Add support for distributed caching of SSL Sessions inside memcached, using apr_memcache, which is present in APR-Util 1.3/trunk.

This was originally written at ApacheCon US 2005 (San Diego), and was sent to the list:
http://mail-archives.apache.org/mod_mbox/httpd-dev/200512.mbox/%3C439C6C07.9030904@force-elite.com%3E

This version is slightly cleaned up, and of course, uses the now bundled apr_memcache, rather than an external dependency.



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@545379 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 24 insertions, 0 deletions

diff --git a/modules/ssl/ssl_scache.c b/modules/ssl/ssl_scache.c
index c85e4f19cc..e01e1d1bed 100644
--- a/modules/ssl/ssl_scache.c
+++ b/modules/ssl/ssl_scache.c
@@ -59,6 +59,10 @@ void ssl_scache_init(server_rec *s, apr_pool_t *p)
     else if (mc->nSessionCacheMode == SSL_SCMODE_DC)
         ssl_scache_dc_init(s, p);
 #endif
+#ifdef HAVE_SSL_CACHE_MEMCACHE
+    else if (mc->nSessionCacheMode == SSL_SCMODE_MC)
+        ssl_scache_mc_init(s, p);
+#endif
     else if (mc->nSessionCacheMode == SSL_SCMODE_SHMCB) {
         void *data;
         const char *userdata_key = "ssl_scache_init";
@@ -85,6 +89,10 @@ void ssl_scache_kill(server_rec *s)
     else if (mc->nSessionCacheMode == SSL_SCMODE_DC)
         ssl_scache_dc_kill(s);
 #endif
+#ifdef HAVE_SSL_CACHE_MEMCACHE
+    else if (mc->nSessionCacheMode == SSL_SCMODE_MC)
+        ssl_scache_mc_kill(s);
+#endif
     return;
 }
 
@@ -101,6 +109,10 @@ BOOL ssl_scache_store(server_rec *s, UCHAR *id, int idlen, time_t expiry, SSL_SE
     else if (mc->nSessionCacheMode == SSL_SCMODE_DC)
         rv = ssl_scache_dc_store(s, id, idlen, expiry, sess);
 #endif
+#ifdef HAVE_SSL_CACHE_MEMCACHE
+    else if (mc->nSessionCacheMode == SSL_SCMODE_MC)
+        rv = ssl_scache_mc_store(s, id, idlen, expiry, sess);
+#endif
     return rv;
 }
 
@@ -117,6 +129,10 @@ SSL_SESSION *ssl_scache_retrieve(server_rec *s, UCHAR *id, int idlen)
     else if (mc->nSessionCacheMode == SSL_SCMODE_DC)
         sess = ssl_scache_dc_retrieve(s, id, idlen);
 #endif
+#ifdef HAVE_SSL_CACHE_MEMCACHE
+    else if (mc->nSessionCacheMode == SSL_SCMODE_MC)
+        sess = ssl_scache_mc_retrieve(s, id, idlen);
+#endif
     return sess;
 }
 
@@ -132,6 +148,10 @@ void ssl_scache_remove(server_rec *s, UCHAR *id, int idlen)
     else if (mc->nSessionCacheMode == SSL_SCMODE_DC)
         ssl_scache_dc_remove(s, id, idlen);
 #endif
+#ifdef HAVE_SSL_CACHE_MEMCACHE
+    else if (mc->nSessionCacheMode == SSL_SCMODE_MC)
+        ssl_scache_mc_remove(s, id, idlen);
+#endif
     return;
 }
 
@@ -162,6 +182,10 @@ static int ssl_ext_status_hook(request_rec *r, int flags)
     else if (sc->mc->nSessionCacheMode == SSL_SCMODE_DC)
         ssl_scache_dc_status(r, flags, r->pool);
 #endif
+#ifdef HAVE_SSL_CACHE_MEMCACHE
+    else if (sc->mc->nSessionCacheMode == SSL_SCMODE_MC)
+        ssl_scache_mc_status(r, flags, r->pool);
+#endif
 
     ap_rputs("</td></tr>\n", r);
     ap_rputs("</table>\n", r);