private static void BuildKrbApReq(KrbApReq krbApReq, Asn1Node asn1Node)
{
Asn1Node childNode1 = asn1Node.GetChildNode(0);
for (int index = 0; (long)index < childNode1.ChildNodeCount; ++index)
{
Asn1Node childNode2 = childNode1.GetChildNode(index);
switch (KerberosAuthorizeMessageBuilder.GetContextNumber(childNode2))
{
case 0:
krbApReq.ProtocolVersionNumber = (int)Asn1Util.BytesToLong(childNode2.GetChildNode(0).Data);
break;
case 1:
krbApReq.MessageType = (MessageType)Asn1Util.BytesToLong(childNode2.GetChildNode(0).Data);
break;
case 2:
krbApReq.APOptions = (APOptions)Asn1Util.BytesToLong(childNode2.GetChildNode(0).Data);
break;
case 3:
krbApReq.Ticket = new Ticket();
KerberosAuthorizeMessageBuilder.BuildTicket(krbApReq.Ticket, childNode2);
break;
case 4:
krbApReq.Authenticator = new EncryptedData();
KerberosAuthorizeMessageBuilder.BuildEncryptedData(krbApReq.Authenticator, childNode2);
break;
}
}
}
/**
* Parses an DER encoded RSA public key:
* It will only try to get the mod and the exponent
*/
private RSACryptoServiceProvider ParseNode(Asn1Node n)
{
if ((n.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.SEQUENCE &&
n.ChildNodeCount == 2 &&
(n.GetChildNode(0).Tag & Asn1Tag.TAG_MASK) == Asn1Tag.SEQUENCE &&
(n.GetChildNode(0).GetChildNode(0).Tag & Asn1Tag.TAG_MASK) == Asn1Tag.OBJECT_IDENTIFIER &&
n.GetChildNode(0).GetChildNode(0).GetDataStr(false) == "1.2.840.113549.1.1.1" &&
(n.GetChildNode(1).Tag & Asn1Tag.TAG_MASK) == Asn1Tag.BIT_STRING)
{
var seq = n.GetChildNode(1).GetChildNode(0);
if (seq.ChildNodeCount == 2)
{
byte[] data = seq.GetChildNode(0).Data;
byte[] rawMod = new byte[data.Length - 1];
System.Array.Copy(data, 1, rawMod, 0, data.Length - 1);
var modulus = System.Convert.ToBase64String(rawMod);
var exponent = System.Convert.ToBase64String(seq.GetChildNode(1).Data);
var result = new RSACryptoServiceProvider();
result.FromXmlString(ToXML(modulus, exponent));
return(result);
}
}
throw new InvalidRSAData();
}
private static void BuildTicket(Ticket ticket, Asn1Node asn1Node)
{
Asn1Node childNode1 = asn1Node.GetChildNode(0).GetChildNode(0);
for (int index = 0; (long)index < childNode1.ChildNodeCount; ++index)
{
Asn1Node childNode2 = childNode1.GetChildNode(index);
switch (KerberosAuthorizeMessageBuilder.GetContextNumber(childNode2))
{
case 0:
ticket.TicketVersionNumber = (int)Asn1Util.BytesToLong(childNode2.GetChildNode(0).Data);
break;
case 1:
ticket.Realm = childNode2.GetChildNode(0).GetDataStr(false);
break;
case 2:
ticket.ServiceName = new PrincipalName();
KerberosAuthorizeMessageBuilder.BuildPrincipleName(ticket.ServiceName, childNode2);
break;
case 3:
ticket.EncPart = new EncryptedData();
KerberosAuthorizeMessageBuilder.BuildEncryptedData(ticket.EncPart, childNode2);
break;
}
}
}
private void ParseNode(Asn1Node root)
{
if ((root.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.SEQUENCE || root.ChildNodeCount != 3)
{
throw new InvalidX509Data();
}
// TBS cert
TbsCertificate = root.GetChildNode(0);
if (TbsCertificate.ChildNodeCount < 7)
{
throw new InvalidX509Data();
}
rawTBSCertificate = new byte[TbsCertificate.DataLength + 4];
Array.Copy(root.Data, 0, rawTBSCertificate, 0, rawTBSCertificate.Length);
// get the serial number
Asn1Node sn = TbsCertificate.GetChildNode(1);
if ((sn.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.INTEGER)
{
throw new InvalidX509Data();
}
SerialNumber = Asn1Util.ToHexString(sn.Data);
// get the issuer
Issuer = new DistinguishedName(TbsCertificate.GetChildNode(3));
// get the subject
Subject = new DistinguishedName(TbsCertificate.GetChildNode(5));
// get the dates
Asn1Node validTimes = TbsCertificate.GetChildNode(4);
if ((validTimes.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.SEQUENCE || validTimes.ChildNodeCount != 2)
{
throw new InvalidX509Data();
}
ValidAfter = ParseTime(validTimes.GetChildNode(0));
ValidBefore = ParseTime(validTimes.GetChildNode(1));
// is this self signed?
SelfSigned = Subject.Equals(Issuer);
// get the pub key
PubKey = new RSAKey(TbsCertificate.GetChildNode(6));
// set the tbs cert & signature data for signature verification
Signature = root.GetChildNode(2);
}
private Asn1Node GetSetNode(Asn1Node data)
{
if (data.IsIndefiniteLength && data.ChildNodeCount == 1)
{
// Explanation: Receipts received from the iOS StoreKit Testing encodes the receipt data one layer deeper than expected.
// It also has nodes with "Indeterminate" or "Undefined" length, including the node in question.
// Failing to go one node deeper will result in an unparsed receipt.
var intermediateNode = data.GetChildNode(0);
return(intermediateNode.GetChildNode(0));
}
else
{
return(data.GetChildNode(0));
}
}
private static string getStringFromSubNode(Asn1Node nn)
{
string dataStr = null;
if ((nn.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.OCTET_STRING && nn.ChildNodeCount > 0)
{
Asn1Node n = nn.GetChildNode(0);
switch (n.Tag & Asn1Tag.TAG_MASK)
{
case Asn1Tag.PRINTABLE_STRING:
case Asn1Tag.IA5_STRING:
case Asn1Tag.UNIVERSAL_STRING:
case Asn1Tag.VISIBLE_STRING:
case Asn1Tag.NUMERIC_STRING:
case Asn1Tag.UTC_TIME:
case Asn1Tag.UTF8_STRING:
case Asn1Tag.BMPSTRING:
case Asn1Tag.GENERAL_STRING:
case Asn1Tag.GENERALIZED_TIME:
{
if ((n.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.UTF8_STRING)
{
UTF8Encoding unicode = new UTF8Encoding();
dataStr = unicode.GetString(n.Data);
}
else
{
dataStr = Asn1Util.BytesToString(n.Data);
}
}
break;
}
}
return(dataStr);
}
private AppleReceipt ParseReceipt(Asn1Node data)
{
if (data == null || data.ChildNodeCount != 1)
{
throw new InvalidPKCS7Data();
}
Asn1Node set = GetSetNode(data);
var result = new AppleReceipt();
var inApps = new List <AppleInAppPurchaseReceipt> ();
for (int t = 0; t < set.ChildNodeCount; t++)
{
var node = set.GetChildNode(t);
// Each node should contain three children.
if (node.ChildNodeCount == 3)
{
var type = Asn1Util.BytesToLong(node.GetChildNode(0).Data);
var value = node.GetChildNode(2);
// See https://developer.apple.com/library/ios/releasenotes/General/ValidateAppStoreReceipt/Chapters/ReceiptFields.html#//apple_ref/doc/uid/TP40010573-CH106-SW1
switch (type)
{
case 2:
result.bundleID = Encoding.UTF8.GetString(value.GetChildNode(0).Data);
break;
case 3:
result.appVersion = Encoding.UTF8.GetString(value.GetChildNode(0).Data);
break;
case 4:
result.opaque = value.Data;
break;
case 5:
result.hash = value.Data;
break;
case 12:
var dateString = Encoding.UTF8.GetString(value.GetChildNode(0).Data);
result.receiptCreationDate = DateTime.Parse(dateString).ToUniversalTime();
break;
case 17:
inApps.Add(ParseInAppReceipt(value.GetChildNode(0)));
break;
case 19:
result.originalApplicationVersion = Encoding.UTF8.GetString(value.GetChildNode(0).Data);
break;
}
}
}
result.inAppPurchaseReceipts = inApps.ToArray();
return(result);
}
private static void BuildNegotiateTokenInit(NegTokenInit negToken, Asn1Node sequence)
{
for (int index = 0; (long)index < sequence.ChildNodeCount; ++index)
{
switch (KerberosAuthorizeMessageBuilder.GetContextNumber(sequence.GetChildNode(index)))
{
case 0:
KerberosAuthorizeMessageBuilder.BuildMechTypes(negToken, sequence.GetChildNode(index));
break;
case 2:
negToken.MechToken = new InitialContextToken();
KerberosAuthorizeMessageBuilder.BuildMechToken(negToken.MechToken, sequence.GetChildNode(index));
break;
}
}
}
private static void BuildMechTypes(NegTokenInit negToken, Asn1Node asn1Node)
{
if (asn1Node.ChildNodeCount <= 0L)
{
return;
}
Asn1Node childNode = asn1Node.GetChildNode(0);
negToken.MechTypes = new List <MechType>();
for (int index = 0; (long)index < childNode.ChildNodeCount; ++index)
{
if (((int)childNode.GetChildNode(index).Tag & 31) == 6)
{
negToken.MechTypes.Add(new MechType(childNode.GetChildNode(index).GetDataStr(false)));
}
}
}
private static void BuildPrincipleNameList(List <string> list, Asn1Node asn1Node)
{
Asn1Node childNode = asn1Node.GetChildNode(0);
for (int index = 0; (long)index < childNode.ChildNodeCount; ++index)
{
list.Add(childNode.GetChildNode(index).GetDataStr(false));
}
}
/// <summary>
/// Try and parse a DateTime, returning the minimum DateTime on failure.
/// </summary>
private static DateTime TryParseDateTimeNode(Asn1Node node)
{
var dateString = Encoding.UTF8.GetString(node.GetChildNode(0).Data);
if (!string.IsNullOrEmpty(dateString))
{
return(DateTime.Parse(dateString).ToUniversalTime());
}
return(DateTime.MinValue);
}
private static void BuildMechToken(InitialContextToken initialContextToken, Asn1Node asn1Node)
{
Asn1Node childNode = asn1Node.GetChildNode(0).GetChildNode(0);
for (int index = 0; (long)index < childNode.ChildNodeCount; ++index)
{
if (((int)childNode.GetChildNode(index).Tag & 192) != 0)
{
if (((int)childNode.GetChildNode(index).Tag & 192) == 64)
{
initialContextToken.InnerContextToken = new KrbApReq();
KerberosAuthorizeMessageBuilder.BuildKrbApReq(initialContextToken.InnerContextToken, childNode.GetChildNode(index));
}
}
else if (((int)childNode.GetChildNode(index).Tag & 31) == 6)
{
initialContextToken.ThisMech = new MechType(childNode.GetChildNode(index).GetDataStr(false));
}
}
}
public SignerInfo(Asn1Node n)
{
if (n.ChildNodeCount != 5)
{
throw new InvalidPKCS7Data();
}
Asn1Node tt;
// version
tt = n.GetChildNode(0);
if ((tt.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.INTEGER)
{
throw new InvalidPKCS7Data();
}
Version = tt.Data[0];
if (Version != 1 || tt.Data.Length != 1)
{
throw new UnsupportedSignerInfoVersion();
}
// get the issuer SN
tt = n.GetChildNode(1);
if ((tt.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.SEQUENCE || tt.ChildNodeCount != 2)
{
throw new InvalidPKCS7Data();
}
tt = tt.GetChildNode(1);
if ((tt.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.INTEGER)
{
throw new InvalidPKCS7Data();
}
IssuerSerialNumber = Asn1Util.ToHexString(tt.Data);
// get the data
tt = n.GetChildNode(4);
if ((tt.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.OCTET_STRING)
{
throw new InvalidPKCS7Data();
}
EncryptedDigest = tt.Data;
}
public int GetIntegerFromNode(Asn1Node nn)
{
int retval = -1;
if ((nn.Tag & Asn1Type.Date) == Asn1Type.OctetString && nn.ChildNodeCount > 0)
{
Asn1Node n = nn.GetChildNode(0);
if ((n.Tag & Asn1Type.Date) == Asn1Type.Integer)
{
retval = (int)_utilities.BytesToLong(n.Data);
}
}
return(retval);
}
private static int getIntegerFromSubNode(Asn1Node nn)
{
int retval = -1;
if ((nn.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.OCTET_STRING && nn.ChildNodeCount > 0)
{
Asn1Node n = nn.GetChildNode(0);
if ((n.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.INTEGER)
{
retval = (int)Asn1Util.BytesToLong(n.Data);
}
}
return(retval);
}
private static void BuildEncryptedData(EncryptedData encryptedData, Asn1Node asn1Node)
{
Asn1Node childNode1 = asn1Node.GetChildNode(0);
for (int index = 0; (long)index < childNode1.ChildNodeCount; ++index)
{
Asn1Node childNode2 = childNode1.GetChildNode(index);
switch (KerberosAuthorizeMessageBuilder.GetContextNumber(childNode2))
{
case 0:
encryptedData.EncryptionType = (EncryptionType)Asn1Util.BytesToLong(childNode2.GetChildNode(0).Data);
break;
case 1:
encryptedData.KeyVersionNumber = new uint?((uint)Asn1Util.BytesToLong(childNode2.GetChildNode(0).Data));
break;
case 2:
encryptedData.Cipher = new byte[childNode2.GetChildNode(0).DataLength];
Buffer.BlockCopy((Array)childNode2.GetChildNode(0).Data, 0, (Array)encryptedData.Cipher, 0, encryptedData.Cipher.Length);
break;
}
}
}
private static void BuildPrincipleName(PrincipalName principalName, Asn1Node asn1Node)
{
Asn1Node childNode1 = asn1Node.GetChildNode(0);
for (int index = 0; (long)index < childNode1.ChildNodeCount; ++index)
{
Asn1Node childNode2 = childNode1.GetChildNode(index);
switch (KerberosAuthorizeMessageBuilder.GetContextNumber(childNode2))
{
case 0:
principalName.NameType = (PrincipalNameType)Asn1Util.BytesToLong(childNode2.GetChildNode(0).Data);
break;
case 1:
principalName.NameString = new List <string>();
KerberosAuthorizeMessageBuilder.BuildPrincipleNameList(principalName.NameString, childNode2);
break;
}
}
}
private static void BuildRoot(KerberosAuthorizeMessage msg, Asn1Node root)
{
if (root.ChildNodeCount == 2L)
{
Asn1Node childNode = root.GetChildNode(0);
if (((int)childNode.Tag & 31) != 6)
{
throw new Exception("OBJECT_IDENTIFIER expected. (path: " + childNode.Path + ")");
}
msg.MechType = new MechType(childNode.GetDataStr(false));
msg.NegotiationToken = (NegotiationToken) new NegTokenInit();
KerberosAuthorizeMessageBuilder.BuildNegotiateTokenInit((NegTokenInit)msg.NegotiationToken, root.GetChildNode(1).GetChildNode(0));
}
else
{
if (root.ChildNodeCount != 1L)
{
return;
}
msg.NegotiationToken = (NegotiationToken) new NegTokenInit();
KerberosAuthorizeMessageBuilder.BuildNegotiateTokenInit((NegTokenInit)msg.NegotiationToken, root.GetChildNode(0));
}
}
public string?GetStringFromNode(Asn1Node nn)
{
string dataStr = null;
if ((nn.Tag & Asn1Type.Date) == Asn1Type.OctetString && nn.ChildNodeCount > 0)
{
var n = nn.GetChildNode(0);
switch (n.Tag & Asn1Type.Date)
{
case Asn1Type.PrintableString:
case Asn1Type.Ia5String:
case Asn1Type.UniversalString:
case Asn1Type.VisibleString:
case Asn1Type.NumericString:
case Asn1Type.UtcTime:
case Asn1Type.Utf8String:
case Asn1Type.Bmpstring:
case Asn1Type.GeneralString:
case Asn1Type.GeneralizedTime:
{
if ((n.Tag & Asn1Type.Date) == Asn1Type.Utf8String)
{
var unicode = new UTF8Encoding();
dataStr = unicode.GetString(n.Data);
}
else
{
dataStr = Encoding.ASCII.GetString(n.Data);
}
}
break;
}
}
return(dataStr);
}
private void CheckStructure()
{
validStructure = false;
if ((root.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.SEQUENCE &&
root.ChildNodeCount == 2)
{
Asn1Node tt = root.GetChildNode(0);
if ((tt.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.OBJECT_IDENTIFIER ||
tt.GetDataStr(false) != "1.2.840.113549.1.7.2")
{
throw new InvalidPKCS7Data();
}
tt = root.GetChildNode(1); // [0]
if (tt.ChildNodeCount != 1)
{
throw new InvalidPKCS7Data();
}
int curChild = 0;
tt = tt.GetChildNode(curChild++); // Seq
if (tt.ChildNodeCount < 4 || (tt.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.SEQUENCE)
{
throw new InvalidPKCS7Data();
}
Asn1Node tt2 = tt.GetChildNode(0); // version
if ((tt2.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.INTEGER)
{
throw new InvalidPKCS7Data();
}
tt2 = tt.GetChildNode(curChild++); // digest algo
// TODO: check algo
if ((tt2.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.SET)
{
throw new InvalidPKCS7Data();
}
tt2 = tt.GetChildNode(curChild++); // pkcs7 data
if ((tt2.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.SEQUENCE && tt2.ChildNodeCount != 2)
{
throw new InvalidPKCS7Data();
}
data = tt2.GetChildNode(1).GetChildNode(0);
if (tt.ChildNodeCount == 5)
{
// cert chain, this is optional
certChain = new List <X509Cert>();
tt2 = tt.GetChildNode(curChild++);
if (tt2.ChildNodeCount == 0)
{
throw new InvalidPKCS7Data();
}
for (int i = 0; i < tt2.ChildNodeCount; i++)
{
certChain.Add(new X509Cert(tt2.GetChildNode(i)));
}
}
tt2 = tt.GetChildNode(curChild++); // signer's info
if ((tt2.Tag & Asn1Tag.TAG_MASK) != Asn1Tag.SET || tt2.ChildNodeCount == 0)
{
throw new InvalidPKCS7Data();
}
sinfos = new List <SignerInfo>();
for (int i = 0; i < tt2.ChildNodeCount; i++)
{
sinfos.Add(new SignerInfo(tt2.GetChildNode(i)));
}
validStructure = true;
}
}
public AppleAppReceipt GetAppleReceiptFromNode(Asn1Node tNode, AppleAppReceipt?receipt = null)
{
receipt ??= new AppleAppReceipt();
var processedNode = false;
if ((tNode.Tag & Asn1Type.Date) == Asn1Type.Sequence && tNode.ChildNodeCount == 3)
{
var node1 = tNode.GetChildNode(0);
var node2 = tNode.GetChildNode(1);
var node3 = tNode.GetChildNode(2);
if ((node1.Tag & Asn1Type.Date) == Asn1Type.Integer &&
(node2.Tag & Asn1Type.Date) == Asn1Type.Integer &&
(node3.Tag & Asn1Type.Date) == Asn1Type.OctetString)
{
processedNode = true;
var asnType = (ReceiptAsnType)_utilities.BytesToLong(node1.Data);
switch (asnType)
{
case ReceiptAsnType.ReceiptType:
receipt.ReceiptType = _nodesParser.GetStringFromNode(node3);
break;
case ReceiptAsnType.BundleIdentifier:
receipt.BundleId = _nodesParser.GetStringFromNode(node3);
break;
case ReceiptAsnType.AppVersion:
receipt.ApplicationVersion = _nodesParser.GetStringFromNode(node3);
break;
case ReceiptAsnType.OpaqueValue:
break;
case ReceiptAsnType.Hash:
break;
case ReceiptAsnType.OriginalAppVersion:
receipt.OriginalApplicationVersion = _nodesParser.GetStringFromNode(node3);
break;
case ReceiptAsnType.ReceiptExpirationDate:
break;
case ReceiptAsnType.ReceiptCreationDate:
receipt.ReceiptCreationDateMs = _nodesParser.GetDateTimeMsFromNode(node3);
break;
case ReceiptAsnType.OriginalPurchaseDate:
receipt.OriginalPurchaseDateMs = _nodesParser.GetDateTimeMsFromNode(node3);
break;
case ReceiptAsnType.InAppPurchaseReceipt:
{
if (node3.ChildNodeCount > 0)
{
var node31 = node3.GetChildNode(0);
if ((node31.Tag & Asn1Type.Date) == Asn1Type.Set && node31.ChildNodeCount > 0)
{
var purchaseReceipt = new AppleInAppPurchaseReceipt();
for (var i = 0; i < node31.ChildNodeCount; i++)
{
var node311 = node31.GetChildNode(i);
if ((node311.Tag & Asn1Type.Date) == Asn1Type.Sequence &&
node311.ChildNodeCount == 3)
{
var node3111 = node311.GetChildNode(0);
var node3112 = node311.GetChildNode(1);
var node3113 = node311.GetChildNode(2);
if ((node3111.Tag & Asn1Type.Date) == Asn1Type.Integer &&
(node3112.Tag & Asn1Type.Date) == Asn1Type.Integer &&
(node3113.Tag & Asn1Type.Date) == Asn1Type.OctetString)
{
var childAsnType = (InAppPurchaseAsnType)_utilities.BytesToLong(node3111.Data);
switch (childAsnType)
{
case InAppPurchaseAsnType.Quantity:
purchaseReceipt.Quantity = _nodesParser.GetIntegerFromNode(node3113).ToString();
break;
case InAppPurchaseAsnType.ProductIdentifier:
purchaseReceipt.ProductId = _nodesParser.GetStringFromNode(node3113);
break;
case InAppPurchaseAsnType.TransactionIdentifier:
purchaseReceipt.TransactionId = _nodesParser.GetStringFromNode(node3113);
break;
case InAppPurchaseAsnType.PurchaseDate:
purchaseReceipt.PurchaseDateMs = _nodesParser.GetDateTimeMsFromNode(node3113);
break;
case InAppPurchaseAsnType.OriginalTransactionIdentifier:
purchaseReceipt.OriginalTransactionId = _nodesParser.GetStringFromNode(node3113);
break;
case InAppPurchaseAsnType.OriginalPurchaseDate:
purchaseReceipt.OriginalPurchaseDateMs = _nodesParser.GetDateTimeMsFromNode(node3113);
break;
case InAppPurchaseAsnType.SubscriptionExpirationDate:
purchaseReceipt.ExpirationDateMs = _nodesParser.GetDateTimeMsFromNode(node3113);
break;
case InAppPurchaseAsnType.WebOrderLineItemId:
purchaseReceipt.WebOrderLineItemId = _nodesParser.GetStringFromNode(node3113);
break;
case InAppPurchaseAsnType.CancellationDate:
purchaseReceipt.CancellationDateMs = _nodesParser.GetDateTimeMsFromNode(node3113);
break;
case InAppPurchaseAsnType.SubscriptionIntroductoryPricePeriod:
purchaseReceipt.IsInIntroOfferPeriod = _nodesParser.GetBoolFromNode(node3113);
break;
default:
break;
}
}
}
}
if (!string.IsNullOrEmpty(purchaseReceipt.ProductId))
{
receipt.PurchaseReceipts.Add(purchaseReceipt);
}
}
}
}
break;
default:
processedNode = false;
break;
}
}
}
if (!processedNode)
{
for (var i = 0; i < tNode.ChildNodeCount; i++)
{
var chld = tNode.GetChildNode(i);
if (chld != null)
{
var subReceipt = GetAppleReceiptFromNode(chld, receipt);
if (subReceipt.PurchaseReceipts != null)
{
foreach (var sr in subReceipt.PurchaseReceipts)
{
if (receipt.PurchaseReceipts.All(purchaseReceipt =>
purchaseReceipt.ProductId != sr.ProductId))
{
receipt.PurchaseReceipts.Add(sr);
}
}
}
}
}
}
return(receipt);
}
private AppleInAppPurchaseReceipt ParseInAppReceipt(Asn1Node inApp)
{
var result = new AppleInAppPurchaseReceipt();
for (int t = 0; t < inApp.ChildNodeCount; t++)
{
var node = inApp.GetChildNode(t);
if (node.ChildNodeCount == 3)
{
var type = Asn1Util.BytesToLong(node.GetChildNode(0).Data);
var value = node.GetChildNode(2);
switch (type)
{
case 1701:
result.quantity = (int)Asn1Util.BytesToLong(value.GetChildNode(0).Data);
break;
case 1702:
result.productID = Encoding.UTF8.GetString(value.GetChildNode(0).Data);
break;
case 1703:
result.transactionID = Encoding.UTF8.GetString(value.GetChildNode(0).Data);
break;
case 1705:
result.originalTransactionIdentifier = Encoding.UTF8.GetString(value.GetChildNode(0).Data);
break;
case 1704:
result.purchaseDate = TryParseDateTimeNode(value);
break;
case 1706:
result.originalPurchaseDate = TryParseDateTimeNode(value);
break;
case 1708:
result.subscriptionExpirationDate = TryParseDateTimeNode(value);
break;
case 1712:
result.cancellationDate = TryParseDateTimeNode(value);
break;
case 1707:
// looks like possibly a type?
result.productType = (int)Asn1Util.BytesToLong(value.GetChildNode(0).Data);
break;
case 1713:
// looks like possibly is_trial?
result.isFreeTrial = (int)Asn1Util.BytesToLong(value.GetChildNode(0).Data);
break;
case 1719:
result.isIntroductoryPricePeriod = (int)Asn1Util.BytesToLong(value.GetChildNode(0).Data);
break;
default:
break;
}
}
}
return(result);
}
private void parseNodeRecursive(Asn1Node tNode)
{
bool processed_node = false;
if ((tNode.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.SEQUENCE && tNode.ChildNodeCount == 3)
{
Asn1Node node1 = tNode.GetChildNode(0);
Asn1Node node2 = tNode.GetChildNode(1);
Asn1Node node3 = tNode.GetChildNode(2);
if ((node1.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.INTEGER && (node2.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.INTEGER &&
(node3.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.OCTET_STRING)
{
processed_node = true;
int type = (int)Asn1Util.BytesToLong(node1.Data);
switch (type)
{
case AppReceiptASN1TypeBundleIdentifier:
BundleIdentifier = getStringFromSubNode(node3);
break;
case AppReceiptASN1TypeAppVersion:
AppVersion = getStringFromSubNode(node3);
break;
case AppReceiptASN1TypeOpaqueValue:
break;
case AppReceiptASN1TypeHash:
break;
case AppReceiptASN1TypeOriginalAppVersion:
OriginalAppVersion = getStringFromSubNode(node3);
break;
case AppReceiptASN1TypeReceiptExpirationDate:
break;
case AppReceiptASN1TypeReceiptCreationDate:
ReceiptCreationDate = getDateTimeFromSubNode(node3);
break;
case AppReceiptASN1TypeInAppPurchaseReceipt:
{
if (node3.ChildNodeCount > 0)
{
Asn1Node node31 = node3.GetChildNode(0);
if ((node31.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.SET && node31.ChildNodeCount > 0)
{
AppleInAppPurchaseReceipt receipt = new AppleInAppPurchaseReceipt();
for (int i = 0; i < node31.ChildNodeCount; i++)
{
Asn1Node node311 = node31.GetChildNode(i);
if ((node311.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.SEQUENCE && node311.ChildNodeCount == 3)
{
Asn1Node node3111 = node311.GetChildNode(0);
Asn1Node node3112 = node311.GetChildNode(1);
Asn1Node node3113 = node311.GetChildNode(2);
if ((node3111.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.INTEGER && (node3112.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.INTEGER &&
(node3113.Tag & Asn1Tag.TAG_MASK) == Asn1Tag.OCTET_STRING)
{
int type1 = (int)Asn1Util.BytesToLong(node3111.Data);
switch (type1)
{
case AppReceiptASN1TypeQuantity:
receipt.Quantity = getIntegerFromSubNode(node3113);
break;
case AppReceiptASN1TypeProductIdentifier:
receipt.ProductIdentifier = getStringFromSubNode(node3113);
break;
case AppReceiptASN1TypeTransactionIdentifier:
receipt.TransactionIdentifier = getStringFromSubNode(node3113);
break;
case AppReceiptASN1TypePurchaseDate:
receipt.PurchaseDate = getDateTimeFromSubNode(node3113);
break;
case AppReceiptASN1TypeOriginalTransactionIdentifier:
receipt.OriginalTransactionIdentifier = getStringFromSubNode(node3113);
break;
case AppReceiptASN1TypeOriginalPurchaseDate:
receipt.OriginalPurchaseDate = getDateTimeFromSubNode(node3113);
break;
case AppReceiptASN1TypeSubscriptionExpirationDate:
receipt.SubscriptionExpirationDate = getDateTimeFromSubNode(node3113);
break;
case AppReceiptASN1TypeWebOrderLineItemID:
receipt.WebOrderLineItemID = getIntegerFromSubNode(node3113);
break;
case AppReceiptASN1TypeCancellationDate:
receipt.CancellationDate = getDateTimeFromSubNode(node3113);
break;
}
}
}
}
if (!string.IsNullOrEmpty(receipt.ProductIdentifier))
{
PurchaseReceipts.Add(receipt.ProductIdentifier, receipt);
}
}
}
}
break;
default:
processed_node = false;
break;
}
}
}
if (!processed_node)
{
for (int i = 0; i < tNode.ChildNodeCount; i++)
{
Asn1Node chld = tNode.GetChildNode(i);
if (chld != null)
{
parseNodeRecursive(chld);
}
}
}
}
public DistinguishedName(Asn1Node n)
{
/* Name:
* SET
* SEQ (attr)
* Object Identifier
* Printable String || UTF8String
*/
if (n.MaskedTag == Asn1Tag.SEQUENCE)
{
for (int i = 0; i < n.ChildNodeCount; i++)
{
Asn1Node tt = n.GetChildNode(i);
if (tt.MaskedTag != Asn1Tag.SET || tt.ChildNodeCount != 1)
{
throw new InvalidX509Data();
}
tt = tt.GetChildNode(0);
if (tt.MaskedTag != Asn1Tag.SEQUENCE || tt.ChildNodeCount != 2)
{
throw new InvalidX509Data();
}
Asn1Node oi = tt.GetChildNode(0);
Asn1Node txt = tt.GetChildNode(1);
if (oi.MaskedTag != Asn1Tag.OBJECT_IDENTIFIER ||
!(
(txt.MaskedTag == Asn1Tag.PRINTABLE_STRING) ||
(txt.MaskedTag == Asn1Tag.UTF8_STRING) ||
(txt.MaskedTag == Asn1Tag.IA5_STRING)))
{
throw new InvalidX509Data();
}
var xoid = new LipingShare.LCLib.Asn1Processor.Oid();
string oiName = xoid.Decode(oi.Data);
var enc = new System.Text.UTF8Encoding();
switch (oiName)
{
case "2.5.4.6": // countryName
Country = enc.GetString(txt.Data);
break;
case "2.5.4.10": // organizationName
Organization = enc.GetString(txt.Data);
break;
case "2.5.4.11": // organizationalUnit
OrganizationalUnit = enc.GetString(txt.Data);
break;
case "2.5.4.3": // commonName
CommonName = enc.GetString(txt.Data);
break;
case "2.5.4.5": // serial number
SerialNumber = Asn1Util.ToHexString(txt.Data);
break;
case "2.5.4.46": // dnq
Dnq = enc.GetString(txt.Data);
break;
case "2.5.4.8": // state
State = enc.GetString(txt.Data);
break;
}
}
}
}
