public void TestFillFields()
{
String TestData =
"0F 02 " + // options
"11 F1 " + // record id
"00 00 00 00"; // remaining bytes
UnknownEscherRecord r = new UnknownEscherRecord();
EscherRecordFactory factory = new DefaultEscherRecordFactory();
r.FillFields(HexRead.ReadFromString(TestData), factory);
Assert.AreEqual(0x020F, r.Options);
Assert.AreEqual(unchecked((short)0xF111), r.RecordId);
Assert.IsTrue(r.IsContainerRecord);
Assert.AreEqual(8, r.RecordSize);
Assert.AreEqual(0, r.ChildRecords.Count);
Assert.AreEqual(0, r.Data.Length);
TestData =
"00 02 " + // options
"11 F1 " + // record id
"04 00 00 00 " + // remaining bytes
"01 02 03 04";
r = new UnknownEscherRecord();
r.FillFields(HexRead.ReadFromString(TestData), factory);
Assert.AreEqual(0x0200, r.Options);
Assert.AreEqual(unchecked((short)0xF111), r.RecordId);
Assert.AreEqual(12, r.RecordSize);
Assert.IsFalse(r.IsContainerRecord);
Assert.AreEqual(0, r.ChildRecords.Count);
Assert.AreEqual(4, r.Data.Length);
Assert.AreEqual(1, r.Data[0]);
Assert.AreEqual(2, r.Data[1]);
Assert.AreEqual(3, r.Data[2]);
Assert.AreEqual(4, r.Data[3]);
TestData =
"0F 02 " + // options
"11 F1 " + // record id
"08 00 00 00 " + // remaining bytes
"00 02 " + // options
"FF FF " + // record id
"00 00 00 00"; // remaining bytes
r = new UnknownEscherRecord();
r.FillFields(HexRead.ReadFromString(TestData), factory);
Assert.AreEqual(0x020F, r.Options);
Assert.AreEqual(unchecked((short)0xF111), r.RecordId);
Assert.AreEqual(8, r.RecordSize);
Assert.IsTrue(r.IsContainerRecord);
Assert.AreEqual(1, r.ChildRecords.Count);
Assert.AreEqual(unchecked((short)0xFFFF), r.GetChild(0).RecordId);
}
/// <summary>
/// Decodes the escher stream from a byte array and dumps the results to
/// a print stream.
/// </summary>
/// <param name="data">The data array containing the escher records.</param>
/// <param name="offset">The starting offset within the data array.</param>
/// <param name="size">The number of bytes to Read.</param>
public void Dump(byte[] data, int offset, int size)
{
IEscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
int pos = offset;
while (pos < offset + size)
{
EscherRecord r = recordFactory.CreateRecord(data, pos);
int bytesRead = r.FillFields(data, pos, recordFactory);
Console.WriteLine(r.ToString());
pos += bytesRead;
}
}
private void FillEscherRecords(byte[] data, int offset, int size)
{
IEscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
int pos = offset;
while (pos < offset + size)
{
EscherRecord r = recordFactory.CreateRecord(data, pos);
escherRecords.Add(r);
int bytesRead = r.FillFields(data, pos, recordFactory);
pos += bytesRead + 1; // There Is an empty byte between each top-level record in a Word doc
}
}
/// <summary>
/// Decodes the escher stream from a byte array and dumps the results to
/// a print stream.
/// </summary>
/// <param name="data">The data array containing the escher records.</param>
/// <param name="offset">The starting offset within the data array.</param>
/// <param name="size">The number of bytes to Read.</param>
public void Dump(byte[] data, int offset, int size)
{
IEscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
int pos = offset;
while (pos < offset + size)
{
EscherRecord r = recordFactory.CreateRecord(data, pos);
int bytesRead = r.FillFields(data, pos, recordFactory);
Console.WriteLine(r.ToString());
pos += bytesRead;
}
}
private EscherBlipRecord GetBitmapRecord(int bitmapIndex)
{
List<EscherContainerRecord> bContainers = _escherRecordHolder
.GetBStoreContainers();
if (bContainers == null || bContainers.Count != 1)
return null;
EscherContainerRecord bContainer = bContainers[0];
IList bitmapRecords = bContainer.ChildRecords;
if (bitmapRecords.Count < bitmapIndex)
return null;
EscherRecord imageRecord = (EscherRecord)bitmapRecords[bitmapIndex - 1];
if (imageRecord is EscherBlipRecord)
{
return (EscherBlipRecord)imageRecord;
}
if (imageRecord is EscherBSERecord)
{
EscherBSERecord bseRecord = (EscherBSERecord)imageRecord;
EscherBlipRecord blip = bseRecord.BlipRecord;
if (blip != null)
{
return blip;
}
if (bseRecord.Offset > 0)
{
/*
* Blip stored in delay stream, which in a word doc, is the main
* stream
*/
EscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
EscherRecord record = recordFactory.CreateRecord(_mainStream,
bseRecord.Offset);
if (record is EscherBlipRecord)
{
record.FillFields(_mainStream, bseRecord.Offset,
recordFactory);
return (EscherBlipRecord)record;
}
}
}
return null;
}
public void TestFillFields()
{
IEscherRecordFactory f = new DefaultEscherRecordFactory();
byte[] data = HexRead.ReadFromString("0F 02 11 F1 00 00 00 00");
EscherRecord r = f.CreateRecord(data, 0);
r.FillFields(data, 0, f);
Assert.IsTrue(r is EscherContainerRecord);
Assert.AreEqual((short)0x020F, r.Options);
Assert.AreEqual(unchecked((short)0xF111), r.RecordId);
data = HexRead.ReadFromString("0F 02 11 F1 08 00 00 00" +
" 02 00 22 F2 00 00 00 00");
r = f.CreateRecord(data, 0);
r.FillFields(data, 0, f);
EscherRecord c = r.GetChild(0);
Assert.IsFalse(c is EscherContainerRecord);
Assert.AreEqual(unchecked((short)0x0002), c.Options);
Assert.AreEqual(unchecked((short)0xF222), c.RecordId);
}
private void ConvertToEscherRecords(int offset, int size, byte[] data)
{
escherRecords.Clear();
IEscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
int pos = offset;
while (pos < offset + size)
{
EscherRecord r = recordFactory.CreateRecord(data, pos);
int bytesRead = r.FillFields(data, pos, recordFactory);
escherRecords.Add(r);
pos += bytesRead;
}
}
public void TestIncompleteData()
{
//EscherDgContainer and EscherSpgrContainer length exceeds the actual length of the data
String hex =
" 0F 00 02 F0 30 03 00 00 10 00 08 F0 08 00 00 " +
" 00 07 00 00 00 B2 04 00 00 0F 00 03 F0 18 03 00 " +
" 00 0F 00 04 F0 28 00 00 00 01 00 09 F0 10 00 00 " +
" 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 " +
" 00 02 00 0A F0 08 00 00 00 00 04 00 00 05 00 00 " +
" 00 0F 00 04 F0 74 00 00 00 92 0C 0A F0 08 00 00 " +
" 00 AD 04 00 00 00 0A 00 00 63 00 0B F0 3A 00 00 " +
" 00 7F 00 04 01 E5 01 BF 00 08 00 08 00 81 01 4E " +
" 00 00 08 BF 01 10 00 10 00 80 C3 16 00 00 00 BF " +
" 03 00 00 02 00 44 00 69 00 61 00 67 00 72 00 61 " +
" 00 6D 00 6D 00 20 00 32 00 00 00 00 00 10 F0 12 " +
" 00 00 00 00 00 05 00 00 00 01 00 00 00 0B 00 00 " +
" 00 0F 00 66 00 00 00 11 F0 00 00 00 00 ";
byte[] buffer = HexRead.ReadFromString(hex);
List<EscherRecord> records = new List<EscherRecord>();
IEscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
int pos = 0;
while (pos < buffer.Length)
{
EscherRecord r = recordFactory.CreateRecord(buffer, pos);
int bytesRead = r.FillFields(buffer, pos, recordFactory);
records.Add(r);
pos += bytesRead;
}
Assert.AreEqual(buffer.Length, pos, "data was not fully Read");
// serialize to byte array
MemoryStream out1 = new MemoryStream();
try
{
foreach (EscherRecord r in records)
{
byte[] data = r.Serialize();
out1.Write(data, 0, data.Length);
}
}
catch (IOException e)
{
throw new RuntimeException(e);
}
Assert.AreEqual(HexDump.ToHex(buffer, 10), HexDump.ToHex(out1.ToArray(), 10));
}
/**
* Performs a recursive search for pictures in the given list of escher records.
*
* @param escherRecords the escher records.
* @param pictures the list to populate with the pictures.
*/
private void SearchForPictures(IList escherRecords, List<Picture> pictures)
{
foreach (EscherRecord escherRecord in escherRecords)
{
if (escherRecord is EscherBSERecord)
{
EscherBSERecord bse = (EscherBSERecord)escherRecord;
EscherBlipRecord blip = bse.BlipRecord;
if (blip != null)
{
pictures.Add(new Picture(blip.PictureData));
}
else if (bse.Offset > 0)
{
// Blip stored in delay stream, which in a word doc, is the main stream
EscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
EscherRecord record = recordFactory.CreateRecord(_mainStream, bse.Offset);
if (record is EscherBlipRecord)
{
record.FillFields(_mainStream, bse.Offset, recordFactory);
blip = (EscherBlipRecord)record;
pictures.Add(new Picture(blip.PictureData));
}
}
}
// Recursive call.
SearchForPictures(escherRecord.ChildRecords, pictures);
}
}
/**
* Performs a recursive search for pictures in the given list of escher records.
*
* @param escherRecords the escher records.
* @param pictures the list to populate with the pictures.
*/
private void SearchForPictures(IList escherRecords, List<Picture> pictures)
{
foreach (EscherRecord escherRecord in escherRecords)
{
if (escherRecord is EscherBSERecord)
{
EscherBSERecord bse = (EscherBSERecord)escherRecord;
EscherBlipRecord blip = bse.BlipRecord;
if (blip != null)
{
pictures.Add(new Picture(blip.PictureData));
}
else if (bse.Offset > 0)
{
try
{
// Blip stored in delay stream, which in a word doc, is the main stream
IEscherRecordFactory recordFactory = new DefaultEscherRecordFactory();
EscherRecord record = recordFactory.CreateRecord(_mainStream, bse.Offset);
if (record is EscherBlipRecord)
{
record.FillFields(_mainStream, bse.Offset, recordFactory);
blip = (EscherBlipRecord)record;
pictures.Add(new Picture(blip.PictureData));
}
}
catch (Exception exc)
{
logger.Log(
POILogger.WARN,
"Unable to load picture from BLIB record at offset #",
bse.Offset, exc);
}
}
}
// Recursive call.
SearchForPictures(escherRecord.ChildRecords, pictures);
}
}
