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    if (!isset($strings_php))
  15       include("../functions/strings.php");
  16    if (!isset($config_php))
  17       include("../config/config.php");
  18    if (!isset($imap_php))
  19       include("../functions/imap.php");
  20    if (!isset($mime_php))
  21       include("../functions/mime.php");
  22    if (!isset($date_php))
  23       include("../functions/date.php");
  24    if (!isset($i18n_php))
  25       include("../functions/i18n.php");
  26
  27    session_start();
  28    header("Pragma: ");
  29    header("Cache-Control: cache");
  30
  31    include("../src/load_prefs.php");
  32
  33    function viewText($color, $body, $id, $entid, $mailbox, $type1, $wrap_at) {
  34       global $where, $what, $charset;
  35       global $startMessage;
  36
  37       displayPageHeader($color, "None");
  38
  39       echo "<BR><TABLE WIDTH=100% BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">";
  40       echo "<B><CENTER>";
  41       echo _("Viewing a text attachment") . " - ";
  42       if ($where && $what) {
  43          // from a search
  44          echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&where=".urlencode($where)."&what=".urlencode($what)."\">". _("View message") . "</a>";
  45       } else {
  46          echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&startMessage=$startMessage&show_more=0\">". _("View message") . "</a>";
  47       }
  48
  49       $urlmailbox = urlencode($mailbox);
  50       echo "</b></td><tr><tr><td><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$entid&mailbox=$urlmailbox\">";
  51       echo _("Download this as a file");
  52       echo "</A></CENTER><BR>";
  53       echo "</CENTER></B>";
  54       echo "</TD></TR></TABLE>";
  55
  56       echo "<TABLE WIDTH=98% BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">";
  57       echo "<TR><TD BGCOLOR=\"$color[4]\"><TT>";
  58
  59       if ($type1 != "html")
  60          translateText($body, $wrap_at, $charset);
  61
  62       echo $body;
  63
  64       echo "</TT></TD></TR></TABLE>";
  65    }
  66
  67    $imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0);
  68    sqimap_mailbox_select($imapConnection, $mailbox);
  69
  70    // $message contains all information about the message
  71    // including header and body
  72    $message = sqimap_get_message($imapConnection, $passed_id, $mailbox);
  73    $top_header = $message->header;
  74
  75    // lets redefine message as this particular entity that we wish to display.
  76    // it should hold only the header for this entity.  We need to fetch the body
  77    // yet before we can display anything.
  78    $message = getEntity($message, $passed_ent_id);
  79
  80    $header = $message->header;
  81
  82    $charset = $header->charset;
  83    $type0 = $header->type0;
  84    $type1 = $header->type1;
  85    if (isset($override_type0))
  86        $type0 = $override_type0;
  87    if (isset($override_type1))
  88        $type1 = $override_type1;
  89    $filename = decodeHeader($header->filename);
  90    if (!$filename) {
  91       $filename = decodeHeader($header->name);
  92    }
  93
  94    if (strlen($filename) < 1) {
  95       if ($type1 == "plain" && $type0 == "text")                  $suffix = "txt";
  96       else if ($type1 == "richtext" && $type0 == "text")          $suffix = "rtf";
  97       else if ($type1 == "postscript" && $type0 == "application") $suffix = "ps";
  98       else if ($type1 == "message" && $type0 == "rfc822")         $suffix = "msg";
  99       else $suffix = $type1;
 100
 101       $filename = "untitled$passed_ent_id.$suffix";
 102    }
 103
 104    // Note:
 105    //    The following sections display the attachment in different
 106    //    ways depending on how they choose.  The first way will download
 107    //    under any circumstance.  This sets the Content-type to be
 108    //    applicatin/octet-stream, which should be interpreted by the
 109    //    browser as "download me".
 110    //      The second method (view) is used for images or other formats
 111    //    that should be able to be handled by the browser.  It will
 112    //    most likely display the attachment inline inside the browser.
 113    //      And finally, the third one will be used by default.  If it
 114    //    is displayable (text or html), it will load them up in a text
 115    //    viewer (built in to squirrelmail).  Otherwise, it sets the
 116    //    content-type as application/octet-stream
 117
 118    if (isset($absolute_dl) && $absolute_dl == "true") {
 119       switch($type0) {
 120          case "text":
 121             $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
 122             $body = decodeBody($body, $header->encoding);
 123             header("Content-Disposition: attachment; filename=\"$filename\"");
 124             header("Content-type: application/octet-stream; name=\"$filename\"");
 125             set_up_language(getPref($data_dir, $username, "language"));
 126             if ($type1 == "plain") {
 127                echo _("Subject") . ": " . decodeHeader($top_header->subject) . "\n";
 128                echo "   " . _("From") . ": " . decodeHeader($top_header->from) . "\n";
 129                echo "     " . _("To") . ": " . decodeHeader(getLineOfAddrs($top_header->to)) . "\n";
 130                echo "   " . _("Date") . ": " . getLongDateString($top_header->date) . "\n\n";
 131             }
 132             echo trim($body);
 133             break;
 134          default:
 135             header("Content-Disposition: attachment; filename=\"$filename\"");
 136             header("Content-type: application/octet-stream; name=\"$filename\"");
 137             mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding);
 138             break;
 139       }
 140    } else {
 141       switch ($type0) {
 142          case "text":
 143             if ($type1 == "plain" || $type1 == "html") {
 144                 $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
 145                 $body = decodeBody($body, $header->encoding);
 146                 include("../functions/page_header.php");
 147                 viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at);
 148             } else {
 149                 $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
 150                 $body = decodeBody($body, $header->encoding);
 151                 header("Content-type: $type0/$type1; name=\"$filename\"");
 152                 header("Content-Disposition: attachment; filename=\"$filename\"");
 153                 echo $body;
 154             }
 155             break;
 156          case "message":
 157             $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
 158             $body = decodeBody($body, $header->encoding);
 159             include("../functions/page_header.php");
 160             viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at);
 161             break;
 162          default:
 163             header("Content-type: $type0/$type1; name=\"$filename\"");
 164             header("Content-Disposition: attachment; filename=\"$filename\"");
 165             mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding);
 166             break;
 167       }
 168    }
 169
 170    sqimap_logout($imapConnection);
 171 ?>