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1# Copyright 1999-2003 Gentoo Technologies, Inc. 1# Copyright 1999-2006 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/webapp.eclass,v 1.1 2003/10/07 21:54:46 stuart Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/webapp.eclass,v 1.56 2008/02/22 14:44:16 hollow Exp $
4# 4#
5# eclass/webapp.eclass 5# @ECLASS: webapp.eclass
6# @MAINTAINER:
7# web-apps@gentoo.org
6# Eclass for installing applications to run under a web server 8# @BLURB: functions for installing applications to run under a web server
7# 9# @DESCRIPTION:
10# The webapp eclass contains functions to handle web applications with
8# Part of the implementation of GLEP #11 11# webapp-config. Part of the implementation of GLEP #11
9#
10# Author(s) Stuart Herbert <stuart@gentoo.org>
11#
12# ------------------------------------------------------------------------
13#
14# Please do not make modifications to this file without checking with a
15# member of the web-apps herd first!
16#
17# ------------------------------------------------------------------------
18#
19# THIS IS A BETA RELEASE ONLY. ALL DETAILS ARE SUBJECT TO CHANGE BEFORE
20# WE ARE READY TO START PORTING EVERYTHING TO THIS ECLASS
21#
22# ------------------------------------------------------------------------
23 12
24ECLASS=webapp
25INHERITED="$INHERITED $ECLASS"
26#DEPEND="${DEPEND} net-www/apache"
27SLOT="${PVR}" 13SLOT="${PVR}"
28IUSE="$IUSE vhosts" 14IUSE="vhosts"
15DEPEND=">=app-admin/webapp-config-1.50.15"
16RDEPEND="${DEPEND}"
29 17
30if [ -f /usr/share/webapp-config/settings.sh ] ; then 18EXPORT_FUNCTIONS pkg_postinst pkg_setup src_install pkg_prerm
31 . /usr/share/webapp-config/settings.sh 19
20INSTALL_DIR="/${PN}"
21IS_UPGRADE=0
22IS_REPLACE=0
23
24INSTALL_CHECK_FILE="installed_by_webapp_eclass"
25
26ETC_CONFIG="${ROOT}etc/vhosts/webapp-config"
27WEBAPP_CONFIG="${ROOT}usr/sbin/webapp-config"
28WEBAPP_CLEANER="${ROOT}usr/sbin/webapp-cleaner"
29
30# ==============================================================================
31# INTERNAL FUNCTIONS
32# ==============================================================================
33
34# Load the config file /etc/vhosts/webapp-config
35# Supports both the old bash version, and the new python version
36webapp_read_config() {
37 debug-print-function $FUNCNAME $*
38
39 if has_version '>=app-admin/webapp-config-1.50'; then
40 ENVVAR=$(${WEBAPP_CONFIG} --query ${PN} ${PVR}) || die "Could not read settings from webapp-config!"
41 eval ${ENVVAR}
42 else
43 . ${ETC_CONFIG} || die "Unable to read ${ETC_CONFIG}"
32fi 44 fi
45}
33 46
34EXPORT_FUNCTIONS pkg_setup src_install
35
36# ------------------------------------------------------------------------
37# INTERNAL FUNCTION - USED BY THIS ECLASS ONLY
38#
39# Check whether a specified file exists within the image/ directory 47# Check whether a specified file exists in the given directory (`.' by default)
40# or not.
41#
42# @param $1 - file to look for
43# @return 0 on success, never returns on an error
44# ------------------------------------------------------------------------
45
46function webapp_checkfileexists () 48webapp_checkfileexists() {
47{ 49 debug-print-function $FUNCNAME $*
48 if [ ! -e ${D}/$1 ]; then 50
51 local my_prefix=${2:+${2}/}
52
53 if [[ ! -e "${my_prefix}${1}" ]]; then
49 msg="ebuild fault: file $1 not found in ${D}" 54 msg="ebuild fault: file '${1}' not found"
50 eerror "$msg" 55 eerror "$msg"
51 eerror "Please report this as a bug at http://bugs.gentoo.org/" 56 eerror "Please report this as a bug at http://bugs.gentoo.org/"
52 die "$msg" 57 die "$msg"
53 fi 58 fi
54} 59}
55 60
56# ------------------------------------------------------------------------ 61webapp_check_installedat() {
57# EXPORTED FUNCTION - FOR USE IN EBUILDS 62 debug-print-function $FUNCNAME $*
63 ${WEBAPP_CONFIG} --show-installed -h localhost -d "${INSTALL_DIR}" 2> /dev/null
64}
65
66webapp_strip_appdir() {
67 debug-print-function $FUNCNAME $*
68 echo "${1#${MY_APPDIR}/}"
69}
70
71webapp_strip_d() {
72 debug-print-function $FUNCNAME $*
73 echo "${1#${D}}"
74}
75
76webapp_strip_cwd() {
77 debug-print-function $FUNCNAME $*
78 echo "${1/#.\///}"
79}
80
81webapp_getinstalltype() {
82 debug-print-function $FUNCNAME $*
83 use vhosts && return
84
85 local my_output
86 my_output="$(webapp_check_installedat)"
87
88 if [[ $? -eq 0 ]]; then
89 # something is already installed there
90 # make sure it isn't the same version
91
92 local my_pn="$(echo ${my_output} | awk '{ print $1 }')"
93 local my_pvr="$(echo ${my_output} | awk '{ print $2 }')"
94
95 REMOVE_PKG="${my_pn}-${my_pvr}"
96
97 if [[ "${my_pn}" == "${PN}" ]]; then
98 if [[ "${my_pvr}" != "${PVR}" ]]; then
99 elog "This is an upgrade"
100 IS_UPGRADE=1
101 else
102 elog "This is a re-installation"
103 IS_REPLACE=1
104 fi
105 else
106 elog "${my_output} is installed there"
107 fi
108 else
109 elog "This is an installation"
110 fi
111}
112
113# ==============================================================================
114# PUBLIC FUNCTIONS
115# ==============================================================================
116
117# @FUNCTION: webapp_configfile
118# @USAGE: <file> [more files ...]
119# @DESCRIPTION:
120# Mark a file config-protected for a web-based application.
121webapp_configfile() {
122 debug-print-function $FUNCNAME $*
123
124 local m
125 for m in "$@"; do
126 webapp_checkfileexists "${m}" "${D}"
127
128 local my_file="$(webapp_strip_appdir "${m}")"
129 my_file="$(webapp_strip_cwd "${my_file}")"
130
131 elog "(config) ${my_file}"
132 echo "${my_file}" >> ${D}/${WA_CONFIGLIST}
133 done
134}
135
136# @FUNCTION: webapp_hook_script
137# @USAGE: <file>
138# @DESCRIPTION:
139# Install a script that will run after a virtual copy is created, and
140# before a virtual copy has been removed.
141webapp_hook_script() {
142 debug-print-function $FUNCNAME $*
143
144 webapp_checkfileexists "${1}"
145
146 elog "(hook) ${1}"
147 cp "${1}" "${D}/${MY_HOOKSCRIPTSDIR}/$(basename "${1}")" || die "Unable to install ${1} into ${D}/${MY_HOOKSCRIPTSDIR}/"
148 chmod 555 "${D}/${MY_HOOKSCRIPTSDIR}/$(basename "${1}")"
149}
150
151# @FUNCTION: webapp_postinst_txt
152# @USAGE: <lang> <file>
153# @DESCRIPTION:
154# Install a text file containing post-installation instructions.
155webapp_postinst_txt() {
156 debug-print-function $FUNCNAME $*
157
158 webapp_checkfileexists "${2}"
159
160 elog "(info) ${2} (lang: ${1})"
161 cp "${2}" "${D}/${MY_APPDIR}/postinst-${1}.txt"
162}
163
164# @FUNCTION: webapp_postupgrade_txt
165# @USAGE: <lang> <file>
166# @DESCRIPTION:
167# Install a text file containing post-upgrade instructions.
168webapp_postupgrade_txt() {
169 debug-print-function $FUNCNAME $*
170
171 webapp_checkfileexists "${2}"
172
173 elog "(info) ${2} (lang: ${1})"
174 cp "${2}" "${D}/${MY_APPDIR}/postupgrade-${1}.txt"
175}
176
177# helper for webapp_serverowned()
178_webapp_serverowned() {
179 debug-print-function $FUNCNAME $*
180
181 webapp_checkfileexists "${1}" "${D}"
182 local my_file="$(webapp_strip_appdir "${1}")"
183 my_file="$(webapp_strip_cwd "${my_file}")"
184
185 elog "(server owned) ${my_file}"
186 echo "${my_file}" >> "${D}/${WA_SOLIST}"
187}
188
189# @FUNCTION: webapp_serverowned
190# @USAGE: [-R] <file> [more files ...]
191# @DESCRIPTION:
192# Identify a file which must be owned by the webserver's user:group settings.
193# The ownership of the file is NOT set until the application is installed using
194# the webapp-config tool. If -R is given directories are handled recursively.
195webapp_serverowned() {
196 debug-print-function $FUNCNAME $*
197
198 local a m
199 if [[ "${1}" == "-R" ]]; then
200 shift
201 for m in "$@"; do
202 find "${D}${m}" | while read a; do
203 a=$(webapp_strip_d "${a}")
204 _webapp_serverowned "${a}"
205 done
206 done
207 else
208 for m in "$@"; do
209 _webapp_serverowned "${m}"
210 done
211 fi
212}
213
214# @FUNCTION: webapp_server_configfile
215# @USAGE: <server> <file> [new name]
216# @DESCRIPTION:
217# Install a configuration file for the webserver. You need to specify a
218# webapp-config supported <server>. if no new name is given `basename $2' is
219# used by default. Note: this function will automagically prepend $1 to the
220# front of your config file's name.
221webapp_server_configfile() {
222 debug-print-function $FUNCNAME $*
223
224 webapp_checkfileexists "${2}"
225
226 # WARNING:
227 #
228 # do NOT change the naming convention used here without changing all
229 # the other scripts that also rely upon these names
230
231 local my_file="${1}-${3:-$(basename "${2}")}"
232
233 elog "(${1}) config file '${my_file}'"
234 cp "${2}" "${D}/${MY_SERVERCONFIGDIR}/${my_file}"
235}
236
237# @FUNCTION: webapp_sqlscript
238# @USAGE: <db> <file> [version]
239# @DESCRIPTION:
240# Install a SQL script that creates/upgrades a database schema for the web
241# application. Currently supported database engines are mysql and postgres.
242# If a version is given the script should upgrade the database schema from
243# the given version to $PVR.
244webapp_sqlscript() {
245 debug-print-function $FUNCNAME $*
246
247 webapp_checkfileexists "${2}"
248
249 dodir "${MY_SQLSCRIPTSDIR}/${1}"
250
251 # WARNING:
252 #
253 # do NOT change the naming convention used here without changing all
254 # the other scripts that also rely upon these names
255
256 if [[ -n "${3}" ]]; then
257 elog "(${1}) upgrade script for ${PN}-${3} to ${PVR}"
258 cp "${2}" "${D}${MY_SQLSCRIPTSDIR}/${1}/${3}_to_${PVR}.sql"
259 chmod 600 "${D}${MY_SQLSCRIPTSDIR}/${1}/${3}_to_${PVR}.sql"
260 else
261 elog "(${1}) create script for ${PN}-${PVR}"
262 cp "${2}" "${D}/${MY_SQLSCRIPTSDIR}/${1}/${PVR}_create.sql"
263 chmod 600 "${D}/${MY_SQLSCRIPTSDIR}/${1}/${PVR}_create.sql"
264 fi
265}
266
267# @FUNCTION: webapp_src_preinst
268# @DESCRIPTION:
269# You need to call this function in src_install() BEFORE anything else has run.
270# For now we just create required webapp-config directories.
271webapp_src_preinst() {
272 debug-print-function $FUNCNAME $*
273
274 dodir "${MY_HTDOCSDIR}"
275 dodir "${MY_HOSTROOTDIR}"
276 dodir "${MY_CGIBINDIR}"
277 dodir "${MY_ICONSDIR}"
278 dodir "${MY_ERRORSDIR}"
279 dodir "${MY_SQLSCRIPTSDIR}"
280 dodir "${MY_HOOKSCRIPTSDIR}"
281 dodir "${MY_SERVERCONFIGDIR}"
282}
283
284# ==============================================================================
285# EXPORTED FUNCTIONS
286# ==============================================================================
287
288# @FUNCTION: webapp_src_install
289# @DESCRIPTION:
290# This is the default src_install(). For now, we just make sure that root owns
291# everything, and that there are no setuid files.
58# 292#
59# Identify a file which must be owned by the webserver's user:group 293# You need to call this function AFTER everything else has run in your custom
60# settings. 294# src_install().
295webapp_src_install() {
296 debug-print-function $FUNCNAME $*
297
298 chown -R "${VHOST_DEFAULT_UID}:${VHOST_DEFAULT_GID}" "${D}/"
299 chmod -R u-s "${D}/"
300 chmod -R g-s "${D}/"
301
302 keepdir "${MY_PERSISTDIR}"
303 fowners "root:0" "${MY_PERSISTDIR}"
304 fperms 755 "${MY_PERSISTDIR}"
305
306 # to test whether or not the ebuild has correctly called this function
307 # we add an empty file to the filesystem
308 #
309 # we used to just set a variable in the shell script, but we can
310 # no longer rely on Portage calling both webapp_src_install() and
311 # webapp_pkg_postinst() within the same shell process
312
313 touch "${D}/${MY_APPDIR}/${INSTALL_CHECK_FILE}"
314}
315
316# @FUNCTION: webapp_pkg_setup
317# @DESCRIPTION:
318# The default pkg_setup() for this eclass. This will gather required variables
319# from webapp-config and check if there is an application installed to
320# `${ROOT}/var/www/localhost/htdocs/${PN}/' if USE=vhosts is not set.
61# 321#
62# The ownership of the file is NOT set until the application is installed 322# You need to call this function BEFORE anything else has run in your custom
63# using the webapp-config tool. 323# pkg_setup().
64# 324webapp_pkg_setup() {
65# @param $1 - file to be owned by the webserver user:group combo 325 debug-print-function $FUNCNAME $*
326
327 # special case - some ebuilds *do* need to overwride the SLOT
328 if [[ "${SLOT}+" != "${PVR}+" && "${WEBAPP_MANUAL_SLOT}" != "yes" ]]; then
329 die "Set WEBAPP_MANUAL_SLOT=\"yes\" if you need to SLOT manually"
330 fi
331
332 # pull in the shared configuration file
333 G_HOSTNAME="localhost"
334 webapp_read_config
335
336 local my_dir="${ROOT}${VHOST_ROOT}/${MY_HTDOCSBASE}/${PN}"
337
338 # if USE=vhosts is enabled OR no application is installed we're done here
339 use vhosts || [[ ! -d "${my_dir}" ]] && return
340
341 local my_output
342 my_output="$(webapp_check_installedat)"
343
344 if [[ $? -ne 0 ]]; then
345 # okay, whatever is there, it isn't webapp-config-compatible
346 echo
347 ewarn
348 ewarn "You already have something installed in ${my_dir}"
349 ewarn
350 ewarn "Whatever is in ${my_dir}, it's not"
351 ewarn "compatible with webapp-config."
352 ewarn
353 ewarn "This ebuild may be overwriting important files."
354 ewarn
355 echo
356 ebeep 10
357 elif [[ "$(echo ${my_output} | awk '{ print $1 }')" != "${PN}" ]]; then
358 echo
359 eerror "You already have ${my_output} installed in ${my_dir}"
360 eerror
361 eerror "I cannot upgrade a different application"
362 eerror
363 echo
364 die "Cannot upgrade contents of ${my_dir}"
365 fi
366}
367
368# @FUNCTION: webapp_pkg_postinst
369# @DESCRIPTION:
370# The default pkg_postinst() for this eclass. This installs the web application to
371# `${ROOT}/var/www/localhost/htdocs/${PN}/' if USE=vhosts is not set. Otherwise
372# display a short notice how to install this application with webapp-config.
66# 373#
67# ------------------------------------------------------------------------ 374# You need to call this function AFTER everything else has run in your custom
375# pkg_postinst().
376webapp_pkg_postinst() {
377 debug-print-function $FUNCNAME $*
68 378
69function webapp_serverowned () 379 webapp_read_config
70{
71 webapp_checkfileexists $1
72 echo "$1" >> $WA_SOLIST
73}
74 380
75# ------------------------------------------------------------------------ 381 # sanity checks, to catch bugs in the ebuild
76# EXPORTED FUNCTION - FOR USE IN EBUILDS 382 if [[ ! -f "${ROOT}${MY_APPDIR}/${INSTALL_CHECK_FILE}" ]]; then
77# 383 eerror
78# Identify a config file for a web-based application. 384 eerror "This ebuild did not call webapp_src_install() at the end"
79# 385 eerror "of the src_install() function"
80# @param $1 - config file 386 eerror
81# ------------------------------------------------------------------------ 387 eerror "Please log a bug on http://bugs.gentoo.org"
388 eerror
389 eerror "You should use emerge -C to remove this package, as the"
390 eerror "installation is incomplete"
391 eerror
392 die "Ebuild did not call webapp_src_install() - report to http://bugs.gentoo.org"
393 fi
82 394
83function webapp_configfile () 395 if ! use vhosts; then
84{ 396 echo
85 webapp_checkfileexists $1 397 elog "vhosts USE flag not set - auto-installing using webapp-config"
86 echo "$1" >> $WA_CONFIGLIST
87}
88 398
89# ------------------------------------------------------------------------ 399 G_HOSTNAME="localhost"
90# EXPORTED FUNCTION - FOR USE IN EBUILDS 400 webapp_read_config
91#
92# Identify a script file (usually, but not always PHP or Perl) which is
93#
94# Files in this list may be modified to #! the required CGI engine when
95# installed by webapp-config tool in the future.
96#
97# @param $1 - the cgi engine to use
98# @param $2 - the script file that could run under a cgi-bin
99#
100# ------------------------------------------------------------------------
101 401
102function webapp_runbycgibin () 402 local my_mode=-I
103{ 403 webapp_getinstalltype
104 webapp_checkfileexists $2
105 echo "$1 $2" >> $WA_RUNBYCGIBINLIST
106}
107 404
108# ------------------------------------------------------------------------ 405 if [[ "${IS_REPLACE}" == "1" ]]; then
109# EXPORTED FUNCTION - call from inside your ebuild's src_install AFTER 406 elog "${PN}-${PVR} is already installed - replacing"
110# everything else has run 407 my_mode=-I
111# 408 elif [[ "${IS_UPGRADE}" == "1" ]]; then
112# For now, we just make sure that root owns everything, and that there 409 elog "${REMOVE_PKG} is already installed - upgrading"
113# are no setuid files. I'm sure this will change significantly before 410 my_mode=-U
114# the final version! 411 else
115# ------------------------------------------------------------------------ 412 elog "${PN}-${PVR} is not installed - using install mode"
413 fi
116 414
117function webapp_src_install () 415 my_cmd="${WEBAPP_CONFIG} ${my_mode} -h localhost -u root -d ${INSTALL_DIR} ${PN} ${PVR}"
118{ 416 elog "Running ${my_cmd}"
119 chown -R root:root ${D}/ 417 ${my_cmd}
120 chmod -R u-s ${D}/
121 chmod -R g-s ${D}/
122}
123 418
124# ------------------------------------------------------------------------ 419 echo
125# EXPORTED FUNCTION - call from inside your ebuild's pkg_setup AFTER 420 local cleaner="${WEBAPP_CLEANER} -p -C ${PN}"
126# everything else has run 421 einfo "Running ${cleaner}"
127# 422 ${cleaner}
128# If 'vhosts' USE flag is not set, auto-install this app 423 else
129# 424 elog
130# ------------------------------------------------------------------------ 425 elog "The 'vhosts' USE flag is switched ON"
426 elog "This means that Portage will not automatically run webapp-config to"
427 elog "complete the installation."
428 elog
429 elog "To install ${PN}-${PVR} into a virtual host, run the following command:"
430 elog
431 elog " webapp-config -I -h <host> -d ${PN} ${PN} ${PVR}"
432 elog
433 elog "For more details, see the webapp-config(8) man page"
434 fi
435}
131 436
132function webapp_pkg_setup () 437# @FUNCTION: webapp_pkg_prerm
133{ 438# @DESCRIPTION:
134 use vhosts || webapp-config -u root -d /var/www/localhost/htdocs/${PN}/ ${PN} 439# This is the default pkg_prerm() for this eclass. If USE=vhosts is not set
440# remove all installed copies of this web application. Otherwise instruct the
441# user to manually remove those copies. See bug #136959.
442webapp_pkg_prerm() {
443 debug-print-function $FUNCNAME $*
444
445 local my_output=
446 my_output="$(${WEBAPP_CONFIG} --list-installs ${PN} ${PVR})"
447 [[ $? -ne 0 ]] && return
448
449 local x
450 if ! use vhosts; then
451 echo "${my_output}" | while read x; do
452 if [[ -f "${x}"/.webapp ]]; then
453 . "${x}"/.webapp
454 if [[ -n "${WEB_HOSTNAME}" && -n "${WEB_INSTALLDIR}" ]]; then
455 ${WEBAPP_CONFIG} -C -h ${WEB_HOSTNAME} -d ${WEB_INSTALLDIR}
456 fi
457 else
458 ewarn "Cannot find file ${x}/.webapp"
459 fi
460 done
461 elif [[ "${my_output}" != "" ]]; then
462 echo
463 ewarn
464 ewarn "Don't forget to use webapp-config to remove any copies of"
465 ewarn "${PN}-${PVR} installed in"
466 ewarn
467
468 echo "${my_output}" | while read x; do
469 if [[ -f "${x}"/.webapp ]]; then
470 ewarn " ${x}"
471 else
472 ewarn "Cannot find file ${x}/.webapp"
473 fi
474 done
475
476 ewarn
477 echo
478 fi
479}

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