ImageResizer.Plugins.RemoteReader 4.0.0-prerelease0877

The RemoteReader plugin allows the ImageResizer to resize and display images that are located at arbitrary URLs. Kind of like a resizing relay.

There are 3 layers of security to prevent abuse.

1. The API signs the remote url with HMAC SHA-256 to prevent anyone from tampering or generating them without access to the signing key.
2. A whitelist approach is taken to sites. By default, no sites are allowed. You must handle the RemoteReaderPlugin.Current.AllowRemoteRequest event to permit sites (or portions of sites) to be relayed.
4. The  plugin requires that all remote images be decoded and re-encoded. Files are never returned as-is. This ensures that the files are valid images, and prevents XSS attacks.

Please note, you must configure the <remotereader signingKey="to a long and secure pass phrase" /> and set <remotereader allowAllSignedRequests="true" /> if all code calling RemoteReaderPlugin.Current.CreateSignedUrl(remoteUrl,settings) is trusted.


Docs: http://imageresizing.net/plugins/remotereader

Support: http://imageresizing.net/support

Requires license, see http://imageresizing.net/plugins

## 30+ plugins available

Search 'ImageResizer' on nuget.org, or visit imageresizing.net to see 40+ plugins. Some offer 4-30x performance improvements; some render PDFs and PSDs; others detect faces and trim whitespace.
You'll find  plugins for disk caching, memory caching, Microsoft SQL blob support, Amazon CloudFront, S3, Azure Blob Storage, MongoDB GridFS, automatic whitespace trimming, automatic white balance, octree 8-bit gif/png quantization and transparency dithering, animated gif resizing, watermark & text overlay support, content aware image resizing / seam carving (based on CAIR), grayscale, sepia, histogram, alpha, contrast, saturation, brightness, hue, Guassian blur, noise removal, and smart sharpen filters, psd editing & rendering, raw (CR2, NEF, DNG, etc.) file exposure, .webp (weppy) support, image batch processing & compression into .zip archives, red eye auto-correction,  face detection, and secure (signed!) remote HTTP image processing. Most datastore plugins support the Virtual Path Provider system, and can be used for non-image files as well.