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annotate mod_register_json/mod_register_json.lua @ 357:59345fd38ad9

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mod_register_json: Changed a few bits to allow the service to be specified as standalone (by default uses port 9443), Q: Does it work?
author Marco Cirillo <maranda@lightwitch.org>
date Tue, 12 Apr 2011 17:13:38 +0000
parents 5dacfbc9cd86
children 4483bb889d12
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1 -- Expose a simple servlet to handle user registrations from web pages
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2 -- via JSON.
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3 --
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4 -- A Good chunk of the code is from mod_data_access.lua by Kim Alvefur
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5 -- aka Zash.
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6
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7 local usermanager = require "core.usermanager";
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8 local b64_decode = require "util.encodings".base64.decode;
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9 local json_decode = require "util.json".decode;
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10
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11 module.host = "*" -- HTTP/BOSH Servlets need to be global.
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12
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13 local set_realm_name = module:get_option("reg_servlet_realm") or "Restricted";
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14
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15 local function http_response(code, message, extra_headers)
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16 local response = {
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17 status = code .. " " .. message;
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18 body = message .. "\n"; }
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19 if extra_headers then response.headers = extra_headers; end
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20 return response
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21 end
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22
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23 local function handle_req(method, body, request)
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24 if request.method ~= "POST" then
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25 return http_response(405, "Bad method...", {["Allow"] = "POST"});
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26 end
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27 if not request.headers["authorization"] then
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28 return http_response(401, "No... No...",
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29 {["WWW-Authenticate"]='Basic realm="'.. set_realm_name ..'"'})
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30 end
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31
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32 local user, password = b64_decode(request.headers.authorization
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33 :match("[^ ]*$") or ""):match("([^:]*):(.*)");
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34 user = jid_prep(user);
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35 if not user or not password then return http_response(400, "What's this..?"); end
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36 local user_node, user_host = jid_split(user)
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37 if not hosts[user_host] then return http_response(401, "Negative."); end
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38
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39 module:log("debug", "%s is authing to submit a new user registration data", user)
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40 if not usermanager.test_password(user_node, user_host, password) then
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41 module:log("debug", "%s failed authentication", user)
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42 return http_response(401, "Who the hell are you?! Guards!");
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43 end
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44
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45 local req_body; pcall(function() req_body = json.decode(body) end);
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46 -- Check if user is an admin of said host
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47 if not usermanager.is_admin(user, req_body["host"]) then
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48 module:log("debug", "%s tried to submit registration data for %s but he's not an admin", user, req_body["host"])
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49 return http_response(401, "I obey only to my masters... Have a nice day.");
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50 else
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51 -- Various sanity checks.
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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
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53 -- We first check if the supplied username for registration is already there.
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54 if not usermanager.user_exists(req_body["username"], req_body["host"]) then
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55 usermanager.create_user(req_body["username"], req_body["password"], req_body["host]);
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56 module:log("debug", "%s registration data submission for %s is successful", user, req_body["user"]);
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57 return http_response(200, "Done.");
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58 else
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59 module:log("debug", "%s registration data submission for %s failed (user already exists)", user, req_body["user"]);
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60 return http_response(409, "User already exists.");
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61 end
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62 end
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63 end
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64
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65 local function setup()
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66 local ports = module:get_option("reg_servlet_port") or { 9443 };
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67 local base_name = module:get_option("reg_servlet_base") or "register_account";
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68 local ssl_cert = module:get_option("reg_servlet_sslcert") or false;
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69 local ssl_key = module:get_option("reg_servlet_sslkey") or false;
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70 if not ssl_cert or not ssl_key then
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71 require "net.httpserver".new_from_config(ports, handle_req, { base = base_name });
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72 else
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73 require "net.httpserver".new_from_config(ports, handle_req, { ssl = { key = ssl_key, certificate = ssl_cert }, base = base_name });
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74 end
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75 end
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76 if prosody.start_time then -- already started
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77 setup();
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78 else
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79 prosody.events.add_handler("server-started", setup);
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80 end