diff --git a/blog/jwt/.gitignore b/blog/jwt/.gitignore new file mode 100644 index 00000000..c2065bc2 --- /dev/null +++ b/blog/jwt/.gitignore @@ -0,0 +1,37 @@ +HELP.md +.gradle +build/ +!gradle/wrapper/gradle-wrapper.jar +!**/src/main/**/build/ +!**/src/test/**/build/ + +### STS ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache +bin/ +!**/src/main/**/bin/ +!**/src/test/**/bin/ + +### IntelliJ IDEA ### +.idea +*.iws +*.iml +*.ipr +out/ +!**/src/main/**/out/ +!**/src/test/**/out/ + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ + +### VS Code ### +.vscode/ diff --git a/blog/jwt/build.gradle b/blog/jwt/build.gradle new file mode 100644 index 00000000..473808cb --- /dev/null +++ b/blog/jwt/build.gradle @@ -0,0 +1,30 @@ +plugins { + id 'org.springframework.boot' version '2.5.5' + id 'io.spring.dependency-management' version '1.0.11.RELEASE' + id 'java' +} + +group = 'com.example' +version = '0.0.1-SNAPSHOT' +sourceCompatibility = '1.8' + +repositories { + mavenCentral() +} + +dependencies { + implementation 'org.springframework.boot:spring-boot-starter-web' + implementation 'com.auth0:java-jwt:3.18.2' + + compileOnly 'org.projectlombok:lombok:1.18.20' + annotationProcessor 'org.projectlombok:lombok:1.18.20' + + testCompileOnly 'org.projectlombok:lombok:1.18.20' + testAnnotationProcessor 'org.projectlombok:lombok:1.18.20' + + testImplementation 'org.springframework.boot:spring-boot-starter-test' +} + +test { + useJUnitPlatform() +} diff --git a/blog/jwt/gradle/wrapper/gradle-wrapper.jar b/blog/jwt/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 00000000..7454180f Binary files /dev/null and b/blog/jwt/gradle/wrapper/gradle-wrapper.jar differ diff --git a/blog/jwt/gradle/wrapper/gradle-wrapper.properties b/blog/jwt/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 00000000..ffed3a25 --- /dev/null +++ b/blog/jwt/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,5 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/blog/jwt/gradlew b/blog/jwt/gradlew new file mode 100755 index 00000000..1b6c7873 --- /dev/null +++ b/blog/jwt/gradlew @@ -0,0 +1,234 @@ +#!/bin/sh + +# +# Copyright © 2015-2021 the original authors. +# +# 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. +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit + +APP_NAME="Gradle" +APP_BASE_NAME=${0##*/} + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD=$JAVA_HOME/jre/sh/java + else + JAVACMD=$JAVA_HOME/bin/java + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + +# Collect all arguments for the java command; +# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of +# shell script including quotes and variable substitutions, so put them in +# double quotes to make sure that they get re-expanded; and +# * put everything else in single quotes, so that it's not re-expanded. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -classpath "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/blog/jwt/gradlew.bat b/blog/jwt/gradlew.bat new file mode 100644 index 00000000..ac1b06f9 --- /dev/null +++ b/blog/jwt/gradlew.bat @@ -0,0 +1,89 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem + +@if "%DEBUG%" == "" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%" == "" set DIRNAME=. +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if "%ERRORLEVEL%" == "0" goto execute + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto execute + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* + +:end +@rem End local scope for the variables with windows NT shell +if "%ERRORLEVEL%"=="0" goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 +exit /b 1 + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/blog/jwt/settings.gradle b/blog/jwt/settings.gradle new file mode 100644 index 00000000..77261f60 --- /dev/null +++ b/blog/jwt/settings.gradle @@ -0,0 +1 @@ +rootProject.name = 'jwt' diff --git a/blog/jwt/src/main/java/com/example/jwt/JwtApplication.java b/blog/jwt/src/main/java/com/example/jwt/JwtApplication.java new file mode 100644 index 00000000..e981b840 --- /dev/null +++ b/blog/jwt/src/main/java/com/example/jwt/JwtApplication.java @@ -0,0 +1,15 @@ +package com.example.jwt; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; +import org.springframework.boot.web.servlet.ServletComponentScan; + +@SpringBootApplication +@ServletComponentScan(basePackages = {"com.example.jwt.filter"}) +public class JwtApplication { + + public static void main(String[] args) { + SpringApplication.run(JwtApplication.class, args); + } + +} diff --git a/blog/jwt/src/main/java/com/example/jwt/controller/TestController.java b/blog/jwt/src/main/java/com/example/jwt/controller/TestController.java new file mode 100644 index 00000000..1af714b9 --- /dev/null +++ b/blog/jwt/src/main/java/com/example/jwt/controller/TestController.java @@ -0,0 +1,30 @@ +package com.example.jwt.controller; + +import com.example.jwt.entity.LoginReq; +import com.example.jwt.repository.TestRepository; +import com.example.jwt.utils.JwtUtils; +import lombok.RequiredArgsConstructor; +import org.springframework.http.HttpStatus; +import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.GetMapping; +import org.springframework.web.bind.annotation.PostMapping; +import org.springframework.web.bind.annotation.RestController; + +@RestController +@RequiredArgsConstructor +public class TestController { + + private final TestRepository testRepository; + + @PostMapping("/login") + public ResponseEntity login(LoginReq loginReq) { + return testRepository.login(loginReq) ? + ResponseEntity.status(HttpStatus.OK).header("token", JwtUtils.generateToken(loginReq.getUsername())).body("success") : + ResponseEntity.status(HttpStatus.BAD_REQUEST).body("fail"); + } + + @GetMapping("/hello") + public String hello() { + return "hello"; + } +} diff --git a/blog/jwt/src/main/java/com/example/jwt/entity/LoginReq.java b/blog/jwt/src/main/java/com/example/jwt/entity/LoginReq.java new file mode 100644 index 00000000..130878d7 --- /dev/null +++ b/blog/jwt/src/main/java/com/example/jwt/entity/LoginReq.java @@ -0,0 +1,10 @@ +package com.example.jwt.entity; + +import lombok.Data; + +@Data +public class LoginReq { + + private String username; + private String password; +} diff --git a/blog/jwt/src/main/java/com/example/jwt/entity/Member.java b/blog/jwt/src/main/java/com/example/jwt/entity/Member.java new file mode 100644 index 00000000..863690cc --- /dev/null +++ b/blog/jwt/src/main/java/com/example/jwt/entity/Member.java @@ -0,0 +1,15 @@ +package com.example.jwt.entity; + +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.NoArgsConstructor; + +@Data +@NoArgsConstructor +@AllArgsConstructor +public class Member { + + private int id; + private String username; + private String password; +} diff --git a/blog/jwt/src/main/java/com/example/jwt/filter/LoginFilter.java b/blog/jwt/src/main/java/com/example/jwt/filter/LoginFilter.java new file mode 100644 index 00000000..bcd0ee21 --- /dev/null +++ b/blog/jwt/src/main/java/com/example/jwt/filter/LoginFilter.java @@ -0,0 +1,41 @@ +package com.example.jwt.filter; + +import com.example.jwt.utils.JwtUtils; + +import javax.servlet.*; +import javax.servlet.annotation.WebFilter; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import java.io.IOException; +import java.util.Arrays; + +@WebFilter("/*") +public class LoginFilter implements Filter { + @Override + public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { + HttpServletRequest httpServletRequest = (HttpServletRequest) request; + HttpServletResponse httpServletResponse = (HttpServletResponse) response; + + String[] excludeUri = { + "/login" + }; + + String requestURI = httpServletRequest.getRequestURI(); + + if (Arrays.asList(excludeUri).contains(requestURI)) { + chain.doFilter(httpServletRequest, httpServletResponse); + } else { + try { + String authorization = httpServletRequest.getHeader("Authorization"); + String token = authorization.replace("Bearer ", ""); + if (JwtUtils.verifyToken(token)) { + chain.doFilter(httpServletRequest, httpServletResponse); + } else { + httpServletResponse.getWriter().println("Unauthorized"); + } + } catch (Exception e) { + httpServletResponse.getWriter().println("Unauthorized"); + } + } + } +} diff --git a/blog/jwt/src/main/java/com/example/jwt/repository/TestRepository.java b/blog/jwt/src/main/java/com/example/jwt/repository/TestRepository.java new file mode 100644 index 00000000..c2ec818e --- /dev/null +++ b/blog/jwt/src/main/java/com/example/jwt/repository/TestRepository.java @@ -0,0 +1,24 @@ +package com.example.jwt.repository; + +import com.example.jwt.entity.LoginReq; +import com.example.jwt.entity.Member; +import org.springframework.stereotype.Repository; + +import java.util.ArrayList; +import java.util.List; + +@Repository +public class TestRepository { + + private final List members = new ArrayList<>(); + private static int sequence = 0; + + public TestRepository() { + members.add(new Member(++sequence, "kim", "1234")); + } + + public boolean login(LoginReq req) { + return members.stream() + .anyMatch(m -> m.getUsername().equals(req.getUsername()) && m.getPassword().equals(req.getPassword())); + } +} diff --git a/blog/jwt/src/main/java/com/example/jwt/utils/JwtUtils.java b/blog/jwt/src/main/java/com/example/jwt/utils/JwtUtils.java new file mode 100644 index 00000000..5301cbc5 --- /dev/null +++ b/blog/jwt/src/main/java/com/example/jwt/utils/JwtUtils.java @@ -0,0 +1,51 @@ +package com.example.jwt.utils; + +import com.auth0.jwt.JWT; +import com.auth0.jwt.algorithms.Algorithm; +import com.auth0.jwt.interfaces.DecodedJWT; + +import java.security.KeyPair; +import java.security.KeyPairGenerator; +import java.security.spec.ECGenParameterSpec; +import java.time.LocalDateTime; +import java.time.ZoneId; +import java.util.Date; + +public class JwtUtils { + + private JwtUtils() {} + + public static KeyPair generateES256Keypair() { + try { + KeyPairGenerator generator = KeyPairGenerator.getInstance("EC"); + generator.initialize(new ECGenParameterSpec("secp256r1")); + return generator.generateKeyPair(); + } catch (Exception e) { + e.printStackTrace(); + } + return null; + } + + public static String generateToken(String username) { + Algorithm algorithm = Algorithm.HMAC256("secret"); + return JWT.create() + .withIssuer("k") + .withIssuedAt(Date.from(LocalDateTime.now().atZone(ZoneId.systemDefault()).toInstant())) + .withExpiresAt(Date.from(LocalDateTime.now().plusDays(1L).atZone(ZoneId.systemDefault()).toInstant())) + .withClaim("username", username) + .sign(algorithm); + } + + public static boolean verifyToken(String token) { + Algorithm algorithm = Algorithm.HMAC256("secret"); + try { + DecodedJWT verify = JWT.require(algorithm) + .build().verify(token); + return true; + } catch (Exception e) { + e.printStackTrace(); + return false; + } + } + +} diff --git a/blog/jwt/src/main/resources/application.properties b/blog/jwt/src/main/resources/application.properties new file mode 100644 index 00000000..8b137891 --- /dev/null +++ b/blog/jwt/src/main/resources/application.properties @@ -0,0 +1 @@ + diff --git a/blog/jwt/src/test/java/com/example/jwt/JwtApplicationTests.java b/blog/jwt/src/test/java/com/example/jwt/JwtApplicationTests.java new file mode 100644 index 00000000..bb9d72f1 --- /dev/null +++ b/blog/jwt/src/test/java/com/example/jwt/JwtApplicationTests.java @@ -0,0 +1,13 @@ +package com.example.jwt; + +import org.junit.jupiter.api.Test; +import org.springframework.boot.test.context.SpringBootTest; + +@SpringBootTest +class JwtApplicationTests { + + @Test + void contextLoads() { + } + +} diff --git a/blog/jwt/src/test/java/com/example/jwt/utils/JwtUtilsTest.java b/blog/jwt/src/test/java/com/example/jwt/utils/JwtUtilsTest.java new file mode 100644 index 00000000..659dbbdf --- /dev/null +++ b/blog/jwt/src/test/java/com/example/jwt/utils/JwtUtilsTest.java @@ -0,0 +1,124 @@ +package com.example.jwt.utils; + +import com.auth0.jwt.JWT; +import com.auth0.jwt.algorithms.Algorithm; +import com.auth0.jwt.interfaces.DecodedJWT; +import org.apache.tomcat.util.codec.binary.Base64; +import org.assertj.core.api.Assertions; +import org.junit.jupiter.api.DisplayName; +import org.junit.jupiter.api.Test; + +import java.nio.charset.StandardCharsets; +import java.security.KeyPair; +import java.security.interfaces.ECPrivateKey; +import java.security.interfaces.ECPublicKey; +import java.time.LocalDateTime; +import java.time.ZoneId; +import java.util.Date; + +class JwtUtilsTest { + + @Test + @DisplayName("Generate keypair") + void generate_keypair() { + KeyPair keyPair = JwtUtils.generateES256Keypair(); + + assert keyPair != null; + System.out.println("keyPair.getPublic() = " + Base64.encodeBase64URLSafeString(keyPair.getPublic().getEncoded())); + System.out.println("keyPair.getPrivate() = " + Base64.encodeBase64URLSafeString(keyPair.getPrivate().getEncoded())); + } + + @Test + @DisplayName("Generate token ES256") + void generate_token_ES256() { + KeyPair keyPair = JwtUtils.generateES256Keypair(); + + assert keyPair != null; + Algorithm algorithm = Algorithm.ECDSA256((ECPublicKey) keyPair.getPublic(), (ECPrivateKey) keyPair.getPrivate()); + String token = JWT.create() + .withIssuer("k") + .withIssuedAt(Date.from(LocalDateTime.now().atZone(ZoneId.systemDefault()).toInstant())) + .withExpiresAt(Date.from(LocalDateTime.now().plusDays(1L).atZone(ZoneId.systemDefault()).toInstant())) + .withClaim("username", "kim") + .sign(algorithm); + + DecodedJWT decode = JWT.decode(token); + + String header = new String(Base64.decodeBase64(decode.getHeader()), StandardCharsets.UTF_8); + String payload = new String(Base64.decodeBase64(decode.getPayload()), StandardCharsets.UTF_8); + + System.out.println("header = " + header); + System.out.println("payload = " + payload); + + System.out.println("token = " + token); + } + + @Test + @DisplayName("Verify token ES256") + void verify_token_ES256() { + KeyPair keyPair = JwtUtils.generateES256Keypair(); + + assert keyPair != null; + Algorithm algorithm = Algorithm.ECDSA256((ECPublicKey) keyPair.getPublic(), (ECPrivateKey) keyPair.getPrivate()); + String token = JWT.create() + .withIssuer("k") + .withIssuedAt(Date.from(LocalDateTime.now().atZone(ZoneId.systemDefault()).toInstant())) + .withExpiresAt(Date.from(LocalDateTime.now().plusDays(1L).atZone(ZoneId.systemDefault()).toInstant())) + .withClaim("username", "kim") + .sign(algorithm); + + DecodedJWT decodeToken = JWT.decode(token); + + DecodedJWT verify = JWT.require(algorithm) + .withIssuer("k") + .withClaim("username", "kim") + .build().verify(token); + String payload = new String(Base64.decodeBase64(verify.getPayload()), StandardCharsets.UTF_8); + String decode = new String(Base64.decodeBase64(decodeToken.getPayload()), StandardCharsets.UTF_8); + + Assertions.assertThat(payload).isEqualTo(decode); + } + + @Test + @DisplayName("Generate token HS256") + void generate_token_HS256() { + Algorithm algorithm = Algorithm.HMAC256("secret"); + String token = JWT.create() + .withIssuer("k") + .withIssuedAt(Date.from(LocalDateTime.now().atZone(ZoneId.systemDefault()).toInstant())) + .withExpiresAt(Date.from(LocalDateTime.now().plusDays(1L).atZone(ZoneId.systemDefault()).toInstant())) + .withClaim("username", "kim") + .sign(algorithm); + + DecodedJWT decode = JWT.decode(token); + + String header = new String(Base64.decodeBase64(decode.getHeader()), StandardCharsets.UTF_8); + String payload = new String(Base64.decodeBase64(decode.getPayload()), StandardCharsets.UTF_8); + + System.out.println("header = " + header); + System.out.println("payload = " + payload); + + System.out.println("token = " + token); + } + + @Test + @DisplayName("Verify token HS256") + void verify_token_HS256() { + Algorithm algorithm = Algorithm.HMAC256("secret"); + String token = JWT.create() + .withIssuer("k") + .withIssuedAt(Date.from(LocalDateTime.now().atZone(ZoneId.systemDefault()).toInstant())) + .withExpiresAt(Date.from(LocalDateTime.now().plusDays(1L).atZone(ZoneId.systemDefault()).toInstant())) + .withClaim("username", "kim") + .sign(algorithm); + + DecodedJWT decodeToken = JWT.decode(token); + + DecodedJWT verify = JWT.require(algorithm) + .build().verify(token); + String payload = new String(Base64.decodeBase64(verify.getPayload()), StandardCharsets.UTF_8); + String decode = new String(Base64.decodeBase64(decodeToken.getPayload()), StandardCharsets.UTF_8); + + Assertions.assertThat(payload).isEqualTo(decode); + } +} \ No newline at end of file