private async void LoadImage()
{
if (_currentTask != null)
{
_currentTask.Cancel();
}
TaskParameter imageLoader = null;
var ffSource = await FFImageSourceBinding.GetImageSourceBinding(Source);
if (ffSource == null)
{
if (internalImage != null)
{
await MainThreadDispatcher.Instance.PostAsync(() => {
internalImage.Source = null;
});
}
}
else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.Url)
{
imageLoader = ImageService.Instance.LoadUrl(ffSource.Path, TimeSpan.FromDays(CacheDuration));
}
else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.CompiledResource)
{
imageLoader = ImageService.Instance.LoadCompiledResource(ffSource.Path);
}
else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.ApplicationBundle)
{
imageLoader = ImageService.Instance.LoadFileFromApplicationBundle(ffSource.Path);
}
else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.Filepath)
{
imageLoader = ImageService.Instance.LoadFile(ffSource.Path);
}
if (imageLoader != null)
{
// CustomKeyFactory
if (CacheKeyFactory != null)
{
var dataContext = DataContext;
imageLoader.CacheKey(CacheKeyFactory.GetKey(Source, dataContext));
}
// LoadingPlaceholder
if (LoadingPlaceholder != null)
{
var placeholderSource = await FFImageSourceBinding.GetImageSourceBinding(LoadingPlaceholder);
if (placeholderSource != null)
{
imageLoader.LoadingPlaceholder(placeholderSource.Path, placeholderSource.ImageSource);
}
}
// ErrorPlaceholder
if (ErrorPlaceholder != null)
{
var placeholderSource = await FFImageSourceBinding.GetImageSourceBinding(ErrorPlaceholder);
if (placeholderSource != null)
{
imageLoader.ErrorPlaceholder(placeholderSource.Path, placeholderSource.ImageSource);
}
}
// Downsample
if (DownsampleToViewSize && (Width > 0 || Height > 0))
{
if (Height > Width)
{
imageLoader.DownSampleInDip(height: (int)Height);
}
else
{
imageLoader.DownSampleInDip(width: (int)Width);
}
}
else if (DownsampleToViewSize && (MinWidth > 0 || MinHeight > 0))
{
if (MinHeight > MinWidth)
{
imageLoader.DownSampleInDip(height: (int)MinHeight);
}
else
{
imageLoader.DownSampleInDip(width: (int)MinWidth);
}
}
else if ((int)DownsampleHeight != 0 || (int)DownsampleWidth != 0)
{
if (DownsampleHeight > DownsampleWidth)
{
if (DownsampleUseDipUnits)
{
imageLoader.DownSampleInDip(height: (int)DownsampleHeight);
}
else
{
imageLoader.DownSample(height: (int)DownsampleHeight);
}
}
else
{
if (DownsampleUseDipUnits)
{
imageLoader.DownSampleInDip(width: (int)DownsampleWidth);
}
else
{
imageLoader.DownSample(width: (int)DownsampleWidth);
}
}
}
// Downsample mode
imageLoader.DownSampleMode(DownsampleMode);
// RetryCount
if (RetryCount > 0)
{
imageLoader.Retry(RetryCount, RetryDelay);
}
// FadeAnimation
imageLoader.FadeAnimation(FadeAnimationEnabled);
// TransformPlaceholders
imageLoader.TransformPlaceholders(TransformPlaceholders);
// Transformations
if (Transformations != null && Transformations.Count != 0)
{
imageLoader.Transform(Transformations);
}
imageLoader.WithPriority(LoadingPriority);
imageLoader.WithCache(CacheType);
imageLoader.Finish((work) =>
OnFinish(new Args.FinishEventArgs(work)));
imageLoader.Success((imageInformation, loadingResult) =>
OnSuccess(new Args.SuccessEventArgs(imageInformation, loadingResult)));
imageLoader.Error((exception) =>
OnError(new Args.ErrorEventArgs(exception)));
_currentTask = imageLoader.Into(internalImage);
}
}
public CacheKeyFactoryTests()
{
CacheKeyFactory = new CacheKeyFactory();
}
/// <summary>
/// Setups the on before image loading.
/// You can add additional logic here to configure image loader settings before loading
/// </summary>
/// <param name="imageLoader">Image loader.</param>
/// <param name="source">Source.</param>
/// <param name="loadingPlaceholderSource">Loading placeholder source.</param>
/// <param name="errorPlaceholderSource">Error placeholder source.</param>
protected internal virtual void SetupOnBeforeImageLoading(out Work.TaskParameter imageLoader, IImageSourceBinding source, IImageSourceBinding loadingPlaceholderSource, IImageSourceBinding errorPlaceholderSource)
{
if (source.ImageSource == Work.ImageSource.Url)
{
imageLoader = ImageService.Instance.LoadUrl(source.Path, CacheDuration);
}
else if (source.ImageSource == Work.ImageSource.CompiledResource)
{
imageLoader = ImageService.Instance.LoadCompiledResource(source.Path);
}
else if (source.ImageSource == Work.ImageSource.ApplicationBundle)
{
imageLoader = ImageService.Instance.LoadFileFromApplicationBundle(source.Path);
}
else if (source.ImageSource == Work.ImageSource.Filepath)
{
imageLoader = ImageService.Instance.LoadFile(source.Path);
}
else if (source.ImageSource == Work.ImageSource.Stream)
{
imageLoader = ImageService.Instance.LoadStream(source.Stream);
}
else if (source.ImageSource == Work.ImageSource.EmbeddedResource)
{
imageLoader = ImageService.Instance.LoadEmbeddedResource(source.Path);
}
else
{
imageLoader = null;
return;
}
// CustomKeyFactory
if (CacheKeyFactory != null)
{
var bindingContext = BindingContext;
imageLoader.CacheKey(CacheKeyFactory.GetKey(Source, bindingContext));
}
// LoadingPlaceholder
if (LoadingPlaceholder != null)
{
if (loadingPlaceholderSource != null)
{
imageLoader.LoadingPlaceholder(loadingPlaceholderSource.Path, loadingPlaceholderSource.ImageSource);
}
}
// ErrorPlaceholder
if (ErrorPlaceholder != null)
{
if (errorPlaceholderSource != null)
{
imageLoader.ErrorPlaceholder(errorPlaceholderSource.Path, errorPlaceholderSource.ImageSource);
}
}
// Enable vector image source
var vect1 = Source as IVectorImageSource;
var vect2 = LoadingPlaceholder as IVectorImageSource;
var vect3 = ErrorPlaceholder as IVectorImageSource;
if (vect1 != null)
{
imageLoader.WithCustomDataResolver(vect1.GetVectorDataResolver());
}
if (vect2 != null)
{
imageLoader.WithCustomLoadingPlaceholderDataResolver(vect2.GetVectorDataResolver());
}
if (vect3 != null)
{
imageLoader.WithCustomErrorPlaceholderDataResolver(vect3.GetVectorDataResolver());
}
if (CustomDataResolver != null)
{
imageLoader.WithCustomDataResolver(CustomDataResolver);
imageLoader.WithCustomLoadingPlaceholderDataResolver(CustomDataResolver);
imageLoader.WithCustomErrorPlaceholderDataResolver(CustomDataResolver);
}
// Downsample
if (DownsampleToViewSize && (WidthRequest > 0 || HeightRequest > 0))
{
if (HeightRequest > WidthRequest)
{
imageLoader.DownSampleInDip(height: (int)HeightRequest);
}
else
{
imageLoader.DownSampleInDip(width: (int)WidthRequest);
}
}
else if (DownsampleToViewSize && (Width > 0 || Height > 0))
{
if (Height > Width)
{
imageLoader.DownSampleInDip(height: (int)Height);
}
else
{
imageLoader.DownSampleInDip(width: (int)Width);
}
}
else if ((int)DownsampleHeight != 0 || (int)DownsampleWidth != 0)
{
if (DownsampleHeight > DownsampleWidth)
{
if (DownsampleUseDipUnits)
{
imageLoader.DownSampleInDip(height: (int)DownsampleHeight);
}
else
{
imageLoader.DownSample(height: (int)DownsampleHeight);
}
}
else
{
if (DownsampleUseDipUnits)
{
imageLoader.DownSampleInDip(width: (int)DownsampleWidth);
}
else
{
imageLoader.DownSample(width: (int)DownsampleWidth);
}
}
}
else if (DownsampleToViewSize)
{
// Fallback to a constant value due to a lot people misusing DownsampleToViewSize property
// More here: https://github.com/luberda-molinet/FFImageLoading/wiki/Xamarin.Forms-API#downsampletoviewsize-bool-default-false
imageLoader.DownSample(height: 100);
ImageService.Instance.Config.Logger?.Error("DownsampleToViewSize failed - view is expandable in both dimensions, so it doesn't have a size. Please use DownsampleWidth or DownsampleHeight property.");
}
// RetryCount
if (RetryCount > 0)
{
imageLoader.Retry(RetryCount, RetryDelay);
}
if (BitmapOptimizations.HasValue)
{
imageLoader.BitmapOptimizations(BitmapOptimizations.Value);
}
// FadeAnimation
if (FadeAnimationEnabled.HasValue)
{
imageLoader.FadeAnimation(FadeAnimationEnabled.Value, duration: FadeAnimationDuration);
}
// FadeAnimationForCachedImages
if (FadeAnimationEnabled.HasValue && FadeAnimationForCachedImages.HasValue)
{
imageLoader.FadeAnimation(FadeAnimationEnabled.Value, FadeAnimationForCachedImages.Value, FadeAnimationDuration);
}
// TransformPlaceholders
if (TransformPlaceholders.HasValue)
{
imageLoader.TransformPlaceholders(TransformPlaceholders.Value);
}
// Transformations
if (Transformations != null && Transformations.Count > 0)
{
imageLoader.Transform(Transformations);
}
imageLoader.WithPriority(LoadingPriority);
if (CacheType.HasValue)
{
imageLoader.WithCache(CacheType.Value);
}
if (LoadingDelay.HasValue)
{
imageLoader.Delay(LoadingDelay.Value);
}
imageLoader.DownloadStarted((downloadInformation) => OnDownloadStarted(new CachedImageEvents.DownloadStartedEventArgs(downloadInformation)));
imageLoader.DownloadProgress((progress) => OnDownloadProgress(new CachedImageEvents.DownloadProgressEventArgs(progress)));
imageLoader.FileWriteFinished((fileWriteInfo) => OnFileWriteFinished(new CachedImageEvents.FileWriteFinishedEventArgs(fileWriteInfo)));
imageLoader.Error((exception) => OnError(new CachedImageEvents.ErrorEventArgs(exception)));
imageLoader.Finish((work) => OnFinish(new CachedImageEvents.FinishEventArgs(work)));
imageLoader.Success((imageInformation, loadingResult) => OnSuccess(new CachedImageEvents.SuccessEventArgs(imageInformation, loadingResult)));
SetupOnBeforeImageLoading(imageLoader);
}
private async Task SaveKeyAsync <T>(KeyTypeEnum keyType, T key)
{
this.memoryCache.Set(CacheKeyFactory.GetKeyCipher(keyType), key);
this.logger.LogDebug($"Successfully sync {keyType.ToString()} key(s) from KMS.");
await Task.CompletedTask;
}
private string GetPartitionKey(bool isAppCache, MsalAccessTokenCacheItem atItem)
{
return(isAppCache ?
CacheKeyFactory.GetClientCredentialKey(atItem.ClientId, atItem.TenantId, atItem.KeyId) :
CacheKeyFactory.GetKeyFromCachedItem(atItem));
}
/// <summary>
/// Add Signing credential by Redis
/// </summary>
/// <param name="builder">IIdentityServerBuilder</param>
/// <param name="appSettings">AppSettings</param>
/// <returns>IIdentityServerBuilder</returns>
public static IIdentityServerBuilder AddSigningCredentialByRedis(
this IIdentityServerBuilder builder, AppSettings appSettings)
{
// Variables
const int DEFAULT_EXPIRY_YEAR = 1;
var utcNow = DateTimeOffset.UtcNow;
var redisKeyWorkingSk = CacheKeyFactory.SigningCredential();
var redisKeyDeprecatedSk = CacheKeyFactory.SigningCredential(isDeprecated: true);
// RSA key object
Microsoft.IdentityModel.Tokens.RsaSecurityKey key = null; // The Key for Idsrv
// Signing credetial object from Redis
SigningCredential credential = null; // The Signing credential stored in Redis
List <SigningCredential> deprecatedCredentials = null; // The Deprecated Signing credentials stored in Redis
using (ICacheService redis = new RedisService(appSettings))
{
bool isSigningCredentialExists = redis.GetCache(redisKeyWorkingSk, out credential);
if (isSigningCredentialExists && credential.ExpireOn >= utcNow)
{
// Use the RSA key pair stored in redis
key = CryptoHelper.CreateRsaSecurityKey(credential.Parameters, credential.KeyId);
}
else if (isSigningCredentialExists && credential.ExpireOn < utcNow)
{
#region Move the expired Signing credential to Redis's Decprecated-Signing-Credential key
_ = redis.GetCache(redisKeyDeprecatedSk, out deprecatedCredentials);
if (deprecatedCredentials == null)
{
deprecatedCredentials = new List <SigningCredential>();
}
deprecatedCredentials.Add(credential);
redis.SaveCache(redisKeyDeprecatedSk, deprecatedCredentials);
#endregion
#region Clear the expired Signing credential from Redis's Signing-Credential key
redis.ClearCache(redisKeyWorkingSk);
#endregion
// Set flag as False
isSigningCredentialExists = false;
}
#region If no available Signing credial, create a new one
if (!isSigningCredentialExists)
{
key = CryptoHelper.CreateRsaSecurityKey();
RSAParameters parameters = key.Rsa == null ?
parameters = key.Parameters :
key.Rsa.ExportParameters(includePrivateParameters: true);
var expireOn = appSettings.Global?.SigningCredential?.DefaultExpiry == null?
utcNow.AddYears(DEFAULT_EXPIRY_YEAR) :
appSettings.Global.SigningCredential.DefaultExpiry.GetExpireOn();
credential = new SigningCredential
{
Parameters = parameters,
KeyId = key.KeyId,
ExpireOn = expireOn
};
// Save to Redis
redis.SaveCache(redisKeyWorkingSk, credential);
}
#endregion
// Add the key as the Signing credential for Idsrv
builder.AddSigningCredential(key, IdentityServerConstants.RsaSigningAlgorithm.RS256);
// Also add the expired key for clients' old tokens
if (redis.GetCache(redisKeyDeprecatedSk, out deprecatedCredentials))
{
IList <SecurityKeyInfo> deprecatedKeyInfos = new List <SecurityKeyInfo>();
deprecatedCredentials.ForEach(dc =>
{
var deprecatedKeyInfo = new SecurityKeyInfo
{
Key = CryptoHelper.CreateRsaSecurityKey(dc.Parameters, dc.KeyId),
SigningAlgorithm = SecurityAlgorithms.RsaSha256
};
deprecatedKeyInfos.Add(deprecatedKeyInfo);
// builder.AddValidationKey(deprecatedKey, IdentityServerConstants.RsaSigningAlgorithm.RS256));
});
builder.AddValidationKey(deprecatedKeyInfos.ToArray());
}
}
return(builder);
}
private async void LoadImage()
{
if (_currentTask != null)
{
_currentTask.Cancel();
}
TaskParameter imageLoader = null;
var ffSource = await FFImageSourceBinding.GetImageSourceBinding(Source);
if (ffSource == null)
{
if (internalImage != null)
{
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => {
internalImage.Source = null;
});
}
}
else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.Url)
{
imageLoader = ImageService.LoadUrl(ffSource.Path, TimeSpan.FromDays(CacheDuration));
}
else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.CompiledResource)
{
imageLoader = ImageService.LoadCompiledResource(ffSource.Path);
}
else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.ApplicationBundle)
{
imageLoader = ImageService.LoadFileFromApplicationBundle(ffSource.Path);
}
else if (ffSource.ImageSource == FFImageLoading.Work.ImageSource.Filepath)
{
imageLoader = ImageService.LoadFile(ffSource.Path);
}
if (imageLoader != null)
{
// CustomKeyFactory
if (CacheKeyFactory != null)
{
var dataContext = DataContext;
imageLoader.CacheKey(CacheKeyFactory.GetKey(Source, dataContext));
}
// LoadingPlaceholder
if (LoadingPlaceholder != null)
{
var placeholderSource = await FFImageSourceBinding.GetImageSourceBinding(LoadingPlaceholder);
if (placeholderSource != null)
{
imageLoader.LoadingPlaceholder(placeholderSource.Path, placeholderSource.ImageSource);
}
}
// ErrorPlaceholder
if (ErrorPlaceholder != null)
{
var placeholderSource = await FFImageSourceBinding.GetImageSourceBinding(ErrorPlaceholder);
if (placeholderSource != null)
{
imageLoader.ErrorPlaceholder(placeholderSource.Path, placeholderSource.ImageSource);
}
}
// Downsample
if (DownsampleToViewSize && (Width > 0 || Height > 0))
{
if (Height > Width)
{
imageLoader.DownSample(height: Height.PointsToPixels());
}
else
{
imageLoader.DownSample(width: Width.PointsToPixels());
}
}
else if (DownsampleToViewSize && (MinWidth > 0 || MinHeight > 0))
{
if (MinHeight > MinWidth)
{
imageLoader.DownSample(height: MinHeight.PointsToPixels());
}
else
{
imageLoader.DownSample(width: MinWidth.PointsToPixels());
}
}
else if ((int)DownsampleHeight != 0 || (int)DownsampleWidth != 0)
{
if (DownsampleHeight > DownsampleWidth)
{
imageLoader.DownSample(height: DownsampleUseDipUnits
? DownsampleHeight.PointsToPixels() : (int)DownsampleHeight);
}
else
{
imageLoader.DownSample(width: DownsampleUseDipUnits
? DownsampleWidth.PointsToPixels() : (int)DownsampleWidth);
}
}
// Downsample mode
imageLoader.DownSampleMode(DownsampleMode);
// RetryCount
if (RetryCount > 0)
{
imageLoader.Retry(RetryCount, RetryDelay);
}
// FadeAnimation
imageLoader.FadeAnimation(FadeAnimationEnabled);
// TransformPlaceholders
imageLoader.TransformPlaceholders(TransformPlaceholders);
// Transformations
if (Transformations != null && Transformations.Count != 0)
{
imageLoader.Transform(Transformations);
}
_currentTask = imageLoader.Into(internalImage);
}
}
private bool TryFindBinary(string url, string localPath, bool retrieveData, out IBinary binary)
{
string physicalPath = localPath ?? Path.Combine(Configuration.BinaryFileSystemCachePath, Path.GetFileName(url));
LoggerService.Debug($"Using physical path {physicalPath}");
binary = new Binary();
Dimensions dimensions = null;
string urlWithoutDimensions = StripDimensions(url, out dimensions);
if (LoadBinariesAsStream)
{
LoggerService.Information("retrieving binaries as a stream is obsolete; support will be dropped in future versions of DD4T");
binary.BinaryStream = BinaryProvider.GetBinaryStreamByUrl(urlWithoutDimensions);
if (binary.BinaryStream == null)
{
return(false);
}
}
string cacheKey = CacheKeyFactory.GenerateKey(urlWithoutDimensions);
try
{
IBinaryMeta binaryMeta = CacheAgent.Load(cacheKey) as IBinaryMeta;
bool metaWasInCache = true;
if (binaryMeta == null)
{
metaWasInCache = false;
binaryMeta = BinaryProvider.GetBinaryMetaByUrl(urlWithoutDimensions);
if (binaryMeta == null)
{
throw new BinaryNotFoundException();
}
CacheAgent.Store(cacheKey, "Binary", binaryMeta, new List <string> {
binaryMeta.Id
});
}
if (FileExistsAndIsNotEmpty(physicalPath))
{
if (binaryMeta.HasLastPublishedDate || metaWasInCache)
{
DateTime fileModifiedDate = File.GetLastWriteTime(physicalPath);
if (fileModifiedDate.CompareTo(binaryMeta.LastPublishedDate) >= 0)
{
LoggerService.Debug("binary {0} is still up to date, no action required", urlWithoutDimensions);
// TODO: load bytes from file system into binary
if (retrieveData)
{
FillBinaryFromLocalFS(binary, physicalPath);
}
CopyBinaryMetaToBinary(binaryMeta, binary);
return(true);
}
}
}
// the normal situation (where a binary is still in Tridion and it is present on the file system already and it is up to date) is now covered
// Let's handle the exception situations.
byte[] bytes = BinaryProvider.GetBinaryByUrl(urlWithoutDimensions);
if (bytes == null || bytes.Length == 0)
{
throw new BinaryNotFoundException();
}
bool fileIsCreated = WriteBinaryToFile(bytes, physicalPath, dimensions);
if (!fileIsCreated)
{
LoggerService.Warning($"file '{physicalPath}' could not be created, binary {binary.Id} cannot be returned");
return(false);
}
if (retrieveData)
{
if (dimensions == null)
{
binary.BinaryData = bytes;
}
else
{
FillBinaryFromLocalFS(binary, physicalPath);
}
}
CopyBinaryMetaToBinary(binaryMeta, binary);
return(true);
}
catch (BinaryNotFoundException)
{
LoggerService.Debug("Binary with url {0} not found", urlWithoutDimensions);
// binary does not exist in Tridion, it should be removed from the local file system too
if (File.Exists(physicalPath))
{
DeleteFile(physicalPath);
}
return(false);
}
catch (Exception e)
{
LoggerService.Warning($"Caught unexpected exception while retrieving binary with url {urlWithoutDimensions} (requested url: {url}. Error message: {e.Message}\r\n{e.StackTrace}");
if (File.Exists(physicalPath))
{
DeleteFile(physicalPath);
}
throw e;
}
}
