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2014-03-30 Windows Media Encoder 9 - small, efficient, and powerful enough for screen capturing and streaming

Open the link http://www.microsoft.com/en-us/download/details.aspx?id=17792; choose downloading; next next next... accept T&C... next next next... install...

Wait few seconds, and you're done.

Once you start the program, choose Capture screen option, then choose between Specific window, Region of the screen, or Entire screen.

Then, enjoy the recording and the very small size of the encoded file - but still capturing all the details from your display.

2014-03-05 Runtime dynamic loading of JARs (valid only on Sun JVMs)

Shortest (as of now) way for me to dynamically load classes from JARs that are not defined in the project.

public static synchronized void loadJAR(File jar) throws ClassNotFoundException {
	try {
		URLClassLoader loader = (URLClassLoader) ClassLoader.getSystemClassLoader();
		URL url = jar.toURI().toURL();
		if (Arrays.asList(loader.getURLs()).contains(url))
			return;
		Method method = URLClassLoader.class.getDeclaredMethod("addURL", new Class[] { java.net.URL.class });
		method.setAccessible(true);
		method.invoke(loader, new Object[] { url });
	} catch (final ReflectiveOperationException e) {
		throw new ClassFormatError(e.getMessage());
	} catch (final java.net.MalformedURLException e) {
		throw new ClassNotFoundException(e.getMessage());
	}
}

2014-02-28 How to make OAuth Facebook login on your site and how to query FB for your customer's information

It is ssupposed you already have the base_facebook.php, facebook.php, and fb_ca_chain_bundle.crt in their corresponding paths and included as required.

1 files attached: IdentityProviders.php
IdentityProviders.php

<?
abstract class IdentityProviderInterface{
	public $name;
	public function __construct($name){
		$this->name=$name;
	}
	public function getName(){
		return $this->name;
	}
	abstract public function getLabel();
	abstract public function getIconUrl();
	abstract public function getLink();
	abstract public function login();
	abstract public function logout();
	public function getUser(){
		return @$_SESSION['contact']['id'];
	}
}
class OAuthFB extends IdentityProviderInterface{
	function __construct(){
		parent::__construct('facebook');
		//$this->data=array('icon'=>'//facebook.com/favicon.ico','label'=>'Facebook','protocol'=>'OAuth-FB', 'login'=>'https://www.facebook.com/dialog/oauth','logout'=>'http://www.facebook.com/logout.php');
	}
	public function getLabel(){
		return 'Facebook';
	}
	public function getIconUrl(){
		return '//facebook.com/favicon.ico';
	}
	public function getLink(){
			return "?FederatedIdentityProvider=facebook";
	}
	public function login(){
		require_once("$_SESSION[common_system_folder]/OAuth-FB/facebook.php");
		$facebook=new Facebook(array('appId'=>'*****************','secret'=>'*****************'));
		$user=$facebook->getUser();
		if($user){
			try{
				$userProfile= $facebook->api('/me');// the "me" represents the customer's profile, as you query the FB on the customer's behalf
				$_SESSION['contact']['provider']=@$_GET['FederatedIdentityProvider'];
				$_SESSION['contact']['name']=@$userProfile['name'];
				$_SESSION['contact']['id']=@$userProfile['username'].'@facebook.com';
				return;
			}catch(Exception $e){
			}
		}?><!DOCTYPE html><html xmlns:fb="http://www.facebook.com/2008/fbml"><body><fb:login-button></fb:login-button><div id="fb-root"></div>
		<script>window.fbAsyncInit=function(){FB.init({appId:'<?php echo $facebook->getAppID()?>',cookie:true,xfbml:true,oauth:true});
		FB.Event.subscribe('auth.login',function(response){window.location.reload();});
		FB.Event.subscribe('auth.logout',function(response){window.location.reload();});};
		(function(){var e=document.createElement('script');e.async=true;e.src=document.location.protocol+'//connect.facebook.net/en_US/all.js';document.getElementById('fb-root').appendChild(e);}());
		</script></body></html>
		<?die;
	}
	public function logout(){
		require_once("$_SESSION[common_system_folder]/OAuth-FB/facebook.php");
		$facebook=new Facebook(array('appId'=>'*****************','secret'=>'*****************'));
		if(@$facebook->getUser())
			header('Location: '.$facebook->getLogoutUrl());
	}
}?>

2014-02-21 Simple Java headless browser that keeps track of cookies - to make easier crowling the sites that require authentication

Sample minimal headless browser in java.

1 files attached: HeadlessBrowser.java
HeadlessBrowser.java

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;
import java.util.Map;

import org.postgresql.util.Base64;

//import org.apache.commons.io.IOUtils;

public class HeadlessBrowser {
	private List<String> cookie = null;

	private HttpURLConnection getConnection(String url, String... headers)
			throws MalformedURLException, IOException {
		HttpURLConnection connection;
		connection = (HttpURLConnection) new URL(url).openConnection();
		if (cookie != null)
			for (int i = 0; i < cookie.size(); i++)
				connection.addRequestProperty("Cookie", cookie.get(i));
		if (headers != null)
			for (String header : headers) {
				int kvPos = header.indexOf(':');
				connection.setRequestProperty(header.substring(0, kvPos),
						header.substring(kvPos + 1));
			}
		connection.setRequestProperty("User-Agent",
				"HeadlessBrowser/1402211648 (+http://dragos-matei.sorescu.eu)");
		return connection;
	}

	public Response get(String url,String...headers) throws IOException {
		HttpURLConnection connection = getConnection(url,headers);
		Response response = new Response(connection.getHeaderFields(),
				connection.getInputStream());
		List<String> setCookie = response.headerFields.get("Set-Cookie");
		if (setCookie != null)
			cookie = setCookie;
		return response;
	}

	public Response post(String url, String postBody, String... headers)
			throws IOException {
		HttpURLConnection connection = getConnection(url, headers);
		connection.setDoOutput(true);
		connection.getOutputStream().write(postBody.getBytes());
		Response response;
		try {
			response = new Response(connection.getHeaderFields(),
					connection.getInputStream());
		} catch (Throwable t) {
			response = new Response(connection.getHeaderFields(),
					connection.getErrorStream());

		}
		List<String> setCookie = response.headerFields.get("Set-Cookie");
		if (setCookie != null)
			cookie = setCookie;
		return response;
	}
	public Response put(String url, String postBody, String... headers)
			throws IOException {
		HttpURLConnection connection = getConnection(url, headers);
		connection.setDoOutput(true);
		connection.setRequestMethod("PUT");
		connection.getOutputStream().write(postBody.getBytes());
		Response response;
		try {
			response = new Response(connection.getHeaderFields(),
					connection.getInputStream());
		} catch (Throwable t) {
			response = new Response(connection.getHeaderFields(),
					connection.getErrorStream());

		}
		List<String> setCookie = response.headerFields.get("Set-Cookie");
		if (setCookie != null)
			cookie = setCookie;
		return response;
	}

	public class Response {
		public Map<String, List<String>> headerFields;
		private byte[] body;

		public Response(Map<String, List<String>> headerFields, InputStream body)
				throws IOException {
			this.headerFields = headerFields;
			ByteArrayOutputStream baos = new ByteArrayOutputStream();
			if (body != null) {
				byte[] dump = new byte[65536];
				for (;;) {
					int length = body.read(dump);
					if (length < 0)
						break;
					baos.write(dump, 0, length);
				}
			}
			this.body = baos.toByteArray();

		}

		public byte[] getBodyBytes() {
			return this.body;
		}

		public String toString() {
			return new String(this.body);
		}

		public String toBase64String() {
			return Base64.encodeBytes(this.body);
			// return new String(dms.os.Codec.base64.encode(this.body));
		}

		public String getHeader(String header) {
			List<String> strings = headerFields.get(header);
			return (strings == null) ? null : strings.get(0);
		}
	}
}

2014-01-27 Simple PHP POST API call (using file_get_contents)

1 files attached: apiCall.php
apiCall.php

<?php
function apiCall($path,$params){
	$result=array();
	$url='http://crm.sorescu.eu/'.$path;
	$opts=array('http'=>array('method'=>'POST','header'=>'Content-type: application/x-www-form-urlencoded','content'=>http_build_query($params)));
	$out=file_get_contents($url,false,stream_context_create($opts));
	$result['url']=$url;
	$result['in']=$params;
	$result['out']=json_decode($out,true);
	return $result;
}?>

2013-12-11 Simple HTA widget to see online data on desktop

How to:

paste the main code below in a file named my_file.hta;
just run the file by double-clicking it;
close it by ALT-F4'ing it after getting it in focus.

Features:

Supports resizing with mouse drag from the bottom-right corner;
Supports moving the HTA on display using the CTRL-drag from the same bottom-right corner

Tips for power users:

Make it Always on top:

install an utility to bring windows on top (like http://www.softpedia.com/get/System/OS-Enhancements/PowerMenu.shtml);
set attribute head/HTA:APPLICATION CAPTION="yes" - if you are using Power Menu;
press F5 to refresh the widget and show the window caption;
set the window always-on-top using the utility;
set attribute head/HTA:APPLICATION CAPTION="no" - if you are using Power Menu;
TADA! You have now a small always-on-top HTML page showing your custom HTML page on desktop;

Show/hide it from task bar by manipulating the SHOWINTASKBAR attribute.

Sample caption (details below are server-side HTML that checks the status of 3rd party systems):

1 files attached: application.hta
application.hta

2013-11-28 How to throw an exception in Java even if the compiler does not allow you to...

How to throw an exception that you are not allowed to...

Did you ever get frustrated when a previous developer declared an interface that simply won't allow you to throw a new type of exception?: Rethrow it wrapped in a runtime exception: throw new RuntimeException(myOldJunkyException)
Did you ever need to rethrow the very same exception as reported by a remote system?: Serialize it, receive it, and rewrap it in a synthetic new exception with new RuntimeException().setStackTrace(myNewSyntheticStackTraceIncludingRemoteJunkyLines)

Or, just throw it as it is, by breaking the "convention" of throwing only declared exceptions from the method signature (which anyway the JVM does not care much at run time)... Usage:

public static int main(String[] args) throws IOException {
	THROW(new RuntimeException());
	return "dummy statement that won't ever be executed, but it's requied to compile the function. The compiler cannot figure out that the THROW will throw an exception... :D".length();
}

PS: Don't try it on JVM clones, it might not work at all. Neither on Google's Dalvik...

2 files attached: HelperClass.java Usage.java
HelperClass.java Usage.java

2013-11-06 Windows NTNET test on "Java code to check if LDAP (including AD over LDAP) with basic authentication works (check if user/password) is valid"

Thanks to Dmitriy, I put below additional notes and an example on real-life NTNET domain test (sterilized code). The code below was tested on my current (production) NTNET DC and it worked fine.
Notes: {domain_controller_machine} can be found by running Windows echo %logonserver%, then run tracert {logon_server} to identify it's full name.
{my_ntnet_user in short form} is my NTNET user without any realm or domain information.

1 files attached: Test.java
Test.java

2013-11-05 Shortest (generally working) full-screen toggle coode

1 files attached: sample.html
sample.html

<div class='pull-right' onclick='$(this).find("a").toggle()'>
	<a onclick='for(var k in{request:1,webkit:1,moz:1,ms:1})try{document.documentElement[k+"RequestFullScreen"]();}catch(e){console.log(e)}'><%icon:maximize%></a>
	<a style='display:none' onclick='for(var k in{exitFulls:1,mozCancelFullS:1,webkitCancelFullS:1})try{document[k+"creen"]();}catch(e){console.log(e)}'><%icon:window%></a>
</div>

2013-11-05 Java code to check if LDAP (including AD over LDAP) with basic authentication works (check if user/password) is valid

Straight-forward pinging an LDAP server (to check if also authentication works).

1 files attached: Test.java
Test.java

package dms;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.Name;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
import javax.naming.ldap.LdapName;
public class Test {
	public static void main(String[] args) {
		try {
			test();
		} catch (NamingException e) {
			System.out.println(e.getMessage());
		}
	}

	public static void test() throws NamingException {
		Hashtable<String, String> env = new Hashtable<String, String>();
		env.put(Context.INITIAL_CONTEXT_FACTORY,
				"com.sun.jndi.ldap.LdapCtxFactory");
		env.put(Context.PROVIDER_URL, "ldap://ldap_server.www.company.com:389/o=Users");
		env.put(Context.SECURITY_AUTHENTICATION, "simple");
		env.put(Context.SECURITY_PRINCIPAL,
				"CN=myUserName,CN=Users,DC=ldap_server,DC=www,DC=company,DC=com");
		env.put(Context.SECURITY_CREDENTIALS, "********");
		DirContext ctx = new InitialDirContext(env);
		Name name=new LdapName("invalid_name");
		Object o=null;
		ctx.bind(name, o);
		//Should throw "invalid name exception"
	}
}