initial commit

.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/

build.gradle

@@ -0,0 +1,50 @@
+plugins {
+	id 'java'
+	id 'org.springframework.boot' version '3.3.3'
+	id 'io.spring.dependency-management' version '1.1.6'
+}
+
+group = 'de.w665'
+version = '0.0.1-SNAPSHOT'
+
+java {
+	toolchain {
+		languageVersion = JavaLanguageVersion.of(21)
+	}
+}
+
+configurations {
+	compileOnly {
+		extendsFrom annotationProcessor
+	}
+}
+
+repositories {
+	mavenCentral()
+}
+
+dependencies {
+	implementation 'org.springframework.boot:spring-boot-starter-security'
+	implementation 'org.springframework.boot:spring-boot-starter-web'
+	compileOnly 'org.projectlombok:lombok'
+	developmentOnly 'org.springframework.boot:spring-boot-devtools'
+	annotationProcessor 'org.projectlombok:lombok'
+	testImplementation 'org.springframework.boot:spring-boot-starter-test'
+	testImplementation 'org.springframework.security:spring-security-test'
+	testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+
+	implementation 'com.rethinkdb:rethinkdb-driver:2.4.4'
+	implementation 'com.google.code.gson:gson:2.11.0'
+
+	// https://mvnrepository.com/artifact/io.jsonwebtoken/jjwt-api
+	implementation group: 'io.jsonwebtoken', name: 'jjwt-api', version: '0.12.6'
+	// https://mvnrepository.com/artifact/io.jsonwebtoken/jjwt-impl
+	runtimeOnly group: 'io.jsonwebtoken', name: 'jjwt-impl', version: '0.12.6'
+	// https://mvnrepository.com/artifact/io.jsonwebtoken/jjwt-orgjson
+	runtimeOnly group: 'io.jsonwebtoken', name: 'jjwt-orgjson', version: '0.12.6'
+
+}
+
+tasks.named('test') {
+	useJUnitPlatform()
+}

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.10-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,252 @@
+#!/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.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   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/HEAD/platforms/jvm/plugins-application/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
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$PWD" ) || exit
+
+# 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: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$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
+
+
+# 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"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$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 "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,94 @@
+@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
+@rem SPDX-License-Identifier: Apache-2.0
+@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=.
+@rem This is normally unused
+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% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+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% equ 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!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'biblenotes'

src/main/java/de/w665/biblenotes/BiblenotesApplication.java

@@ -0,0 +1,13 @@
+package de.w665.biblenotes;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class BiblenotesApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(BiblenotesApplication.class, args);
+	}
+
+}

src/main/java/de/w665/biblenotes/config/SecurityConfig.java

@@ -0,0 +1,52 @@
+package de.w665.biblenotes.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.Customizer;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.annotation.web.configurers.LogoutConfigurer;
+import org.springframework.security.config.http.SessionCreationPolicy;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.core.userdetails.UsernameNotFoundException;
+import org.springframework.security.web.SecurityFilterChain;
+import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
+
+@Configuration
+@EnableWebSecurity
+public class SecurityConfig {
+
+    private final JwtAuthenticationFilter jwtAuthenticationFilter;
+
+    public SecurityConfig(JwtAuthenticationFilter jwtAuthenticationFilter) {
+        this.jwtAuthenticationFilter = jwtAuthenticationFilter;
+    }
+
+    // This bean is required for Spring Security, though it's not used in this project
+    // Prevents Spring from generating a default password
+    @Bean
+    UserDetailsService emptyDetailsService() {
+        return username -> { throw new UsernameNotFoundException("no local users, only JWT tokens allowed"); };
+    }
+
+    @Bean
+    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
+
+        // TODO: Fix security config for this project (currently old state from sharepulse)
+
+        http
+                .csrf(csrf -> csrf.ignoringRequestMatchers("/api/v1/**")) // Disable CSRF for API routes
+                .sessionManagement(sessionManagement -> sessionManagement
+                        .sessionCreationPolicy(SessionCreationPolicy.STATELESS) // No session will be created by Spring Security
+                )
+                .authorizeHttpRequests(authorize -> authorize
+                        .requestMatchers("/api/v1/secure/**").authenticated() // Secure these endpoints
+                        .anyRequest().permitAll() // All other requests are allowed without authentication
+                )
+                .addFilterBefore(jwtAuthenticationFilter, UsernamePasswordAuthenticationFilter.class) // Apply JWT filter
+                .logout(LogoutConfigurer::permitAll)
+                .rememberMe(Customizer.withDefaults());
+
+        return http.build();
+    }
+}

src/main/java/de/w665/biblenotes/db/RethinkDBConfig.java

@@ -0,0 +1,18 @@
+package de.w665.biblenotes.db;
+
+import lombok.Getter;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Configuration;
+
+@Getter
+@Configuration
+public class RethinkDBConfig {
+    @Value("${rethinkdb.host}")
+    private String host;
+
+    @Value("${rethinkdb.port}")
+    private int port;
+
+    @Value("${rethinkdb.database}")
+    private String database;
+}

src/main/java/de/w665/biblenotes/db/RethinkDBConnector.java

@@ -0,0 +1,27 @@
+package de.w665.biblenotes.db;
+
+import com.rethinkdb.RethinkDB;
+import com.rethinkdb.net.Connection;
+import jakarta.annotation.PostConstruct;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class RethinkDBConnector {
+
+    private final RethinkDBConfig config;
+    @Getter
+    private final RethinkDB r = RethinkDB.r;
+    @Getter
+    private Connection connection;
+
+    @PostConstruct
+    public void connectToDatabae() {
+        connection = r.connection().hostname(config.getHost()).port(config.getPort()).connect();
+        log.info("Connected to RethinkDB at " + config.getHost() + ":" + config.getPort() + " on database " + config.getDatabase());
+    }
+}

src/main/java/de/w665/biblenotes/db/RethinkDBService.java

@@ -0,0 +1,154 @@
+package de.w665.biblenotes.db;
+
+import com.rethinkdb.RethinkDB;
+import com.rethinkdb.gen.exc.ReqlOpFailedError;
+import com.rethinkdb.net.Connection;
+import de.w665.biblenotes.db.repo.UserRepository;
+import de.w665.biblenotes.model.User;
+import jakarta.annotation.PostConstruct;
+import jakarta.annotation.PreDestroy;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.stereotype.Service;
+
+import java.util.Optional;
+
+@Slf4j
+@Service
+public class RethinkDBService {
+
+    private final RethinkDBConfig config;
+    private final RethinkDB r;
+    private final Connection connection;
+    private final UserRepository userRepository;
+
+    @Value("${biblenotes.auto-reset-on-startup}")
+    private boolean autoResetOnStartup;
+    @Value("${biblenotes.management.user.username}")
+    private String defaultUsername;
+    @Value("${biblenotes.management.user.password}")
+    private String defaultPassword;
+
+    private final BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
+
+    @Autowired
+    public RethinkDBService(RethinkDBConfig config, RethinkDBConnector connector, UserRepository userRepository) {
+        this.config = config;
+
+        // mapping to private vars for easier access
+        this.r = connector.getR();
+        this.connection = connector.getConnection();
+        this.userRepository = userRepository;
+    }
+
+    @PostConstruct
+    public void initialize() {
+
+        // rethinkdb check if database exists
+        try {
+            r.dbCreate(config.getDatabase()).run(connection).stream();
+            log.debug("Database " + config.getDatabase() + " created");
+        } catch (ReqlOpFailedError e) {
+            log.debug("Database " + config.getDatabase() + " already exists. Error: " + e.getClass().getSimpleName());
+        }
+
+        // rethinkdb check if table file_uploads exists
+        try {
+            r.db(config.getDatabase()).tableCreate("file_uploads").run(connection).stream();
+            log.debug("Table 'file_uploads' created successfully.");
+        } catch (ReqlOpFailedError e) {
+            log.debug("Table 'file_uploads' already exists.");
+            if(autoResetOnStartup) {
+                log.debug("Clearing content...");
+                r.db(config.getDatabase()).table("file_uploads").delete().run(connection);
+                log.debug("Table 'file_uploads' cleared successfully.");
+            }
+        }
+
+        // rethinkdb check if table id_store exists
+        try {
+            r.db(config.getDatabase()).tableCreate("id_store").run(connection).stream();
+            log.debug("Table 'id_store' created successfully.");
+        } catch (ReqlOpFailedError e) {
+            log.debug("Table 'id_store' already exists.");
+            if(autoResetOnStartup) {
+                log.debug("Clearing content...");
+                r.db(config.getDatabase()).table("id_store").delete().run(connection);
+                log.debug("Table 'id_store' cleared successfully.");
+            }
+        }
+
+        // rethinkdb check if table expired_file_uploads exists
+        try {
+            r.db(config.getDatabase()).tableCreate("expired_file_uploads").run(connection).stream();
+            log.debug("Table 'expired_file_uploads' created successfully.");
+        } catch (ReqlOpFailedError e) {
+            log.debug("Table 'expired_file_uploads' already exists.");
+            if(autoResetOnStartup) {
+                log.debug("Clearing content...");
+                r.db(config.getDatabase()).table("expired_file_uploads").delete().run(connection);
+                log.debug("Table 'expired_file_uploads' cleared successfully.");
+            }
+        }
+
+        // rethinkdb check if table users exists
+        try {
+            r.db(config.getDatabase()).tableCreate("users").run(connection).stream();
+            log.debug("Table 'users' created successfully.");
+        } catch (ReqlOpFailedError e) {
+            log.debug("Table 'users' already exists.");
+            if(autoResetOnStartup) {
+                log.debug("Clearing content...");
+                r.db(config.getDatabase()).table("users").delete().run(connection);
+                log.debug("Table 'users' cleared successfully.");
+            }
+        }
+
+        // rethinkdb check if table user_logins exists
+        try {
+            r.db(config.getDatabase()).tableCreate("user_logins").run(connection).stream();
+            log.debug("Table 'user_logins' created successfully.");
+        } catch (ReqlOpFailedError e) {
+            log.debug("Table 'user_logins' already exists.");
+            if(autoResetOnStartup) {
+                log.debug("Clearing content...");
+                r.db(config.getDatabase()).table("user_logins").delete().run(connection);
+                log.debug("Table 'user_logins' cleared successfully.");
+            }
+        } finally {
+            try {
+                r.db(config.getDatabase()).table("user_logins").indexCreate("loginTime").run(connection);
+                log.debug("Secondary index 'loginTime' on table 'user_logins' successfully created.");
+            } catch (ReqlOpFailedError e) {
+                log.debug("Secondary index 'loginTime' already exists.");
+            } finally {
+                r.db(config.getDatabase()).table("user_logins").indexWait("loginTime").run(connection);
+            }
+        }
+
+        initializeAdminUser();
+
+        log.info("Database ready for operation!");
+    }
+
+    private void initializeAdminUser() {
+        Optional<User> adminUser = userRepository.retrieveUserByUsername("admin");
+        if(adminUser.isEmpty()) {
+            User user = new User();
+            user.setUsername(defaultUsername);
+            user.setPassword(passwordEncoder.encode(defaultPassword));
+            user.setRole("ADMIN");
+            userRepository.insertUser(user);
+            log.debug("Admin user created with default credentials. Username: admin, Password: admin");
+        }
+    }
+
+    @PreDestroy
+    public void close() {
+        if (connection != null) {
+            connection.close();
+        }
+    }
+}

src/main/java/de/w665/biblenotes/db/repo/UserLoginRepository.java

@@ -0,0 +1,67 @@
+package de.w665.biblenotes.db.repo;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.gson.Gson;
+import com.rethinkdb.RethinkDB;
+import com.rethinkdb.net.Connection;
+import com.rethinkdb.net.Result;
+import de.w665.biblenotes.db.RethinkDBConfig;
+import de.w665.biblenotes.db.RethinkDBConnector;
+import de.w665.biblenotes.model.UserLogin;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Slf4j
+@Repository
+public class UserLoginRepository {
+    private final RethinkDB r;
+    private final Connection connection;
+    private final RethinkDBConfig config;
+    private final String TABLE_NAME = "user_logins";
+
+    private final Gson gson = new Gson();
+    private final ObjectMapper mapper = new ObjectMapper();
+
+
+    @Autowired
+    public UserLoginRepository(RethinkDBConnector connector, RethinkDBConfig config) {
+        this.r = connector.getR();
+        this.connection = connector.getConnection();
+        this.config = config;
+    }
+
+    public void insertUserLogin(UserLogin userLogin) {
+        String uuid = r.uuid().run(connection, String.class).first();
+        userLogin.setId(uuid);
+        r.db(config.getDatabase()).table(TABLE_NAME).insert(userLogin).run(connection);
+    }
+
+    public UserLogin getLastLogin(String userId) {
+        // Get the second most recent login (the most recent is the current one)
+        Result<UserLogin> result = r.db(config.getDatabase()).table(TABLE_NAME)
+                .orderBy().optArg("index", r.desc("loginTime"))
+                .filter(r.hashMap("userId", userId))
+                .skip(1).limit(1)
+                .run(connection, UserLogin.class);
+        // Return the second most recent login if exists
+        return result.hasNext() ? result.next() : null;
+    }
+
+    public List<UserLogin> getUserLogins(String userId) {
+        Result<UserLogin> result = r.db(config.getDatabase()).table(TABLE_NAME)
+                .orderBy().optArg("index", r.desc("loginTime"))
+                .filter(r.hashMap("userId", userId))
+                .run(connection, UserLogin.class);
+        return result.toList();
+    }
+
+    public void deleteAllUserLogins(String userId) {
+        r.db(config.getDatabase()).table(TABLE_NAME)
+                .filter(r.hashMap("userId", userId))
+                .delete()
+                .run(connection);
+    }
+}

src/main/java/de/w665/biblenotes/db/repo/UserRepository.java

@@ -0,0 +1,55 @@
+package de.w665.biblenotes.db.repo;
+
+import com.rethinkdb.RethinkDB;
+import com.rethinkdb.net.Connection;
+import de.w665.biblenotes.db.RethinkDBConfig;
+import de.w665.biblenotes.db.RethinkDBConnector;
+import de.w665.biblenotes.model.User;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Repository;
+import java.util.*;
+
+@Repository
+public class UserRepository {
+    private final RethinkDB r;
+    private final Connection connection;
+    private final RethinkDBConfig config;
+    @Autowired
+    public UserRepository(RethinkDBConnector connector, RethinkDBConfig config) {
+        this.r = connector.getR();
+        this.connection = connector.getConnection();
+        this.config = config;
+    }
+
+    public Optional<User> retrieveUserByUsername(String username) {
+        try {
+            User user = r.db(config.getDatabase()).table("users")
+                    .filter(r.hashMap("username", username))
+                    .run(connection, User.class)
+                    .next();
+            return Optional.ofNullable(user);
+        } catch (NoSuchElementException e) {
+            return Optional.empty();
+        }
+    }
+
+    public void updateLastLoginForUser(String username, Date lastLogin) {
+        r.db(config.getDatabase()).table("users")
+                .filter(r.hashMap("username", username))
+                .update(r.hashMap("lastLogin", lastLogin.getTime()))
+                .run(connection);
+    }
+
+    public void updateUser(User user) {
+        r.db(config.getDatabase()).table("users")
+                .filter(r.hashMap("id", user.getId()))
+                .update(user)
+                .run(connection);
+    }
+
+    public void insertUser(User user) {
+        String optionalUuid = r.uuid().run(connection, String.class).first();
+        user.setId(optionalUuid);
+        r.db(config.getDatabase()).table("users").insert(user).run(connection);
+    }
+}

src/main/java/de/w665/biblenotes/model/User.java

@@ -0,0 +1,16 @@
+package de.w665.biblenotes.model;
+
+import lombok.*;
+
+@Getter
+@Setter
+@ToString
+@NoArgsConstructor
+@AllArgsConstructor
+public class User {
+    private String id; // ID is auto mapped by RethinkDB
+    private String username;
+    private String password;
+    private String email;
+    private String role;
+}

src/main/java/de/w665/biblenotes/model/UserLogin.java

@@ -0,0 +1,21 @@
+package de.w665.biblenotes.model;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+import java.util.Date;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class UserLogin {
+    String id;
+    String userId;
+    @JsonFormat(timezone = "ETC")
+    Date loginTime;
+    String loginIp;
+}

src/main/java/de/w665/biblenotes/rest/security/JwtAuthenticationFilter.java

@@ -0,0 +1,72 @@
+package de.w665.biblenotes.rest.security;
+
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
+import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
+import org.springframework.security.web.util.matcher.RequestMatcher;
+import org.springframework.stereotype.Component;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.List;
+
+@Component
+@Slf4j
+@RequiredArgsConstructor
+public class JwtAuthenticationFilter extends OncePerRequestFilter {
+
+    private final AuthenticationService authenticationService;
+    private final RequestMatcher requestMatcher = new AntPathRequestMatcher("/api/v1/secure/**");
+
+    @Override
+    protected void doFilterInternal(@NotNull HttpServletRequest request, @NotNull HttpServletResponse response, @NotNull FilterChain filterChain) throws ServletException, IOException {
+
+        logger.debug("Filtering request: " + request.getRequestURI());
+
+        if(!requestMatcher.matches(request)) {
+            logger.debug("Request does not match the secure path. Skipping JWT authentication.");
+            filterChain.doFilter(request, response);
+            return;
+        }
+
+        try {
+            String jwt = getJwtFromRequest(request);
+            if (jwt != null && authenticationService.validateToken(jwt)) {
+                String username = authenticationService.extractSubject(jwt);
+                // Extract the role from the JWT and set it to Spring AuthenticationContext for access control
+                String role = authenticationService.getClaimValue(jwt, "role", String.class);
+                List<GrantedAuthority> authorities = Collections.singletonList(new SimpleGrantedAuthority("ROLE_" + role));
+
+                UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(username, null, authorities);
+                authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
+                SecurityContextHolder.getContext().setAuthentication(authentication);
+                // SUCCESSFUL AUTHENTICATION
+                filterChain.doFilter(request, response);
+            } else {
+                logger.warn("Unauthorized: Authentication token is missing or invalid.");
+            }
+        } catch (Exception ex) {
+            logger.warn("Could not set user authentication in security context. An error occurred during JWT processing.", ex);
+        }
+
+        response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
+    }
+
+    private String getJwtFromRequest(HttpServletRequest request) {
+        String bearerToken = request.getHeader("Authorization");
+        if (bearerToken != null && bearerToken.startsWith("Bearer ")) {
+            return bearerToken.substring(7);
+        }
+        return null;
+    }
+}

src/main/java/de/w665/biblenotes/service/AuthenticationService.java

@@ -0,0 +1,106 @@
+package de.w665.biblenotes.service;
+
+import jakarta.annotation.PostConstruct;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.stereotype.Service;
+
+import javax.crypto.SecretKey;
+import java.util.Base64;
+import java.util.Date;
+import java.util.Optional;
+
+@Slf4j
+@Service
+public class AuthenticationService {
+    private final UserRepository userRepository;
+    private final UserLoginRepository userLoginRepository;
+
+    @Value("${secureapi.jwt.secret}")
+    private String secretString;
+    @Value("${secureapi.jwt.expiration}")
+    private long expirationTime; // in milliseconds
+    private SecretKey secretKey;
+
+    private final BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
+
+    public AuthenticationService(UserRepository userRepository, UserLoginRepository userLoginRepository) {
+        this.userRepository = userRepository;
+        this.userLoginRepository = userLoginRepository;
+    }
+
+    @PostConstruct
+    public void init() {
+        log.debug("Initializing secret key");
+        byte[] encodedKey = Base64.getEncoder().encode(secretString.getBytes()); // encode the secret key
+        this.secretKey = Keys.hmacShaKeyFor(encodedKey);
+    }
+
+    public String authenticate(String username, String password, String remoteAddr, long... expirationTime/*FOR TESTING VALIDITY*/) {
+        if(expirationTime.length > 0) {
+            this.expirationTime = expirationTime[0];
+        }
+        Optional<User> optionalUser = userRepository.retrieveUserByUsername(username);
+        if (optionalUser.isPresent() && passwordEncoder.matches(password, optionalUser.get().getPassword())) {
+            User user = optionalUser.get();
+
+            userLoginRepository.insertUserLogin(new UserLogin(""/*Auto generated*/, user.getId(), new Date(), remoteAddr));
+            userRepository.updateLastLoginForUser(user.getUsername(), new Date());
+            return generateToken(user);
+        }
+        return null;
+    }
+
+    private String generateToken(User username) {
+        long nowMillis = System.currentTimeMillis();
+        Date now = new Date(nowMillis);
+        Date expiryDate = new Date(nowMillis + expirationTime);
+
+        return Jwts.builder()
+                .subject("SharePulse Authentication Token")
+                .issuedAt(now)
+                .claim("role", username.getRole())
+                .claim("username", username.getUsername())
+                .expiration(expiryDate)
+                .signWith(secretKey)
+                .compact();
+    }
+
+    public boolean validateToken(String token) {
+        try {
+            Jwt<?,?> jwt = Jwts.parser().verifyWith(secretKey).build().parseSignedClaims(token);
+            Claims claims = (Claims) jwt.getPayload();
+            return !claims.getExpiration().before(new Date()); // Checks if the token is expired too
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
+    public String extractSubject(String token) {
+        return Jwts.parser().verifyWith(secretKey).build().parseSignedClaims(token).getPayload().getSubject();
+    }
+
+    /**
+     * Retrieves a typed claim from the JWT.
+     * @param token the JWT from which to extract the claim
+     * @param claimName the name of the claim to retrieve
+     * @param claimType the Class object of <T> the expected type of the claim value
+     * @return the value of the specified claim as type T, or null if not found or in case of an error
+     * Usage example: getClaimValue(token, "role", String.class)
+     */
+    public <T> T getClaimValue(String token, String claimName, Class<T> claimType) {
+        try {
+            Jwt<?, ?> jwt = Jwts.parser().verifyWith(secretKey).build().parseSignedClaims(token);
+            Claims claims = (Claims) jwt.getPayload();
+            return claims.get(claimName, claimType);
+        } catch (Exception e) {
+            log.error("Error parsing claims from token: ", e);
+            return null;
+        }
+    }
+
+    public String encodePassword(String password) {
+        return passwordEncoder.encode(password);
+    }
+}

src/main/resources/application.properties

@@ -0,0 +1 @@
+spring.application.name=biblenotes

src/test/java/de/w665/biblenotes/BiblenotesApplicationTests.java

@@ -0,0 +1,13 @@
+package de.w665.biblenotes;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class BiblenotesApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}