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Initial commit.

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Florian THIERRY - Takiguchi
2020-03-07 15:32:55 +01:00
commit dbb7f1ad00
10 changed files with 343 additions and 0 deletions
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31
.gitignore vendored Normal file
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HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**
!**/src/test/**
### 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/
### VS Code ###
.vscode/

61
pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>rest-file-api</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-fileupload/commons-fileupload -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.4</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

13
src/main/java/com/example/demo/DemoApplication.java Normal file
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package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}

19
src/main/java/com/example/demo/configuration/MultipartResolverConfiguration.java Normal file
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package com.example.demo.configuration;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;
import java.nio.file.Path;
@Configuration
public class MultipartResolverConfiguration {
@Bean
public MultipartResolver multipartResolver(@Value("${app.files.uploads.max-size}") int maxSize) {
CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
multipartResolver.setMaxUploadSize(maxSize * 1000 * 1000);
return multipartResolver;
}
}

73
src/main/java/com/example/demo/controller/FileController.java Normal file
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package com.example.demo.controller;
import com.example.demo.payload.UploadFileResponse;
import com.example.demo.service.FileService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.io.Resource;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.support.ServletUriComponentsBuilder;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
@RestController
public class FileController {
private static final Logger logger = LoggerFactory.getLogger(FileController.class);
private FileService service;
public FileController(FileService service) {
this.service = service;
}
@PostMapping("/upload")
public UploadFileResponse upload(@RequestParam("file") MultipartFile file) {
String fileName = service.store(file);
String fileDownloadUri = ServletUriComponentsBuilder.fromCurrentContextPath()
.path("/downloadFile/")
.path(fileName)
.toUriString();
return new UploadFileResponse(fileName, fileDownloadUri, file.getContentType(), file.getSize());
}
@PostMapping("/uploadMultipleFiles")
public List<UploadFileResponse> uploadMultipleFiles(@RequestParam("files") MultipartFile[] files) {
return Arrays.asList(files)
.stream()
.map(file -> upload(file))
.collect(Collectors.toList());
}
@GetMapping("/downloadFile/{fileName:.+}")
public ResponseEntity<Resource> downloadFile(@PathVariable String fileName, HttpServletRequest request) {
// Load file as Resource
Resource resource = service.loadFileAsResource(fileName);
// Try to determine file's content type
String contentType = null;
try {
contentType = request.getServletContext().getMimeType(resource.getFile().getAbsolutePath());
} catch (IOException ex) {
logger.info("Could not determine file type.");
}
// Fallback to the default content type if type could not be determined
if(contentType == null) {
contentType = "application/octet-stream";
}
return ResponseEntity.ok()
.contentType(MediaType.parseMediaType(contentType))
.header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + resource.getFilename() + "\"")
.body(resource);
}
}

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src/main/java/com/example/demo/exception/FileStorageException.java Normal file
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package com.example.demo.exception;
import java.io.IOException;
public class FileStorageException extends RuntimeException {
public FileStorageException(String s) {
}
public FileStorageException(String s, IOException ex) {
}
}

12
src/main/java/com/example/demo/exception/MyFileNotFoundException.java Normal file
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package com.example.demo.exception;
import java.net.MalformedURLException;
public class MyFileNotFoundException extends RuntimeException {
public MyFileNotFoundException(String s, MalformedURLException ex) {
}
public MyFileNotFoundException(String s) {
}
}

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src/main/java/com/example/demo/payload/UploadFileResponse.java Normal file
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package com.example.demo.payload;
public class UploadFileResponse {
private String fileName;
private String fileDownloadUri;
private String fileType;
private long size;
public UploadFileResponse(String fileName, String fileDownloadUri, String fileType, long size) {
this.fileName = fileName;
this.fileDownloadUri = fileDownloadUri;
this.fileType = fileType;
this.size = size;
}
public String getFileName() {
return fileName;
}
public void setFileName(String fileName) {
this.fileName = fileName;
}
public String getFileDownloadUri() {
return fileDownloadUri;
}
public void setFileDownloadUri(String fileDownloadUri) {
this.fileDownloadUri = fileDownloadUri;
}
public String getFileType() {
return fileType;
}
public void setFileType(String fileType) {
this.fileType = fileType;
}
public long getSize() {
return size;
}
public void setSize(long size) {
this.size = size;
}
}

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src/main/java/com/example/demo/service/FileService.java Normal file
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package com.example.demo.service;
import com.example.demo.exception.FileStorageException;
import com.example.demo.exception.MyFileNotFoundException;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.Resource;
import org.springframework.core.io.UrlResource;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;
import java.io.IOException;
import java.net.MalformedURLException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
@Service
public class FileService {
private Path fileStorageLocation;
public FileService(@Value("${app.files.uploads.dir}") Path fileStorageLocation) {
this.fileStorageLocation = fileStorageLocation;
}
public String store(MultipartFile file) {
// Normalize file name
String fileName = StringUtils.cleanPath(file.getOriginalFilename());
try {
// Check if the file's name contains invalid characters
if(fileName.contains("..")) {
throw new FileStorageException("Sorry! Filename contains invalid path sequence " + fileName);
}
// Copy file to the target location (Replacing existing file with the same name)
Path targetLocation = fileStorageLocation.resolve(fileName);
Files.copy(file.getInputStream(), targetLocation, StandardCopyOption.REPLACE_EXISTING);
return fileName;
} catch (IOException ex) {
throw new FileStorageException("Could not store file " + fileName + ". Please try again!", ex);
}
}
public Resource loadFileAsResource(String fileName) {
try {
Path filePath = this.fileStorageLocation.resolve(fileName).normalize();
Resource resource = new UrlResource(filePath.toUri());
if(resource.exists()) {
return resource;
} else {
throw new MyFileNotFoundException("File not found " + fileName);
}
} catch (MalformedURLException ex) {
throw new MyFileNotFoundException("File not found " + fileName, ex);
}
}
}

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src/main/resources/application.yml Normal file
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spring:
servlet:
multipart:
enabled: true
file-size-threshold: 2KB
max-file-size: 2000MB
max-request-size: 2150MB
app:
files:
uploads:
dir: /home/takiguchi/Developpement/Java/back-ups/demo2/files/uploads
# Max size in MB
max-size: 2000