From fe846fb81f8f2ba875180bb08d35c5a60b229e0f Mon Sep 17 00:00:00 2001
From: NMerz <nmerz@icloud.com>
Date: Mon, 5 Oct 2020 12:29:28 -0400
Subject: [PATCH] Delete Lambda prototype

Prototype the User DELETE lambda. Amplify does not include this functionality, so putting it in a Lambda with the fine-grained API. This currently does not invalidate outstanding tokens nor does it clean up the database.
@claytonwwilson You will want to add the clean up code instead of the deleted stuff in UserDeleter
---
 .../User/resources/cognitoProperties.json     |   3 +
 Lambdas/Lists/User/src/UserDELETE.java        |  11 ++++
 Lambdas/Lists/User/src/UserDeleter.java       |  59 ++++++++++++++++++
 Lambdas/Lists/pom.xml                         |  42 ++++++++++++-
 Lambdas/Lists/target/Lists-1.0-SNAPSHOT.jar   | Bin 0 -> 6620 bytes
 .../target/maven-archiver/pom.properties      |   5 ++
 .../compile/default-compile/inputFiles.lst    |   4 ++
 .../java/com/example/listify/AuthManager.java |  10 +++
 .../com/example/listify/MainActivity.java     |   7 ++-
 .../java/com/example/listify/Requestor.java   |  22 +++++--
 .../java/com/example/listify/data/User.java   |   4 ++
 11 files changed, 158 insertions(+), 9 deletions(-)
 create mode 100644 Lambdas/Lists/User/resources/cognitoProperties.json
 create mode 100644 Lambdas/Lists/User/src/UserDELETE.java
 create mode 100644 Lambdas/Lists/User/src/UserDeleter.java
 create mode 100644 Lambdas/Lists/target/Lists-1.0-SNAPSHOT.jar
 create mode 100644 Lambdas/Lists/target/maven-archiver/pom.properties
 create mode 100644 Lambdas/Lists/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
 create mode 100644 Listify/app/src/main/java/com/example/listify/data/User.java

diff --git a/Lambdas/Lists/User/resources/cognitoProperties.json b/Lambdas/Lists/User/resources/cognitoProperties.json
new file mode 100644
index 0000000..a01aefd
--- /dev/null
+++ b/Lambdas/Lists/User/resources/cognitoProperties.json
@@ -0,0 +1,3 @@
+{
+  "userPoolId": "us-east-2_MFgSVKQMd",
+}
\ No newline at end of file
diff --git a/Lambdas/Lists/User/src/UserDELETE.java b/Lambdas/Lists/User/src/UserDELETE.java
new file mode 100644
index 0000000..b1a7076
--- /dev/null
+++ b/Lambdas/Lists/User/src/UserDELETE.java
@@ -0,0 +1,11 @@
+import com.amazonaws.services.lambda.runtime.Context;
+import com.amazonaws.services.lambda.runtime.RequestHandler;
+
+import java.util.Map;
+
+public class UserDELETE implements RequestHandler<Map<String,Object>, Object> {
+
+    public Object handleRequest(Map<String, Object> inputMap, Context unfilled) {
+        return BasicHandler.handleRequest(inputMap, unfilled, UserDeleter.class);
+    }
+}
\ No newline at end of file
diff --git a/Lambdas/Lists/User/src/UserDeleter.java b/Lambdas/Lists/User/src/UserDeleter.java
new file mode 100644
index 0000000..bd04d9b
--- /dev/null
+++ b/Lambdas/Lists/User/src/UserDeleter.java
@@ -0,0 +1,59 @@
+import com.amazonaws.services.cognitoidp.AWSCognitoIdentityProvider;
+import com.amazonaws.services.cognitoidp.AWSCognitoIdentityProviderClientBuilder;
+import com.amazonaws.services.cognitoidp.model.AdminDeleteUserRequest;
+import com.amazonaws.services.cognitoidp.model.AdminUserGlobalSignOutRequest;
+
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Properties;
+
+public class UserDeleter implements CallHandler {
+
+    private DBConnector connector;
+    private String cognitoID;
+
+    //private final String REMOVE_FROM_LIST = "DELETE FROM ListProduct WHERE (ProductID = ? AND ListID = ?);";
+
+    public UserDeleter(DBConnector connector, String cognitoID) {
+        this.connector = connector;
+        this.cognitoID = cognitoID;
+    }
+
+    public Object conductAction(Map<String, Object> bodyMap, HashMap<String, String> queryString, String cognitoID) throws SQLException {
+        AWSCognitoIdentityProvider awsCognitoIdentityProvider = AWSCognitoIdentityProviderClientBuilder.defaultClient();
+        Properties cognitoProperties;
+        try {
+            cognitoProperties = DBConnector.loadProperties("cognitoProperties.json");
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        }
+        String userPoolId = cognitoProperties.get("userPoolId").toString();
+        System.out.println(userPoolId);
+        AdminDeleteUserRequest adminDeleteUserRequest = new AdminDeleteUserRequest().withUserPoolId(userPoolId);
+        adminDeleteUserRequest.setUsername(cognitoID);
+        System.out.println(adminDeleteUserRequest);
+        awsCognitoIdentityProvider.adminDeleteUser(adminDeleteUserRequest);
+        AdminUserGlobalSignOutRequest adminUserGlobalSignOutRequest = new AdminUserGlobalSignOutRequest().withUserPoolId(userPoolId);
+        adminUserGlobalSignOutRequest.setUsername(cognitoID);
+        System.out.println(adminUserGlobalSignOutRequest);
+        awsCognitoIdentityProvider.adminUserGlobalSignOut(adminUserGlobalSignOutRequest);
+
+        return null;
+
+        //        Connection connection = connector.getConnection();
+//        try {
+//            PreparedStatement statement = connection.prepareStatement(REMOVE_FROM_LIST);
+//            statement.setInt(1, (Integer) bodyMap.get("ProductID"));
+//            statement.setInt(2, (Integer) bodyMap.get("ListID"));
+//            System.out.println(statement);
+//            statement.executeUpdate();
+//            connection.commit();
+//        } finally {
+//            connection.close();
+//        }
+//        return null;
+    }
+}
diff --git a/Lambdas/Lists/pom.xml b/Lambdas/Lists/pom.xml
index 1984615..9fb5565 100644
--- a/Lambdas/Lists/pom.xml
+++ b/Lambdas/Lists/pom.xml
@@ -42,13 +42,53 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.5</version>
+            <version>4.5.12</version>
         </dependency>
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
             <version>2.8.6</version>
         </dependency>
+        <dependency>
+            <groupId>com.amazonaws</groupId>
+            <artifactId>aws-java-sdk-cognitoidentity</artifactId>
+            <version>1.11.875</version>
+        </dependency>
+        <dependency>
+            <groupId>com.amazonaws</groupId>
+            <artifactId>aws-java-sdk-cognitoidp</artifactId>
+            <version>1.11.875</version>
+        </dependency>
+        <dependency>
+            <groupId>software.amazon.ion</groupId>
+            <artifactId>ion-java</artifactId>
+            <version>1.5.1</version>
+        </dependency>
+        <dependency>
+            <groupId>joda-time</groupId>
+            <artifactId>joda-time</artifactId>
+            <version>2.10.6</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-logging</groupId>
+            <artifactId>commons-logging</artifactId>
+            <version>1.2</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.dataformat</groupId>
+            <artifactId>jackson-dataformat-cbor</artifactId>
+            <version>2.11.3</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.dataformat</groupId>
+            <artifactId>jackson-dataformat-xml</artifactId>
+            <version>2.8.5</version>
+        </dependency>
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>2.11.3</version>
+        </dependency>
     </dependencies>
     <properties>
         <maven.compiler.source>1.11</maven.compiler.source>
diff --git a/Lambdas/Lists/target/Lists-1.0-SNAPSHOT.jar b/Lambdas/Lists/target/Lists-1.0-SNAPSHOT.jar
new file mode 100644
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diff --git a/Lambdas/Lists/target/maven-archiver/pom.properties b/Lambdas/Lists/target/maven-archiver/pom.properties
new file mode 100644
index 0000000..68bd418
--- /dev/null
+++ b/Lambdas/Lists/target/maven-archiver/pom.properties
@@ -0,0 +1,5 @@
+#Generated by Maven
+#Mon Oct 05 10:19:24 EDT 2020
+groupId=groupId
+artifactId=Lists
+version=1.0-SNAPSHOT
diff --git a/Lambdas/Lists/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst b/Lambdas/Lists/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
new file mode 100644
index 0000000..db1626f
--- /dev/null
+++ b/Lambdas/Lists/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst
@@ -0,0 +1,4 @@
+/Users/MNM/Documents/GitHub/Listify/Lambdas/Lists/src/main/java/CallHandler.java
+/Users/MNM/Documents/GitHub/Listify/Lambdas/Lists/src/main/java/DBConnector.java
+/Users/MNM/Documents/GitHub/Listify/Lambdas/Lists/src/main/java/BasicHandler.java
+/Users/MNM/Documents/GitHub/Listify/Lambdas/Lists/src/main/java/InputUtils.java
diff --git a/Listify/app/src/main/java/com/example/listify/AuthManager.java b/Listify/app/src/main/java/com/example/listify/AuthManager.java
index 030fb88..6f87694 100644
--- a/Listify/app/src/main/java/com/example/listify/AuthManager.java
+++ b/Listify/app/src/main/java/com/example/listify/AuthManager.java
@@ -8,6 +8,7 @@ import com.amplifyframework.auth.options.AuthSignUpOptions;
 import com.amplifyframework.auth.result.AuthSignInResult;
 import com.amplifyframework.auth.result.AuthSignUpResult;
 import com.amplifyframework.core.Amplify;
+import com.example.listify.data.User;
 import org.json.JSONException;
 import org.json.JSONObject;
 
@@ -85,6 +86,10 @@ public class AuthManager {
         waiting = false;
     }
 
+    public void signOutSuccess() {
+        waiting = false;
+    }
+
     public void startSignUp(String email, String password) throws AuthException {
         this.email = email;
         this.password = password;
@@ -124,6 +129,11 @@ public class AuthManager {
         throwIfAuthError();
     }
 
+    public void deleteUser(Requestor requestor) {
+        requestor.deleteObject("N/A", User.class);
+        Amplify.Auth.signOut(this::signOutSuccess, error -> setAuthError(error));
+    }
+
 
 
     public static Properties loadProperties(Context context, String path) throws IOException, JSONException {
diff --git a/Listify/app/src/main/java/com/example/listify/MainActivity.java b/Listify/app/src/main/java/com/example/listify/MainActivity.java
index 0e8061b..0e84fdb 100644
--- a/Listify/app/src/main/java/com/example/listify/MainActivity.java
+++ b/Listify/app/src/main/java/com/example/listify/MainActivity.java
@@ -14,8 +14,8 @@ import androidx.navigation.ui.AppBarConfiguration;
 import androidx.navigation.ui.NavigationUI;
 import com.amplifyframework.auth.AuthException;
 import com.example.listify.data.Item;
-import com.example.listify.data.ListEntry;
 import com.example.listify.data.List;
+import com.example.listify.data.ListEntry;
 import com.google.android.material.navigation.NavigationView;
 import org.json.JSONException;
 
@@ -60,7 +60,7 @@ public class MainActivity extends AppCompatActivity {
         //------------------------------------------------------------------------------------------//
 
 
-        boolean testAPI = false;
+        boolean testAPI = true;
         //----------------------------------API Testing---------------------------------------------//
 
         if (testAPI) {
@@ -78,6 +78,9 @@ public class MainActivity extends AppCompatActivity {
             }
 
             Requestor requestor = new Requestor(authManager, configs.getProperty("apiKey"));
+
+            authManager.deleteUser(requestor);
+
             //The name is the only part of this that is used, the rest is generated by the Lambda.
             List testList = new List(-1, "New List", "user filled by lambda", Instant.now().toEpochMilli());
             //Everything except addedDate is used for ItemEntry
diff --git a/Listify/app/src/main/java/com/example/listify/Requestor.java b/Listify/app/src/main/java/com/example/listify/Requestor.java
index 5f34f98..4d0c6d1 100644
--- a/Listify/app/src/main/java/com/example/listify/Requestor.java
+++ b/Listify/app/src/main/java/com/example/listify/Requestor.java
@@ -24,20 +24,30 @@ public class Requestor {
         client = new OkHttpClient();
     }
 
-    public <T> void getObject(String id, Class<T> classType, Receiver<T> receiver) {
-        getObject(id, classType, receiver, null);
-    }
-
     public <T> void getListOfIds(Class<T> ofType, Receiver<Integer[]> successHandler, RequestErrorHandler failureHandler) {
         String getURL = DEV_BASEURL + "/" + ofType.getSimpleName() + "?id=-1";
         Request postRequest = buildBaseRequest(getURL, "GET", null);
         launchCall(postRequest, successHandler, Integer[].class, failureHandler);
     }
 
+    public <T> void getObject(String id, Class<T> classType, Receiver<T> receiver) {
+        getObject(id, classType, receiver, null);
+    }
+
     public <T> void getObject(String id, Class<T> classType, Receiver<T> successHandler, RequestErrorHandler failureHandler) {
         String getURL = DEV_BASEURL + "/" + classType.getSimpleName() + "?id=" + id;
-        Request postRequest = buildBaseRequest(getURL, "GET", null);
-        launchCall(postRequest, successHandler, classType, failureHandler);
+        Request getRequest = buildBaseRequest(getURL, "GET", null);
+        launchCall(getRequest, successHandler, classType, failureHandler);
+    }
+
+    public void deleteObject(String id, Class classType) {
+        deleteObject(id, classType, null);
+    }
+
+    public void deleteObject(String id, Class classType, RequestErrorHandler failureHandler) {
+        String deleteURL = DEV_BASEURL + "/" + classType.getSimpleName() + "?id=" + id;
+        Request deleteRequest = buildBaseRequest(deleteURL, "DELETE", "{}");
+        launchCall(deleteRequest, null, classType, failureHandler);
     }
 
     public void postObject(Object toPost) throws JSONException {
diff --git a/Listify/app/src/main/java/com/example/listify/data/User.java b/Listify/app/src/main/java/com/example/listify/data/User.java
new file mode 100644
index 0000000..65ba3e6
--- /dev/null
+++ b/Listify/app/src/main/java/com/example/listify/data/User.java
@@ -0,0 +1,4 @@
+package com.example.listify.data;
+
+public class User {
+}