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init.go
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init.go
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package database
import (
"context"
"database/sql"
"fmt"
"time"
_ "github.com/go-sql-driver/mysql"
)
func Init(databaseConfig DatabaseConfig, adminPassword string) error {
log.Trace("Initializing database connection...")
config = databaseConfig
if err := createDatabase(); err != nil {
return err
}
dbTemp, err := connection()
if err != nil {
return err
}
log.Trace("Initializing database schema...")
db = dbTemp
if err := createConfigTable(); err != nil {
return err
}
if err := createUserTable(); err != nil {
return err
}
if err := createUserTokenTable(); err != nil {
return err
}
if err := createPermissionTable(); err != nil {
return err
}
if err := initializePermissions(); err != nil {
return err
}
if err := createHasPermissionTable(); err != nil {
return err
}
if err := createRoomTable(); err != nil {
return err
}
if err := createSwitchTable(); err != nil {
return err
}
if err := createPowerUsageTable(); err != nil {
return err
}
if err := createHasSwitchPermissionTable(); err != nil {
return err
}
if err := createNotificationTable(); err != nil {
return err
}
if err := initAdminUser(adminPassword); err != nil {
return err
}
if err := createLoggingEventTable(); err != nil {
return err
}
if err := createCameraTable(); err != nil {
return err
}
if err := createHasCameraPermissionsTable(); err != nil {
return err
}
if err := createHardwareNodeTable(); err != nil {
return err
}
if err := createHomescriptTable(); err != nil {
return err
}
if err := createHomescriptArgTable(); err != nil {
return err
}
if err := createAutomationTable(); err != nil {
return err
}
if err := createScheduleTable(); err != nil {
return err
}
if err := createSchedulerSwitchesTable(); err != nil {
return err
}
if err := createReminderTable(); err != nil {
return err
}
if err := createHomescriptUrlCacheTable(); err != nil {
return err
}
if err := createWeatherTable(); err != nil {
return err
}
log.Info(fmt.Sprintf("Successfully initialized database `%s`", databaseConfig.Database))
return nil
}
// Is used on the very first start to create the `smarthome` database
// If the `smarthome` database already exists, the existent version is used
func createDatabase() error {
dbTemp, err := sql.Open(
"mysql",
fmt.Sprintf("%s:%s@tcp(%s:%d)/",
config.Username,
config.Password,
config.Hostname,
config.Port,
))
if err != nil {
log.Error("Could not connect to intermediate database: ", err.Error())
return err
}
defer dbTemp.Close()
ctx, cancelfunc := context.WithTimeout(context.Background(), 5*time.Second)
defer cancelfunc()
res, err := dbTemp.ExecContext(
ctx,
fmt.Sprintf("CREATE DATABASE IF NOT EXISTS %s", config.Database),
)
if err != nil {
log.Error(fmt.Sprintf("Failed to create database `%s`: executing query failed: %s", config.Database, err.Error()))
return err
}
log.Trace("Successfully connected to database using intermediate connection")
rowsAffected, err := res.RowsAffected()
if err != nil {
log.Error(fmt.Sprintf("Failed to evaluate outcome of database creation: reading rows affected failed: %s", err.Error()))
return err
}
if rowsAffected == 1 {
log.Info(fmt.Sprintf("Successfully created new database `%s`", config.Database))
} else {
log.Debug(fmt.Sprintf("Skipped database creation: using existing database `%s`", config.Database))
}
return nil
}
// Is used to initialize an `admin` user when initializing the database
func initAdminUser(password string) error {
// The admin user is only created if no user with user-management privileges is present
userAdminExists := false
users, err := ListUsers()
if err != nil {
return err
}
for _, user := range users {
hasPermission, err := UserHasPermission(
user.Username,
PermissionManageUsers,
)
if err != nil {
return err
}
if hasPermission {
userAdminExists = true
}
}
if userAdminExists {
return nil
}
if err := AddUser(FullUser{
Username: "admin",
Forename: "Admin",
Surname: "User",
PrimaryColorDark: "#88FF70",
PrimaryColorLight: "#2E7D32",
Password: password,
}); err != nil {
if err.Error() != "could not add user: user already exists" {
return err
}
}
if err := AddUserPermission("admin", "*"); err != nil {
log.Error("Failed to create admin user: permission setup failed: ", err.Error())
return err
}
return nil
}