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annotate mod_post_msg/mod_post_msg.lua @ 5213:dc0f502c12f1

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mod_http_oauth2: Fix authorization code logic I have no idea what it did before or if it even worked. RFC 6749 section 4.1.2 says: > A maximum authorization code lifetime of 10 minutes is RECOMMENDED. So this should prevent use of codes older than 10 minutes and remove them from the cache some time after they expire.
author Kim Alvefur <zash@zash.se>
date Mon, 06 Mar 2023 16:49:43 +0100
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 });