ClassiCube/Launcher2/Utils/ErrorHandler.cs

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3.8 KiB
C#

// ClassicalSharp copyright 2014-2016 UnknownShadow200 | Licensed under MIT
using System;
using System.Diagnostics;
using System.IO;
using System.Windows.Forms;
using OpenTK;
// NOTE: Need to duplicate this code here, otherwise will crash with an unhelpful error messagfe
// if ClassicalSharp.exe is missing.
namespace Launcher {
/// <summary> Displays a message box when an unhandled exception occurs
/// and also logs it to a specified log file. </summary>
public static class ErrorHandler2 {
static string logFile = "crash.log";
static string fileName = "crash.log";
/// <summary> Adds a handler for when a unhandled exception occurs, unless
/// a debugger is attached to the process in which case this does nothing. </summary>
public static void InstallHandler(string logFile) {
ErrorHandler2.logFile = logFile;
fileName = Path.GetFileName(logFile);
if (!Debugger.IsAttached)
AppDomain.CurrentDomain.UnhandledException += UnhandledException;
}
/// <summary> Additional text that should be logged to the log file
/// when an unhandled exception occurs. </summary>
public static string[] AdditionalInfo;
static string Format(Exception ex) {
return ex.GetType().FullName + ": " + ex.Message
+ Environment.NewLine + ex.StackTrace;
}
static void UnhandledException(object sender, UnhandledExceptionEventArgs e) {
// So we don't get the normal unhelpful crash dialog on Windows.
Exception ex = (Exception)e.ExceptionObject;
bool wroteToCrashLog = true;
try {
using (StreamWriter writer = new StreamWriter(logFile, true)) {
writer.WriteLine("=== crash occurred ===");
writer.WriteLine("Time: " + DateTime.Now);
string platform = Configuration.RunningOnMono ? "Mono " : ".NET ";
platform += Environment.Version;
if (Configuration.RunningOnWindows) platform += ", Windows - ";
if (Configuration.RunningOnMacOS) platform += ", OSX - ";
if (Configuration.RunningOnLinux) platform += ", Linux - ";
platform += Environment.OSVersion.Version.ToString();
writer.WriteLine("Running on: " + platform);
while (ex != null) {
writer.WriteLine(Format(ex));
writer.WriteLine();
ex = ex.InnerException;
}
if (AdditionalInfo != null) {
foreach (string l in AdditionalInfo)
writer.WriteLine(l);
writer.WriteLine();
}
}
} catch (Exception) {
wroteToCrashLog = false;
}
string message = wroteToCrashLog ?
"The cause of the error has been logged to \"" + fileName + "\". Please consider reporting the error to " +
"github.com/UnknownShadow200/ClassicalSharp/issues so we can fix it." :
"Failed to log the cause of the the error. Please consider reporting the circumstances " +
"of the error to github.com/UnknownShadow200/ClassicalSharp/issues so we can fix it." +
Environment.NewLine + Environment.NewLine + Format(ex);
MessageBox.Show("An error occured and ClassicalSharp was forced to close." + Environment.NewLine +
Environment.NewLine + message, "We're sorry");
Environment.Exit(1);
}
/// <summary> Logs a handled exception that occured at the specified location to the log file. </summary>
public static bool LogError(string location, Exception ex) {
string error = ex.GetType().FullName + ": " + ex.Message
+ Environment.NewLine + ex.StackTrace;
return LogError(location, error);
}
/// <summary> Logs an error that occured at the specified location to the log file. </summary>
public static bool LogError(string location, string text) {
try {
using (StreamWriter writer = new StreamWriter(logFile, true)) {
writer.WriteLine("=== handled error ===");
writer.WriteLine("Occured when: " + location);
writer.WriteLine(text);
writer.WriteLine();
}
} catch (Exception) {
return false;
}
return true;
}
}
}