public string ToQueryStringFragment(NameValueCollection additionalParameters, bool includeHMAC = true)
{
NameValueCollection nameValueCollection = new NameValueCollection();
if (this.KeyVersion > 1)
{
nameValueCollection.Add("pt", ((int)this.PayloadType).ToString(NumberFormatInfo.InvariantInfo));
}
else
{
CryptoKeyPayloadType payloadType = this.PayloadType;
if (payloadType != CryptoKeyPayloadType.SvmFeedbackEncryption)
{
throw new InvalidOperationException(string.Format("Key of type {0} is not supported by legacy payloads, Key version must be greater than 1", Enum.GetName(typeof(CryptoKeyPayloadType), this.PayloadType)));
}
AuthkeyAuthenticationRequest.SignedUrl.LegacyPayloadType legacyPayloadType = AuthkeyAuthenticationRequest.SignedUrl.LegacyPayloadType.SvmFeedback;
NameValueCollection nameValueCollection2 = nameValueCollection;
string name = "pt";
int num = (int)legacyPayloadType;
nameValueCollection2.Add(name, num.ToString(NumberFormatInfo.InvariantInfo));
}
nameValueCollection.Add("kv", this.KeyVersion.ToString(NumberFormatInfo.InvariantInfo));
nameValueCollection.Add("ts", this.UtcTimestamp.ToFileTimeUtc().ToString(NumberFormatInfo.InvariantInfo));
nameValueCollection.Add("iv", AuthkeyAuthenticationRequest.UrlEncodeBase64String(Convert.ToBase64String(this.InitializationVector)));
nameValueCollection.Add("authKey", AuthkeyAuthenticationRequest.UrlEncodeBase64String(Convert.ToBase64String(this.Payload)));
if (includeHMAC && this.MessageAuthenticationCode != null)
{
nameValueCollection.Add("hmac", AuthkeyAuthenticationRequest.UrlEncodeBase64String(Convert.ToBase64String(this.MessageAuthenticationCode)));
}
if (additionalParameters != null)
{
nameValueCollection.Add(additionalParameters);
}
return(AuthkeyAuthenticationRequest.ConstructQueryString(nameValueCollection));
}
private FblRequestParameters DecryptAndParseUrlParameters(string queryParams)
{
if (string.IsNullOrEmpty(queryParams))
{
return(null);
}
NameValueCollection encryptedQueryString = HttpUtility.ParseQueryString(queryParams);
NameValueCollection queryParams2 = AuthkeyAuthenticationRequest.DecryptSignedUrl(encryptedQueryString);
return(new FblRequestParameters(queryParams2));
}
public FblRequestParameters(NameValueCollection queryParams)
{
if (!string.IsNullOrEmpty(queryParams["pd"]) && !ulong.TryParse(HttpUtility.UrlDecode(queryParams["pd"]), out this.Puid))
{
this.Puid = 0UL;
}
if (!string.IsNullOrEmpty(queryParams["aid"]))
{
this.PrimaryEmail = HttpUtility.UrlDecode(queryParams["aid"]);
}
this.CustomerGuid = new Guid(Convert.FromBase64String(AuthkeyAuthenticationRequest.UrlDecodeBase64String(queryParams["cid"])));
this.MessageClass = HttpUtility.UrlDecode(queryParams["mc"]);
this.MailGuid = new Guid(Convert.FromBase64String(AuthkeyAuthenticationRequest.UrlDecodeBase64String(queryParams["mg"])));
this.OptIn = "1".Equals(queryParams["opt"]);
}
public string ToQueryStringFragment()
{
NameValueCollection nameValueCollection = new NameValueCollection();
if (this.Puid != 0UL)
{
nameValueCollection.Add("pd", this.Puid.ToString());
}
if (!string.IsNullOrEmpty(this.PrimaryEmail))
{
nameValueCollection.Add("aid", this.PrimaryEmail);
}
nameValueCollection.Add("cid", AuthkeyAuthenticationRequest.UrlEncodeBase64String(Convert.ToBase64String(this.CustomerGuid.ToByteArray())));
nameValueCollection.Add("mc", this.MessageClass);
nameValueCollection.Add("mg", AuthkeyAuthenticationRequest.UrlEncodeBase64String(Convert.ToBase64String(this.MailGuid.ToByteArray())));
nameValueCollection.Add("opt", this.OptIn ? "1" : "0");
return(AuthkeyAuthenticationRequest.ConstructQueryString(nameValueCollection));
}
public SignedUrl(NameValueCollection queryString)
{
this.KeyVersion = byte.Parse(queryString["kv"], NumberFormatInfo.InvariantInfo);
if (this.KeyVersion > 1)
{
this.PayloadType = (CryptoKeyPayloadType)int.Parse(queryString["pt"], NumberFormatInfo.InvariantInfo);
}
else
{
AuthkeyAuthenticationRequest.SignedUrl.LegacyPayloadType legacyPayloadType = (AuthkeyAuthenticationRequest.SignedUrl.LegacyPayloadType) int.Parse(queryString["pt"], NumberFormatInfo.InvariantInfo);
AuthkeyAuthenticationRequest.SignedUrl.LegacyPayloadType legacyPayloadType2 = legacyPayloadType;
if (legacyPayloadType2 != AuthkeyAuthenticationRequest.SignedUrl.LegacyPayloadType.SvmFeedback)
{
throw new SecurityException("failed to parse query string collection");
}
this.PayloadType = CryptoKeyPayloadType.SvmFeedbackEncryption;
}
this.UtcTimestamp = DateTime.FromFileTimeUtc(long.Parse(queryString["ts"], NumberFormatInfo.InvariantInfo));
this.InitializationVector = Convert.FromBase64String(AuthkeyAuthenticationRequest.UrlDecodeBase64String(queryString["iv"]));
this.Payload = Convert.FromBase64String(AuthkeyAuthenticationRequest.UrlDecodeBase64String(queryString["authKey"]));
this.MessageAuthenticationCode = Convert.FromBase64String(AuthkeyAuthenticationRequest.UrlDecodeBase64String(queryString["hmac"]));
}