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Posted to cvs@httpd.apache.org by yl...@apache.org on 2016/06/27 16:06:43 UTC

svn commit: r1750376 - in /httpd/httpd/trunk: CHANGES docs/log-message-tags/next-number include/ap_mmn.h modules/proxy/mod_proxy.h modules/proxy/proxy_util.c

Author: ylavic
Date: Mon Jun 27 16:06:42 2016
New Revision: 1750376

URL: http://svn.apache.org/viewvc?rev=1750376&view=rev
Log:
mod_proxy: revert r1750301, r1750305 and r1750311.
Rework needed.

Modified:
    httpd/httpd/trunk/CHANGES
    httpd/httpd/trunk/docs/log-message-tags/next-number
    httpd/httpd/trunk/include/ap_mmn.h
    httpd/httpd/trunk/modules/proxy/mod_proxy.h
    httpd/httpd/trunk/modules/proxy/proxy_util.c

Modified: httpd/httpd/trunk/CHANGES
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/CHANGES?rev=1750376&r1=1750375&r2=1750376&view=diff
==============================================================================
--- httpd/httpd/trunk/CHANGES [utf-8] (original)
+++ httpd/httpd/trunk/CHANGES [utf-8] Mon Jun 27 16:06:42 2016
@@ -1,9 +1,6 @@
                                                          -*- coding: utf-8 -*-
 Changes with Apache 2.5.0
 
-  *) mod_proxy: don't reuse backend connections with data available before the
-     request is sent.  PR 57832.  [Yann Ylavic]
-
   *) mod_sed: Fix 'x' command processing. [Christophe Jaillet]
 
   *) core: Drop an invalid Last-Modified header value coming

Modified: httpd/httpd/trunk/docs/log-message-tags/next-number
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/docs/log-message-tags/next-number?rev=1750376&r1=1750375&r2=1750376&view=diff
==============================================================================
--- httpd/httpd/trunk/docs/log-message-tags/next-number (original)
+++ httpd/httpd/trunk/docs/log-message-tags/next-number Mon Jun 27 16:06:42 2016
@@ -1 +1 @@
-3409
+3408

Modified: httpd/httpd/trunk/include/ap_mmn.h
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/include/ap_mmn.h?rev=1750376&r1=1750375&r2=1750376&view=diff
==============================================================================
--- httpd/httpd/trunk/include/ap_mmn.h (original)
+++ httpd/httpd/trunk/include/ap_mmn.h Mon Jun 27 16:06:42 2016
@@ -532,7 +532,6 @@
  *                         dav_success_proppatch.
  * 20160608.4 (2.5.0-dev)  Add dav_acl_provider, dav_acl_provider_register
  *                         dav_get_acl_providers.
- * 20160608.5 (2.5.0-dev)  Add tmp_bb to proxy_conn_rec.
  */
 
 #define MODULE_MAGIC_COOKIE 0x41503235UL /* "AP25" */
@@ -540,7 +539,7 @@
 #ifndef MODULE_MAGIC_NUMBER_MAJOR
 #define MODULE_MAGIC_NUMBER_MAJOR 20160608
 #endif
-#define MODULE_MAGIC_NUMBER_MINOR 5                 /* 0...n */
+#define MODULE_MAGIC_NUMBER_MINOR 4                 /* 0...n */
 
 /**
  * Determine if the server's current MODULE_MAGIC_NUMBER is at least a

Modified: httpd/httpd/trunk/modules/proxy/mod_proxy.h
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy.h?rev=1750376&r1=1750375&r2=1750376&view=diff
==============================================================================
--- httpd/httpd/trunk/modules/proxy/mod_proxy.h (original)
+++ httpd/httpd/trunk/modules/proxy/mod_proxy.h Mon Jun 27 16:06:42 2016
@@ -271,7 +271,6 @@ typedef struct {
     unsigned int inreslist:1;  /* connection in apr_reslist? */
     const char   *uds_path;    /* Unix domain socket path */
     const char   *ssl_hostname;/* Hostname (SNI) in use by SSL connection */
-    apr_bucket_brigade *tmp_bb;
 } proxy_conn_rec;
 
 typedef struct {

Modified: httpd/httpd/trunk/modules/proxy/proxy_util.c
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/proxy_util.c?rev=1750376&r1=1750375&r2=1750376&view=diff
==============================================================================
--- httpd/httpd/trunk/modules/proxy/proxy_util.c (original)
+++ httpd/httpd/trunk/modules/proxy/proxy_util.c Mon Jun 27 16:06:42 2016
@@ -2487,7 +2487,7 @@ ap_proxy_determine_connection(apr_pool_t
 #endif
 
 #if USE_ALTERNATE_IS_CONNECTED && defined(APR_MSG_PEEK)
-static int get_socket_connected(apr_socket_t *socket)
+PROXY_DECLARE(int) ap_proxy_is_socket_connected(apr_socket_t *socket)
 {
     apr_pollfd_t pfds[1];
     apr_status_t status;
@@ -2514,7 +2514,7 @@ static int get_socket_connected(apr_sock
         status = apr_socket_recvfrom(&unused, socket, APR_MSG_PEEK,
                                      &buf[0], &len);
         if (status == APR_SUCCESS && len)
-            return 2;
+            return 1;
         else
             return 0;
     }
@@ -2525,7 +2525,8 @@ static int get_socket_connected(apr_sock
 
 }
 #else
-static int get_socket_connnected(apr_socket_t *socket)
+PROXY_DECLARE(int) ap_proxy_is_socket_connected(apr_socket_t *socket)
+
 {
     apr_size_t buffer_len = 1;
     char test_buffer[1];
@@ -2543,19 +2544,12 @@ static int get_socket_connnected(apr_soc
         || APR_STATUS_IS_ECONNRESET(socket_status)) {
         return 0;
     }
-    else if (status == APR_SUCCESS && buffer_len) {
-        return 2;
-    }
     else {
         return 1;
     }
 }
 #endif /* USE_ALTERNATE_IS_CONNECTED */
 
-PROXY_DECLARE(int) ap_proxy_is_socket_connected(apr_socket_t *socket)
-{
-    return get_socket_connected(socket) != 0;
-}
 
 /*
  * Send a HTTP CONNECT request to a forward proxy.
@@ -2722,35 +2716,7 @@ PROXY_DECLARE(int) ap_proxy_connect_back
         (proxy_server_conf *) ap_get_module_config(sconf, &proxy_module);
 
     if (conn->sock) {
-        conn_rec *c = conn->connection;
-        if (!c) {
-            connected = get_socket_connected(conn->sock);
-        }
-        else {
-            if (conn->tmp_bb == NULL) {
-                conn->tmp_bb = apr_brigade_create(c->pool, c->bucket_alloc);
-            }
-            rv = ap_get_brigade(c->input_filters, conn->tmp_bb,
-                                AP_MODE_SPECULATIVE, APR_NONBLOCK_READ, 1);
-            if (rv == APR_SUCCESS) {
-                apr_off_t len = 0;
-                apr_brigade_length(conn->tmp_bb, 0, &len);
-                if (len) {
-                    connected = 2;
-                }
-                else {
-                    connected = 1;
-                }
-            }
-            else if (APR_STATUS_IS_EAGAIN(rv)) {
-                connected = 1;
-            }
-            else {
-                connected = 0;
-            }
-            apr_brigade_cleanup(conn->tmp_bb);
-        }
-        if (connected != 1) {
+        if (!(connected = ap_proxy_is_socket_connected(conn->sock))) {
             /* This clears conn->scpool (and associated data), so backup and
              * restore any ssl_hostname for this connection set earlier by
              * ap_proxy_determine_connection().
@@ -2762,17 +2728,9 @@ PROXY_DECLARE(int) ap_proxy_connect_back
             }
 
             socket_cleanup(conn);
-            if (!connected) {
-                ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(00951)
-                             "%s: backend socket is disconnected.",
-                             proxy_function);
-            }
-            else {
-                ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(03408)
-                             "%s: reusable backend connection is not empty: "
-                             "forcibly closed", proxy_function);
-                connected = 0;
-            }
+            ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(00951)
+                         "%s: backend socket is disconnected.",
+                         proxy_function);
 
             if (ssl_hostname[0]) {
                 conn->ssl_hostname = apr_pstrdup(conn->scpool, ssl_hostname);