diff options
Diffstat (limited to 'pdf-as-pdfbox/src')
| -rw-r--r-- | pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox/placeholder/SignaturePlaceholderExtractor.java | 62 |
1 files changed, 60 insertions, 2 deletions
diff --git a/pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox/placeholder/SignaturePlaceholderExtractor.java b/pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox/placeholder/SignaturePlaceholderExtractor.java index 85849109..00389a7e 100644 --- a/pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox/placeholder/SignaturePlaceholderExtractor.java +++ b/pdf-as-pdfbox/src/main/java/at/gv/egiz/pdfas/lib/impl/pdfbox/placeholder/SignaturePlaceholderExtractor.java @@ -50,6 +50,7 @@ import java.awt.geom.AffineTransform; import java.awt.geom.NoninvertibleTransformException; import java.awt.image.BufferedImage; import java.io.IOException; +import java.util.HashMap; import java.util.Hashtable; import java.util.Iterator; import java.util.List; @@ -57,10 +58,13 @@ import java.util.Map; import java.util.Vector; import org.apache.pdfbox.cos.COSBase; +import org.apache.pdfbox.cos.COSDictionary; import org.apache.pdfbox.cos.COSName; import org.apache.pdfbox.exceptions.WrappedIOException; import org.apache.pdfbox.pdmodel.PDDocument; import org.apache.pdfbox.pdmodel.PDPage; +import org.apache.pdfbox.pdmodel.font.PDFont; +import org.apache.pdfbox.pdmodel.font.PDFontFactory; import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObject; import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObjectImage; import org.apache.pdfbox.util.Matrix; @@ -73,6 +77,7 @@ import org.slf4j.LoggerFactory; import at.gv.egiz.pdfas.common.exceptions.PDFIOException; import at.gv.egiz.pdfas.common.exceptions.PdfAsException; import at.gv.egiz.pdfas.common.exceptions.PlaceholderExtractionException; +import at.gv.egiz.pdfas.lib.impl.pdfbox.DebugUtils; import at.gv.egiz.pdfas.lib.impl.placeholder.PlaceholderExtractorConstants; import at.gv.egiz.pdfas.lib.impl.placeholder.SignaturePlaceholderContext; import at.gv.egiz.pdfas.lib.impl.placeholder.SignaturePlaceholderData; @@ -104,11 +109,13 @@ public class SignaturePlaceholderExtractor extends PDFStreamEngine implements Pl private List<SignaturePlaceholderData> placeholders = new Vector<SignaturePlaceholderData>(); private int currentPage = 0; + private PDDocument doc; private SignaturePlaceholderExtractor(String placeholderId, - int placeholderMatchMode) throws IOException { + int placeholderMatchMode, PDDocument doc) throws IOException { super(ResourceLoader.loadProperties( "placeholder/pdfbox-reader.properties", true)); + this.doc = doc; } /** @@ -131,7 +138,7 @@ public class SignaturePlaceholderExtractor extends PDFStreamEngine implements Pl SignaturePlaceholderExtractor extractor; try { extractor = new SignaturePlaceholderExtractor(placeholderId, - matchMode); + matchMode, doc); } catch (IOException e2) { throw new PDFIOException("error.pdf.io.04", e2); } @@ -145,8 +152,10 @@ public class SignaturePlaceholderExtractor extends PDFStreamEngine implements Pl extractor.setCurrentPage(pageNr); if(page.getContents() != null && page.findResources() != null && page.getContents().getStream() != null) { + DebugUtils.showFontType("Before stream process", doc); extractor.processStream(page, page.findResources(), page .getContents().getStream()); + DebugUtils.showFontType("After stream process", doc); } SignaturePlaceholderData ret = matchPlaceholderPage( extractor.placeholders, placeholderId, matchMode); @@ -221,6 +230,7 @@ public class SignaturePlaceholderExtractor extends PDFStreamEngine implements Pl protected void processOperator(PDFOperator operator, List<COSBase> arguments) throws IOException { String operation = operator.getOperation(); + DebugUtils.showFontType("Before operator " + operator, doc); if (operation.equals("Do")) { COSName objectName = (COSName) arguments.get(0); Map<?, ?> xobjects = getResources().getXObjects(); @@ -287,6 +297,54 @@ public class SignaturePlaceholderExtractor extends PDFStreamEngine implements Pl } else { super.processOperator(operator, arguments); } + DebugUtils.showFontType("After operator " + operator, doc); + } + + private Map<String, PDFont> fonts; + + @Override + public Map<String, PDFont> getFonts() { + if (fonts == null) + { + // at least an empty map will be returned + // TODO we should return null instead of an empty map + fonts = new HashMap<String, PDFont>(); + if(this.getResources() != null && this.getResources().getCOSDictionary() != null) { + COSDictionary fontsDictionary = (COSDictionary) this.getResources().getCOSDictionary().getDictionaryObject(COSName.FONT); + if (fontsDictionary == null) + { + // ignore we do not want to set anything, never when creating a signature!!!!! + //fontsDictionary = new COSDictionary(); + //this.getResources().getCOSDictionary().setItem(COSName.FONT, fontsDictionary); + } + else + { + for (COSName fontName : fontsDictionary.keySet()) + { + COSBase font = fontsDictionary.getDictionaryObject(fontName); + // data-000174.pdf contains a font that is a COSArray, looks to be an error in the + // PDF, we will just ignore entries that are not dictionaries. + if (font instanceof COSDictionary) + { + PDFont newFont = null; + try + { + newFont = PDFontFactory.createFont((COSDictionary) font); + } + catch (IOException exception) + { + logger.error("error while creating a font", exception); + } + if (newFont != null) + { + fonts.put(fontName.getName(), newFont); + } + } + } + } + } + } + return fonts; } /** |