src/download.php

   1 <?php
   2
   3 /**
   4  * download.php
   5  *
   6  * Handles attachment downloads to the users computer.
   7  * Also allows displaying of attachments when possible.
   8  *
   9  * @copyright &copy; 1999-2006 The SquirrelMail Project Team
  10  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  11  * @version $Id$
  12  * @package squirrelmail
  13  */
  14
  15 /**
  16  * Path for SquirrelMail required files.
  17  * @ignore
  18  */
  19 define('SM_PATH','../');
  20
  21 /* SquirrelMail required files. */
  22 require_once(SM_PATH . 'include/validate.php');
  23 require_once(SM_PATH . 'functions/imap.php');
  24 require_once(SM_PATH . 'functions/mime.php');
  25
  26 header('Pragma: ');
  27 header('Cache-Control: cache');
  28
  29 /* globals */
  30 sqgetGlobalVar('key',        $key,          SQ_COOKIE);
  31 sqgetGlobalVar('username',   $username,     SQ_SESSION);
  32 sqgetGlobalVar('onetimepad', $onetimepad,   SQ_SESSION);
  33 sqgetGlobalVar('mailbox_cache',$mailbox_cache,SQ_SESSION);
  34 sqgetGlobalVar('messages',   $messages,     SQ_SESSION);
  35 sqgetGlobalVar('mailbox',    $mailbox,      SQ_GET);
  36 sqgetGlobalVar('ent_id',     $ent_id,       SQ_GET);
  37 sqgetGlobalVar('absolute_dl',$absolute_dl,  SQ_GET);
  38 if ( sqgetGlobalVar('passed_id', $temp, SQ_GET) ) {
  39     $passed_id = (int) $temp;
  40 }
  41 if (!sqgetGlobalVar('account', $account, SQ_GET) ) {
  42     $account = 0;
  43 }
  44
  45 global $default_charset;
  46 set_my_charset();
  47
  48 /* end globals */
  49
  50 $imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0);
  51 $aMailbox = sqm_api_mailbox_select($imapConnection, $account, $mailbox,array(),array());
  52
  53 if (isset($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) &&
  54     is_object($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) ) {
  55     $message = $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'];
  56 } else {
  57    $message = sqimap_get_message($imapConnection, $passed_id, $mailbox);
  58    $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'] = $message;
  59 }
  60
  61 //$mbx_response =  sqimap_mailbox_select($imapConnection, $mailbox);
  62
  63 //$message = &$messages[$mbx_response['UIDVALIDITY']]["$passed_id"];
  64 //if (!is_object($message)) {
  65 //    $message = sqimap_get_message($imapConnection,$passed_id, $mailbox);
  66 //}
  67 $subject = $message->rfc822_header->subject;
  68 if ($ent_id) {
  69     // replace message with message part, if message part is requested.
  70     $message = $message->getEntity($ent_id);
  71     $header = $message->header;
  72
  73     if ($message->rfc822_header) {
  74        $subject = $message->rfc822_header->subject;
  75     } else {
  76        $header = $message->header;
  77     }
  78     $type0 = $header->type0;
  79     $type1 = $header->type1;
  80     $encoding = strtolower($header->encoding);
  81 } else {
  82     /* raw message */
  83     $type0 = 'message';
  84     $type1 = 'rfc822';
  85     $encoding = 'US-ASCII';
  86     $header = $message->header;
  87 }
  88
  89 /*
  90  * lets redefine message as this particular entity that we wish to display.
  91  * it should hold only the header for this entity.  We need to fetch the body
  92  * yet before we can display anything.
  93  */
  94
  95 if (isset($override_type0)) {
  96     $type0 = $override_type0;
  97 }
  98 if (isset($override_type1)) {
  99     $type1 = $override_type1;
 100 }
 101 $filename = '';
 102 if (is_object($message->header->disposition)) {
 103     $filename = $header->disposition->getProperty('filename');
 104     if (!$filename) {
 105         $filename = $header->disposition->getProperty('name');
 106     }
 107     if (!$filename) {
 108         $filename = $header->getParameter('name');
 109     }
 110 } else {
 111     $filename = $header->getParameter('name');
 112 }
 113
 114 $filename = decodeHeader($filename,true,false);
 115 $filename = charset_encode($filename,$default_charset,false);
 116
 117 // If name is not set, use subject of email
 118 if (strlen($filename) < 1) {
 119     $filename = decodeHeader($subject, true, true);
 120     $filename = charset_encode($filename,$default_charset,false);
 121     if ($type1 == 'plain' && $type0 == 'text')
 122         $suffix = 'txt';
 123     else if ($type1 == 'richtext' && $type0 == 'text')
 124         $suffix = 'rtf';
 125     else if ($type1 == 'postscript' && $type0 == 'application')
 126         $suffix = 'ps';
 127     else if ($type1 == 'rfc822' && $type0 == 'message')
 128         $suffix = 'msg';
 129     else
 130         $suffix = $type1;
 131
 132     if ($filename == '')
 133         $filename = 'untitled' . strip_tags($ent_id);
 134     $filename = $filename . '.' . $suffix;
 135 }
 136
 137 /*
 138  * Note:
 139  *    The following sections display the attachment in different
 140  *    ways depending on how they choose.  The first way will download
 141  *    under any circumstance.  This sets the Content-type to be
 142  *    applicatin/octet-stream, which should be interpreted by the
 143  *    browser as "download me".
 144  *      The second method (view) is used for images or other formats
 145  *    that should be able to be handled by the browser.  It will
 146  *    most likely display the attachment inline inside the browser.
 147  *      And finally, the third one will be used by default.  If it
 148  *    is displayable (text or html), it will load them up in a text
 149  *    viewer (built in to SquirrelMail).  Otherwise, it sets the
 150  *    content-type as application/octet-stream
 151  */
 152 if (isset($absolute_dl) && $absolute_dl) {
 153     SendDownloadHeaders($type0, $type1, $filename, 1);
 154 } else {
 155     SendDownloadHeaders($type0, $type1, $filename, 0);
 156 }
 157 /* be aware that any warning caused by download.php will corrupt the
 158  * attachment in case of ERROR reporting = E_ALL and the output is the screen */
 159 mime_print_body_lines ($imapConnection, $passed_id, $ent_id, $encoding);
 160 $mailbox_cache[$aMailbox['NAME']] = $aMailbox;
 161 sqsession_register($mailbox_cache,'mailbox_cache');
 162
 163 ?>