[squirrelmail.git] / src / download.php

<?php

/**
 * download.php
 *
 * Copyright (c) 1999-2002 The SquirrelMail Project Team
 * Licensed under the GNU GPL. For full terms see the file COPYING.
 *
 * Handles attachment downloads to the users computer.
 * Also allows displaying of attachments when possible.
 *
 * $Id$
 */

require_once('../src/validate.php');
require_once('../functions/imap.php');
require_once('../functions/mime.php');
require_once('../functions/date.php');

header('Pragma: ');
header('Cache-Control: cache');

function viewText($color, $body, $id, $entid, $mailbox, $type1, $wrap_at) {
    global $where, $what, $charset;
    global $startMessage;

    displayPageHeader($color, 'None');

    echo "<BR><TABLE WIDTH=\"100%\" BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">".
         "<B><CENTER>".
         _("Viewing a text attachment") . " - ";
    if ($where && $what) {
        // from a search
        echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&where=".urlencode($where)."&what=".urlencode($what)."\">". _("View message") . "</a>";
    } else {
        echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&startMessage=$startMessage&show_more=0\">". _("View message") . "</a>";
    }

    $urlmailbox = urlencode($mailbox);
    echo "</b></td><tr><tr><td><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$entid&mailbox=$urlmailbox\">".
         _("Download this as a file").
         "</A></CENTER><BR>".
         "</CENTER></B>".
         "</TD></TR></TABLE>".
         "<TABLE WIDTH=\"98%\" BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">".
         "<TR><TD BGCOLOR=\"$color[4]\"><TT>";

    if ($type1 == 'html') {
        $body = MagicHTML( $body, $id );
    } else {
        translateText($body, $wrap_at, $charset);
    }

    flush();
    echo $body .
         "</TT></TD></TR></TABLE>";
}

$imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0);
sqimap_mailbox_select($imapConnection, $mailbox);

/*
 * $message contains all information about the message
 * including header and body
 */
$message = sqimap_get_message($imapConnection, $passed_id, $mailbox);
$top_header = $message->header;

/*
 * lets redefine message as this particular entity that we wish to display.
 * it should hold only the header for this entity.  We need to fetch the body
 * yet before we can display anything.
 */
$message = getEntity($message, $passed_ent_id);

$header = $message->header;

$charset = $header->charset;
$type0 = $header->type0;
$type1 = $header->type1;
if (isset($override_type0)) {
    $type0 = $override_type0;
}
if (isset($override_type1)) {
    $type1 = $override_type1;
}
$filename = decodeHeader($header->filename);
if (!$filename) {
    $filename = decodeHeader($header->name);
}

if (strlen($filename) < 1) {
    if ($type1 == 'plain' && $type0 == 'text') {
        $suffix = 'txt';
    } else if ($type1 == 'richtext' && $type0 == 'text') {
        $suffix = 'rtf';
    } else if ($type1 == 'postscript' && $type0 == 'application') {
        $suffix = 'ps';
    } else if ($type1 == 'message' && $type0 == 'rfc822') {
        $suffix = 'msg';
    } else {
        $suffix = $type1;
    }

    $filename = "untitled$passed_ent_id.$suffix";
}

/*
 * Note:
 *    The following sections display the attachment in different
 *    ways depending on how they choose.  The first way will download
 *    under any circumstance.  This sets the Content-type to be
 *    applicatin/octet-stream, which should be interpreted by the
 *    browser as "download me".
 *      The second method (view) is used for images or other formats
 *    that should be able to be handled by the browser.  It will
 *    most likely display the attachment inline inside the browser.
 *      And finally, the third one will be used by default.  If it
 *    is displayable (text or html), it will load them up in a text
 *    viewer (built in to squirrelmail).  Otherwise, it sets the
 *    content-type as application/octet-stream
 */
if (isset($absolute_dl) && $absolute_dl == 'true') {
    switch($type0) {
    case 'text':
        DumpHeaders($type0, $type1, $filename, 1);
        $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
        $body = decodeBody($body, $header->encoding);
        if ($type1 == 'plain' && isset($showHeaders)) {
            echo _("Subject") . ": " . decodeHeader($top_header->subject) . "\n".
                 "   " . _("From") . ": " . decodeHeader($top_header->from) . "\n".
                 "     " . _("To") . ": " . decodeHeader(getLineOfAddrs($top_header->to)) . "\n".
                 "   " . _("Date") . ": " . getLongDateString($top_header->date) . "\n\n";
        } elseif ($type1 == 'html' && isset($showHeaders)) {
            echo '<table><tr><th align=right>' . _("Subject").
                 ':</th><td>' . decodeHeader($top_header->subject).
                 "</td></tr>\n<tr><th align=right>" . _("From").
                 ':</th><td>' . decodeHeader($top_header->from).
                 "</td></tr>\n<tr><th align=right>" . _("To").
                 ':</th><td>' . decodeHeader(getLineOfAddrs($top_header->to)).
                 "</td></tr>\n<tr><th align=right>" . _("Date").
                 ':</th><td>' . getLongDateString($top_header->date).
                 "</td></tr>\n</table>\n<hr>\n";
        }
        echo $body;
        break;
    default:
        DumpHeaders($type0, $type1, $filename, 1);
        mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding);
        break;
    }
} else {
    switch ($type0) {
    case 'text':
        if ($type1 == 'plain' || $type1 == 'html') {
            $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
            $body = decodeBody($body, $header->encoding);
            viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at);
        } else {
            DumpHeaders($type0, $type1, $filename, 0);
            $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
            $body = decodeBody($body, $header->encoding);
            echo $body;
        }
        break;
    case 'message':
        $body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
        $body = decodeBody($body, $header->encoding);
        viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at);
        break;
    default:
        DumpHeaders($type0, $type1, $filename, 0);
        mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding);
        break;
    }
}


/*
 * This function is verified to work with Netscape and the *very latest*
 * version of IE.  I don't know if it works with Opera, but it should now.
 */
function DumpHeaders($type0, $type1, $filename, $force) {
    global $HTTP_USER_AGENT;

    $isIE = 0;
    if (strstr($HTTP_USER_AGENT, 'compatible; MSIE ') !== false &&
        strstr($HTTP_USER_AGENT, 'Opera') === false) {
        $isIE = 1;
    }

    $filename = ereg_replace('[^-a-zA-Z0-9\.]', '_', $filename);

    // A Pox on Microsoft and it's Office!
    if (! $force) {
        // Try to show in browser window
        header("Content-Disposition: inline; filename=\"$filename\"");
        header("Content-Type: $type0/$type1; name=\"$filename\"");
    } else {
        // Try to pop up the "save as" box
        // IE makes this hard.  It pops up 2 save boxes, or none.
        // http://support.microsoft.com/support/kb/articles/Q238/5/88.ASP
        // But, accordint to Microsoft, it is "RFC compliant but doesn't
        // take into account some deviations that allowed within the
        // specification."  Doesn't that mean RFC non-compliant?
        // http://support.microsoft.com/support/kb/articles/Q258/4/52.ASP
        //
        // The best thing you can do for IE is to upgrade to the latest
        // version
        if ($isIE) {
            // http://support.microsoft.com/support/kb/articles/Q182/3/15.asp
            // Do not have quotes around filename, but that applied to
            // "attachment"... does it apply to inline too?
            //
            // This combination seems to work mostly.  IE 5.5 SP 1 has
            // known issues (see the Microsoft Knowledge Base)
            header("Content-Disposition: inline; filename=$filename");

            // This works for most types, but doesn't work with Word files
            header("Content-Type: application/download; name=\"$filename\"");

            // These are spares, just in case.  :-)
            //header("Content-Type: $type0/$type1; name=\"$filename\"");
            //header("Content-Type: application/x-msdownload; name=\"$filename\"");
            //header("Content-Type: application/octet-stream; name=\"$filename\"");
        } else {
            header("Content-Disposition: attachment; filename=\"$filename\"");
            // application/octet-stream forces download for Netscape
            header("Content-Type: application/octet-stream; name=\"$filename\"");
        }
    }
}
?>
Commit	Line	Data
59177427	1	<?php
895905c0	2
35586184	3	/**
	4	* download.php
	5	*
15e6162e	6	* Copyright (c) 1999-2002 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
35586184	15	require_once('../src/validate.php');
	16	require_once('../functions/imap.php');
	17	require_once('../functions/mime.php');
	18	require_once('../functions/date.php');
6b96544a	19
65c3ec94	20	header('Pragma: ');
	21	header('Cache-Control: cache');
	22
	23	function viewText($color, $body, $id, $entid, $mailbox, $type1, $wrap_at) {
	24	global $where, $what, $charset;
	25	global $startMessage;
	26
	27	displayPageHeader($color, 'None');
	28
	29	echo "<BR><TABLE WIDTH=\"100%\" BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">".
	30	"<B><CENTER>".
	31	_("Viewing a text attachment") . " - ";
	32	if ($where && $what) {
	33	// from a search
	34	echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&where=".urlencode($where)."&what=".urlencode($what)."\">". _("View message") . "</a>";
	35	} else {
	36	echo "<a href=\"read_body.php?mailbox=".urlencode($mailbox)."&passed_id=$id&startMessage=$startMessage&show_more=0\">". _("View message") . "</a>";
	37	}
	38
	39	$urlmailbox = urlencode($mailbox);
	40	echo "</b></td><tr><tr><td><CENTER><A HREF=\"../src/download.php?absolute_dl=true&passed_id=$id&passed_ent_id=$entid&mailbox=$urlmailbox\">".
	41	_("Download this as a file").
	42	"</A></CENTER><BR>".
	43	"</CENTER></B>".
	44	"</TD></TR></TABLE>".
	45	"<TABLE WIDTH=\"98%\" BORDER=0 CELLSPACING=0 CELLPADDING=2 ALIGN=CENTER><TR><TD BGCOLOR=\"$color[0]\">".
	46	"<TR><TD BGCOLOR=\"$color[4]\"><TT>";
	47
	48	if ($type1 == 'html') {
	49	$body = MagicHTML( $body, $id );
	50	} else {
	51	translateText($body, $wrap_at, $charset);
	52	}
	53
	54	flush();
	55	echo $body .
	56	"</TT></TD></TR></TABLE>";
	57	}
	58
	59	$imapConnection = sqimap_login($username, $key, $imapServerAddress, $imapPort, 0);
	60	sqimap_mailbox_select($imapConnection, $mailbox);
	61
	62	/*
	63	* $message contains all information about the message
	64	* including header and body
	65	*/
	66	$message = sqimap_get_message($imapConnection, $passed_id, $mailbox);
	67	$top_header = $message->header;
	68
	69	/*
	70	* lets redefine message as this particular entity that we wish to display.
	71	* it should hold only the header for this entity. We need to fetch the body
	72	* yet before we can display anything.
	73	*/
	74	$message = getEntity($message, $passed_ent_id);
	75
	76	$header = $message->header;
	77
	78	$charset = $header->charset;
	79	$type0 = $header->type0;
	80	$type1 = $header->type1;
	81	if (isset($override_type0)) {
	82	$type0 = $override_type0;
	83	}
84	if (isset($override_type1)) {
85	$type1 = $override_type1;
86	}
87	$filename = decodeHeader($header->filename);
88	if (!$filename) {
89	$filename = decodeHeader($header->name);
90	}
91
92	if (strlen($filename) < 1) {
93	if ($type1 == 'plain' && $type0 == 'text') {
94	$suffix = 'txt';
95	} else if ($type1 == 'richtext' && $type0 == 'text') {
96	$suffix = 'rtf';
97	} else if ($type1 == 'postscript' && $type0 == 'application') {
98	$suffix = 'ps';
99	} else if ($type1 == 'message' && $type0 == 'rfc822') {
100	$suffix = 'msg';
101	} else {
102	$suffix = $type1;
103	}
104
105	$filename = "untitled$passed_ent_id.$suffix";
106	}
107
108	/*
109	* Note:
110	* The following sections display the attachment in different
111	* ways depending on how they choose. The first way will download
112	* under any circumstance. This sets the Content-type to be
113	* applicatin/octet-stream, which should be interpreted by the
114	* browser as "download me".
115	* The second method (view) is used for images or other formats
116	* that should be able to be handled by the browser. It will
117	* most likely display the attachment inline inside the browser.
118	* And finally, the third one will be used by default. If it
119	* is displayable (text or html), it will load them up in a text
120	* viewer (built in to squirrelmail). Otherwise, it sets the
121	* content-type as application/octet-stream
122	*/
123	if (isset($absolute_dl) && $absolute_dl == 'true') {
124	switch($type0) {
125	case 'text':
126	DumpHeaders($type0, $type1, $filename, 1);
127	$body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
128	$body = decodeBody($body, $header->encoding);
129	if ($type1 == 'plain' && isset($showHeaders)) {
130	echo _("Subject") . ": " . decodeHeader($top_header->subject) . "\n".
131	" " . _("From") . ": " . decodeHeader($top_header->from) . "\n".
132	" " . _("To") . ": " . decodeHeader(getLineOfAddrs($top_header->to)) . "\n".
133	" " . _("Date") . ": " . getLongDateString($top_header->date) . "\n\n";
134	} elseif ($type1 == 'html' && isset($showHeaders)) {
135	echo '<table><tr><th align=right>' . _("Subject").
136	':</th><td>' . decodeHeader($top_header->subject).
137	"</td></tr>\n<tr><th align=right>" . _("From").
138	':</th><td>' . decodeHeader($top_header->from).
139	"</td></tr>\n<tr><th align=right>" . _("To").
140	':</th><td>' . decodeHeader(getLineOfAddrs($top_header->to)).
141	"</td></tr>\n<tr><th align=right>" . _("Date").
142	':</th><td>' . getLongDateString($top_header->date).
143	"</td></tr>\n</table>\n<hr>\n";
144	}
145	echo $body;
146	break;
147	default:
148	DumpHeaders($type0, $type1, $filename, 1);
149	mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding);
150	break;
151	}
152	} else {
153	switch ($type0) {
154	case 'text':
155	if ($type1 == 'plain' \|\| $type1 == 'html') {
beb9e459	156	$body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
8beafbbc	157	$body = decodeBody($body, $header->encoding);
65c3ec94	158	viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at);
	159	} else {
	160	DumpHeaders($type0, $type1, $filename, 0);
beb9e459	161	$body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
8beafbbc	162	$body = decodeBody($body, $header->encoding);
65c3ec94	163	echo $body;
	164	}
	165	break;
	166	case 'message':
	167	$body = mime_fetch_body($imapConnection, $passed_id, $passed_ent_id);
	168	$body = decodeBody($body, $header->encoding);
	169	viewText($color, $body, $passed_id, $passed_ent_id, $mailbox, $type1, $wrap_at);
	170	break;
	171	default:
	172	DumpHeaders($type0, $type1, $filename, 0);
	173	mime_print_body_lines ($imapConnection, $passed_id, $passed_ent_id, $header->encoding);
	174	break;
	175	}
	176	}
	177
	178
	179	/*
	180	* This function is verified to work with Netscape and the very latest
	181	* version of IE. I don't know if it works with Opera, but it should now.
	182	*/
	183	function DumpHeaders($type0, $type1, $filename, $force) {
	184	global $HTTP_USER_AGENT;
	185
	186	$isIE = 0;
	187	if (strstr($HTTP_USER_AGENT, 'compatible; MSIE ') !== false &&
	188	strstr($HTTP_USER_AGENT, 'Opera') === false) {
36294f1a	189	$isIE = 1;
65c3ec94	190	}
	191
	192	$filename = ereg_replace('[^-a-zA-Z0-9\.]', '_', $filename);
	193
	194	// A Pox on Microsoft and it's Office!
	195	if (! $force) {
	196	// Try to show in browser window
	197	header("Content-Disposition: inline; filename=\"$filename\"");
	198	header("Content-Type: $type0/$type1; name=\"$filename\"");
	199	} else {
	200	// Try to pop up the "save as" box
	201	// IE makes this hard. It pops up 2 save boxes, or none.
	202	// http://support.microsoft.com/support/kb/articles/Q238/5/88.ASP
	203	// But, accordint to Microsoft, it is "RFC compliant but doesn't
	204	// take into account some deviations that allowed within the
	205	// specification." Doesn't that mean RFC non-compliant?
	206	// http://support.microsoft.com/support/kb/articles/Q258/4/52.ASP
	207	//
	208	// The best thing you can do for IE is to upgrade to the latest
	209	// version
	210	if ($isIE) {
	211	// http://support.microsoft.com/support/kb/articles/Q182/3/15.asp
	212	// Do not have quotes around filename, but that applied to
	213	// "attachment"... does it apply to inline too?
	214	//
	215	// This combination seems to work mostly. IE 5.5 SP 1 has
	216	// known issues (see the Microsoft Knowledge Base)
	217	header("Content-Disposition: inline; filename=$filename");
	218
	219	// This works for most types, but doesn't work with Word files
	220	header("Content-Type: application/download; name=\"$filename\"");
	221
	222	// These are spares, just in case. :-)
	223	//header("Content-Type: $type0/$type1; name=\"$filename\"");
	224	//header("Content-Type: application/x-msdownload; name=\"$filename\"");
	225	//header("Content-Type: application/octet-stream; name=\"$filename\"");
	226	} else {
	227	header("Content-Disposition: attachment; filename=\"$filename\"");
	228	// application/octet-stream forces download for Netscape
	229	header("Content-Type: application/octet-stream; name=\"$filename\"");
	230	}
	231	}
	232	}
35586184	233	?>