Add HTTP/1.0 support and simplify persistent connections handling

runtime/bin/http.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * HTTP status codes.
  */
 interface HttpStatus {
   static final int CONTINUE = 100;
   static final int SWITCHING_PROTOCOLS = 101;
@@ skipping 92 matching lines @@
  * Http request delivered to the HTTP server callback.
  */
 interface HttpRequest default _HttpRequest {
   /**
    * Returns the content length of the request body. If the size of
    * the request body is not known in advance this -1.
    */
   int get contentLength();
 
   /**
-   * Returns the keep alive state of the connection.
-   */
-  bool get keepAlive();
-
-  /**
    * Returns the method for the request.
    */
   String get method();
 
   /**
    * Returns the URI for the request.
    */
   String get uri();
 
   /**
@@ skipping 29 matching lines @@
  */
 interface HttpResponse default _HttpResponse {
   /**
    * Gets and sets the content length of the response. If the size of
    * the response is not known in advance set the content length to
    * -1 - which is also the default if not set.
    */
   int contentLength;
 
   /**
-   * Gets and sets the keep alive state of the connection. If the
-   * associated request have a keep alive state of false setting keep
-   * alive to true will have no effect.
-   */
-  bool keepAlive;
-
-  /**
    * Gets and sets the status code. Any integer value is accepted, but
    * for the official HTTP status codes use the fields from
    * [HttpStatus].
    */
   int statusCode;
 
   /**
    * Gets and sets the reason phrase. If no reason phrase is explicitly
    * set a default reason phrase is provided.
    */
@@ skipping 124 matching lines @@
  */
 interface HttpClientRequest default _HttpClientRequest {
   /**
    * Gets and sets the content length of the request. If the size of
    * the request is not known in advance set content length to -1,
    * which is also the default.
    */
   int contentLength;
 
   /**
-   * Gets and sets the keep alive state of the connection.
-   */
-  bool keepAlive;
-
-  /**
    * Gets and sets the " host part of the "Host" header for the
    * connection. By default this will be set to the value of the host
    * used when initiating the connection.
    */
   String host;
 
   /**
    * Gets and sets the port part of the "Host" header for the
    * connection. By default this will be set to the value of the port
    * used when initiating the connection.
@@ skipping 39 matching lines @@
    */
   String get reasonPhrase();
 
   /**
    * Returns the content length of the request body. If the size of
    * the request body is not known in advance this -1.
    */
   int get contentLength();
 
   /**
-   * Returns the keep alive state of the connection.
-   */
-  bool get keepAlive();
-
-  /**
    * Returns the date value for the "Expires" header. Returns null if
    * the response has no "Expires" header. Throws a HttpException if
    * the response has an "Expires" header which is not formatted as a
    * valid HTTP date.
    */
   Date get expires();
 
   /**
    * Returns the response headers.
    */
   Map<String, String> get headers();
 
   /**
    * Returns the input stream for the response. This is used to read
    * the response data.
    */
   InputStream get inputStream();
 }
 
 
 class HttpException implements Exception {
   const HttpException([String this.message = ""]);
   String toString() => "HttpException: $message";
   final String message;
 }