private static List <long> GetObjectNumbers(PdfRawStream stream)
{
var indexArray = (COSArray)stream.Dictionary.GetDictionaryObject(CosName.INDEX);
// If Index doesn't exist, we will use the default values.
if (indexArray == null)
{
indexArray = new COSArray();
indexArray.add(CosInt.Zero);
indexArray.add(stream.Dictionary.GetDictionaryObject(CosName.SIZE));
}
List <long> objNums = new List <long>();
// Populates objNums with all object numbers available
for (int i = 0; i < indexArray.Count; i += 2)
{
var longId = ((CosInt)indexArray.get(i)).AsLong();
var size = ((CosInt)indexArray.get(i + 1)).AsInt();
for (int j = 0; j < size; j++)
{
objNums.Add(longId + j);
}
}
return(objNums);
}
public COSArray Parse(IRandomAccessRead reader, CosBaseParser baseParser, CosObjectPool pool)
{
ReadHelper.ReadExpectedChar(reader, '[');
var po = new COSArray();
CosBase pbo;
ReadHelper.SkipSpaces(reader);
int i;
while (((i = reader.Peek()) > 0) && ((char)i != ']'))
{
pbo = baseParser.Parse(reader, pool);
if (pbo is CosObject)
{
// We have to check if the expected values are there or not PDFBOX-385
if (po.get(po.size() - 1) is CosInt)
{
var genNumber = (CosInt)po.remove(po.size() - 1);
if (po.get(po.size() - 1) is CosInt)
{
var number = (CosInt)po.remove(po.size() - 1);
CosObjectKey key = new CosObjectKey(number.AsLong(), genNumber.AsInt());
pbo = pool.Get(key);
}
else
{
// the object reference is somehow wrong
pbo = null;
}
}
else
{
pbo = null;
}
}
if (pbo != null)
{
po.add(pbo);
}
else
{
//it could be a bad object in the array which is just skipped
// LOG.warn("Corrupt object reference at offset " + seqSource.getPosition());
// This could also be an "endobj" or "endstream" which means we can assume that
// the array has ended.
string isThisTheEnd = ReadHelper.ReadString(reader);
reader.Unread(OtherEncodings.StringAsLatin1Bytes(isThisTheEnd));
if (string.Equals(isThisTheEnd, "endobj") || string.Equals(isThisTheEnd, "endstream"))
{
return(po);
}
}
ReadHelper.SkipSpaces(reader);
}
// read ']'
reader.Read();
ReadHelper.SkipSpaces(reader);
return(po);
}
/**
* Embeds an external file (generic - any type allowed) in the PDF.
*
* @param doc
* PDDocument to attach the file to.
* @param filename
* name of the file that will become attachment name in the PDF
* @param relationship
* how the file relates to the content, e.g. "Alternative"
* @param description
* Human-readable description of the file content
* @param subType
* type of the data e.g. could be "text/xml" - mime like
* @param data
* the binary data of the file/attachment
*/
public void PDFAttachGenericFile(PDDocument doc, String filename,
String relationship, String description, String subType, byte[] data)
{
PDComplexFileSpecification fs = new PDComplexFileSpecification();
fs.setFile(filename);
COSDictionary dict = fs.getCOSDictionary();
dict.setName("AFRelationship", relationship);
dict.setString("UF", filename);
dict.setString("Desc", description);
ByteArrayInputStream fakeFile = new ByteArrayInputStream(data);
PDEmbeddedFile ef = new PDEmbeddedFile(doc, fakeFile);
ef.setSubtype(subType);
ef.setSize(data.Length);
ef.setCreationDate(new GregorianCalendar());
ef.setModDate(GregorianCalendar.getInstance());
fs.setEmbeddedFile(ef);
// In addition make sure the embedded file is set under /UF
dict = fs.getCOSDictionary();
COSDictionary efDict = (COSDictionary)dict
.getDictionaryObject(COSName.EF);
COSBase lowerLevelFile = efDict.getItem(COSName.F);
efDict.setItem(COSName.UF, lowerLevelFile);
// now add the entry to the embedded file tree and set in the document.
PDDocumentNameDictionary names = new PDDocumentNameDictionary(
doc.getDocumentCatalog());
PDEmbeddedFilesNameTreeNode efTree = names.getEmbeddedFiles();
if (efTree == null)
{
efTree = new PDEmbeddedFilesNameTreeNode();
}
//Map<String, COSObjectable> namesMap = new HashMap<String, COSObjectable>();
// Map<String, COSObjectable> oldNamesMap = efTree.getNames();
//if (oldNamesMap != null) {
// for (String key : oldNamesMap.keySet()) {
// namesMap.put(key, oldNamesMap.get(key));
// }
//}
//efTree.setNames(namesMap);
//should be ported more exactly...
efTree.setNames(Collections.singletonMap(filename, fs));
names.setEmbeddedFiles(efTree);
doc.getDocumentCatalog().setNames(names);
// AF entry (Array) in catalog with the FileSpec
COSArray cosArray = (COSArray)doc.getDocumentCatalog()
.getCOSDictionary().getItem("AF");
if (cosArray == null)
{
cosArray = new COSArray();
}
cosArray.add(fs);
COSDictionary dict2 = doc.getDocumentCatalog().getCOSDictionary();
COSArray array = new COSArray();
array.add(fs.getCOSDictionary()); // see below
dict2.setItem("AF", array);
doc.getDocumentCatalog().getCOSDictionary().setItem("AF", cosArray);
}
