使用OpenId AppAuthAndroid库时，具有隐式意图的java PendingEvent返回已取消的异常

10 月，3 周 Questions & Answers 1605

我正在尝试实现oauth2，以允许用户使用Reddit登录。我已经在reddit上用适当的重定向uri创建了我的应用程序

我所做的： 带有登录按钮的MainActivity。单击登录按钮，启动授权流。要创建授权请求，我们需要传递一个挂起的意图，库使用该意图调用我们希望它在授权成功后调用的适当组件

问题： 当使用隐式意图创建挂起的意图（在创建意图时仅设置操作字符串）时，库在调用挂起的意图时会收到一个已取消的异常。我还提到了清单文件中MainActivity的意图过滤器中的操作字符串

我尝试过的： 1.我尝试使用显式意图创建挂起的意图（定义创建意图时我要打开的活动类），我的活动的onStart被正确的意图调用。 2.我尝试直接从活动本身调用挂起的意图（带有隐式意图），结果成功地调用了它

观察： 1.如果我使用较旧版本的库（v0.2.0），带有隐式意图的挂起意图可以正常工作

OpenId AppAuth库的当前版本-0.7.1 在Android 9（Pie）上测试-OnePlus 3T

下面是我的主要活动。爪哇

package com.prateekgrover.redditline;

import 安卓x.annotation.Nullable;
import 安卓x.appcompat.app.AppCompatActivity;

import 安卓.app.PendingIntent;
import 安卓.content.Context;
import 安卓.content.Intent;
import 安卓.net.Uri;
import 安卓.os.Bundle;
import 安卓.view.View;
import 安卓.widget.Button;

import com.prateekgrover.redditline.services.RedditAuthService;

import net.openid.appauth.AuthState;
import net.openid.appauth.AuthorizationException;
import net.openid.appauth.AuthorizationRequest;
import net.openid.appauth.AuthorizationResponse;
import net.openid.appauth.AuthorizationService;
import net.openid.appauth.AuthorizationServiceConfiguration;
import net.openid.appauth.TokenRequest;
import net.openid.appauth.TokenResponse;

import java.util.UUID;

public class MainActivity extends AppCompatActivity {

    private String USED_INTENT = "1";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button loginButton = findViewById(R.id.reddit_login);

        loginButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
//                Intent intent =  new Intent(MainActivity.this, RedditAuthService.class);
//                startService(intent);
                performRedditAuthAction(MainActivity.this, "com.prateekgrover.redditline.HANDLE_AUTHORIZATION_RESPONSE");
            }
        });
    }

    public void performRedditAuthAction(Context context, String actionRedirect) {
        String uuid = UUID.randomUUID().toString();
        AuthorizationServiceConfiguration serviceConfiguration = new AuthorizationServiceConfiguration(
                Uri.parse("https://www.reddit.com/api/v1/authorize") /* auth endpoint */,
                Uri.parse("https://www.reddit.com/api/v1/access_token") /* token endpoint */
        );
        String clientId = "<my client id>";
        Uri redirectUri = Uri.parse("com.prateekgrover.redditline://oauth2callback");
        AuthorizationRequest.Builder builder = new AuthorizationRequest.Builder(
                serviceConfiguration,
                clientId,
                "code",
                redirectUri
        );
        builder.setState(uuid);
        builder.setScopes("identity", "mysubreddits", "read", "save", "submit", "subscribe", "vote");
        AuthorizationRequest request = builder.build();
        AuthorizationService authorizationService = new AuthorizationService(context);

        String action = actionRedirect;
        Intent postAuthorizationIntent = new Intent("com.prateekgrover.redditline.HANDLE_AUTHORIZATION_RESPONSE");
        PendingIntent pendingIntent = PendingIntent.getActivity(this, request.hashCode(), postAuthorizationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        authorizationService.performAuthorizationRequest(request, pendingIntent);
    }

    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        if (intent != null && intent.getAction() != null) {
            String action = intent.getAction();
            switch (action) {
                case "com.prateekgrover.redditline.HANDLE_AUTHORIZATION_RESPONSE":
                    redirectIntent(intent);
                    break;
                default:
            }
        }
    }

    private void redirectIntent(@Nullable Intent intent) {
        if (!intent.hasExtra(USED_INTENT)) {
            handleAuthorizationResponse(intent);
            intent.putExtra(USED_INTENT, true);
        }
    }

    private void handleAuthorizationResponse(Intent intent) {
        AuthorizationResponse response = AuthorizationResponse.fromIntent(intent);
        AuthorizationException error = AuthorizationException.fromIntent(intent);
        final AuthState authState = new AuthState(response, error);

        if (response != null) {
            AuthorizationService service = new AuthorizationService(this);
            service.performTokenRequest(response.createTokenExchangeRequest(), new AuthorizationService.TokenResponseCallback() {
                @Override
                public void onTokenRequestCompleted(@Nullable TokenResponse tokenResponse, @Nullable AuthorizationException exception) {
                    if (exception != null) {
                    } else {
                        if (tokenResponse != null) {
                            authState.update(tokenResponse, exception);
                            System.out.println(tokenResponse.accessToken + " refresh_token " + tokenResponse.refreshToken);
                        }
                    }
                }
            });
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
    }

    @Override
    protected void onStart() {
        super.onStart();
        Intent intent = getIntent();
        if (intent != null && intent.getAction() != null) {
            String action = intent.getAction();
            switch (action) {
                case "com.prateekgrover.redditline.HANDLE_AUTHORIZATION_RESPONSE":
                    redirectIntent(intent);
                    break;
                default:
            }
        }
    }
}

清单文件：

<activity 安卓:name=".MainActivity" >
            <intent-filter>
                <action 安卓:name="安卓.intent.action.MAIN" />
                <category 安卓:name="安卓.intent.category.LAUNCHER" />
            </intent-filter>
            <intent-filter>
                <action 安卓:name="com.prateekgrover.redditline.HANDLE_AUTHORIZATION_RESPONSE"/>
                <category 安卓:name="安卓.intent.category.DEFAULT"/>
            </intent-filter>
        </activity>

图书馆的相关部分-MCOMPLETETINTENT是我发送给图书馆的悬而未决的内容

private void extractState(Bundle state) {
        if (state == null) {
            Logger.warn("No stored state - unable to handle response");
            finish();
            return;
        }

        mAuthIntent = state.getParcelable(KEY_AUTH_INTENT);
        mAuthorizationStarted = state.getBoolean(KEY_AUTHORIZATION_STARTED, false);
        try {
            String authRequestJson = state.getString(KEY_AUTH_REQUEST, null);
            mAuthRequest = authRequestJson != null
                    ? AuthorizationRequest.jsonDeserialize(authRequestJson)
                    : null;
        } catch (JSONException ex) {
            throw new IllegalStateException("Unable to deserialize authorization request", ex);
        }
        mCompleteIntent = state.getParcelable(KEY_COMPLETE_INTENT);
        mCancelIntent = state.getParcelable(KEY_CANCEL_INTENT);
    }

private void handleAuthorizationComplete() {
        Uri responseUri = getIntent().getData();
        Intent responseData = extractResponseData(responseUri);
        if (responseData == null) {
            Logger.error("Failed to extract OAuth2 response from redirect");
            return;
        }
        responseData.setData(responseUri);

        if (mCompleteIntent != null) {
            Logger.debug("Authorization complete - invoking completion intent");
            try {
                mCompleteIntent.send(this, 0, responseData);
            } catch (CanceledException ex) {
                Logger.error("Failed to send completion intent", ex);
            }
        } else {
            setResult(RESULT_OK, responseData);
        }
    }

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使用OpenId AppAuthAndroid库时，具有隐式意图的java PendingEvent返回已取消的异常

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