public async Task <IActionResult> Edit(int id, [Bind("id,longUrl,key")] ShortUrl shortUrl)
{
if (!loggedIn())
{
return(View("Login"));
}
if (id != shortUrl.id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(shortUrl);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!ShortUrlExists(shortUrl.id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(shortUrl));
}
public async Task <ActionResult <string> > SaveUrl([FromBody] string longUrl)
{
var urlObj = new Url();
urlObj.LongUrl = longUrl;
urlObj.ShortKey = GenerateShortKey(6);// Max 6
urlObj.CreateDate = DateTime.Now;
_context.Urls.Add(urlObj);
await _context.SaveChangesAsync();
return(urlObj.ShortKey);
}
public async Task <IActionResult> Submit(string longUrl)
{
string newUrl = tidyUrl(longUrl);
if (!validateUrlInput(newUrl))
{
ViewData["ErrorText"] = "Invalid url " + newUrl;
return(View("UrlError"));
}
//get existing or create
ShortUrl urlReturn = await _context.ShortUrl
.FirstOrDefaultAsync(m => m.longUrl == newUrl);
if (urlReturn == null)
{
urlReturn = new ShortUrl(newUrl);
while (!keyUnique(urlReturn.key))
{
urlReturn = new ShortUrl(newUrl);
}
if (ModelState.IsValid)
{
_context.Add(urlReturn);
await _context.SaveChangesAsync();
}
else
{
ViewData["ErrorText"] = "Fatal Error";
return(View("UrlError"));
}
}
ViewData["UrlReturn"] = String.Format("{0}://{1}{2}", Request.Scheme, Request.Host, Request.PathBase) + "/" + urlReturn.key;
return(View());
}
public async Task <IActionResult> Create([Bind("Id,LongUrl,ShortUrl,CreationDate,Counter")] Url url)
{
if (ModelState.IsValid)
{
var d = from _ in _context.Url where _.LongUrl == url.LongUrl select _;
if (await d.AnyAsync())
{
return(View("Success", await d.FirstOrDefaultAsync()));
}
var hash = ShortUrl.Models.Logic.Hash.Hasher.GetShortHash(url.LongUrl);
url.ShortUrl = hash;
url.Counter = 0;
_context.Add(url);
await _context.SaveChangesAsync();
//return RedirectToAction(nameof(Index));
return(View("Success", url));
}
return(View(url));
}