Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/auth/userdb-sql.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
9532
00cd9aacd03c Updated copyright notices to include year 2010.
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1 /* Copyright (c) 2004-2010 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_SQL
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7
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8 #include "str.h"
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9 #include "strescape.h"
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10 #include "var-expand.h"
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11 #include "auth-cache.h"
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12 #include "db-sql.h"
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13
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14 #include <stdlib.h>
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15 #include <string.h>
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16
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17 struct sql_userdb_module {
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18 struct userdb_module module;
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19
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20 struct sql_connection *conn;
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21 };
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22
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23 struct userdb_sql_request {
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24 struct auth_request *auth_request;
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25 userdb_callback_t *callback;
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26 };
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27
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28 static void
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29 sql_query_get_result(struct sql_result *result,
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30 struct auth_request *auth_request)
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31 {
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32 const char *name, *value;
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33 unsigned int i, fields_count;
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34
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35 auth_request_init_userdb_reply(auth_request);
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36
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37 fields_count = sql_result_get_fields_count(result);
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38 for (i = 0; i < fields_count; i++) {
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39 name = sql_result_get_field_name(result, i);
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40 value = sql_result_get_field_value(result, i);
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41
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42 if (*name != '\0' && value != NULL) {
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43 auth_request_set_userdb_field(auth_request,
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44 name, value);
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45 }
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46 }
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47 }
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48
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49 static void sql_query_callback(struct sql_result *sql_result,
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50 struct userdb_sql_request *sql_request)
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51 {
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52 struct auth_request *auth_request = sql_request->auth_request;
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53 enum userdb_result result = USERDB_RESULT_INTERNAL_FAILURE;
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54 int ret;
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55
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56 ret = sql_result_next_row(sql_result);
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57 if (ret < 0) {
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58 auth_request_log_error(auth_request, "sql",
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59 "User query failed: %s",
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60 sql_result_get_error(sql_result));
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61 } else if (ret == 0) {
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62 result = USERDB_RESULT_USER_UNKNOWN;
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63 auth_request_log_info(auth_request, "sql", "Unknown user");
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64 } else {
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65 sql_query_get_result(sql_result, auth_request);
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66 result = USERDB_RESULT_OK;
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67 }
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68
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69 sql_request->callback(result, auth_request);
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70 auth_request_unref(&auth_request);
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71 i_free(sql_request);
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72 }
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73
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74 static const char *
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75 userdb_sql_escape(const char *str, const struct auth_request *auth_request)
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76 {
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77 struct userdb_module *_module = auth_request->userdb->userdb;
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78 struct sql_userdb_module *module =
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79 (struct sql_userdb_module *)_module;
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80
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81 return sql_escape_string(module->conn->db, str);
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82 }
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83
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84 static void userdb_sql_lookup(struct auth_request *auth_request,
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85 userdb_callback_t *callback)
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86 {
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87 struct userdb_module *_module = auth_request->userdb->userdb;
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88 struct sql_userdb_module *module =
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89 (struct sql_userdb_module *)_module;
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90 struct userdb_sql_request *sql_request;
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91 string_t *query;
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92
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93 query = t_str_new(512);
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94 var_expand(query, module->conn->set.user_query,
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95 auth_request_get_var_expand_table(auth_request,
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96 userdb_sql_escape));
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97
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98 auth_request_ref(auth_request);
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99 sql_request = i_new(struct userdb_sql_request, 1);
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100 sql_request->callback = callback;
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101 sql_request->auth_request = auth_request;
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102
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103 auth_request_log_debug(auth_request, "sql", "%s", str_c(query));
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104
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105 sql_query(module->conn->db, str_c(query),
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106 sql_query_callback, sql_request);
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107 }
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108
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109 static struct userdb_module *
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110 userdb_sql_preinit(struct auth_userdb *auth_userdb, const char *args)
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111 {
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112 struct sql_userdb_module *module;
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113
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114 module = p_new(auth_userdb->auth->pool, struct sql_userdb_module, 1);
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115 module->conn = db_sql_init(args);
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116
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117 module->module.cache_key =
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118 auth_cache_parse_key(auth_userdb->auth->pool,
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119 module->conn->set.user_query);
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120 return &module->module;
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121 }
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122
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123 static void userdb_sql_init(struct userdb_module *_module,
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124 const char *args ATTR_UNUSED)
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125 {
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126 struct sql_userdb_module *module =
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127 (struct sql_userdb_module *)_module;
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128 enum sql_db_flags flags;
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129
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130 flags = sql_get_flags(module->conn->db);
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131 _module->blocking = (flags & SQL_DB_FLAG_BLOCKING) != 0;
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132
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133 if (!_module->blocking || worker)
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134 sql_connect(module->conn->db);
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135 }
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136
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137 static void userdb_sql_deinit(struct userdb_module *_module)
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138 {
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139 struct sql_userdb_module *module =
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140 (struct sql_userdb_module *)_module;
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141
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142 db_sql_unref(&module->conn);
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143 }
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144
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145 struct userdb_module_interface userdb_sql = {
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146 "sql",
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147
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148 userdb_sql_preinit,
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149 userdb_sql_init,
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150 userdb_sql_deinit,
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151
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152 userdb_sql_lookup
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153 };
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154 #else
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155 struct userdb_module_interface userdb_sql = {
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156 MEMBER(name) "sql"
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157 };
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158 #endif