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