PHP通过eml邮件文件提取图片附件

<?php

 // Author: YangYu [e-mail]

 // msn: [e-mail]
// gets parameters

if(isset($_GET['path'])) {

   define(EML_FILE_PATH,$_GET['path']);

} else {

   define(EML_FILE_PATH,'./eml/');

}

$filename = $_GET['filename'] ? $_GET['filename'] : '';

if ($filename == '') $filename = '1.eml';
$eml_file = EML_FILE_PATH.$filename;

 

if (!($content = fread(fopen(EML_FILE_PATH.$filename, 'rb'), filesize(EML_FILE_PATH.$filename))))

    die('File not found ('.EML_FILE_PATH.$filename.')');

 

 

$content = str_replace("/r", "", $content);

$seperator = "------=_";

 

 

$content = explode($seperator, $content);

 

$items = array();

$keyid = 0;

foreach($content as $item) {

  if(substr($item, 0, 9) == "NextPart_") {

      $title = substr($item, 0, strpos($item, "/n"));

  } elseif (substr($item, 0, 18) == "    [Content-Type]") {

      $title = substr($item, 0, strpos($item, ""));

  } else {

      $title="Headers";

  }

  $item = substr($item, strpos($item, "/n")+1);

 

  if(substr(trim($item), 0, 4) == "id <") {$item = substr($item, strpos($item, "/n")+1);}

 

  $header = substr($item, 0, strpos($item, "/n/n"));

  $body = substr($item, strpos($item, "/n/n")+2);

  $headerlines = explode("/n", $header);

  foreach($headerlines as $line) {

    if(substr($line, 0, 1) == "/t") {

   $headers[$linetitle] .= "/n".$line;

 } else {

   $linetitle = substr($line, 0, strpos($line, ":"));

   $headers[$linetitle] = substr($line, strpos($line, ":")+1);

 }

  }

  $ct_end = strpos($headers['Content-Type'], ";") ? strpos($headers['Content-Type'], ";") : strlen($headers['Content-Type']);

  $contenttype = trim(substr($headers['Content-Type'], 0, $ct_end));

  if($contenttype == "text/plain") {

    $keyname = "text";

  } else {

    $keyname = $keyid;

  }

  $items[$keyname] = array("partname" => $title, "headers" => $headers, "content-type" => $contenttype, "body" => $body);

  if(isset($plaintext) && $plaintext === true) {

    $items[0] = array("partname" => "Headers", "headers" => $headers, "content-type" => $contenttype, "body" => $body);

  }

  unset($headers);

  $keyid++;

}

 

 

foreach($items as $key=>$part) {
 

  if(

$part['content-type'] != "" && (

  $part['content-type'] == 'image/gif' ||
  $part['content-type'] == 'image/jpeg')) {
  

   $attachments_name = EML_FILE_PATH.'img/'.str_replace('"','',getValue($part['headers']['Content-Disposition'],'filename=',''));
   

   //————————————————debug——————————————————————————
   //echo 'yangyu'.$part['body'].'yangyu';exit(); 
   //————————————————debug——————————————————————————
   writeover($attachments_name,base64_decode($part['body']));

 }

}

die('yangyu');  //——————debug——————
 

 

function getValue($str, $left, $right){
 $len1 = strlen($left);
 $pos1 = strpos($str, $left);
 if($pos1 === false) return;
 if ($right == '') {
  $s = substr($str, $pos1+strlen($left));
 } else{
  $pos2 = strpos($str, $right, $pos1+strlen($left));
  if ($pos2 === false){
   return false;
  }
  $s = substr($str, $pos1+strlen($left), $pos2-($pos1+strlen($left)));
 } 
 return $s;
}

function writeover($filename,$data,$method="rb+",$iflock=1,$check=1,$chmod=1){
 $check && strpos($filename,'..')!==false && exit('Forbidden');
 touch($filename);
 $handle = fopen($filename,$method);
 $iflock && flock($handle,LOCK_EX);
 fwrite($handle,$data);
 $method=="rb+" && ftruncate($handle,strlen($data));
 fclose($handle);
 $chmod && @chmod($filename,0777);
}

?>

 

 

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/yangyu112654374/archive/2009/05/26/4217551.aspx