Merge 0.11->trunk

1 files changed, 33 insertions, 3 deletions

diff --git a/plugins/mod_http.lua b/plugins/mod_http.lua
index a1d409bd..17ea27e1 100644
--- a/plugins/mod_http.lua
+++ b/plugins/mod_http.lua
@@ -14,6 +14,7 @@ local moduleapi = require "core.moduleapi";
 local url_parse = require "socket.url".parse;
 local url_build = require "socket.url".build;
 local normalize_path = require "util.http".normalize_path;
+local set = require "util.set";
 
 local server = require "net.http.server";
 
@@ -22,6 +23,11 @@ server.set_default_host(module:get_option_string("http_default_host"));
 server.set_option("body_size_limit", module:get_option_number("http_max_content_size"));
 server.set_option("buffer_size_limit", module:get_option_number("http_max_buffer_size"));
 
+-- CORS settigs
+local opt_methods = module:get_option_set("access_control_allow_methods", { "GET", "OPTIONS" });
+local opt_headers = module:get_option_set("access_control_allow_headers", { "Content-Type" });
+local opt_max_age = module:get_option_number("access_control_max_age", 2 * 60 * 60);
+
 local function get_http_event(host, app_path, key)
 	local method, path = key:match("^(%S+)%s+(.+)$");
 	if not method then -- No path specified, default to "" (base path)
@@ -83,6 +89,13 @@ function moduleapi.http_url(module, app_name, default_path)
 	return "http://disabled.invalid/";
 end
 
+local function apply_cors_headers(response, methods, headers, max_age, origin)
+	response.headers.access_control_allow_methods = tostring(methods);
+	response.headers.access_control_allow_headers = tostring(headers);
+	response.headers.access_control_max_age = tostring(max_age)
+	response.headers.access_control_allow_origin = origin or "*";
+end
+
 function module.add_host(module)
 	local host = module.host;
 	if host ~= "*" then
@@ -101,9 +114,27 @@ function module.add_host(module)
 		end
 		apps[app_name] = apps[app_name] or {};
 		local app_handlers = apps[app_name];
+
+		local app_methods = opt_methods;
+
+		local function cors_handler(event_data)
+			local request, response = event_data.request, event_data.response;
+			apply_cors_headers(response, app_methods, opt_headers, opt_max_age, request.headers.origin);
+		end
+
+		local function options_handler(event_data)
+			cors_handler(event_data);
+			return "";
+		end
+
 		for key, handler in pairs(event.item.route or {}) do
 			local event_name = get_http_event(host, app_path, key);
 			if event_name then
+				local method = event_name:match("^%S+");
+				if not app_methods:contains(method) then
+					app_methods = app_methods + set.new{ method };
+				end
+				local options_event_name = event_name:gsub("^%S+", "OPTIONS");
 				if type(handler) ~= "function" then
 					local data = handler;
 					handler = function () return data; end
@@ -121,6 +152,8 @@ function module.add_host(module)
 				if not app_handlers[event_name] then
 					app_handlers[event_name] = handler;
 					module:hook_object_event(server, event_name, handler);
+					module:hook_object_event(server, event_name, cors_handler, 1);
+					module:hook_object_event(server, options_event_name, options_handler, -1);
 				else
 					module:log("warn", "App %s added handler twice for '%s', ignoring", app_name, event_name);
 				end
@@ -195,9 +228,6 @@ module:provides("net", {
 	listener = server.listener;
 	default_port = 5281;
 	encryption = "ssl";
-	ssl_config = {
-		verify = "none";
-	};
 	multiplex = {
 		pattern = "^[A-Z]";
 	};