102 lines
2.2 KiB
Go
102 lines
2.2 KiB
Go
package repositories
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import (
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"database/sql"
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"fmt"
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"go-cook/api/models"
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"time"
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"github.com/huandu/go-sqlbuilder"
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"golang.org/x/crypto/bcrypt"
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)
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// Creates a new instance of UserRepository with the bound sql
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func NewUserRepository(conn *sql.DB) UserRepository {
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return UserRepository{
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connection: conn,
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}
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}
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type UserRepository struct {
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connection *sql.DB
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}
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func (ur UserRepository) GetByName(name string) (models.UserModel, error) {
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builder := sqlbuilder.NewSelectBuilder()
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builder.Select("*").From("users").Where(
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builder.E("Name", name),
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)
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query, args := builder.Build()
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rows, err := ur.connection.Query(query, args...)
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if err != nil {
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return models.UserModel{}, err
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}
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return ur.processRows(rows)[0], nil
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}
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func (ur UserRepository) NewUser(name, password string) (int64, error) {
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passwordBytes := []byte(password)
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hash, err := bcrypt.GenerateFromPassword(passwordBytes, bcrypt.DefaultCost)
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if err != nil {
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return 0, err
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}
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dt := time.Now()
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queryBuilder := sqlbuilder.NewInsertBuilder()
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queryBuilder.InsertInto("users")
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queryBuilder.Cols("Name", "Hash", "LastUpdated", "CreatedAt")
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queryBuilder.Values(name, string(hash), dt, dt)
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query, args := queryBuilder.Build()
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_, err = ur.connection.Exec(query, args...)
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if err != nil {
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return 0, err
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}
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return 1, nil
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}
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// If the hash matches what we have in the database, an error will not be returned.
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// If the user does not exist or the hash does not match, an error will be returned
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func (ur UserRepository) CheckUserHash(name, password string) error {
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record, err := ur.GetByName(name)
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if err != nil {
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return err
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}
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err = bcrypt.CompareHashAndPassword([]byte(record.Hash), []byte(password))
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if err != nil {
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return err
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}
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return nil
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}
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func (ur UserRepository) processRows(rows *sql.Rows) []models.UserModel {
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items := []models.UserModel{}
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for rows.Next() {
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var id int
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var name string
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var hash string
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var createdAt time.Time
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var lastUpdated time.Time
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err := rows.Scan(&id, &name, &hash, &createdAt, &lastUpdated)
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if err != nil {
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fmt.Println(err)
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}
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items = append(items, models.UserModel{
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Id: id,
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Name: name,
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Hash: hash,
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CreatedAt: createdAt,
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LastUpdated: lastUpdated,
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})
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}
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return items
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}
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