6 * Handles attachment downloads to the users computer.
7 * Also allows displaying of attachments when possible.
9 * @copyright © 1999-2007 The SquirrelMail Project Team
10 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
12 * @package squirrelmail
16 * Include the SquirrelMail initialization file.
18 require('../include/init.php');
20 /* SquirrelMail required files. */
21 require(SM_PATH
. 'functions/imap_general.php');
22 require(SM_PATH
. 'functions/mailbox_display.php');
23 require(SM_PATH
. 'functions/mime.php');
26 * If a message is viewed from the search page, $aMailbox[$passed_id]['MESSAGE_OBJECT']
27 * is not initialized, which makes this page error out on line 65 with an
28 * undefined function. We need to include some additional files in case the
29 * object has not been initialized.
31 * TODO: Determine why the object in question is not initialized when coming from
32 * a search page and correct. Once that is done, we can remove these
35 require(SM_PATH
. 'functions/imap_messages.php');
36 require(SM_PATH
. 'functions/date.php');
39 header('Cache-Control: cache');
42 sqgetGlobalVar('mailbox_cache',$mailbox_cache,SQ_SESSION
);
43 sqgetGlobalVar('messages', $messages, SQ_SESSION
);
44 sqgetGlobalVar('mailbox', $mailbox, SQ_GET
);
45 sqgetGlobalVar('ent_id', $ent_id, SQ_GET
);
46 sqgetGlobalVar('absolute_dl',$absolute_dl, SQ_GET
);
47 if ( sqgetGlobalVar('passed_id', $temp, SQ_GET
) ) {
48 $passed_id = (int) $temp;
50 if (!sqgetGlobalVar('account', $account, SQ_GET
) ) {
54 global $default_charset;
59 $imapConnection = sqimap_login($username, false, $imapServerAddress, $imapPort, 0);
60 $aMailbox = sqm_api_mailbox_select($imapConnection, $account, $mailbox,array(),array());
62 if (isset($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) &&
63 is_object($aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT']) ) {
64 $message = $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'];
66 $message = sqimap_get_message($imapConnection, $passed_id, $mailbox);
67 $aMailbox['MSG_HEADERS'][$passed_id]['MESSAGE_OBJECT'] = $message;
70 $subject = $message->rfc822_header
->subject
;
72 // replace message with message part, if message part is requested.
73 $message = $message->getEntity($ent_id);
74 $header = $message->header
;
76 if ($message->rfc822_header
) {
77 $subject = $message->rfc822_header
->subject
;
79 $header = $message->header
;
81 $type0 = $header->type0
;
82 $type1 = $header->type1
;
83 $encoding = strtolower($header->encoding
);
88 $encoding = 'US-ASCII';
89 $header = $message->header
;
93 * lets redefine message as this particular entity that we wish to display.
94 * it should hold only the header for this entity. We need to fetch the body
95 * yet before we can display anything.
98 if (isset($override_type0)) {
99 $type0 = $override_type0;
101 if (isset($override_type1)) {
102 $type1 = $override_type1;
105 if (is_object($message->header
->disposition
)) {
106 $filename = $header->disposition
->getProperty('filename');
108 $filename = $header->disposition
->getProperty('name');
111 $filename = $header->getParameter('name');
114 $filename = $header->getParameter('name');
117 $filename = decodeHeader($filename,true,false);
118 $filename = charset_encode($filename,$default_charset,false);
120 // If name is not set, use subject of email
121 if (strlen($filename) < 1) {
122 $filename = decodeHeader($subject, true, true);
123 $filename = charset_encode($filename,$default_charset,false);
124 if ($type1 == 'plain' && $type0 == 'text')
126 else if ($type1 == 'richtext' && $type0 == 'text')
128 else if ($type1 == 'postscript' && $type0 == 'application')
130 else if ($type1 == 'rfc822' && $type0 == 'message')
136 $filename = 'untitled' . strip_tags($ent_id);
137 $filename = $filename . '.' . $suffix;
141 * Update mailbox_cache and close session in order to prevent
142 * script locking on larger downloads. SendDownloadHeaders() and
143 * mime_print_body_lines() don't write information to session.
144 * mime_print_body_lines() call duration depends on size of
145 * attachment and script can cause interface lockups, if session
148 $mailbox_cache[$aMailbox['NAME']] = $aMailbox;
149 sqsession_register($mailbox_cache,'mailbox_cache');
150 session_write_close();
154 * The following sections display the attachment in different
155 * ways depending on how they choose. The first way will download
156 * under any circumstance. This sets the Content-type to be
157 * applicatin/octet-stream, which should be interpreted by the
158 * browser as "download me".
159 * The second method (view) is used for images or other formats
160 * that should be able to be handled by the browser. It will
161 * most likely display the attachment inline inside the browser.
162 * And finally, the third one will be used by default. If it
163 * is displayable (text or html), it will load them up in a text
164 * viewer (built in to SquirrelMail). Otherwise, it sets the
165 * content-type as application/octet-stream
167 if (isset($absolute_dl) && $absolute_dl) {
168 SendDownloadHeaders($type0, $type1, $filename, 1);
170 SendDownloadHeaders($type0, $type1, $filename, 0);
172 /* be aware that any warning caused by download.php will corrupt the
173 * attachment in case of ERROR reporting = E_ALL and the output is the screen */
174 mime_print_body_lines ($imapConnection, $passed_id, $ent_id, $encoding);