upload lab04

lab04/AuthCodeApp/.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild

lab04/AuthCodeApp/app/.gitignore

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+/build

lab04/AuthCodeApp/app/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 27
+    defaultConfig {
+        applicationId "spring2go.io.authcodeapp"
+        minSdkVersion 21
+        targetSdkVersion 27
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    packagingOptions {
+        exclude 'META-INF/LICENSE'
+    }
+
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:appcompat-v7:27.1.1'
+    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
+    testImplementation 'junit:junit:4.12'
+    compile 'com.squareup.retrofit2:retrofit:2.3.0'
+    compile 'com.squareup.retrofit2:converter-jackson:2.3.0'
+    compile 'com.squareup.okhttp3:logging-interceptor:3.9.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+}

lab04/AuthCodeApp/app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

lab04/AuthCodeApp/app/src/androidTest/java/spring2go/io/authcodeapp/ExampleInstrumentedTest.java

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+package spring2go.io.authcodeapp;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("spring2go.io.authcodeapp", appContext.getPackageName());
+    }
+}

lab04/AuthCodeApp/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="spring2go.io.authcodeapp">
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".presenter.MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".presenter.AuthorizationCodeActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+                <category android:name="android.intent.category.BROWSABLE"/>
+                <data android:scheme="oauth2"
+                    android:host="userinfo"
+                    android:path="/callback"/>
+            </intent-filter>
+        </activity>
+        <activity android:name=".presenter.UserInfoActivity">
+        </activity>
+    </application>
+
+</manifest>

lab04/AuthCodeApp/app/src/main/java/spring2go/io/authcodeapp/client/ClientAPI.java

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+package spring2go.io.authcodeapp.client;
+
+import spring2go.io.authcodeapp.client.interceptor.OAuth2ClientAuthenticationInterceptor;
+import spring2go.io.authcodeapp.client.oauth2.OAuth2API;
+import spring2go.io.authcodeapp.client.userinfo.UserInfoAPI;
+import spring2go.io.authcodeapp.client.userinfo.UserInfoAPI;
+
+public class ClientAPI {
+    public static final String BASE_URL = "172.30.17.42:8080";
+
+    public static UserInfoAPI userInfo() {
+        RetrofitAPIFactory api = new RetrofitAPIFactory(BASE_URL, null);
+        return api.getRetrofit().create(UserInfoAPI.class);
+    }
+
+    public static OAuth2API oauth2() {
+        RetrofitAPIFactory api = new RetrofitAPIFactory(BASE_URL,
+            new OAuth2ClientAuthenticationInterceptor());
+        return api.getRetrofit().create(OAuth2API.class);
+    }
+
+}

lab04/AuthCodeApp/app/src/main/java/spring2go/io/authcodeapp/client/RetrofitAPIFactory.java

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+package spring2go.io.authcodeapp.client;
+
+import spring2go.io.authcodeapp.client.interceptor.BearerTokenHeaderInterceptor;
+import spring2go.io.authcodeapp.client.interceptor.ErrorInterceptor;
+import spring2go.io.authcodeapp.client.interceptor.OAuth2ClientAuthenticationInterceptor;
+import okhttp3.OkHttpClient;
+import retrofit2.Retrofit;
+import retrofit2.converter.jackson.JacksonConverterFactory;
+
+class RetrofitAPIFactory {
+    private final Retrofit retrofit;
+
+    RetrofitAPIFactory(String baseUrl,
+       OAuth2ClientAuthenticationInterceptor clientAuthentication) {
+        retrofit = new Retrofit.Builder()
+                .baseUrl("http://" + baseUrl)
+                .addConverterFactory(JacksonConverterFactory.create())
+                .client(createClient(clientAuthentication))
+                .build();
+    }
+
+    public Retrofit getRetrofit() { return retrofit; }
+
+    private OkHttpClient createClient(
+        OAuth2ClientAuthenticationInterceptor clientAuthentication) {
+        OkHttpClient.Builder client = new OkHttpClient.Builder();
+        client.addInterceptor(new ErrorInterceptor());
+        client.addInterceptor(new BearerTokenHeaderInterceptor());
+        if (clientAuthentication != null) {
+            client.addInterceptor(clientAuthentication);
+        }
+        return client.build();
+    }
+}

lab04/AuthCodeApp/app/src/main/java/spring2go/io/authcodeapp/client/interceptor/BearerTokenHeaderInterceptor.java

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+package spring2go.io.authcodeapp.client.interceptor;
+
+import java.io.IOException;
+import java.util.List;
+
+import okhttp3.Interceptor;
+import okhttp3.Request;
+import okhttp3.Response;
+
+/**
+ * Interceptor that adds Bearer prefix to an access token
+ */
+public class BearerTokenHeaderInterceptor implements Interceptor {
+    @Override
+    public Response intercept(Chain chain) throws IOException {
+
+        Request request = chain.request();
+
+        List<String> headers = request.headers("Authorization");
+        if (headers.size() > 0) {
+            String accessTokenValue = headers.get(0);
+
+            request = request.newBuilder()
+                .removeHeader("Authorization")
+                .addHeader("Authorization", "Bearer " + accessTokenValue)
+                .build();
+
+        }
+
+        return chain.proceed(request);
+
+    }
+}

lab04/AuthCodeApp/app/src/main/java/spring2go/io/authcodeapp/client/interceptor/ErrorInterceptor.java

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+package spring2go.io.authcodeapp.client.interceptor;
+
+import java.io.IOException;
+
+import okhttp3.Interceptor;
+import okhttp3.Request;
+import okhttp3.Response;
+
+public class ErrorInterceptor implements Interceptor {
+    @Override
+    public Response intercept(Chain chain) throws IOException {
+        Request request = chain.request();
+        Response response = chain.proceed(request);
+
+        boolean httpError = (response.code() >= 400);
+        if (httpError) {
+            throw new HttpException(response.code() + ":" + response.message());
+        }
+
+        return response;
+    }
+
+    public static class HttpException extends RuntimeException {
+        public HttpException(String message) {
+            super(message);
+        }
+    }
+}

lab04/AuthCodeApp/app/src/main/java/spring2go/io/authcodeapp/client/interceptor/OAuth2ClientAuthenticationInterceptor.java

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+package spring2go.io.authcodeapp.client.interceptor;
+
+import android.util.Base64;
+
+import java.io.IOException;
+
+import okhttp3.Interceptor;
+import okhttp3.Request;
+import okhttp3.Response;
+
+public class OAuth2ClientAuthenticationInterceptor implements Interceptor {
+    @Override
+    public Response intercept(Chain chain) throws IOException {
+        Request request = chain.request();
+
+        Request authenticatedRequest = request.newBuilder()
+            .addHeader("Authorization", getEncodedAuthorization())
+            .addHeader("Content-Type", "application/x-www-form-urlencoded")
+            .method(request.method(), request.body())
+            .build();
+
+        return chain.proceed(authenticatedRequest);
+    }
+
+    private String getEncodedAuthorization() {
+        return "Basic " + Base64.encodeToString(
+            "mobileclient:112233".getBytes(), Base64.NO_WRAP);
+    }
+}