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main.go
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main.go
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/*
* Copyright © 2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @author Aeneas Rekkas <aeneas+oss@aeneas.io>
* @Copyright 2017-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
* @license Apache-2.0
*/
package main
import (
"log"
"net/http"
"os"
"io/ioutil"
"net/http/cookiejar"
"strings"
"fmt"
"net/url"
"golang.org/x/oauth2"
)
func main() {
conf := oauth2.Config{
ClientID: os.Getenv("OAUTH2_CLIENT_ID"),
ClientSecret: os.Getenv("OAUTH2_CLIENT_SECRET"),
Endpoint: oauth2.Endpoint{
AuthURL: strings.TrimRight(os.Getenv("HYDRA_URL"), "/") + "/oauth2/auth",
TokenURL: strings.TrimRight(os.Getenv("HYDRA_URL"), "/") + "/oauth2/token",
},
Scopes: strings.Split(os.Getenv("OAUTH2_SCOPE"), ","),
RedirectURL: os.Getenv("REDIRECT_URL"),
}
au := conf.AuthCodeURL("some-stupid-state-foo") + os.Getenv("OAUTH2_EXTRA")
c, err := cookiejar.New(&cookiejar.Options{})
if err != nil {
log.Fatalf("Unable to create cookie jar: %s", err)
}
u, _ := url.Parse("http://127.0.0.1")
if os.Getenv("AUTH_COOKIE") != "" {
c.SetCookies(u, []*http.Cookie{{Name: "oauth2_authentication_session", Value: os.Getenv("AUTH_COOKIE")}})
}
resp, err := (&http.Client{
Jar: c,
// Hack to fix cookie across domains
CheckRedirect: func(req *http.Request, via []*http.Request) error {
if len(via) > 0 && req.Header.Get("cookie") == "" {
req.Header.Set("Cookie", via[len(via)-1].Header.Get("Cookie"))
}
return nil
},
}).Get(au)
if err != nil {
log.Fatalf("Unable to make request: %s", err)
}
defer resp.Body.Close()
out, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Fatalf("Unable to read body: %s", err)
}
if resp.StatusCode != http.StatusOK {
log.Fatalf("Got status code %d and body %s", resp.StatusCode, out)
}
for _, c := range c.Cookies(u) {
if c.Name == "oauth2_authentication_session" {
fmt.Print(c.Value)
}
}
}