From 78b833a02b92748fbec45a40d08411e59da99e82 Mon Sep 17 00:00:00 2001
From: seungwoo1209 <2002msw@naver.com>
Date: Tue, 1 Oct 2024 18:45:19 +0900
Subject: [PATCH 1/7] requirements 1-4

---
 .idea/.name                                 |   1 +
 .idea/gradle.xml                            |   2 +-
 .idea/misc.xml                              |   2 +-
 src/main/java/webserver/RequestHandler.java | 148 +++++++++++++++++++-
 src/main/java/webserver/WebServer.java      |   3 +
 5 files changed, 151 insertions(+), 5 deletions(-)
 create mode 100644 .idea/.name

diff --git a/.idea/.name b/.idea/.name
new file mode 100644
index 0000000..d53760f
--- /dev/null
+++ b/.idea/.name
@@ -0,0 +1 @@
+custom-tomcat
\ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 2a65317..a747e8e 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -5,7 +5,7 @@
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleHome" value="" />
+        <option name="gradleJvm" value="openjdk-22" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 8f86b33..700c638 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -4,7 +4,7 @@
   <component name="FrameworkDetectionExcludesConfiguration">
     <file type="web" url="file://$PROJECT_DIR$" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="homebrew-17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_22" project-jdk-name="openjdk-22" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/src/main/java/webserver/RequestHandler.java b/src/main/java/webserver/RequestHandler.java
index f87ac24..8f99ff8 100644
--- a/src/main/java/webserver/RequestHandler.java
+++ b/src/main/java/webserver/RequestHandler.java
@@ -1,7 +1,16 @@
 package webserver;
 
+import db.MemoryUserRepository;
+import http.util.HttpRequestUtils;
+import http.util.IOUtils;
+import model.User;
+
 import java.io.*;
 import java.net.Socket;
+import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.util.Map;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
@@ -15,20 +24,153 @@ public RequestHandler(Socket connection) {
 
     @Override
     public void run() {
+
         log.log(Level.INFO, "New Client Connect! Connected IP : " + connection.getInetAddress() + ", Port : " + connection.getPort());
         try (InputStream in = connection.getInputStream(); OutputStream out = connection.getOutputStream()){
             BufferedReader br = new BufferedReader(new InputStreamReader(in));
             DataOutputStream dos = new DataOutputStream(out);
 
-            byte[] body = "Hello World".getBytes();
-            response200Header(dos, body.length);
-            responseBody(dos, body);
+
+            String requestLine = br.readLine();
+
+
+//            String decodedLine = URLDecoder.decode(requestLine, StandardCharsets.UTF_8.name());
+//            System.out.println(decodedLine);
+//            Map<String,String> queryMap= HttpRequestUtils.parseQueryParameter(decodedLine);
+
+//            StringBuilder requestBody = new StringBuilder();
+//            String line;
+//            while ((line = br.readLine()) != null) {
+//                requestBody.append(line);
+//                requestBody.append("\n");
+//            }
+//            System.out.println("Request Body: " + requestBody.toString());
+
+//            String[] tokens = requestLine.split(" ");
+//            String method = tokens[0];  // HTTP 메서드 (GET 등)
+//            String resource = tokens[1];  // 요청된 리소스 (예: /, /index.html)
+//
+//            String pageName = resource.split("\\?")[0];
+//            String queryString = resource.split("\\?")[1];
+//
+//            resource = URLDecoder.decode(queryString, StandardCharsets.UTF_8.name());
+//            System.out.println(queryString);
+//            Map<String,String> queryMap = HttpRequestUtils.parseQueryParameter(queryString);
+//
+//            // 기본 리소스 경로 설정
+//            if (pageName.equals("/")) {
+//                pageName = "/index.html";
+//            }
+//
+            System.out.println("Request Line: " + requestLine);
+
+            if (requestLine == null || requestLine.isEmpty()) {
+                return;
+            }
+
+            String[] tokens = requestLine.split(" ");
+            String method = tokens[0];  // HTTP 메서드 (GET 등)
+            String resource = tokens[1];  // 요청된 리소스 (예: /, /index.html)
+
+            switch (method) {
+                case "GET":
+                    if(isSignup(resource)){
+                        addUserInRepository(resource, method);
+                        redirectUser(dos);
+                    } else {
+                        // 기본 리소스 경로 설정
+                        byte[] welcomePage = getWelcomePage(resource);
+                        response200Header(dos, welcomePage.length);
+                        responseBody(dos, welcomePage);
+                    }
+                    break;
+
+                case "POST":
+                    if(isSignup(resource)){
+                        // 헤더 읽기
+                        int contentLength = 0;
+                        String line;
+                        System.out.println("Header: " );
+                        while (!(line = br.readLine()).isEmpty()) {
+                            System.out.println("\t" + line);
+                            if (line.startsWith("Content-Length")) {
+                                contentLength = Integer.parseInt(line.split(":")[1].trim());
+                            }
+                        }
+
+                        // POST 요청의 경우, IOUtils를 사용해 바디 읽기
+                        if (contentLength > 0) {
+                            String body = IOUtils.readData(br, contentLength);  // IOUtils 활용
+                            System.out.println("Body: " + body);
+                            addUserInRepository(body, method);
+                        }
+
+                        redirectUser(dos);
+                    }
+                    break;
+
+                default:
+                    break;
+            }
+
+
+
 
         } catch (IOException e) {
             log.log(Level.SEVERE,e.getMessage());
         }
     }
 
+    private void redirectUser(DataOutputStream dos) {
+        try {
+            dos.writeBytes("HTTP/1.1 302 Found \r\n");
+            dos.writeBytes("Location: http://localhost:80/\r\n");
+            dos.writeBytes("\r\n");
+            dos.flush();
+        } catch (IOException e) {
+            log.log(Level.SEVERE, e.getMessage());
+        }
+    }
+
+    private void addUserInRepository(String resource, String method) {
+        String queries;
+        if (method.equals("GET")) {
+            queries = resource.split("&")[1];
+        } else {
+            queries = resource;
+        }
+
+        String decodedQueries = URLDecoder.decode(queries, StandardCharsets.UTF_8);
+        System.out.println(decodedQueries);
+
+        Map<String,String> queryMap = HttpRequestUtils.parseQueryParameter(decodedQueries);
+
+        queryMap.forEach((key, value) -> {
+            System.out.println(key + ": " + value);
+        });
+
+        User user = new User(queryMap.get("userId"),queryMap.get("password"),queryMap.get("name"),queryMap.get("email"));
+
+        MemoryUserRepository.getInstance().addUser(user);
+
+        MemoryUserRepository.getInstance().findAll().forEach(System.out::println);
+    }
+
+    private boolean isSignup(String resource) {
+        return resource.split("\\?")[0].equals("/user/signup");
+    }
+
+    private static byte[] getWelcomePage(String resource) throws IOException {
+
+        if (resource.equals("/")) {
+            resource = "/index.html";
+        }
+        File file = new File("./webapp" + resource);
+        byte[] welcomePage = Files.readAllBytes(file.toPath());
+
+        return welcomePage;
+    }
+
     private void response200Header(DataOutputStream dos, int lengthOfBodyContent) {
         try {
             dos.writeBytes("HTTP/1.1 200 OK \r\n");
diff --git a/src/main/java/webserver/WebServer.java b/src/main/java/webserver/WebServer.java
index 150d0b8..b06d4fd 100644
--- a/src/main/java/webserver/WebServer.java
+++ b/src/main/java/webserver/WebServer.java
@@ -1,5 +1,7 @@
 package webserver;
 
+import db.MemoryUserRepository;
+
 import java.io.IOException;
 import java.net.ServerSocket;
 import java.net.Socket;
@@ -16,6 +18,7 @@ public static void main(String[] args) throws IOException {
         int port = DEFAULT_PORT;
         ExecutorService service = Executors.newFixedThreadPool(DEFAULT_THREAD_NUM);
 
+
         if (args.length != 0) {
             port = Integer.parseInt(args[0]);
         }

From 66b6aa4ba21e418349d9339bd28d174100afb55e Mon Sep 17 00:00:00 2001
From: seungwoo1209 <2002msw@naver.com>
Date: Tue, 1 Oct 2024 21:30:12 +0900
Subject: [PATCH 2/7] requirement 5 complete, cookie checked

---
 src/main/java/webserver/RequestHandler.java | 137 +++++++++++++-------
 1 file changed, 89 insertions(+), 48 deletions(-)

diff --git a/src/main/java/webserver/RequestHandler.java b/src/main/java/webserver/RequestHandler.java
index 8f99ff8..8cf9ece 100644
--- a/src/main/java/webserver/RequestHandler.java
+++ b/src/main/java/webserver/RequestHandler.java
@@ -11,6 +11,7 @@
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.util.Map;
+import java.util.NoSuchElementException;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
@@ -30,38 +31,11 @@ public void run() {
             BufferedReader br = new BufferedReader(new InputStreamReader(in));
             DataOutputStream dos = new DataOutputStream(out);
 
-
             String requestLine = br.readLine();
-
-
-//            String decodedLine = URLDecoder.decode(requestLine, StandardCharsets.UTF_8.name());
-//            System.out.println(decodedLine);
-//            Map<String,String> queryMap= HttpRequestUtils.parseQueryParameter(decodedLine);
-
-//            StringBuilder requestBody = new StringBuilder();
-//            String line;
-//            while ((line = br.readLine()) != null) {
-//                requestBody.append(line);
-//                requestBody.append("\n");
-//            }
-//            System.out.println("Request Body: " + requestBody.toString());
-
-//            String[] tokens = requestLine.split(" ");
-//            String method = tokens[0];  // HTTP 메서드 (GET 등)
-//            String resource = tokens[1];  // 요청된 리소스 (예: /, /index.html)
-//
-//            String pageName = resource.split("\\?")[0];
-//            String queryString = resource.split("\\?")[1];
-//
-//            resource = URLDecoder.decode(queryString, StandardCharsets.UTF_8.name());
-//            System.out.println(queryString);
-//            Map<String,String> queryMap = HttpRequestUtils.parseQueryParameter(queryString);
-//
-//            // 기본 리소스 경로 설정
-//            if (pageName.equals("/")) {
-//                pageName = "/index.html";
+//            for(String line = br.readLine(); !line.isEmpty() ; line = br.readLine()) {
+//                System.out.println("\t" + line);
 //            }
-//
+
             System.out.println("Request Line: " + requestLine);
 
             if (requestLine == null || requestLine.isEmpty()) {
@@ -76,7 +50,7 @@ public void run() {
                 case "GET":
                     if(isSignup(resource)){
                         addUserInRepository(resource, method);
-                        redirectUser(dos);
+                        redirectToHome(dos);
                     } else {
                         // 기본 리소스 경로 설정
                         byte[] welcomePage = getWelcomePage(resource);
@@ -87,25 +61,36 @@ public void run() {
 
                 case "POST":
                     if(isSignup(resource)){
-                        // 헤더 읽기
-                        int contentLength = 0;
-                        String line;
-                        System.out.println("Header: " );
-                        while (!(line = br.readLine()).isEmpty()) {
-                            System.out.println("\t" + line);
-                            if (line.startsWith("Content-Length")) {
-                                contentLength = Integer.parseInt(line.split(":")[1].trim());
+
+                        String body = getBodyInPOST(br);
+                        addUserInRepository(body, method);
+
+                        redirectToHome(dos);
+                    }
+                    if(isLogin(resource)){
+
+                        String body = getBodyInPOST(br);
+                        String[] idAndPassWord = body.split("&");
+
+                        String inputUserId = idAndPassWord[0].split("=")[1];
+                        String inputUserPW = idAndPassWord[0].split("=")[1];
+
+                        User UserFoundById = MemoryUserRepository.getInstance().findUserById(inputUserId);
+                        if(UserFoundById != null){
+
+                            if(UserFoundById.getPassword().equals(inputUserPW)){
+                                //비밀번호까지 일치 - 로그인 성공
+                                redirectHomeByLogin(dos);
+
+                            } else {
+                                //비밀번호가 틀렸을 경우
+                                redirectLoginFailed(dos);
                             }
-                        }
 
-                        // POST 요청의 경우, IOUtils를 사용해 바디 읽기
-                        if (contentLength > 0) {
-                            String body = IOUtils.readData(br, contentLength);  // IOUtils 활용
-                            System.out.println("Body: " + body);
-                            addUserInRepository(body, method);
+                        } else {
+                            // id가 없을 경우
+                            redirectLoginFailed(dos);
                         }
-
-                        redirectUser(dos);
                     }
                     break;
 
@@ -121,7 +106,63 @@ public void run() {
         }
     }
 
-    private void redirectUser(DataOutputStream dos) {
+    private void redirectHomeByLogin(DataOutputStream dos) {
+        try {
+            dos.writeBytes("HTTP/1.1 302 Found \r\n");
+            dos.writeBytes("Location: http://localhost:80/\r\n");
+            dos.writeBytes("Set-Cookie: logined=true; Path=/\n\r\n");
+            dos.writeBytes("\r\n");
+            dos.flush();
+        } catch (IOException e) {
+            log.log(Level.SEVERE, e.getMessage());
+        }
+    }
+
+    private void redirectLoginFailed(DataOutputStream dos) {
+        try {
+            dos.writeBytes("HTTP/1.1 302 Found \r\n");
+            dos.writeBytes("Location: http://localhost:80/user/login_failed.html\r\n");
+            dos.writeBytes("\r\n");
+            dos.flush();
+        } catch (IOException e) {
+            log.log(Level.SEVERE, e.getMessage());
+        }
+    }
+
+    private String getBodyInPOST(BufferedReader br) {
+        try {
+            // 헤더 읽기
+            int contentLength = 0;
+            String line;
+            System.out.println("Header: " );
+            while (!(line = br.readLine()).isEmpty()) {
+//                System.out.println("\t" + line);
+                if (line.startsWith("Content-Length")) {
+                    contentLength = Integer.parseInt(line.split(":")[1].trim());
+                }
+            }
+
+            // POST 요청의 경우, IOUtils를 사용해 바디 읽기
+            if (contentLength > 0) {
+                String body = IOUtils.readData(br, contentLength);  // IOUtils 활용
+                System.out.println("Body: " + body);
+                return body;
+            } else {
+                throw new NoSuchElementException("There is no Body");
+            }
+
+        } catch (IOException | NoSuchElementException e) {
+            log.log(Level.SEVERE, e.getMessage());
+        }
+
+        return "";
+    }
+
+    private boolean isLogin(String resource) {
+        return resource.equals("/user/login");
+    }
+
+    private void redirectToHome(DataOutputStream dos) {
         try {
             dos.writeBytes("HTTP/1.1 302 Found \r\n");
             dos.writeBytes("Location: http://localhost:80/\r\n");

From 9290a065002dcb1cc91e0b5d12f8a99960cd19fe Mon Sep 17 00:00:00 2001
From: seungwoo1209 <2002msw@naver.com>
Date: Tue, 1 Oct 2024 22:36:14 +0900
Subject: [PATCH 3/7] requirement 6 complete

---
 src/main/java/webserver/RequestHandler.java | 39 ++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/src/main/java/webserver/RequestHandler.java b/src/main/java/webserver/RequestHandler.java
index 8cf9ece..fa998ed 100644
--- a/src/main/java/webserver/RequestHandler.java
+++ b/src/main/java/webserver/RequestHandler.java
@@ -51,6 +51,19 @@ public void run() {
                     if(isSignup(resource)){
                         addUserInRepository(resource, method);
                         redirectToHome(dos);
+                    } else if(isUserList(resource)) {
+                        // 클라이언트에서 유저리스트로 요청이 들어온 상황
+
+                        // 1. 로그인이 된 상태인지 확인
+                        if(isLoggined(br)){
+                            System.out.println("ㅋ");
+                            byte[] welcomePage = getWelcomePage("/user/list.html");
+                            response200Header(dos, welcomePage.length);
+                            responseBody(dos, welcomePage);
+                        } else {
+                            redirectToHome(dos);
+                        }
+
                     } else {
                         // 기본 리소스 경로 설정
                         byte[] welcomePage = getWelcomePage(resource);
@@ -106,6 +119,30 @@ public void run() {
         }
     }
 
+    private boolean isLoggined(BufferedReader br) {
+
+        boolean isLoggined = false;
+        try {
+            // 헤더 읽기
+            String line;
+            System.out.println("Header: " );
+            while (!(line = br.readLine()).isEmpty()) {
+                System.out.println("\t" + line);
+                if (line.startsWith("Cookie")) {
+                    isLoggined = Boolean.parseBoolean(line.split("=")[1]);
+                }
+            }
+
+        } catch (IOException | NoSuchElementException e) {
+            log.log(Level.SEVERE, e.getMessage());
+        }
+        return isLoggined;
+    }
+
+    private boolean isUserList(String resource) {
+        return resource.split("\\?")[0].equals("/user/userList");
+    }
+
     private void redirectHomeByLogin(DataOutputStream dos) {
         try {
             dos.writeBytes("HTTP/1.1 302 Found \r\n");
@@ -136,7 +173,7 @@ private String getBodyInPOST(BufferedReader br) {
             String line;
             System.out.println("Header: " );
             while (!(line = br.readLine()).isEmpty()) {
-//                System.out.println("\t" + line);
+                System.out.println("\t" + line);
                 if (line.startsWith("Content-Length")) {
                     contentLength = Integer.parseInt(line.split(":")[1].trim());
                 }

From 300d327778bcf50712c58913f8a57f35b7230c2e Mon Sep 17 00:00:00 2001
From: seungwoo1209 <2002msw@naver.com>
Date: Wed, 2 Oct 2024 04:17:24 +0900
Subject: [PATCH 4/7] requirement 7 complete

---
 src/main/java/webserver/RequestHandler.java | 25 ++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/src/main/java/webserver/RequestHandler.java b/src/main/java/webserver/RequestHandler.java
index fa998ed..8a01784 100644
--- a/src/main/java/webserver/RequestHandler.java
+++ b/src/main/java/webserver/RequestHandler.java
@@ -56,9 +56,8 @@ public void run() {
 
                         // 1. 로그인이 된 상태인지 확인
                         if(isLoggined(br)){
-                            System.out.println("ㅋ");
                             byte[] welcomePage = getWelcomePage("/user/list.html");
-                            response200Header(dos, welcomePage.length);
+                            response200Header(dos, welcomePage.length,"html");
                             responseBody(dos, welcomePage);
                         } else {
                             redirectToHome(dos);
@@ -67,7 +66,14 @@ public void run() {
                     } else {
                         // 기본 리소스 경로 설정
                         byte[] welcomePage = getWelcomePage(resource);
-                        response200Header(dos, welcomePage.length);
+
+                        if(isRequestCSS(resource)){
+                            response200Header(dos, welcomePage.length,"css");
+                        } else {
+                            response200Header(dos, welcomePage.length,"html");
+                        }
+
+
                         responseBody(dos, welcomePage);
                     }
                     break;
@@ -119,6 +125,15 @@ public void run() {
         }
     }
 
+    private static boolean isRequestCSS(String resource) {
+        String[] splitByPeriod = resource.split("\\.");
+        if(splitByPeriod.length > 1){
+            return splitByPeriod[1].equals("css");
+        } else {
+            return false;
+        }
+    }
+
     private boolean isLoggined(BufferedReader br) {
 
         boolean isLoggined = false;
@@ -249,10 +264,10 @@ private static byte[] getWelcomePage(String resource) throws IOException {
         return welcomePage;
     }
 
-    private void response200Header(DataOutputStream dos, int lengthOfBodyContent) {
+    private void response200Header(DataOutputStream dos, int lengthOfBodyContent, String contentType) {
         try {
             dos.writeBytes("HTTP/1.1 200 OK \r\n");
-            dos.writeBytes("Content-Type: text/html;charset=utf-8\r\n");
+            dos.writeBytes("Content-Type: text/"+contentType+";charset=utf-8\r\n");
             dos.writeBytes("Content-Length: " + lengthOfBodyContent + "\r\n");
             dos.writeBytes("\r\n");
         } catch (IOException e) {

From f2ad2a07bc7b37552823f76d9e64fdb9e0389d93 Mon Sep 17 00:00:00 2001
From: seungwoo1209 <2002msw@naver.com>
Date: Wed, 2 Oct 2024 06:20:29 +0900
Subject: [PATCH 5/7] refactor: name change, break down into smaller methods

---
 src/main/java/webserver/RequestHandler.java | 224 ++++++++++++--------
 1 file changed, 131 insertions(+), 93 deletions(-)

diff --git a/src/main/java/webserver/RequestHandler.java b/src/main/java/webserver/RequestHandler.java
index 8a01784..852e397 100644
--- a/src/main/java/webserver/RequestHandler.java
+++ b/src/main/java/webserver/RequestHandler.java
@@ -10,6 +10,7 @@
 import java.net.URLDecoder;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
+import java.nio.file.Path;
 import java.util.Map;
 import java.util.NoSuchElementException;
 import java.util.logging.Level;
@@ -32,9 +33,6 @@ public void run() {
             DataOutputStream dos = new DataOutputStream(out);
 
             String requestLine = br.readLine();
-//            for(String line = br.readLine(); !line.isEmpty() ; line = br.readLine()) {
-//                System.out.println("\t" + line);
-//            }
 
             System.out.println("Request Line: " + requestLine);
 
@@ -48,84 +46,103 @@ public void run() {
 
             switch (method) {
                 case "GET":
-                    if(isSignup(resource)){
-                        addUserInRepository(resource, method);
-                        redirectToHome(dos);
-                    } else if(isUserList(resource)) {
-                        // 클라이언트에서 유저리스트로 요청이 들어온 상황
-
-                        // 1. 로그인이 된 상태인지 확인
-                        if(isLoggined(br)){
-                            byte[] welcomePage = getWelcomePage("/user/list.html");
-                            response200Header(dos, welcomePage.length,"html");
-                            responseBody(dos, welcomePage);
-                        } else {
-                            redirectToHome(dos);
-                        }
-
-                    } else {
-                        // 기본 리소스 경로 설정
-                        byte[] welcomePage = getWelcomePage(resource);
-
-                        if(isRequestCSS(resource)){
-                            response200Header(dos, welcomePage.length,"css");
-                        } else {
-                            response200Header(dos, welcomePage.length,"html");
-                        }
-
-
-                        responseBody(dos, welcomePage);
-                    }
+                    handleGetRequest(resource, method, dos, br);
                     break;
 
                 case "POST":
-                    if(isSignup(resource)){
+                    handlePostRequest(resource, method, dos, br);
+                    break;
 
-                        String body = getBodyInPOST(br);
-                        addUserInRepository(body, method);
+                default:
+                    break;
+            }
 
-                        redirectToHome(dos);
-                    }
-                    if(isLogin(resource)){
+        } catch (IOException e) {
+            log.log(Level.SEVERE,e.getMessage());
+        }
+    }
 
-                        String body = getBodyInPOST(br);
-                        String[] idAndPassWord = body.split("&");
+    private void handleGetRequest(String resource, String method, DataOutputStream dos, BufferedReader br) throws IOException {
+        if(isSignupRequest(resource)){
+            processSignup(resource, method, dos);
+        } else if(isUserListRequest(resource)) {
+            processUserListRequest(resource, dos, br);
+        } else {
+            processGetPageRequest(resource, dos);
+        }
+    }
 
-                        String inputUserId = idAndPassWord[0].split("=")[1];
-                        String inputUserPW = idAndPassWord[0].split("=")[1];
+    private void handlePostRequest(String resource, String method, DataOutputStream dos, BufferedReader br) {
+        String body = getBodyInPOST(br);
+        if(isSignupRequest(resource)){
+            processSignup(body, method, dos);
+        }
+        if(isLoginRequest(resource)){
+            processLogin(dos, body);
+        }
+    }
 
-                        User UserFoundById = MemoryUserRepository.getInstance().findUserById(inputUserId);
-                        if(UserFoundById != null){
+    private void processLogin(DataOutputStream dos, String body) {
+        String[] idAndPassword = body.split("&");
 
-                            if(UserFoundById.getPassword().equals(inputUserPW)){
-                                //비밀번호까지 일치 - 로그인 성공
-                                redirectHomeByLogin(dos);
+        if(isUserExist(idAndPassword)){
+            redirectHomeByLogin(dos);
+        } else {
+            redirectLoginFailed(dos);
+        }
+    }
 
-                            } else {
-                                //비밀번호가 틀렸을 경우
-                                redirectLoginFailed(dos);
-                            }
+    private boolean isUserExist(String[] idAndPassword) {
+        String inputUserId = idAndPassword[0].split("=")[1];
+        String inputUserPW = idAndPassword[1].split("=")[1];
 
-                        } else {
-                            // id가 없을 경우
-                            redirectLoginFailed(dos);
-                        }
-                    }
-                    break;
+        User UserFoundById = MemoryUserRepository.getInstance().findUserById(inputUserId);
+        if(UserFoundById != null){
+            return isPasswordMatch(UserFoundById, inputUserPW);
+        } else {
+            // id가 없을 경우
+            return false;
+        }
+    }
 
-                default:
-                    break;
-            }
+    private boolean isPasswordMatch(User UserFoundById, String inputUserPW) {
+        if(UserFoundById.getPassword().equals(inputUserPW)){
+            //비밀번호까지 일치 - 로그인 성공
+            return true;
 
+        } else {
+            //비밀번호가 틀렸을 경우
+            return false;
+        }
+    }
 
 
+    private void processGetPageRequest(String resource, DataOutputStream dos) throws IOException {
+        // 기본 리소스 경로 설정
+        byte[] page = getPageinWebappFolder(resource);
 
-        } catch (IOException e) {
-            log.log(Level.SEVERE,e.getMessage());
+        response200Header(dos, page.length, isRequestingCSS(resource) ? "css" : "html");
+
+        responseBody(dos, page);
+    }
+
+    private void processUserListRequest(String resource, DataOutputStream dos, BufferedReader br) throws IOException {
+        // 클라이언트에서 유저리스트로 요청이 들어온 상황
+
+        // 1. 로그인이 된 상태인지 확인
+        if(isLoggined(br)){
+            processGetPageRequest(resource,dos);
+        } else {
+            redirectToHome(dos);
         }
     }
 
-    private static boolean isRequestCSS(String resource) {
+    private void processSignup(String resource, String method, DataOutputStream dos) {
+        addUserInRepository(resource, method);
+        redirectToHome(dos);
+    }
+
+    private static boolean isRequestingCSS(String resource) {
         String[] splitByPeriod = resource.split("\\.");
         if(splitByPeriod.length > 1){
             return splitByPeriod[1].equals("css");
@@ -135,26 +152,44 @@ private static boolean isRequestCSS(String resource) {
     }
 
     private boolean isLoggined(BufferedReader br) {
+            String line = getCookieContainingLineFromHeader(br);
 
-        boolean isLoggined = false;
+            if(line != null){
+                return parseLoginStatusFromCookie(line);
+            } else {
+                return false;
+            }
+
+    }
+
+    private String getCookieContainingLineFromHeader(BufferedReader br) {
+        // 헤더 읽기
         try {
-            // 헤더 읽기
-            String line;
-            System.out.println("Header: " );
-            while (!(line = br.readLine()).isEmpty()) {
-                System.out.println("\t" + line);
-                if (line.startsWith("Cookie")) {
-                    isLoggined = Boolean.parseBoolean(line.split("=")[1]);
+            String lineFromBr;
+            while (!(lineFromBr = br.readLine()).isEmpty()) {
+                //TODO 풀리퀘 올릴때 삭제
+                System.out.println("\t" + lineFromBr);
+
+                if (lineFromBr.startsWith("Cookie")) {
+                    return lineFromBr;
                 }
             }
-
-        } catch (IOException | NoSuchElementException e) {
+        } catch (IOException e) {
             log.log(Level.SEVERE, e.getMessage());
         }
-        return isLoggined;
+        return null;
+    }
+
+    private boolean parseLoginStatusFromCookie(String line) {
+        try {
+            return Boolean.parseBoolean(line.split("=")[1]);
+        } catch (ArrayIndexOutOfBoundsException e) {
+            log.log(Level.WARNING, "Invalid cookie format: " + line);
+            return false;
+        }
     }
 
-    private boolean isUserList(String resource) {
+    private boolean isUserListRequest(String resource) {
         return resource.split("\\?")[0].equals("/user/userList");
     }
 
@@ -210,7 +245,7 @@ private String getBodyInPOST(BufferedReader br) {
         return "";
     }
 
-    private boolean isLogin(String resource) {
+    private boolean isLoginRequest(String resource) {
         return resource.equals("/user/login");
     }
 
@@ -226,42 +261,45 @@ private void redirectToHome(DataOutputStream dos) {
     }
 
     private void addUserInRepository(String resource, String method) {
-        String queries;
-        if (method.equals("GET")) {
-            queries = resource.split("&")[1];
-        } else {
-            queries = resource;
-        }
+        String queries = getLineIncludingQueries(resource, method);
 
         String decodedQueries = URLDecoder.decode(queries, StandardCharsets.UTF_8);
-        System.out.println(decodedQueries);
 
         Map<String,String> queryMap = HttpRequestUtils.parseQueryParameter(decodedQueries);
 
-        queryMap.forEach((key, value) -> {
-            System.out.println(key + ": " + value);
-        });
-
         User user = new User(queryMap.get("userId"),queryMap.get("password"),queryMap.get("name"),queryMap.get("email"));
 
         MemoryUserRepository.getInstance().addUser(user);
+    }
 
-        MemoryUserRepository.getInstance().findAll().forEach(System.out::println);
+    private static String getLineIncludingQueries(String resource, String method) {
+        String queries;
+        if (method.equals("GET")) {
+            queries = resource.split("&")[1];
+        } else {
+            queries = resource;
+        }
+        return queries;
     }
 
-    private boolean isSignup(String resource) {
+    private boolean isSignupRequest(String resource) {
         return resource.split("\\?")[0].equals("/user/signup");
     }
 
-    private static byte[] getWelcomePage(String resource) throws IOException {
+    private static byte[] getPageinWebappFolder(String resource) throws IOException {
+        byte[] page = Files.readAllBytes(convertToPath(resource));
 
+        return page;
+    }
+
+    private static Path convertToPath(String resource) {
         if (resource.equals("/")) {
             resource = "/index.html";
         }
-        File file = new File("./webapp" + resource);
-        byte[] welcomePage = Files.readAllBytes(file.toPath());
-
-        return welcomePage;
+        if(resource.equals("/user/userList")){
+            resource = "/user/list.html";
+        }
+        return Path.of("./webapp" + resource);
     }
 
     private void response200Header(DataOutputStream dos, int lengthOfBodyContent, String contentType) {

From b236e10a7a2abe7e27349c1eebd45f8a7c30930b Mon Sep 17 00:00:00 2001
From: seungwoo1209 <2002msw@naver.com>
Date: Fri, 4 Oct 2024 22:10:00 +0900
Subject: [PATCH 6/7] change of redirection in userlist page

---
 src/main/java/webserver/RequestHandler.java | 23 ++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/src/main/java/webserver/RequestHandler.java b/src/main/java/webserver/RequestHandler.java
index 852e397..227a2c3 100644
--- a/src/main/java/webserver/RequestHandler.java
+++ b/src/main/java/webserver/RequestHandler.java
@@ -24,6 +24,16 @@ public RequestHandler(Socket connection) {
         this.connection = connection;
     }
 
+    /*
+    TODO br 주면 파싱하는 객체를 만들고 거기서 필요한 값 받기
+    한번만 써도 되는 객체에는 static 사용 고려하기
+    이 객체를 다른데에서 접근하는 곳이 있나?
+    static 블럭이 뭐하는 건지 알아보기
+    인코딩도 IOUtils 사용하는게 좋아
+    시크릿 모드에서 테스트
+    리디렉트 할때 로그인 안됐으면 로그인 페이지로 리디렉트하기
+    */
+
     @Override
     public void run() {
 
@@ -133,7 +143,18 @@ private void processUserListRequest(String resource, DataOutputStream dos, Buffe
         if(isLoggined(br)){
             processGetPageRequest(resource,dos);
         } else {
-            redirectToHome(dos);
+            redirectToLogin(dos);
+        }
+    }
+
+    private void redirectToLogin(DataOutputStream dos) {
+        try {
+            dos.writeBytes("HTTP/1.1 302 Found \r\n");
+            dos.writeBytes("Location: http://localhost:80/user/login.html\r\n");
+            dos.writeBytes("\r\n");
+            dos.flush();
+        } catch (IOException e) {
+            log.log(Level.SEVERE, e.getMessage());
         }
     }
 

From 48e159d042b9bf7c581fe8205496d10e87c0e45c Mon Sep 17 00:00:00 2001
From: seungwoo1209 <2002msw@naver.com>
Date: Fri, 4 Oct 2024 23:46:53 +0900
Subject: [PATCH 7/7] refactor 1: enum constants

---
 src/main/java/Enums/FileLocation.java       | 15 ++++
 src/main/java/Enums/startLine.java          | 16 ++++
 src/main/java/webserver/RequestHandler.java | 97 +++++++++++----------
 3 files changed, 84 insertions(+), 44 deletions(-)
 create mode 100644 src/main/java/Enums/FileLocation.java
 create mode 100644 src/main/java/Enums/startLine.java

diff --git a/src/main/java/Enums/FileLocation.java b/src/main/java/Enums/FileLocation.java
new file mode 100644
index 0000000..af66db8
--- /dev/null
+++ b/src/main/java/Enums/FileLocation.java
@@ -0,0 +1,15 @@
+package Enums;
+
+public enum FileLocation {
+    INDEX("/index.html"),USER_LIST("/user/list.html"),USER_LOGIN("user/login.html"), USER_LOGINFAILED("/user/login_failed.html");
+
+    private String location;
+
+    private FileLocation(String location) {
+        this.location = location;
+    }
+
+    public String getLocation(){
+        return location;
+    }
+}
diff --git a/src/main/java/Enums/startLine.java b/src/main/java/Enums/startLine.java
new file mode 100644
index 0000000..1cf56d1
--- /dev/null
+++ b/src/main/java/Enums/startLine.java
@@ -0,0 +1,16 @@
+package Enums;
+
+public enum startLine {
+
+    RESPONSE_FOUND("HTTP/1.1 302 Found "),RESPONSE_OK("HTTP/1.1 200 OK ");
+
+    private String text;
+
+    private startLine(String text) {
+        this.text = text;
+    }
+
+    public String getText() {
+        return text;
+    }
+}
diff --git a/src/main/java/webserver/RequestHandler.java b/src/main/java/webserver/RequestHandler.java
index 227a2c3..d94c9fb 100644
--- a/src/main/java/webserver/RequestHandler.java
+++ b/src/main/java/webserver/RequestHandler.java
@@ -1,5 +1,7 @@
 package webserver;
 
+import Enums.FileLocation;
+import Enums.startLine;
 import db.MemoryUserRepository;
 import http.util.HttpRequestUtils;
 import http.util.IOUtils;
@@ -17,6 +19,9 @@
 import java.util.logging.Logger;
 
 public class RequestHandler implements Runnable{
+    static final String BaseURL = "http://localhost:80";
+    static final String LINE_BREAK = "\r\n";
+
     Socket connection;
     private static final Logger log = Logger.getLogger(RequestHandler.class.getName());
 
@@ -30,8 +35,6 @@ public RequestHandler(Socket connection) {
     이 객체를 다른데에서 접근하는 곳이 있나?
     static 블럭이 뭐하는 건지 알아보기
     인코딩도 IOUtils 사용하는게 좋아
-    시크릿 모드에서 테스트
-    리디렉트 할때 로그인 안됐으면 로그인 페이지로 리디렉트하기
     */
 
     @Override
@@ -147,17 +150,6 @@ private void processUserListRequest(String resource, DataOutputStream dos, Buffe
         }
     }
 
-    private void redirectToLogin(DataOutputStream dos) {
-        try {
-            dos.writeBytes("HTTP/1.1 302 Found \r\n");
-            dos.writeBytes("Location: http://localhost:80/user/login.html\r\n");
-            dos.writeBytes("\r\n");
-            dos.flush();
-        } catch (IOException e) {
-            log.log(Level.SEVERE, e.getMessage());
-        }
-    }
-
     private void processSignup(String resource, String method, DataOutputStream dos) {
         addUserInRepository(resource, method);
         redirectToHome(dos);
@@ -210,16 +202,23 @@ private boolean parseLoginStatusFromCookie(String line) {
         }
     }
 
-    private boolean isUserListRequest(String resource) {
-        return resource.split("\\?")[0].equals("/user/userList");
+    private void redirectToLogin(DataOutputStream dos) {
+        try {
+            dos.writeBytes(startLine.RESPONSE_FOUND.getText() + LINE_BREAK);
+            dos.writeBytes("Location: "+ BaseURL + FileLocation.USER_LOGIN.getLocation() + LINE_BREAK);
+            dos.writeBytes(LINE_BREAK);
+            dos.flush();
+        } catch (IOException e) {
+            log.log(Level.SEVERE, e.getMessage());
+        }
     }
 
     private void redirectHomeByLogin(DataOutputStream dos) {
         try {
-            dos.writeBytes("HTTP/1.1 302 Found \r\n");
-            dos.writeBytes("Location: http://localhost:80/\r\n");
-            dos.writeBytes("Set-Cookie: logined=true; Path=/\n\r\n");
-            dos.writeBytes("\r\n");
+            dos.writeBytes(startLine.RESPONSE_FOUND.getText() + LINE_BREAK);
+            dos.writeBytes("Location: " + BaseURL + LINE_BREAK);
+            dos.writeBytes("Set-Cookie: logined=true; Path=/\n"+LINE_BREAK);
+            dos.writeBytes(LINE_BREAK);
             dos.flush();
         } catch (IOException e) {
             log.log(Level.SEVERE, e.getMessage());
@@ -228,15 +227,40 @@ private void redirectHomeByLogin(DataOutputStream dos) {
 
     private void redirectLoginFailed(DataOutputStream dos) {
         try {
-            dos.writeBytes("HTTP/1.1 302 Found \r\n");
-            dos.writeBytes("Location: http://localhost:80/user/login_failed.html\r\n");
-            dos.writeBytes("\r\n");
+            dos.writeBytes(startLine.RESPONSE_FOUND.getText() + LINE_BREAK);
+            dos.writeBytes("Location: " + BaseURL + FileLocation.USER_LOGINFAILED.getLocation() +LINE_BREAK);
+            dos.writeBytes(LINE_BREAK);
             dos.flush();
         } catch (IOException e) {
             log.log(Level.SEVERE, e.getMessage());
         }
     }
 
+
+    private void redirectToHome(DataOutputStream dos) {
+        try {
+            dos.writeBytes(startLine.RESPONSE_FOUND.getText() + LINE_BREAK);
+            dos.writeBytes("Location: " + BaseURL + LINE_BREAK);
+            dos.writeBytes(LINE_BREAK);
+            dos.flush();
+        } catch (IOException e) {
+            log.log(Level.SEVERE, e.getMessage());
+        }
+    }
+
+    private boolean isUserListRequest(String resource) {
+        return resource.split("\\?")[0].equals("/user/userList");
+    }
+
+    private boolean isLoginRequest(String resource) {
+        return resource.equals("/user/login");
+    }
+
+    private boolean isSignupRequest(String resource) {
+        return resource.split("\\?")[0].equals("/user/signup");
+    }
+
+
     private String getBodyInPOST(BufferedReader br) {
         try {
             // 헤더 읽기
@@ -266,20 +290,7 @@ private String getBodyInPOST(BufferedReader br) {
         return "";
     }
 
-    private boolean isLoginRequest(String resource) {
-        return resource.equals("/user/login");
-    }
 
-    private void redirectToHome(DataOutputStream dos) {
-        try {
-            dos.writeBytes("HTTP/1.1 302 Found \r\n");
-            dos.writeBytes("Location: http://localhost:80/\r\n");
-            dos.writeBytes("\r\n");
-            dos.flush();
-        } catch (IOException e) {
-            log.log(Level.SEVERE, e.getMessage());
-        }
-    }
 
     private void addUserInRepository(String resource, String method) {
         String queries = getLineIncludingQueries(resource, method);
@@ -303,9 +314,7 @@ private static String getLineIncludingQueries(String resource, String method) {
         return queries;
     }
 
-    private boolean isSignupRequest(String resource) {
-        return resource.split("\\?")[0].equals("/user/signup");
-    }
+
 
     private static byte[] getPageinWebappFolder(String resource) throws IOException {
         byte[] page = Files.readAllBytes(convertToPath(resource));
@@ -315,20 +324,20 @@ private static byte[] getPageinWebappFolder(String resource) throws IOException
 
     private static Path convertToPath(String resource) {
         if (resource.equals("/")) {
-            resource = "/index.html";
+            resource = FileLocation.INDEX.getLocation();
         }
         if(resource.equals("/user/userList")){
-            resource = "/user/list.html";
+            resource = FileLocation.USER_LIST.getLocation();
         }
         return Path.of("./webapp" + resource);
     }
 
     private void response200Header(DataOutputStream dos, int lengthOfBodyContent, String contentType) {
         try {
-            dos.writeBytes("HTTP/1.1 200 OK \r\n");
-            dos.writeBytes("Content-Type: text/"+contentType+";charset=utf-8\r\n");
-            dos.writeBytes("Content-Length: " + lengthOfBodyContent + "\r\n");
-            dos.writeBytes("\r\n");
+            dos.writeBytes(startLine.RESPONSE_OK.getText() + LINE_BREAK);
+            dos.writeBytes("Content-Type: text/"+contentType+";charset=utf-8"+LINE_BREAK);
+            dos.writeBytes("Content-Length: " + lengthOfBodyContent + LINE_BREAK);
+            dos.writeBytes(LINE_BREAK);
         } catch (IOException e) {
             log.log(Level.SEVERE, e.getMessage());
         }