src/download.php

   1 <?php
   2
   3 /**
   4  * download.php
   5  *
   6  * Copyright (c) 1999-2002 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  * $Id$
  13  */
  14
  15 require_once('../src/validate.php');
  16 require_once('../functions/imap.php');
  17 require_once('../functions/mime.php');
  18 require_once('../functions/date.php');
  19
  20 header('Pragma: ');
  21 header('Cache-Control: cache');
  22
  23
  24 function viewText($color, $body, $id, $entid, $mailbox, $type1, $wrap_at, $imapConnection) {
  25     global $where, $what, $charset;
  26     global $startMessage;
  27
  28     displayPageHeader($color, 'None');
  29     echo "<BR><TABLE WIDTH=\"100%\" BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">".
  30          "<B><CENTER>".
  31          _("Viewing a text attachment") . " - ";
  32     if ($where && $what) {
  33         // from a search
  34         echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&where=".urlencode($where)."&what=".urlencode($what)."\">". _("View message") . "</a>";
  35     } else {
  36         echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&startMessage=$startMessage&show_more=0\">". _("View message") . "</a>";
  37     }
  38
  39     $urlmailbox = urlencode($mailbox);
  40     echo "</b></td><tr><tr><td><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$entid&mailbox=$urlmailbox\">".
  41          _("Download this as a file").
  42          "</A></CENTER><BR>".
  43          "</CENTER></B>".
  44          "</TD></TR></TABLE>".
  45          "<TABLE WIDTH=\"98%\" BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">".
  46          "<TR><TD BGCOLOR=\"$color[4]\"><TT>";
  47
  48     if ($type1 == 'html') {
  49         $msg  = sqimap_get_message($imapConnection, $id, $mailbox);
  50         $msg = $msg->getEntity($entid);
  51         $body = MagicHTML( $body, $id, $msg );
  52     } else {
  53         translateText($body, $wrap_at, $charset);
  54     }
  55
  56     flush();
  57     echo $body .
  58          "</TT></TD></TR></TABLE>";
  59 }
  60
  61 function get_extract_to_target_list($imapConnection) {
  62     $boxes = sqimap_mailbox_list($imapConnection);
  63     for ($i = 0; $i < count($boxes); $i++) {
  64         if (!in_array('noselect', $boxes[$i]['flags'])) {
  65             $box = $boxes[$i]['unformatted'];
  66             $box2 = str_replace(' ', '&nbsp;', $boxes[$i]['unformatted-disp']);
  67             if ( $box2 == 'INBOX' ) {
  68                 $box2 = _("INBOX");
  69             }
  70             echo "<option value=\"$box\">$box2</option>\n";
  71         }
  72     }
  73 }
  74 $mailbox = decodeHeader($mailbox);
  75
  76 global $messages, $uid_support;
  77
  78
  79
  80 $imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0);
  81 $mbx_response =  sqimap_mailbox_select($imapConnection, $mailbox);
  82
  83 $message = &$messages[$mbx_response['UIDVALIDITY']]["$passed_id"];
  84 $message = &$message->getEntity($passed_ent_id);
  85
  86 $header = $message->header;
  87 $charset = $header->charset;
  88 $type0 = $header->type0;
  89 $type1 = $header->type1;
  90 $encoding = strtolower($header->encoding);
  91
  92
  93
  94
  95 /*
  96 $extracted = false;
  97 if (isset($extract_message) && $extract_message) {
  98   $cmd = "FETCH $passed_id BODY[$passed_ent_id]";
  99   $read = sqimap_run_command ($imapConnection, $cmd, true, $response, $message, $uid_support);
 100   $cnt = count($read);
 101   $body = '';
 102   $length = 0;
 103   for ($i=1;$i<$cnt;$i++) {
 104       $length = $length + strlen($read[$i]);
 105       $body .= $read[$i];
 106   }
 107   if (isset($targetMailbox) && $length>0) {
 108       sqimap_append ($imapConnection, $targetMailbox, $length);
 109       fputs($imapConnection,$body);
 110       sqimap_append_done ($imapConnection);
 111       $extracted = true;
 112   }
 113 }
 114
 115 if (isset($showHeaders)) {
 116   $top_header = sqimap_get_message_header ($imapConnection, $passed_id, $mailbox);
 117 }
 118
 119 */
 120 /*
 121  * lets redefine message as this particular entity that we wish to display.
 122  * it should hold only the header for this entity.  We need to fetch the body
 123  * yet before we can display anything.
 124  */
 125
 126 if (isset($override_type0)) {
 127     $type0 = $override_type0;
 128 }
 129 if (isset($override_type1)) {
 130     $type1 = $override_type1;
 131 }
 132
 133 $filename = decodeHeader($message->header->filename);
 134
 135 if (!$filename) {
 136     $filename = decodeHeader($message->header->name);
 137 }
 138
 139 if (strlen($filename) < 1) {
 140     if ($type1 == 'plain' && $type0 == 'text') {
 141         $suffix = 'txt';
 142     } else if ($type1 == 'richtext' && $type0 == 'text') {
 143         $suffix = 'rtf';
 144     } else if ($type1 == 'postscript' && $type0 == 'application') {
 145         $suffix = 'ps';
 146     } else if ($type1 == 'rfc822' && $type0 == 'message') {
 147         $suffix = 'eml';
 148     } else {
 149         $suffix = $type1;
 150     }
 151
 152     $filename = "untitled$passed_ent_id.$suffix";
 153 }
 154
 155 /*
 156  * Note:
 157  *    The following sections display the attachment in different
 158  *    ways depending on how they choose.  The first way will download
 159  *    under any circumstance.  This sets the Content-type to be
 160  *    applicatin/octet-stream, which should be interpreted by the
 161  *    browser as "download me".
 162  *      The second method (view) is used for images or other formats
 163  *    that should be able to be handled by the browser.  It will
 164  *    most likely display the attachment inline inside the browser.
 165  *      And finally, the third one will be used by default.  If it
 166  *    is displayable (text or html), it will load them up in a text
 167  *    viewer (built in to squirrelmail).  Otherwise, it sets the
 168  *    content-type as application/octet-stream
 169  */
 170 if (isset($absolute_dl) && $absolute_dl == 'true') {
 171     switch($type0) {
 172     case 'text':
 173         DumpHeaders($type0, $type1, $filename, 1);
 174         $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
 175         $body = decodeBody($body, $encoding);
 176         if ($type1 == 'plain' && isset($showHeaders)) {
 177             echo _("Subject") . ": " . decodeHeader($top_header->subject) . "\n".
 178                  "   " . _("From") . ": " . decodeHeader($top_header->from) . "\n".
 179                  "     " . _("To") . ": " . decodeHeader(getLineOfAddrs($top_header->to)) . "\n".
 180                  "   " . _("Date") . ": " . getLongDateString($top_header->date) . "\n\n";
 181         } elseif ($type1 == 'html' && isset($showHeaders)) {
 182             echo '<table><tr><th align=right>' . _("Subject").
 183                  ':</th><td>' . decodeHeader($top_header->subject).
 184                  "</td></tr>\n<tr><th align=right>" . _("From").
 185                  ':</th><td>' . decodeHeader($top_header->from).
 186                  "</td></tr>\n<tr><th align=right>" . _("To").
 187                  ':</th><td>' . decodeHeader(getLineOfAddrs($top_header->to)).
 188                  "</td></tr>\n<tr><th align=right>" . _("Date").
 189                  ':</th><td>' . getLongDateString($top_header->date).
 190                  "</td></tr>\n</table>\n<hr>\n";
 191         }
 192         echo $body;
 193         break;
 194     default:
 195         DumpHeaders($type0, $type1, $filename, 1);
 196 //      if ($message->decoded_body == '') {
 197 //            $message->setBody(mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $encoding));
 198 //      }
 199 //      echo $message->decoded_body;
 200
 201         mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $encoding);
 202         break;
 203     }
 204 } else {
 205     switch ($type0) {
 206     case 'text':
 207         if ($type1 == 'plain' || $type1 == 'html') {
 208             $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
 209             $body = decodeBody($body, $encoding);
 210             viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at, $imapConnection);
 211         } else {
 212             DumpHeaders($type0, $type1, $filename, 0);
 213             $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
 214             $body = decodeBody($body, $encoding);
 215             echo $body;
 216         }
 217         break;
 218     default:
 219         DumpHeaders($type0, $type1, $filename, 0);
 220 //      if ($message->decoded_body == '') {
 221 //            $message->setBody(mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $encoding));
 222 //
 223 //      }
 224 //      echo $message->decoded_body;
 225         mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $encoding);
 226         break;
 227     }
 228 }
 229
 230 $message = &$message->getEntity('');
 231 $messages[$mbx_response['UIDVALIDITY']]["$passed_id"] = &$message;
 232
 233 /*
 234  * This function is verified to work with Netscape and the *very latest*
 235  * version of IE.  I don't know if it works with Opera, but it should now.
 236  */
 237 function DumpHeaders($type0, $type1, $filename, $force) {
 238     global $HTTP_USER_AGENT;
 239     $isIE = 0;
 240
 241
 242     if (strstr($HTTP_USER_AGENT, 'compatible; MSIE ') !== false &&
 243         strstr($HTTP_USER_AGENT, 'Opera') === false) {
 244         $isIE = 1;
 245     }
 246
 247     if (strstr($HTTP_USER_AGENT, 'compatible; MSIE 6') !== false &&
 248         strstr($HTTP_USER_AGENT, 'Opera') === false) {
 249         $isIE6 = 1;
 250     }
 251
 252     $filename = ereg_replace('[^-a-zA-Z0-9\.]', '_', $filename);
 253
 254     // A Pox on Microsoft and it's Office!
 255     if (! $force) {
 256         // Try to show in browser window
 257         header("Content-Disposition: inline; filename=\"$filename\"");
 258         header("Content-Type: $type0/$type1; name=\"$filename\"");
 259     } else {
 260         // Try to pop up the "save as" box
 261         // IE makes this hard.  It pops up 2 save boxes, or none.
 262         // http://support.microsoft.com/support/kb/articles/Q238/5/88.ASP
 263         // But, accordint to Microsoft, it is "RFC compliant but doesn't
 264         // take into account some deviations that allowed within the
 265         // specification."  Doesn't that mean RFC non-compliant?
 266         // http://support.microsoft.com/support/kb/articles/Q258/4/52.ASP
 267         //
 268         // The best thing you can do for IE is to upgrade to the latest
 269         // version
 270         if ($isIE && !isset($isIE6)) {
 271             // http://support.microsoft.com/support/kb/articles/Q182/3/15.asp
 272             // Do not have quotes around filename, but that applied to
 273             // "attachment"... does it apply to inline too?
 274             //
 275             // This combination seems to work mostly.  IE 5.5 SP 1 has
 276             // known issues (see the Microsoft Knowledge Base)
 277             header("Content-Disposition: inline; filename=$filename");
 278
 279             // This works for most types, but doesn't work with Word files
 280             header("Content-Type: application/download; name=\"$filename\"");
 281
 282             // These are spares, just in case.  :-)
 283             //header("Content-Type: $type0/$type1; name=\"$filename\"");
 284             //header("Content-Type: application/x-msdownload; name=\"$filename\"");
 285             //header("Content-Type: application/octet-stream; name=\"$filename\"");
 286         } else {
 287             header("Content-Disposition: attachment; filename=\"$filename\"");
 288             // application/octet-stream forces download for Netscape
 289             header("Content-Type: application/octet-stream; name=\"$filename\"");
 290         }
 291     }
 292 }
 293 ?>