X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/2f3a279f68dcf8c1566d82419fc7257e162ee345..37245a9988d22938a8f13fb89cecc5c23bbed419:/IkiWiki/Plugin/attachment.pm?ds=inline

diff --git a/IkiWiki/Plugin/attachment.pm b/IkiWiki/Plugin/attachment.pm
index cb762e453..720078be1 100644
--- a/IkiWiki/Plugin/attachment.pm
+++ b/IkiWiki/Plugin/attachment.pm
@@ -11,6 +11,40 @@ sub import { #{{{
 	hook(type => "formbuilder", id => "attachment", call => \&formbuilder);
 } # }}}
 
+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) {
+		error(sprintf(gettext("there is already a page named %s"), $dest));
+	}
+
+	# Use a special pagespec to test that the attachment is valid.
+	my $allowed=1;
+	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 () { #{{{
 	$config{cgi_disable_uploads}=0;
 } #}}}
@@ -21,6 +55,8 @@ sub formbuilder_setup (@) { #{{{
 	my $q=$params{cgi};
 
 	if (defined $form->field("do") && $form->field("do") eq "edit") {
+		# Add attachment field, set type to multipart.
+		$form->enctype(&CGI::MULTIPART);
 		$form->field(name => 'attachment', type => 'file');
 		# These buttons are not put in the usual place, so
 		# are not added to the normal formbuilder button list.
@@ -34,7 +70,8 @@ sub formbuilder_setup (@) { #{{{
 		# Start with the attachments interface toggled invisible,
 		# but if it was used, keep it open.
 		if ($form->submitted ne "Upload Attachment" &&
-		    ! length $q->param("attachment_select")) {
+		    (! defined $q->param("attachment_select") ||
+		    ! length $q->param("attachment_select"))) {
 			$form->tmpl_param("attachments-class" => "toggleable");
 		}
 		else {
@@ -86,8 +123,20 @@ sub formbuilder (@) { #{{{
 		# 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);
-		
-		$filename=IkiWiki::titlepage(
+		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($filename)));
@@ -98,25 +147,8 @@ sub formbuilder (@) { #{{{
 		# Check that the user is allowed to edit a page with the
 		# name of the attachment.
 		IkiWiki::check_canedit($filename, $q, $session, 1);
-		
-		# Use a special pagespec to test that the attachment is valid.
-		my $allowed=1;
-		foreach my $admin (@{$config{adminuser}}) {
-			my $allowed_attachments=IkiWiki::userinfo_get($admin, "allowed_attachments");
-			if (defined $allowed_attachments &&
-			    length $allowed_attachments) {
-				$allowed=pagespec_match($filename,
-					$allowed_attachments,
-					file => $tempfile,
-					user => $session->param("name"),
-					ip => $ENV{REMOTE_ADDR},
-				);
-				last if $allowed;
-			}
-		}
-		if (! $allowed) {
-			error(gettext("attachment rejected")." ($allowed)");
-		}
+		# And that the attachment itself is acceptable.
+		check_canattach($session, $filename, $tempfile);
 
 		# Needed for fast_file_copy and for rendering below.
 		require IkiWiki::Render;
@@ -132,7 +164,14 @@ sub formbuilder (@) { #{{{
 		else {
 			my $fh=$q->upload('attachment');
 			if (! defined $fh || ! ref $fh) {
-				error("failed to get filehandle");
+				# 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, $config{srcdir}, undef, 1, sub {
@@ -154,8 +193,10 @@ sub formbuilder (@) { #{{{
 		IkiWiki::saveindex();
 	}
 	elsif ($form->submitted eq "Insert Links") {
+		my $page=quotemeta($q->param("page"));
 		my $add="";
 		foreach my $f ($q->param("attachment_select")) {
+			$f=~s/^$page\///;
 			$add.="[[$f]]\n";
 		}
 		$form->field(name => 'editcontent',
@@ -168,7 +209,7 @@ sub formbuilder (@) { #{{{
 	$form->tmpl_param("attachment_list" => [attachment_list($form->field('page'))]);
 } # }}}
 
-sub attachment_location ($) {
+sub attachment_location ($) { #{{{
 	my $page=shift;
 	
 	# Put the attachment in a subdir of the page it's attached
@@ -177,9 +218,9 @@ sub attachment_location ($) {
 	$page.="/" if length $page;
 	
 	return $page;
-}
+} #}}}
 
-sub attachment_list ($) {
+sub attachment_list ($) { #{{{
 	my $page=shift;
 	my $loc=attachment_location($page);
 
@@ -201,9 +242,9 @@ sub attachment_list ($) {
 	# 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
+my %units=( #{{{	# size in bytes
 	B		=> 1,
 	byte		=> 1,
 	KB		=> 2 ** 10,
@@ -235,7 +276,7 @@ my %units=(		# size in bytes
 	# 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;
@@ -364,6 +405,9 @@ sub match_virusfree ($$;@) { #{{{
 	waitpid $pid, 0;
 	$SIG{PIPE}="DEFAULT";
 	if ($sigpipe || $?) {
+		if (! length $reason) {
+			$reason="virus checker $IkiWiki::config{virus_checker}; failed with no output";
+		}
 		return IkiWiki::FailReason->new("file seems to contain a virus ($reason)");
 	}
 	else {
@@ -394,6 +438,9 @@ sub match_user ($$;@) { #{{{
 	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");
 	}