roothausen - web

Distributed contact management using HTTP

nospam@example.com (Sven Pfleiderer) — Mon, 25 Oct 2010 10:17:19 +0200

The Idea

A few months ago, Momo came up with an idea to manage contact data in a decentralized and distributed way. The plan was to provide a simple interface to manage and distribute contact data using HTTP. Some weeks ago he finished his bachelor thesis on this topic.

The Project

After some discussions with Momo, I decided to implement his protocol specification. Fortunately, I had the possibility to do this as a software project at my university. The project was mentored by Prof. Kriha.

The implementation itself was done using Scala, Lift and MongoDB.

Abstract

For those of you who don't want to download the whole documentation, here's an abstract:

We all live in times of digital communication: Almost everybody is reachable via cellphone, instant messaging or email. Not only the communication itself evolved but also the communication channels increased dramatically. Some people have multiple email addresses, instant messaging accounts and profiles on several social networks. It is virtually impossible to keep track of all the information available. To address these problems, Moritz Haarmann came up with an idea of a system which is able to manage contact data in a distributed and convenient way. The result of this idea was a protocol proposal which enables users to manage their address data so they can just stop worrying about it. This documentation describes the implementation details and design decisions made to create an usable software which uses the protocol defined by Moritz.

Documentation

I've also written a documentation which describes the protocol specification, some implementation details and the technology used. Have fun with it.

Heute Nacht ...

nospam@example.com (Sven Pfleiderer) — Fri, 13 Feb 2009 21:08:48 +0100

... steht uns ein einmaliges Ereignis bevor: Der UNIX-Timestamp wird den Wert 1234567890 erreichen.

date -d@1234567890
Sat Feb 14 00:31:30 CET 2009

Den Countdown kann man sich uebrigens hier ankucken. Viel Spass dabei.

LinuxDay 2009

nospam@example.com (Sven Pfleiderer) — Tue, 14 Apr 2009 23:14:32 +0200

Gute Nachrichten: Auch dieses Jahr wird es an der HdM Stuttgart einen LinuxDay geben. Dieses mal bin auch ich aktiv daran beteiligt:

Es steht fest: Es wird einen zweiten LinuxDay an der Hochschule der Medien in Stuttgart geben.
Am 25.05.2009 ab ca. 12.30 Uhr an der Hochschule der Medien
Das Vortragsprogramm wird zur Zeit noch festgezurrt, nähere Informationen folgen in Kürze.

Weitere Infos werden im Blog, bei Markus auf twitter und auch hier veroeffentlicht.

Newsbeuter 2.0

nospam@example.com (Sven Pfleiderer) — Tue, 21 Apr 2009 21:50:21 +0200

Nach langer Wartezeit wurde nun der von mir genutzte und fuer Arch Linux gepflegte Feedreader newsbeuter in der Version 2.0 freigegeben. Die Liste der Neuerungen liesst sich bisher sehr gut:

Added more flexible dialog handling
Improved position handling in article list (fixes #112; thanks to Isaac Good)
Fixed a lot of bugs (#102, #111, #117, #130, #131).
Added ability to specify a list of OPML URLs when using OPML as URL source.
Added config option "keep-articles-days" to optionally keep articles only for a limited number of days.
Added config option "bookmark-interactive" to indicate that the configured bookmarking command is interactive.
Don't display authentication information in URLs (fixes #121).
Replaced mrss with new RSS/Atom parser.
Added ability to search for text from the article view.
Added basic support for Yahoo Media RSS.
Made article view pager configurable.
Improved HTML rendering of links and underlined and bold text.
Added ":source" commandline command to (re)load configuration files.
Implemented "pipe-to" key to pipe articles to external commands.
Implemented backtick evaluation for configuration files.
Extended filter language with "between" operator.
Added "age" attribute for articles to filter them for relative age (in days).
Extended "set" commandline command to toggle boolean variables and reset configuration variables of all types to their default.
Added ability to configure local files as feeds.
Added a "random-unread" key to go to a random unread article.
When opening articles from a search result dialog, make search phrase stand out in article view.
Persist commandline and search history.
Implemented commandline completion.
Improved help dialog so that it now shows unbound functions.
Added ability to sort feed list and article list by interactively choosing the sort method.
Improved and extended conditional HTTP download handling.

Ich habe gerade die Arbeiten am PKGBUILD fuer Arch Linux fertig gestellt und dieses in AUR hochgeladen. Ich wuensche euch viel Spass damit!