LANCommander/LANCommander.SDK/ProcessExecutionContext.cs

317 lines
12 KiB
C#

using LANCommander.SDK.Extensions;
using LANCommander.SDK.Helpers;
using LANCommander.SDK.Models;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text.Json;
using YamlDotNet.Serialization;
using YamlDotNet.Serialization.NamingConventions;
using System.Threading;
using System.Threading.Tasks;
using LANCommander.SDK.Enums;
using LANCommander.SDK.Services;
namespace LANCommander.SDK
{
public class ProcessExecutionContext(
ILogger<ProcessExecutionContext> logger,
LobbyClient lobbyClient) : IDisposable
{
private Process Process;
private Dictionary<string, string> Variables { get; set; } = new Dictionary<string, string>();
public event DataReceivedEventHandler? OutputDataReceived;
public event DataReceivedEventHandler? ErrorDataReceived;
public void AddVariable(string key, string value)
{
Variables[key] = value;
}
public string ExpandVariables(string input, string workingDirectory, Dictionary<string, string> additionalVariables = null, bool skipSlashes = false)
{
try
{
if (input == null)
return input;
foreach (var variable in Variables)
{
input = input.Replace($"{{{variable.Key}}}", variable.Value);
}
if (additionalVariables != null)
foreach (var variable in additionalVariables)
{
input = input.Replace($"{{{variable.Key}}}", variable.Value);
}
return input.ExpandEnvironmentVariables(workingDirectory, skipSlashes);
}
catch (Exception ex)
{
logger?.LogError(ex, "Could not expand runtime variables");
return input;
}
}
public Process GetProcess()
{
return Process;
}
public Task ExecuteServerAsync(Models.Server server,
CancellationTokenSource cancellationTokenSource = default)
{
Process = new Process();
Process.EnableRaisingEvents = true;
var processStartInfo = new ProcessStartInfo();
processStartInfo.Arguments = ExpandVariables(server.Arguments, server.WorkingDirectory, skipSlashes: true);
processStartInfo.FileName = ExpandVariables(server.Path, server.WorkingDirectory);
processStartInfo.WorkingDirectory = server.WorkingDirectory;
processStartInfo.UseShellExecute = server.UseShellExecute;
if (!server.UseShellExecute)
{
processStartInfo.RedirectStandardError = true;
processStartInfo.RedirectStandardOutput = true;
}
Process.StartInfo = processStartInfo;
if (OutputDataReceived != null && !processStartInfo.UseShellExecute)
Process.OutputDataReceived += OutputDataReceived;
if (OutputDataReceived != null && !processStartInfo.UseShellExecute)
Process.ErrorDataReceived += ErrorDataReceived;
logger?.LogTrace("Running server executable");
logger?.LogTrace("Arguments: {Arguments}", Process.StartInfo.Arguments);
logger?.LogTrace("File Name: {FileName}", Process.StartInfo.FileName);
logger?.LogTrace("Working Directory: {WorkingDirectory}", Process.StartInfo.WorkingDirectory);
bool exited = false;
Process.Start();
Process.Exited += (sender, args) =>
{
if (cancellationTokenSource?.Token.CanBeCanceled ?? false)
cancellationTokenSource.Cancel();
};
if (processStartInfo.RedirectStandardError)
Process.BeginErrorReadLine();
if (processStartInfo.RedirectStandardOutput)
Process.BeginOutputReadLine();
cancellationTokenSource?.Token.WaitHandle.WaitOne();
Process.Kill(server.ProcessTerminationMethod);
return Task.CompletedTask;
}
public async Task ExecuteGameActionAsync(string installDirectory, Guid gameId, Models.Manifest.Action action, string args = "", CancellationToken cancellationToken = default)
{
var manifest = await ManifestHelper.ReadAsync<Models.Manifest.Game>(installDirectory, gameId);
if (action == null)
action = manifest.Actions.FirstOrDefault(a => a.IsPrimaryAction);
if (manifest.CustomFields != null && manifest.CustomFields.Any())
{
foreach (var customField in manifest.CustomFields)
{
AddVariable(customField.Name, customField.Value);
}
}
Process = new Process();
Process.StartInfo.Arguments = ExpandVariables(action.Arguments, installDirectory, skipSlashes: true);
Process.StartInfo.FileName = ExpandVariables(action.Path, installDirectory);
Process.StartInfo.WorkingDirectory = ExpandVariables(action.WorkingDirectory, installDirectory);
Process.StartInfo.UseShellExecute = true;
if (OutputDataReceived != null)
Process.OutputDataReceived += OutputDataReceived;
if (ErrorDataReceived != null)
Process.ErrorDataReceived += ErrorDataReceived;
if (String.IsNullOrWhiteSpace(action.WorkingDirectory))
Process.StartInfo.WorkingDirectory = installDirectory;
if (!String.IsNullOrWhiteSpace(args))
Process.StartInfo.Arguments += " " + args;
ApplyCompatibilityOptions(manifest, action, installDirectory);
logger?.LogTrace("Running game executable");
logger?.LogTrace("Arguments: {Arguments}", Process.StartInfo.Arguments);
logger?.LogTrace("File Name: {FileName}", Process.StartInfo.FileName);
logger?.LogTrace("Working Directory: {WorkingDirectory}", Process.StartInfo.WorkingDirectory);
logger?.LogTrace("Manifest Path: {ManifestPath}", ManifestHelper.GetPath(installDirectory, gameId));
bool exited = false;
Process.Start();
await Process.WaitForAllExitAsync(cancellationToken);
}
private void ApplyCompatibilityOptions(Models.Manifest.Game manifest, Models.Manifest.Action action, string installDirectory)
{
if (manifest.Redistributables == null)
return;
var shimRedistributables = manifest.Redistributables
.Where(r => !string.IsNullOrWhiteSpace(r.OptionSchema))
.ToList();
if (!shimRedistributables.Any())
return;
// Parse per-action overrides
Dictionary<Guid, Dictionary<string, string>> actionOverrides = null;
if (!string.IsNullOrWhiteSpace(action?.OptionOverrides))
{
try
{
actionOverrides = JsonSerializer.Deserialize<Dictionary<Guid, Dictionary<string, string>>>(action.OptionOverrides);
}
catch (Exception ex)
{
logger?.LogWarning(ex, "Could not parse action option overrides");
}
}
foreach (var redistributable in shimRedistributables)
{
OptionSchema schema;
try
{
var deserializer = new DeserializerBuilder()
.WithNamingConvention(PascalCaseNamingConvention.Instance)
.WithTypeConverter(new OptionChoiceYamlConverter())
.IgnoreUnmatchedProperties()
.Build();
schema = deserializer.Deserialize<OptionSchema>(redistributable.OptionSchema);
}
catch (Exception ex)
{
logger?.LogWarning(ex, "Could not parse option schema for redistributable {Name}", redistributable.Name);
continue;
}
if (schema == null)
continue;
// Flatten nested options into dot-notation keys
var flatOptions = schema.GetFlattenedOptions();
// Resolve option values: defaults → per-game → per-action overrides
var resolvedOptions = new Dictionary<string, string>();
foreach (var kvp in flatOptions)
{
var defaultValue = kvp.Value.GetDefaultAsString();
if (!string.IsNullOrWhiteSpace(defaultValue))
resolvedOptions[kvp.Key] = defaultValue;
}
// Apply per-game values
if (redistributable.Options != null)
{
foreach (var kvp in redistributable.Options)
{
resolvedOptions[kvp.Key] = kvp.Value;
}
}
// Apply per-action overrides
if (actionOverrides != null && actionOverrides.TryGetValue(redistributable.Id, out var overrides))
{
foreach (var kvp in overrides)
{
resolvedOptions[kvp.Key] = kvp.Value;
}
}
// Set environment variables for options that define envVar
{
bool hasEnvVars = flatOptions.Any(kvp =>
kvp.Value.IsEnvironmentVariable && !kvp.Value.IsList && resolvedOptions.ContainsKey(kvp.Key));
if (hasEnvVars || !string.IsNullOrWhiteSpace(schema.CommandTemplate))
{
Process.StartInfo.UseShellExecute = false;
}
foreach (var kvp in flatOptions.Where(kvp => kvp.Value.IsEnvironmentVariable))
{
if (kvp.Value.IsList)
{
logger?.LogTrace("Skipping env-var assignment for list option {Key} — read it via Get-RedistributableOptions instead", kvp.Key);
continue;
}
if (resolvedOptions.TryGetValue(kvp.Key, out var value) && !string.IsNullOrWhiteSpace(value))
{
// Use the leaf key name as the environment variable name
var envVarName = kvp.Key.Contains(".") ? kvp.Key.Substring(kvp.Key.LastIndexOf('.') + 1) : kvp.Key;
Process.StartInfo.EnvironmentVariables[envVarName] = ExpandVariables(value, installDirectory);
logger?.LogTrace("Set environment variable {EnvVar}={Value}", envVarName, value);
}
}
}
// Apply command template
if (!string.IsNullOrWhiteSpace(schema.CommandTemplate))
{
var originalExe = Process.StartInfo.FileName;
var originalArgs = Process.StartInfo.Arguments;
var expandedTemplate = ExpandVariables(schema.CommandTemplate, installDirectory);
expandedTemplate = expandedTemplate.Replace("{exe}", originalExe).Replace("{args}", originalArgs);
// Split template into command and arguments
var parts = expandedTemplate.Split(new[] { ' ' }, 2);
Process.StartInfo.FileName = parts[0];
Process.StartInfo.Arguments = parts.Length > 1 ? parts[1] : string.Empty;
logger?.LogTrace("Applied compatibility template: {FileName} {Arguments}", Process.StartInfo.FileName, Process.StartInfo.Arguments);
}
}
}
public void Dispose()
{
try
{
if (Process != null)
{
if (!Process.HasExited)
Process.Close();
Process.Dispose();
}
}
catch { }
lobbyClient.ReleaseSteam();
}
}
}