X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/d69fdf64455eb343160bca73443e62e550b3c052..68869d664b978b063c9181d024edb34a63306c33:/IkiWiki/Plugin/editpage.pm

diff --git a/IkiWiki/Plugin/editpage.pm b/IkiWiki/Plugin/editpage.pm
index 91d125a5c..480e82804 100644
--- a/IkiWiki/Plugin/editpage.pm
+++ b/IkiWiki/Plugin/editpage.pm
@@ -78,34 +78,44 @@ sub check_canedit ($$$;$) {
 			}
 		}
 	});
-	return $canedit;
+	return defined $canedit ? $canedit : 1;
 }
 
-sub check_cansave ($$$$) {
-	my $page=shift;
-	my $content=shift;
-	my $q=shift;
-	my $session=shift;
+sub check_content (@) {
+	my %params=@_;
+	
+	return 1 if ! exists $hooks{checkcontent}; # optimisation
+
+	if (exists $pagesources{$params{page}}) {
+		my @diff;
+		my %old=map { $_ => 1 }
+		        split("\n", readfile(srcfile($pagesources{$params{page}})));
+		foreach my $line (split("\n", $params{content})) {
+			push @diff, $line if ! exists $old{$_};
+		}
+		$params{diff}=join("\n", @diff);
+	}
 
-	my $cansave;
-	run_hooks(cansave => sub {
-		return if defined $cansave;
-		my $ret=shift->($page, $content, $q, $session);
+	my $ok;
+	run_hooks(checkcontent => sub {
+		return if defined $ok;
+		my $ret=shift->(%params);
 		if (defined $ret) {
 			if ($ret eq "") {
-				$cansave=1;
+				$ok=1;
 			}
 			elsif (ref $ret eq 'CODE') {
-				$ret->();
-				$cansave=0;
+				$ret->() unless $params{nonfatal};
+				$ok=0;
 			}
-			else {
-				error($ret);
-				$cansave=0;
+			elsif (defined $ret) {
+				error($ret) unless $params{nonfatal};
+				$ok=0;
 			}
 		}
+
 	});
-	return $cansave;
+	return defined $ok ? $ok : 1;
 }
 
 sub cgi_editpage ($$) {
@@ -395,9 +405,17 @@ sub cgi_editpage ($$) {
 			showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl);
 			exit;
 		}
+			
+		my $message="";
+		if (defined $form->field('comments') &&
+		    length $form->field('comments')) {
+			$message=$form->field('comments');
+		}
 		
 		my $content=$form->field('editcontent');
-		check_cansave($page, $content, $q, $session);
+		check_content(content => $content, page => $page,
+			cgi => $q, session => $session,
+			subject => $message);
 		run_hooks(editcontent => sub {
 			$content=shift->(
 				content => $content,
@@ -431,12 +449,6 @@ sub cgi_editpage ($$) {
 		
 		my $conflict;
 		if ($config{rcs}) {
-			my $message="";
-			if (defined $form->field('comments') &&
-			    length $form->field('comments')) {
-				$message=$form->field('comments');
-			}
-			
 			if (! $exists) {
 				rcs_add($file);
 			}