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#! /bin/bash
# Google Chrome Installer/Uninstaller for 64-bit RHEL/CentOS 6 or 7
# (C) Richard K. Lloyd 2017 <[email protected]>
# See https://chrome.richardlloyd.org.uk/ for further details.
# Barring bug fixes, this is the final version of the script!
# Google Chrome 59+ will *not* work on RHEL/CentOS 6, so users
# on that platform should not upgrade beyond version 58.
# This script is in the public domain and has no warranty.
# It needs to be run as root because it installs/uninstalls RPMs.
# Minimum system requirements:
# - 64-bit RHEL/CentOS 6.6 or later (32-bit is no longer supported)
# (any 64-bit RHEL/CentOS 7 version is supported)
# - Minimum RHEL/CentOS 6 kernel version supported is 2.6.32-431.el6
# (any RHEL/CentOS 7 kernel version is supported)
# - At least 250MB free in each of the temporary directory, /opt and /root
# - A working yum system (including http proxy configured if needed)
# - http_proxy and https_proxy env vars set if you are using an http proxy
# - Google Chrome should not be running at the same time as this script
show_syntax()
# Show syntax of script
{
cat <<@EOF
Syntax: ./install_chrome.sh [-b] [-d] [-f [-f [-f]]] [-h] [-n] [-q] [-r] [-s]
[-t tmpdir] [-u] [-U]
-b (or --beta) will switch to beta versions (google-chrome-beta).
-d (or --delete) will delete the temporary directory used for downloads
if an installation was successful.
-f (or --force) forces an automatic "y" for any interactive prompting
except for OS mismatch/OS upgrade/reboot prompts. Specify -f twice to force
it for OS mismatches or OS upgrades as well and three times for reboots
on top of that.
-h (or -? or --help) will display this syntax message.
-n (or --dryrun) will show what actions the script will take,
but it won't actually perform those actions.
-q (or --quiet) will switch to "quiet mode" where minimal info is displayed.
Specify -q twice to go completely silent except for errors.
-r (or --re-run) indicates the script is being re-run after an upgrade
(internal use only - do not use -r during an initial run of the script).
-s (or --stable) will switch to stable versions (google-chrome-stable),
which is the default if -b or -U haven't previously been specified.
-t tmpdir (or --tmpdir tmpdir) will use tmpdir as the temporary directory
parent tree rather than \$TMPDIR (if set) or /tmp.
-u performs an uninstallation of Google Chrome and chrome-deps-* rather the
default action of an installation.
-U (or --unstable) will switch to unstable versions (google-chrome-unstable).
@EOF
}
# Current version of this script
version="8.00"
# This script will download/install the following for an installation:
# These RHEL/CentOS 6 RPMs and their (many!) deps that aren't already installed
# or are out-of-date:
# redhat-lsb, wget, xdg-utils, GConf2, libXScrnSaver, libX11, gnome-keyring,
# gcc, glibc-devel, nss, rpm-build, libexif, dbus, selinux-policy, xz
# and rpmdevtools.
# These RHEL/CentOS 7 RPMs and their (many!) deps that aren't already installed
# or are out-of-date:
# redhat-lsb, wget, xdg-utils, GConf2, libXscrnSaver. libX11, gnome-keyring,
# libexif, dbus, nss, selinux-policy and xz.
# The latest Google Chrome RPM if not already downloaded (or out-of-date).
# RHEL/CentOS 6 only: libstdc++ library from a gcc 6.2.0 source build.
# For RHEL/CentOS 6 only:
# It then copies the downloaded libstdc++ library into /opt/google/chrome*/lib.
# Next, it C-compiles a shared library that provides the "missing"
# gnome_keyring_attribute_list_new function that's installed as
# /opt/google/chrome*/lib/libgnome-keyring.so.0 and linked against a
# newly installed soft-link called
# /opt/google/chrome*/lib/link-to-libgmome-keyring.so.0 which in turn points
# to the system copy of libgmome-keyring.so.0.
# Finally, it creates and installs a chrome-deps-* RPM which includes the
# downloaded libstdc++ library, libgnome-keyring.so.0, the soft-link
# link-to-libgmome-keyring.so.0 and code to modify the
# google-chrome wrapper. (End of RHEL/CentOS 6 only actions)
# Note that you can't run Google Chrome as root - it stops you from doing so.
# Revision history:
# 8.00 - 4th May 2017
# - Barring bug fixes, this is the final release of the script because
# Google Chrome 59+ will no longer work on RHEL/CentOS 6.
# - Changed all 2016 references to 2017.
# - Moved to gcc 7.1.0 for libstdc++ and bumped chrome-deps version
# to 4.00 because of that.
# - If Google Chrome 58 is installed on RHEL/CentOS 6, warn that it's the
# last major release that works on RHEL/CentOS 6 and that it will be an
# increasing security risk to run it in the long term.
# - If version 59+ of Google Chrome is downloadable/installable on RHEL/CentOS 6,
# refuse to download/install it and delete the Chrome repo file to
# prevent "yum update" downloading it.
# 7.51 - 22nd December 2016
# - Superuser now required to run cleanup code in error() function.
# - A checksum and size has been added to version.dat and this is checked
# (against the uncompressed version) when an upgraded script is downloaded.
# - A new gcc 6.3.0 release meant a fresh build of the libstdc++ library
# and a version bump of the chrome-deps RPM.
# 7.50 - 26th August 2016
# - If the script is upgraded and re-run, pass a new -r option to avoid a
# second upgrade, which might have otherwise happened (yes, in a
# never-ending loop) if the downloaded version.dat file was a cached copy.
# - xz is now installed/updated early on (prior to any wget-based downloads).
# - Upgrades now download/decompress install_chrome.sh.xz, only falling
# back to the uncompressed download if that fails.
# - Use gcc 6.2.0 as the basis for libstdc++.so.
# - Web site is now 100% SSL (http requests redirect to the equivalent https),
# thanks to a new auto-renewing Let's Encrypt secure cert.
# 7.40 - 15th May 2016
# - If wget isn't installed (e.g. it's a minimal CentOS 6 install) or it's
# out-of-date, download and install it.
# - dbus and selinux-policy (if SELinux is enabled) dependencies have been
# added, which may help minimal installs.
# - If dbus isn't running on CentOS 6, it's now started and also enabled via
# chkconfig for future reboots.
# - If any of the main dependencies are out-of-date, they will now be updated
# (this is particularly critical for nss and selinux-policy, which won't work
# on an unpatched 6.7 install).
# 7.31 - 29th April 2016
# - The Google Chrome binary seems to dynamically load libexif.so.12 at
# runtime which caused me to miss libexif off the dependencies list, so
# it's finally been added in.
# - gcc 6.1.0 is now used as the basis for the libstdc++ download, so that
# meant a new size and checksum as usual.
# 7.30 - 5th March 2016
# - Google have completely pulled the 32-bit Linux Google Chrome repository,
# so I've matched this by dropping 32-bit support (I don't understand
# why anyone would ever install 32-bit RHEL/CentOS, but that's just me :-) ).
# - An out-of-date kernel is always an error now rather than a warning.
# 7.24 - 13th February 2016
# - Adjusted year references to be 2016.
# - Finally removed all references to LD_PRELOAD.
# - Warn that this script's 32-bit support is deprecated and will be
# removed in a future release (shortly after Google Chrome drops 32-bit).
# - CentoS 7.2.1511 is on the mirrors, so grab 32-bit libstdc++ from that
# and switch the fallback to the 7.1.1503 version.
# 7.23 - 15th December 2015
# - Increased version of chrome-deps package to 3.12 because of the newer
# libstdc++ in the previous release (yes, I should have done that with 7.22).
# - wget now ignores cached files (e.g. from proxies) when downloading.
# - If your running kernel is older than 2.6.32-431.el6 and you either refuse
# (or fail) to update it when prompted or refuse to reboot after the latest
# kernel update, then this is now a fatal error rather than a warning.
# - On an unrelated note (the company I work for hosts the official site),
# good luck to Tim Peake/Principia today - see https://principia.org.uk/
# 7.22 - 12th December 2015
# - The gcc 5.3.0-built version of 64-bit libstdc++.so.6 is now downloaded,
# triggering a new script release.
# - RHEL/CentOS 6.6 is now the mandatory minimum 6.X release this script will
# run on. If you don't upgrade to at least 6.6 when prompted, the script
# will abort (previous releases let you continue with a warning).
#
# 7.21 - 23rd July 2015
# - gcc 5.2.0 was recently released, so the downloadable 64-bit libstdc++.so.6
# was rebuilt using it. A new checksum/size for the library meant a new
# script release.
# 7.20 - 7th June 2015
# - Warn about out-of-date kernels that will cause Google Chrome to crash
# and offer to update the kernel (and preferably reboot).
# - Fixed a yum repo path typo shown during a dry run (-n) (reported by John
# Stembridge).
# - Don't try to create a spec file if the dry run option -n is specified
# (also reported by John Stembridge).
# - Removed remove_redundant_libs() function - ironically, it's now redundant.
# 7.13 - 24th April 2015
# - Updated the downloadable 64-bit libstdc++.so.6 to one built from gcc 5.1.0.
# Sadly, the uncompressed library has bloated to being 60% bigger than the
# one created from gcc 4.9.2 :-(
# 7.12 - 10th April 2015
# - CentOS 7.0.1406 got abruptly shunted off to vault.centos.org this week,
# promptly completely breaking the 32-bit libstdc++ RPM download. Now the
# download looks at latest 7.1.1503 RPM on mirror.centos.org first and if
# that gets moved (which it eventually will be when 7.2 comes out), it looks
# at the latest 7.0.1406 update on vault.centos.org as a fallback.
# 7.11 - 23rd February 2015
# - Added a Provides: link to the spec file to avoid RPM dependency issues
# with the soft-link (thanks to Raymond Page for spotting the issue) and
# bumped chrome-deps-* RPM version to 3.11.
# 7.10 - 6th February 2015
# - The later libstdc++ works fine with LD_LIBRARY_PATH pointing to it when
# sub-processes are run, so we can finally stop using LD_PRELOAD and the
# unset_var.so shared library.
# - We still need the "missing" gnome_keyring_attribute_list_new function
# that's in later releases of libgnome-keyring.so.0, so build a library
# using that name with the function in it, but link it against a soft-link
# (link-to-libgnome-keyring.so.0 which soft-links to the system-installed
# copy of libgnome-keyring.so.0). Convoluted, but allows us to bring in
# both gnome_keyring_attribute_list_new and all the other library functions/
# symbols in at start-up.
# - Added gnome-keyring as a dependency just to make sure it's there before
# we go ahead with the machinations above.
# - 50% reduction in orphaned kitten-killing tendencies.
# 7.00 - 2nd February 2015
# - Raise minimum RHEL/CentOS 6 version required from 6.5 to 6.6. This is
# because 6.6 now has library updates that negate the need to install patched
# versions from Fedora 15 or 17.
# - The only external library that has to remain is libstdc++, which provides
# the appropriate runtime symbols to satisfy the Google Chrome binary. The
# good news is that it no longer needs to be patched. For 64-bit systems,
# the libstdc++ is lifted by me from a gcc 4.9.2 source build I did.
# For 32-bit systems, libstdc++ is extracted from the CentOS 7 libstdc++ RPM.
# - If the updated CentOS 7 libstdc++ 32-bit RPM goes "missing" (e.g. it is
# removed because of an even newer update), fall back to the
# original 32-bit libstdc++ RPM that shipped with the initial CentOS 7 release.
# I will release a new script version if a libstdc++ (or gcc source) update
# happens of course.
# - Remove any unneeded /opt/google/chrome*/lib libraries that are probably
# hanging around from earlier script releases. For the avoidance of
# doubt, this includes removing the F15 libc library, thus removing the
# GHOST vulnerability that previous script releases may have had.
# - Use %_topdir for RPM build dir location (thanks to Bob Hepple for this)
# - Changed year to 2015 in a few places.
# - Now kills less orphaned kittens than ever!
# 6.10 - 29th August 2014
# - Don't permanently run 2 copies of cat from the google-chrome script
# (this is a horrible kludge intro'ed by Google Chrome 37). They both
# crashed with the previous (6.00) install_chrome.sh, so now just redirect
# stdout and stderr to /dev/null instead (OK, it'll hide console messages/
# errors, but that's better than 2 core dumps or, indeed, running 2 cats).
# - Added "Obsoletes: chrome-deps" to the RPM spec file (suggested by a
# couple of users).
# - Bumped both wrapper_mod_version and the chrome-deps RPM to version 2.10.
# 6.00 - 27th July 2014
# - Google Chrome 36 onwards now has separate install trees for each
# RPM type (stable, beta, unstable), but bizarrely all 3 RPMs include an
# /usr/bin/google-chrome soft-link, preventing simultaneous installation.
# Code was duly added to deal with this significant change.
# - Added PackageKit as a dependency (some live CentOS DVDs don't install it).
# - Removed the last remnants of the custom CentOS 7 repo code.
# - Used a soft-link to fix a failed grep of google-chrome.desktop during the
# installation of the beta or unstable RPM (this is a Google bug, not mine).
# - wrapper_mod_version changed to 2.00 and code added to scan for
# all 3 RPM types since the defaults for all 3 of them are dubiously
# stuck in a single /etc/default/google-chrome file.
# - Bumped chrome-deps-* version to 2.00 because check for google-chrome*
# binary path was widened and the RPM name has changed to include
# stable, beta or unstable as appropriate.
# - If an old "chrome-deps" RPM is present during (un)installation, remove it.
# 5.02 - 10th July 2014
# - Now CentOS 7 final is out, remove the pre-release repo code and
# delete the .repo file if it was created. Refusing to upgrade the OS to
# 6.5 or later will now terminate the script rather than continue with a
# warning. Changed all equivalent RHEL and CentOS references to be
# RHEL/CentOS instead.
# 5.01 - 26th June 2014
# - Fix for latest CentOS 7 pre-release repo detection, because the latest
# pre-release bizarrely includes placeholder .repo files that don't do
# anything.
# 5.00 - 21st June 2014
# - Added support for pre-release CentOS 7, which mainly means no RPM building
# and also the installation of missing dependencies. If no CentOS 7 repos are
# detected - which is the current case with pre-release CentOS 7 versions -
# in /etc/yum.repos.d, a "chrome-deps-updates" repo will be created (this
# will be removed on later runs if any other .repo files are created, on the
# assumption that the user has added their own repos for installing/updating
# RPMs instead or the final CentOS 7 repos are already present).
# - Minimum RHEL/CentOS 6 release supported is now 6.5, which has been out for
# over 6 months at the time of writing. This means libX11 and nss should be
# up-to-date versions, avoiding run-time problems with older versions of
# those packages.
# - Tidied up final messages e.g. it now says the latest version was already
# installed if that was the case.
#
# 4.70 - 17th May 2014
# - Added -f option to auto-force a "y" answer to any interactive prompt
# without bothering to actually prompt you (thanks to Steve Cleveland for the
# idea). The only exceptions to this are the prompts for an OS mismatch, OS
# upgrade or reboot, but even those can be forced by specifying -f twice (or
# three times for reboots).
# - Fixed the 2-hourly bash segfault recorded in syslog. It was caused by the
# chrome binary self-calling the google-chrome bash script to get its version,
# which is bizarre since surely it could just call one of its own functions
# to get that? By unsetting LD_LIBRARY_PATH on the self-call, the segfault
# was avoided. Bumped chrome-deps to version 1.21 because of this.
# 4.60 - 12th April 2014
# - The latest Google Chrome releases kept prompting me for a keyring
# password when starting up. It turns out they were using the
# gnome_keyring_attribute_list_new function, which didn't exist until Fedora
# 17's libgnome-keyring.so.0 library! Luckily, the F17 library works in
# RHEL/CentOS 6, so that's been added and the chrome-deps RPM has been
# bumped to version 1.20.
# - Added nss to the list of possible RHEL/CentOS 6 RPMs that are installed
# (thanks to Ravi Saive at tecmint.com for this, though no-one told me
# directly...).
# - Check the size and cksum of downloaded RPMs and delete them (and quit) if
# they are bad.
# 4.50 - 11th December 2013
# - A user reported that file-roller wouldn't work when opening downloaded
# .tar.gz files inside Google Chrome. It turns out LD_PRELOAD was still set
# when file-roller tried to exec() sub-processes like gzip, so I now unset
# LD_PRELOAD (as well as LD_LIBRARY_PATH) when exec'ing from within Google
# Chrome, which fixes the issue. chrome-deps version was bumped to 1.10
# because of this change. Another user suggested checking previously
# downloaded F15 RPMs have the right checksum/size (and a fresh download is
# forced if they don't), which has been implemented.
# 4.41 - 9th December 2013
# - Added glibc-devel to the list of dependencies because a user reported
# that it wasn't dragged in by gcc. With the imminent release of Fedora 20,
# Fedora 15 has been archived and the code has been changed to reflect that.
# Removed SELinux warning at end of install - the last few releases of
# Google Chrome don't seem to have a problem with enforcing mode w.r.t.
# nacl_helper. Future releases of this script may remove all SELinux-related
# code if enforcing mode remains OK. Google Chrome 31 is displaying a
# manifestTypes error to the console in some setups, but this doesn't seem
# to affect the running of Google Chrome.
# 4.40 - 5th October 2013
# - A similar issue to the 4.30 release cropped up again (reported by
# the same user!) that I still can't reproduce. This time it was a missing
# gdk_pixbuf_format_get_type symbol in F15's libgtk-x11-2.0. This was fixed
# by additionally downloading F15's gdk-pixbuf2 RPM and extracting
# libgdk_pixbuf-2.0 from it. This prompted a bump of the chrome-deps RPM to
# version 1.03.
# 4.30 - 4th October 2013
# - The g_desktop_app_info_get_filename symbol in the F15 libgdk-x11-2.0
# library is present in the F15 libgio-2.0 library (but not in RHEL/CentOS's).
# The script used the former library, but not the latter and a user reported
# a missing symbol crash due to this, despite my testing not showing the
# issue. This release is therefore purely to add libgio-2.0 and its
# libgobject-2.0 dependency to the set of extracted F15 libraries and has
# also been tested against Google Chrome 30 and Google Talk Plugin 4.7.0.0.
# The chrome-deps RPM is now at version 1.02 because of the two extra
# libraries.
# 4.20 - 22nd August 2013
# - If the Google Chrome repo is enabled and a Google Chrome RPM is already
# installed, use "yum check-update google-chrome-stable" to determine if
# there is a newer version available and then fallback to using the
# OmahaProxy site if there isn't.
# - Any newer version than what's been previously downloaded or installed
# can now be downloaded/installed, rather than being exactly the version
# displayed on the OmahaProxy site (which was out of date for a full day when
# Chrome 29 was released, stopping this script from updating to version 29).
# - Removed terminal messages warning because this is fixed with Google Chrome
# 29.
# - Used extra parameters in the OmahaProxy request to narrow the data down to
# the exact channel and platform (linux).
# 4.10 - 8th August 2013
# - Fixed Google Talk (Hangouts) plugin crash - it was because, unlike Google
# Chrome itself, the plugin hasn't been built with later libraries, so it
# needs LD_LIBRARY_PATH to be unset. There still appears to be other
# library issues with the Hangouts plugin, mainly because the older libraries
# don't implement certain calls it uses. Google need to update the plugin!
# Bumped chrome-deps version to 1.01 because of the unset_var.c change.
# - Catered for non-standard i686 RPM build trees on 32-bit systems. I couldn't
# reproduce this myself (it uses i386 for me all the time in RHEL/CentOS and
# Scientific Linux 32-bit VMs) but the code is in place anyway for the users
# that reported the issue.
# - modify_wrapper (now bumped to version 1.01) no longer echoes anything to
# stdout after a successful update of /opt/google/chrome/google-chrome.
# 4.01 - 30th July 2013
# - Emergency 2-char change fix due to a terrible spec parsing bug in rpmbuild.
# It appears that it tries to parse % directives in comment lines.
# Strangely, three different build envs of mine didn't have the bug, but
# a fourth one I tried did.
#
# 4.00 - 30th July 2013
# - Creates a new chrome-deps RPM that it installs alongside the
# google-chrome-stable RPM. It contains the Fedora libraries, the
# built unset_var.so library and a script which is run post-install
# to add code to /etc/default/google-chrome to modify google-chrome if
# its LD_PRELOAD addition isn't present. This gets sourced daily by
# /etc/cron.daily/google-chrome and is a way to auto-modify google-chrome
# within a day of a Google Chrome update (this is because google-chrome
# isn't marked as a config file by Google Chrome's spec file, so updates
# will overwrite any changes made to it). The new code will also enable the
# Google Chrome repo of course. Many thanks to Marcus Sandberg
# for his spec file at https://github.com/adamel/chrome-deps which
# I used as the initial basis for the spec file I create.
# - Adjusted unset_var code to not unset LD_LIBRARY_PATH if a full file
# path (i.e. one containing a slash) is supplied to exec*() routines.
# - Download/installation of google-chrome-stable/chrome-deps dependencies
# is now prompted for (if you decline, the script aborts).
# - Moved out-of-date OS check right to the end of the script and it also
# now offers to reboot the machine after a successful OS update. Warn user
# not to run Google Chrome if either the OS update or reboot are declined
# until they complete the OS update and reboot.
# - Don't remove /etc/cron.daily/google-chrome or
# /etc/yum.repos.d/google-chrome.repo any more because we actually want
# people to use those (they won't be happy cron'ing this script or having
# to regularly run it manually to check for updates).
# - Added -t option to specify the temporary directory parent tree.
# - Added -s (stable), -b (beta) and -U (unstable) options to switch
# release channels. Yes, it remembers the switch, so you only have to
# specify once time.
# - Added libdl.so.2 to the Fedora library list (for unset_var.so).
# 3.20 - 27th July 2013
# - Initial attempt to stop helper apps crashing by wrapping exec*() routines
# with LD_PRELOAD functions that save/blank LD_LIBRARY_PATH, call the
# original routines and, if they return, restore LD_LIBRARY_PATH. Seems to
# stop crashes previously logged to syslog on startup at least, but does
# require gcc and its dependencies to be installed now of course.
# 3.11 - 25th July 2013
# - If SELinux is enabled, set appropriate SELinux contexts on Fedora libraries
# in /opt/google/chrome/lib and that directory itself. Investigation shows
# that if you enable SELinux and set it to enforcing, nacl_helper appears to
# fail to start correctly, possibly disabling sandboxing. The script warns
# about this and suggests a temporary workaround of setting
# SELINUX=permissive in /etc/selinux/config and rebooting. It's hoped to fix
# this SELinux issue more permanently in a future release soon (any help is
# most welcome!).
# 3.10 - 24th July 2013
# - Use .so.0 extension (instead of .so.3) for renamed Fedora ld-linux library
# and change ld-linux*.so.2 references to ld-linux*.so.0 in ld-linux, libc
# and libstdc++. Thanks to Marcus Sundberg for this suggestion.
# - Dependency list for Google Chrome RPM is now redhat-lsb, wget, xdg-utils,
# GConf2, libXScrnSaver and libX11 (not 1.3* or 1.4* though).
# - If OS version ("lsb_release -rs") is less than 6.4 then
# offer to "yum update" and refuse to continue if the user declines.
# If you don't update to at least 6.4, bad things can
# happen (I got a hang and a memory allocation error when starting Google
# Chrome on a RHEL/CentOS 6.0 VM for example).
# 3.00 - 21st July 2013
# - Command-line options now supported including -d (delete temp dir),
# -h (syntax help), -n (dry run), -q (quiet) and -u (uninstall).
# - Abort if Google Chrome is running when the script is started.
# - Display any non-zero disk space figures for /opt/google/chrome and the
# temporary download directory at the start and end of the script.
# 2.10 - 20th July 2013
# - Can now detect if Fedora 15 RPMs have been archived and will download
# them from the archive site if they're found there instead.
# - Fixed lsb package check, so lsb deps will actually be downloaded now.
# - Follow Fedora 15 library soft-links to determine the actual filenames
# that need to be copied.
# - Removed /etc/cron.daily/google-chrome and
# /etc/yum.repos.d/google-chrome.repo straight after the Google Chrome RPM
# is installed to avoid any potential conflict with old releases.
# - Simplistic check for RHEL/CentOS 6 derivatives (initially a prompt if the
# script thinks you aren't running one, but a future release will block
# non-derivatives).
# - Early exits due to errors or an interrupt (CTRL-C) will now properly
# tidy up files in the temporary directory and uninstall the Google Chrome
# RPM if it was installed.
# - All downloads now go via a common function, which saves any pre-existing
# file as a .old version and renames it back if the download fails.
# 2.00 - 14th July 2013
# - Installed a 32-bit RHEL/CentOS 6.4 VM and this enabled me to add initial
# 32-bit support, though there is an nacl_helper issue that I display a warning
# for. Thanks to Seva Epsteyn for a 32-bit patch that got the ball rolling.
# - Check for version number of latest Google Chrome and download/install it
# if it hasn't been already.
# - Use updated Fedora 15 RPMs rather than the original ISO versions.
# - Warn if an enabled Google Chrome repo is detected (we don't want it).
# - Tidied main code into separate functions.
# - Added blank lines before/after messages and prefixed them with three stars.
# - Displayed more messages now they're easier to read.
# 1.10 - 13th July 2013
# - Added an update check for a new version of this script.
# It will always download/install the new version, but will ask
# if you want to run the new version or exit in case you want to
# code inspect it first.
# - Always force-install a downloaded Google RPM, even if a version
# is already installed. Yes, very obvious it should do this but it
# didn't (slaps forehead).
# 1.02 - 13th July 2013
# - Second emergency fix today as someone spotted that wget needed
# "--no-check-certificate" to talk to Google's https download site.
# I didn't need it for the two machines I tested it on though!
# - Added in a check for wget as well while I was at it and it will
# yum install wget if it's not found.
# 1.01 - 13th July 2013
# - Bad variable fix if you've not downloaded Google Chrome's RPM yet.
# Serves me right for making a last minute change and not testing it :-(
# 1.00 - 13th July 2013
# - Tested on 64-bit RHEL/CentOS 6.4 using Fedora 15 libraries. Code is there
# for 32-bit but has not been tested at all because I have no such systems.
message_blank_line()
# $1 != "n" (and no quiet mode) to display blank line
{
if [ $quiet -eq 0 -a "$1" != "n" ]
then
echo
fi
}
message_output()
# Display $1 depending on the quiet mode
{
case "$quiet" in
0) echo "*** $1 ..." ;;
1) echo "$1" ;;
esac
}
message()
# Display a message (passed in $1) prominently
# $2 = "n" to avoid displaying blank lines before or after the message
{
if [ $quiet -eq 2 ]
then
return
fi
if [ $dry_run -eq 1 ]
then
echo "Would display the following message:"
message_output "$1"
echo
return
fi
message_blank_line "$2"
message_output "$1"
message_blank_line "$2"
}
warning()
# $1 = Warning message to display to stderr
# $2 = "n" to avoid displaying blank lines before or after the message
{
message "WARNING: $1" "$2" >&2
}
show_space_used()
# Calculate disk space and number of files in install and temp dirs
# and display it if there actually any installed files
{
for each_tree in "$inst_tree" "$tmp_tree"
do
if [ -d "$each_tree" ]
then
num_files="`find \"$each_tree/.\" -type f | wc -l`"
if [ $num_files -gt 0 ]
then
size_files="`du -s \"$each_tree/.\" | awk '{ printf(\"%d\",$1/1024); }'`"
message "$each_tree tree contains $num_files files totalling $size_files MB" "n"
fi
fi
done
}
clean_up()
# Remove the stuff we don't want to keep once script finishes
{
# Make sure we don't trash system directories!
if [ "$tmp_tree" != "" -a "$tmp_tree" != "/" -a "$tmp_tree" != "/tmp" ]
then
if [ $delete_tmp -eq 1 ]
then
if [ -d "$tmp_tree" ]
then
if [ $dry_run -eq 1 ]
then
echo "Would delete temporary dir $tmp_tree"
echo
else
cd /
rm -rf "$tmp_tree"
if [ -d "$tmp_tree" ]
then
warning "Failed to delete temporary directory $tmp_tree"
else
message "Deleted temporary directory $tmp_tree"
fi
fi
fi
else
rm_dir_list="etc lib lib64 usr sbin usr var `basename $tmp_updates`"
if [ $dry_run -eq 1 ]
then
echo "Would delete these directories/files from inside of $tmp_tree:"
echo "$rm_dir_list"
else
# We delete specific directories/files so that RPM downloads/builds
# remain and can be re-used if the script is run again
for each_dir in $rm_dir_list
do
rm -rf "$tmp_tree/$each_dir"
done
fi
fi
show_space_used
fi
}
is_installed()
# See if $1 package is installed (returns non-null string if it is)
{
rpm -q "$1" | egrep "($rpmarch|$arch|noarch)" | grep "^$1"
}
uninstall_rpms()
# Uninstall $* RPMs if they are installed
{
uninstall_list=""
for each_pack in $*
do
if [ "`is_installed $each_pack`" != "" ]
then
uninstall_list="$uninstall_list $each_pack"
fi
done
if [ "$uninstall_list" != "" ]
then
if [ $dry_run -eq 1 ]
then
echo "Would uninstall $uninstall_list using \"yum $yum_options remove\""
echo
else
message "Uninstalling $uninstall_list"
yum $yum_options remove $uninstall_list
fi
fi
}
uninstall_google_chrome()
# Uninstall the Google Chrome and chrome-deps-* RPMs if they are installed
{
# Remove bug fix soft-link if necessary
if [ "$rpm_type" != "stable" -a -h $chrome_desktop ]
then
rm -f $chrome_desktop
fi
# Note we use the old name in addition, in case it's still installed
uninstall_rpms $rpm_name $deps_name
# Do a final cleanup if /opt/google/chrome* persists
if [ "$inst_tree" != "" -a "$inst_tree" != "/" -a "$inst_tree" != "/tmp" ]
then
if [ -d "$inst_tree" -a $dry_run -eq 0 ]
then
warning "$inst_tree install tree still present - deleting it" "n"
cd /
rm -rf "$inst_tree"
if [ -d "$inst_tree" ]
then
warning "Failed to delete $inst_tree install tree" "n"
fi
fi
fi
}
error()
# $1 = Error message
# Exit script after displaying error message
{
if [ $dry_run -eq 1 ]
then
echo "Would display this error message to stderr:"
echo "ERROR: $1 - aborted"
else
echo >&2
echo "ERROR: $1 - aborted" >&2
echo >&2
fi
# Only uninstall/clean up if the superuser
if [ `id -u` -eq 0 ]
then
# A failure means we have to uninstall Google Chrome
# if it got on the system and we were installing, but only
# if we got past the check that it was running
if [ $do_install -eq 1 -a $past_run_check -eq 1 ]
then
uninstall_google_chrome
fi
clean_up
fi
exit 1
}
interrupt()
# Interrupt received (usually CTRL-C)
{
error "Interrupt (usually CTRL-C) received"
}
set_tmp_tree()
# Set tmp_tree variable to $1/chrome_install
{
if [ "$1" = "" -o "$1" = "/" -o "`echo \"x$1\" | grep ^x-`" != "" ]
then
error "Invalid temporary directory parent specified ($1)"
fi
if [ ! -d "$1" ]
then
warning "Temporary directory parent $1 doesn't exist - will be created"
fi
tmp_tree="$1/chrome_install"
customsrc="$tmp_tree/missing_functions.c"
tmp_updates="$tmp_tree/updates.dat$$"
}
check_binary_not_running()
# See if the Google Chrome binary is running and abort if it is
{
if [ $dry_run -eq 1 ]
then
echo "Would check to see if $chrome_name is running and abort if it is."
echo
else
if [ "`ps -ef | grep \"$inst_tree/chrome\" | grep -v grep`" != "" ]
then
error "$chrome_name is running - exit it then re-run this script"
fi
fi
past_run_check=1
}
yesno()
# $1 = Message prompt
# $2 = Minimal force level required (1 if not stated)
# Returns ans=0 for no, ans=1 for yes
{
ans=1
if [ $dry_run -eq 1 ]
then
echo "Would be asked here if you wanted to"
echo "$1 (y/n - y is assumed)"
else
if [ "$2" = "" ]
then
minforce=1
else
minforce=$2
fi
if [ $force -lt $minforce ]
then
ans=2
fi
fi
while [ $ans -eq 2 ]
do
echo -n "Do you want to $1 (y/n) ?" ; read reply
case "$reply" in
Y*|y*) ans=1 ;;
N*|n*) ans=0 ;;
*) echo "Please answer y or n" ;;
esac
done
}
set_rpm_type()
# Set RPM type to $1
# $1 = stable, beta or unstable
{
if [ $do_install -eq 1 -a "$1" != "$old_rpm_type" ]
then
case "$1" in
stable|beta|unstable)
if [ $dry_run -eq 1 ]
then
echo "Would prompt to confirm switch to $1 channel"
echo "(assuming y is input)"
echo
else
warning "You have requested to switch to the $1 channel"
if [ $quiet -eq 0 ]
then
echo "This script will uninstall all previously installed $chrome_name"
echo "packages that originated from non-$1 channels."
echo
fi
yesno "install the $1 release"
if [ $ans -eq 0 ]
then
error "Did not switch to the $1 channel"
fi
fi ;;
*) error "Invalid $chrome_name channel ($1)" ;;
esac
check_binary_not_running
uninstall_rpms \
`echo google-chrome-stable google-chrome-beta google-chrome-unstable \
chrome-deps-stable chrome-deps-beta chrome-deps-unstable | \
sed -e "s/google-chrome-$1//g" -e "s/chrome-deps-$1//g"`
fi
case "$1" in
stable|beta|unstable)
rpm_type="$1"
case "$1" in
unstable) csv_type="dev" ;;
*) csv_type="$1" ;;
esac
rpm_name="google-chrome-$1"
chrome_csv="http://omahaproxy.appspot.com/all?os=linux&channel=$csv_type"
chrome_rpm="${rpm_name}_current_$rpmarch.rpm" ;;
*) error "Invalid $chrome_name type ($1)" ;;
esac
case "$1" in
beta|unstable) swtype="chrome-$1" ;;
*) swtype="chrome" ;;
esac
inst_tree="/opt/google/$swtype"
libdir="$inst_tree/lib"
missinglib="libgnome-keyring.so.0"
customlib="$libdir/$missinglib"
customlink="$libdir/link-to-${missinglib}"
chrome_wrapper="$inst_tree/google-$swtype"
modify_wrapper="$inst_tree/modify_wrapper"
this_desktop="$app_tree/google-$swtype.desktop"
deps_name="chrome-deps-$rpm_type"
deps_latest="`is_installed $deps_name | grep $deps_version`"
}
init_vars()
# Initialise variables
# $1 = Original $0 (i.e. script name)
{
# Set option variables to temporary values so that errors prior to the
# actual option parsing behave sensibly
dry_run=0 ; do_install=0 ; delete_tmp=0
past_run_check=0 ; force=0 ; quiet=0
# Avoid picking up the custom libs for any binaries
# run by this script
unset LD_LIBRARY_PATH
if [ "$TMPDIR" = "" ]
then
set_tmp_tree "/tmp"
else
set_tmp_tree "$TMPDIR"
fi
arch="`uname -m`"
case "$arch" in
x86_64) rellib="lib64" ; rpmarch="$arch"
rpmdep="()(64bit)" ;;
*) error "Unsupported architecture ($arch)" ;;
esac
relusrlib="usr/$rellib"
chrome_name="Google Chrome"
# The next definition (chrome_defaults) should probably be different for
# stable vs. others, but Google haven't changed it because it's not
# shipped with the RPM, but actually created during installation.
chrome_defaults="/etc/default/google-chrome"
chrome_repo="/etc/yum.repos.d/google-chrome.repo"
app_tree="/usr/share/applications"
chrome_desktop="$app_tree/google-chrome.desktop"
deps_version="4.00"
download_lib="libstdc++.so.6"
download_lib_xz="$download_lib.xz"
# Don't get clever and increase good_version to try to install a
# version 59+ Google Chrome - you'll just break the browser and
# it'll all end in tears with no way to downgrade again!
good_version=58 # Last good version - do NOT edit this
let bad_version=$good_version+1
bad_version="$chrome_name ${bad_version}+"
# Find the most stable installed Google Chrome and use that
# as the default for the rest of the script (override with -b, -s or -U)
old_rpm_type=""
for each_old_rpm_type in stable beta unstable
do
if [ "$old_rpm_type" = "" ]
then
if [ "`is_installed google-chrome-$each_old_rpm_type`" != "" ]
then
old_rpm_type="$each_old_rpm_type"
fi
fi
done
# If nothing installed at all, default to stable
if [ "$old_rpm_type" = "" ]
then
old_rpm_type="stable"
fi
set_rpm_type "$old_rpm_type"
wrapper_mod_version="2.10"
install_message="already installed"
trap "interrupt" 1 2 3
wget="/usr/bin/wget"
wget_options="--no-check-certificate --no-cache"
yum_options="-y"
rpm_options="-U --force --nodeps"
chcon_options="-u system_u"
rpmbuild_options="-bb"
# Update checker URL
checksite="https://chrome.richardlloyd.org.uk/"
checkfile="version.dat"
checkurl="$checksite$checkfile"
scriptname="install_chrome.sh"
upgradeurl="$checksite$scriptname"
script="$1"
case "$script" in
./*) script="`pwd`/`basename $script`" ;;
/*) script="$script" ;;
*) script="`pwd`/$script" ;;
esac
}
download_file()
# $1 = Full URL to download
# $2 = Optional basename to save to (if omitted, then = basename $1)
# Also allow download to silently fail without exit if $2 is set
# $3 = Optional cksum value to compare download against
# $4 = Optional 0 if failures are warnings, = 1 if errors
# Returns bad_download=0 for success, = 1 for failure
{
bad_download=0
if [ "$2" = "" ]
then
dlbase="`basename \"$1\"`"
else
dlbase="$2"
fi
if [ $dry_run -eq 1 ]
then
echo "Would download this URL to $tmp_tree/$dlbase :"
echo $1 ; echo
return
fi
old_dlbase="$dlbase.old"
if [ -f "$dlbase" ]
then
if [ "$3" != "" ]
then
# If file already exists with right cksum, do nothing
if [ "`cksum \"$dlbase\"`" = "$3" ]
then
return
fi
fi
rm -f "$old_dlbase"
mv -f "$dlbase" "$old_dlbase"
fi
message "Downloading $dlbase (please wait)"
$wget $wget_options -O "$dlbase" "$1"
if [ -s "$dlbase" -a "$3" != "" ]
then
if [ "`cksum \"$dlbase\"`" != "$3" ]
then
rm -f "$dlbase"
warning "Deleted downloaded $dlbase - checksum or size incorrect"
fi
fi
if [ ! -s "$dlbase" ]
then
bad_download=1