Verständnisproblem wp-mail.php

<?php
require(dirname(__FILE__) . '/wp-config.php');


require_once(ABSPATH.WPINC.'/class-pop3.php');


error_reporting(2037);


$time_difference = get_settings('gmt_offset') * 3600;


$phone_delim = '::';


$pop3 = new POP3();


if (!$pop3->connect(get_settings('mailserver_url'), get_settings('mailserver_port'))) :
    echo "Ooops $pop3->ERROR <br />\n";
    exit;
endif;


$count = $pop3->login(get_settings('mailserver_login'), get_settings('mailserver_pass'));
if (0 == $count) die(__('There doesn’t seem to be any new mail.'));




for ($i=1; $i <= $count; $i++) :


    $message = $pop3->get($i);


    $content = '';
    $content_type = '';
    $boundary = '';
    $bodysignal = 0;
    $dmonths = array('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
                     'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');
    foreach ($message as $line) :
        if (strlen($line) < 3) $bodysignal = 1;


        if ($bodysignal) {
            $content .= utf8_encode($line);
        } else {
            if (preg_match('/Content-Type: /i', $line)) {
                $content_type = trim($line);
                $content_type = substr($content_type, 14, strlen($content_type)-14);
                $content_type = explode(';', $content_type);
                $content_type = $content_type[0];
            }
            if (($content_type == 'multipart/alternative') && (preg_match('/boundary="/', $line)) && ($boundary == '')) {
                $boundary = trim($line);
                $boundary = explode('"', $boundary);
                $boundary = $boundary[1];
            }
            if (preg_match('/Subject: /i', $line)) {
                $subject = trim($line);
                $subject = utf8_encode($subject);
                $subject = substr($subject, 9, strlen($subject)-9);
                $subject = wp_iso_descrambler($subject);
                // Captures any text in the subject before $phone_delim as the subject
                $subject = explode($phone_delim, $subject);
                $subject = $subject[0];
            }


            // Set the author using the email address (To or Reply-To, the last used)
            // otherwise use the site admin
            if (preg_match('/From: /', $line) | preg_match('Reply-To: /', $line))  {
                $author=trim($line);
            if ( ereg("([a-zA-Z0-9\_\-\.]+@[\a-zA-z0-9\_\-\.]+)", $author , $regs) ) {
                $author = $regs[1];
                echo "Author = {$author} <p>";
                $author = $wpdb->escape($author);
                $result = $wpdb->get_row("SELECT ID FROM $wpdb->users WHERE user_email='$author' LIMIT 1");
                if (!$result)
                    $post_author = 1;
                else
                    $post_author = $result->ID;
            } else
                $post_author = 1;
            }


            if (preg_match('/Date: /i', $line)) { // of the form '20 Mar 2002 20:32:37'
                $ddate = trim($line);
                $ddate = str_replace('Date: ', '', $ddate);
                if (strpos($ddate, ',')) {
                    $ddate = trim(substr($ddate, strpos($ddate, ',')+1, strlen($ddate)));
                }
                $date_arr = explode(' ', $ddate);
                $date_time = explode(':', $date_arr[3]);
                
                $ddate_H = $date_time[0];
                $ddate_i = $date_time[1];
                $ddate_s = $date_time[2];
                
                $ddate_m = $date_arr[1];
                $ddate_d = $date_arr[0];
                $ddate_Y = $date_arr[2];
                for ($j=0; $j<12; $j++) {
                    if ($ddate_m == $dmonths[$j]) {
                        $ddate_m = $j+1;
                    }
                }


                $time_zn = intval($date_arr[4]) * 36;
                $ddate_U = gmmktime($ddate_H, $ddate_i, $ddate_s, $ddate_m, $ddate_d, $ddate_Y);
                $ddate_U = $ddate_U - $time_zn;
                $post_date = gmdate('Y-m-d H:i:s', $ddate_U + $time_difference);
                $post_date_gmt = gmdate('Y-m-d H:i:s', $ddate_U);
            }
        }
    endforeach;


    $subject = trim(str_replace(get_settings('subjectprefix'), '', $subject));
    $subject = utf8_encode($subject);
    if ($content_type == 'multipart/alternative') {
        $content = utf8_encode($content);
        $content = explode('--'.$boundary, $content);
        $content = $content[2];
        $content = explode('Content-Transfer-Encoding: quoted-printable', $content);
        $content = strip_tags($content[1], '<img><p><br><i><b><u><em><strong><strike><font><span><div>');
    }
    $content = trim($content);
    $content = utf8_encode($content);
    // Captures any text in the body after $phone_delim as the body
    $content = explode($phone_delim, $content);
    $content[1] ? $content = $content[1] : $content = $content[0];


    echo "<p><b>Content-type:</b> $content_type, <b>boundary:</b> $boundary</p>\n";
    echo "<p><b>Raw content:</b><br /><pre>".$content.'</pre></p>';


    $content = trim($content);
    $content = utf8_encode($content);
    $post_content = apply_filters('phone_content', $content);


    $post_title = xmlrpc_getposttitle($content);


    if ($post_title == '') $post_title = $subject;


    if (empty($post_categories)) $post_categories[] = get_settings('default_email_category');


    $post_category = $post_categories;


    // or maybe we should leave the choice to email drafts? propose a way
    $post_status = 'publish';


    $post_data = compact('post_content','post_title','post_date','post_date_gmt','post_author','post_category', 'post_status');
    $post_data = add_magic_quotes($post_data);


    $post_ID = wp_insert_post($post_data);


    if (!$post_ID) {
        // we couldn't post, for whatever reason. better move forward to the next email
        continue;
    }


    do_action('publish_phone', $post_ID);


    echo "\n<p><b>Author:</b> $post_author</p>";
    echo "\n<p><b>Posted title:</b> $post_title<br />";
    echo "\n<b>Posted content:</b><br /><pre>".$content.'</pre></p>';


    if(!$pop3->delete($i)) {
        echo '<p>Oops '.$pop3->ERROR.'</p></div>';
        $pop3->reset();
        exit;
    } else {
        echo "<p>Mission complete, message <strong>$i</strong> deleted.</p>";
    }


endfor;


$pop3->quit();


?>

<? echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"; ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de">
 <head>
<? $version = substr($_SERVER['SCRIPT_NAME'],15,strlen(strpos($_SERVER['SCRIPT_NAME'],'.'))-6); ?>
  <title>PHP Mail Formular <?=$version;?></title>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
  <style type="text/css" media="all">
  <!--
   body{margin:0; padding:0; border:0; font:100% Courier New,sans-serif; color:#456; background:#def; text-align:center;}
   a{color:#456;}
   div,p,select,input{font:100% Courier New,sans-serif; text-align:left;}
   textarea,select,input{border:1px #456 outset; font-weight:bold; background:#def;}
   textarea{min-width:400px; width:100%;}
   .a{width:90%; margin:0 5%;}
   .l{width:100%;}
   .left{width:65%; float:left; white-space:nowrap;}
   .right{width:31%; float:right; color:#789;}
   .s{min-width:50px; width:20%;}
   .ml{margin-left:20%; font-weight:normal;}
   .nowrap{white-space:nowrap;}
   .center{text-align:center; font-weight:normal;}
   .reset{color:#789; text-align:center;}
   .lh{line-height:3px; font-weight:normal;}
   .info{font-weight:bold; font-size:100%; color:#f00; text-align:center;}
   -->
  </style>
 </head>
 <body>
<?
$betreff=$_POST[betreff];
$msg=$_POST[msg];
$file=$_POST[file];
$senden=$_POST[senden];
$empfaenger=$_POST[empfaenger];
$reply=$_POST[reply];
$absender=$_POST[absender];
$content_type=$_POST[content_type];
$anzahl=$_POST[anzahl];
$priority=$_POST[priority];


  if(isset($senden))
   {
    /* Anzahl ist nicht ausgef&uuml;llt oder < 1 */
    if($anzahl<1)
     {
      echo "  <p class=\"info\">Error: Bitte im Feld Anzahl mindestens eine 1 eingeben.</p>\n </body>\n</html>";
      exit;
     }
    /* Es wurde kein Empf&auml;nger eingegeben */
    if(empty($empfaenger))
     {
      echo "  <p class=\"info\">Error: Bitte mindestens einen Empf&auml;nger eingeben.</p>\n </body>\n</html>";
      exit;
     }
    /* Empf&auml;nger existiert nicht */
    $host_empfaenger = substr(strstr($empfaenger, '@'), 1);
    if(empty($host_empfaenger))
     {
      echo "  <p class=\"info\">Error: Dieser Empf&auml;nger existiert nicht.</p>\n </body>\n</html>";
      exit;
     }
    /* PROBLEM mehrere Empf&auml;nger - info@php-mail-form.com */
    /* Bsp: Error: Der Empf&auml;nger "tobsn.com>" "tobsn.com,mail@tobiashenze.de,mail@bumsbar.com" existiert nicht.
    if(checkdnsrr($host_empfaenger) == FALSE)
     {
      echo "  <p class=\"info\">Error: Der Empf&auml;nger &quot;$host_empfaenger&quot; existiert nicht.</p>\n </body>\n</html>";
      exit;
     }
    */
    /* Betreff */
    $betreff = utf8_decode($betreff);
    /* Wichtigkeit */
    if($priority == "high")
     {$wichtigkeit = "X-Priority: 1 (Highest)\n" . "Importance: High\n";}
    if($priority == "low")
     {$wichtigkeit = "X-Priority: 5 (Lowest)\n" . "Importance: Low\n";}
    /* Absender */
    if(!empty($absender))
     {
      $from = "From: $absender\n";
     }
    /* Kopie */
    if(!empty($cc))
     {
      $cc = "Cc: $cc\n";
     }
    /* Blind-Kopie */
    if(!empty($bcc))
     {
      $bcc = "Bcc: $bcc\n";
     }
    /* Antworten senden an */
    if(!empty($reply))
     {
      $reply = "Reply-To: $reply\n";
     }
    else
     {
      $reply = "Reply-To: $absender\n";
     }
    /* Anhang */
    /* Wenn eine Datei als Anhang ausgewaehlt wurde */
    if(!empty($datei))
     {
      /* Lese die temporaere Datei, die der Benutzer hochgeladen hat aus */
      $datei_content = fread(fopen($datei,"r"),filesize($datei));
      /* Codiere Datei ins BASE64-Format */
      $datei_content = chunk_split(base64_encode($datei_content));
      /* Generiere einen Boundary */
      $boundary = strtoupper(md5(uniqid(time())));
      /* Beginne den Mail-Header mit MIME-Mail-Header */
      $mail_header = "Content-Type: multipart/mixed; boundary=$boundary\n";
      /* Hier faengt der normale Mail-Text an */
      $mail_header .= "--$boundary\n";
      /* Format - (html o. txt) */
      if($content_type == "text")
       {
        $mail_header .= "Content-Type: text/plain\n";
        $mail_header .= "Content-Transfer-Encoding: 7bit\n\n";
        $msg = str_replace(chr(10),"",$msg);
        $msg = utf8_decode($msg);
       }
      else
       {
        $mail_header .= "Content-Type: text/html\n";
        $mail_header .= "Content-Transfer-Encoding: 8bit\n\n";
       }
      $mail_header .= "$msg\n\n";
      /* Hier faengt der Datei-Anhang an */
      $datei_name = utf8_decode($datei_name);
      $mail_header .= "--$boundary\n";
      $mail_header .= "Content-Type: application/octetstream; name=\"$datei_name\"\n";
      /* Codierung immer BASE64 */
      $mail_header .= "Content-Transfer-Encoding: base64\n";
      $mail_header .= "Content-Disposition: attachment; filename=\"$datei_name\"\n\n";
      $mail_header .= "$datei_content\n";
      /* Gibt das Ende der eMail aus */
      $mail_header .= "--$boundary--\n";
     }
    else
     {
      /* Format - (html o. txt) */
      if($content_type == "text")
       {
        $content_type = "Content-Type: text/plain\n";
        $encoding = "Content-Transfer-Encoding: 7bit\n";
        $msg = str_replace(chr(10),"",$msg);
        $msg = utf8_decode($msg);
       }
      if($content_type == "html")
       {
        $content_type = "Content-Type: text/html\n";
        $encoding = "Content-Transfer-Encoding: 8bit\n";
       }
     }
    $i = 0;
    while ($i<$anzahl)
     {
      $header = "MIME-Version: 1.0\n"
              . $from
              . $reply
              . $cc
              . $bcc
              . $mail_header
              . $content_type
              . $encoding
              . $wichtigkeit;
      mail($empfaenger,$betreff,$msg,$header);
      $k = $i+1;
      print "Sende E-Mail #$k<br />";
      $i++;
     }
    if($k > 1)
     {$s = "$k E-Mails";}
    else
     {$s = "Eine E-Mail";}
    echo "<br />$s erfolgreich versandt!";
   };
?>
  <h1><a href="http://php-mail-form.com">PHP Mail Formular <?=$version;?></a></h1>
  <div class="a">
   <form enctype="multipart/form-data" method="post" action="mailp.php">
    <div><label for="anzahl">Anzahl:</label></div>
    <div class="left">
     <input id="anzahl" class="s" type="text" name="anzahl" tabindex="1" />
     <select class="ml" name="priority" tabindex="2">
      <option value="high">Wichtigkeit: Hoch</option>
      <option selected="selected">Wichtigkeit: Normal</option>
      <option value="low">Wichtigkeit: Niedrig</option>
     </select>
    </div>
    <div class="right">
     <select class="lh" name="content_type" tabindex="3">
      <option value="text">Format: Text</option>
      <option value="html">Format: HTML</option>
     </select>
    </div>
    <p class="lh">&nbsp;<br /></p>
    <div class="left"><label for="absender">Absender:</label></div>
    <div class="right"><label for="reply">Antworten senden an:</label></div>
    <div><input id="absender" class="left" type="text" name="absender" tabindex="4" /></div>
    <div><input id="reply" class="right" type="text" name="reply" tabindex="5" /></div>
    <p><br /></p>
    <div class="left"><label for="empfaenger">Empf&auml;nger:</label></div>
    <div class="right"><label for="cc">Kopie:</label></div>
    <div><input id="empfaenger" class="left" type="text" name="empfaenger" tabindex="6" /></div>
    <div><input id="cc" class="right" type="text" name="cc" tabindex="7" /></div>
    <p>&nbsp;<br /></p>
    <div class="left"><label for="betreff">Betreff:</label></div>
    <div class="right"><label for="bcc">Blind-Kopie:</label></div>
    <div><input id="betreff" class="left" type="text" name="betreff" tabindex="8" /></div>
    <div><input id="bcc" class="right" type="text" name="bcc" tabindex="9" /></div>
    <p>&nbsp;<br /></p>
    <p>
     <label for="msg">Text:</label><br />
     <textarea id="msg" cols="60" rows="9" name="msg" tabindex="10"></textarea>
    </p>
    <div class="left">
     <label for="anhang">Anhang:</label><br />
     <input style="width:530px;" id="anhang" type="file" size="63" name="datei" tabindex="11" />
    </div>
    <div class="right">
     <label for="senden">E-Mail:</label><br />
     <input id="senden" class="center" type="submit" value="Senden" name="senden" tabindex="12" />
     <input class="reset" type="reset" value="L&ouml;schen" tabindex="13" />
   </form>
  </div>
 </body>
</html>