public ImageJobInfo(HttpContext context, ImageflowMiddlewareOptions options, BlobProvider blobProvider)
{
this.options = options;
Authorized = ProcessRewritesAndAuthorization(context, options);
if (!Authorized)
{
return;
}
HasParams = PathHelpers.SupportedQuerystringKeys.Any(FinalQuery.ContainsKey);
var extension = Path.GetExtension(FinalVirtualPath);
if (FinalQuery.TryGetValue("format", out var newExtension))
{
extension = newExtension;
}
EstimatedFileExtension = PathHelpers.SanitizeImageExtension(extension);
primaryBlob = new BlobFetchCache(FinalVirtualPath, blobProvider);
allBlobs = new List <BlobFetchCache>(1)
{
primaryBlob
};
if (HasParams)
{
CommandString = PathHelpers.SerializeCommandString(FinalQuery);
// Look up watermark names
if (FinalQuery.TryGetValue("watermark", out var watermarkValues))
{
var watermarkNames = watermarkValues.Split(",").Select(s => s.Trim(' '));
appliedWatermarks = new List <NamedWatermark>();
foreach (var name in watermarkNames)
{
var watermark = options.NamedWatermarks.FirstOrDefault(w =>
w.Name.Equals(name, StringComparison.OrdinalIgnoreCase));
if (watermark == null)
{
throw new InvalidOperationException($"watermark {name} was referenced from the querystring but no watermark by that name is registered with the middleware");
}
appliedWatermarks.Add(watermark);
allBlobs.Add(new BlobFetchCache(watermark.VirtualPath, blobProvider));
}
}
}
provider = blobProvider;
}
public static async Task <BlobFetchResult> FromCache(BlobFetchCache blobFetchCache)
{
var sw = Stopwatch.StartNew();
using var blob = await blobFetchCache.GetBlob();
if (blob == null)
{
return(null);
}
var source = new StreamSource(blob.OpenRead(), true);
var result = new BlobFetchResult()
{
streamSource = source,
blob = blob,
bytes = await source.GetBytesAsync(CancellationToken.None)
};
sw.Stop();
GlobalPerf.BlobRead(sw.ElapsedTicks, result.bytes.Count);
return(result);
}
public ImageJobInfo(HttpContext context, ImageflowMiddlewareOptions options, BlobProvider blobProvider)
{
this.options = options;
Authorized = ProcessRewritesAndAuthorization(context, options);
if (!Authorized)
{
return;
}
HasParams = PathHelpers.SupportedQuerystringKeys.Any(FinalQuery.ContainsKey);
var extension = Path.GetExtension(FinalVirtualPath);
if (FinalQuery.TryGetValue("format", out var newExtension))
{
extension = newExtension;
}
EstimatedFileExtension = PathHelpers.SanitizeImageExtension(extension) ?? "jpg";
primaryBlob = new BlobFetchCache(FinalVirtualPath, blobProvider);
allBlobs = new List <BlobFetchCache>(1)
{
primaryBlob
};
appliedWatermarks = new List <NamedWatermark>();
if (HasParams)
{
CommandString = PathHelpers.SerializeCommandString(FinalQuery);
// Look up watermark names
if (FinalQuery.TryGetValue("watermark", out var watermarkValues))
{
var watermarkNames = watermarkValues.Split(",").Select(s => s.Trim(' '));
foreach (var name in watermarkNames)
{
var watermark = options.NamedWatermarks.FirstOrDefault(w =>
w.Name.Equals(name, StringComparison.OrdinalIgnoreCase));
if (watermark == null)
{
throw new InvalidOperationException(
$"watermark {name} was referenced from the querystring but no watermark by that name is registered with the middleware");
}
appliedWatermarks.Add(watermark);
}
}
}
// After we've populated the defaults, run the event handlers for custom watermarking logic
var args = new WatermarkingEventArgs(context, FinalVirtualPath, FinalQuery, appliedWatermarks);
foreach (var handler in options.Watermarking)
{
var matches = string.IsNullOrEmpty(handler.PathPrefix) ||
FinalVirtualPath.StartsWith(handler.PathPrefix, StringComparison.OrdinalIgnoreCase);
if (matches)
{
handler.Handler(args);
}
}
appliedWatermarks = args.AppliedWatermarks;
// Add the watermark source files
foreach (var w in appliedWatermarks)
{
allBlobs.Add(new BlobFetchCache(w.VirtualPath, blobProvider));
}
provider = blobProvider;
}
public ImageJobInfo(HttpContext context, ImageflowMiddlewareOptions options, BlobProvider blobProvider)
{
this.options = options;
Authorized = ProcessRewritesAndAuthorization(context, options);
if (!Authorized)
{
return;
}
HasParams = PathHelpers.SupportedQuerystringKeys.Any(FinalQuery.ContainsKey);
// Get the image and page domains
ImageDomain = context.Request.Host.Host;
var referer = context.Request.Headers["Referer"].ToString();
if (!string.IsNullOrEmpty(referer) && Uri.TryCreate(referer, UriKind.Absolute, out var result))
{
PageDomain = result.DnsSafeHost;
}
var extension = Path.GetExtension(FinalVirtualPath);
if (FinalQuery.TryGetValue("format", out var newExtension))
{
extension = newExtension;
}
EstimatedFileExtension = PathHelpers.SanitizeImageExtension(extension) ?? "jpg";
primaryBlob = new BlobFetchCache(FinalVirtualPath, blobProvider);
allBlobs = new List <BlobFetchCache>(1)
{
primaryBlob
};
appliedWatermarks = new List <NamedWatermark>();
if (HasParams)
{
if (options.Licensing.RequestNeedsEnforcementAction(context.Request))
{
if (options.EnforcementMethod == EnforceLicenseWith.RedDotWatermark)
{
FinalQuery["watermark_red_dot"] = "true";
}
LicenseError = true;
}
CommandString = PathHelpers.SerializeCommandString(FinalQuery);
// Look up watermark names
if (FinalQuery.TryGetValue("watermark", out var watermarkValues))
{
var watermarkNames = watermarkValues.Split(",").Select(s => s.Trim(' '));
foreach (var name in watermarkNames)
{
var watermark = options.NamedWatermarks.FirstOrDefault(w =>
w.Name.Equals(name, StringComparison.OrdinalIgnoreCase));
if (watermark == null)
{
throw new InvalidOperationException(
$"watermark {name} was referenced from the querystring but no watermark by that name is registered with the middleware");
}
appliedWatermarks.Add(watermark);
}
}
}
// After we've populated the defaults, run the event handlers for custom watermarking logic
var args = new WatermarkingEventArgs(context, FinalVirtualPath, FinalQuery, appliedWatermarks);
foreach (var handler in options.Watermarking)
{
var matches = string.IsNullOrEmpty(handler.PathPrefix) ||
(FinalVirtualPath != null &&
FinalVirtualPath.StartsWith(handler.PathPrefix, StringComparison.OrdinalIgnoreCase));
if (matches)
{
handler.Handler(args);
}
}
appliedWatermarks = args.AppliedWatermarks;
if (appliedWatermarks.Count > 0)
{
HasParams = true;
}
// Add the watermark source files
foreach (var w in appliedWatermarks)
{
allBlobs.Add(new BlobFetchCache(w.VirtualPath, blobProvider));
}
}
