Login Script with a Template

[evanpyrz]

Hi there,

        I purchased an admin template, and I've been trying to implement my existing login php script into their template. Their template is AJAX based, but with some PHP mixed in, so let me know if you feel I should re-post it under the AJAX category.

 

        I've attached the template file "login_template.php", as well as a page with just my regular login script on it "login_standard.php", if anyone could assist me in making the two of them work together, and explain to me what you did (for my own future reference/education), it would be greatly appreciated!

 

Thanks in advance,

 

Eric

 

[attachment deleted by admin]

[Pikachu2000]

Most people won't download an attached file. Post the code within the forum's

 . . . 

BBCode tags instead.

[evanpyrz]

On the template page, the following is written before the rest of the page's contents:

<?php	

// If login form submitted
if (isset($_POST['a']))
{
	$valid = false;
	$redirect = isset($_REQUEST['redirect']) ? $_REQUEST['redirect'] : 'index.php';

	// Check fields
	if (!isset($_POST['login']) or strlen($_POST['login']) == 0)
	{
		$error = 'Please enter your user name';
	}
	elseif (!isset($_POST['pass']) or strlen($_POST['pass']) == 0)
	{
		$error = 'Please enter your password';
	}
	else
	{
		/*
		 * Do whatever here to check user login
		 */
		$valid = ($_POST['login'] == 'admin' and $_POST['pass'] == 'admin');

		if (!$valid)
		{
			$error = 'Wrong user/password, please try again';
		}
	}

	// Check if AJAX request
	$ajax = (isset($_SERVER['HTTP_X_REQUESTED_WITH']) and strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');

	// If user valid
	if ($valid)
	{
		// Handle the keep-logged option
		if (isset($_POST['keep-logged']) and $_POST['keep-logged'] == 1)
		{
			// Set cookie or whatever here
		}

		if ($ajax)
		{
			header('Cache-Control: no-cache, must-revalidate');
			header('Expires: '.date('r', time()+(86400*365)));
			header('Content-type: application/json');

			echo json_encode(array(
				'valid' => true,
				'redirect' => $redirect
			));
			exit();
		}
		else
		{
			header('Location: '.$redirect);
			exit();
		}
	}
	else
	{
		if ($ajax)
		{
			header('Cache-Control: no-cache, must-revalidate');
			header('Expires: '.date('r', time()+(86400*365)));
			header('Content-type: application/json');

			echo json_encode(array(
				'valid' => false,
				'error' => $error
			));
			exit();
		}
	}
} 
?>

 

The AJAX script is here:

<script type="text/javascript">

	$(document).ready(function()
	{
		// We'll catch form submission to do it in AJAX, but this works also with JS disabled
		$('#login-form').submit(function(event)
		{
			// Stop full page load
			event.preventDefault();

			// Check fields
			var login = $('#login').val();
			var pass = $('#pass').val();

			if (!login || login.length == 0)
			{
				$('#login-block').removeBlockMessages().blockMessage('Please enter your user name', {type: 'warning'});
			}
			else if (!pass || pass.length == 0)
			{
				$('#login-block').removeBlockMessages().blockMessage('Please enter your password', {type: 'warning'});
			}
			else
			{
				var submitBt = $(this).find('button[type=submit]');
				submitBt.disableBt();

				// Target url
				var target = $(this).attr('action');
				if (!target || target == '')
				{
					// Page url without hash
					target = document.location.href.match(/^([^#]+)/)[1];
				}

				// Request
				var data = {
					a: $('#a').val(),
					login: login,
					pass: pass
				};
				var redirect = $('#redirect');
				if (redirect.length > 0)
				{
					data.redirect = redirect.val();
				}

				// Start timer
				var sendTimer = new Date().getTime();

				// Send
				$.ajax({
					url: target,
					dataType: 'json',
					type: 'POST',
					data: data,
					success: function(data, textStatus, XMLHttpRequest)
					{
						if (data.valid)
						{
							// Small timer to allow the 'cheking login' message to show when server is too fast
							var receiveTimer = new Date().getTime();
							if (receiveTimer-sendTimer < 500)
							{
								setTimeout(function()
								{
									document.location.href = data.redirect;

								}, 500-(receiveTimer-sendTimer));
							}
							else
							{
								document.location.href = data.redirect;
							}
						}
						else
						{
							// Message
							$('#login-block').removeBlockMessages().blockMessage(data.error || 'An unexpected error occured, please try again', {type: 'error'});

							submitBt.enableBt();
						}
					},
					error: function(XMLHttpRequest, textStatus, errorThrown)
					{
						// Message
						$('#login-block').removeBlockMessages().blockMessage('Error while contacting server, please try again', {type: 'error'});

						submitBt.enableBt();
					}
				});

				// Message
				$('#login-block').removeBlockMessages().blockMessage('Please wait, cheking login...', {type: 'loading'});
			}
		});
	});

</script>

 

---

 

Here is the code for my current login script:

 

<?php
// Load the common classes
require_once('../includes/common/KT_common.php');

// Load the tNG classes
require_once('../includes/tng/tNG.inc.php');

// Make a transaction dispatcher instance
$tNGs = new tNG_dispatcher("../");

// Make unified connection variable
$conn_JetMedia = new KT_connection($JetMedia, $database_JetMedia);

// Start trigger
$formValidation = new tNG_FormValidation();
$formValidation->addField("kt_login_user", true, "text", "", "", "", "");
$formValidation->addField("kt_login_password", true, "text", "", "", "", "");
$tNGs->prepareValidation($formValidation);
// End trigger

// Make a login transaction instance
$loginTransaction = new tNG_login($conn_JetMedia);
$tNGs->addTransaction($loginTransaction);
// Register triggers
$loginTransaction->registerTrigger("STARTER", "Trigger_Default_Starter", 1, "POST", "kt_login1");
$loginTransaction->registerTrigger("BEFORE", "Trigger_Default_FormValidation", 10, $formValidation);
$loginTransaction->registerTrigger("END", "Trigger_Default_Redirect", 99, "{kt_login_redirect}");
// Add columns
$loginTransaction->addColumn("kt_login_user", "STRING_TYPE", "POST", "kt_login_user");
$loginTransaction->addColumn("kt_login_password", "STRING_TYPE", "POST", "kt_login_password");
$loginTransaction->addColumn("kt_login_rememberme", "CHECKBOX_1_0_TYPE", "POST", "kt_login_rememberme", "0");
// End of login transaction instance

// Execute all the registered transactions
$tNGs->executeTransactions();

// Get the transaction recordset
$rscustom = $tNGs->getRecordset("custom");
$row_rscustom = mysql_fetch_assoc($rscustom);
$totalRows_rscustom = mysql_num_rows($rscustom);
?>

[evanpyrz]

Most people won't download an attached file. Post the code within the forum's

 . . . 

BBCode tags instead.

 

Thanks for the tip!