PHP cURL proxy for Ajax—Infusionsoft

readme.md

Introduction

This is a PHP proxy to submit Ajax requests to Infusionsoft.

Usage

1. Set your Infusionsoft app id, thank-you message, and path to the cacert.pem bundle in infusionsoft-proxy-settings.php.
2. Add the Infusionsoft form IDs in infusionsoft-proxy.php, creating new lines as necessary
3. Include the functions.js in your javascript, making sure to replace the $form variable with the selector(s) you need.

functions.js

$( document ).ready( function() {

// change the selector below to match your needs
$form = $( '#credentials-form' );

$form.submit( function(e) {
    e.preventDefault();

    // perform simple validation; change fields to match your needs
    if ( ( ! inf_field_FirstName ) || ( ! inf_field_LastName ) || ( ! inf_field_Email ) || ( ! inf_field_Phone1 ) ) {
        alert( 'Please complete all fields.' );
    } else {
        // submit data to Infusionsoft via proxy script
        $.post( 'infusionsoft-proxy.php', $form.serialize() )
             .done( function( data ) {
                 $form.replaceWith( '<iframe></iframe>' );
                 $form.( 'iframe' ).contents().find( 'body' ).append( data );
             });
    }
});

});

infusionsoft-proxy-fallback.php

<?php
require_once( 'infusionsoft-proxy-settings.php' );
$form_location = $url_base . 'process/' . $_GET['inf_form_xid'];
?>
<form id="infusionsoftFallback" method="post" action="<?php echo $form_location; ?>">
    <h1>Processing&hellip;</h1>
<?php
foreach( $_GET as $key => $value ) {
    echo '<input type="hidden" name="' . $key . '" value="' . $value . '" />';
}
?>
    <script type="text/javascript">document.getElementById( "infusionsoftFallback" ).submit();</script>
    <noscript>
        <input type="submit" value="Submit" />
    </noscript>
</form>

infusionsoft-proxy-settings.php

<?php
$debugging = false;
$url_base = 'https://app-id.infusionsoft.com/app/form/';
$thank_you_message = '<h2>Thanks for your interest; we&rsquo;ll get that info over to you right away!</h2>';
$ca_bundle_location = 'D:\home\site\wwwroot\cacert.pem'; // absolute path to the file on your server; download the newest version from http://curl.haxx.se/ca/cacert.pem
$valid_info_form_xids = array(
    'FORM-ID-HERE', // add more entries as needed
);
?>

infusionsoft-proxy.php

<?php // from http://davidwalsh.name/curl-post
require_once( 'infusionsoft-proxy-settings.php' );

// extract data from the post
extract($_POST);

// set POST variables
$fields = array(
    'inf_form_xid' => urlencode( $inf_form_xid ),
    'inf_form_name' => urlencode( $inf_form_name ),
    'infusionsoft_version' => urlencode( $infusionsoft_version ),
    'inf_field_FirstName' => urlencode( $inf_field_FirstName ),
    'inf_field_LastName' => urlencode( $inf_field_LastName ),
    'inf_field_Email' => urlencode( $inf_field_Email ),
    'inf_field_Phone1' => urlencode( $inf_field_Phone1 ),
);

// url-ify the data for the POST
foreach( $fields as $key=>$value ) {
    $fields_string .= $key.'='.$value.'&';
}
rtrim( $fields_string, '&' );

// whitelist URLs based on xid
// if this allowed the xid to create any URL, that could be a security hole, allowing anybody to post to whatever URL they want
if ( in_array( $inf_form_xid, $valid_inf_form_xids ) ) { $url = $url_base . 'process/' . $inf_form_xid; } // duplicate this line as needed

// open connection
$ch = curl_init();

// set the url, number of POST vars, POST data
curl_setopt( $ch, CURLOPT_URL, $url );
curl_setopt( $ch, CURLOPT_POST, count($fields) );
curl_setopt( $ch, CURLOPT_POSTFIELDS, $fields_string );

// downloaded from http://curl.haxx.se/ca/cacert.pem
curl_setopt( $ch, CURLOPT_CAINFO, $ca_bundle_location );

// debugging
if ( $debugging ) {
    $verbose = fopen( 'php://temp', 'rw+' );
    curl_setopt( $ch, CURLOPT_VERBOSE, true );
}

// execute post
$result = curl_exec( $ch );

// debugging
if ( $debugging ) {
    if ( $result === false ) {
        printf( "cURL error (#%d): %s<br/>\n", curl_errno( $ch ) , htmlspecialchars( curl_error( $ch ) ) );
    }
    rewind( $verbose );
    $verboseLog = stream_get_contents( $verbose );
    echo "Verbose information:\n<pre>" . htmlspecialchars( $verboseLog ) . "</pre>\n";
    echo 'This script is located at: ' . __FILE__;
}

// check response for success message
if ( $result != false ) {
    header( 'content-type:application/json' );
    return $thank_you_message;
} else {
    if ( $debugging ) { var_dump($_POST); }

    $fallback_url = "http://" . $_SERVER['SERVER_NAME'] . str_replace( 'infusionsoft-proxy.php', 'infusionsoft-proxy-fallback.php', $_SERVER['REQUEST_URI'] ) . '?' . http_build_query( $_POST );

    if ( $debugging ) { echo $get_string; }

    header( 'Location:' . $fallback_url );
    exit;
}

// close connection
curl_close( $ch );
?>

$form.( 'iframe' ).contents().find( 'body' ).append( data );

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Can't get it to work