Update auf Nginx 1.13.4

src/http/ngx_http_upstream.c

@@ -182,7 +182,9 @@ static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf);
 #if (NGX_HTTP_SSL)
 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *,
     ngx_http_upstream_t *u, ngx_connection_t *c);
-static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c);
+static void ngx_http_upstream_ssl_handshake_handler(ngx_connection_t *c);
+static void ngx_http_upstream_ssl_handshake(ngx_http_request_t *,
+    ngx_http_upstream_t *u, ngx_connection_t *c);
 static ngx_int_t ngx_http_upstream_ssl_name(ngx_http_request_t *r,
     ngx_http_upstream_t *u, ngx_connection_t *c);
 #endif
@@ -425,7 +427,7 @@ static ngx_http_variable_t  ngx_http_upstream_vars[] = {
     { ngx_string("upstream_cookie_"), NULL, ngx_http_upstream_cookie_variable,
       0, NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_PREFIX, 0 },
 
-    { ngx_null_string, NULL, NULL, 0, 0, 0 }
+      ngx_http_null_variable
 };
 
 
@@ -1075,6 +1077,10 @@ ngx_http_upstream_cache_background_update(ngx_http_request_t *r,
         return NGX_OK;
     }
 
+    if (r == r->main) {
+        r->preserve_body = 1;
+    }
+
     if (ngx_http_subrequest(r, &r->uri, &r->args, &sr, NULL,
                             NGX_HTTP_SUBREQUEST_CLONE
                             |NGX_HTTP_SUBREQUEST_BACKGROUND)
@@ -1143,11 +1149,14 @@ ngx_http_upstream_cache_check_range(ngx_http_request_t *r,
 static void
 ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx)
 {
+    ngx_uint_t                     run_posted;
     ngx_connection_t              *c;
     ngx_http_request_t            *r;
     ngx_http_upstream_t           *u;
     ngx_http_upstream_resolved_t  *ur;
 
+    run_posted = ctx->async;
+
     r = ctx->data;
     c = r->connection;
 
@@ -1211,7 +1220,9 @@ ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx)
 
 failed:
 
-    ngx_http_run_posted_requests(c);
+    if (run_posted) {
+        ngx_http_run_posted_requests(c);
+    }
 }
 
 
@@ -1662,26 +1673,43 @@ ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r,
             ngx_add_timer(c->write, u->conf->connect_timeout);
         }
 
-        c->ssl->handler = ngx_http_upstream_ssl_handshake;
+        c->ssl->handler = ngx_http_upstream_ssl_handshake_handler;
         return;
     }
 
-    ngx_http_upstream_ssl_handshake(c);
+    ngx_http_upstream_ssl_handshake(r, u, c);
 }
 
 
 static void
-ngx_http_upstream_ssl_handshake(ngx_connection_t *c)
+ngx_http_upstream_ssl_handshake_handler(ngx_connection_t *c)
 {
-    long                  rc;
     ngx_http_request_t   *r;
     ngx_http_upstream_t  *u;
 
     r = c->data;
+
     u = r->upstream;
+    c = r->connection;
 
     ngx_http_set_log_request(c->log, r);
 
+    ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
+                   "http upstream ssl handshake: \"%V?%V\"",
+                   &r->uri, &r->args);
+
+    ngx_http_upstream_ssl_handshake(r, u, u->peer.connection);
+
+    ngx_http_run_posted_requests(c);
+}
+
+
+static void
+ngx_http_upstream_ssl_handshake(ngx_http_request_t *r, ngx_http_upstream_t *u,
+    ngx_connection_t *c)
+{
+    long  rc;
+
     if (c->ssl->handshaked) {
 
         if (u->conf->ssl_verify) {
@@ -1709,28 +1737,19 @@ ngx_http_upstream_ssl_handshake(ngx_connection_t *c)
         c->write->handler = ngx_http_upstream_handler;
         c->read->handler = ngx_http_upstream_handler;
 
-        c = r->connection;
-
         ngx_http_upstream_send_request(r, u, 1);
 
-        ngx_http_run_posted_requests(c);
         return;
     }
 
     if (c->write->timedout) {
-        c = r->connection;
         ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
-        ngx_http_run_posted_requests(c);
         return;
     }
 
 failed:
 
-    c = r->connection;
-
     ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
-
-    ngx_http_run_posted_requests(c);
 }
 
 
@@ -2729,7 +2748,7 @@ ngx_http_upstream_process_body_in_memory(ngx_http_request_t *r,
     rev = c->read;
 
     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
-                   "http upstream process body on memory");
+                   "http upstream process body in memory");
 
     if (rev->timedout) {
         ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
@@ -2842,7 +2861,9 @@ ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
         u->pipe->downstream_error = 1;
     }
 
-    if (r->request_body && r->request_body->temp_file) {
+    if (r->request_body && r->request_body->temp_file
+        && r == r->main && !r->preserve_body)
+    {
         ngx_pool_run_cleanup_file(r->pool, r->request_body->temp_file->file.fd);
         r->request_body->temp_file->file.fd = NGX_INVALID_FILE;
     }
@@ -4488,7 +4509,7 @@ ngx_http_upstream_process_cache_control(ngx_http_request_t *r,
             }
 
             if (*p >= '0' && *p <= '9') {
-                n = n * 10 + *p - '0';
+                n = n * 10 + (*p - '0');
                 continue;
             }
 
@@ -4516,7 +4537,7 @@ ngx_http_upstream_process_cache_control(ngx_http_request_t *r,
             }
 
             if (*p >= '0' && *p <= '9') {
-                n = n * 10 + *p - '0';
+                n = n * 10 + (*p - '0');
                 continue;
             }
 
@@ -4539,7 +4560,7 @@ ngx_http_upstream_process_cache_control(ngx_http_request_t *r,
             }
 
             if (*p >= '0' && *p <= '9') {
-                n = n * 10 + *p - '0';
+                n = n * 10 + (*p - '0');
                 continue;
             }