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* Add CheckSumGenerator boilerplate files * Add progress loading for the hashing calculation * Refactor compute hash helper * Refactor incorrect variable name * Add HashingHelper unit tests * Update rews files * Add compute hash iterations logic * Short circuit CheckSum if file is null * Disable hashing dropdown while processing Apply code review suggestions * Revert assembly info version * Apply code review changes * Remove ControlsToolKit xaml import
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| #nullable enable | ||
|
|
||
| using System; | ||
| using System.IO; | ||
| using System.Security.Cryptography; | ||
| using System.Threading; | ||
| using System.Threading.Tasks; | ||
| using DevToys.Models; | ||
| using DevToys.Shared.Core; | ||
|
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| namespace DevToys.Helpers | ||
| { | ||
| internal static class HashingHelper | ||
| { | ||
| internal static async Task<byte[]> ComputeHashAsync( | ||
| HashAlgorithm hashAlgorithm, | ||
| Stream stream, | ||
| IProgress<HashingProgress> progress, | ||
| CancellationToken cancellationToken, | ||
| int bufferSize = 1024 * 1024) | ||
| { | ||
| Arguments.NotNull(stream, nameof(stream)); | ||
| Arguments.NotNull(hashAlgorithm, nameof(hashAlgorithm)); | ||
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| byte[] readAheadBuffer = new byte[bufferSize]; | ||
| byte[] buffer; | ||
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| int readAheadBytes = await stream.ReadAsync(readAheadBuffer, 0, bufferSize, cancellationToken); | ||
| int bytesRead; | ||
| long totalBytesRead = readAheadBytes; | ||
|
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| while (readAheadBytes != 0) | ||
| { | ||
| bytesRead = readAheadBytes; | ||
| buffer = readAheadBuffer; | ||
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| readAheadBytes = await stream.ReadAsync(readAheadBuffer, 0, bufferSize, cancellationToken); | ||
| totalBytesRead += readAheadBytes; | ||
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| if (readAheadBytes == 0) | ||
| { | ||
| hashAlgorithm.TransformFinalBlock(buffer, 0, bytesRead); | ||
| } | ||
| else | ||
| { | ||
| hashAlgorithm.TransformBlock(buffer, 0, bytesRead, buffer, 0); | ||
| } | ||
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| progress.Report(new HashingProgress(stream.Length, totalBytesRead)); | ||
| cancellationToken.ThrowIfCancellationRequested(); | ||
| } | ||
| return hashAlgorithm.Hash ?? Array.Empty<byte>(); | ||
| } | ||
|
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| internal static int ComputeHashIterations(Stream stream, int bufferSize = 1024 * 1024) | ||
| { | ||
| Arguments.NotNull(stream, nameof(stream)); | ||
| Arguments.NotZeroOrBelow(bufferSize, nameof(bufferSize)); | ||
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| if(stream.Length == 0) | ||
| { | ||
| return 0; | ||
| } | ||
| else if(bufferSize >= stream.Length) | ||
| { | ||
| return 1; | ||
| } | ||
|
|
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| return (int)(stream.Length / bufferSize); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
|
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| namespace DevToys.Models | ||
| { | ||
| public enum HashingAlgorithm | ||
| { | ||
| MD5, | ||
| SHA1, | ||
| SHA256, | ||
| SHA384, | ||
| SHA512 | ||
| } | ||
| } |
25 changes: 25 additions & 0 deletions
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src/dev/impl/DevToys/Models/HashingAlgorithmDisplayPair.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| using System; | ||
|
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| namespace DevToys.Models | ||
| { | ||
| public sealed class HashingAlgorithmDisplayPair : IEquatable<HashingAlgorithmDisplayPair> | ||
| { | ||
| public static readonly HashingAlgorithmDisplayPair MD5 = new(nameof(MD5), HashingAlgorithm.MD5); | ||
| public static readonly HashingAlgorithmDisplayPair SHA1 = new(nameof(SHA1), HashingAlgorithm.SHA1); | ||
| public static readonly HashingAlgorithmDisplayPair SHA256 = new(nameof(SHA256), HashingAlgorithm.SHA256); | ||
| public static readonly HashingAlgorithmDisplayPair SHA384 = new(nameof(SHA384), HashingAlgorithm.SHA384); | ||
| public static readonly HashingAlgorithmDisplayPair SHA512 = new(nameof(SHA512), HashingAlgorithm.SHA512); | ||
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| public string DisplayName { get; } | ||
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| public HashingAlgorithm Value { get; } | ||
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| private HashingAlgorithmDisplayPair(string displayName, HashingAlgorithm value) | ||
| { | ||
| DisplayName = displayName; | ||
| Value = value; | ||
| } | ||
|
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| public bool Equals(HashingAlgorithmDisplayPair other) => other.Value == Value; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| using System; | ||
|
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| namespace DevToys.Models | ||
| { | ||
| public class HashingProgress | ||
| { | ||
| public long TotalBytes { get; } | ||
| public long CompletedBytes { get; } | ||
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| public int GetPercentage() => (int)Math.Floor(100f * CompletedBytes / TotalBytes); | ||
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| public HashingProgress(long totalBytes, long completedBytes = 0) | ||
| { | ||
| TotalBytes = totalBytes; | ||
| CompletedBytes = completedBytes; | ||
| } | ||
| } | ||
| } |
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