Java to Do ImageMagick Call

 package com.product.zilly;

import java.io.File;

import java.util.Map;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * @author drvijay

 * @description img class

 * @version 1.0

 */

@SuppressWarnings ("all")

public class TestModules implements Constants

{

private static final Logger logger = LoggerFactory.getLogger ( TestModules.class );

public static void main ( String args[] )

{

ImageHelper imageHelper = new ImageHelper ();

String renditionPath = "/home/drvijay/images"; 

String rendtionPathCategory = "/home/drvijay/images"; 

String startingMainPath = renditionPath + PATH_SEPARATOR + SkuRendition.main;

String startingCategoryMainPath = rendtionPathCategory + PATH_SEPARATOR + SkuRendition.main; // for category images main path

imageHelper.loadSkuImageProperties ();

boolean imageOverride = false; 

File rotated = null;

File file = new File ( startingMainPath + PATH_SEPARATOR + "sample.png" );

if ( file.isFile () && file.exists () )

{

Map <SkuRendition, Map <Resolution, DimInfo>> dimensions = imageHelper.getAllDimensions ();

logger.debug ( dimensions.toString () );

for ( SkuRendition skuRendition : dimensions.keySet () )

{

try

{

Map <Resolution, DimInfo> resolutions = dimensions.get ( skuRendition );

for ( Resolution resolution : resolutions.keySet () )

{

DimInfo dimInfo = resolutions.get ( resolution );

File isExist = new File ( renditionPath + PATH_SEPARATOR + skuRendition.name () + PATH_SEPARATOR + resolution.name () + UNDER_SCORE + file.getName () );

if ( ( imageOverride && isExist.isFile () && isExist.exists () ) || ( !isExist.isFile () && !isExist.exists () ) )

{

rotated = imageHelper.processImage ( file, imageHelper.getOutputDir ( renditionPath, skuRendition.name () ), dimInfo, resolution.name () );

logger.debug ( "Generated : " + rotated.getAbsolutePath () );

}

}

}

catch ( Exception e )

{

logger.error ( "Error : " + e );

}

finally

{

/*

* if ( rotated != null )

* {

* rotated.delete ();

* }

*/

}

}

}

}

}

//Iamge Process

public File processImage ( File inFile, File outputDir, DimInfo dimInfo, String resolution ) throws Exception

{

String fileName = resolution + UNDER_SCORE + inFile.getName ();

// String fileNameWithOutExt = FilenameUtils.removeExtension(fileName);

// String fileNameExt = FilenameUtils.getExtension ( fileName );

// check for windows and set the image magick home manually to avoid error.

String OS = System.getProperty ( "os.name" ).toLowerCase ();

if ( ( OS.indexOf ( "win" ) >= 0 ) )

{

// linux - "/usr/lib/mime/packages/imagemagick-6.q16";

String myPath = "C:/Program Files/ImageMagick-6.9.2-Q16"; // globalMaster.getSystemProperties ().get ( KEY_PATH_HOME_IMAGE_MAGICK ).getValue ();

ProcessStarter.setGlobalSearchPath ( myPath );

}

ConvertCmd convert = new ConvertCmd ();

IMOperation operation = new IMOperation ();

String input = inFile.getAbsolutePath ();

int tmbWidth = dimInfo.getWidth ();

int tmbHeight = dimInfo.getHeight ();

operation.addImage ( input );

operation.gravity ( LocalProperties.getPropertyValue ( "render.image.gravity" ) );

operation.thumbnail ( tmbHeight, tmbWidth );

operation.units ( LocalProperties.getPropertyValue ( "render.image.units" ) );

operation.density ( Integer.parseInt ( LocalProperties.getPropertyValue ( "render.image.density" ) ) );

operation.strip ();

operation.interlace ( LocalProperties.getPropertyValue ( "render.image.interlace" ) );

operation.gaussianBlur ( Double.parseDouble ( LocalProperties.getPropertyValue ( "render.image.gaussian.blur" ) ) );

operation.quality ( Double.parseDouble ( LocalProperties.getPropertyValue ( "render.image.quality" ) ) );

File retVal = new File ( outputDir, fileName );

operation.addImage ( retVal.getAbsolutePath () );

convert.run ( operation );

logger.debug ( "Preview file: " + retVal.getAbsolutePath () );

return retVal;

}

Install Latest ImageMagick to support PNG, JPG convertions

 #These are the steps required in order to Install ImageMagick with JPG, PNG and TIFF delegates.

sudo apt-get update 

#Install Build-Essential in order to configure and make the final Install

sudo apt-get install build-essential 

#libjpg62-dev required in order to work with basic JPG files

sudo apt-get install -y libjpeg62-dev 

#libtiff-dev is required in order to work with TIFF file format

sudo apt-get install -y libtiff-dev 

#libpng-dev required in order to work with basic PNG files

sudo apt-get install -y libpng-dev

#Download ImageMagick

wget https://www.imagemagick.org/download/ImageMagick.tar.gz 

#Untar Imagemagick

tar xvzf ImageMagick.tar.gz 

#Access the working directory

cd ImageMagick-[version_number] 

#Configure and make sure to disable the "shared" option

./configure --disable-shared

#Make

sudo make

#Install

sudo make install

#Final Check

sudo make check

Java Dynamic Method Call with params by using reflection

package com.product.rpa.api.ws;

import java.lang.reflect.Method;

public class DynamicMethodCall
{
public String sample ()
{
return "vijay";
}

public String sampleWithParam ( String x )
{
return x + " " + x;
}

public String sampleWithMultipleParams ( String x, int i )
{
return x + " " + i;
}

public static void main ( String args[] ) throws Exception
{
DynamicMethodCall dynamicMethodCall = new DynamicMethodCall ();

// with out param
Method method = dynamicMethodCall.getClass ().getMethod ( "sample" );
String result = (String) method.invoke ( dynamicMethodCall );
System.out.println ( result );

// with param
// String parameter
Class [] paramString = new Class[1];
paramString[0] = String.class;

method = dynamicMethodCall.getClass ().getMethod ( "sampleWithParam", paramString );
result = (String) method.invoke ( dynamicMethodCall, "hi - param" );
System.out.println ( result );

// with multiple params
// String parameter
paramString = new Class[2];
paramString[0] = String.class;
paramString[1] = Integer.TYPE;

method = dynamicMethodCall.getClass ().getMethod ( "sampleWithMultipleParams", paramString );
result = (String) method.invoke ( dynamicMethodCall, "hi - ", 100 );
System.out.println ( result );

}
}

PHP - Aes-256-cbc Encrypt Decrypt with IV vector

function encrypt_decrypt($action, $string) {
    $output = false;
    $encrypt_method = "aes-256-cbc";
    $secret_key = 'abcdefghi1234567890';
    $secret_iv = '';
 
// hash
    $key = hash('sha256', $secret_key);
    echo "

".$key;

    // iv - encrypt method AES-256-CBC expects 16 bytes - else you will get a warning
    $iv = substr(hash('sha256', $secret_iv), 0, 16);
    if ( $action == 'encrypt' ) {
        $output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv);
        $output = base64_encode($output);
    } else if( $action == 'decrypt' ) {
        $output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv);
    }
    return $output;
}
$plain_txt = "I am vijay";
echo "

Plain Text =" .$plain_txt. "\n";
$encrypted_txt = encrypt_decrypt('encrypt', $plain_txt);
echo "

Encrypted Text = " .$encrypted_txt. "\n";

$decrypted_txt = encrypt_decrypt('decrypt', $encrypted_txt);
echo "

Decrypted Text =" .$decrypted_txt. "\n";

if ( $plain_txt === $decrypted_txt ) echo "

SUCCESS";
else echo "

FAILED";
echo "\n";

?>



Output

Plain Text =I am vijay

681448fb66d8704c7d52f6770f6087882db21c899fe48d21012a587bbe70cdd3

Encrypted Text = THRtUkJYWFUzb1NzUFRoOUw5T3Q2UT09

681448fb66d8704c7d52f6770f6087882db21c899fe48d21012a587bbe70cdd3

Decrypted Text =I am vijay

SUCCESS

Git or bitbucket checkout public key - Self signed certificate issue

git-Checkout
************

1. generate your self signed private key from "putty-gen.exe" or "open ssl" etc..
    > generate new key
    > save private key ex: D:/drvijay/self-private.ppk


2. type  the below command in cmd 1. to ignore ssl verify, 2. add your self certificate , 


3. check out 

    > git config --global http.sslverify false
    > git config --system http.sslCAPath D:/drvijay/self-private.ppk

    > git clone https://@url/repo.git
    > pwd: test123


-- Enjoy

Enable SSL Https in Tomcat

1. Generate Keystore

First, uses “keytool” command to create a self-signed certificate. During the keystore creation process, you need to assign a password and fill in the certificate’s detail.

$Tomcat\bin>keytool -genkey -alias mkyong -keyalg RSA -keystore c:\mkyongkeystore
Enter keystore password:
Re-enter new password:
What is your first and last name?
  [Unknown]:  yong mook kim
What is the name of your organizational unit?
  //omitted to save space
  [no]:  yes
 
Enter key password for <mkyong>
        (RETURN if same as keystore password):
Re-enter new password:
 
$Tomcat\bin>

Here, you just created a certificate named “mkyongkeystore“, which locate at “c:\“.

Certificate Details
You can use same “keytool” command to list the existing certificate’s detail

$Tomcat\bin>keytool -list -keystore c:\mkyongkeystore
Enter keystore password:
 
Keystore type: JKS
Keystore provider: SUN
 
Your keystore contains 1 entry
 
mkyong, 14 Disember 2010, PrivateKeyEntry,
Certificate fingerprint (MD5): C8:DD:A1:AF:9F:55:A0:7F:6E:98:10:DE:8C:63:1B:A5
 
$Tomcat\bin>

2. Connector in server.xml

Next, locate your Tomcat’s server configuration file at $Tomcat\conf\server.xml, modify it by adding a connector element to support for SSL or https connection.
File : $Tomcat\conf\server.xml

 //...
 <!-- Define a SSL HTTP/1.1 Connector on port 8443
         This connector uses the JSSE configuration, when using APR, the 
         connector should be using the OpenSSL style configuration
         described in the APR documentation -->
 
 <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
               maxThreads="150" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS" 
        keystoreFile="c:\mkyongkeystore"
        keystorePass="password" />
  //...

Note
keystorePass="password" is the password you assigned to your keystore via “keytool” command.

 

 

3. Done

Saved it and restart Tomcat, access to https://localhost:8443/

In this example, we are using Google Chrome to access the Tomcat configured SSL site, and you may notice a crossed icon appear before the https protocol :), this is caused by the self-signed certificate and Google chrome just do not trust it.
In production environment, you should consider buy a signed certificate from trusted SSL service provider like verisign/digicert or sign it with your own CA server