public bool TryCreateTransformer(HttpRequestBase request, IFormatInfo originalFormat, IFormatInfoProvider formatInfoProvider, out IMediaTransformer mediaTransformer)
{
var compositeTransformer = new CompositeMediaTransformer();
var factories = _transformerFactories.ToList();
AddTransformerToComposite(request, originalFormat, compositeTransformer, factories, formatInfoProvider);
mediaTransformer = compositeTransformer;
return compositeTransformer.Count > 0;
}
private static string GetOriginalPath(HttpRequestBase request, IMediaTransformer mediaTransformer)
{
var path = HttpUtility.UrlDecode(request.Url.AbsolutePath);
if (mediaTransformer != null)
{
path = mediaTransformer.ModifyAbsolutePath(path);
}
return(path);
}
public bool TryCreateTransformer(HttpRequestBase request, IFormatInfo originalFormat, IFormatInfoProvider formatInfoProvider, out IMediaTransformer mediaTransformer)
{
var transforms = GetBitmapTransforms(request.QueryString).ToArray();
if (!transforms.Any())
{
mediaTransformer = null;
return false;
}
IFormatInfo outputFormat;
BitmapEncoder encoder;
if (!TryGetContentType(originalFormat, request, formatInfoProvider, out outputFormat, out encoder))
{
mediaTransformer = null;
return false;
}
mediaTransformer = new ImageMediaTransformer(transforms, encoder, outputFormat);
return true;
}
public bool TryCreateTransformer(HttpRequestBase request, IFormatInfo originalFormat, IFormatInfoProvider formatInfoProvider, out IMediaTransformer mediaTransformer)
{
if (!CanHandleFormat(originalFormat))
{
mediaTransformer = null;
return false;
}
if(!IsValidFilePath(request.Url.AbsolutePath))
{
mediaTransformer = null;
return false;
}
IFormatInfo outputFormat;
if( !TryGetOutputFormat(request, originalFormat, formatInfoProvider, out outputFormat) )
{
mediaTransformer = null;
return false;
}
mediaTransformer = new MediaTransformer(outputFormat, this);
return true;
}
public bool TryCreateTransformer(HttpRequestBase request, IFormatInfo originalFormat, IFormatInfoProvider formatInfoProvider, out IMediaTransformer mediaTransformer)
{
if (!CanHandleFormat(originalFormat))
{
mediaTransformer = null;
return(false);
}
if (!IsValidFilePath(request.Url.AbsolutePath))
{
mediaTransformer = null;
return(false);
}
IFormatInfo outputFormat;
if (!TryGetOutputFormat(request, originalFormat, formatInfoProvider, out outputFormat))
{
mediaTransformer = null;
return(false);
}
mediaTransformer = new MediaTransformer(outputFormat, this);
return(true);
}
public bool TryCreateTransformer(HttpRequestBase request, IFormatInfo originalFormat, IFormatInfoProvider formatInfoProvider, out IMediaTransformer mediaTransformer)
{
var transforms = GetBitmapTransforms(request.QueryString).ToArray();
if (!transforms.Any())
{
mediaTransformer = null;
return(false);
}
IFormatInfo outputFormat;
BitmapEncoder encoder;
if (!TryGetContentType(originalFormat, request, formatInfoProvider, out outputFormat, out encoder))
{
mediaTransformer = null;
return(false);
}
mediaTransformer = new ImageMediaTransformer(transforms, encoder, outputFormat);
return(true);
}
public void AddMediaTransformer(IMediaTransformer transformer)
{
_transformers.Add(transformer);
}
private bool TryGetResult(HttpRequestBase request, IFormatInfo outputFormat, bool transformMedia, IMediaTransformer mediaTransformer, out IResult result)
{
var path = GetRequestPath(request);
var originalPath = GetOriginalPath(request, mediaTransformer);
if (MediaCache.TryServeRequestFromCache(transformMedia ? path : originalPath, outputFormat, out result))
{
return(true);
}
IStorageFile storageFile;
if (!StorageBackend.TryGetStorageFile(originalPath, out storageFile))
{
return(false);
}
if (!transformMedia && !CacheOriginals)
{
result = storageFile;
return(true);
}
if (transformMedia)
{
result = TransformMedia(storageFile.GetStream(), outputFormat, path, mediaTransformer);
return(true);
}
result = ServeOriginal(originalPath, storageFile, outputFormat);
return(true);
}
private IResult TransformMedia(Stream original, IFormatInfo outputFormat, string path, IMediaTransformer mediaTransformer)
{
Stream stream;
var transformResult = mediaTransformer.TransformStream(original, out stream);
original.Dispose();
if (transformResult == MediaTransformResult.Success)
{
IAddToCacheResult cacheResult;
if (MediaCache.TryAddToCache(path, stream, outputFormat, out cacheResult))
{
return(new CopyToOutputStreamResult(cacheResult.LastModified, cacheResult.ETag, stream.Length, stream));
}
}
return(new CopyToOutputStreamResult(null, null, stream.Length, stream));
}
private bool TryGetResult( HttpRequestBase request, IFormatInfo outputFormat, bool transformMedia, IMediaTransformer mediaTransformer, out IResult result )
{
var path = GetRequestPath( request );
var originalPath = GetOriginalPath( request, mediaTransformer );
if ( MediaCache.TryServeRequestFromCache( transformMedia ? path : originalPath, outputFormat, out result ) )
{
return true;
}
IStorageFile storageFile;
if ( !StorageBackend.TryGetStorageFile( originalPath, out storageFile ) )
{
return false;
}
if ( !transformMedia && !CacheOriginals )
{
result = storageFile;
return true;
}
if ( transformMedia )
{
result = TransformMedia( storageFile.GetStream(), outputFormat, path, mediaTransformer );
return true;
}
result = ServeOriginal( originalPath, storageFile, outputFormat );
return true;
}
private IResult TransformMedia( Stream original, IFormatInfo outputFormat, string path, IMediaTransformer mediaTransformer )
{
Stream stream;
var transformResult = mediaTransformer.TransformStream( original, out stream );
original.Dispose();
if ( transformResult == MediaTransformResult.Success )
{
IAddToCacheResult cacheResult;
if ( MediaCache.TryAddToCache( path, stream, outputFormat, out cacheResult ) )
{
return new CopyToOutputStreamResult( cacheResult.LastModified, cacheResult.ETag, stream.Length, stream );
}
}
return new CopyToOutputStreamResult( null, null, stream.Length, stream );
}
private static string GetOriginalPath( HttpRequestBase request, IMediaTransformer mediaTransformer )
{
var path = HttpUtility.UrlDecode( request.Url.AbsolutePath );
if ( mediaTransformer != null )
{
path = mediaTransformer.ModifyAbsolutePath( path );
}
return path;
}
public void AddMediaTransformer(IMediaTransformer transformer)
{
_transformers.Add(transformer);
}
public bool TryCreateTransformer(HttpRequestBase request, IFormatInfo originalFormat, IFormatInfoProvider formatInfoProvider, out IMediaTransformer mediaTransformer)
{
var compositeTransformer = new CompositeMediaTransformer();
var factories = _transformerFactories.ToList();
AddTransformerToComposite(request, originalFormat, compositeTransformer, factories, formatInfoProvider);
mediaTransformer = compositeTransformer;
return(compositeTransformer.Count > 0);
}
