Am 07.06.2017 um 19:19 schrieb Martin Lynch:
I have to check a pdf document to see if there is any javascript used in it
anywhere.
public class PrintJavaScriptFields
{
/**
* This will print all the fields from the document.
*
* @param pdfDocument The PDF to get the fields from.
*
* @throws IOException If there is an error getting the fields.
*/
public void printFields(PDDocument pdfDocument) throws IOException
{
PDDocumentCatalog docCatalog = pdfDocument.getDocumentCatalog();
PDAcroForm acroForm = docCatalog.getAcroForm();
List<PDField> fields = acroForm.getFields();
//System.out.println(fields.size() + " top-level fields were
found on the form");
for (PDField field : fields)
{
processField(field, "|--", field.getPartialName());
}
}
private void processField(PDField field, String sLevel, String
sParent) throws IOException
{
String partialName = field.getPartialName();
if (field instanceof PDTerminalField)
{
PDTerminalField termField = (PDTerminalField) field;
PDFormFieldAdditionalActions fieldActions = field.getActions();
if (fieldActions != null)
{
System.out.println(field.getFullyQualifiedName() + ": "
+ fieldActions.getClass().getSimpleName() + " js field actionS:\n" +
fieldActions.getCOSObject());
printPossibleJS(fieldActions.getK());
printPossibleJS(fieldActions.getC());
printPossibleJS(fieldActions.getF());
printPossibleJS(fieldActions.getV());
}
for (PDAnnotationWidget widgetAction : termField.getWidgets())
{
PDAction action = widgetAction.getAction();
if (action instanceof PDActionJavaScript)
{
System.out.println(field.getFullyQualifiedName() + ": " +
action.getClass().getSimpleName() + " js widget action:\n" +
action.getCOSObject());
printPossibleJS(action);
}
}
}
if (field instanceof PDNonTerminalField)
{
if (!sParent.equals(field.getPartialName()))
{
if (partialName != null)
{
sParent = sParent + "." + partialName;
}
}
//System.out.println(sLevel + sParent);
for (PDField child : ((PDNonTerminalField)
field).getChildren())
{
processField(child, "| " + sLevel, sParent);
}
}
else
{
String fieldValue = field.getValueAsString();
StringBuilder outputString = new StringBuilder(sLevel);
outputString.append(sParent);
if (partialName != null)
{
outputString.append(".").append(partialName);
}
outputString.append(" = ").append(fieldValue);
outputString.append(",
type=").append(field.getClass().getName());
//System.out.println(outputString);
}
}
private void printPossibleJS(PDAction kAction)
{
if (kAction instanceof PDActionJavaScript)
{
PDActionJavaScript jsAction = (PDActionJavaScript) kAction;
String jsString = jsAction.getAction();
if (!jsString.contains("\n"))
{
// Sonst erscheint in Netbeans nichts?!
jsString = jsString.replaceAll("\r",
"\n").replaceAll("\n\n", "\n");
}
System.out.println(jsString);
System.out.println();
}
}
/**
* This will read a PDF file and print out the form elements. <br />
* see usage() for commandline
*
* @param args command line arguments
*
* @throws IOException If there is an error importing the FDF document.
*/
public static void main(String[] args) throws IOException
{
PDDocument pdf = null;
try
{
pdf = PDDocument.load(new File(XXXXXXX));
PrintJavaScriptFields exporter = new PrintJavaScriptFields();
exporter.printFields(pdf);
}
finally
{
if (pdf != null)
{
pdf.close();
}
}
}
}
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