TWoZaO - The World of Zeros and Ones

Connect to Internet In Android Emulator Under Proxy Server

nelamurugan@gmail.com (Pavo Fethers Team) — Wed, 8 Dec 2010 23:53:00 +0530

Generally when using Android Emulator, if you are not under any proxy servers, then the device by itself finds the DNS server and connects to the Internet without any problems. The problem of connection raises only when you are under proxy servers. The major reasons why this happens is that, your device cannot find the ip address to which it must connect and what the DNS servers that are available for the connection. So you must update the device with these information.

While starting the emulator itself you can pass the dns servers and your http proxy server credentials as parameters to the 'emulator' start command. So the command looks likes this.

emulator -avd -dns-server -http-proxy -debug-proxy

So the real command may look like:

emulator -avd HVGA -dns-server 208.56.45.23, 209 .34.45.23 -http-proxy http://192.168.10.2:8080 -debug-all

HVGA is a example device name

In the place of for dns servers, you can enter upto 4 dns server address separated by commas.

In the place of you can use the ip address of your proxy with the Port number to connect to it.

If you got username and password to connect to your proxy server for authentication. You have got provision for that too. In the command you must pass your username and password as

-http-proxy http://username:password@192.168.10.2:8080

You can also pass -debug-all or -debug-proxy to get the error report of the connection.

If you are using Eclipse IDE for your development, then you need to supply this parameters in

Eclipse Preference -> Android -> Launch -> Default Launch Options.

That's it, now you can start your emulator and find Internet is connecting to it.

You can also set the proxy address and dns server details in your emulator by another way.

By default, Android SDK searches for the DNS server details from resolv.conf file.

On Linux and OS X, the emulator obtains the DNS server addresses by parsing the file /etc/resolv.conf. On Windows, the emulator obtains the addresses by calling the GetNetworkParams() API. Note that this usually means that the emulator ignores the content of your "hosts" file. (/etc/hosts on Linux/OS X, %WINDOWS%/system32/HOSTS on Windows).

So first make sure that resolv.conf file is present in the desired location, if not make a symbolic link of the fie to the location where the device searches for the resolv.conf file.

To find the present location of the resolv.con file use the following command.

locate resolv.conf

It will list few matched files, choose the one which you want. The contents of the resolv.cof file will be some thing like this.

#
# Mac OS X Notice
#
# This file is not used by the host name and address resolution
# or the DNS query routing mechanisms used by most processes on
# this Mac OS X system.
#
# This file is automatically generated.
#
domain TWOZAO
nameserver 203.145.184.32
nameserver 192.168.10.1

Make a symbolic link to this file from /etc.

ln /path/to/current/resolv.conf /etc/resolv.conf.

Now you made your emulator to find the DNS servers and you can set the proxy
address in your device, Go to Menu -> Settings -> Wireless & Network
Settings -> Mobile Networks -> Access Point Names.

There you can select the APNs and you can fill the proxy address and its port number, username and password there.

Please don't forget to post your comments.

Load Youtube toprated videos using simplexml_load_file PHP

nelamurugan@gmail.com (Pavo Fethers Team) — Mon, 9 Aug 2010 19:30:00 +0530

In this post I will show you how to fetch the you tube top rated videos just with built in PHP functions instead of using zend data api libraries. Zend data api is the best and optimized way to do this task but rather than including and working with zend and zend data api you can just do this with php built-in functions by reading the you tube feeds for the top rated videos.

So here we go.
General feed url of youtube is

http://gdata.youtube.com/feeds/api/standardfeeds/FEED_IDENTIFIER

Youtube feeds URL for the top rated videos is
http://gdata.youtube.com/feeds/api/standardfeeds/top_rated

Here you can replace top_rated with

Fore more info regarding this

http://code.google.com/apis/youtube/2.0/developers_guide_php.html

So we have to read the feeds from the above url, then you can display it where ever you want.

We have the top rated videos as xml so we need to parse it using php function "simplexml_load_file() " .
To do this in php.ini we need to enable the url include option to On if it is not already turned on.

Get the feeds in a variable

$url="http://gdata.youtube.com/feeds/api/standardfeeds/top_rated";
$comments =simplexml_load_file($url); // Php built in function

So we have top rated videos in $comments , we need to parse it using foreach and display it in the following way.

Here the feed is in yahoo feed format so you to mention the feed as yahoo and then you can parse the media group under entry tag.

$media = $video->children('http://search.yahoo.com/mrss/');

So from this we can easily parse all the data from the youtube feeds.

Download the source for your reference.

You can also do all other functionality like searching a video or displaying particular video comments, recent videos and more using the above method. Its very easier than the zend data api. Try it out. Leave the comments if you have any problem

Create a New ZenCart Payment Module with Sample Module Source Code

nelamurugan@gmail.com (Pavo Fethers Team) — Sat, 7 Aug 2010 19:01:00 +0530

1. Introduction:

There are several payment modules in zen cart. You can find them under Admin > Modules > Payment in the admin panel. Many of them are for payment gateways where the customer's credit card is authorized automatically while they are online, and payment is deposited to your merchant bank account (which you set up with your bank) automatically.

Zen Cart as gateways built-in for:

1. Authorize.net AIM (SIM also supported, but AIM is recommended for its security benefits)

2. PayPal Website Payments Standard (IPN)

3. PayPal Express Checkout

4. PayPal Website Payments Pro

5. LinkPoint API

6. YourPay API

as well as:

C.O.D. - Cash On Delivery.
Check/MoneyOrder

2. File Structure:

Payment modules must contain two compulsory files.

1. The payment class is stored in

includes/modules/payment/.php

2. while all text is stored in the appropriate language file

includes/languages//modules/payment/.php

3. The response from the payment server is handled by the files

_response_handler.php

You can download the source of the sample Zen-Cart Payment Module

3. Anatomy of a Payment Module:

The payment class must override some of the following pre defined functions in zencart payment module. So a payment class must contain definitions for the following classes.

Constructor Method

In the Constructor method, the modules initialization must be done. Set the class code, title, description, sort order and status of the module.

update_status Method

This method will be called whenever the status of the module in the admin panel is changed. Here the currency type and zone of the shop can be checked each time of update.

javascript_validation Method

Validate the user input submitted on checkout_payment.php with javascript (client-side). Example: validate credit card number, make sure required fields are filled in

selection Method

This method can be overridden to retrieve required information from the form before submit. Example: ask for extra fields (credit card number), display extra information

pre_confirmation_check Method

This method will be called before processing the checkout confirmation page (i.e, on calling the checkout_process.php). Here check if credit card information is right before sending the info to the payment server

confirmation Method

In this method check for the products details and payment information and execute before displaying the checkout confirmation page

process_button Method

This is the main function, which sends the needed informations to the payment server on submitting the payment form. Examples: add extra hidden fields to the form that are required by the server as POST to perform the transaction.

before_process Method

This method will be executed before processing the order. Check all the parameters before forwarding to checkout confirm page. Examples: retrieve result from online payment services

after_process Method

After processing, the confirmation of checkout this method will be called.

after_order_create Method

This is the last step in processing the check out. Here the orders are taken and the items in the cart are removed to customer purchase table and the products table is updated and successful shopping mail is send to the customer and the store owner.

get_error Method

If an error occurs with the process, output error messages here

check Method

This method is called every time this module is accessed, to check whether the module is in active state.

install Method

If the ‘check method’ returns, status of the module as removed or uninstalled. A install button will be displayed in the admin panel. On clicking on the install() button this install method will be called. The zen cart configuration table will be updated with the information such as module code, title, description and other required parameters of the module.

remove Method

After installing the module, remove button will be displayed on top of the module in admin panel. On clicking on that remove button the rows related to this modules in the zen-cart configuration table will be removed.

PHP script to move files from shared hosting to amazon S3 Buckets

nelamurugan@gmail.com (Pavo Fethers Team) — Wed, 4 Aug 2010 14:45:00 +0530

PHP script to move files from shared hosting to amazon S3 Buckets

In this article i am going to explain how to copy/move all the files from your shared hosting server to amazon s3. Getting s3 access and how to use it tutors are so many there on net. Try to access those else it will be explained later.

Amazon S3 is really great service to store and retrieve large amount of data with less cost and great security.Shared hosting means most of us are using storage space of 2GB Or 4gb server and that too shared by so many people, so its not only for you. This is not applicable if you are using dedicated server only for you but still you can try out amazon s3 service.

Advantage of doing this task is really great. Here it is....

Eg:

You have 20000 images or some documents that you always giving access to the people to check out. In such case if you are using shared hosting server surely your site will be dead slow to the people who all are accessing. If all the files are coming from some other server then your server only need to present the design then it will be great experience to surfing people. That other server is going to be amazon s3 of-course there are so many services are there for this one but amazon as3 is good. So lets try it.

This full tutorial is based on the s3 php class from http://undesigned.org.za/2007/10/22/amazon-s3-php-class, which is very easy to connect to S3 Service and access files/edit/delete/upload files to and from the s3. Download the class and follow thew instructions. and alos i have uploaded a copy of my work which will be helpful for you to do it. try that also.

So lets expand it to upload all your files from the shared hosting server to amazon S3.

In my case i have more than 20000 images in a folder called "[ROOT]inventory/images/" and this number keep on increasing daily. So i planned to move all the files to amazon s3. But here we have a problem, we cant copy all the files at one stretch because its >20,000, so its possible by running it part by part. Either by cronjob or by manual execution. Do s you want and use my script if it is useful for you.

I stored all the file names in a table on database by listing files using the following command. create a table with filename, flagid (which is for task completion and keep it default as 0).

First run the imagelist.php to store all the files in table, then run the imageupload.php. It will upload only 100 images each time to the server,by using limit command. Once the upload process is over update the flag field to 1, so next time it wont be uploaded or even you can delete this field. Its upto you to handle it.

More on this class- here is documentation http://undesigned.org.za/2007/10/22/amazon-s3-php-class/documentation

You can get the copy the source here

Download

Change the db settings and change the table fields as per your need and run it on your server. This tutor is based on nettuts tutor, thanks to nettuts.

http://net.tutsplus.com/tutorials/php/how-to-use-amazon-s3-php-to-dynamically-store-and-manage-files-with-ease/

Its really some risky task so be careful on working on this. Please comment on it to improve more,and share this post....

Basic Scripts to find Browser Properties in Javascript

nelamurugan@gmail.com (Pavo Fethers Team) — Thu, 8 Jul 2010 15:12:00 +0530

Some times we may get into a need to write browser depended scripts and Css. To handle those situations, here i have got a collection of few important and useful JavaScript functions that contribute to detection of the properties of client browser such as finding the browser type, version, OS used, monitor width , height, color resolution and so on. Using the 'navigator' object we can obtain most of the browser properties.

Here is a demo for you to find the properties list of your browser with its corresponding JavaScript functions.

Demo Download

To view all the properties related to 'navigator' object use can use the following script.

<script type="text/javascript">
   for (i in navigator)
   {
       document.write('<br>navigator.' + i + ' = ' + navigator[i]);
   }
</script>

This small piece of information can help us a lot in most of the situations. You can use the following script to find the various browser such as Firefox, IE, Opera, Chrome, safari, and even mac system with its exact version to perform some of the browser depended functionality.


  var agt=navigator.userAgent.toLowerCase();
  var major=parseInt(navigator.appVersion);
  var mac=(agt.indexOf("mac")!=-1);
  var ff=(agt.indexOf("firefox")!=-1);
  var ff0=(agt.indexOf("firefox/0.")!=-1);
  var ff10=(agt.indexOf("firefox/1.0")!=-1);
  var ff15=(agt.indexOf("firefox/1.5")!=-1);
  var ff20=(agt.indexOf("firefox/2.0")!=-1);
  var ff3up=(ff&&!ff0&&!ff10&!ff15&!ff20);
  var nn=(!ff&&(agt.indexOf("mozilla")!=-1)&&(agt.indexOf("compatible")==-1));
  var nn4=(nn&&(major==4));
  var nn6up=(nn&&(major>=5));
  var ie=((agt.indexOf("msie")!=-1)&&(agt.indexOf("opera")==-1));
  var ie4=(ie&&(major==4)&&(agt.indexOf("msie 4")!=-1));
  var ie5up=(ie&&!ie4);
  var op=(agt.indexOf("opera")!=-1);
  var op5=(agt.indexOf("opera 5")!=-1||agt.indexOf("opera/5")!=-1);
  var op6=(agt.indexOf("opera 6")!=-1||agt.indexOf("opera/6")!=-1);
  var op7up=(op&&!op5&&!op6);

Your Feedbacks are welcomed!

Previous & Next Functionality with PHP, AJAX, JQuery and MySQL

nelamurugan@gmail.com (Pavo Fethers Team) — Thu, 10 Jun 2010 15:43:00 +0530

Here i have designed a very simple application to fetch data from mysql server with php, through Ajax. In this application i have used two image input component for previous and next functionality and a table to display the data. Here is the preview of the application.
On clicking the next button, next set of data with the specified limit is fetched from the database through Ajax and displayed in the table, vice versa for the previous button. The limit parameter can be changed at any time by changing the limit value.

You can download the application:
In db.php file, you can change the limit of data to fetch from the server. The design goes in the index.php file and the core of the application lies in the prevnext.js file.

On clicking the next button, the ajax function is called through this JQuery function

$("#next").click(function(){
  var current = parseInt($("#currenthid").val()) + limit;
  var data="current="+current;
  $.ajax({
         type:"POST",
         url:"ajaxpost.php",
         data:data,
         cache:false,
         success:function(html){
                $("#showtable").html(html);
                $("#currenthid").val(current);
                checkVisible();
          }
    });
});

It sends the index of the next set of data to fetch, to the ajax function. On success the data in the view is updated and the index of current data set is updated. The checkVisible function is to ensure the next previous functionality. i.e, the Next button will be disables on reaching the last data set and the previous button will be disable on reaching the first data set.

  function checkVisible(){
    var current = parseInt($("#currenthid").val());
    var total = parseInt($("#totalhid").val());
    $("#previous").css('display','block');
    $("#next").css('display','block');
    if(current <>= total) {
        $("#next").css('display','none');
    }
}

In the ajaxpost file the MySql database fetch is executed.

$limitquery = "select id,name,category,price,discount from previousnext limit ".(int)$_REQUEST['current'].",".$limit;
$result = mysql_query($limitquery, $dbHandle);

The data send from sql server is parsed in the php file and send to the client.

while($row = mysql_fetch_array($result)){
    echo "
    ".$row['id']."
    ".$row['name']."
    ".$row['category']."
    ".$row['price']."
    ".$row['discount']."
    ";
}

In the next post i have planned to expand this application to have pagination. Donot forget to comment on my ideas.

Steps to Install and Connect to PHP in Flex using AMFPHP

nelamurugan@gmail.com (Pavo Fethers Team) — Sun, 16 May 2010 20:17:00 +0530

If you are bored of using XML to transfer data from PHP to Flex, then here is a end for your boredom. Using AMFPHP, you can convert data object in PHP to dataobject in action script so that you can use that in your flex project.

Download Source:

Here are the steps to install and integrate AMFPHP with Flex.

First of all download AMFPHP, depending upon the platform and os you are using. Then unzip the downloaded file,rename it to amfphp and place it in the root folder of your web server.
To make sure amfphp is working correctly, go to http:/localhost/{amfphp}/gateway.php if you are working in local or use your server name instead of localhost.
If you get the success message, then go ahead or look into the documentation for additional configurations.
Then create a new flex project, with server type as PHP. Enter your valid web root and base url.
Create a file called service-config.xml and save in the src folder. You can get the content of this xml file from the download source package.
In the main mxml file, the data object from php is received through RemoteObject class in flex as

< mx:remoteobject id="amf" source="AMFPHPConnect.Connect" destination="amfphp" > < mx:method name="testConnection" result="onConnect(event)" > </mx:method > </mx:remoteobject >
Don't forget the give the same name for remote object destination and service-config.xml destination id.
Give the correct path for the gateway.php file in the channels tag.

<channels>
<channel-definition id="my-amfphp" class="mx.messaging.channels.AMFChannel">
<endpoint uri="http://{webroot}/amfphp/gateway.php" class="flex.messaging.endpoints.AMFEndpoint"/>
</channel-definition>
</channels>
Create a simple php file and place it inside the 'services' folder inside amfphp installation. Under the a folder 'AMFPHPConnect' and name the php file 'Connect.php'.
So that you can give the source for the RemoteObject class as 'AMFPHPConnect.Connect'.
To call a method in the php file use <method> tag as
<mx:method name="testConnection" result="onConnect(event)" />
Before compiling the project, you must intimate the compiler that you are using amfphp, by specifying the compiler argument as shown.
Then the output will be something like this:

FFMPEG Installation Step by step guide in centos

nelamurugan@gmail.com (Pavo Fethers Team) — Sat, 10 Apr 2010 19:07:00 +0530

FFMPEG Installation Guide

FFMPEG is an open source application and developed under Linux that allows you to convert video and audio files easily between a variety of different formats. It supports most industry-standard codec and can convert from one file format to another quickly and easily.It includes libavcodec, a leading audio/video codec library. FFmpeg can compile under most Operating Systems, including Windows.

Download the detailed FFMPEG installation guide in centos as pdf

You can use this powerfull tool using any scripting language server side execute functions once you installed in your server.

In php

shell_exec(“command, parameters”);

the following flow chart explain you how it works with php

This article will guide you to installing FFMPEG and other codec on Linux(centos 5).

FFMPEG Installation Requirements

· LAME Mp3 Audio Codec (Requred for mpg, flv, avi, wmv etc files)

· FFMPEG ,mplayer,mencoder, flvtool2

· FFMPEG-PHP

More Advantage When you installed these components

· AMR Audio Codec (Required for 3gp video files)

· XVID Audio Codec

Note :

You need to know how to use yum,rpm,wget commands well and these commands should be configured in the server in which you are going to install ffmpeg.

· Make a note of what you are doing for future reference when ever you are facing problems

· These steps are worked well for me and and am not sure how about for you, so please make some backup when ever you modifying your system files.

Go ahead.....

Installation Steps

It is a good practice to install all the external audio codec libraries first and then install the FFMPEG.

So now you need to connect to your server using any ssh tool like putty by giving server name , username, password.

cd /usr/

Create a directory for all the further steps

mkdir downloads

Move into downloads directory

cd downloads

Installing LAME MP3 Encoder

Download LAME Mp3 Codec download URL : Lame Mp3 Codec

· Untar the lame file by using tar zxvf lametarfile

· Assign 777 permission rights to the lame folder by typing chmod 777 lamefolder -R

· Traverse to the root of lame folder and type

wget http://easynews.dl.sourceforge.net/sourceforge/lame/lame-3.97.tar.gz

Extract the archive:
tar -xjf lame-3.97.tar.gz

cd lame-3.97
./configure
make
make install

Installing – Ffmpeg

Adding the DAG repository is simple. I’m using yum, so I did the following to add the repository:

1. Create and open a new file called /etc/yum.repos.d/dag.repo.

vi /etc/yum.repos.d/dag.repo

2. Add the following text to the file:

[dag]

name=DAG RPM Repository

baseurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/dag

gpgcheck=1

enabled=1

3. Finally, save and close the file.

In order to successfully use the DAG repository with tools such as yum, you need to add DAG’s GPG key. Failure to do so will result in an error like the following:

warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 6b8d79e6

Public key for faac.x86_64.1.26-1.el5.rf.rpm is not installed

In order to add the GPG key for DAG, run the following:

rpm --import http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txt

Or if you dont need key validation just make gpgcheck=0 in the above dag.repo file

So Now that DAG is setup, it’s a good idea to update all your packages.

# yum update

Now you are ready to install FFmpeg with yum. I wanted to install all the available FFmpeg packages, so I first asked yum what was available.

# yum search ffmpeg

Searching through the results, I found that three packages need to be installed: ffmpeg, ffmpeg-devel, and ffmpeg-libpostproc.

# yum install ffmpeg ffmpeg-devel ffmpeg-libpostproc

install supporting packages – mplayer,mencoder, flvtool2

yum -y install mplayer mencoder flvtool2

Preparing for ffmpeg-php

I often work with programs through command line calls in code, but I wanted something more robust this time, so I looked around and found ffmpeg-php. Based on the API, it looks to be a great tool to interface PHP and FFmpeg.

There are four things that are required to successfully install and run ffmpeg-php; they are:

· ffmpeg-0.4.9_pre1 or higher

· php-4.3.0 or higher

· gd-2.0 or higher

· php-devel

Run the following

yum install php-gd

In case you are wondering what php-devel is for, it installs the phpize program which is used to install ffmpeg-php.

Installing ffmpeg-php

Now we are ready to install ffmpeg-php.

This can be done in six easy steps:

1. Download the latestet ffmpeg-php from http://sourceforge.net/projects/ffmpeg-php/files/ffmpeg-php/

wget http://sourceforge.net/projects/ffmpeg-php/files/ffmpeg-php/0.6.0/ffmpeg-php-0.6.0.tbz2/download

2. Extract the archive:
tar -xjf ffmpeg-php-X.x.x.tbz2

3. cd ffmpeg-php-X.x.x/

4. phpize

5. ./configure && make

6. sudo make install

It will copy the ffmpeg.so module in php default module location. Now you have to edit php.ini file to enable ffmpeg-php support in it by using ffmpeg.so module.

vi /etc/php.ini

and append following line

extension=ffmpeg.so

Restart apache service to take effect of php.ini

/etc/init.d/httpd restart

Run following command to ffmpeg module listing in php.

php -m | grep ffmpeg

For more about ffmpeg-php functions – documentation

http://ffmpeg-php.sourceforge.net/doc/api/ffmpeg_movie.php

Now you should be ready to convert any video to any video format and still more, Have a nice streaming.

Test it out using

ffmpeg -i videofilename.extension

You will be getting some message and info about the input file

Installing advanced ffmpeg supporting components

AMR Audio Download URL AMR Audio Codec
To install the AMR codec you will require both AMR-WB and AMR-NB files.

XVID Audio Download URL: XVID Audio Codec

Installing AMR Codec
For installing the AMR codec there are two separate files that needs to be installed are AMR-WB and AMR-NB.

· Untar the AMR file by using tar zxvf tarfile

· Assign 777 permission rights to the amr folder by typing chmod 777 amrfolder -R

· Traverse to the root of amr folder and type
./configure
make
make install

Note on Installing AMR:
You might get errors installing AMR codec on Autoconf utility of linux. To resolve this problem will have to install the latest version of Autoconf utility

Dwonload AutoConf from Here

Installing Xvid Codec

· Untar the xvid file bu using tar zxvf tarfilename

· Assign 777 permission rights to the lame folder by typing chmod 777 xvidfolder -R

· Traverse to the root of xvid folder

· Goto Build/generic folder and type
./configure
make
make install

Leave A comment If you are facing any problem. Have a happy encoding and streaming, we will see set of streaming tutorials in next tutors.

Displaying Products without Duplication in Zen cart for multiple Language

nelamurugan@gmail.com (Pavo Fethers Team) — Tue, 16 Mar 2010 12:31:00 +0530

In Zen cart, if multiple languages are enabled. In the front end the product name and its descriptions changes depending upon the language chosen. To achieve that the shop owner must add product name and description for each language enabled. By that each entry gets updated in the database as a new product. So when observed in the front end, single product is shown multiple time depending upon the languages enabled.

To avoid this and show only only entry for each image and change the description on changing the language the database query must be modified. Let me explain changing the 'New Products module'. Edit the file zencart installation -> includes -> modules -> your template -> new product.php. In that file there will be a database query similar to

$new_products_query = "select p.products_id, p.products_image, p.products_tax_class_id, p.products_price, p.products_date_added, pd.products_description  from " . TABLE_PRODUCTS . " p left join " . TABLE_PRODUCTS_DESCRIPTION . " pd on p.products_id = pd.products_id where p.products_status = 1 " . $display_limit;

Replace that code with this query

$new_products_query = "select p.products_id, p.products_image, p.products_tax_class_id, p.products_price, p.products_date_added, pd.products_description  from " . TABLE_PRODUCTS . " p left join " . TABLE_PRODUCTS_DESCRIPTION . " pd on p.products_id = pd.products_id inner join " . TABLE_LANGUAGES . " l on pd.language_id = l.languages_id where p.products_id = pd.products_id and l.name = '" . $_SESSION['language'] . "' and p.products_status = 1 " . $display_limit;

Changes made in the Query:

In $_SESSION the language chosen by user will be stored depending on that, from the language table the language id is retrieved and the products are displayed with reference to the language id.

Output for French:
Output for German:

Please Feel free to comment on this post.

Urgently need little amount in your paypal account and don't you have credit card

nelamurugan@gmail.com (Pavo Fethers Team) — Tue, 23 Feb 2010 20:15:00 +0530

There are many plus points in paypal. Its gives a great transaction facility account. For whatever purchasing site you go, you can find the way "purchase using your paypal account". Its easy and also free to get a account in paypal. Create one by clicking here

But a small drawback in paypal is, it not supports debit cards. If you register your credit card with the paypal account, paypal gives you unlimited transaction or else the maximum transaction will be only $500. Many who doing small business or using paypal for personal transaction wont have credit card along with them. In that case there is some other way to activate the unlimited transaction.

Nearly most of the banks provide the facility called Netcard or Virtual credit card. These type of cards works as like the credit card. Below are the simple steps to integrate your netcard along with your paypal account.

1. Generate netcard of worth Rs100(INR) or $1.95

2. Goto your paypal account and under MyAccount-->profile--> add/Edit Credit card

Fill the card number that has been given in your netcard
Next fill the expiry date

It asks for three digit CV number, you can find it below the netcard

3. After adding this details just give continue. Paypal will send 4 digit pin number related to your netcard to your netbanking in which you have created the netcard.
4. you can find the the 4 digit number in your netbanking account--> netcard details-->

In my case the 4 digit number is 3902.

5. Confirm your card in paypal account by giving this 4 digit number.

Now the credit card has been integrated in your paypal account. But remind that you can't use this netcard even further transaction even in paypal account too, because its an vitual card sending money to this netcard is not allowed. So forget about the netcard that you have created after the successful confirmation in paypal.
Now the amount you have used to creat a netcard 1.95$ will be sent to your paypal account. IN your paypal at the beginning you will have $1.95. The great feature that missing in the paypal, we can't transfer even a single penny from our debit card to paypal account.
Paypal allows transaction from one paypal to another paypal account, paypal to your bank account, paypal to your credit card(real credit card not a netcard).
So if we need money in your paypal account, someone who has paypal account only can send to you. Or else there is some dumb ways to get little amount in your paypal. The way that is creating netcards for each $1.95. (eg., if you need 5.6$ in your account you wanna create three netcards of each $1.95). By means of the same way that we seen above "Add/Edit Credit card" we can add as many number of cards to our paypal account. So adding 3 credit cards and by confirming that three cards in your paypal account. The amount $1.95 will be added for each card in your paypal account.

We can't use this netcard transaction for bulk amounts. If you have patience of creating many netcards and confirming with paypal account go ahead. But it somewhat time consuming process.

Contrexx Theme Creation

nelamurugan@gmail.com (Pavo Fethers Team) — Tue, 9 Feb 2010 14:22:00 +0530

1. Introduction:

Before start creating the Contrexx themes, one must get familiarized with the file structure that is being followed in Contrexx cms. All the theme file will be placed inside the 'themes' folder in the project folder. After the fresh installation, one could see four folders inside the themes folder. Each folder symbolize a theme.

2. Layout and Design:

To view the list of themes and its related files login in to admin panel and get into Administration → Layout & Design. In the overview section you can see the list of themes that are included in that project. The active theme is mentioned as '(Default)' in that list.

3. Create a New Theme:

Start Creating a new theme from Administration → Layout & Design → New Theme. Here you create a theme from the already exsisting theme file. If you already have a Theme folder, just copy that folder to 'themes' folder inside your contrexx installation. Then select the 'use exsisting directory in the backend' and you can see the folder name that you copied in the themes folder. Select that theme and click 'Create' button. So that a new theme will be installed. Or else you can create a new theme from scratch or from the template already in your contrexx installation.

To create a new theme from scratch give the name for your theme in 'New name of directory' and if you want theme from template, select those from the select available at the right side. Or else leave it as default and click create.
4. Activate the New Theme:

Now Click on the Activate tab, placed above this table. There you can see a list of languages and their corresponding selected themes. You can see four types of templates there.

Active PDF Template:
Active Printview Template:
Template for Mobile Device
Active Template

Each thing contributes to different view. Such as PDF, Print, Mobile view and for web site view respectively. Now Let us concentrate on the Active Template for the Web site view. And also We can have different themes for different languages. The default language will be highlighted with the rose background. In Active Template of the default language select the theme that we added now in the 'New Theme' Section and Save the page.

If you have chosen a exsisting template you can see the new design in the front end or else you will get a error in the front end stating 'Variable placeholder 'CONTENT_FILE' not found'. In the later sections we can see why this error occurs.

5. Placeholders:

The placeholders plays a major role in the template creation. There are some must know predefined place holders such as

NAVBAR_FILE
CONTENT_FILE
CONTENT_TITLE
CONTENT_TEXT
SUBNAVBAR_FILE

These placeholders includes the corresponding content to this file. For example the NAVBAR_FILE includes the navigation bar to the file where ever it is used.

6. Index.html

The Whole Template gets included in the index.html file only. It contains the header and the footer information. NAVBAR_FILE is included in the header. Here the CONTENT_FILE is a compulsory palceholder. Because that is the only while includeds the contents to the template. If you are in the home pahe home.html is included or if you are in the sub pages, corresponding subpage content from content.html is included through this CONTENT_FILE. CONTENT_TITLE and CONTENT_TEXT fetches the corresponding page's content and title from the content manager in the sub pages.

7. Content Manager:

In the Content manager section you can create new pages and add contents to those pages and on saving that, all the changes will be reflected in the front end dynamically through the placeholders that we have used.

8. Stylesheets:

The style.css is the main stylesheet file that is linked to index.html file. The general styles of the html entities can be written in this file. And style for home page contents, subpage contents, navigation bar, sub navigation bar can be written seperately in home_layout.css, content_layout.css, navbar.css and subnavbar.css respectively and these stylesheets can be imported in the styles.css file.

9. info.xml

After succesfully creating the theme edit the info.xml file which will contain the information about the author, company and version of the theme. These things can be seen in the import/export section in the administration → Themes.

Signup Form with Jquery Validation - Email,username validations

nelamurugan@gmail.com (Pavo Fethers Team) — Sat, 30 Jan 2010 14:57:00 +0530

Description

Signup form is used to give user to create account in our site. So it needs to be very clear in design and should be val;idated from client side itself.

Here is the full example of making such a form with full js validation using jquery.

How to use:

You need to change some of the fields and messages as per your specifications and design.

Edit stylesheet and,html,js files in the Signup folder and use it for your signup form.

Output

Here is the two scrrenshots shows the output.

Before validating

After validating

And here You can Download the Source.

Fresh Installation of contrexx CMS

nelamurugan@gmail.com (Pavo Fethers Team) — Tue, 19 Jan 2010 17:19:00 +0530

1. Introduction:
Contrexx is a powerful Open Source Web Content Management System (WCMS) which will assist you in the creation, administration and maintenance of contents for the inter-net or intra-net. It's a completely web-based system with an easy-to-use WYSIWYG editor and intuitive user interface. Contrexx is very flexible, by adding modules you can customize the CMS according to your individual demands and it requires no technical knowledge or previous training.

2. Pre – Installation:
Installation of contrexx cms requires a working web server such LAMP, XAMP or WAMP. If have you got a correctly configured web server continue downloading the source package from Contrexx – Download. Unzip the downloaded source zip to DocumentRoot(Generally DocumentRoot means '/var/www/') of your web server. Rename the unzipped folder to contrexx. By Default, all the installation files comes inside of /contrexx/CMS_FILES, move all those files to the /contrexx (this step is optional).

3. Installation:
Now point your browser to the location where you unzipped the files. In my case it is http://192.168.2.58/gowri/Project/contrexx/.
Now you can see a installation welcome screen. On the next screen you will be asked for the license agreement. On agreeing those things you will be redirected to System requirement check page. If your web server satisfies all the requirements. You will be allowed to the next configuration step.

4.Configuration:
In the configuration step you will be asked for the databse name and the mysql username and password for creating a database and required tables with data for the project. In the hostname field give our hostname, localhost in general. Then provied the name for the database in the next field, if you have already created a database uncheck the 'create database' and provide the name or else check it and make sure no other database exsist in the server with same name. Table prefix is the text that u need to have before every table name of the database that is going to be created. In the next fields give the username and password for the MySQL server. If you want FTP connectivity check the 'use FTP' field and provided the correct details or else leave it blank.

5.Installation warning:
At this stage of installation, most of the time you will be prompted with a long list of file permisssion errors. If u get such screen dont get scared, just change the premissions for the installation folder. You can even do this step before starting the installation process.
To change the permission just run this command:
sudo chmod -R -f 777 {folder's physical location from root};
After changing the permission, proceed to the next step by clicking the Next button at the last of the error list.

6. Database Creation:
Now you can see a screen just like the below one, giving the confirmation of creating all the database tables. In the next step you will be asked for the administrator's email id.

7. Administrator's Account
Here you will be prompted to provide the admin username and password. On correctly providing those thing the final success screen comes. Giving the backend and frontend urls.
8. Installation success
Default Front End for visitors:

Admin Panel:

For more information about the Installation of Contrexx CMS:
http://www.contrexx.ch/wiki/de/index.php?title=Contrexx_Manual:Contrexx_Installation_Guide

Release of iPhone 4G by KT

nelamurugan@gmail.com (Pavo Fethers Team) — Wed, 13 Jan 2010 12:26:00 +0530

KT(Korea Times) is an exclusive local partner with Apple. They combining with Apple going to relaese the latest upgrade of the iPhone with 4G facility. It seems they going to release this new iPhone in the month of April or May 2010 for testing and the it will released for the distributors in the month of june this year.

KT is possibly thinking about adding a new mobile-TV service through the new iPhone.

A speech is going between the KT along with Telecom of Korea to add a new features in the guage band. And asking all the service providers to add the support for the 4G in this services.

Not more information available now. So better I will update asap.

Delicious-Really it is delicious, How to do it ?

nelamurugan@gmail.com (Pavo Fethers Team) — Mon, 9 Nov 2009 15:16:00 +0530

It is really great feature from Firefox addon 'del.icio.us'.

Before we are continue about del.icio.us, i will tell you something need to know for this post.

Firefox: It is open source browser with free of cost and mostly using browser in 2008-09.You can install it very easily.
http://www.mozilla.com/en-US/firefox/

Firefox-addon:there are millions of add-ons for Firefox since it enhances Firefox usability.

bookmark: it is like real bookmark which is used to make you more comfortable in reading books. Like that you can mark some really nice websites to see in future.
You may not forget Google.com at all but what about http://behindthescenes-black2white.blogspot.com/. Surely you will forget. So for that you could make a mark of this site in your computer system, which is locally accessible.This is bookmark.
but in this case you can not see your bookmarks from another computer. But we have a great solution for this problem.

Whats that?

Here only we got delicious.It is Firefox addon like all other addons.

It is very easy to use with your firefox. WHen ever you wolud like to create book mark it will be added to delicious if you have installed this addon with your firefox. So you can access your bookmarsk in online just having one account in delicious. It is really simple process.

to install delicious click here
install it and restart your browser. Now will see how to work with this.

And you have to know one great thing. Here the big advantage is the worlds mostly accessible site will be in the popular tags under public. So you can know all the great web sites.It will be greatly helping you. Try it out.

follow the images and work with it.

Click here to login into delicious (keep you signed in that system always)

Hope you are using delicious now. If you have something to through then comment here...

Creating new blog in google Blogger - Part 2

nelamurugan@gmail.com (Pavo Fethers Team) — Mon, 9 Nov 2009 15:13:00 +0530

It is very much simple. Just follow the images below and you can able to create excellent page than this design. Go ahead.

Now you also ready to share your view, Lets get started...

Creating new blog in google Blogger - Part 1

nelamurugan@gmail.com (Pavo Fethers Team) — Mon, 9 Nov 2009 15:11:00 +0530

Do you want to say something,?

Do you need your own page that can be accessible any where easily in free of cost?

Do you need to design your page by you?

Then solution is here....

Just click here for creating your own web page..

or use this url:http://www.blogger.com/

Like this. Not exactly. You can create excellent design what ever you like.

Which is google blog from google. There are millions of google bolgs available and daily more bloggers are coming like you.. Ok go ahead and create your own blog

To crate your own blog go here

Still do you need assistance. Then use this blog discussion.

Thanks for viewing. Comment me...

Gmails great future-Filter it-Forward itLinking all your mail accounts together

nelamurugan@gmail.com (Pavo Fethers Team) — Mon, 9 Nov 2009 15:08:00 +0530

Our lives are made up of work, friends, family, hobbies, events, clubs, and so on. Because our lives are so diversified we often have multiple email accounts. Gmail is a great, free email program that has a lot of functionality. If you have more than one Gmail account you can easily link them together so you can receive and send email from one master Gmail account and keep everything together without having to switch back and forth between accounts.

Here are the 4 steps you will need to complete to link your Gmail email accounts together:

Step 1: Add A Second Email Address
Step 2: Forward Incoming Mail
Step 3: Create a Label
Step 4: Create a Filter

———————————————
Step 1: Add A Second Email Address

forward emails in gmail

1. In your Primary (the one you want to send and receive all of your mail from) Gmail account click Settings at the top right hand corner of your screen.
2. Click the Accounts tag.
3. Select Reply from the same address the message was sent to under When I receive a message sent to one of my addresses:
4. Click Add another email address. A window will pop up.
5. Fill in the correct information for your secondary email account and click Next Step.
6. Click Send Verification. Close the pop-up window.
7. Switch to the Secondary email account and click the verification link in the email sent from Gmail.

Step 2: Forward Incoming Mail

1. Still in your Secondary email account, click the Forwarding and POP/IMAP tab found under Settings at the top right corner of the screen.
2. Type your Primary email address in the Forward a copy of incoming mail to box.
3. Then pick an option from the drop-down list:
- keep Gmail’s copy in the Inbox
- archive Gmail’s copy
- delete Gmail’s copy
4. Click Save Changes.

forward emails from one account to another

Step 3: Create a Label

1. Switch to your Primary email account, scroll to the bottom of the page and look for the Labels box on the left-hand side of the window.
2. Click Edit labels at the bottom of the Labels box.
3. Click in the box under Create a new label: and type a name for your label. You could use the actual email address if you want.
4. Click Create.

Step 4: Create a Filter

1. Still in the Primary email account, click the Filters tab, which is next to the Labels tab, and then click Create a new filter.
2. Type your secondary email address in the To: box.
3. Click Next Step.
4. Click in the box next to Skip Inbox to select it.
5. Click in the box next to Apply the label: to select it and pick the label you created from the drop-down list.
6. Click Create Filter.

That’s it! Now, emails from your Secondary email account will download into your Primary email account and automatically go into the Label (folder) that you specified. Using Filters helps to keep your email separate and organized so you don’t have all of the emails from multiple email accounts going into the same Inbox.

You will also be able to send emails from both email accounts from the Primary email account without ever having to switch to the Secondary email account.

Many ways to return to inbox

nelamurugan@gmail.com (Pavo Fethers Team) — Mon, 9 Nov 2009 15:07:00 +0530

To return to the inbox, you can of course click on the "Inbox" link on the left had side, or if you're in conversation view, clicking on the "Back to Inbox" link above the conversation. There is also green 'Inbox' label text next to the subject. But you can also click on the Gmail logo, a much larger target, to go back to the inbox.

Keyboard shortcut users can type "g i" to Go to the Inbox.

Clicking on the logo, the Inbox link, the Refresh link, or the keyboard shortcut "u" all will refresh the inbox with the latest messages received.
like that you can use all the options like shift+c,shift+k,.. all shift posibilities with the a-z. For each option you will find lot of shortcuts. It will be very much useful

More ways to open composer in a new window

nelamurugan@gmail.com (Pavo Fethers Team) — Mon, 9 Nov 2009 15:05:00 +0530

shift + 'c' or shift + click on 'Compose Mail'
shift + 'r' or shift + 'reply'
shift + 'a' or shift + 'reply all'
shift + 'f' or shift + 'forward'
Shift key is needed for keyboard shortcuts to work (caps lock is ignored).

If you're replying to a mail and want to change to reply all from your keyboard, hit Esc then 'a'. This is a keyboard shortcut. Saves a mouse click.

Because Esc moves the focus out of the text box when you are composing a reply, it allows you to then type the normal keyboard shortcuts 'r' for reply-to-sender, 'a' for reply-to-all, or 'f' forward to change the recipients of your message. So if you're replying to a message, the combination Esc then 'a' will change it to "reply to all"

Jquery SLideshow Example

nelamurugan@gmail.com (Pavo Fethers Team) — Wed, 4 Nov 2009 13:04:00 +0530

Today we are going to create a photoslider with commenting system,

Like orkut we can also create a photoviewer with commenting system with animation effects.

So try this and you can also use this example.

Enjoy.

Use your notepad to maintain your logs

nelamurugan@gmail.com (Pavo Fethers Team) — Wed, 4 Nov 2009 12:59:00 +0530

Windows Notepad: Insert Time and Date into Text or Log File

Notepad is one of window’s best little tools. As I frequently use it with logs, here are a couple of time/date tricks I have learned over the years.

Notepad is simple and full of little tricks. I use it for creating and using log files all the time. Here are a couple of ways to use notepad to automatically insert the time and date.

Automatically insert timestamp everytime a file is opened:

.LOG

3. Hit ENTER to insert one carriage return.
4. Save the file

Now… everytime you open the file in notepad, a timestamp will be inserted.

If you are in notepad and just decide you need to add the current timestamp, just hit F5. Easy,

This is very usefull trick. Follow this.

Simple menu using DIV and CSS

nelamurugan@gmail.com (Pavo Fethers Team) — Wed, 7 Oct 2009 18:30:00 +0530

I tried to design a very simple menu bar, using DIV component and made it animated with some CSS properties and here is the result. In this menu i have not used List.

Here i have used divs as the menu element and all those menu element divs are placed within a div with id 'main_menu'. To obtain the transparent effect, i placed a div in the background of this main_menu div using the CSS property:position:absolute. So that two divs are kept overlapped. And i used the CSS property:opacity to attain the transparent effect in the background.

What is SSH?

nelamurugan@gmail.com (Pavo Fethers Team) — Wed, 7 Oct 2009 04:15:00 +0530

There are a couple of ways that you can access a shell (command line) remotely on most Linux/Unix systems. One of the older ways is to use the telnet program, which is available on most network capable operating systems. Accessing a shell account through the telnet method though poses a danger in that everything that you send or receive over that telnet session is visible in plain text on your local network, and the local network of the machine you are connecting to. So anyone who can "sniff" the connection inbetween can see your username, password, email that you read, and commands that you run. For these reasons you need a more sophisticated program than telnet to connect to a remote host.

Unencrypted telnet session

SSH, which is an acronym for Secure SHell, was designed and created to provide the best security when accessing another computer remotely. Not only does it encrypt the session, it also provides better authentication facilities, as well as features like secure file transfer, X session forwarding, port forwarding and more so that you can increase the security of other protocols. It can use different forms of encryption ranging anywhere from 512 bit on up to as high as 32768 bits and includes ciphers like AES (Advanced Encryption Scheme), Triple DES, Blowfish, CAST128 or Arcfour. Of course, the higher the bits, the longer it will take to generate and use keys as well as the longer it will take to pass data over the connection.

Encrypted SSH session

The two diagrams above show how a telnet session can be viewed by anyone on the network by using a sniffing program like Ethereal (now called Wireshark) or Sniffit. It is really rather trivial to do this and so anyone on the network can steal your passwords and other information. The first diagram shows user jsmith logging in to a remote server through a telnet connection. He types his username jsmith and password C0lts06!, which are viewable by anyone who is using the same networks that he is using.

The second diagram shows how an encrypted connection like SSH is not viewable on the network. The server still can read the information, but only after negotiating the encrypted session with the client.

Navigational Menu Example

nelamurugan@gmail.com (Pavo Fethers Team) — Wed, 7 Oct 2009 03:42:00 +0530

In some way we all tried to work with menu's in Web pages, and here is the simple example for horizontal Menu.

using Jquery we can easily build this nice menubar.

In coming posts we will going to learn jquery and its advanced concepts.

Here is the example and its Source.

Enjoy....