The http_requests test sometimes only performs one request
It has been reported by some users of ooniprobe [1] that in some circumstances (it is unclear currently exactly how to reproduce this) the report for a http_requests test will only contain one request instead of two. Moreover when this occurs the headers_match and body_length_match keys will be wrongly set to true.
Here is a sample report entry that exhibits this behavior:
---
agent: agent
body_length_match: true
body_proportion: 1.0
control_failure: null
experiment_failure: null
factor: 0.8
headers_diff: !!set {}
headers_match: true
input: http://www.scratchgames.com/
requests:
- request:
body: null
headers:
- - User-Agent
- ['Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.2) Gecko/20100115 Firefox/3.6']
method: GET
tor: {is_tor: false}
url: http://www.scratchgames.com/
response:
body: <h1>Bad Request (Invalid Hostname)</h1>
code: 400
headers:
- - Date
- ['Mon, 23 Jun 2014 13:03:09 GMT']
- - Connection
- [close]
- - Content-Type
- [text/html]
- - Content-Length
- ['39']
socksproxy: null
...[1] https://lists.torproject.org/pipermail/ooni-dev/2014-August/000139.html