Servlet returns login status

portfolio/pom.xml

@@ -7,7 +7,7 @@
   <artifactId>portfolio</artifactId>
   <version>1</version>
   <packaging>war</packaging>
-
+ 
   <properties>
     <!-- This project uses Java 8 -->
     <maven.compiler.source>1.8</maven.compiler.source>
@@ -23,8 +23,25 @@
       <version>4.0.1</version>
       <scope>provided</scope>
     </dependency>
-  </dependencies>
 
+    <dependency>
+        <groupId>com.google.appengine</groupId>
+        <artifactId>appengine-api-1.0-sdk</artifactId>
+        <version>1.9.59</version>
+    </dependency>
+
+     <dependency>
+      <groupId>com.google.code.gson</groupId>
+      <artifactId>gson</artifactId>
+      <version>2.8.6</version>
+    </dependency>
+
+    <dependency>
+        <groupId>com.google.appengine</groupId>
+        <artifactId>appengine-api-1.0-sdk</artifactId>
+        <version>1.9.59</version>
+    </dependency>
+  </dependencies>
   <build>
     <plugins>
       <!-- Provides `mvn package appengine:run` for local testing

portfolio/src/main/java/com/google/sps/servlets/DataServlet.java

@@ -14,19 +14,74 @@
 
 package com.google.sps.servlets;
 
+import com.google.gson.Gson;
 import java.io.IOException;
 import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import java.util.Arrays;
+import java.util.ArrayList;
+import java.util.List;
+import com.google.appengine.api.datastore.DatastoreService;
+import com.google.appengine.api.datastore.DatastoreServiceFactory;
+import com.google.appengine.api.datastore.Entity;
+import com.google.appengine.api.datastore.PreparedQuery;
+import com.google.appengine.api.datastore.Query;
+import com.google.appengine.api.datastore.Query.SortDirection;
 
 /** Servlet that returns some example content. TODO: modify this file to handle comments data */
 @WebServlet("/data")
 public class DataServlet extends HttpServlet {
 
-  @Override
-  public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
-    response.setContentType("text/html;");
-    response.getWriter().println("<h1>Hello Noelle!</h1>");
+        private final List<String> commStream = new ArrayList<>();
+
+		@Override
+		public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+			Query query = new Query("comment").addSort("timestamp", SortDirection.DESCENDING);
+
+            DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
+            PreparedQuery results = datastore.prepare(query);
+
+            List<String> tasks = new ArrayList<>();
+            for (Entity entity : results.asIterable()) {
+             long id = entity.getKey().getId();
+                String comm = (String) entity.getProperty("content");
+
+                tasks.add(comm);
+
+
+            }
+
+			response.setContentType("application/json;");
+			String json = new Gson().toJson(tasks);
+			System.out.println("get: " + tasks);
+			response.getWriter().println(json);
+		}
+
+        @Override
+		public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
+			String text =  getParameter(request, "textarea_field", "");//returns what is in text firld
+
+            commStream.add(text);
+			System.out.println("post: " + commStream);
+            long timestamp = System.currentTimeMillis();
+
+            DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
+            Entity taskEntity = new Entity("comment");
+            taskEntity.setProperty("content", text);
+            taskEntity.setProperty("timestamp", timestamp); //adds a timestamp to the comment
+
+            datastore.put(taskEntity);
+
+			response.sendRedirect("/index.html");
+		}
+
+        private String getParameter(HttpServletRequest request, String name, String defaultValue) {
+        String value = request.getParameter(name);
+        if (value == null) {
+        return defaultValue;
+        }
+        return value;
   }
-}
+}

portfolio/src/main/java/com/google/sps/servlets/HomeServlet.java

@@ -0,0 +1,73 @@
+// Copyright 2019 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.sps.servlets;
+
+import com.google.appengine.api.datastore.*;
+import com.google.appengine.api.users.UserService;
+import com.google.appengine.api.users.UserServiceFactory;
+import java.io.IOException;
+import java.io.PrintWriter;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/home")
+public class HomeServlet extends HttpServlet {
+
+  @Override
+  public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+    response.setContentType("text/html");
+    PrintWriter out = response.getWriter();
+    UserService userService = UserServiceFactory.getUserService();
+
+    // If user is not logged in, show a login form (could also redirect to a login page)
+    if (!userService.isUserLoggedIn()) {
+      String loginUrl = userService.createLoginURL("/home");
+      out.println("<p>Login <a href=\"" + loginUrl + "\">here</a>.</p>");
+      return;
+    }
+
+    // If user has not set a nickname, redirect to nickname page
+    String nickname = getUserNickname(userService.getCurrentUser().getUserId());
+    if (nickname == null) {
+      response.sendRedirect("/nickname"); 
+      //in implementation, redirect to index
+      return;
+    }
+
+    // User is logged in and has a nickname, so the request can proceed
+    String logoutUrl = userService.createLogoutURL("/home");
+    out.println("<h1>Home</h1>");
+    out.println("<p>Hello " + nickname + "!</p>");
+    out.println("<p>Logout <a href=\"" + logoutUrl + "\">here</a>.</p>");
+    out.println("<p>Change your nickname <a href=\"/nickname\">here</a>.</p>");
+  }
+
+  /** Returns the nickname of the user with id, or null if the user has not set a nickname. */
+  private String getUserNickname(String id) {
+    DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
+    Query query =
+        new Query("UserInfo")
+            .setFilter(new Query.FilterPredicate("id", Query.FilterOperator.EQUAL, id));
+    PreparedQuery results = datastore.prepare(query);
+    Entity entity = results.asSingleEntity();
+    if (entity == null) {
+      return null;
+    }
+    String nickname = (String) entity.getProperty("nickname");
+    return nickname;
+  }
+}

portfolio/src/main/java/com/google/sps/servlets/NicknameServlet.java

@@ -0,0 +1,92 @@
+// Copyright 2019 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.sps.servlets;
+
+import com.google.appengine.api.datastore.DatastoreService;
+import com.google.appengine.api.datastore.DatastoreServiceFactory;
+import com.google.appengine.api.datastore.Entity;
+import com.google.appengine.api.datastore.PreparedQuery;
+import com.google.appengine.api.datastore.Query;
+import com.google.appengine.api.users.UserService;
+import com.google.appengine.api.users.UserServiceFactory;
+import java.io.IOException;
+import java.io.PrintWriter;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet("/nickname")
+public class NicknameServlet extends HttpServlet {
+
+  @Override
+  public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
+    response.setContentType("text/html");
+    PrintWriter out = response.getWriter();
+    out.println("<h1>Set Nickname</h1>");
+
+    UserService userService = UserServiceFactory.getUserService();
+    if (userService.isUserLoggedIn()) {
+      String nickname = getUserNickname(userService.getCurrentUser().getUserId());
+      out.println("<p>Set your nickname here:</p>");
+      out.println("<form method=\"POST\" action=\"/nickname\">");
+      out.println("<input name=\"nickname\" value=\"" + nickname + "\" />");
+      out.println("<br/>");
+      out.println("<button>Submit</button>");
+      out.println("</form>");
+    } else {
+      String loginUrl = userService.createLoginURL("/nickname");
+      out.println("<p>Login <a href=\"" + loginUrl + "\">here</a>.</p>");
+    }
+  }
+
+  @Override
+  public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
+    UserService userService = UserServiceFactory.getUserService();
+    if (!userService.isUserLoggedIn()) {
+      response.sendRedirect("/nickname");
+      return;
+    }
+
+    String nickname = request.getParameter("nickname");
+    String id = userService.getCurrentUser().getUserId();
+
+    DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
+    Entity entity = new Entity("UserInfo", id);
+    entity.setProperty("id", id);
+    entity.setProperty("nickname", nickname);
+    // The put() function automatically inserts new data or updates existing data based on ID
+    datastore.put(entity);
+
+    response.sendRedirect("/home");
+  }
+
+  /**
+   * Returns the nickname of the user with id, or empty String if the user has not set a nickname.
+   */
+  private String getUserNickname(String id) {
+    DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
+    Query query =
+        new Query("UserInfo")
+            .setFilter(new Query.FilterPredicate("id", Query.FilterOperator.EQUAL, id));
+    PreparedQuery results = datastore.prepare(query);
+    Entity entity = results.asSingleEntity();
+    if (entity == null) {
+      return "";
+    }
+    String nickname = (String) entity.getProperty("nickname");
+    return nickname;
+  }
+}

portfolio/src/main/webapp/index.html

@@ -29,46 +29,42 @@
 	<script src="script.js"></script>
 </head>
 
-<body>
+<body onload="servlet()">
 	<div id="content">
 
-		<h1 style="text-align:center;">Noelle's Portfolio</h1>
-		<p style="text-align:center;"> Hi! I'm Noelle and this is my portfolio!</p>
+		<h1>Noelle's Portfolio</h1>
+		<p> Hi! I'm Noelle and this is my portfolio!</p>
 		<img src="images/f94.gif" id="cenImage">
-		<p style="text-align:center;"> (a real picture of me)</p>
-		<p style="text-align:center;">Click here to get a random D&D quote:</p>
+		<p> (a real picture of me)</p>
+		<p>Click here to get a random D&D quote:</p>
 		<div id="wrapper">
 			<button onclick="randMessage()" type="button" class="nes-btn is-primary" > *roll dice*</button>
 		</div>
 		<!--
-            ideally, i'd like to move this script section, but the index can't find the script file if i don't keep it here.
-            a problem for future noelle!
-            -->
-		<script>
-			function randMessage() {
-    const msgList =
-        ['“With a successful attack roll, the wizard maintains the thief in surfboard position.”',
-         'DM: So, what are your character’s flaws? Player: Acid reflux.',
-          'That’s too indiscriminate.  We should go with the rampaging bear.',
-          'We’ve managed to teach the robot about the most important human emotion: Humiliation.',
-          '“Do you have a permit for that facial hair?”',
-          'Cleric: “Everybody chill, it’s totes God’s will.”',
-          'Did asterisks exist in 2006?'];
-    const msg = msgList[Math.floor(Math.random() * msgList.length)];
-    const msgContainer = document.getElementById('message-container');
-    msgContainer.innerText = msg;
-}
-		</script>
-		<!--
             <button  type="button" class="nes-btn is-primary" onclick="randMessage()">*roll ldice*</button>
             -->
 		<div class="nes-container is-rounded" id="message-container" style=" margin-top: 15px; margin-bottom: 15px; ">
 			<p></p>
 		</div>
-		<p style="text-align:center;">Click <a href="/data">here</a> to view content generated by a servlet.</p>
-		<p style="text-align:center;"><a href=" resume.html">Wanna see my resume? </a></p>
-		<p style="text-align:center;"><a href="cosplay.html">Here's some cosply stuff </a></p>
 
+		<!-- <p>Click below to see content generated from a servlet!</p>
+		<div id="wrapper">
+			<button onclick="servlet()" type="button"  class="nes-btn is-success">Fetch a quote!</button>
+		</div> -->
+		<div class="nes-container with-title is-centered" style=" margin-top: 15px; margin-bottom: 15px; ">
+			<p class="title">comments</p>
+			<!-- comment stream -->
+			<p name="quote-container" id="quote-container"></p>
+
+			<form action="/data" method="POST">
+				<!-- here you can post a comment -->
+				<label for="textarea_field">post your comment:</label>
+				<textarea name="textarea_field" class="nes-textarea"></textarea>
+				<input type="submit" />
+            </form>
+		</div>
+		<p><a href=" resume.html">Wanna see my resume? </a></p>
+		<p><a href="cosplay.html">Here's some cosply stuff </a></p>
 
 	</div>
 </body>