[tor-bugs] #15454 [Ooni]: Unable to run ooniprobe against Vodafone mobile broadband (UK)

Tue Mar 24 15:38:47 UTC 2015

#15454: Unable to run ooniprobe against Vodafone mobile broadband (UK)
-------------------------+-------------------------
 Reporter:  cypherpunks  |          Owner:  hellais
     Type:  defect       |         Status:  new
 Priority:  normal       |      Milestone:
Component:  Ooni         |        Version:
 Keywords:               |  Actual Points:
Parent ID:               |         Points:
-------------------------+-------------------------
 When running ooniprobe on the Vodafone mobile broadband network, the probe
 encounters an error during the collection of the non-tor response.

 The target URL was reddit.com/r/nsfw (which is blocked on Vodafone UK)

 The error from the report file is:

 `experiment_failure: unknown_failure [<twisted.python.failure.Failure
 <type 'exceptions.ValueError'>>]`

 The same error is reported when using a simple test script that contains a
 twisted Agent retrieving the target page.

 I think this may be because the 302 redirect response that Vodafone uses
 to send people to the content control advisory page does not have a
 content-length or transfer encoding, and this is breaking twisted's Agent.

 Here's the curl response:

 {{{
 $ curl -v http://reddit.com/r/nsfw
 * About to connect() to reddit.com port 80 (#0)
 *   Trying 198.41.209.140...
 * connected
 * Connected to reddit.com (198.41.209.140) port 80 (#0)
 > GET /r/nsfw HTTP/1.1
 > User-Agent: curl/7.26.0
 > Host: reddit.com
 > Accept: */*
 >
 * additional stuff not fine transfer.c:1037: 0 0
 * HTTP 1.1 or later with persistent connection, pipelining supported
 < HTTP/1.1 302 Moved Temporarily
 < Location:
 http://online.vodafone.co.uk/dispatch/Portal/ContentControlServlet?type=restricted
 < Content-Type: text/html
 < charset=iso-8859-1
 < Proxy-Connection: close
 * no chunk, no close, no size. Assume close to signal end
 <
 * nread <= 0, server closed connection, bailing
 * Closing connection #0
 <html><body><p>The document has moved</p></body></html>
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15454>
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