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feat(CryptFactory): ValidateForbidden ve ValidateSeparator Methoden in DefaultRSADecryptorKeyFormatter hinzugefügt

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Developer 02 2024-11-20 15:13:05 +01:00
parent 5c5a6bd181
commit 49b49271f3
1 changed files with 32 additions and 5 deletions
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37
DigitalData.Core.Security/CryptFactory.cs
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@ -23,8 +23,38 @@ namespace DigitalData.Core.Security
public bool TryGetRSADecryptor(string key, out IRSADecryptor? decryptor) => _decryptors.TryGetValue(key, out decryptor);
public static readonly string DefaultEncryptedPrivateKeyFileTag = "enc-private";
public static readonly string DefaultPrivateKeyFileTag = "private";
public static readonly string DefaultPublicKeyFileTag = "public";
public static readonly IEnumerable<string> KeyFileTags = new string[] { DefaultEncryptedPrivateKeyFileTag, DefaultPrivateKeyFileTag, DefaultPublicKeyFileTag };
private static readonly Lazy<IEnumerable<string>> LazyLowerFileTags = new(() => KeyFileTags.Select(tag => tag.ToLower()));
//TODO: make the validation using regex
public static string DefaultRSADecryptorKeyFormatter(IRSADecryptor decryptor, string issuer, string audience, string separator = "-_-")
{
{
void ValidateForbidden(string value, string paramName)
{
if (Path.GetInvalidFileNameChars().Any(value.Contains) || LazyLowerFileTags.Value.Any(tag => value.ToLower().Contains(tag)))
throw new ArgumentException($"RSA decryptor key name creation is forbidden. The {paramName} contains forbidden characters that are not allowed in file naming.", paramName);
}
static void ValidateSeparator(string value, string paramName, string separator)
{
if (value.Contains(separator))
throw new ArgumentException($"RSA decryptor key name creation is forbidden. The {paramName} contains separator characters ({separator}) that are not allowed in file naming.", paramName);
}
ValidateForbidden(issuer, nameof(issuer));
ValidateForbidden(audience, nameof(audience));
ValidateForbidden(separator, nameof(separator));
ValidateSeparator(issuer, nameof(issuer), separator);
ValidateSeparator(audience, nameof(audience), separator);
var sb = new StringBuilder(issuer.Length + audience.Length + separator.Length * 2 + 20);
sb.Append(issuer).Append(separator).Append(audience).Append(separator);
@ -33,10 +63,7 @@ namespace DigitalData.Core.Security
else
sb.Append("private");
var rsaKey = sb.Append(".pem").ToString();
if (Path.GetInvalidFileNameChars().Any(rsaKey.Contains))
throw new ArgumentException("RSA decryptor key name creation is forbidden. The key contains forbidden characters that are not allowed in file naming.", nameof(rsaKey));
var rsaKey = sb.Append(".pem").ToString();
return rsaKey;
}