annotate mod_auth_ha1/mod_auth_ha1.lua @ 5119:048e339706ba

mod_rest: Remove manual reference expansion in schema This hack was originally added to reduce the number of definitions of common attributes (type, to, from etc) and payloads (e.g. delay). This predated pointers and references, and until now was needed because parsing picked out the correct stanza kind from the schema, which broke internal references. Removing this hack paves the way for allowing the schema to be configured or customized more easily.
author Kim Alvefur <zash@zash.se>
date Tue, 20 Dec 2022 21:48:28 +0100
parents 31c4d92a81e5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 -- Prosody IM
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2 -- Copyright (C) 2014 Matthew Wild
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3 --
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4 -- This project is MIT/X11 licensed. Please see the
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5 -- COPYING file in the source package for more information.
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6 --
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7
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8 local usermanager = require "core.usermanager";
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9 local new_sasl = require "util.sasl".new;
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11 local nodeprep = require "util.encodings".stringprep.nodeprep;
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12 local nameprep = require "util.encodings".stringprep.nameprep;
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13 local md5 = require "util.hashes".md5;
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14
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15 local host = module.host;
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17 local auth_filename = module:get_option_string("auth_ha1_file", "auth.txt");
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18 local auth_data = {};
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19
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20 function reload_auth_data()
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21 local f, err = io.open(auth_filename);
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22 if not f then
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23 module:log("error", "Failed to read from auth file: %s", err);
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24 return;
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25 end
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26 auth_data = {};
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27 local line_number, imported_count, not_authorized_count = 0, 0, 0;
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28 for line in f:lines() do
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29 line_number = line_number + 1;
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30 local username, hash, realm, state = line:match("^([^:]+):(%x+):([^:]+):(.+)$");
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31 if not username then
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32 if line:sub(1,1) ~= "#" then
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33 module:log("error", "Unable to parse line %d of auth file, skipping", line_number);
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34 end
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35 else
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36 username, realm = nodeprep(username), nameprep(realm);
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37 if not username then
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38 module:log("error", "Invalid username on line %d of auth file, skipping", line_number);
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39 elseif not realm then
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40 module:log("error", "Invalid hostname/realm on line %d of auth file, skipping", line_number);
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41 elseif state ~= "authorized" then
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42 not_authorized_count = not_authorized_count + 1;
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43 elseif realm == host then
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44 auth_data[username] = hash;
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45 imported_count = imported_count + 1;
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46 end
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47 end
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48 end
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49 f:close();
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50 module:log("debug", "Loaded %d accounts from auth file (%d authorized)", imported_count, imported_count-not_authorized_count);
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51 end
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52
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53 function module.load()
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54 reload_auth_data();
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55 end
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56
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57 module:hook_global("config-reloaded", reload_auth_data);
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58
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59 -- define auth provider
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60 local provider = {};
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61
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62 function provider.test_password(username, password)
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63 module:log("debug", "test password for user %s at host %s, %s", username, host, password);
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64
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65 local test_hash = md5(username..":"..host..":"..password, true);
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66
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67 if test_hash == auth_data[username] then
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68 return true;
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69 else
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70 return nil, "Auth failed. Invalid username or password.";
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71 end
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72 end
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74 function provider.set_password(username, password)
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75 return nil, "Changing passwords not supported";
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76 end
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77
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78 function provider.user_exists(username)
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79 if not auth_data[username] then
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80 module:log("debug", "account not found for username '%s' at host '%s'", username, host);
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81 return nil, "Auth failed. Invalid username";
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82 end
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83 return true;
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84 end
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85
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86 function provider.create_user(username, password)
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87 return nil, "User creation not supported";
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88 end
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89
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90 function provider.delete_user(username)
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91 return nil , "User deletion not supported";
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92 end
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93
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94 function provider.get_sasl_handler()
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95 return new_sasl(host, {
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96 plain_test = function(sasl, username, password, realm)
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97 return usermanager.test_password(username, realm, password), true;
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98 end
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99 });
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100 end
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101
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102 module:provides("auth", provider);
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103