prosody
5f182bccf33f
plugins/mod_tokenauth.lua

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plugins/mod_tokenauth.lua @ 12686:5f182bccf33f

mod_component: Require 'from' attribute on stanzas by default The old behaviour of falling back to the component domain when it is missing has been merged into the logic for the existing "validate_from_addresses" option (which is strict by default). ejabberd already rejects component stanzas with no 'from' (as the XEP requires), and this has led to compatibility issues for components that were seemingly working fine with Prosody.
author Matthew Wild <mwild1@gmail.com>
date Sun, 28 Aug 2022 07:51:50 +0100
parent 12662:07424992d7fc
child 12742:126aefd2c4c6
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1 local id = require "util.id";
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2 local jid = require "util.jid";
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3 local base64 = require "util.encodings".base64;
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4 local usermanager = require "core.usermanager";
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5 local generate_identifier = require "util.id".short;
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6
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7 local token_store = module:open_store("auth_tokens", "map");
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8
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9 local function select_role(username, host, role)
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10 if role then
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11 return prosody.hosts[host].authz.get_role_by_name(role);
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12 end
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13 return usermanager.get_user_role(username, host);
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14 end
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15
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16 function create_jid_token(actor_jid, token_jid, token_role, token_ttl)
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17 token_jid = jid.prep(token_jid);
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18 if not actor_jid or token_jid ~= actor_jid and not jid.compare(token_jid, actor_jid) then
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19 return nil, "not-authorized";
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20 end
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21
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22 local token_username, token_host, token_resource = jid.split(token_jid);
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23
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24 if token_host ~= module.host then
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25 return nil, "invalid-host";
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26 end
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27
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28 local token_info = {
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29 owner = actor_jid;
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30 created = os.time();
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31 expires = token_ttl and (os.time() + token_ttl) or nil;
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32 jid = token_jid;
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33
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34 resource = token_resource;
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35 role = token_role;
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36 };
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37
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38 local token_id = id.long();
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39 local token = base64.encode("1;"..jid.join(token_username, token_host)..";"..token_id);
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40 token_store:set(token_username, token_id, token_info);
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41
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42 return token, token_info;
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43 end
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44
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45 local function parse_token(encoded_token)
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46 local token = base64.decode(encoded_token);
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47 if not token then return nil; end
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48 local token_jid, token_id = token:match("^1;([^;]+);(.+)$");
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49 if not token_jid then return nil; end
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50 local token_user, token_host = jid.split(token_jid);
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51 return token_id, token_user, token_host;
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52 end
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53
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54 local function _get_parsed_token_info(token_id, token_user, token_host)
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55 if token_host ~= module.host then
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56 return nil, "invalid-host";
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57 end
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58
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59 local token_info, err = token_store:get(token_user, token_id);
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60 if not token_info then
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61 if err then
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62 return nil, "internal-error";
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63 end
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64 return nil, "not-authorized";
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65 end
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66
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67 if token_info.expires and token_info.expires < os.time() then
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68 return nil, "not-authorized";
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69 end
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70
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71 return token_info
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72 end
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73
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74 function get_token_info(token)
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75 local token_id, token_user, token_host = parse_token(token);
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76 if not token_id then
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77 return nil, "invalid-token-format";
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78 end
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79 return _get_parsed_token_info(token_id, token_user, token_host);
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80 end
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81
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82 function get_token_session(token, resource)
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83 local token_id, token_user, token_host = parse_token(token);
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84 if not token_id then
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85 return nil, "invalid-token-format";
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86 end
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87
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88 local token_info, err = _get_parsed_token_info(token_id, token_user, token_host);
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89 if not token_info then return nil, err; end
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90
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91 return {
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92 username = token_user;
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93 host = token_host;
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94 resource = token_info.resource or resource or generate_identifier();
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95
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96 role = select_role(token_user, token_host, token_info.role);
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97 };
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98 end
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99
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100
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101 function revoke_token(token)
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102 local token_id, token_user, token_host = parse_token(token);
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103 if not token_id then
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104 return nil, "invalid-token-format";
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105 end
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106 if token_host ~= module.host then
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107 return nil, "invalid-host";
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108 end
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109 return token_store:set(token_user, token_id, nil);
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110 end