2 -- Copyright (C) 2008-2010 Matthew Wild
3 -- Copyright (C) 2008-2010 Waqas Hussain
5 -- This project is MIT/X11 licensed. Please see the
6 -- COPYING file in the source package for more information.
10 local server = require "net.server"
11 local url_parse = require "socket.url".parse;
12 local httpstream_new = require "util.httpstream".new;
14 local connlisteners_start = require "net.connlisteners".start;
15 local connlisteners_get = require "net.connlisteners".get;
18 local t_insert, t_concat = table.insert, table.concat;
19 local tonumber, tostring, pairs, ipairs, type = tonumber, tostring, pairs, ipairs, type;
21 local urlencode = function (s) return s and (s:gsub("%W", function (c) return ("%%%02x"):format(c:byte()); end)); end
23 local log = require "util.logger".init("httpserver");
25 local http_servers = {};
29 local default_handler;
31 local function expectbody(reqt)
32 return reqt.method == "POST";
35 local function send_response(request, response)
38 if response.body or response.headers then
39 local body = response.body and tostring(response.body);
40 log("debug", "Sending response to %s", request.id);
41 resp = { "HTTP/1.0 "..(response.status or "200 OK").."\r\n" };
42 local h = response.headers;
44 for k, v in pairs(h) do
45 t_insert(resp, k..": "..v.."\r\n");
48 if body and not (h and h["Content-Length"]) then
49 t_insert(resp, "Content-Length: "..#body.."\r\n");
51 t_insert(resp, "\r\n");
53 if body and request.method ~= "HEAD" then
56 request.write(t_concat(resp));
58 -- Response we have is just a string (the body)
59 log("debug", "Sending 200 response to %s", request.id or "<none>");
61 local resp = "HTTP/1.0 200 OK\r\n"
62 .. "Connection: close\r\n"
63 .. "Content-Type: text/html\r\n"
64 .. "Content-Length: "..#response.."\r\n"
70 if not request.stayopen then
75 local function call_callback(request, err)
76 if request.handled then return; end
77 request.handled = true;
78 local callback = request.callback;
79 if not callback and request.path then
80 local path = request.url.path;
81 local base = path:match("^/([^/?]+)");
83 base = path:match("^http://[^/?]+/([^/?]+)");
86 callback = (request.server and request.server.handlers[base]) or default_handler;
90 log("debug", "Request error: "..err);
91 if not callback(nil, err, request) then
92 destroy_request(request);
97 local response = callback(request.method, request.body and t_concat(request.body), request);
99 if response == true and not request.destroyed then
100 -- Keep connection open, we will reply later
101 log("debug", "Request %s left open, on_destroy is %s", request.id, tostring(request.on_destroy));
102 elseif response ~= true then
104 send_response(request, response);
105 destroy_request(request);
108 log("debug", "Request handler provided no response, destroying request...");
109 -- No response, close connection
110 destroy_request(request);
115 local function request_reader(request, data, startpos)
116 if not request.parser then
117 local function success_cb(r)
118 for k,v in pairs(r) do request[k] = v; end
119 request.url = url_parse(request.path);
120 request.url.path = request.url.path and request.url.path:gsub("%%(%x%x)", function(x) return x.char(tonumber(x, 16)) end);
121 request.body = { request.body };
122 call_callback(request);
124 local function error_cb(r)
125 call_callback(request, r or "connection-closed");
126 destroy_request(request);
128 request.parser = httpstream_new(success_cb, error_cb);
130 request.parser:feed(data);
133 -- The default handler for requests
134 default_handler = function (method, body, request)
135 log("debug", method.." request for "..tostring(request.path) .. " on port "..request.handler:serverport());
136 return { status = "404 Not Found",
137 headers = { ["Content-Type"] = "text/html" },
138 body = "<html><head><title>Page Not Found</title></head><body>Not here :(</body></html>" };
142 function new_request(handler)
143 return { handler = handler, conn = handler,
144 write = function (...) return handler:write(...); end, state = "request",
145 server = http_servers[handler:serverport()],
146 send = send_response,
147 destroy = destroy_request,
148 id = tostring{}:match("%x+$")
152 function destroy_request(request)
153 log("debug", "Destroying request %s", request.id);
154 listener = listener or connlisteners_get("httpserver");
155 if not request.destroyed then
156 request.destroyed = true;
157 if request.on_destroy then
158 log("debug", "Request has destroy callback");
159 request.on_destroy(request);
161 log("debug", "Request has no destroy callback");
163 request.handler:close()
165 listener.ondisconnect(request.conn, "closed");
171 local http_server = http_servers[params.port];
172 if not http_server then
173 http_server = { handlers = {} };
174 http_servers[params.port] = http_server;
175 -- We weren't already listening on this port, so start now
176 connlisteners_start("httpserver", params);
179 http_server.handlers[params.base] = params.handler;
183 function set_default_handler(handler)
184 default_handler = handler;
187 function new_from_config(ports, handle_request, default_options)
188 if type(handle_request) == "string" then -- COMPAT with old plugins
189 log("warn", "Old syntax of httpserver.new_from_config being used to register %s", handle_request);
190 handle_request, default_options = default_options, { base = handle_request };
192 ports = ports or {5280};
193 for _, options in ipairs(ports) do
194 local port = default_options.port or 5280;
195 local base = default_options.base;
196 local ssl = default_options.ssl or false;
197 local interface = default_options.interface;
198 if type(options) == "number" then
200 elseif type(options) == "table" then
201 port = options.port or port;
202 base = options.path or base;
203 ssl = options.ssl or ssl;
204 interface = options.interface or interface;
205 elseif type(options) == "string" then
211 ssl.protocol = "sslv23";
212 ssl.options = "no_sslv2";
215 new{ port = port, interface = interface,
216 base = base, handler = handle_request,
217 ssl = ssl, type = (ssl and "ssl") or "tcp" };
221 _M.request_reader = request_reader;
222 _M.send_response = send_response;
223 _M.urlencode = urlencode;