prosody-modules
a5da789b2e7d
mod_register_json/mod_register_json.lua

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mod_register_json/mod_register_json.lua @ 355:a5da789b2e7d

mod_register_json: First commit (needs tests).
author Marco Cirillo <maranda@lightwitch.org>
date Tue, 12 Apr 2011 15:25:37 +0000
child 356:5dacfbc9cd86
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354:f24998ec7f8d 355:a5da789b2e7d
1 -- Expose a simple servlet to handle user registrations from web pages
2 -- via JSON.
3 --
4 -- A Good chunk of the code is from mod_data_access.lua by Kim Alvefur
5 -- aka Zash.
6
7 local usermanager = require "core.usermanager";
8 local b64_decode = require "util.encodings".base64.decode;
9 local json_decode = require "util.json".decode;
10
11 module.host = "*" -- HTTP/BOSH Servlets need to be loaded globally.
12
13 local set_realm_name = module:get_option("reg_servlet_realm") or "Restricted";
14
15 local function http_response(code, message, extra_headers)
16 local response = {
17 status = code .. " " .. message;
18 body = message .. "\n"; }
19 if extra_headers then response.headers = extra_headers; end
20 return response
21 end
22
23 local function handle_req(method, body, request)
24 if request.method ~= "POST" then
25 return http_response(405, "Bad method...", {["Allow"] = "POST"});
26 end
27 if not request.headers["authorization"] then
28 return http_response(401, "No... No...",
29 {["WWW-Authenticate"]='Basic realm="'.. set_realm_name ..'"'})
30 end
31
32 local user, password = b64_decode(request.headers.authorization
33 :match("[^ ]*$") or ""):match("([^:]*):(.*)");
34 user = jid_prep(user);
35 if not user or not password then return http_response(400, "What's this..?"); end
36 local user_node, user_host = jid_split(user)
37 if not hosts[user_host] then return http_response(401, "Negative."); end
38
39 module:log("debug", "%s is authing to submit a new user registration data", user)
40 if not usermanager.test_password(user_node, user_host, password) then
41 module:log("debug", "%s failed authentication", user)
42 return http_response(401, "Who the hell are you?! Guards!");
43 end
44
45 local req_body; pcall(function() req_body = json.decode(body) end);
46 -- Check if user is an admin of said host
47 if not usermanager.is_admin(user, req_body["host"]) then
48 module:log("debug", "%s tried to submit registration data for %s but he's not an admin", user, req_body["host"])
49 return http_response(401, "I obey only to my masters... Have a nice day.");
50 else
51 -- Various sanity checks.
52 if req_body == nil then module:log("debug", "JSON data submitted for user registration by %s failed to Decode.", user); return http_response(400, "JSON Decoding failed."); end
53 if req_body["password"]:match("%s") then module:log("debug", "Password submitted for user registration by %s contained spaces.", user); return http_response(400, "Supplied user passwords can't contain spaces."); end
54 -- We first check if the supplied username for registration is already there.
55 if not usermanager.user_exists(req_body["username"], req_body["host"]) then
56 usermanager.create_user(req_body["username"], req_body["password"], req_body["host]);
57 module:log("debug", "%s registration data submission for %s is successful", user, req_body["user"]);
58 return http_response(200, "Done.");
59 else
60 module:log("debug", "%s registration data submission for %s failed (user already exists)", user, req_body["user"]);
61 return http_response(409, "User already exists.");
62 end
63 end
64 end
65
66 local function setup()
67 local ports = module:get_option("reg_servlet_port") or { 5280 };
68 local base_name = module:get_option("reg_servlet_base") or "register_account";
69 require "net.httpserver".new_from_config(ports, handle_req, { base = base_name });
70 end
71 if prosody.start_time then -- already started
72 setup();
73 else
74 prosody.events.add_handler("server-started", setup);
75 end