Bug#860778: okular: Often fails to open via symlinks

[Ben Longbons <brlongbons@gmail.com>]

Package: okular
Version: 4:16.08.2-1+b1
Severity: normal

Dear Maintainer,

The following perfectly-legitimate, common, use of symlinks works with
*all* programs that don't go out of their way to *break* it.

Okular manages to do this wrong, presumably by trying to do filesystem
operations without, you know, talking to the filesystem.


#!/bin/sh
set -e
mkdir -p /tmp/okular-bug/
cd /tmp/okular-bug/
mkdir -p bar/baz
echo 'Hello, World!' > bar/hello.txt
ln -sf bar/baz foo
cat bar/hello.txt
okular bar/hello.txt
cat foo/../hello.txt
okular foo/../hello.txt

-Ben


-- System Information:
Debian Release: 9.0
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64
 (x86_64)
Foreign Architectures: i386, x32, arm64

Kernel: Linux 4.9.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages okular depends on:
ii  kde-runtime         4:16.08.3-2
ii  libc6               2.24-10
ii  libfreetype6        2.6.3-3.1
ii  libjpeg62-turbo     1:1.5.1-2
ii  libkdecore5         4:4.14.26-1
ii  libkdeui5           4:4.14.26-1
ii  libkexiv2-11        4:15.04.3-1
ii  libkio5             4:4.14.26-1
ii  libkparts4          4:4.14.26-1
ii  libkprintutils4     4:4.14.26-1
ii  libkpty4            4:4.14.26-1
ii  libokularcore7      4:16.08.2-1+b1
ii  libphonon4          4:4.9.0-4
ii  libpoppler-qt4-4    0.48.0-2
ii  libqca2             2.1.1-4+b2
ii  libqimageblitz4     1:0.0.6-4+b2
ii  libqmobipocket1     4:16.08.0-1
ii  libqt4-dbus         4:4.8.7+dfsg-11
ii  libqt4-declarative  4:4.8.7+dfsg-11
ii  libqt4-svg          4:4.8.7+dfsg-11
ii  libqt4-xml          4:4.8.7+dfsg-11
ii  libqtcore4          4:4.8.7+dfsg-11
ii  libqtgui4           4:4.8.7+dfsg-11
ii  libsolid4           4:4.14.26-1
ii  libspectre1         0.2.8-1
ii  libstdc++6          7-20170407-1
ii  phonon              4:4.9.0-4
ii  zlib1g              1:1.2.8.dfsg-5

Versions of packages okular recommends:
ii  cups-bsd  2.2.1-8

Versions of packages okular suggests:
ii  ghostscript            9.20~dfsg-3
ii  jovie                  4:16.08.0-1+b1
ii  okular-extra-backends  4:16.08.2-1+b1
ii  poppler-data           0.4.7-8
ii  texlive-binaries       2016.20160513.41080.dfsg-2
pn  unrar                  <none>

-- no debconf information