我将使用keyloak保护我的golang应用程序,但是keyloak本身不支持Go语言.
在GitHub中,有一些Go Adaptor作为开放项目实现了OpenID connect协议作为提供者服务,但它们没有提供如何将库与应用程序集成的示例或文档.
我如何使用golang与Keyclope交互?
我将使用keyloak保护我的golang应用程序,但是keyloak本身不支持Go语言.
在GitHub中,有一些Go Adaptor作为开放项目实现了OpenID connect协议作为提供者服务,但它们没有提供如何将库与应用程序集成的示例或文档.
我如何使用golang与Keyclope交互?
正如您所指出的,没有针对Golang的官方 keys 斗篷适配器. 但它的实施是相当直接的.这里有一小段路可以走过go .
在本例中,我将使用官方的keyloak docker图像来启动服务器. 使用的版本是4.1.0.最终版本.不过,我认为这也适用于旧版本的KeyCloak.
docker run -d -p 8080:8080 -e KEYCLOAK_USER=keycloak -e KEYCLOAK_PASSWORD=k --name keycloak jboss/keycloak:4.1.0.Final
服务器启动并运行后,您可以在浏览器中打开localhost:8080/auth
,导航到管理控制台,并使用用户名keycloak
和k
作为相应密码登录.
我不会完成创建域/客户端/用户的完整过程.你可以在下面的 https://www.keycloak.org/docs/latest/server_admin/index.html#admin-console个
以下只是我为重现此示例所做工作的概要:
demo
的领域demo-client
的客户端(将"访问类型"更改为机密)http://localhost:8181/demo/callback
作为有效的重定向URI.生成的keycloak.json(从Installation选项卡获得)如下所示:
{
"realm": "demo",
"auth-server-url": "http://localhost:8080/auth",
"ssl-required": "none",
"resource": "demo-client",
"credentials": {
"secret": "cbfd6e04-a51c-4982-a25b-7aaba4f30c81"
},
"confidential-port": 0
}
不过要注意,你的秘密会有所不同.
我们go 围棋服务器那里吧.我用github.com/coreos/go-oidc
包来搬运重物:
package main
import (
"context"
"encoding/json"
"log"
"net/http"
"strings"
oidc "github.com/coreos/go-oidc"
"golang.org/x/oauth2"
)
func main() {
configURL := "http://localhost:8080/auth/realms/demo"
ctx := context.Background()
provider, err := oidc.NewProvider(ctx, configURL)
if err != nil {
panic(err)
}
clientID := "demo-client"
clientSecret := "cbfd6e04-a51c-4982-a25b-7aaba4f30c81"
redirectURL := "http://localhost:8181/demo/callback"
// Configure an OpenID Connect aware OAuth2 client.
oauth2Config := oauth2.Config{
ClientID: clientID,
ClientSecret: clientSecret,
RedirectURL: redirectURL,
// Discovery returns the OAuth2 endpoints.
Endpoint: provider.Endpoint(),
// "openid" is a required scope for OpenID Connect flows.
Scopes: []string{oidc.ScopeOpenID, "profile", "email"},
}
state := "somestate"
oidcConfig := &oidc.Config{
ClientID: clientID,
}
verifier := provider.Verifier(oidcConfig)
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
rawAccessToken := r.Header.Get("Authorization")
if rawAccessToken == "" {
http.Redirect(w, r, oauth2Config.AuthCodeURL(state), http.StatusFound)
return
}
parts := strings.Split(rawAccessToken, " ")
if len(parts) != 2 {
w.WriteHeader(400)
return
}
_, err := verifier.Verify(ctx, parts[1])
if err != nil {
http.Redirect(w, r, oauth2Config.AuthCodeURL(state), http.StatusFound)
return
}
w.Write([]byte("hello world"))
})
http.HandleFunc("/demo/callback", func(w http.ResponseWriter, r *http.Request) {
if r.URL.Query().Get("state") != state {
http.Error(w, "state did not match", http.StatusBadRequest)
return
}
oauth2Token, err := oauth2Config.Exchange(ctx, r.URL.Query().Get("code"))
if err != nil {
http.Error(w, "Failed to exchange token: "+err.Error(), http.StatusInternalServerError)
return
}
rawIDToken, ok := oauth2Token.Extra("id_token").(string)
if !ok {
http.Error(w, "No id_token field in oauth2 token.", http.StatusInternalServerError)
return
}
idToken, err := verifier.Verify(ctx, rawIDToken)
if err != nil {
http.Error(w, "Failed to verify ID Token: "+err.Error(), http.StatusInternalServerError)
return
}
resp := struct {
OAuth2Token *oauth2.Token
IDTokenClaims *json.RawMessage // ID Token payload is just JSON.
}{oauth2Token, new(json.RawMessage)}
if err := idToken.Claims(&resp.IDTokenClaims); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
data, err := json.MarshalIndent(resp, "", " ")
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Write(data)
})
log.Fatal(http.ListenAndServe("localhost:8181", nil))
}
这个程序启动一个带有两个端点的常规http服务器.第一个("/")是处理
第二个端点("/demo/callback")用作KeyClope的回调.此端点需要在您的计算机上注册
为了测试此设置,您可以打开网页浏览器并将导航设置为http://localhost:8181
.
请求应该到达您的GO服务器,该服务器会try 对您进行身份验证.因为您没有发送令牌,所以围棋服务器
会将您重定向到 keys 斗篷进行身份验证.
您应该会看到keyloak的登录屏幕.使用您为此领域(演示/演示)创建的演示用户登录.
如果您正确配置了密钥罩,它将验证您的身份并将您重定向到围棋服务器回调.
最终结果应该是如下所示的json
{
"OAuth2Token": {
"access_token": "eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICJsc1hHR2VxSmx3UUZweWVYR0x6b2plZXBYSEhXUngtTHVJTVVLdDBmNmlnIn0.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.KERz8rBddxM9Qho3kgigX-fClWqbKY-3JcWT3JOQDoLa-prkorfa40BWlyf9ULVgjzT2d8FLJpqQIQYvucKU7Q7vFBVIjTGucUZaE7b6JGMea5H34A1i-MNm7L2CzDJ2GnBONhNwLKoftTSl0prbzwkzcVrps-JAZ6L2gssSa5hBBGJYBKAUfm1OIb57Jq0vzro3vLghZ4Ay7iNunwfcHUrxiFJfUjaU6PQwzrA5pnItOPuavJFUgso7-3JLtn3X9GQuyyZKrkDo6-gzU0JZmkQQzAXXgt43NxooryImuacwSB5xbIKY6qFkedldoOPehld1-oLv0Yy_FIwEad3uLw",
"token_type": "bearer",
"refresh_token": "eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICJsc1hHR2VxSmx3UUZweWVYR0x6b2plZXBYSEhXUngtTHVJTVVLdDBmNmlnIn0.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.FvvDW6ZSH8mlRR2zgaN1zesX14SmkCs9RrIVU4Jn1-SHVdKEA6YKur0-RUAFTObQDMLVhFFJ05AjGVGWpBrgVDcAwW2pI9saM-OHlyTJ3VfFoylgfzakVOIpbIDnHO12UaJrkOI9NWPAJdbBOzBHfsDhKbxhjg4ZX8SwlKr42rV4WWuSRcNu4_YDVO19SiXSCKXVldZ1_2S-qPvViq7VZfaoRLHuYyDvma_ByMsmib9JUkevJ8dxsYxVQ5FWaAfFanh1a1f8HxNRI-Cl180oPn1_Tqq_SYwxzBCw7Q_ENkMirwRS1a4cX9yMVEDW2uvKz2D-OiNAUK8d_ONuPEkTGQ",
"expiry": "2018-07-21T13:47:28.986686385+02:00"
},
"IDTokenClaims": {
"jti": "f4d56526-37d9-4d32-b99d-81090e92d3a7",
"exp": 1532173652,
"nbf": 0,
"iat": 1532173352,
"iss": "http://localhost:8080/auth/realms/demo",
"aud": "demo-client",
"sub": "38338c8b-ad7f-469f-8398-17989581ba12",
"typ": "ID",
"azp": "demo-client",
"auth_time": 1532173352,
"session_state": "ce865add-67b8-4905-8f03-9c1603c1ba0d",
"acr": "1",
"email_verified": true,
"preferred_username": "demo",
"email": "demo@demo.com"
}
}
您可以复制您的访问令牌,并使用curl验证服务器是否能够接受您的令牌:
# use your complete access token here
export TOKEN="eyJhbG..."
curl -H "Authorization: Bearer $TOKEN" localhost:8181
# output hello world
你可以在 token 过期后再试一次,也可以使用 token .如果你这样做了,你应该重定向到