Merge pull request #9 from yvsriram/master, close #1

Add LoginActivity and retrieve AuthCode

.idea/compiler.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <resourceExtensions />
+    <wildcardResourcePatterns>
+      <entry name="!?*.java" />
+      <entry name="!?*.form" />
+      <entry name="!?*.class" />
+      <entry name="!?*.groovy" />
+      <entry name="!?*.scala" />
+      <entry name="!?*.flex" />
+      <entry name="!?*.kt" />
+      <entry name="!?*.clj" />
+      <entry name="!?*.aj" />
+    </wildcardResourcePatterns>
+    <annotationProcessing>
+      <profile default="true" name="Default" enabled="false">
+        <processorPath useClasspath="true" />
+      </profile>
+    </annotationProcessing>
+  </component>
+</project>
\ No newline at end of file

.idea/copyright/profiles_settings.xml

+<component name="CopyrightManager">
+  <settings default="" />
+</component>
\ No newline at end of file

.idea/misc.xml

@@ -24,7 +24,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" project-jdk-name="JDK" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

.idea/modules.xml

@@ -3,6 +3,7 @@
   <component name="ProjectModuleManager">
     <modules>
       <module fileurl="file://$PROJECT_DIR$/IITB-App.iml" filepath="$PROJECT_DIR$/IITB-App.iml" />
+      <module fileurl="file://$PROJECT_DIR$/IITBApp.iml" filepath="$PROJECT_DIR$/IITBApp.iml" />
       <module fileurl="file://D:\IITB-App\IITBApp.iml" filepath="D:\IITB-App\IITBApp.iml" />
       <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
     </modules>

app/build.gradle

@@ -5,6 +5,7 @@ android {
     buildToolsVersion "25.0.3"
     defaultConfig {
         applicationId "in.ac.iitb.gymkhana.iitbapp"
+        manifestPlaceholders 'appAuthRedirectScheme': 'https'
         minSdkVersion 17
         targetSdkVersion 25
         versionCode 1
@@ -25,6 +26,7 @@ dependencies {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
     compile 'com.android.support:appcompat-v7:25.3.1'
+    compile 'net.openid:appauth:0.2.0'
     testCompile 'junit:junit:4.12'
     compile 'com.android.support:design:25.3.1'
     compile 'com.android.support.constraint:constraint-layout:1.0.2'

app/src/main/AndroidManifest.xml

@@ -13,6 +13,31 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".LoginActivity">
+
+            <intent-filter>
+                <action android:name="HANDLE_AUTHORIZATION_RESPONSE"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+
+        </activity>
+        <activity android:name="net.openid.appauth.RedirectUriReceiverActivity">
+            <intent-filter android:autoVerify="true">
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="redirecturi"
+                    android:scheme="https" />
+            </intent-filter>
+        </activity>
     </application>
 
 </manifest>
\ No newline at end of file

app/src/main/java/in/ac/iitb/gymkhana/iitbapp/LoginActivity.java

+package in.ac.iitb.gymkhana.iitbapp;
+
+
+import android.annotation.TargetApi;
+import android.app.PendingIntent;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Build;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.Toast;
+
+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.TokenResponse;
+
+import static android.R.attr.action;
+
+    public class LoginActivity extends AppCompatActivity {
+        private static final String TAG = "LoginActivity";
+        private final String clientId = "pFcDDWtUUfzlAX2ibriV25lm1J2m92O5ynfT4SYk";
+        private final String clientSecret = "k56GXiN1qB4Dt7CnTVWjuwLJyWntNulitWOkL7Wddr6JHPiHqIZgSfgUplO6neTqumVr32zA14XgQmkuoC8y6y9jnaQT9tKDsq4jQklRb8MQNQglQ1H4YrmqOwPfaNyO";
+        private final Uri redirectUri = Uri.parse("https://redirecturi");
+        private final Uri mAuthEndpoint = Uri.parse("http://gymkhana.iitb.ac.in/sso/oauth/authorize/");
+        private final Uri mTokenEndpoint = Uri.parse("http://gymkhana.iitb.ac.in/sso/oauth/token/");
+        private AuthorizationService mAuthService;
+
+        @Override
+        protected void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            setContentView(R.layout.activity_login);
+            mAuthService = new AuthorizationService(this);
+
+            Button ldapLogin = (Button) findViewById(R.id.ldap_login);
+            ldapLogin.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View view) {
+                    Log.d(TAG, "Initiating auth");
+
+                    AuthorizationServiceConfiguration config =
+                            new AuthorizationServiceConfiguration(mAuthEndpoint, mTokenEndpoint);
+
+                    makeAuthRequest(config);
+                }
+            });
+            Button guestLogin = (Button) findViewById(R.id.guest_login);
+            guestLogin.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View view) {
+
+
+                }
+            });
+
+        }
+        @Override
+        protected void onNewIntent(Intent intent) {
+
+            checkIntent(intent);
+        }
+
+        private void checkIntent(@Nullable Intent intent) {
+            if (intent != null) {
+                Log.d(TAG,"Intent Received");
+                String action = intent.getAction();
+                switch (action) {
+                    case "HANDLE_AUTHORIZATION_RESPONSE":
+                    {
+                        handleAuthorizationResponse(intent);
+
+                    }
+                    break;
+                    default:Log.d(TAG,intent.getAction());
+
+                }
+            }
+        }
+
+        @Override
+        protected void onStart() {
+            super.onStart();
+            checkIntent(getIntent());
+        }
+
+        @Override
+        protected void onResume() {
+            super.onResume();
+            Log.d(TAG,"In Resume");
+        }
+
+        @Override
+        protected void onDestroy() {
+            super.onDestroy();
+            mAuthService.dispose();
+        }
+        private void handleAuthorizationResponse(@NonNull Intent intent) {
+            AuthorizationResponse response = AuthorizationResponse.fromIntent(intent);
+            AuthorizationException error = AuthorizationException.fromIntent(intent);
+
+            if (response != null) {
+                Log.d(TAG, "Received AuthorizationResponse: "+ "AuthCode: "+response.authorizationCode);
+                Toast.makeText(this,
+                        "AuthCode: "+response.authorizationCode, Toast.LENGTH_SHORT)
+                        .show();
+            } else {
+                Log.i(TAG, "Authorization failed: " + error.getMessage());
+                Toast.makeText(this,
+                        "Authorization failed", Toast.LENGTH_LONG)
+                        .show();
+            }
+        }
+
+        private void makeAuthRequest(
+                @NonNull AuthorizationServiceConfiguration serviceConfig) {
+
+            AuthorizationRequest authRequest = new AuthorizationRequest.Builder(
+                    serviceConfig,
+                    clientId,
+                    "code",
+                    redirectUri)
+                    .setScope("profile")
+                    .build();
+
+            Log.d(TAG, "Making auth request");
+            String action = "HANDLE_AUTHORIZATION_RESPONSE";
+            Intent postAuthorizationIntent = new Intent(action);
+
+            PendingIntent pendingIntent = PendingIntent.getActivity(this, authRequest.hashCode(), postAuthorizationIntent, 0);
+
+            mAuthService.performAuthorizationRequest(
+                    authRequest,
+                    pendingIntent,
+                    mAuthService.createCustomTabsIntentBuilder()
+                            .setToolbarColor(getCustomTabColor())
+                            .build());
+        }
+        //Todo: Change the color of Chrome custom tabs based on app theme color
+        @TargetApi(Build.VERSION_CODES.M)
+        @SuppressWarnings("deprecation")
+        private int getCustomTabColor() {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                return getColor(R.color.colorPrimaryDark);
+            } else {
+                return getResources().getColor(R.color.colorPrimaryDark);
+            }
+        }
+
+
+    }
+

app/src/main/res/layout/activity_login.xml

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+
+
+
+        <Button
+            android:id="@+id/guest_login"
+            android:layout_width="wrap_content"
+            android:layout_height="48dp"
+            android:layout_gravity="center"
+            android:text="Guest Login"
+            />
+
+        <Button
+            android:id="@+id/ldap_login"
+            android:layout_width="wrap_content"
+            android:layout_height="48dp"
+            android:layout_gravity="center"
+            android:text="LDAP login"
+            />
+
+
+
+</LinearLayout>
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