protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
//Retrieve the content
string signResponse = Request.Form.Get("SignResponse");
//Retrieve the session
DsspSession session = (DsspSession)Session["dsspSession"];
// verify whether DsspSession is serializable
BinaryFormatter binaryFormatter = new BinaryFormatter();
MemoryStream memoryStream = new MemoryStream();
binaryFormatter.Serialize(memoryStream, session);
memoryStream.Seek(0, SeekOrigin.Begin);
session = (DsspSession)binaryFormatter.Deserialize(memoryStream);
Document signedDocument;
try
{
//Check if the content is valid, this isn't required but strongly advised.
NameIdentifierType newSigner = session.ValidateSignResponse(signResponse);
//Remove the DSS-P Session from the HTTP Session
Session.Remove("dsspSession");
//download the signed document
signedDocument = dsspClient.DownloadDocument(session);
//You should save the signed document about here...
Session["signedDocument"] = signedDocument;
//For demo purposes, lets validate the signature. This is purely optional
SecurityInfo securityInfo = dsspClient.Verify(signedDocument);
//Display some interesting info about the signed document
this.msg.Text = "signed document with timestamp valid until " + securityInfo.TimeStampValidity;
foreach (SignatureInfo signature in securityInfo.Signatures)
{
if (signature.SignerSubject == newSigner.Value)
{
this.signatures.Items.Add("New: Signed by " + signature.Signer.Subject + " on " + signature.SigningTime);
}
else
{
this.signatures.Items.Add("Signed by " + signature.Signer.Subject + " on " + signature.SigningTime);
}
}
this.view.Enabled = true;
}
catch (AuthorizationError error)
{
//Failed, lets display the error
this.msg.Text = "authorization error: " + error.AttemptedSigner.Value;
this.view.Enabled = false;
return;
}
catch (RequestError error)
{
//Failed, lets display the error
this.msg.Text = "signing error: " + error.Message;
this.view.Enabled = false;
return;
}
}
}
public async Task <HttpResponseMessage> Post(string id, [FromBody] FormDataCollection formData)
{
NameIdentifierType newSigner = null;
try
{
foreach (KeyValuePair <String, String> formField in formData)
{
if (formField.Key == "SignResponse")
{
try
{
//check if the sign response is correct, keep the signer
newSigner = sessions[id].ValidateSignResponse(formField.Value);
docs[id].Alert = new Alert()
{
Message = "New signature by " + newSigner.Value, Type = "success"
};
//get the session and remove it from the store
DsspSession session = sessions.Remove(id);
//Download the signed document.
Document doc = await dsspClient.DownloadDocumentAsync(session);
docs[id].Content = doc.Content;
//You should save the signed document about here...
//For demo purposes, lets validate the signature. This is purely optional
SecurityInfo securityInfo = await dsspClient.VerifyAsync(doc);
//Keep some interesting info about the signed document
docs[id].TimeStampValidity = securityInfo.TimeStampValidity;
docs[id].Signatures = new List <SignInfo>();
foreach (SignatureInfo info in securityInfo.Signatures)
{
SignInfo i = new SignInfo();
i.Signer = info.SignerSubject;
i.SignedOn = info.SigningTime;
i.Location = info.SignatureProductionPlace;
i.Role = info.SignerRole;
docs[id].Signatures.Add(i);
}
}
catch (AuthorizationError ae)
{
newSigner = ae.AttemptedSigner;
docs[id].Alert = new Alert()
{
Message = "Failed signature attempt by " + ae.AttemptedSigner.Value, Type = "warning"
};
sessions.Remove(id); //we can remove now, it is no longer valid
}
}
}
if (newSigner == null)
{
docs[id].Alert = new Alert()
{
Message = "No new signature found", Type = "danger"
};
}
}
catch (Exception e)
{
docs[id].Alert = new Alert()
{
Message = "Internal error: " + e.Message, Type = "danger"
};
}
//Redirecting back to the main site (via HTML to make sure "Get" is used instead of POST)
return(RedirectBack());
}
protected void Page_Load(object sender, EventArgs e)
{
Document document = new Document();
document.MimeType = "application/pdf";
document.Content = File.OpenRead(Path.Combine(HostingEnvironment.ApplicationPhysicalPath, @"App_Data\dssp-specs.pdf"));
DsspClient dsspClient = new DsspClient("https://www.e-contract.be/dss-ws/dss");
dsspClient.ApplicationName = Settings.Default.AppName;
dsspClient.ApplicationPassword = Settings.Default.AppPwd;
DsspSession dsspSession = dsspClient.UploadDocument(document);
Session["dsspSession"] = dsspSession;
VisibleSignatureProperties visibleSignature = null;
if ((String)Session["Visible"] == "Photo")
{
visibleSignature = new ImageVisibleSignature()
{
Page = (int)Session["Page"],
X = (int)Session["X"],
Y = (int)Session["Y"]
};
}
else if ((String)Session["Visible"] == "Photo and Signer Info")
{
visibleSignature = new ImageVisibleSignature()
{
Page = (int)Session["Page"],
X = (int)Session["X"],
Y = (int)Session["Y"],
ValueUri = "urn:be:e-contract:dssp:1.0:vs:si:eid-photo:signer-info",
CustomText = (string)Session["CustomText"]
};
}
// verify whether DsspSession is serializable
BinaryFormatter binaryFormatter = new BinaryFormatter();
MemoryStream memoryStream = new MemoryStream();
binaryFormatter.Serialize(memoryStream, dsspSession);
memoryStream.Seek(0, SeekOrigin.Begin);
dsspSession = (DsspSession)binaryFormatter.Deserialize(memoryStream);
Authorization authorization = new Authorization();
//authorization.AddAuthorizedCardNumber("591591588049");
//authorization.AddAuthorizedSubjectName("SERIALNUMBER=79102520991, GIVENNAME=Frank Henri, SURNAME=Cornelis, CN=Frank Cornelis (Signature), C=BE");
//authorization.AddNonAuthorizedSubjectName("SERIALNUMBER=79102520991, GIVENNAME=Frank Henri, SURNAME=Cornelis, CN=Frank Cornelis (Signature), C=BE");
this.PendingRequest.Value = dsspSession.GeneratePendingRequest(
new Uri(Request.Url, ResolveUrl("~/Signed.aspx")),
Settings.Default.Language,
new SignatureRequestProperties()
{
SignerRole = (string)Session["Role"],
SignatureProductionPlace = (string)Session["Location"],
VisibleSignature = visibleSignature
},
authorization
);
}
