Files
PowerToys/src/modules/launcher/Wox.Infrastructure/Image/ImageHashGenerator.cs
Avneet Kaur ec8ead8183 [fxcop] Wox.Infrastructure (#7590)
* CA1052: Static holder types should be Static or NotInheritable

* CA1041: Provide ObsoleteAttribute message

* CA1062: Validate arguments of public methods

* CA1304: Specify CultureInfo / CA1305: Specify IFormatProvider / CA1307: Specify StringComparison for clarity

* CA1802: Use Literals Where Appropriate

* CA1820: Test for empty strings using string length

* CA1707: Identifiers should not contain underscores

* CA1805: Do not initialize unnecessarily.

* CA1822: Mark members as static

* CA2227: Collection properties should be read only

* CA1054: URI parameters should not be strings

* CA1031: Do not catch general exception types

* CA1060: Move P/Invokes to NativeMethods class

* CA1308: Normalize strings to uppercase

* CA2000: Dispose objects before losing scope / CA2234: Pass System.Uri objects instead of strings

* CA2234: Pass System.Uri objects instead of strings

* CA1044: Properties should not be write only

* CA1716: Identifiers should not match keywords

* CA2007: Do not directly await a Task

* CA2007: Do not directly await a Task (Suppressed)

* CA5350: Do Not Use Weak Cryptographic Algorithms (Suppressed)

* CA1724: Type names should not match namespaces (renamed Settings.cs to PowerToysRunSettings.cs)

* CA1033: Interface methods should be callable by child types (Added sealed modifier to class)

* CA1724: Type names should not match namespaces (Renamed Plugin.cs to RunPlugin.cs)

* CA1724: Type names should not match namespaces (Renamed Http.cs to HttpClient.cs)

* CA5364: Do not use deprecated security protocols (Remove unused code)

* Enabled FxCopAnalyzer for Wox.Infrastructure

* fixed comment

* Addressed comments

- Changed Ordinal to InvariantCulture
- Added comments
- Removed unused obsolete code
- Removed unused method (CA2007: Do not directly await a Task)

* Addressed comments - fixed justification for CA1031 suppression

* Addressed comments - Fixed justification for CA1031 suppression in Wox.Core/Wox.Plugin
2020-10-29 17:52:35 -07:00

53 lines
2.1 KiB
C#

// Copyright (c) Microsoft Corporation
// The Microsoft Corporation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.IO;
using System.Reflection;
using System.Security.Cryptography;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using Wox.Plugin.Logger;
namespace Wox.Infrastructure.Image
{
public class ImageHashGenerator : IImageHashGenerator
{
[System.Diagnostics.CodeAnalysis.SuppressMessage("Design", "CA1031:Do not catch general exception types", Justification = "Suppressing this to enable FxCop. We are logging the exception, and going forward general exceptions should not be caught")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Security", "CA5350:Do Not Use Weak Cryptographic Algorithms", Justification = "Level of protection needed for the image data does not require a security guarantee")]
public string GetHashFromImage(ImageSource imageSource)
{
if (!(imageSource is BitmapSource image))
{
return null;
}
try
{
using (var outStream = new MemoryStream())
{
// PngBitmapEncoder enc2 = new PngBitmapEncoder();
// enc2.Frames.Add(BitmapFrame.Create(tt));
var enc = new JpegBitmapEncoder();
var bitmapFrame = BitmapFrame.Create(image);
bitmapFrame.Freeze();
enc.Frames.Add(bitmapFrame);
enc.Save(outStream);
var byteArray = outStream.GetBuffer();
using (var sha1 = new SHA1CryptoServiceProvider())
{
var hash = Convert.ToBase64String(sha1.ComputeHash(byteArray));
return hash;
}
}
}
catch (System.Exception e)
{
Log.Exception($"Failed to get hash from image", e, MethodBase.GetCurrentMethod().DeclaringType);
return null;
}
}
}
}