# HG changeset patch
# User jbe
# Date 1434755286 -7200
# Node ID 6927f8897f7154507680c95abc79bd6e7a711b0a
# Parent  efd1b4cfd2e9a85fe4391709b2fc5f951b937538
Avoid hang-up on empty/nonexistent body in moonbridge_http.lua

diff -r efd1b4cfd2e9 -r 6927f8897f71 moonbridge_http.lua
--- a/moonbridge_http.lua	Sat Jun 20 00:46:19 2015 +0200
+++ b/moonbridge_http.lua	Sat Jun 20 01:08:06 2015 +0200
@@ -502,6 +502,7 @@
       -- coroutine for request body processing:
       local function read_body()
         if request.headers_flags["Transfer-Encoding"]["chunked"] then
+          coroutine.yield()  -- do not read on first invocation
           local limit = body_size_limit
           while true do
             local line = read(32 + limit, "\n")
@@ -536,6 +537,7 @@
             end
           end
         elseif request_body_content_length then
+          coroutine.yield()  -- do not read on first invocation
           read_body_bytes(request_body_content_length)
         end
         if process_body_chunk then
@@ -723,6 +725,7 @@
           return
         end
         consume = coroutine.wrap(read_body)
+        consume()  -- call coroutine once to avoid hangup on empty body
         state = "no_status_sent"
         if request.headers_flags["Expect"]["100-continue"] then
           request:send_status("100 Continue")