public override IpAddresses ResolveDNS(string host)
{
IpAddresses result = new IpAddresses();
string getentPath = LocateExecutable("getent");
if (getentPath != "")
{
// Note: CNAME record are automatically followed.
SystemShell s = new SystemShell();
s.Path = getentPath;
s.Arguments.Add("ahosts");
s.Arguments.Add(SystemShell.EscapeHost(host));
s.NoDebugLog = true;
if (s.Run())
{
string o = s.Output;
o = o.CleanSpace();
foreach (string line in o.Split('\n'))
{
string[] fields = line.Split(' ');
if (fields.Length < 2)
{
continue;
}
if (fields[1].Trim() != "STREAM")
{
continue;
}
result.Add(fields[0].Trim());
}
}
}
return(result);
}
public override void ResolveWithoutAnswer(string host)
{
// Base method with Dns.GetHostEntry have cache issue, for example on Fedora.
if (Platform.Instance.FileExists("/usr/bin/host"))
{
ShellCmd("host -W 5 -t A " + SystemShell.EscapeHost(host));
}
else
{
base.ResolveWithoutAnswer(host);
}
}
// Encounter Mono issue about the .Net method on OS X, similar to Mono issue under Linux. Use shell instead, like Linux
public override long Ping(string host, int timeoutSec)
{
// Note: Linux timeout is -w, OS X timeout is -t
string cmd = "ping -c 1 -t " + timeoutSec + " -q -n " + SystemShell.EscapeHost(host);
string result = ShellCmd(cmd);
// Note: Linux have mdev, OS X have stddev
string sMS = Utils.ExtractBetween(result, "min/avg/max/stddev = ", "/");
float iMS;
if (float.TryParse(sMS, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.InvariantCulture, out iMS) == false)
{
iMS = -1;
}
return((long)iMS);
}
public override long Ping(string host, int timeoutSec)
{
string cmd = "ping -c 1 -w " + timeoutSec.ToString() + " -q -n " + SystemShell.EscapeHost(host);
string result = ShellCmd(cmd, true);
string sMS = Utils.ExtractBetween(result.ToLowerInvariant(), "min/avg/max/mdev = ", "/");
float iMS;
/*
* if (float.TryParse(sMS, out iMS))
* return (Int64)iMS;
* else
* return -1;
*/
if (float.TryParse(sMS, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.InvariantCulture, out iMS) == false)
{
iMS = -1;
}
return((long)iMS);
}
public override IpAddresses ResolveDNS(string host)
{
// Base method with Dns.GetHostEntry have cache issue, for example on Fedora. OS X it's based on Mono.
// Also, base methods with Dns.GetHostEntry sometime don't fetch AAAA IPv6 addresses.
IpAddresses result = new IpAddresses();
string hostPath = LocateExecutable("host");
if (hostPath != "")
{
// Note: CNAME record are automatically followed.
SystemShell s = new SystemShell();
s.Path = "/usr/bin/host";
s.Arguments.Add("-W 5");
s.Arguments.Add(SystemShell.EscapeHost(host));
s.NoDebugLog = true;
if (s.Run())
{
string hostout = s.Output;
foreach (string line in hostout.Split('\n'))
{
string ipv4 = Utils.RegExMatchOne(line, "^.*? has address (.*?)$");
if (ipv4 != "")
{
result.Add(ipv4.Trim());
}
string ipv6 = Utils.RegExMatchOne(line, "^.*? has IPv6 address (.*?)$");
if (ipv6 != "")
{
result.Add(ipv6.Trim());
}
}
}
}
return(result);
}
public HttpResponse Fetch(HttpRequest request)
{
HttpResponse response = new HttpResponse();
ExceptionIfRequired();
ProgramScope programScope = new ProgramScope(this.GetPath(), "curl");
// Don't use proxy if connected to the VPN, or in special cases (checking) during connection.
bool bypassProxy = request.BypassProxy;
if (bypassProxy == false)
{
bypassProxy = Engine.Instance.IsConnected();
}
string dataParameters = "";
if (request.Parameters.Count > 0)
{
foreach (string k in request.Parameters.Keys)
{
if (dataParameters != "")
{
dataParameters += "&";
}
dataParameters += SystemShell.EscapeAlphaNumeric(k) + "=" + Uri.EscapeUriString(request.Parameters[k]);
}
}
string args = "";
if (bypassProxy == false)
{
string proxyMode = Engine.Instance.Storage.GetLower("proxy.mode");
string proxyWhen = Engine.Instance.Storage.GetLower("proxy.when");
string proxyHost = Engine.Instance.Storage.Get("proxy.host");
int proxyPort = Engine.Instance.Storage.GetInt("proxy.port");
string proxyAuth = Engine.Instance.Storage.Get("proxy.auth").ToLowerInvariant();
string proxyLogin = Engine.Instance.Storage.Get("proxy.login");
string proxyPassword = Engine.Instance.Storage.Get("proxy.password");
if ((proxyWhen == "none") || (proxyWhen == "openvpn"))
{
proxyMode = "none";
}
if (proxyMode == "detect")
{
throw new Exception(Messages.ProxyDetectDeprecated);
}
if (proxyMode == "tor")
{
proxyMode = "socks";
proxyAuth = "none";
proxyLogin = "";
proxyPassword = "";
}
if (proxyMode == "http")
{
args += " --proxy http://" + SystemShell.EscapeHost(proxyHost) + ":" + proxyPort.ToString();
}
else if (proxyMode == "socks")
{
// curl support different types of proxy. OpenVPN not, only socks5. So, it's useless to support other kind of proxy here.
args += " --proxy socks5://" + SystemShell.EscapeHost(proxyHost) + ":" + proxyPort.ToString();
}
if ((proxyMode != "none") && (proxyAuth != "none"))
{
if (proxyAuth == "basic")
{
args += " --proxy-basic";
}
else if (proxyAuth == "ntlm")
{
args += " --proxy-ntlm";
}
if (SystemShell.EscapeInsideQuoteAcceptable(proxyLogin) == false)
{
throw new Exception(MessagesFormatter.Format(Messages.UnacceptableCharacters, "Proxy Login"));
}
if (SystemShell.EscapeInsideQuoteAcceptable(proxyPassword) == false)
{
throw new Exception(MessagesFormatter.Format(Messages.UnacceptableCharacters, "Proxy Password"));
}
if ((proxyLogin != "") && (proxyPassword != ""))
{
args += " --proxy-user \"" + SystemShell.EscapeInsideQuote(proxyLogin) + "\":\"" + SystemShell.EscapeInsideQuote(proxyPassword) + "\"";
}
}
}
args += " \"" + SystemShell.EscapeUrl(request.Url) + "\"";
args += " -sS"; // -s Silent mode, -S with errors
args += " --max-time " + Engine.Instance.Storage.GetInt("tools.curl.max-time").ToString();
string pathCacert = Engine.Instance.LocateResource("cacert.pem");
if (pathCacert != "")
{
args += " --cacert \"" + SystemShell.EscapePath(pathCacert) + "\"";
}
if (request.ForceResolve != "")
{
args += " --resolve " + request.ForceResolve;
}
if (dataParameters != "")
{
args += " --data \"" + dataParameters + "\"";
}
if (request.IpLayer == "4")
{
args += " -4";
}
if (request.IpLayer == "6")
{
args += " -6";
}
args += " -i";
string error = "";
try
{
using (Process p = new Process())
{
p.StartInfo.FileName = SystemShell.EscapePath(this.GetPath());
p.StartInfo.Arguments = args;
p.StartInfo.WorkingDirectory = "";
p.StartInfo.CreateNoWindow = true;
p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.Start();
{
using (System.IO.MemoryStream Stream = new System.IO.MemoryStream())
{
using (System.IO.MemoryStream StreamHeader = new System.IO.MemoryStream())
{
using (System.IO.MemoryStream StreamBody = new System.IO.MemoryStream())
{
byte[] buffer = new byte[4096];
int read;
while ((read = p.StandardOutput.BaseStream.Read(buffer, 0, buffer.Length)) > 0)
{
Stream.Write(buffer, 0, read);
}
if (Stream.Length >= 4)
{
byte[] buffer2 = Stream.ToArray();
int i = 0;
for (; i < Stream.Length - 4; i++)
{
if ((buffer2[i] == 13) && (buffer2[i + 1] == 10) && (buffer2[i + 2] == 13) && (buffer2[i + 3] == 10))
{
StreamHeader.Write(buffer2, 0, i);
StreamBody.Write(buffer2, i + 4, (int)Stream.Length - i - 4);
break;
}
}
if (StreamHeader.Length == 0)
{
StreamHeader.Write(buffer2, 0, (int)Stream.Length);
}
}
else
{
StreamHeader.Write(Stream.ToArray(), 0, (int)Stream.Length);
}
response.BufferHeader = StreamHeader.ToArray();
response.BufferData = StreamBody.ToArray();
}
}
string headers = System.Text.Encoding.ASCII.GetString(response.BufferHeader);
string[] headersLines = headers.Split('\n');
for (int l = 0; l < headersLines.Length; l++)
{
string line = headersLines[l];
if (l == 0)
{
response.StatusLine = line;
}
int posSep = line.IndexOf(":");
if (posSep != -1)
{
string k = line.Substring(0, posSep);
string v = line.Substring(posSep + 1);
response.Headers.Add(new KeyValuePair <string, string>(k.ToLowerInvariant().Trim(), v.Trim()));
}
}
}
}
error = p.StandardError.ReadToEnd();
p.WaitForExit();
response.ExitCode = p.ExitCode;
}
}
catch (Exception e)
{
error = e.Message;
}
programScope.End();
if (error != "")
{
throw new Exception(error.Trim());
}
return(response);
}
public byte[] FetchUrlEx(string url, System.Collections.Specialized.NameValueCollection parameters, string title, bool forceBypassProxy, string resolve)
{
if (Available() == false)
{
throw new Exception(Messages.ToolsCurlRequired);
}
if (Utils.CompareVersions(Version, minVersionRequired) == -1)
{
throw new Exception(GetRequiredVersionMessage());
}
ProgramScope programScope = new ProgramScope(this.GetPath(), "curl");
// Don't use proxy if connected to the VPN, or in special cases (checking) during connection.
bool bypassProxy = forceBypassProxy;
if (bypassProxy == false)
{
bypassProxy = Engine.Instance.IsConnected();
}
string dataParameters = "";
if (parameters != null)
{
foreach (string k in parameters.Keys)
{
if (dataParameters != "")
{
dataParameters += "&";
}
dataParameters += SystemShell.EscapeAlphaNumeric(k) + "=" + Uri.EscapeUriString(parameters[k]);
}
}
string args = "";
if (bypassProxy == false)
{
string proxyMode = Engine.Instance.Storage.Get("proxy.mode").ToLowerInvariant();
string proxyHost = Engine.Instance.Storage.Get("proxy.host");
int proxyPort = Engine.Instance.Storage.GetInt("proxy.port");
string proxyAuth = Engine.Instance.Storage.Get("proxy.auth").ToLowerInvariant();
string proxyLogin = Engine.Instance.Storage.Get("proxy.login");
string proxyPassword = Engine.Instance.Storage.Get("proxy.password");
if (proxyMode == "detect")
{
throw new Exception(Messages.ProxyDetectDeprecated);
}
if (proxyMode == "tor")
{
proxyMode = "socks";
proxyAuth = "none";
proxyLogin = "";
proxyPassword = "";
}
if (proxyMode == "http")
{
args += " --proxy http://" + SystemShell.EscapeHost(proxyHost) + ":" + proxyPort.ToString();
}
else if (proxyMode == "socks")
{
// curl support different types of proxy. OpenVPN not, only socks5. So, it's useless to support other kind of proxy here.
args += " --proxy socks5://" + SystemShell.EscapeHost(proxyHost) + ":" + proxyPort.ToString();
}
if ((proxyMode != "none") && (proxyAuth != "none"))
{
if (proxyAuth == "basic")
{
args += " --proxy-basic";
}
else if (proxyAuth == "ntlm")
{
args += " --proxy-ntlm";
}
if (SystemShell.EscapeInsideQuoteAcceptable(proxyLogin) == false)
{
throw new Exception(MessagesFormatter.Format(Messages.UnacceptableCharacters, "Proxy Login"));
}
if (SystemShell.EscapeInsideQuoteAcceptable(proxyPassword) == false)
{
throw new Exception(MessagesFormatter.Format(Messages.UnacceptableCharacters, "Proxy Password"));
}
if ((proxyLogin != "") && (proxyPassword != ""))
{
args += " --proxy-user \"" + SystemShell.EscapeInsideQuote(proxyLogin) + "\":\"" + SystemShell.EscapeInsideQuote(proxyPassword) + "\"";
}
}
}
args += " \"" + SystemShell.EscapeUrl(url) + "\"";
args += " -sS"; // -s Silent mode, -S with errors
args += " --max-time " + Engine.Instance.Storage.GetInt("tools.curl.max-time").ToString();
Tool cacertTool = Software.GetTool("cacert.pem");
if (cacertTool.Available())
{
args += " --cacert \"" + SystemShell.EscapePath(cacertTool.Path) + "\"";
}
if (resolve != "")
{
args += " --resolve " + resolve;
}
if (dataParameters != "")
{
args += " --data \"" + dataParameters + "\"";
}
string error = "";
byte[] output = default(byte[]);
int exitcode = -1;
try
{
/*
* if ((Engine.Instance != null) && (Engine.Instance.Storage != null) && (Engine.Instance.Storage.GetBool("log.level.debug")))
* {
* string message = "curl " + this.GetPath() + " " + args;
* message = Utils.RegExReplace(message, "[a-zA-Z0-9+/]{30,}=", "{base64-omissis}");
* Engine.Instance.Logs.Log(LogType.Verbose, message);
* }
*/
Process p = new Process();
p.StartInfo.FileName = SystemShell.EscapePath(this.GetPath());
p.StartInfo.Arguments = args;
p.StartInfo.WorkingDirectory = "";
p.StartInfo.CreateNoWindow = true;
p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.Start();
using (var memoryStream = new System.IO.MemoryStream())
{
//p.StandardOutput.BaseStream.CopyTo(memstream); // .Net 4 only
Utils.CopyStream(p.StandardOutput.BaseStream, memoryStream);
output = memoryStream.ToArray();
}
error = p.StandardError.ReadToEnd();
p.WaitForExit();
exitcode = p.ExitCode;
}
catch (Exception e)
{
error = e.Message;
output = default(byte[]);
}
programScope.End();
if (error != "")
{
throw new Exception(error.Trim());
}
return(output);
}