slurdge•org

This Puzzle Does Not Exist

Wed, 19 Aug 2020 21:58:31 +0200

First of all, credit where is credit is due. As with many deep learning projects, nothing is possible without the work of real, talented humans beforehand.

Therefore I would like to thank Tuesday Quest with their Hungry Cat Nonogram (Android, iOS). Especially shoutout to Sev_4Game for her incredibly beautiful artworks. As we will see, the rules can be learned, but what makes a beautiful pixel is not possible.

Please check out their work and suscribe to their games!

Marcan's tis101 crackme

Fri, 18 Nov 2016 16:52:59 +0900

Here are my findings in the challenge by marcan codenamed ‘crackme.tis101’

Setup

The challenge is available at the following URLs:

nc marcan.st 10847 preferred
telnet marcan.st 10847

If you telnet the following url and port, we are greeted with the follwing prompt (does not vary):

================================================================================
 WELCOME TO THE TIS-101 DEVELOPMENT AND TEST ENVIRONMENT
================================================================================
Enter object code followed by NEWLINE:

We need object code to be sent after this. Marcan provides such an object code at the following URLs:

PwdCheck CTF

Sat, 19 Nov 2016 15:30:51 +0900

This challenge is done by providing a c file.

The file can be downloaded here: https://marcan.st/transf/pwdcheck.c

Vampire Crawlers Save Game Reverse Engineering

Thu, 14 May 2026 15:52:13 +0000

I stumbled on Vampire Crawlers and being a fan of such games, I played the demo and bought it afterwards.

But of course, while playing the game is fun, I always ask myself if there is any protection against “save modification” (e.g., cheats). Come with me as I walk through the small act of reverse engineering the protection.

Gathering information

First of all, the save game location is, on Windows %USERPROFILE%/AppData/LocalLow/Nosebleed Interactive/Vampire Crawlers/Save.

The strange case of Golang + Reddit RSS

Fri, 13 May 2022 16:26:34 +0000

Recently, while working on goeland, I ran some test on reddit’s RSS feeds.

While it worked fine in the past, in the last few months with update to golang 1.17, people started complaining that reddit was rejecting their requests. While if you do the same request with curl, it works, with golang you would get a 429 error code.

The solution outlined on reddit was alike:

req, _ := http.NewRequest("GET", url, nil)
req.Header.Set("User-Agent", "Custom Agent")
var defaultClient = http.Client{
 Transport: &http.Transport{
	TLSNextProto: map[string]func(authority string, c *tls.Conn) http.RoundTripper{},
 },
}
resp, _ := defaultClient.Do(req)

Install rclone with this one-liner

Sat, 26 Feb 2022 12:38:43 +0100

One easy way to have a rclone in the current folder (adapt with your distribution):

curl https://downloads.rclone.org/rclone-current-windows-amd64.zip -o rclone.zip && 7z e -y rclone.zip && del rclone.zip

How to secure proxmox web interface with Caddy

Fri, 28 Jan 2022 21:04:49 +0000

Here is an easy way to secure a proxmox interface with proper https. Install caddy.

Edit the Caddyfile (`/etc/caddy/Caddyfile on Debian) as follow:

example.com {
 reverse_proxy localhost:8006 {
 transport http {
 tls_insecure_skip_verify
 }
 }
}

How to unbrick Somu

Mon, 25 Oct 2021 17:45:16 +0200

Recently, I accidentally put the wrong firmware on a Somu, thereby bricking it.

In order to unbrick it, it is necessary to link it with a STLink.

See the following schema to have the correct pinout (taken from here).

Don’t forget it may be mirrored from what you are seeing. Use the the clues and asymmetries in order to figure out which pin is which.

The following correspondance must be made:

Create Client Cert Ubiquiti

Wed, 01 Sep 2021 16:41:42 +0200

Instead of using the CA.pl script, it’s easier to create the certificates by hand.

Create CA then server key:

sudo -s
openssl req -new -keyout server.key -out server.csr -subj "/C=FR/ST=Paris/CN=vpn.example.org"
openssl x509 -days 1095 -req -in server.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out server.crt 
mv server.crt /config/auth/server.crt
mv server.key /config/auth/server.key

Setup Debian

Wed, 18 Aug 2021 16:09:30 +0200

Half automated steps in order to have a proper debian installed with AWS, Azure, Scaleway, etc.

Prerequisites

A ssh account with root on the target.
A way to either connect with user,pass to the instance or the proper ssh key from the host put inside authorized_keys at the target.
Ansible with debops scripts. Works properly only in linux now.
A hostname pointing to the instance.

Steps

Create a host.yml file with contents:

How to Save Bitlocker Keys

Mon, 14 Jan 2019 13:56:59 +0000

Here is a simple script to help you save all your bitlockers keys easily.

$blvs = Get-BitLockerVolume | Where-Object {$_.MountPoint -match "[A-Z]:"}
foreach ($blv in $blvs)
{
 $id = $blv.KeyProtector | Where-Object { $_.KeyProtectorType -match "RecoveryPassword" }
 echo "Backuping ... $($blv.MountPoint) - $($id[0].KeyProtectorId)"
 Backup-BitLockerKeyProtector -MountPoint $blv.MountPoint -KeyProtectorId $id[0].KeyProtectorId
}

Chut!

Fri, 30 Nov 2018 00:00:00 +0000

I was brought on this project to develop the game. Art and basic gameplay were already done, but the deadline was quite short. I developed the following points:

Automatic CI and builds for Unity
Import toolchain
Level Editor within Unity
Integration of assets
Gameplay
Testing

It was quite a challenge as art was already done and the margin for modification was narrow. However this educational game was extremely well received.

Hungry Cat Picross solver

Thu, 01 Mar 2018 16:52:59 +0900

This program is an attempt to automatically solve a Hungry Cat Picross grid with a simple algorithm.

The principle of the game is simple, yet complex to solve: each pixel has different possible values. It is not possible to test all combinations, so we have to be smarter.

How to route FreeTV with Edgerouter

Sun, 02 Jul 2017 18:56:04 +0200

I recently had the chance to get the fiber at home. However, due to historical reasons, I want to keep my FreeBox along with the Multiposte FreeTV service where I could watch TV on PCs connected to the network. Having two networks, I purchased and configured an Ubiquiti EdgeRouter Lite in failover mode. It’s quite a struggle to get the FreeTV feature working on this configuration, this is how I managed to do it.

Bitbucket Pipelines revisited: Alpine

Fri, 23 Jun 2017 17:39:01 +0200

I wanted to be able to use always the latest version of hugo. However, the jq version provided by the default image of bitbucker is rather old.

Therefore, I used alpine linux image with allows much more recent version of the tools.

Build an Hugo website with Bitbucket Pipelines

Wed, 03 May 2017 14:42:01 +0200

I now use (bitbucket pipelines) to publish this website.

How to display ip on a remote vm before login

Wed, 12 Apr 2017 17:34:35 +0200

Source: taken from (http://offbytwo.com/2008/05/09/show-ip-address-of-vm-as-console-pre-login-message.html)

TL;DR Install with one the following lines (choose either slurdge.org, github.com or gitlab.com) as root. Feel free to checkout the source.

wget https://gitlab.com/snippets/1660984/raw -O - | sh
wget https://gist.githubusercontent.com/slurdge/1fe64837f751101015137c7d2b93ff77/raw/install_ip_prompt.sh -O - | sh
wget https://www.slurdge.org/assets/2017/05/install-ip-prompt.sh -O - | sh

Added new tools

Thu, 01 Dec 2016 23:24:34 +0900

I added two new tools: Add to Trello, which allows you to quickly add tasks to your trello board from windows, and domf, which is a simple pomf clone.

domf

Sun, 27 Nov 2016 23:26:12 +0900

This script is a one php file (+config) that allows you to upload files to a host with pomf protocol.

This script does support:

Uploading multiple files
Filtering mime-types
JSON answers
Short URLs
No database needed

This script does not support:

Other responses than JSON
Upload from the webbrowser
Users, authentication, etc.

Installation

Just copy the script to some location and edit config.php files. Variables should be self explained.

How to open everything in a tab in Firefox

Sat, 19 Nov 2016 16:39:04 +0900

To open everything in a tab in Firefox, many steps are required. You will need some extension to achieve the more complicated ones.

TL;DR

Change the followings:

browser.search.openintab to true in about:config
Install userChrome.js and add the following script.
Done.

What decides where something is open ?

When you click or type somewhere in Firefox, there is code that decides where your click or enter should open. This code is mostly javascript, which means we can inspect it and modify it.

Bye Drupal, welcome Hugo

Sat, 06 Aug 2016 00:00:00 +0000

It has been a long time. Way too long. Update from update, Drupal was less and less a good solution for this website. I don’t update it that often, for starters. Secondly, Drupal was horribly slow and cumbersome. While I agree that Drupal can be an excellent choice for bigger websites, it’s simply not adapted to simple portfolio type websites. As a programmer, I was instanntly seduced by the approach of static sites generators: at last, my content would be easily viewable (the whole point of Drupal was to have the content separated from the HTML, as it was in the first iterations of the site). I setted on Hugo because I liked the fact it was fast, is using not to complicated templating system (even though it seems there is quite a bit different manners of doing the same thing) and is usable only with one executable. I don’t like the idea to pull the earth on my laptop just to compile a few webpages, going with go is perfect.

Add to Trello

Fri, 27 May 2016 23:26:12 +0900

What is it?

AddToTrello is a Microsoft Windows application to add tasks to your Trello Board without requiring launching the browser. Its simple and fast operation mode allows to reduce the time needed to add a task to a minimum.

You can download the latest release (setup.msi)

You can see it in action in the following screenshot

It is built on top of Manatee.Trello with WPF.

How to use

After installation, first launch will require you to authorize the application with Trello. Simply click the link and paste the authorization token inside the window.

Gwbasic dumper

Sun, 06 Sep 2015 00:00:00 +0000

This program take binary GWBASIC programs and dumps them in a text format. Most of the information was taken from this reference: http://www.chebucto.ns.ca/~af380/GW-BASIC-tokens.html A copy of the reference has been put in markdown format in FORMAT.md

The program has been tested with real GWBASIC programs dumped from a DosBox, on the author tests, it provides a 100% match for the text. However it may be very well that some cases are not handled correctly. Please contact me with example of programs that produce invalid results.

New utility online

Tue, 22 Mar 2011 00:00:00 +0000

There is a new utility online: pmwiki2trac. This allows you to convert a pmwiki text to trac syntax. Check it out!

Gray Matter

Sat, 19 Mar 2011 00:00:00 +0000

On this project, my help was required for the scripting backend of the game. Central point, this systems allow non developers to give instructions to the game in order to have a rich gameplay.

I was involved in the following points:

LUA debugging
LUA optimization
LUA memory tracking and management

Build upon my serious skills in scripts languages and in LUA, the script subsystem was overhauled to provide a consistent behavior.

PmWiki To Trac

Sat, 19 Mar 2011 00:00:00 +0000

To call, use this:

pmwiki2trac.py [options] [inputfile] [outputfile]

If input file in empty, stdin is used. The same goes for outputfile.

Added new games

Fri, 18 Mar 2011 00:00:00 +0000

I've added new games description from my work at Wizarbox.

There's Soblonde on Wii/DS, and Risen on Xbox360. Check them out !

SoBlonde : Back to the Island

Sat, 05 Mar 2011 00:00:00 +0000

This game, all screenshots and accompanying materials are copyright Wizarbox.

This an adventure game developed for the DS/Wii. You are Sunny, a young blond woman who’s lost on a pirate island. Will you be able to unravel the mysteries around the island and to escape ? The game feature an impressive 2D/3D combination for the DS, with smooth controls and exiting enigmas !

For this game, I developed mainly:

Initial port of PC scenes
Main engine
- Scene renderer
- Sprite renderer
- Animation system
- Dialog system
- 3D/2D compositing without Z-buffer, the DS doesn’t support it
Tools
- Image exporter
- Dialog compiler
- Scene compiler
- Scene Editor
- Dialog Editor
- Localize
- Scene exporter
- Font compiler
- LZMA compressor

I also developed the localization process that allow the game to be fully translated in any Unicode compatible language (all :-) ).

Risen

Fri, 04 Mar 2011 00:00:00 +0000

This game, being rich and open, provided with plentiful challenges in order to have run on the Xbox360. But first, kudos to the Piranha Bytes team for creating such a great game !

I was involved in the optimization and fitting part, doing work from memory to graphics.

My expertise on constrained systems was useful for

Memory analysis and tuning
Performance enhancement, CPU/GPU wise.
Localization stripping
Build time optimization
Gameplay fixes and tuning
GUI and script fixing

Bienvenue !

Wed, 02 Mar 2011 00:00:00 +0000

Bienvenue sur mon site (qui en est quand même à la version 5 !). Sur ce site vous pourrez trouver des utilitaires, des jeux, des simulations, bref, un peu de tout. J’ai arrêté d’avoir un site en deux langues car cela prenait trop de temps de tout traduire, donc maintenant il n’y a que les applications entièrement en français qui disposent d’une page française (Reminder, Tsv to qif…). Si vous avez besoin d’aide, n’hésitez pas à poser la questions dans les forums ou bien contactez moi !

Drupal 7 on the way

Wed, 12 Jan 2011 00:00:00 +0000

Drupal 7 is out ! Time to update again :) This time it is a little bit more difficult, since CCK is now part of drupal core. So if you see anything that is broken, please use the contact form.

Welcome !

Wed, 05 Jan 2011 00:00:00 +0000

Welcome to slurdge.org, home of my projects and utilities ! Here you can find various materials ranging from utilities to simulations to games. If you need help, do not hesitate to ask in the comments or to contact me.

Drupal 6 migration done

Tue, 05 Jan 2010 00:00:00 +0000

This may be late, but better now than never. The site has been upgraded to Drupal 6 and now has a better support for screen shots for projects.

Added reCaptcha to comments

Fri, 09 May 2008 00:00:00 +0000

Due to huge amount of spam comments, I’ve added a reCaptcha field to the comment forms. Let’s hope it will prevent bots from posting bogus comments.

Contact form disabled

Sun, 30 Dec 2007 00:00:00 +0000

Since i’m getting much spam on with my contact form (like 1 every 30s), i’m desactivating for now. If you need to contact me, send me an email to slurdge a t slurdge d o t org. Thanks.

Deluge on windows

Mon, 10 Dec 2007 00:00:00 +0000

Note

Due to lack of time and to the fact I don’t have a windows machine to test anymore (viva linux!), I’m not maintaining the windows version of Deluge anymore. However, the nice folks at Deluge torrent (the originals authors) are now doing it. I’ve now moved onto different projects. But working with Deluge was a great time!

Credits

I am not the author of deluge, I am just the one that ported it to windows. If you like this client, this mainly because of the great work of its original authors. I would like to thank markybob, andar, zachtib and the others for their great work. Hopefully they will host the port when it becomes more stable. If you like the WebUI plugin, this is due to the awesome work done by vonck7 (screenshot courtesy of him). Also, deluge use libtorrent and its author has provided me with valuable help getting things working on windows. Thanks hydri!
The installer has been created with a modified script from pidgin sources. So, credit where is due, thank you pidgin!
At last, I would like to give credit to all the open sources projects used in this work, look below to see the list. This is incredible what you can do with the help of others. Open source at its best.
Of course, I give a thank you to all users that are testing this client to make it work for others.

Deluge on windows now features debug support

Tue, 25 Sep 2007 00:00:00 +0000

If you are interested in the deluge on windows alpha build, you can now have a crash report in case of a crash. In fact, there are three ! crash types:

The python warning. When you close deluge, a dialog box appears telling you that there were errors. This one can be safely ignored. To see the warnings, open the deluge.exe.log file, and if you find the content interesting (you should know some python), you can send me the info.
The uncaught exception. This one creates a crash, with a dialog box telling you that Python terminated in an unusual way. There’s nothing much to do, apart trying to recreate the bug to have a test case.
The “true” crashes. They can arrive at any moment. In case of a true crash, a deluge.report file should be created. you can safely email this file to me.

Have fun with deluge alpha testing !

WaterSim

Wed, 02 May 2007 00:00:00 +0000

WaterSim is “realistic” water simulation program in real time. It is based on the work done by James F. O’Brien and Jessica K. Hodgins. It features OpenGL rendering of fluid motion, and in addition you can drop objects in water! The method uses pipes connecting columns of fluid. The implementation in C++ is fairly straightforward, there is plenty of room for optimization. Part of sources are available for download.

Here is a list of active keys:

IE Search Hook

Fri, 27 Apr 2007 00:00:00 +0000

This program is for Internet Explorer 6. Internet Explorer 7 has since introduced search bar, so this is not needed anymore. This program allows you to do more efficient searches than with the default engine, which goes on the Microsoft site. You can do a one click search from your address bar. Simply type your search, and voilà! Your preferred engine has done the search for you. By default, the engine is Google, but this can be modified. Moreover, you can add more engines with prefixes: for example, you can do : ‘google search1’ or ‘yahoo search2’ to switch. To configure these additional engines, you will need the Powertoys from Microsoft, in particular, TweakUI. Last, if you type only one word, Search hook for IE will search if a website with the extension .com, .net or .org exists with this name (in that order).

IIEvolution

Fri, 27 Apr 2007 00:00:00 +0000

On observe que les tribus aggressives ne sont pas forcément celles qui ont le dernier mot, ou bien que celles qui ont un comportement expansionniste on tendance à épuiser leur environnement. Il est possible de générer les tribus au hasard et d’enclencher un mode évolution pour observer les changements.
Dans ce projet, je me suis occupé du moteur de la simulation: gestion des évènements, gestion de l’OpenGL, etc… Je ne me suis quasiment pas occupé des paramètres de la simulation proprement dits. Voici une aide succinte pour le programme: Arguments de la ligne de commande:

Reminder

Fri, 27 Apr 2007 00:00:00 +0000

Pour installer, il suffit d’exécuter le programme d’installation et de suivre les instructions.

Utilisation

Pour quitter le programme, deux options: Double-cliquer sur la fenêtre ou bien faire clic-droit->Commandes->Quitter.
Avec un clic-droit sur la fenêtre ou sur l’icône dans la barre des taches, vous accédez à l’ensemble des notes ainsi qu’aux commandes.
Avec un clic-déplacer sur la fenêtre, vous pouvez déplacer celle-ci.
Avec un clic gauche sur l’icône dans la barre des tâches, vous pouvez masquer/afficher la fenêtre.
Note: même si la fenêtre est masquée, vous recevrez les notifications de vos pense-bêtes.

Changements

Version 1.4
- Correction d’un bug dans le statut affiché/masqué
- Correction d’un bug dans les clés du registre
- La version est maintenant affichée dans “About…”
- L’install contient le numéro de version
Version 1.3
- Ajout de l’url du serveur dans les options
- Ajout du skinning # Correction de bugs dans la connection au serveur
- Reminder se souvient maintenant de son statut affiché/masqué lors d’un redémarrage
Version 1.2
- Sauvegarde des penses-bêtes lors d’un crash
- Installation automatisée

RobotIIkE

Fri, 27 Apr 2007 00:00:00 +0000

Ce projet devait être réalisé en binôme. Je me suis occupé de la représentation graphique, mon collaborateur s’occupant des équations. Voici la liste des contrôles dans la fenêtre du robot:

Haut/Bas -> Avancer/Reculer
Gauche/Droite -> Pas chassé à gauche/droite
PgUp/PgDown -> Aller vers le haut/vers le bas
Clic gauche + déplacer souris -> Bouger la tête
F4 : Afficher les axes du robot
F5 : Fil de fer
F6 : Screenshot
F9 : Reflet On/Off
F10: Décor On/Off
F11: Ombre On/Off

tsv2qif

Fri, 27 Apr 2007 00:00:00 +0000

Ce programme vous sera très utile si vous avez des comptes à La Poste et que vous utlisez Money (2000 ou supérieur). Maintenant, La Poste propose un format supporté par Money, mais toujours pas de .qif. Par exemple, CyberMut ne marche bien qu’avec les .qif ! Pour pouvoir avoir vos relevés de comptes directement dans Money ou autre, c’est très simple:

Téléchargez le programme (en bas de cette page). Cette étape n’est nécessaire qu’une fois. Placez le fichier dans le répertoire de votre choix et décompressez le.
Téléchargez votre fichier La Poste (.tsv). Je vous recommande de le renommer puisque le nom fourni par La Poste n’est pas très explicite.
Faites glisser ce fichier sur le programme - ou si vous vous y connaissez en ligne de commande, utiliser la ligne de commande.
Un fichier portant le même nom et l’extension .qif sera crée. Il vous suffit en général de double-cliquer sur ce fichier pour que votre suite financière intègre votre relevé.

Advanced Renamer