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feedpanel/db/db.go

107 lines
3 KiB
Go

package paneldb
import (
"fmt"
"github.com/go-pg/pg"
"github.com/pkg/errors"
"golang.org/x/crypto/bcrypt"
)
// An User represents a user of the application.
type User struct {
ID string `sql:"uid"`
Name string `sql:"username"`
Email string `sql:"email"`
DateCreated string `sql:"date_created"`
PasswordHash string `sql:"password"`
}
func (u User) String() string {
return fmt.Sprintf("{User: %s <%s>}", u.Name, u.Email)
}
// DB represents the application database. It provides high-level methods to get and manipulate objects.
type DB struct {
PgDB *pg.DB
Schema string
}
// Setup will create schemas and tables as appropriate
func (db *DB) Setup() error {
_, err := db.PgDB.Exec(`CREATE SCHEMA IF NOT EXISTS users`)
if err != nil {
return errors.Wrap(err, "Error creating schema")
}
fmt.Println("schema created")
_, err = db.PgDB.Exec(`CREATE TABLE IF NOT EXISTS users.users (
uid UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
username varchar(64) UNIQUE NOT NULL,
email varchar(100) UNIQUE NOT NULL,
date_created TIMESTAMPTZ NOT NULL DEFAULT NOW(),
password varchar(256) NOT NULL
)`)
if err != nil {
return errors.Wrap(err, "Error creating users table")
}
fmt.Println("table created")
return nil
}
// UserAdd will add a user to the database
func (db *DB) UserAdd(username, email, pwd string) error {
stmt, err := db.PgDB.Prepare("INSERT INTO users.users (username, email, password) VALUES ($1, $2, $3)")
if err != nil {
return errors.Wrap(err, "Error preparing insert statement")
}
pwhash, err := bcrypt.GenerateFromPassword([]byte(pwd), bcrypt.DefaultCost)
if err != nil {
return errors.Wrap(err, "Error deriving password (with bcrypt)")
}
_, err = stmt.Exec(username, email, string(pwhash))
if err != nil {
return errors.Wrapf(err, "Error adding user `%s`", username)
}
return nil
}
// GetUsers returns an array of Users
func (db *DB) GetUsers() ([]User, error) {
var users []User
_, err := db.PgDB.Query(&users, "SELECT * FROM users.users")
if err != nil {
return users, errors.Wrap(err, "User enumeration failed")
}
return users, err
}
// GetUserByName Search for exact username
func (db *DB) GetUserByName(username string) (User, error) {
var user User
_, err := db.PgDB.QueryOne(&user, `SELECT * FROM users.users WHERE username = ?`, username)
if err != nil {
return user, errors.Wrap(err, "User fetch failed")
}
return user, nil
}
// GetUserByEmail searches for exact email
func (db *DB) GetUserByEmail(email string) (User, error) {
var user User
_, err := db.PgDB.QueryOne(&user, "SELECT * FROM users.users WHERE email = ?", email)
if err != nil {
return user, errors.Wrap(err, "User fetch failed")
}
return user, nil
}
// GetUserByID search for exact uid
func (db *DB) GetUserByID(uid string) (User, error) {
var user User
_, err := db.PgDB.QueryOne(&user, "SELECT * FROM users.users WHERE uid=$1", uid)
if err != nil {
return user, errors.Wrap(err, "User fetch failed")
}
return user, nil
}