fix exit status issue

scripts/wx_download.lua

@@ -10,7 +10,6 @@ local function get_access_token()
     local host = ngx.var.host
     local wx_domain = ngx.var.wx_domain
 
-    ngx.log(ngx.INFO, "Request URL -> ", ngx.var.uri)
     ngx.log(ngx.INFO, "HTYUC -> ", htyuc)
     ngx.log(ngx.INFO, "Host -> ", host)
     ngx.log(ngx.INFO, 'HtyHostHeader -> ', htyhostHeader)
@@ -36,6 +35,7 @@ local function get_access_token()
     if no_exception == true then
         if 200 ~= resp.status then
             ngx.log(ngx.ERR, "GET ACCESS TOKEN *FAILED*", pl.write(resp_err))
+            ngx.status = resp.status
             ngx.say(pl.write(resp_err))
             ngx.exit(resp.status)
         else
@@ -47,7 +47,10 @@ local function get_access_token()
             resp = ""
         end
         ngx.log(ngx.ERR, "FAILED TO CONNECT TO *HTYUC*: httpc throws runtime error, please check HTYUC log. / ", pl.write(resp))
-        ngx.say(pl.write(resp))
+        -- 必须先设置ngx.status，否则ngx.say之后就直接被设置为200了，不会再被exit设为401
+        -- https://github.com/openresty/lua-resty-redis/issues/15
+        ngx.status = 401
+        ngx.say(cjson.encode({r = false, d = "HtySudoerTokenErr"}))
         ngx.exit(401)
     end
 end
@@ -64,12 +67,14 @@ local function get_wx_media(media_id)
 
     if resp == nil then
         ngx.log(ngx.ERR, "FAILED TO CONNECT TO *Weixin*", req_err)
+        ngx.status = 500
         ngx.say(req_err)
         ngx.exit(500)
     end
 
     if 200 ~= resp.status then
         ngx.log(ngx.ERR, 'GET WECHET MEDIA *FAILED*', req_err)
+        ngx.status = resp.status
         ngx.say(req_err)
         ngx.exit(resp.status)
     end