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Oraindropjavajigi
Oraindrop
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javajigi
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Step1 (#41)
* first requirement show index.html page * requirement2 implement get method join * requirement3 implement post mapping * implement httpstatus 302 header * requirement4 and refactoring implement redirect 302 header extract method and class * change a package from ResponsMessage * incomplete login function * implement login response header set cookie * requirement6 로그인 시 user/list 조회 가능 * requirement7, apply css
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11 files changed

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lines changed

11 files changed

+349
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lines changed

‎src/main/java/controller/MainController.java

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package controller;
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import dto.ResponseMessage;
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import util.HttpResponseHeaderUtils;
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import java.io.File;
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import java.io.IOException;
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import java.nio.file.Files;
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public class MainController {
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public static ResponseMessage showHtml(String path) throws IOException {
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return ResponseMessage.ofBody(Files.readAllBytes(new File("./webapp" + path).toPath()));
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}
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public static ResponseMessage showDefaultMessage() {
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return ResponseMessage.ofDefault();
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}
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public static ResponseMessage showCss(String path) throws IOException {
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byte[] body = Files.readAllBytes(new File("./webapp" + path).toPath());
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return ResponseMessage.ofMessage(HttpResponseHeaderUtils.generate200CssHeader(body.length), body);
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}
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}

‎src/main/java/controller/UserController.java

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package controller;
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import db.DataBase;
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import dto.ResponseMessage;
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import model.User;
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import org.slf4j.Logger;
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import util.HttpRequestUtils;
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import util.HttpResponseHeaderUtils;
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import util.HttpResponseHtmlUtils;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.util.Map;
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import static org.slf4j.LoggerFactory.getLogger;
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public class UserController {
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private static final Logger log = getLogger(UserController.class);
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public static ResponseMessage create(BufferedReader br, String headerFirstLine) throws IOException {
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Map<String, String> header = HttpRequestUtils.readHeader(br, headerFirstLine);
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Map<String, String> body = HttpRequestUtils.readRequestBody(br, Integer.parseInt(header.get("Content-Length")));
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User newUser =
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User.of(body.get("userId"), body.get("password"), body.get("name"), body.get("email"));
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DataBase.addUser(newUser);
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return ResponseMessage.ofMessage(HttpResponseHeaderUtils.generate302Header("/index.html"), "".getBytes());
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}
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public static ResponseMessage login(BufferedReader br, String headerFirstLine) throws IOException {
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Map<String, String> header = HttpRequestUtils.readHeader(br, headerFirstLine);
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Map<String, String> parseValues = HttpRequestUtils.readRequestBody(br, Integer.parseInt(header.get("Content-Length")));
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User maybeUser = DataBase.findUserById(parseValues.get("userId"));
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if(maybeUser.isEmpty()) return ResponseMessage.ofMessage(HttpResponseHeaderUtils.generate302CookieHeader("/user/login_failed.html", false), "".getBytes());
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if(maybeUser.isCorrect(parseValues.get("password"))){
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return ResponseMessage.ofMessage(HttpResponseHeaderUtils.generate302CookieHeader("/index.html", true), "".getBytes());
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}
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return ResponseMessage.ofMessage(HttpResponseHeaderUtils.generate302CookieHeader("/user/login_failed.html", false), "".getBytes());
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}
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public static ResponseMessage list(BufferedReader br, String headerFirstLine) throws IOException {
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Map<String, String> header = HttpRequestUtils.readHeader(br, headerFirstLine);
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if(isLogin(header)) {
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return ResponseMessage.ofBody(HttpResponseHtmlUtils.generate(DataBase.findAll()).getBytes());
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}
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return ResponseMessage.ofMessage(HttpResponseHeaderUtils.generate302Header("/user/login.html"), "".getBytes());
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}
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private static boolean isLogin(Map<String, String> header) {
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if(header.get("Cookie") != null){
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String[] cookie = header.get("Cookie").split("=");
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if(cookie.length == 2) {
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return Boolean.parseBoolean(cookie[1]);
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}
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}
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return false;
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}
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}

‎src/main/java/db/DataBase.java

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@@ -2,6 +2,7 @@
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import java.util.Collection;
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import java.util.Map;
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import java.util.Optional;
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import com.google.common.collect.Maps;
78

@@ -15,7 +16,7 @@ public static void addUser(User user) {
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}
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public static User findUserById(String userId) {
18-
return users.get(userId);
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return users.getOrDefault(userId, User.ofEmpty());
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}
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public static Collection<User> findAll() {

‎src/main/java/dto/ResponseMessage.java

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package dto;
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import org.slf4j.Logger;
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import util.HttpResponseHeaderUtils;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import static org.slf4j.LoggerFactory.getLogger;
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public class ResponseMessage {
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private static final Logger log = getLogger(ResponseMessage.class);
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private String header;
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private byte[] body;
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private ResponseMessage(String header, byte[] body) {
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this.header = header;
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this.body = body;
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}
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public static ResponseMessage ofDefault() {
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return ResponseMessage.ofBody("Hello World".getBytes());
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}
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public static ResponseMessage ofBody(byte[] body) {
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return new ResponseMessage(HttpResponseHeaderUtils.generate200Header(body.length), body);
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}
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public static ResponseMessage ofMessage(String header, byte[] body) {
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return new ResponseMessage(header, body);
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}
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public void response(DataOutputStream dos) {
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try {
36+
log.debug("responseHeader : {}", header);
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dos.writeBytes(header);
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dos.write(body, 0, body.length);
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dos.flush();
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} catch (IOException e) {
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log.error(e.getMessage());
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}
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}
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}

‎src/main/java/model/User.java

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@@ -6,7 +6,19 @@ public class User {
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private String name;
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private String email;
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public User(String userId, String password, String name, String email) {
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public static User of(String userId, String password, String name, String email) {
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return new User(userId, password, name, email);
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}
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public static User ofEmpty() {
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return new User();
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}
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private User() {
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}
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private User(String userId, String password, String name, String email) {
1022
this.userId = userId;
1123
this.password = password;
1224
this.name = name;
@@ -29,8 +41,16 @@ public String getEmail() {
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return email;
3042
}
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44+
public boolean isCorrect(String password) {
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return this.password.equals(password);
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}
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public boolean isEmpty() {
49+
return this.userId == null;
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}
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3252
@Override
3353
public String toString() {
34-
return "User [userId=" + userId + ", password=" + password + ", name=" + name + ", email=" + email + "]";
54+
return "User [userId=" + userId + ", name=" + name + ", email=" + email + "]";
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}
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}

‎src/main/java/util/HttpRequestUtils.java

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package util;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.util.Arrays;
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import java.util.HashMap;
47
import java.util.Map;
58
import java.util.stream.Collectors;
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710
import com.google.common.base.Strings;
811
import com.google.common.collect.Maps;
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import org.slf4j.Logger;
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14+
import static org.slf4j.LoggerFactory.getLogger;
915

1016
public class HttpRequestUtils {
17+
private static final Logger log = getLogger(HttpRequestUtils.class);
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1119
/**
1220
* @param queryString은
1321
* URL에서 ? 이후에 전달되는 field1=value1&field2=value2 형식임
@@ -53,6 +61,24 @@ public static Pair parseHeader(String header) {
5361
return getKeyValue(header, ": ");
5462
}
5563

64+
public static Map<String, String> readHeader(BufferedReader br, String headerFirstLine) throws IOException {
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Map<String, String> header = new HashMap<>();
66+
while(!headerFirstLine.equals("") && headerFirstLine != null) {
67+
headerFirstLine = br.readLine();
68+
String[] tokens = headerFirstLine.split(": ");
69+
if(tokens.length == 2) {
70+
header.put(tokens[0], tokens[1]);
71+
}
72+
}
73+
log.debug("header map : {}", header);
74+
return header;
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}
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public static Map<String, String> readRequestBody(BufferedReader br, int contentLength) throws IOException {
78+
String requestBody = IOUtils.readData(br, contentLength);
79+
return parseQueryString(requestBody);
80+
}
81+
5682
public static class Pair {
5783
String key;
5884
String value;

‎src/main/java/util/HttpResponseHeaderUtils.java

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package util;
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public class HttpResponseHeaderUtils {
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public static final String NEW_LINE = System.lineSeparator();
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public static String generate200Header(int lengthOfBodyContent) {
7+
StringBuilder sb = new StringBuilder()
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.append("HTTP/1.1 200 OK")
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.append(NEW_LINE)
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.append(generateHtmlContentType())
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.append(generateContentLength(lengthOfBodyContent))
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.append(NEW_LINE);
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return sb.toString();
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}
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16+
public static String generate302Header(String path) {
17+
StringBuilder sb = new StringBuilder()
18+
.append("HTTP/1.1 302 Found")
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.append(NEW_LINE)
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.append("Location: ")
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.append(path)
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.append(NEW_LINE)
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.append(generateHtmlContentType())
24+
.append(NEW_LINE);
25+
return sb.toString();
26+
}
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28+
public static String generate200CssHeader(int lengthOfBodyContent) {
29+
StringBuilder sb = new StringBuilder()
30+
.append("HTTP/1.1 200 OK")
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.append(NEW_LINE)
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.append(generateCssContentType())
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.append(generateContentLength(lengthOfBodyContent))
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.append(NEW_LINE);
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return sb.toString();
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}
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38+
public static String generate302CookieHeader(String path, boolean bool) {
39+
StringBuilder sb = new StringBuilder()
40+
.append("HTTP/1.1 302 Found")
41+
.append(NEW_LINE)
42+
.append("Location: ")
43+
.append(path)
44+
.append(NEW_LINE)
45+
.append(generateHtmlContentType())
46+
.append(generateCookie(bool))
47+
.append(NEW_LINE);
48+
return sb.toString();
49+
}
50+
51+
private static String generateHtmlContentType() {
52+
StringBuilder sb = new StringBuilder()
53+
.append("Content-Type: text/html;charset=utf-8")
54+
.append(NEW_LINE);
55+
return sb.toString();
56+
}
57+
58+
private static String generateCssContentType() {
59+
StringBuilder sb = new StringBuilder()
60+
.append("Content-Type: text/css;charset=utf-8")
61+
.append(NEW_LINE);
62+
return sb.toString();
63+
}
64+
65+
private static String generateContentLength(int lengthOfBodyContent) {
66+
StringBuilder sb = new StringBuilder()
67+
.append("Content-Length: ")
68+
.append(lengthOfBodyContent)
69+
.append(NEW_LINE);
70+
return sb.toString();
71+
}
72+
73+
private static String generateCookie(boolean bool) {
74+
StringBuilder sb = new StringBuilder()
75+
.append("Set-Cookie: logined=")
76+
.append(bool)
77+
.append("; Path=/")
78+
.append(NEW_LINE);
79+
return sb.toString();
80+
}
81+
}

‎src/main/java/util/HttpResponseHtmlUtils.java

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package util;
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3+
import model.User;
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5+
import java.util.Collection;
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7+
public class HttpResponseHtmlUtils {
8+
public static String generate(Collection<User> users) {
9+
StringBuilder sb = new StringBuilder()
10+
.append("<html>").append(System.lineSeparator())
11+
.append("<body>").append(System.lineSeparator());
12+
for (User user : users) {
13+
sb.append("<p>")
14+
.append(user.toString())
15+
.append("</p>")
16+
.append(System.lineSeparator());
17+
}
18+
sb.append("</body>").append(System.lineSeparator())
19+
.append("</html>");
20+
return sb.toString();
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}
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}

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