X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/0f06504422792d7132b7644caf4dabf19d957659..252804628d7297f756f8587d78a07a61fc00846e:/IkiWiki/Plugin/attachment.pm

diff --git a/IkiWiki/Plugin/attachment.pm b/IkiWiki/Plugin/attachment.pm
index 63f0b73c3..d56dd18ad 100644
--- a/IkiWiki/Plugin/attachment.pm
+++ b/IkiWiki/Plugin/attachment.pm
@@ -3,42 +3,52 @@ package IkiWiki::Plugin::attachment;
 
 use warnings;
 use strict;
-use IkiWiki 2.00;
+use IkiWiki 3.00;
 
-sub import { #{{{
+sub import {
+	add_underlay("attachment");
+	add_underlay("javascript");
+	add_underlay("jquery");
 	hook(type => "getsetup", id => "attachment", call => \&getsetup);
 	hook(type => "checkconfig", id => "attachment", call => \&checkconfig);
 	hook(type => "formbuilder_setup", id => "attachment", call => \&formbuilder_setup);
-	hook(type => "formbuilder", id => "attachment", call => \&formbuilder);
-} # }}}
+	hook(type => "formbuilder", id => "attachment", call => \&formbuilder, last => 1);
+	IkiWiki::loadplugin("filecheck");
+}
 
-sub getsetup () { #{{{
+sub getsetup () {
 	return
-		virus_checker => {
-			type => "string",
-			example => "clamdscan -",
-			description => "virus checker program (reads STDIN, returns nonzero if virus found)",
-			safe => 0, # executed
+		plugin => {
+			safe => 1,
 			rebuild => 0,
+			section => "web",
 		},
 		allowed_attachments => {
 			type => "pagespec",
-			example => "mimetype(image/*) and maxsize(50kb)",
+			example => "virusfree() and mimetype(image/*) and maxsize(50kb)",
 			description => "enhanced PageSpec specifying what attachments are allowed",
 			link => "ikiwiki/PageSpec/attachment",
 			safe => 1,
 			rebuild => 0,
 		},
-} #}}}
+		virus_checker => {
+			type => "string",
+			example => "clamdscan -",
+			description => "virus checker program (reads STDIN, returns nonzero if virus found)",
+			safe => 0, # executed
+			rebuild => 0,
+		},
+}
 
-sub check_canattach ($$;$) { #{{{
+sub check_canattach ($$;$) {
 	my $session=shift;
 	my $dest=shift; # where it's going to be put, under the srcdir
 	my $file=shift; # the path to the attachment currently
 
 	# Don't allow an attachment to be uploaded with the same name as an
 	# existing page.
-	if (exists $pagesources{$dest} && $pagesources{$dest} ne $dest) {
+	if (exists $IkiWiki::pagesources{$dest} &&
+	    $IkiWiki::pagesources{$dest} ne $dest) {
 		error(sprintf(gettext("there is already a page named %s"), $dest));
 	}
 
@@ -50,45 +60,29 @@ sub check_canattach ($$;$) { #{{{
 			$config{allowed_attachments},
 			file => $file,
 			user => $session->param("name"),
-			ip => $ENV{REMOTE_ADDR},
+			ip => $session->remote_addr(),
 		);
 	}
 
-	# XXX deprecated, should be removed eventually
-	if ($allowed) {
-		foreach my $admin (@{$config{adminuser}}) {
-			my $allowed_attachments=IkiWiki::userinfo_get($admin, "allowed_attachments");
-			if (defined $allowed_attachments &&
-			    length $allowed_attachments) {
-				$allowed=pagespec_match($dest,
-					$allowed_attachments,
-					file => $file,
-					user => $session->param("name"),
-					ip => $ENV{REMOTE_ADDR},
-				);
-				last if $allowed;
-			}
-		}
-	}
-
 	if (! $allowed) {
 		error(gettext("prohibited by allowed_attachments")." ($allowed)");
 	}
 	else {
 		return 1;
 	}
-} #}}}
+}
 
-sub checkconfig () { #{{{
+sub checkconfig () {
 	$config{cgi_disable_uploads}=0;
-} #}}}
+}
 
-sub formbuilder_setup (@) { #{{{
+sub formbuilder_setup (@) {
 	my %params=@_;
 	my $form=$params{form};
 	my $q=$params{cgi};
 
-	if (defined $form->field("do") && $form->field("do") eq "edit") {
+	if (defined $form->field("do") && ($form->field("do") eq "edit" ||
+	    $form->field("do") eq "create")) {
 		# Add attachment field, set type to multipart.
 		$form->enctype(&CGI::MULTIPART);
 		$form->field(name => 'attachment', type => 'file');
@@ -97,10 +91,20 @@ sub formbuilder_setup (@) { #{{{
 		$form->tmpl_param("field-upload" => '<input name="_submit" type="submit" value="Upload Attachment" />');
 		$form->tmpl_param("field-link" => '<input name="_submit" type="submit" value="Insert Links" />');
 
-		# Add the javascript from the toggle plugin;
-		# the attachments interface uses it to toggle visibility.
+		# Add all the javascript used by the attachments interface.
 		require IkiWiki::Plugin::toggle;
-		$form->tmpl_param("javascript" => $IkiWiki::Plugin::toggle::javascript);
+		my $js=IkiWiki::Plugin::toggle::include_javascript($params{page});
+		$js.='<link rel="stylesheet" href="'.urlto("ikiwiki/jquery-ui.min.css", $params{page}).'" id="theme">'."\n";
+		my @jsfiles=qw{jquery.min jquery-ui.min
+			jquery.tmpl.min jquery.iframe-transport
+			jquery.fileupload jquery.fileupload-ui
+		};
+		foreach my $file (@jsfiles) {
+			$js.='<script src="'.urlto("ikiwiki/$file.js", $params{page}).
+			     '" type="text/javascript" charset="utf-8"></script>'."\n";
+		}
+		$form->tmpl_param("javascript" => $js);
+
 		# Start with the attachments interface toggled invisible,
 		# but if it was used, keep it open.
 		if ($form->submitted ne "Upload Attachment" &&
@@ -111,132 +115,46 @@ sub formbuilder_setup (@) { #{{{
 		else {
 			$form->tmpl_param("attachments-class" => "toggleable-open");
 		}
-	}
-	elsif ($form->title eq "preferences") {
-		# XXX deprecated, should remove eventually
-		my $session=$params{session};
-		my $user_name=$session->param("name");
-
-		$form->field(name => "allowed_attachments", size => 50,
-			fieldset => "admin",
-			comment => "deprecated; please move to allowed_attachments in setup file",
-		);
-		if (! IkiWiki::is_admin($user_name)) {
-			$form->field(name => "allowed_attachments", type => "hidden");
-		}
-                if (! $form->submitted) {
-			my $value=IkiWiki::userinfo_get($user_name, "allowed_attachments");
-			if (length $value) {
-				$form->field(name => "allowed_attachments", force => 1,
-					value => IkiWiki::userinfo_get($user_name, "allowed_attachments"));
-			}
-			else {
-				$form->field(name => "allowed_attachments", type => "hidden");
-			}
-                }
-		if ($form->submitted && $form->submitted eq 'Save Preferences') {
-			if (defined $form->field("allowed_attachments")) {
-				IkiWiki::userinfo_set($user_name, "allowed_attachments",
-				$form->field("allowed_attachments")) ||
-					error("failed to set allowed_attachments");
-				if (length $form->field("allowed_attachments")) {
-					$form->field(name => "allowed_attachments", type => "hidden");
-				}
-			}
+		
+		# Save attachments in holding area before previewing and
+		# saving.
+		if ($form->submitted eq "Preview" ||
+		    $form->submitted eq "Save Page") {
+			attachments_save($form, $params{session});
 		}
 	}
-} #}}}
+}
 
-sub formbuilder (@) { #{{{
+sub formbuilder (@) {
 	my %params=@_;
 	my $form=$params{form};
 	my $q=$params{cgi};
 
-	return if ! defined $form->field("do") || $form->field("do") ne "edit";
+	return if ! defined $form->field("do") || ($form->field("do") ne "edit" && $form->field("do") ne "create") ;
 
-	my $filename=$q->param('attachment');
-	if (defined $filename && length $filename &&
-            ($form->submitted eq "Upload Attachment" || $form->submitted eq "Save Page")) {
-		my $session=$params{session};
-		
-		# This is an (apparently undocumented) way to get the name
-		# of the temp file that CGI writes the upload to.
-		my $tempfile=$q->tmpFileName($filename);
-		if (! defined $tempfile || ! length $tempfile) {
-			# perl 5.8 needs an alternative, awful method
-			if ($q =~ /HASH/ && exists $q->{'.tmpfiles'}) {
-				foreach my $key (keys(%{$q->{'.tmpfiles'}})) {
-					$tempfile=$q->tmpFileName(\$key);
-					last if defined $tempfile && length $tempfile;
-				}
-			}
-			if (! defined $tempfile || ! length $tempfile) {
-				error("CGI::tmpFileName failed to return the uploaded file name");
-			}
-		}
-
-		$filename=IkiWiki::linkpage(
-			IkiWiki::possibly_foolish_untaint(
-				attachment_location($form->field('page')).
-				IkiWiki::basename($filename)));
-		if (IkiWiki::file_pruned($filename, $config{srcdir})) {
-			error(gettext("bad attachment filename"));
-		}
-		
-		# Check that the user is allowed to edit a page with the
-		# name of the attachment.
-		IkiWiki::check_canedit($filename, $q, $session, 1);
-		# And that the attachment itself is acceptable.
-		check_canattach($session, $filename, $tempfile);
-
-		# Needed for fast_file_copy and for rendering below.
-		require IkiWiki::Render;
-
-		# Move the attachment into place.
-		# Try to use a fast rename; fall back to copying.
-		IkiWiki::prep_writefile($filename, $config{srcdir});
-		unlink($config{srcdir}."/".$filename);
-		if (rename($tempfile, $config{srcdir}."/".$filename)) {
-			# The temp file has tight permissions; loosen up.
-			chmod(0666 & ~umask, $config{srcdir}."/".$filename);
-		}
-		else {
-			my $fh=$q->upload('attachment');
-			if (! defined $fh || ! ref $fh) {
-				# needed by old CGI versions
-				$fh=$q->param('attachment');
-				if (! defined $fh || ! ref $fh) {
-					# even that doesn't always work,
-					# fall back to opening the tempfile
-					$fh=undef;
-					open($fh, "<", $tempfile) || error("failed to open \"$tempfile\": $!");
-				}
-			}
-			binmode($fh);
-			writefile($filename, $config{srcdir}, undef, 1, sub {
-				IkiWiki::fast_file_copy($tempfile, $filename, $fh, @_);
-			});
-		}
+	my $filename=Encode::decode_utf8($q->param('attachment'));
+	if (defined $filename && length $filename) {
+		attachment_store($filename, $form, $q, $params{session});
+	}
 
-		# Check the attachment in and trigger a wiki refresh.
-		if ($config{rcs}) {
-			IkiWiki::rcs_add($filename);
-			IkiWiki::disable_commit_hook();
-			IkiWiki::rcs_commit($filename, gettext("attachment upload"),
-				IkiWiki::rcs_prepedit($filename),
-				$session->param("name"), $ENV{REMOTE_ADDR});
-			IkiWiki::enable_commit_hook();
-			IkiWiki::rcs_update();
-		}
-		IkiWiki::refresh();
-		IkiWiki::saveindex();
+	if ($form->submitted eq "Save Page") {
+		attachments_save($form, $params{session});
 	}
-	elsif ($form->submitted eq "Insert Links") {
-		my $page=quotemeta($q->param("page"));
+
+	if ($form->submitted eq "Insert Links") {
+		my $page=quotemeta(Encode::decode_utf8($q->param("page")));
 		my $add="";
 		foreach my $f ($q->param("attachment_select")) {
+			$f=Encode::decode_utf8($f);
 			$f=~s/^$page\///;
-			$add.="[[$f]]\n";
+			if (IkiWiki::isinlinableimage($f) &&
+			    IkiWiki::Plugin::img->can("import")) {
+				$add.='[[!img '.$f.' align="right" size="" alt=""]]';
+			}
+			else {
+				$add.="[[$f]]";
+			}
+			$add.="\n";
 		}
 		$form->field(name => 'editcontent',
 			value => $form->field('editcontent')."\n\n".$add,
@@ -246,260 +164,232 @@ sub formbuilder (@) { #{{{
 	# Generate the attachment list only after having added any new
 	# attachments.
 	$form->tmpl_param("attachment_list" => [attachment_list($form->field('page'))]);
-} # }}}
-
-sub attachment_location ($) { #{{{
-	my $page=shift;
-	
-	# Put the attachment in a subdir of the page it's attached
-	# to, unless that page is an "index" page.
-	$page=~s/(^|\/)index//;
-	$page.="/" if length $page;
-	
-	return $page;
-} #}}}
+}
 
-sub attachment_list ($) { #{{{
-	my $page=shift;
-	my $loc=attachment_location($page);
+sub attachment_holding_location {
+	my $page=attachment_location(shift);
 
-	my @ret;
-	foreach my $f (values %pagesources) {
-		if (! defined IkiWiki::pagetype($f) &&
-		    $f=~m/^\Q$loc\E[^\/]+$/ &&
-		    -e "$config{srcdir}/$f") {
-			push @ret, {
-				"field-select" => '<input type="checkbox" name="attachment_select" value="'.$f.'" />',
-				link => htmllink($page, $page, $f, noimageinline => 1),
-				size => humansize((stat(_))[7]),
-				mtime => displaytime($IkiWiki::pagemtime{$f}),
-				mtime_raw => $IkiWiki::pagemtime{$f},
-			};
-		}
-	}
-
-	# Sort newer attachments to the top of the list, so a newly-added
-	# attachment appears just before the form used to add it.
-	return sort { $b->{mtime_raw} <=> $a->{mtime_raw} || $a->{link} cmp $b->{link} } @ret;
-} #}}}
-
-my %units=( #{{{	# size in bytes
-	B		=> 1,
-	byte		=> 1,
-	KB		=> 2 ** 10,
-	kilobyte 	=> 2 ** 10,
-	K		=> 2 ** 10,
-	KB		=> 2 ** 10,
-	kilobyte 	=> 2 ** 10,
-	M		=> 2 ** 20,
-	MB		=> 2 ** 20,
-	megabyte	=> 2 ** 20,
-	G		=> 2 ** 30,
-	GB		=> 2 ** 30,
-	gigabyte	=> 2 ** 30,
-	T		=> 2 ** 40,
-	TB		=> 2 ** 40,
-	terabyte	=> 2 ** 40,
-	P		=> 2 ** 50,
-	PB		=> 2 ** 50,
-	petabyte	=> 2 ** 50,
-	E		=> 2 ** 60,
-	EB		=> 2 ** 60,
-	exabyte		=> 2 ** 60,
-	Z		=> 2 ** 70,
-	ZB		=> 2 ** 70,
-	zettabyte	=> 2 ** 70,
-	Y		=> 2 ** 80,
-	YB		=> 2 ** 80,
-	yottabyte	=> 2 ** 80,
-	# ikiwiki, if you find you need larger data quantities, either modify
-	# yourself to add them, or travel back in time to 2008 and kill me.
-	#   -- Joey
-); #}}}
-
-sub parsesize ($) { #{{{
-	my $size=shift;
-
-	no warnings;
-	my $base=$size+0; # force to number
-	use warnings;
-	foreach my $unit (sort keys %units) {
-		if ($size=~/[0-9\s]\Q$unit\E$/i) {
-			return $base * $units{$unit};
-		}
-	}
-	return $base;
-} #}}}
+	my $dir=$config{wikistatedir}."/attachments/".
+		IkiWiki::possibly_foolish_untaint(linkpage($page));
+	$dir=~s/\/$//;
+	return $dir;
+}
 
-sub humansize ($) { #{{{
-	my $size=shift;
+sub is_held_attachment {
+	my $attachment=shift;
 
-	foreach my $unit (reverse sort { $units{$a} <=> $units{$b} || $b cmp $a } keys %units) {
-		if ($size / $units{$unit} > 0.25) {
-			return (int($size / $units{$unit} * 10)/10).$unit;
-		}
-	}
-	return $size; # near zero, or negative
-} #}}}
-
-package IkiWiki::PageSpec;
-
-sub match_maxsize ($$;@) { #{{{
-	shift;
-	my $maxsize=eval{IkiWiki::Plugin::attachment::parsesize(shift)};
-	if ($@) {
-		return IkiWiki::FailReason->new("unable to parse maxsize (or number too large)");
-	}
-
-	my %params=@_;
-	if (! exists $params{file}) {
-		return IkiWiki::FailReason->new("no file specified");
-	}
-
-	if (-s $params{file} > $maxsize) {
-		return IkiWiki::FailReason->new("file too large (".(-s $params{file})." >  $maxsize)");
+	my $f=attachment_holding_location($attachment);
+	if (-f $f) {
+		return $f
 	}
 	else {
-		return IkiWiki::SuccessReason->new("file not too large");
+		return undef;
 	}
-} #}}}
+}
 
-sub match_minsize ($$;@) { #{{{
-	shift;
-	my $minsize=eval{IkiWiki::Plugin::attachment::parsesize(shift)};
-	if ($@) {
-		return IkiWiki::FailReason->new("unable to parse minsize (or number too large)");
+# Stores the attachment in a holding area, not yet in the wiki proper.
+sub attachment_store {
+	my $filename=shift;
+	my $form=shift;
+	my $q=shift;
+	my $session=shift;
+	
+	# This is an (apparently undocumented) way to get the name
+	# of the temp file that CGI writes the upload to.
+	my $tempfile=$q->tmpFileName($filename);
+	if (! defined $tempfile || ! length $tempfile) {
+		# perl 5.8 needs an alternative, awful method
+		if ($q =~ /HASH/ && exists $q->{'.tmpfiles'}) {
+			foreach my $key (keys(%{$q->{'.tmpfiles'}})) {
+				$tempfile=$q->tmpFileName(\$key);
+				last if defined $tempfile && length $tempfile;
+			}
+		}
+		if (! defined $tempfile || ! length $tempfile) {
+			error("CGI::tmpFileName failed to return the uploaded file name");
+		}
 	}
 
-	my %params=@_;
-	if (! exists $params{file}) {
-		return IkiWiki::FailReason->new("no file specified");
+	$filename=IkiWiki::basename($filename);
+	$filename=~s/.*\\+(.+)/$1/; # hello, windows
+	$filename=IkiWiki::possibly_foolish_untaint(linkpage($filename));
+	my $dest=attachment_holding_location($form->field('page'));
+	
+	# Check that the user is allowed to edit the attachment.
+	my $final_filename=
+		linkpage(IkiWiki::possibly_foolish_untaint(
+			attachment_location($form->field('page')))).
+		$filename;
+	eval {
+		if (IkiWiki::file_pruned($final_filename)) {
+			error(gettext("bad attachment filename"));
+		}
+		IkiWiki::check_canedit($final_filename, $q, $session);
+		# And that the attachment itself is acceptable.
+		check_canattach($session, $final_filename, $tempfile);
+	};
+	if ($@) {
+		# save error in case called functions clobber $@
+		my $error = $@;
+		json_response($q, $form, $dest."/".$filename, $error);
+		error $error;
 	}
 
-	if (-s $params{file} < $minsize) {
-		return IkiWiki::FailReason->new("file too small");
+	# Move the attachment into holding directory.
+	# Try to use a fast rename; fall back to copying.
+	IkiWiki::prep_writefile($filename, $dest);
+	unlink($dest."/".$filename);
+	if (rename($tempfile, $dest."/".$filename)) {
+		# The temp file has tight permissions; loosen up.
+		chmod(0666 & ~umask, $dest."/".$filename);
 	}
 	else {
-		return IkiWiki::SuccessReason->new("file not too small");
+		my $fh=$q->upload('attachment');
+		if (! defined $fh || ! ref $fh) {
+			# needed by old CGI versions
+			$fh=$q->param('attachment');
+			if (! defined $fh || ! ref $fh) {
+				# even that doesn't always work,
+				# fall back to opening the tempfile
+				$fh=undef;
+				open($fh, "<", $tempfile) || error("failed to open \"$tempfile\": $!");
+			}
+		}
+		binmode($fh);
+		require IkiWiki::Render; 
+		writefile($filename, $dest, undef, 1, sub {
+			IkiWiki::fast_file_copy($tempfile, $filename, $fh, @_);
+		});
 	}
-} #}}}
 
-sub match_mimetype ($$;@) { #{{{
-	shift;
-	my $wanted=shift;
+	json_response($q, $form, $dest."/".$filename, stored_msg());
+}
 
-	my %params=@_;
-	if (! exists $params{file}) {
-		return IkiWiki::FailReason->new("no file specified");
-	}
+# Save all stored attachments for a page.
+sub attachments_save {
+	my $form=shift;
+	my $session=shift;
 
-	# Use ::magic to get the mime type, the idea is to only trust
-	# data obtained by examining the actual file contents.
-	eval q{use File::MimeInfo::Magic};
-	if ($@) {
-		return IkiWiki::FailReason->new("failed to load File::MimeInfo::Magic ($@); cannot check MIME type");
-	}
-	my $mimetype=File::MimeInfo::Magic::magic($params{file});
-	if (! defined $mimetype) {
-		$mimetype="unknown";
+	# Move attachments out of holding directory.
+	my @attachments;
+	my $dir=attachment_holding_location($form->field('page'));
+	foreach my $filename (glob("$dir/*")) {
+		$filename=Encode::decode_utf8($filename);
+		next unless -f $filename;
+		my $destdir=linkpage(IkiWiki::possibly_foolish_untaint(
+			attachment_location($form->field('page'))));
+		my $absdestdir=$config{srcdir}."/".$destdir;
+		my $destfile=IkiWiki::basename($filename);
+		my $dest=$absdestdir.$destfile;
+		unlink($dest);
+		IkiWiki::prep_writefile($destfile, $absdestdir);
+		rename($filename, $dest);
+		push @attachments, $destdir.$destfile;
+	}
+	return unless @attachments;
+	require IkiWiki::Render;
+	IkiWiki::prune($dir, $config{wikistatedir}."/attachments");
+
+	# Check the attachments in and trigger a wiki refresh.
+	if ($config{rcs}) {
+		IkiWiki::rcs_add($_) foreach @attachments;
+		IkiWiki::disable_commit_hook();
+		IkiWiki::rcs_commit_staged(
+			message => gettext("attachment upload"),
+			session => $session,
+		);
+		IkiWiki::enable_commit_hook();
+		IkiWiki::rcs_update();
 	}
+	IkiWiki::refresh();
+	IkiWiki::saveindex();
+}
 
-	my $regexp=IkiWiki::glob2re($wanted);
-	if ($mimetype!~/^$regexp$/i) {
-		return IkiWiki::FailReason->new("file MIME type is $mimetype, not $wanted");
-	}
-	else {
-		return IkiWiki::SuccessReason->new("file MIME type is $mimetype");
-	}
-} #}}}
+sub attachment_location ($) {
+	my $page=shift;
+	
+	# Put the attachment in a subdir of the page it's attached
+	# to, unless that page is the "index" page.
+	return "" if $page eq 'index';
+	$page.="/" if length $page;
+	
+	return $page;
+}
 
-sub match_virusfree ($$;@) { #{{{
-	shift;
-	my $wanted=shift;
+sub attachment_list ($) {
+	my $page=shift;
+	my $loc=attachment_location($page);
 
-	my %params=@_;
-	if (! exists $params{file}) {
-		return IkiWiki::FailReason->new("no file specified");
-	}
+	my $std=sub {
+		my $file=shift;
+		my $mtime=shift;
+		my $date=shift;
+		my $size=shift;
 
-	if (! exists $IkiWiki::config{virus_checker} ||
-	    ! length $IkiWiki::config{virus_checker}) {
-		return IkiWiki::FailReason->new("no virus_checker configured");
-	}
+		name => $file,
+		size => IkiWiki::Plugin::filecheck::humansize($size),
+		mtime => $date,
+		mtime_raw => $mtime,
+	};
 
-	# The file needs to be fed into the virus checker on stdin,
-	# because the file is not world-readable, and if clamdscan is
-	# used, clamd would fail to read it.
-	eval q{use IPC::Open2};
-	error($@) if $@;
-	open (IN, "<", $params{file}) || return IkiWiki::FailReason->new("failed to read file");
-	binmode(IN);
-	my $sigpipe=0;
-	$SIG{PIPE} = sub { $sigpipe=1 };
-	my $pid=open2(\*CHECKER_OUT, "<&IN", $IkiWiki::config{virus_checker}); 
-	my $reason=<CHECKER_OUT>;
-	chomp $reason;
-	1 while (<CHECKER_OUT>);
-	close(CHECKER_OUT);
-	waitpid $pid, 0;
-	$SIG{PIPE}="DEFAULT";
-	if ($sigpipe || $?) {
-		if (! length $reason) {
-			$reason="virus checker $IkiWiki::config{virus_checker}; failed with no output";
+	# attachments already in the wiki
+	my %attachments;
+	foreach my $f (values %pagesources) {
+		if (! defined pagetype($f) &&
+		    $f=~m/^\Q$loc\E[^\/]+$/) {
+			$attachments{$f}={
+				$std->($f, $IkiWiki::pagemtime{$f}, displaytime($IkiWiki::pagemtime{$f}), (stat($f))[7]),
+				link => htmllink($page, $page, $f, noimageinline => 1),
+			};
 		}
-		return IkiWiki::FailReason->new("file seems to contain a virus ($reason)");
-	}
-	else {
-		return IkiWiki::SuccessReason->new("file seems virusfree ($reason)");
-	}
-} #}}}
-
-sub match_ispage ($$;@) { #{{{
-	my $filename=shift;
-
-	if (defined IkiWiki::pagetype($filename)) {
-		return IkiWiki::SuccessReason->new("file is a wiki page");
-	}
-	else {
-		return IkiWiki::FailReason->new("file is not a wiki page");
 	}
-} #}}}
-
-sub match_user ($$;@) { #{{{
-	shift;
-	my $user=shift;
-	my %params=@_;
 	
-	if (! exists $params{user}) {
-		return IkiWiki::FailReason->new("no user specified");
+	# attachments in holding directory
+	my $dir=attachment_holding_location($page);
+	my $heldmsg=gettext("this attachment is not yet saved");
+	foreach my $file (glob("$dir/*")) {
+		$file=Encode::decode_utf8($file);
+		next unless -f $file;
+		my $base=IkiWiki::basename($file);
+		my $f=$loc.$base;
+		$attachments{$f}={
+			$std->($f, (stat($file))[9]*2, stored_msg(), (stat(_))[7]),
+			link => $base,
+		}
 	}
 
-	if (defined $params{user} && lc $params{user} eq lc $user) {
-		return IkiWiki::SuccessReason->new("user is $user");
-	}
-	elsif (! defined $params{user}) {
-		return IkiWiki::FailReason->new("not logged in");
-	}
-	else {
-		return IkiWiki::FailReason->new("user is $params{user}, not $user");
-	}
-} #}}}
+	# Sort newer attachments to the end of the list.
+	return sort { $a->{mtime_raw} <=> $b->{mtime_raw} || $a->{link} cmp $b->{link} }
+		values %attachments;
+}
 
-sub match_ip ($$;@) { #{{{
-	shift;
-	my $ip=shift;
-	my %params=@_;
-	
-	if (! exists $params{ip}) {
-		return IkiWiki::FailReason->new("no IP specified");
-	}
+sub stored_msg {
+	gettext("just uploaded");
+}
 
-	if (defined $params{ip} && lc $params{ip} eq lc $ip) {
-		return IkiWiki::SuccessReason->new("IP is $ip");
-	}
-	else {
-		return IkiWiki::FailReason->new("IP is $params{ip}, not $ip");
+sub json_response ($$$$) {
+	my $q=shift;
+	my $form=shift;
+	my $filename=shift;
+	my $stored_msg=shift;
+
+	if (! defined $form->submitted ||
+	    $form->submitted ne "Upload Attachment") {
+		eval q{use JSON};
+		error $@ if $@;
+		print "Content-type: text/html\n\n";
+		my $size=-s $filename;
+		print to_json([
+			{
+				name => IkiWiki::basename($filename),
+				size => $size,
+				humansize => IkiWiki::Plugin::filecheck::humansize($size),
+				stored_msg => $stored_msg,
+				
+			}
+		]);
+		exit 0;
 	}
-} #}}}
+}
 
 1