Ivo Bardarov

Software development

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Back to the crack scene

J July, 2008 /

I have cracked one bulgarian software for window

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Thumbnail for a webpage

J July, 2008 /

My colegue bl8cki is real fan of making screenshots from web browsers. Those days he tries the python solution. And today he surprised all with one very nice firefox plugin

With this plugin you can use firefox with some command line parameters to make screenshots.

Here is how we will use it

  1. start the xvfb 
    
mkdir /tmp/tmpfbdir
Xvfb :1 -ac -screen 0 1600x1200x24  -fbdir /tmp/tmpfbdir

  2. run the firefox 
    firefox-2 --display=:1 --no-xshm -height 1024 -width 768 -savepng http://www.cenite.com

Windows solutions

http://webscripts.softpedia.com/script/Image-Galleries/Image-Tools/Website-Thumb-Generator-40121.html

http://web-tourist.net/login/login/view.php?st=1193 h

ttp://www.download32.com/website-thumbnail-generator-software.html

http://www.zubrag.com/scripts/website-thumbnail-generator.php

Multiplatform – I cant manage to compile it:

http://cutycapt.sourceforge.net/ http://iecapt.sourceforge.net/

Python:

http://www.burtonini.com/blog/computers/mozilla-thumbnail-20040614?showcomments=yes#

Firefox

http://pearlcrescent.com/products/pagesaver/

https://addons.mozilla.org/en-US/firefox/addon/1146

Another Linux/Ubuntu way:

aptitude install xvfb  xfs xfonts-scalable xfonts-100dpi libgl1-mesa-dri  subversion libqt4-webkit libqt4-dev g++
svn co https://cutycapt.svn.sourceforge.net/svnroot/cutycapt
cd cutycapt/CutyCapt
qmake
make
xvfb-run --server-args="-screen 0, 1024x768x24" ./CutyCapt --url=http://www.google.com --out=example.png
xvfb-run --server-args="-screen 0, 1024x768x24" ./CutyCapt --url=http://www.google.com --out=example.html --out-format=html

http://khtml2png.sourceforge.net/index.php?page=faq

Opera beautifully engineered…for my desktop

J June, 2008 /

I was nice surprised when I tried Opera browser for PC after aprx. one year Firefox usage.

Zooming is faster and smarter than in every browser that I have used.

Firefox boot like MS Windows, and is almost stable like it.

Opera is faaaaast. Gmail is fast. And my work is going fast because all webpages are opening fast.

What? Why you need faster browser if it doesnt support right CSS, DOM, or what ever?

Who said this ? Check the tests for CSS2 and see that Opera and FF are failing apx on the same tests on the same places I am not sure even who is the winner. Check also this those acid tests also

Does someone has tried the dragonfly plugin – analog for the firefox firebug ?

I must agree that the Opera release 9.50 (Build 10063) has some strange javascript support. It happends that when I paste an URL for RSS in Opera, the current page disapears, maybe this is a feature and not a bug :)

Also I am very very disapointed that I should write this article in FF because the build-in WordPress editordoesnt work for Opera :)

My phone is manufactured!

J June, 2008 /

I was waiting for years for some company that will manifacture as good as sony k750 phone.

The time has come, htc diamond is the choosen one :)

Vim vim vim

J June, 2008 /

I cant live without vim. Today is the day I understand this and have install vim on my home windows:) I hope that no one will start it accidently.

Ok. Here i will keep track of the commands that I use in vim.

configuring vim and nice screenshots tutorial

Here is more on the topic

  • Open many files in tabs:  vim -p file*
  • Search & Replace:  %s/something/nothing/g
  • cntrl-space in vim is: cntr-n /  cntrl-p
    load words from all pl/pm files: ctags *.p?
  • windows: :split / :vsplit
    cntr-w – switch
    :close
    :only
  • tabs:
  • set tabstop=2
    set autoindent
    << >>  size is controller:     shiftwidth=4

VimDiff

Keyboard Shortcuts:

do – Get changes from other window into the current window.

dp – Put the changes from current window into the other window.

]c – Jump to the next change.

[c – Jump to the previous change.

Ctrl W + Ctrl W – Switch to the other split window.

Copy checkboxes from one form to another with Prototype

J June, 2008 /

I have a case where the user must select items from a basket and use them with different forms.

Example:
Some items in this form
  • Item:
  • Item:
  • Item:
  • Item:
Another form here
(I will create here hidden fields from the the checkboxes in the first box)

I will show you how to use the checked boxes from the first form with the submit action in the second form

It would be easy if the form could be one – less support.

I am starting with those two forms

  • Helper form – Form with checkboxes
  • Action form – the form that will do the real action based on the selected items in the helper form

Here is how it looks the helper form. All the checkboxes are tagged with the class=”selectable”. Here is rails example but you can implement it pure html.

<%= check_box_tag('selected[]', true, image.selected?, :class=>"selectable") %>

Then we can select all the checkboxes with this javascript.

var make_to_hidden = $$('input.selectable');

Put on your action form an id so we can access it easy in this case:

<form id="mail_form" onsubmit="import_selected_basket()">
	...
</form>

Lets add those checkboxes from the first form to the real action form with this javascript function

      function import_selected_basket() {
          var make_to_hidden = $$('input.selectable');
          make_to_hidden.each(function(item) {
              if (item.checked) {
                var new_item = new Element('input', { 'type': 'hidden', name: item.name, value: item.value })
                $('mail_form').appendChild(new_item)
              }
          });

Rails conf 2008/6/2

J June, 2008 /

Its aways nice to know whats going on in rails field

http://railsenvy.com/2008/6/2/Railsconf-videos

Whats new for me was flog:

  • http://on-ruby.blogspot.com/2007/12/flog-profiling-complexity.html
  • http://ruby.sadi.st/Flog.html

Some more video links

Upgrading Rails

J June, 2008 /

Here is nice tutorial how to move your project from rails 1.2.x to 2.0

  • upgrade the gems: http://wiki.rubyonrails.org/rails/pages/HowtoUpgrade 
    • gem update --system
  • http://macournoyer.wordpress.com/2007/10/28/moving-to-rails-20/
    • nice task to find the deprecated elements: “rake -T deprecated”, 10x!

Web Spiders and expired content

J June, 2008 /

All my spiders were taking all content from a website on a single visit starting from the begining.

It seems that the idea of remembering which urls “produce” links with content is not so very bad.

Here is what I found for diri.bg – a local Bulgarian SE.

I see that diri.bg hasn’t remove from their page

show_categories.php

Even I have no links to this page. Check the result here

Ops. Google do it the same way: here

Then how to get rid of old pages without leaving “bad” links in internet?

I will try to put show_categories.php in robots.txt to see what will happen with this page.

Search engines

J June, 2008 /

It seems that I know too little for the world of the search engines. I will try to summarize the search engines that can be used for real applications. Continue reading

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