mirror of
https://github.com/evilsocket/arc.git
synced 2024-05-26 22:37:37 +03:00
80 lines
2.0 KiB
Go
80 lines
2.0 KiB
Go
/*
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* Arc - Copyleft of Simone 'evilsocket' Margaritelli.
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* evilsocket at protonmail dot com
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* https://www.evilsocket.net/
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*
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* See LICENSE.
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*/
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package middlewares
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import (
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"github.com/dgrijalva/jwt-go"
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"github.com/evilsocket/arc/config"
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"github.com/evilsocket/arc/events"
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"github.com/evilsocket/arc/utils"
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"github.com/evilsocket/islazy/log"
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"github.com/gin-gonic/gin"
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"regexp"
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"strings"
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"time"
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)
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var authTokenParser = regexp.MustCompile("^(?i)Bearer:\\s*(.+)$")
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func GenerateToken(k []byte, userId string) (string, error) {
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// Create the token
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token := jwt.New(jwt.SigningMethodHS256)
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// Set some claims
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claims := make(jwt.MapClaims)
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claims["user_id"] = userId
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claims["exp"] = time.Now().Add(time.Minute * time.Duration(config.Conf.TokenDuration)).Unix()
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token.Claims = claims
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// Sign and get the complete encoded token as a string
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tokenString, err := token.SignedString(k)
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return tokenString, err
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}
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func ValidateToken(t string, k string) (*jwt.Token, error) {
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token, err := jwt.Parse(t, func(token *jwt.Token) (interface{}, error) {
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return []byte(k), nil
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})
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return token, err
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}
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func AuthHandler() gin.HandlerFunc {
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return func(c *gin.Context) {
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user_id := c.GetString("user_id")
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// do we need to refresh session data?
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if user_id != config.Conf.Username {
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// Parse bearer token from Authorization header.
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authorization := c.Request.Header.Get("Authorization")
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m := authTokenParser.FindStringSubmatch(authorization)
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if len(m) != 2 {
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events.Add(events.InvalidToken(strings.Split(c.Request.RemoteAddr, ":")[0],
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authorization,
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nil))
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utils.Forbidden(c)
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return
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}
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// Validate token
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token := m[1]
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valid, err := ValidateToken(token, config.Conf.Secret)
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if err != nil {
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utils.Api(log.WARNING, c, "Error while validating bearer token: %s", err)
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events.Add(events.InvalidToken(strings.Split(c.Request.RemoteAddr, ":")[0],
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token,
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err))
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utils.Forbidden(c)
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return
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}
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// set session data
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c.Set("user_id", valid.Claims.(jwt.MapClaims)["user_id"])
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}
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c.Next()
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}
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}
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