[zope2-tracker] [Bug 903251] [NEW] ZPublisher setting improper content-type for images

Mon Dec 12 15:54:07 UTC 2011

Public bug reported:

An image inside a Plone 4 site is rendered using Collage with an URL

http://zopyx.com:31240/ise/de/Leistungsangebot_tcm74002.jpg/image

'image' refers to the full-scale version of the image.

Zope delivers the image with content-type text/html

--2011-12-12 16:52:18--  http://ise.veit-schiele.de:31240/ise/de/Leistungsangebot_tcm74002.jpg/image
Resolving ise.veit-schiele.de... 83.223.91.163
Connecting to ise.veit-schiele.de|83.223.91.163|:31240... connected.
HTTP request sent, awaiting response... 
  HTTP/1.0 200 OK
  Server: Zope/(2.12.17, python 2.6.4, linux2) ZServer/1.1
  Date: Mon, 12 Dec 2011 15:52:16 GMT
  Content-Length: 67856
  Content-Type: text/html; charset=utf-8
  Connection: Keep-Alive
  Set-Cookie: I18N_LANGUAGE="de"; Path=/
Length: 67856 (66K) [text/html]

Some debugging show the culprit within the isHTML() method of the
ZPublisher.

112892    tseaver     def isHTML(self, s):
112892    tseaver         s = s.lstrip()
112892    tseaver         # Note that the string can be big, so s.lower().startswith() is more
112892    tseaver         # expensive than s[:n].lower().
112892    tseaver         if (s[:6].lower() == '<html>' or s[:14].lower() == '<!doctype html'):
112892    tseaver             return 1
112892    tseaver         if s.find('</') > 0:
112892    tseaver             return 1
112892    tseaver         return 0

The s.find('</') call returns a value > 0 - obviously the image is containing a byte sequence
matching here.

** Affects: zope2
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/903251

Title:
  ZPublisher setting improper content-type for images

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