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Abstract GameProcess

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This commit is contained in:
Mino 2020-03-31 12:18:02 +09:00
parent 67f4795cf6
commit 117d1dfbb2
4 changed files with 97 additions and 63 deletions
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53
Dalamud.Bootstrap/Bootstrapper.cs
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@ -54,65 +54,36 @@ namespace Dalamud.Bootstrap
// delegate Step 3 to 5 to Launch() maybe?
// Acquire the process handle and read the command line
using var process = Process.Open(pid);
using var process = GameProcess.Open(pid);
var exePath = process.GetImageFilePath();
var argument = ReadArgumentFromProcess(process);
var encryptedArgument = EncryptArgument(argument.ToString());
var newTick = (uint)Environment.TickCount;
var newKey = newTick & 0xFFFF_0000; // only the high nibble is used
var newArgument = argument
.Remove("T")
.Add("T", $"{newTick}")
.ToString();
var encryptedArgument = new EncryptedArgument(newArgument, newKey);
// TODO: launch new exe with the argument from encryptedArgument.ToString()
// TODO: we also need to figure out where the exe is located
// This is just for poc purpose.
System.Diagnostics.Process.Start(exePath, encryptedArgument.ToString());
process.Terminate();
//process.Terminate();
}
private static uint RecoverKey(Process gameProcess)
private static string EncryptArgument(string argument)
{
var createdTime = gameProcess.GetCreationTime();
var currentDt = DateTime.Now;
var currentTick = Environment.TickCount;
// for testing purpose
return argument;
var delta = currentDt - createdTime;
var createdTick = (uint)currentTick - (uint)delta.TotalMilliseconds;
//
// var tick = (uint)Environment.TickCount;
// var key = tick & 0xFFFF_0000; // only the high nibble is used
// only the high nibble is used.
return createdTick & 0xFFFF_0000;
// var encryptedArgument = new EncryptedArgument(argument, key);
// return encryptedArgument.ToString();
}
private static ArgumentBuilder ReadArgumentFromProcess(Process process)
{
var arguments = process.ReadArguments();
if (arguments.Length < 2)
{
throw new BootstrapException($"Process id {process.GetPid()} does not have any arguments to parse.");
}
var argument = arguments[1];
if (EncryptedArgument.TryParse(argument, out var encryptedArgument))
{
var key = RecoverKey(process);
argument = encryptedArgument.Decrypt(key);
}
return ArgumentBuilder.Parse(argument);
}
/// <summary>
/// Injects Dalamud into the process. See remarks for process state prerequisites.
/// </summary>