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annotate mod_post_msg/mod_post_msg.lua @ 1230:f7c561fbd5a6

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mod_register_web: Friendly error messages if the username is taken or failed nodeprep
author Kim Alvefur <zash@zash.se>
date Sat, 30 Nov 2013 20:28:07 +0100
parents a6c8f252e5fa
children e556219cb43d
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1 module:depends"http"
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2
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3 local jid_split = require "util.jid".split;
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4 local jid_prep = require "util.jid".prep;
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5 local msg = require "util.stanza".message;
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6 local test_password = require "core.usermanager".test_password;
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7 local b64_decode = require "util.encodings".base64.decode;
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8 local formdecode = require "net.http".formdecode;
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9
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10 local function require_valid_user(f)
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11 return function(event, path)
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12 local request = event.request;
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13 local response = event.response;
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14 local headers = request.headers;
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15 if not headers.authorization then
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16 response.headers.www_authenticate = ("Basic realm=%q"):format(module.host.."/"..module.name);
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17 return 401
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18 end
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19 local from_jid, password = b64_decode(headers.authorization:match"[^ ]*$"):match"([^:]*):(.*)";
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20 from_jid = jid_prep(from_jid);
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21 if from_jid and password then
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22 local user, host = jid_split(from_jid);
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23 local ok, err = test_password(user, host, password);
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24 if ok and user and host then
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25 module:log("debug", "Authed as %s", from_jid);
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26 return f(event, path, from_jid);
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27 elseif err then
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28 module:log("debug", "User failed authentication: %s", err);
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29 end
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30 end
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31 return 401
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32 end
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33 end
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34
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35 local function handle_post(event, path, authed_user)
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36 local request = event.request;
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37 local response = event.response;
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38 local headers = request.headers;
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39
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40 local body_type = headers.content_type;
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41 local to = jid_prep(path);
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42 local message;
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43 if body_type == "text/plain" then
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44 if to and request.body then
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45 message = msg({ to = to, from = authed_user, type = "chat"},request.body);
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46 end
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47 elseif body_type == "application/x-www-form-urlencoded" then
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48 local post_body = formdecode(request.body);
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49 message = msg({ to = post_body.to or to, from = authed_user,
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50 type = post_body.type or "chat"}, post_body.body);
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51 else
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52 return 415;
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53 end
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54 if message and message.attr.to then
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55 module:log("debug", "Sending %s", tostring(message));
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56 module:send(message);
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57 return 201;
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58 end
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59 return 422;
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60 end
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61
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62 module:provides("http", {
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63 default_path = "/msg";
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64 route = {
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65 ["POST /*"] = require_valid_user(handle_post);
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66 OPTIONS = function(e)
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67 local headers = e.response.headers;
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68 headers.allow = "POST";
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69 headers.accept = "application/x-www-form-urlencoded, text/plain";
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70 return 200;
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71 end;
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72 }
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73 });