discuz! 5.0.0 Forum Program to add a section of JS code, let members click to download the attachment before the Automatic pop-up prompt window _php tips

You need to modify the attachment.php file in the root directory
In $attachexists = $ispaid = FALSE;
if (!empty ($checktwo)) {
Add before the end of the?>
} else {
echo "<script>alert (' write the content you want to hint ') </script>";
echo "<meta http-equiv=\" refresh\ "content=\" 0; url= $PHP _self?checktwo=1&aid= $aid \ ">";
}
I set up discuz! on this machine. 5.0.1 Debugging passed the
The complete code is as follows:
<?php
/*
[discuz!] (C) 2001-2006 Comsenz Inc.
This isn't a freeware, use is subject to license terms
$RCSfile: Attachment.php,v $
$Revision: 1.13 $
$Date: 2006/08/11 06:51:07 $
*/
Require_once './include/common.inc.php ';
$discuz _action = 14;
if ($attachrefcheck && $_server[' http_referer '] && preg_replace ("/https?:\ /\/([^\/]+). */i "," \\1 ", $_server[' Http_referer '])!= $_server[' Http_host ']) {
Header ("Location: {$boardurl}images/common/invalidreferer.gif");
ShowMessage (' Attachment_referer_invalid ', NULL, ' halted ');
}
/*
$query = $db->query ("Select A.*, T.fid, P.authorid from {$tablepre}attachments A, {$tablepre}threads t, {$tablepre}pos TS P
WHERE a.aid= ' $aid ' and T.tid=a.tid and P.pid=a.pid and t.displayorder>= ' 0 ' and p.invisible= ' 0 ' ");
$attach = $db->fetch_array ($query);
*/
Periodscheck (' attachbanperiods ');
$attachexists = $ispaid = FALSE;
if (!empty ($checktwo)) {
if (!empty ($aid)) {
$query = $db->query ("select * from {$tablepre}attachments WHERE aid= ' $aid '");
if ($attach = $db->fetch_array ($query)) {
$query = $db->query ("Select Tid, FID, price, special from {$tablepre}threads WHERE tid= ' $attach [tid] ' and displayorder& gt;= ' 0 ');
$thread = $db->fetch_array ($query);
if ($thread [' FID ']) {
$query = $db->query ("Select Authorid from {$tablepre}posts WHERE pid= ' $attach [PID] ' and invisible= ' 0 '");
if ($db->num_rows ($query)) {
$attach [' authorid '] = $db->result ($query, 0);
$attachexists = TRUE;
}
}
}
}
if ($allowgetattach && ($attach [' readperm '] && $attach [' readperm '] > $readaccess) && $ Adminid <= 0 &&! ($discuz _uid && $discuz _uid = = $attach [' Authorid ']) {
ShowMessage (' attachment_forum_nopermission ', NULL, ' noperm ');
}
if (! $thread [' Special '] && $thread [' price '] > 0 && (! $discuz _uid | | ($discuz _uid && $discuz _uid!= $attach [' Authorid '] && $adminid <=0))) {
$query = $db->query ("Select uid from {$tablepre}paymentlog WHERE uid= ' $discuz _uid ' and tid= ' $attach [tid]");
if ($db->result ($query, 0)) {
$ispaid = TRUE;
} else {
ShowMessage (' Attachment_payto ', ' viewthread.php?tid= '. $attach [' Tid ']);
}
}
$filename = $attachdir. ' /'. $attach [' attachment '];
if (is_readable ($filename) && $attachexists) {
$query = $db->query ("Select F.viewperm, F.getattachperm, F.getattachcredits, A.allowgetattach from {$tablepre}" Forumfields F
Left JOIN {$tablepre}access A on a.uid= ' $discuz _uid ' and A.fid=f.fid
WHERE f.fid= ' $thread [FID] ');
$forum = $db->fetch_array ($query);
if (! $ispaid) {
if (! $forum [' Allowgetattach ']) {
if (! $forum [' getattachperm '] &&! $allowgetattach) {
ShowMessage (' group_nopermission ', NULL, ' noperm ');
} elseif ($forum [' getattachperm '] &&!forumperm ($forum [' getattachperm ']) | | ($forum [' viewperm '] &&!forumperm ($forum [' viewperm '])) {
ShowMessage (' attachment_forum_nopermission ', NULL, ' noperm ');
}
}
}
if (!) ( $isimage = Preg_match ("/^image\/.+/", $attach [' filetype '])) {
Checklowerlimit ($creditspolicy [' Getattach '],-1);
}
if (empty ($noupdate)) {
if ($delayviewcount = = 2 | | $delayviewcount = = 3) {
$logfile = './forumdata/cache/cache_attachviews.log ';
if (substr ($timestamp,-1) = = ' 0 ') {
Require_once discuz_root. '. /include/misc.func.php ';
Updateviews (' Attachments ', ' aid ', ' downloads ', $logfile);
}
if (@ $fp = fopen (discuz_root. $logfile, ' a ')) {
Fwrite ($fp, "$aid \ n");
Fclose ($FP);
} elseif ($adminid = = 1) {
ShowMessage (' View_log_invalid ');
}
} else {
$db->query ("UPDATE {$tablepre}attachments SET downloads=downloads+ ' 1 ' WHERE aid= ' $aid '", ' unbuffered ');
}
}
if (! $isimage) {
$forum [' getattachcredits '] = $forum [' Getattachcredits ']? Unserialize ($forum [' getattachcredits ']): Array ();
$getattachcredits = $forum [' Getattachcredits ']? $forum [' Getattachcredits ']: $creditspolicy [' Getattach '];
Updatecredits ($discuz _uid, $getattachcredits,-1);
}
$filesize = FileSize ($filename);
Ob_end_clean ();
Header (' cache-control:max-age=31536000 ');
Header (' Expires: '. Gmdate (' d, D M Y h:i:s ', $timestamp + 31536000). ' GMT ');
Header (' Content-encoding:none ');
$attach [' filename '] = (strtolower ($charset) = = ' Utf-8 ' && strexists ($_server[' http_user_agent '], ' msie '))? UrlEncode ($attach [' filename ']): $attach [' filename '];
if ($isimage &&!empty ($noupdate)) {
Header (' Content-disposition:inline filename= '. $attach [' filename ']);
} else {
Header (' Content-disposition:attachment filename= '. $attach [' filename ']);
}
Header (' Content-type: '. $attach [' filetype ']);
@ $fp = fopen ($filename, ' RB ');
@flock ($FP, 2);
$attachment = @fread ($fp, $filesize);
@fclose ($FP);
Echo $attachment;

} else {
ShowMessage (' attachment_nonexistence ');
}
} else {
echo "<script>alert (' $PHP _self ') </script>";
echo "<meta http-equiv=\" refresh\ "content=\" 0; url= $PHP _self?checktwo=1&aid= $aid \ ">";
}
?>