Add list_writable_backends() function back for plugins.
[squirrelmail.git] / src / download.php
CommitLineData
59177427 1<?php
895905c0 2
35586184 3/**
4 * download.php
5 *
35586184 6 * Handles attachment downloads to the users computer.
7 * Also allows displaying of attachments when possible.
8 *
47ccfad4 9 * @copyright &copy; 1999-2006 The SquirrelMail Project Team
4b4abf93 10 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
30967a1e 11 * @version $Id$
2b646597 12 * @package squirrelmail
35586184 13 */
14
30967a1e 15/**
202bcbcc 16 * Include the SquirrelMail initialization file.
30967a1e 17 */
202bcbcc 18require('../include/init.php');
86725763 19
20/* SquirrelMail required files. */
202bcbcc 21require(SM_PATH . 'functions/imap_general.php');
22require(SM_PATH . 'functions/mailbox_display.php');
23require(SM_PATH . 'functions/mime.php');
6b96544a 24
65c3ec94 25header('Pragma: ');
26header('Cache-Control: cache');
27
0b97a708 28/* globals */
324ac3c5 29sqgetGlobalVar('mailbox_cache',$mailbox_cache,SQ_SESSION);
1e12d1ff 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) ) {
324ac3c5 35 $passed_id = (int) $temp;
da2415c1 36}
91c27aee 37if (!sqgetGlobalVar('account', $account, SQ_GET) ) {
38 $account = 0;
39}
1075eaf1 40
fa7ba04e 41global $default_charset;
42set_my_charset();
43
0b97a708 44/* end globals */
97d7da3b 45
906f7e9f 46$imapConnection = sqimap_login($username, false, $imapServerAddress, $imapPort, 0);
91c27aee 47$aMailbox = sqm_api_mailbox_select($imapConnection, $account, $mailbox,array(),array());
97d7da3b 48
324ac3c5 49if (isset($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) &&
50 is_object($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) ) {
51 $message = $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'];
52} else {
53 $message = sqimap_get_message($imapConnection, $passed_id, $mailbox);
54 $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'] = $message;
5a1c48cd 55}
324ac3c5 56
ff9d4297 57$subject = $message->rfc822_header->subject;
6914aa18 58if ($ent_id) {
5813f2b7 59 // replace message with message part, if message part is requested.
60 $message = $message->getEntity($ent_id);
6914aa18 61 $header = $message->header;
da2415c1 62
6914aa18 63 if ($message->rfc822_header) {
64 $subject = $message->rfc822_header->subject;
6914aa18 65 } else {
66 $header = $message->header;
6914aa18 67 }
68 $type0 = $header->type0;
69 $type1 = $header->type1;
70 $encoding = strtolower($header->encoding);
ff9d4297 71} else {
6914aa18 72 /* raw message */
73 $type0 = 'message';
74 $type1 = 'rfc822';
bc5ff7c9 75 $encoding = 'US-ASCII';
5d39ca4d 76 $header = $message->header;
ff9d4297 77}
97d7da3b 78
1e606225 79/*
65c3ec94 80 * lets redefine message as this particular entity that we wish to display.
81 * it should hold only the header for this entity. We need to fetch the body
82 * yet before we can display anything.
83 */
65c3ec94 84
65c3ec94 85if (isset($override_type0)) {
86 $type0 = $override_type0;
87}
88if (isset($override_type1)) {
89 $type1 = $override_type1;
90}
ff9d4297 91$filename = '';
92if (is_object($message->header->disposition)) {
a91189d6 93 $filename = $header->disposition->getProperty('filename');
ff9d4297 94 if (!$filename) {
708ea172 95 $filename = $header->disposition->getProperty('name');
ff9d4297 96 }
6914aa18 97 if (!$filename) {
a91189d6 98 $filename = $header->getParameter('name');
da2415c1 99 }
cf22004d 100} else {
5d39ca4d 101 $filename = $header->getParameter('name');
65c3ec94 102}
bc5ff7c9 103
765470db 104$filename = decodeHeader($filename,true,false);
fa7ba04e 105$filename = charset_encode($filename,$default_charset,false);
106
107// If name is not set, use subject of email
65c3ec94 108if (strlen($filename) < 1) {
fa7ba04e 109 $filename = decodeHeader($subject, true, true);
110 $filename = charset_encode($filename,$default_charset,false);
89c7fc5a 111 if ($type1 == 'plain' && $type0 == 'text')
65c3ec94 112 $suffix = 'txt';
89c7fc5a 113 else if ($type1 == 'richtext' && $type0 == 'text')
65c3ec94 114 $suffix = 'rtf';
89c7fc5a 115 else if ($type1 == 'postscript' && $type0 == 'application')
65c3ec94 116 $suffix = 'ps';
89c7fc5a 117 else if ($type1 == 'rfc822' && $type0 == 'message')
118 $suffix = 'msg';
8e73da2b 119 else
65c3ec94 120 $suffix = $type1;
8e73da2b 121
122 if ($filename == '')
123 $filename = 'untitled' . strip_tags($ent_id);
89c7fc5a 124 $filename = $filename . '.' . $suffix;
65c3ec94 125}
126
e4baf0ee 127/**
128 * Update mailbox_cache and close session in order to prevent
129 * script locking on larger downloads. SendDownloadHeaders() and
130 * mime_print_body_lines() don't write information to session.
131 * mime_print_body_lines() call duration depends on size of
132 * attachment and script can cause interface lockups, if session
133 * is not closed.
134 */
135$mailbox_cache[$aMailbox['NAME']] = $aMailbox;
136sqsession_register($mailbox_cache,'mailbox_cache');
137session_write_close();
138
65c3ec94 139/*
140 * Note:
141 * The following sections display the attachment in different
142 * ways depending on how they choose. The first way will download
143 * under any circumstance. This sets the Content-type to be
144 * applicatin/octet-stream, which should be interpreted by the
145 * browser as "download me".
146 * The second method (view) is used for images or other formats
147 * that should be able to be handled by the browser. It will
148 * most likely display the attachment inline inside the browser.
149 * And finally, the third one will be used by default. If it
150 * is displayable (text or html), it will load them up in a text
598294a7 151 * viewer (built in to SquirrelMail). Otherwise, it sets the
65c3ec94 152 * content-type as application/octet-stream
153 */
88d916ee 154if (isset($absolute_dl) && $absolute_dl) {
da2415c1 155 SendDownloadHeaders($type0, $type1, $filename, 1);
65c3ec94 156} else {
da2415c1 157 SendDownloadHeaders($type0, $type1, $filename, 0);
65c3ec94 158}
38bca81c 159/* be aware that any warning caused by download.php will corrupt the
160 * attachment in case of ERROR reporting = E_ALL and the output is the screen */
ff9d4297 161mime_print_body_lines ($imapConnection, $passed_id, $ent_id, $encoding);
a2b193bc 162