internal static async Task <HttpRequestResult <TSchema> > ExecuteGetAsync <TSchema>(IParser <TSchema> parser, Uri uri, IDictionary <string, string> headers = null) where TSchema : SchemaBase
{
var settings = new HttpRequestSettings()
{
RequestedUri = uri
};
if (headers != null && headers.Count > 0)
{
foreach (var item in headers)
{
settings.Headers[item.Key] = item.Value;
}
}
HttpRequestResult httpResult = await DownloadAsync(settings);
HttpRequestResult <TSchema> result;
result = new HttpRequestResult <TSchema>(httpResult);
if (httpResult.Success)
{
var items = await parser.ParseAsync(httpResult.Result);
if (items == null)
{
items = new TSchema[0];
}
result.Items = items;
}
return(result);
}
internal static async Task <HttpRequestResult> DownloadAsync(HttpRequestSettings settings)
{
var result = new HttpRequestResult();
HttpResponseMessage response = await GetResponseMessage(settings);
result.StatusCode = response.StatusCode;
FixInvalidCharset(response);
var content = await response.Content.ReadAsStringAsync();
result.Result = content;
return(result);
}
private static async Task <HttpResponseMessage> GetResponseMessage(HttpRequestSettings settings)
{
var filter = new HttpBaseProtocolFilter();
filter.CacheControl.ReadBehavior = HttpCacheReadBehavior.MostRecent;
var httpClient = new HttpClient(filter);
AddRequestHeaders(httpClient, settings);
HttpResponseMessage response = await httpClient.GetAsync(settings.RequestedUri);
return(response);
}
private static void AddRequestHeaders(HttpClient httpClient, HttpRequestSettings settings)
{
if (!string.IsNullOrEmpty(settings.UserAgent))
{
httpClient.DefaultRequestHeaders.UserAgent.ParseAdd(settings.UserAgent);
}
if (settings.Headers != null)
{
foreach (var customHeaderName in settings.Headers.AllKeys)
{
if (!String.IsNullOrEmpty(settings.Headers[customHeaderName]))
{
httpClient.DefaultRequestHeaders.Add(customHeaderName, settings.Headers[customHeaderName]);
}
}
}
}
internal static async Task <HttpRequestResult> DownloadAsync(HttpRequestSettings settings)
{
var result = new HttpRequestResult();
var filter = new HttpBaseProtocolFilter();
filter.CacheControl.ReadBehavior = HttpCacheReadBehavior.MostRecent;
var httpClient = new HttpClient(filter);
AddRequestHeaders(httpClient, settings);
HttpResponseMessage response = await httpClient.GetAsync(settings.RequestedUri);
result.StatusCode = response.StatusCode;
FixInvalidCharset(response);
result.Result = await response.Content.ReadAsStringAsync();
return(result);
}
internal static async Task<HttpRequestResult> DownloadAsync(HttpRequestSettings settings)
{
var result = new HttpRequestResult();
var filter = new HttpBaseProtocolFilter();
filter.CacheControl.ReadBehavior = HttpCacheReadBehavior.MostRecent;
var httpClient = new HttpClient(filter);
if (!string.IsNullOrEmpty(settings.UserAgent))
{
httpClient.DefaultRequestHeaders.UserAgent.ParseAdd(settings.UserAgent);
}
HttpResponseMessage response = await httpClient.GetAsync(settings.RequestedUri);
result.StatusCode = response.StatusCode;
FixInvalidCharset(response);
result.Result = await response.Content.ReadAsStringAsync();
return result;
}
private static void AddRequestHeaders(HttpClient httpClient, HttpRequestSettings settings)
{
if (!string.IsNullOrEmpty(settings.UserAgent))
{
httpClient.DefaultRequestHeaders.UserAgent.ParseAdd(settings.UserAgent);
}
if (settings.Headers != null)
{
foreach (var customHeaderName in settings.Headers.AllKeys)
{
if (!String.IsNullOrEmpty(settings.Headers[customHeaderName]))
{
if (customHeaderName.ToLower() == "user-agent")
{
settings.Headers[customHeaderName] += $" {GetWASSufix()}";
}
httpClient.DefaultRequestHeaders[customHeaderName] = settings.Headers[customHeaderName];
}
}
}
}
private static async Task <HttpResponseMessage> GetResponseMessage(HttpRequestSettings settings)
{
#if UWP
var filter = new HttpBaseProtocolFilter();
filter.CacheControl.ReadBehavior = HttpCacheReadBehavior.MostRecent;
var httpClient = new HttpClient(filter);
#else
HttpClientHandler handler = new HttpClientHandler()
{
AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate
};
//Response.Cache.SetCacheability(HttpCacheability.NoCache);
var httpClient = new HttpClient(handler);
httpClient.DefaultRequestHeaders.CacheControl = new CacheControlHeaderValue()
{
NoCache = true
};
#endif
AddRequestHeaders(httpClient, settings);
HttpResponseMessage response = await httpClient.GetAsync(settings.RequestedUri);
return(response);
}
