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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 1.52 2008/02/22 13:53:38 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 $*
50
51 local my_prefix=${2:+${2}/}
52
48 if [ ! -e ${D}/$1 ]; then 53 if [ ! -e "${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 $*
83
84 if ! use vhosts ; then
85 local my_output
86
87 my_output="$(webapp_check_installedat)"
88
89 if [ "${?}" = "0" ] ; then
90 # something is already installed there
91 # make sure it isn't the same version
92
93 local my_pn="$(echo ${my_output} | awk '{ print $1 }')"
94 local my_pvr="$(echo ${my_output} | awk '{ print $2 }')"
95
96 REMOVE_PKG="${my_pn}-${my_pvr}"
97
98 if [ "${my_pn}" == "${PN}" ]; then
99 if [ "${my_pvr}" != "${PVR}" ]; then
100 elog "This is an upgrade"
101 IS_UPGRADE=1
102 else
103 elog "This is a re-installation"
104 IS_REPLACE=1
105 fi
106 else
107 elog "${my_output} is installed there"
108 fi
109 else
110 elog "This is an installation"
111 fi
112 fi
113}
114
115# ==============================================================================
116# PUBLIC FUNCTIONS
117# ==============================================================================
118
119# @FUNCTION: webapp_configfile
120# @USAGE: <file> [more files ...]
121# @DESCRIPTION:
122# Mark a file config-protected for a web-based application.
123webapp_configfile() {
124 debug-print-function $FUNCNAME $*
125
126 local m=""
127 for m in "$@" ; do
128 webapp_checkfileexists "${m}" "${D}"
129
130 local MY_FILE="$(webapp_strip_appdir "${m}")"
131 MY_FILE="$(webapp_strip_cwd "${MY_FILE}")"
132
133 elog "(config) ${MY_FILE}"
134 echo "${MY_FILE}" >> ${D}/${WA_CONFIGLIST}
135 done
136}
137
138# @FUNCTION: webapp_hook_script
139# @USAGE: <file>
140# @DESCRIPTION:
141# Install a script that will run after a virtual copy is created, and
142# before a virtual copy has been removed.
143webapp_hook_script() {
144 debug-print-function $FUNCNAME $*
145
146 webapp_checkfileexists "${1}"
147
148 elog "(hook) ${1}"
149 cp "${1}" "${D}/${MY_HOOKSCRIPTSDIR}/$(basename "${1}")" || die "Unable to install ${1} into ${D}/${MY_HOOKSCRIPTSDIR}/"
150 chmod 555 "${D}/${MY_HOOKSCRIPTSDIR}/$(basename "${1}")"
151}
152
153# @FUNCTION: webapp_postinst_txt
154# @USAGE: <lang> <file>
155# @DESCRIPTION:
156# Install a text file containing post-installation instructions.
157webapp_postinst_txt() {
158 debug-print-function $FUNCNAME $*
159
160 webapp_checkfileexists "${2}"
161
162 elog "(info) ${2} (lang: ${1})"
163 cp "${2}" "${D}/${MY_APPDIR}/postinst-${1}.txt"
164}
165
166# @FUNCTION: webapp_postupgrade_txt
167# @USAGE: <lang> <file>
168# @DESCRIPTION:
169# Install a text file containing post-upgrade instructions.
170webapp_postupgrade_txt() {
171 debug-print-function $FUNCNAME $*
172
173 webapp_checkfileexists "${2}"
174
175 elog "(info) ${2} (lang: ${1})"
176 cp "${2}" "${D}/${MY_APPDIR}/postupgrade-${1}.txt"
177}
178
179# @FUNCTION: webapp_serverowned
180# @USAGE: [-R] <file> [more files ...]
181# @DESCRIPTION:
182# Identify a file which must be owned by the webserver's user:group settings.
183# The ownership of the file is NOT set until the application is installed using
184# the webapp-config tool. If -R is given directories are handled recursively.
185webapp_serverowned() {
186 debug-print-function $FUNCNAME $*
187
188 local a=""
189 local m=""
190 if [ "${1}" = "-R" ]; then
191 shift
192 for m in "$@" ; do
193 for a in $(find ${D}/${m}); do
194 a=${a/${D}\/\///}
195 webapp_checkfileexists "${a}" "$D"
196 local MY_FILE="$(webapp_strip_appdir "${a}")"
197 MY_FILE="$(webapp_strip_cwd "${MY_FILE}")"
198
199 elog "(server owned) ${MY_FILE}"
200 echo "${MY_FILE}" >> "${D}/${WA_SOLIST}"
201 done
202 done
203 else
204 for m in "$@" ; do
205 webapp_checkfileexists "${m}" "$D"
206 local MY_FILE="$(webapp_strip_appdir "${m}")"
207 MY_FILE="$(webapp_strip_cwd "${MY_FILE}")"
208
209 elog "(server owned) ${MY_FILE}"
210 echo "${MY_FILE}" >> "${D}/${WA_SOLIST}"
211 done
212 fi
213}
214
215# @FUNCTION: webapp_server_configfile
216# @USAGE: <server> <file> [new name]
217# @DESCRIPTION:
218# Install a configuration file for the webserver. You need to specify a
219# webapp-config supported <server>. if no new name is given `basename $2' is
220# used by default. Note: this function will automagically prepend $1 to the
221# front of your config file's name.
222webapp_server_configfile() {
223 debug-print-function $FUNCNAME $*
224
225 webapp_checkfileexists "${2}"
226
227 # WARNING:
228 #
229 # do NOT change the naming convention used here without changing all
230 # the other scripts that also rely upon these names
231
232 local my_file="${1}-${3:-$(basename "${2}")}"
233
234 elog "(${1}) config file '${my_file}'"
235 cp "${2}" "${D}/${MY_SERVERCONFIGDIR}/${my_file}"
236}
237
238# @FUNCTION: webapp_sqlscript
239# @USAGE: <db> <file> [version]
240# @DESCRIPTION:
241# Install a SQL script that creates/upgrades a database schema for the web
242# application. Currently supported database engines are mysql and postgres.
243# If a version is given the script should upgrade the database schema from
244# the given version to $PVR.
245webapp_sqlscript() {
246 debug-print-function $FUNCNAME $*
247
248 webapp_checkfileexists "${2}"
249
250 if [ ! -d "${D}/${MY_SQLSCRIPTSDIR}/${1}" ]; then
251 mkdir -p "${D}/${MY_SQLSCRIPTSDIR}/${1}" || die "unable to create directory ${D}/${MY_SQLSCRIPTSDIR}/${1}"
252 fi
253
254 # WARNING:
255 #
256 # do NOT change the naming convention used here without changing all
257 # the other scripts that also rely upon these names
258
259 if [ -n "${3}" ]; then
260 elog "(${1}) upgrade script from ${PN}-${PVR} to ${3}"
261 cp "${2}" "${D}${MY_SQLSCRIPTSDIR}/${1}/${3}_to_${PVR}.sql"
262 chmod 600 "${D}${MY_SQLSCRIPTSDIR}/${1}/${3}_to_${PVR}.sql"
263 else
264 elog "(${1}) create script for ${PN}-${PVR}"
265 cp "${2}" "${D}/${MY_SQLSCRIPTSDIR}/${1}/${PVR}_create.sql"
266 chmod 600 "${D}/${MY_SQLSCRIPTSDIR}/${1}/${PVR}_create.sql"
267 fi
268}
269
270# @FUNCTION: webapp_src_preinst
271# @DESCRIPTION:
272# You need to call this function in src_install() BEFORE anything else has run.
273# For now we just create required webapp-config directories.
274webapp_src_preinst() {
275 debug-print-function $FUNCNAME $*
276
277 dodir "${MY_HTDOCSDIR}"
278 dodir "${MY_HOSTROOTDIR}"
279 dodir "${MY_CGIBINDIR}"
280 dodir "${MY_ICONSDIR}"
281 dodir "${MY_ERRORSDIR}"
282 dodir "${MY_SQLSCRIPTSDIR}"
283 dodir "${MY_HOOKSCRIPTSDIR}"
284 dodir "${MY_SERVERCONFIGDIR}"
285}
286
287# ==============================================================================
288# EXPORTED FUNCTIONS
289# ==============================================================================
290
291# @FUNCTION: webapp_src_install
292# @DESCRIPTION:
293# This is the default src_install(). For now, we just make sure that root owns
294# everything, and that there are no setuid files.
58# 295#
59# Identify a file which must be owned by the webserver's user:group 296# You need to call this function AFTER everything else has run in your custom
60# settings. 297# src_install().
298webapp_src_install() {
299 debug-print-function $FUNCNAME $*
300
301 chown -R "${VHOST_DEFAULT_UID}:${VHOST_DEFAULT_GID}" "${D}/"
302 chmod -R u-s "${D}/"
303 chmod -R g-s "${D}/"
304
305 keepdir "${MY_PERSISTDIR}"
306 fowners "root:0" "${MY_PERSISTDIR}"
307 fperms 755 "${MY_PERSISTDIR}"
308
309 # to test whether or not the ebuild has correctly called this function
310 # we add an empty file to the filesystem
311 #
312 # we used to just set a variable in the shell script, but we can
313 # no longer rely on Portage calling both webapp_src_install() and
314 # webapp_pkg_postinst() within the same shell process
315
316 touch "${D}/${MY_APPDIR}/${INSTALL_CHECK_FILE}"
317}
318
319# @FUNCTION: webapp_pkg_setup
320# @DESCRIPTION:
321# The default pkg_setup() for this eclass. This will gather required variables
322# from webapp-config and check if there is an application installed to
323# `${ROOT}/var/www/localhost/htdocs/${PN}/' if USE=vhosts is not set.
61# 324#
62# The ownership of the file is NOT set until the application is installed 325# You need to call this function BEFORE anything else has run in your custom
63# using the webapp-config tool. 326# pkg_setup().
64# 327webapp_pkg_setup() {
65# @param $1 - file to be owned by the webserver user:group combo 328 debug-print-function $FUNCNAME $*
329
330 # special case - some ebuilds *do* need to overwride the SLOT
331 if [[ "${SLOT}+" != "${PVR}+" && "${WEBAPP_MANUAL_SLOT}" != "yes" ]]; then
332 die "Set WEBAPP_MANUAL_SLOT=\"yes\" if you need to SLOT manually"
333 fi
334
335 # pull in the shared configuration file
336 G_HOSTNAME="localhost"
337 webapp_read_config
338
339 # are we installing a webapp-config solution over the top of a
340 # non-webapp-config solution?
341 if ! use vhosts ; then
342 local my_dir="${ROOT}${VHOST_ROOT}/${MY_HTDOCSBASE}/${PN}"
343 local my_output
344
345 if [ -d "${my_dir}" ] ; then
346 my_output="$(webapp_check_installedat)"
347
348 if [ "$?" != "0" ]; then
349 # okay, whatever is there, it isn't webapp-config-compatible
350 ewarn "You already have something installed in ${my_dir}"
351 ewarn
352 ewarn "Whatever is in ${my_dir}, it's not"
353 ewarn "compatible with webapp-config."
354 ewarn
355 ewarn "This ebuild may be overwriting important files."
356 ewarn
357 elif [ "$(echo ${my_output} | awk '{ print $1 }')" != "${PN}" ]; then
358 eerror "${my_dir} contains ${my_output}"
359 eerror "I cannot upgrade that"
360 die "Cannot upgrade contents of ${my_dir}"
361 fi
362 fi
363 fi
364}
365
366# @FUNCTION: webapp_pkg_postinst
367# @DESCRIPTION:
368# The default pkg_postinst() for this eclass. This installs the web application to
369# `${ROOT}/var/www/localhost/htdocs/${PN}/' if USE=vhosts is not set. Otherwise
370# display a short notice how to install this application with webapp-config.
66# 371#
67# ------------------------------------------------------------------------ 372# You need to call this function AFTER everything else has run in your custom
373# pkg_postinst().
374webapp_pkg_postinst() {
375 debug-print-function $FUNCNAME $*
68 376
69function webapp_serverowned () 377 webapp_read_config
70{
71 webapp_checkfileexists $1
72 echo "$1" >> $WA_SOLIST
73}
74 378
75# ------------------------------------------------------------------------ 379 # sanity checks, to catch bugs in the ebuild
76# EXPORTED FUNCTION - FOR USE IN EBUILDS 380 if [ ! -f "${ROOT}${MY_APPDIR}/${INSTALL_CHECK_FILE}" ]; then
77# 381 eerror
78# Identify a config file for a web-based application. 382 eerror "This ebuild did not call webapp_src_install() at the end"
79# 383 eerror "of the src_install() function"
80# @param $1 - config file 384 eerror
81# ------------------------------------------------------------------------ 385 eerror "Please log a bug on http://bugs.gentoo.org"
386 eerror
387 eerror "You should use emerge -C to remove this package, as the"
388 eerror "installation is incomplete"
389 eerror
390 die "Ebuild did not call webapp_src_install() - report to http://bugs.gentoo.org"
391 fi
82 392
83function webapp_configfile () 393 if ! use vhosts ; then
84{ 394 echo
85 webapp_checkfileexists $1 395 elog "vhosts USE flag not set - auto-installing using webapp-config"
86 echo "$1" >> $WA_CONFIGLIST
87}
88 396
89# ------------------------------------------------------------------------ 397 webapp_getinstalltype
90# EXPORTED FUNCTION - FOR USE IN EBUILDS
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# ------------------------------------------------------------------------
101 398
102function webapp_runbycgibin () 399 G_HOSTNAME="localhost"
103{ 400 local my_mode=-I
104 webapp_checkfileexists $2 401 webapp_read_config
105 echo "$1 $2" >> $WA_RUNBYCGIBINLIST
106}
107 402
108# ------------------------------------------------------------------------ 403 if [ "${IS_REPLACE}" = "1" ]; then
109# EXPORTED FUNCTION - call from inside your ebuild's src_install AFTER 404 elog "${PN}-${PVR} is already installed - replacing"
110# everything else has run 405 my_mode=-I
111# 406 elif [ "${IS_UPGRADE}" = "1" ]; then
112# For now, we just make sure that root owns everything, and that there 407 elog "${REMOVE_PKG} is already installed - upgrading"
113# are no setuid files. I'm sure this will change significantly before 408 my_mode=-U
114# the final version! 409 else
115# ------------------------------------------------------------------------ 410 elog "${PN}-${PVR} is not installed - using install mode"
411 fi
116 412
117function webapp_src_install () 413 my_cmd="${WEBAPP_CONFIG} ${my_mode} -h localhost -u root -d ${INSTALL_DIR} ${PN} ${PVR}"
118{ 414 elog "Running ${my_cmd}"
119 chown -R root:root ${D}/ 415 ${my_cmd}
120 chmod -R u-s ${D}/
121 chmod -R g-s ${D}/
122}
123 416
124# ------------------------------------------------------------------------ 417 echo
125# EXPORTED FUNCTION - call from inside your ebuild's pkg_setup AFTER 418 local cleaner="${WEBAPP_CLEANER} -p -C ${PN}"
126# everything else has run 419 einfo "Running ${cleaner}"
127# 420 ${cleaner}
128# If 'vhosts' USE flag is not set, auto-install this app 421 else
129# 422 elog
130# ------------------------------------------------------------------------ 423 elog "The 'vhosts' USE flag is switched ON"
424 elog "This means that Portage will not automatically run webapp-config to"
425 elog "complete the installation."
426 elog
427 elog "To install ${PN}-${PVR} into a virtual host, run the following command:"
428 elog
429 elog " webapp-config -I -h <host> -d ${PN} ${PN} ${PVR}"
430 elog
431 elog "For more details, see the webapp-config(8) man page"
432 fi
131 433
132function webapp_pkg_setup () 434 return 0
133{ 435}
134 use vhosts || webapp-config -u root -d /var/www/localhost/htdocs/${PN}/ ${PN} 436
437# @FUNCTION: webapp_pkg_prerm
438# @DESCRIPTION:
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 $*
444
445 local my_output
446 local x
447
448 my_output="$(${WEBAPP_CONFIG} --list-installs ${PN} ${PVR})"
449
450 if [ "${?}" != "0" ]; then
451 return
452 fi
453
454 if ! use vhosts ; then
455
456 for x in ${my_output} ; do
457 [ -f ${x}/.webapp ] && . ${x}/.webapp || ewarn "Cannot find file ${x}/.webapp"
458 if [ "${WEB_HOSTNAME}" -a "${WEB_INSTALLDIR}" ]; then
459 ${WEBAPP_CONFIG} -C -h ${WEB_HOSTNAME} -d ${WEB_INSTALLDIR}
460 fi
461 done
462 else
463
464 ewarn "Don't forget to use webapp-config to remove any copies of"
465 ewarn "${PN}-${PVR} installed in"
466 ewarn
467
468 for x in ${my_output} ; do
469 [ -f ${x}/.webapp ] && . ${x}/.webapp || ewarn "Cannot find file ${x}/.webapp"
470 ewarn " ${x}"
471 done
472 fi
473}

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