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annotate mod_post_msg/mod_post_msg.lua @ 4646:072d078be095

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mod_storage_xmlarchive: Advertise capabilities (none atm) Both 'total' and 'quota' would be prohibitively expensive for the kind of archives this module targets as it would require counting items across the entire archive.
author Kim Alvefur <zash@zash.se>
date Fri, 13 Aug 2021 01:18:32 +0200
parents 926aaaeb0d21
children
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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 local xml = require"util.xml";
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10 local json = require "util.json";
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11
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12 local function require_valid_user(f)
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13 return function(event, path)
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14 local request = event.request;
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15 local response = event.response;
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16 local headers = request.headers;
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17 if not headers.authorization then
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18 response.headers.www_authenticate = ("Basic realm=%q"):format(module.host.."/"..module.name);
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19 return 401
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20 end
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21 local from_jid, password = b64_decode(headers.authorization:match"[^ ]*$"):match"([^:]*):(.*)";
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22 from_jid = jid_prep(from_jid);
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23 if from_jid and password then
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24 local user, host = jid_split(from_jid);
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25 local ok, err = test_password(user, host, password);
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26 if ok and user and host then
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27 module:log("debug", "Authed as %s", from_jid);
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28 return f(event, path, from_jid);
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29 elseif err then
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30 module:log("debug", "User failed authentication: %s", err);
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31 end
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32 end
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33 return 401
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34 end
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35 end
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36
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37 local function handle_post(event, path, authed_user)
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38 local request = event.request;
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39 local response = event.response;
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40 local headers = request.headers;
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41
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42 local body_type = headers.content_type;
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43 local to = jid_prep(path);
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44 local message;
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45 if body_type == "text/plain" then
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46 if to and request.body then
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47 message = msg({ to = to, from = authed_user, type = "chat"},request.body);
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48 end
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49 elseif body_type == "application/x-www-form-urlencoded" then
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50 local post_body = formdecode(request.body);
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51 message = msg({ to = post_body.to or to, from = authed_user,
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52 type = post_body.type or "chat"}, post_body.body);
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53 if post_body.html then
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54 local html, err = xml.parse([[<body xmlns="http://www.w3.org/1999/xhtml">]]..post_body.html..[[</body>]]);
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55 if not html then
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56 module:log("warn", "mod_post_msg: invalid XML: %s", err);
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57 return 400;
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58 end
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59 message:tag("html", {xmlns="http://jabber.org/protocol/xhtml-im"}):add_child(html):up();
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60 end
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61 elseif body_type == "application/json" then
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62 local post_body = json.decode(request.body);
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63 if not post_body then return 400; end
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64 message = msg({ to = post_body.to or to, from = authed_user,
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65 type = post_body.type or "chat"}, post_body.body);
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66 else
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67 return 415;
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68 end
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69 if message and message.attr.to then
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70 module:log("debug", "Sending %s", tostring(message));
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71 module:send(message);
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72 return 201;
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73 end
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74 return 422;
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75 end
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76
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77 module:provides("http", {
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78 default_path = "/msg";
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79 route = {
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80 ["POST /*"] = require_valid_user(handle_post);
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81 OPTIONS = function(e)
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82 local headers = e.response.headers;
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83 headers.allow = "POST";
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84 headers.accept = "application/x-www-form-urlencoded, text/plain";
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85 return 200;
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86 end;
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87 }
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88 });