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From: Eric Wong <e@80x24.org>
To: yahns-public@yhbt.net
Cc: Eric Wong <e@80x24.org>
Subject: [PATCH 2/3] proxy_pass: avoid accessing logger in env after hijacking
Date: Tue,  5 Jul 2016 13:50:15 +0000	[thread overview]
Message-ID: <20160705135016.14274-3-e@80x24.org> (raw)
In-Reply-To: <20160705135016.14274-1-e@80x24.org>

The HTTP state (@hs) object could be replaced in proxy_wait_next
causing @hs.env['rack.logger'] to become inaccessible.
---
 lib/yahns/proxy_http_response.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/yahns/proxy_http_response.rb b/lib/yahns/proxy_http_response.rb
index a37b387..74f5ce5 100644
--- a/lib/yahns/proxy_http_response.rb
+++ b/lib/yahns/proxy_http_response.rb
@@ -46,7 +46,7 @@ def proxy_write(wbuf, buf, req_res)
   end
 
   def proxy_err_response(code, req_res, exc)
-    logger = @hs.env['rack.logger']
+    logger = self.class.logger # Yahns::HttpContext#logger
     case exc
     when nil
       logger.error('premature upstream EOF')
-- 
EW


  parent reply	other threads:[~2016-07-05 13:50 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-05 13:50 [PATCH 0/3] another round of proxy_pass fixes Eric Wong
2016-07-05 13:50 ` [PATCH 1/3] proxy_pass: avoid TOCTTOU race when unbuffering, too Eric Wong
2016-07-05 13:50 ` Eric Wong [this message]
2016-07-05 13:50 ` [PATCH 3/3] proxy_pass: avoid stuck responses in "proxy_buffering: false" Eric Wong

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