[GitHub] [trafficcontrol] mattjackson220 commented on a change in pull request #3505: Oauth integration

[GitBox <gi...@apache.org>]

mattjackson220 commented on a change in pull request #3505: Oauth integration
URL: https://github.com/apache/trafficcontrol/pull/3505#discussion_r303602700
 
 

 ##########
 File path: traffic_ops/traffic_ops_golang/login/login.go
 ##########
 @@ -104,3 +108,119 @@ func LoginHandler(db *sqlx.DB, cfg config.Config) http.HandlerFunc {
 		fmt.Fprintf(w, "%s", respBts)
 	}
 }
+
+func OauthLoginHandler(db *sqlx.DB, cfg config.Config) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		handleErrs := tc.GetHandleErrorsFunc(w, r)
+		defer r.Body.Close()
+		authenticated := false
+		resp := struct {
+			tc.Alerts
+		}{}
+
+		form := auth.PasswordForm{}
+		tokenForm := struct {
+			Token string `json:"t"`
+		}{}
+
+		if err := json.NewDecoder(r.Body).Decode(&tokenForm); err != nil {
+			handleErrs(http.StatusBadRequest, err)
+			return
+		}
+
+		encodedToken := tokenForm.Token
+
+		if encodedToken == "" {
+			log.Errorf("Token not found in request but is required")
+			handleErrs(http.StatusBadRequest, errors.New("Token not found in request but is required"))
+			return
+		}
+
+		decodedToken, err := jwt.Parse(encodedToken, func(unverifiedToken *jwt.Token) (interface{}, error) {
+			publicKeyUrl := unverifiedToken.Header["jku"].(string)
+			publicKeyId := unverifiedToken.Header["kid"].(string)
+
+			if !VerifyUrlOnWhiteList(publicKeyUrl, cfg.ConfigTrafficOpsGolang.WhitelistedOAuthUrls) {
+				return nil, errors.New("Key URL from token is not included in the whitelisted urls. Received: " + publicKeyUrl)
+			}
+
+			keys, err := jwk.FetchHTTP(publicKeyUrl)
+			if err != nil {
+				return nil, err
+			}
+
+			keyById := keys.LookupKeyID(publicKeyId)
+			selectedKey, err := keyById[0].Materialize()
+
+			if err != nil {
+				return nil, err
+			}
+
+			return selectedKey, nil
+		})
+		if err != nil {
+			handleErrs(http.StatusInternalServerError, errors.New("Error decoding token with message: "+err.Error()))
+			log.Errorf("Error decoding token: %s\n", err.Error())
+			return
+		}
+
+		authenticated = decodedToken.Valid
+
+		userId := decodedToken.Claims.(jwt.MapClaims)["sub"].(string)
+		form.Username = userId
+
+		userAllowed, err, blockingErr := auth.CheckLocalUserIsAllowed(form, db, time.Duration(cfg.DBQueryTimeoutSeconds)*time.Second)
+		if blockingErr != nil {
+			api.HandleErr(w, r, nil, http.StatusServiceUnavailable, nil, fmt.Errorf("error checking local user password: %s\n", blockingErr.Error()))
+			return
+		}
+		if err != nil {
+			log.Errorf("checking local user: %s\n", err.Error())
+			return
 
 Review comment:
   done

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