public void addRerouteItem(string url)
{
if (isRerouting)
{
// check no duplicate
bool found = false;
lock (_LOCK)
{
foreach (RouteItem rItem in changedRoutes)
{
if (rItem.URL == url)
{
found = true;
break;
}
}
if (!found)
{
RouteItem newItem = new RouteItem(url);
changedRoutes.Add(newItem);
List <String> results = DnsFuncs.GetDnsRecords(url, false);
foreach (string ipAddress in results)
{
if (newItem.AddIpAddress(IPAddress.Parse(ipAddress)))
{
RouteInterop.AddRoute(ipAddress.Trim(), "255.255.255.255", gateway.ToString(), gatewayIndex);
}
}
}
}
}
}
void AddRerouteByDNSName(string name)
{
var results = DnsFuncs.GetDnsRecords(name);
foreach (string ipAddress in results)
{
/*System.Diagnostics.Process process = new System.Diagnostics.Process();
* System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo();
* startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
* startInfo.FileName = "cmd.exe";
* startInfo.Arguments = "/C route add " + ipAddress.Trim() + " mask 255.255.255.255 " + gateway;
* startInfo.Verb = "runas";
* process.StartInfo = startInfo;
* process.Start();
* process.WaitForExit();*/
RouteInterop.AddRoute(ipAddress.Trim(), "255.255.255.255", gateway.ToString(), gatewayIndex);
}
}
public void RerouteNetflix()
{
if (isRerouting)
{
foreach (IPAddressRange range in netflixRanges)
{
RouteInterop.AddRoute(range.ipAddressLower, range.mask, gateway, gatewayIndex);
}
lock (_LOCK)
{
addRerouteItem("netflix.com");
addRerouteItem("nflxext.com");
}
// Go ahead and ping these urls so they go in cache
DnsFuncs.GetDnsRecords("secure.netflix.com", false);
DnsFuncs.GetDnsRecords("codex.nflxext.com", false);
DnsFuncs.GetDnsRecords("assets.nflxext.com", false);
DnsFuncs.GetDnsRecords("api-global.netflix.com", false);
DnsFuncs.GetDnsRecords("customerevents.netflix.com", false);
}
}
void CheckDNSCache()
{
System.Diagnostics.Process process = new System.Diagnostics.Process();
System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo();
startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
startInfo.FileName = "cmd.exe";
startInfo.Arguments = "/C ipconfig /displaydns";
startInfo.CreateNoWindow = true;
//startInfo.Verb = "runas";
process.StartInfo = startInfo;
process.StartInfo.UseShellExecute = false;
process.StartInfo.RedirectStandardOutput = true;
process.Start();
string output = process.StandardOutput.ReadToEnd();
process.WaitForExit();
var result = output.Split(new[] { '\r', '\n' });
bool netflixSpotted = false;
string cname = null;
RouteItem currItem = null;
foreach (string line in result)
{
if (line.Length > 20)
{
string trimmedLine = line.Trim();
if (trimmedLine.Substring(0, 11) == "Record Name")
{
if (cname != null)
{
netflixSpotted = trimmedLine.Contains(cname);
}
else
{
/*netflixSpotted = trimmedLine.Contains("netflix.com") || trimmedLine.Contains("nflxext.com");
*
* StringCollection urls = Properties.Settings.Default.rerouteURLs;*/
lock (_LOCK)
{
foreach (RouteItem rItem in changedRoutes)
{
int index = trimmedLine.IndexOf(rItem.URL);
if (index > 0)
{
if (trimmedLine[index - 1] == '.' || trimmedLine[index - 1] == ' ')
{
netflixSpotted = true;
currItem = rItem;
break;
}
}
/*if (trimmedLine.Contains(rItem.URL))
* {
* netflixSpotted = true;
* currItem = rItem;
* break;
* }*/
}
}
}
}
else if (netflixSpotted)
{
if (trimmedLine.Substring(0, 12) == "CNAME Record")
{
cname = trimmedLine.Split(':')[1].Trim();
netflixSpotted = false;
}
if (trimmedLine.Substring(0, 15) == "A (Host) Record")
{
cname = null;
var split = trimmedLine.Split(':');
if (split.Count <string>() == 2) // not ipv6
{
/*process = new System.Diagnostics.Process();
* startInfo = new System.Diagnostics.ProcessStartInfo();
* startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
* startInfo.FileName = "cmd.exe";
* startInfo.Arguments = "/C route add " + split[1].Trim() + " mask 255.255.255.255 " + gateway;
* startInfo.Verb = "runas";
* process.StartInfo = startInfo;
* process.Start();
* process.WaitForExit();*/
string newIp = split[1].Trim();
if (currItem != null)
{
// if not added
if (currItem.AddIpAddress(IPAddress.Parse(newIp)))
{
RouteInterop.AddRoute(split[1].Trim(), "255.255.255.255", gateway.ToString(), gatewayIndex);
}
else
{
int i = 0;
}
}
netflixSpotted = false;
currItem = null;
}
}
}
}
}
/*var results = DnsFuncs.GetDnsTable();
*
* foreach (string ipAddress in results)
* {
* RouteInterop.AddRoute(ipAddress.Trim(), "255.255.255.255", gateway.ToString(), gatewayIndex);
* }
*
* AddRerouteByDNSName("netflix.com");
* AddRerouteByDNSName("www.netflix.com");
* AddRerouteByDNSName("secure.netflix.com");
* AddRerouteByDNSName("codex.nflxext.com");
* AddRerouteByDNSName("assets.nflxext.com");
* AddRerouteByDNSName("api-global.netflix.com");
* AddRerouteByDNSName("customerevents.netflix.com");*/
}