Fix encoding filename

leonardovannucci

2020-05-13 74967f038707374661a6765245c062cb9f7bc7d7

 dg1cloud-core/src/main/java/it/digione/dg1cloud/service/Utils.java
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@@ -4,6 +4,7 @@
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 import java.io.FileInputStream;
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 import java.io.FileNotFoundException;
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 import java.io.IOException;
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+import java.io.UnsupportedEncodingException;
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 import java.net.MalformedURLException;
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 import java.net.URL;
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@@ -33,7 +34,7 @@
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 	@Autowired private RegDocumentRepository regDocumentRepository;
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 	@Autowired private ServletContext servletContext;
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-	private static final Logger logger = LoggerFactory.getLogger(CloudService.class);
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+	private static final Logger logger = LoggerFactory.getLogger(Utils.class);
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 	public URL generateUrl(RegDocument regDocument) throws MalformedURLException {
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 		logger.debug("Genero l'url per il record file {} con id {}", regDocument.getFileName(), regDocument.getDocumentId());
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@@ -66,7 +67,7 @@
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 	}
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 	public ResponseEntity<InputStreamResource> getDownloadResponseEntity(String fileName, long id, String secretKey)
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-			throws FileNotFoundException {
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+			throws FileNotFoundException, UnsupportedEncodingException {
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 		logger.debug("Avvio download file {} con id {}", fileName, id);
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 		MediaType mediaType = MediaType.APPLICATION_OCTET_STREAM;
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@@ -104,7 +105,7 @@
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 		InputStreamResource isr = new InputStreamResource(fis);
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 		return ResponseEntity.ok()
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 				// Content-Disposition
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-				.header(HttpHeaders.CONTENT_DISPOSITION, "attachment;filename=" + file.getName())
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+				.header(HttpHeaders.CONTENT_DISPOSITION, "attachment;filename*=UTF-8''" + java.net.URLEncoder.encode(file.getName(),"UTF-8").replaceAll("\\+", "%20"))
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 				// Content-Type
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 				.contentType(mediaType)
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 				// Contet-Length