deal with requests with zero Content-Length

1 files changed, 5 insertions, 2 deletions

diff --git a/server.lua b/server.lua
index 9fe4f5e..6be07da 100644
--- a/server.lua
+++ b/server.lua
@@ -40,11 +40,14 @@ return function(env)
 	  end
 
 	  local data
-	  if env.CONTENT_LENGTH then
+	  local length = env.CONTENT_LENGTH and tonumber(
+	     env.CONTENT_LENGTH
+	  ) or 0
+	  if length > 0 then
 	     local success
 	     success, data = pcall(
 		json.decode,
-		env.input:read(env.CONTENT_LENGTH)
+		env.input:read(length)
 	     )
 	     if not success then
 		return wrap(400, nil, 'Request not in JSON format')