private static void ComputeAndWriteChecksum(CanvasDocument app, ChecksumMaker checksum, ZipArchive z, ErrorContainer errors, bool isValidation)
{
var hash = checksum.GetChecksum();
if (app._checksum != null && hash.wholeChecksum != app._checksum.ClientStampedChecksum)
{
// These warnings are Debug only. Throwing a bunch of warning messages at the customer could lead to them ignoring real errors.
#if DEBUG
if (app._checksum.ClientPerFileChecksums != null)
{
foreach (var file in app._checksum.ClientPerFileChecksums)
{
if (!hash.perFileChecksum.TryGetValue(file.Key, out var fileChecksum))
{
errors.ChecksumMismatch("Missing file " + file.Key);
}
else if (fileChecksum != file.Value)
{
errors.ChecksumMismatch($"File {file.Key} checksum does not match on extract");
}
}
foreach (var file in hash.perFileChecksum)
{
if (!app._checksum.ClientPerFileChecksums.ContainsKey(file.Key))
{
errors.ChecksumMismatch("Extra file " + file.Key);
}
}
}
#endif
#if !DEBUG
// These are the non-debug warnings, if it's unpack this was a serious error, on -pack it's most likely not
if (isValidation)
{
errors.PostUnpackValidationFailed();
throw new DocumentException();
}
#endif
errors.ChecksumMismatch("Checksum indicates that sources have been edited since they were unpacked. If this was intentional, ignore this warning.");
}
var checksumJson = new ChecksumJson
{
ClientStampedChecksum = hash.wholeChecksum,
ClientPerFileChecksums = hash.perFileChecksum,
ServerStampedChecksum = app._checksum?.ServerStampedChecksum,
ServerPerFileChecksums = app._checksum?.ServerPerFileChecksums,
};
var entry = ToFile(FileKind.Checksum, checksumJson);
var e = z.CreateEntry(entry.Name.ToMsAppPath());
using (var dest = e.Open())
{
dest.Write(entry.RawBytes, 0, entry.RawBytes.Length);
}
}
