#endif
using System;
+using System.Globalization;
using System.IO;
using System.Net.Sockets;
using System.Text;
NetworkCredential credentials;
IPHostEntry hostEntry;
IPEndPoint localEndPoint;
+ IPEndPoint remoteEndPoint;
IWebProxy proxy;
int timeout = 100000;
int rwTimeout = 300000;
const string PasswordCommand = "PASS";
const string TypeCommand = "TYPE";
const string PassiveCommand = "PASV";
+ const string ExtendedPassiveCommand = "EPSV";
const string PortCommand = "PORT";
+ const string ExtendedPortCommand = "EPRT";
const string AbortCommand = "ABOR";
const string AuthCommand = "AUTH";
const string RestCommand = "REST";
internal FtpWebRequest (Uri uri)
{
this.requestUri = uri;
+#pragma warning disable 618
this.proxy = GlobalProxySelection.Select;
+#pragma warning restore 618
}
static Exception GetMustImplement ()
}
}
-#if !NET_2_1
+#if !MOBILE
[MonoTODO]
public static new RequestCachePolicy DefaultCachePolicy
{
State = RequestState.Scheduled;
Thread thread = new Thread (ProcessRequest);
+ thread.IsBackground = true;
thread.Start ();
}
}
asyncResult = new FtpAsyncResult (callback, state);
Thread thread = new Thread (ProcessRequest);
+ thread.IsBackground = true;
thread.Start ();
return asyncResult;
foreach (IPAddress address in hostEntry.AddressList) {
sock = new Socket (address.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
- IPEndPoint remote = new IPEndPoint (address, requestUri.Port);
+ remoteEndPoint = new IPEndPoint (address, requestUri.Port);
- if (!ServicePoint.CallEndPointDelegate (sock, remote)) {
+ if (!ServicePoint.CallEndPointDelegate (sock, remoteEndPoint)) {
sock.Close ();
sock = null;
} else {
try {
- sock.Connect (remote);
+ sock.Connect (remoteEndPoint);
localEndPoint = (IPEndPoint) sock.LocalEndPoint;
break;
} catch (SocketException exc) {
}
// Probably we could do better having here a regex
- Socket SetupPassiveConnection (string statusDescription)
+ Socket SetupPassiveConnection (string statusDescription, bool ipv6)
{
// Current response string
string response = statusDescription;
if (response.Length < 4)
throw new WebException ("Cannot open passive data connection");
-
- // Look for first digit after code
- int i;
- for (i = 3; i < response.Length && !Char.IsDigit (response [i]); i++)
- ;
- if (i >= response.Length)
- throw new WebException ("Cannot open passive data connection");
-
- // Get six elements
- string [] digits = response.Substring (i).Split (new char [] {','}, 6);
- if (digits.Length != 6)
- throw new WebException ("Cannot open passive data connection");
-
- // Clean non-digits at the end of last element
- int j;
- for (j = digits [5].Length - 1; j >= 0 && !Char.IsDigit (digits [5][j]); j--)
- ;
- if (j < 0)
- throw new WebException ("Cannot open passive data connection");
-
- digits [5] = digits [5].Substring (0, j + 1);
-
- IPAddress ip;
- try {
- ip = IPAddress.Parse (String.Join (".", digits, 0, 4));
- } catch (FormatException) {
- throw new WebException ("Cannot open passive data connection");
- }
- // Get the port
- int p1, p2, port;
- if (!Int32.TryParse (digits [4], out p1) || !Int32.TryParse (digits [5], out p2))
- throw new WebException ("Cannot open passive data connection");
+ int port = ipv6 ? GetPortV6 (response) : GetPortV4 (response);
- port = (p1 << 8) + p2; // p1 * 256 + p2
- //port = p1 * 256 + p2;
if (port < IPEndPoint.MinPort || port > IPEndPoint.MaxPort)
throw new WebException ("Cannot open passive data connection");
- IPEndPoint ep = new IPEndPoint (ip, port);
+ IPEndPoint ep = new IPEndPoint (remoteEndPoint.Address, port);
Socket sock = new Socket (ep.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
try {
sock.Connect (ep);
return sock;
}
+ // GetPortV4, GetPortV6, FormatAddress and FormatAddressV6 are copied from referencesource
+ // TODO: replace FtpWebRequest completely.
+ private int GetPortV4(string responseString)
+ {
+ string [] parsedList = responseString.Split(new char [] {' ', '(', ',', ')'});
+
+ // We need at least the status code and the port
+ if (parsedList.Length <= 7) {
+ throw new FormatException(SR.GetString(SR.net_ftp_response_invalid_format, responseString));
+ }
+
+ int index = parsedList.Length-1;
+ // skip the last non-number token (e.g. terminating '.')
+#if MONO
+ // the MS code expects \r\n here in parsedList[index],
+ // but we're stripping the EOL off earlier so the array contains
+ // an empty string here which would make Char.IsNumber throw
+ // TODO: this can be removed once we switch FtpWebRequest to referencesource
+ if (parsedList[index] == "" || !Char.IsNumber(parsedList[index], 0))
+#else
+ if (!Char.IsNumber(parsedList[index], 0))
+#endif
+ index--;
+
+ int port = Convert.ToByte(parsedList[index--], NumberFormatInfo.InvariantInfo);
+ port = port |
+ (Convert.ToByte(parsedList[index--], NumberFormatInfo.InvariantInfo) << 8);
+
+ return port;
+ }
+
+ private int GetPortV6(string responseString)
+ {
+ int pos1 = responseString.LastIndexOf("(");
+ int pos2 = responseString.LastIndexOf(")");
+ if (pos1 == -1 || pos2 <= pos1)
+ throw new FormatException(SR.GetString(SR.net_ftp_response_invalid_format, responseString));
+
+ // addressInfo will contain a string of format "|||<tcp-port>|"
+ string addressInfo = responseString.Substring(pos1+1, pos2-pos1-1);
+
+ // Although RFC2428 recommends using "|" as the delimiter,
+ // It allows ASCII characters in range 33-126 inclusive.
+ // We should consider allowing the full range.
+
+ string [] parsedList = addressInfo.Split(new char [] {'|'});
+ if (parsedList.Length < 4)
+ throw new FormatException(SR.GetString(SR.net_ftp_response_invalid_format, responseString));
+
+ return Convert.ToInt32(parsedList[3], NumberFormatInfo.InvariantInfo);
+ }
+
+ private String FormatAddress(IPAddress address, int Port )
+ {
+ byte [] localAddressInBytes = address.GetAddressBytes();
+
+ // produces a string in FTP IPAddress/Port encoding (a1, a2, a3, a4, p1, p2), for sending as a parameter
+ // to the port command.
+ StringBuilder sb = new StringBuilder(32);
+ foreach (byte element in localAddressInBytes) {
+ sb.Append(element);
+ sb.Append(',');
+ }
+ sb.Append(Port / 256 );
+ sb.Append(',');
+ sb.Append(Port % 256 );
+ return sb.ToString();
+ }
+
+ private string FormatAddressV6(IPAddress address, int port) {
+ StringBuilder sb = new StringBuilder(43); // based on max size of IPv6 address + port + seperators
+ String addressString = address.ToString();
+ sb.Append("|2|");
+ sb.Append(addressString);
+ sb.Append('|');
+ sb.Append(port.ToString(NumberFormatInfo.InvariantInfo));
+ sb.Append('|');
+ return sb.ToString();
+ }
+ //
+
Exception CreateExceptionFromResponse (FtpStatus status)
{
FtpWebResponse ftpResponse = new FtpWebResponse (this, requestUri, method, status);
Socket InitDataConnection ()
{
FtpStatus status;
-
+ bool ipv6 = remoteEndPoint.AddressFamily == AddressFamily.InterNetworkV6;
+
if (usePassive) {
- status = SendCommand (PassiveCommand);
- if (status.StatusCode != FtpStatusCode.EnteringPassive) {
+ status = SendCommand (ipv6 ? ExtendedPassiveCommand : PassiveCommand);
+ if (status.StatusCode != (ipv6 ? (FtpStatusCode)229 : FtpStatusCode.EnteringPassive)) { // FtpStatusCode doesn't contain code 229 for EPSV so we need to cast...
throw CreateExceptionFromResponse (status);
}
- return SetupPassiveConnection (status.StatusDescription);
+ return SetupPassiveConnection (status.StatusDescription, ipv6);
}
// Open a socket to listen the server's connection
- Socket sock = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
+ Socket sock = new Socket (remoteEndPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
try {
sock.Bind (new IPEndPoint (localEndPoint.Address, 0));
sock.Listen (1); // We only expect a connection from server
}
IPEndPoint ep = (IPEndPoint) sock.LocalEndPoint;
- string ipString = ep.Address.ToString ().Replace ('.', ',');
- int h1 = ep.Port >> 8; // ep.Port / 256
- int h2 = ep.Port % 256;
- string portParam = ipString + "," + h1 + "," + h2;
- status = SendCommand (PortCommand, portParam);
+ var portParam = ipv6 ? FormatAddressV6 (ep.Address, ep.Port) : FormatAddress (ep.Address, ep.Port);
+
+ status = SendCommand (ipv6 ? ExtendedPortCommand : PortCommand, portParam);
if (status.StatusCode != FtpStatusCode.CommandOK) {
sock.Close ();
internal bool ChangeToSSLSocket (ref Stream stream) {
#if SECURITY_DEP
var provider = MonoTlsProviderFactory.GetProviderInternal ();
- var settings = new MSI.MonoTlsSettings ();
+ var settings = MSI.MonoTlsSettings.CopyDefaultSettings ();
settings.UseServicePointManagerCallback = true;
var sslStream = provider.CreateSslStream (stream, true, settings);
sslStream.AuthenticateAsClient (requestUri.Host, null, SslProtocols.Default, false);
projects / mono.git / blobdiff