private async Task <BookDownloadLinkModel> GetDownloadLink(string url)
{
HttpResponseMessage response;
try
{
response = await _webClient.DoHeadAsync(url);
}
catch (Exception)
{
return(null);
}
if (response == null || response.Content.Headers.ContentType == null)
{
return(null);
}
var contentType = response.Content.Headers.ContentType.MediaType;
if (contentType.Contains("application/epub"))
{
var type = contentType.EndsWith("zip") ? "application/epub+zip" : "application/epub";
return(new BookDownloadLinkModel
{
Type = type,
Url = url
});
}
if (contentType.Contains("application/fb2"))
{
var type = contentType.EndsWith("zip") ? "application/fb2+zip" : "application/fb2";
return(new BookDownloadLinkModel
{
Type = type,
Url = url
});
}
if (contentType.Contains("application/html"))
{
var type = contentType.EndsWith("zip") ? "application/html+zip" : "application/html";
return(new BookDownloadLinkModel
{
Type = type,
Url = url
});
}
if (contentType.Contains("application/txt"))
{
var type = contentType.EndsWith("zip") ? "application/txt+zip" : "application/txt";
return(new BookDownloadLinkModel
{
Type = type,
Url = url
});
}
if (contentType.Contains("application/zip"))
{
return(new BookDownloadLinkModel
{
Type = "application/fb2+zip",
Url = url
});
}
return(null);
}