Initial

files/pom.xml

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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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>de.77zzcx7.nbs-cloud</groupId>
+        <artifactId>nbs-cloud-aggregator</artifactId>
+        <version>1-SNAPSHOT</version>
+    </parent>
+
+    <groupId>de.77zzcx7.nbs-cloud</groupId>
+    <artifactId>files</artifactId>
+    <packaging>jar</packaging>
+
+    <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-thymeleaf</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+<!--        <dependency>-->
+<!--            <groupId>org.flywaydb</groupId>-->
+<!--            <artifactId>flyway-core</artifactId>-->
+<!--        </dependency>-->
+<!--        <dependency>-->
+<!--            <groupId>org.thymeleaf.extras</groupId>-->
+<!--            <artifactId>thymeleaf-extras-springsecurity5</artifactId>-->
+<!--        </dependency>-->
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-tomcat</artifactId>
+            <scope>provided</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>-->
+    </dependencies>
+
+</project>

files/src/main/java/de/nbscloud/files/FileSystemService.java

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+package de.nbscloud.files;
+
+import de.nbscloud.files.config.FilesConfig;
+import de.nbscloud.files.exception.FileSystemServiceException;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Service
+public class FileSystemService {
+
+    public record ContentContainer(boolean directory, String name, long size) {
+    }
+
+    @Autowired
+    private FilesConfig filesConfig;
+
+    @Autowired
+    private LocationTracker locationTracker;
+
+    public Path createDirectory(String name) {
+        try {
+            return Files.createDirectory(this.locationTracker.getCurrentLocation().resolve(name));
+        } catch (IOException e) {
+            throw new FileSystemServiceException("Could not create directory", e);
+        }
+    }
+
+    public boolean delete(String name) {
+        try {
+            return Files.deleteIfExists(this.locationTracker.getCurrentLocation().resolve(name));
+        } catch (IOException e) {
+            throw new FileSystemServiceException("Could not delete file", e);
+        }
+    }
+
+    // TODO soft vs hard delete - first move into /trash then delete from there
+    public Path move(Path originalPath, Path newPath) {
+        try {
+            return Files.move(originalPath, newPath);
+        } catch (IOException e) {
+            throw new FileSystemServiceException("Could not move file", e);
+        }
+    }
+
+    public List<ContentContainer> list() {
+        try {
+            return Files.list(this.locationTracker.getCurrentLocation())
+                        .map(path -> {
+                            try {
+                                return new ContentContainer(Files.isDirectory(path),
+                                                            path.getFileName().toString(),
+                                                            Files.size(path));
+                            } catch (IOException e) {
+                                throw new FileSystemServiceException("Could not list files", e);
+                            }
+                        })
+                        .collect(Collectors.toList());
+        } catch (IOException e) {
+            throw new FileSystemServiceException("Could not list files", e);
+        }
+    }
+}

files/src/main/java/de/nbscloud/files/LocationTracker.java

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+package de.nbscloud.files;
+
+import de.nbscloud.files.config.FilesConfig;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+@Component
+public class LocationTracker {
+    @Autowired
+    private FilesConfig filesConfig;
+
+    private Path baseDirPath;
+    private Path currentLocation;
+
+    public void init() {
+        this.baseDirPath = Paths.get(this.filesConfig.getBaseDir());
+        this.currentLocation = baseDirPath.resolve("");
+    }
+
+    public void reset() {
+        init();
+    }
+
+    public Path getCurrentLocation() {
+        return this.currentLocation;
+    }
+
+    public void setCurrentLocation(String navigateTo) {
+        validate(navigateTo);
+
+        this.currentLocation = this.currentLocation.resolve(navigateTo);
+    }
+
+    private void validate(String navigateTo) {
+        if(navigateTo == null) {
+            throw new IllegalStateException("Null");
+        }
+
+        if(navigateTo.contains("..")) {
+            throw new IllegalStateException("Relative path");
+        }
+
+        if (Paths.get(navigateTo).isAbsolute()) {
+            throw new IllegalStateException("Absolute path: " + navigateTo);
+        }
+
+        if(!this.currentLocation.resolve(navigateTo).startsWith(this.baseDirPath)) {
+            throw new IllegalStateException("Illegal path: " + navigateTo);
+        }
+    }
+}

files/src/main/java/de/nbscloud/files/config/FilesConfig.java

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+package de.nbscloud.files.config;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@ConfigurationProperties(prefix = "nbs-cloud.files")
+public class FilesConfig {
+    private String baseDir;
+
+    public String getBaseDir() {
+        return baseDir;
+    }
+
+    public void setBaseDir(String baseDir) {
+        this.baseDir = baseDir;
+    }
+}

files/src/main/java/de/nbscloud/files/exception/FileSystemServiceException.java

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+package de.nbscloud.files.exception;
+
+public class FileSystemServiceException extends RuntimeException {
+    public FileSystemServiceException(String message, Exception cause) {
+        super(message, cause);
+    }
+}

files/src/main/resources/config/application.properties

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+### This is the main configuration file of the application.
+### Filtering of the @...@ values happens via the maven-resource-plugin. The execution of the plugin is configured in
+### the Spring Boot parent POM.// The same property exists on the server, look there for documentation
+spring.profiles.active=@activeProfiles@
+
+info.app.name=NoBullShit Cloud - Files app
+info.app.description=A simple web file admin app
+info.build.group=@project.groupId@
+info.build.artifact=@project.artifactId@
+info.build.version=@project.version@
+
+nbs-cloud.files.baseDir=/home/marius
+
+spring.flyway.enabled=false

files/target/classes/config/application.properties

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+### This is the main configuration file of the application.
+### Filtering of the @...@ values happens via the maven-resource-plugin. The execution of the plugin is configured in
+### the Spring Boot parent POM.// The same property exists on the server, look there for documentation
+spring.profiles.active=[]
+
+info.app.name=NoBullShit Cloud - Files app
+info.app.description=A simple web file admin app
+info.build.group=de.77zzcx7.nbs-cloud
+info.build.artifact=files
+info.build.version=1-SNAPSHOT
+
+nbs-cloud.files.baseDir=/home/marius
+
+spring.flyway.enabled=false

files/target/maven-archiver/pom.properties

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+artifactId=files
+groupId=de.77zzcx7.nbs-cloud
+version=1-SNAPSHOT

files/target/maven-status/maven-compiler-plugin/compile/default-compile/createdFiles.lst

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+de/nbscloud/files/FileSystemService.class
+de/nbscloud/files/LocationTracker.class
+de/nbscloud/files/config/FilesConfig.class
+de/nbscloud/files/exception/FileSystemServiceException.class
+de/nbscloud/files/FileSystemService$ContentContainer.class

files/target/maven-status/maven-compiler-plugin/compile/default-compile/inputFiles.lst

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+/home/marius/dev/nbs-cloud/files/src/main/java/de/nbscloud/files/LocationTracker.java
+/home/marius/dev/nbs-cloud/files/src/main/java/de/nbscloud/files/exception/FileSystemServiceException.java
+/home/marius/dev/nbs-cloud/files/src/main/java/de/nbscloud/files/FileSystemService.java
+/home/marius/dev/nbs-cloud/files/src/main/java/de/nbscloud/files/config/FilesConfig.java