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lots of stuff and garbage code for automate to cleanup lots

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This commit is contained in:
Anthony Stirling
2023-07-09 00:05:33 +01:00
parent 5877b40be5
commit 6e726ac2a6
13 changed files with 699 additions and 272 deletions
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src/main/java/stirling/software/SPDF/controller/api/CropController.java Normal file
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package stirling.software.SPDF.controller.api;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RequestPart;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.tags.Tag;
import stirling.software.SPDF.utils.GeneralUtils;
import stirling.software.SPDF.utils.WebResponseUtils;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.media.Schema;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.itextpdf.kernel.geom.PageSize;
import com.itextpdf.kernel.geom.Rectangle;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfPage;
import com.itextpdf.kernel.pdf.PdfReader;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import com.itextpdf.kernel.pdf.canvas.parser.EventType;
import com.itextpdf.kernel.pdf.canvas.parser.PdfCanvasProcessor;
import com.itextpdf.kernel.pdf.canvas.parser.data.IEventData;
import com.itextpdf.kernel.pdf.canvas.parser.data.TextRenderInfo;
import com.itextpdf.kernel.pdf.canvas.parser.listener.IEventListener;
import com.itextpdf.kernel.pdf.xobject.PdfFormXObject;
import io.swagger.v3.oas.annotations.Hidden;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.Parameter;
import io.swagger.v3.oas.annotations.media.Schema;
import io.swagger.v3.oas.annotations.tags.Tag;
import stirling.software.SPDF.utils.WebResponseUtils;
@RestController
@Tag(name = "General", description = "General APIs")
public class CropController {
private static final Logger logger = LoggerFactory.getLogger(CropController.class);
@PostMapping(value = "/crop", consumes = "multipart/form-data")
@Operation(summary = "Crops a PDF document", description = "This operation takes an input PDF file and crops it according to the given coordinates. Input:PDF Output:PDF Type:SISO")
public ResponseEntity<byte[]> cropPdf(
@Parameter(description = "The input PDF file", required = true) @RequestParam("file") MultipartFile file,
@Parameter(description = "The x-coordinate of the top-left corner of the crop area", required = true, schema = @Schema(type = "number")) @RequestParam("x") float x,
@Parameter(description = "The y-coordinate of the top-left corner of the crop area", required = true, schema = @Schema(type = "number")) @RequestParam("y") float y,
@Parameter(description = "The width of the crop area", required = true, schema = @Schema(type = "number")) @RequestParam("width") float width,
@Parameter(description = "The height of the crop area", required = true, schema = @Schema(type = "number")) @RequestParam("height") float height) throws IOException {
byte[] bytes = file.getBytes();
System.out.println("x=" + x + ", " + "y=" + y + ", " + "width=" + width + ", " +"height=" + height );
PdfReader reader = new PdfReader(new ByteArrayInputStream(bytes));
PdfDocument pdfDoc = new PdfDocument(reader);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PdfWriter writer = new PdfWriter(baos);
PdfDocument outputPdf = new PdfDocument(writer);
int totalPages = pdfDoc.getNumberOfPages();
for (int i = 1; i <= totalPages; i++) {
PdfPage page = outputPdf.addNewPage(new PageSize(width, height));
PdfCanvas pdfCanvas = new PdfCanvas(page);
PdfFormXObject formXObject = pdfDoc.getPage(i).copyAsFormXObject(outputPdf);
// Save the graphics state, apply the transformations, add the object, and then
// restore the graphics state
pdfCanvas.saveState();
pdfCanvas.rectangle(x, y, width, height);
pdfCanvas.clip();
pdfCanvas.addXObject(formXObject, -x, -y);
pdfCanvas.restoreState();
}
outputPdf.close();
byte[] pdfContent = baos.toByteArray();
pdfDoc.close();
return WebResponseUtils.bytesToWebResponse(pdfContent,
file.getOriginalFilename().replaceFirst("[.][^.]+$", "") + "_cropped.pdf");
}
}