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Convert PDF to Docx, powerpoint and others (#90)
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97 changes: 97 additions & 0 deletions
97
src/main/java/stirling/software/SPDF/controller/converters/ConvertPDFToOffice.java
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| Original file line number | Diff line number | Diff line change |
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| package stirling.software.SPDF.controller.converters; | ||
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| import java.io.IOException; | ||
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| import org.springframework.http.ResponseEntity; | ||
| import org.springframework.stereotype.Controller; | ||
| import org.springframework.web.bind.annotation.GetMapping; | ||
| import org.springframework.web.bind.annotation.PostMapping; | ||
| import org.springframework.web.bind.annotation.RequestParam; | ||
| import org.springframework.web.multipart.MultipartFile; | ||
| import org.springframework.web.servlet.ModelAndView; | ||
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| import stirling.software.SPDF.utils.PDFToFile; | ||
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| @Controller | ||
| public class ConvertPDFToOffice { | ||
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| @GetMapping("/pdf-to-word") | ||
| public ModelAndView pdfToWord() { | ||
| ModelAndView modelAndView = new ModelAndView("convert/pdf-to-word"); | ||
| modelAndView.addObject("currentPage", "pdf-to-word"); | ||
| return modelAndView; | ||
| } | ||
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| @GetMapping("/pdf-to-presentation") | ||
| public ModelAndView pdfToPresentation() { | ||
| ModelAndView modelAndView = new ModelAndView("convert/pdf-to-presentation"); | ||
| modelAndView.addObject("currentPage", "pdf-to-presentation"); | ||
| return modelAndView; | ||
| } | ||
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| @GetMapping("/pdf-to-text") | ||
| public ModelAndView pdfToText() { | ||
| ModelAndView modelAndView = new ModelAndView("convert/pdf-to-text"); | ||
| modelAndView.addObject("currentPage", "pdf-to-text"); | ||
| return modelAndView; | ||
| } | ||
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| @GetMapping("/pdf-to-html") | ||
| public ModelAndView pdfToHTML() { | ||
| ModelAndView modelAndView = new ModelAndView("convert/pdf-to-html"); | ||
| modelAndView.addObject("currentPage", "pdf-to-html"); | ||
| return modelAndView; | ||
| } | ||
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| @GetMapping("/pdf-to-xml") | ||
| public ModelAndView pdfToXML() { | ||
| ModelAndView modelAndView = new ModelAndView("convert/pdf-to-xml"); | ||
| modelAndView.addObject("currentPage", "pdf-to-xml"); | ||
| return modelAndView; | ||
| } | ||
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| @PostMapping("/pdf-to-word") | ||
| public ResponseEntity<byte[]> processPdfToWord(@RequestParam("fileInput") MultipartFile inputFile, | ||
| @RequestParam("outputFormat") String outputFormat) throws IOException, InterruptedException { | ||
| PDFToFile pdfToFile = new PDFToFile(); | ||
| return pdfToFile.processPdfToOfficeFormat(inputFile, outputFormat, "writer_pdf_import"); | ||
| } | ||
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| @PostMapping("/pdf-to-presentation") | ||
| public ResponseEntity<byte[]> processPdfToPresentation(@RequestParam("fileInput") MultipartFile inputFile, | ||
| @RequestParam("outputFormat") String outputFormat) throws IOException, InterruptedException { | ||
| PDFToFile pdfToFile = new PDFToFile(); | ||
| return pdfToFile.processPdfToOfficeFormat(inputFile, outputFormat, "impress_pdf_import"); | ||
| } | ||
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| @PostMapping("/pdf-to-text") | ||
| public ResponseEntity<byte[]> processPdfToRTForTXT(@RequestParam("fileInput") MultipartFile inputFile, | ||
| @RequestParam("outputFormat") String outputFormat) throws IOException, InterruptedException { | ||
| PDFToFile pdfToFile = new PDFToFile(); | ||
| return pdfToFile.processPdfToOfficeFormat(inputFile, outputFormat, "writer_pdf_import"); | ||
| } | ||
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| @PostMapping("/pdf-to-html") | ||
| public ResponseEntity<byte[]> processPdfToHTML(@RequestParam("fileInput") MultipartFile inputFile) throws IOException, InterruptedException { | ||
| PDFToFile pdfToFile = new PDFToFile(); | ||
| return pdfToFile.processPdfToOfficeFormat(inputFile, "html", "writer_pdf_import"); | ||
| } | ||
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| @PostMapping("/pdf-to-xml") | ||
| public ResponseEntity<byte[]> processPdfToXML(@RequestParam("fileInput") MultipartFile inputFile) throws IOException, InterruptedException { | ||
| PDFToFile pdfToFile = new PDFToFile(); | ||
| return pdfToFile.processPdfToOfficeFormat(inputFile, "xml", "writer_pdf_import"); | ||
| } | ||
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| } |
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101 changes: 101 additions & 0 deletions
101
src/main/java/stirling/software/SPDF/utils/PDFToFile.java
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| @@ -0,0 +1,101 @@ | ||
| package stirling.software.SPDF.utils; | ||
| import java.io.ByteArrayOutputStream; | ||
| import java.io.File; | ||
| import java.io.FileInputStream; | ||
| import java.io.IOException; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
| import java.nio.file.StandardCopyOption; | ||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.zip.ZipEntry; | ||
| import java.util.zip.ZipOutputStream; | ||
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| import org.apache.commons.io.FileUtils; | ||
| import org.apache.commons.io.IOUtils; | ||
| import org.springframework.http.HttpHeaders; | ||
| import org.springframework.http.HttpStatus; | ||
| import org.springframework.http.MediaType; | ||
| import org.springframework.http.ResponseEntity; | ||
| import org.springframework.web.multipart.MultipartFile; | ||
| public class PDFToFile { | ||
| public ResponseEntity<byte[]> processPdfToOfficeFormat(MultipartFile inputFile, String outputFormat, String libreOfficeFilter) | ||
| throws IOException, InterruptedException { | ||
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| if (!"application/pdf".equals(inputFile.getContentType())) { | ||
| return new ResponseEntity<>(HttpStatus.BAD_REQUEST); | ||
| } | ||
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| // Get the original PDF file name without the extension | ||
| String originalPdfFileName = inputFile.getOriginalFilename(); | ||
| String pdfBaseName = originalPdfFileName.substring(0, originalPdfFileName.lastIndexOf('.')); | ||
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| // Validate output format | ||
| List<String> allowedFormats = Arrays.asList("doc", "docx", "odt", "ppt", "pptx", "odp", "rtf", "html","xml","txt:Text"); | ||
| if (!allowedFormats.contains(outputFormat)) { | ||
| return new ResponseEntity<>(HttpStatus.BAD_REQUEST); | ||
| } | ||
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| Path tempInputFile = null; | ||
| Path tempOutputDir = null; | ||
| byte[] fileBytes; | ||
| // Prepare response | ||
| HttpHeaders headers = new HttpHeaders(); | ||
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| try { | ||
| // Save the uploaded file to a temporary location | ||
| tempInputFile = Files.createTempFile("input_", ".pdf"); | ||
| Files.copy(inputFile.getInputStream(), tempInputFile, StandardCopyOption.REPLACE_EXISTING); | ||
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| // Prepare the output directory | ||
| tempOutputDir = Files.createTempDirectory("output_"); | ||
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| // Run the LibreOffice command | ||
| List<String> command = new ArrayList<>(Arrays.asList( | ||
| "soffice", "--infilter=" + libreOfficeFilter, "--convert-to", outputFormat, "--outdir", tempOutputDir.toString(), tempInputFile.toString() | ||
| )); | ||
| int returnCode = ProcessExecutor.getInstance(ProcessExecutor.Processes.LIBRE_OFFICE).runCommandWithOutputHandling(command); | ||
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| // Get output files | ||
| List<File> outputFiles = Arrays.asList(tempOutputDir.toFile().listFiles()); | ||
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| if (outputFiles.size() == 1) { | ||
| // Return single output file | ||
| File outputFile = outputFiles.get(0); | ||
| headers.setContentType(MediaType.APPLICATION_OCTET_STREAM); | ||
| if(outputFormat.equals("txt:Text")) { | ||
| outputFormat="txt"; | ||
| } | ||
| headers.setContentDispositionFormData("attachment", pdfBaseName + "." + outputFormat); | ||
| fileBytes = FileUtils.readFileToByteArray(outputFile); | ||
| } else { | ||
| // Return output files in a ZIP archive | ||
| headers.setContentType(MediaType.APPLICATION_OCTET_STREAM); | ||
| headers.setContentDispositionFormData("attachment", pdfBaseName + "To" + outputFormat + ".zip"); | ||
| ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); | ||
| ZipOutputStream zipOutputStream = new ZipOutputStream(byteArrayOutputStream); | ||
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| for (File outputFile : outputFiles) { | ||
| ZipEntry entry = new ZipEntry(outputFile.getName()); | ||
| zipOutputStream.putNextEntry(entry); | ||
| FileInputStream fis = new FileInputStream(outputFile); | ||
| IOUtils.copy(fis, zipOutputStream); | ||
| fis.close(); | ||
| zipOutputStream.closeEntry(); | ||
| } | ||
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| zipOutputStream.close(); | ||
| fileBytes = byteArrayOutputStream.toByteArray(); | ||
| } | ||
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| } finally { | ||
| // Clean up the temporary files | ||
| if (tempInputFile != null) | ||
| Files.delete(tempInputFile); | ||
| if (tempOutputDir != null) | ||
| FileUtils.deleteDirectory(tempOutputDir.toFile()); | ||
| } | ||
| return new ResponseEntity<>(fileBytes, headers, HttpStatus.OK); | ||
| } | ||
| } |
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