Example usage for org.apache.pdfbox.cos COSStream getNameAsString

Introduction

In this page you can find the example usage for org.apache.pdfbox.cos COSStream getNameAsString.

Prototype

public String getNameAsString(String key) 

Source Link

Document

This is a convenience method that will get the dictionary object that is expected to be a name and convert it to a string.

Usage

From source file:com.aaasec.sigserv.csspsupport.pdfbox.modifications.CsCOSWriter.java

License:Apache License

/**
 * visitFromStream method comment./*from   w ww  .  j  ava2 s . c om*/
 *
 * @param obj The object that is being visited.
 *
 * @throws COSVisitorException If there is an exception while visiting this
 * object.
 *
 * @return null
 */
public Object visitFromStream(COSStream obj) throws COSVisitorException {
    InputStream input = null;
    try {
        if (willEncrypt) {
            document.getSecurityHandler().encryptStream(obj, currentObjectKey.getNumber(),
                    currentObjectKey.getGeneration());
        }

        COSObject lengthObject = null;
        // check if the length object is required to be direct, like in
        // a cross reference stream dictionary
        COSBase lengthEntry = obj.getDictionaryObject(COSName.LENGTH);
        String type = obj.getNameAsString(COSName.TYPE);
        if (lengthEntry != null && lengthEntry.isDirect() || "XRef".equals(type)) {
            // the length might be the non encoded length,
            // set the real one as direct object
            COSInteger cosInteger = COSInteger.get(obj.getFilteredLength());
            cosInteger.setDirect(true);
            obj.setItem(COSName.LENGTH, cosInteger);

        } else {
            // make the length an implicit indirect object
            // set the length of the stream and write stream dictionary
            lengthObject = new COSObject(null);

            obj.setItem(COSName.LENGTH, lengthObject);
        }
        input = obj.getFilteredStream();
        //obj.accept(this);
        // write the stream content
        visitFromDictionary(obj);
        getStandardOutput().write(STREAM);
        getStandardOutput().writeCRLF();
        byte[] buffer = new byte[1024];
        int amountRead = 0;
        int totalAmountWritten = 0;
        while ((amountRead = input.read(buffer, 0, 1024)) != -1) {
            getStandardOutput().write(buffer, 0, amountRead);
            totalAmountWritten += amountRead;
        }
        // set the length as an indirect object
        if (lengthObject != null) {
            lengthObject.setObject(COSInteger.get(totalAmountWritten));
        }
        getStandardOutput().writeCRLF();
        getStandardOutput().write(ENDSTREAM);
        getStandardOutput().writeEOL();
        return null;
    } catch (Exception e) {
        throw new COSVisitorException(e);
    } finally {
        if (input != null) {
            try {
                input.close();
            } catch (IOException e) {
                throw new COSVisitorException(e);
            }
        }
    }
}

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From source file:net.padaf.preflight.font.CompositeFontValidator.java

License:Apache License

/**
 * Standard information of a stream element will be checked by the
 * StreamHelper.//from  www .  j  a va 2 s .c  o m
 * 
 * This method checks mandatory fields of the CMap stream. This method checks
 * too if the CMap stream is damaged using the CMapParser of the fontbox api.
 * 
 * @param aCMap
 * @return
 */
private boolean processCMapAsStream(COSStream aCMap) {
    COSDocument cDoc = handler.getDocument().getDocument();

    String type = aCMap.getNameAsString(COSName.getPDFName(DICTIONARY_KEY_TYPE));
    String cmapName = aCMap.getNameAsString(COSName.getPDFName(FONT_DICTIONARY_KEY_CMAP_NAME));
    COSBase sysinfo = aCMap.getItem(COSName.getPDFName(FONT_DICTIONARY_KEY_CID_SYSINFO));
    int wmode = aCMap.getInt(COSName.getPDFName(FONT_DICTIONARY_KEY_CMAP_WMODE));
    COSBase cmapUsed = aCMap.getItem(COSName.getPDFName(FONT_DICTIONARY_KEY_CMAP_USECMAP));

    if (!FONT_DICTIONARY_VALUE_TYPE_CMAP.equals(type)) {
        // ---- CMap type is invalid
        this.fontContainer.addError(
                new ValidationError(ERROR_FONTS_CIDKEYED_CMAP_INVALID_OR_MISSING, "The CMap type is invalid"));
        return false;
    }

    // ---- check the content of the CIDSystemInfo
    if (!checkCIDSystemInfo(sysinfo, cDoc)) {
        return false;
    }

    if (cmapName == null || "".equals(cmapName) || wmode > 1) {
        this.fontContainer.addError(new ValidationError(ERROR_FONTS_CIDKEYED_CMAP_INVALID_OR_MISSING,
                "Some elements in the CMap dictionary are missing or invalid"));
        return false;
    }

    try {

        CMap fontboxCMap = new CMapParser().parse(null, aCMap.getUnfilteredStream());
        int wmValue = fontboxCMap.getWMode();
        String cmnValue = fontboxCMap.getName(); //getCmapEntry("CMapName");

        if (wmValue != wmode) {

            this.fontContainer.addError(
                    new ValidationError(ERROR_FONTS_CIDKEYED_CMAP_INVALID_OR_MISSING, "WMode is inconsistent"));
            return false;
        }

        if (!cmnValue.equals(cmapName)) {

            this.fontContainer.addError(new ValidationError(ERROR_FONTS_CIDKEYED_CMAP_INVALID_OR_MISSING,
                    "CMapName is inconsistent"));
            return false;
        }

    } catch (IOException e) {
        this.fontContainer
                .addError(new ValidationError(ERROR_FONTS_CID_CMAP_DAMAGED, "The CMap type is damaged"));
        return false;
    }

    if (cmapUsed != null) {
        return checkCMap(cmapUsed);
    }

    return true;
}

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From source file:net.padaf.preflight.font.CompositeFontValidator.java

License:Apache License

/**
 * This method return false and updates the FontContainer if the Composite
 * Font TYPE 0 or TYPE1C is damaged. This method checks the Widths
 * consistency.//from   ww w  .  j  a v a  2s.c  o  m
 * 
 * @param pfDescriptor
 * @return
 */
boolean checkFontFileElement_CIDFontType0(PDFontDescriptorDictionary pfDescriptor) throws ValidationException {
    // ---- FontFile Validation
    PDStream ff1 = pfDescriptor.getFontFile();
    PDStream ff2 = pfDescriptor.getFontFile2();
    PDStream ff3 = pfDescriptor.getFontFile3();

    boolean onlyOne = (ff1 != null && ff2 == null && ff3 == null) || (ff1 == null && ff2 != null && ff3 == null)
            || (ff1 == null && ff2 == null && ff3 != null);

    if ((ff3 == null) || !onlyOne) {
        this.fontContainer.addError(new ValidationResult.ValidationError(ERROR_FONTS_FONT_FILEX_INVALID,
                "The FontFile is invalid"));
        return false;
    }

    // ---- Stream validation should be done by the StreamValidateHelper.
    // ---- Process font specific check
    COSStream stream = ff3.getStream();
    if (stream == null) {
        this.fontContainer.addError(new ValidationResult.ValidationError(ERROR_FONTS_FONT_FILEX_INVALID,
                "The FontFile is missing"));
        this.fontContainer.setFontProgramEmbedded(false);
        return false;
    }

    // ---- Lengthx aren't mandatory for this type of font
    // ---- But the Subtype is a mandatory field with specific values
    String st = stream.getNameAsString(COSName.getPDFName(DICTIONARY_KEY_SUBTYPE));
    if (!(FONT_DICTIONARY_VALUE_TYPE0C.equals(st) || FONT_DICTIONARY_VALUE_TYPE1C.equals(st))) {
        this.fontContainer.addError(new ValidationResult.ValidationError(ERROR_FONTS_FONT_FILEX_INVALID,
                "The FontFile3 stream doesn't have the right Subtype"));
        return false;
    }

    // ---- try to load the font using the java.awt.font object.
    // ---- if the font is invalid, an exception will be thrown
    try {
        CFFParser cffParser = new CFFParser();
        List<CFFFont> lCFonts = cffParser.parse(ff3.getByteArray());

        if (lCFonts == null || lCFonts.isEmpty()) {
            this.fontContainer.addError(new ValidationResult.ValidationError(ERROR_FONTS_CID_DAMAGED,
                    "The FontFile can't be read"));
            return false;
        }

        return checkCIDFontWidths(lCFonts) && checkFontFileMetaData(pfDescriptor, ff3);
    } catch (IOException e) {
        this.fontContainer.addError(
                new ValidationResult.ValidationError(ERROR_FONTS_CID_DAMAGED, "The FontFile can't be read"));
        return false;
    }
}

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From source file:net.padaf.preflight.helpers.GraphicsValidationHelper.java

License:Apache License

public List<ValidationError> validateXObject(DocumentHandler handler, COSObject cObj)
        throws ValidationException {
    XObjectValidator xObjVal = null;/*from  w  w  w  . j  a va2  s .c om*/

    // ---- According to the XObject subtype, the validation isn't processed by
    // the same Validator
    COSStream dic = (COSStream) cObj.getObject();
    String subtype = dic.getNameAsString(COSName.getPDFName(DICTIONARY_KEY_SUBTYPE));

    if (XOBJECT_DICTIONARY_VALUE_SUBTYPE_IMG.equals(subtype)) {
        xObjVal = new XObjImageValidator(handler, dic);
    } else if (XOBJECT_DICTIONARY_VALUE_SUBTYPE_FORM.equals(subtype)) {
        xObjVal = new XObjFormValidator(handler, dic);
    } else if (XOBJECT_DICTIONARY_VALUE_SUBTYPE_POSTSCRIPT.equals(subtype)) {
        xObjVal = new XObjPostscriptValidator(handler, dic);
    } else {
        throw new ValidationException("Invalid XObject subtype");
    }

    return xObjVal.validate();
}

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From source file:org.apache.padaf.preflight.font.CompositeFontValidator.java

License:Apache License

/**
 * Standard information of a stream element will be checked by the
 * StreamHelper./* w ww.jav a 2  s  .  c om*/
 * 
 * This method checks mandatory fields of the CMap stream. This method checks
 * too if the CMap stream is damaged using the CMapParser of the fontbox api.
 * 
 * @param aCMap
 * @return
 */
private boolean processCMapAsStream(COSStream aCMap) {
    COSDocument cDoc = handler.getDocument().getDocument();

    String type = aCMap.getNameAsString(COSName.getPDFName(DICTIONARY_KEY_TYPE));
    String cmapName = aCMap.getNameAsString(COSName.getPDFName(FONT_DICTIONARY_KEY_CMAP_NAME));
    COSBase sysinfo = aCMap.getItem(COSName.getPDFName(FONT_DICTIONARY_KEY_CID_SYSINFO));
    int wmode = aCMap.getInt(COSName.getPDFName(FONT_DICTIONARY_KEY_CMAP_WMODE));
    if (wmode == -1) {
        /*
         * According to the getInt javadoc, -1 is returned if there are no result.
         * In the PDF Reference v1.7 p449, we can read that Default value is 0.
         */
        wmode = FONT_DICTIONARY_DEFAULT_CMAP_WMODE;
    }
    COSBase cmapUsed = aCMap.getItem(COSName.getPDFName(FONT_DICTIONARY_KEY_CMAP_USECMAP));

    if (!FONT_DICTIONARY_VALUE_TYPE_CMAP.equals(type)) {
        // ---- CMap type is invalid
        this.fontContainer.addError(
                new ValidationError(ERROR_FONTS_CIDKEYED_CMAP_INVALID_OR_MISSING, "The CMap type is invalid"));
        return false;
    }

    // ---- check the content of the CIDSystemInfo
    if (!checkCIDSystemInfo(sysinfo, cDoc)) {
        return false;
    }

    if (cmapName == null || "".equals(cmapName) || wmode > 1) {
        this.fontContainer.addError(new ValidationError(ERROR_FONTS_CIDKEYED_CMAP_INVALID_OR_MISSING,
                "Some elements in the CMap dictionary are missing or invalid"));
        return false;
    }

    try {

        CMap fontboxCMap = new CMapParser().parse(null, aCMap.getUnfilteredStream());
        int wmValue = fontboxCMap.getWMode();
        String cmnValue = fontboxCMap.getName();

        if (wmValue != wmode) {

            this.fontContainer.addError(
                    new ValidationError(ERROR_FONTS_CIDKEYED_CMAP_INVALID_OR_MISSING, "WMode is inconsistent"));
            return false;
        }

        if (!cmnValue.equals(cmapName)) {

            this.fontContainer.addError(new ValidationError(ERROR_FONTS_CIDKEYED_CMAP_INVALID_OR_MISSING,
                    "CMapName is inconsistent"));
            return false;
        }

    } catch (IOException e) {
        this.fontContainer
                .addError(new ValidationError(ERROR_FONTS_CID_CMAP_DAMAGED, "The CMap type is damaged"));
        return false;
    }

    if (cmapUsed != null) {
        return checkCMap(cmapUsed);
    }

    return true;
}

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