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   1  <?php
   2  
   3  /**
   4   * Model of an Attachment
   5   */
   6  class MimeMailParser_attachment {
   7  
   8      /**
   9       * @var $filename Filename
  10       */
  11      public  $filename;
  12      /**
  13       * @var $content_type Mime Type
  14       */
  15      public  $content_type;
  16      /**
  17       * @var $content File Content
  18       */
  19      private  $content;
  20      /**
  21       * @var $extension Filename extension
  22       */
  23      private $extension;
  24      /**
  25       * @var $content_disposition Content-Disposition (attachment or inline)
  26       */
  27      public $content_disposition;
  28      /**
  29       * @var $headers An Array of the attachment headers
  30       */
  31      public $headers;
  32      
  33      private  $stream;
  34  
  35  	public function __construct($filename, $content_type, $stream, $content_disposition = 'attachment', $headers = array()) {
  36          $this->filename = $filename;
  37          $this->content_type = $content_type;
  38          $this->stream = $stream;
  39          $this->content = null;
  40          $this->content_disposition = $content_disposition;
  41          $this->headers = $headers;
  42      }
  43      
  44      /**
  45       * retrieve the attachment filename
  46       * @return String
  47       */
  48  	public function getFilename() {
  49          return $this->filename;
  50      }
  51      
  52      /**
  53       * Retrieve the Attachment Content-Type
  54       * @return String
  55       */
  56  	public function getContentType() {
  57          return $this->content_type;
  58      }
  59      
  60      /**
  61       * Retrieve the Attachment Content-Disposition
  62       * @return String
  63       */
  64  	public function getContentDisposition() {
  65          return $this->content_disposition;
  66      }
  67      
  68      /**
  69       * Retrieve the Attachment Headers
  70       * @return String
  71       */
  72  	public function getHeaders() {
  73          return $this->headers;
  74      }
  75      
  76      /**
  77       * Retrieve the file extension
  78       * @return String
  79       */
  80  	public function getFileExtension() {
  81          if (!$this->extension) {
  82              $ext = substr(strrchr($this->filename, '.'), 1);
  83              if ($ext == 'gz') {
  84                  // special case, tar.gz
  85                  // todo: other special cases?
  86                  $ext = preg_match("/\.tar\.gz$/i", $ext) ? 'tar.gz' : 'gz';
  87              }
  88              $this->extension = $ext;
  89          }
  90          return $this->extension;
  91      }
  92      
  93      /**
  94       * Read the contents a few bytes at a time until completed
  95       * Once read to completion, it always returns false
  96       * @return String
  97       * @param $bytes Int[optional]
  98       */
  99  	public function read($bytes = 2082) {
 100          return feof($this->stream) ? false : fread($this->stream, $bytes);
 101      }
 102      
 103      /**
 104       * Retrieve the file content in one go
 105       * Once you retrieve the content you cannot use MimeMailParser_attachment::read()
 106       * @return String
 107       */
 108  	public function getContent() {
 109          if ($this->content === null) {
 110              fseek($this->stream, 0);
 111              while(($buf = $this->read()) !== false) { 
 112                  $this->content .= $buf; 
 113              }
 114          }
 115          return $this->content;
 116      }
 117      
 118      /**
 119       * Allow the properties 
 120       *     MimeMailParser_attachment::$name,
 121       *     MimeMailParser_attachment::$extension 
 122       * to be retrieved as public properties
 123       * @param $name Object
 124       */
 125  	public function __get($name) {
 126          if ($name == 'content') {
 127              return $this->getContent();
 128          } else if ($name == 'extension') {
 129              return $this->getFileExtension();
 130          }
 131          return null;
 132      }
 133      
 134  }
 135  
 136  ?>