private void Bgw1_DoWork(object sender, DoWorkEventArgs e)
{
this.ResultRichTextBox.Clear();
ScanForm form = (ScanForm)e.Argument;
long totalCount = form.ip_list.Count * form.port_list.Count;
long count = 0;
Console.WriteLine("totalCount: {0}", totalCount);
for (var ipIndex = 0; ipIndex < form.ip_list.Count; ipIndex++)
{
string ip = form.ip_list.ElementAt(ipIndex);
for (var portIndex = 0; portIndex < form.port_list.Count; portIndex++)
{
int port = form.port_list.ElementAt(portIndex);
// 判断是否可通
bool can_connect = Utils.CanConnect(ip, port, form.timeout);
if (can_connect)
{
// 写到结果框中
this.ResultRichTextBox.AppendText(ip + ":" + port + "\n");
}
// 获取比率更新进度条 感觉想复杂了
decimal A = count;
decimal B = totalCount;
decimal T = decimal.Parse((A / B).ToString("0.00"));
BackgroundWorker tmp = ((BackgroundWorker)sender);
tmp.ReportProgress(Convert.ToInt32(T * 100));
Console.WriteLine("percentage: {0}, CancellationPending: {1}", Convert.ToInt32(T * 100), tmp.CancellationPending);
this.ProcessLabel.Text = "当前:" + ip + ":" + port + "\n" + "总计: " + count + "/" + totalCount;
if (tmp.CancellationPending)
{
Console.WriteLine("按了停止按钮");
tmp.ReportProgress(0);
this.ProcessLabel.Text = " ";
Change_Search_Btn_Text("扫描", true);
return;
}
count++;
}
}
// 循环完成
((BackgroundWorker)sender).ReportProgress(100);
this.ProcessLabel.Text = "";
Thread.Sleep(300);
Change_Search_Btn_Text("扫描", true);
}
private void ScanBtn_Click(object sender, EventArgs e)
{
//testIpReg();
// ip地址要求为ipv4地址
// 起始ip是否合法
bool IpStartValid = Utils.CheckIp(this.IpStartTextBox.Text);
if (!IpStartValid)
{
Utils.Alert_Tips("起始IP不合法");
this.IpStartTextBox.Focus();
return;
}
// 结束ip是否合法
bool IpEndValid = Utils.CheckIp(this.IpEndTextBox.Text);
if (!IpEndValid)
{
Utils.Alert_Tips("结束IP不合法");
this.IpEndTextBox.Focus();
return;
}
if (!Check_Port(this.PortTextBox.Text))
{
Utils.Alert_Tips("端口号不合法");
this.PortTextBox.Focus();
return;
}
if (scanFlag)
{
this.ResultRichTextBox.Clear();
ScanForm form = new ScanForm();
string check_res = Prepare_Data(form);
if (check_res != null)
{
Utils.Alert_Tips(check_res);
return;
}
// 开始前 置为停止
Change_Search_Btn_Text("停止", false);
this.Start_Scan(form);
}
else
{
this.End_Scan();
// 结束后 置为扫描
Change_Search_Btn_Text("扫描", true);
}
}
private string Get_Ip_List(ScanForm form)
{
List <string> ip_list = new List <string>();
string startText = this.IpStartTextBox.Text;
string endText = this.IpEndTextBox.Text;
uint ustart = Utils.Ip2UInt(startText);
uint uend = Utils.Ip2UInt(endText);
for (var tmp_ip = ustart; tmp_ip <= uend; tmp_ip++)
{
ip_list.Add(Utils.UIntToIP(tmp_ip));
}
form.ip_list = ip_list;
return(null);
}
private string Prepare_Data(ScanForm form)
{
form.ip_start = this.IpStartTextBox.Text;
form.ip_end = this.IpEndTextBox.Text;
string ip_res = Get_Ip_List(form);
string port_res = Get_Port_List(form);
if (port_res != null)
{
return(port_res);
}
form.timeout = int.Parse(this.TimeoutTextBox.Text);
form.thread_nums = int.Parse(this.ThreadTextBox.Text);
return(null);
}
private void Start_Scan(ScanForm scanForm)
{
this.backgroundWorker1.RunWorkerAsync(scanForm);
}
private string Get_Port_List(ScanForm form)
{
// 22,80,8080-8088
List <int> port_list = new List <int>();
string portText = this.PortTextBox.Text;
// 检查portText的合法性
char[] char_arr = portText.ToCharArray();
// 上个字符是否为符号
bool lastCharIsSymbol = false;
for (var index = 0; index < char_arr.Length; index++)
{
char _char = char_arr[index];
// 当前字符是否为符号
bool isSymbol = !Char.IsDigit(_char);
if (lastCharIsSymbol && isSymbol)
{
return("端口号不合法");
}
else if (isSymbol)
{
// 是符号 置true
lastCharIsSymbol = true;
}
else
{
// 不是符号 置false
lastCharIsSymbol = false;
}
}
string[] port_split_first = portText.Split(',');
for (var i = 0; i < port_split_first.Length; i++)
{
string tmp_str = port_split_first[i];
// 不包含 - 时直接添加跳过
if (!tmp_str.Contains("-"))
{
int tmp_port = int.Parse(tmp_str);
if (!Utils.CheckPort(tmp_port))
{
return("端口号不合法");
}
port_list.Add(tmp_port);
continue;
}
string[] port_split_twice = tmp_str.Split('-');
int t1 = int.Parse(port_split_twice[0]);
int t2 = int.Parse(port_split_twice[1]);
if (!Utils.CheckPort(t1) || !Utils.CheckPort(t2) || t1 > t2)
{
return("端口号不合法");
}
// 按照-分隔的要获取它中间的所有端口
for (var j = t1; j <= t2; j++)
{
// 添加端口
port_list.Add(j);
}
}
//port_list.ForEach(item =>
//{
// this.ResultRichTextBox.AppendText(item + "\n");
//});
form.port_list = port_list;
return(null);
}