stas'den - web

Formulário CEP/CPF/CNPJ

Wed, 15 Aug 2007 20:31:52 -0300

(tente preencher os campos acima; a informação é atualizada instantaneamente)

Este projeto é o sucessor do CEP-2-City. É um formulário online que:

Verifica a validade do número CPF
Verifica a validade do número CNPJ
A partir do CEP, deduz o endereço completo (Cidade/Estado/Bairro/Rua)
A partir do CEP, deduz o código DDD da região

O banco de dados utilizado é compilado a partir de diversas fontes. Se não constar a informação da rua, então somente a cidade é retornada. A interface com o banco de dados foi implementada usando Perl e PHP, e pode ser acessada via CGI, Flash ou AJAX. O sistema de busca é extremamente eficiente, e não necessita de MySQL. O tamanho do banco de dados é cerca de 60 MB, e a performance chega a milhares de consultas por segundo.

Portanto, eis uma solução bastante símples, flexível e eficaz para o cadastro de clientes. Já utilizei este sistema numa pesquisa que conduzi, e asseguro que me poupou bastante tempo. Se tiver interesse, entre em contato!

Geolizer HTTP stats

Tue, 16 Jan 2007 15:00:00 -0200

About Geolizer

This is an enhanced version of the popular Webalizer HTTP server statistics generator. It's main feature is an ability to discover visitor's country by his/her IP address. Default Webalizer method is to extract host suffix from the reversal DNS query (obtained directly from log files, or by webazolver program if HTTP server doesn't reverses client IPs), which is slow and imprecise (for example, Brazilian host could be reversed as .com). Geolizer relies on the GeoIP library API to do the same thing. Thus, no more DNS queries are required, and results are much more precise. Geolizer also has some additional features: it displays file sizes in a human-readable form (bytes/KB/MB/GB/TB) instead of default kilobytes. It also compiles under MinGW/MSYS now, so you can process your UN*X log files on your Windows box. And, finally, Geolizer features a nice eye-candy: country flags!

Beware as Geolizer also has some bad features (read "bugs"): for example, webazolver won't work anymore, and already resolved hosts aren't handled well. Want to see how it looks like, at all? Take a look at some sample statistics! Or see who else uses Geolizer to produce their server stats.

Tips

The country flag pictures can be downloaded at http://flags.blogpotato.de/. Just download and unzip world.small.zip & special.small.zip to the flags/ subdirectory in your HTML output path.
You may enhance your Webalizer further (allowing it to identify more user agents, referrers and search engines than normal) using extended configuration files, provided by Enric Naval and available at http://griho.udl.es/webalizer/.
It is possible to use multiple configuration files on Webalizer. Just specify them at the command line:
```
webalizer -c common.conf -c user_stas.conf
```
Why don't you try also AWStats & WebDruid?!

It is easy to located an internet service which provides low prices for voip. Simply by downloading the software the service of the voip can be utilized, though for this a fast wireless internet is also required. This is especially benefical for small website hosting companies to contact their clients at a low cost.

tiny HTTP proxy

Wed, 03 Jan 2007 22:50:00 -0200

This is a tiny and highly experimental HTTP/1.0 proxy software that I have written to debug HTTP protocol & it's clients. It is very small and simple, yet useful to reverse-engineering purposes. It's interface is quite obvious. The Server frame controls the IP, port and connection limit of the proxy server. It also shows how many connections are active at moment. The Data Traffic frame shows in/out packets & bytes. Service frame allows you to stop, start and quit the proxy. These are the very minimalist controls for the very minimalist proxy server.

The interesting stuff begins at the Plugin frame. All the packet passed through this proxy server are forwarded to the selectable plugin module. By default, it is logger.dll. It simply saves every single packet into separate file, which uses the following name scheme: from_IP.from_port-to_IP.to_port.log (for example, 127.0.0.1.4322-127.0.0.1.21.log). The files can be ordered by their modification date in your file explorer, so you can track the entire session:

The logger.dll can be set up to include a sequence counter at the beginning of each packet and to output saved packets into some specific directory:

Plugin module is also capable of injecting packets. Load the replicator.dll file and check the setup screen:

When you click the Capture button and then make some action in your proxied web client, the replicator plugin will prompt you if it got a corresponding packet. This packet may be resent automatically, at the period specified in the Period box. You can capture & replicate several packets, and manipulate their resend period. A very interesting application of the replicator plugin is to flood web chats and to spin up web counters. Of course, the right way is to use logger.dll and to make a clone that imitates the "real" web client.

The final note: this is, and always will be, an alpha-state code. I do not develop this proxy application anymore. It is useful to me the way it is. But you can grab the source and make a whatever plugin you like, or even rewrite the code entirely. I don't care. Just give me the proper credits!

I.E. 'hidden image' maker

Fri, 05 May 2006 17:47:18 -0300

If you are using Internet Explorer (any version able to load this page , just select the above image (or go to "Edit => Select All", or press Ctrl-A). You may see a watermark with white letters forming a word "TEST". This only happens in IE, due to the specific way it masks the selected images to show their selected state. Firefox, for example, simply tints the image with bluish color. There are lots of jokes one can make using this simple principle. For example, all images on your homepage may have some "subliminal" messages. Adobe PhotoShop is perfectly suitable to make such 'Hidden Images' by hand; in fact, my inspiration was a tutorial made by Matt Kment to do this. But if you are too lazy and/or do not have PhotoShop installed (UN*X users, for example), you can use this small program I wrote in Perl to automate the "steganographic" process. I wrote it using ImageMagick^TM library (so it's required to successfully run the program). It is a command line program, but it is simple enough to use, and it has an advantage to be integrable into your own scripts/programs (you can even setup your server to embed your company logo into all graphics of your site, but this will overload the server's CPU and RAM too quickly). I called my program "Internet Explorer Mask'O'Matic". Take a look at it's startup screen:

Internet Explorer Mask'O'Matic v1.0 by Stas 
Grab yours at http://sysdlabs.hypermart.net/ 

Inspirated by some mad stuff by Lem0nHead
Based on Photoshop 'Hidden Image' Guide (http://www.atomicwienerdog.com/ot/)
made by Matt Kment & suggested to me by xfalmp


ERROR: please give us --visible


 * Usage: MaskOMatic.pl 
 * Options (note that you can use syntaxes like --vis= --hid -out -p):
 --visible filename of image normally seen (required)
 --hidden filename of image seen when selected in IE (required)
 --output filename to write out, format is selected automatically
 using suffix provided (required)
 --percentage float value between 0 & 100; how much of hidden appears
 (optional, defaults to 50%)
 --quality JPEG/MIFF/PNG compression level (optional, DON'T USE!)
 --contrast flag, internal contrast reduction (optional)
 --test filename to dump preview of selected image (optional)

 * Notes:
 # Visible & hidden images doesn't need to have same size, when size
 doesn't matches then hidden image is rescaled using Lanczos filter
 # A huge set of image formats is supported (JPG, GIF, PNG for example)
 but I strongly advice you to write output in loseless format *only*
 (BMP, PNG, TGA) and *then* fine-tune contrast/brightness & save
 compressed in your favourite image editor (like GIMP)

 * Example:
 MaskOMatic.pl --vis bush.jpg --hid death.jpg --out sublim.bmp

Only 3 options are obligatory: --visible, --hidden & --output. You can abbreviate them as -v, -h & -o, respectively. "Visible" is an image that user sees by default. "Hidden" is what user sees when he/she selects the image. And "output" is the resulting image you can embed into your pages. It is also possible to use the "--test" option to preview the selected state of the output image without starting Internet Explorer. If it looks bad, you may play around with "--percentage" option, which specifies the 'weight' of the hidden image. The higher is this value, the greater is the hidden image visibility. If that's not enough to hide your image well (some things are pretty difficult to hide!), you can try to tune the output image with "--contrast" option, but I suggest you to use some GUI program to do that as you get the visual feedback instantly. I also suggest you to always save your output in the non-compressed lossless format (like BMP, TGA, TIFF), and then fine-tune the compression in some program specialized in it (GIMP has a nice compressor with visual feedback).

Alternatives:

Hidden Image Photoshop tutorial
Magic Image Generator C#/VS.NET2003 program (with source)

GibCounter QW stats

Thu, 20 Apr 2006 01:48:22 -0300

GibCounter is a tiny yet quite useful game statistics generator for QuakeWorld games. It operates parsing frag*.log files generated by the QuakeWorld game server. If your server doesn't generate such a log files by default, you may enable this feature executing the server as follows:

qw-server +set fraglogfile 1

Of course you can also edit your server's .cfg files to enable frag logging. You may run GibCounter on the same machine (and, on UN*X systems, as the same user) that runs the game server. If it's a QuakeForge server, then GibCounter will locate log files automatically at the path $HOME/.quakeforge/qw. For the different ports of the QuakeWorld server, or a QuakeForge server operating as a different user, you may specify the location of the qw directory manually. To do that, simply pass the new directory as an argument to GibCounter (using your favorite command line shell):

perl gibcounter.pl /home/qserver/.quake/qw

GibCounter outputs the generated HTML code directly to STDOUT. So, if you're going to add it into your server's crontab, don't forget to pipe the output to some file! For example, the following crontab line will regenerate GibCounter game stats every 30 min and make it available through the URL http://yourserver.com/~youruser/gibcounter.html (file paths & crontab format may be different on your system; so ask your system administrator if unsure):

0,30 * * * * perl $HOME/gibcounter.pl > $HOME/www/gibcounter.html

GibCounter is also highly theme-able: CSS style of almost every element may be changed within gibcounter.css file. Of course, you can also edit the HTML template which is contained inside the Perl source itself
The game statistics page generated by GibCounter is self-explanatory. On the top, it will show players ranking, sorted by (guess what?!) the frags they scored. Frags are computed as: kills minus suicides. GibCounter also computes how many times each player was killed by others. And, on the bottom of the generated page, some computed totals are shown. This includes the period of time for which the stats were made, the top fragger (the best) & the top fragged (the worst) players. Please note that players with default nicknames, such as "unnamed" or "user-#", are automatically excluded from being processed, simply to avoid useless information bloat (as many different players would be rated as one, with very high kill/death number)!
By the way, GibCounter preserves the colorization of the graphical font in players' nicknames (Quake console is able to print some ASCII characters in white, orange, gold & brown colors), and translates all symbols into readable ASCII.
So, after all, how does GibCounter-generated page looks like?! Look for yourself, here are some example stats. Also, feel free to modify the program itself to fit your own needs!