Redirecting a Post form

tcarnes

I have a form which calls itself and does error checking and setting of session variables.

If there are no errors, I then want to redirect to a Perl form passing along the Post variables. How do I do this?

How can I redirect to another form so that the Post variables are passed along as thought the second form was written in the <form> html of the original form.

Since the Post variables include credit card info and other personal information, I don't want to use Get and since the second form is written in Perl (which I don't know), I can't use session variable to do this either.

Is there another way?

Terry

efficacious

tcarnes;10886562 wrote:
I have a form which calls itself and does error checking and setting of session variables.

If there are no errors, I then want to redirect to a Perl form passing along the Post variables. How do I do this?

How can I redirect to another form so that the Post variables are passed along as thought the second form was written in the <form> html of the original form.

Since the Post variables include credit card info and other personal information, I don't want to use Get and since the second form is written in Perl (which I don't know), I can't use session variable to do this either.

Is there another way?

Terry

can't you use POST?

methods POST and GET are virtually the same except post is designed for secure information.

being that GET and POST are members of HTML family you should be able to use either with ANY scripting language

tcarnes

efficacious;10886566 wrote:
can't you use POST?

Actually, I am using POST to call SELF so the form acts as its own error checker.

Then when I have no errors, I want to redirect to a proprietary Perl script that provides the gateway to the banking system.

That's why I'm trying to emulate a POST.

efficacious

I guess I'm just not understand what exactly you need to do..

efficacious

You need to send the posted (errorchecked) values to your perl form correct?

efficacious

can you not extract the values using the post method in perl?

tcarnes

Basically, what I'm wanting to do is redirect to my banking gateway Perl page if I've verified all the POST variables. Using the regular redirecting method of

echo '<meta HTTP-EQUIV="REFRESH" content="0; url=../cgi-bin/my_bank.pl">';

isn't working because it doesn't pass the POST variables to the Perl Page.

This is an abbreviated form of my current code:

if (isset ( $_POST ['submit'] ))
{
	// Check incoming required variables
	$error_messages = array ( );
	if (! isset ( $_POST ['Required_Variable'] ) || ($_POST ['Required_Variable'] == ' ') || ($_POST ['Required_Variable'] == '')) {
		$error_messages ['Required_Variable'] = 'Please provide this required variable.';
		$_SESSION ['Required_Variable'] = '';
	} else
		$_SESSION ['Required_Variable'] = $_POST ['Required_Variable'];
	$Required_Variable = $_SESSION ['Required_Variable'];

/* Repeat for all require variables and those needing verification */
}

if ((isset ( $_POST ['submit'] )) && (count ( $error_messages ) < 1)) {
	// Process Credit Card!
	echo '<meta HTTP-EQUIV="REFRESH" content="0; url=../cgi-bin/my_bank.pl">';
} else {
	// Display form
	echo '<form class="app" action="' . $_SERVER ['PHP_SELF'] . '" method="post">';
	?>
	<table border=0 width=100%>
		<TR>
			<td><span class="required">*</SPAN> Required fields</td>
		</tr>
	</table>
	<table border=0 width=100%>
		<TR>
			<TD align=right width="25%"><font face="Arial" size="2"><span class="label">Required Variable:</span><span class="required">*</span>&nbsp;</font></TD>
			<TD><input type="text" name="Required_Variable" size="35" maxlength="35"
				value="<?php echo $Require_Variable;?>"></TD>
		</TR>
	<?php
	if (isset ( $error_messages ['Required_Variable'] ) && ($error_messages ['Required_Variable'] != '')) {
		echo '<tr><td>&nbsp;</td><td><span class="ocerror-p">' . $error_messages ['Required_Variable'] . '</span></td></tr>';
	}
	echo '</table></form>';

I hope this explains what I'm trying to do better.

efficacious

if ((isset ( $_POST ['submit'] )) && (count ( $error_messages ) < 1)) {
	// Process Credit Card!
	echo '<meta HTTP-EQUIV="REFRESH" content="0; url=../cgi-bin/my_bank.pl">';
}

change this section of code to this

if (isset($_POST['submit']) && count($error_messages)<1)) 
{
	// Process Credit Card!
	echo("
		<form id='TheForm' action='../cgi-bin/my_bank.pl' method='post'>
		<input type='hidden' name='Required_Variable' value='".$_POST['Required_Variable']."' />
		</form>
		<script>
		document.getElementById('TheForm').submit();
		</script>
	");
}

this uses Javascript to auto submit the form once php echos it.
this form is hidden so your users cannot see it.. and the value sent is sent with method post which is designed for secure information.

now you should be able to bring in the value on the perl script

tcarnes

Thanks, efficacious, that worked great!

I tweaked it a bit so I wouldn't have to hard code each of the POST variables:

	echo "		<form id='TheForm' action='test_post.php' method='post'>";
	foreach ($_POST as $key=> $value)
	{
		if ($key != 'submit') {echo "<input type='hidden' name='$key' value='$value'/>";}
	}
	echo "
		</form>
		<script>
		document.getElementById('TheForm').submit();
		</script>";

Thanks again, and I hope this helps someone else with this need.