Class DownloadVerifier

Namespace

McServerLauncher.Services

Assembly

McServerLauncher.dll

Verifies a downloaded file's hash against the checksum an official API (Mojang, Adoptium, Paper) already returns alongside the download URL. On mismatch the file is deleted and an exception is thrown, so a corrupted or tampered download is never silently trusted.

public static class DownloadVerifier

Inheritance

object

DownloadVerifier

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

ComputeHashAsync(string, HashAlgorithmName, CancellationToken)

Computes the hex-encoded hash of a file in a streaming fashion (no full read into memory).

public static Task<string> ComputeHashAsync(string filePath, HashAlgorithmName algorithm, CancellationToken ct = default)

Parameters

filePath string

algorithm HashAlgorithmName

ct CancellationToken

Returns

Task<string>

VerifyAsync(string, string?, HashAlgorithmName, CancellationToken)

Verifies filePath against expectedHex using algorithm (SHA1 or SHA256). A null/empty expected hash means the API didn't provide one for this asset; verification is skipped rather than failing the download.

public static Task VerifyAsync(string filePath, string? expectedHex, HashAlgorithmName algorithm, CancellationToken ct = default)

Parameters

filePath string

expectedHex string

algorithm HashAlgorithmName

ct CancellationToken

Returns

Task