/// <summary>
/// Attach a DpiHandler to the specified window
/// </summary>
/// <param name="window">Windows</param>
/// <param name="dpiHandler">DpiHandler</param>
private static void AttachDpiHandler(Window window, DpiHandler dpiHandler)
{
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Registering the UpdateLayoutTransform subscription for {0}", window.GetType());
}
// Add the layout transform action
var transformSubscription = dpiHandler.OnDpiChanged.Subscribe(dpiChangeInfo => window.UpdateLayoutTransform((double)dpiChangeInfo.NewDpi / DpiHandler.DefaultScreenDpi));
window.WinProcMessages().Subscribe(message =>
{
dpiHandler.HandleWindowMessages(message);
switch (message.Message)
{
case WindowsMessages.WM_NCCREATE:
// Apply scaling 1x time
window.UpdateLayoutTransform((double)NativeDpiMethods.GetDpi(message.Handle) / DpiHandler.DefaultScreenDpi);
break;
case WindowsMessages.WM_DESTROY:
// Remove layout transform
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Removing the UpdateLayoutTransform subscription for {0}", window.GetType());
}
transformSubscription.Dispose();
break;
}
});
}
private void RegistrationOnActivated(object sender, IActivatedEventArgs <object> e)
{
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("{0}Activated {1}", GetPrefix(), e.Component.Activator.LimitType);
}
}
/// <summary>
/// Helper to create the location of a file
/// </summary>
private void ScanFiles(LanguageConfig languageConfig)
{
var directories = new List <string>();
if (languageConfig.SpecifiedDirectories != null)
{
directories.AddRange(languageConfig.SpecifiedDirectories);
}
if (languageConfig.CheckStartupDirectory)
{
var startupDirectory = FileLocations.StartupDirectory;
if (startupDirectory != null)
{
directories.Add(Path.Combine(startupDirectory, "languages"));
}
}
if (languageConfig.CheckAppDataDirectory)
{
var appDataDirectory = FileLocations.RoamingAppDataDirectory(languageConfig.ApplicationName);
if (appDataDirectory != null)
{
directories.Add(Path.Combine(appDataDirectory, "languages"));
}
}
if (Log.IsDebugEnabled())
{
Log.Debug().WriteLine("Scanning directories: {0}", string.Join(",", directories));
}
Files = FileLocations.Scan(directories, _filePattern)
.GroupBy(x => x.Item2.Groups["IETF"].Value)
.ToDictionary(group => group.Key, group => group.Select(x => x.Item1)
.ToList());
if (Log.IsDebugEnabled())
{
Log.Debug().WriteLine("Detected language ietfs: {0}", string.Join(",", Files.Keys));
}
var allCultures = CultureInfo.GetCultures(CultureTypes.AllCultures)
.ToLookup(e => e.IetfLanguageTag, StringComparer.OrdinalIgnoreCase).ToDictionary(x => x.Key, x => x.First());
// TODO: Create custom culture for all not available, see: https://msdn.microsoft.com/en-us/library/ms172469(v=vs.90).aspx
// TODO: Add Embedded resources, especially for the assemblies to which ILanguage interfaces belong
AvailableLanguages = (from ietf in Files.Keys
where allCultures.ContainsKey(ietf)
select ietf).Distinct().ToDictionary(ietf => ietf, ietf => allCultures[ietf].NativeName);
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Languages found: {0}", string.Join(",", AvailableLanguages.Keys));
}
}
/// <summary>
/// Get the ManifestResourceNames for the specified assembly from cache or directly.
/// </summary>
/// <param name="possibleResourceAssembly">Assembly</param>
/// <returns>string array with resources names</returns>
public string[] GetCachedManifestResourceNames(Assembly possibleResourceAssembly)
{
var assemblyName = possibleResourceAssembly.GetName().Name;
// Get the resources from the cache
if (AssemblyResourceNames.TryGetValue(assemblyName, out var manifestResourceNames))
{
return(manifestResourceNames);
}
// If there was no cache, create it by retrieving the ManifestResourceNames for non dynamic assemblies
manifestResourceNames = possibleResourceAssembly.IsDynamic ? new string[] {}: possibleResourceAssembly.GetManifestResourceNames();
AssemblyResourceNames[assemblyName] = manifestResourceNames;
if (Log.IsVerboseEnabled() && manifestResourceNames.Length > 0)
{
Log.Verbose().WriteLine("Assembly {0} contains the following resources: {1}", possibleResourceAssembly.FullName, string.Join(", ", manifestResourceNames));
}
return(manifestResourceNames);
}
/// <inheritdoc />
public async Task <object> ConvertFromHttpContentAsync(Type resultType, HttpContent httpContent, CancellationToken cancellationToken = default)
{
if (!CanConvertFromHttpContent(resultType, httpContent))
{
throw new NotSupportedException("CanConvertFromHttpContent resulted in false, this is not supposed to be called.");
}
var jsonString = await httpContent.ReadAsStringAsync().ConfigureAwait(false);
// Check if verbose is enabled, if so log but only up to a certain size
if (Log.IsVerboseEnabled())
{
var defaultJsonHttpContentConverterConfiguration = HttpBehaviour.Current.GetConfig <DefaultJsonHttpContentConverterConfiguration>();
var logThreshold = defaultJsonHttpContentConverterConfiguration.LogThreshold;
if (logThreshold > 0)
{
Log.Verbose()
.WriteLine("Read Json content: {0}{1}", jsonString.Substring(0, Math.Min(jsonString.Length, logThreshold)),
jsonString.Length > logThreshold ? defaultJsonHttpContentConverterConfiguration.AppendedWhenCut : string.Empty);
}
else
{
Log.Verbose().WriteLine("Read Json content: {0}", jsonString);
}
}
// Check if we can just pass it back, as the target is string
if (resultType == typeof(string))
{
return(jsonString);
}
// empty json should return the default of the resultType
if (string.IsNullOrEmpty(jsonString))
{
if (resultType.GetTypeInfo().IsValueType)
{
return(Activator.CreateInstance(resultType));
}
return(null);
}
var httpBehaviour = HttpBehaviour.Current;
try
{
return(httpBehaviour.JsonSerializer.Deserialize(resultType == typeof(object) ? null : resultType, jsonString));
}
catch (SerializationException sEx)
{
// Make sure that the content which can't be deserialized is visible in the log.
Log.Error().WriteLine(sEx, "Can't deserialize the JSON from the server.");
Log.Error().WriteLine(jsonString);
throw;
}
}
/// <summary>
/// Method to set the ScrollbarInfo, if we can get it
/// </summary>
/// <param name="forceUpdate">set to true to force an update, default is false</param>
/// <returns>ScrollBarInfo?</returns>
public ScrollBarInfo?GetScrollbarInfo(bool forceUpdate = false)
{
// Prevent updates, if there is already a value
if (ScrollBar.HasValue && !forceUpdate)
{
return(ScrollBar);
}
var objectId = ObjectIdentifiers.Client;
switch (ScrollBarType)
{
case ScrollBarTypes.Control:
objectId = ObjectIdentifiers.Client;
break;
case ScrollBarTypes.Vertical:
objectId = ObjectIdentifiers.VerticalScrollbar;
break;
case ScrollBarTypes.Horizontal:
objectId = ObjectIdentifiers.HorizontalScrollbar;
break;
}
var scrollbarInfo = ScrollBarInfo.Create();
var hasScrollbarInfo = User32Api.GetScrollBarInfo(ScrollBarWindow.Handle, objectId, ref scrollbarInfo);
if (!hasScrollbarInfo)
{
var error = Win32.GetLastErrorCode();
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Error retrieving Scrollbar info : {0}", Win32.GetMessage(error));
}
return(null);
}
ScrollBar = scrollbarInfo;
return(scrollbarInfo);
}
/// <summary>
/// Configure the Bootstrapper
/// </summary>
public virtual ApplicationBootstrapper Configure()
{
// It's no problem when the builder is already created, skip recreating!
if (_builder != null)
{
return(this);
}
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Configuring");
}
_builder = new ContainerBuilder();
_builder.Properties[nameof(ApplicationName)] = ApplicationName;
foreach (var propertiesKey in _applicationConfig.Properties.Keys)
{
_builder.Properties[propertiesKey] = _applicationConfig.Properties[propertiesKey];
}
// Provide the IResourceProvider
_builder.RegisterInstance(Resolver.Resources).As <IResourceProvider>().ExternallyOwned();
return(this);
}
/// <summary>
/// Retrieve position from the scrollInfo
/// </summary>
/// <param name="scrollInfo">ScrollInfo out</param>
/// <returns>bool</returns>
private bool TryRetrievePosition(out ScrollInfo scrollInfo)
{
var hasScrollInfo = GetPosition(out scrollInfo);
if (Log.IsVerboseEnabled())
{
if (hasScrollInfo)
{
Log.Verbose().WriteLine("Retrieved ScrollInfo: {0}", scrollInfo);
}
else
{
Log.Verbose().WriteLine("Couldn't get scrollinfo.");
}
}
return(hasScrollInfo);
}
/// <summary>
/// Wait for a response
/// </summary>
/// <returns>MpdResponse</returns>
private async Task <MpdResponse> ReadResponseAsync()
{
var result = new MpdResponse();
using (var reader = new StreamReader(_networkStream, Encoding.UTF8, true, 512, true))
{
string line;
do
{
line = await reader.ReadLineAsync().ConfigureAwait(false);
} while (!result.AddLine(line));
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Received answer: {0}", string.Join(Environment.NewLine, result.ResponseLines));
}
}
return(result);
}
/// <summary>
/// This is more for debugging, with retrieve the complete DirectoryEntry for the AdsPath
/// </summary>
/// <param name="adsPath">
/// string with the AdsPath, this can be retrieved by setting AdProperty(AdProperties.Id) on a string
/// property for the type passed to Execute
/// </param>
/// <param name="username">Username for the connection, by default the current user is used</param>
/// <param name="password">Password for the supplied user</param>
/// <returns>DirectoryEntry</returns>
public static DirectoryEntry GetByAdsPath(string adsPath, string username = null, string password = null)
{
var directoryEntry = new DirectoryEntry(adsPath, username, password);
if (!Log.IsVerboseEnabled())
{
return(directoryEntry);
}
Log.Verbose().WriteLine("List of all properties and their value:");
foreach (var propertyName in directoryEntry.Properties.PropertyNames.Cast <string>().OrderBy(x => x))
{
Log.Verbose().WriteLine($"{propertyName} = {{0}}", directoryEntry.ConvertProperty(propertyName));
}
directoryEntry.RefreshCache(new[] { AdProperties.AllowedAttributesEffective.EnumValueOf() });
Log.Verbose().WriteLine("List of all writable properties:");
foreach (var writableProperty in directoryEntry.Properties[AdProperties.AllowedAttributesEffective.EnumValueOf()].Cast <string>().OrderBy(x => x))
{
Log.Verbose().WriteLine("Writable property: {0}", writableProperty);
}
return(directoryEntry);
}
/// <summary>
/// Message handler of the Per_Monitor_DPI_Aware window.
/// The handles the WM_DPICHANGED message and adjusts window size, graphics and text based on the DPI of the monitor.
/// The window message provides the new window size (lparam) and new DPI (wparam)
/// See
/// <a href="https://msdn.microsoft.com/en-us/library/windows/desktop/dn312083(v=vs.85).aspx">WM_DPICHANGED message</a>
/// </summary>
/// <param name="windowMessageInfo">WindowMessageInfo</param>
/// <returns>IntPtr</returns>
internal bool HandleWindowMessages(WindowMessageInfo windowMessageInfo)
{
bool handled = false;
var currentDpi = DefaultScreenDpi;
bool isDpiMessage = false;
switch (windowMessageInfo.Message)
{
// Handle the WM_NCCREATE for Forms / controls, for WPF this is done differently
case WindowsMessages.WM_NCCREATE:
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Processing {0} event, enabling DPI scaling for window {1}", windowMessageInfo.Message, windowMessageInfo.Handle);
}
TryEnableNonClientDpiScaling(windowMessageInfo.Handle);
break;
// Handle the WM_CREATE, this is where we can get the DPI via system calls
case WindowsMessages.WM_CREATE:
isDpiMessage = true;
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Processing {0} event, retrieving DPI for window {1}", windowMessageInfo.Message, windowMessageInfo.Handle);
}
currentDpi = NativeDpiMethods.GetDpi(windowMessageInfo.Handle);
_scopedThreadDpiAwarenessContext.Dispose();
break;
// Handle the DPI change message, this is where it's supplied
case WindowsMessages.WM_DPICHANGED:
isDpiMessage = true;
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Processing {0} event, resizing / positioning window {1}", windowMessageInfo.Message, windowMessageInfo.Handle);
}
// Retrieve the adviced location
var lprNewRect = (NativeRect)Marshal.PtrToStructure(windowMessageInfo.LongParam, typeof(NativeRect));
// Move the window to it's location, and resize
User32Api.SetWindowPos(windowMessageInfo.Handle,
IntPtr.Zero,
lprNewRect.Left,
lprNewRect.Top,
lprNewRect.Width,
lprNewRect.Height,
WindowPos.SWP_NOZORDER | WindowPos.SWP_NOOWNERZORDER | WindowPos.SWP_NOACTIVATE);
currentDpi = (uint)windowMessageInfo.WordParam & 0xFFFF;
// specify that the message was handled
handled = true;
break;
case WindowsMessages.WM_PAINT:
// This is a workaround for non DPI aware applications, these don't seem to get a WM_CREATE
if (Dpi == 0)
{
isDpiMessage = true;
currentDpi = NativeDpiMethods.GetDpi(windowMessageInfo.Handle);
}
break;
case WindowsMessages.WM_SETICON:
// This is a workaround for handling WinProc outside of the class
if (_needsListenerWorkaround)
{
isDpiMessage = true;
// disable workaround
_needsListenerWorkaround = false;
currentDpi = NativeDpiMethods.GetDpi(windowMessageInfo.Handle);
}
break;
case WindowsMessages.WM_DPICHANGED_BEFOREPARENT:
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Dpi changed on {0} before parent", windowMessageInfo.Handle);
}
break;
case WindowsMessages.WM_DPICHANGED_AFTERPARENT:
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Dpi changed on {0} after parent", windowMessageInfo.Handle);
}
break;
case WindowsMessages.WM_DESTROY:
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Completing the observable for {0}", windowMessageInfo.Handle);
}
// If the window is destroyed, we complete the subject
_onDpiChanged.OnCompleted();
// Dispose all resources
Dispose();
break;
}
// Check if the DPI was changed, if so call the action (if any)
if (!isDpiMessage)
{
return(false);
}
if (Dpi != currentDpi)
{
var beforeDpi = Dpi;
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Changing DPI from {0} to {1}", beforeDpi, currentDpi);
}
Dpi = currentDpi;
_onDpiChanged.OnNext(new DpiChangeInfo(beforeDpi, currentDpi));
}
else if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("DPI was unchanged from {0}", Dpi);
}
return(handled);
}
/// <summary>
/// Extension method reading the HttpResponseMessage to a Type object
/// Currently we support Json objects which are annotated with the DataContract/DataMember attributes
/// We might support other object, e.g MemoryStream, Bitmap etc soon
/// </summary>
/// <typeparam name="TResponse">The Type to read into</typeparam>
/// <param name="httpResponseMessage">HttpResponseMessage</param>
/// <param name="cancellationToken">CancellationToken</param>
/// <returns>the deserialized object of type T or default(T)</returns>
public static async Task <TResponse> GetAsAsync <TResponse>(this HttpResponseMessage httpResponseMessage,
CancellationToken cancellationToken = default) where TResponse : class
{
Log.Verbose().WriteLine("Response status code: {0}", httpResponseMessage.StatusCode);
var resultType = typeof(TResponse);
// Quick exit if the caller just wants the HttpResponseMessage
if (resultType == typeof(HttpResponseMessage))
{
return(httpResponseMessage as TResponse);
}
// See if we have a container
if (resultType.GetTypeInfo().GetCustomAttribute <HttpResponseAttribute>() != null)
{
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Filling type {0}", resultType.FriendlyName());
}
// special type
var instance = Activator.CreateInstance <TResponse>();
var properties = resultType.GetProperties().Where(x => x.GetCustomAttribute <HttpPartAttribute>() != null).ToList();
// Headers
if (properties.TryFindTarget(HttpParts.ResponseHeaders, out PropertyInfo targetPropertyInfo))
{
targetPropertyInfo.SetValue(instance, httpResponseMessage.Headers);
}
// StatusCode
if (properties.TryFindTarget(HttpParts.ResponseStatuscode, out targetPropertyInfo))
{
targetPropertyInfo.SetValue(instance, httpResponseMessage.StatusCode);
}
var responsePart = httpResponseMessage.IsSuccessStatusCode
? HttpParts.ResponseContent
: HttpParts.ResponseErrorContent;
var contentSet = false;
// Try to find the target for the error response
if (properties.TryFindTarget(responsePart, out targetPropertyInfo))
{
contentSet = true;
// get the response
var httpContent = httpResponseMessage.Content;
// Convert the HttpContent to the value type
var convertedContent =
await httpContent.GetAsAsync(targetPropertyInfo.PropertyType, httpResponseMessage.StatusCode, cancellationToken).ConfigureAwait(false);
// If we get null, we throw an error if the
if (convertedContent is null)
{
httpResponseMessage.EnsureSuccessStatusCode();
// If still here, we have a mapping issue
var message = $"Unsupported result type {targetPropertyInfo.PropertyType.Name} & {httpContent.GetContentType()} combination.";
Log.Error().WriteLine(message);
throw new NotSupportedException(message);
}
if (targetPropertyInfo.PropertyType.IsInstanceOfType(convertedContent))
{
// Now set the value
targetPropertyInfo.SetValue(instance, convertedContent);
}
else
{
// Cleanup, but only if the value is not passed onto the container
httpContent?.Dispose();
}
}
if (!contentSet && !httpResponseMessage.IsSuccessStatusCode)
{
await httpResponseMessage.HandleErrorAsync().ConfigureAwait(false);
}
return(instance);
}
if (httpResponseMessage.IsSuccessStatusCode)
{
var httpContent = httpResponseMessage.Content;
var result = await httpContent.GetAsAsync <TResponse>(httpResponseMessage.StatusCode, cancellationToken).ConfigureAwait(false);
// Make sure the httpContent is only disposed when it's not the return type
if (!typeof(HttpContent).IsAssignableFrom(typeof(TResponse)))
{
httpContent?.Dispose();
}
return(result);
}
await httpResponseMessage.HandleErrorAsync().ConfigureAwait(false);
return(default);
/// <summary>
/// Get a lock to the clipboard
/// </summary>
/// <param name="hWnd">IntPtr with a hWnd for the potential new owner</param>
/// <param name="retries">int with number of retries, default is 5</param>
/// <param name="retryInterval">TimeSpan for the time between retries</param>
/// <param name="timeout">optional TimeSpan for the timeout, default is 400ms</param>
/// <returns>IClipboardLock</returns>
public IClipboardAccessToken Lock(IntPtr hWnd = default, int retries = 5, TimeSpan?retryInterval = null, TimeSpan?timeout = null)
{
// Set default retry interval
retryInterval = retryInterval ?? DefaultRetryInterval;
// Set default timeout interval
timeout = timeout ?? DefaultTimeout;
#if !NETSTANDARD2_0
if (hWnd == IntPtr.Zero)
{
// Take the default
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Taking windows handle {0} from the WinProcHandler", WinProcHandler.Instance.Handle);
}
hWnd = WinProcHandler.Instance.Handle;
}
#endif
// If a timeout is passed, use this in the wait
if (!_semaphoreSlim.Wait(timeout.Value))
{
// Timeout
return(new ClipboardAccessToken
{
CanAccess = false,
IsLockTimeout = true
});
}
// Create the clipboard lock itself
bool isOpened = false;
do
{
if (OpenClipboard(hWnd))
{
isOpened = true;
break;
}
retries--;
// No reason to sleep, if there are no more retries
if (retries >= 0)
{
Thread.Sleep(retryInterval.Value);
}
} while (retries >= 0);
if (!isOpened)
{
return(new ClipboardAccessToken
{
CanAccess = false,
IsOpenTimeout = true
});
}
// Return a disposable which cleans up the current state.
return(new ClipboardAccessToken(() => {
CloseClipboard();
_semaphoreSlim.Release();
}));
}
/// <summary>
/// This will assert that the log levels work
/// </summary>
private static void AssertLogLevels(LogSource logSource, ILogger loggerUnderTest)
{
var initialLevel = loggerUnderTest.LogLevel;
try
{
// Assert the log levels
loggerUnderTest.LogLevel = LogLevels.None;
Assert.False(logSource.IsVerboseEnabled());
Assert.False(logSource.IsDebugEnabled());
Assert.False(logSource.IsInfoEnabled());
Assert.False(logSource.IsWarnEnabled());
Assert.False(logSource.IsErrorEnabled());
Assert.False(logSource.IsFatalEnabled());
loggerUnderTest.LogLevel = LogLevels.Verbose;
Assert.True(logSource.IsVerboseEnabled());
Assert.True(logSource.IsDebugEnabled());
Assert.True(logSource.IsInfoEnabled());
Assert.True(logSource.IsWarnEnabled());
Assert.True(logSource.IsErrorEnabled());
Assert.True(logSource.IsFatalEnabled());
loggerUnderTest.LogLevel = LogLevels.Debug;
Assert.False(logSource.IsVerboseEnabled());
Assert.True(logSource.IsDebugEnabled());
Assert.True(logSource.IsInfoEnabled());
Assert.True(logSource.IsWarnEnabled());
Assert.True(logSource.IsErrorEnabled());
Assert.True(logSource.IsFatalEnabled());
loggerUnderTest.LogLevel = LogLevels.Info;
Assert.False(logSource.IsVerboseEnabled());
Assert.False(logSource.IsDebugEnabled());
Assert.True(logSource.IsInfoEnabled());
Assert.True(logSource.IsWarnEnabled());
Assert.True(logSource.IsErrorEnabled());
Assert.True(logSource.IsFatalEnabled());
loggerUnderTest.LogLevel = LogLevels.Warn;
Assert.False(logSource.IsVerboseEnabled());
Assert.False(logSource.IsDebugEnabled());
Assert.False(logSource.IsInfoEnabled());
Assert.True(logSource.IsWarnEnabled());
Assert.True(logSource.IsErrorEnabled());
Assert.True(logSource.IsFatalEnabled());
loggerUnderTest.LogLevel = LogLevels.Error;
Assert.False(logSource.IsVerboseEnabled());
Assert.False(logSource.IsDebugEnabled());
Assert.False(logSource.IsInfoEnabled());
Assert.False(logSource.IsWarnEnabled());
Assert.True(logSource.IsErrorEnabled());
Assert.True(logSource.IsFatalEnabled());
loggerUnderTest.LogLevel = LogLevels.Fatal;
Assert.False(logSource.IsVerboseEnabled());
Assert.False(logSource.IsDebugEnabled());
Assert.False(logSource.IsInfoEnabled());
Assert.False(logSource.IsWarnEnabled());
Assert.False(logSource.IsErrorEnabled());
Assert.True(logSource.IsFatalEnabled());
}
finally
{
loggerUnderTest.LogLevel = initialLevel;
}
}
/// <summary>
/// Logic to load an embedded assembly
/// </summary>
/// <param name="assemblyLocationInformation"></param>
/// <returns>Assembly</returns>
private Assembly LoadEmbeddedAssembly(AssemblyLocationInformation assemblyLocationInformation)
{
if (!assemblyLocationInformation.IsEmbedded)
{
return(null);
}
// Check if we can work with temporary files
if (_applicationConfig.CopyEmbeddedAssembliesToFileSystem)
{
var assembly = LoadEmbeddedAssemblyViaTmpFile(assemblyLocationInformation);
if (assembly != null)
{
return(assembly);
}
}
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("Loading {0} internally, this COULD cause assembly load context issues...", assemblyLocationInformation.Name);
}
using (var stream = Resources.AbsoluteResourceAsStream(assemblyLocationInformation.ContainingAssembly, assemblyLocationInformation.Filename))
{
return(Assembly.Load(stream.ToByteArray()));
}
}
/// <summary>
/// This tries to get the Mutex, which takes care of having multiple instances running
/// </summary>
/// <returns>true if it worked, false if another instance is already running or something went wrong</returns>
public bool Lock()
{
if (Log.IsVerboseEnabled())
{
Log.Verbose().WriteLine("{0} is trying to get Mutex {1}", _resourceName, _mutexId);
}
IsLocked = true;
// check whether there's an local instance running already, but use local so this works in a multi-user environment
try
{
#if NET461
// Added Mutex Security, hopefully this prevents the UnauthorizedAccessException more gracefully
var sid = new SecurityIdentifier(WellKnownSidType.WorldSid, null);
var mutexsecurity = new MutexSecurity();
mutexsecurity.AddAccessRule(new MutexAccessRule(sid, MutexRights.FullControl, AccessControlType.Allow));
mutexsecurity.AddAccessRule(new MutexAccessRule(sid, MutexRights.ChangePermissions, AccessControlType.Deny));
mutexsecurity.AddAccessRule(new MutexAccessRule(sid, MutexRights.Delete, AccessControlType.Deny));
// 1) Create Mutex
_applicationMutex = new Mutex(true, _mutexId, out var createdNew, mutexsecurity);
#else
// 1) Create Mutex
_applicationMutex = new Mutex(true, _mutexId, out var createdNew);
#endif
// 2) if the mutex wasn't created new get the right to it, this returns false if it's already locked
if (!createdNew)
{
IsLocked = _applicationMutex.WaitOne(2000, false);
if (!IsLocked)
{
Log.Warn().WriteLine("Mutex {0} is already in use and couldn't be locked for the caller {1}", _mutexId, _resourceName);
// Clean up
_applicationMutex.Dispose();
_applicationMutex = null;
}
else
{
Log.Info().WriteLine("{0} has claimed the mutex {1}", _resourceName, _mutexId);
}
}
else
{
Log.Info().WriteLine("{0} has created & claimed the mutex {1}", _resourceName, _mutexId);
}
}
catch (AbandonedMutexException e)
{
// Another instance didn't cleanup correctly!
// we can ignore the exception, it happend on the "waitone" but still the mutex belongs to us
Log.Warn().WriteLine(e, "{0} didn't cleanup correctly, but we got the mutex {1}.", _resourceName, _mutexId);
}
catch (UnauthorizedAccessException e)
{
Log.Error().WriteLine(e, "{0} is most likely already running for a different user in the same session, can't create/get mutex {1} due to error.",
_resourceName, _mutexId);
IsLocked = false;
}
catch (Exception ex)
{
Log.Error().WriteLine(ex, "Problem obtaining the Mutex {1} for {0}, assuming it was already taken!", _resourceName, _mutexId);
IsLocked = false;
}
return(IsLocked);
}
