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package main | |
import ( | |
"bytes" | |
"context" | |
"crypto/tls" | |
"encoding/json" | |
"fmt" | |
"golang.org/x/oauth2" | |
"golang.org/x/oauth2/microsoft" | |
"io/ioutil" | |
"math/rand" | |
"net/http" | |
"strconv" | |
"time" | |
) | |
func main() { | |
msConfig := &oauth2.Config{ | |
ClientID: "CLIENT_ID", | |
ClientSecret: "CLIENT_SECRET", | |
Endpoint: microsoft.LiveConnectEndpoint, | |
RedirectURL: "http://localhost", | |
Scopes: []string{"XboxLive.signin", "XboxLive.offline_access"}, | |
} | |
state := "lol" + strconv.Itoa(int(rand.Int63())) | |
rand.Seed(time.Now().UnixNano()) | |
fmt.Println(msConfig.AuthCodeURL(state)) | |
x := make(chan *oauth2.Token) | |
// This is a simple HTTP server for simply relaying the token exchange | |
// I will provide a better practical example for in production solutions *hopefully* soon if someone doesn't beat me to it | |
http.HandleFunc("/", func(writer http.ResponseWriter, request *http.Request) { | |
// verify that it is the correct state | |
if state == request.URL.Query().Get("state") { | |
// obtain the code from the URL and make the exchange to get the token. | |
token, err := msConfig.Exchange(context.Background(), request.URL.Query().Get("code")) | |
if err != nil { | |
panic(err) | |
} | |
// pass it along to the channel to actually use the token | |
x <- token | |
} | |
}) | |
go func() { | |
http.ListenAndServe(":80", nil) | |
}() | |
select { | |
case token := <-x: | |
{ | |
client := msConfig.Client(context.Background(), token) | |
client.Transport = &http.Transport{ | |
TLSClientConfig: &tls.Config{ | |
Renegotiation: tls.RenegotiateOnceAsClient, | |
InsecureSkipVerify: true, | |
}, | |
} | |
data := map[string]interface{}{ | |
"RelyingParty": "http://auth.xboxlive.com", | |
"TokenType": "JWT", | |
"Properties": map[string]interface{}{ | |
"AuthMethod": "RPS", | |
"SiteName": "user.auth.xboxlive.com", | |
"RpsTicket": "d=" + token.AccessToken, | |
}, | |
} | |
encoded, _ := json.Marshal(data) | |
request, _ := http.NewRequest("POST", "https://user.auth.xboxlive.com/user/authenticate", bytes.NewReader(encoded)) | |
request.Header.Set("Content-Type", "application/json") | |
request.Header.Set("Accept", "application/json") | |
request.Header.Set("x-xbl-contract-version", "1") | |
resp, err := client.Do(request) | |
if err != nil { | |
fmt.Println(err) | |
} else { | |
b, _ := ioutil.ReadAll(resp.Body) | |
var data map[string]interface{} | |
json.Unmarshal(b, &data) | |
// lol this is terrible. use a struct | |
uhs := data["DisplayClaims"].(map[string]interface{})["xui"].([]interface{})[0].(map[string]interface{})["uhs"].(string) | |
token := data["Token"].(string) | |
body := map[string]interface{}{ | |
"Properties": map[string]interface{}{ | |
"SandboxId": "RETAIL", | |
"UserTokens": []string{ | |
token, | |
}, | |
}, | |
"RelyingParty": "rp://api.minecraftservices.com/", | |
"TokenType": "JWT", | |
} | |
encoded, _ := json.Marshal(body) | |
request, _ := http.NewRequest("POST", "https://xsts.auth.xboxlive.com/xsts/authorize", bytes.NewReader(encoded)) | |
request.Header.Set("Content-Type", "application/json") | |
request.Header.Set("Accept", "application/json") | |
request.Header.Set("x-xbl-contract-version", "1") | |
resp, err := client.Do(request) | |
if err != nil { | |
fmt.Println(err) | |
} else { | |
b, _ := ioutil.ReadAll(resp.Body) | |
var jsonResponse map[string]interface{} | |
json.Unmarshal(b, &jsonResponse) | |
// Hold on to this one | |
xstsToken := jsonResponse["Token"].(string) | |
body := map[string]interface{}{} | |
body["identityToken"] = "XBL3.0 x=" + uhs + ";" + xstsToken | |
body["ensureLegacyEnabled"] = true | |
// | |
encoded, _ := json.Marshal(body) | |
request, _ := http.NewRequest("POST", "https://api.minecraftservices.com/authentication/login_with_xbox", bytes.NewReader(encoded)) | |
response, _ := client.Do(request) | |
// This is minecraft's token | |
minecraftResponse, _ := ioutil.ReadAll(response.Body) | |
fmt.Println(string(minecraftResponse)) | |
} | |
} | |
} | |
} | |
} |
How exactly does this work?
It creates a http server for the token to get logged to, but how does it get back to the client?
Uses a channel to send the token from the router function to the actual authentication function. If you know how OAuth2 works, it's redirecting the browser to localhost:80/?code=xxxx
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How exactly does this work?
It creates a http server for the token to get logged to, but how does it get back to the client?