-teknologi-for-ansiktsgjenkjenning-i-norge-1.12719461">en -NRK-artikkel fra 2015</a> forteller er aktiv på Gardermoen, samt -<a href="https://www.dagbladet.no/nyheter/inntil-27-000-bor-i-norge-under-falsk-id/60500781">brukes -til å analysere bilder innsamlet av myndighetene</a>. Brukes det også -flere plasser? Det er tett med overvåkningskamera kontrollert av -politi og andre myndigheter i for eksempel Oslo sentrum.</p> - -<p>Jeg er ikke kjent med at Norge har noe system for identifisering av -personer ved hjelp av stemmegjenkjenning.</p> - -<p>Posisjons-sporing av mobiltelefoner er ruinemessig tilgjengelig for -blant annet politi, NAV og Finanstilsynet, i tråd med krav i -telefonselskapenes konsesjon. I tillegg rapporterer smarttelefoner -sin posisjon til utviklerne av utallige mobil-apper, der myndigheter -og andre kan hente ut informasjon ved behov. Det er intet behov for -noen egen app for dette.</p> - -<p>Posisjons-sporing av biler er rutinemessig tilgjengelig via et tett -nett av målepunkter på veiene (automatiske bomstasjoner, -køfribrikke-registrering, automatiske fartsmålere og andre veikamera). -Det er i tillegg vedtatt at alle nye biler skal selges med utstyr for -GPS-sporing (eCall).</p> - -<p>Det er jammen godt vi lever i et liberalt demokrati, og ikke en -overvåkningsstat, eller?</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 + Automatic Google Drive sync using grive in Debian + http://people.skolelinux.org/pere/blog/Automatic_Google_Drive_sync_using_grive_in_Debian.html + http://people.skolelinux.org/pere/blog/Automatic_Google_Drive_sync_using_grive_in_Debian.html + Thu, 4 Oct 2018 15:20:00 +0200 + <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> - How hard can æ, ø and å be? - http://people.skolelinux.org/pere/blog/How_hard_can______and___be_.html - http://people.skolelinux.org/pere/blog/How_hard_can______and___be_.html - Sun, 11 Feb 2018 17:10:00 +0100 - <img src="http://people.skolelinux.org/pere/blog/images/2018-02-11-peppes-unicode.jpeg" align="right"/> + Valutakrambod - A python and bitcoin love story + http://people.skolelinux.org/pere/blog/Valutakrambod___A_python_and_bitcoin_love_story.html + http://people.skolelinux.org/pere/blog/Valutakrambod___A_python_and_bitcoin_love_story.html + Sat, 29 Sep 2018 22:20:00 +0200 + <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>We write 2018, and it is 30 years since Unicode was introduced. -Most of us in Norway have come to expect the use of our alphabet to -just work with any computer system. But it is apparently beyond reach -of the computers printing recites at a restaurant. Recently I visited -a Peppes pizza resturant, and noticed a few details on the recite. -Notice how 'ø' and 'å' are replaced with strange symbols in -'Servitør', 'Å BETALE', 'Beløp pr. gjest', 'Takk for besøket.' and 'Vi -gleder oss til å se deg igjen'.</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>I would say that this state is passed sad and over in embarrassing.</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>I removed personal and private information to be nice.</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 @@ -385,74 +580,40 @@ activities, please send Bitcoin donations to my address - Legal to share more than 11,000 movies listed on IMDB? - http://people.skolelinux.org/pere/blog/Legal_to_share_more_than_11_000_movies_listed_on_IMDB_.html - http://people.skolelinux.org/pere/blog/Legal_to_share_more_than_11_000_movies_listed_on_IMDB_.html - Sun, 7 Jan 2018 23:30:00 +0100 - <p>I've continued to track down list of movies that are legal to -distribute on the Internet, and identified more than 11,000 title IDs -in The Internet Movie Database (IMDB) so far. Most of them (57%) are -feature films from USA published before 1923. I've also tracked down -more than 24,000 movies I have not yet been able to map to IMDB title -ID, so the real number could be a lot higher. According to the front -web page for <a href="https://retrofilmvault.com/">Retro Film -Vault</A>, there are 44,000 public domain films, so I guess there are -still some left to identify.</p> - -<p>The complete data set is available from -<a href="https://github.com/petterreinholdtsen/public-domain-free-imdb">a -public git repository</a>, including the scripts used to create it. -Most of the data is collected using web scraping, for example from the -"product catalog" of companies selling copies of public domain movies, -but any source I find believable is used. I've so far had to throw -out three sources because I did not trust the public domain status of -the movies listed.</p> - -<p>Anyway, this is the summary of the 28 collected data sources so -far:</p> + VLC in Debian now can do bittorrent streaming + http://people.skolelinux.org/pere/blog/VLC_in_Debian_now_can_do_bittorrent_streaming.html + http://people.skolelinux.org/pere/blog/VLC_in_Debian_now_can_do_bittorrent_streaming.html + Mon, 24 Sep 2018 21:20:00 +0200 + <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><pre> - 2352 entries ( 66 unique) with and 15983 without IMDB title ID in free-movies-archive-org-search.json - 2302 entries ( 120 unique) with and 0 without IMDB title ID in free-movies-archive-org-wikidata.json - 195 entries ( 63 unique) with and 200 without IMDB title ID in free-movies-cinemovies.json - 89 entries ( 52 unique) with and 38 without IMDB title ID in free-movies-creative-commons.json - 344 entries ( 28 unique) with and 655 without IMDB title ID in free-movies-fesfilm.json - 668 entries ( 209 unique) with and 1064 without IMDB title ID in free-movies-filmchest-com.json - 830 entries ( 21 unique) with and 0 without IMDB title ID in free-movies-icheckmovies-archive-mochard.json - 19 entries ( 19 unique) with and 0 without IMDB title ID in free-movies-imdb-c-expired-gb.json - 6822 entries ( 6669 unique) with and 0 without IMDB title ID in free-movies-imdb-c-expired-us.json - 137 entries ( 0 unique) with and 0 without IMDB title ID in free-movies-imdb-externlist.json - 1205 entries ( 57 unique) with and 0 without IMDB title ID in free-movies-imdb-pd.json - 84 entries ( 20 unique) with and 167 without IMDB title ID in free-movies-infodigi-pd.json - 158 entries ( 135 unique) with and 0 without IMDB title ID in free-movies-letterboxd-looney-tunes.json - 113 entries ( 4 unique) with and 0 without IMDB title ID in free-movies-letterboxd-pd.json - 182 entries ( 100 unique) with and 0 without IMDB title ID in free-movies-letterboxd-silent.json - 229 entries ( 87 unique) with and 1 without IMDB title ID in free-movies-manual.json - 44 entries ( 2 unique) with and 64 without IMDB title ID in free-movies-openflix.json - 291 entries ( 33 unique) with and 474 without IMDB title ID in free-movies-profilms-pd.json - 211 entries ( 7 unique) with and 0 without IMDB title ID in free-movies-publicdomainmovies-info.json - 1232 entries ( 57 unique) with and 1875 without IMDB title ID in free-movies-publicdomainmovies-net.json - 46 entries ( 13 unique) with and 81 without IMDB title ID in free-movies-publicdomainreview.json - 698 entries ( 64 unique) with and 118 without IMDB title ID in free-movies-publicdomaintorrents.json - 1758 entries ( 882 unique) with and 3786 without IMDB title ID in free-movies-retrofilmvault.json - 16 entries ( 0 unique) with and 0 without IMDB title ID in free-movies-thehillproductions.json - 63 entries ( 16 unique) with and 141 without IMDB title ID in free-movies-vodo.json -11583 unique IMDB title IDs in total, 8724 only in one list, 24647 without IMDB title ID -</pre></p> +<p><blockquote><pre> +vlc https://archive.org/download/TheGoat/TheGoat_archive.torrent +</pre></blockquote></p> -<p> I keep finding more data sources. I found the cinemovies source -just a few days ago, and as you can see from the summary, it extended -my list with 63 movies. Check out the mklist-* scripts in the git -repository if you are curious how the lists are created. Many of the -titles are extracted using searches on IMDB, where I look for the -title and year, and accept search results with only one movie listed -if the year matches. This allow me to automatically use many lists of -movies without IMDB title ID references at the cost of increasing the -risk of wrongly identify a IMDB title ID as public domain. So far my -random manual checks have indicated that the method is solid, but I -really wish all lists of public domain movies would include unique -movie identifier like the IMDB title ID. It would make the job of -counting movies in the public domain a lot easier.</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 @@ -461,437 +622,46 @@ activities, please send Bitcoin donations to my address - Kommentarer til «Evaluation of (il)legality» for Popcorn Time - http://people.skolelinux.org/pere/blog/Kommentarer_til__Evaluation_of__il_legality__for_Popcorn_Time.html - http://people.skolelinux.org/pere/blog/Kommentarer_til__Evaluation_of__il_legality__for_Popcorn_Time.html - Wed, 20 Dec 2017 11:40:00 +0100 - <p>I går var jeg i Follo tingrett som sakkyndig vitne og presenterte - mine undersøkelser rundt - <a href="https://github.com/petterreinholdtsen/public-domain-free-imdb">telling - av filmverk i det fri</a>, relatert til - <a href="https://www.nuug.no/">foreningen NUUG</a>s involvering i - <a href="https://www.nuug.no/news/tags/dns-domenebeslag/">saken om - Økokrims beslag og senere inndragning av DNS-domenet - popcorn-time.no</a>. Jeg snakket om flere ting, men mest om min - vurdering av hvordan filmbransjen har målt hvor ulovlig Popcorn Time - er. Filmbransjens måling er så vidt jeg kan se videreformidlet uten - endringer av norsk politi, og domstolene har lagt målingen til grunn - når de har vurdert Popcorn Time både i Norge og i utlandet (tallet - 99% er referert også i utenlandske domsavgjørelser).</p> - -<p>I forkant av mitt vitnemål skrev jeg et notat, mest til meg selv, - med de punktene jeg ønsket å få frem. Her er en kopi av notatet jeg - skrev og ga til aktoratet. Merkelig nok ville ikke dommerene ha - notatet, så hvis jeg forsto rettsprosessen riktig ble kun - histogram-grafen lagt inn i dokumentasjonen i saken. Dommerne var - visst bare interessert i å forholde seg til det jeg sa i retten, - ikke det jeg hadde skrevet i forkant. Uansett så antar jeg at flere - enn meg kan ha glede av teksten, og publiserer den derfor her. - Legger ved avskrift av dokument 09,13, som er det sentrale - dokumentet jeg kommenterer.</p> - -<p><strong>Kommentarer til «Evaluation of (il)legality» for Popcorn - Time</strong></p> - -<p><strong>Oppsummering</strong></p> - -<p>Målemetoden som Økokrim har lagt til grunn når de påstår at 99% av - filmene tilgjengelig fra Popcorn Time deles ulovlig har - svakheter.</p> - -<p>De eller den som har vurdert hvorvidt filmer kan lovlig deles har - ikke lyktes med å identifisere filmer som kan deles lovlig og har - tilsynelatende antatt at kun veldig gamle filmer kan deles lovlig. - Økokrim legger til grunn at det bare finnes èn film, Charlie - Chaplin-filmen «The Circus» fra 1928, som kan deles fritt blant de - som ble observert tilgjengelig via ulike Popcorn Time-varianter. - Jeg finner tre flere blant de observerte filmene: «The Brain That - Wouldn't Die» fra 1962, «God’s Little Acre» fra 1958 og «She Wore a - Yellow Ribbon» fra 1949. Det er godt mulig det finnes flere. Det - finnes dermed minst fire ganger så mange filmer som lovlig kan deles - på Internett i datasettet Økokrim har lagt til grunn når det påstås - at mindre enn 1 % kan deles lovlig.</p> - -<p>Dernest, utplukket som gjøres ved søk på tilfeldige ord hentet fra - ordlisten til Dale-Chall avviker fra årsfordelingen til de brukte - filmkatalogene som helhet, hvilket påvirker fordelingen mellom - filmer som kan lovlig deles og filmer som ikke kan lovlig deles. I - tillegg gir valg av øvre del (de fem første) av søkeresultatene et - avvik fra riktig årsfordeling, hvilket påvirker fordelingen av verk - i det fri i søkeresultatet.</p> - -<p>Det som måles er ikke (u)lovligheten knyttet til bruken av Popcorn - Time, men (u)lovligheten til innholdet i bittorrent-filmkataloger - som vedlikeholdes uavhengig av Popcorn Time.</p> - -<p>Omtalte dokumenter: 09,12, <a href="#dok-09-13">09,13</a>, 09,14, -09,18, 09,19, 09,20.</p> - -<p><strong>Utfyllende kommentarer</strong></p> - -<p>Økokrim har forklart domstolene at minst 99% av alt som er - tilgjengelig fra ulike Popcorn Time-varianter deles ulovlig på - Internet. Jeg ble nysgjerrig på hvordan de er kommet frem til dette - tallet, og dette notatet er en samling kommentarer rundt målingen - Økokrim henviser til. Litt av bakgrunnen for at jeg valgte å se på - saken er at jeg er interessert i å identifisere og telle hvor mange - kunstneriske verk som er falt i det fri eller av andre grunner kan - lovlig deles på Internett, og dermed var interessert i hvordan en - hadde funnet den ene prosenten som kanskje deles lovlig.</p> - -<p>Andelen på 99% kommer fra et ukreditert og udatert notatet som tar - mål av seg å dokumentere en metode for å måle hvor (u)lovlig ulike - Popcorn Time-varianter er.</p> - -<p>Raskt oppsummert, så forteller metodedokumentet at på grunn av at - det ikke er mulig å få tak i komplett liste over alle filmtitler - tilgjengelig via Popcorn Time, så lages noe som skal være et - representativt utvalg ved å velge 50 søkeord større enn tre tegn fra - ordlisten kjent som Dale-Chall. For hvert søkeord gjøres et søk og - de første fem filmene i søkeresultatet samles inn inntil 100 unike - filmtitler er funnet. Hvis 50 søkeord ikke var tilstrekkelig for å - nå 100 unike filmtitler ble flere filmer fra hvert søkeresultat lagt - til. Hvis dette heller ikke var tilstrekkelig, så ble det hentet ut - og søkt på flere tilfeldig valgte søkeord inntil 100 unike - filmtitler var identifisert.</p> - -<p>Deretter ble for hver av filmtitlene «vurdert hvorvidt det var - rimelig å forvente om at verket var vernet av copyright, ved å se på - om filmen var tilgjengelig i IMDB, samt se på regissør, - utgivelsesår, når det var utgitt for bestemte markedsområder samt - hvilke produksjons- og distribusjonsselskap som var registrert» (min - oversettelse).</p> - -<p>Metoden er gjengitt både i de ukrediterte dokumentene 09,13 og - 09,19, samt beskrevet fra side 47 i dokument 09,20, lysark datert - 2017-02-01. Sistnevnte er kreditert Geerart Bourlon fra Motion - Picture Association EMEA. Metoden virker å ha flere svakheter som - gir resultatene en slagside. Den starter med å slå fast at det ikke - er mulig å hente ut en komplett liste over alle filmtitler som er - tilgjengelig, og at dette er bakgrunnen for metodevalget. Denne - forutsetningen er ikke i tråd med det som står i dokument 09,12, som - ikke heller har oppgitt forfatter og dato. Dokument 09,12 forteller - hvordan hele kataloginnholdet ble lasted ned og talt opp. Dokument - 09,12 er muligens samme rapport som ble referert til i dom fra Oslo - Tingrett 2017-11-03 - (<a href="https://www.domstol.no/no/Enkelt-domstol/Oslo--tingrett/Nyheter/ma-sperre-for-popcorn-time/">sak - 17-093347TVI-OTIR/05</a>) som rapport av 1. juni 2017 av Alexander - Kind Petersen, men jeg har ikke sammenlignet dokumentene ord for ord - for å kontrollere dette.</p> - -<p>IMDB er en forkortelse for The Internet Movie Database, en - anerkjent kommersiell nettjeneste som brukes aktivt av både - filmbransjen og andre til å holde rede på hvilke spillefilmer (og - endel andre filmer) som finnes eller er under produksjon, og - informasjon om disse filmene. Datakvaliteten er høy, med få feil og - få filmer som mangler. IMDB viser ikke informasjon om - opphavsrettslig status for filmene på infosiden for hver film. Som - del av IMDB-tjenesten finnes det lister med filmer laget av - frivillige som lister opp det som antas å være verk i det fri.</p> - -<p>Det finnes flere kilder som kan brukes til å finne filmer som er - allemannseie (public domain) eller har bruksvilkår som gjør det - lovlig for alleå dele dem på Internett. Jeg har de siste ukene - forsøkt å samle og krysskoble disse listene for å forsøke å telle - antall filmer i det fri. Ved å ta utgangspunkt i slike lister (og - publiserte filmer for Internett-arkivets del), har jeg så langt - klart å identifisere over 11 000 filmer, hovedsaklig spillefilmer. - -<p>De aller fleste oppføringene er hentet fra IMDB selv, basert på det - faktum at alle filmer laget i USA før 1923 er falt i det fri. - Tilsvarende tidsgrense for Storbritannia er 1912-07-01, men dette - utgjør bare veldig liten del av spillefilmene i IMDB (19 totalt). - En annen stor andel kommer fra Internett-arkivet, der jeg har - identifisert filmer med referanse til IMDB. Internett-arkivet, som - holder til i USA, har som - <a href="https://archive.org/about/terms.php">policy å kun publisere - filmer som det er lovlig å distribuere</a>. Jeg har under arbeidet - kommet over flere filmer som har blitt fjernet fra - Internett-arkivet, hvilket gjør at jeg konkluderer med at folkene - som kontrollerer Internett-arkivet har et aktivt forhold til å kun - ha lovlig innhold der, selv om det i stor grad er drevet av - frivillige. En annen stor liste med filmer kommer fra det - kommersielle selskapet Retro Film Vault, som selger allemannseide - filmer til TV- og filmbransjen, Jeg har også benyttet meg av lister - over filmer som hevdes å være allemannseie, det være seg Public - Domain Review, Public Domain Torrents og Public Domain Movies (.net - og .info), samt lister over filmer med Creative Commons-lisensiering - fra Wikipedia, VODO og The Hill Productions. Jeg har gjort endel - stikkontroll ved å vurdere filmer som kun omtales på en liste. Der - jeg har funnet feil som har gjort meg i tvil om vurderingen til de - som har laget listen har jeg forkastet listen fullstendig (gjelder - en liste fra IMDB).</p> - -<p>Ved å ta utgangspunkt i verk som kan antas å være lovlig delt på - Internett (fra blant annet Internett-arkivet, Public Domain - Torrents, Public Domain Reivew og Public Domain Movies), og knytte - dem til oppføringer i IMDB, så har jeg så langt klart å identifisere - over 11 000 filmer (hovedsaklig spillefilmer) det er grunn til å tro - kan lovlig distribueres av alle på Internett. Som ekstra kilder er - det brukt lister over filmer som antas/påstås å være allemannseie. - Disse kildene kommer fra miljøer som jobber for å gjøre tilgjengelig - for almennheten alle verk som er falt i det fri eller har - bruksvilkår som tillater deling. - -<p>I tillegg til de over 11 000 filmene der tittel-ID i IMDB er - identifisert, har jeg funnet mer enn 20 000 oppføringer der jeg ennå - ikke har hatt kapasitet til å spore opp tittel-ID i IMDB. Noen av - disse er nok duplikater av de IMDB-oppføringene som er identifisert - så langt, men neppe alle. Retro Film Vault hevder å ha 44 000 - filmverk i det fri i sin katalog, så det er mulig at det reelle - tallet er betydelig høyere enn de jeg har klart å identifisere så - langt. Konklusjonen er at tallet 11 000 er nedre grense for hvor - mange filmer i IMDB som kan lovlig deles på Internett. I følge <a - href="http://www.imdb.com/stats">statistikk fra IMDB</a> er det 4.6 - millioner titler registrert, hvorav 3 millioner er TV-serieepisoder. - Jeg har ikke funnet ut hvordan de fordeler seg per år.</p> - -<p>Hvis en fordeler på år alle tittel-IDene i IMDB som hevdes å lovlig - kunne deles på Internett, får en følgende histogram:</p> - -<p align="center"><img width="80%" src="http://people.skolelinux.org/pere/blog/images/2017-12-20-histogram-year.png"></p> - -<p>En kan i histogrammet se at effekten av manglende registrering - eller fornying av registrering er at mange filmer gitt ut i USA før - 1978 er allemannseie i dag. I tillegg kan en se at det finnes flere - filmer gitt ut de siste årene med bruksvilkår som tillater deling, - muligens på grunn av fremveksten av - <a href="https://creativecommons.org/">Creative - Commons</a>-bevegelsen..</p> - -<p>For maskinell analyse av katalogene har jeg laget et lite program - som kobler seg til bittorrent-katalogene som brukes av ulike Popcorn - Time-varianter og laster ned komplett liste over filmer i - katalogene, noe som bekrefter at det er mulig å hente ned komplett - liste med alle filmtitler som er tilgjengelig. Jeg har sett på fire - bittorrent-kataloger. Den ene brukes av klienten tilgjengelig fra - www.popcorntime.sh og er navngitt 'sh' i dette dokumentet. Den - andre brukes i følge dokument 09,12 av klienten tilgjengelig fra - popcorntime.ag og popcorntime.sh og er navngitt 'yts' i dette - dokumentet. Den tredje brukes av websidene tilgjengelig fra - popcorntime-online.tv og er navngitt 'apidomain' i dette dokumentet. - Den fjerde brukes av klienten tilgjenglig fra popcorn-time.to i - følge dokument 09,12, og er navngitt 'ukrfnlge' i dette - dokumentet.</p> - -<p>Metoden Økokrim legger til grunn skriver i sitt punkt fire at - skjønn er en egnet metode for å finne ut om en film kan lovlig deles - på Internett eller ikke, og sier at det ble «vurdert hvorvidt det - var rimelig å forvente om at verket var vernet av copyright». For - det første er det ikke nok å slå fast om en film er «vernet av - copyright» for å vite om det er lovlig å dele den på Internett eller - ikke, da det finnes flere filmer med opphavsrettslige bruksvilkår - som tillater deling på Internett. Eksempler på dette er Creative - Commons-lisensierte filmer som Citizenfour fra 2014 og Sintel fra - 2010. I tillegg til slike finnes det flere filmer som nå er - allemannseie (public domain) på grunn av manglende registrering - eller fornying av registrering selv om både regisør, - produksjonsselskap og distributør ønsker seg vern. Eksempler på - dette er Plan 9 from Outer Space fra 1959 og Night of the Living - Dead fra 1968. Alle filmer fra USA som var allemannseie før - 1989-03-01 forble i det fri da Bern-konvensjonen, som tok effekt i - USA på det tidspunktet, ikke ble gitt tilbakevirkende kraft. Hvis - det er noe - <a href="http://www.latimes.com/local/lanow/la-me-ln-happy-birthday-song-lawsuit-decision-20150922-story.html">historien - om sangen «Happy birthday»</a> forteller oss, der betaling for bruk - har vært krevd inn i flere tiår selv om sangen ikke egentlig var - vernet av åndsverksloven, så er det at hvert enkelt verk må vurderes - nøye og i detalj før en kan slå fast om verket er allemannseie eller - ikke, det holder ikke å tro på selverklærte rettighetshavere. Flere - eksempel på verk i det fri som feilklassifiseres som vernet er fra - dokument 09,18, som lister opp søkeresultater for klienten omtalt - som popcorntime.sh og i følge notatet kun inneholder en film (The - Circus fra 1928) som under tvil kan antas å være allemannseie.</p> - -<p>Ved rask gjennomlesning av dokument 09,18, som inneholder - skjermbilder fra bruk av en Popcorn Time-variant, fant jeg omtalt - både filmen «The Brain That Wouldn't Die» fra 1962 som er - <a href="https://archive.org/details/brain_that_wouldnt_die">tilgjengelig - fra Internett-arkivet</a> og som - <a href="https://en.wikipedia.org/wiki/List_of_films_in_the_public_domain_in_the_United_States">i - følge Wikipedia er allemannseie i USA</a> da den ble gitt ut i - 1962 uten 'copyright'-merking, og filmen «God’s Little Acre» fra - 1958 <a href="https://en.wikipedia.org/wiki/God%27s_Little_Acre_%28film%29">som - er lagt ut på Wikipedia</a>, der det fortelles at - sort/hvit-utgaven er allemannseie. Det fremgår ikke fra dokument - 09,18 om filmen omtalt der er sort/hvit-utgaven. Av - kapasitetsårsaker og på grunn av at filmoversikten i dokument 09,18 - ikke er maskinlesbart har jeg ikke forsøkt å sjekke alle filmene som - listes opp der om mot liste med filmer som er antatt lovlig kan - distribueres på Internet.</p> - -<p>Ved maskinell gjennomgang av listen med IMDB-referanser under - regnearkfanen 'Unique titles' i dokument 09.14, fant jeg i tillegg - filmen «She Wore a Yellow Ribbon» fra 1949) som nok også er - feilklassifisert. Filmen «She Wore a Yellow Ribbon» er tilgjengelig - fra Internett-arkivet og markert som allemannseie der. Det virker - dermed å være minst fire ganger så mange filmer som kan lovlig deles - på Internett enn det som er lagt til grunn når en påstår at minst - 99% av innholdet er ulovlig. Jeg ser ikke bort fra at nærmere - undersøkelser kan avdekke flere. Poenget er uansett at metodens - punkt om «rimelig å forvente om at verket var vernet av copyright» - gjør metoden upålitelig.</p> - -<p>Den omtalte målemetoden velger ut tilfeldige søketermer fra - ordlisten Dale-Chall. Den ordlisten inneholder 3000 enkle engelske - som fjerdeklassinger i USA er forventet å forstå. Det fremgår ikke - hvorfor akkurat denne ordlisten er valgt, og det er uklart for meg - om den er egnet til å få et representativt utvalg av filmer. Mange - av ordene gir tomt søkeresultat. Ved å simulerte tilsvarende søk - ser jeg store avvik fra fordelingen i katalogen for enkeltmålinger. - Dette antyder at enkeltmålinger av 100 filmer slik målemetoden - beskriver er gjort, ikke er velegnet til å finne andel ulovlig - innhold i bittorrent-katalogene.</p> - -<p>En kan motvirke dette store avviket for enkeltmålinger ved å gjøre - mange søk og slå sammen resultatet. Jeg har testet ved å - gjennomføre 100 enkeltmålinger (dvs. måling av (100x100=) 10 000 - tilfeldig valgte filmer) som gir mindre, men fortsatt betydelig - avvik, i forhold til telling av filmer pr år i hele katalogen.</p> - -<p>Målemetoden henter ut de fem øverste i søkeresultatet. - Søkeresultatene er sortert på antall bittorrent-klienter registrert - som delere i katalogene, hvilket kan gi en slagside mot hvilke - filmer som er populære blant de som bruker bittorrent-katalogene, - uten at det forteller noe om hvilket innhold som er tilgjengelig - eller hvilket innhold som deles med Popcorn Time-klienter. Jeg har - forsøkt å måle hvor stor en slik slagside eventuelt er ved å - sammenligne fordelingen hvis en tar de 5 nederste i søkeresultatet i - stedet. Avviket for disse to metodene for endel kataloger er godt - synlig på histogramet. Her er histogram over filmer funnet i den - komplette katalogen (grønn strek), og filmer funnet ved søk etter - ord i Dale-Chall. Grafer merket 'top' henter fra de 5 første i - søkeresultatet, mens de merket 'bottom' henter fra de 5 siste. En - kan her se at resultatene påvirkes betydelig av hvorvidt en ser på - de første eller de siste filmene i et søketreff.</p> - -<p align="center"> - <img width="40%" src="http://people.skolelinux.org/pere/blog/images/2017-12-20-histogram-year-sh-top.png"/> - <img width="40%" src="http://people.skolelinux.org/pere/blog/images/2017-12-20-histogram-year-sh-bottom.png"/> - <br> - <img width="40%" src="http://people.skolelinux.org/pere/blog/images/2017-12-20-histogram-year-yts-top.png"/> - <img width="40%" src="http://people.skolelinux.org/pere/blog/images/2017-12-20-histogram-year-yts-bottom.png"/> - <br> - <img width="40%" src="http://people.skolelinux.org/pere/blog/images/2017-12-20-histogram-year-ukrfnlge-top.png"/> - <img width="40%" src="http://people.skolelinux.org/pere/blog/images/2017-12-20-histogram-year-ukrfnlge-bottom.png"/> - <br> - <img width="40%" src="http://people.skolelinux.org/pere/blog/images/2017-12-20-histogram-year-apidomain-top.png"/> - <img width="40%" src="http://people.skolelinux.org/pere/blog/images/2017-12-20-histogram-year-apidomain-bottom.png"/> -</p> - -<p>Det er verdt å bemerke at de omtalte bittorrent-katalogene ikke er - laget for bruk med Popcorn Time. Eksempelvis tilhører katalogen - YTS, som brukes av klientet som ble lastes ned fra popcorntime.sh, - et selvstendig fildelings-relatert nettsted YTS.AG med et separat - brukermiljø. Målemetoden foreslått av Økokrim måler dermed ikke - (u)lovligheten rundt bruken av Popcorn Time, men (u)lovligheten til - innholdet i disse katalogene.</p> - -<hr> - -<p id="dok-09-13">Metoden fra Økokrims dokument 09,13 i straffesaken -om DNS-beslag.</p> - -<p><strong>1. Evaluation of (il)legality</strong></p> - -<p><strong>1.1. Methodology</strong> - -<p>Due to its technical configuration, Popcorn Time applications don't -allow to make a full list of all titles made available. In order to -evaluate the level of illegal operation of PCT, the following -methodology was applied:</p> - -<ol> - - <li>A random selection of 50 keywords, greater than 3 letters, was - made from the Dale-Chall list that contains 3000 simple English - words1. The selection was made by using a Random Number - Generator2.</li> - - <li>For each keyword, starting with the first randomly selected - keyword, a search query was conducted in the movie section of the - respective Popcorn Time application. For each keyword, the first - five results were added to the title list until the number of 100 - unique titles was reached (duplicates were removed).</li> - - <li>For one fork, .CH, insufficient titles were generated via this - approach to reach 100 titles. This was solved by adding any - additional query results above five for each of the 50 keywords. - Since this still was not enough, another 42 random keywords were - selected to finally reach 100 titles.</li> - - <li>It was verified whether or not there is a reasonable expectation - that the work is copyrighted by checking if they are available on - IMDb, also verifying the director, the year when the title was - released, the release date for a certain market, the production - company/ies of the title and the distribution company/ies.</li> - -</ol> - -<p><strong>1.2. Results</strong></p> - -<p>Between 6 and 9 June 2016, four forks of Popcorn Time were -investigated: popcorn-time.to, popcorntime.ag, popcorntime.sh and -popcorntime.ch. An excel sheet with the results is included in -Appendix 1. Screenshots were secured in separate Appendixes for each -respective fork, see Appendix 2-5.</p> - -<p>For each fork, out of 100, de-duplicated titles it was possible to -retrieve data according to the parameters set out above that indicate -that the title is commercially available. Per fork, there was 1 title -that presumably falls within the public domain, i.e. the 1928 movie -"The Circus" by and with Charles Chaplin.</p> - -<p>Based on the above it is reasonable to assume that 99% of the movie -content of each fork is copyright protected and is made available -illegally.</p> - -<p>This exercise was not repeated for TV series, but considering that -besides production companies and distribution companies also -broadcasters may have relevant rights, it is reasonable to assume that -at least a similar level of infringement will be established.</p> - -<p>Based on the above it is reasonable to assume that 99% of all the -content of each fork is copyright protected and are made available -illegally.</p> + Using the Kodi API to play Youtube videos + http://people.skolelinux.org/pere/blog/Using_the_Kodi_API_to_play_Youtube_videos.html + http://people.skolelinux.org/pere/blog/Using_the_Kodi_API_to_play_Youtube_videos.html + Sun, 2 Sep 2018 23:40:00 +0200 + <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> - Cura, the nice 3D print slicer, is now in Debian Unstable - http://people.skolelinux.org/pere/blog/Cura__the_nice_3D_print_slicer__is_now_in_Debian_Unstable.html - http://people.skolelinux.org/pere/blog/Cura__the_nice_3D_print_slicer__is_now_in_Debian_Unstable.html - Sun, 17 Dec 2017 07:00:00 +0100 - <p>After several months of working and waiting, I am happy to report -that the nice and user friendly 3D printer slicer software Cura just -entered Debian Unstable. It consist of five packages, -<a href="https://tracker.debian.org/pkg/cura">cura</a>, -<a href="https://tracker.debian.org/pkg/cura-engine">cura-engine</a>, -<a href="https://tracker.debian.org/pkg/libarcus">libarcus</a>, -<a href="https://tracker.debian.org/pkg/fdm-materials">fdm-materials</a>, -<a href="https://tracker.debian.org/pkg/libsavitar">libsavitar</a> and -<a href="https://tracker.debian.org/pkg/uranium">uranium</a>. The last -two, uranium and cura, entered Unstable yesterday. This should make -it easier for Debian users to print on at least the Ultimaker class of -3D printers. My nearest 3D printer is an Ultimaker 2+, so it will -make life easier for at least me. :)</p> - -<p>The work to make this happen was done by Gregor Riepl, and I was -happy to assist him in sponsoring the packages. With the introduction -of Cura, Debian is up to three 3D printer slicers at your service, -Cura, Slic3r and Slic3r Prusa. If you own or have access to a 3D -printer, give it a go. :)</p> - -<p>The 3D printer software is maintained by the 3D printer Debian -team, flocking together on the -<a href="http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/3dprinter-general">3dprinter-general</a> -mailing list and the -<a href="irc://irc.debian.org/#debian-3dprinting">#debian-3dprinting</a> -IRC channel.</p> - -<p>The next step for Cura in Debian is to update the cura package to -version 3.0.3 and then update the entire set of packages to version -3.1.0 which showed up the last few days.</p> + Software created using taxpayers’ money should be Free Software + http://people.skolelinux.org/pere/blog/Software_created_using_taxpayers__money_should_be_Free_Software.html + http://people.skolelinux.org/pere/blog/Software_created_using_taxpayers__money_should_be_Free_Software.html + Thu, 30 Aug 2018 13:50:00 +0200 + <p>It might seem obvious that software created using tax money should +be available for everyone to use and improve. Free Software +Foundation Europe recentlystarted a campaign to help get more people +to understand this, and I just signed the petition on +<a href="https://publiccode.eu/">Public Money, Public Code</a> to help +them. I hope you too will do the same.</p>