From 1073af21305360bd33903c533cdac57e9f936294 Mon Sep 17 00:00:00 2001
From: Yuuta Liang <yuutaw@student.cs.ubc.ca>
Date: Tue, 28 Nov 2023 18:19:39 -0800
Subject: Move TUI and GUI into separate packages

Signed-off-by: Yuuta Liang <yuutaw@student.cs.ubc.ca>
---
 src/main/ui/MainScreen.java | 233 --------------------------------------------
 1 file changed, 233 deletions(-)
 delete mode 100644 src/main/ui/MainScreen.java

(limited to 'src/main/ui/MainScreen.java')

diff --git a/src/main/ui/MainScreen.java b/src/main/ui/MainScreen.java
deleted file mode 100644
index 8a85881..0000000
--- a/src/main/ui/MainScreen.java
+++ /dev/null
@@ -1,233 +0,0 @@
-package ui;
-
-import model.asn1.ASN1Object;
-import model.asn1.UtcTime;
-import model.asn1.exceptions.ParseException;
-import model.asn1.parsing.BytesReader;
-import model.ca.Template;
-import model.csr.CertificationRequest;
-import model.pki.cert.Certificate;
-import model.pki.crl.CertificateList;
-import model.pki.crl.Reason;
-import model.pki.crl.RevokedCertificate;
-
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.time.ZoneId;
-import java.time.ZonedDateTime;
-import java.util.Optional;
-
-/**
- * The main screen that handles submenus (mgmt / issue / template), list certs, revoke certs, generate CRLs.
- */
-public class MainScreen implements UIHandler {
-    private final JCA session;
-
-    /**
-     * EFFECTS: Init with the parent session.
-     */
-    public MainScreen(JCA session) {
-        this.session = session;
-    }
-
-    /**
-     * EFFECTS: Print help
-     */
-    @Override
-    public void help() {
-        System.out.print("mgmt\tView and manage the CA certificate\n"
-                + "issue\tIssue a certificate\n"
-                + "show\tList all issued certificates\n"
-                + "export\tExport a certificate to file (DER)\n"
-                + "template\tManage templates\n"
-                + "revoke\tRevoke a certificate\n"
-                + "crl\t\tSign CRL\n"
-                + "log\t\tView audit logs\n"
-                + "exit\tExit\n"
-                + "help\tPrint this message\n");
-    }
-
-    /**
-     * EFFECTS: Print each issued cert in Subject Serial Status format.
-     */
-    @Override
-    public void show() {
-        session.getCa().getSigned().forEach(cert -> {
-            System.out.printf("%s\t%d\t%s\n",
-                    cert.getCertificate().getSubject().toString(),
-                    cert.getCertificate().getSerialNumber().getLong(),
-                    session.getCa().getRevoked().stream().anyMatch(rev -> rev.getSerialNumber().getLong()
-                            == cert.getCertificate().getSerialNumber().getLong()) ? "REVOKED" : "OK");
-        });
-    }
-
-    /**
-     * EFFECTS: Read the input CSR.
-     */
-    private CertificationRequest handleIssueInputCSR() {
-        try {
-            return new CertificationRequest(new BytesReader(session.handleInputPEM("CERTIFICATE REQUEST")),
-                    false);
-        } catch (ParseException e) {
-            System.out.println(e.getMessage());
-            return null;
-        }
-    }
-
-    /**
-     * EFFECTS: Handle the issue command. Read CSR, find template, switch to issue screen.
-     */
-    private void handleIssue(String... args) {
-        if (!session.checkCA(true)) {
-            return;
-        }
-        if (args.length <= 1) {
-            System.out.println("Usage: issue <template>");
-            return;
-        }
-        Template tmp = session.getCa().findTemplate(args[1], true);
-        if (tmp == null) {
-            System.out.println("Cannot find the template specified");
-            return;
-        }
-        CertificationRequest req = handleIssueInputCSR();
-        if (req != null) {
-            session.setScreen(Screen.ISSUE, req, new Template(tmp.getName(),
-                    true,
-                    tmp.getSubject(),
-                    tmp.getValidity()));
-        }
-    }
-
-    /**
-     * EFFECTS: Find issued and not revoked certificate by serial. Return null if not found.
-     */
-    private Certificate findCertBySerial(int serial) {
-        Optional<Certificate> c = session.getCa().getSigned()
-                .stream()
-                .filter(cert -> cert.getCertificate().getSerialNumber().getLong() == serial)
-                .findFirst();
-        if (c.isEmpty()) {
-            System.out.println("Cannot find the certificate specified");
-            return null;
-        }
-        if (session.getCa().getRevoked().stream().anyMatch(rev -> rev.getSerialNumber().getLong() == serial)) {
-            System.out.println("The certificate has already been revoked.");
-            return null;
-        }
-        return c.get();
-    }
-
-    /**
-     * EFFECTS: Handle the revoke command and log it.
-     * MODIFIES: session
-     */
-    private void handleRevoke(String... args) {
-        if (args.length < 3) {
-            System.out.println("Usage: revoke <serial> <reason>");
-            return;
-        }
-        try {
-            final Reason reason = Reason.valueOf(args[2]);
-            int serial = Integer.parseInt(args[1]);
-            Certificate c = findCertBySerial(serial);
-            if (c == null) {
-                return;
-            }
-            session.getCa().revoke(new RevokedCertificate(ASN1Object.TAG_SEQUENCE, null,
-                    c.getCertificate().getSerialNumber(),
-                    new UtcTime(UtcTime.TAG, null, ZonedDateTime.now(ZoneId.of("UTC"))), reason));
-            session.save();
-        } catch (IllegalArgumentException ignored) {
-            System.out.println("Illegal serial number or reason");
-        }
-    }
-
-    /**
-     * EFFECTS: Export a cert to file
-     */
-    private void handleExport(String... args) {
-        if (args.length < 3) {
-            System.out.println("Usage: export <serial> <path>");
-            return;
-        }
-        try {
-            int serial = Integer.parseInt(args[1]);
-            Certificate c = findCertBySerial(serial);
-            if (c == null) {
-                return;
-            }
-            final File fd = new File(args[2]);
-            final OutputStream out = new FileOutputStream(fd);
-            out.write(Utils.byteToByte(c.encodeDER()));
-            out.close();
-        } catch (IllegalArgumentException ignored) {
-            System.out.println("Illegal serial number");
-        } catch (IOException e) {
-            System.out.println(e.getMessage());
-        }
-    }
-
-    /**
-     * EFFECTS: Issue a CRL and do audit log.
-     * MODIFIES: session
-     */
-    private void handleCRL() {
-        if (!session.checkCA(true)) {
-            return;
-        }
-        try {
-            CertificateList crl = session.getCa().signCRL();
-            session.save();
-            System.out.println(Utils.toPEM(crl.encodeDER(), "X509 CRL"));
-        } catch (Throwable e) {
-            System.out.println(e.getMessage());
-        }
-    }
-
-    /**
-     * EFFECTS: Handle commands
-     */
-    @Override
-    public void command(String... args) {
-        switch (args[0]) {
-            case "mgmt":
-                session.setScreen(Screen.MGMT);
-                return;
-            case "issue":
-                handleIssue(args);
-                return;
-            case "revoke":
-                handleRevoke(args);
-                return;
-            case "export":
-                handleExport(args);
-                return;
-            case "template":
-                session.setScreen(Screen.TEMPLATES);
-                return;
-            case "crl":
-                handleCRL();
-                return;
-        }
-        help();
-    }
-
-    /**
-     * EFFECTS: Exit the program
-     */
-    @Override
-    public Screen exit() {
-        return null;
-    }
-
-    /**
-     * EFFECTS: return "/ %"
-     */
-    @Override
-    public String getPS1() {
-        return "/ %";
-    }
-}
-- 
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