/// <summary>
/// Gets the cached local file for a given URL path.
/// </summary>
/// <param name="urlPath">The URL path.</param>
/// <param name="localization">The Localization.</param>
/// <returns>The path to the local file.</returns>
internal string GetCachedFile(string urlPath, Localization localization)
{
IBinaryProvider provider = Provider;
string baseDir = AppDomain.CurrentDomain.BaseDirectory;
string localFilePath = $"{baseDir}/{urlPath}";
if (File.Exists(localFilePath))
{
// If our resource exists on the filesystem we can assume static content that is
// manually added to web application.
return(localFilePath);
}
// Attempt cache location with fallback to retrieval from content service.
localFilePath = $"{baseDir}/{localization.BinaryCacheFolder}/{urlPath}";
using (new Tracer(urlPath, localization, localFilePath))
{
Dimensions dimensions;
urlPath = StripDimensions(urlPath, out dimensions);
if (File.Exists(localFilePath))
{
if (IsCached(() => provider.GetBinaryLastPublishedDate(localization, urlPath), localFilePath, localization))
{
return(localFilePath);
}
}
var binary = provider.GetBinary(localization, urlPath);
if (binary != null)
{
WriteBinaryToFile(binary.Item1, localFilePath, dimensions);
}
return(localFilePath);
}
}
/// <summary>
/// Gets the cached local file for a given binary Id.
/// </summary>
/// <param name="binaryId">The binary Id.</param>
/// <param name="localization">The Localization.</param>
/// <returns>The path to the local file.</returns>
internal string GetCachedFile(int binaryId, Localization localization, out MemoryStream memoryStream)
{
memoryStream = null;
IBinaryProvider provider = Provider;
string baseDir = AppDomain.CurrentDomain.BaseDirectory;
string localFilePath = $"{baseDir}/{localization.BinaryCacheFolder}";
using (new Tracer(binaryId, localization, localFilePath))
{
try
{
if (Directory.Exists(localFilePath))
{
string[] files = Directory.GetFiles(localFilePath, $"{binaryId}*",
SearchOption.TopDirectoryOnly);
if (files.Length > 0)
{
localFilePath = files[0];
if (IsCached(() => provider.GetBinaryLastPublishedDate(localization, binaryId),
localFilePath,
localization))
{
return(localFilePath);
}
}
}
}
catch (Exception ex)
{
// Our binary cache folder probably doesn't exist.
Log.Warn($"Failed to cache binary at {localFilePath}");
Log.Warn(ex.Message);
}
var data = provider.GetBinary(localization, binaryId);
if (string.IsNullOrEmpty(Path.GetExtension(localFilePath)))
{
var ext = Path.GetExtension(data.Item2) ?? "";
localFilePath = $"{localFilePath}/{binaryId}{ext}";
}
WriteBinaryToFile(data.Item1, localFilePath, null, out memoryStream);
return(localFilePath);
}
}
