HostsManager.Module.clsEditHosts.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace HostsManager
{
    public static class clsEditHosts
    {
        public static void edit(String editInternal, ArrayList urls,frmCore f)
        {
            clsEditor c = new clsEditor();
            if (editInternal=="INTERNAL")
                c.doEditIntern(urls,f);
            else if(editInternal=="WORDPAD")
                c.doEditExtern(f);
        }

        public static void edit(String editInternal, ArrayList urls, String editorPath, frmCore f)
        {
            clsEditor c = new clsEditor();
            if (editInternal == "INTERNAL")
                c.doEditIntern(urls,f);
            else if (editInternal == "WORDPAD")
                c.doEditExtern(f);
            else if (editInternal == "CUSTOM")
                c.doEditCustom(editorPath);
        }
    }
    class clsEditor
    {

        public delegate void openHelperDeleg(frmCore f, frmEditHosts f1);
        private void openHelper(frmCore f,frmEditHosts f1)
        {
            if (f.InvokeRequired)
                f.Invoke(new openHelperDeleg(openHelper),new object[] {f,f1});
            else
                f1.ShowDialog(f);
        }
        public String doEditIntern(ArrayList urls,frmCore frm)
        {
            String fileText = "";
            try
            {
                clsUtilitys.Dialogs.dlgOptions o1 = new clsUtilitys.Dialogs.dlgOptions();
                o1.frm = (frmCore)frm;
                o1.txt = "Reading hosts file...";
                System.Threading.Thread start = new Thread(new ParameterizedThreadStart(clsUtilitys.Dialogs.showDialog));
                start.Start(o1);
                
                String txt = System.IO.File.ReadAllText(Environment.GetEnvironmentVariable("windir") + "\\system32\\drivers\\etc\\hosts");


                frmEditHosts f = new frmEditHosts();
                f.mText = txt;
                if (start != null)
                {
                    clsUtilitys.Dialogs.closeDialog();
                    start.Abort();
                }
                openHelper(frm,f);
                
                if (f.DialogResult == DialogResult.OK)
                {                    
                    System.IO.File.WriteAllText(Environment.GetEnvironmentVariable("windir") + "\\system32\\drivers\\etc\\hosts", f.mText);
                    f.mText="";
                }
            }
            catch (Exception) {
                clsUtilitys.Dialogs.dlgOptions o1 = new clsUtilitys.Dialogs.dlgOptions();
                o1.frm = (frmCore)frm;
                o1.txt = "Error reading/writing hosts file.";
                o1.okbutton=true;
                System.Threading.Thread start = new Thread(new ParameterizedThreadStart(clsUtilitys.Dialogs.showDialog));
                start.Start(o1);          
            }
            return fileText;
        }

        public void doEditExtern(frmCore f)
        {
            try
            {
                clsUtilitys.Dialogs.dlgOptions o1 = new clsUtilitys.Dialogs.dlgOptions();
                o1.frm = (frmCore)f;
                o1.txt = "File has been opened in external editor.\nPlease close it to continue.";
                System.Threading.Thread start = new System.Threading.Thread(new System.Threading.ParameterizedThreadStart(clsUtilitys.Dialogs.showDialog));
                start.Start(o1);

                System.Diagnostics.Process p=System.Diagnostics.Process.Start("wordpad.exe", Environment.GetEnvironmentVariable("windir") + "\\system32\\drivers\\etc\\hosts");
                p.WaitForExit();

                if (start != null)
                {
                    clsUtilitys.Dialogs.closeDialog();
                    start.Abort();
                }
            }
            catch (Exception) { MessageBox.Show("Could not open external editor."); }
        }

        public void doEditCustom(String editorPath)
        {
            try
            {
                System.Diagnostics.Process p = System.Diagnostics.Process.Start(editorPath, Environment.GetEnvironmentVariable("windir") + "\\system32\\drivers\\etc\\hosts");
                p.WaitForExit();
            }
            catch (Exception) { MessageBox.Show("Could not open external editor."); }
        }
    }
}