src/download.php

   1 <?php
   2    /**
   3     **  download.php
   4     **
   5     **  Copyright (c) 1999-2000 The SquirrelMail development team
   6     **  Licensed under the GNU GPL. For full terms see the file COPYING.
   7     **
   8     **  Handles attachment downloads to the users computer.
   9     **  Also allows displaying of attachments when possible.
  10     **/
  11
  12    session_start();
  13
  14    if (!isset($config_php))
  15       include("../config/config.php");
  16    if (!isset($strings_php))
  17       include("../functions/strings.php");
  18    if (!isset($page_header_php))
  19       include("../functions/page_header.php");
  20    if (!isset($imap_php))
  21       include("../functions/imap.php");
  22    if (!isset($mime_php))
  23       include("../functions/mime.php");
  24    if (!isset($date_php))
  25       include("../functions/date.php");
  26
  27    include("../src/load_prefs.php");
  28
  29    function viewText($color, $body, $id, $entid, $mailbox, $type1, $wrap_at) {
  30       displayPageHeader($color, "None");
  31
  32       echo "<BR><TABLE WIDTH=90% BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">";
  33       echo "<B><CENTER>";
  34       echo _("Viewing a text attachment") . " - ";
  35       echo "<a href=\"read_body.php?mailbox=$mailbox&passed_id=$id\">". _("View message") . "</a>";
  36       echo "</CENTER></B>";
  37       echo "</TD></TR><TR><TD BGCOLOR=\"$color[4]\">";
  38       $urlmailbox = urlencode($mailbox);
  39       echo "<CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$entid&mailbox=$urlmailbox\">";
  40       echo _("Download this as a file");
  41       echo "</A></CENTER><BR><BR><TT>";
  42       if ($type1 == "html")
  43          echo $body;
  44       else
  45          echo translateText($body, $wrap_at);
  46
  47       echo "</TT></TD></TR></TABLE>";
  48    }
  49
  50    $imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0);
  51    sqimap_mailbox_select($imapConnection, $mailbox);
  52
  53    // $message contains all information about the message
  54    // including header and body
  55    $message = sqimap_get_message($imapConnection, $passed_id, $mailbox);
  56    $top_header = $message->header;
  57
  58    // lets redefine message as this particular entity that we wish to display.
  59    // it should hold only the header for this entity.  We need to fetch the body
  60    // yet before we can display anything.
  61    $message = getEntity($message, $passed_ent_id);
  62
  63    $header = $message->header;
  64    $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
  65
  66    $type0 = $header->type0;
  67    $type1 = $header->type1;
  68    $filename = $header->filename;
  69
  70    if (strlen($filename) < 1) {
  71       # set some standard suffixes to the filenames if the filename isn't known
  72
  73       if ($type1 == "plain" && $type0 == "text")                  $suffix = "txt";
  74       else if ($type1 == "richtext" && $type0 == "text")          $suffix = "rtf";
  75       else if ($type1 == "postscript" && $type0 == "application") $suffix = "ps";
  76       else if ($type1 == "message" && $type0 == "rfc822")         $suffix = "msg";
  77       else $suffix = $type1;
  78
  79       $filename = "untitled$passed_ent_id.$suffix";
  80    }
  81
  82    // Note:
  83    //    The following sections display the attachment in different
  84    //    ways depending on how they choose.  The first way will download
  85    //    under any circumstance.  This sets the Content-type to be
  86    //    applicatin/octet-stream, which should be interpreted by the
  87    //    browser as "download me".
  88    //      The second method (view) is used for images or other formats
  89    //    that should be able to be handled by the browser.  It will
  90    //    most likely display the attachment inline inside the browser.
  91    //      And finally, the third one will be used by default.  If it
  92    //    is displayable (text or html), it will load them up in a text
  93    //    viewer (built in to squirrelmail).  Otherwise, it sets the
  94    //    content-type as application/octet-stream
  95
  96    if ($absolute_dl == "true") {
  97       switch($type0) {
  98          case "text":
  99             $body = decodeBody($body, $header->encoding);
 100             header("Content-type: application/octet-stream; name=\"$filename\"");
 101             header("Content-Disposition: attachment; filename=\"$filename\"");
 102             if ($type1 == "plain") {
 103                echo _("Subject") . ": " . decodeHeader(stripslashes($top_header->subject)) . "\n";
 104                echo "   " . _("From") . ": " . decodeHeader(stripslashes($top_header->from)) . "\n";
 105                echo "     " . _("To") . ": " . decodeHeader(stripslashes(getLineOfAddrs($top_header->to))) . "\n";
 106                echo "   " . _("Date") . ": " . getLongDateString($top_header->date) . "\n\n";
 107             }
 108             echo trim($body);
 109             break;
 110          default:
 111             $body = decodeBody($body, $header->encoding);
 112             header("Content-type: application/octet-stream; name=\"$filename\"");
 113             header("Content-Disposition: attachment; filename=\"$filename\"");
 114             echo $body;
 115             break;
 116       }
 117    } else {
 118       switch ($type0) {
 119          case "text":
 120             $body = decodeBody($body, $header->encoding);
 121             viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at);
 122             break;
 123          case "message":
 124             $body = decodeBody($body, $header->encoding);
 125             viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at);
 126             break;
 127          default:
 128             $body = decodeBody($body, $header->encoding);
 129             header("Content-type: $type0/$type1; name=\"$filename\"");
 130             header("Content-Disposition: attachment; filename=\"$filename\"");
 131             echo $body;
 132             break;
 133       }
 134    }
 135
 136    sqimap_logout($imapConnection);
 137 ?>