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     **  $Id$
  12     **/
  13
  14    define('download_php', true);  // Used for preferences
  15
  16    include('../src/validate.php');
  17    include("../functions/strings.php");
  18    include("../config/config.php");
  19    include("../functions/imap.php");
  20    include("../functions/mime.php");
  21    include("../functions/date.php");
  22    include("../functions/i18n.php");
  23    include("../src/load_prefs.php");
  24
  25    header("Pragma: ");
  26    header("Cache-Control: cache");
  27
  28    function viewText($color, $body, $id, $entid, $mailbox, $type1, $wrap_at) {
  29       global $where, $what, $charset;
  30       global $startMessage;
  31
  32       displayPageHeader($color, "None");
  33
  34       echo "<BR><TABLE WIDTH=100% BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">";
  35       echo "<B><CENTER>";
  36       echo _("Viewing a text attachment") . " - ";
  37       if ($where && $what) {
  38          // from a search
  39          echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&where=".urlencode($where)."&what=".urlencode($what)."\">". _("View message") . "</a>";
  40       } else {
  41          echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&startMessage=$startMessage&show_more=0\">". _("View message") . "</a>";
  42       }
  43
  44       $urlmailbox = urlencode($mailbox);
  45       echo "</b></td><tr><tr><td><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$entid&mailbox=$urlmailbox\">";
  46       echo _("Download this as a file");
  47       echo "</A></CENTER><BR>";
  48       echo "</CENTER></B>";
  49       echo "</TD></TR></TABLE>";
  50
  51       echo "<TABLE WIDTH=98% BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">";
  52       echo "<TR><TD BGCOLOR=\"$color[4]\"><TT>";
  53
  54       if ($type1 != "html")
  55          translateText($body, $wrap_at, $charset);
  56
  57       echo $body;
  58
  59       echo "</TT></TD></TR></TABLE>";
  60    }
  61
  62    $imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0);
  63    sqimap_mailbox_select($imapConnection, $mailbox);
  64
  65    // $message contains all information about the message
  66    // including header and body
  67    $message = sqimap_get_message($imapConnection, $passed_id, $mailbox);
  68    $top_header = $message->header;
  69
  70    // lets redefine message as this particular entity that we wish to display.
  71    // it should hold only the header for this entity.  We need to fetch the body
  72    // yet before we can display anything.
  73    $message = getEntity($message, $passed_ent_id);
  74
  75    $header = $message->header;
  76
  77    $charset = $header->charset;
  78    $type0 = $header->type0;
  79    $type1 = $header->type1;
  80    if (isset($override_type0))
  81        $type0 = $override_type0;
  82    if (isset($override_type1))
  83        $type1 = $override_type1;
  84    $filename = decodeHeader($header->filename);
  85    if (!$filename) {
  86       $filename = decodeHeader($header->name);
  87    }
  88
  89    if (strlen($filename) < 1) {
  90       if ($type1 == "plain" && $type0 == "text")                  $suffix = "txt";
  91       else if ($type1 == "richtext" && $type0 == "text")          $suffix = "rtf";
  92       else if ($type1 == "postscript" && $type0 == "application") $suffix = "ps";
  93       else if ($type1 == "message" && $type0 == "rfc822")         $suffix = "msg";
  94       else $suffix = $type1;
  95
  96       $filename = "untitled$passed_ent_id.$suffix";
  97    }
  98
  99    // Note:
 100    //    The following sections display the attachment in different
 101    //    ways depending on how they choose.  The first way will download
 102    //    under any circumstance.  This sets the Content-type to be
 103    //    applicatin/octet-stream, which should be interpreted by the
 104    //    browser as "download me".
 105    //      The second method (view) is used for images or other formats
 106    //    that should be able to be handled by the browser.  It will
 107    //    most likely display the attachment inline inside the browser.
 108    //      And finally, the third one will be used by default.  If it
 109    //    is displayable (text or html), it will load them up in a text
 110    //    viewer (built in to squirrelmail).  Otherwise, it sets the
 111    //    content-type as application/octet-stream
 112
 113    if (isset($absolute_dl) && $absolute_dl == "true") {
 114       switch($type0) {
 115          case "text":
 116             $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
 117             $body = decodeBody($body, $header->encoding);
 118             set_up_language(getPref($data_dir, $username, "language"));
 119             header("Content-Disposition: attachment; filename=\"$filename\"");
 120             header("Content-type: application/octet-stream; name=\"$filename\"");
 121             if ($type1 == "plain") {
 122                echo _("Subject") . ": " . decodeHeader($top_header->subject) . "\n";
 123                echo "   " . _("From") . ": " . decodeHeader($top_header->from) . "\n";
 124                echo "     " . _("To") . ": " . decodeHeader(getLineOfAddrs($top_header->to)) . "\n";
 125                echo "   " . _("Date") . ": " . getLongDateString($top_header->date) . "\n\n";
 126             }
 127             echo trim($body);
 128             break;
 129          default:
 130             header("Content-Disposition: inline; filename=\"$filename\"");
 131             header("Content-type: application/download; name=\"$filename\"");
 132             mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding);
 133             break;
 134       }
 135    } else {
 136       switch ($type0) {
 137          case "text":
 138             if ($type1 == "plain" || $type1 == "html") {
 139                 $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
 140                 $body = decodeBody($body, $header->encoding);
 141                 include("../functions/page_header.php");
 142                 viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at);
 143             } else {
 144                 $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
 145                 $body = decodeBody($body, $header->encoding);
 146                 header("Content-type: $type0/$type1; name=\"$filename\"");
 147                 header("Content-Disposition: inline; filename=\"$filename\"");
 148                 echo $body;
 149             }
 150             break;
 151          case "message":
 152             $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
 153             $body = decodeBody($body, $header->encoding);
 154             include("../functions/page_header.php");
 155             viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at);
 156             break;
 157          default:
 158             header("Content-type: $type0/$type1; name=\"$filename\"");
 159             header("Content-Disposition: inline; filename=\"$filename\"");
 160             mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding);
 161             break;
 162       }
 163    }
 164
 165    sqimap_logout($imapConnection);
 166 ?>