###############################################################################
# ModifyMessage.pl                                                            #
###############################################################################
# YaBB: Yet another Bulletin Board                                            #
# Open-Source Community Software for Webmasters                               #
# Version:        YaBB 2 RC 3                                                 #
# Released:       June 20, 2005                                               #
# Distributed by: http://www.yabbforum.com                                    #
# =========================================================================== #
# Copyright (c) 2000-2005 YaBB (www.yabbforum.com) - All Rights Reserved.     #
# Software by: The YaBB Development Team                                      #
#              with assistance from the YaBB community.                       #
# Sponsored by: Xnull Internet Media, Inc. - http://www.ximinc.com            #
#               Your source for web hosting, web design, and domains.         #
###############################################################################

$modifymessageplver = 'YaBB 2 RC 3 $Revision: 1.63 $';
if($action eq 'detailedversion') { return 1; }

if (!$post_txt_loaded){
	LoadLanguage("Post");
	$post_txt_loaded = 1;
}
LoadLanguage("FA");

sub ModifyMessage {
	my($mfn);
	if($iamguest) { &fatal_error($post_txt{'223'}); }

	if( $currentboard eq '' ) { &fatal_error($post_txt{'1'}); }

	my( $mnum, $msub, $mname, $memail, $mdate, $mreplies, $musername, $micon, $mstate, @messages, $curmessage, $msubject, $mattach, $mip, $mmessage, $mns, $mlm, $mlmb);
	$threadid = $INFO{'thread'};
	$postid =  $INFO{'message'};

	my($filetype_info, $filesize_info, $extensions);
	$extensions = join(" ", @ext);
	$filetype_info = $checkext == 1 ? qq~$fatxt{'2'} $extensions~ : qq~$fatxt{'2'} $fatxt{'4'}~;
	$filesize_info = $limit != 0 ? qq~$fatxt{'3'} $limit KB~ : qq~$fatxt{'3'} $fatxt{'5'}~;

	($mnum, $msub, $mname, $memail, $mdate, $mreplies, $musername, $micon, $mstate) = split(/\|/,$yyThreadLine);

	if( $mstate =~ /l/i ) {
		&fatal_error($post_txt{'90'});
	} else {
		if ($tlnomodflag) {
			unless ($iamadmin || $iamgmod || $iammod) {
				$tlnomodtimesecs = $tlnomodtime*3600*24;
				$tltime = $mdate + $tlnomodtimesecs;
				$tlcurrenttime = time + (3600*$timeoffset);
				if ( $tlcurrenttime > $tltime ) {
					&fatal_error( "$timelocktxt{'01'}$tlnomodtime$timelocktxt{'02'}" );
				}
			}
		}
	}
	if ($postid eq "Poll") {
		unless (-e "$datadir/$threadid.poll") {&fatal_error("$post_polltxt{'13'}");}

		fopen (FILE, "$datadir/$threadid.poll");
		@poll_data = <FILE>;
		fclose (FILE);
		chomp $poll_data[0];
		($poll_question, $poll_locked, $poll_uname, $poll_name, $poll_email, $poll_date, $guest_vote, $hide_results, $multi_choice, $poll_mod, $poll_modname, $poll_comment) = split(/\|/, $poll_data[0]);
		for(my $i = 0; $i < @poll_data; $i++) {
			chomp $poll_data[$i];
			($votes[$i], $options[$i]) = split(/\|/, $poll_data[$i]);
		}

		unless($poll_uname eq $username || $iammod || $iamadmin || $iamgmod) { &fatal_error("$post_polltxt{'13'}"); }

		$poll_comment =~ s~<br \/>~\n~g;
		$poll_comment =~ s~<br>~\n~g;
		$pollthread = 2;
		$settofield = "question";

	} else {

	fopen(FILE, "$datadir/$threadid.txt") || &fatal_error("$post_txt{'23'} $threadid.txt", 1);
	@messages = <FILE>;
	fclose(FILE);

	$curmessage = $messages[$postid];
	chomp $curmessage;
	($sub, $mname, $memail, $mdate, $musername, $micon, $mattach, $mip,  $message, $mns, $mlm, $mlmb, $mfn) = split(/\|/,$messages[$postid]);

	$messagedate = $mdate;
	$registrationdate = ${$uid.$username}{'regtime'};

	if(($registrationdate > $messagedate || $musername ne $username) && !($iammod || $iamadmin  || $iamgmod )) {
		&fatal_error($post_txt{'67'});
	}

	$lastmod = $mlm ? &timeformat($mlm) : '-';
	$nscheck = $mns ? ' checked' : '';

	$lastmod = qq~
<tr>
	<td valign="top" width="23%"><span class="text1"><b>$post_txt{'211'}:</b></span></td>
	<td><span class="text1">$lastmod</span></td>
</tr>
~;
	$icon = $micon;
	if($icon eq "xx") { $ic1 = " selected"; }
	elsif($icon eq "thumbup") { $ic2 = " selected"; }
	elsif($icon eq "thumbdown") { $ic3 = " selected"; }
	elsif($icon eq "exclamation") { $ic4 = " selected"; }
	elsif($icon eq "question") { $ic5 = " selected"; }
	elsif($icon eq "lamp") { $ic6 = " selected"; }
	elsif($icon eq "smiley") { $ic7 = " selected"; }
	elsif($icon eq "angry") { $ic8 = " selected"; }
	elsif($icon eq "cheesy") { $ic9 = " selected"; }
	elsif($icon eq "grin") { $ic10 = " selected"; }
	elsif($icon eq "sad") { $ic11 = " selected"; }
	elsif($icon eq "wink") { $ic12 = " selected"; }
	$isatt = $mfn;
	chomp $isatt;
	$message =~ s~<br \/>~\n~ig;
	$message =~ s~<br>~\n~ig;
	$message =~ s/ \&nbsp; \&nbsp; \&nbsp;/\t/ig;

		$settofield = "message";
	}
	$submittxt = "$post_txt{'10'}";
	$destination = "modify2";
	$is_preview = 0;
	$post = "postmodify";
	$preview = "previewmodify";
	if($mfn ne ""){
		$oldattcheck = qq~checked~;
		$newattcheck = qq~~;
	} else {
		$newattcheck = qq~checked~;
		$oldattcheck = qq~~;
	}
	require "$sourcedir/Post.pl";
	$yytitle = "$post_txt{'66'}";
	&Postpage;
	&template;
	exit;
}

sub ModifyMessage2 {
	if($iamguest) { &fatal_error($post_txt{'223'}); }

	if( $FORM{'previewmodify'} ) {
		require "$sourcedir/Post.pl";
		&Preview;
	}

	# the post is to be deleted...
	if ( $INFO{'d'} eq '1' ) {
		$threadid = $FORM{'thread'};
		$postid = $FORM{'id'};

		if ($postid eq "Poll" ) {
			unlink("$datadir/$threadid.poll");
			unlink("$datadir/$threadid.polled");
			$yySetLocation = qq~$scripturl?num=$threadid~;
			&redirectexit;
		} else {
			fopen(FILE, "$datadir/$threadid.txt") || &fatal_error("$post_txt{'23'} $threadid.txt", 1);
			@messages = <FILE>;
			fclose(FILE);
			$msgcnt = @messages;
			# Make sure the user is allowed to edit this post.
			if( $postid >= 0 && $postid < $msgcnt ) {

				chomp $messages[$postid];
				($msub, $mname, $memail, $mdate, $musername, $micon, $mattach, $mip, $mmessage, $mns, $mlm, $mlmb, $mfn) = split( /\|/, $messages[$postid]);
				$messagedate = $mdate;

				if ($tlnodelflag) {
					unless ($iamadmin || $iamgmod || $iammod) {
						$tlnodeltimesecs = $tlnodeltime*3600*24;
						$tldtime = $mdate + $tlnodeltimesecs;
						$tldcurrenttime = time + (3600*$timeoffset);
						if ( $tldcurrenttime > $tldtime ) {
							&fatal_error( "$timelocktxt{'01'}$tlnodeltime$timelocktxt{'02a'}" );
						}
						unless($registrationdate < $messagedate && $musername eq $username) {
							&fatal_error("$post_txt{'73'}");
						}
					}
				}
			} else { &fatal_error("$post_txt{'580'} $postid"); }
			$iamposter = ($musername eq $username && $msgcnt == 1) ? 1 : 0 ;
			$FORM{"del$postid"}=1;
			&MultiDel;
		}
	}

	## File Attachment Mod V3.0 ##
	
	if ($FORM{'file'} && $FORM{'w_file'} eq "attachnew") {
		$file = $FORM{'file'};
		$OS = $^O; # operating system name
		if($OS =~ /darwin/i) { $isUNIX = 1; }
		elsif($OS =~ /win/i) { $isWIN = 1; }
		else {$isUNIX = 1;}
		$mylimit = 1024 * $limit;
		$mydirlimit = 1024 * $dirlimit;
		$fixfile = $filename;
		$fixfile =~ s/.+\\([^\\]+)$|.+\/([^\/]+)$/$1/;
		$fixfile =~ s/[#%+,\/:?"<>'|@^!]//g;	#edit in between [ ] to include characters you dont want to allow in filenames (dont put a . there or you wont be able to get any file extensions).
		$fixfile =~ s/ /_/g;			#replaces spaces in filenames with a "_" character.

		if($overwrite == 2 && (-e "$uploaddir/$fixfile")){&fatal_error("$fatxt{'8'}");}
		if(!$overwrite){ # if $overwite = 0 or false, rename file using the checkex sub
			$fixfile = check_existence($uploaddir,$fixfile);
		}
		if ($checkext == 0) { $match = 1; } else {
		foreach $ext (@ext){
			chomp ($ext);
				if (grep /$ext$/i,$fixfile){$match=1; last;}
			}
		}
		if ($match) {
			if ($allowattach == 1 && (($allowguestattach == 0 && $username ne 'Guest') || $allowguestattach == 1)) { 
				$upload_okay = 1;
			}
		} else {
			&write_error("$fatxt{'20'} @ext ($fixfile)"); 
		}
		if ($mydirlimit > 0) {
			&dirstats;
		}
		$filesize = $ENV{'CONTENT_LENGTH'} - $postsize;
		$filesizekb = int ($filesize/1024);
		if ($filesize > $mylimit && $mylimit != 0) {
			$filesizediff = $filesizekb - $limit;
			if ($filesizediff == 1) { $sizevar = "kilobyte"; } else { $sizevar = "kilobytes"; }
			&write_error("$fatxt{'21'} $filesizediff $sizevar $fatxt{'21b'}");
		} elsif ($filesize > $spaceleft && $mydirlimit != 0) {	
			$filesizediff = $filesizekb - $kbspaceleft;
			if ($filesizediff == 1) { $sizevar = "kilobyte"; } else { $sizevar = "kilobytes"; }
			&write_error("$fatxt{'22'} $filesizediff $sizevar $fatxt{'22b'}");
		}
		$save_file = "$uploadurl/$fixfile"; 
		if ($upload_okay == 1) {
			# create a new file on the server using the formatted ( new instance ) filename
			if(fopen(NEWFILE, ">$uploaddir/$fixfile")){
				if($isWIN){binmode NEWFILE;} # if it's a WIN server, switch to binary mode
				# start reading users HD 1 kb at a time.
				while (read($filename, $buffer, 1024)){ 
					# print each kb to the new file on the server 
					print NEWFILE $buffer; 
				}
				# close the new file on the server and we're done
				fclose (NEWFILE);
			} else {
				# return the server's error message if the new file could not be created
				&fatal_error("$fatxt{'60'} $uploaddir");
			}
		}
					
		# check if file has actually been uploaded, by checking the file has a size
		if(-s "$uploaddir/$fixfile"){
			$upload_ok = 1;
		} else {
			# delete the file as it has no content
			unlink("$uploaddir/$fixfile");
			&fatal_error("$fatxt{'59'} $fixfile");
		}
		&clear_temp;
	}
	## /File Attachment Mod V3.0 ##


	my( $threadid, $postid, @messages, $msub, $mname, $memail, $mdate, $musername, $micon, $mattach, $mip, $mmessage, $mns, $mlm, $mlmb, $tnum, $tsub, $tname, $temail, $tdate, $treplies, $tusername, $ticon, $tstate, @threads, $tmpa, $tmpb, $tnum2, $tdate2, $newlastposttime, $newlastposter, $lastpostid, $views, $name, $email, $subject, $message, $ns,);
	my( $mfn );

	$threadid = $FORM{'threadid'};
	$postid = $FORM{'postid'};
	$pollthread = $FORM{'pollthread'};
#	&BoardTotals("load",$currentboard);
#	&MessageTotals("load",$threadid);

	if ($pollthread) {
		$maxpq ||= 60;
		$maxpo ||= 50;
		$maxpc ||= 0;
		$numpolloptions ||= 8;

		unless (-e "$datadir/$threadid.poll") {&fatal_error("$post_polltxt{'13'}");}

		fopen (FILE, "$datadir/$threadid.poll");
		@poll_data = <FILE>;
		fclose (FILE);
		chomp $poll_data[0];
		($poll_question, $poll_locked, $poll_uname, $poll_name, $poll_email, $poll_date, $guest_vote, $hide_results, $multi_choice, $poll_mod, $poll_modname, $poll_comment) = split(/\|/, $poll_data[0]);

		unless($poll_uname eq $username || $iammod || $iamadmin || $iamgmod) { &fatal_error("$post_polltxt{'13'}"); }

		$numcount = 0;
		unless ($FORM{"question"}) { &fatal_error("$post_polltxt{'37'}"); }
		if ( length($FORM{"question"} ) > $maxpq) { &fatal_error("$post_polltxt{'40'} $post_polltxt{'34a'} $maxpq $post_polltxt{'34b'} $post_polltxt{'36'}"); }
		$FORM{"question"} =~ s/\&nbsp;/ /g;
		$testspaces = $FORM{"question"};
		$testspaces =~ s/[\r\n\ ]//g;
		$testspaces =~ s/\&nbsp;//g;
		$testspaces =~ s~\[table\].*?\[tr\].*?\[td\]~~g;
		$testspaces =~ s~\[/td\].*?\[/tr\].*?\[/table\]~~g;
# Down boy, bad regex! - what is it doing? Removed as causes lots of problems
#		$testspaces =~ s/\[.*?\]//g;
		if (length($testspaces) == 0 && length($FORM{"question"}) > 0 ){ fatal_error("$maintxt{'2'} $testmessage");}
		$poll_question = $FORM{"question"};
		&ToHTML($poll_question);
		$guest_vote = $FORM{'guest_vote'} || 0;
		$hide_results = $FORM{'hide_results'} || 0;
		$multi_choice = $FORM{'multi_choice'} || 0;
		$poll_comment = $FORM{'poll_comment'} || "";
		if ( length($poll_comment ) > $maxpc) { &fatal_error("$post_polltxt{'57'} $post_polltxt{'34a'} $maxpc $post_polltxt{'34b'} $post_polltxt{'36'}"); }
		&ToHTML($poll_comment);
		$poll_comment =~ s~\n~<br />~g;
		$poll_comment =~ s~\r~~g;
		my @new_poll_data;
		push @new_poll_data, qq~$poll_question|$poll_locked|$poll_uname|$poll_name|$poll_email|$poll_date|$guest_vote|$hide_results|$multi_choice|$date|$username|$poll_comment\n~;

		for ($i = 1; $i <= $numpolloptions; $i++){
			chomp $poll_data[$i];
			($votes, $dummy) = split(/\|/, $poll_data[$i]);
			if (!$votes) {$votes = "0";}
			if ($FORM{"option$i"}) {
				if (length($FORM{"option$i"}) > $maxpo) { &fatal_error("$post_polltxt{'7'} $i  $post_polltxt{'34a'} $maxpo $post_polltxt{'34b'} $post_polltxt{'36'}"); }
				$FORM{"option$i"} =~ s/\&nbsp;/ /g;
				$testspaces = $FORM{"option$i"};
				$testspaces =~ s/[\r\n\ ]//g;
				$testspaces =~ s/\&nbsp;//g;
				$testspaces =~ s~\[table\].*?\[tr\].*?\[td\]~~g;
				$testspaces =~ s~\[/td\].*?\[/tr\].*?\[/table\]~~g;
# Down boy, bad regex! - what is it doing? Removed as causes lots of problems
#				$testspaces =~ s/\[.*?\]//g;
				if (length($testspaces) == 0 && length($FORM{"option$i"}) > 0 ){ fatal_error("$maintxt{'2'} $testmessage");}
				&ToHTML($FORM{"option$i"});
				$numcount++;
				push @new_poll_data, qq~$votes|$FORM{"option$i"}\n~;
			}
		}
		if ($numcount < 2) { &fatal_error("$post_polltxt{'38'}"); }

		fopen (POLL, ">$datadir/$threadid.poll");
		print POLL @new_poll_data;
		fclose (POLL);

		$yySetLocation = qq~$scripturl?num=$threadid~;

		&redirectexit;
	}

	fopen(FILE, "$datadir/$threadid.txt") || &fatal_error("$post_txt{'23'} $threadid.txt", 1);
	@messages = <FILE>;
	fclose(FILE);

	# Make sure the user is allowed to edit this post.
	if( $postid >= 0 && $postid < @messages ) {
		chomp $messages[$postid];
		($msub, $mname, $memail, $mdate, $musername, $micon, $mattach, $mip, $mmessage, $mns, $mlm, $mlmb, $mfn) = split( /\|/, $messages[$postid]);
		$messagedate = $mdate;
		$registrationdate = ${$uid.$username}{'regdate'};
		unless(($registrationdate < $messagedate && $musername eq $username) || $iammod || $iamadmin || $iamgmod) {
			&fatal_error("$post_txt{'67'}");
		}
	}
	else { &fatal_error("$post_txt{'580'} $postid"); }

	($tnum, $tsub, $tname, $temail, $tdate, $treplies, $tusername, $ticon, $tstate) = split( /\|/, $yyThreadLine );

	if( $tstate =~ /l/i ) {
		&fatal_error($post_txt{'90'});
	}

	# the post is to be modified...
	$name = $FORM{'name'};
	$email = $FORM{'email'};
	$subject = $FORM{'subject'};
	$message = $FORM{'message'};
	$icon = $FORM{'icon'};
	$ns = $FORM{'ns'};
	$notify = $FORM{'notify'};
	&CheckIcon;

	&fatal_error($post_txt{'78'}) unless($message);
	if (length($message)>$MaxMessLen) {
		require "$sourcedir/Post.pl";
		&Preview($post_txt{'536'} . " " . (length($message)-$MaxMessLen) . " " . $post_txt{'537'} );
	}

	$subject =~ s/&amp;/&/g;
	$subject =~ s/&quot;/"/g;
	$subject =~ s/&lt;/</g;
	$subject =~ s/&gt;/>/g;
	&FromChars($subject);
	$convertstr = $subject;
	$convertcut = 50;
	&CountChars;
	$subject = $convertstr;
	$subject =~ s/"/&quot;/g;
	$subject =~ s/</&lt;/g;
	$subject =~ s/>/&gt;/g;

	&ToHTML($name);
	$email =~ s/\|//g;
	&ToHTML($email);
	&fatal_error($post_txt{'77'}) unless($subject && $subject !~ m~\A[\s_.,]+\Z~ );
	my $testmessage = $message;
	$testmessage =~ s/[\r\n\ ]//g;
	$testmessage =~ s/\&nbsp;//g;
	$testmessage =~ s~\[table\].*?\[tr\].*?\[td\]~~g;
	$testmessage =~ s~\[/td\].*?\[/tr\].*?\[/table\]~~g;
	$testmessage =~ s/\[.*?\]//g;
	if ($testmessage eq "" && $message ne "" && $pollthread != 2){fatal_error("$maintxt{'2'} $testmessage");}

	&FromChars($message);
	$message =~ s/\cM//g;
	$message =~ s~\[([^\]]{0,30})\n([^\]]{0,30})\]~\[$1$2\]~g;
	$message =~ s~\[/([^\]]{0,30})\n([^\]]{0,30})\]~\[/$1$2\]~g;
	$message =~ s~(\w+://[^<>\s\n\"\]\[]+)\n([^<>\s\n\"\]\[]+)~$1\n$2~g;
	&ToHTML($message);
	$message =~ s/\t/ \&nbsp; \&nbsp; \&nbsp;/g;
	$message =~ s~\n~<br />~g;
	if( $postid == 0 ) {
		$tsub = $subject;
		$ticon = $icon;
	}
	$yyThreadLine = qq~$tnum|$tsub|$tname|$temail|$tdate|$treplies|$tusername|$ticon|$tstate\n~;

	if ( $mip =~ /$user_ip/) {$useredit_ip = $mip;}
	else {$useredit_ip = "$mip $user_ip";}

	if ($FORM{'w_file'} eq "attachnew" && $fixfile) {
		$messages[$postid] = qq~$subject|$mname|$memail|$mdate|$musername|$icon|0|$useredit_ip|$message|$ns|$date|$username|$fixfile\n~;
		fopen(FILE, ">$datadir/$threadid.txt", 1) || &fatal_error("$txt{'23'} $threadid.txt");
		print FILE @messages;
		fopen(AML, "$vardir/attachments.txt");
		my @attachments = <AML>;
		fclose(AML);
		fopen(AML, ">$vardir/attachments.txt");
		foreach $file(@attachments) {
			chomp $file;
			my ($amthreadid, $amreplies, $amthreadsub, $amposter, $amcurrentboard, $amkb, $amdate, $amfn) = split(/\|/,$file);
			if($amfn ne $mfn) {
				print AML qq~$amthreadid|$amreplies|$amthreadsub|$amposter|$amcurrentboard|$amkb|$amdate|$amfn\n~;
			}
		}
		print AML qq~$threadid|$treplies|$subject|$musername|$currentboard|$filesizekb|$date|$fixfile\n~;
		fclose(AML);
		unlink("$uploaddir/$mfn");
	} elsif ($FORM{'w_file'} eq "attachold") {
		$messages[$postid] = qq~$subject|$mname|$memail|$mdate|$musername|$icon|0|$useredit_ip|$message|$ns|$date|$username|$mfn\n~;
		fopen(FILE, ">$datadir/$threadid.txt", 1) || &fatal_error("$txt{'23'} $threadid.txt");
		print FILE @messages;
		fclose(FILE);
	} elsif ($FORM{'w_file'} eq "attachnew" && !$fixfile) {
		$messages[$postid] = qq~$subject|$mname|$memail|$mdate|$musername|$icon|0|$useredit_ip|$message|$ns|$date|$username|$mfn\n~;
		fopen(FILE, ">$datadir/$threadid.txt", 1) || &fatal_error("$txt{'23'} $threadid.txt");
		print FILE @messages;
		fclose(FILE);
	} elsif ($FORM{'w_file'} eq "attachdel" && -e("$uploaddir/$mfn")) {
		$messages[$postid] = qq~$subject|$mname|$memail|$mdate|$musername|$icon|0|$useredit_ip|$message|$ns|$date|$username|\n~;
		fopen(FILE, ">$datadir/$threadid.txt", 1) || &fatal_error("$txt{'23'} $threadid.txt");
		print FILE @messages;
		fopen(AML, "$vardir/attachments.txt");
		my @attachments = <AML>;
		fclose(AML);
		fopen(AML, ">$vardir/attachments.txt");
		foreach $file(@attachments) {
			chomp $file;
			my ($amthreadid, $amreplies, $amthreadsub, $amposter, $amcurrentboard, $amkb, $amdate, $amfn) = split(/\|/,$file);
			if($amfn ne $mfn) {
				print AML qq~$amthreadid|$amreplies|$amthreadsub|$amposter|$amcurrentboard|$amkb|$amdate|$amfn\n~;
			}
		}
		unlink("$uploaddir/$mfn");
		fclose(FILE);
	} elsif ($FORM{'w_file'} eq "attachdel" && !-e("$uploaddir/$mfn")) {
		$messages[$postid] = qq~$subject|$mname|$memail|$mdate|$musername|$icon|0|$useredit_ip|$message|$ns|$date|$username|\n~;
		fopen(FILE, ">$datadir/$threadid.txt", 1) || &fatal_error("$txt{'23'} $threadid.txt");
		print FILE @messages;
		fclose(FILE);
	} else {
		$messages[$postid] = qq~$subject|$mname|$memail|$mdate|$musername|$icon|0|$useredit_ip|$message|$ns|$date|$username|$mfn\n~;
		fopen(FILE, ">$datadir/$threadid.txt", 1) || &fatal_error("$txt{'23'} $threadid.txt");
		print FILE @messages;
		fclose(FILE);
	}

	if( $postid == 0 ) {
		# maybe thread sub and/or icon was changed -> Save the current board
		fopen(FILE, "+<$boardsdir/$currentboard.txt", 1) || &fatal_error("$post_txt{'23'} $currentboard.txt", 1);
		seek FILE, 0, 0;
		my @buffer = <FILE>;
		truncate FILE, 0;
		for ($a = 0; $a < @buffer; $a++) {
			if ( $buffer[$a] =~ m~\A$threadid\|~o ) { $buffer[$a] = $yyThreadLine; last; }
		}
		seek FILE, 0, 0;
		print FILE @buffer;
		fclose(FILE);
		&BoardTotals("load",$currentboard);
		&BoardSetLastInfo($currentboard);
	}
	elsif( $postid == $#messages && $a == 0) {
		# maybe last message sub and/or icon was changed -> update and board info
		&BoardTotals("load",$currentboard);
		&BoardSetLastInfo($currentboard);
	}

	&dumplog($currentboard);

	my $start = int($postid / $maxmessagedisplay) * $maxmessagedisplay;

	$thread = $threadid;
	if($notify) {
		$INFO{'thread'} = $thread;
		$INFO{'start'} = $start;
		require "$sourcedir/Notify.pl";
		&Notify2;
	} else {
		require "$sourcedir/Notify.pl";
		&NoNotify;
	}

	$yySetLocation = qq~$scripturl?num=$threadid/$start#$postid~;
	&redirectexit;
}

sub MultiDel {
	$yySetLocation = qq~$scripturl?num=$INFO{'thread'}/$INFO{'start'}~;

	$thread = $INFO{'thread'};

	fopen(FILE, "$datadir/$thread.txt", 1) || &fatal_error("$post_txt{'23'} $thread.txt", 1);
		@messages = <FILE>;
	fclose(FILE);
	$messcount = @messages;

	# check all checkboxes, delete posts if checkbox is ticked
	$kill=0;

	for ($count=$messcount; $count>-1;$count--) {
		if ($FORM{"del$count"} ne ''){
			@message = split(/\|/, $messages[$count]);
			if ($message[12] ne "") { &remove_att($message[12]);}
			splice(@messages, $count, 1);
			$kill++;

			# decrease members post count if not in a zero post count board
			if (!${$uid.$currentboard}{'zero'}) {
				$musername = $message[4];
				if( $musername ne 'Guest' ) {
					if (!${$uid.$musername}{'password'}) {
						&LoadUser($musername);
					}
					if (${$uid.$musername}{'postcount'} > 0) {
						${$uid.$musername}{'postcount'}--;
						&UserAccount($musername,"update");
					}
					if (${$uid.$musername}{'position'}) {
						$grp_after = qq~${$uid.$musername}{'position'}~;
					} else {
						foreach $postamount (sort { $b <=> $a } keys %Post) {
							if (${$uid.$musername}{'postcount'} > $postamount){
								($title, undef) = split(/\|/, $Post{$postamount}, 2);
								$grp_after = $title;
								last;
							}
						}
					}
					&ManageMemberinfo("update",$user,'','',$grp_after,${$uid.$musername}{'postcount'});
				}
			}
		}			
	}

	my $nmes = scalar @messages;
	if ($nmes<1){
		# all post was deleted, call removethread
		require "$sourcedir/Favorites.pl";
		$INFO{'ref'} = "delete";
		&RemFav($thread);
		$iamposter = ($musername eq $username) ? 1 : 0 ;
		require "$sourcedir/RemoveTopic.pl";
		&RemoveThread;
	}
	# if thread has not been deleted: update thread, update message index details ...
	fopen(FILE, ">$datadir/$thread.txt", 1) || &fatal_error("$post_txt{'23'} $thread.txt", 1);
		print FILE @messages;
	fclose(FILE);

	my (@firstmessage) = split( /\|/, $messages[0]);
	my (@lastmessage) = split( /\|/, $messages[$#messages]);

	# update the current thread
	&MessageTotals("load",$thread);
	${$thread}{'replies'} = $#messages;
	${$thread}{'lastposter'} = $lastmessage[4] eq "Guest" ? qq~Guest-$lastmessage[2]~ : $lastmessage[4];
	&MessageTotals("update",$thread);

	# update the current board.
	&BoardTotals("load",$currentboard);
	${$uid.$currentboard}{'messagecount'} -= $kill;
	&BoardTotals("update",$currentboard);

	$threadline='';
	fopen(BOARDFILE, "+<$boardsdir/$currentboard.txt", 1) || &fatal_error("$subs_txt{'23'} $currentboard.txt", 1);
		seek BOARDFILE, 0, 0;
		@buffer = <BOARDFILE>;
		truncate BOARDFILE, 0;
		seek BOARDFILE, 0, 0;

		for ($a = 0; $a < @buffer; $a++) {
			if ( $buffer[$a] =~ m~\A$thread\|~ ) {
				$threadline=$buffer[$a];
				splice(@buffer, $a, 1);
				last;
			}
		}
		
		chomp $threadline;

		@newthreadline = split(/\|/,$threadline);

		$newthreadline[1] = $firstmessage[0];		# sub of first message
		$newthreadline[7] = $firstmessage[5];		# icon of first message
		$newthreadline[4] = $lastmessage[3];		# date of last message
		$newthreadline[5] = ${$thread}{'replies'};	# replay number
		$NewThreadLine = join("|", @newthreadline)."\n";

		$inserted=0;	
		for ($a=0; $a<@buffer; $a++) {
			@boardthreadline = split(/\|/, $buffer[$a]);
			if ( !$inserted && $boardthreadline[4] < $newthreadline[4]) {
				print BOARDFILE $NewThreadLine;
				$inserted=1;
			}
			print BOARDFILE $buffer[$a];
		}
		if ( !$inserted ) {
			print BOARDFILE $NewThreadLine;
		}
		fclose(BOARDFILE);
		&dumplog($board);

	fclose(BOARDFILE);

	&BoardSetLastInfo($currentboard);

	if ($INFO{'d'} eq '1') {
		$postid = $postid > ${$thread}{'replies'} ? ${$thread}{'replies'} : $postid;
		my $start = int($postid / $maxmessagedisplay) * $maxmessagedisplay;
		$yySetLocation = qq~$scripturl?num=$threadid/$start#$postid~;
	}
	&redirectexit;
}

sub remove_att {
	my $rematt = $_[0];
	chomp $rematt;
	if(-e("$uploaddir/$rematt")) { 
		fopen(AMV, "$vardir/attachments.txt");
		my @attachments = <AMV>;
		fclose(AMV);
		fopen(AMV, ">$vardir/attachments.txt");
		foreach $row(@attachments) {
			chomp $row;
			my ($amthreadid, $amreplies, $amthreadsub, $amposter, $amcurrentboard, $amkb, $amdate, $amfn) = split(/\|/,$row);
			if($rematt ne $amfn) {
				print AMV qq~$amthreadid|$amreplies|$amthreadsub|$amposter|$currentboard|$amkb|$amdate|$amfn\n~;
			}
		}
		fclose(AMV);
		unlink("$uploaddir/$rematt"); 
	} else {return 0;}
}

1;