public static async Task <StringBuilder> PostWebPage(string Url, Dictionary <string, string> postData,
string RefererUrl, CookieCollection cookieCollection, Action <string> userNotify = null)
{
StringBuilder BodyString = new StringBuilder();
bool urlCorrect = Uri.TryCreate(Url, UriKind.Absolute, out Uri URI) &&
(URI.Scheme == Uri.UriSchemeHttp || URI.Scheme == Uri.UriSchemeHttps);
if (!urlCorrect)
{
Debug.Write("GetWeb." + System.Reflection.MethodBase.GetCurrentMethod().Name + " => URL not correct");
return(BodyString);
}
var BaseURI = new Uri(URI.GetLeftPart(UriPartial.Authority));
var PathURI = new Uri(URI.PathAndQuery);
using (var handler = new HttpClientHandler())
{
if (cookieCollection != null)
{
var cookies = new CookieContainer();
cookies.Add(cookieCollection);
handler.UseCookies = true;
handler.CookieContainer = cookies;
}
else
{
handler.UseCookies = false;
}
using (HttpClient client = new HttpClient(handler)
{
Timeout = TimeSpan.FromSeconds(6)
})
{
try
{
client.BaseAddress = BaseURI;
client.DefaultRequestHeaders.Add("X-Requested-With", "XMLHttpRequest");
var keyValues = new List <KeyValuePair <string, string> >();
foreach (var item in postData)
{
keyValues.Add(new KeyValuePair <string, string>(item.Key, item.Value));
}
var inputContent = new FormUrlEncodedContent(postData);
using (HttpResponseMessage response = await client.PostAsync(PathURI, inputContent).ConfigureAwait(false))
{
if (!response.IsSuccessStatusCode)
{
Debug.Write("GetAdvertListAsync(AdvertSearch searchParams) => !response.IsSuccessStatusCode");
userNotify?.Invoke("Niepoprawna odpowiedź z serwera");
return(BodyString);
}
using (HttpContent content = response.Content)
{
var byteArray = await content.ReadAsStringAsync();
BodyString.Append(byteArray);
}
}
}
catch (System.Threading.Tasks.TaskCanceledException)
{
Debug.Write("PostWebPage => System.Threading.Tasks.TaskCanceledException");
userNotify?.Invoke("Błąd połączenia. Przekroczono limit połączenia");
return(BodyString);
}
catch (Exception e)
{
Debug.Write("PostWebPage => " + e.Message);
userNotify?.Invoke("Błąd połączenia z serwerem.");
return(BodyString);
}
}
return(BodyString);
}
}
