X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/e5348d2d70cf7a56f59f019b4adfbd4324212305..811b8726dbd6e274f969738c4e19f0b3dc3dae92:/IkiWiki/CGI.pm

diff --git a/IkiWiki/CGI.pm b/IkiWiki/CGI.pm
index 5d21d0674..c785e31de 100644
--- a/IkiWiki/CGI.pm
+++ b/IkiWiki/CGI.pm
@@ -20,6 +20,24 @@ sub printheader ($) { #{{{
 	}
 
 } #}}}
+	
+sub showform ($$$$) { #{{{
+	my $form=shift;
+	my $buttons=shift;
+	my $session=shift;
+	my $cgi=shift;
+
+	if (exists $hooks{formbuilder}) {
+		run_hooks(formbuilder => sub {
+			shift->(form => $form, cgi => $cgi, session => $session,
+				buttons => $buttons);
+		});
+	}
+	else {
+		printheader($session);
+		print misctemplate($form->title, $form->render(submit => $buttons));
+	}
+}
 
 sub redirect ($$) { #{{{
 	my $q=shift;
@@ -33,26 +51,25 @@ sub redirect ($$) { #{{{
 	}
 } #}}}
 
-sub page_locked ($$;$) { #{{{
+sub check_canedit ($$$;$) { #{{{
 	my $page=shift;
+	my $q=shift;
 	my $session=shift;
 	my $nonfatal=shift;
 	
-	my $user=$session->param("name");
-	return if defined $user && is_admin($user);
-
-	foreach my $admin (@{$config{adminuser}}) {
-		my $locked_pages=userinfo_get($admin, "locked_pages");
-		if (pagespec_match($page, userinfo_get($admin, "locked_pages"))) {
-			return 1 if $nonfatal;
-
-			error(sprintf(gettext("%s is locked by %s and cannot be edited"),
-				htmllink("", "", $page, 1),
-				userlink($admin)));
+	my $canedit;
+	run_hooks(canedit => sub {
+		return if defined $canedit;
+		my $ret=shift->($page, $q, $session);
+		if (defined $ret && $ret eq "") {
+			$canedit=1;
 		}
-	}
-
-	return 0;
+		elsif (defined $ret) {
+			$canedit=0;
+			error($ret) unless $nonfatal;
+		}
+	});
+	return $canedit;
 } #}}}
 
 sub decode_form_utf8 ($) { #{{{
@@ -90,7 +107,9 @@ sub cgi_recentchanges ($) { #{{{
 		delete @{$change->{pages}}[10 .. @{$change->{pages}}] if $is_excess;
 		$change->{pages} = [
 			map {
-				$_->{link} = htmllink("", "", $_->{page}, 1);
+				$_->{link} = htmllink("", "", $_->{page},
+					noimageinline => 1,
+					linktext => pagetitle($_->{page}));
 				$_;
 			} @{$change->{pages}}
 		];
@@ -111,6 +130,23 @@ sub cgi_recentchanges ($) { #{{{
 	print $q->header(-charset => 'utf-8'), $template->output;
 } #}}}
 
+# Check if the user is signed in. If not, redirect to the signin form and
+# save their place to return to later.
+sub needsignin ($$) { #{{{
+	my $q=shift;
+	my $session=shift;
+
+	if (! defined $session->param("name") ||
+	    ! userinfo_get($session->param("name"), "regdate")) {
+	    	if (! defined $session->param("postsignin")) {
+			$session->param(postsignin => $ENV{QUERY_STRING});
+		}
+		cgi_signin($q, $session);
+		cgi_savesession($session);
+		exit;
+	}
+} #}}}	
+
 sub cgi_signin ($$) { #{{{
 	my $q=shift;
 	my $session=shift;
@@ -119,7 +155,7 @@ sub cgi_signin ($$) { #{{{
 	error($@) if $@;
 	my $form = CGI::FormBuilder->new(
 		title => "signin",
-		header => 1,
+		name => "signin",
 		charset => "utf-8",
 		method => 'POST',
 		required => 'NONE',
@@ -127,46 +163,37 @@ sub cgi_signin ($$) { #{{{
 		params => $q,
 		action => $config{cgiurl},
 		header => 0,
-		template => (-e "$config{templatedir}/signin.tmpl" ?
-			     {template_params("signin.tmpl")} : ""),
+		template => {type => 'div'},
 		stylesheet => baseurl()."style.css",
 	);
 	my $buttons=["Login"];
 	
-	$form->field(name => "do", type => "hidden");
-	
 	if ($q->param("do") ne "signin" && !$form->submitted) {
 		$form->text(gettext("You need to log in first."));
 	}
+	$form->field(name => "do", type => "hidden", value => "signin",
+		force => 1);
+	
+	decode_form_utf8($form);
 	
 	run_hooks(formbuilder_setup => sub {
-		shift->(form => $form, cgi => $q, session => $session);
+		shift->(form => $form, cgi => $q, session => $session,
+		        buttons => $buttons);
 	});
-	
-	decode_form_utf8($form);
 
-	if (exists $hooks{formbuilder}) {
-		run_hooks(formbuilder => sub {
-			shift->(form => $form, cgi => $q, session => $session,
-				buttons => $buttons);
-		});
-	}
-	else {
-		if ($form->submitted) {
-			$form->validate;
-		}
-		printheader($session);
-		print misctemplate($form->title, $form->render(submit => $buttons));
+	if ($form->submitted) {
+		$form->validate;
 	}
+
+	showform($form, $buttons, $session, $q);
 } #}}}
 
 sub cgi_postsignin ($$) { #{{{
 	my $q=shift;
 	my $session=shift;
-
+	
 	# Continue with whatever was being done before the signin process.
-	if (defined $q->param("do") && $q->param("do") ne "signin" &&
-	    defined $session->param("postsignin")) {
+	if (defined $session->param("postsignin")) {
 		my $postsignin=CGI->new($session->param("postsignin"));
 		$session->clear("postsignin");
 		cgi($postsignin, $session);
@@ -174,6 +201,8 @@ sub cgi_postsignin ($$) { #{{{
 		exit;
 	}
 	else {
+		# This can occur, for example, if a user went to the signin
+		# url via a bookmark.
 		redirect($q, $config{url});
 	}
 } #}}}
@@ -182,10 +211,13 @@ sub cgi_prefs ($$) { #{{{
 	my $q=shift;
 	my $session=shift;
 
+	needsignin($q, $session);
+
 	eval q{use CGI::FormBuilder};
 	error($@) if $@;
 	my $form = CGI::FormBuilder->new(
 		title => "preferences",
+		name => "preferences",
 		header => 0,
 		charset => "utf-8",
 		method => 'POST',
@@ -196,27 +228,33 @@ sub cgi_prefs ($$) { #{{{
 		javascript => 0,
 		params => $q,
 		action => $config{cgiurl},
-		template => (-e "$config{templatedir}/prefs.tmpl" ?
-			     {template_params("prefs.tmpl")} : ""),
+		template => {type => 'div'},
 		stylesheet => baseurl()."style.css",
+		fieldsets => [
+			[login => gettext("Login")],
+			[preferences => gettext("Preferences")],
+			[admin => gettext("Admin")]
+		],
 	);
 	my $buttons=["Save Preferences", "Logout", "Cancel"];
 
+	decode_form_utf8($form);
+
 	run_hooks(formbuilder_setup => sub {
-		shift->(form => $form, cgi => $q, session => $session);
+		shift->(form => $form, cgi => $q, session => $session,
+		        buttons => $buttons);
 	});
 	
 	$form->field(name => "do", type => "hidden");
-	$form->field(name => "email", size => 50);
+	$form->field(name => "email", size => 50, fieldset => "preferences");
 	$form->field(name => "subscriptions", size => 50,
-		comment => "(".htmllink("", "", "PageSpec", 1).")");
-	$form->field(name => "locked_pages", size => 50,
-		comment => "(".htmllink("", "", "PageSpec", 1).")");
-	$form->field(name => "banned_users", size => 50);
+		fieldset => "preferences",
+		comment => "(".htmllink("", "", "PageSpec", noimageinline => 1).")");
+	$form->field(name => "banned_users", size => 50,
+		fieldset => "admin");
 	
 	my $user_name=$session->param("name");
 	if (! is_admin($user_name)) {
-		$form->field(name => "locked_pages", type => "hidden");
 		$form->field(name => "banned_users", type => "hidden");
 	}
 
@@ -225,16 +263,12 @@ sub cgi_prefs ($$) { #{{{
 			value => userinfo_get($user_name, "email"));
 		$form->field(name => "subscriptions", force => 1,
 			value => userinfo_get($user_name, "subscriptions"));
-		$form->field(name => "locked_pages", force => 1,
-			value => userinfo_get($user_name, "locked_pages"));
 		if (is_admin($user_name)) {
 			$form->field(name => "banned_users", force => 1,
 				value => join(" ", get_banned_users()));
 		}
 	}
 	
-	decode_form_utf8($form);
-	
 	if ($form->submitted eq 'Logout') {
 		$session->delete();
 		redirect($q, $config{url});
@@ -245,28 +279,22 @@ sub cgi_prefs ($$) { #{{{
 		return;
 	}
 	elsif ($form->submitted eq 'Save Preferences' && $form->validate) {
-		foreach my $field (qw(email subscriptions locked_pages)) {
+		foreach my $field (qw(email subscriptions)) {
 			if (defined $form->field($field) && length $form->field($field)) {
-				userinfo_set($user_name, $field, $form->field($field)) || error("failed to set $field");
+				userinfo_set($user_name, $field, $form->field($field)) ||
+					error("failed to set $field");
 			}
 		}
 		if (is_admin($user_name)) {
 			set_banned_users(grep { ! is_admin($_) }
-					split(' ', $form->field("banned_users")));
+					split(' ',
+						$form->field("banned_users"))) ||
+				error("failed saving changes");
 		}
 		$form->text(gettext("Preferences saved."));
 	}
 	
-	if (exists $hooks{formbuilder}) {
-		run_hooks(formbuilder => sub {
-			shift->(form => $form, cgi => $q, session => $session,
-				buttons => $buttons);
-		});
-	}
-	else {
-		printheader($session);
-		print misctemplate($form->title, $form->render(submit => $buttons));
-	}
+	showform($form, $buttons, $session, $q);
 } #}}}
 
 sub cgi_editpage ($$) { #{{{
@@ -279,8 +307,8 @@ sub cgi_editpage ($$) { #{{{
 	eval q{use CGI::FormBuilder};
 	error($@) if $@;
 	my $form = CGI::FormBuilder->new(
+		title => "editpage",
 		fields => \@fields,
-		header => 1,
 		charset => "utf-8",
 		method => 'POST',
 		validate => {
@@ -290,22 +318,25 @@ sub cgi_editpage ($$) { #{{{
 		javascript => 0,
 		params => $q,
 		action => $config{cgiurl},
+		header => 0,
 		table => 0,
-		template => (-e "$config{templatedir}/editpage.tmpl" ?
-				{template_params("editpage.tmpl")} : ""),
+		template => scalar template_params("editpage.tmpl"),
+		wikiname => $config{wikiname},
 	);
 	
+	decode_form_utf8($form);
+	
 	run_hooks(formbuilder_setup => sub {
-		shift->(form => $form, cgi => $q, session => $session);
+		shift->(form => $form, cgi => $q, session => $session,
+			buttons => \@buttons);
 	});
 	
-	decode_form_utf8($form);
-	
 	# This untaint is safe because titlepage removes any problematic
 	# characters.
 	my ($page)=$form->field('page');
 	$page=titlepage(possibly_foolish_untaint($page));
-	if (! defined $page || ! length $page || file_pruned($page, $config{srcdir}) || $page=~/^\//) {
+	if (! defined $page || ! length $page ||
+	    file_pruned($page, $config{srcdir}) || $page=~/^\//) {
 		error("bad page name");
 	}
 	
@@ -316,9 +347,16 @@ sub cgi_editpage ($$) { #{{{
 	
 	my $file;
 	my $type;
-	if (exists $pagesources{$page}) {
+	if (exists $pagesources{$page} && $form->field("do") ne "create") {
 		$file=$pagesources{$page};
 		$type=pagetype($file);
+		if (! defined $type) {
+			error(sprintf(gettext("%s is not an editable page"), $page));
+		}
+		if (! $form->submitted) {
+			$form->field(name => "rcsinfo",
+				value => rcs_prepedit($file), force => 1);
+		}
 	}
 	else {
 		$type=$form->param('type');
@@ -331,18 +369,16 @@ sub cgi_editpage ($$) { #{{{
 		}
 		$type=$config{default_pageext} unless defined $type;
 		$file=$page.".".$type;
-	}
-
-	my $newfile=0;
-	if (! -e "$config{srcdir}/$file") {
-		$newfile=1;
+		if (! $form->submitted) {
+			$form->field(name => "rcsinfo", value => "", force => 1);
+		}
 	}
 
 	$form->field(name => "do", type => 'hidden');
 	$form->field(name => "from", type => 'hidden');
 	$form->field(name => "rcsinfo", type => 'hidden');
 	$form->field(name => "subpage", type => 'hidden');
-	$form->field(name => "page", value => $page, force => 1);
+	$form->field(name => "page", value => pagetitle($page, 1), force => 1);
 	$form->field(name => "type", value => $type, force => 1);
 	$form->field(name => "comments", type => "text", size => 80);
 	$form->field(name => "editcontent", type => "textarea", rows => 20,
@@ -350,18 +386,14 @@ sub cgi_editpage ($$) { #{{{
 	$form->tmpl_param("can_commit", $config{rcs});
 	$form->tmpl_param("indexlink", indexlink());
 	$form->tmpl_param("helponformattinglink",
-		htmllink("", "", "HelpOnFormatting", 1));
+		htmllink("", "", "HelpOnFormatting", noimageinline => 1));
 	$form->tmpl_param("baseurl", baseurl());
-	if (! $form->submitted) {
-		$form->field(name => "rcsinfo", value => rcs_prepedit($file),
-			force => 1);
-	}
 	
 	if ($form->submitted eq "Cancel") {
-		if ($newfile && defined $from) {
+		if ($form->field("do") eq "create" && defined $from) {
 			redirect($q, "$config{url}/".htmlpage($from));
 		}
-		elsif ($newfile) {
+		elsif ($form->field("do") eq "create") {
 			redirect($q, $config{url});
 		}
 		else {
@@ -371,25 +403,26 @@ sub cgi_editpage ($$) { #{{{
 	}
 	elsif ($form->submitted eq "Preview") {
 		my $content=$form->field('editcontent');
-		my $comments=$form->field('comments');
-		$form->field(name => "editcontent",
-				value => $content, force => 1);
-		$form->field(name => "comments",
-				value => $comments, force => 1);
-		$config{rss}=$config{atom}=0; # avoid preview writing a feed!
+		run_hooks(editcontent => sub {
+			$content=shift->(
+				content => $content,
+				page => $page,
+				cgi => $q,
+				session => $session,
+			);
+		});
 		$form->tmpl_param("page_preview",
 			htmlize($page, $type,
 			linkify($page, "",
 			preprocess($page, $page,
-			filter($page, $content)))));
+			filter($page, $page, $content), 0, 1))));
 	}
-	else {
+	elsif ($form->submitted eq "Save Page") {
 		$form->tmpl_param("page_preview", "");
 	}
 	$form->tmpl_param("page_conflict", "");
 	
-	if (! $form->submitted || $form->submitted eq "Preview" || 
-	    ! $form->validate) {
+	if ($form->submitted ne "Save Page" || ! $form->validate) {
 		if ($form->field("do") eq "create") {
 			my @page_locs;
 			my $best_loc;
@@ -423,16 +456,22 @@ sub cgi_editpage ($$) { #{{{
 				if length $config{userdir};
 
 			@page_locs = grep {
-				! exists $pagecase{lc $_} &&
-				! page_locked($_, $session, 1)
+				! exists $pagecase{lc $_}
 			} @page_locs;
-			
 			if (! @page_locs) {
 				# hmm, someone else made the page in the
 				# meantime?
 				redirect($q, "$config{url}/".htmlpage($page));
 				return;
 			}
+
+			my @editable_locs = grep {
+				check_canedit($_, $q, $session, 1)
+			} @page_locs;
+			if (! @editable_locs) {
+				# let it throw an error this time
+				map { check_canedit($_, $q, $session) } @page_locs;
+			}
 			
 			my @page_types;
 			if (exists $hooks{htmlize}) {
@@ -441,13 +480,15 @@ sub cgi_editpage ($$) { #{{{
 			
 			$form->tmpl_param("page_select", 1);
 			$form->field(name => "page", type => 'select',
-				options => \@page_locs, value => $best_loc);
+				options => [ map { pagetitle($_, 1) } @editable_locs ],
+				value => pagetitle($best_loc, 1));
 			$form->field(name => "type", type => 'select',
 				options => \@page_types);
 			$form->title(sprintf(gettext("creating %s"), pagetitle($page)));
+			
 		}
 		elsif ($form->field("do") eq "edit") {
-			page_locked($page, $session);
+			check_canedit($page, $q, $session);
 			if (! defined $form->field('editcontent') || 
 			    ! length $form->field('editcontent')) {
 				my $content="";
@@ -464,18 +505,70 @@ sub cgi_editpage ($$) { #{{{
 			$form->title(sprintf(gettext("editing %s"), pagetitle($page)));
 		}
 		
-		print $form->render(submit => \@buttons);
+		showform($form, \@buttons, $session, $q);
 	}
 	else {
 		# save page
-		page_locked($page, $session);
+		check_canedit($page, $q, $session);
+
+		my $exists=-e "$config{srcdir}/$file";
+
+		if ($form->field("do") ne "create" && ! $exists &&
+		    ! eval { srcfile($file) }) {
+			$form->tmpl_param("page_gone", 1);
+			$form->field(name => "do", value => "create", force => 1);
+			$form->tmpl_param("page_select", 0);
+			$form->field(name => "page", type => 'hidden');
+			$form->field(name => "type", type => 'hidden');
+			$form->title(sprintf(gettext("editing %s"), $page));
+			showform($form, \@buttons, $session, $q);
+			return;
+		}
+		elsif ($form->field("do") eq "create" && $exists) {
+			$form->tmpl_param("creation_conflict", 1);
+			$form->field(name => "do", value => "edit", force => 1);
+			$form->tmpl_param("page_select", 0);
+			$form->field(name => "page", type => 'hidden');
+			$form->field(name => "type", type => 'hidden');
+			$form->title(sprintf(gettext("editing %s"), $page));
+			$form->field("editcontent", 
+				value => readfile("$config{srcdir}/$file").
+				         "\n\n\n".$form->field("editcontent"),
+				force => 1);
+			showform($form, \@buttons, $session, $q);
+			return;
+		}
 		
 		my $content=$form->field('editcontent');
-
+		run_hooks(editcontent => sub {
+			$content=shift->(
+				content => $content,
+				page => $page,
+				cgi => $q,
+				session => $session,
+			);
+		});
 		$content=~s/\r\n/\n/g;
 		$content=~s/\r/\n/g;
-		writefile($file, $config{srcdir}, $content);
+
+		$config{cgi}=0; # avoid cgi error message
+		eval { writefile($file, $config{srcdir}, $content) };
+		$config{cgi}=1;
+		if ($@) {
+			$form->field(name => "rcsinfo", value => rcs_prepedit($file),
+				force => 1);
+			$form->tmpl_param("failed_save", 1);
+			$form->tmpl_param("error_message", $@);
+			$form->field("editcontent", value => $content, force => 1);
+			$form->tmpl_param("page_select", 0);
+			$form->field(name => "page", type => 'hidden');
+			$form->field(name => "type", type => 'hidden');
+			$form->title(sprintf(gettext("editing %s"), $page));
+			showform($form, \@buttons, $session, $q);
+			return;
+		}
 		
+		my $conflict;
 		if ($config{rcs}) {
 			my $message="";
 			if (defined $form->field('comments') &&
@@ -483,41 +576,46 @@ sub cgi_editpage ($$) { #{{{
 				$message=$form->field('comments');
 			}
 			
-			if ($newfile) {
+			if (! $exists) {
 				rcs_add($file);
 			}
-			# prevent deadlock with post-commit hook
-			unlockwiki();
-			# presumably the commit will trigger an update
-			# of the wiki
-			my $conflict=rcs_commit($file, $message,
+
+			# Prevent deadlock with post-commit hook by
+			# signaling to it that it should not try to
+			# do anything (except send commit mails).
+			disable_commit_hook();
+			$conflict=rcs_commit($file, $message,
 				$form->field("rcsinfo"),
 				$session->param("name"), $ENV{REMOTE_ADDR});
+			enable_commit_hook();
+			rcs_update();
+		}
 		
-			if (defined $conflict) {
-				$form->field(name => "rcsinfo", value => rcs_prepedit($file),
-					force => 1);
-				$form->tmpl_param("page_conflict", 1);
-				$form->field("editcontent", value => $conflict, force => 1);
-				$form->field(name => "comments", value => $form->field('comments'), force => 1);
-				$form->field("do", "edit)");
-				$form->tmpl_param("page_select", 0);
-				$form->field(name => "page", type => 'hidden');
-				$form->field(name => "type", type => 'hidden');
-				$form->title(sprintf(gettext("editing %s"), $page));
-				print $form->render(submit => \@buttons);
-				return;
-			}
+		# Refresh even if there was a conflict, since other changes
+		# may have been committed while the post-commit hook was
+		# disabled.
+		require IkiWiki::Render;
+		refresh();
+		saveindex();
+
+		if (defined $conflict) {
+			$form->field(name => "rcsinfo", value => rcs_prepedit($file),
+				force => 1);
+			$form->tmpl_param("page_conflict", 1);
+			$form->field("editcontent", value => $conflict, force => 1);
+			$form->field("do", "edit", force => 1);
+			$form->tmpl_param("page_select", 0);
+			$form->field(name => "page", type => 'hidden');
+			$form->field(name => "type", type => 'hidden');
+			$form->title(sprintf(gettext("editing %s"), $page));
+			showform($form, \@buttons, $session, $q);
+			return;
 		}
 		else {
-			require IkiWiki::Render;
-			refresh();
-			saveindex();
+			# The trailing question mark tries to avoid broken
+			# caches and get the most recent version of the page.
+			redirect($q, "$config{url}/".htmlpage($page)."?updated");
 		}
-		
-		# The trailing question mark tries to avoid broken
-		# caches and get the most recent version of the page.
-		redirect($q, "$config{url}/".htmlpage($page)."?updated");
 	}
 } #}}}
 
@@ -542,7 +640,7 @@ sub cgi_savesession ($) { #{{{
 	my $oldmask=umask(077);
 	$session->flush;
 	umask($oldmask);
-}
+} #}}}
 
 sub cgi (;$$) { #{{{
 	my $q=shift;
@@ -573,9 +671,6 @@ sub cgi (;$$) { #{{{
 		cgi_recentchanges($q);
 		return;
 	}
-	elsif ($do eq 'hyperestraier') {
-		cgi_hyperestraier();
-	}
 
 	# Need to lock the wiki before getting a session.
 	lockwiki();
@@ -597,56 +692,37 @@ sub cgi (;$$) { #{{{
 					email => "",
 					password => "",
 					regdate => time,
-				});
+				}) || error("failed adding user");
 			}
 		}
 	}
+	
+	if (defined $session->param("name") &&
+	    userinfo_get($session->param("name"), "banned")) {
+		print $q->header(-status => "403 Forbidden");
+		$session->delete();
+		print gettext("You are banned.");
+		cgi_savesession($session);
+	}
 
-	# Everything below this point needs the user to be signed in.
-	if (((! $config{anonok} || $do eq 'prefs') &&
-	     (! defined $session->param("name") ||
-	     ! userinfo_get($session->param("name"), "regdate")))
-            || $do eq 'signin') {
-	    	if ($do ne 'signin' && ! defined $session->param("postsignin")) {
-			$session->param(postsignin => $ENV{QUERY_STRING});
-		}
+	run_hooks(sessioncgi => sub { shift->($q, $session) });
+
+	if ($do eq 'signin') {
 		cgi_signin($q, $session);
 		cgi_savesession($session);
-		return;
 	}
 	elsif (defined $session->param("postsignin")) {
 		cgi_postsignin($q, $session);
 	}
-
-	if (defined $session->param("name") && userinfo_get($session->param("name"), "banned")) {
-		print $q->header(-status => "403 Forbidden");
-		$session->delete();
-		print gettext("You are banned.");
-		cgi_savesession($session);
-		exit;
-	}
-	
-	if ($do eq 'create' || $do eq 'edit') {
-		cgi_editpage($q, $session);
-	}
 	elsif ($do eq 'prefs') {
 		cgi_prefs($q, $session);
 	}
-	elsif ($do eq 'blog') {
-		my $page=titlepage(decode_utf8($q->param('title')));
-		$page=~s/(\/)/"__".ord($1)."__"/eg; # escape slashes too
-		# if the page already exists, munge it to be unique
-		my $from=$q->param('from');
-		my $add="";
-		while (exists $pagecase{lc "$from/$page$add"}) {
-			$add=1 unless length $add;
-			$add++;
-		}
-		$q->param('page', $page.$add);
-		# now run same as create
-		$q->param('do', 'create');
+	elsif ($do eq 'create' || $do eq 'edit') {
 		cgi_editpage($q, $session);
 	}
+	elsif ($do eq 'postsignin') {
+		error(gettext("login failed, perhaps you need to turn on cookies?"));
+	}
 	else {
 		error("unknown do parameter");
 	}
@@ -676,7 +752,7 @@ sub userlink ($) { #{{{
 	else {
 		return htmllink("", "", escapeHTML(
 			length $config{userdir} ? $config{userdir}."/".$user : $user
-		), 1);
+		), noimageinline => 1);
 	}
 } #}}}