api/user.go

   1 package api
   2
   3 import (
   4         "fmt"
   5         "regexp"
   6         "strconv"
   7         "time"
   8
   9         "github.com/dchest/passwordreset"
  10         "github.com/gin-gonic/gin"
  11
  12         "immae.eu/Immae/Projets/Cryptomonnaies/Cryptoportfolio/Front/db"
  13 )
  14
  15 const (
  16         VALID_EMAIL_REGEX = `(?i)^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$`
  17 )
  18
  19 func UserConfirmed(c *gin.Context) *Error {
  20         user, exists := c.Get("user")
  21
  22         if !exists {
  23                 return &Error{NotAuthorized, "not authorized", fmt.Errorf("no user key in context")}
  24         }
  25
  26         if user.(db.User).Status != db.Confirmed {
  27                 return &Error{UserNotConfirmed, "user awaiting admin validation", fmt.Errorf("user '%v' not confirmed", user)}
  28         }
  29
  30         return nil
  31 }
  32
  33 func UserIsAdmin(c *gin.Context) *Error {
  34         user, exists := c.Get("user")
  35
  36         if !exists {
  37                 return &Error{NotAuthorized, "not authorized", fmt.Errorf("no user key in context")}
  38         }
  39
  40         if user.(db.User).Role != db.RoleAdmin {
  41                 return &Error{NotAuthorized, "not authorized", fmt.Errorf("user '%v' is not admin", user)}
  42         }
  43
  44         return nil
  45 }
  46
  47 func GetUser(c *gin.Context) db.User {
  48         user, _ := c.Get("user")
  49
  50         return user.(db.User)
  51 }
  52
  53 func IsValidEmailAddress(email string) bool {
  54         r := regexp.MustCompile(VALID_EMAIL_REGEX)
  55
  56         return r.MatchString(email)
  57 }
  58
  59 type SignParams struct {
  60         Email    string
  61         Password string
  62 }
  63
  64 type SignResult struct {
  65         Token string `json:"token"`
  66 }
  67
  68 func (s SignParams) Validate() *Error {
  69         if !IsValidEmailAddress(s.Email) {
  70                 return &Error{InvalidEmail, "invalid email", fmt.Errorf("'%v' is not a valid email", s.Email)}
  71         }
  72
  73         if s.Password == "" {
  74                 return &Error{InvalidPassword, "invalid password", fmt.Errorf("invalid password")}
  75         }
  76
  77         return nil
  78 }
  79
  80 type SignupQuery struct {
  81         In SignParams
  82 }
  83
  84 func (q SignupQuery) ValidateParams() *Error {
  85         return q.In.Validate()
  86 }
  87
  88 func (q SignupQuery) Run() (interface{}, *Error) {
  89         user, err := db.GetUserByEmail(q.In.Email)
  90         if err != nil {
  91                 return nil, NewInternalError(err)
  92         }
  93
  94         if user != nil {
  95                 return nil, &Error{EmailExists, "email already taken", fmt.Errorf("'%v' is already registered '%v'", q.In.Email, user)}
  96         }
  97
  98         newUser := db.User{Email: q.In.Email, Status: db.AwaitingConfirmation}
  99         newUser.PasswordHash, err = db.HashPassword(q.In.Password)
 100         if err != nil {
 101                 return nil, NewInternalError(err)
 102         }
 103
 104         err = db.InsertUser(&newUser)
 105         if err != nil {
 106                 return nil, NewInternalError(err)
 107         }
 108
 109         token, err := CreateJwtToken(newUser.Id)
 110         if err != nil {
 111                 return nil, NewInternalError(fmt.Errorf("cannot create jwt token %v", err))
 112         }
 113
 114         if CONFIG.FreeSMSUser != "" {
 115                 err := SendSMS(CONFIG.FreeSMSUser, CONFIG.FreeSMSPass, fmt.Sprintf("New user signup '%v'", q.In.Email))
 116                 if err != nil {
 117                         return nil, NewInternalError(err)
 118                 }
 119         }
 120
 121         configMap := make(map[string]string)
 122         configMap["key"] = ""
 123         configMap["secret"] = ""
 124
 125         _, err = db.SetUserMarketConfig(newUser.Id, "poloniex", configMap)
 126         if err != nil {
 127                 return nil, NewInternalError(err)
 128         }
 129
 130         if MAIL_CONFIG.IsEnabled {
 131                 mailConfirmationToken := passwordreset.NewToken(q.In.Email, time.Hour*24*1, []byte(strconv.FormatUint(uint64(newUser.Status), 10)), PASSWORD_RESET_SECRET)
 132                 err = SendConfirmationMail(q.In.Email, mailConfirmationToken)
 133                 if err != nil {
 134                         return nil, NewInternalError(err)
 135                 }
 136         }
 137
 138         if CONFIG.FreeSMSUser != "" {
 139                 err := SendSMS(CONFIG.FreeSMSUser, CONFIG.FreeSMSPass, fmt.Sprintf("'%v' request a password reset. Token '/change-password?token=%v'", q.In.Email, token))
 140                 if err != nil {
 141                         return nil, NewInternalError(err)
 142                 }
 143         }
 144
 145         return SignResult{token}, nil
 146 }
 147
 148 type SigninQuery struct {
 149         In SignParams
 150 }
 151
 152 func (q SigninQuery) ValidateParams() *Error {
 153         return q.In.Validate()
 154 }
 155
 156 func (q SigninQuery) Run() (interface{}, *Error) {
 157         user, err := db.GetUserByEmail(q.In.Email)
 158         if err != nil {
 159                 return nil, NewInternalError(err)
 160         }
 161
 162         if user == nil {
 163                 return nil, &Error{InvalidCredentials, "invalid credentials", fmt.Errorf("no email '%v' found", q.In.Email)}
 164         }
 165
 166         err = db.ValidatePassword(q.In.Password, user.PasswordHash)
 167         if err != nil {
 168                 return nil, &Error{InvalidCredentials, "invalid credentials", err}
 169         }
 170
 171         token, err := CreateJwtToken(user.Id)
 172         if err != nil {
 173                 return nil, NewInternalError(err)
 174         }
 175
 176         return SignResult{token}, nil
 177 }
 178
 179 type ConfirmEmailQuery struct {
 180         In struct {
 181                 Token string
 182         }
 183 }
 184
 185 func (q ConfirmEmailQuery) ValidateParams() *Error {
 186
 187         if q.In.Token == "" {
 188                 return &Error{BadRequest, "invalid token", fmt.Errorf("invalid token")}
 189         }
 190
 191         return nil
 192 }
 193
 194 func (q ConfirmEmailQuery) Run() (interface{}, *Error) {
 195         var user *db.User
 196
 197         email, err := passwordreset.VerifyToken(q.In.Token, func(email string) ([]byte, error) {
 198                 var err error
 199                 user, err = db.GetUserByEmail(email)
 200                 if err != nil {
 201                         return nil, err
 202                 }
 203
 204                 if user == nil {
 205                         return nil, fmt.Errorf("'%v' is not registered", email)
 206                 }
 207
 208                 return []byte(strconv.FormatUint(uint64(user.Status), 10)), nil
 209
 210         }, PASSWORD_RESET_SECRET)
 211
 212         if err != nil && (err == passwordreset.ErrExpiredToken) {
 213                 return nil, &Error{BadRequest, "expired token", fmt.Errorf("expired token")}
 214         } else if err != nil && (err == passwordreset.ErrMalformedToken || err == passwordreset.ErrWrongSignature) {
 215                 return nil, &Error{BadRequest, "wrong token", fmt.Errorf("wrong token")}
 216         } else if err != nil {
 217                 return nil, NewInternalError(err)
 218         }
 219
 220         if user == nil {
 221                 return nil, &Error{BadRequest, "bad request", fmt.Errorf("no user found for email '%v'", email)}
 222         }
 223
 224         err = db.SetUserStatus(user, db.Confirmed)
 225         if err != nil {
 226                 return nil, NewInternalError(err)
 227         }
 228
 229         return nil, nil
 230 }
 231
 232 type UserAccountQuery struct {
 233         In struct {
 234                 User db.User
 235         }
 236         Out struct {
 237                 Email string `json:"email"`
 238         }
 239 }
 240
 241 func (q UserAccountQuery) ValidateParams() *Error {
 242         return nil
 243 }
 244
 245 func (q UserAccountQuery) Run() (interface{}, *Error) {
 246         q.Out.Email = q.In.User.Email
 247
 248         return q.Out, nil
 249 }