src/download.php

   1 <?php
   2
   3 /**
   4  * download.php
   5  *
   6  * Copyright (c) 1999-2005 The SquirrelMail Project Team
   7  * Licensed under the GNU GPL. For full terms see the file COPYING.
   8  *
   9  * Handles attachment downloads to the users computer.
  10  * Also allows displaying of attachments when possible.
  11  *
  12  * @version $Id$
  13  * @package squirrelmail
  14  */
  15
  16 /**
  17  * Path for SquirrelMail required files.
  18  * @ignore
  19  */
  20 define('SM_PATH','../');
  21
  22 /* SquirrelMail required files. */
  23 require_once(SM_PATH . 'include/validate.php');
  24 require_once(SM_PATH . 'functions/imap.php');
  25 require_once(SM_PATH . 'functions/mime.php');
  26
  27 header('Pragma: ');
  28 header('Cache-Control: cache');
  29
  30 /* globals */
  31 sqgetGlobalVar('key',        $key,          SQ_COOKIE);
  32 sqgetGlobalVar('username',   $username,     SQ_SESSION);
  33 sqgetGlobalVar('onetimepad', $onetimepad,   SQ_SESSION);
  34 sqgetGlobalVar('mailbox_cache',$mailbox_cache,SQ_SESSION);
  35 sqgetGlobalVar('messages',   $messages,     SQ_SESSION);
  36 sqgetGlobalVar('mailbox',    $mailbox,      SQ_GET);
  37 sqgetGlobalVar('ent_id',     $ent_id,       SQ_GET);
  38 sqgetGlobalVar('absolute_dl',$absolute_dl,  SQ_GET);
  39 if ( sqgetGlobalVar('passed_id', $temp, SQ_GET) ) {
  40     $passed_id = (int) $temp;
  41 }
  42 if (!sqgetGlobalVar('account', $account, SQ_GET) ) {
  43     $account = 0;
  44 }
  45
  46 global $default_charset;
  47 set_my_charset();
  48
  49 /* end globals */
  50
  51 $imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0);
  52 $aMailbox = sqm_api_mailbox_select($imapConnection, $account, $mailbox,array(),array());
  53
  54 if (isset($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) &&
  55     is_object($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) ) {
  56     $message = $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'];
  57 } else {
  58    $message = sqimap_get_message($imapConnection, $passed_id, $mailbox);
  59    $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'] = $message;
  60 }
  61
  62 //$mbx_response =  sqimap_mailbox_select($imapConnection, $mailbox);
  63
  64 //$message = &$messages[$mbx_response['UIDVALIDITY']]["$passed_id"];
  65 //if (!is_object($message)) {
  66 //    $message = sqimap_get_message($imapConnection,$passed_id, $mailbox);
  67 //}
  68 $subject = $message->rfc822_header->subject;
  69 if ($ent_id) {
  70     // replace message with message part, if message part is requested.
  71     $message = $message->getEntity($ent_id);
  72     $header = $message->header;
  73
  74     if ($message->rfc822_header) {
  75        $subject = $message->rfc822_header->subject;
  76     } else {
  77        $header = $message->header;
  78     }
  79     $type0 = $header->type0;
  80     $type1 = $header->type1;
  81     $encoding = strtolower($header->encoding);
  82 } else {
  83     /* raw message */
  84     $type0 = 'message';
  85     $type1 = 'rfc822';
  86     $encoding = 'US-ASCII';
  87     $header = $message->header;
  88 }
  89
  90 /*
  91  * lets redefine message as this particular entity that we wish to display.
  92  * it should hold only the header for this entity.  We need to fetch the body
  93  * yet before we can display anything.
  94  */
  95
  96 if (isset($override_type0)) {
  97     $type0 = $override_type0;
  98 }
  99 if (isset($override_type1)) {
 100     $type1 = $override_type1;
 101 }
 102 $filename = '';
 103 if (is_object($message->header->disposition)) {
 104     $filename = $header->disposition->getProperty('filename');
 105     if (!$filename) {
 106         $filename = $header->disposition->getProperty('name');
 107     }
 108     if (!$filename) {
 109         $filename = $header->getParameter('name');
 110     }
 111 } else {
 112     $filename = $header->getParameter('name');
 113 }
 114
 115 $filename = decodeHeader($filename,true,false);
 116 $filename = charset_encode($filename,$default_charset,false);
 117
 118 // If name is not set, use subject of email
 119 if (strlen($filename) < 1) {
 120     $filename = decodeHeader($subject, true, true);
 121     $filename = charset_encode($filename,$default_charset,false);
 122     if ($type1 == 'plain' && $type0 == 'text')
 123         $suffix = 'txt';
 124     else if ($type1 == 'richtext' && $type0 == 'text')
 125         $suffix = 'rtf';
 126     else if ($type1 == 'postscript' && $type0 == 'application')
 127         $suffix = 'ps';
 128     else if ($type1 == 'rfc822' && $type0 == 'message')
 129         $suffix = 'msg';
 130     else
 131         $suffix = $type1;
 132
 133     if ($filename == '')
 134         $filename = 'untitled' . strip_tags($ent_id);
 135     $filename = $filename . '.' . $suffix;
 136 }
 137
 138 /*
 139  * Note:
 140  *    The following sections display the attachment in different
 141  *    ways depending on how they choose.  The first way will download
 142  *    under any circumstance.  This sets the Content-type to be
 143  *    applicatin/octet-stream, which should be interpreted by the
 144  *    browser as "download me".
 145  *      The second method (view) is used for images or other formats
 146  *    that should be able to be handled by the browser.  It will
 147  *    most likely display the attachment inline inside the browser.
 148  *      And finally, the third one will be used by default.  If it
 149  *    is displayable (text or html), it will load them up in a text
 150  *    viewer (built in to SquirrelMail).  Otherwise, it sets the
 151  *    content-type as application/octet-stream
 152  */
 153 if (isset($absolute_dl) && $absolute_dl) {
 154     SendDownloadHeaders($type0, $type1, $filename, 1);
 155 } else {
 156     SendDownloadHeaders($type0, $type1, $filename, 0);
 157 }
 158 /* be aware that any warning caused by download.php will corrupt the
 159  * attachment in case of ERROR reporting = E_ALL and the output is the screen */
 160 mime_print_body_lines ($imapConnection, $passed_id, $ent_id, $encoding);
 161 $mailbox_cache[$aMailbox['NAME']] = $aMailbox;
 162 sqsession_register($mailbox_cache,'mailbox_cache');
 163
 164 ?>