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2
license/.gitattributes vendored Normal file
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/mvnw text eol=lf
*.cmd text eol=crlf

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license/.gitignore vendored Normal file
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HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/

19
license/.mvn/wrapper/maven-wrapper.properties vendored Normal file
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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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
#
# http://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.
wrapperVersion=3.3.2
distributionType=only-script
distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip

259
license/mvnw vendored Executable file
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#!/bin/sh
# ----------------------------------------------------------------------------
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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
#
# http://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.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Apache Maven Wrapper startup batch script, version 3.3.2
#
# Optional ENV vars
# -----------------
# JAVA_HOME - location of a JDK home dir, required when download maven via java source
# MVNW_REPOURL - repo url base for downloading maven distribution
# MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
# MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
# ----------------------------------------------------------------------------
set -euf
[ "${MVNW_VERBOSE-}" != debug ] || set -x
# OS specific support.
native_path() { printf %s\\n "$1"; }
case "$(uname)" in
CYGWIN* | MINGW*)
[ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
native_path() { cygpath --path --windows "$1"; }
;;
esac
# set JAVACMD and JAVACCMD
set_java_home() {
# For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
if [ -n "${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"
JAVACCMD="$JAVA_HOME/jre/sh/javac"
else
JAVACMD="$JAVA_HOME/bin/java"
JAVACCMD="$JAVA_HOME/bin/javac"
if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
return 1
fi
fi
else
JAVACMD="$(
'set' +e
'unset' -f command 2>/dev/null
'command' -v java
)" || :
JAVACCMD="$(
'set' +e
'unset' -f command 2>/dev/null
'command' -v javac
)" || :
if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
return 1
fi
fi
}
# hash string like Java String::hashCode
hash_string() {
str="${1:-}" h=0
while [ -n "$str" ]; do
char="${str%"${str#?}"}"
h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
str="${str#?}"
done
printf %x\\n $h
}
verbose() { :; }
[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
die() {
printf %s\\n "$1" >&2
exit 1
}
trim() {
# MWRAPPER-139:
# Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
# Needed for removing poorly interpreted newline sequences when running in more
# exotic environments such as mingw bash on Windows.
printf "%s" "${1}" | tr -d '[:space:]'
}
# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
while IFS="=" read -r key value; do
case "${key-}" in
distributionUrl) distributionUrl=$(trim "${value-}") ;;
distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
esac
done <"${0%/*}/.mvn/wrapper/maven-wrapper.properties"
[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in ${0%/*}/.mvn/wrapper/maven-wrapper.properties"
case "${distributionUrl##*/}" in
maven-mvnd-*bin.*)
MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
*AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
:Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
:Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
:Linux*x86_64*) distributionPlatform=linux-amd64 ;;
*)
echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
distributionPlatform=linux-amd64
;;
esac
distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
;;
maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
*) MVN_CMD="mvn${0##*/mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
esac
# apply MVNW_REPOURL and calculate MAVEN_HOME
# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
distributionUrlName="${distributionUrl##*/}"
distributionUrlNameMain="${distributionUrlName%.*}"
distributionUrlNameMain="${distributionUrlNameMain%-bin}"
MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
exec_maven() {
unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
}
if [ -d "$MAVEN_HOME" ]; then
verbose "found existing MAVEN_HOME at $MAVEN_HOME"
exec_maven "$@"
fi
case "${distributionUrl-}" in
*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
esac
# prepare tmp dir
if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
trap clean HUP INT TERM EXIT
else
die "cannot create temp dir"
fi
mkdir -p -- "${MAVEN_HOME%/*}"
# Download and Install Apache Maven
verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
verbose "Downloading from: $distributionUrl"
verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
# select .zip or .tar.gz
if ! command -v unzip >/dev/null; then
distributionUrl="${distributionUrl%.zip}.tar.gz"
distributionUrlName="${distributionUrl##*/}"
fi
# verbose opt
__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
# normalize http auth
case "${MVNW_PASSWORD:+has-password}" in
'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
esac
if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
verbose "Found wget ... using wget"
wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
verbose "Found curl ... using curl"
curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
elif set_java_home; then
verbose "Falling back to use Java to download"
javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
cat >"$javaSource" <<-END
public class Downloader extends java.net.Authenticator
{
protected java.net.PasswordAuthentication getPasswordAuthentication()
{
return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
}
public static void main( String[] args ) throws Exception
{
setDefault( new Downloader() );
java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
}
}
END
# For Cygwin/MinGW, switch paths to Windows format before running javac and java
verbose " - Compiling Downloader.java ..."
"$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
verbose " - Running Downloader.java ..."
"$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
fi
# If specified, validate the SHA-256 sum of the Maven distribution zip file
if [ -n "${distributionSha256Sum-}" ]; then
distributionSha256Result=false
if [ "$MVN_CMD" = mvnd.sh ]; then
echo "Checksum validation is not supported for maven-mvnd." >&2
echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
exit 1
elif command -v sha256sum >/dev/null; then
if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c >/dev/null 2>&1; then
distributionSha256Result=true
fi
elif command -v shasum >/dev/null; then
if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
distributionSha256Result=true
fi
else
echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
exit 1
fi
if [ $distributionSha256Result = false ]; then
echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
exit 1
fi
fi
# unzip and move
if command -v unzip >/dev/null; then
unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
else
tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
fi
printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/mvnw.url"
mv -- "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
clean || :
exec_maven "$@"

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<# : batch portion
@REM ----------------------------------------------------------------------------
@REM Licensed to the Apache Software Foundation (ASF) under one
@REM or more contributor license agreements. See the NOTICE file
@REM distributed with this work for additional information
@REM regarding copyright ownership. The ASF licenses this file
@REM to you under the Apache License, Version 2.0 (the
@REM "License"); you may not use this file except in compliance
@REM with the License. You may obtain a copy of the License at
@REM
@REM http://www.apache.org/licenses/LICENSE-2.0
@REM
@REM Unless required by applicable law or agreed to in writing,
@REM software distributed under the License is distributed on an
@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@REM KIND, either express or implied. See the License for the
@REM specific language governing permissions and limitations
@REM under the License.
@REM ----------------------------------------------------------------------------
@REM ----------------------------------------------------------------------------
@REM Apache Maven Wrapper startup batch script, version 3.3.2
@REM
@REM Optional ENV vars
@REM MVNW_REPOURL - repo url base for downloading maven distribution
@REM MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
@REM MVNW_VERBOSE - true: enable verbose log; others: silence the output
@REM ----------------------------------------------------------------------------
@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
@SET __MVNW_CMD__=
@SET __MVNW_ERROR__=
@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
@SET PSModulePath=
@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
)
@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
@SET __MVNW_PSMODULEP_SAVE=
@SET __MVNW_ARG0_NAME__=
@SET MVNW_USERNAME=
@SET MVNW_PASSWORD=
@IF NOT "%__MVNW_CMD__%"=="" (%__MVNW_CMD__% %*)
@echo Cannot start maven from wrapper >&2 && exit /b 1
@GOTO :EOF
: end batch / begin powershell #>
$ErrorActionPreference = "Stop"
if ($env:MVNW_VERBOSE -eq "true") {
$VerbosePreference = "Continue"
}
# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
if (!$distributionUrl) {
Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
}
switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) {
"maven-mvnd-*" {
$USE_MVND = $true
$distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip"
$MVN_CMD = "mvnd.cmd"
break
}
default {
$USE_MVND = $false
$MVN_CMD = $script -replace '^mvnw','mvn'
break
}
}
# apply MVNW_REPOURL and calculate MAVEN_HOME
# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-<version>,maven-mvnd-<version>-<platform>}/<hash>
if ($env:MVNW_REPOURL) {
$MVNW_REPO_PATTERN = if ($USE_MVND) { "/org/apache/maven/" } else { "/maven/mvnd/" }
$distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace '^.*'+$MVNW_REPO_PATTERN,'')"
}
$distributionUrlName = $distributionUrl -replace '^.*/',''
$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$',''
$MAVEN_HOME_PARENT = "$HOME/.m2/wrapper/dists/$distributionUrlNameMain"
if ($env:MAVEN_USER_HOME) {
$MAVEN_HOME_PARENT = "$env:MAVEN_USER_HOME/wrapper/dists/$distributionUrlNameMain"
}
$MAVEN_HOME_NAME = ([System.Security.Cryptography.MD5]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
exit $?
}
if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
}
# prepare tmp dir
$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
trap {
if ($TMP_DOWNLOAD_DIR.Exists) {
try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
}
}
New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
# Download and Install Apache Maven
Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
Write-Verbose "Downloading from: $distributionUrl"
Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
$webclient = New-Object System.Net.WebClient
if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
$webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
}
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
# If specified, validate the SHA-256 sum of the Maven distribution zip file
$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum
if ($distributionSha256Sum) {
if ($USE_MVND) {
Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties."
}
Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash
if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) {
Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property."
}
}
# unzip and move
Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
Rename-Item -Path "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" -NewName $MAVEN_HOME_NAME | Out-Null
try {
Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
} catch {
if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
Write-Error "fail to move MAVEN_HOME"
}
} finally {
try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
}
Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"

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license/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.4.3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>license</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>license</name>
<description>Demo project for Spring Boot</description>
<url/>
<licenses>
<license/>
</licenses>
<developers>
<developer/>
</developers>
<scm>
<connection/>
<developerConnection/>
<tag/>
<url/>
</scm>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

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license/src/main/java/com/example/license/LicenseApplication.java Normal file
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package com.example.license;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class LicenseApplication {
public static void main(String[] args) {
SpringApplication.run(LicenseApplication.class, args);
}
}

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license/src/main/java/com/example/license/rest/LicenseRest.java Normal file
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package com.example.license.rest;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.example.license.utils.DeterministicHexSequenceWithTimestamp;
@RestController
@RequestMapping("/license")
public class LicenseRest {
private final String licenseDirectory;
public LicenseRest(@Value("${license-folder}") String licenseDirectory) {
this.licenseDirectory = licenseDirectory;
}
@PostMapping
public String check(@RequestBody String payload) throws IOException {
System.out.println(payload);
String[] split = payload.split("\\.");
File directory = new File(licenseDirectory);
//TODO: extract ID, encrypted message and signature
final var id = split[0];
final var encrypted = split[1];
final var signature = split[2];
System.out.println("Encrypted: " + encrypted);
System.out.println("Signature: " + signature);
if (directory.isDirectory()) {
String[] fileNames = directory.list();
if (fileNames != null) {
for (String fileName : fileNames) {
if (fileName.equals(id)) {
final var filePath = licenseDirectory + File.separator + fileName;
final var props = loadProperties(filePath);
//TODO: decrypt
//TODO: verify signature
//TODO: veryfy current index match, increment index using timestamp then send new index in response.
System.out.println("Props: " + props);
System.out.println(props.getProperty("index"));
if(!StringUtils.hasText(props.getProperty("index"))){
props.setProperty("index", "1A3F");
saveProperties(filePath, props);
} else {
props.setProperty("index", DeterministicHexSequenceWithTimestamp.nextValueString(props.getProperty("index"), 0));
}
}
}
}
} else {
System.out.println("Provided path is not a directory.");
}
return "OK";
}
private Properties loadProperties(String filePath) throws IOException {
try (FileInputStream fis = new FileInputStream(filePath)) {
final var properties = new Properties();
properties.load(fis);
return properties;
}
}
private void saveProperties(String filePath, Properties properties) throws IOException {
try (FileOutputStream fos = new FileOutputStream(filePath)) {
properties.store(fos, "Updated properties file");
}
}
}

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license/src/main/java/com/example/license/utils/DeterministicHexSequenceWithTimestamp.java Normal file
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package com.example.license.utils;
import java.math.BigInteger;
import java.time.Instant;
public class DeterministicHexSequenceWithTimestamp {
// Deterministic function f(x, t) incorporating timestamp using BigInteger
private static BigInteger f(BigInteger x,
long timestamp) {
x = x.xor(x.shiftLeft(5)); // XOR shift and addition
x = x.add(x.shiftRight(3)); // Addition
x = x.multiply(BigInteger.valueOf(2654435761L))
.and(BigInteger.valueOf(0xFFFFFFFFFFFFFFFFL)); // Multiply by
// golden ratio,
// keep within 64
// bits
x = x.xor(x.shiftRight(11))
.and(BigInteger.valueOf(0xFFFFFFFFFFFFFFFFL)); // More scrambling
// Mix timestamp into the transformation
BigInteger t_part = BigInteger.valueOf(timestamp)
.xor(BigInteger.valueOf(timestamp)
.shiftRight(32)); // Reduce
// to 64
// bits
x = x.add(t_part)
.xor(x.shiftLeft(7)
.or(t_part.shiftRight(3))); // More bit-mixing
return x.and(BigInteger.valueOf(0xFFFFFFFFFFFFFFFFL)); // Keep within
// 64-bit range
}
// Calculate the next value based on prev (hex string), f(prev, timestamp),
// and
// the fixed bit-length mask (hardcoded here)
public static BigInteger nextValue(String prevHex,
long timestamp) {
// Convert the prev hex string to BigInteger
BigInteger prev = new BigInteger(prevHex, 16);
// Mask for a fixed bit length (e.g., 64 bits)
BigInteger mask = BigInteger.valueOf(1)
.shiftLeft(64)
.subtract(BigInteger.ONE); // 64-bit mask
// Calculate next value using prev and timestamp, then apply mask
return prev.add(f(prev, timestamp))
.and(mask); // Calculate next and apply mask
}
public static String nextValueString(String prevHex,
long timestamp) {
BigInteger next = nextValue(prevHex, timestamp);
return next.toString(16)
.toUpperCase();
}
public static void generateSequence(String startHex,
int length,
long timestamp,
int fixedBitLength) {
String prevHex = startHex;
for (int i = 0; i < length; i++) {
// Use nextValue method to get the next value
BigInteger next = nextValue(prevHex, timestamp);
prevHex = next.toString(16)
.toUpperCase(); // Convert next value to hex string
// Print next value in BigInteger and its fixed-length hexadecimal
// representation
System.out.println("Next value (BigInteger): " + next);
System.out.println("Next value (Hex, fixed length): 0x" + prevHex);
}
}
public static void main(String[] args) {
// Initial seed value as a hex string
String startHex = "1A3F"; // Initial seed value in hex
int sequenceLength = 10; // Number of elements
long requestTimestamp = Instant.now()
.toEpochMilli() * 1_000_000; // Nanoseconds timestamp
int fixedBitLength = 64; // Fixed length of 64 bits for BigInteger and
// hex output
generateSequence(startHex, sequenceLength, requestTimestamp, fixedBitLength);
}
}

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license/src/main/java/com/example/license/utils/KeyUtils.java Normal file
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package com.example.license.utils;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.Signature;
import java.security.spec.ECGenParameterSpec;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import java.util.Base64;
import javax.crypto.Cipher;
import javax.crypto.KeyAgreement;
import javax.crypto.SecretKey;
import javax.crypto.spec.GCMParameterSpec;
import javax.crypto.spec.SecretKeySpec;
public final class KeyUtils {
public static void main(String[] args) throws Exception {
// Simulating two separate entities: Sender and Receiver
// 1. Receiver generates ECC key pair and shares the public key
KeyPair receiverKeyPair = generateECCKeyPair();
// 2. Sender generates its own ECC key pair
KeyPair senderKeyPair = generateECCKeyPair();
String receiverPublicKeyToString = publicKeyToString(receiverKeyPair.getPublic());
String receiverPrivateKeyToString = privateKeyToString(receiverKeyPair.getPrivate());
System.out.println("receiverKeyPair.getPublic() (Base64): " + receiverPublicKeyToString);
System.out.println("receiverKeyPair.getPrivate() (Base64): " + receiverPrivateKeyToString);
String senderPublicKeyToString = publicKeyToString(senderKeyPair.getPublic());
String senderPrivateKeyToString = privateKeyToString(senderKeyPair.getPrivate());
System.out.println("senderKeyPair.getPublic() (Base64): " + senderPublicKeyToString);
System.out.println("senderKeyPair.getPrivate() (Base64): " + senderPrivateKeyToString);
// 3. Exchange public keys (Simulated here, but in real-world, sender &
// receiver
// send them over network)
// Sender now has receiver's public key, and receiver has sender's
// public key
// 4. Both compute the shared secret using ECDH
SecretKey senderSharedSecret = generateSharedSecret(stringToPrivateKey(senderPrivateKeyToString),
stringToPublicKey(receiverPublicKeyToString));
// 5. Encrypt data (Sender side)
String originalMessage = "Hello, secure world!";
byte[] encryptedData = encryptDataWithAESGCM(originalMessage, senderSharedSecret);
// 6. Send encrypted data to receiver (Simulated here)
// Receiver now decrypts using the shared secret
SecretKey receiverSharedSecret = generateSharedSecret(stringToPrivateKey(receiverPrivateKeyToString),
stringToPublicKey(senderPublicKeyToString));
String decryptedMessage = decryptDataWithAESGCM(encryptedData, receiverSharedSecret);
// Print Results
System.out.println("Original Message: " + originalMessage);
System.out.println("Encrypted (Base64): " + Base64.getEncoder()
.encodeToString(encryptedData));
System.out.println("Decrypted Message: " + decryptedMessage);
String signature = signMessage(originalMessage, stringToPrivateKey(senderPrivateKeyToString));
System.out.println("Signature: " + signature);
// 3. Verify the signature
boolean isVerified = verifySignature(originalMessage, signature, stringToPublicKey(senderPublicKeyToString));
System.out.println("Signature Verified: " + isVerified);
}
// Generate ECC key pair
private static KeyPair generateECCKeyPair() throws Exception {
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("EC");
ECGenParameterSpec ecSpec = new ECGenParameterSpec("secp384r1");
keyPairGenerator.initialize(ecSpec);
return keyPairGenerator.generateKeyPair();
}
// Generate shared secret using ECDH
private static SecretKey generateSharedSecret(PrivateKey privateKey,
PublicKey publicKey) throws Exception {
KeyAgreement keyAgreement = KeyAgreement.getInstance("ECDH");
keyAgreement.init(privateKey);
keyAgreement.doPhase(publicKey, true);
byte[] sharedSecretBytes = keyAgreement.generateSecret();
return new SecretKeySpec(sharedSecretBytes, 0, 16, "AES");
}
// Encrypt data using AES-GCM
private static byte[] encryptDataWithAESGCM(String data,
SecretKey sharedSecret) throws Exception {
Cipher cipher = Cipher.getInstance("AES/GCM/NoPadding");
// Generate random 12-byte IV
SecureRandom random = new SecureRandom();
byte[] iv = new byte[12];
random.nextBytes(iv);
GCMParameterSpec spec = new GCMParameterSpec(128, iv);
cipher.init(Cipher.ENCRYPT_MODE, sharedSecret, spec);
byte[] encryptedData = cipher.doFinal(data.getBytes());
// Combine IV and encrypted data
byte[] encryptedDataWithIv = new byte[iv.length + encryptedData.length];
System.arraycopy(iv, 0, encryptedDataWithIv, 0, iv.length);
System.arraycopy(encryptedData, 0, encryptedDataWithIv, iv.length, encryptedData.length);
return encryptedDataWithIv;
}
// Decrypt data using AES-GCM
private static String decryptDataWithAESGCM(byte[] encryptedDataWithIv,
SecretKey sharedSecret) throws Exception {
Cipher cipher = Cipher.getInstance("AES/GCM/NoPadding");
// Extract IV
byte[] iv = new byte[12];
System.arraycopy(encryptedDataWithIv, 0, iv, 0, iv.length);
byte[] encryptedData = new byte[encryptedDataWithIv.length - iv.length];
System.arraycopy(encryptedDataWithIv, iv.length, encryptedData, 0, encryptedData.length);
// Decrypt
GCMParameterSpec spec = new GCMParameterSpec(128, iv);
cipher.init(Cipher.DECRYPT_MODE, sharedSecret, spec);
byte[] decryptedData = cipher.doFinal(encryptedData);
return new String(decryptedData);
}
private static String privateKeyToString(PrivateKey privateKey) {
return Base64.getEncoder()
.encodeToString(privateKey.getEncoded());
}
private static String publicKeyToString(PublicKey publicKey) {
return Base64.getEncoder()
.encodeToString(publicKey.getEncoded());
}
private static PrivateKey stringToPrivateKey(String privateKeyStr) throws Exception {
byte[] keyBytes = Base64.getDecoder()
.decode(privateKeyStr);
KeyFactory keyFactory = KeyFactory.getInstance("EC");
PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(keyBytes);
return keyFactory.generatePrivate(keySpec);
}
private static PublicKey stringToPublicKey(String publicKeyStr) throws Exception {
byte[] keyBytes = Base64.getDecoder()
.decode(publicKeyStr);
KeyFactory keyFactory = KeyFactory.getInstance("EC");
X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes);
return keyFactory.generatePublic(keySpec);
}
private static String signMessage(String message,
PrivateKey privateKey) throws Exception {
Signature signature = Signature.getInstance("SHA256withECDSA");
signature.initSign(privateKey);
signature.update(message.getBytes());
byte[] signedBytes = signature.sign();
return Base64.getEncoder()
.encodeToString(signedBytes);
}
// Verify the signature
private static boolean verifySignature(String message,
String signatureStr,
PublicKey publicKey) throws Exception {
Signature signature = Signature.getInstance("SHA256withECDSA");
signature.initVerify(publicKey);
signature.update(message.getBytes());
byte[] signatureBytes = Base64.getDecoder()
.decode(signatureStr);
return signature.verify(signatureBytes);
}
}

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spring.application.name=license
server.port=8443
server.ssl.key-store=classpath:server.jks
server.ssl.key-store-password=test
server.ssl.key-store-type=JKS
server.ssl.key-alias=torsim-license-server
license-folder=${user.home}/test/license/server

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license/src/test/java/com/example/license/LicenseApplicationTests.java Normal file
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package com.example.license;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class LicenseApplicationTests {
@Test
void contextLoads() {
}
}