Adds trunk/talk folder of revision 359 from libjingles google code to

trunk/talk


git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d

talk/examples/peerconnection/server/data_socket.h

@@ -0,0 +1,168 @@
+/*
+ * libjingle
+ * Copyright 2011, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TALK_EXAMPLES_PEERCONNECTION_SERVER_DATA_SOCKET_H_
+#define TALK_EXAMPLES_PEERCONNECTION_SERVER_DATA_SOCKET_H_
+#pragma once
+
+#ifdef WIN32
+#include <winsock2.h>
+typedef int socklen_t;
+#else
+#include <netinet/in.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#define closesocket close
+#endif
+
+#include <string>
+
+#ifndef SOCKET_ERROR
+#define SOCKET_ERROR (-1)
+#endif
+
+#ifndef INVALID_SOCKET
+#define INVALID_SOCKET  static_cast<int>(~0)
+#endif
+
+class SocketBase {
+ public:
+  SocketBase() : socket_(INVALID_SOCKET) { }
+  explicit SocketBase(int socket) : socket_(socket) { }
+  ~SocketBase() { Close(); }
+
+  int socket() const { return socket_; }
+  bool valid() const { return socket_ != INVALID_SOCKET; }
+
+  bool Create();
+  void Close();
+
+ protected:
+  int socket_;
+};
+
+// Represents an HTTP server socket.
+class DataSocket : public SocketBase {
+ public:
+  enum RequestMethod {
+    INVALID,
+    GET,
+    POST,
+    OPTIONS,
+  };
+
+  explicit DataSocket(int socket)
+      : SocketBase(socket),
+        method_(INVALID),
+        content_length_(0) {
+  }
+
+  ~DataSocket() {
+  }
+
+  static const char kCrossOriginAllowHeaders[];
+
+  bool headers_received() const { return method_ != INVALID; }
+
+  RequestMethod method() const { return method_; }
+
+  const std::string& request_path() const { return request_path_; }
+  std::string request_arguments() const;
+
+  const std::string& data() const { return data_; }
+
+  const std::string& content_type() const { return content_type_; }
+
+  size_t content_length() const { return content_length_; }
+
+  bool request_received() const {
+    return headers_received() && (method_ != POST || data_received());
+  }
+
+  bool data_received() const {
+    return method_ != POST || data_.length() >= content_length_;
+  }
+
+  // Checks if the request path (minus arguments) matches a given path.
+  bool PathEquals(const char* path) const;
+
+  // Called when we have received some data from clients.
+  // Returns false if an error occurred.
+  bool OnDataAvailable(bool* close_socket);
+
+  // Send a raw buffer of bytes.
+  bool Send(const std::string& data) const;
+
+  // Send an HTTP response.  The |status| should start with a valid HTTP
+  // response code, followed by a string.  E.g. "200 OK".
+  // If |connection_close| is set to true, an extra "Connection: close" HTTP
+  // header will be included.  |content_type| is the mime content type, not
+  // including the "Content-Type: " string.
+  // |extra_headers| should be either empty or a list of headers where each
+  // header terminates with "\r\n".
+  // |data| is the body of the message.  It's length will be specified via
+  // a "Content-Length" header.
+  bool Send(const std::string& status, bool connection_close,
+            const std::string& content_type,
+            const std::string& extra_headers, const std::string& data) const;
+
+  // Clears all held state and prepares the socket for receiving a new request.
+  void Clear();
+
+ protected:
+  // A fairly relaxed HTTP header parser.  Parses the method, path and
+  // content length (POST only) of a request.
+  // Returns true if a valid request was received and no errors occurred.
+  bool ParseHeaders();
+
+  // Figures out whether the request is a GET or POST and what path is
+  // being requested.
+  bool ParseMethodAndPath(const char* begin, size_t len);
+
+  // Determines the length of the body and it's mime type.
+  bool ParseContentLengthAndType(const char* headers, size_t length);
+
+ protected:
+  RequestMethod method_;
+  size_t content_length_;
+  std::string content_type_;
+  std::string request_path_;
+  std::string request_headers_;
+  std::string data_;
+};
+
+// The server socket.  Accepts connections and generates DataSocket instances
+// for each new connection.
+class ListeningSocket : public SocketBase {
+ public:
+  ListeningSocket() {}
+
+  bool Listen(unsigned short port);
+  DataSocket* Accept() const;
+};
+
+#endif  // TALK_EXAMPLES_PEERCONNECTION_SERVER_DATA_SOCKET_H_