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user.go
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user.go
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package models
import (
"crypto/sha512"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"github.com/dgrijalva/jwt-go"
"github.com/spf13/viper"
"gitlab.com/leanlabsio/kanban/modules/gitlab"
"golang.org/x/oauth2"
"strings"
"time"
)
type User struct {
Id int64
Name string
IsAdmin bool
Token *jwt.Token
Credential map[string]*Credential
AvatarUrl string
State string
Username string
Passwd string
Salt string
Email string
}
type UserNotFound struct {
msg string
}
type Credential struct {
PrivateToken string `json:"private_access_token"`
Token *oauth2.Token
}
type ResponseUser struct {
Id int64 `json:"id"`
Name string `json:"name"`
Token string `json:"token"`
Success bool `json:"success"`
}
// LoadUserByUsername is
func LoadUserByUsername(uname string) (*User, error) {
cmd := c.HGetAllMap(fmt.Sprintf("kanban:users:%s", strings.ToLower(uname)))
val, err := cmd.Result()
if err != nil {
panic(fmt.Sprintf("Redis unrecoverable error: %s", err))
}
if len(val) == 0 {
return nil, &UserNotFound{msg: "User not found"}
}
u := User{
Username: val["username"],
Passwd: val["password"],
Email: val["email"],
Name: val["name"],
}
if val["credentials"] != "" {
var cr map[string]*Credential
err = json.Unmarshal([]byte(val["credentials"]), &cr)
if err != nil {
return nil, err
}
u.Credential = cr
}
return &u, nil
}
// LoadByToken is
func LoadByToken(u *User, provider string) (*User, error) {
var user *User
switch provider {
case "gitlab":
c := gitlab.NewContext(u.Credential["gitlab"].Token, u.Credential["gitlab"].PrivateToken)
r, err := c.CurrentUser()
if err != nil {
return nil, err
}
user = mapUserFromGitlab(r)
user.Credential = u.Credential
user.Credential[provider].PrivateToken = r.PrivateToken
}
return user, nil
}
// CreateUser creates new user
func CreateUser(u *User) (*User, error) {
usr, _ := LoadUserByUsername(u.Username)
if usr != nil {
return nil, errors.New("User already exists")
}
u.EncodePasswd()
return saveUser(u)
}
// UpdateUser updates user's information.
func UpdateUser(u *User) (*User, error) {
user, err := LoadUserByUsername(u.Username)
if err != nil {
return user, err
}
if user == nil {
return user, errors.New(fmt.Sprintf("User with username %s does not exists", u.Username))
}
user.Credential = u.Credential
return saveUser(user)
}
// saveUser saved user's information.
func saveUser(u *User) (*User, error) {
val, err := json.Marshal(u.Credential)
if err != nil {
return nil, err
}
_, err = c.HMSet("kanban:users:"+strings.ToLower(u.Username),
"credentials", string(val),
"name", u.Name,
"username", u.Username,
"password", u.Passwd,
"email", u.Email,
).Result()
if err != nil {
return nil, err
}
return &User{
Name: u.Name,
Username: u.Username,
Credential: u.Credential,
Passwd: u.Passwd,
Email: u.Email,
}, nil
}
// SignedString returns user token for access
func (u *User) SignedString() (string, error) {
if u.Token == nil {
token := jwt.New(jwt.SigningMethodHS256)
token.Claims["name"] = u.Username
token.Claims["exp"] = time.Now().Add(time.Hour * 72).Unix()
return token.SignedString([]byte(viper.GetString("security.secret_key")))
}
return u.Token.SigningString()
}
// ValidatePassword checks if given password matches the one belongs to the user.
func (u *User) ValidatePassword(pass string) bool {
newUser := &User{Passwd: pass, Salt: ""}
newUser.EncodePasswd()
return u.Passwd == newUser.Passwd
}
// EncodePasswd encodes password to safe format.
func (u *User) EncodePasswd() {
hash := []byte(u.Passwd)
dig := sha512.Sum512(hash)
for i := 1; i < 5000; i++ {
dig = sha512.Sum512(append(dig[:], hash[:]...))
}
newPasswd := base64.StdEncoding.EncodeToString(dig[:])
u.Passwd = fmt.Sprintf("%s", newPasswd)
}
// mapUserFromGitlab mapped data from gitlab user to kanban user
func mapUserFromGitlab(u *gitlab.User) *User {
if u == nil {
return nil
}
return &User{
Id: u.Id,
Name: u.Name,
Username: u.Username,
AvatarUrl: u.AvatarUrl,
State: u.State,
}
}
// MarshalJSON returns the JSON encoding value.
func (u *User) MarshalJSON() ([]byte, error) {
type Alias User
return json.Marshal(struct {
Id int64 `json:"id"`
Name string `json:"name,omitempty"`
Username string `json:"username,omitempty"`
AvatarUrl string `json:"avatar_url,nil,omitempty"`
State string `json:"state,omitempty"`
}{
Id: u.Id,
Name: u.Name,
Username: u.Username,
AvatarUrl: u.AvatarUrl,
State: u.State,
})
}
func (e *UserNotFound) Error() string {
return e.msg
}