bugfix: we lacked detailed context info in error messages due to use of disabled Lua APIs in body_filter_by_lua*. thanks Dejiang Zhu for the patch in openresty#623.

Author: agentzh

src/ngx_http_lua_util.h

@@ -82,6 +82,7 @@ extern char ngx_http_lua_headers_metatable_key;
      : (c) == NGX_HTTP_LUA_CONTEXT_CONTENT ? "content_by_lua*"               \
      : (c) == NGX_HTTP_LUA_CONTEXT_LOG ? "log_by_lua*"                       \
      : (c) == NGX_HTTP_LUA_CONTEXT_HEADER_FILTER ? "header_filter_by_lua*"   \
+     : (c) == NGX_HTTP_LUA_CONTEXT_BODY_FILTER ? "body_filter_by_lua*"       \
      : (c) == NGX_HTTP_LUA_CONTEXT_TIMER ? "ngx.timer"                       \
      : (c) == NGX_HTTP_LUA_CONTEXT_INIT_WORKER ? "init_worker_by_lua*"       \
      : "(unknown)")

t/082-body-filter.t

@@ -10,7 +10,7 @@ log_level('debug');
 
 repeat_each(2);
 
-plan tests => repeat_each() * (blocks() * 3 + 13);
+plan tests => repeat_each() * (blocks() * 3 + 11);
 
 #no_diff();
 no_long_string();
@@ -824,3 +824,16 @@ eof 2: true
 [error]
 [alert]
 
+
+
+=== TEST 26: no ngx.print
+--- config
+    location /lua {
+        echo ok;
+        body_filter_by_lua "ngx.print(32) return 1";
+    }
+--- request
+GET /lua
+--- ignore_response
+--- error_log
+API disabled in the context of body_filter_by_lua*