* modifications for using ent_id=0 for downloading full messages
[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 */
27
28$key = $_COOKIE['key'];
29$username = $_SESSION['username'];
30$onetimepad = $_SESSION['onetimepad'];
31$mailbox = $_GET['mailbox'];
9b761dbd 32$passed_id = (int) $_GET['passed_id'];
ce274df9 33$ent_id = $_GET['ent_id'];
1075eaf1 34$messages = $_SESSION['messages'];
88d916ee 35
36if (isset($_GET['absolute_dl'])) {
37 $absolute_dl = $_GET['absolute_dl'];
0b97a708 38}
1075eaf1 39
0b97a708 40/* end globals */
1e606225 41$mailbox = decodeHeader($mailbox);
97d7da3b 42
1075eaf1 43global $uid_support;
97d7da3b 44
1e606225 45$imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0);
46$mbx_response = sqimap_mailbox_select($imapConnection, $mailbox);
97d7da3b 47
1e606225 48$message = &$messages[$mbx_response['UIDVALIDITY']]["$passed_id"];
5a1c48cd 49if (!is_object($message)) {
50 $message = sqimap_get_message($imapConnection,$passed_id, $mailbox);
51}
ff9d4297 52$subject = $message->rfc822_header->subject;
6914aa18 53if ($ent_id) {
54 $message = &$message->getEntity($ent_id);
55 $header = $message->header;
56
57 if ($message->rfc822_header) {
58 $subject = $message->rfc822_header->subject;
59 $charset = $header->content_type->properties['charset'];
60 } else {
61 $header = $message->header;
62 $charset = $header->getParameter('charset');
63 }
64 $type0 = $header->type0;
65 $type1 = $header->type1;
66 $encoding = strtolower($header->encoding);
ff9d4297 67} else {
6914aa18 68 /* raw message */
69 $type0 = 'message';
70 $type1 = 'rfc822';
71 $encoding = "US-ASCII";
ff9d4297 72}
97d7da3b 73
1e606225 74/*
65c3ec94 75 * lets redefine message as this particular entity that we wish to display.
76 * it should hold only the header for this entity. We need to fetch the body
77 * yet before we can display anything.
78 */
65c3ec94 79
65c3ec94 80if (isset($override_type0)) {
81 $type0 = $override_type0;
82}
83if (isset($override_type1)) {
84 $type1 = $override_type1;
85}
ff9d4297 86$filename = '';
87if (is_object($message->header->disposition)) {
88 $filename = decodeHeader($header->disposition->getProperty('filename'));
89 if (!$filename) {
90 $filename = decodeHeader($header->disposition->getProperty('name'));
91 }
6914aa18 92 if (!$filename) {
93 $filename = decodeHeader($header->getParameter('name'));
94 }
65c3ec94 95}
65c3ec94 96if (strlen($filename) < 1) {
97 if ($type1 == 'plain' && $type0 == 'text') {
98 $suffix = 'txt';
ff9d4297 99 $filename = $subject . '.txt';
65c3ec94 100 } else if ($type1 == 'richtext' && $type0 == 'text') {
101 $suffix = 'rtf';
ff9d4297 102 $filename = $subject . '.rtf';
65c3ec94 103 } else if ($type1 == 'postscript' && $type0 == 'application') {
104 $suffix = 'ps';
ff9d4297 105 $filename = $subject . '.ps';
97d7da3b 106 } else if ($type1 == 'rfc822' && $type0 == 'message') {
107 $suffix = 'eml';
ff9d4297 108 $filename = $subject . '.msg';
65c3ec94 109 } else {
110 $suffix = $type1;
111 }
112
631db37e 113 if (strlen($filename) < 1) {
9b761dbd 114 $filename = 'untitled'.strip_tags($ent_id).$suffix;
631db37e 115 } else {
ff9d4297 116 $filename = "$filename.$suffix";
631db37e 117 }
65c3ec94 118}
119
120/*
121 * Note:
122 * The following sections display the attachment in different
123 * ways depending on how they choose. The first way will download
124 * under any circumstance. This sets the Content-type to be
125 * applicatin/octet-stream, which should be interpreted by the
126 * browser as "download me".
127 * The second method (view) is used for images or other formats
128 * that should be able to be handled by the browser. It will
129 * most likely display the attachment inline inside the browser.
130 * And finally, the third one will be used by default. If it
131 * is displayable (text or html), it will load them up in a text
132 * viewer (built in to squirrelmail). Otherwise, it sets the
133 * content-type as application/octet-stream
134 */
88d916ee 135if (isset($absolute_dl) && $absolute_dl) {
5c553e34 136 DumpHeaders($type0, $type1, $filename, 1);
65c3ec94 137} else {
5c553e34 138 DumpHeaders($type0, $type1, $filename, 0);
65c3ec94 139}
38bca81c 140/* be aware that any warning caused by download.php will corrupt the
141 * attachment in case of ERROR reporting = E_ALL and the output is the screen */
ff9d4297 142mime_print_body_lines ($imapConnection, $passed_id, $ent_id, $encoding);
65c3ec94 143
65c3ec94 144/*
145 * This function is verified to work with Netscape and the *very latest*
146 * version of IE. I don't know if it works with Opera, but it should now.
147 */
148function DumpHeaders($type0, $type1, $filename, $force) {
0b97a708 149 global $_SERVER, $languages, $squirrelmail_language;
88d916ee 150 $isIE = $isIE6 = 0;
97d7da3b 151
0b97a708 152 $HTTP_USER_AGENT = $_SERVER['HTTP_USER_AGENT'];
153
65c3ec94 154 if (strstr($HTTP_USER_AGENT, 'compatible; MSIE ') !== false &&
155 strstr($HTTP_USER_AGENT, 'Opera') === false) {
36294f1a 156 $isIE = 1;
65c3ec94 157 }
158
97d7da3b 159 if (strstr($HTTP_USER_AGENT, 'compatible; MSIE 6') !== false &&
160 strstr($HTTP_USER_AGENT, 'Opera') === false) {
161 $isIE6 = 1;
162 }
163
7dae3923 164 if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
165 function_exists($languages[$squirrelmail_language]['XTRA_CODE'])) {
6fbd125b 166 $filename =
167 $languages[$squirrelmail_language]['XTRA_CODE']('downloadfilename', $filename, $HTTP_USER_AGENT);
83be314a 168 } else {
7dae3923 169 $filename = ereg_replace('[^-a-zA-Z0-9\.]', '_', $filename);
83be314a 170 }
65c3ec94 171
172 // A Pox on Microsoft and it's Office!
88d916ee 173 if (!$force) {
65c3ec94 174 // Try to show in browser window
175 header("Content-Disposition: inline; filename=\"$filename\"");
176 header("Content-Type: $type0/$type1; name=\"$filename\"");
177 } else {
178 // Try to pop up the "save as" box
179 // IE makes this hard. It pops up 2 save boxes, or none.
180 // http://support.microsoft.com/support/kb/articles/Q238/5/88.ASP
181 // But, accordint to Microsoft, it is "RFC compliant but doesn't
182 // take into account some deviations that allowed within the
183 // specification." Doesn't that mean RFC non-compliant?
184 // http://support.microsoft.com/support/kb/articles/Q258/4/52.ASP
185 //
186 // The best thing you can do for IE is to upgrade to the latest
187 // version
88d916ee 188 if ($isIE && !$isIE6) {
65c3ec94 189 // http://support.microsoft.com/support/kb/articles/Q182/3/15.asp
190 // Do not have quotes around filename, but that applied to
191 // "attachment"... does it apply to inline too?
192 //
193 // This combination seems to work mostly. IE 5.5 SP 1 has
194 // known issues (see the Microsoft Knowledge Base)
195 header("Content-Disposition: inline; filename=$filename");
65c3ec94 196 // This works for most types, but doesn't work with Word files
197 header("Content-Type: application/download; name=\"$filename\"");
198
199 // These are spares, just in case. :-)
200 //header("Content-Type: $type0/$type1; name=\"$filename\"");
201 //header("Content-Type: application/x-msdownload; name=\"$filename\"");
202 //header("Content-Type: application/octet-stream; name=\"$filename\"");
203 } else {
204 header("Content-Disposition: attachment; filename=\"$filename\"");
205 // application/octet-stream forces download for Netscape
206 header("Content-Type: application/octet-stream; name=\"$filename\"");
207 }
208 }
209}
631db37e 210?>