<?php
//Sample code for operational remote key generation
//Settings
//use curl to get remote image
$usecurl = true;
//have curl verify ssl peer
//to verify, certificates must be properly set up for curl
$verify = false;
$errortext = '';
if( isset($_REQUEST['submitted']) ){
//the form has been submitted so include and instantiate class
require_once('../imagekey.class.php');
$ikey = new imageKey();
//read request into variables
$src = $_REQUEST['img_src'];
$msg = $_REQUEST['msg_text'];
//check for errors
if( empty($src) ){
$errortext .= 'You must enter a URL to the source image<br>';
}
if( empty($msg) ){
$errortext .= 'You must enter a message<br>';
}
if( empty($errortext) ){
//no errors found so process image
$ikey->imgPath = ''; //<-- since we are supplying the full URL, we need to remove any default paths
$ikey->createKey($src,'',$usecurl,$verify);
if( !empty($ikey->errorText) ){
//problem creating key
$errortext .= $ikey->errorText;
}
//determine if we are processing an encrypted message or not and launch appropriate method
$pattern = "/{$ikey->msgDelim}[0-9]+{$ikey->msgDelim}/";
$msgtext = ( preg_match($pattern,$msg) ) ? trim($ikey->decryptMsg($msg)) : trim($ikey->encryptMsg($msg));
if( empty($msgtext) ){
//class did not return a message
$errortext .= 'There was a problem processing your request';
}
}
}else{
//declare and set default values used in the form
$src = '';
$msg = '';
$msgtext = '';
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Image Key Encryption</title>
</head>
<style>
.form-label, .form-submit, .msg-result, .msg-return{
margin-top: 20px;
}
input[type="text"]{
width: 600px;
}
textarea{
width: 600px;
height: 150px;
}
a{
color: blue;
text-decoration: none;
}
a:hover{
color: red;
}
.error-text{
border: thin solid red;
padding: 20px;
}
.msg-result{
border: thin solid black;
padding: 20px;
}
</style>
<body>
<?php
if( !empty($errortext) ){
//error text exists so display it
?>
<div class="error-text"><?php echo $errortext;?></div>
<?php
}
if( empty($msgtext) ){
//no message text so show the form
?>
<form method="POST">
<div class="form-label"><label for="img_src">Enter full URL to the image</label></div>
<div class="form-input"><input type="text" name="img_src" id="img_src" value="<?php echo $src;?>" autocomplete="off"></div>
<div class="form-label"><label for="msg_text">Enter message</label></div>
<div class="form-input"><textarea name="msg_text" id="msg_text"><?php echo $msg;?></textarea></div>
<div class="form-submit">
<input type="hidden" name="submitted" value="1">
<input type="submit" name="form_submit" value="Go">
</div>
</form>
<?php
}else{
//we have message text so display it
?>
<div class="msg-result"><?php echo $msgtext;?></div>
<div class="msg-return"><a href="">Return</a></div>
<?php
}
?>
</body>
</html>
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