Lots of changes for variable initialization - clean up, really,
[squirrelmail.git] / src / download.php
CommitLineData
59177427 1<?php
895905c0 2
35586184 3/**
4 * download.php
5 *
76911253 6 * Copyright (c) 1999-2003 The SquirrelMail Project Team
35586184 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
86725763 15/* Path for SquirrelMail required files. */
16define('SM_PATH','../');
17
18/* SquirrelMail required files. */
08185f2a 19require_once(SM_PATH . 'include/validate.php');
86725763 20require_once(SM_PATH . 'functions/imap.php');
21require_once(SM_PATH . 'functions/mime.php');
6b96544a 22
65c3ec94 23header('Pragma: ');
24header('Cache-Control: cache');
25
0b97a708 26/* globals */
1e12d1ff 27sqgetGlobalVar('key', $key, SQ_COOKIE);
28sqgetGlobalVar('username', $username, SQ_SESSION);
29sqgetGlobalVar('onetimepad', $onetimepad, SQ_SESSION);
30sqgetGlobalVar('messages', $messages, SQ_SESSION);
31sqgetGlobalVar('mailbox', $mailbox, SQ_GET);
32sqgetGlobalVar('ent_id', $ent_id, SQ_GET);
33sqgetGlobalVar('absolute_dl',$absolute_dl, SQ_GET);
34if ( sqgetGlobalVar('passed_id', $temp, SQ_GET) ) {
35 $passed_id = (int) $temp;
36}
1075eaf1 37
0b97a708 38/* end globals */
a91189d6 39$mailbox = urldecode($mailbox);
97d7da3b 40
1075eaf1 41global $uid_support;
97d7da3b 42
1e606225 43$imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0);
44$mbx_response = sqimap_mailbox_select($imapConnection, $mailbox);
97d7da3b 45
1e606225 46$message = &$messages[$mbx_response['UIDVALIDITY']]["$passed_id"];
5a1c48cd 47if (!is_object($message)) {
48 $message = sqimap_get_message($imapConnection,$passed_id, $mailbox);
49}
ff9d4297 50$subject = $message->rfc822_header->subject;
6914aa18 51if ($ent_id) {
52 $message = &$message->getEntity($ent_id);
53 $header = $message->header;
54
55 if ($message->rfc822_header) {
56 $subject = $message->rfc822_header->subject;
57 $charset = $header->content_type->properties['charset'];
58 } else {
59 $header = $message->header;
60 $charset = $header->getParameter('charset');
61 }
62 $type0 = $header->type0;
63 $type1 = $header->type1;
64 $encoding = strtolower($header->encoding);
ff9d4297 65} else {
6914aa18 66 /* raw message */
67 $type0 = 'message';
68 $type1 = 'rfc822';
69 $encoding = "US-ASCII";
ff9d4297 70}
97d7da3b 71
1e606225 72/*
65c3ec94 73 * lets redefine message as this particular entity that we wish to display.
74 * it should hold only the header for this entity. We need to fetch the body
75 * yet before we can display anything.
76 */
65c3ec94 77
65c3ec94 78if (isset($override_type0)) {
79 $type0 = $override_type0;
80}
81if (isset($override_type1)) {
82 $type1 = $override_type1;
83}
ff9d4297 84$filename = '';
85if (is_object($message->header->disposition)) {
a91189d6 86 $filename = $header->disposition->getProperty('filename');
ff9d4297 87 if (!$filename) {
a91189d6 88 $filename = $header->disposition->getProperty('name');
ff9d4297 89 }
6914aa18 90 if (!$filename) {
a91189d6 91 $filename = $header->getParameter('name');
6914aa18 92 }
cf22004d 93} else {
a91189d6 94 $filename = $header->getParameter('name');
65c3ec94 95}
a91189d6 96$filename = decodeHeader($filename);
65c3ec94 97if (strlen($filename) < 1) {
98 if ($type1 == 'plain' && $type0 == 'text') {
99 $suffix = 'txt';
ff9d4297 100 $filename = $subject . '.txt';
65c3ec94 101 } else if ($type1 == 'richtext' && $type0 == 'text') {
102 $suffix = 'rtf';
ff9d4297 103 $filename = $subject . '.rtf';
65c3ec94 104 } else if ($type1 == 'postscript' && $type0 == 'application') {
105 $suffix = 'ps';
ff9d4297 106 $filename = $subject . '.ps';
97d7da3b 107 } else if ($type1 == 'rfc822' && $type0 == 'message') {
108 $suffix = 'eml';
ff9d4297 109 $filename = $subject . '.msg';
65c3ec94 110 } else {
111 $suffix = $type1;
112 }
113
631db37e 114 if (strlen($filename) < 1) {
9b761dbd 115 $filename = 'untitled'.strip_tags($ent_id).$suffix;
631db37e 116 } else {
ff9d4297 117 $filename = "$filename.$suffix";
631db37e 118 }
65c3ec94 119}
120
121/*
122 * Note:
123 * The following sections display the attachment in different
124 * ways depending on how they choose. The first way will download
125 * under any circumstance. This sets the Content-type to be
126 * applicatin/octet-stream, which should be interpreted by the
127 * browser as "download me".
128 * The second method (view) is used for images or other formats
129 * that should be able to be handled by the browser. It will
130 * most likely display the attachment inline inside the browser.
131 * And finally, the third one will be used by default. If it
132 * is displayable (text or html), it will load them up in a text
133 * viewer (built in to squirrelmail). Otherwise, it sets the
134 * content-type as application/octet-stream
135 */
88d916ee 136if (isset($absolute_dl) && $absolute_dl) {
5c553e34 137 DumpHeaders($type0, $type1, $filename, 1);
65c3ec94 138} else {
5c553e34 139 DumpHeaders($type0, $type1, $filename, 0);
65c3ec94 140}
38bca81c 141/* be aware that any warning caused by download.php will corrupt the
142 * attachment in case of ERROR reporting = E_ALL and the output is the screen */
ff9d4297 143mime_print_body_lines ($imapConnection, $passed_id, $ent_id, $encoding);
65c3ec94 144
65c3ec94 145/*
146 * This function is verified to work with Netscape and the *very latest*
147 * version of IE. I don't know if it works with Opera, but it should now.
148 */
149function DumpHeaders($type0, $type1, $filename, $force) {
1e12d1ff 150 global $languages, $squirrelmail_language;
88d916ee 151 $isIE = $isIE6 = 0;
97d7da3b 152
1e12d1ff 153 sqgetGlobalVar('HTTP_USER_AGENT', $HTTP_USER_AGENT, SQ_SERVER);
0b97a708 154
65c3ec94 155 if (strstr($HTTP_USER_AGENT, 'compatible; MSIE ') !== false &&
156 strstr($HTTP_USER_AGENT, 'Opera') === false) {
36294f1a 157 $isIE = 1;
65c3ec94 158 }
159
97d7da3b 160 if (strstr($HTTP_USER_AGENT, 'compatible; MSIE 6') !== false &&
161 strstr($HTTP_USER_AGENT, 'Opera') === false) {
162 $isIE6 = 1;
163 }
164
7dae3923 165 if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
166 function_exists($languages[$squirrelmail_language]['XTRA_CODE'])) {
6fbd125b 167 $filename =
168 $languages[$squirrelmail_language]['XTRA_CODE']('downloadfilename', $filename, $HTTP_USER_AGENT);
83be314a 169 } else {
7dae3923 170 $filename = ereg_replace('[^-a-zA-Z0-9\.]', '_', $filename);
83be314a 171 }
65c3ec94 172
173 // A Pox on Microsoft and it's Office!
88d916ee 174 if (!$force) {
65c3ec94 175 // Try to show in browser window
176 header("Content-Disposition: inline; filename=\"$filename\"");
177 header("Content-Type: $type0/$type1; name=\"$filename\"");
178 } else {
179 // Try to pop up the "save as" box
180 // IE makes this hard. It pops up 2 save boxes, or none.
181 // http://support.microsoft.com/support/kb/articles/Q238/5/88.ASP
182 // But, accordint to Microsoft, it is "RFC compliant but doesn't
183 // take into account some deviations that allowed within the
184 // specification." Doesn't that mean RFC non-compliant?
185 // http://support.microsoft.com/support/kb/articles/Q258/4/52.ASP
186 //
187 // The best thing you can do for IE is to upgrade to the latest
188 // version
88d916ee 189 if ($isIE && !$isIE6) {
65c3ec94 190 // http://support.microsoft.com/support/kb/articles/Q182/3/15.asp
191 // Do not have quotes around filename, but that applied to
192 // "attachment"... does it apply to inline too?
193 //
194 // This combination seems to work mostly. IE 5.5 SP 1 has
195 // known issues (see the Microsoft Knowledge Base)
196 header("Content-Disposition: inline; filename=$filename");
65c3ec94 197 // This works for most types, but doesn't work with Word files
198 header("Content-Type: application/download; name=\"$filename\"");
199
200 // These are spares, just in case. :-)
201 //header("Content-Type: $type0/$type1; name=\"$filename\"");
202 //header("Content-Type: application/x-msdownload; name=\"$filename\"");
203 //header("Content-Type: application/octet-stream; name=\"$filename\"");
204 } else {
205 header("Content-Disposition: attachment; filename=\"$filename\"");
206 // application/octet-stream forces download for Netscape
207 header("Content-Type: application/octet-stream; name=\"$filename\"");
208 }
209 }
210}
631db37e 211?>