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Create and use Hashfile serializer

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This commit is contained in:
Matt Nadareski
2023-07-28 21:34:34 -04:00
parent 8cf93a4b3b
commit 5adcd5f18b
6 changed files with 1296 additions and 474 deletions
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160
SabreTools.Serialization/Hashfile.Deserializer.cs Normal file
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using SabreTools.Core;
namespace SabreTools.Serialization
{
/// <summary>
/// Deserializer for hashfile variants
/// </summary>
public partial class Hashfile
{
/// <summary>
/// Deserializes a hashfile variant to the defined type
/// </summary>
/// <param name="path">Path to the file to deserialize</param>
/// <param name="hash">Hash corresponding to the hashfile variant</param>
/// <returns>Deserialized data on success, null on failure</returns>
public static Models.Hashfile.Hashfile? Deserialize(string path, Hash hash)
{
try
{
using var stream = PathProcessor.OpenStream(path);
return Deserialize(stream, hash);
}
catch
{
// TODO: Handle logging the exception
return default;
}
}
/// <summary>
/// Deserializes a hashfile variant in a stream to the defined type
/// </summary>
/// <param name="stream">Stream to deserialize</param>
/// <param name="hash">Hash corresponding to the hashfile variant</param>
/// <returns>Deserialized data on success, null on failure</returns>
public static Models.Hashfile.Hashfile? Deserialize(Stream? stream, Hash hash)
{
try
{
// If the stream is null
if (stream == null)
return default;
// Setup the reader and output
var reader = new StreamReader(stream);
var dat = new Models.Hashfile.Hashfile();
var additional = new List<string>();
// Loop through the rows and parse out values
var hashes = new List<object>();
while (!reader.EndOfStream)
{
// Read and split the line
string? line = reader.ReadLine();
string[]? lineParts = line?.Split(' ', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
if (lineParts == null)
continue;
// Parse the line into a hash
switch (hash)
{
case Hash.CRC:
var sfv = new Models.Hashfile.SFV
{
File = string.Join(" ", lineParts[..^1]),
Hash = string.Join(" ", lineParts[^1]),
};
hashes.Add(sfv);
break;
case Hash.MD5:
var md5 = new Models.Hashfile.MD5
{
Hash = lineParts[0],
File = string.Join(" ", lineParts[1..]),
};
hashes.Add(md5);
break;
case Hash.SHA1:
var sha1 = new Models.Hashfile.SHA1
{
Hash = lineParts[0],
File = string.Join(" ", lineParts[1..]),
};
hashes.Add(sha1);
break;
case Hash.SHA256:
var sha256 = new Models.Hashfile.SHA256
{
Hash = lineParts[0],
File = string.Join(" ", lineParts[1..]),
};
hashes.Add(sha256);
break;
case Hash.SHA384:
var sha384 = new Models.Hashfile.SHA384
{
Hash = lineParts[0],
File = string.Join(" ", lineParts[1..]),
};
hashes.Add(sha384);
break;
case Hash.SHA512:
var sha512 = new Models.Hashfile.SHA512
{
Hash = lineParts[0],
File = string.Join(" ", lineParts[1..]),
};
hashes.Add(sha512);
break;
case Hash.SpamSum:
var spamSum = new Models.Hashfile.SpamSum
{
Hash = lineParts[0],
File = string.Join(" ", lineParts[1..]),
};
hashes.Add(spamSum);
break;
}
}
// Assign the hashes to the hashfile and return
switch (hash)
{
case Hash.CRC:
dat.SFV = hashes.Cast<Models.Hashfile.SFV>().ToArray();
break;
case Hash.MD5:
dat.MD5 = hashes.Cast<Models.Hashfile.MD5>().ToArray();
break;
case Hash.SHA1:
dat.SHA1 = hashes.Cast<Models.Hashfile.SHA1>().ToArray();
break;
case Hash.SHA256:
dat.SHA256 = hashes.Cast<Models.Hashfile.SHA256>().ToArray();
break;
case Hash.SHA384:
dat.SHA384 = hashes.Cast<Models.Hashfile.SHA384>().ToArray();
break;
case Hash.SHA512:
dat.SHA512 = hashes.Cast<Models.Hashfile.SHA512>().ToArray();
break;
case Hash.SpamSum:
dat.SpamSum = hashes.Cast<Models.Hashfile.SpamSum>().ToArray();
break;
}
dat.ADDITIONAL_ELEMENTS = additional.ToArray();
return dat;
}
catch
{
// TODO: Handle logging the exception
return default;
}
}
}
}