bugfix: the keepalive feature is hindered

Author: tokers

lib/resty/requests/adapter.lua

@@ -61,7 +61,7 @@ end
 
 
 local function parse_status_line(status_line)
-    local m, err = ngx_match(status_line, "HTTP/(.+?)\\s.*?(\\d+).*", "jo")
+    local m, err = ngx_match(status_line, "(HTTP/.+?)\\s.*?(\\d+).*", "jo")
     if not m then
         return nil, err
     end

lib/resty/requests/response.lua

@@ -221,8 +221,13 @@ local function new(opts)
         end
     end
 
+    local http_ver = r._http_ver
     local connection = r.headers["connection"]
-    if connection == "keep-alive" or r._http_ver == HTTP20 then
+
+    if connection == "keep-alive"
+       or (not connection and http_ver == HTTP11) -- HTTP/1.1 default behavior
+       or http_ver == HTTP20
+    then
         r._keepalive = true
     end