[톰캣 구현하기 3, 4단계] 썬샷(오진택) 미션 제출합니다.

tomcat/src/main/java/nextstep/jwp/RequestMapping.java

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+package nextstep.jwp;
+
+import java.util.ArrayList;
+import java.util.List;
+import nextstep.jwp.commandcontroller.Controller;
+import nextstep.jwp.request.HttpRequest;
+
+public class RequestMapping {
+
+    private final List<Controller> controllers = new ArrayList<>();
+    private Controller defaultController;
+
+    public RequestMapping(final List<Controller> controllers) {
+        this.controllers.addAll(controllers);
+    }
+
+    public void setDefaultController(final Controller controller) {
+        this.defaultController = controller;
+    }
+
+    public Controller getController(final HttpRequest request) {
+        return controllers.stream()
+                .filter(controller -> controller.canHandle(request))
+                .findAny()
+                .orElse(defaultController);
+    }
+}

tomcat/src/main/java/nextstep/jwp/commandcontroller/AbstractController.java

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+package nextstep.jwp.commandcontroller;
+
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import nextstep.jwp.request.HttpRequest;
+import nextstep.jwp.response.HttpResponse;
+
+public class AbstractController implements Controller {
+
+    protected static final String DEFAULT_FILE_LOCATION = "static/";
+
+    @Override
+    public boolean canHandle(HttpRequest request) {
+        return false;
+    }
+
+    @Override
+    public void service(HttpRequest request, HttpResponse response) throws Exception {
+        // http method 분기문
+    }
+
+    protected String readResponseBody(final String requestUri) throws IOException, URISyntaxException {
+        final URL url = getClass().getClassLoader().getResource(DEFAULT_FILE_LOCATION + requestUri);
+        if (url == null) {
+            URL notFoundUrl = getClass().getClassLoader().getResource(DEFAULT_FILE_LOCATION + "404.html");
+            final var path = Paths.get(notFoundUrl.toURI());
+            return Files.readString(path);
+        }
+        final var path = Paths.get(url.toURI());
+        return Files.readString(path);
+    }
+}

tomcat/src/main/java/nextstep/jwp/commandcontroller/Controller.java

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+package nextstep.jwp.commandcontroller;
+
+import nextstep.jwp.request.HttpRequest;
+import nextstep.jwp.response.HttpResponse;
+
+public interface Controller {
+
+    boolean canHandle(HttpRequest httpRequest);
+    void service(HttpRequest httpRequest, HttpResponse httpResponse) throws Exception;
+}

tomcat/src/main/java/nextstep/jwp/commandcontroller/ErrorPageController.java

@@ -0,0 +1,23 @@
+package nextstep.jwp.commandcontroller;
+
+import nextstep.jwp.common.ContentType;
+import nextstep.jwp.common.HttpStatus;
+import nextstep.jwp.request.HttpRequest;
+import nextstep.jwp.response.HttpResponse;
+import nextstep.jwp.response.StatusLine;
+
+public class ErrorPageController extends AbstractController {
+
+    @Override
+    public boolean canHandle(HttpRequest request) {
+        return super.canHandle(request);
+    }
+
+    @Override
+    public void service(HttpRequest request, HttpResponse response) throws Exception {
+        response.setStatusLine(StatusLine.of(request.getHttpVersion(), HttpStatus.NOT_FOUND));
+        response.addHeader("Content-Type", ContentType.HTML.getType());
+        final String content = readResponseBody("500.html");
+        response.setResponseBody(content);
+    }
+}

tomcat/src/main/java/nextstep/jwp/commandcontroller/LoginController.java

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+package nextstep.jwp.commandcontroller;
+
+import java.util.Arrays;
+import java.util.Map;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.stream.Collectors;
+import nextstep.jwp.common.HttpMethod;
+import nextstep.jwp.common.HttpStatus;
+import nextstep.jwp.db.InMemoryUserRepository;
+import nextstep.jwp.model.Session;
+import nextstep.jwp.model.User;
+import nextstep.jwp.request.HttpRequest;
+import nextstep.jwp.response.HttpResponse;
+import nextstep.jwp.response.StatusLine;
+import org.apache.catalina.SessionManager;
+
+public class LoginController extends AbstractController {
+
+    @Override
+    public boolean canHandle(HttpRequest request) {
+        final HttpMethod method = request.getHttpMethod();
+        final String uri = request.getRequestUri();
+        return method.equals(HttpMethod.POST) && uri.equals("login");
+    }
+
+    @Override
+    public void service(HttpRequest request, HttpResponse response) {
+        final Map<String, String> logInfo = Arrays.stream(request.getRequestBody().split("&"))
+                .map(input -> input.split("="))
+                .collect(Collectors.toMap(info -> info[0], info -> info[1]));
+
+        response.setStatusLine(StatusLine.of(request.getHttpVersion(), HttpStatus.FOUND));
+        final Optional<User> savedUser = InMemoryUserRepository.findByAccount(logInfo.get("account"));
+        if (savedUser.isPresent()) {
+            final User user = savedUser.get();
+            if (user.checkPassword(logInfo.get("password"))) {
+                response.addHeader("Location", "index.html");
+                final Session session = new Session(UUID.randomUUID().toString());
+                session.setAttribute("user", user);
+                SessionManager.add(session);
+                response.addCookie("JSESSIONID", session.getId());
+                return;
+            }
+        }
+        response.addHeader("Location", "401.html");
+    }
+}

tomcat/src/main/java/nextstep/jwp/commandcontroller/LoginPageController.java

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+package nextstep.jwp.commandcontroller;
+
+import nextstep.jwp.common.ContentType;
+import nextstep.jwp.common.HttpMethod;
+import nextstep.jwp.common.HttpStatus;
+import nextstep.jwp.model.Session;
+import nextstep.jwp.request.HttpRequest;
+import nextstep.jwp.response.HttpResponse;
+import nextstep.jwp.response.StatusLine;
+import org.apache.catalina.SessionManager;
+
+public class LoginPageController extends AbstractController {
+
+    @Override
+    public boolean canHandle(HttpRequest request) {
+        final HttpMethod method = request.getHttpMethod();
+        final String uri = request.getRequestUri();
+        return method.equals(HttpMethod.GET) && uri.equals("login");
+    }
+
+    @Override
+    public void service(HttpRequest request, HttpResponse response) throws Exception {
+        final String sessionId = request.getCookies().ofSessionId("JSESSIONID");
+        final Session session = SessionManager.findSession(sessionId);
+        if (session != null) {
+            response.setStatusLine(StatusLine.of(request.getHttpVersion(), HttpStatus.FOUND));
+            response.addHeader("Location", "index.html");
+            return;
+        }
+        response.setStatusLine(StatusLine.of(request.getHttpVersion(), HttpStatus.OK));
+        response.addHeader("Content-Type", ContentType.HTML.getType());
+        final String content = readResponseBody(request.getRequestUri() + ".html");
+        response.setResponseBody(content);
+    }
+}

tomcat/src/main/java/nextstep/jwp/commandcontroller/MainPageController.java

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+package nextstep.jwp.commandcontroller;
+
+import nextstep.jwp.common.ContentType;
+import nextstep.jwp.common.HttpMethod;
+import nextstep.jwp.common.HttpStatus;
+import nextstep.jwp.request.HttpRequest;
+import nextstep.jwp.response.HttpResponse;
+import nextstep.jwp.response.StatusLine;
+
+public class MainPageController extends AbstractController {
+
+    @Override
+    public boolean canHandle(HttpRequest request) {
+        final HttpMethod method = request.getHttpMethod();
+        final String uri = request.getRequestUri();
+        return method.equals(HttpMethod.GET) && uri.isEmpty();
+    }
+
+    @Override
+    public void service(HttpRequest request, HttpResponse response) {
+        response.setStatusLine(StatusLine.of(request.getHttpVersion(), HttpStatus.OK));
+        response.addHeader("Content-Type", ContentType.HTML.getType());
+        response.setResponseBody("Hello world!");
+    }
+}