/// <summary>
/// 验证码图片
/// </summary>
/// <param name="context"></param>
public void ProcessRequest(HttpContext context)
{
try
{
context.Response.ClearContent();
context.Response.ContentType = "image/Jpeg";
var vc = new ValCode();
var code = vc.CreateValidateCode(4);
HttpCookie hc = new HttpCookie("validatecode", code);
TimeSpan ts = new TimeSpan(0, 2, 0);//2分钟
hc.Expires = DateTime.Now.Add(ts);
context.Response.Cookies.Set(hc);
var codeImg = vc.CreateValidateGraphic(code);
context.Response.BinaryWrite(codeImg);
}
catch
{
}
}
private async void btn_CloseClick(object sender, RoutedEventArgs e)
{
string ValCode;
string resHtml;
HttpWebRequest request;
List <KeyValuePair <string, string> > nameValueCollection = new List <KeyValuePair <string, string> >();
CookieContainer cookieContainer = new CookieContainer();
string FormData_Name_SupplyNo = "ctl00$contentPlaceHolder$txtSupplyNo";
string FormData_Name_Password = "******";
string FormData_Name_ValCode = "ctl00$contentPlaceHolder$txtValCode";
string Page_Login = "******";
string Page_LoginImg = "https://amis.afa.gov.tw/CreateValidationCodeImage.aspx";
string Page_QueryPrice = "https://amis.afa.gov.tw/coop1/CoopVegSupplierTransInfoQuery.aspx";
string Check_PageIsQueryPrice = "CoopVegSupplierTransInfoQuery";
string Request_UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.125 Safari/537.36";
string Request_Accept = "*/*";
string Request_ContentType = "application/x-www-form-urlencoded";
#region -- 登入帳號Flow --
#region -- 1.Post登入資料組成 --
Page_LoginPost:
#region -- A.導覽登入頁面，並且取得相關Cookie資訊 以及 組成Post資料相關資訊的物件 --
request = (HttpWebRequest)HttpWebRequest.Create(Page_Login);
request.CookieContainer = cookieContainer;
//set the user agent and accept header values, to simulate a real web browser
request.UserAgent = Request_UserAgent;
request.Accept = Request_Accept;
//SET AUTOMATIC DECOMPRESSION
request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
resHtml = Use_WebClient.Get_ResponseHtml(ref request);
nameValueCollection.Clear();
nameValueCollection.AddRange(await Crawler.Todo_AngleSharp.GetHtmlDocument(resHtml, "form input"));
#endregion
#region -- B.取得驗證碼 --
request = (HttpWebRequest)HttpWebRequest.Create(Page_LoginImg);
request.CookieContainer = cookieContainer;
request.UserAgent = Request_UserAgent;
request.Accept = Request_Accept;
request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
var img_byte = Use_WebClient.Get_ResponseImg(ref request);
ValCode = Crawler.Todo_Tesseract3_3.GetImgText(img_byte);
ValCode = (ValCode.Length > 4) ? ValCode.Substring(0, 4) : ValCode;
lbl_Code.Content = ValCode;
using (var ms = new MemoryStream(img_byte))
{
Img_Code.Source = BitmapFrame.Create(ms, BitmapCreateOptions.None, BitmapCacheOption.OnLoad);;
}
#endregion
#region -- C.填寫帳號登入等相關資訊 --
//__ASYNCPOST 以及 ctl00$ScriptManager_Master無法從html得知，所以才用手動寫入的方式填寫
DataCollation.ListItemReplace(ref nameValueCollection, "__ASYNCPOST", "true");
DataCollation.ListItemReplace(ref nameValueCollection, "ctl00$ScriptManager_Master", "ctl00$contentPlaceHolder$UpdatePanel1|ctl00$contentPlaceHolder$btnLogin");
DataCollation.ListItemReplace(ref nameValueCollection, FormData_Name_SupplyNo, txt_SupplyNo.Text);
DataCollation.ListItemReplace(ref nameValueCollection, FormData_Name_Password, pad_Password.Password);
DataCollation.ListItemReplace(ref nameValueCollection, FormData_Name_ValCode, ValCode);
#endregion
#endregion
#region -- 2.登入Post請求發送 --
request = (HttpWebRequest)HttpWebRequest.Create(Page_Login);
request.CookieContainer = cookieContainer;
request.UserAgent = Request_UserAgent;
request.Accept = Request_Accept;
request.Method = "POST";
request.ContentType = Request_ContentType;
request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
string data = string.Join("&", nameValueCollection.Select(x => string.Format("{0}={1}", WebUtility.UrlEncode(x.Key), WebUtility.UrlEncode(x.Value))));
byte[] bytes = Encoding.UTF8.GetBytes(data);
request.ContentLength = bytes.Length;
Use_WebClient.WriteFormDataIntoRequest(ref request, bytes);
resHtml = Use_WebClient.Get_ResponseHtml(ref request);
resHtml = WebUtility.UrlDecode(resHtml);
if (resHtml.IndexOf(Check_PageIsQueryPrice) < 0)
{
goto Page_LoginPost;
}
#endregion
#endregion
#region -- 取得水果相關資訊 --
#region -- 1.進入登入後的頁面 --
request = (HttpWebRequest)HttpWebRequest.Create(Page_QueryPrice);
request.CookieContainer = cookieContainer;
request.UserAgent = Request_UserAgent;
request.Accept = Request_Accept;
request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
resHtml = Use_WebClient.Get_ResponseHtml(ref request);
nameValueCollection.Clear();
nameValueCollection.AddRange(await Crawler.Todo_AngleSharp.GetHtmlDocument(resHtml, "form input[type='text']"));
nameValueCollection.AddRange(await Crawler.Todo_AngleSharp.GetHtmlDocument(resHtml, "form input[type='hidden']"));
nameValueCollection.AddRange(await Crawler.Todo_AngleSharp.GetHtmlDocument(resHtml, "form select"));
nameValueCollection.AddRange(await Crawler.Todo_AngleSharp.GetHtmlDocument(resHtml, "span#ctl00_contentPlaceHolder_ucCoopVegFruitMarket_chklMarket", "104,109"));
DataCollation.ListItemReplace(ref nameValueCollection, "__ASYNCPOST", "true");
DataCollation.ListItemReplace(ref nameValueCollection, "ctl00$contentPlaceHolder$btnQuery", "查詢");
DataCollation.ListItemReplace(ref nameValueCollection, "ctl00$contentPlaceHolder$txtProductNo", "O");
DataCollation.ListItemReplace(ref nameValueCollection, "ctl00$ScriptManager_Master", "ctl00$ScriptManager_Master|ctl00$contentPlaceHolder$btnQuery");
DataCollation.ListItemReplace(ref nameValueCollection, "ctl00_contentPlaceHolder_ucCoopVegFruitMarket", "109,104");
CultureInfo culture = new CultureInfo("zh-TW");
culture.DateTimeFormat.Calendar = new TaiwanCalendar();
DataCollation.ListItemReplace(ref nameValueCollection, "ctl00$contentPlaceHolder$txtStartDate", dap_Start.SelectedDate.Value.ToString("yyy/MM/dd", culture));
DataCollation.ListItemReplace(ref nameValueCollection, "ctl00$contentPlaceHolder$txtEndDate", dap_End.SelectedDate.Value.ToString("yyy/MM/dd", culture));
#endregion
#region -- 2.Post查詢資料 --
request = (HttpWebRequest)HttpWebRequest.Create(Page_QueryPrice);
request.CookieContainer = cookieContainer;
request.UserAgent = Request_UserAgent;
request.Accept = Request_Accept;
request.Method = "POST";
request.ContentType = Request_ContentType;
request.AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip;
string data1 = string.Join("&", nameValueCollection.Select(x => string.Format("{0}={1}", WebUtility.UrlEncode(x.Key), WebUtility.UrlEncode(x.Value))));
byte[] bytes1 = Encoding.UTF8.GetBytes(data1);
request.ContentLength = bytes1.Length;
Use_WebClient.WriteFormDataIntoRequest(ref request, bytes1);
resHtml = Use_WebClient.Get_ResponseHtml(ref request);
resHtml = WebUtility.HtmlDecode(resHtml);
#endregion
#region -- 3.
List <VegFruitMarketSupplyPrice> supplyPrices = new List <VegFruitMarketSupplyPrice>();
var table_data = await Crawler.Todo_AngleSharp.GetVegFruitMarketData(resHtml, "table tr.main_main");
foreach (var tr in table_data)
{
var temp_tr = new VegFruitMarketSupplyPrice();
var prop = temp_tr.GetType().GetProperties();
for (int i = 0; i < prop.Length; i++)
{
var temp_count = tr.Count;
var temp_val = (temp_count < i) ? string.Empty : tr[i];
prop[i].SetValue(temp_tr, temp_val);
}
supplyPrices.Add(temp_tr);
}
dag_Show.ItemsSource = supplyPrices;
#endregion
#endregion
}
