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5.6

How can I add security to the following vcard from?

Asked by wingcat in PHP Scripting Language, PHP Frameworks, PHP for Windows

How can the following form be enhanced so that a user can't spam me with hitting the spam multiple times? 
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<?php // RAY_vcard_mailer.php
 
// PLACE YOUR NAME AND EMAIL ADDRESS HERE:
$my_name	= "FirstNameHere";
$my_email	= "me@myself.com";
 
// PLACE YOUR DOMAIN NAME HERE - NO WWW - LIKE google.com
$my_domain	= "domain.com";
 
 
 
 
 
 
 
 
// THIS CODE IS ADAPTED FROM http://www.troywolf.com/articles/php/class_vcard/
class vcard {
  var $log;
  var $data;  //array of this vcard contact data
  var $filename; //filename for download file naming
  var $class; //PUBLIC, PRIVATE, CONFIDENTIAL
  var $revision_date;
  var $card;
 
  /*
  The class constructor. You can set some defaults here if desired.
  */
  function vcard() {
    $this->data = array(
      "display_name"=>null
      ,"first_name"=>null
      ,"last_name"=>null
      ,"additional_name"=>null
      ,"name_prefix"=>null
      ,"name_suffix"=>null
      ,"nickname"=>null
      ,"title"=>null
      ,"role"=>null
      ,"department"=>null
      ,"company"=>null
      ,"work_po_box"=>null
      ,"work_extended_address"=>null
      ,"work_address"=>null
      ,"work_city"=>null
      ,"work_state"=>null
      ,"work_postal_code"=>null
      ,"work_country"=>null
      ,"home_po_box"=>null
      ,"home_extended_address"=>null
      ,"home_address"=>null
      ,"home_city"=>null
      ,"home_state"=>null
      ,"home_postal_code"=>null
      ,"home_country"=>null
      ,"office_tel"=>null
      ,"home_tel"=>null
      ,"cell_tel"=>null
      ,"fax_tel"=>null
      ,"pager_tel"=>null
      ,"email1"=>null
      ,"email2"=>null
      ,"url"=>null
      ,"photo"=>null
      ,"birthday"=>null
      ,"timezone"=>null
      ,"sort_string"=>null
      ,"note"=>null
      );
    return true;
  }
 
  /*
  build() method checks all the values, builds appropriate defaults for
  missing values, generates the vcard data string.
  */
  function build() {
    /*
    For many of the values, if they are not passed in, we set defaults or
    build them based on other values.
    */
    if (!$this->class) { $this->class = "PUBLIC"; }
    if (!$this->data['display_name']) {
      $this->data['display_name'] = trim($this->data['first_name']." ".$this->data['last_name']);
    }
    if (!$this->data['sort_string']) { $this->data['sort_string'] = $this->data['last_name']; }
    if (!$this->data['sort_string']) { $this->data['sort_string'] = $this->data['company']; }
    if (!$this->data['timezone']) { $this->data['timezone'] = date("O"); }
    if (!$this->revision_date) { $this->revision_date = date('Y-m-d\TH:i:s'); }
 
    $this->card = "BEGIN:VCARD\r\n";
    $this->card .= "VERSION:3.0\r\n";
    $this->card .= "CLASS:".$this->class."\r\n";
    $this->card .= "PRODID:-//class_vcard from TroyWolf.com//NONSGML Version 1//EN\r\n";
    $this->card .= "REV:".$this->revision_date."\r\n";
    $this->card .= "FN:".$this->data['display_name']."\r\n";
    $this->card .= "N:"
      .$this->data['last_name'].";"
      .$this->data['first_name'].";"
      .$this->data['additional_name'].";"
      .$this->data['name_prefix'].";"
      .$this->data['name_suffix']."\r\n";
    if ($this->data['nickname']) { $this->card .= "NICKNAME:".$this->data['nickname']."\r\n"; }
  	if ($this->data['title']) { $this->card .= "TITLE:".$this->data['title']."\r\n"; }
  	if ($this->data['company']) { $this->card .= "ORG:".$this->data['company']; }
  	if ($this->data['department']) { $this->card .= ";".$this->data['department']; }
  	$this->card .= "\r\n";
 
  	if ($this->data['work_po_box']
    || $this->data['work_extended_address']
    || $this->data['work_address']
    || $this->data['work_city']
    || $this->data['work_state']
    || $this->data['work_postal_code']
    || $this->data['work_country']) {
      $this->card .= "ADR;TYPE=work:"
        .$this->data['work_po_box'].";"
        .$this->data['work_extended_address'].";"
        .$this->data['work_address'].";"
        .$this->data['work_city'].";"
        .$this->data['work_state'].";"
        .$this->data['work_postal_code'].";"
        .$this->data['work_country']."\r\n";
    }
  	if ($this->data['home_po_box']
    || $this->data['home_extended_address']
 
    || $this->data['home_address']
    || $this->data['home_city']
    || $this->data['home_state']
    || $this->data['home_postal_code']
    || $this->data['home_country']) {
      $this->card .= "ADR;TYPE=home:"
        .$this->data['home_po_box'].";"
        .$this->data['home_extended_address'].";"
        .$this->data['home_address'].";"
        .$this->data['home_city'].";"
        .$this->data['home_state'].";"
        .$this->data['home_postal_code'].";"
        .$this->data['home_country']."\r\n";
    }
    if ($this->data['email1']) { $this->card .= "EMAIL;TYPE=internet,pref:".$this->data['email1']."\r\n"; }
    if ($this->data['email2']) { $this->card .= "EMAIL;TYPE=internet:".$this->data['email2']."\r\n"; }
    if ($this->data['office_tel']) { $this->card .= "TEL;TYPE=work,voice:".$this->data['office_tel']."\r\n"; }
    if ($this->data['home_tel']) { $this->card .= "TEL;TYPE=home,voice:".$this->data['home_tel']."\r\n"; }
    if ($this->data['cell_tel']) { $this->card .= "TEL;TYPE=cell,voice:".$this->data['cell_tel']."\r\n"; }
    if ($this->data['fax_tel']) { $this->card .= "TEL;TYPE=work,fax:".$this->data['fax_tel']."\r\n"; }
    if ($this->data['pager_tel']) { $this->card .= "TEL;TYPE=work,pager:".$this->data['pager_tel']."\r\n"; }
    if ($this->data['url']) { $this->card .= "URL;TYPE=work:".$this->data['url']."\r\n"; }
  	if ($this->data['birthday']) { $this->card .= "BDAY:".$this->data['birthday']."\r\n"; }
  	if ($this->data['role']) { $this->card .= "ROLE:".$this->data['role']."\r\n"; }
  	if ($this->data['note']) { $this->card .= "NOTE:".$this->data['note']."\r\n"; }
  	$this->card .= "TZ:".$this->data['timezone']."\r\n";
    $this->card .= "END:VCARD\r\n";
  }
 
  /*
  download() method streams the vcard to the browser client.
  */
  function download() {
    if (!$this->card) { $this->build(); }
    if (!$this->filename) { $this->filename = trim($this->data['display_name']); }
    $this->filename = str_replace(" ", "_", $this->filename);
  	header("Content-type: text/directory");
  	header("Content-Disposition: attachment; filename=".$this->filename.".vcf");
  	header("Pragma: public");
  	echo $this->card;
    return true;
  }
 
// METHOD produce() RETURNS THE CARD DATA INTO THE SCRIPT
	function produce() {
		if (!$this->card) { $this->build(); }
		if (!$this->filename) { $this->filename = trim($this->data['display_name']); }
		$this->filename = str_replace(" ", "_", $this->filename);
		return $this->card;
	}
 
}
 
 
 
if (empty($_POST)) { // PUT UP FORM
?>
                <form method="POST" action="<?=$PHP_SELF?>">
<table class="vcard" border="0" cellspacing="2" border="2">
<tr>
  <th class="form_vcard">First Name</th>
  <td class="body_text_with_margin">    <span class="form_vcard">
    <input type="text" name="first_name" size="40" />    
    </span></td>
</tr>
<tr>
  <th class="form_vcard">Last Name</th>
 
  <td class="body_text_with_margin">    <span class="form_vcard">
    <input type="text" name="last_name" size="40" />    
    </span></td>
</tr>
<tr>
  <th class="form_vcard">Company</th>
  <td class="body_text_with_margin">    <span class="form_vcard">
    <input type="text" name="company" size="40" />    
    </span></td>
</tr>
<tr>
  <th class="form_vcard">Title</th>
  <td class="body_text_with_margin">    <span class="form_vcard">
    <input type="text" name="title" size="40" />    
    </span></td>
</tr>
 
<tr>
  <th class="form_vcard">Street</th>
  <td class="body_text_with_margin">    <span class="form_vcard">
    <input type="text" name="work_address" size="40" />    
    </span></td>
</tr>
<tr>
  <th class="form_vcard">City</th>
  <td class="body_text_with_margin">    <span class="form_vcard">
<input type="text" name="work_city" size="18" />
,&nbsp;
    <input type="text" name="work_state" size="2" />
    &nbsp;
 
    <input type="text" name="work_postal_code" size="7" />    
    &nbsp;  </span></td>
</tr>
<tr>
  <th class="form_vcard">Email Address</th>
  <td class="body_text_with_margin">    <span class="form_vcard">
    <input type="text" name="email1" size="40" />    
    </span></td>
 
</tr>
<tr>
  <th class="form_vcard">Office Phone</th>
  <td class="body_text_with_margin">    <span class="form_vcard">
    <input type="text" name="office_tel" size="20" />    
    </span></td>
</tr>
<tr>
  <th class="form_vcard">Mobile Phone</th>
   <td class="body_text_with_margin">    <span class="form_vcard">
    <input type="text" name="cell_tel" size="20" />    
    </span></td>
</tr>
<tr>
  <th>&nbsp;</th>
  <td class="body_text_with_margin">    <span class="form_vcard">
    <input type="submit" value="Get Updates!" />    
    </span></td>
</tr>
</table>
</form>
<?php
}
 
 
 
 
 
 
else // PROCESS FORM INPUT
{
// PRODUCE AND MAIL A VCARD
// THIS CODE IS ADAPTED FROM http://www.troywolf.com/articles/php/class_vcard/
	$vc = new vcard();
	foreach ($_POST as $key=>$val) {
		$vc->data[$key] = $val;
	}
	$vcardtext = $vc->produce();
//	var_dump($vcardtext);
 
// SET UP THE EMAIL BASIC INFORMATION
	$to		= "$my_name <$my_email>";
	$from	= "WWW Robot <wwwrobot@$my_domain>";
	$subj	= "Here is a vCard";
	$hdrs	= "From: $from";
 
// CREATE THE FILE NAME
	$msg_file_name	= $vc->filename . '.vcf';
 
// SET UP THE MIME BOUNDARIES
	$semi_rand = md5( time() );
	$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";
 
// APPEND TO THE EMAIL HEADERS
	$hdrs .= "\nMIME-Version: 1.0\n" .
		"Content-Type: multipart/mixed;\n" .
		" boundary=\"{$mime_boundary}\"";
 
// SET UP THE MESSAGE
	$message = "vCard attached: $msg_file_name";
	$message = "This is a multi-part message in MIME format.\n\n" .
		"--{$mime_boundary}\n" .
		"Content-Type: text/plain; charset=\"iso-8859-1\"\n" .
		"Content-Transfer-Encoding: 7bit\n\n" .
		$message . "\n\n";
 
// ENCODE THE ATTACHMENT
	$coded_vcard = chunk_split( base64_encode( $vcardtext ) );
 
// ADD INFORMATION TO THE MESSAGE STRING
	$message .= "--{$mime_boundary}\n" .
		 "Content-type: text/x-vCard;\n" .
		 " name=\"$msg_file_name\"\n" .
		 "Content-Disposition: attachment;\n" .
		 " filename=\"$msg_file_name\"\n" .
		 "Content-Transfer-Encoding: base64\n\n" .
		 $coded_vcard . "\n\n" .
		 "--{$mime_boundary}--\n";
 
// SEND THE VCARD
	mail ($to, $subj, $message, $hdrs);
	 echo "<p class=\"header\">Thanks!  Your vCard has been sent to $my_name</p>\n";
}
?>
[+][-]01/09/09 12:38 PM, ID: 23339982Accepted Solution

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Zones: PHP Scripting Language, PHP Frameworks, PHP for Windows
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Solution Provided By: Ray_Paseur
Participating Experts: 1
Solution Grade: B
 
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