private void referenceElementsTimer_Tick(object sender, EventArgs e)
{
switch (referencesSteps)
{
case 0:
TreeViewItem element = findItem(presentation.SecuredSoapItem, actElementToReference.Name);
element.BringIntoView();
actElementToReferenceTVI = element;
if (!soap.GetXPathTransForm())
{
actElementToReference = elementsToSign[referencesCounter];
presentation.AddTextToInformationBox("Check if the " + actElementToReference.Name + "-Element has an ID");
string id = checkForID(element);
if (id != null)
{
presentation.AddTextToInformationBox("The Element already has an ID: " + id);
animateElement(actElementToReference.Name);
referencesSteps = 2;
}
else
{
presentation.AddTextToInformationBox("The Element has no ID");
referencesSteps = 1;
}
}
else
{
presentation.AddTextToInformationBox("The " + actElementToReference.Name + " Element is referenced by a xPath transform");
referencesSteps = 3;
}
break;
case 1:
//Generate ID for Act Element
presentation.AddTextToInformationBox("Create Id for the Element");
TreeViewItem element1 = findItem(presentation.SecuredSoapItem, actElementToReference.Name);
createAttributeForElement(actElementToReference.Name, "Id", soap.GetIdToElement(actElementToReference.Name));
referencesSteps = 2;
break;
case 2:
presentation.AddTextToInformationBox("Create Reference Element for " + actElementToReference.Name + " Element");
actReferenceElementTVI = addChildElement("ds:SignedInfo", soap.SecuredSoap.GetElementsByTagName("ds:Reference")[referencesCounter], false);
actReferenceElement = (XmlElement)soap.SecuredSoap.GetElementsByTagName("ds:Reference")[referencesCounter];
referencesSteps = 5;
break;
case 3:
//XPAth Reference Element
presentation.AddTextToInformationBox("Create Reference Element for " + actElementToReference.Name + " Element");
actReferenceElementTVI = addChildElement("ds:SignedInfo", soap.SecuredSoap.GetElementsByTagName("ds:Reference")[referencesCounter], false);
actReferenceElement = (XmlElement)soap.SecuredSoap.GetElementsByTagName("ds:Reference")[referencesCounter];
referencesSteps = 4;
break;
case 4:
presentation.AddTextToInformationBox("The Reference Element needs no URI cause of the XPath Transform");
referencesSteps = 5;
break;
case 5:
presentation.AddTextToInformationBox("Create a Transforms Element");
useactSigItem = true;
actTransformsElementTVI = addChildElement("ds:Reference", soap.SecuredSoap.GetElementsByTagName("ds:Transforms")[referencesCounter], false);
referencesSteps = 6;
break;
case 6:
transformsCounter = actReferenceElement.FirstChild.ChildNodes.Count;
actTransformsElementTVI.BringIntoView();
referencesSteps = 7;
TransformsTimer.Start();
actTimer = TransformsTimer;
referenceElementsTimer.Stop();
break;
case 7:
presentation.AddTextToInformationBox("Create the DigestMethod-Element");
addChildElement("ds:Reference", soap.SecuredSoap.GetElementsByTagName("ds:DigestMethod")[referencesCounter], false);
referencesSteps = 8;
break;
case 8:
presentation.AddTextToInformationBox("Calculate the DigestValue for the Referenced Element");
referencesSteps = 9;
break;
case 9:
presentation.AddTextToInformationBox("Find the referenced element");
referencesSteps = 10;
break;
case 10:
if (soap.GetXPathTransForm())
{
presentation.AddTextToInformationBox("URI is empty, so the complete document is referenced");
TreeViewItem temp = (TreeViewItem)presentation.treeView.Items[0];
temp.BringIntoView();
animateElement(temp);
referencesSteps = 11;
}
else
{
presentation.AddTextToInformationBox("The referenced element is: " + actElementToReference.Name);
actElementToReferenceTVI.BringIntoView();
animateElement(actElementToReferenceTVI);
referencesSteps = 13;
}
break;
case 11:
presentation.AddTextToInformationBox("Do the XPath Transform on the referenced element");
xPathSteps = xPath.Split(new char[] { '/' });
xPathArrayCounter = 1;
referencesSteps = 12;
break;
case 12:
if (xPathArrayCounter <= xPathSteps.Length - 1)
{
presentation.AddTextToInformationBox("Actual element: " + xPathSteps[xPathArrayCounter]);
animateItemInclChilds(xPathSteps[xPathArrayCounter]);
xPathArrayCounter++;
}
else
{
referencesSteps = 13;
}
break;
case 13:
presentation.AddTextToInformationBox("Canonicalize the actual Element");
referencesSteps = 14;
break;
case 14:
presentation.AddTextToInformationBox("The canonicalized element is:");
rootItem = (TreeViewItem)presentation.treeView.Items[0];
TreeViewItem canon = new TreeViewItem();
StreamReader sreader = new StreamReader(soap.CanonicalizeNodeWithExcC14n(actElementToReference));
string canonString = sreader.ReadToEnd();
XmlDocument doc = new XmlDocument();
XmlElement elem = doc.CreateElement("temp");
elem.InnerXml = canonString;
TextBlock tb = new TextBlock();
tb.FontSize = 14;
tb.Text = "Canonicalized Element";
XmlNode node = (XmlNode)elem.ChildNodes[0];
presentation.CopyXmlToTreeView(node, canon);
presentation.treeView.Items.Clear();
canon.IsExpanded = true;
presentation.treeView.Items.Add(canon);
referencesSteps = 15;
break;
case 15:
referencesSteps = 16;
break;
case 16:
presentation.AddTextToInformationBox("Calculate SHA-1 Hash of this Element:");
referencesSteps = 17;
break;
case 17:
XmlNode digest = soap.SecuredSoap.GetElementsByTagName("ds:DigestValue")[referencesCounter];
presentation.AddTextToInformationBox("SHA-1 Value:" + digest.InnerText);
referencesSteps = 18;
break;
case 18:
presentation.treeView.Items.Clear();
presentation.treeView.Items.Add(rootItem);
presentation.AddTextToInformationBox("Create Digest Value Element");
actDigestValue = addChildElement(actReferenceElementTVI, soap.SecuredSoap.GetElementsByTagName("ds:DigestValue")[referencesCounter], false);
referencesSteps = 19;
break;
case 19:
presentation.AddTextToInformationBox("Add Digest Value to Digest Value Element");
createValue(actDigestValue, soap.SecuredSoap.GetElementsByTagName("ds:DigestValue")[referencesCounter].InnerText);
referencesSteps = 20;
break;
case 20:
referencesSteps = 0;
referencesCounter++;
referenceElementsTimer.Stop();
referencesTimer.Start();
actTimer = referencesTimer;
break;
}
}