mirror of
https://github.com/sismics/docs.git
synced 2024-11-22 05:57:57 +01:00
non crashing pdf font
This commit is contained in:
Benjamin Gamard
parent
f7b84238df
commit
5cdbe9338b
@ -19,7 +19,7 @@ import org.apache.pdfbox.pdmodel.PDDocument;
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import org.apache.pdfbox.pdmodel.PDPage;
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import org.apache.pdfbox.pdmodel.PDPageContentStream;
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import org.apache.pdfbox.pdmodel.common.PDRectangle;
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import org.apache.pdfbox.pdmodel.font.PDType1Font;
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import org.apache.pdfbox.pdmodel.font.DocsPDType1Font;
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import org.apache.pdfbox.pdmodel.graphics.image.JPEGFactory;
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import org.apache.pdfbox.pdmodel.graphics.image.LosslessFactory;
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import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
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@ -193,9 +193,9 @@ public class PdfUtil {
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if (metadata) {
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PDPage page = new PDPage();
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doc.addPage(page);
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try (PdfPage pdfPage = new PdfPage(doc, page, margin * mmPerInch, PDType1Font.HELVETICA, 12)) {
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try (PdfPage pdfPage = new PdfPage(doc, page, margin * mmPerInch, DocsPDType1Font.HELVETICA, 12)) {
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SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
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pdfPage.addText(documentDto.getTitle(), true, PDType1Font.HELVETICA_BOLD, 16)
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pdfPage.addText(documentDto.getTitle(), true, DocsPDType1Font.HELVETICA_BOLD, 16)
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.newLine()
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.addText("Created by " + documentDto.getCreator()
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+ " on " + dateFormat.format(new Date(documentDto.getCreateTimestamp())), true)
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@ -228,7 +228,7 @@ public class PdfUtil {
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}
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pdfPage.addText("Language: " + documentDto.getLanguage())
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.newLine()
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.addText("Files in this document : " + fileList.size(), false, PDType1Font.HELVETICA_BOLD, 12);
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.addText("Files in this document : " + fileList.size(), false, DocsPDType1Font.HELVETICA_BOLD, 12);
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}
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}
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@ -28,7 +28,7 @@ public class PdfPage implements Closeable {
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* @param margin Margin
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* @param defaultFont Default font
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* @param defaultFontSize Default fond size
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* @throws IOException
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* @throws IOException e
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*/
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public PdfPage(PDDocument pdDoc, PDPage pdPage, float margin, PDFont defaultFont, int defaultFontSize) throws IOException {
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this.pdPage = pdPage;
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@ -45,7 +45,7 @@ public class PdfPage implements Closeable {
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* Write a text with default font.
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*
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* @param text Text
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* @throws IOException
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* @throws IOException e
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*/
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public PdfPage addText(String text) throws IOException {
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drawText(pdPage.getMediaBox().getWidth() - 2 * margin, defaultFont, defaultFontSize, text, false);
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@ -57,7 +57,7 @@ public class PdfPage implements Closeable {
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*
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* @param text Text
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* @param centered If true, the text will be centered in the page
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* @throws IOException
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* @throws IOException e
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*/
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public PdfPage addText(String text, boolean centered) throws IOException {
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drawText(pdPage.getMediaBox().getWidth() - 2 * margin, defaultFont, defaultFontSize, text, centered);
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@ -71,7 +71,7 @@ public class PdfPage implements Closeable {
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* @param centered If true, the text will be centered in the page
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* @param font Font
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* @param fontSize Font size
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* @throws IOException
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* @throws IOException e
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*/
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public PdfPage addText(String text, boolean centered, PDFont font, int fontSize) throws IOException {
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drawText(pdPage.getMediaBox().getWidth() - 2 * margin, font, fontSize, text, centered);
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@ -81,7 +81,7 @@ public class PdfPage implements Closeable {
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/**
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* Create a new line.
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*
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* @throws IOException
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* @throws IOException e
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*/
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public PdfPage newLine() throws IOException {
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pdContent.newLineAtOffset(0, - defaultFont.getFontDescriptor().getFontBoundingBox().getHeight() / 1000 * defaultFontSize);
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@ -96,16 +96,13 @@ public class PdfPage implements Closeable {
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* @param fontSize Font size
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* @param text Text
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* @param centered If true, the text will be centered in the paragraph
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* @throws IOException
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* @throws IOException e
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*/
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private void drawText(float paragraphWidth, PDFont font, int fontSize, String text, boolean centered) throws IOException {
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if (text == null) {
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return;
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}
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// Remove \r\n non breakable space
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text = text.replaceAll("[\r\n]", "").replace("\u00A0", " ");
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pdContent.setFont(font, fontSize);
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int start = 0;
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int end = 0;
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@ -0,0 +1,319 @@
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package org.apache.pdfbox.pdmodel.font;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.fontbox.EncodedFont;
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import org.apache.fontbox.FontBoxFont;
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import org.apache.fontbox.util.BoundingBox;
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import org.apache.pdfbox.cos.COSName;
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import org.apache.pdfbox.pdmodel.common.PDRectangle;
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import org.apache.pdfbox.pdmodel.font.encoding.*;
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import org.apache.pdfbox.util.Matrix;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.GeneralPath;
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import java.awt.geom.Point2D;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import static org.apache.pdfbox.pdmodel.font.UniUtil.getUniNameOfCodePoint;
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/**
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* Safe non-crashing font even if no glyph are present.
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* Will replace unknown glyphs by a space.
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*
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* @author bgamard
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*/
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public class DocsPDType1Font extends PDSimpleFont {
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private static final Log LOG = LogFactory.getLog(DocsPDType1Font.class);
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// alternative names for glyphs which are commonly encountered
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private static final Map<String, String> ALT_NAMES = new HashMap<>();
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static {
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ALT_NAMES.put("ff", "f_f");
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ALT_NAMES.put("ffi", "f_f_i");
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ALT_NAMES.put("ffl", "f_f_l");
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ALT_NAMES.put("fi", "f_i");
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ALT_NAMES.put("fl", "f_l");
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ALT_NAMES.put("st", "s_t");
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ALT_NAMES.put("IJ", "I_J");
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ALT_NAMES.put("ij", "i_j");
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ALT_NAMES.put("ellipsis", "elipsis"); // misspelled in ArialMT
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}
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public static final DocsPDType1Font HELVETICA = new DocsPDType1Font("Helvetica");
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public static final DocsPDType1Font HELVETICA_BOLD = new DocsPDType1Font("Helvetica-Bold");
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/**
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* embedded or system font for rendering.
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*/
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private final FontBoxFont genericFont;
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private final boolean isEmbedded;
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private final boolean isDamaged;
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private Matrix fontMatrix;
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private final AffineTransform fontMatrixTransform;
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private BoundingBox fontBBox;
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/**
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* to improve encoding speed.
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*/
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private final Map<Integer, byte[]> codeToBytesMap;
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/**
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* Creates a Type 1 standard 14 font for embedding.
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*
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* @param baseFont One of the standard 14 PostScript names
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*/
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private DocsPDType1Font(String baseFont) {
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super(baseFont);
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dict.setItem(COSName.SUBTYPE, COSName.TYPE1);
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dict.setName(COSName.BASE_FONT, baseFont);
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if ("ZapfDingbats".equals(baseFont)) {
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encoding = ZapfDingbatsEncoding.INSTANCE;
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} else if ("Symbol".equals(baseFont)) {
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encoding = SymbolEncoding.INSTANCE;
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} else {
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encoding = WinAnsiEncoding.INSTANCE;
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dict.setItem(COSName.ENCODING, COSName.WIN_ANSI_ENCODING);
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}
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// standard 14 fonts may be accessed concurrently, as they are singletons
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codeToBytesMap = new ConcurrentHashMap<>();
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FontMapping<FontBoxFont> mapping = FontMappers.instance()
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.getFontBoxFont(getBaseFont(),
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getFontDescriptor());
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genericFont = mapping.getFont();
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if (mapping.isFallback()) {
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String fontName;
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try {
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fontName = genericFont.getName();
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} catch (IOException e) {
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fontName = "?";
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}
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LOG.warn("Using fallback font " + fontName + " for base font " + getBaseFont());
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}
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isEmbedded = false;
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isDamaged = false;
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fontMatrixTransform = new AffineTransform();
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}
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/**
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* Returns the PostScript name of the font.
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*/
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private String getBaseFont() {
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return dict.getNameAsString(COSName.BASE_FONT);
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}
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@Override
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public float getHeight(int code) throws IOException {
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String name = codeToName(code);
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if (getStandard14AFM() != null) {
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String afmName = getEncoding().getName(code);
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return getStandard14AFM().getCharacterHeight(afmName);
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} else {
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return (float) genericFont.getPath(name).getBounds().getHeight();
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}
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}
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@Override
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protected byte[] encode(int unicode) throws IOException {
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byte[] bytes = codeToBytesMap.get(unicode);
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if (bytes != null) {
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return bytes;
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}
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String name = getGlyphList().codePointToName(unicode);
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if (isStandard14()) {
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// genericFont not needed, thus simplified code
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// this is important on systems with no installed fonts
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if (!encoding.contains(name)) {
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return " ".getBytes();
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}
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if (".notdef".equals(name)) {
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return " ".getBytes();
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}
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} else {
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if (!encoding.contains(name)) {
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return " ".getBytes();
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}
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String nameInFont = getNameInFont(name);
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if (nameInFont.equals(".notdef") || !genericFont.hasGlyph(nameInFont)) {
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return " ".getBytes();
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}
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}
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Map<String, Integer> inverted = encoding.getNameToCodeMap();
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int code = inverted.get(name);
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bytes = new byte[]{(byte) code};
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codeToBytesMap.put(code, bytes);
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return bytes;
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}
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@Override
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public float getWidthFromFont(int code) throws IOException {
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String name = codeToName(code);
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// width of .notdef is ignored for substitutes, see PDFBOX-1900
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if (!isEmbedded && ".notdef".equals(name)) {
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return 250;
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}
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float width = genericFont.getWidth(name);
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Point2D p = new Point2D.Float(width, 0);
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fontMatrixTransform.transform(p, p);
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return (float) p.getX();
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}
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@Override
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public boolean isEmbedded() {
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return isEmbedded;
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}
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@Override
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public float getAverageFontWidth() {
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if (getStandard14AFM() != null) {
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return getStandard14AFM().getAverageCharacterWidth();
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} else {
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return super.getAverageFontWidth();
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}
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}
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@Override
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public int readCode(InputStream in) throws IOException {
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return in.read();
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}
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@Override
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protected Encoding readEncodingFromFont() throws IOException {
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if (!isEmbedded() && getStandard14AFM() != null) {
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// read from AFM
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return new Type1Encoding(getStandard14AFM());
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} else {
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// extract from Type1 font/substitute
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if (genericFont instanceof EncodedFont) {
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return Type1Encoding.fromFontBox(((EncodedFont) genericFont).getEncoding());
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} else {
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// default (only happens with TTFs)
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return StandardEncoding.INSTANCE;
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}
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}
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}
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@Override
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public FontBoxFont getFontBoxFont() {
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return genericFont;
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}
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@Override
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public String getName() {
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return getBaseFont();
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}
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@Override
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public BoundingBox getBoundingBox() throws IOException {
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if (fontBBox == null) {
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fontBBox = generateBoundingBox();
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}
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return fontBBox;
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}
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private BoundingBox generateBoundingBox() throws IOException {
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if (getFontDescriptor() != null) {
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PDRectangle bbox = getFontDescriptor().getFontBoundingBox();
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if (bbox != null &&
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(bbox.getLowerLeftX() != 0 || bbox.getLowerLeftY() != 0 ||
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bbox.getUpperRightX() != 0 || bbox.getUpperRightY() != 0)) {
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return new BoundingBox(bbox.getLowerLeftX(), bbox.getLowerLeftY(),
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bbox.getUpperRightX(), bbox.getUpperRightY());
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}
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}
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return genericFont.getFontBBox();
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}
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private String codeToName(int code) throws IOException {
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String name = getEncoding().getName(code);
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return getNameInFont(name);
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}
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/**
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* Maps a PostScript glyph name to the name in the underlying font, for example when
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* using a TTF font we might map "W" to "uni0057".
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*/
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private String getNameInFont(String name) throws IOException {
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if (isEmbedded() || genericFont.hasGlyph(name)) {
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return name;
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} else {
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// try alternative name
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String altName = ALT_NAMES.get(name);
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if (altName != null && !name.equals(".notdef") && genericFont.hasGlyph(altName)) {
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return altName;
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} else {
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// try unicode name
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String unicodes = getGlyphList().toUnicode(name);
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if (unicodes != null && unicodes.length() == 1) {
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String uniName = getUniNameOfCodePoint(unicodes.codePointAt(0));
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if (genericFont.hasGlyph(uniName)) {
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return uniName;
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}
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}
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}
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}
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return ".notdef";
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}
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@Override
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public GeneralPath getPath(String name) throws IOException {
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// Acrobat does not draw .notdef for Type 1 fonts, see PDFBOX-2421
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// I suspect that it does do this for embedded fonts though, but this is untested
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if (name.equals(".notdef") && !isEmbedded) {
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return new GeneralPath();
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} else {
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return genericFont.getPath(getNameInFont(name));
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}
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}
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@Override
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public boolean hasGlyph(String name) throws IOException {
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return genericFont.hasGlyph(getNameInFont(name));
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}
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@Override
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public final Matrix getFontMatrix() {
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if (fontMatrix == null) {
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// PDF specified that Type 1 fonts use a 1000upem matrix, but some fonts specify
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// their own custom matrix anyway, for example PDFBOX-2298
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List<Number> numbers = null;
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try {
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numbers = genericFont.getFontMatrix();
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} catch (IOException e) {
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fontMatrix = DEFAULT_FONT_MATRIX;
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}
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if (numbers != null && numbers.size() == 6) {
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fontMatrix = new Matrix(
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numbers.get(0).floatValue(), numbers.get(1).floatValue(),
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numbers.get(2).floatValue(), numbers.get(3).floatValue(),
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numbers.get(4).floatValue(), numbers.get(5).floatValue());
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} else {
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return super.getFontMatrix();
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}
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}
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return fontMatrix;
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}
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@Override
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public boolean isDamaged() {
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return isDamaged;
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}
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}
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@ -263,7 +263,7 @@ public class TestDocumentResource extends BaseJerseyTest {
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.cookie(TokenBasedSecurityFilter.COOKIE_NAME, document1Token)
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.post(Entity.form(new Form()
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.param("title", "My new super document 1")
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.param("description", "My new super description for document\r\n\u00A0 1")
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.param("description", "My new super description for document\r\n\u00A0\u0009 1")
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.param("subject", "My new subject for document 1")
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.param("identifier", "My new identifier for document 1")
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.param("publisher", "My new publisher for document 1")
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