annotate mod_auth_dovecot/auth_dovecot/mod_auth_dovecot.lua @ 4340:7cd3b7ec59e9

mod_http_oauth2: Rudimentary support for scopes (but not really) We don't support limiting access, but this change will inform the client what permissions the created token has (e.g. is the user an admin or not). There is some work in progress on real scope support.
author Matthew Wild <mwild1@gmail.com>
date Sat, 16 Jan 2021 19:47:22 +0000
parents 544f5a4a8428
children
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1 -- Dovecot authentication backend for Prosody
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2 --
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3 -- Copyright (C) 2010-2011 Waqas Hussain
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4 -- Copyright (C) 2011 Kim Alvefur
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5 --
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6
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7 local name = "Dovecot SASL";
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8 local log = require "util.logger".init("auth_dovecot");
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9
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10 local socket_path = module:get_option_string("dovecot_auth_socket", "/var/run/dovecot/auth-login");
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11 local socket_host = module:get_option_string("dovecot_auth_host", "127.0.0.1");
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12 local socket_port = module:get_option_string("dovecot_auth_port");
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13
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14 local service_realm = module:get_option("realm");
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15 local service_name = module:get_option("service_name");
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16 local append_host = module:get_option_boolean("auth_append_host");
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17 --assert(not append_host, "auth_append_host does not work");
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18 local validate_domain = module:get_option_boolean("validate_append_host");
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19 local handle_appended = module:get_option_string("handle_appended");
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20 local util_sasl_new = require "util.sasl".new;
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21
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22 local new_dovecot_sasl = module:require "sasl_dovecot".new;
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23
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24 local new_sasl = function(realm)
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25 return new_dovecot_sasl(
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26 service_realm or realm,
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27 service_name or "xmpp",
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28
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29 socket_port and { socket_host, socket_port } or socket_path,
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30
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31 { --config
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32 handle_domain = handle_appended or
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33 (append_host and "split" or "escape"),
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34 validate_domain = validate_domain,
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35 }
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36 );
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37 end
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38
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39 do
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40 local s, err = new_sasl(module.host)
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41 if not s then
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42 log("error", "%s", tostring(err));
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43 end
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44 assert(s, "Could not create a new SASL object");
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45 assert(s.mechanisms, "SASL object has no mechanims method");
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46 local m, _m = {}, s:mechanisms();
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47 assert(not append_host or _m.PLAIN, "auth_append_host requires PLAIN, but it is unavailable");
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48 for k in pairs(_m) do
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49 table.insert(m, k);
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50 end
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51 log("debug", "Mechanims found: %s", table.concat(m, ", "));
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52 end
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53
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54 provider = {};
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55
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56 function provider.test_password(username, password)
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57 return new_sasl(module.host):plain_test(username, password);
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58 end
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59
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60 function provider.get_password(username)
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61 return nil, "Passwords unavailable for "..name;
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62 end
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63
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64 function provider.set_password(username, password)
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65 return nil, "Passwords unavailable for "..name;
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66 end
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67
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68 function provider.user_exists(username)
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69 return true -- FIXME
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70 --[[ This, sadly, doesn't work.
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71 local user_test = new_sasl(module.host);
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72 user_test:select("PLAIN");
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73 user_test:process(("\0%s\0"):format(username));
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74 return user_test.username == username;
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75 --]]
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76 end
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77
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78 function provider.create_user(username, password)
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79 return nil, "Account creation/modification not available with "..name;
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80 end
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81
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82 function provider.get_sasl_handler()
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83 return new_sasl(module.host);
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84 end
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85
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86 if append_host then
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87 function provider.test_password(username, password)
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88 return new_sasl(module.host):plain_test(username .. "@".. (service_realm or module.host), password) == "success";
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89 end
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90
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91 function provider.get_sasl_handler()
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92 return util_sasl_new(module.host, {
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93 plain_test = function(sasl, username, password, realm)
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94 return provider.test_password(username, password), true
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95 end;
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96 });
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97 end
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98 end
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99
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100 module:provides("auth", provider);
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101