| 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 | function viewText($color, $body, $id, $entid, $mailbox, $type1, $wrap_at) { |
| 24 | global $where, $what, $charset; |
| 25 | global $startMessage; |
| 26 | |
| 27 | displayPageHeader($color, 'None'); |
| 28 | |
| 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 | $body = MagicHTML( $body, $id ); |
| 50 | } else { |
| 51 | translateText($body, $wrap_at, $charset); |
| 52 | } |
| 53 | |
| 54 | flush(); |
| 55 | echo $body . |
| 56 | "</TT></TD></TR></TABLE>"; |
| 57 | } |
| 58 | |
| 59 | $imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0); |
| 60 | sqimap_mailbox_select($imapConnection, $mailbox); |
| 61 | |
| 62 | /* |
| 63 | * $message contains all information about the message |
| 64 | * including header and body |
| 65 | */ |
| 66 | $message = sqimap_get_message($imapConnection, $passed_id, $mailbox); |
| 67 | $top_header = $message->header; |
| 68 | |
| 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 | */ |
| 74 | $message = getEntity($message, $passed_ent_id); |
| 75 | |
| 76 | $header = $message->header; |
| 77 | |
| 78 | $charset = $header->charset; |
| 79 | $type0 = $header->type0; |
| 80 | $type1 = $header->type1; |
| 81 | if (isset($override_type0)) { |
| 82 | $type0 = $override_type0; |
| 83 | } |
| 84 | if (isset($override_type1)) { |
| 85 | $type1 = $override_type1; |
| 86 | } |
| 87 | $filename = decodeHeader($header->filename); |
| 88 | if (!$filename) { |
| 89 | $filename = decodeHeader($header->name); |
| 90 | } |
| 91 | |
| 92 | if (strlen($filename) < 1) { |
| 93 | if ($type1 == 'plain' && $type0 == 'text') { |
| 94 | $suffix = 'txt'; |
| 95 | } else if ($type1 == 'richtext' && $type0 == 'text') { |
| 96 | $suffix = 'rtf'; |
| 97 | } else if ($type1 == 'postscript' && $type0 == 'application') { |
| 98 | $suffix = 'ps'; |
| 99 | } else if ($type1 == 'message' && $type0 == 'rfc822') { |
| 100 | $suffix = 'msg'; |
| 101 | } else { |
| 102 | $suffix = $type1; |
| 103 | } |
| 104 | |
| 105 | $filename = "untitled$passed_ent_id.$suffix"; |
| 106 | } |
| 107 | |
| 108 | /* |
| 109 | * Note: |
| 110 | * The following sections display the attachment in different |
| 111 | * ways depending on how they choose. The first way will download |
| 112 | * under any circumstance. This sets the Content-type to be |
| 113 | * applicatin/octet-stream, which should be interpreted by the |
| 114 | * browser as "download me". |
| 115 | * The second method (view) is used for images or other formats |
| 116 | * that should be able to be handled by the browser. It will |
| 117 | * most likely display the attachment inline inside the browser. |
| 118 | * And finally, the third one will be used by default. If it |
| 119 | * is displayable (text or html), it will load them up in a text |
| 120 | * viewer (built in to squirrelmail). Otherwise, it sets the |
| 121 | * content-type as application/octet-stream |
| 122 | */ |
| 123 | if (isset($absolute_dl) && $absolute_dl == 'true') { |
| 124 | switch($type0) { |
| 125 | case 'text': |
| 126 | DumpHeaders($type0, $type1, $filename, 1); |
| 127 | $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id); |
| 128 | $body = decodeBody($body, $header->encoding); |
| 129 | if ($type1 == 'plain' && isset($showHeaders)) { |
| 130 | echo _("Subject") . ": " . decodeHeader($top_header->subject) . "\n". |
| 131 | " " . _("From") . ": " . decodeHeader($top_header->from) . "\n". |
| 132 | " " . _("To") . ": " . decodeHeader(getLineOfAddrs($top_header->to)) . "\n". |
| 133 | " " . _("Date") . ": " . getLongDateString($top_header->date) . "\n\n"; |
| 134 | } elseif ($type1 == 'html' && isset($showHeaders)) { |
| 135 | echo '<table><tr><th align=right>' . _("Subject"). |
| 136 | ':</th><td>' . decodeHeader($top_header->subject). |
| 137 | "</td></tr>\n<tr><th align=right>" . _("From"). |
| 138 | ':</th><td>' . decodeHeader($top_header->from). |
| 139 | "</td></tr>\n<tr><th align=right>" . _("To"). |
| 140 | ':</th><td>' . decodeHeader(getLineOfAddrs($top_header->to)). |
| 141 | "</td></tr>\n<tr><th align=right>" . _("Date"). |
| 142 | ':</th><td>' . getLongDateString($top_header->date). |
| 143 | "</td></tr>\n</table>\n<hr>\n"; |
| 144 | } |
| 145 | echo $body; |
| 146 | break; |
| 147 | default: |
| 148 | DumpHeaders($type0, $type1, $filename, 1); |
| 149 | mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding); |
| 150 | break; |
| 151 | } |
| 152 | } else { |
| 153 | switch ($type0) { |
| 154 | case 'text': |
| 155 | if ($type1 == 'plain' || $type1 == 'html') { |
| 156 | $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id); |
| 157 | $body = decodeBody($body, $header->encoding); |
| 158 | viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at); |
| 159 | } else { |
| 160 | DumpHeaders($type0, $type1, $filename, 0); |
| 161 | $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id); |
| 162 | $body = decodeBody($body, $header->encoding); |
| 163 | echo $body; |
| 164 | } |
| 165 | break; |
| 166 | case 'message': |
| 167 | $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id); |
| 168 | $body = decodeBody($body, $header->encoding); |
| 169 | viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at); |
| 170 | break; |
| 171 | default: |
| 172 | DumpHeaders($type0, $type1, $filename, 0); |
| 173 | mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding); |
| 174 | break; |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | |
| 179 | /* |
| 180 | * This function is verified to work with Netscape and the *very latest* |
| 181 | * version of IE. I don't know if it works with Opera, but it should now. |
| 182 | */ |
| 183 | function DumpHeaders($type0, $type1, $filename, $force) { |
| 184 | global $HTTP_USER_AGENT; |
| 185 | |
| 186 | $isIE = 0; |
| 187 | if (strstr($HTTP_USER_AGENT, 'compatible; MSIE ') !== false && |
| 188 | strstr($HTTP_USER_AGENT, 'Opera') === false) { |
| 189 | $isIE = 1; |
| 190 | } |
| 191 | |
| 192 | $filename = ereg_replace('[^-a-zA-Z0-9\.]', '_', $filename); |
| 193 | |
| 194 | // A Pox on Microsoft and it's Office! |
| 195 | if (! $force) { |
| 196 | // Try to show in browser window |
| 197 | header("Content-Disposition: inline; filename=\"$filename\""); |
| 198 | header("Content-Type: $type0/$type1; name=\"$filename\""); |
| 199 | } else { |
| 200 | // Try to pop up the "save as" box |
| 201 | // IE makes this hard. It pops up 2 save boxes, or none. |
| 202 | // http://support.microsoft.com/support/kb/articles/Q238/5/88.ASP |
| 203 | // But, accordint to Microsoft, it is "RFC compliant but doesn't |
| 204 | // take into account some deviations that allowed within the |
| 205 | // specification." Doesn't that mean RFC non-compliant? |
| 206 | // http://support.microsoft.com/support/kb/articles/Q258/4/52.ASP |
| 207 | // |
| 208 | // The best thing you can do for IE is to upgrade to the latest |
| 209 | // version |
| 210 | if ($isIE) { |
| 211 | // http://support.microsoft.com/support/kb/articles/Q182/3/15.asp |
| 212 | // Do not have quotes around filename, but that applied to |
| 213 | // "attachment"... does it apply to inline too? |
| 214 | // |
| 215 | // This combination seems to work mostly. IE 5.5 SP 1 has |
| 216 | // known issues (see the Microsoft Knowledge Base) |
| 217 | header("Content-Disposition: inline; filename=$filename"); |
| 218 | |
| 219 | // This works for most types, but doesn't work with Word files |
| 220 | header("Content-Type: application/download; name=\"$filename\""); |
| 221 | |
| 222 | // These are spares, just in case. :-) |
| 223 | //header("Content-Type: $type0/$type1; name=\"$filename\""); |
| 224 | //header("Content-Type: application/x-msdownload; name=\"$filename\""); |
| 225 | //header("Content-Type: application/octet-stream; name=\"$filename\""); |
| 226 | } else { |
| 227 | header("Content-Disposition: attachment; filename=\"$filename\""); |
| 228 | // application/octet-stream forces download for Netscape |
| 229 | header("Content-Type: application/octet-stream; name=\"$filename\""); |
| 230 | } |
| 231 | } |
| 232 | } |
| 233 | ?> |