Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/auth/userdb-passwd-file.c @ 9575:0a00dcc4f0ea HEAD

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lib-storage: Allow shared namespace prefix to use %variable modifiers.
author Timo Sirainen <tss@iki.fi>
date Wed, 26 May 2010 17:07:51 +0100
parents 00cd9aacd03c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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00cd9aacd03c Updated copyright notices to include year 2010.
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1 /* Copyright (c) 2002-2010 Dovecot authors, see the included COPYING file */
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2
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3 #include "common.h"
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4 #include "userdb.h"
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5
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6 #ifdef USERDB_PASSWD_FILE
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7
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8 #include "str.h"
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9 #include "auth-cache.h"
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10 #include "var-expand.h"
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11 #include "db-passwd-file.h"
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12
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13 #define PASSWD_FILE_CACHE_KEY "%u"
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14
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15 struct passwd_file_userdb_module {
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16 struct userdb_module module;
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17
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18 struct auth *auth;
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19 struct db_passwd_file *pwf;
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20 };
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21
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22 static void passwd_file_lookup(struct auth_request *auth_request,
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23 userdb_callback_t *callback)
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24 {
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25 struct userdb_module *_module = auth_request->userdb->userdb;
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26 struct passwd_file_userdb_module *module =
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27 (struct passwd_file_userdb_module *)_module;
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28 struct passwd_user *pu;
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29 const struct var_expand_table *table;
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30 string_t *str;
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31 const char *key, *value;
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32 char **p;
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33
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34 pu = db_passwd_file_lookup(module->pwf, auth_request);
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35 if (pu == NULL) {
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36 callback(USERDB_RESULT_USER_UNKNOWN, auth_request);
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37 return;
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38 }
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39
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40 auth_request_init_userdb_reply(auth_request);
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41 if (pu->uid != (uid_t)-1) {
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42 auth_request_set_userdb_field(auth_request, "uid",
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43 dec2str(pu->uid));
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44 }
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45 if (pu->gid != (gid_t)-1) {
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46 auth_request_set_userdb_field(auth_request, "gid",
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47 dec2str(pu->gid));
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48 }
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49
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50 if (pu->home != NULL)
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51 auth_request_set_userdb_field(auth_request, "home", pu->home);
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52
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53 if (pu->extra_fields != NULL) {
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54 str = t_str_new(512);
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55 table = auth_request_get_var_expand_table(auth_request, NULL);
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56
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57 for (p = pu->extra_fields; *p != NULL; p++) {
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58 if (strncmp(*p, "userdb_", 7) != 0)
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59 continue;
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60
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61 key = *p + 7;
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62 value = strchr(key, '=');
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63 if (value != NULL) {
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64 key = t_strdup_until(key, value);
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65 str_truncate(str, 0);
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66 var_expand(str, value + 1, table);
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67 value = str_c(str);
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68 }
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69 auth_request_set_userdb_field(auth_request, key, value);
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70 }
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71 }
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72
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73 callback(USERDB_RESULT_OK, auth_request);
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74 }
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75
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76 static struct userdb_module *
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77 passwd_file_preinit(struct auth_userdb *auth_userdb, const char *args)
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78 {
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79 struct passwd_file_userdb_module *module;
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80 const char *format = PASSWD_FILE_DEFAULT_USERNAME_FORMAT;
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81 const char *p;
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82
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83 if (strncmp(args, "username_format=", 16) == 0) {
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84 args += 16;
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85 p = strchr(args, ' ');
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86 if (p == NULL) {
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87 format = args;
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88 args = "";
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89 } else {
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90 format = p_strdup_until(auth_userdb->auth->pool,
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91 args, p);
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92 args = p + 1;
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93 }
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94 }
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95
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96 if (*args == '\0')
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97 i_fatal("userdb passwd-file: Missing args");
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98
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99 module = p_new(auth_userdb->auth->pool,
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100 struct passwd_file_userdb_module, 1);
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101 module->auth = auth_userdb->auth;
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102 module->pwf = db_passwd_file_init(args, format, TRUE,
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103 module->auth->verbose_debug);
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104
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105 if (!module->pwf->vars)
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106 module->module.cache_key = PASSWD_FILE_CACHE_KEY;
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107 else {
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108 module->module.cache_key =
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109 auth_cache_parse_key(auth_userdb->auth->pool,
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110 t_strconcat(PASSWD_FILE_CACHE_KEY,
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111 module->pwf->path,
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112 NULL));
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113 }
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114 return &module->module;
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115 }
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116
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117 static void passwd_file_init(struct userdb_module *_module,
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118 const char *args ATTR_UNUSED)
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119 {
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120 struct passwd_file_userdb_module *module =
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121 (struct passwd_file_userdb_module *)_module;
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122
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123 db_passwd_file_parse(module->pwf);
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124 }
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125
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126 static void passwd_file_deinit(struct userdb_module *_module)
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127 {
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128 struct passwd_file_userdb_module *module =
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129 (struct passwd_file_userdb_module *)_module;
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130
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131 db_passwd_file_unref(&module->pwf);
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132 }
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133
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134 struct userdb_module_interface userdb_passwd_file = {
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135 "passwd-file",
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136
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137 passwd_file_preinit,
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138 passwd_file_init,
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139 passwd_file_deinit,
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140
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141 passwd_file_lookup
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142 };
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143 #else
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144 struct userdb_module_interface userdb_passwd_file = {
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145 MEMBER(name) "passwd-file"
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146 };
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147 #endif