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// Copyright 2014 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package models
import (
"errors"
"fmt"
"strings"
"time"
"github.com/dchest/scrypt"
)
// User types.
const (
UT_INDIVIDUAL = iota + 1
UT_ORGANIZATION
)
// Login types.
const (
LT_PLAIN = iota + 1
LT_LDAP
)
// A User represents the object of individual and member of organization.
type User struct {
Id int64
LowerName string `xorm:"unique not null"`
Name string `xorm:"unique not null"`
Email string `xorm:"unique not null"`
Passwd string `xorm:"not null"`
LoginType int
Type int
NumFollowers int
NumFollowings int
NumStars int
NumRepos int
Avatar string `xorm:"varchar(2048) not null"`
Created time.Time `xorm:"created"`
Updated time.Time `xorm:"updated"`
}
// A Follow represents
type Follow struct {
Id int64
UserId int64 `xorm:"unique(s)"`
FollowId int64 `xorm:"unique(s)"`
Created time.Time `xorm:"created"`
}
// Operation types of repository.
const (
OP_CREATE_REPO = iota + 1
OP_DELETE_REPO
OP_STAR_REPO
OP_FOLLOW_REPO
OP_COMMIT_REPO
OP_PULL_REQUEST
)
// A Action represents
type Action struct {
Id int64
UserId int64
OpType int
RepoId int64
Content string
Created time.Time `xorm:"created"`
}
var (
ErrUserAlreadyExist = errors.New("User already exist")
ErrUserNotExist = errors.New("User does not exist")
)
// IsUserExist checks if given user name exist,
// the user name should be noncased unique.
func IsUserExist(name string) (bool, error) {
return orm.Get(&User{LowerName: strings.ToLower(name)})
}
// validateUser checks if user exist.
func validateUser(name string) error {
isExist, err := IsUserExist(name)
if err != nil {
return err
} else if isExist {
return ErrUserAlreadyExist
}
return nil
}
// RegisterUser creates record of a new user.
func RegisterUser(user *User) (err error) {
if err = validateUser(user.Name); err != nil {
return err
}
_, err = orm.Insert(user)
return err
}
// UpdateUser updates user's information.
func UpdateUser(user *User) (err error) {
_, err = orm.Id(user.Id).Update(user)
return err
}
// DeleteUser completely deletes everything of the user.
func DeleteUser(user *User) error {
// TODO: check if has ownership of any repository.
_, err := orm.Delete(user)
// TODO: delete and update follower information.
return err
}
// EncodePasswd encodes password to safe format.
func (user *User) EncodePasswd(pass string) error {
newPasswd, err := scrypt.Key([]byte(user.Passwd), []byte("!#@FDEWREWR&*("), 16384, 8, 1, 64)
user.Passwd = fmt.Sprintf("%x", newPasswd)
return err
}
// LoginUserPlain validates user by raw user name and password.
func LoginUserPlain(name, passwd string) (*User, error) {
user := User{Name: name}
if err := user.EncodePasswd(passwd); err != nil {
return nil, err
}
has, err := orm.Get(&user)
if !has {
err = ErrUserNotExist
}
if err != nil {
return nil, err
}
return &user, nil
}
// FollowUser marks someone be another's follower.
func FollowUser(userId int64, followId int64) error {
session := orm.NewSession()
defer session.Close()
session.Begin()
_, err := session.Insert(&Follow{UserId: userId, FollowId: followId})
if err != nil {
session.Rollback()
return err
}
_, err = session.Exec("update user set num_followers = num_followers + 1 where id = ?", followId)
if err != nil {
session.Rollback()
return err
}
_, err = session.Exec("update user set num_followings = num_followings + 1 where id = ?", userId)
if err != nil {
session.Rollback()
return err
}
return session.Commit()
}
// UnFollowUser unmarks someone be another's follower.
func UnFollowUser(userId int64, unFollowId int64) error {
session := orm.NewSession()
defer session.Close()
session.Begin()
_, err := session.Delete(&Follow{UserId: userId, FollowId: unFollowId})
if err != nil {
session.Rollback()
return err
}
_, err = session.Exec("update user set num_followers = num_followers - 1 where id = ?", unFollowId)
if err != nil {
session.Rollback()
return err
}
_, err = session.Exec("update user set num_followings = num_followings - 1 where id = ?", userId)
if err != nil {
session.Rollback()
return err
}
return session.Commit()
}
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