| 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 | /*****************************************************************/ |
| 16 | /*** THIS FILE NEEDS TO HAVE ITS FORMATTING FIXED!!! ***/ |
| 17 | /*** PLEASE DO SO AND REMOVE THIS COMMENT SECTION. ***/ |
| 18 | /*** + Base level indent should begin at left margin, as ***/ |
| 19 | /*** the require_once below looks. ***/ |
| 20 | /*** + All identation should consist of four space blocks ***/ |
| 21 | /*** + Tab characters are evil. ***/ |
| 22 | /*** + all comments should use "slash-star ... star-slash" ***/ |
| 23 | /*** style -- no pound characters, no slash-slash style ***/ |
| 24 | /*** + FLOW CONTROL STATEMENTS (if, while, etc) SHOULD ***/ |
| 25 | /*** ALWAYS USE { AND } CHARACTERS!!! ***/ |
| 26 | /*** + Please use ' instead of ", when possible. Note " ***/ |
| 27 | /*** should always be used in _( ) function calls. ***/ |
| 28 | /*** Thank you for your help making the SM code more readable. ***/ |
| 29 | /*****************************************************************/ |
| 30 | |
| 31 | define('download_php', true); // Used for preferences |
| 32 | |
| 33 | require_once('../src/validate.php'); |
| 34 | require_once('../functions/imap.php'); |
| 35 | require_once('../functions/mime.php'); |
| 36 | require_once('../functions/date.php'); |
| 37 | |
| 38 | header("Pragma: "); |
| 39 | header("Cache-Control: cache"); |
| 40 | |
| 41 | function viewText($color, $body, $id, $entid, $mailbox, $type1, $wrap_at) { |
| 42 | global $where, $what, $charset; |
| 43 | global $startMessage; |
| 44 | |
| 45 | displayPageHeader($color, 'None'); |
| 46 | |
| 47 | echo "<BR><TABLE WIDTH=100% BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">"; |
| 48 | echo "<B><CENTER>"; |
| 49 | echo _("Viewing a text attachment") . " - "; |
| 50 | if ($where && $what) { |
| 51 | // from a search |
| 52 | echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&where=".urlencode($where)."&what=".urlencode($what)."\">". _("View message") . "</a>"; |
| 53 | } else { |
| 54 | echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&startMessage=$startMessage&show_more=0\">". _("View message") . "</a>"; |
| 55 | } |
| 56 | |
| 57 | $urlmailbox = urlencode($mailbox); |
| 58 | echo "</b></td><tr><tr><td><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$entid&mailbox=$urlmailbox\">"; |
| 59 | echo _("Download this as a file"); |
| 60 | echo "</A></CENTER><BR>"; |
| 61 | echo "</CENTER></B>"; |
| 62 | echo "</TD></TR></TABLE>"; |
| 63 | |
| 64 | echo "<TABLE WIDTH=98% BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">"; |
| 65 | echo "<TR><TD BGCOLOR=\"$color[4]\"><TT>"; |
| 66 | |
| 67 | if ($type1 == 'html') { |
| 68 | $body = MagicHTML( $body, $id ); |
| 69 | } else { |
| 70 | translateText($body, $wrap_at, $charset); |
| 71 | } |
| 72 | |
| 73 | flush(); |
| 74 | echo $body; |
| 75 | |
| 76 | echo "</TT></TD></TR></TABLE>"; |
| 77 | } |
| 78 | |
| 79 | $imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0); |
| 80 | sqimap_mailbox_select($imapConnection, $mailbox); |
| 81 | |
| 82 | // $message contains all information about the message |
| 83 | // including header and body |
| 84 | $message = sqimap_get_message($imapConnection, $passed_id, $mailbox); |
| 85 | $top_header = $message->header; |
| 86 | |
| 87 | // lets redefine message as this particular entity that we wish to display. |
| 88 | // it should hold only the header for this entity. We need to fetch the body |
| 89 | // yet before we can display anything. |
| 90 | $message = getEntity($message, $passed_ent_id); |
| 91 | |
| 92 | $header = $message->header; |
| 93 | |
| 94 | $charset = $header->charset; |
| 95 | $type0 = $header->type0; |
| 96 | $type1 = $header->type1; |
| 97 | if (isset($override_type0)) |
| 98 | $type0 = $override_type0; |
| 99 | if (isset($override_type1)) |
| 100 | $type1 = $override_type1; |
| 101 | $filename = decodeHeader($header->filename); |
| 102 | if (!$filename) { |
| 103 | $filename = decodeHeader($header->name); |
| 104 | } |
| 105 | |
| 106 | if (strlen($filename) < 1) { |
| 107 | if ($type1 == "plain" && $type0 == "text") $suffix = "txt"; |
| 108 | else if ($type1 == "richtext" && $type0 == "text") $suffix = "rtf"; |
| 109 | else if ($type1 == "postscript" && $type0 == "application") $suffix = "ps"; |
| 110 | else if ($type1 == "message" && $type0 == "rfc822") $suffix = "msg"; |
| 111 | else $suffix = $type1; |
| 112 | |
| 113 | $filename = "untitled$passed_ent_id.$suffix"; |
| 114 | } |
| 115 | |
| 116 | // Note: |
| 117 | // The following sections display the attachment in different |
| 118 | // ways depending on how they choose. The first way will download |
| 119 | // under any circumstance. This sets the Content-type to be |
| 120 | // applicatin/octet-stream, which should be interpreted by the |
| 121 | // browser as "download me". |
| 122 | // The second method (view) is used for images or other formats |
| 123 | // that should be able to be handled by the browser. It will |
| 124 | // most likely display the attachment inline inside the browser. |
| 125 | // And finally, the third one will be used by default. If it |
| 126 | // is displayable (text or html), it will load them up in a text |
| 127 | // viewer (built in to squirrelmail). Otherwise, it sets the |
| 128 | // content-type as application/octet-stream |
| 129 | |
| 130 | if (isset($absolute_dl) && $absolute_dl == "true") { |
| 131 | switch($type0) { |
| 132 | case "text": |
| 133 | DumpHeaders($type0, $type1, $filename, 1); |
| 134 | $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id); |
| 135 | $body = decodeBody($body, $header->encoding); |
| 136 | if ($type1 == "plain" && isset($showHeaders)) { |
| 137 | echo _("Subject") . ": " . decodeHeader($top_header->subject) . "\n"; |
| 138 | echo " " . _("From") . ": " . decodeHeader($top_header->from) . "\n"; |
| 139 | echo " " . _("To") . ": " . decodeHeader(getLineOfAddrs($top_header->to)) . "\n"; |
| 140 | echo " " . _("Date") . ": " . getLongDateString($top_header->date) . "\n\n"; |
| 141 | } |
| 142 | elseif ($type1 == "html" && isset($showHeaders)) { |
| 143 | echo '<table><tr><th align=right>' . _("Subject"); |
| 144 | echo ':</th><td>' . decodeHeader($top_header->subject); |
| 145 | echo "</td></tr>\n<tr><th align=right>" . _("From"); |
| 146 | echo ':</th><td>' . decodeHeader($top_header->from); |
| 147 | echo "</td></tr>\n<tr><th align=right>" . _("To"); |
| 148 | echo ':</th><td>' . decodeHeader(getLineOfAddrs($top_header->to)); |
| 149 | echo "</td></tr>\n<tr><th align=right>" . _("Date"); |
| 150 | echo ':</th><td>' . getLongDateString($top_header->date); |
| 151 | echo "</td></tr>\n</table>\n<hr>\n"; |
| 152 | } |
| 153 | echo $body; |
| 154 | break; |
| 155 | default: |
| 156 | DumpHeaders($type0, $type1, $filename, 1); |
| 157 | mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding); |
| 158 | break; |
| 159 | } |
| 160 | } else { |
| 161 | switch ($type0) { |
| 162 | case "text": |
| 163 | if ($type1 == "plain" || $type1 == "html") { |
| 164 | $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id); |
| 165 | $body = decodeBody($body, $header->encoding); |
| 166 | viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at); |
| 167 | } else { |
| 168 | DumpHeaders($type0, $type1, $filename, 0); |
| 169 | $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id); |
| 170 | $body = decodeBody($body, $header->encoding); |
| 171 | echo $body; |
| 172 | } |
| 173 | break; |
| 174 | case "message": |
| 175 | $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id); |
| 176 | $body = decodeBody($body, $header->encoding); |
| 177 | viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at); |
| 178 | break; |
| 179 | default: |
| 180 | DumpHeaders($type0, $type1, $filename, 0); |
| 181 | mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding); |
| 182 | break; |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | |
| 187 | // This function is verified to work with Netscape and the *very latest* |
| 188 | // version of IE. I don't know if it works with Opera, but it should now. |
| 189 | function DumpHeaders($type0, $type1, $filename, $force) |
| 190 | { |
| 191 | global $HTTP_USER_AGENT; |
| 192 | |
| 193 | $isIE = 0; |
| 194 | if (strstr($HTTP_USER_AGENT, 'compatible; MSIE ') !== false && |
| 195 | strstr($HTTP_USER_AGENT, 'Opera') === false) { |
| 196 | $isIE = 1; |
| 197 | } |
| 198 | |
| 199 | $filename = ereg_replace('[^-a-zA-Z0-9\.]', '_', $filename); |
| 200 | |
| 201 | // A Pox on Microsoft and it's Office! |
| 202 | if (! $force) |
| 203 | { |
| 204 | // Try to show in browser window |
| 205 | header("Content-Disposition: inline; filename=\"$filename\""); |
| 206 | header("Content-Type: $type0/$type1; name=\"$filename\""); |
| 207 | } |
| 208 | else |
| 209 | { |
| 210 | // Try to pop up the "save as" box |
| 211 | // IE makes this hard. It pops up 2 save boxes, or none. |
| 212 | // http://support.microsoft.com/support/kb/articles/Q238/5/88.ASP |
| 213 | // But, accordint to Microsoft, it is "RFC compliant but doesn't |
| 214 | // take into account some deviations that allowed within the |
| 215 | // specification." Doesn't that mean RFC non-compliant? |
| 216 | // http://support.microsoft.com/support/kb/articles/Q258/4/52.ASP |
| 217 | // |
| 218 | // The best thing you can do for IE is to upgrade to the latest |
| 219 | // version |
| 220 | if ($isIE) { |
| 221 | // http://support.microsoft.com/support/kb/articles/Q182/3/15.asp |
| 222 | // Do not have quotes around filename, but that applied to |
| 223 | // "attachment"... does it apply to inline too? |
| 224 | // |
| 225 | // This combination seems to work mostly. IE 5.5 SP 1 has |
| 226 | // known issues (see the Microsoft Knowledge Base) |
| 227 | header("Content-Disposition: inline; filename=$filename"); |
| 228 | |
| 229 | // This works for most types, but doesn't work with Word files |
| 230 | header("Content-Type: application/download; name=\"$filename\""); |
| 231 | |
| 232 | // These are spares, just in case. :-) |
| 233 | //header("Content-Type: $type0/$type1; name=\"$filename\""); |
| 234 | //header("Content-Type: application/x-msdownload; name=\"$filename\""); |
| 235 | //header("Content-Type: application/octet-stream; name=\"$filename\""); |
| 236 | } else { |
| 237 | header("Content-Disposition: attachment; filename=\"$filename\""); |
| 238 | // application/octet-stream forces download for Netscape |
| 239 | header("Content-Type: application/octet-stream; name=\"$filename\""); |
| 240 | } |
| 241 | } |
| 242 | } |
| 243 | ?> |