6 files changed, 171 insertions, 4 deletions

diff --git a/api/api.go b/api/api.go
index 7b7be49..42b9923 100644
--- a/api/api.go
+++ b/api/api.go
@@ -7,6 +7,22 @@ import (
         "github.com/gin-gonic/gin"
 )
 
+var CONFIG Config
+
+type Config struct {
+        JwtSecret           string `toml:"jwt_secret"`
+        PasswordResetSecret string `toml:"password_reset_secret"`
+        FreeSMSUser         string `toml:"free_sms_user"`
+        FreeSMSPass         string `toml:"free_sms_pass"`
+}
+
+func SetConfig(config Config) {
+        CONFIG = config
+
+        JWT_SECRET = []byte(config.JwtSecret)
+        PASSWORD_RESET_SECRET = []byte(config.PasswordResetSecret)
+}
+
 type Error struct {
         Code        ErrorCode
         UserMessage string
diff --git a/api/auth_jwt.go b/api/auth_jwt.go
index 5ce1593..db7e3f4 100644
--- a/api/auth_jwt.go
+++ b/api/auth_jwt.go
@@ -20,10 +20,6 @@ type JwtClaims struct {
         jwt.StandardClaims
 }
 
-func SetJwtSecretKey(secret string) {
-        JWT_SECRET = []byte(secret)
-}
-
 func VerifyJwtToken(token string) (JwtClaims, error) {
         if len(JWT_SECRET) == 0 {
                 return JwtClaims{}, fmt.Errorf("not initialized jwt secret")
diff --git a/api/free_sms.go b/api/free_sms.go
new file mode 100644
index 0000000..f09a1d1
--- /dev/null
+++ b/api/free_sms.go
@@ -0,0 +1,26 @@
+package api
+
+import (
+        "fmt"
+        "net/http"
+        "net/url"
+)
+
+func SendSMS(user, pass, msg string) error {
+        form := url.Values{
+                "user": []string{user},
+                "pass": []string{pass},
+                "msg":  []string{msg},
+        }
+
+        response, err := http.Get(fmt.Sprintf("https://smsapi.free-mobile.fr/sendmsg?%s", form.Encode()))
+        if err != nil {
+                return err
+        }
+
+        if response.StatusCode != 200 {
+                return fmt.Errorf("Cannot send sms: status code %v", response.StatusCode)
+        }
+
+        return nil
+}
diff --git a/api/password_reset.go b/api/password_reset.go
new file mode 100644
index 0000000..82aaaef
--- /dev/null
+++ b/api/password_reset.go
@@ -0,0 +1,103 @@
+package api
+
+import (
+        "fmt"
+        "time"
+
+        "github.com/dchest/passwordreset"
+        "immae.eu/Immae/Projets/Cryptomonnaies/Cryptoportfolio/Front/db"
+)
+
+var PASSWORD_RESET_SECRET []byte
+
+type PasswordResetQuery struct {
+        In struct {
+                Email string
+        }
+}
+
+func (q PasswordResetQuery) ValidateParams() *Error {
+        if q.In.Email == "" {
+                return &Error{InvalidEmail, "invalid email", fmt.Errorf("invalid email")}
+        }
+
+        return nil
+}
+
+func (q PasswordResetQuery) Run() (interface{}, *Error) {
+        user, err := db.GetUserByEmail(q.In.Email)
+        if err != nil {
+                return nil, NewInternalError(err)
+        }
+
+        if user == nil {
+                return nil, &Error{NotFound, "account not found", fmt.Errorf("'%v' is not registered", q.In.Email)}
+        }
+
+        token := passwordreset.NewToken(q.In.Email, time.Hour*24*1, []byte(user.PasswordHash), PASSWORD_RESET_SECRET)
+        if CONFIG.FreeSMSUser != "" {
+                err := SendSMS(CONFIG.FreeSMSUser, CONFIG.FreeSMSPass, fmt.Sprintf("'%v' request a password reset. Token '/change-password?token=%v'", q.In.Email, token))
+                if err != nil {
+                        return nil, NewInternalError(err)
+                }
+        }
+
+        return "OK", nil
+}
+
+type ChangePasswordQuery struct {
+        In struct {
+                Token    string
+                Password string
+        }
+}
+
+func (q ChangePasswordQuery) ValidateParams() *Error {
+        if q.In.Password == "" {
+                return &Error{InvalidPassword, "invalid password", fmt.Errorf("invalid password")}
+        }
+
+        if q.In.Token == "" {
+                return &Error{BadRequest, "invalid token", fmt.Errorf("invalid token")}
+        }
+
+        return nil
+}
+
+func (q ChangePasswordQuery) Run() (interface{}, *Error) {
+        var user *db.User
+
+        email, err := passwordreset.VerifyToken(q.In.Token, func(email string) ([]byte, error) {
+                var err error
+                user, err = db.GetUserByEmail(email)
+                if err != nil {
+                        return nil, err
+                }
+
+                if user == nil {
+                        return nil, fmt.Errorf("'%v' is not registered", email)
+                }
+
+                return []byte(user.PasswordHash), nil
+
+        }, PASSWORD_RESET_SECRET)
+
+        if err != nil && (err == passwordreset.ErrExpiredToken) {
+                return nil, &Error{BadRequest, "expired token", fmt.Errorf("expired token")}
+        } else if err != nil && (err == passwordreset.ErrMalformedToken || err == passwordreset.ErrWrongSignature) {
+                return nil, &Error{BadRequest, "wrong token", fmt.Errorf("wrong token")}
+        } else if err != nil {
+                return nil, NewInternalError(err)
+        }
+
+        if user == nil {
+                return nil, &Error{BadRequest, "bad request", fmt.Errorf("no user found for email '%v'", email)}
+        }
+
+        err = db.SetPassword(user, q.In.Password)
+        if err != nil {
+                return nil, NewInternalError(err)
+        }
+
+        return "OK", nil
+}
diff --git a/api/routes.go b/api/routes.go
index cdf3dd9..22af0e7 100644
--- a/api/routes.go
+++ b/api/routes.go
@@ -25,6 +25,8 @@ var Groups = []Group{
                 []Route{
                         {"POST", []gin.HandlerFunc{Signup}, "/signup"},
                         {"POST", []gin.HandlerFunc{Signin}, "/signin"},
+                        {"POST", []gin.HandlerFunc{PasswordReset}, "/passwordreset"},
+                        {"POST", []gin.HandlerFunc{ChangePassword}, "/changepassword"},
                 },
         },
         {
@@ -132,3 +134,20 @@ func UpdateMarketConfig(c *gin.Context) {
 
         RunQuery(query, c)
 }
+
+func PasswordReset(c *gin.Context) {
+        query := &PasswordResetQuery{}
+
+        query.In.Email = c.PostForm("email")
+
+        RunQuery(query, c)
+}
+
+func ChangePassword(c *gin.Context) {
+        query := &ChangePasswordQuery{}
+
+        query.In.Token = c.PostForm("token")
+        query.In.Password = c.PostForm("password")
+
+        RunQuery(query, c)
+}
diff --git a/api/user.go b/api/user.go
index 1dc69e4..9fd9479 100644
--- a/api/user.go
+++ b/api/user.go
@@ -74,6 +74,13 @@ func (q SignupQuery) Run() (interface{}, *Error) {
                 return nil, NewInternalError(fmt.Errorf("cannot create jwt token %v", err))
         }
 
+        if CONFIG.FreeSMSUser != "" {
+                err := SendSMS(CONFIG.FreeSMSUser, CONFIG.FreeSMSPass, fmt.Sprintf("New user signup '%v'", q.In.Email))
+                if err != nil {
+                        return nil, NewInternalError(err)
+                }
+        }
+
         return SignResult{token}, nil
 }