My movie playing setup involve Kodi, -OpenELEC (probably soon to be -replaced with LibreELEC) and an -Infocus IN76 video projector. My projector can be controlled via both -a infrared remote controller, and a RS-232 serial line. The vendor of -my projector, InFocus, had been -sensible enough to document the serial protocol in its user manual, so -it is easily available, and I used it some years ago to write -a -small script to control the projector. For a while now, I longed -for a setup where the projector was controlled by Kodi, for example in -such a way that when the screen saver went on, the projector was -turned off, and when the screen saver exited, the projector was turned -on again.
- -A few days ago, with very good help from parts of my family, I -managed to find a Kodi Add-on for controlling a Epson projector, and -got in touch with its author to see if we could join forces and make a -Add-on with support for several projectors. To my pleasure, he was -positive to the idea, and we set out to add InFocus support to his -add-on, and make the add-on suitable for the official Kodi add-on -repository.
- -The Add-on is now working (for me, at least), with a few minor -adjustments. The most important change I do relative to the master -branch in the github repository is embedding the -pyserial module in -the add-on. The long term solution is to make a "script" type -pyserial module for Kodi, that can be pulled in as a dependency in -Kodi. But until that in place, I embed it.
- -The add-on can be configured to turn on the projector when Kodi -starts, off when Kodi stops as well as turn the projector off when the -screensaver start and on when the screesaver stops. It can also be -told to set the projector source when turning on the projector. - -
If this sound interesting to you, check out -the -project github repository. Perhaps you can send patches to -support your projector too? As soon as we find time to wrap up the -latest changes, it should be available for easy installation using any -Kodi instance.
- -For future improvements, I would like to add projector model -detection and the ability to adjust the brightness level of the -projector from within Kodi. We also need to figure out how to handle -the cooling period of the projector. My projector refuses to turn on -for 60 seconds after it was turned off. This is not handled well by -the add-on at the moment.
+ +As part of my involvement in +the Nikita +archive API project, 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 my +notmuch email database, 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 +an +official MIME type 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.
+ +To try to get one official MIME type for these files, I've brought +up the topic on +the +media-types mailing list. 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?
As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -79,7 +55,7 @@ activities, please send Bitcoin donations to my address
@@ -87,71 +63,79 @@ activities, please send Bitcoin donations to my addressI VHS-kassettenes -tid var det rett frem å ta vare på et TV-program en ønsket å kunne se -senere, uten å være avhengig av at programmet ble sendt på nytt. -Kanskje ønsket en å se programmet på hytten der det ikke var -TV-signal, eller av andre grunner ha det tilgjengelig for fremtidig -fornøyelse. Dette er blitt vanskeligere med introduksjon av -digital-TV og webstreaming, der opptak til harddisk er utenfor de -flestes kontroll hvis de bruker ufri programvare og bokser kontrollert -av andre. Men for NRK her i Norge, finnes det heldigvis flere fri -programvare-alternativer, som jeg har -skrevet -om -før. -Så lenge kilden for nedlastingen er lovlig lagt ut på nett (hvilket -jeg antar NRK gjør), så er slik lagring til privat bruk også lovlig i -Norge.
- -Sist jeg så på saken, i 2016, nevnte jeg at -youtube-dl ikke kunne -bake undertekster fra NRK inn i videofilene, og at jeg derfor -foretrakk andre alternativer. Nylig oppdaget jeg at dette har endret -seg. Fordelen med youtube-dl er at den er tilgjengelig direkte fra -Linux-distribusjoner som Debian -og Ubuntu, slik at en slipper å -finne ut selv hvordan en skal få dem til å virke.
- -For å laste ned et NRK-innslag med undertekster, og få den norske -underteksten pakket inn i videofilen, så kan følgende kommando -brukes:
+ +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 +Speaker +Testing and Analysis describing how to test speakers, and it listing +several software options, among them +AUDio MEasurement +System (AUDMES). 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 +Understanding +Speaker Specifications and Frequency Response and an article from +ecoustics on +Understanding +Speaker Frequency Response, 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.
+ +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.
+ +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 +Free Hearing Test +Software, 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.
+ +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 +include in Debian? 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 +REW, but I want something +that can be developed also when the vendor looses interest.
--youtube-dl --write-sub --sub-format ttml \ - --convert-subtitles srt --embed-subs \ - https://tv.nrk.no/serie/ramm-ferdig-gaa/MUHU11000316/27-04-2018 -- -
URL-eksemplet er dagens toppsak på tv.nrk.no. Resultatet er en -MP4-fil med filmen og undertekster som kan spilles av med VLC. Merk -at VLC ikke viser frem undertekster før du aktiverer dem. For å gjøre -det, høyreklikk med musa i fremviservinduet, velg menyvalget for -undertekst og så norsk språk. Jeg testet også '--write-auto-sub', -men det kommandolinjeargumentet ser ikke ut til å fungere, så jeg -endte opp med settet med argumentlisten over, som jeg fant i en -feilrapport i youtube-dl-prosjektets samling over feilrapporter.
- -Denne støtten i youtube-dl gjør det svært enkelt å lagre -NRK-innslag, det være seg nyheter, filmer, serier eller dokumentater, -for å ha dem tilgjengelig for fremtidig referanse og bruk, uavhengig -av hvor lenge innslagene ligger tilgjengelig hos NRK. Så får det ikke -hjelpe at NRKs jurister mener at det er -vesensforskjellig -å legge tilgjengelig for nedlasting og for streaming, når det rent -teknisk er samme sak.
- -Programmet youtube-dl støtter også en rekke andre nettsteder, se -prosjektoversikten for -en -komplett liste.
+As usual, if you use Bitcoin and want to show your support of my +activities, please send Bitcoin donations to my address +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.
VG, -Dagbladet -og -NRK -melder i dag at flertallet i Familie- og kulturkomiteen på Stortinget -har bestemt seg for å introdusere en ny sensurinfrastruktur i Norge. -Fra før har Norge en «frivillig» sensurinfrastruktur basert på -DNS-navn, der de største ISP-ene basert på en liste med DNS-navn -forgifter DNS-svar og omdirigerer til et annet IP-nummer enn det som -ligger i DNS. Nå kommer altså IP-basert omdirigering i tillegg. Når -infrastrukturen er på plass, er sensur av IP-adresser redusert et -spørsmål om hvilke IP-nummer som skal blokkeres. Listen over -IP-adresser vil naturligvis endre seg etter hvert som myndighetene -endrer seg. Det er ingen betryggende tanke.
+ +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 +NRK, Linux distributors like +Debian and +Ubuntu, and of course the +Internet archive. + +
Almost a month ago +a new +package adding Bittorrent support to VLC became available in +Debian testing and unstable. To test it, simply install it like +this:
+ ++apt install vlc-plugin-bittorrent ++ +
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 +Internet +Archive page with movies using a web browser and click on the +torrent link to start streaming the movie.
+ +Note, there is still some misfeatures in the plugin. One is the +fact that it will hang and +block VLC +from exiting until the torrent streaming starts. Another is the +fact that it +will pick +and play a random file in a multi file torrent. 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.
+ +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.
+ +As usual, if you use Bitcoin and want to show your support of my +activities, please send Bitcoin donations to my address +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.
Brevpost er beskyttet av straffelovens bestemmelse som gjør det -kriminelt å åpne andres brev. Dette følger av (ny) straffelovs -§ 205 -(Krenkelse av retten til privat kommunikasjon), som sier at «Med -bot eller fengsel inntil 2 år straffes den som uberettiget ... c) -åpner brev eller annen lukket skriftlig meddelelse som er adressert -til en annen, eller på annen måte skaffer seg uberettiget tilgang til -innholdet.» Dette gjelder såvel postbud som alle andre som har -befatning med brevet etter at avsender har befatning med et lukket -brev. Tilsvarende står også tidligere utgaver av den norske -straffeloven.
- -Når en registrerer seg på usikre digitale postkasseløsningene, som -f.eks. Digipost og e-Boks, og slik tar disse i bruk, så gir en de som -står bak løsningene tillatelse til å åpne sine brev. Dette er -nødvendig for at innholdet i digital post skal kunne vises frem til -mottaker via tjenestens websider. Dermed gjelder ikke straffelovens -paragraf om forbud mot å åpne brev, da tilgangen ikke lenger er -uberettiget. En gir altså fremmede tilgang til å lese sin -korrespondanse. I tillegg vil bruk av slike usikre digitale -postbokser føre til at det blir registrert når du leser brevene, hvor -du befinner deg (vha. tilkoblingens IP-adresse), hvilket utstyr du -bruker og en rekke annen personlig informasjon som ikke er -tilgjengelig når papirpost brukes. Jeg foretrekker at det er -lovmessig beskyttelse av min korrespondanse, som jo inneholder privat -og personlig informasjon. Det bidrar til litt bedre vern av personlig -integritet i dagens norske samfunn.
+ +This morning, the new release of the +Nikita +Noark 5 core project was +announced +on the project mailing list. 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): + +
-
+
- Fix typos in REL names +
- Tidy up error message reporting +
- Fix issue where we used Integer.valueOf(), not Integer.getInteger() +
- Change some String handling to StringBuffer +
- Fix error reporting +
- Code tidy-up +
- Fix issue using static non-synchronized SimpleDateFormat to avoid + race conditions +
- Fix problem where deserialisers were treating integers as strings +
- Update methods to make them null-safe +
- Fix many issues reported by coverity +
- Improve equals(), compareTo() and hash() in domain model +
- Improvements to the domain model for metadata classes +
- Fix CORS issues when downloading document +
- Implementation of case-handling with registryEntry and document upload +
- Better support in Javascript for OPTIONS +
- Adding concept description of mail integration +
- Improve setting of default values for GET on ny-journalpost +
- Better handling of required values during deserialisation +
- Changed tilknyttetDato (M620) from date to dateTime +
- Corrected some opprettetDato (M600) (de)serialisation errors. +
- Improve parse error reporting. +
- Started on OData search and filtering. +
- Added Contributor Covenant Code of Conduct to project. +
- Moved repository and project from Github to Gitlab. +
- Restructured repository, moved code into src/ and web/. +
- Updated code to use Spring Boot version 2. +
- Added support for OAuth2 authentication. +
- Fixed several bugs discovered by Coverity. +
- Corrected handling of date/datetime fields. +
- Improved error reporting when rejecting during deserializatoin. +
- Adjusted default values provided for ny-arkivdel, ny-mappe, + ny-saksmappe, ny-journalpost and ny-dokumentbeskrivelse. +
- Several fixes for korrespondansepart*. +
- Updated web GUI:
+
-
+
- Now handle both file upload and download. +
- Uses new OAuth2 authentication for login. +
- Forms now fetches default values from API using GET. +
- Added RFC 822 (email), TIFF and JPEG to list of possible file formats. +
+
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(-).
+ +If free and open standardized archiving API sound interesting to +you, please contact us on IRC +(#nikita on +irc.freenode.net) or email +(nikita-noark +mailing list).
+ +As usual, if you use Bitcoin and want to show your support of my +activities, please send Bitcoin donations to my address +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.
The leaders of the worlds have started to congratulate the -re-elected Russian head of state, and this causes some criticism. I -am though a little fascinated by a comment from USA senator John McCain, -sited -by The Hill and others: - -
-- -"An American president does not lead the Free World by -congratulating dictators on winning sham elections."
-
While I totally agree with the senator here, the way the quote is -phrased make me suspect that he is unaware of the simple fact that USA -have not lead the Free World since at least before its government -kidnapped a -completely innocent Canadian citizen in transit on his way home to -Canada via John F. Kennedy International Airport in September 2002 and -sent him to be tortured in Syria for a year.
- -USA might be running ahead, but the path they are taking is not the -one taken by any Free World.
+ +I have earlier covered the basics of trusted timestamping using the +'openssl ts' client. See blog post for +2014, +2016 +and +2017 +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 +the +rfc3161 library 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 +the rfc3161ng library, +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 +available in +Debian, and a few days ago it entered Debian unstable and testing.
+ +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:
+ ++#!/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() ++ +
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.
+ +As usual, if you use Bitcoin and want to show your support of my +activities, please send Bitcoin donations to my address +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.
So, Cambridge Analytica is getting some well deserved criticism for -(mis)using information it got from Facebook about 50 million people, -mostly in the USA. What I find a bit surprising, is how little -criticism Facebook is getting for handing the information over to -Cambridge Analytica and others in the first place. And what about the -people handing their private and personal information to Facebook? -And last, but not least, what about the government offices who are -handing information about the visitors of their web pages to Facebook? -No-one who looked at the terms of use of Facebook should be surprised -that information about peoples interests, political views, personal -lifes and whereabouts would be sold by Facebook.
- -What I find to be the real scandal is the fact that Facebook is -selling your personal information, not that one of the buyers used it -in a way Facebook did not approve when exposed. It is well known that -Facebook is selling out their users privacy, but a scandal -nevertheless. Of course the information provided to them by Facebook -would be misused by one of the parties given access to personal -information about the millions of Facebook users. Collected -information will be misused sooner or later. The only way to avoid -such misuse, is to not collect the information in the first place. If -you do not want Facebook to hand out information about yourself for -the use and misuse of its customers, do not give Facebook the -information.
- -Personally, I would recommend to completely remove your Facebook -account, and take back some control of your personal information. -According -to The Guardian, it is a bit hard to find out how to request -account removal (and not just 'disabling'). You need to -visit -a specific Facebook page and click on 'let us know' on that page -to get to the -real account deletion screen. Perhaps something to consider? I -would not trust the information to really be deleted (who knows, -perhaps NSA, GCHQ and FRA already got a copy), but it might reduce the -exposure a bit.
- -If you want to learn more about the capabilities of Cambridge -Analytica, I recommend to see the video recording of the one hour talk -Paul-Olivier Dehaye gave to NUUG last april about - -Data collection, psychometric profiling and their impact on -politics.
- -And if you want to communicate with your friends and loved ones, -use some end-to-end encrypted method like -Signal or -Ring, and stop sharing your private -messages with strangers like Facebook and Google.
+ +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 +the Ubuntu UPD8 PPA 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.
+ +I first created ~/googledrive, entered the directory and +ran 'grive -a' to authenticate the machine/user. Next, I +created a autostart hook in ~/.config/autostart/grive.desktop +to start the sync when the user log in:
+ ++ ++[Desktop Entry] +Name=Google drive autosync +Type=Application +Exec=/home/user/bin/grive-sync +
Finally, I wrote the ~/bin/grive-sync script to sync +~/googledrive/ with the files in Google Drive.
+ ++ ++#!/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:%" +
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.
+ +As usual, if you use Bitcoin and want to show your support of my +activities, please send Bitcoin donations to my address +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.
I går kom det nok et argument for å holde seg unna det norske -helsevesenet. Da annonserte et stortingsflertall, bestående av Høyre, -Arbeiderpartiet, Fremskrittspartiet og Venstre, at de går inn for å -samle inn og lagre DNA-prøver fra hele befolkningen i Norge til evig -tid. Endringen gjelder innsamlede blodprøver fra nyfødte i Norge. -Det vil dermed ta litt tid før en har hele befolkningen, men det er -dit vi havner gitt nok tid. I dag er det nesten hundre prosent -oppslutning om undersøkelsen som gjøres like etter fødselen, på -bakgrunn av blodprøven det er snakk om å lagre, for å oppdage endel -medfødte sykdommer. Blodprøven lagres i dag i inntil seks år. -Stortingets -flertallsinnstilling er at tidsbegrensingen skal fjernes, og mener -at tidsubegrenset lagring ikke vil påvirke oppslutningen om -undersøkelsen.
- -Datatilsynet har ikke akkurat applaudert forslaget:
- -- -- -«Datatilsynet mener forslaget ikke i tilstrekkelig grad - synliggjør hvilke etiske og personvernmessige utfordringer som må - diskuteres før en etablerer en nasjonal biobank med blodprøver fra - hele befolkningen.»
- -
Det er flere historier om hvordan innsamlet biologisk materiale har -blitt brukt til andre formål enn de ble innsamlet til, og historien om -folkehelseinstituttets -lagring på vegne av politiet (Kripos) av innsamlet biologisk materiale -og DNA-informasjon i strid med loven viser at en ikke kan være -trygg på at lover og intensjoner beskytter de som blir berørt mot -misbruk av slik privat og personlig informasjon.
- -Det er verdt å merke seg at det kan forskes på de innsamlede -blodprøvene uten samtykke fra den det gjelder (eller foreldre når det -gjelder barn), etter en lovendring for en stund tilbake, med mindre -det er sendt inn skjema der en reserverer seg mot forskning uten -samtykke. Skjemaet er tilgjengelig fra -folkehelseinstituttets -websider, og jeg anbefaler, uavhengig av denne saken, varmt alle å -sende inn skjemaet for å dokumentere hvor mange som ikke synes det er -greit å fjerne krav om samtykke.
- -I tillegg bør en kreve destruering av alt biologisk materiale som -er samlet inn om en selv, for å redusere eventuelle negative -konsekvenser i fremtiden når materialet kommer på avveie eller blir -brukt uten samtykke, men det er så vidt jeg vet ikke noe system for -dette i dag.
- -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 +
+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.
+ +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 +github.
+ +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: + ++ ++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() +
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:
+ ++ ++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 +
The exchange order book is tracked in addition to the best buy/sell +price, for those that need to know the details.
+ +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:
+ ++ ++ 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 +
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.
+ +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.
+ +As usual, if you use Bitcoin and want to show your support of my +activities, please send Bitcoin donations to my address 15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.
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.
- -Yesterday, after many months of hard work by several volunteer -translators, the first draft of a Norwegian Bokmål edition of the book -Made with Creative Commons from 2017 -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.
- -The whole book project started when -Gunnar Wolf announced 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 -Free -Culture and -The Debian -Administrator's Handbook 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.
- -The book itself originates as a manuscript on Google Docs, is -downloaded as ODT from there and converted to Markdown using pandoc. -The Markdown is 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.
- -The translation is conducted using -the -Weblate web based translation system. Please have a look there -and get in touch if you would like to help out with proof -reading. :)
+ +Back in February, I got curious to see +if +VLC now supported Bittorrent streaming. 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 standalone plugin +for VLC 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 +entered +Debian a few hours ago, and should be available in Debian/Unstable +tomorrow, and Debian/Testing in a few days.
+ +With the vlc-plugin-bittorrent package installed you should be able +to stream videos using a simple call to
+ ++ +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. :) + ++vlc https://archive.org/download/TheGoat/TheGoat_archive.torrent +
I would love to get help maintaining this package. Get in touch if +you are interested.
As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -450,7 +675,7 @@ activities, please send Bitcoin donations to my address
@@ -458,45 +683,26 @@ activities, please send Bitcoin donations to my addressToday 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: - -
- -While I am happy to see Debian used more places, some details of the -content on the screen worries me.
- -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 Debian -version history on Wikpedia. This mean the system is running -around 10 year old code, with no security fixes from the vendor for -many years.
- -This is not the first time I discover the Oslo subway company, -Ruter, running outdated software. In 2012, -I -discovered the ticket vending machines were running Windows 2000, -and this was -still -the case in 2016. 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.
- -The photo is made available under the license terms -Creative Commons -4.0 Attribution International (CC BY 4.0).
+ +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.
+ ++ +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
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. :)
As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -505,7 +711,7 @@ activities, please send Bitcoin donations to my address
@@ -513,39 +719,19 @@ activities, please send Bitcoin donations to my addressSurprising 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. -The upstream -project still exist, though, and up until today, the upstream -source was available from Savannah via subversion. I am happy to -report that this just changed.
- -The upstream source is now in Git, and consist of three -repositories:
- - - -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.
- -As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.
+ +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 +Public Money, Public Code to help +them. I hope you too will do the same.