ssl_certificate_by_lua server_port

ssl_server_port.patch

diff -ruN openresty-1.13.6.2/bundle/lua-resty-core-0.1.15/lib/ngx/ssl.lua openresty-1.13.6.2-patched/bundle/lua-resty-core-0.1.15/lib/ngx/ssl.lua
--- openresty-1.13.6.2/bundle/lua-resty-core-0.1.15/lib/ngx/ssl.lua	2018-04-23 02:47:22.000000000 +0800
+++ openresty-1.13.6.2-patched/bundle/lua-resty-core-0.1.15/lib/ngx/ssl.lua	2019-02-28 16:13:56.422720600 +0800
@@ -38,6 +38,9 @@
 int ngx_http_lua_ffi_ssl_server_name(ngx_http_request_t *r, char **name,
     size_t *namelen, char **err);
 
+int ngx_http_lua_ffi_ssl_server_port(ngx_http_request_t *r,
+    int *port, char **err);
+
 int ngx_http_lua_ffi_ssl_raw_client_addr(ngx_http_request_t *r, char **addr,
     size_t *addrlen, int *addrtype, char **err);
 
@@ -162,6 +165,25 @@
     end
 
     if rc == FFI_DECLINED then
+        return nil
+    end
+
+    return nil, ffi_str(errmsg[0])
+end
+
+
+function _M.server_port()
+    local r = getfenv(0).__ngx_req
+    if not r then
+        error("no request found")
+    end
+
+    local rc = C.ngx_http_lua_ffi_ssl_server_port(r, intp, errmsg)
+    if rc == FFI_OK then
+        return intp[0]
+    end
+
+    if rc == FFI_DECLINED then
         return nil
     end
 
diff -ruN openresty-1.13.6.2/bundle/ngx_lua-0.10.13/src/ngx_http_lua_ssl_certby.c openresty-1.13.6.2-patched/bundle/ngx_lua-0.10.13/src/ngx_http_lua_ssl_certby.c
--- openresty-1.13.6.2/bundle/ngx_lua-0.10.13/src/ngx_http_lua_ssl_certby.c	2018-04-23 02:41:56.000000000 +0800
+++ openresty-1.13.6.2-patched/bundle/ngx_lua-0.10.13/src/ngx_http_lua_ssl_certby.c	2019-02-28 16:34:09.310299735 +0800
@@ -880,6 +880,39 @@
 
 
 int
+ngx_http_lua_ffi_ssl_server_port(ngx_http_request_t *r,
+    int *port, char **err)
+{
+    ngx_ssl_conn_t       *ssl_conn;
+    ngx_connection_t     *c;
+    int                  p;
+    if (r->connection == NULL || r->connection->ssl == NULL) {
+        *err = "bad request";
+        return NGX_ERROR;
+    }
+    ssl_conn = r->connection->ssl->connection;
+    if (ssl_conn == NULL) {
+        *err = "bad ssl conn";
+        return NGX_ERROR;
+    }
+
+    c = ngx_ssl_get_connection(ssl_conn);
+
+    if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) {
+        return 0;
+    }
+
+    p = ngx_inet_get_port(c->local_sockaddr);
+
+    if (p > 0 && p < 65536) {
+        *port = p;
+    }
+
+    return NGX_OK;
+}
+
+
+int
 ngx_http_lua_ffi_ssl_raw_client_addr(ngx_http_request_t *r, char **addr,
     size_t *addrlen, int *addrtype, char **err)
 {