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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="CliCheckHelper.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// Defines the CliCheckHelper type.
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrakeWPF.Helpers
{
using System;
using System.Diagnostics;
using System.IO;
using System.Security.Cryptography;
using System.Text.RegularExpressions;
using System.Windows.Forms;
using Caliburn.Micro;
using HandBrakeWPF.Services.Interfaces;
/// <summary>
/// The cli check helper.
/// </summary>
public class CliCheckHelper
{
/// <summary>
/// The check cli version.
/// </summary>
public static void CheckCLIVersion()
{
IErrorService errorService = IoC.Get<IErrorService>();
IUserSettingService userSettingService = IoC.Get<IUserSettingService>();
string line;
// 0 = SVN Build / Version
// 1 = Build Date
// Get the SHA1 Hash of HandBrakeCLI
byte[] hash;
using (Stream stream = File.OpenRead(Path.Combine(Application.StartupPath, "HandBrakeCLI.exe")))
{
hash = SHA1.Create().ComputeHash(stream);
}
string base64Hash = Convert.ToBase64String(hash);
// Compare the hash with the last known hash. If it's the same, return.
if (userSettingService.GetUserSetting<string>(UserSettingConstants.HandBrakeExeHash) == base64Hash)
{
return;
}
// It's not the same, so start the CLI to get it's version data.
Process cliProcess = new Process();
ProcessStartInfo handBrakeCli = new ProcessStartInfo(Path.Combine(Application.StartupPath, "HandBrakeCLI.exe"), " -u -v0")
{
UseShellExecute = false,
RedirectStandardError = true,
RedirectStandardOutput = true,
CreateNoWindow = true
};
cliProcess.StartInfo = handBrakeCli;
try
{
cliProcess.Start();
// Retrieve standard output and report back to parent thread until the process is complete
bool success = false;
TextReader stdOutput = cliProcess.StandardError;
while ((line = stdOutput.ReadLine()) != null)
{
Match m = Regex.Match(line, @"HandBrake ([a-zA-Z0-9.\-]*) \(([0-9]*)\)");
if (m.Success)
{
string build = m.Groups[2].Success ? m.Groups[2].Value : string.Empty;
int buildValue;
int.TryParse(build, out buildValue);
userSettingService.SetUserSetting(UserSettingConstants.HandBrakeBuild, buildValue);
success = true;
}
}
while (!cliProcess.HasExited)
{
if (cliProcess.TotalProcessorTime.Seconds > 10) // Don't wait longer than 10 seconds.
{
Process cli = Process.GetProcessById(cliProcess.Id);
if (!cli.HasExited)
{
cli.Kill();
}
}
}
if (success)
{
userSettingService.SetUserSetting(UserSettingConstants.HandBrakeExeHash, base64Hash);
}
}
catch (Exception e)
{
userSettingService.SetUserSetting(UserSettingConstants.HandBrakeBuild, 0);
userSettingService.SetUserSetting(UserSettingConstants.HandBrakeExeHash, string.Empty);
errorService.ShowError(
"Unable to Initialise HandBrake. This error is unrecoverable.", " Try restarting.", e);
}
}
}
}
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