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PatchReader.cs
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PatchReader.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.Windows.Forms;
namespace Launcher
{
class PatchReader
{
public static double version = 1.0;
public static List<Patch> readPatches(string fileName)
{
List<Patch> patches = new List<Patch>();
using (BinaryReader reader = new BinaryReader(new FileStream(fileName, FileMode.Open)))
{
if (!verifyVersion(reader)) return null;
int patchesToRead = reader.ReadInt32();
for (int i = 0; i < patchesToRead; i++)
{
Patch patch = new Patch();
patch.fileName = reader.ReadString();
int bytesToRead = reader.ReadInt32();
patch.md5Hash = reader.ReadBytes(bytesToRead);
patches.Add(patch);
}
}
return patches;
}
private static bool verifyVersion(BinaryReader reader)
{
double serverDataVersion = reader.ReadDouble();
if (serverDataVersion != version)
{
if (serverDataVersion > version)
MessageBox.Show($"Patch reader and data version mismatch!\nPatch file supports a newer version of the launcher\nData version: {serverDataVersion} : Reader Version: {version}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
else if (serverDataVersion < version)
MessageBox.Show($"Patch reader and data version mismatch!\nPatch file supports a older version of the launcher\nData version: {serverDataVersion} : Reader Version: {version}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return false;
}
return true;
}
}
}