forked from getdiskette/diskette-be
/
middleware.go
92 lines (76 loc) · 2.43 KB
/
middleware.go
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package middleware
import (
"github.com/getdiskette/diskette/collections"
"github.com/getdiskette/diskette/tokens"
"github.com/getdiskette/diskette/util"
"errors"
"net/http"
"github.com/labstack/echo"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
)
func CreateSessionMiddleware(userCollection *mgo.Collection, jwtKey []byte) echo.MiddlewareFunc {
return func(next echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
st := c.Request().Header().Get("X-Diskette-Session-Token")
sessionToken, err := tokens.ParseSessionToken(jwtKey, st)
if err != nil {
c.JSON(http.StatusUnauthorized, util.CreateErrResponse(err))
return err
}
var userDoc collections.UserDocument
err = userCollection.FindId(bson.ObjectIdHex(sessionToken.UserId)).One(&userDoc)
if err != nil {
err = errors.New("The session is not valid.")
c.JSON(http.StatusNotFound, util.CreateErrResponse(err))
return err
}
if sessionToken.CreatedAt.Before(userDoc.SignedOutAt) {
err = errors.New("The session has expired.")
c.JSON(http.StatusUnauthorized, util.CreateErrResponse(err))
return err
}
c.Set("sessionToken", sessionToken)
c.Set("userDoc", userDoc)
return next(c)
}
}
}
func CreateAdminSessionMiddleware(userCollection *mgo.Collection, jwtKey []byte) echo.MiddlewareFunc {
return func(next echo.HandlerFunc) echo.HandlerFunc {
return func(c echo.Context) error {
st := c.Request().Header().Get("X-Diskette-Session-Token")
sessionToken, err := tokens.ParseSessionToken(jwtKey, st)
if err != nil {
c.JSON(http.StatusUnauthorized, util.CreateErrResponse(err))
return err
}
var userDoc collections.UserDocument
err = userCollection.FindId(bson.ObjectIdHex(sessionToken.UserId)).One(&userDoc)
if err != nil {
err = errors.New("The session is not valid.")
c.JSON(http.StatusNotFound, util.CreateErrResponse(err))
return err
}
if sessionToken.CreatedAt.Before(userDoc.SignedOutAt) {
err = errors.New("The session has expired.")
c.JSON(http.StatusUnauthorized, util.CreateErrResponse(err))
return err
}
isAdmin := false
for _, role := range userDoc.Roles {
if role == "admin" {
isAdmin = true
}
}
if !isAdmin {
err = errors.New("Not admin.")
c.JSON(http.StatusUnauthorized, util.CreateErrResponse(err))
return err
}
c.Set("sessionToken", sessionToken)
c.Set("userDoc", userDoc)
return next(c)
}
}
}