/// <summary>
/// "Decrypts" uniform string into FileIdentifier instance exposing its path and hash.
/// </summary>
/// <param name="cloakedId"></param>
/// <returns></returns>
public static FileIdentifier Decloak(string cloakedId)
{
cloakedId = Obfuscator.Decloak(cloakedId);
Regex regex = new Regex("(.*)::(.*)");
MatchCollection matches = regex.Matches(cloakedId);
if (matches.Count() != 1)
{
throw new InvalidFileIdentifierException(cloakedId);
}
return(new FileIdentifier
{
Path = matches[0].Groups[1].Value,
Hash = matches[0].Groups[2].Value
});
}
/// <summary>
/// Gets a list of all tags from tag index folder. Tags are not read from package manifests.
/// </summary>
/// <returns></returns>
public IEnumerable<string> GetAllTags()
{
string[] rawTags = Directory.GetDirectories(_settings.TagsPath);
List<string> tags = new List<string>();
foreach (string rawTag in rawTags)
{
try
{
tags.Add(Obfuscator.Decloak(Path.GetFileName(rawTag)));
}
catch (FormatException)
{
// log invalid tag folders, and continue.
_logger.LogError($"The tag \"{rawTag}\" is not a valid base64 string. This node in the tags folder should be pruned out.");
}
}
return tags;
}
/// <summary>
/// Gets a list of all tags, and all packages tagged by each tag.
/// </summary>
/// <returns></returns>
public Dictionary<string, IEnumerable<string>> GetTagsThenPackages()
{
string[] rawTags = Directory.GetDirectories(_settings.TagsPath);
Dictionary<string, IEnumerable<string>> tags = new Dictionary<string, IEnumerable<string>>();
foreach (string rawTag in rawTags)
{
try
{
IEnumerable<string> packages = Directory.GetFiles(rawTag).Select(r => Path.GetFileName(r));
tags.Add(Obfuscator.Decloak(Path.GetFileName(rawTag)), packages);
}
catch (FormatException)
{
// log invalid tag folders, and continue.
_logger.LogError($"The tag \"{rawTag}\" is not a valid base64 string. This node in the tags folder should be pruned out.");
}
}
return tags;
}