X-Git-Url: http://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/aaf3a8d6ac3f87b3060fda22f11cb474d2e37af0..33aa1c0600c2b3b8750c5daea87cdcd8625de166:/blog/index.html diff --git a/blog/index.html b/blog/index.html index 940ce3ba7d..3ee1ee9f09 100644 --- a/blog/index.html +++ b/blog/index.html @@ -20,67 +20,50 @@
-
Web browser integration of VLC with Bittorrent support
-
21st October 2018
-

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 og 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.

+ +
16th April 2020
+

Jeg er blitt spurt hva jeg synes om lansering av smittestopp-appen, +overvåkningsløsningen lansert av Folkehelseinstituttet, +Simula-senteret og Regjeringen i dag, fulgt av klare trusler fra +regjeringen om konsekvenser hvis befolkningen ikke tar den i bruk. +Rekker ikke skrive noe fyldig om temaet, men det er klart for meg at +den utraderer retten til privatliv samt utgjør en personlig +sikkerhetsrisiko for alle som tar den i bruk. Bare det er nok til at +det fremstår som en svert dårlig ide å bli med på denne "dugnaden". +Det finnes andre og bedre tilnærminger enn den valgt av FHI. Har de +valgt den for å sikre seg nok et datasett i den fremtidige +ehelse-portalen? Potensialet for misbruk av informasjon samlet inn av +appen er for stort, effekten på neste krise for klar og gevinsten for +liten.

+ +

For å si det med forhenværende leder i Datatilsynet, Georg Apenes, +som skrev i en kronikk den gang Datatilsynet vernet +privatsfæren at +«SENTRALT +I en liberal forestillingsverden finner vi aksept av borgerens rett +til å kunne velge å være i fred; å være u-iakttatt, uregistrert og +anonym». Det er ikke uten grunn han startet kronikken med +«Personvern et fremmedord i enkelte av de statsorganene som samler +inn, oppbevarer og bruker personopplysninger». Der har nok +statsorganene bare blitt dårligere på 13 år.

+ +

Det er jo også verdt å merke seg at personvernrådet i EU (EDPB) +mener smittestopp-appen +opererer +i strid med prinsippet om dataminimering. Også de ser at det +finnes mye bedre måter å gjøre dette på.

+ + +

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 +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: english, verkidetfri, video. + Tags: norsk, surveillance.
@@ -88,80 +71,31 @@ activities, please send Bitcoin donations to my address
- -
18th October 2018
-

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.

+ +
21st March 2020
+

Det er lenge siden jeg har sett på den norske stavekontrollen, sist +jeg skrev om temaet var i 2016, og i mellomtiden har nettstedet +no.speling.org forsvunnet, og både git-depotet på Alioth og +mailman-tjenesten som hadde epostlistene for oversettelser blitt lagt +ned. Men bokmål og nynorsk trenger fortsatt stavekontroll, så etter +et par purringer fra en som har lyst til å forbedre stavekontrollen +har jeg endelig fått lagt ut ny offentlig kopi av git-depotet. Jeg +valgte gitlab foran github.. Siste utgave av stavekontrollen kan +hentes ned fra +https://gitlab.com/norwegian-language-tools/spell-norwegian. +Ingen ny versjon i denne omgang altså, bare et nytt sted å samle +forbedringer til den frie norske stavekontrollen. :) + +

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 +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

@@ -169,102 +103,95 @@ activities, please send Bitcoin donations to my address
- -
8th October 2018
-

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.

+ +
2nd March 2020
+

Today, after many months of development, a new release of +Nikita +Noark 5 core project was finally +announced +on the project mailing list. The Nikita 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 0.5 +since version 0.4, see the email link above for links to a demo +site:

+ +
    + +
  • Updated to Noark 5 versjon 5.0 API specification. +
      +
    • Changed formatting of _links from [] to {} to match IETF draft + on JSON HAL.
    • +
    • Merged Registrering og Basisregistrering in version 4 to + combined Registrering.
    • +
    • DokumentObjekt is now subtype of ArkivEnhet.
    • +
    • Introducing new entity Arkivnotat.
    • +
    • Changed all relation keys to use /v5/ instead of /v4/.
    • +
    • Corrected to use new official relation keys when possible.
    • +
    • Renamed Sakspart to Part and connect it to Mappe, Registrering + and Dokumentbeskrivelse instead of only Saksmappe.
    • +
    • Moved Korrespondansepart connection from Journalpost to + Registrering.
    • +
    • Moved Part and Korrespondansepart from package sakarkiv to + arkivstruktur.
    • +
    • Renamed presedensstatus to presedensStatus.
    • +
    • Use new JSON content-type "application/vnd.noark5+json".
    • +
    • Updated prepopulated format list to use PRONOM codes.
    • +
    • Implemented endpoint for system information.
    • +
    • Implemented national identifiers for both file and record.
    • +
    • Implemented comments.
    • +
    • implemented sign off.
    • +
    • implemented conversion.
    • +
  • +
  • Improved/implemented OData search and paging support for more entities.
  • +
  • No longer exposes attribute Dokumentobjekt.referanseDokumentfil, + one should use the relation in _links instead.
  • +
  • Corrected relation keys under + https://rel.arkivverket.no/noark5/v5/api/administrasjon/, replacing + 'administrasjon' with 'admin'.
  • +
  • Fixed several security and stability issues discovered by Coverity.
  • +
  • Corrected handling ETag errors, now return code 409.
  • +
  • Improved handling of Kryssreferanse.
  • +
  • Changed internal database model to use UUID/SystemID as primary keys + in tables.
  • +
  • Changed internal database table names to use package prefix.
  • +
  • Changed time zone handling for date and datetime attributes, to be + more according to the new definition in the API specification.
  • +
  • Change revoke-token to only drop token on POST requests, not GET.
  • +
  • Updated to newer Spring version.
  • +
  • Changed primary key and URL component for metadata code lists to + use the 'kode' value instead of a SystemID.
  • +
  • Corrected implementation of Part and Sakspart.
  • +
  • Changed instance lists with subtypes (like .../registrering/ and + .../mappe/) to include the attributes and _links entries for the + subtype in the supertype lists.
  • +
  • Adjusted _links relations to make it possible to figure out the + entity of an instance using the self->href->relation key lookup + method.
  • +
  • Fixed several end points to make sure GET, PUT, POST and DELETE + match each other.
  • +
  • Updated DELETE endpoints to work with UUID based entity + identifiers.
  • +
  • Restructured code to use more common URL related constants in entry + point values and replace @RequestMapping with method specific + annotations.
  • +
  • Added first unit test code.
  • +
  • Updated web GUI to work with the updated API.
  • +
  • Changed integer fields, enforce them as numeric.
  • +
  • Rewrote and simplify metadata handling to use common service and + controller code instead of duplicating for each type.
  • +
  • Implemented the remaining metadata types.
  • +
  • Changed Country list source from Wikipedia to Debian iso-codes and + updated the list of Countries.
  • +
  • Many many corrections and improvements.
  • + +
+ +

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 @@ -273,7 +200,7 @@ activities, please send Bitcoin donations to my address

@@ -281,59 +208,31 @@ activities, please send Bitcoin donations to my address
- -
4th October 2018
-

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.

+ +
27th February 2020
+

On Tuesday, two scietific articles we have been working on for a +while, was finally accepted for publication into +Records +Management Journal. Still waiting for the assigned DOI urls to +start working, but you can have a look at the LaTeX originals here.

+ +

The first article is +"A +record-keeping approach to managing IoT-data for government +agencies" (DOI +10.1108/RMJ-09-2019-0056) by Thomas Sødring, Petter Reinholdtsen +and David Massey, and sketches some approaches for storing measurement +data (aka Internet of Things sensor data) in a archive, thus providing +a well defined mechanism for screening and deletion of the information

+ +

The second article is +"Publishing +and using record-keeping structural information in a blockchain" +(DOI +10.1108/RMJ-09-2019-0050) by Thomas Sødring, Petter Reinholdtsen +and Svein Ølnes, where we describe a way for third parties to validate +authenticity and thus improve trust in the records kept in a +archive.

As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -342,7 +241,7 @@ activities, please send Bitcoin donations to my address

@@ -350,161 +249,45 @@ activities, please send Bitcoin donations to my address
- -
29th September 2018
-

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.

+ +
5th February 2020
+

Arbeidet med å lage et godt, fritt og åpent standardisert maskinelt +grensesnitt for arkivering, med tilhørende fri +programvareimplementasjon fortsetter. Jeg snakker om +Noark +5 Tjenestegrensesnitt og +Nikita. +Siste nytt etter +seminaret +for noen dager siden, er vi i Nikita-prosjektet har fått beskjed +fra Arkivverket at det blir satt ned en redaksjon for å videreutvikle +spesifikasjonen. Redaksjonen består av Mona Danielsen og Anne Sofie +Knutsen ved arkivverket, Thomas Sødring ved OsloMet, og meg selv fra +NUUG. De to sistenevnte tar seg av de åpenbare forbedringene, mens +hele redaksjonen diskuterer tvilstilfeller. Jeg håper dette vil bidra +til at vi lykkes i å gjøre denne protokollspesifikasjonen så entydig +og klar at den vil bidra til et velfungerende marked for +arkivsystemer, og sikre at programmer som trenger å snakke med +arkivsystemet kan snakke med enhver implementasjon av +API-spesifikasjonen. Nikita er den første implementasjonen, men det +bør blir flere.

+ +

Det gjenstår riktig nok endel før vi er i mål, selv om svært mye +allerede er på plass. Med innspill og forslag til forbedringer fra +alle som vil ha et leverandøruavhengig og fullstendig +datamaskinlesbart grensesnitt til arkivet, så tror jeg vi vil +lykkes.

+ +

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 +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: bitcoin, english. + Tags: noark5, norsk, standard.
@@ -512,47 +295,35 @@ activities, please send Bitcoin donations to my address
- -
24th September 2018
-

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

- -

-vlc https://archive.org/download/TheGoat/TheGoat_archive.torrent
-

- -

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. :)

- -

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 -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+ +
26th December 2019
+

Like før julaften ble en artikkel jeg har skrevet om vedlikehold av +Noark +5 Tjenestegrensesnitt og Nikita publisert i tidsskriftet Arkivråd. +Det er basert på +min bloggpost +om samme tema som ble publisert 2019-03-11. Jeg oppdaget nettopp +at nettsiden til tidsskriftet Arkivråd er oppdatert med siste utgave, +og artikkelen dermed er tilgjengelig for alle. Du finner den i +PDF-en +til nummer 2019/3 på side 30-33. Jeg håper leserne av +tidsskriftet får lyst til å sjekke ut tjenestegrensesnittet og at +artikkelen vil gjøre det enklere for flere å bidra til en enda bedre, +klarere og mer entydig API-spesifikasjon. Det kan gjøre at +arkivsystemet +Nikita kan bli enda bedre når spesifikasjonen forbedres.

+ +

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 +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: english, verkidetfri, video. + Tags: noark5, norsk, standard.
@@ -560,35 +331,61 @@ activities, please send Bitcoin donations to my address
- -
2nd September 2018
-

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 -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+ +
25th December 2019
+

En historie som har betydd endel for meg, og som jeg av og til +tenker på når hverdagen tynger, ble så vidt jeg har klart å finne ut, +skrevet av Loren +Eiseley i +flere ulike varianter. På norsk tror jeg den går under navnet +«Gutten og sjøstjernen», og jeg fant en oversettelse av en utgave av den +hos +Quora. +Fant også en +filmatisering, men den versjonen jeg liker best fant jeg +hos +Goodreads. Jeg oversatte den utgaven til norsk i går, og har lyst +til å dele den med deg: + +

Mens jeg tok en pause fra skrivingen og vandret på en +øde strand ved daggry, så jeg en gutt i det fjerne bøye seg ned og +kaste noe mens han vandret mot meg over den endeløse stranden. Da han +kom nærmere, kunne jeg se at han kastet sjøstjerner, som var etterlatt +i sanden av tidevannet, tilbake i havet. Da han var nær nok spurte jeg +ham hvorfor han jobbet så hardt på denne merkelige oppgaven. Han sa at +solen snart ville stå opp og tørke sjøstjernene slik at de ville +dø.

+ +

Jeg sa til ham at dette var helt meningsløst. Det var kilometer på +kilometer med strand, og det lå sjøstjerner hele veien. En person +alene kunne ikke gjøre noen forskjell. Han smilte da han plukket opp +neste sjøstjerne. Mens han kastet den så langt ut i havet som han +klarte sa han, «for denne gjør det en forskjell». Jeg droppet +skrivingen og tilbrakte resten av morgenen med å kaste +sjøstjerner.

+ +

- Loren Eiseley

+
+ +

Kanskje noe du også kan ha glede av å tenke på når ting virker +håpløst?

+ +

Teksten er gjengitt og oversatt basert på utgaven på Good Read, +uten tillatelse fra noen andre enn meg selv. Jeg håper på tilgivelse, +hvis det er et problem for noen, da det er gjort i beste mening. Hvis +eventuell rettighetshaver tar kontakt vil jeg fjerne teksten og i +stedet legge ut henvendelsen der teksten kreves fjernet.

+ +

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 +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: debian, english, kodi, video. + Tags: norsk.
@@ -596,19 +393,27 @@ activities, please send Bitcoin donations to my address
- -
30th August 2018
-

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.

+ +
9th December 2019
+

Jeg hadde i dag gleden av å oppdage at en artikkel om +arkivsystemet +Nikita som vi skrev i sommer, nå er publisert i +Arkheion, fagtidsskrift for kommunial +arkivsektor. Du finner artikkelen på side 30-33 i nummer 2019/2, +PDF kan lastes ned fra nettstedet til tidsskriftet. Kanskje +publiseringen kan føre til at noen flere får øynene opp for verdien av +et åpent standardisert API for arkivering og søk i arkivet.

+ +

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 +15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. +Merk, betaling med bitcoin er ikke anonymt. :)

- Tags: english, opphavsrett. + Tags: noark5, norsk, standard.
@@ -616,62 +421,45 @@ them. I hope you too will do the same.

- -
13th August 2018
-

A few days ago, I wondered if there are any privacy respecting -health monitors and/or fitness trackers available for sale these days. -I would like to buy one, but do not want to share my personal data -with strangers, nor be forced to have a mobile phone to get data out -of the unit. I've received some ideas, and would like to share them -with you. - -One interesting data point was a pointer to a Free Software app for -Android named -Gadgetbridge. -It provide cloudless collection and storing of data from a variety of -trackers. Its -list -of supported devices is a good indicator for units where the -protocol is fairly open, as it is obviously being handled by Free -Software. Other units are reportedly encrypting the collected -information with their own public key, making sure only the vendor -cloud service is able to extract data from the unit. The people -contacting me about Gadgetbirde said they were using -Amazfit -Bip and -Xiaomi -Band 3.

- -

I also got a suggestion to look at some of the units from Garmin. -I was told their GPS watches can be connected via USB and show up as a -USB storage device with -Garmin -FIT files containing the collected measurements. While -proprietary, FIT files apparently can be read at least by -GPSBabel and the -GpxPod Nextcloud -app. It is unclear to me if they can read step count and heart rate -data. The person I talked to was using a -Garmin Forerunner -935, which is a fairly expensive unit. I doubt it is worth it for -a unit where the vendor clearly is trying its best to move from open -to closed systems. I still remember when Garmin dropped NMEA support -in its GPSes.

- -

A final idea was to build ones own unit, perhaps by basing it on a -wearable hardware platforms like -the Flora Geo -Watch. Sound like fun, but I had more money than time to spend on -the topic, so I suspect it will have to wait for another time.

- -

While I was working on tracking down links, I came across an -inspiring TED talk by Dave Debronkart about -being a -e-patient, and discovered the web site -Participatory -Medicine. If you too want to track your own health and fitness -without having information about your private life floating around on -computers owned by others, I recommend checking it out.

+ +
7th December 2019
+

When asked to accept terms of use and privacy policies that state +it will to remove rights I otherwise had or accept unreasonable terms +undermining my privacy, I choose away the service. I simply do not +have the conscience to accept terms I have no indention of upholding. +But how are the system and service providers to know how many people +they scared away? Normally I just quietly walk away. But today, I +tried a new approach. I sent the following email (removing the +specifics, as I am not out to take the specific service in question) +to the service provider I decided to not use, to at least give them +one data point on how many users are unhappy with their terms:

+ +
+From: Petter Reinholdtsen +
Subject: When terms of use turn users away +
To: [contact@some.site] +
Date: Sat, 07 Dec 2019 16:30:56 +0100 + +

Dear [Site Owner],

+ +

I was eager to test the system, as it seemed like a fun and +interesting application of [some] technology, but after reading the +terms of use and privacy policy on <URL: +https://www.[some.site]/terms-of-use > and <URL: +https://www.[some.site]/privacy-policy > I want you to know that I +decided to turn away. There were several provisions in the terms and +policy turning me off, but the final term that convinced me was being +asked to sign away my right to reverse engineer.

+ +

-- +
Happy hacking +
Petter Reinholdtsen

+
+ +

I do not expect much to come out of it, but sharing it here in case +others want to give something similar a try too. If companies +discover their terms scare away enough people, perhaps they will be +improved...

As usual, if you use Bitcoin and want to show your support of my activities, please send Bitcoin donations to my address @@ -680,7 +468,7 @@ activities, please send Bitcoin donations to my address

- Tags: english. + Tags: english, personvern.
@@ -688,36 +476,61 @@ activities, please send Bitcoin donations to my address
- -
7th August 2018
-

Dear lazyweb,

- -

I wonder, is there a fitness tracker / health monitor available for -sale today that respect the users privacy? With this I mean a -watch/bracelet capable of measuring pulse rate and other -fitness/health related values (and by all means, also the correct time -and location if possible), which is only provided for -me to extract/read from the unit with computer without a radio beacon -and Internet connection. In other words, it do not depend on a cell -phone app, and do make the measurements available via other peoples -computer (aka "the cloud"). The collected data should be available -using only free software. I'm not interested in depending on some -non-free software that will leave me high and dry some time in the -future. I've been unable to find any such unit. I would like to buy -it. The ones I have seen for sale here in Norway are proud to report -that they share my health data with strangers (aka "cloud enabled"). -Is there an alternative? I'm not interested in giving money to people -requiring me to accept "privacy terms" to allow myself to measure my -own health.

- -

As usual, if you use Bitcoin and want to show your support of my -activities, please send Bitcoin donations to my address -15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b.

+ +
25th November 2019
+

Four years ago, I did a back of the envelope calculation on +how +much it would cost to store audio recordings of all the phone calls in +Norway, and came up with NOK 2.1 million / EUR 250 000 for the +year 2013. It is time to repeat the calculation using updated +numbers. The calculation is based on how much data storage is needed +for each minute of audio, how many minutes all the calls in Norway +sums up to, multiplied by the cost of data storage.

+ +

The number of phone call minutes for 2018 was fetched from +the NKOM statistics +site, and for 2018, land line calls are listed as 434 238 000 +minutes, while mobile phone calls are listed with 7 542 006 000 +minutes. The total number of minutes is thus 7 976 244 000. For +simplicity, I decided to ignore any advantages in audio compression the +last four years, and continue to assume 60 Kbytes/min as the last +time.

+ +

Storage prices still varies a lot, but as last time, I decide to +take a reasonable big and cheap hard drive, and double its price to +include the surrounding costs into account. A 10 TB disk cost less +than 4500 NOK / 450 EUR these days, and doubling it give 9000 NOK per +10 TB.

+ +

So, with the parameters in place, lets update the old table +estimating cost for calls in a given year:

+ + + + + + + + + + +
YearCall minutesSizePrice in NOK / EUR
200524 000 000 0001.3 PiB1 170 000 / 117 000
201218 000 000 0001.0 PiB900 000 / 90 000
201317 000 000 000950 TiB855 000 / 85 500
20187 976 244 000445 TiB401 100 / 40 110
+ +

Both the cost of storage and the number of phone call minutes have +dropped since the last time, bringing the cost down to a level where I +guess even small organizations can afford to store the audio recording +from every phone call taken in a year in Norway. Of course, this is +just the cost of buying the storage equipment. Maintenance, need to +be included as well, but the volume of a single year is about a single +rack of hard drives, so it is not much more than I could fit in my own +home. Wonder how much the electricity bill would raise if I had that +kind of storage? I doubt it would be more than a few tens of thousand +NOK per year.

- Tags: english. + Tags: english, personvern, surveillance.
@@ -732,6 +545,42 @@ activities, please send Bitcoin donations to my address

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