mirror of
https://github.com/wwiinnddyy/LanMountainDesktop.git
synced 2026-06-24 02:14:26 +08:00
390 lines
16 KiB
C#
390 lines
16 KiB
C#
using System.Diagnostics;
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using System.Text;
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using LanMountainDesktop.Launcher.Models;
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using LanMountainDesktop.Launcher.Shell;
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using LanMountainDesktop.Launcher.Views;
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using LanMountainDesktop.Shared.Contracts.Launcher;
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namespace LanMountainDesktop.Launcher.Startup;
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internal sealed class HostLaunchService
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{
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public async Task<HostLaunchOutcome> LaunchAsync(LaunchContext context, bool forceDirectMode = false, string? retryTag = null)
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{
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var commandContext = context.CommandContext;
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var deploymentLocator = context.DeploymentLocator;
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var resolution = deploymentLocator.ResolveHostExecutable(commandContext);
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if (!resolution.Success || string.IsNullOrWhiteSpace(resolution.ResolvedHostPath))
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{
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var (errorResult, selectedPath) = await LaunchUiPresenter.ShowHostNotFoundErrorAsync().ConfigureAwait(false);
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if (errorResult == ErrorWindowResult.Retry)
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{
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if (!string.IsNullOrWhiteSpace(selectedPath) && File.Exists(selectedPath))
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{
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return await LaunchWithExplicitPathAsync(context, selectedPath, forceDirectMode, retryTag).ConfigureAwait(false);
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}
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return await LaunchAsync(context, forceDirectMode, retryTag).ConfigureAwait(false);
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}
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return HostLaunchOutcome.FromResult(LaunchResultBuilder.Build(
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success: false,
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stage: "launchHost",
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code: "host_not_found",
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message: "LanMountainDesktop host executable was not found.",
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details: BuildResolutionDetails(resolution, null, null, "resolve")));
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}
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return await LaunchWithResolvedPathAsync(context, resolution, forceDirectMode, retryTag).ConfigureAwait(false);
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}
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public static LauncherResult? ValidateDotNetRuntimePrerequisite(
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HostLaunchPlan plan,
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HostResolutionResult resolution,
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DotNetRuntimeProbeOptions? probeOptions = null)
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{
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ArgumentNullException.ThrowIfNull(plan);
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ArgumentNullException.ThrowIfNull(resolution);
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if (!DotNetRuntimeProbe.IsFrameworkDependentWindowsApp(plan.HostPath))
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{
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return null;
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}
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var runtime = DotNetRuntimeProbe.Probe(probeOptions);
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Logger.Info(
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$"Runtime prerequisite check completed. Available={runtime.IsAvailable}; " +
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$"Architecture={runtime.Architecture}; Message='{runtime.Message}'.");
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if (runtime.IsAvailable)
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{
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return null;
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}
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var details = BuildResolutionDetails(resolution, null, null, "runtime");
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foreach (var pair in runtime.ToDetails())
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{
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details[pair.Key] = pair.Value;
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}
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return LaunchResultBuilder.Build(
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success: false,
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stage: "launchHost",
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code: "dotnet_runtime_missing",
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message: ".NET 10 Desktop Runtime is required before LanMountainDesktop can start.",
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details: details,
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errorMessage: runtime.Message);
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}
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private static Task<HostLaunchOutcome> LaunchWithExplicitPathAsync(
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LaunchContext context,
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string hostPath,
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bool forceDirectMode,
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string? retryTag)
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{
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var resolution = new HostResolutionResult
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{
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Success = true,
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ResolvedHostPath = Path.GetFullPath(hostPath),
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ResolutionSource = "user_selected_path",
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AppRoot = context.DeploymentLocator.GetAppRoot(),
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ExplicitAppRoot = Path.GetDirectoryName(hostPath),
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SearchedPaths = [Path.GetFullPath(hostPath)]
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};
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return LaunchWithResolvedPathAsync(context, resolution, forceDirectMode, retryTag);
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}
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private static async Task<HostLaunchOutcome> LaunchWithResolvedPathAsync(
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LaunchContext context,
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HostResolutionResult resolution,
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bool forceDirectMode,
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string? retryTag)
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{
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var dataRoot = context.DataLocationResolver.ResolveDataRoot();
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var plan = HostLaunchPlanBuilder.Build(context.CommandContext, context.DeploymentLocator, resolution, dataRoot);
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var prerequisiteFailure = ValidateDotNetRuntimePrerequisite(plan, resolution);
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if (prerequisiteFailure is not null)
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{
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return HostLaunchOutcome.FromResult(prerequisiteFailure);
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}
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await EnsureAirAppRuntimeStartedAsync(context.DeploymentLocator.GetAppRoot(), dataRoot).ConfigureAwait(false);
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var hostPath = plan.HostPath;
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if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
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{
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EnsureExecutable(hostPath);
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}
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var primaryMode = HostStartMode.Direct;
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var fallbackMode = !forceDirectMode && OperatingSystem.IsWindows()
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? HostStartMode.ShellExecute
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: (HostStartMode?)null;
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var firstAttempt = await StartHostProcessAsync(plan, primaryMode, retryTag).ConfigureAwait(false);
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if (firstAttempt.ProcessCreated && firstAttempt.Process is not null)
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{
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var firstDetails = BuildResolutionDetails(resolution, firstAttempt, null, null);
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return HostLaunchOutcome.FromProcess(
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firstAttempt.Process,
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LaunchResultBuilder.Build(true, "launchHost", "ok", "Host launched.", firstDetails),
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firstDetails);
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}
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if (fallbackMode is null)
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{
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return BuildOutcomeFromAttempt(resolution, firstAttempt, null);
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}
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Logger.Warn(
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$"Primary host start attempt failed. Retrying with fallback mode '{fallbackMode}'. " +
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$"FailureReason='{firstAttempt.FailureReason ?? "unknown"}'; ExitCode='{firstAttempt.ExitCode?.ToString() ?? "<none>"}'.");
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var secondAttempt = await StartHostProcessAsync(plan, fallbackMode.Value, retryTag).ConfigureAwait(false);
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if (secondAttempt.ProcessCreated && secondAttempt.Process is not null)
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{
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var details = BuildResolutionDetails(resolution, firstAttempt, secondAttempt, null);
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return HostLaunchOutcome.FromProcess(
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secondAttempt.Process,
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LaunchResultBuilder.Build(true, "launchHost", "ok", "Host launched.", details),
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details);
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}
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return BuildOutcomeFromAttempt(resolution, secondAttempt, firstAttempt);
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}
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private static HostLaunchOutcome BuildOutcomeFromAttempt(
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HostResolutionResult resolution,
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HostStartAttempt finalAttempt,
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HostStartAttempt? previousAttempt)
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{
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var details = BuildResolutionDetails(
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resolution,
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previousAttempt ?? finalAttempt,
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previousAttempt is null ? null : finalAttempt,
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!finalAttempt.ProcessCreated
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? "start"
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: finalAttempt.ExitCode is int finalExitCode && HostActivationPolicy.IsFailedActivationExitCode(finalExitCode)
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? "activation"
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: "early-exit");
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if (!finalAttempt.ProcessCreated)
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{
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return HostLaunchOutcome.FromResult(LaunchResultBuilder.Build(
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false,
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"launchHost",
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"host_start_failed",
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$"Failed to start host using start mode '{finalAttempt.StartMode}'.",
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details));
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}
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if (finalAttempt.ExitCode is not null && HostActivationPolicy.IsSuccessfulActivationExitCode(finalAttempt.ExitCode.Value))
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{
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return HostLaunchOutcome.FromImmediateResult(LaunchResultBuilder.Build(
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true,
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"launch",
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"activation_redirected",
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"Launcher activation was redirected to the existing desktop instance.",
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details));
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}
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if (finalAttempt.ExitCode is not null && HostActivationPolicy.IsFailedActivationExitCode(finalAttempt.ExitCode.Value))
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{
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return HostLaunchOutcome.FromResult(LaunchResultBuilder.Build(
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false,
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"launch",
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"activation_failed",
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$"Host activation handshake failed using start mode '{finalAttempt.StartMode}'.",
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details));
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}
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return HostLaunchOutcome.FromResult(LaunchResultBuilder.Build(
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false,
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"launchHost",
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"host_exited_early",
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$"Host exited early using start mode '{finalAttempt.StartMode}'.",
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details));
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}
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private static async Task EnsureAirAppRuntimeStartedAsync(string appRoot, string? dataRoot)
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{
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Logger.Info("HOST LAUNCH: Attempting to pre-start AirApp Runtime...");
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try
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{
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await new AirAppRuntimeBridge(appRoot, dataRoot).EnsureStartedAsync().ConfigureAwait(false);
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Logger.Info("HOST LAUNCH: AirApp Runtime pre-start completed.");
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}
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catch (Exception ex)
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{
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Logger.Warn($"HOST LAUNCH: AirApp Runtime pre-start failed; Host fallback remains available. Error='{ex.Message}'");
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}
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}
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private static async Task<HostStartAttempt> StartHostProcessAsync(
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HostLaunchPlan plan,
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HostStartMode startMode,
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string? retryTag)
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{
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var startInfo = new ProcessStartInfo
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{
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FileName = plan.HostPath,
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WorkingDirectory = plan.WorkingDirectory,
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UseShellExecute = startMode == HostStartMode.ShellExecute
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};
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// Direct 模式下重定向 stderr，捕获主程序崩溃时输出的诊断信息
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var stderrBuilder = new StringBuilder();
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if (startMode == HostStartMode.Direct)
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{
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startInfo.RedirectStandardError = true;
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startInfo.RedirectStandardOutput = false;
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foreach (var argument in plan.Arguments)
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{
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startInfo.ArgumentList.Add(argument);
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}
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foreach (var pair in plan.EnvironmentVariables)
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{
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startInfo.EnvironmentVariables[pair.Key] = pair.Value;
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}
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}
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else
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{
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startInfo.Arguments = HostLaunchPlanBuilder.FormatArgumentsForLog(plan.Arguments);
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}
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try
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{
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Logger.Info($"ATTEMPTING HOST START: Path='{plan.HostPath}'; WorkingDir='{plan.WorkingDirectory}'; Mode='{startMode}'");
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Logger.Info($" Arguments: {HostLaunchPlanBuilder.FormatArgumentsForLog(plan.Arguments)}");
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Logger.Info($" File exists: {File.Exists(plan.HostPath)}");
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Logger.Info($" Working dir exists: {Directory.Exists(plan.WorkingDirectory)}");
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var process = Process.Start(startInfo);
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Logger.Info(
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$"Host launch requested. Mode='{startMode}'; RetryTag='{retryTag ?? "<none>"}'; Path='{plan.HostPath}'; " +
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$"PackageRoot='{plan.PackageRoot}'; WorkingDir='{plan.WorkingDirectory}'; Pid={(process is null ? -1 : process.Id)}; " +
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$"Args='{HostLaunchPlanBuilder.FormatArgumentsForLog(plan.Arguments)}'.");
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if (process is null)
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{
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Logger.Error($"CRITICAL: Process.Start returned null! Path='{plan.HostPath}'; Mode='{startMode}'");
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Console.Error.WriteLine($"[CRITICAL] Process.Start returned null for path: {plan.HostPath}");
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return HostStartAttempt.StartFailed(startMode, "process_start_returned_null", plan);
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}
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// Direct 模式下异步读取 stderr，避免死锁并捕获主程序输出
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if (startMode == HostStartMode.Direct)
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{
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process.ErrorDataReceived += (_, dataArgs) =>
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{
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if (!string.IsNullOrEmpty(dataArgs.Data))
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{
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stderrBuilder.AppendLine(dataArgs.Data);
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Logger.Warn($"Host stderr: {dataArgs.Data}");
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}
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};
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process.BeginErrorReadLine();
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}
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// 等待一小段时间，检查进程是否立即退出
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await Task.Delay(500).ConfigureAwait(false);
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if (process.HasExited)
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{
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var stderrOutput = stderrBuilder.ToString();
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Logger.Error($"CRITICAL: Host process exited immediately! ExitCode={process.ExitCode}; Path='{plan.HostPath}'");
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Console.Error.WriteLine($"[CRITICAL] Host process exited immediately with code {process.ExitCode}");
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if (!string.IsNullOrWhiteSpace(stderrOutput))
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{
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Logger.Error($"Host stderr captured before exit:\n{stderrOutput}");
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}
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return HostStartAttempt.StartFailed(startMode, $"process_exited_immediately_code_{process.ExitCode}", plan, stderrOutput);
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}
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Logger.Info($"Host process started successfully and is running. PID={process.Id}");
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return HostStartAttempt.Started(startMode, process, plan, stderrBuilder.ToString());
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}
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catch (Exception ex)
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{
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Logger.Error($"CRITICAL: Host start exception! Path='{plan.HostPath}'; Mode='{startMode}'; Exception={ex.GetType().Name}; Message='{ex.Message}'", ex);
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Console.Error.WriteLine($"[CRITICAL] Host start failed: {ex.Message}");
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Console.Error.WriteLine($"[CRITICAL] Path: {plan.HostPath}");
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Console.Error.WriteLine($"[CRITICAL] Exception: {ex}");
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return HostStartAttempt.StartFailed(startMode, ex.GetType().Name, plan, stderrBuilder.ToString());
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}
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}
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internal static Dictionary<string, string> BuildResolutionDetails(
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HostResolutionResult resolution,
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HostStartAttempt? firstAttempt,
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HostStartAttempt? secondAttempt,
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string? failureStage)
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{
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var details = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase)
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{
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["resolvedAppRoot"] = resolution.AppRoot,
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["explicitAppRoot"] = resolution.ExplicitAppRoot ?? string.Empty,
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["resolvedHostPath"] = resolution.ResolvedHostPath ?? string.Empty,
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["resolutionSource"] = resolution.ResolutionSource ?? string.Empty,
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["devModeConfigIgnored"] = resolution.DevModeConfigIgnored.ToString(),
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["searchedPaths"] = string.Join(" | ", resolution.SearchedPaths),
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["failureStage"] = failureStage ?? string.Empty
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};
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if (firstAttempt is not null)
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{
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details["startMode"] = firstAttempt.StartMode.ToString();
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details["processCreated"] = firstAttempt.ProcessCreated.ToString();
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details["hostPid"] = firstAttempt.ProcessId?.ToString() ?? string.Empty;
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details["packageRoot"] = firstAttempt.PackageRoot ?? string.Empty;
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details["workingDirectory"] = firstAttempt.WorkingDirectory ?? string.Empty;
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details["arguments"] = firstAttempt.Arguments ?? string.Empty;
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details["firstAttemptFailureReason"] = firstAttempt.FailureReason ?? string.Empty;
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details["firstAttemptExitCode"] = firstAttempt.ExitCode?.ToString() ?? string.Empty;
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if (!string.IsNullOrWhiteSpace(firstAttempt.StderrOutput))
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{
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details["firstAttemptStderr"] = firstAttempt.StderrOutput;
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}
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}
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if (secondAttempt is not null)
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{
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details["fallbackStartMode"] = secondAttempt.StartMode.ToString();
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details["fallbackProcessCreated"] = secondAttempt.ProcessCreated.ToString();
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details["fallbackHostPid"] = secondAttempt.ProcessId?.ToString() ?? string.Empty;
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details["fallbackPackageRoot"] = secondAttempt.PackageRoot ?? string.Empty;
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details["fallbackWorkingDirectory"] = secondAttempt.WorkingDirectory ?? string.Empty;
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details["fallbackArguments"] = secondAttempt.Arguments ?? string.Empty;
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details["fallbackFailureReason"] = secondAttempt.FailureReason ?? string.Empty;
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details["fallbackExitCode"] = secondAttempt.ExitCode?.ToString() ?? string.Empty;
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if (!string.IsNullOrWhiteSpace(secondAttempt.StderrOutput))
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{
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details["fallbackAttemptStderr"] = secondAttempt.StderrOutput;
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}
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}
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return details;
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}
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private static void EnsureExecutable(string path)
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{
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if (OperatingSystem.IsWindows())
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{
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return;
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}
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try
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{
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var mode = File.GetUnixFileMode(path);
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mode |= UnixFileMode.UserExecute | UnixFileMode.GroupExecute | UnixFileMode.OtherExecute;
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File.SetUnixFileMode(path, mode);
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}
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catch
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{
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}
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}
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}
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