[7d74d42] | 1 | /* |
---|
| 2 | * Copyright (C) 2021 Soleta Networks <info@soleta.eu> |
---|
| 3 | * |
---|
| 4 | * This program is free software: you can redistribute it and/or modify it under |
---|
| 5 | * the terms of the GNU Affero General Public License as published by the |
---|
| 6 | * Free Software Foundation, version 3. |
---|
| 7 | */ |
---|
| 8 | |
---|
| 9 | #include <syslog.h> |
---|
| 10 | #include <netinet/in.h> |
---|
| 11 | #include <arpa/inet.h> |
---|
| 12 | #include <string.h> |
---|
| 13 | #include "dbi.h" |
---|
| 14 | #include "cfg.h" |
---|
| 15 | #include <syslog.h> |
---|
| 16 | #include <string.h> |
---|
| 17 | #include <stdio.h> |
---|
| 18 | |
---|
| 19 | struct og_server_cfg ogconfig; |
---|
| 20 | |
---|
| 21 | static int og_dbi_create_version(struct og_dbi *dbi) |
---|
| 22 | { |
---|
| 23 | const char *msglog; |
---|
| 24 | dbi_result result; |
---|
| 25 | |
---|
| 26 | result = dbi_conn_queryf(dbi->conn, "CREATE TABLE `version` " |
---|
| 27 | "(`version` smallint unsigned NOT NULL) " |
---|
| 28 | "ENGINE='MyISAM' COLLATE 'utf8_general_ci'"); |
---|
| 29 | if (!result) { |
---|
| 30 | dbi_conn_error(dbi->conn, &msglog); |
---|
| 31 | syslog(LOG_INFO, "Could not create schema version table (%s:%d) %s\n", |
---|
| 32 | __func__, __LINE__, msglog); |
---|
| 33 | return -1; |
---|
| 34 | } |
---|
| 35 | dbi_result_free(result); |
---|
| 36 | |
---|
| 37 | result = dbi_conn_queryf(dbi->conn, "INSERT INTO `version` (`version`) VALUES ('0')"); |
---|
| 38 | if (!result) { |
---|
| 39 | dbi_conn_error(dbi->conn, &msglog); |
---|
| 40 | syslog(LOG_INFO, "Could not insert into schema version table (%s:%d) %s\n", |
---|
| 41 | __func__, __LINE__, msglog); |
---|
| 42 | return -1; |
---|
| 43 | } |
---|
| 44 | dbi_result_free(result); |
---|
| 45 | |
---|
| 46 | return 0; |
---|
| 47 | } |
---|
| 48 | static int og_dbi_schema_version(struct og_dbi *dbi) |
---|
| 49 | { |
---|
| 50 | const char *msglog; |
---|
| 51 | dbi_result result; |
---|
| 52 | uint32_t version; |
---|
| 53 | |
---|
| 54 | result = dbi_conn_queryf(dbi->conn, "SELECT * from version"); |
---|
| 55 | if (!result) { |
---|
| 56 | dbi_conn_error(dbi->conn, &msglog); |
---|
| 57 | syslog(LOG_INFO, "no version table found (%s:%d) %s\n", |
---|
| 58 | __func__, __LINE__, msglog); |
---|
| 59 | return -1; |
---|
| 60 | } |
---|
| 61 | |
---|
| 62 | if (!dbi_result_last_row(result)) { |
---|
| 63 | dbi_conn_error(dbi->conn, &msglog); |
---|
| 64 | syslog(LOG_ERR, "cannot get last row from version table (%s:%d) %s\n", |
---|
| 65 | __func__, __LINE__, msglog); |
---|
| 66 | return -1; |
---|
| 67 | } |
---|
| 68 | |
---|
| 69 | version = dbi_result_get_uint(result, "version"); |
---|
| 70 | |
---|
| 71 | dbi_result_free(result); |
---|
| 72 | |
---|
| 73 | return version; |
---|
| 74 | } |
---|
| 75 | static int og_dbi_schema_v1(struct og_dbi *dbi) |
---|
| 76 | { |
---|
| 77 | const char *msglog, *command; |
---|
| 78 | dbi_result result, result_alter; |
---|
| 79 | |
---|
| 80 | result = dbi_conn_queryf(dbi->conn, "SELECT concat('alter table `',TABLE_SCHEMA,'`.`',TABLE_NAME,'` engine=innodb;')" |
---|
| 81 | "AS cmd FROM information_schema.TABLES WHERE TABLE_SCHEMA='%s'", |
---|
| 82 | ogconfig.db.name); |
---|
| 83 | |
---|
| 84 | while (dbi_result_next_row(result)) { |
---|
| 85 | command = dbi_result_get_string(result, "cmd"); |
---|
| 86 | |
---|
| 87 | syslog(LOG_DEBUG, "Upgrading to innoDB: %s\n", command); |
---|
| 88 | result_alter = dbi_conn_query(dbi->conn, command); |
---|
| 89 | if (!result_alter) { |
---|
| 90 | dbi_conn_error(dbi->conn, &msglog); |
---|
| 91 | syslog(LOG_INFO, "Error when upgrading engine to innoDB (%s:%d) %s\n", |
---|
| 92 | __func__, __LINE__, msglog); |
---|
| 93 | return -1; |
---|
| 94 | } |
---|
| 95 | dbi_result_free(result_alter); |
---|
| 96 | } |
---|
| 97 | dbi_result_free(result); |
---|
| 98 | |
---|
| 99 | result = dbi_conn_query(dbi->conn, "UPDATE version SET version = 1"); |
---|
| 100 | if (!result) { |
---|
| 101 | dbi_conn_error(dbi->conn, &msglog); |
---|
| 102 | syslog(LOG_INFO, "Could not update version row (%s:%d) %s\n", |
---|
| 103 | __func__, __LINE__, msglog); |
---|
| 104 | return -1; |
---|
| 105 | } |
---|
| 106 | dbi_result_free(result); |
---|
| 107 | |
---|
| 108 | return 0; |
---|
| 109 | } |
---|
| 110 | |
---|
| 111 | static struct og_schema_version { |
---|
| 112 | int version; |
---|
| 113 | int (*update)(struct og_dbi *dbi); |
---|
| 114 | } schema_version[] = { |
---|
| 115 | { .version = 1, .update = og_dbi_schema_v1 }, |
---|
| 116 | { 0, NULL }, |
---|
| 117 | }; |
---|
| 118 | |
---|
| 119 | int og_dbi_schema_update(void) |
---|
| 120 | { |
---|
| 121 | int version, i, err; |
---|
| 122 | struct og_dbi *dbi; |
---|
| 123 | const char *msglog; |
---|
| 124 | |
---|
| 125 | dbi = og_dbi_open(&ogconfig.db); |
---|
| 126 | if (!dbi) { |
---|
| 127 | dbi_conn_error(dbi->conn, &msglog); |
---|
| 128 | syslog(LOG_ERR, "failed to query database (%s:%d) %s\n", |
---|
| 129 | __func__, __LINE__, msglog); |
---|
| 130 | return -1; |
---|
| 131 | } |
---|
| 132 | |
---|
| 133 | version = og_dbi_schema_version(dbi); |
---|
| 134 | |
---|
| 135 | if (version < 0) { |
---|
| 136 | syslog(LOG_INFO, "creating table version in schema\n"); |
---|
| 137 | og_dbi_create_version(dbi); |
---|
| 138 | } else { |
---|
| 139 | syslog(LOG_INFO, "database schema version %d\n", version); |
---|
| 140 | } |
---|
| 141 | |
---|
| 142 | for (i = 0; schema_version[i].version; i++) { |
---|
| 143 | if (version >= schema_version[i].version) |
---|
| 144 | continue; |
---|
| 145 | |
---|
| 146 | syslog(LOG_INFO, "upgrading to schema version %d\n", schema_version[i].version); |
---|
| 147 | |
---|
| 148 | err = schema_version[i].update(dbi); |
---|
| 149 | if (err < 0) { |
---|
| 150 | syslog(LOG_ERR, "failed to update schema!\n"); |
---|
| 151 | og_dbi_close(dbi); |
---|
| 152 | return -1; |
---|
| 153 | } |
---|
| 154 | } |
---|
| 155 | |
---|
| 156 | og_dbi_close(dbi); |
---|
| 157 | |
---|
| 158 | return 0; |
---|
| 159 | } |
---|