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Revision 1.58 - (show annotations) (download)
Fri Feb 22 15:33:32 2008 UTC (6 years, 5 months ago) by hollow
Branch: MAIN
Changes since 1.57: +28 -1 lines
add need_httpd_* functions wrt #208584

1 # Copyright 1999-2006 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/webapp.eclass,v 1.57 2008/02/22 14:59:07 hollow Exp $
4 #
5 # @ECLASS: webapp.eclass
6 # @MAINTAINER:
7 # web-apps@gentoo.org
8 # @BLURB: functions for installing applications to run under a web server
9 # @DESCRIPTION:
10 # The webapp eclass contains functions to handle web applications with
11 # webapp-config. Part of the implementation of GLEP #11
12
13 SLOT="${PVR}"
14 IUSE="vhosts"
15 DEPEND=">=app-admin/webapp-config-1.50.15"
16 RDEPEND="${DEPEND}"
17
18 EXPORT_FUNCTIONS pkg_postinst pkg_setup src_install pkg_prerm
19
20 INSTALL_DIR="/${PN}"
21 IS_UPGRADE=0
22 IS_REPLACE=0
23
24 INSTALL_CHECK_FILE="installed_by_webapp_eclass"
25 SETUP_CHECK_FILE="setup_by_webapp_eclass"
26
27 ETC_CONFIG="${ROOT}etc/vhosts/webapp-config"
28 WEBAPP_CONFIG="${ROOT}usr/sbin/webapp-config"
29 WEBAPP_CLEANER="${ROOT}usr/sbin/webapp-cleaner"
30
31 # ==============================================================================
32 # INTERNAL FUNCTIONS
33 # ==============================================================================
34
35 # Load the config file /etc/vhosts/webapp-config
36 # Supports both the old bash version, and the new python version
37 webapp_read_config() {
38 debug-print-function $FUNCNAME $*
39
40 if has_version '>=app-admin/webapp-config-1.50'; then
41 ENVVAR=$(${WEBAPP_CONFIG} --query ${PN} ${PVR}) || die "Could not read settings from webapp-config!"
42 eval ${ENVVAR}
43 else
44 . ${ETC_CONFIG} || die "Unable to read ${ETC_CONFIG}"
45 fi
46 }
47
48 # Check whether a specified file exists in the given directory (`.' by default)
49 webapp_checkfileexists() {
50 debug-print-function $FUNCNAME $*
51
52 local my_prefix=${2:+${2}/}
53
54 if [[ ! -e "${my_prefix}${1}" ]]; then
55 msg="ebuild fault: file '${1}' not found"
56 eerror "$msg"
57 eerror "Please report this as a bug at http://bugs.gentoo.org/"
58 die "$msg"
59 fi
60 }
61
62 webapp_check_installedat() {
63 debug-print-function $FUNCNAME $*
64 ${WEBAPP_CONFIG} --show-installed -h localhost -d "${INSTALL_DIR}" 2> /dev/null
65 }
66
67 webapp_strip_appdir() {
68 debug-print-function $FUNCNAME $*
69 echo "${1#${MY_APPDIR}/}"
70 }
71
72 webapp_strip_d() {
73 debug-print-function $FUNCNAME $*
74 echo "${1#${D}}"
75 }
76
77 webapp_strip_cwd() {
78 debug-print-function $FUNCNAME $*
79 echo "${1/#.\///}"
80 }
81
82 webapp_getinstalltype() {
83 debug-print-function $FUNCNAME $*
84 use vhosts && return
85
86 local my_output
87 my_output="$(webapp_check_installedat)"
88
89 if [[ $? -eq 0 ]]; then
90 # something is already installed there
91 # make sure it isn't the same version
92
93 local my_pn="$(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 }
113
114 # ==============================================================================
115 # PUBLIC FUNCTIONS
116 # ==============================================================================
117
118 # @FUNCTION: need_httpd
119 # @DESCRIPTION:
120 # Call this function AFTER your ebuild's DEPEND line if any of the available
121 # webservers are able to run this application.
122 need_httpd() {
123 DEPEND="${DEPEND}
124 || ( virtual/httpd-basic virtual/httpd-cgi virtual/httpd-fastcgi )"
125 }
126
127 # @FUNCTION: need_httpd_cgi
128 # @DESCRIPTION:
129 # Call this function AFTER your ebuild's DEPEND line if any of the available
130 # CGI-capable webservers are able to run this application.
131 need_httpd_cgi() {
132 DEPEND="${DEPEND}
133 || ( virtual/httpd-cgi virtual/httpd-fastcgi )"
134 }
135
136 # @FUNCTION: need_httpd_fastcgi
137 # @DESCRIPTION:
138 # Call this function AFTER your ebuild's DEPEND line if any of the available
139 # FastCGI-capabale webservers are able to run this application.
140 need_httpd_fastcgi() {
141 DEPEND="${DEPEND}
142 virtual/httpd-fastcgi"
143 }
144
145 # @FUNCTION: webapp_configfile
146 # @USAGE: <file> [more files ...]
147 # @DESCRIPTION:
148 # Mark a file config-protected for a web-based application.
149 webapp_configfile() {
150 debug-print-function $FUNCNAME $*
151
152 local m
153 for m in "$@"; do
154 webapp_checkfileexists "${m}" "${D}"
155
156 local my_file="$(webapp_strip_appdir "${m}")"
157 my_file="$(webapp_strip_cwd "${my_file}")"
158
159 elog "(config) ${my_file}"
160 echo "${my_file}" >> ${D}/${WA_CONFIGLIST}
161 done
162 }
163
164 # @FUNCTION: webapp_hook_script
165 # @USAGE: <file>
166 # @DESCRIPTION:
167 # Install a script that will run after a virtual copy is created, and
168 # before a virtual copy has been removed.
169 webapp_hook_script() {
170 debug-print-function $FUNCNAME $*
171
172 webapp_checkfileexists "${1}"
173
174 elog "(hook) ${1}"
175 cp "${1}" "${D}/${MY_HOOKSCRIPTSDIR}/$(basename "${1}")" || die "Unable to install ${1} into ${D}/${MY_HOOKSCRIPTSDIR}/"
176 chmod 555 "${D}/${MY_HOOKSCRIPTSDIR}/$(basename "${1}")"
177 }
178
179 # @FUNCTION: webapp_postinst_txt
180 # @USAGE: <lang> <file>
181 # @DESCRIPTION:
182 # Install a text file containing post-installation instructions.
183 webapp_postinst_txt() {
184 debug-print-function $FUNCNAME $*
185
186 webapp_checkfileexists "${2}"
187
188 elog "(info) ${2} (lang: ${1})"
189 cp "${2}" "${D}/${MY_APPDIR}/postinst-${1}.txt"
190 }
191
192 # @FUNCTION: webapp_postupgrade_txt
193 # @USAGE: <lang> <file>
194 # @DESCRIPTION:
195 # Install a text file containing post-upgrade instructions.
196 webapp_postupgrade_txt() {
197 debug-print-function $FUNCNAME $*
198
199 webapp_checkfileexists "${2}"
200
201 elog "(info) ${2} (lang: ${1})"
202 cp "${2}" "${D}/${MY_APPDIR}/postupgrade-${1}.txt"
203 }
204
205 # helper for webapp_serverowned()
206 _webapp_serverowned() {
207 debug-print-function $FUNCNAME $*
208
209 webapp_checkfileexists "${1}" "${D}"
210 local my_file="$(webapp_strip_appdir "${1}")"
211 my_file="$(webapp_strip_cwd "${my_file}")"
212
213 elog "(server owned) ${my_file}"
214 echo "${my_file}" >> "${D}/${WA_SOLIST}"
215 }
216
217 # @FUNCTION: webapp_serverowned
218 # @USAGE: [-R] <file> [more files ...]
219 # @DESCRIPTION:
220 # Identify a file which must be owned by the webserver's user:group settings.
221 # The ownership of the file is NOT set until the application is installed using
222 # the webapp-config tool. If -R is given directories are handled recursively.
223 webapp_serverowned() {
224 debug-print-function $FUNCNAME $*
225
226 local a m
227 if [[ "${1}" == "-R" ]]; then
228 shift
229 for m in "$@"; do
230 find "${D}${m}" | while read a; do
231 a=$(webapp_strip_d "${a}")
232 _webapp_serverowned "${a}"
233 done
234 done
235 else
236 for m in "$@"; do
237 _webapp_serverowned "${m}"
238 done
239 fi
240 }
241
242 # @FUNCTION: webapp_server_configfile
243 # @USAGE: <server> <file> [new name]
244 # @DESCRIPTION:
245 # Install a configuration file for the webserver. You need to specify a
246 # webapp-config supported <server>. if no new name is given `basename $2' is
247 # used by default. Note: this function will automagically prepend $1 to the
248 # front of your config file's name.
249 webapp_server_configfile() {
250 debug-print-function $FUNCNAME $*
251
252 webapp_checkfileexists "${2}"
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 local my_file="${1}-${3:-$(basename "${2}")}"
260
261 elog "(${1}) config file '${my_file}'"
262 cp "${2}" "${D}/${MY_SERVERCONFIGDIR}/${my_file}"
263 }
264
265 # @FUNCTION: webapp_sqlscript
266 # @USAGE: <db> <file> [version]
267 # @DESCRIPTION:
268 # Install a SQL script that creates/upgrades a database schema for the web
269 # application. Currently supported database engines are mysql and postgres.
270 # If a version is given the script should upgrade the database schema from
271 # the given version to $PVR.
272 webapp_sqlscript() {
273 debug-print-function $FUNCNAME $*
274
275 webapp_checkfileexists "${2}"
276
277 dodir "${MY_SQLSCRIPTSDIR}/${1}"
278
279 # WARNING:
280 #
281 # do NOT change the naming convention used here without changing all
282 # the other scripts that also rely upon these names
283
284 if [[ -n "${3}" ]]; then
285 elog "(${1}) upgrade script for ${PN}-${3} to ${PVR}"
286 cp "${2}" "${D}${MY_SQLSCRIPTSDIR}/${1}/${3}_to_${PVR}.sql"
287 chmod 600 "${D}${MY_SQLSCRIPTSDIR}/${1}/${3}_to_${PVR}.sql"
288 else
289 elog "(${1}) create script for ${PN}-${PVR}"
290 cp "${2}" "${D}/${MY_SQLSCRIPTSDIR}/${1}/${PVR}_create.sql"
291 chmod 600 "${D}/${MY_SQLSCRIPTSDIR}/${1}/${PVR}_create.sql"
292 fi
293 }
294
295 # @FUNCTION: webapp_src_preinst
296 # @DESCRIPTION:
297 # You need to call this function in src_install() BEFORE anything else has run.
298 # For now we just create required webapp-config directories.
299 webapp_src_preinst() {
300 debug-print-function $FUNCNAME $*
301
302 dodir "${MY_HTDOCSDIR}"
303 dodir "${MY_HOSTROOTDIR}"
304 dodir "${MY_CGIBINDIR}"
305 dodir "${MY_ICONSDIR}"
306 dodir "${MY_ERRORSDIR}"
307 dodir "${MY_SQLSCRIPTSDIR}"
308 dodir "${MY_HOOKSCRIPTSDIR}"
309 dodir "${MY_SERVERCONFIGDIR}"
310 }
311
312 # ==============================================================================
313 # EXPORTED FUNCTIONS
314 # ==============================================================================
315
316 # @FUNCTION: webapp_pkg_setup
317 # @DESCRIPTION:
318 # The default pkg_setup() for this eclass. This will gather required variables
319 # from webapp-config and check if there is an application installed to
320 # `${ROOT}/var/www/localhost/htdocs/${PN}/' if USE=vhosts is not set.
321 #
322 # You need to call this function BEFORE anything else has run in your custom
323 # pkg_setup().
324 webapp_pkg_setup() {
325 debug-print-function $FUNCNAME $*
326
327 # to test whether or not the ebuild has correctly called this function
328 # we add an empty file to the filesystem
329 #
330 # we used to just set a variable in the shell script, but we can
331 # no longer rely on Portage calling both webapp_pkg_setup() and
332 # webapp_src_install() within the same shell process
333 touch "${T}/${SETUP_CHECK_FILE}"
334
335 # special case - some ebuilds *do* need to overwride the SLOT
336 if [[ "${SLOT}+" != "${PVR}+" && "${WEBAPP_MANUAL_SLOT}" != "yes" ]]; then
337 die "Set WEBAPP_MANUAL_SLOT=\"yes\" if you need to SLOT manually"
338 fi
339
340 # pull in the shared configuration file
341 G_HOSTNAME="localhost"
342 webapp_read_config
343
344 local my_dir="${ROOT}${VHOST_ROOT}/${MY_HTDOCSBASE}/${PN}"
345
346 # if USE=vhosts is enabled OR no application is installed we're done here
347 use vhosts || [[ ! -d "${my_dir}" ]] && return
348
349 local my_output
350 my_output="$(webapp_check_installedat)"
351
352 if [[ $? -ne 0 ]]; then
353 # okay, whatever is there, it isn't webapp-config-compatible
354 echo
355 ewarn
356 ewarn "You already have something installed in ${my_dir}"
357 ewarn
358 ewarn "Whatever is in ${my_dir}, it's not"
359 ewarn "compatible with webapp-config."
360 ewarn
361 ewarn "This ebuild may be overwriting important files."
362 ewarn
363 echo
364 ebeep 10
365 elif [[ "$(echo ${my_output} | awk '{ print $1 }')" != "${PN}" ]]; then
366 echo
367 eerror "You already have ${my_output} installed in ${my_dir}"
368 eerror
369 eerror "I cannot upgrade a different application"
370 eerror
371 echo
372 die "Cannot upgrade contents of ${my_dir}"
373 fi
374
375 }
376
377 # @FUNCTION: webapp_src_install
378 # @DESCRIPTION:
379 # This is the default src_install(). For now, we just make sure that root owns
380 # everything, and that there are no setuid files.
381 #
382 # You need to call this function AFTER everything else has run in your custom
383 # src_install().
384 webapp_src_install() {
385 debug-print-function $FUNCNAME $*
386
387 # to test whether or not the ebuild has correctly called this function
388 # we add an empty file to the filesystem
389 #
390 # we used to just set a variable in the shell script, but we can
391 # no longer rely on Portage calling both webapp_src_install() and
392 # webapp_pkg_postinst() within the same shell process
393 touch "${D}/${MY_APPDIR}/${INSTALL_CHECK_FILE}"
394
395 # sanity checks, to catch bugs in the ebuild
396 if [[ ! -f "${T}/${SETUP_CHECK_FILE}" ]]; then
397 eerror
398 eerror "This ebuild did not call webapp_pkg_setup() at the beginning"
399 eerror "of the pkg_setup() function"
400 eerror
401 eerror "Please log a bug on http://bugs.gentoo.org"
402 eerror
403 eerror "You should use emerge -C to remove this package, as the"
404 eerror "installation is incomplete"
405 eerror
406 die "Ebuild did not call webapp_pkg_setup() - report to http://bugs.gentoo.org"
407 fi
408
409 chown -R "${VHOST_DEFAULT_UID}:${VHOST_DEFAULT_GID}" "${D}/"
410 chmod -R u-s "${D}/"
411 chmod -R g-s "${D}/"
412
413 keepdir "${MY_PERSISTDIR}"
414 fowners "root:0" "${MY_PERSISTDIR}"
415 fperms 755 "${MY_PERSISTDIR}"
416 }
417
418 # @FUNCTION: webapp_pkg_postinst
419 # @DESCRIPTION:
420 # The default pkg_postinst() for this eclass. This installs the web application to
421 # `${ROOT}/var/www/localhost/htdocs/${PN}/' if USE=vhosts is not set. Otherwise
422 # display a short notice how to install this application with webapp-config.
423 #
424 # You need to call this function AFTER everything else has run in your custom
425 # pkg_postinst().
426 webapp_pkg_postinst() {
427 debug-print-function $FUNCNAME $*
428
429 webapp_read_config
430
431 # sanity checks, to catch bugs in the ebuild
432 if [[ ! -f "${ROOT}${MY_APPDIR}/${INSTALL_CHECK_FILE}" ]]; then
433 eerror
434 eerror "This ebuild did not call webapp_src_install() at the end"
435 eerror "of the src_install() function"
436 eerror
437 eerror "Please log a bug on http://bugs.gentoo.org"
438 eerror
439 eerror "You should use emerge -C to remove this package, as the"
440 eerror "installation is incomplete"
441 eerror
442 die "Ebuild did not call webapp_src_install() - report to http://bugs.gentoo.org"
443 fi
444
445 if ! use vhosts; then
446 echo
447 elog "vhosts USE flag not set - auto-installing using webapp-config"
448
449 G_HOSTNAME="localhost"
450 webapp_read_config
451
452 local my_mode=-I
453 webapp_getinstalltype
454
455 if [[ "${IS_REPLACE}" == "1" ]]; then
456 elog "${PN}-${PVR} is already installed - replacing"
457 my_mode=-I
458 elif [[ "${IS_UPGRADE}" == "1" ]]; then
459 elog "${REMOVE_PKG} is already installed - upgrading"
460 my_mode=-U
461 else
462 elog "${PN}-${PVR} is not installed - using install mode"
463 fi
464
465 my_cmd="${WEBAPP_CONFIG} ${my_mode} -h localhost -u root -d ${INSTALL_DIR} ${PN} ${PVR}"
466 elog "Running ${my_cmd}"
467 ${my_cmd}
468
469 echo
470 local cleaner="${WEBAPP_CLEANER} -p -C ${PN}"
471 einfo "Running ${cleaner}"
472 ${cleaner}
473 else
474 elog
475 elog "The 'vhosts' USE flag is switched ON"
476 elog "This means that Portage will not automatically run webapp-config to"
477 elog "complete the installation."
478 elog
479 elog "To install ${PN}-${PVR} into a virtual host, run the following command:"
480 elog
481 elog " webapp-config -I -h <host> -d ${PN} ${PN} ${PVR}"
482 elog
483 elog "For more details, see the webapp-config(8) man page"
484 fi
485 }
486
487 # @FUNCTION: webapp_pkg_prerm
488 # @DESCRIPTION:
489 # This is the default pkg_prerm() for this eclass. If USE=vhosts is not set
490 # remove all installed copies of this web application. Otherwise instruct the
491 # user to manually remove those copies. See bug #136959.
492 webapp_pkg_prerm() {
493 debug-print-function $FUNCNAME $*
494
495 local my_output=
496 my_output="$(${WEBAPP_CONFIG} --list-installs ${PN} ${PVR})"
497 [[ $? -ne 0 ]] && return
498
499 local x
500 if ! use vhosts; then
501 echo "${my_output}" | while read x; do
502 if [[ -f "${x}"/.webapp ]]; then
503 . "${x}"/.webapp
504 if [[ -n "${WEB_HOSTNAME}" && -n "${WEB_INSTALLDIR}" ]]; then
505 ${WEBAPP_CONFIG} -C -h ${WEB_HOSTNAME} -d ${WEB_INSTALLDIR}
506 fi
507 else
508 ewarn "Cannot find file ${x}/.webapp"
509 fi
510 done
511 elif [[ "${my_output}" != "" ]]; then
512 echo
513 ewarn
514 ewarn "Don't forget to use webapp-config to remove any copies of"
515 ewarn "${PN}-${PVR} installed in"
516 ewarn
517
518 echo "${my_output}" | while read x; do
519 if [[ -f "${x}"/.webapp ]]; then
520 ewarn " ${x}"
521 else
522 ewarn "Cannot find file ${x}/.webapp"
523 fi
524 done
525
526 ewarn
527 echo
528 fi
529 }

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