#!/bin/sh

#

# Copyright (c) 2009 The Chromium Authors. All rights reserved.

# Use of this source code is governed by a BSD-style license that can be

# found in the LICENSE file.

#

# This script is part of the mod-pagespeed package.

#

# It creates the repository configuration file for package updates, since

# we cannot do this during the mod-pagespeed installation since the repository

# is locked.

#

# This functionality can be controlled by creating the $DEFAULTS_FILE and

# setting "repo_add_once" to "true" or "false" as desired. An empty

# $DEFAULTS_FILE is the same as setting the value to "false".

​

# System-wide package configuration.

DEFAULTS_FILE="/etc/default/mod-pagespeed"

​

# sources.list setting for mod-pagespeed updates.

REPOCONFIG="http://dl.google.com/linux/mod-pagespeed/rpm/stable"

​

# Install the repository signing key (see also:

# http://www.google.com/linuxrepositories/aboutkey.html)

install_rpm_key() {

  # Check to see if key already exists.

  rpm -q gpg-pubkey-7fac5991-4615767f > /dev/null 2>&1

  if [ "$?" -eq "0" ]; then

    # Key already exists

    return 0

  fi

  # This is to work around a bug in RPM 4.7.0. (see http://crbug.com/22312)

  rpm -q gpg-pubkey-7fac5991-45f06f46 > /dev/null 2>&1

  if [ "$?" -eq "0" ]; then

    # Key already exists

    return 0

  fi

​

  # RPM on Mandriva 2009 is dumb and does not understand "rpm --import -"

  TMPKEY=$(mktemp /tmp/google.sig.XXXXXX)

  if [ -n "$TMPKEY" ]; then

    cat > "$TMPKEY" <<KEYDATA

-----BEGIN PGP PUBLIC KEY BLOCK-----

Version: GnuPG v1.4.2.2 (GNU/Linux)

​

mQGiBEXwb0YRBADQva2NLpYXxgjNkbuP0LnPoEXruGmvi3XMIxjEUFuGNCP4Rj/a

kv2E5VixBP1vcQFDRJ+p1puh8NU0XERlhpyZrVMzzS/RdWdyXf7E5S8oqNXsoD1z

fvmI+i9b2EhHAA19Kgw7ifV8vMa4tkwslEmcTiwiw8lyUl28Wh4Et8SxzwCggDcA

feGqtn3PP5YAdD0km4S4XeMEAJjlrqPoPv2Gf//tfznY2UyS9PUqFCPLHgFLe80u

QhI2U5jt6jUKN4fHauvR6z3seSAsh1YyzyZCKxJFEKXCCqnrFSoh4WSJsbFNc4PN

b0V0SqiTCkWADZyLT5wll8sWuQ5ylTf3z1ENoHf+G3um3/wk/+xmEHvj9HCTBEXP

78X0A/0Tqlhc2RBnEf+AqxWvM8sk8LzJI/XGjwBvKfXe+l3rnSR2kEAvGzj5Sg0X

4XmfTg4Jl8BNjWyvm2Wmjfet41LPmYJKsux3g0b8yzQxeOA4pQKKAU3Z4+rgzGmf

HdwCG5MNT2A5XxD/eDd+L4fRx0HbFkIQoAi1J3YWQSiTk15fw7RMR29vZ2xlLCBJ

bmMuIExpbnV4IFBhY2thZ2UgU2lnbmluZyBLZXkgPGxpbnV4LXBhY2thZ2VzLWtl

eW1hc3RlckBnb29nbGUuY29tPohjBBMRAgAjAhsDBgsJCAcDAgQVAggDBBYCAwEC

HgECF4AFAkYVdn8CGQEACgkQoECDD3+sWZHKSgCfdq3HtNYJLv+XZleb6HN4zOcF

AJEAniSFbuv8V5FSHxeRimHx25671az+uQINBEXwb0sQCACuA8HT2nr+FM5y/kzI

A51ZcC46KFtIDgjQJ31Q3OrkYP8LbxOpKMRIzvOZrsjOlFmDVqitiVc7qj3lYp6U

rgNVaFv6Qu4bo2/ctjNHDDBdv6nufmusJUWq/9TwieepM/cwnXd+HMxu1XBKRVk9

XyAZ9SvfcW4EtxVgysI+XlptKFa5JCqFM3qJllVohMmr7lMwO8+sxTWTXqxsptJo

pZeKz+UBEEqPyw7CUIVYGC9ENEtIMFvAvPqnhj1GS96REMpry+5s9WKuLEaclWpd

K3krttbDlY1NaeQUCRvBYZ8iAG9YSLHUHMTuI2oea07Rh4dtIAqPwAX8xn36JAYG

2vgLAAMFB/wKqaycjWAZwIe98Yt0qHsdkpmIbarD9fGiA6kfkK/UxjL/k7tmS4Vm

CljrrDZkPSQ/19mpdRcGXtb0NI9+nyM5trweTvtPw+HPkDiJlTaiCcx+izg79Fj9

KcofuNb3lPdXZb9tzf5oDnmm/B+4vkeTuEZJ//IFty8cmvCpzvY+DAz1Vo9rA+Zn

cpWY1n6z6oSS9AsyT/IFlWWBZZ17SpMHu+h4Bxy62+AbPHKGSujEGQhWq8ZRoJAT

G0KSObnmZ7FwFWu1e9XFoUCt0bSjiJWTIyaObMrWu/LvJ3e9I87HseSJStfw6fki

5og9qFEkMrIrBCp3QGuQWBq/rTdMuwNFiEkEGBECAAkFAkXwb0sCGwwACgkQoECD

D3+sWZF/WACfeNAu1/1hwZtUo1bR+MWiCjpvHtwAnA1R3IHqFLQ2X3xJ40XPuAyY

/FJG

=Quqp

-----END PGP PUBLIC KEY BLOCK-----

KEYDATA

    rpm --import "$TMPKEY"

    rc=$?

    rm -f "$TMPKEY"

    if [ "$rc" -eq "0" ]; then

      return 0

    fi

  fi

  return 1

}

​

determine_rpm_package_manager() {

  local RELEASE

  LSB_RELEASE="$(which lsb_release 2> /dev/null)"

  if [ -x "$LSB_RELEASE" ]; then

    RELEASE=$(lsb_release -i 2> /dev/null)

    case $DISTRIB_ID in

    "Fedora")

      PACKAGEMANAGER=yum

      ;;

    "MandrivaLinux")

      PACKAGEMANAGER=urpmi

      ;;

    "SUSE LINUX")

      PACKAGEMANAGER=yast

      ;;

    esac

  fi

​

  if [ "$PACKAGEMANAGER" ]; then

    return

  fi

​

  # Fallback methods that are probably unnecessary on modern systems.

  if [ -f "/etc/lsb-release" ]; then

    # file missing on Fedora, does not contain DISTRIB_ID on OpenSUSE.

    eval $(sed -e '/DISTRIB_ID/!d' /etc/lsb-release)

    case $DISTRIB_ID in

    MandrivaLinux)

      PACKAGEMANAGER=urpmi

      ;;

    esac

  fi

​

  if [ "$PACKAGEMANAGER" ]; then

    return

  fi

​

  if [ -f "/etc/fedora-release" ] || [ -f "/etc/redhat-release" ]; then

    PACKAGEMANAGER=yum

  elif [ -f "/etc/SuSE-release" ]; then

    PACKAGEMANAGER=yast

  elif [ -f "/etc/mandriva-release" ]; then

    PACKAGEMANAGER=urpmi

  fi

}

​

DEFAULT_ARCH="i386"

YUM_REPO_FILE="/etc/yum.repos.d/mod-pagespeed.repo"

ZYPPER_REPO_FILE="/etc/zypp/repos.d/mod-pagespeed.repo"

URPMI_REPO_FILE="/etc/urpmi/urpmi.cfg"

​

install_yum() {

  install_rpm_key

​

  if [ ! "$REPOCONFIG" ]; then

    return 0

  fi

​

  if [ -d "/etc/yum.repos.d" ]; then

cat > "$YUM_REPO_FILE" << REPOCONTENT

[mod-pagespeed]

name=mod-pagespeed

baseurl=$REPOCONFIG/$DEFAULT_ARCH

enabled=1

gpgcheck=1

REPOCONTENT

  fi

}

​

# This is called by the cron job, rather than in the RPM postinstall.

# We cannot do this during the install when urpmi is running due to

# database locking. We also need to enable the repository, and we can

# only do that while we are online.

# see: https://qa.mandriva.com/show_bug.cgi?id=31893

configure_urpmi() {

  if [ ! "$REPOCONFIG" ]; then

    return 0

  fi

​

  urpmq --list-media | grep -q -s "^mod-pagespeed$"

  if [ "$?" -eq "0" ]; then

    # Repository already configured

    return 0

  fi

  urpmi.addmedia --update \

    "mod-pagespeed" "$REPOCONFIG/$DEFAULT_ARCH"

}

​

install_urpmi() {

  # urpmi not smart enough to pull media_info/pubkey from the repository?

  install_rpm_key

​

  # Defer urpmi.addmedia to configure_urpmi() in the cron job.

  # See comment there.

  #

  # urpmi.addmedia --update \

  #   "mod-pagespeed" "$REPOCONFIG/$DEFAULT_ARCH"

}

​

install_yast() {

  if [ ! "$REPOCONFIG" ]; then

    return 0

  fi

​

  # We defer adding the key to later. See comment in the cron job.

​

  # Ideally, we would run: zypper addrepo -t YUM -f \

  # "$REPOCONFIG/$DEFAULT_ARCH" "mod-pagespeed"

  # but that does not work when zypper is running.

  if [ -d "/etc/zypp/repos.d" ]; then

cat > "$ZYPPER_REPO_FILE" << REPOCONTENT

[mod-pagespeed]

name=mod-pagespeed

enabled=1

autorefresh=1

baseurl=$REPOCONFIG/$DEFAULT_ARCH

type=rpm-md

keeppackages=0

REPOCONTENT

  fi

}

​

# Check if the automatic repository configuration is done, so we know when to

# stop trying.

verify_install() {

  # It's probably enough to see that the repo configs have been created. If they

  # aren't configured properly, update_bad_repo should catch that when it's run.

  case $1 in

  "yum")

    [ -f "$YUM_REPO_FILE" ]

    ;;

  "yast")

    [ -f "$ZYPPER_REPO_FILE" ]

    ;;

  "urpmi")

    urpmq --list-url | grep -q -s "\bmod-pagespeed\b"

    ;;

  esac

}

​

# Update the Google repository if it's not set correctly.

update_bad_repo() {

  if [ ! "$REPOCONFIG" ]; then

    return 0

  fi

​

  determine_rpm_package_manager

​

  case $PACKAGEMANAGER in

  "yum")

    update_repo_file "$YUM_REPO_FILE"

    ;;

  "yast")

    update_repo_file "$ZYPPER_REPO_FILE"

    ;;

  "urpmi")

    update_urpmi_cfg

    ;;

  esac

}

​

update_repo_file() {

  REPO_FILE="$1"

​

  # Don't do anything if the file isn't there, since that probably means the

  # user disabled it.

  if [ ! -r "$REPO_FILE" ]; then

    return 0

  fi

​

  # Check if the correct repository configuration is in there.

  REPOMATCH=$(grep "^baseurl=$REPOCONFIG/$DEFAULT_ARCH" "$REPO_FILE" \

    2>/dev/null)

  # If it's there, nothing to do

  if [ "$REPOMATCH" ]; then

    return 0

  fi

​

  # Check if it's there but disabled by commenting out (as opposed to using the

  # 'enabled' setting).

  MATCH_DISABLED=$(grep "^[[:space:]]*#.*baseurl=$REPOCONFIG/$DEFAULT_ARCH" \

    "$REPO_FILE" 2>/dev/null)

  if [ "$MATCH_DISABLED" ]; then

    # It's OK for it to be disabled, as long as nothing bogus is enabled in its

    # place.

    ACTIVECONFIGS=$(grep "^baseurl=.*" "$REPO_FILE" 2>/dev/null)

    if [ ! "$ACTIVECONFIGS" ]; then

      return 0

    fi

  fi

​

  # If we get here, the correct repository wasn't found, or something else is

  # active, so fix it. This assumes there is a 'baseurl' setting, but if not,

  # then that's just another way of disabling, so we won't try to add it.

  sed -i -e "s,^baseurl=.*,baseurl=$REPOCONFIG/$DEFAULT_ARCH," "$REPO_FILE"

}

​

update_urpmi_cfg() {

  REPOCFG=$(urpmq --list-url | grep "\bmod-pagespeed\b")

  if [ ! "$REPOCFG" ]; then

    # Don't do anything if the repo isn't there, since that probably means the

    # user deleted it.

    return 0

  fi

​

  # See if it's the right repo URL

  REPOMATCH=$(echo "$REPOCFG" | grep "\b$REPOCONFIG/$DEFAULT_ARCH\b")

  # If so, nothing to do

  if [ "$REPOMATCH" ]; then

    return 0

  fi

​

  # Looks like it's the wrong URL, so recreate it.

  urpmi.removemedia "mod-pagespeed" && \

    urpmi.addmedia --update "mod-pagespeed" "$REPOCONFIG/$DEFAULT_ARCH"

}

​

# We only remove the repository configuration during a purge. Since RPM has

# no equivalent to dpkg --purge, the code below is actually never used. We

# keep it only for reference purposes, should we ever need it.

#

#remove_yum() {

#  rm -f "$YUM_REPO_FILE"

#}

#

#remove_urpmi() {

#  # Ideally, we would run: urpmi.removemedia "mod-pagespeed"

#  # but that does not work when urpmi is running.

#  # Sentinel comment text does not work either because urpmi.update removes

#  # all comments. So we just delete the entry that matches what we originally

#  # inserted. If such an entry was added manually, that's tough luck.

#  if [ -f "$URPMI_REPO_FILE" ]; then

#    sed -i '\_^mod-pagespeed $REPOCONFIG/$DEFAULT_ARCH {$_,/^}$/d' "$URPMI_REPO_FILE"

#  fi

#}

#

#remove_yast() {

#  # Ideally, we would run: zypper removerepo "mod-pagespeed"

#  # but that does not work when zypper is running.

#  rm -f /etc/zypp/repos.d/mod-pagespeed.repo

#}

​

## MAIN ##

DEFAULTS_FILE="/etc/default/mod-pagespeed"

if [ -r "$DEFAULTS_FILE" ]; then

  . "$DEFAULTS_FILE"

fi

​

if [ "$repo_add_once" = "true" ]; then

  determine_rpm_package_manager

​

  case $PACKAGEMANAGER in

  "urpmi")

    # We need to configure urpmi after the install has finished.

    # See configure_urpmi() for details.

    configure_urpmi

    ;;

  "yast")

    # It looks as though yast/zypper has a lock on the RPM DB during

    # postinstall, so we cannot add the signing key with install_rpm_key().

    # Instead, we attempt to do this here. If the user attempt to update before

    # the cron job imports the key, Yast will grab the key from our server and

    # prompt the user to accept the key.

    install_rpm_key

    ;;

  esac

​

  if [ $? -eq 0 ]; then

    # Before we quit auto-configuration, check that everything looks sane, since

    # part of this happened during package install and we don't have the return

    # value of that process.

    verify_install $PACKAGEMANAGER

    if [ $? -eq 0 ]; then

      sed -i -e 's/[[:space:]]*repo_add_once=.*/repo_add_once="false"/' \

        "$DEFAULTS_FILE"

    fi

  fi

else

  update_bad_repo

fi

​