要获取Android OAuth 2.0和OpenID Connect提供者的示例代码,您可以按照以下步骤操作:
使用Android Studio创建一个新的Android项目。
在app级别的build.gradle文件中,添加以下依赖项:
implementation 'com.google.android.gms:play-services-auth:19.0.0'
implementation 'com.squareup.okhttp3:okhttp:4.9.1'
implementation 'com.squareup.okhttp3:logging-interceptor:4.9.1'
implementation 'com.squareup.okhttp3:okhttp-urlconnection:4.9.1'
implementation 'com.squareup.okio:okio:2.9.0'
OAuthUtils.java
,并添加以下代码:import android.content.Context;
import android.net.Uri;
import android.util.Base64;
import com.squareup.okhttp.Interceptor;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.Response;
import com.squareup.okhttp.logging.HttpLoggingInterceptor;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.IOException;
public class OAuthUtils {
private static final String AUTHORIZATION_ENDPOINT = "https://your-authorization-endpoint";
private static final String TOKEN_ENDPOINT = "https://your-token-endpoint";
private static final String CLIENT_ID = "your-client-id";
private static final String CLIENT_SECRET = "your-client-secret";
private static final String REDIRECT_URI = "your-redirect-uri";
private static final String SCOPE = "your-scope";
private static final String RESPONSE_TYPE = "code";
public static String buildAuthorizationUrl() {
Uri.Builder builder = Uri.parse(AUTHORIZATION_ENDPOINT).buildUpon();
builder.appendQueryParameter("client_id", CLIENT_ID);
builder.appendQueryParameter("redirect_uri", REDIRECT_URI);
builder.appendQueryParameter("response_type", RESPONSE_TYPE);
builder.appendQueryParameter("scope", SCOPE);
return builder.build().toString();
}
public static String getToken(Context context, String authorizationCode) throws IOException, JSONException {
OkHttpClient client = new OkHttpClient();
HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
client.interceptors().add(loggingInterceptor);
String credentials = CLIENT_ID + ":" + CLIENT_SECRET;
String basicAuth = "Basic " + Base64.encodeToString(credentials.getBytes(), Base64.NO_WRAP);
Request request = new Request.Builder()
.url(TOKEN_ENDPOINT)
.addHeader("Authorization", basicAuth)
.post(new MultipartBuilder()
.type(MultipartBuilder.FORM)
.addFormDataPart("grant_type", "authorization_code")
.addFormDataPart("code", authorizationCode)
.addFormDataPart("redirect_uri", REDIRECT_URI)
.build())
.build();
Response response = client.newCall(request).execute();
String responseBody = response.body().string();
JSONObject jsonObject = new JSONObject(responseBody);
return jsonObject.getString("access_token");
}
}
MainActivity.java
,您可以使用以下代码启动OAuth流程:import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
private static final int AUTH_REQUEST_CODE = 100;
private Button authButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
authButton = findViewById(R.id.auth_button);
authButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String authorizationUrl = OAuthUtils.buildAuthorizationUrl();
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(authorizationUrl));
startActivityForResult(intent, AUTH_REQUEST_CODE);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == AUTH_REQUEST_CODE && resultCode == RESULT_OK) {
String authorizationCode = data.getStringExtra("code");
getToken(authorizationCode);
}
}
private void getToken(String authorizationCode) {
new AsyncTask() {
@Override
protected String doInBackground(String... params) {
try {
return OAuthUtils.getToken(MainActivity.this, params[0]);
} catch (IOException | JSONException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String token) {
super.onPostExecute(token);
if (token != null) {
// 使用访问令牌进行进一