Mass SMS Sender and GET Contact List From Android C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace SMS_4_PK_BY_HAT
{
    public partial class Form1 : Form
    {
            string[] a;
            string messages = "";
            string sig="";
            string namer = "";
            static int counter = 0;

            public List<string> arr_of_contacts()
            {
                List<string> contacts= new List<string>();
                string url = "http://" + ipAdd.Text + ":" + port_in.Text;
                WebRequest request = WebRequest.Create(url);
                WebResponse response = request.GetResponse();
                Stream data = response.GetResponseStream();
                string html = String.Empty;
                using (StreamReader sr = new StreamReader(data))
                {
                    html += sr.ReadToEnd();
                      //contacts.Add(sr.ReadToEnd());
                }
              //  MessageBox.Show(html);
                MatchCollection mc = Regex.Matches(html, @"\d+");
                foreach (Match m in mc)
                {
                    //MessageBox.Show(m.Value.Trim(' '));
                    if (m.Value.Length == 11)
                    {
                        contacts.Add(m.Value.Trim(' '));
                    }
                }

                //contacts.Add(m.Value.Split('\n')[0]);
                return contacts;
            }

        public Form1()
        {
            InitializeComponent();
            backgroundWorker1.DoWork += backgroundWorker1_DoWork;
            backgroundWorker1.ProgressChanged += backgroundWorker1_ProgressChanged;
            backgroundWorker1.WorkerReportsProgress = true;
            toolTip1.SetToolTip(button9, "Test Your Connection with Your Device");
            button1.Enabled = false;
            button10.Enabled = false;
            comboBox1.SelectedItem = "Ufone";
            label19.Hide();
            label20.Hide();
        }

        private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {

            progressBar1.Value = e.ProgressPercentage;
            //char[] splitter = { '\n', ':' };
            //string[] datashow = result_textbox.Text.Split(splitter);
            string[] phone_no = richTextBox1.Text.Split('\n');
           // for (int i = 0; i < a.Length;i++ )
            {
               // dataGridView1.Rows.Add(a[i], a[i+5], messagebox.Text, a[i+2], DateTime.Now.ToString("mm:ss tt"));

             //   dataGridView1.Rows.Add(a[i], a[i + 5], messagebox.Text, a[i + 2], DateTime.Now.ToString("mm:ss tt"));
            }

            dataGridView1.Rows.Add(counter, phone_no[counter], messagebox.Text, DateTime.Now.ToString("mm:ss tt"));
            counter++;
            label19.Text = DateTime.Now.ToString("h:mm:ss tt");
              }

        private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
        {

            Invoke(new Action(() => a = richTextBox1.Text.Split('\n')));
            Invoke(new Action(() => messages = messagebox.Text));
            Invoke(new Action(() => namer = textBox3.Text));
            Invoke(new Action(() => sig = signature.Text));
            int  counter = 0 ;
            foreach(var no in a ){

                  Thread.Sleep(Convert.ToInt32(Math.Round(numericUpDown1.Value, 0)));
              //  Thread.Sleep(8000);
                  string url = "http://" + ipAdd.Text + ":" + port_in.Text + "/send/?pass=" + textBox2.Text + "&number=" + System.Net.WebUtility.UrlEncode(no) + "&data=" + namer + " :\n" + messages + "\n" + sig;
                WebRequest request = WebRequest.Create(url);
                WebResponse response = request.GetResponse();
                Stream data = response.GetResponseStream();
                string html = String.Empty;
                using (StreamReader sr = new StreamReader(data))
                {
                    html += sr.ReadToEnd();
                }

                Invoke(new Action(() => result_textbox.AppendText(counter+"\n"+html.ToString())));
              //  richTextBox1.Text = html.ToString();

                backgroundWorker1.ReportProgress(counter++);
            }

        }

        private void button1_Click(object sender, EventArgs e)
        {
            label16.Text = DateTime.Now.ToString("h:mm:ss tt");
            progressBar1.Maximum = richTextBox1.Text.Split('\n').Length;
            button10.Enabled = true;
            backgroundWorker1.RunWorkerAsync();
            label19.Show();
            label20.Show();
        }

        private void messagebox_TextChanged(object sender, EventArgs e)
        {
            int left_char = 122 - messagebox.TextLength;
            char_left.Text = left_char.ToString();
        }

        private void toolStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e)
        {

        }

        private void richTextBox1_TextChanged(object sender, EventArgs e)
        {
            groupBox1.Text = "Contacts Uploads : " + richTextBox1.Text.Split('\n').Length.ToString();
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {


        }

        private void button2_Click(object sender, EventArgs e)
        {
            string[] a = richTextBox1.Text.Split('\n');
            richTextBox1.Text = "";
            for (int i = 0; i < a.Length; i++)
            {
                richTextBox1.Text += preffixer.Text + a[i].ToString() + "\n";
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //textBox1.Text.ToCharArray()[0]
            char[] trimer = { textBox1.Text.ToCharArray()[0]};
            string[] a = richTextBox1.Text.Split('\n');
            richTextBox1.Text = "";
            for (int i = 0; i < a.Length; i++)
            {
                richTextBox1.Text += a[i].ToString().Trim(trimer) + "\n";
            }

        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void load_contacts_Click(object sender, EventArgs e)
        {

            for (int t = 0; t < arr_of_contacts().ToArray().Length; t++)
                    {
                        checkedListBox1.Items.Add(arr_of_contacts().ToArray()[t]);
                    }

        }

        private void button4_Click(object sender, EventArgs e)
        {
            foreach (object itemChecked in checkedListBox1.CheckedItems)
            {
                richTextBox1.Text += "\n"+itemChecked.ToString();
            }

        }

        private void button5_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < checkedListBox1.Items.Count; i++)
            {
                checkedListBox1.SetItemChecked(i, true);
            }
        }

        private void button6_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < checkedListBox1.Items.Count; i++)
            {
                checkedListBox1.SetItemChecked(i, false);
            }
        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (comboBox1.SelectedItem == "Mobilink")
            {
                comboBox2.BackColor = Color.Red;
                comboBox2.Items.Clear();
                //0300, 0301, 0302, 0303, 0304, 0305, 0306, 0307, 0308, 0309
                for (int i = 0; i <= 9;i++ )
                {
                    comboBox2.Items.Add("30" + i);
                }

            }
            else if (comboBox1.SelectedItem == "Telenor")
            {
                comboBox2.BackColor = Color.BlueViolet;

                comboBox2.Items.Clear();
                for (int i = 1; i <= 7; i++)
                {
                    comboBox2.Items.Add("34" + i);
                }
            }
            else if (comboBox1.SelectedItem == "Ufone")
            {
                comboBox2.BackColor = Color.Orange;

                comboBox2.Items.Clear();
                for (int i = 1; i <= 6; i++)
                {
                    comboBox2.Items.Add("33" + i);
                }
            }

            else if (comboBox1.SelectedItem == "Warid")
            {
                comboBox2.BackColor = Color.Green;

                comboBox2.Items.Clear();
                for (int i = 1; i <= 5; i++)
                {
                    comboBox2.Items.Add("32" + i);
                }
            }

            else if (comboBox1.SelectedItem == "Zong")
            {
                comboBox2.BackColor = Color.Purple;
                comboBox2.Items.Clear();

                for (int i = 1; i <= 5; i++)
                {
                    comboBox2.Items.Add("31" + i);
                }
            }

            else if (comboBox1.SelectedItem == "Instaphone")
            {
                comboBox2.BackColor = Color.Pink;
                comboBox2.Items.Clear();
                comboBox2.Items.Add("346");
            }

            else if (comboBox1.SelectedItem == "SCOM (AJK & Northern Areas)")
            {
                comboBox2.BackColor = Color.PeachPuff;
                comboBox2.Items.Clear();
                comboBox2.Items.Add("3555");
            }

            else if (comboBox1.SelectedItem == "Local (Northern Areas)")
            {
                comboBox2.BackColor = Color.MintCream;
                comboBox2.Items.Clear();
                comboBox2.Items.Add("581");
            }

        }

        private void button7_Click(object sender, EventArgs e)
        {
            //rnd.Next(0, 9)
            Random rnd = new Random();
            List<string> random_contacts = new List<string>();
            for (int i = 0; i <= Convert.ToInt32(ranger.Text);i++)
            {
                random_contacts.Add(country_code.Text + comboBox2.SelectedItem + rnd.Next(0, 9) + rnd.Next(0, 9) + rnd.Next(0, 9) + rnd.Next(0, 9) + rnd.Next(0, 9) + rnd.Next(0, 9) + rnd.Next(0, 9));
            }

            listBox1.DataSource = random_contacts;
        }

        private void button8_Click(object sender, EventArgs e)
        {
            foreach (var item in listBox1.Items)
            {
                richTextBox1.Text += "\n" + item;
            }
        }

        private void button9_Click(object sender, EventArgs e)
        {

            Socket s = new Socket(AddressFamily.InterNetwork,
       SocketType.Stream,
       ProtocolType.Tcp);
            try
            {
                s.Connect(ipAdd.Text, Convert.ToInt32(port_in.Text));
                MessageBox.Show("Connection Established");
                button1.Enabled = true;
            }
            catch(Exception ex){
                MessageBox.Show("Error ! \n Connection Could Not Be Established ! \n"+ex.ToString());
            }
        }

        private void toolTip1_Popup(object sender, PopupEventArgs e)
        {

        }

        private void button10_Click(object sender, EventArgs e)
        {
            backgroundWorker1.CancelAsync();
        }
    }
}

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