Delete empty mails from maildrop

I don't know why I have a bunch of empty mails on maildrop folder of postfix, but ...

find /var/spool/postfix/maildrop/ -size 0 -name '*' -exec rm {} +

Postfix. Delete some mails from the queue

Change "123@example" to something you need ...

mailq|grep '123@example'|awk {'print $1'}|grep -v "(host"|tr -d '*!'|postsuper -d -

PHP session timeout cookie lifetime

There are many ways to set cookie based session timeout in PHP. You can edit your php.ini or put it in .htaccess but I choose for today this piece of code:

<?php
ini_set('session.gc_maxlifetime', 172800);
ini_set('session.cookie_lifetime', 172800);
session_start();
?>

The session above will be valid for 2 days.

Don't track me - Google Analytics

I have many websites and I don't want to be tracked by my own Google Analytics code.

This Add-On for Google Chrome should deactivate Google Analytics at all

Redirect all pages to new domain

This code in .htaccess does redirect all requests to a new domain:

RewriteEngine On
RewriteRule ^(.*)$ http://WWW.NEW-DOMAIN.COM/ [R=301]

The problem was, all other directives work like: 

www.old-domain.com/bla -> www.new-domain.com/bla

but I need


www.old-domain.com/bla -> www.new-domain.com

www.old-domain.com/more/bla -> www.new-domain.com

So the htaccess code above works fine.

Kill Android AsyncTask if it hangs

I have an AsyncTask in my Android App that makes a network call. It may happen that the call for ever stuck. So I need a solution to handle this issue.


First I create a TimerTask that call cancel() to my AsyncTask:


class TaskKiller extends TimerTask {
private AsyncTask<?, ?, ?> mTask;
public TaskKiller(AsyncTask<?, ?, ?> task) {
this.mTask = task;
}

public void run() {
mTask.cancel(true);
}
}

Then I use this TimerTask with a timeout I need:

protected Boolean doInBackground(Object... params) {

Timer timer = new Timer();
timer.schedule(new TaskKiller(this), TIMEOUT);

// do some stuff, network, what ever can hangs
 // ...
// cancel the task if all things are done

timer.cancel();
}

onCancelled() will be called if your stuff needs longer than your timeout:

protected void onCancelled() {
// do something, inform user etc.
}

htaccess non-www and www http to https

RewriteEngine on

RewriteBase /

RewriteCond %{HTTPS} !=on
RewriteCond %{HTTP_HOST} !^www\.(.*)$ [NC]
RewriteRule ^ https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

RewriteCond %{HTTPS} !=on
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

RewriteCond %{HTTPS} =on
RewriteCond %{HTTP_HOST} !^www\.(.*)$ [NC]
RewriteRule ^ https://www.%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

<Files .htaccess>
order allow,deny
deny from all
</Files>