private void SetValueToListView(List <HistoryItem> list)
{
listviewURL.Items.Clear();
int Count = 1;
listviewURL.SmallImageList = imageList1;
foreach (HistoryItem item in list)
{
HttpsToHttp cv = new HttpsToHttp(item.URL);
item.URL = cv.Convert();
GetContentFromURL getc = new GetContentFromURL(item);
String content = getc.ExtractContentFromUrl();
ListViewItem lvi;
if (content == "")
{
lvi = new ListViewItem("", 1);
}
else
{
lvi = new ListViewItem("", 0);
}
lvi.SubItems.Add(item.URL);
lvi.SubItems.Add(item.Title);
lvi.SubItems.Add(item.VisitedTime.ToString());
lvi.SubItems.Add(getc.ExtractContentFromUrl());
lvi.SubItems.Add("BT");
listviewURL.Items.Add(lvi);
Count++;
}
}
private void btnQuet_Click(object sender, EventArgs e)
{
if (txtDiaChi.Text == "")
{
XtraMessageBox.Show("Lỗi: Chưa nhập địa chỉ URL", "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
if (!CheckValidURL(txtDiaChi.Text))
{
XtraMessageBox.Show("URL không hợp lệ", "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
LoadingInForm loading = new LoadingInForm(splashScreenManager1);
loading.ShowWaitForm();
RemovePreviousSeries();
String url = txtDiaChi.Text;
HttpsToHttp cv = new HttpsToHttp(url);
url = cv.Convert();
GetContentFromURL get = new GetContentFromURL(new HistoryItem(url, "", DateTime.Now));
String content = get.ExtractContentFromUrl();
if (content != "")
{
XayDungBieuDo(content);
loading.CloseWaitForm();
}
else
{
loading.CloseWaitForm();
XtraMessageBox.Show("Không thể tải nội dung từ URL", "Lỗi", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
}
//Quét mã nguồn html, phân tích các thẻ image để trích xuất hình ảnh
private List <string> ScanImage(string Url)
{
List <string> imageList = new List <string>();
if (!Url.StartsWith("http://") && !Url.StartsWith("https://"))
{
Url = "http://" + Url;
}
HttpsToHttp cv = new HttpsToHttp(Url);
Url = cv.Convert();
string responseUrl = string.Empty;
string htmlData = ASCIIEncoding.ASCII.GetString(DownloadData(Url, out responseUrl));
if (responseUrl != string.Empty)
{
Url = responseUrl;
}
if (htmlData != string.Empty)
{
string imageHtmlCode = "<img";
string imageSrcCode = @"src=""";
int index = htmlData.IndexOf(imageHtmlCode);
while (index != -1)
{
htmlData = htmlData.Substring(index);
int brackedEnd = htmlData.IndexOf('>');
int start = htmlData.IndexOf(imageSrcCode) + imageSrcCode.Length;
int end = htmlData.IndexOf('"', start + 1);
if (end > start && start < brackedEnd)
{
string loc = htmlData.Substring(start, end - start);
imageList.Add(loc);
}
if (imageHtmlCode.Length < htmlData.Length)
{
index = htmlData.IndexOf(imageHtmlCode, imageHtmlCode.Length);
}
else
{
index = -1;
}
}
for (int i = 0; i < imageList.Count; i++)
{
string img = imageList[i];
string baseUrl = GetBaseURL(Url);
if ((!img.StartsWith("http://") && !img.StartsWith("https://")) &&
baseUrl != string.Empty)
{
img = baseUrl + "/" + img.TrimStart('/');
}
imageList[i] = img;
}
}
return(imageList);
}
