--- a/web/wp-includes/class-http.php	Wed Dec 19 12:35:13 2012 -0800
+++ b/web/wp-includes/class-http.php	Wed Dec 19 17:46:52 2012 -0800
@@ -169,21 +169,17 @@
 		if ( WP_Http_Encoding::is_available() )
 			$r['headers']['Accept-Encoding'] = WP_Http_Encoding::accept_encoding();
 
-		if ( empty($r['body']) ) {
-			$r['body'] = null;
-			// Some servers fail when sending content without the content-length header being set.
-			// Also, to fix another bug, we only send when doing POST and PUT and the content-length
-			// header isn't already set.
-			if ( ($r['method'] == 'POST' || $r['method'] == 'PUT') && ! isset( $r['headers']['Content-Length'] ) )
-				$r['headers']['Content-Length'] = 0;
-		} else {
+		if ( ( ! is_null( $r['body'] ) && '' != $r['body'] ) || 'POST' == $r['method'] || 'PUT' == $r['method'] ) {
 			if ( is_array( $r['body'] ) || is_object( $r['body'] ) ) {
 				$r['body'] = http_build_query( $r['body'], null, '&' );
+
 				if ( ! isset( $r['headers']['Content-Type'] ) )
 					$r['headers']['Content-Type'] = 'application/x-www-form-urlencoded; charset=' . get_option( 'blog_charset' );
-				$r['headers']['Content-Length'] = strlen( $r['body'] );
 			}
 
+			if ( '' === $r['body'] )
+				$r['body'] = null;
+
 			if ( ! isset( $r['headers']['Content-Length'] ) && ! isset( $r['headers']['content-length'] ) )
 				$r['headers']['Content-Length'] = strlen( $r['body'] );
 		}
@@ -200,7 +196,7 @@
 	 * @param array $args Request arguments
 	 * @param string $url URL to Request
 	 *
-	 * @return string|false Class name for the first transport that claims to support the request. False if no transport claims to support the request.
+	 * @return string|bool Class name for the first transport that claims to support the request. False if no transport claims to support the request.
 	 */
 	public function _get_first_available_transport( $args, $url = null ) {
 		$request_order = array( 'curl', 'streams', 'fsockopen' );
@@ -382,18 +378,18 @@
 
 			list($key, $value) = explode(':', $tempheader, 2);
 
-			if ( !empty( $value ) ) {
-				$key = strtolower( $key );
-				if ( isset( $newheaders[$key] ) ) {
-					if ( !is_array($newheaders[$key]) )
-						$newheaders[$key] = array($newheaders[$key]);
-					$newheaders[$key][] = trim( $value );
-				} else {
-					$newheaders[$key] = trim( $value );
-				}
-				if ( 'set-cookie' == $key )
-					$cookies[] = new WP_Http_Cookie( $value );
+			$key = strtolower( $key );
+			$value = trim( $value );
+
+			if ( isset( $newheaders[ $key ] ) ) {
+				if ( ! is_array( $newheaders[ $key ] ) )
+					$newheaders[$key] = array( $newheaders[ $key ] );
+				$newheaders[ $key ][] = $value;
+			} else {
+				$newheaders[ $key ] = $value;
 			}
+			if ( 'set-cookie' == $key )
+				$cookies[] = new WP_Http_Cookie( $value );
 		}
 
 		return array('response' => $response, 'headers' => $newheaders, 'cookies' => $cookies);
@@ -429,6 +425,8 @@
 	 * Based off the HTTP http_encoding_dechunk function. Does not support UTF-8. Does not support
 	 * returning footer headers. Shouldn't be too difficult to support it though.
 	 *
+	 * @link http://tools.ietf.org/html/rfc2616#section-19.4.6 Process for chunked decoding.
+	 *
 	 * @todo Add support for footer chunked headers.
 	 * @access public
 	 * @since 2.7.0
@@ -806,7 +804,7 @@
 		if ( ! function_exists( 'fsockopen' ) )
 			return false;
 
-		if ( false !== ($option = get_option( 'disable_fsockopen' )) && time()-$option < 43200 ) // 12 hours
+		if ( false !== ( $option = get_option( 'disable_fsockopen' ) ) && time() - $option < 12 * HOUR_IN_SECONDS )
 			return false;
 
 		$is_ssl = isset( $args['ssl'] ) && $args['ssl'];
@@ -912,7 +910,7 @@
 				$arrContext['http']['header'] .= $proxy->authentication_header() . "\r\n";
 		}
 
-		if ( ! empty($r['body'] ) )
+		if ( ! is_null( $r['body'] ) )
 			$arrContext['http']['content'] = $r['body'];
 
 		$context = stream_context_create($arrContext);
@@ -1105,13 +1103,13 @@
 				break;
 			default:
 				curl_setopt( $handle, CURLOPT_CUSTOMREQUEST, $r['method'] );
-				if ( ! empty( $r['body'] ) )
+				if ( ! is_null( $r['body'] ) )
 					curl_setopt( $handle, CURLOPT_POSTFIELDS, $r['body'] );
 				break;
 		}
 
 		if ( true === $r['blocking'] )
-			curl_setopt( $handle, CURLOPT_HEADERFUNCTION, array( &$this, 'stream_headers' ) );
+			curl_setopt( $handle, CURLOPT_HEADERFUNCTION, array( $this, 'stream_headers' ) );
 
 		curl_setopt( $handle, CURLOPT_HEADER, false );
 
@@ -1392,6 +1390,10 @@
 
 		$home = parse_url( get_option('siteurl') );
 
+		$result = apply_filters( 'pre_http_send_through_proxy', null, $uri, $check, $home );
+		if ( ! is_null( $result ) )
+			return $result;
+
 		if ( $check['host'] == 'localhost' || $check['host'] == $home['host'] )
 			return false;
 
@@ -1546,7 +1548,7 @@
 	 */
 	function test( $url ) {
 		// Expires - if expired then nothing else matters
-		if ( time() > $this->expires )
+		if ( isset( $this->expires ) && time() > $this->expires )
 			return false;
 
 		// Get details on the URL we're thinking about sending to
@@ -1586,7 +1588,7 @@
 	 * @return string Header encoded cookie name and value.
 	 */
 	function getHeaderValue() {
-		if ( empty( $this->name ) || empty( $this->value ) )
+		if ( ! isset( $this->name ) || ! isset( $this->value ) )
 			return '';
 
 		return $this->name . '=' . apply_filters( 'wp_http_cookie_value', $this->value, $this->name );
@@ -1673,7 +1675,7 @@
 	/**
 	 * Decompression of deflated string while staying compatible with the majority of servers.
 	 *
-	 * Certain Servers will return deflated data with headers which PHP's gziniflate()
+	 * Certain Servers will return deflated data with headers which PHP's gzinflate()
 	 * function cannot handle out of the box. The following function has been created from
 	 * various snippets on the gzinflate() PHP documentation.
 	 *