108 lines
2.7 KiB
Go
108 lines
2.7 KiB
Go
/*
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* Copyright 2024 Jonas Kaninda
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package pkg
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import (
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"context"
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"encoding/json"
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"fmt"
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"github.com/jedib0t/go-pretty/v6/table"
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"golang.org/x/oauth2"
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"io"
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"net"
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"net/http"
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)
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// printRoute prints routes
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func printRoute(routes []Route) {
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t := table.NewWriter()
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t.AppendHeader(table.Row{"Name", "Path", "Rewrite", "Destination"})
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for _, route := range routes {
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if len(route.Backends) != 0 {
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t.AppendRow(table.Row{route.Name, route.Path, route.Rewrite, fmt.Sprintf("backends: [%d]", len(route.Backends))})
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} else {
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t.AppendRow(table.Row{route.Name, route.Path, route.Rewrite, route.Destination})
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}
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}
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fmt.Println(t.Render())
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}
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// getRealIP gets user real IP
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func getRealIP(r *http.Request) string {
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if ip := r.Header.Get("X-Real-IP"); ip != "" {
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return ip
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}
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if ip := r.Header.Get("X-Forwarded-For"); ip != "" {
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return ip
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}
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return r.RemoteAddr
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}
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// getUserInfo returns struct of UserInfo
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func (oauth *OauthRulerMiddleware) getUserInfo(token *oauth2.Token) (UserInfo, error) {
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oauthConfig := oauth2Config(oauth)
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// Call the user info endpoint with the token
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client := oauthConfig.Client(context.Background(), token)
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resp, err := client.Get(oauth.Endpoint.UserInfoURL)
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if err != nil {
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return UserInfo{}, err
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}
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defer func(Body io.ReadCloser) {
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err := Body.Close()
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if err != nil {
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return
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}
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}(resp.Body)
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// Parse the user info
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var userInfo UserInfo
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if err := json.NewDecoder(resp.Body).Decode(&userInfo); err != nil {
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return UserInfo{}, err
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}
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return userInfo, nil
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}
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// validateIPAddress checks if the input is a valid IP address (IPv4 or IPv6)
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func validateIPAddress(ip string) bool {
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return net.ParseIP(ip) != nil
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}
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// validateCIDR checks if the input is a valid CIDR notation
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func validateCIDR(cidr string) bool {
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_, _, err := net.ParseCIDR(cidr)
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return err == nil
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}
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// isIPOrCIDR determines whether the input is an IP address or a CIDR
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func isIPOrCIDR(input string) (isIP bool, isCIDR bool) {
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// Check if it's a valid IP address
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if net.ParseIP(input) != nil {
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return true, false
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}
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// Check if it's a valid CIDR
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if _, _, err := net.ParseCIDR(input); err == nil {
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return false, true
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}
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// Neither IP nor CIDR
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return false, false
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}
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