public IReadOnlyCollection GetAllElements()

in src/Azure.WebSites.DataProtection/AzureWebsitesXmlRepository.cs [53:93]

• 30 lines of code
• 7 McCabe index (conditional complexity)

        public IReadOnlyCollection<XElement> GetAllElements()
        {
            var keys = new List<CryptographicKey>();

            CryptographicKey primaryKey = GetReferencedKey(AzureWebsitePrimaryEncryptionKeyId);

            if (primaryKey != null)
            {
                keys.Add(primaryKey);
            }

            // Add our default key. If a primary key is not specified, this implicitly becomes
            // the primary (default) key.
            byte[] defaultKeyValue = GetDefaultKey();
            if (defaultKeyValue != null)
            {
                var defaultKey = new CryptographicKey(DefaultKeyId, defaultKeyValue);
                keys.Add(defaultKey);
            }

            // Get other defined keys
            var definedKeys = Environment.GetEnvironmentVariables();

            foreach (var key in definedKeys.Keys)
            {
                Guid keyId;
                Match match = KeySettingNameRegex.Match(key.ToString());
                if (match.Success && Guid.TryParse(match.Groups["keyid"].Value, out keyId) && !keys.Any(k => k.Id == keyId))
                {
                    byte[] value = Util.ConvertHexToByteArray(definedKeys[key].ToString());

                    var cryptoKey = new CryptographicKey(keyId, value);

                    keys.Add(cryptoKey);
                }
            }

            return keys.Select((k, i) => CreateKeyElement(k, i))
                .ToList()
                .AsReadOnly();
        }