/// <summary>
/// Gets a key based on a filename
/// Please consider security implication of selecting a key - https://www.owasp.org/index.php/Unrestricted_File_Upload
/// </summary>
public string GetKey(string fileName, string contentType, string delimiter)
{
Contract.NotNullOrEmpty(fileName, nameof(fileName));
Contract.NotNullOrEmpty(contentType, nameof(contentType));
string guid = Guid.NewGuid().ToString();
var invalid = Path.GetInvalidFileNameChars().Union(Path.GetInvalidPathChars());
foreach (char c in invalid)
{
fileName = fileName.Replace(c.ToString(), "_");
}
int maxUploadFileNameLength = MaxFileNameLength - UploadExt.Length;
if (fileName.Length > maxUploadFileNameLength)
{
string ext = Path.GetExtension(fileName);
fileName = fileName.Substring(0, maxUploadFileNameLength - ext.Length - TrimmedSuffix.Length);
fileName += TrimmedSuffix + ext;
}
fileName += UploadExt;
string key = KeyUtils.JoinKeys(guid, fileName, delimiter);
return(key);
}
public void Join_Keys(string prefix, string key, string delimiter, string expected)
{
string actual = KeyUtils.JoinKeys(prefix, key, delimiter);
Assert.Equal(expected, actual);
}
private static string GetKey(string key, AmazonS3CabinetConfig config)
{
return(KeyUtils.JoinKeys(config.KeyPrefix, key, config.Delimiter));
}