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[Bug 1470700] Re: QNetworkAccessManager hangs when in flight mode

 

Thanks for spotting the tst_QUdpSocket::initTestCase. I believe the test
problems might be because of the builders tests environment, how we have
disabled the generic plugin (so that it doesn't take precedence over nm
plugin) while the builders don't have a full network setup wanted.

The problems might be explained by the more proper behavior with the
patch, but the weather app would need to be tested at least so that it's
functionally intact. No other test suites showed similar regression,
including webbrowser. The apparmor denials are related to bug #1404188 -
it's possible that with this patch the weather app happens to be able to
send a fuller query which is then denied. If the weather app is
functionally identical, then the autopilot tests just do a wrong
assumption, but it will need to be looked into.

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https://bugs.launchpad.net/bugs/1470700

Title:
  QNetworkAccessManager hangs when in flight mode

Status in qtbase-opensource-src package in Ubuntu:
  Confirmed
Status in thumbnailer package in Ubuntu:
  New

Bug description:
  When my phone is in flight mode, HTTP requests made using
  QNetworkAccessManager seem to hang rather than erroring out
  immediately.

  From my tests, it looks like the HTTP request is blocked until the
  flight mode is disabled and a network connection is reestablished.
  This is contrary to the documentation, which states:

  """If the network is not accessible the network access manager will
  not process any new network requests, all such requests will fail with
  an error. Requests with URLs with the file:// scheme will still be
  processed."""

  http://doc.qt.io/qt-5/qnetworkaccessmanager.html#networkAccessible-
  prop

  By running strace on my test program, it doesn't even look like it
  attempts to open a TCP connection when blocked in flight mode.

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References