[Bug 1596713] Re: apport-cli crashes if a hook provides a python list which is a directory w/o files

[Brian Murray]

** Changed in: apport (Ubuntu)
     Assignee: (unassigned) => Martin Pitt (pitti)

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Title:
  apport-cli crashes if a hook provides a python list which is a
  directory w/o files

Status in apport package in Ubuntu:
  New

Bug description:
  I was reviewing an apport hook for somebody and noticed that apport-
  cli would crash when you try to save a report (option K) if the apport
  hook does something odd.  As an example:

  1) mkdir -p /tmp/directory1/directory2
  2) modify an apport package hook to contain the following:
     contents = os.listdir('/tmp/directory1')
     report['DirContents'] = contents
  3) run apport-cli ubuntu-release-upgrader (package hook I modified)
  4) observe the following crash

  Traceback (most recent call last):
    File "/usr/bin/apport-cli", line 370, in <module>
      if not app.run_argv():
    File "/usr/lib/python3/dist-packages/apport/ui.py", line 645, in run_argv
      self.run_symptom()
    File "/usr/lib/python3/dist-packages/apport/ui.py", line 636, in run_symptom
      self.run_report_bug(script)
    File "/usr/lib/python3/dist-packages/apport/ui.py", line 489, in run_report_bug
      response = self.ui_present_report_details(allowed_to_report)
    File "/usr/bin/apport-cli", line 220, in ui_present_report_details
      self.report.write(f)
    File "/usr/lib/python3/dist-packages/problem_report.py", line 448, in write
      f = open(v[0], 'rb')  # file name
  FileNotFoundError: [Errno 2] No such file or directory: 'directory2'

  If DirContents is a folder that contains at least one file we see the
  following error raised instead.

  TypeError: value for key DirContents must be a string,
  CompressedValue, or a file reference

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