Examples with ValidationError org.apache.pdfbox.preflight.ValidationResult.ValidationError used on opensource projects

Example 11 with ValidationError

use of org.apache.pdfbox.preflight.ValidationResult.ValidationError in project pdfbox by apache.

the class PreflightParser method checkEndstreamKeyWord.

/**
 * 'endstream' must be preceded by an EOL
 *
 * @throws IOException
 */
protected void checkEndstreamKeyWord() throws IOException {
    source.seek(source.getPosition() - 10);
    if (!nextIsEOL()) {
        addValidationError(new ValidationError(ERROR_SYNTAX_STREAM_DELIMITER, "Expected 'EOL' before the endstream keyword at offset " + source.getPosition() + " but found '" + source.peek() + "'"));
    }
    String endstreamV = readString();
    if (!endstreamV.equals("endstream")) {
        addValidationError(new ValidationError(ERROR_SYNTAX_STREAM_DELIMITER, "Expected 'endstream' keyword at offset " + source.getPosition() + " but found '" + endstreamV + "'"));
    }
}

Example 12 with ValidationError

use of org.apache.pdfbox.preflight.ValidationResult.ValidationError in project pdfbox by apache.

the class PreflightParser method parseCOSString.

/**
 * Check that the hexa string contains only an even number of
 * Hexadecimal characters. Once it is done, reset the offset at the beginning of the string and
 * call {@link PDFParser#parseCOSString()}
 *
 * @return The parsed PDF string.
 *
 * @throws IOException If there is an error reading from the stream.
 */
@Override
protected COSString parseCOSString() throws IOException {
    // offset reminder
    long offset = source.getPosition();
    char nextChar = (char) source.read();
    int count = 0;
    if (nextChar == '<') {
        do {
            nextChar = (char) source.read();
            if (nextChar != '>') {
                if (isWhitespace(nextChar)) {
                    // ignore space characters
                    continue;
                }
                if (Character.digit(nextChar, 16) >= 0) {
                    count++;
                } else {
                    addValidationError(new ValidationError(ERROR_SYNTAX_HEXA_STRING_INVALID, "Hexa String must have only Hexadecimal Characters (found '" + nextChar + "') at offset " + source.getPosition()));
                    break;
                }
            }
        } while (nextChar != '>');
    }
    if (count % 2 != 0) {
        addValidationError(new ValidationError(ERROR_SYNTAX_HEXA_STRING_EVEN_NUMBER, "Hexa string shall contain even number of non white space char at offset " + source.getPosition()));
    }
    // reset the offset to parse the COSString
    source.seek(offset);
    COSString result = super.parseCOSString();
    if (result.getString().length() > MAX_STRING_LENGTH) {
        addValidationError(new ValidationError(ERROR_SYNTAX_HEXA_STRING_TOO_LONG, "Hexa string is too long at offset " + source.getPosition()));
    }
    return result;
}

Example 13 with ValidationError

use of org.apache.pdfbox.preflight.ValidationResult.ValidationError in project pdfbox by apache.

the class PreflightParser method checkPdfHeader.

/**
 * Check that the PDF header match rules of the PDF/A specification. First line (offset 0) must
 * be a comment with the PDF version (version 1.0 isn't conform to the PDF/A specification)
 * Second line is a comment with at least 4 bytes greater than 0x80
 */
protected void checkPdfHeader() {
    try {
        source.seek(0);
        String firstLine = readLine();
        if (firstLine == null || !firstLine.matches("%PDF-1\\.[1-9]")) {
            addValidationError(new ValidationError(PreflightConstants.ERROR_SYNTAX_HEADER, "First line must match %PDF-1.\\d"));
        }
        String secondLine = readLine();
        if (secondLine != null) {
            byte[] secondLineAsBytes = secondLine.getBytes(encoding.name());
            if (secondLineAsBytes.length >= 5) {
                if (secondLineAsBytes[0] != '%') {
                    addValidationError(new ValidationError(PreflightConstants.ERROR_SYNTAX_HEADER, "Second line must begin with '%' followed by at least 4 bytes greater than 127"));
                } else {
                    for (int i = 1; i < 5; ++i) {
                        byte b = secondLineAsBytes[i];
                        if ((b & 0xFF) < 0x80) {
                            addValidationError(new ValidationError(PreflightConstants.ERROR_SYNTAX_HEADER, "Second line must begin with '%' followed by at least 4 bytes greater than 127"));
                            break;
                        }
                    }
                }
            } else {
                addValidationError(new ValidationError(PreflightConstants.ERROR_SYNTAX_HEADER, "Second line must begin with '%' followed by at least 4 bytes greater than 127"));
            }
        }
        source.seek(0);
    } catch (IOException e) {
        addValidationError(new ValidationError(PreflightConstants.ERROR_SYNTAX_HEADER, "Unable to read the PDF file : " + e.getMessage(), e));
    }
}

Example 14 with ValidationError

use of org.apache.pdfbox.preflight.ValidationResult.ValidationError in project pdfbox by apache.

the class XmlResultParser method createResponseWithError.

protected void createResponseWithError(Document rdocument, String pdfType, ValidationResult result, Element preflight) {
    Element valid = rdocument.createElement("isValid");
    valid.setAttribute("type", pdfType);
    valid.setTextContent("false");
    preflight.appendChild(valid);
    // errors list
    Element errors = rdocument.createElement("errors");
    Map<ValidationError, Integer> cleaned = cleanErrorList(result.getErrorsList());
    preflight.appendChild(errors);
    int totalCount = 0;
    for (Map.Entry<ValidationError, Integer> entry : cleaned.entrySet()) {
        Element error = rdocument.createElement("error");
        int count = entry.getValue();
        error.setAttribute("count", String.format("%d", count));
        totalCount += count;
        Element code = rdocument.createElement("code");
        ValidationError ve = entry.getKey();
        code.setTextContent(ve.getErrorCode());
        error.appendChild(code);
        Element detail = rdocument.createElement("details");
        detail.setTextContent(ve.getDetails());
        error.appendChild(detail);
        if (ve.getPageNumber() != null) {
            Element page = rdocument.createElement("page");
            page.setTextContent(ve.getPageNumber().toString());
            error.appendChild(page);
        }
        errors.appendChild(error);
    }
    errors.setAttribute("count", String.format("%d", totalCount));
}

Example 15 with ValidationError

use of org.apache.pdfbox.preflight.ValidationResult.ValidationError in project pdfbox by apache.

the class AbstractProcess method addFontError.

/**
 * PDFont loads embedded fonts in its constructor so we have to handle IOExceptions
 * from PDFont and translate them into validation errors.
 */
protected void addFontError(COSDictionary dictionary, PreflightContext context, IOException e) {
    COSName type = dictionary.getCOSName(COSName.TYPE, COSName.FONT);
    if (!COSName.FONT.equals(type)) {
        addValidationError(context, new ValidationError(PreflightConstants.ERROR_FONTS_UNKNOWN_FONT_TYPE, "Expected 'Font' dictionary but found '" + type.getName() + "'"));
    }
    String fontName = "Unknown";
    if (dictionary.containsKey(COSName.BASE_FONT)) {
        fontName = dictionary.getNameAsString(COSName.BASE_FONT);
    }
    COSName subType = dictionary.getCOSName(COSName.SUBTYPE);
    if (COSName.TYPE1.equals(subType)) {
        addValidationError(context, new ValidationError(PreflightConstants.ERROR_FONTS_TYPE1_DAMAGED, "The FontFile can't be read for " + fontName + ": " + e.getMessage()));
    } else if (COSName.MM_TYPE1.equals(subType)) {
        addValidationError(context, new ValidationError(PreflightConstants.ERROR_FONTS_TYPE1_DAMAGED, "The FontFile can't be read for " + fontName + ": " + e.getMessage()));
    } else if (COSName.TRUE_TYPE.equals(subType)) {
        addValidationError(context, new ValidationError(PreflightConstants.ERROR_FONTS_TRUETYPE_DAMAGED, "The FontFile can't be read for " + fontName + ": " + e.getMessage()));
    } else if (COSName.TYPE3.equals(subType)) {
        addValidationError(context, new ValidationError(PreflightConstants.ERROR_FONTS_TYPE3_DAMAGED, "The FontFile can't be read for " + fontName + ": " + e.getMessage()));
    } else if (COSName.TYPE0.equals(subType)) {
        addValidationError(context, new ValidationError(PreflightConstants.ERROR_FONTS_CID_DAMAGED, "The FontFile can't be read for " + fontName + ": " + e.getMessage()));
    } else if (COSName.CID_FONT_TYPE0.equals(subType)) {
        addValidationError(context, new ValidationError(PreflightConstants.ERROR_FONTS_UNKNOWN_FONT_TYPE, "Unexpected CIDFontType0 descendant font for " + fontName + ": " + e.getMessage()));
    } else if (COSName.CID_FONT_TYPE2.equals(subType)) {
        addValidationError(context, new ValidationError(PreflightConstants.ERROR_FONTS_UNKNOWN_FONT_TYPE, "Unexpected CIDFontType2 descendant font for " + fontName + ": " + e.getMessage()));
    } else {
        addValidationError(context, new ValidationError(PreflightConstants.ERROR_FONTS_UNKNOWN_FONT_TYPE, "Unknown font type for " + fontName));
    }
}