private string GenerateSignature(JSSDKViewModel model)
{
return SHA1_Hash(string.Format("jsapi_ticket={0}&noncestr={1}×tamp={2}&url={3}", model.JsApiTicket, model.NouceString, model.Timestamp, model.Url));
}
private async Task<JSSDKViewModel> ConstructJSSDKViewModel()
{
var jsSDKViewModel = new JSSDKViewModel
{
NouceString = "alibaba",
Timestamp = 1464483842,//DateTime.Now.ToFileTime(),
Url = string.Format("{0}://{1}{2}{3}", Request.Scheme, Request.Host.Value, Request.Path.Value, Request.QueryString.Value)
};
if (HttpRuntime.Cache.Get("JsApiTicket") == null)
{
using (var handler = new HttpClientHandler())
{
handler.ClientCertificateOptions = ClientCertificateOption.Automatic;
using (var client = new HttpClient(handler))
{
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
HttpResponseMessage response = await client.GetAsync(TokenUrl);
if (response.IsSuccessStatusCode)
{
TokenUrlResponse token = await response.Content.ReadAsAsync<TokenUrlResponse>();
response = await client.GetAsync(string.Format(TicketUrl, token.access_token));
TicketUrlResponse ticket = await response.Content.ReadAsAsync<TicketUrlResponse>();
if (ticket.ticket == null) ticket.ticket = "sM4AOVdWfPE4DxkXGEs8VMCPGGVi4C3VM0P37wVUCFvkVAy_90u5h9nbSlYy3-Sl-HhTdfl2fzFy1AOcHKP7qg";
HttpRuntime.Cache.Insert("JsApiTicket", ticket.ticket, null, DateTime.Now.AddSeconds(7000), Cache.NoSlidingExpiration, CacheItemPriority.High, null);
}
}
}
}
jsSDKViewModel.JsApiTicket = HttpRuntime.Cache.Get("JsApiTicket") as string;
jsSDKViewModel.Signature = GenerateSignature(jsSDKViewModel);
jsSDKViewModel.JumpUrl = JumpUrl;
return jsSDKViewModel;
}