static Task HandleRedirect(HttpContext context)
{
var db = context.RequestServices.GetService <ILiteDatabase>();
var collection = db.GetCollection <ShortLink>();
var path = context.Request.Path.ToUriComponent().Trim('/');
var id = ShortLink.GetId(path);
var entry = collection.Find(p => p.Id == id).FirstOrDefault();
if (entry != null)
{
context.Response.Redirect(entry.Url);
}
else
{
context.Response.Redirect("/");
}
return(Task.CompletedTask);
}
// Endpoint Methods
static Task HandleShortenUrl(HttpContext context)
{
// Perform basic form validation
if (!context.Request.HasFormContentType || !context.Request.Form.ContainsKey("url"))
{
context.Response.StatusCode = StatusCodes.Status400BadRequest;
return(context.Response.WriteAsync("Cannot process request"));
}
context.Request.Form.TryGetValue("url", out var formData);
var requestedUrl = formData.ToString();
// Test our URL
if (!Uri.TryCreate(requestedUrl, UriKind.Absolute, out Uri result))
{
context.Response.StatusCode = StatusCodes.Status400BadRequest;
return(context.Response.WriteAsync("Could not understand URL."));
}
var url = result.ToString();
// Ask for LiteDB and persist a short link
var liteDB = context.RequestServices.GetService <ILiteDatabase>();
var links = liteDB.GetCollection <ShortLink>(BsonAutoId.Int32);
// Temporary short link
var entry = new ShortLink
{
Url = url
};
// Insert our short-link
links.Insert(entry);
//var urlChunk = entry.GetUrlChunk();
//var responseUri = $"{context.Request.Scheme}://{context.Request.Host}/{urlChunk}";
//return context.Response.WriteAsync(responseUri);
var urlChunk = entry.GetUrlChunk();
var responseUri = $"{context.Request.Scheme}://{context.Request.Host}/{urlChunk}";
context.Response.Redirect($"/#{responseUri}");
return(Task.CompletedTask);
//// Perform basic form validation
//if (!context.Request.HasFormContentType || !context.Request.Form.ContainsKey("url"))
//{
// context.Response.StatusCode = StatusCodes.Status400BadRequest;
// return context.Response.WriteAsync("Cannot process request");
//}
//context.Request.Form.TryGetValue("url", out var formData);
//var requestedUrl = formData.ToString();
//// Test our URL
//if (!Uri.TryCreate(requestedUrl, UriKind.Absolute, out Uri result))
//{
// context.Response.StatusCode = StatusCodes.Status400BadRequest;
// return context.Response.WriteAsync("Could not understand URL.");
//}
//var url = result.ToString();
//// Temporary short link
//var entry = new ShortLink
//{
// Id = 123_456_789,
// Url = url
//};
//var urlChunk = entry.GetUrlChunk();
//var responseUri = $"{context.Request.Scheme}://{context.Request.Host}/{urlChunk}";
//return context.Response.WriteAsync(responseUri);
}
