postinst is in apache2 2.4.10-10+deb8u12.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 | #! /bin/bash
# postinst script
#
# see: dh_installdeb(1)
set -e
# summary of how this script can be called:
# * <postinst> `configure' <most-recently-configured-version>
# * <old-postinst> `abort-upgrade' <new version>
# * <conflictor's-postinst> `abort-remove' `in-favour' <package>
# <new-version>
# * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
# <failed-install-package> <version> `removing'
# <conflicting-package> <version>
#
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package
#
# XXX remove
# echo apache2.postinst $@ running
OBSOLETE_CONFFILES="/etc/apache2/mods-available/authz_default.load
/etc/apache2/mods-available/authn_default.load
/etc/apache2/mods-available/mem_cache.load
/etc/apache2/mods-available/mem_cache.conf
/etc/apache2/mods-available/authn_alias.load
/etc/apache2/mods-available/cern_meta.load
/etc/apache2/mods-available/disk_cache.load
/etc/apache2/mods-available/disk_cache.conf
/etc/apache2/mods-available/imagemap.load
/etc/apache2/mods-available/version.load"
MOVED_CONFFILES="/etc/bash_completion.d/apache2.2-common:/etc/bash_completion.d/apache2
/etc/apache2/sites-available/default:/etc/apache2/sites-available/000-default.conf
/etc/apache2/sites-available/default-ssl:/etc/apache2/sites-available/default-ssl.conf
/etc/apache2/conf.d/charset:/etc/apache2/conf-available/charset.conf
/etc/apache2/conf.d/localized-error-pages:/etc/apache2/conf-available/localized-error-pages.conf
/etc/apache2/conf.d/other-vhosts-access-log:/etc/apache2/conf-available/other-vhosts-access-log.conf
/etc/apache2/conf.d/security:/etc/apache2/conf-available/security.conf"
# the functions below need to be idempotent, however we guess the upgrade based
# on obsolete conffiles which might be removed anytime. Thus, remember we were
# already in there once.
WHEEZY_UPGRADE=0
# n.b you can't rely on $2 (the last installed version) for upgrades, as
# the user might have been using apache2.2-common only. Let's pretend we're
# upgrading if there is either a /etc/apache2/.apache2_mpm_selected file
# around or an /etc/apache2/.apache2_upgrade file exists.
we_are_upgrading_from_wheezy()
{
if [ -n "$2" ] && dpkg --compare-versions "$2" le-nl "2.3"; then
WHEEZY_UPGRADE=1
return 0
fi
# this check is a probably tautology but makes it easier to understand
# the logic
if [ -n "$2" ] && dpkg --compare-versions "$2" ge-nl "2.3"; then
return 1
fi
if [ -e /etc/apache2/.apache2_mpm_selected ] ; then
WHEEZY_UPGRADE=1
return 0
fi
if [ "$WHEEZY_UPGRADE" -eq 1 ] ; then
return 0
fi
for CONFFILE in $OBSOLETE_CONFFILES ; do
if [ -e "$CONFFILE.dpkg-backup" ] || [ -e "$CONFFILE.dpkg-remove" ] ; then
WHEEZY_UPGRADE=1
return 0
fi
done
for CONFFILE in $MOVED_CONFFILES ; do
OLDCONFFILE=$( echo "$CONFFILE" | cut -d: -f1 )
if [ -e "$OLDCONFFILE.dpkg-remove" ] ; then
WHEEZY_UPGRADE=1
return 0
fi
done
return 1
}
is_fresh_install()
{
if [ -z "$2" ] ; then
return 0
fi
return 1
}
# The two functions below are licensed GPL-2+ and was written by dpkg maintainers
# See the dpkg-maintscript-helper script for details
remove_conffiles()
{
# we can't use dpkg-maintscript-helper as we shifted conffiles from the
# apache2.2-common package to apache2, too. The tool can cope with
# that, but additionally we didn't require apache2 to be installed. This
# yields the wrong result when upgrading such an installation
if we_are_upgrading_from_wheezy $@ ; then
for CONFFILE in $OBSOLETE_CONFFILES ; do
if [ -e "$CONFFILE.dpkg-backup" ]; then
mv -f "$CONFFILE.dpkg-backup" "$CONFFILE.dpkg-bak"
fi
if [ -e "$CONFFILE.dpkg-remove" ]; then
echo "Removing obsolete conffile $CONFFILE ..."
rm -f "$CONFFILE.dpkg-remove"
fi
done
fi
}
mv_conffiles()
{
# same rationale as above
if we_are_upgrading_from_wheezy $@ ; then
for CONFFILE in $MOVED_CONFFILES ; do
OLDCONFFILE=$( echo "$CONFFILE" | cut -d: -f1 )
NEWCONFFILE=$( echo "$CONFFILE" | cut -d: -f2 )
rm -f $OLDCONFFILE.dpkg-remove
[ -e "$OLDCONFFILE" ] || continue
echo "Preserving user changes to $NEWCONFFILE (renamed from $OLDCONFFILE)..."
mv -f "$NEWCONFFILE" "$NEWCONFFILE.dpkg-new"
mv -f "$OLDCONFFILE" "$NEWCONFFILE"
done
if [ -d /etc/apache2/conf.d ] && [ ! "$(ls -A /etc/apache2/conf.d)" ] ; then
echo "Removing obsolete directory /etc/apache2/conf.d"
rmdir /etc/apache2/conf.d
fi
if [ -d /etc/apache2/conf.d ] && [ "$(ls -A /etc/apache2/conf.d)" ] ; then
echo "Directory /etc/apache2/conf.d is not empty - leaving as is"
echo "Please note, that directory is considered obsolete and not read anymore by default"
# XXX order of processing??? this may become empty later on (after upgrade of apache2-doc)
ls -A /etc/apache2/conf.d
fi
fi
}
enable_default_mpm()
{
mpm="mpm_event"
if we_are_upgrading_from_wheezy $@ && [ -e /etc/apache2/.apache2_mpm_selected ]; then
tmpmpm=$(grep -v "^#" /etc/apache2/.apache2_mpm_selected | head -n1)
case "$tmpmpm" in
apache2-mpm-worker)
mpm="mpm_worker"
;;
apache2-mpm-event)
mpm="mpm_event"
;;
apache2-mpm-prefork)
mpm="mpm_prefork"
;;
apache2-mpm-itk)
# apache2-mpm-itk is installed, which is a
# transitional package depending on
# libapache2-mpm-itk which will enable itself
# in its maintainer scripts.
mpm="mpm_prefork"
;;
*)
# default MPM for upgrading in case we got an unrecognized
# hint file
mpm="mpm_event"
;;
esac
# No -m here, we pretend the user picked the MPM as this choice comes
# from a 2.2 package relation
a2enmod -q $mpm
return 0
fi
if is_fresh_install $@ ; then
a2enmod -m -q $mpm
fi
}
enable_default_modules()
{
if is_fresh_install $@; then
for module in authz_host auth_basic access_compat authn_file authz_user \
alias dir autoindex \
env mime negotiation setenvif \
filter deflate \
status reqtimeout ; do
a2enmod -m -q $module
done
elif we_are_upgrading_from_wheezy $@; then
for module in authn_core authz_core filter access_compat ; do
a2enmod -m -q $module
done
elif dpkg --compare-versions "$2" "le" "2.4.6-1~" ; then
# These modules had dependencies missing in the initial 2.4 upload
for module in auth_basic auth_digest auth_form cache_disk include ratelimit mpm_event
do
if [ -e /etc/apache2/mods-enabled/$module.load ] ; then
# If module is enabled, enable again to
# enable new dependencies
a2enmod -m -q $module
fi
done
fi
if [ -z "$2" ] ; then
return 0
fi
# mod_reqtimeout activation was missed since jessie
if dpkg --compare-versions "$2" lt "2.4.10-10+deb8u8"
then
a2enmod -m -q reqtimeout
fi
}
enable_default_conf()
{
if is_fresh_install $@ || we_are_upgrading_from_wheezy $@ ; then
for conf in charset localized-error-pages other-vhosts-access-log security ; do
a2enconf -m -q $conf
done
fi
# This line must catch upgrades, upgrades from Wheezy und fresh
# installs
if dpkg --compare-versions "$2" "le" "2.4.1-4" ; then
a2enconf -m -q serve-cgi-bin
fi
}
install_default_site()
{
if we_are_upgrading_from_wheezy $@ ; then
# by here, the old default sites were already renamed. Thus, the links
# are dangling
for SITE in /etc/apache2/sites-enabled/000-default /etc/apache2/sites-enabled/default-ssl ; do
if [ -L $SITE ] ; then
target=$(readlink -e "$SITE") || true
sitename=$(basename "$SITE")
if [ -z "$target" ] ; then
rm -f $SITE
a2ensite -q "$sitename"
fi
fi
done
elif is_fresh_install $@ ; then
if [ ! -L /etc/apache2/sites-enabled/000-default.conf -a \
! -f /etc/apache2/sites-enabled/000-default.conf ]; then
a2ensite -q 000-default
fi
touch /var/log/apache2/error.log /var/log/apache2/access.log
chown root:adm /var/log/apache2/error.log /var/log/apache2/access.log
chmod 0640 /var/log/apache2/error.log /var/log/apache2/access.log
touch /var/log/apache2/other_vhosts_access.log
chown root:adm /var/log/apache2/other_vhosts_access.log
chmod 0640 /var/log/apache2/other_vhosts_access.log
fi
}
is_problematic_index_html () {
local FILE="$1"
[ -f "$FILE" ] || return 1
local MD5=$(md5sum "$FILE" 2> /dev/null |cut -d' ' -f 1)
[ -n "$MD5" ] || return 1
grep -q "$MD5" <<- EOF
1736dfc80cf1f5a8966c096a0b094377
776221a94e5a174dc2396c0f3f6b6a74
51a41c3207374dad24ec64a0f2646bdc
c481228d439cbb54bdcedbaec5bbb11a
3183a3d71d86bcc88aaf3ca5cbbefb45
74cec59a19e5d16f7cc6a2445e35fa3b
EOF
}
# XXX: This site is installed in the apache2-data package. Should the postinst
# scriptlet move there too?
install_default_files()
{
if is_fresh_install $@ || we_are_upgrading_from_wheezy $@ ; then
local do_copy=true
local dir ext
for dir in /var/www /var/www/html ; do
for ext in html cgi pl php xhtml htm ; do
if [ -e $dir/index.$ext ] ; then
do_copy=false
break 2
fi
done
if [ -h $dir/index.html ] ; then
do_copy=false
break
fi
done
if $do_copy ; then
cp /usr/share/apache2/default-site/index.html /var/www/html/index.html
fi
else
# see #821313
for dir in /var/www /var/www/html ; do
local file=$dir/index.html
if is_problematic_index_html $file ; then
cp /usr/share/apache2/default-site/index.html $file
fi
done
fi
}
# XXX: Find out whether I am on crack removing stale modules that way
refresh_modules()
{
if we_are_upgrading_from_wheezy $@ && [ -d /etc/apache2/mods-enabled/ ] ; then
shopt -s nullglob
for link in /etc/apache2/mods-enabled/*.load ; do
target=$(readlink "$link") || true
if [ -z "$target" ] ; then
continue
fi
module=$(basename "$link" | sed 's/\.load//') || true
if [ ! -e "/etc/apache2/mods-enabled/$target" ] ; then
echo "disable obsolete module $module"
a2dismod -m -q "$module"
if [ "$module" = "disk_cache" ] ; then
echo "Enable cache_disk as disk_cache was enabled in Apache 2.2"
# ditto, we pretend it was the user's
# choice not to use -m here
a2enmod -q cache_disk
fi
fi
# the module is already enabled, however
# dependencies could have changed hence re-call
# a2enmod again.
# Example: the deflate module when upgraded from
# Wheezy
if [ -e "/etc/apache2/mods-enabled/$target" ] ; then
a2enmod -m -q "$module"
fi
done
fi
}
move_httpd_conf()
{
if we_are_upgrading_from_wheezy $@ ; then
if [ -e /etc/apache2/httpd.conf ] && [ -f /etc/apache2/httpd.conf ] ; then
local md5sum="$(md5sum /etc/apache2/httpd.conf | sed -e 's/ .*//')"
if [ $md5sum = "d41d8cd98f00b204e9800998ecf8427e" ] ||
[ $md5sum = "a20c3e53dd07836481a5e64bc71e1a33" ]
then
echo "Remove obsolete configuration file /etc/apache2/httpd.conf"
rm -f /etc/apache2/httpd.conf
else
if [ -d /etc/apache2/conf-available/ ] && [ ! -f /etc/apache2/conf-available/httpd.conf ] ; then
echo "Detected legacy httpd.conf - moving file to /etc/apache2/conf-available/httpd.conf"
mv /etc/apache2/httpd.conf /etc/apache2/conf-available/httpd.conf
a2enconf -q httpd
fi
fi
fi
fi
}
migrate_data()
{
#XXX: jimjag recommends purging the cache albeit it is probably not
# technically required.
#if we_are_upgrading_from_wheezy $@ ; then
# # /var/cache/apache2/mod_disk_cache -> /var/cache/apache2/mod_cache_disk
# if [ -d /var/cache/apache2/mod_disk_cache ] && [ "$(ls -A /var/cache/apache2/mod_disk_cache)" ] ; then
# echo "Migrate mod_disk_cache cache data to /var/cache/apache2/mod_cache_disk/"
# mv /var/cache/apache2/mod_disk_cache/* /var/cache/apache2/mod_cache_disk/
# rmdir /var/cache/apache2/mod_disk_cache
# fi
#fi
if we_are_upgrading_from_wheezy $@ ; then
if [ -d /var/cache/apache2/mod_disk_cache ] ; then
echo "Purge obsolete mod_disk_cache cache data in /var/cache/apache2/mod_cache_disk/"
rm -rf /var/cache/apache2/mod_disk_cache
fi
fi
}
warn_itk_users()
{
# the function below only applies to Debian Testing users. Stable users are properly upgraded
if [ -n "$2" ] && dpkg --compare-versions "$2" 'lt' '2.4.7-1~' && dpkg --compare-versions "$2" 'ge' '2.4.1-1' ; then
local mpm=""
[ -e /etc/apache2/.apache2_mpm_selected ] && mpm=$(grep -v "^#" /etc/apache2/.apache2_mpm_selected | head -n1)
if [ "$mpm" = 'apache2-mpm-itk' ] ; then
echo "======================================================================="
echo "You appear to be using the ITK MPM. Starting with Apache2 2.4.7-1 this"
echo "is a separate package not bundled with Apache anymore. Moreover, it is"
echo "not a MPM anymore. This upgrade will switch your MPM to 'prefork'. If"
echo "you plan to use ITK in future, please do: "
echo ""
echo " apt-get install libapache2-mpm-itk"
echo ""
echo "======================================================================="
fi
fi
}
msg ()
{
local PRIORITY="$1"
local MSG="$2"
echo "$PRIORITY: $MSG"
if type logger > /dev/null 2>&1 ; then
logger -p daemon.$PRIORITY -t apache2.postinst "$MSG" || true
fi
}
execute_deferred_actions ()
{
if [ ! -e /var/lib/apache2/deferred_actions ]; then
return 0
fi
local error=false
cat /var/lib/apache2/deferred_actions |
while read PACKAGE FUNCTION ARG1 ARG2 ARG3
do
if ! dpkg-query -f '${Status}' -W "$PACKAGE"|grep -q installed ; then
# If the package has been removed again, skip the actions
continue
fi
case "$FUNCTION" in
apache2_invoke)
case "$ARG1" in
enmod|dismod|enconf|disconf|ensite|dissite)
# We can ignore reload/restart in ARG3 because apache2 has not
# been started, yet.
msg "info" "Executing deferred 'a2$ARG1 $ARG2' for package $PACKAGE"
a2$ARG1 -m -q "$ARG2"
;;
*)
msg "error" "'apache2_invoke $ARG1' in /var/lib/apache2/deferred_actions invalid"
error=true
esac
;;
apache2_switch_mpm)
local MPM="$ARG1"
local CUR_MPM="$(ls /etc/apache2/mods-enabled/mpm_*.load | grep -e event -e prefork -e worker)"
CUR_MPM="${CUR_MPM##*/mpm_}"
CUR_MPM="${CUR_MPM%.load}"
if [ ! -e /etc/apache2/mods-available/mpm_$MPM.load ] ; then
msg "error" "mpm $MPM not found in 'apache2_switch_mpm $ARG1' for package $PACKAGE"
error=true
elif [ -e /etc/apache2/mods-enabled/mpm_$MPM.load ] ; then
msg "info" "Switch to mpm $MPM for package $PACKAGE: No action required"
else
msg "info" "Switch to mpm $MPM for package $PACKAGE"
if ! a2dismod -m -q "mpm_$CUR_MPM" ||
! a2enmod -m -q "mpm_$MPM"
then
msg "error" "Switching to mpm $MPM failed"
error=true
fi
fi
;;
*)
msg "ERROR: function '$FUNCTION' in /var/lib/apache2/deferred_actions invalid"
;;
esac
done
if $error ; then
msg "error" "Some deferred actions failed. You will need to fix the configuration manually."
fi
rm /var/lib/apache2/deferred_actions
}
#XXX: Deal with the sites-available/sites-enabled *.conf transition, e.g. rename
# all files which look like site configuration?
case "$1" in
configure)
remove_conffiles $@
mv_conffiles $@
enable_default_mpm $@
refresh_modules $@
install_default_files $@
enable_default_modules $@
enable_default_conf $@
install_default_site $@
move_httpd_conf $@
migrate_data $@
warn_itk_users $@
execute_deferred_actions
# post installation cleanup
if [ -e /etc/apache2/.apache2_mpm_selected ] ; then
rm -f /etc/apache2/.apache2_mpm_selected
fi
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
# Automatically added by dh_installinit
if [ -x "/etc/init.d/apache2" ]; then
update-rc.d apache2 defaults 91 09 >/dev/null
if [ -n "$2" ]; then
_dh_action=restart
else
_dh_action=start
fi
invoke-rc.d apache2 $_dh_action || true
fi
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper symlink_to_dir /usr/share/doc/apache2 apache2.2-common 2.4.1-1~ -- "$@"
# End automatically added section
# And now the traditional insanity of apache2 upgrades (see #390823):
# If everything went well, we need to purge apache2.2-common's postrm, or
# purging that package will remove our logs, caches, ...
if [ "$1" = configure ] && we_are_upgrading_from_wheezy $@ ; then
oldpostrm=$(dpkg-query -c apache2.2-common postrm 2>/dev/null || true)
if [ -n "$oldpostrm" ] ; then
rm -f "$oldpostrm"
fi
fi
exit 0
# vim: syntax=sh ts=4 sw=4 sts=4 sr noet
|