Start of big cleanup

database.go

@@ -0,0 +1,112 @@
+package main
+
+import (
+	"database/sql"
+	"log"
+
+	"golang.org/x/crypto/bcrypt"
+
+	"stevenlr.com/timer/model"
+)
+
+func initializeDatabaseV1(db *sql.DB) error {
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	_, err = tx.Exec(`PRAGMA user_version = 1`)
+	if err != nil {
+		return err
+	}
+
+	_, err = tx.Exec(`
+		CREATE TABLE Timer (
+			Id			BLOB	NOT NULL UNIQUE,
+			Name		TEXT	NOT NULL,
+			StartTime	TEXT	NOT NULL,
+			EndTime		TEXT	NOT NULL,
+			Owner		BLOB	NOT NULL,
+			Token		TEXT	NOT NULL UNIQUE,
+			PRIMARY KEY (Id)
+		)`)
+	if err != nil {
+		return err
+	}
+
+	_, err = tx.Exec(`
+		CREATE TABLE User (
+			Id			BLOB	NOT NULL UNIQUE,
+			Name		TEXT	NOT NULL,
+			Salt		TEXT	NOT NULL,
+			Password	BLOB	NOT NULL,
+			PRIMARY KEY (id)
+		)`)
+	if err != nil {
+		return err
+	}
+
+	userName := "admin"
+	userPassword := "admin"
+	salt, err := GenerateRandomString(33)
+	if err != nil {
+		return err
+	}
+
+	password, err := bcrypt.GenerateFromPassword([]byte(salt+userPassword), bcrypt.MinCost)
+	if err != nil {
+		return err
+	}
+
+	_, err = tx.Exec(`INSERT INTO User VALUES ($1, $2, $3, $4)`, model.MakeUUID(), userName, salt, password)
+	if err != nil {
+		return err
+	}
+
+	return tx.Commit()
+}
+
+func migrateDatabaseV2(db *sql.DB) error {
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	_, err = tx.Exec(`PRAGMA user_version = 2`)
+	if err != nil {
+		return err
+	}
+
+	_, err = tx.Exec("CREATE INDEX TimerTokenIndex ON Timer(Token)")
+	if err != nil {
+		return err
+	}
+
+	return tx.Commit()
+}
+
+func InitializeDatabase(db *sql.DB) error {
+	initialVersion := 0
+	row := db.QueryRow("PRAGMA user_version")
+	row.Scan(&initialVersion)
+
+	if initialVersion < 1 {
+		log.Println("Initializing DB V1")
+		err := initializeDatabaseV1(db)
+		if err != nil {
+			return err
+		}
+	}
+
+	if initialVersion < 2 {
+		log.Println("Migrating DB to V2")
+		err := migrateDatabaseV2(db)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}