public ActionResult Launch(int contentItemToolId, int courseId)
{
var contentItemTool = ConsumerContext.ContentItemTools.Find(contentItemToolId);
if (contentItemTool == null)
{
return(RedirectToAction("BadRequest", "Error", new { error = "Invalid content tool id" }));
}
var course = ConsumerContext.Courses.Find(courseId);
if (course == null)
{
return(RedirectToAction("BadRequest", "Error", new { error = "Invalid course id" }));
}
var user = UserManager.FindById(User.Identity.GetUserId());
var returnUrl = UrlHelper.GenerateUrl("Default", "PlaceContentItem", "ContentItemTool", null, RouteTable.Routes,
Request.RequestContext, true);
Uri returnUri;
if (Uri.TryCreate(Request.Url, returnUrl, out returnUri))
{
returnUrl = returnUri.AbsoluteUri;
}
return(View(LtiUtility.CreateContentItemSelectionRequestViewModel(Request, contentItemTool, course, user, returnUrl)));
}
/// <summary>
/// Form a basic LTI launch request for the browser to POST.
/// </summary>
/// <param name="id">The assignment ID to launch.</param>
/// <returns>A form post for the browser to execute.</returns>
public ActionResult LtiLaunch(int id = 0)
{
var assignment = ConsumerContext.Assignments.Find(id);
var user = UserManager.FindById(User.Identity.GetUserId());
return(View(LtiUtility.CreateBasicLaunchRequestViewModel(Request, assignment, user)));
}
public ToolConsumerProfileController()
{
OnGetToolConsumerProfile = context =>
{
// I use AssemblyInfo to store product and vendor values that may be used
// in multiple places in this sample
var guid = LtiUtility.GetProduct();
var code = guid; // Product and ProductFamily are the same in this sample
var vendorName = LtiUtility.GetCompany();
var productName = LtiUtility.GetTitle();
var productVersion = LtiUtility.GetVersion();
// Build a minimal ToolConsumerProfile for LTI 1.2
var profile = new ToolConsumerProfile
{
CapabilityOffered = new[] { LtiConstants.BasicLaunchLtiMessageType },
Guid = guid,
LtiVersion = context.LtiVersion,
ProductInstance = new ProductInstance
{
Guid = guid,
ProductInfo = new ProductInfo
{
ProductFamily = new ProductFamily
{
Code = code,
Vendor = new Vendor
{
Code = code,
Timestamp = DateTime.UtcNow,
VendorName = new VendorName(vendorName)
}
},
ProductName = new ProductName(productName),
ProductVersion = productVersion
}
}
};
// Add Outcomes Management
var outcomesUrl = UrlHelper.GenerateUrl("DefaultApi", null, "Outcomes",
new RouteValueDictionary {
{ "httproute", string.Empty }
}, RouteTable.Routes,
HttpContext.Current.Request.RequestContext, false);
Uri serviceUri;
profile.ServiceOffered = new[]
{
new RestService
{
Action = new[] { "POST" },
EndPoint = Uri.TryCreate(Request.RequestUri, outcomesUrl, out serviceUri) ? serviceUri : null,
Format = new[] { LtiConstants.OutcomeMediaType }
}
};
context.ToolConsumerProfile = profile;
return(Task.FromResult <object>(null));
};
}
