public override void CalcHashes(Hashes hashFlags, Validations validationFlags)
{
if ((hashFlags & Hashes.Intrinsic) != 0 && Data.BadCrcCount == null)
{
Data.BadCrcCount = 0;
var hasher = new Crc32rHasher();
int pos = 12;
for (int ix = 0; ix < Data.Chunks.Items.Count; ++ix)
{
PngChunk chunk = Data.Chunks.Items[ix];
hasher.Append(Data.fBuf, pos, (int)chunk.Size + 4);
byte[] hash = hasher.GetHashAndReset();
UInt32 actualCRC = BitConverter.ToUInt32(hash, 0);
ChunksModel.SetActualCRC(ix, actualCRC);
if (actualCRC != chunk.StoredCRC)
{
++Data.BadCrcCount;
}
pos += (int)chunk.Size + 12;
}
var sb = new StringBuilder();
sb.Append(Data.Chunks.Items.Count - Data.BadCrcCount);
sb.Append(" of ");
sb.Append(Data.Chunks.Items.Count);
sb.Append(" CRC checks successful.");
IssueModel.Add(sb.ToString(), Data.BadCrcCount == 0? Severity.Noise : Severity.Error);
}
base.CalcHashes(hashFlags, validationFlags);
}
public override void CalcHashes(Hashes hashFlags, Validations validationFlags)
{
if (Data.Issues.HasFatal)
{
return;
}
if ((hashFlags & Hashes.Intrinsic) != 0 && Data.History != null && Data.History.ActualCRC == null)
{
var hasher = new Crc32rHasher();
hasher.Append(Data.fbs, 0, (int)Data.mediaPosition, (int)Data.mediaPosition + 8, Data.FileSize - Data.mediaPosition - 8);
byte[] hash = hasher.GetHashAndReset();
HistoryModel.SetActualSelfCRC(BitConverter.ToUInt32(hash, 0));
if (Data.History.ActualCRC == Data.History.StoredCRC)
{
IssueModel.Add("Self-CRC check successful.", Severity.Noise);
}
else
{
IssueModel.Add("Self-CRC mismatch, file has been modified.");
}
}
base.CalcHashes(hashFlags, validationFlags);
}
public override void CalcHashes(Hashes hashFlags, Validations validationFlags)
{
if (Data.Issues.HasFatal)
{
return;
}
if ((hashFlags & Hashes.Intrinsic) != 0)
{
Data.badCrcCount = 0;
foreach (var master in Data.layout)
{
foreach (var cx in master.GetNodeTraces("CRC-32"))
{
var top = cx.Peek();
var node = top.Node.Nodes[top.Index] as EbmlNodeCRC;
if (node.Count > 0)
{
var hasher = new Crc32rHasher();
hasher.Append(Data.fbs, node.Start, node.Count);
var hash = hasher.GetHashAndReset();
node.ActualCRC32 = BitConverter.ToUInt32(hash, 0);
if (node.StoredCRC32 != node.ActualCRC32)
{
++Data.badCrcCount;
}
}
}
}
}
base.CalcHashes(hashFlags, validationFlags);
}
public override void CalcHashes(Hashes hashFlags, Validations validationFlags)
{
if (Data.Issues.HasFatal)
{
return;
}
if ((hashFlags & Hashes.Intrinsic) != 0 && Data.badCrcCount == null)
{
Data.badCrcCount = 0;
foreach (var master in Data.layout)
{
foreach (var cx in master.GetNodeTraces("CRC-32"))
{
var top = cx.Peek();
var node = top.Node.Nodes[top.Index] as EbmlNodeCRC;
if (node.Count > 0)
{
var hasher = new Crc32rHasher();
hasher.Append(Data.fbs, node.Start, node.Count);
var hash = hasher.GetHashAndReset();
node.ActualCRC32 = BitConverter.ToUInt32(hash, 0);
if (node.StoredCRC32 != node.ActualCRC32)
{
++Data.badCrcCount;
}
}
}
}
if (Data.CrcCount > 0)
{
if (Data.badCrcCount == 0)
{
Data.CdIssue = IssueModel.Add("CRC checks successful.", Severity.Noise, IssueTags.Success);
}
else
{
Data.CdIssue = IssueModel.Add("CRC check failure.", Severity.Error, IssueTags.Failure);
}
}
}
base.CalcHashes(hashFlags, validationFlags);
}
public override void CalcHashes(Hashes hashFlags, Validations validationFlags)
{
if (IssueModel.Data.HasFatal)
{
return;
}
if ((hashFlags & Hashes.PcmMD5) != 0 && Data.actualMediaMD5 == null)
{
try
{
var hasher = new Md5Hasher();
hasher.Append(Data.fbs, Data.mediaPosition, Data.MediaCount);
Data.actualMediaMD5 = hasher.GetHashAndReset();
}
catch (EndOfStreamException)
{
IssueModel.Add("File truncated near audio.", Severity.Fatal);
}
}
if ((hashFlags & Hashes.PcmCRC32) != 0 && Data.ActualCRC32 == null)
{
try
{
var hasher = new Crc32rHasher();
hasher.Append(Data.fbs, Data.mediaPosition, Data.MediaCount);
var hash = hasher.GetHashAndReset();
Data.ActualCRC32 = BitConverter.ToUInt32(hash, 0);
}
catch (EndOfStreamException)
{
IssueModel.Add("File truncated near audio.", Severity.Fatal);
}
}
base.CalcHashes(hashFlags, validationFlags);
}
public override void CalcHashes(Hashes hashFlags, Validations validationFlags)
{
if (Data.Issues.HasFatal)
{
return;
}
if ((hashFlags & Hashes.Intrinsic) != 0 && Data.ActualAudioHeaderCRC8 == null)
{
var hasher1 = new Crc8Hasher();
hasher1.Append(Data.aHdr);
byte[] hash1 = hasher1.GetHashAndReset();
Data.ActualAudioHeaderCRC8 = hash1[0];
try
{
var hasher2 = new Crc16nHasher();
hasher2.Append(Data.fbs, Data.mediaPosition, Data.FileSize - Data.mediaPosition - 2);
byte[] hash2 = hasher2.GetHashAndReset();
Data.ActualAudioBlockCRC16 = BitConverter.ToUInt16(hash2, 0);
}
catch (EndOfStreamException ex)
{
IssueModel.Add("Read failed while checking audio CRC: " + ex.Message, Severity.Fatal);
return;
}
if (!Data.IsBadDataCRC && !Data.IsBadHeaderCRC)
{
Data.ChIssue = Data.CdIssue = IssueModel.Add("CRC checks successful on audio header and data.", Severity.Noise, IssueTags.Success);
}
else
{
if (Data.IsBadHeaderCRC)
{
Data.ChIssue = IssueModel.Add("CRC-8 check failed on audio header.", Severity.Error, IssueTags.Failure);
}
else
{
Data.ChIssue = IssueModel.Add("CRC-8 check successful on audio header.", Severity.Noise, IssueTags.Success);
}
if (Data.IsBadDataCRC)
{
Data.CdIssue = IssueModel.Add("CRC-16 check failed on audio data.", Severity.Error, IssueTags.Failure);
}
else
{
Data.CdIssue = IssueModel.Add("CRC-16 check successful on audio data.", Severity.Noise, IssueTags.Success);
}
}
}
if ((hashFlags & Hashes.PcmMD5) != 0 && Data.actualAudioDataMD5 == null)
{
Process px = null;
try
{ px = StartFlac(Data.Path); }
catch (Exception ex)
{ IssueModel.Add("flac executable failed with '" + ex.Message.Trim(null) + "'."); }
if (px != null)
{
using (var br = new BinaryReader(px.StandardOutput.BaseStream))
{
try
{
var hasher = new Md5Hasher();
hasher.Append(br);
var hash = hasher.GetHashAndReset();
Data.actualAudioDataMD5 = hash;
}
catch (EndOfStreamException ex)
{ IssueModel.Add("Read failed while verifying audio MD5: " + ex.Message, Severity.Fatal); }
if (Data.IsBadDataMD5)
{
Data.CmIssue = IssueModel.Add("MD5 check failed on audio data.", Severity.Error, IssueTags.Failure);
}
else
{
Data.CmIssue = IssueModel.Add("MD5 check successful on audio data.", Severity.Noise, IssueTags.Success);
}
}
}
}
if ((hashFlags & (Hashes.PcmCRC32 | Hashes._FlacMatch)) != 0 && Data.ActualPcmCRC32 == null)
{
Process px = null;
try
{ px = StartFlac(Data.Path); }
catch (Exception ex)
{ IssueModel.Add("flac executable failed with '" + ex.Message.Trim(null) + "'."); }
if (px != null)
{
using (var br = new BinaryReader(px.StandardOutput.BaseStream))
{
var hasher = new Crc32rHasher();
hasher.Append(br);
byte[] hash = hasher.GetHashAndReset();
Data.ActualPcmCRC32 = BitConverter.ToUInt32(hash, 0);
}
}
}
if ((hashFlags & (Hashes._FlacTags)) != 0)
{
TagCheckNumber("TRACKNUMBER");
TagCheckNumber("TRACKTOTAL", optional: true);
TagCheckNumber("DISCNUMBER", true);
TagCheckNumber("DISCTOTAL", true);
TagCheckDate("DATE");
TagCheckDate("RELEASE DATE", optional: true);
TagCheckDate("ORIGINAL RELEASE DATE", true);
TagCheckText("TITLE");
TagCheckText("ARTIST");
TagCheckText("ALBUM");
TagCheckText("ALBUMARTIST", optional: true);
TagCheckText("ALBUMARTISTSORTORDER", true);
TagCheckText("ORGANIZATION", true);
TagCheckText("BARCODE", true);
TagCheckText("CATALOGNUMBER", true);
}
base.CalcHashes(hashFlags, validationFlags);
}
public void WriteFile(string generator, Encoding cp)
{
using (var ms = new MemoryStream())
{
var bb = cp.GetBytes("; generated by " + generator + Environment.NewLine);
ms.Write(bb, 0, bb.Length);
var crcPosition = (int)ms.Length + 2;
if (HistoryModel != null)
{
bb = cp.GetBytes("; 00000000 do not modify" + Environment.NewLine);
ms.Write(bb, 0, bb.Length);
bb = cp.GetBytes(";" + Environment.NewLine);
ms.Write(bb, 0, bb.Length);
foreach (var historyItem in Data.History.Comment)
{
var lx = "; " + historyItem + Environment.NewLine;
bb = cp.GetBytes(lx);
ms.Write(bb, 0, bb.Length);
}
}
bb = cp.GetBytes(";" + Environment.NewLine);
ms.Write(bb, 0, bb.Length);
foreach (var hashedItem in Data.HashedFiles.Items)
{
if (hashedItem.ActualHash != null)
{
bb = cp.GetBytes(hashedItem.ActualHashToHex.ToLower() + ' ' + GetStyleChar(hashedItem.Style) + hashedItem.FileName + Environment.NewLine);
ms.Write(bb, 0, bb.Length);
}
}
if (HistoryModel != null)
{
// Calculate self-CRC.
var hasher = new Crc32rHasher();
hasher.Append(ms, 0, crcPosition, crcPosition + 8, ms.Length - crcPosition - 8);
UInt32 crc = BitConverter.ToUInt32(hasher.GetHashAndReset(), 0);
HistoryModel.SetActualSelfCRC(crc);
HistoryModel.SetStoredSelfCRC(crc);
bb = cp.GetBytes($"{Data.History.ActualCRC:X8}");
ms.Seek(crcPosition, SeekOrigin.Begin);
ms.Write(bb, 0, bb.Length);
HistoryModel.SetIsDirty(false);
}
Data.fBuf = ms.ToArray();
ms.Seek(0, SeekOrigin.Begin);
Data.fbs.Position = 0;
ms.CopyTo(Data.fbs);
Data.fbs.SetLength(Data.fbs.Position);
Data.mediaPosition = crcPosition;
ResetFile();
for (int ix = 0; ix < Data.HashedFiles.Items.Count; ++ix)
{
HashedModel.SetOldFileName(ix, null);
}
}
Data.NotifyPropertyChanged(null);
}
public override void CalcHashes(Hashes hashFlags, Validations validationFlags)
{
if (Data.Issues.HasFatal)
{
return;
}
if ((hashFlags & Hashes.Intrinsic) != 0)
{
if (Data.ActualAudioHeaderCRC8 == null)
{
var hasher = new Crc8Hasher();
hasher.Append(Data.aHdr);
var hash = hasher.GetHashAndReset();
Data.ActualAudioHeaderCRC8 = hash[0];
if (Data.IsBadHeader)
{
IssueModel.Add("CRC-8 check failed on audio header.");
}
}
if (Data.ActualAudioBlockCRC16 == null)
{
try
{
var hasher = new Crc16nHasher();
hasher.Append(Data.fbs, Data.mediaPosition, Data.FileSize - Data.mediaPosition - 2);
var hash = hasher.GetHashAndReset();
Data.ActualAudioBlockCRC16 = BitConverter.ToUInt16(hash, 0);
}
catch (EndOfStreamException ex)
{
IssueModel.Add("Read failed while verifying audio CRC: " + ex.Message, Severity.Fatal);
return;
}
}
if (Data.IsBadDataCRC16)
{
IssueModel.Add("CRC-16 check failed on audio data.");
}
else
if (Data.IsBadHeader)
{
IssueModel.Add("CRC-16 check successful.", Severity.Advisory);
}
else
{
IssueModel.Add("CRC-8, CRC-16 checks successful.", Severity.Noise);
}
}
#if !NETFX_CORE
if ((hashFlags & Hashes.PcmMD5) != 0 && Data.actualAudioDataMD5 == null)
{
Process px = null;
try
{ px = StartFlac(Data.Path); }
catch (Exception ex)
{ IssueModel.Add("flac executable failed with '" + ex.Message.Trim(null) + "'."); }
if (px != null)
{
using (var br = new BinaryReader(px.StandardOutput.BaseStream))
{
try
{
var hasher = new Md5Hasher();
hasher.Append(br);
var hash = hasher.GetHashAndReset();
Data.actualAudioDataMD5 = hash;
}
catch (EndOfStreamException ex)
{ IssueModel.Add("Read failed while verifying audio MD5: " + ex.Message, Severity.Fatal); }
if (Data.IsBadDataMD5)
{
IssueModel.Add("MD5 check failed on audio data.");
}
else
{
IssueModel.Add("MD5 check successful.", Severity.Noise);
}
}
}
}
if ((hashFlags & Hashes.PcmCRC32) != 0 && Data.ActualPcmCRC32 == null)
{
Process px = null;
try
{ px = StartFlac(Data.Path); }
catch (Exception ex)
{ IssueModel.Add("flac executable failed with '" + ex.Message.Trim(null) + "'."); }
if (px != null)
{
using (var br = new BinaryReader(px.StandardOutput.BaseStream))
{
var hasher = new Crc32rHasher();
hasher.Append(br);
var hash = hasher.GetHashAndReset();
Data.ActualPcmCRC32 = BitConverter.ToUInt32(hash, 0);
}
}
}
#endif
base.CalcHashes(hashFlags, validationFlags);
}
