[Bug 887879] Re: ubiquity crashed with ValueError in raw_decode(): No JSON object could be decoded

[Dmitrijs Ledkovs]

I have tried returning bogus / invalid results when querying timezone as
well timing out the connections for timezone lookup with & without
general internet still present. The Timezone page handled all cases
gracefully, did not crash, and instead behaved just like it does when
one is simply offline.

Please consider this bug as verified.

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Title:
  ubiquity crashed with ValueError in raw_decode(): No JSON object could
  be decoded

Status in “ubiquity” package in Ubuntu:
  Fix Released
Status in “ubiquity” source package in Precise:
  Fix Committed
Status in “ubiquity” source package in Quantal:
  Fix Released

Bug description:
  [Impact] Suboptimal networking environments cause ubiquity to crash.
  [Test Case] Fake up a captive proxy (a stunt proxy that returns some junk HTML for any query should do), run an install behind it, and make sure ubiquity doesn't crash.
  [Regression Potential] The fix is just a try: / except: syslog.syslog(), so should be very safe.

  can not be install. found error code 10 about keyboard layout

  ProblemType: Crash
  DistroRelease: Ubuntu 11.10
  Package: ubiquity 2.8.7
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic i686
  ApportVersion: 1.23-0ubuntu3
  Architecture: i386
  CasperVersion: 1.287
  Date: Wed Nov  9 06:34:14 2011
  ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
  InterpreterPath: /usr/bin/python2.7
  LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
  ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity --only
  ProcEnviron: Error: [Errno 13] Permission denied: '/proc/4163/environ'
  PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', '--only']
  SourcePackage: ubiquity
  Title: ubiquity crashed with ValueError in raw_decode(): No JSON object could be decoded
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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