1 files changed, 33 insertions, 27 deletions

diff --git a/plugins/mod_httpserver.lua b/plugins/mod_httpserver.lua
index 55ac3c7a..f1f2150d 100644
--- a/plugins/mod_httpserver.lua
+++ b/plugins/mod_httpserver.lua
@@ -11,45 +11,51 @@ local httpserver = require "net.httpserver";
 
 local open = io.open;
 local t_concat = table.concat;
-local check_http_path;
 
 local http_base = "www_files";
 
-local response_403 = { status = "403 Forbidden", body = "<h1>Invalid URL</h1>Sorry, we couldn't find what you were looking for :(" };
+local response_400 = { status = "400 Bad Request", body = "<h1>Bad Request</h1>Sorry, we didn't understand your request :(" };
 local response_404 = { status = "404 Not Found", body = "<h1>Page Not Found</h1>Sorry, we couldn't find what you were looking for :(" };
 
-local http_path = { http_base };
-local function handle_request(method, body, request)
-	local path = check_http_path(request.url.path:gsub("^/[^/]+%.*", ""));
-	if not path then
-		return response_403;
+local function preprocess_path(path)
+	if path:sub(1,1) ~= "/" then
+		path = "/"..path;
 	end
-	http_path[2] = path;
-	local f, err = open(t_concat(http_path), "r");
-	if not f then return response_404; end
-	local data = f:read("*a");
-	f:close();
-	return data;
-end
-
-local ports = config.get(module.host, "core", "http_ports") or { 5280 };
-httpserver.new_from_config(ports, "files", handle_request);
-
-function check_http_path(url)
-	if url:sub(1,1) ~= "/" then
-		url = "/"..url;
-	end
-	
 	local level = 0;
-	for part in url:gmatch("%/([^/]+)") do
-		if part == ".." then
+	for component in path:gmatch("([^/]+)/") do
+		if component == ".." then
 			level = level - 1;
-		elseif part ~= "." then
+		elseif component ~= "." then
 			level = level + 1;
 		end
 		if level < 0 then
 			return nil;
 		end
 	end
-	return url;
+	return path;
 end
+
+function serve_file(path)
+	local f, err = open(http_base..path, "r");
+	if not f then return response_404; end
+	local data = f:read("*a");
+	f:close();
+	return data;
+end
+
+local function handle_file_request(method, body, request)
+	local path = preprocess_path(request.url.path);
+	if not path then return response_400; end
+	path = path:gsub("^/[^/]+", ""); -- Strip /files/
+	return serve_file(path);
+end
+
+local function handle_default_request(method, body, request)
+	local path = preprocess_path(request.url.path);
+	if not path then return response_400; end
+	return serve_file(path);
+end
+
+local ports = config.get(module.host, "core", "http_ports") or { 5280 };
+httpserver.set_default_handler(handle_default_request);
+httpserver.new_from_config(ports, "files", handle_file_request);