summaryrefslogtreecommitdiffstats
path: root/debian/apache2.postinst
blob: a980441f3b3dfc922a13dd366f242fb54bbd143d (plain)
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
#! /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
#

is_fresh_install()
{
	if [ -z "$2" ] ; then
		return 0
	fi
	return 1
}


enable_default_mpm()
{
	if is_fresh_install $@ ; then
		a2enmod -m -q mpm_event
	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
	fi
	if [ -z "$2" ] ; then
		return 0
	fi
}

enable_default_conf()
{
	if is_fresh_install $@ ; then
		for conf in charset localized-error-pages other-vhosts-access-log \
				security serve-cgi-bin ; do
			a2enconf -m -q $conf
		done
	fi
}

install_default_site()
{
	if 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 $@ ; 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
}

start_htcacheclean ()
{
	local action
	if [ -x "/etc/init.d/apache-htcacheclean" ]; then
		if [ -n "$2" ]; then
			action=restart
		else
			action=start
		fi
		invoke-rc.d apache-htcacheclean $action || true
	fi
}

disable_htcacheclean()
{
	if deb-systemd-helper debian-installed apache-htcacheclean.service; then
		deb-systemd-helper disable apache-htcacheclean.service >/dev/null || true
	fi
	update-rc.d apache-htcacheclean disable >/dev/null
}

# The apache-htcacheclean service is disabled by default. Can't use
# debhelper. The update-rc.d 'disable' call must come after the 'defaults'
# call, or the former will fail.
handle_htcacheclean ()
{
       if dpkg --compare-versions "$2" lt "2.4.18-2~"; then
	       # Disable on initial installation or when upgrading from an old
	       # version without that init script and with the module disabled
	       # (or when configured to run from cron)
	       if [ ! -e "/etc/apache2/mods-enabled/cache_disk.load" ]; then
		       disable_htcacheclean
		       return
	       elif (. /etc/default/apache-htcacheclean && [ "$HTCACHECLEAN_MODE" = "cron" ]); then
		       disable_htcacheclean
		       return
	       fi
	fi

	# Restart it if applicable
	start_htcacheclean "$@"
}

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"|egrep -q 'installed|triggers-awaited|triggers-pending' ; 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
}

list_fixup_conffiles () {
	cat <<- EOF
		/etc/bash_completion.d/apache2
		/etc/apache2/sites-available/000-default.conf
		/etc/apache2/sites-available/default-ssl.conf
		/etc/apache2/conf-available/charset.conf
		/etc/apache2/conf-available/localized-error-pages.conf
		/etc/apache2/conf-available/other-vhosts-access-log.conf
		/etc/apache2/conf-available/security.conf
		EOF
}

case "$1" in
	configure)

		enable_default_mpm $@
		install_default_files $@
		enable_default_modules $@
		enable_default_conf $@
		install_default_site $@
		execute_deferred_actions

	;;

	abort-upgrade)

	;;

	abort-remove|abort-deconfigure)

	;;

	*)
		echo "postinst called with unknown argument \`$1'" >&2
		exit 1
	;;
esac

#DEBHELPER#

# Deal with htcacheclean after debhelper's initial init script handling
case "$1" in
	configure)
		handle_htcacheclean $@
	;;
	abort-upgrade)
		start_htcacheclean $@
	;;
esac

exit 0