libs/cbi: Catch errors while creating named sections

libs/cbi/luasrc/cbi.lua

@@ -566,7 +566,7 @@ function AbstractSection.create(self, section)
 	local stat
 
 	if section then
-		stat = self.map:set(section, nil, self.sectiontype)
+		stat = section:match("^%w+$") and self.map:set(section, nil, self.sectiontype)
 	else
 		section = self.map:add(self.sectiontype)
 		stat = section
@@ -795,6 +795,9 @@ function TypedSection.parse(self, novld)
 
 				if name and #name > 0 then
 					created = self:create(name) and name
+					if not created then
+						self.invalid_cts = true
+					end
 				end
 			end
 		end

libs/cbi/luasrc/view/cbi/tblsection.htm

@@ -113,8 +113,12 @@ end
 						<% if self.anonymous then %>
 							<input class="cbi-button cbi-button-add" type="submit" value="<%:cbi_add%>" name="cbi.cts.<%=self.config%>.<%=self.sectiontype%>" title="<%:cbi_add%>" />
 						<% else %>
+							<% if self.invalid_cts then -%><div class="cbi-section-error"><% end %>
 							<input type="text" class="cbi-section-create-name" name="cbi.cts.<%=self.config%>.<%=self.sectiontype%>" />
 							<input class="cbi-button cbi-button-add" type="submit" value="<%:cbi_add%>" title="<%:cbi_add%>" />
+							<% if self.invalid_cts then -%>
+								<br /><%:cbi_invalid%></div>
+							<%- end %>
 						<% end %>
 					</div>
 				</td>

libs/cbi/luasrc/view/cbi/tsection.htm

@@ -45,8 +45,12 @@ $Id$
 			<% if self.anonymous then -%>
 				<input type="submit" class="cbi-button cbi-button-add" name="cbi.cts.<%=self.config%>.<%=self.sectiontype%>" value="<%:cbi_add%>" />
 			<%- else -%>
+				<% if self.invalid_cts then -%><div class="cbi-section-error"><% end %>
 				<input type="text" class="cbi-section-create-name" name="cbi.cts.<%=self.config%>.<%=self.sectiontype%>" />
 				<input type="submit" class="cbi-button cbi-button-add" value="<%:cbi_add%>" />
+				<% if self.invalid_cts then -%>
+					<br /><%:cbi_invalid%></div>
+				<%- end %>
 			<%- end %>
 		</div>
 	<%- end %>

modules/admin-full/luasrc/model/cbi/admin_network/network.lua

@@ -33,6 +33,8 @@ end
 function s.create(self, section)
 	if TypedSection.create(self, section) then
 		created = section
+	else
+		self.invalid_cts = true
 	end
 end