Mercurial > dovecot > core-2.2

annotate src/auth/mech-login.c @ 3064:2d33734b16d5 HEAD

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Split auth_request* functions from mech.c to auth-request.c
author Timo Sirainen <tss@iki.fi>
date Fri, 07 Jan 2005 20:51:10 +0200
parents 052f3a5743af
children 29d83a8bb50d
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1 /*
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2 * LOGIN authentication mechanism.
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3 *
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4 * Copyright (c) 2004 Andrey Panin <pazke@donpac.ru>
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5 *
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU Lesser General Public License as published
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8 * by the Free Software Foundation; either version 2 of the License, or
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9 * (at your option) any later version.
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10 */
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11
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12 #include "common.h"
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13 #include "mech.h"
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14 #include "passdb.h"
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15 #include "safe-memset.h"
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16
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17 static void verify_callback(enum passdb_result result,
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18 struct auth_request *request)
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19 {
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20 switch (result) {
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21 case PASSDB_RESULT_OK:
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22 auth_request_success(request, NULL, 0);
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23 break;
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24 case PASSDB_RESULT_INTERNAL_FAILURE:
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25 auth_request_internal_failure(request);
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26 break;
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27 default:
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28 auth_request_fail(request);
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29 break;
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30 }
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31 }
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32
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33 static void
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34 mech_login_auth_continue(struct auth_request *request,
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35 const unsigned char *data, size_t data_size,
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36 mech_callback_t *callback)
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37 {
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38 static const char prompt2[] = "Password:";
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39 const char *error;
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40
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41 request->callback = callback;
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42
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43 if (request->user == NULL) {
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44 request->user = p_strndup(request->pool, data, data_size);
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45
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46 if (!mech_fix_username(request->user, &error)) {
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47 if (verbose) {
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48 i_info("login(%s): %s",
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49 get_log_prefix(request), error);
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50 }
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51 auth_request_fail(request);
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52 return;
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53 }
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54
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55 callback(request, AUTH_CLIENT_RESULT_CONTINUE,
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56 prompt2, strlen(prompt2));
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57 } else {
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58 char *pass = p_strndup(unsafe_data_stack_pool, data, data_size);
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59 passdb->verify_plain(request, pass, verify_callback);
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60 safe_memset(pass, 0, strlen(pass));
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61 }
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62 }
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63
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64 static void
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65 mech_login_auth_initial(struct auth_request *request,
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66 const unsigned char *data __attr_unused__,
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67 size_t data_size __attr_unused__,
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68 mech_callback_t *callback)
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69 {
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70 static const char prompt1[] = "Username:";
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71
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72 callback(request, AUTH_CLIENT_RESULT_CONTINUE,
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73 prompt1, strlen(prompt1));
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74 }
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75
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76 static void mech_login_auth_free(struct auth_request *request)
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77 {
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78 pool_unref(request->pool);
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79 }
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80
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81 static struct auth_request *mech_login_auth_new(void)
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82 {
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83 struct auth_request *request;
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84 pool_t pool;
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85
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86 pool = pool_alloconly_create("login_auth_request", 256);
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87 request = p_new(pool, struct auth_request, 1);
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88
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89 request->refcount = 1;
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90 request->pool = pool;
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91 return request;
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92 }
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93
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94 const struct mech_module mech_login = {
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95 "LOGIN",
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96
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97 MEMBER(flags) MECH_SEC_PLAINTEXT,
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98
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99 MEMBER(passdb_need_plain) TRUE,
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100 MEMBER(passdb_need_credentials) FALSE,
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101
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102 mech_login_auth_new,
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103 mech_login_auth_initial,
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104 mech_login_auth_continue,
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105 mech_login_auth_free
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106 };