// System.Net.EndPointListener
//
// Author:
-// Gonzalo Paniagua Javier (gonzalo@novell.com)
+// Gonzalo Paniagua Javier (gonzalo.mono@gmail.com)
//
// Copyright (c) 2005 Novell, Inc. (http://www.novell.com)
+// Copyright (c) 2012 Xamarin, Inc. (http://xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
-#if NET_2_0
+
+#if SECURITY_DEP
+
+extern alias MonoSecurity;
+
using System.IO;
using System.Net.Sockets;
+using System.Collections;
using System.Collections.Generic;
+using System.Security.Cryptography;
+using System.Security.Cryptography.X509Certificates;
+using System.Threading;
+using MonoSecurity::Mono.Security.Authenticode;
+
namespace System.Net {
sealed class EndPointListener
{
IPEndPoint endpoint;
Socket sock;
- Dictionary<ListenerPrefix, HttpListener> prefixes;
- List<ListenerPrefix> unhandled; // host = '*'
- List<ListenerPrefix> all; // host = '+'
- bool secure; // Can a port have listeners for secure and not secure at the same time?
+ Hashtable prefixes; // Dictionary <ListenerPrefix, HttpListener>
+ ArrayList unhandled; // List<ListenerPrefix> unhandled; host = '*'
+ ArrayList all; // List<ListenerPrefix> all; host = '+'
+ X509Certificate2 cert;
+ AsymmetricAlgorithm key;
+ bool secure;
+ Dictionary<HttpConnection, HttpConnection> unregistered;
public EndPointListener (IPAddress addr, int port, bool secure)
{
+ if (secure) {
+ this.secure = secure;
+ LoadCertificateAndKey (addr, port);
+ }
+
endpoint = new IPEndPoint (addr, port);
sock = new Socket (addr.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
sock.Bind (endpoint);
sock.Listen (500);
- sock.BeginAccept (OnAccept, this);
- prefixes = new Dictionary<ListenerPrefix, HttpListener> ();
- this.secure = secure;
+ SocketAsyncEventArgs args = new SocketAsyncEventArgs ();
+ args.UserToken = this;
+ args.Completed += OnAccept;
+ sock.AcceptAsync (args);
+ prefixes = new Hashtable ();
+ unregistered = new Dictionary<HttpConnection, HttpConnection> ();
}
- static void OnAccept (IAsyncResult ares)
+ void LoadCertificateAndKey (IPAddress addr, int port)
{
- EndPointListener epl = (EndPointListener) ares.AsyncState;
- Socket accepted = null;
+ // Actually load the certificate
try {
- accepted = epl.sock.EndAccept (ares);
+ string dirname = Environment.GetFolderPath (Environment.SpecialFolder.ApplicationData);
+ string path = Path.Combine (dirname, ".mono");
+ path = Path.Combine (path, "httplistener");
+ string cert_file = Path.Combine (path, String.Format ("{0}.cer", port));
+ if (!File.Exists (cert_file))
+ return;
+ string pvk_file = Path.Combine (path, String.Format ("{0}.pvk", port));
+ if (!File.Exists (pvk_file))
+ return;
+ cert = new X509Certificate2 (cert_file);
+ key = PrivateKey.CreateFromFile (pvk_file).RSA;
} catch {
- // Anything to do here?
- } finally {
- epl.sock.BeginAccept (OnAccept, epl);
+ // ignore errors
}
+ }
+
+ static void OnAccept (object sender, EventArgs e)
+ {
+ SocketAsyncEventArgs args = (SocketAsyncEventArgs) e;
+ EndPointListener epl = (EndPointListener) args.UserToken;
+ Socket accepted = null;
+ if (args.SocketError == SocketError.Success) {
+ accepted = args.AcceptSocket;
+ args.AcceptSocket = null;
+ }
+
+ try {
+ if (epl.sock != null)
+ epl.sock.AcceptAsync (args);
+ } catch {
+ if (accepted != null) {
+ try {
+ accepted.Close ();
+ } catch {}
+ accepted = null;
+ }
+ }
+
+ if (accepted == null)
+ return;
- HttpConnection conn = new HttpConnection (accepted, epl, epl.secure);
+ if (epl.secure && (epl.cert == null || epl.key == null)) {
+ accepted.Close ();
+ return;
+ }
+ HttpConnection conn = new HttpConnection (accepted, epl, epl.secure, epl.cert, epl.key);
+ lock (epl.unregistered) {
+ epl.unregistered [conn] = conn;
+ }
conn.BeginReadRequest ();
}
+ internal void RemoveConnection (HttpConnection conn)
+ {
+ lock (unregistered) {
+ unregistered.Remove (conn);
+ }
+ }
+
public bool BindContext (HttpListenerContext context)
{
HttpListenerRequest req = context.Request;
ListenerPrefix prefix;
- HttpListener listener = SearchListener (req.UserHostName, req.RawUrl, out prefix);
+ HttpListener listener = SearchListener (req.Url, out prefix);
if (listener == null)
return false;
context.Listener = listener;
context.Connection.Prefix = prefix;
- listener.RegisterContext (context);
return true;
}
if (context == null || context.Request == null)
return;
- HttpListenerRequest req = context.Request;
- ListenerPrefix prefix;
- HttpListener listener = SearchListener (req.UserHostName, req.RawUrl, out prefix);
- if (listener != null)
- listener.UnregisterContext (context);
+ context.Listener.UnregisterContext (context);
}
- HttpListener SearchListener (string host, string raw_url, out ListenerPrefix prefix)
+ HttpListener SearchListener (Uri uri, out ListenerPrefix prefix)
{
prefix = null;
- if (raw_url == null)
+ if (uri == null)
return null;
- //TODO: We should use a ReaderWriterLock between this and the add/remove operations.
- if (host != null) {
- int colon = host.IndexOf (':');
- if (colon >= 0)
- host = host.Substring (0, colon);
- }
-
- string path = HttpUtility.UrlDecode (raw_url);
+ string host = uri.Host;
+ int port = uri.Port;
+ string path = HttpUtility.UrlDecode (uri.AbsolutePath);
+ string path_slash = path [path.Length - 1] == '/' ? path : path + "/";
+
HttpListener best_match = null;
int best_length = -1;
- lock (prefixes) {
- if (host != null && host != "") {
- foreach (ListenerPrefix p in prefixes.Keys) {
- string ppath = p.Path;
- if (ppath.Length < best_length)
- continue;
-
- if (p.Host == host && path.StartsWith (ppath)) {
- best_length = ppath.Length;
- best_match = prefixes [p];
- prefix = p;
- }
- }
- if (best_length != -1)
- return best_match;
- }
+ if (host != null && host != "") {
+ Hashtable p_ro = prefixes;
+ foreach (ListenerPrefix p in p_ro.Keys) {
+ string ppath = p.Path;
+ if (ppath.Length < best_length)
+ continue;
- best_match = MatchFromList (host, path, unhandled, out prefix);
- if (best_match != null)
- return best_match;
+ if (p.Host != host || p.Port != port)
+ continue;
- best_match = MatchFromList (host, path, all, out prefix);
- if (best_match != null)
+ if (path.StartsWith (ppath) || path_slash.StartsWith (ppath)) {
+ best_length = ppath.Length;
+ best_match = (HttpListener) p_ro [p];
+ prefix = p;
+ }
+ }
+ if (best_length != -1)
return best_match;
}
+
+ ArrayList list = unhandled;
+ best_match = MatchFromList (host, path, list, out prefix);
+ if (path != path_slash && best_match == null)
+ best_match = MatchFromList (host, path_slash, list, out prefix);
+ if (best_match != null)
+ return best_match;
+
+ list = all;
+ best_match = MatchFromList (host, path, list, out prefix);
+ if (path != path_slash && best_match == null)
+ best_match = MatchFromList (host, path_slash, list, out prefix);
+ if (best_match != null)
+ return best_match;
+
return null;
}
- HttpListener MatchFromList (string host, string path, List<ListenerPrefix> list, out ListenerPrefix prefix)
+ HttpListener MatchFromList (string host, string path, ArrayList list, out ListenerPrefix prefix)
{
prefix = null;
if (list == null)
return best_match;
}
- void AddSpecial (List<ListenerPrefix> coll, ListenerPrefix prefix)
+ void AddSpecial (ArrayList coll, ListenerPrefix prefix)
{
if (coll == null)
return;
if (p.Path == prefix.Path) //TODO: code
throw new HttpListenerException (400, "Prefix already in use.");
}
-
coll.Add (prefix);
}
- void RemoveSpecial (List<ListenerPrefix> coll, ListenerPrefix prefix)
+ bool RemoveSpecial (ArrayList coll, ListenerPrefix prefix)
{
if (coll == null)
- return;
+ return false;
int c = coll.Count;
for (int i = 0; i < c; i++) {
- ListenerPrefix p = coll [i];
+ ListenerPrefix p = (ListenerPrefix) coll [i];
if (p.Path == prefix.Path) {
coll.RemoveAt (i);
- CheckIfRemove ();
- return;
+ return true;
}
}
+ return false;
}
void CheckIfRemove ()
if (prefixes.Count > 0)
return;
- if (unhandled != null && unhandled.Count > 0)
+ ArrayList list = unhandled;
+ if (list != null && list.Count > 0)
return;
- if (all != null && all.Count > 0)
+ list = all;
+ if (list != null && list.Count > 0)
return;
EndPointManager.RemoveEndPoint (this, endpoint);
public void Close ()
{
sock.Close ();
+ lock (unregistered) {
+ //
+ // Clone the list because RemoveConnection can be called from Close
+ //
+ var connections = new List<HttpConnection> (unregistered.Keys);
+
+ foreach (HttpConnection c in connections)
+ c.Close (true);
+ unregistered.Clear ();
+ }
}
public void AddPrefix (ListenerPrefix prefix, HttpListener listener)
{
- lock (prefixes) {
- if (prefix.Host == "*") {
- if (unhandled == null)
- unhandled = new List<ListenerPrefix> ();
-
+ ArrayList current;
+ ArrayList future;
+ if (prefix.Host == "*") {
+ do {
+ current = unhandled;
+ future = (current != null) ? (ArrayList) current.Clone () : new ArrayList ();
prefix.Listener = listener;
- AddSpecial (unhandled, prefix);
- return;
- }
+ AddSpecial (future, prefix);
+ } while (Interlocked.CompareExchange (ref unhandled, future, current) != current);
+ return;
+ }
- if (prefix.Host == "+") {
- if (all == null)
- all = new List<ListenerPrefix> ();
+ if (prefix.Host == "+") {
+ do {
+ current = all;
+ future = (current != null) ? (ArrayList) current.Clone () : new ArrayList ();
prefix.Listener = listener;
- AddSpecial (all, prefix);
- return;
- }
+ AddSpecial (future, prefix);
+ } while (Interlocked.CompareExchange (ref all, future, current) != current);
+ return;
+ }
- if (prefixes.ContainsKey (prefix)) {
- HttpListener other = prefixes [prefix];
+ Hashtable prefs, p2;
+ do {
+ prefs = prefixes;
+ if (prefs.ContainsKey (prefix)) {
+ HttpListener other = (HttpListener) prefs [prefix];
if (other != listener) // TODO: code.
throw new HttpListenerException (400, "There's another listener for " + prefix);
return;
}
-
- prefixes [prefix] = listener;
- }
+ p2 = (Hashtable) prefs.Clone ();
+ p2 [prefix] = listener;
+ } while (Interlocked.CompareExchange (ref prefixes, p2, prefs) != prefs);
}
public void RemovePrefix (ListenerPrefix prefix, HttpListener listener)
{
- lock (prefixes) {
- if (prefix.Host == "*") {
- RemoveSpecial (unhandled, prefix);
- return;
- }
-
- if (prefix.Host == "+") {
- RemoveSpecial (all, prefix);
- return;
- }
+ ArrayList current;
+ ArrayList future;
+ if (prefix.Host == "*") {
+ do {
+ current = unhandled;
+ future = (current != null) ? (ArrayList) current.Clone () : new ArrayList ();
+ if (!RemoveSpecial (future, prefix))
+ break; // Prefix not found
+ } while (Interlocked.CompareExchange (ref unhandled, future, current) != current);
+ CheckIfRemove ();
+ return;
+ }
- if (prefixes.ContainsKey (prefix)) {
- prefixes.Remove (prefix);
- }
+ if (prefix.Host == "+") {
+ do {
+ current = all;
+ future = (current != null) ? (ArrayList) current.Clone () : new ArrayList ();
+ if (!RemoveSpecial (future, prefix))
+ break; // Prefix not found
+ } while (Interlocked.CompareExchange (ref all, future, current) != current);
+ CheckIfRemove ();
+ return;
}
+
+ Hashtable prefs, p2;
+ do {
+ prefs = prefixes;
+ if (!prefs.ContainsKey (prefix))
+ break;
+
+ p2 = (Hashtable) prefs.Clone ();
+ p2.Remove (prefix);
+ } while (Interlocked.CompareExchange (ref prefixes, p2, prefs) != prefs);
+ CheckIfRemove ();
}
}
}
projects / mono.git / blobdiff