mirror of
https://github.com/ninjamuffin99/Funkin.git
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144 lines
3.6 KiB
Haxe
144 lines
3.6 KiB
Haxe
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package funkin.util.logging;
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import openfl.Lib;
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import openfl.events.UncaughtErrorEvent;
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/**
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* A custom crash handler that writes to a log file and displays a message box.
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*/
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@:nullSafety
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class CrashHandler
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{
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static final LOG_FOLDER = 'logs';
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/**
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* Initializes
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*/
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public static function initialize():Void
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{
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trace('[LOG] Enabling standard uncaught error handler...');
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Lib.current.loaderInfo.uncaughtErrorEvents.addEventListener(UncaughtErrorEvent.UNCAUGHT_ERROR, onUncaughtError);
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#if cpp
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trace('[LOG] Enabling C++ critical error handler...');
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untyped __global__.__hxcpp_set_critical_error_handler(onCriticalError);
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#end
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}
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/**
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* Called when an uncaught error occurs.
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* This handles most thrown errors, and is sufficient to handle everything alone on HTML5.
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* @param error Information on the error that was thrown.
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*/
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static function onUncaughtError(error:UncaughtErrorEvent):Void
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{
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try
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{
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#if sys
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logError(error);
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#end
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displayError(error);
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}
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catch (e:Dynamic)
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{
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trace('Error while handling crash: ' + e);
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}
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}
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static function onCriticalError(message:String):Void
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{
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try
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{
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#if sys
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logErrorMessage(message, true);
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#end
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displayErrorMessage(message);
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}
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catch (e:Dynamic)
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{
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trace('Error while handling crash: $e');
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trace('Message: $message');
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}
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}
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static function displayError(error:UncaughtErrorEvent):Void
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{
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displayErrorMessage(generateErrorMessage(error));
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}
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static function displayErrorMessage(message:String):Void
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{
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lime.app.Application.current.window.alert(message, "Fatal Uncaught Exception");
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}
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#if sys
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static function logError(error:UncaughtErrorEvent):Void
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{
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logErrorMessage(generateErrorMessage(error));
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}
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static function logErrorMessage(message:String, critical:Bool = false):Void
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{
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FileUtil.createDirIfNotExists(LOG_FOLDER);
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sys.io.File.saveContent('$LOG_FOLDER/crash${critical ? '-critical' : ''}-${DateUtil.generateTimestamp()}.log', message);
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}
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#end
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static function generateErrorMessage(error:UncaughtErrorEvent):String
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{
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var errorMessage:String = "";
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var callStack:Array<haxe.CallStack.StackItem> = haxe.CallStack.exceptionStack(true);
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errorMessage += '${error.error}\n';
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for (stackItem in callStack)
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{
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switch (stackItem)
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{
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case FilePos(innerStackItem, file, line, column):
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errorMessage += ' in ${file}#${line}';
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if (column != null) errorMessage += ':${column}';
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case CFunction:
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errorMessage += '[Function] ';
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case Module(m):
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errorMessage += '[Module(${m})] ';
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case Method(classname, method):
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errorMessage += '[Function(${classname}.${method})] ';
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case LocalFunction(v):
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errorMessage += '[LocalFunction(${v})] ';
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}
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errorMessage += '\n';
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}
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return errorMessage;
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}
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public static function queryStatus():Void
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{
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@:privateAccess
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var currentStatus = Lib.current.stage.__uncaughtErrorEvents.__enabled;
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trace('ERROR HANDLER STATUS: ' + currentStatus);
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#if openfl_enable_handle_error
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trace('Define: openfl_enable_handle_error is enabled');
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#else
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trace('Define: openfl_enable_handle_error is disabled');
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#end
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#if openfl_disable_handle_error
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trace('Define: openfl_disable_handle_error is enabled');
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#else
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trace('Define: openfl_disable_handle_error is disabled');
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#end
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}
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public static function induceBasicCrash():Void
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{
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throw "This is an example of an uncaught exception.";
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}
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}
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