Removed .vscode directory.

.gitignore

@@ -1 +0,0 @@
-environment-variables.txt

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "Backend/Skycrate"]
+	path = Backend/Skycrate
+	url = https://git.kska.io/notkshitij/SkycrateBackend.git

Backend/myserver/.gitattributes

@@ -0,0 +1,2 @@
+/mvnw text eol=lf
+*.cmd text eol=crlf

Backend/myserver/.gitignore

@@ -0,0 +1,33 @@
+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/

Backend/myserver/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,19 @@
+# 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

Backend/myserver/Loginandregister.md

@@ -0,0 +1,55 @@
+# API Testing Instructions (Postman)
+
+## Signup
+
+**Endpoint:**
+```
+POST http://localhost:8081/api/signup
+```
+
+**Request Body (JSON):**
+```json
+{
+    "firstname": "L",
+    "lastname": "H10",
+    "email": "exmaple@gmail.com",
+    "password": "your_password_here"
+}
+```
+
+**Expected Response:**
+```json
+{
+    "id": 2,
+    "username": "exmaple@gmail.com",
+    "password": "hashed_password_here",
+    "createdAt": "your_creation_date_here",
+    "enabled": true,
+    "authorities": [],
+    "credentialsNonExpired": true,
+    "accountNonExpired": true,
+    "accountNonLocked": true
+}
+```
+
+---
+
+## Login
+
+**Endpoint:**
+```
+POST http://localhost:8081/api/login
+```
+
+**Expected Response:**
+```json
+{
+    "token": "your_token_here",
+    "expiresIn": 3600000
+}
+```
+
+### Notes:
+- Ensure the server is running before making requests.
+- Use Postman to send POST requests with the specified JSON body.
+- The token received in the login response can be used for authenticated requests.

Backend/myserver/mvnw

@@ -0,0 +1,259 @@
+#!/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 "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"

Backend/myserver/mvnw.cmd

@@ -0,0 +1,149 @@
+<# : 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"

Backend/myserver/pom.xml

@@ -0,0 +1,96 @@
+<?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>myserver</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>myserver</name>
+	<description>CC mini project</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-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-security</artifactId>
+		</dependency>
+		<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>com.mysql</groupId>
+			<artifactId>mysql-connector-j</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.security</groupId>
+			<artifactId>spring-security-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-api</artifactId>
+            <version>0.11.5</version>
+        </dependency>
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-impl</artifactId>
+            <version>0.11.5</version>
+        </dependency>
+        <dependency>
+            <groupId>io.jsonwebtoken</groupId>
+            <artifactId>jjwt-jackson</artifactId>
+            <version>0.11.5</version>
+      </dependency>
+
+	</dependencies>
+	
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

Backend/myserver/src/main/java/com/example/myserver/MyserverApplication.java

@@ -0,0 +1,14 @@
+package com.example.myserver;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration;
+
+@SpringBootApplication
+public class MyserverApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(MyserverApplication.class, args);
+	}
+
+}

Backend/myserver/src/main/java/com/example/myserver/configs/ApplicationConfiguration.java

@@ -0,0 +1,47 @@
+package com.example.myserver.configs;
+
+import java.security.AuthProvider;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.authentication.AuthenticationProvider;
+import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
+import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.security.crypto.bcrypt.BCrypt;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+
+import com.example.myserver.repositories.UserRepository;
+
+@Configuration
+public class ApplicationConfiguration {
+    private final UserRepository userRepository;
+    public ApplicationConfiguration(UserRepository userRepository){
+        this.userRepository=userRepository;
+
+    }  
+    @Bean
+     UserDetailsService userDetailsService() {
+        return username -> userRepository.findByEmail(username)
+                .orElseThrow(() -> new UsernameNotFoundException("User not found"));
+    }
+    @Bean
+    BCryptPasswordEncoder passwordEncoder(){
+        return new BCryptPasswordEncoder();
+    }
+
+    @Bean
+    public AuthenticationManager authenticationManager(AuthenticationConfiguration config) throws Exception{
+        return config.getAuthenticationManager();
+    }
+
+    @Bean
+    AuthenticationProvider authenticationProvider(){
+        DaoAuthenticationProvider authprovider=new DaoAuthenticationProvider();
+        authprovider.setUserDetailsService(userDetailsService());
+        authprovider.setPasswordEncoder(passwordEncoder());
+        return authprovider;
+    }
+}

Backend/myserver/src/main/java/com/example/myserver/configs/JwtAuthenticationFilter.java

@@ -0,0 +1,77 @@
+package com.example.myserver.configs;
+
+import java.io.IOException;
+
+import org.springframework.lang.NonNull;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
+import org.springframework.stereotype.Component;
+import org.springframework.web.filter.OncePerRequestFilter;
+import org.springframework.web.servlet.HandlerExceptionResolver;
+
+import com.example.myserver.services.JwtService;
+
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+
+@Component
+public class JwtAuthenticationFilter extends OncePerRequestFilter {
+    
+
+        private final HandlerExceptionResolver handlerExceptionResolver;
+        private JwtService jwtService;
+        private UserDetailsService userDetailsService;
+
+        public JwtAuthenticationFilter(JwtService jwtService,UserDetailsService userDetailsService,HandlerExceptionResolver handlerExceptionResolver){
+
+            this.handlerExceptionResolver=handlerExceptionResolver;
+            this.jwtService=jwtService;
+            this.userDetailsService=userDetailsService;
+        }
+
+        @Override
+
+    protected void doFilterInternal(
+        @NonNull HttpServletRequest request,
+        @NonNull HttpServletResponse response,
+        @NonNull FilterChain filterChain) throws ServletException, IOException {
+        final String authHeader=request.getHeader("Authorization");
+        if (authHeader==null || !authHeader.startsWith("Bearer")){
+            filterChain.doFilter(request, response);
+            return;
+        }
+        try {
+            final String userjwt=authHeader.substring(7);
+            final String userEmail=jwtService.extractUsername(userjwt);
+            Authentication authentication=SecurityContextHolder.getContext().getAuthentication();
+            if(userEmail!=null && authentication==null){
+
+                UserDetails userDetails=this.userDetailsService.loadUserByUsername(userEmail);
+                if (jwtService.isTokenValid(userjwt, userDetails)) {
+                    
+                    UsernamePasswordAuthenticationToken authenticationToken=new UsernamePasswordAuthenticationToken(
+                        userDetails, null, userDetails.getAuthorities()
+                        );
+                    authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
+                    SecurityContextHolder.getContext().setAuthentication(authenticationToken);
+
+
+                }
+
+            }
+            filterChain.doFilter(request, response);
+            } 
+        catch (Exception err) {
+            handlerExceptionResolver.resolveException(request, response, null, err);
+        }
+
+        }
+
+
+}

Backend/myserver/src/main/java/com/example/myserver/configs/SecurityConfiguration.java

@@ -0,0 +1,63 @@
+package com.example.myserver.configs;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.authentication.AuthenticationProvider;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.http.SessionCreationPolicy;
+import org.springframework.security.web.SecurityFilterChain;
+import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
+import org.springframework.web.cors.CorsConfiguration;
+import org.springframework.web.cors.CorsConfigurationSource;
+import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
+
+import java.util.List;
+
+@Configuration
+@EnableWebSecurity
+public class SecurityConfiguration {
+    private final AuthenticationProvider authenticationProvider;
+    private final JwtAuthenticationFilter jwtAuthenticationFilter;
+
+    public SecurityConfiguration(
+        JwtAuthenticationFilter jwtAuthenticationFilter,
+        AuthenticationProvider authenticationProvider
+    ) {
+        this.authenticationProvider = authenticationProvider;
+        this.jwtAuthenticationFilter = jwtAuthenticationFilter;
+    }
+
+    @Bean
+    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
+        http.csrf()
+                .disable()
+                .authorizeHttpRequests()
+                .requestMatchers("/api/**")
+                .permitAll()
+                .anyRequest()
+                .authenticated()
+                .and()
+                .sessionManagement()
+                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
+                .and()
+                .authenticationProvider(authenticationProvider)
+                .addFilterBefore(jwtAuthenticationFilter, UsernamePasswordAuthenticationFilter.class);
+
+        return http.build();
+    }
+
+    @Bean
+    CorsConfigurationSource corsConfigurationSource() {
+        CorsConfiguration configuration = new CorsConfiguration();
+
+        configuration.setAllowedOrigins(List.of("*"));
+        configuration.setAllowedMethods(List.of("GET","PUT","DELETE","POST"));
+        configuration.setAllowedHeaders(List.of("Authorization","Content-Type"));
+
+        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
+
+        source.registerCorsConfiguration("/**",configuration);
+
+        return source;
+    }
+}

Backend/myserver/src/main/java/com/example/myserver/controllers/AuthController.java

@@ -0,0 +1,58 @@
+package com.example.myserver.controllers;
+
+import org.springframework.web.bind.annotation.RestController;
+
+import com.example.myserver.dtos.LoginUserDto;
+import com.example.myserver.dtos.RegisterUserDto;
+import com.example.myserver.models.User;
+import com.example.myserver.responses.LoginResponse;
+import com.example.myserver.services.AuthenticationService;
+import com.example.myserver.services.JwtService;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+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.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+
+@RequestMapping("/api")
+@RestController
+public class AuthController {
+   
+    private final JwtService jwtService;
+    private AuthenticationService authenticationService;
+
+    public AuthController(JwtService jwtService,AuthenticationService authenticationService){
+        this.jwtService=jwtService;
+        this.authenticationService=authenticationService;
+    }
+
+    @GetMapping("/test")
+    public String teString(@RequestParam String param) {
+        return new String();
+    }
+    
+    @PostMapping("/login")
+    public ResponseEntity<LoginResponse> LoginController(@RequestBody LoginUserDto entity) {
+
+        User authenticatedUser=authenticationService.authenticate(entity);
+        String jwtToken=jwtService.generateToken(authenticatedUser);
+        
+        LoginResponse loginResponse=new LoginResponse().setToken(jwtToken).setExpiresIn(jwtService.getExpirtationTime());
+        return ResponseEntity.ok(loginResponse);
+    }
+    
+    @PostMapping("/signup")
+    public ResponseEntity<User> register(@RequestBody RegisterUserDto entity) {
+        User registeredUser=authenticationService.signUp(entity);
+
+        
+        return ResponseEntity.ok(registeredUser);
+    }
+    
+
+    
+}

Backend/myserver/src/main/java/com/example/myserver/dtos/LoginUserDto.java

@@ -0,0 +1,25 @@
+package com.example.myserver.dtos;
+
+
+public class LoginUserDto {
+        private String email;
+        private String password;
+    
+        public String getEmail() {
+            return email;
+        }
+    
+        public void setEmail(String email) {
+            this.email = email;
+        }
+    
+        public String getPassword() {
+            return password;
+        }
+    
+        public void setPassword(String password) {
+            this.password = password;
+        }
+    }
+    
+

Backend/myserver/src/main/java/com/example/myserver/dtos/RegisterUserDto.java

@@ -0,0 +1,46 @@
+package com.example.myserver.dtos;
+
+public class RegisterUserDto {
+ 
+    private String email;
+    private String password;
+    private String firstname;
+    private String lastname;
+
+    public String getEmail() {
+        return email;
+    }
+
+    public RegisterUserDto setEmail(String email) {
+        this.email = email;
+        return this;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public RegisterUserDto setPassword(String password) {
+        this.password = password;
+        return this;
+
+    }
+
+    public String getFirstname() {
+        return firstname;
+    }
+
+    public RegisterUserDto setFirstname(String firstname) {
+        this.firstname = firstname;
+        return this;
+    }
+
+    public String getLastname() {
+        return lastname;
+    }
+
+    public RegisterUserDto setLastname(String lastname) {
+        this.lastname = lastname;
+        return this;
+    }
+}

Backend/myserver/src/main/java/com/example/myserver/models/User.java

@@ -0,0 +1,128 @@
+package com.example.myserver.models;
+import java.time.LocalDateTime;
+import java.util.Collection;
+import java.util.Date;
+import java.util.List;
+
+import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.UpdateTimestamp;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.userdetails.UserDetails;
+
+import jakarta.persistence.*;
+
+@Table(name = "users")
+@Entity
+public class User implements UserDetails {
+    
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(nullable = false)
+    private Integer id;
+
+    @Column(nullable = false)
+    private String username;
+
+    /*
+    
+   //Optional feature might add later
+
+    @Column(name = "verification_code")
+    private String verificationCode;
+
+    @Column(name ="verification_expiry")
+    private LocalDateTime verificationExpiry;
+
+    */
+
+    @Column(unique = true, nullable = false)
+    private String email;
+
+    @Column(nullable = false)
+    private String password;
+
+    
+    
+    public User(){
+    }
+
+    public User(String firstname,String lastname,String email,String password){
+        this.username=firstname+lastname;
+        this.email=email;
+        this.password=password;
+    }
+
+
+    @CreationTimestamp
+    @Column(updatable = false, name = "created_at")
+    private Date createdAt;
+
+    
+
+    @Override
+    public Collection<? extends GrantedAuthority> getAuthorities(){
+        return List.of();
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    @Override
+    public String getUsername() {
+        return email;
+    }
+
+    @Override
+    public boolean isAccountNonExpired() {
+        return true;
+    }
+
+    @Override
+    public boolean isAccountNonLocked() {
+        return true;
+    }
+
+    @Override
+    public boolean isCredentialsNonExpired() {
+        return true;
+    }
+
+    @Override
+    public boolean isEnabled() {
+        return true;
+    }
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    
+
+    public void setFullname(String firstname,String lastname) {
+        this.username=firstname+lastname;
+    }
+
+    public String getFullname(String firstname,String lastname){
+        return this.username;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public Date getCreatedAt() {
+        return createdAt;
+    }
+
+    public void setCreatedAt(Date createdAt) {
+        this.createdAt = createdAt;
+    }
+}

Backend/myserver/src/main/java/com/example/myserver/repositories/UserRepository.java

@@ -0,0 +1,13 @@
+package com.example.myserver.repositories;
+import java.util.Optional;
+
+import org.springframework.data.repository.CrudRepository;
+import com.example.myserver.models.User;
+public interface UserRepository extends CrudRepository<User,Integer> {
+    Optional<User> findByEmail(String email);
+    /*
+    // might use later
+     Optional<User> findByVerificationCode(String verificationCode);
+     */
+
+}

Backend/myserver/src/main/java/com/example/myserver/responses/LoginResponse.java

@@ -0,0 +1,25 @@
+package com.example.myserver.responses;
+
+
+public class LoginResponse {
+    private String token;
+    private long expiresIn;
+
+    public String getToken() {
+        return token;
+    }
+
+    public LoginResponse setToken(String token) {
+        this.token = token;
+        return this;
+    }
+
+    public long getExpiresIn() {
+        return expiresIn;
+    }
+
+    public LoginResponse setExpiresIn(long expiresIn) {
+        this.expiresIn = expiresIn;
+        return this;
+    }
+}

Backend/myserver/src/main/java/com/example/myserver/services/AuthenticationService.java

@@ -0,0 +1,45 @@
+package com.example.myserver.services;
+
+import org.springframework.security.authentication.AuthenticationManager;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.stereotype.Service;
+
+import com.example.myserver.dtos.LoginUserDto;
+import com.example.myserver.dtos.RegisterUserDto;
+import com.example.myserver.models.User;
+import com.example.myserver.repositories.UserRepository;
+
+@Service
+public class AuthenticationService {
+    
+    private final UserRepository userRepository;
+    private final PasswordEncoder passwordEncoder;
+    private final AuthenticationManager authenticationManager;
+
+    public AuthenticationService( UserRepository userRepository, AuthenticationManager authenticationManager , PasswordEncoder passwordEncoder){
+        this.userRepository=userRepository;
+        this.passwordEncoder=passwordEncoder;
+        this.authenticationManager=authenticationManager;
+    }
+
+    public User signUp(RegisterUserDto inputuser){
+        User user=new User(inputuser.getFirstname(),inputuser.getLastname(),inputuser.getEmail(),passwordEncoder.encode(inputuser.getPassword()));
+        /*
+        User user = new User()
+        .setFullname(inputuser.getFirstname(),inputuser.getLastname())
+        .setEmail(inputuser.getEmail())
+        .setPassword(passwordEncoder.encode(inputuser.getPassword()));
+        */
+
+        return userRepository.save(user) ;
+    }
+
+    public User authenticate(LoginUserDto inputuser){
+        authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(inputuser.getEmail()
+                                            , inputuser.getPassword()));
+        return userRepository.findByEmail(inputuser.getEmail()).orElseThrow();
+
+    }
+
+}

Backend/myserver/src/main/java/com/example/myserver/services/JwtService.java

@@ -0,0 +1,83 @@
+package com.example.myserver.services;
+
+import java.security.Key;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.Function;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.stereotype.Service;
+
+import io.jsonwebtoken.Claims;
+import io.jsonwebtoken.Jwts;
+import io.jsonwebtoken.SignatureAlgorithm;
+import io.jsonwebtoken.io.Decoders;
+import io.jsonwebtoken.security.Keys;
+
+@Service
+public class JwtService {
+    @Value("${security.jwt.secret-key}")
+    private String secretKey;
+    
+    @Value("${security.jwt.expiration-time}")
+    private long jwtExpiration;
+
+    public String extractUsername(String token){
+        return extractClaim(token,Claims::getSubject);
+    }
+
+    public <T> T extractClaim(String token,Function<Claims,T> claimsResolver){
+        final Claims claims=extractAllClaims(token);
+        return claimsResolver.apply(claims);
+
+    }
+
+    public String generateToken(UserDetails userDetails) {
+        return generateToken(new HashMap<>(), userDetails);
+    }
+
+    public String generateToken(Map<String, Object> extraClaims, UserDetails userDetails) {
+        return buildToken(extraClaims, userDetails, jwtExpiration);
+    }
+
+    public long getExpirtationTime(){
+        return jwtExpiration;
+    }
+    private String buildToken(Map<String,Object> extraClaims,UserDetails userDetails,long expiration){
+
+        return  Jwts.builder().setClaims(extraClaims).setSubject(userDetails.getUsername())
+                    .setIssuedAt(new Date(System.currentTimeMillis()))
+                    .setExpiration(new Date(System.currentTimeMillis() + expiration))
+                    .signWith(getSignInKey(), SignatureAlgorithm.HS256)
+                    .compact();
+    }
+    
+    public boolean isTokenValid(String token, UserDetails userDetails) {
+        final String username = extractUsername(token);
+        return (username.equals(userDetails.getUsername())) && !isTokenExpired(token);
+    }
+
+    private boolean isTokenExpired(String token) {
+        return extractExpiration(token).before(new Date());
+    }
+
+    private Date extractExpiration(String token) {
+        return extractClaim(token, Claims::getExpiration);
+    }
+
+    private Claims extractAllClaims(String token) {
+        return Jwts
+                .parserBuilder()
+                .setSigningKey(getSignInKey())
+                .build()
+                .parseClaimsJws(token)
+                .getBody();
+    }
+
+    private Key getSignInKey() {
+        byte[] keyBytes = Decoders.BASE64.decode(secretKey);
+        return Keys.hmacShaKeyFor(keyBytes);
+    }
+}

Backend/myserver/src/main/resources/application.properties

@@ -0,0 +1,14 @@
+#  spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration
+
+server.port=8081
+
+security.jwt.secret-key=3cfa76ef14937c1c0ea519f8fc057a80fcd04a7420f8e8bcd0a7567c272e007b
+security.jwt.expiration-time=3600000
+
+spring.datasource.url=jdbc:mysql://localhost:3306/drive?useSSL=false&serverTimezone=UTC
+spring.datasource.username=root
+spring.datasource.password=sqlsys
+
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+spring.jpa.hibernate.ddl-auto=update
+spring.jpa.open-in-view=false

Backend/myserver/src/test/java/com/example/myserver/MyserverApplicationTests.java

@@ -0,0 +1,13 @@
+package com.example.myserver;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class MyserverApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}

README.md

@@ -1,6 +1,6 @@
 # CC-MINI (2025)
 
-`deployment` branch is intended only for pushing deployment files.
+`backend` branch is intended only for pushing backend files within the [Backend](Backend/) folder.
 
 ---
 

environment-variables.txt.asc

@@ -1,15 +0,0 @@
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