6. März 2016

All your logs in one place with graylog

graylog allows you to centralize and aggregate all your log files for 100% visibility. Use their powerful query language to search through terabytes of log data to discover and analyze important information.

Perfect match, when you are maintaining multiple servers and what a team to have real-time access to collected data.

Graylog

2. März 2016

Create and Manage multiple isolated PHP environments with virtPHP

„virtPHP is a tool for creating and managing multiple isolated PHP environments on a single machine. It’s like Python’s virtualenv, but for PHP.

virtPHP creates isolated environments so that you may run any number of PHP development projects, all using different versions of PEAR packages and different PECL extensions. You may even specify a different version of PHP, if your system has various installations of PHP.“

virtPHP @ Github

26. Februar 2016

Structure – IoT platform that connects devices and data

Structure opened its doors a couple of days ago.

Structure offers a simple and powerful IoT cloud platform for developing the next generation of connected experiences. They offer device management with robust data visualization that reacts in real-time.

They have a nice drag & drop workflow interface that allows you to forward data coming in, combine data or just store it.

I will be testing a builder kit with the platform, that includes the Adafruit Feather Huzzah, which offers native Wifi connectivity. My Raspberry Pi’s will also find their way into the system. The platform allows to consume REST Apis as well, that will make it even more fun to build something unique.

If you are interested in IoT, you should really check it out. Its free :)

Structure / Adafruit Feather Huzzah

Enjoy coding …

1. Februar 2016

Parse Alternatives

Now that Parse is phasing out (01/2017), people are looking for alternatives that offer:

Data Storage
Push Notifications
Usage Analytics
Dashboard
Social Integration
User Administration
Cloud Code Integration
Multiple Mobile Platform SDKs
Background Jobs
Crash Report

Collaborative list of Parse alternative backend service providers @ GitHub

1. November 2015

Flarum – elegant next-generation forum software

Flarum is new elegant next-generation forum software. It provides a touch optimized two pane layout with floating composer.

The backend runs on PHP/MySQL.

Flarum

23. Oktober 2015

OpenLog – track console errors & warnings in real time with Node

„OpenLog is a lightweight front end Javascript plugin (< 1kb gzipped!) that sends your user’s console errors & warnings in real time to a dynamic dashboard built with Node.“

You can not have enough tools to track errors and warnings during development. OpenLog is a nice clean dashboard to keep an overview of things being logged.

It will automatically track console.log, console.info, console.warn and console.error.

You can also use its build in methods.

Log.error();
Log.warn();
Log.info();

Github

Enjoy coding …

21. Oktober 2015

ErrorBoard – Track JS errors in a clean interface for yourself with node.js

Javascript Error tracking is becoming more and more important, with applications moving to the client. Many service providers already offer a variety of extensive error tracking solutions for a price. These providers help to get around browser limitations and get the most out of errors.

Depending on your budget, that might not always be an option and not always needed.

To the rescue comes ErrorBoard, that provides a basic interface to track window.onerror events. Requires Node.js, NPM and a free port.

Here the window.onerror, how I set it up for now:

// checks if there was a previously defined window.onerror and preserve it
var oldOnError = window.onerror;

window.onerror = function( message, url, line, column, error ) {


  if (errorMsg.indexOf('Script error.') > -1) {
   return false;
  }
  
  try {
	var e = encodeURIComponent;
	
	var meta = '{"project":"portalzine.de"}';
	
	( new Image() ).src = 'http://UrltoErrorBoard/error?message=' + e( message ) +
	'&url='    	+ e( url ) +
	'&line='   	+ e( line ) +
	'&meta='	  	+ e( meta ) +
	( error && error.stack ? '&stack='   	+ e( error.stack ) : '' ) +
	( column ? '&column='  + e( column ) : '' )
	;
  
  } catch(e) {
  	// we don't want errors to throw inside onerror
  }
  
  // Call any previously assigned handler
  if (typeof oldOnError === 'function') {
  	oldOnError.apply(this, arguments);
  }
  
  // returning false triggers the execution of the built-in error handler								
  return false;
};

// checks if there was a previously defined window.onerror and preserve it

var oldOnError = window.onerror;

window.onerror = function( message, url, line, column, error ) {

if (errorMsg.indexOf('Script error.') > -1) {

return false;

}

try {

var e = encodeURIComponent;

var meta = '{"project":"portalzine.de"}';

( new Image() ).src = 'http://UrltoErrorBoard/error?message=' + e( message ) +

'&url=' + e( url ) +

'&line=' + e( line ) +

'&meta=' + e( meta ) +

( error && error.stack ? '&stack=' + e( error.stack ) : '' ) +

( column ? '&column=' + e( column ) : '' )

;

} catch(e) {

// we don't want errors to throw inside onerror

}

// Call any previously assigned handler

if (typeof oldOnError === 'function') {

oldOnError.apply(this, arguments);

}

// returning false triggers the execution of the built-in error handler

return false;

};

Enjoy coding …

21. Oktober 2015

.htaccess Basic Auth with Request_URI exception

SetEnvIf Request_URI ^/error/ noauth=1
  
AuthType Basic
AuthName "Nothing here for you!"
AuthUserFile /yourpathto/.htpasswd

Order Deny,Allow
Satisfy any
Deny from all
Require valid-user
Allow from env=noauth

SetEnvIf Request_URI ^/error/ noauth=1

AuthType Basic

AuthName "Nothing here for you!"

AuthUserFile /yourpathto/.htpasswd

Order Deny,Allow

Satisfy any

Deny from all

Require valid-user

Allow from env=noauth

This will request no authentication, if the Request URI has /error/ in it.

SetEnvIf Apache

Enjoy coding …

20. Oktober 2015

WordPress Plugins & Sessions

START SESSION ON INIT

add_action('init', 'pluginStartSession', 1);
function pluginStartSession() {
    if(!session_id()) {
        session_start();
    }
}

add_action('init', 'pluginStartSession', 1);

function pluginStartSession() {

if(!session_id()) {

session_start();

}

NEW SESSION ON LOGIN / LOGOUT

add_action('wp_logout', 'pluginEndSession');
add_action('wp_login', 'pluginEndSession');

function pluginEndSession() {
    session_destroy ();
}

add_action('wp_logout', 'pluginEndSession');

add_action('wp_login', 'pluginEndSession');

function pluginEndSession() {

session_destroy ();

}

Now go ahead and use $_SESSION freely in your plugin. Here a nice additional class to encrypt session data.

Enjoy coding ….

20. Oktober 2015

HyperDB – replication, failover, load balancing, and partitioning for WordPress

HyperDB is a plugin for spreading your websites load across several servers and databases. Its currently used in production on WordPress.com.

Partitioning, separate your data and spread it across multiple servers.
Replication, master / slave setup for security.
Failover, if one database fails, the other takes over.

Just started experimenting with it :)

HyperDB