debian/scripts/koha-plack

   1 #!/bin/bash
   2 #
   3 # Copyright 2015 Theke Solutions
   4 #
   5 # This file is part of Koha.
   6 #
   7 # This program is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 set -e
  21
  22 . /lib/lsb/init-functions
  23
  24 # Read configuration variable file if it is present
  25 [ -r /etc/default/koha-common ] && . /etc/default/koha-common
  26
  27 # include helper functions
  28 if [ -f "/usr/share/koha/bin/koha-functions.sh" ]; then
  29     . "/usr/share/koha/bin/koha-functions.sh"
  30 else
  31     echo "Error: /usr/share/koha/bin/koha-functions.sh not present." 1>&2
  32     exit 1
  33 fi
  34
  35 usage()
  36 {
  37     local scriptname=$(basename $0)
  38
  39     cat <<EOF
  40 $scriptname
  41
  42 This script lets you manage the plack daemons for your Koha instances.
  43
  44 Usage:
  45 $scriptname --start|--stop|--restart [--quiet|-q] instancename1 [instancename2...]
  46 $scriptname --enable|--disable instancename1 [instancename2]
  47 $scriptname -h|--help
  48
  49     --start               Start the plack daemon for the specified instances
  50     --stop                Stop the plack daemon for the specified instances
  51     --restart             Restart the plack daemon for the specified instances
  52     --enable              Enable plack for the specified instances
  53     --disable             Disable plack for the specified instances
  54     --quiet|-q            Make the script quiet about non existent instance names
  55                           (useful for calling from another scripts).
  56     --help|-h             Display this help message
  57
  58 EOF
  59 }
  60
  61 start_plack()
  62 {
  63     local instancename=$1
  64
  65     local PIDFILE="/var/run/koha/${instancename}/plack.pid"
  66     local PLACKSOCKET="/var/run/koha/${instancename}/plack.sock"
  67     local PSGIFILE="/etc/koha/plack.psgi"
  68     local NAME="${instancename}-koha-plack"
  69
  70     if [ -e "/etc/koha/sites/${instancename}/plack.psgi" ]; then
  71         # pick instance-specific psgi file
  72         PSGIFILE="/etc/koha/sites/${instancename}/plack.psgi"
  73     fi # else stick with the default one
  74
  75     _check_and_fix_perms $instancename
  76
  77     STARMANOPTS="-M FindBin --max-requests 50 --workers 2 \
  78                  --user=${instancename}-koha --group ${instancename}-koha \
  79                  --pid ${PIDFILE} \
  80                  --daemonize \
  81                  --access-log /var/log/koha/${instancename}/plack.log \
  82                  --error-log /var/log/koha/${instancename}/plack-error.log \
  83                  -E deployment --socket ${PLACKSOCKET} ${PSGIFILE}"
  84
  85     if ! is_plack_running ${instancename}; then
  86         export KOHA_CONF="/etc/koha/sites/${instancename}/koha-conf.xml"
  87
  88         log_daemon_msg "Starting Plack daemon for ${instancename}"
  89
  90         if ${STARMAN} ${STARMANOPTS}; then
  91             log_end_msg 0
  92         else
  93             log_end_msg 1
  94         fi
  95     else
  96         log_daemon_msg "Error: Plack already running for ${instancename}"
  97         log_end_msg 1
  98     fi
  99 }
 100
 101 stop_plack()
 102 {
 103     local instancename=$1
 104
 105     local PIDFILE="/var/run/koha/${instancename}/plack.pid"
 106
 107     if is_plack_running ${instancename}; then
 108
 109         log_daemon_msg "Stopping Plack daemon for ${instancename}"
 110
 111         if start-stop-daemon --pidfile ${PIDFILE} --stop; then
 112             log_end_msg 0
 113         else
 114             log_end_msg 1
 115         fi
 116     else
 117         log_daemon_msg "Error: Plack not running for ${instancename}"
 118         log_end_msg 1
 119     fi
 120 }
 121
 122 restart_plack()
 123 {
 124     local instancename=$1
 125
 126     local PIDFILE="/var/run/koha/${instancename}/plack.pid"
 127
 128     if is_plack_running ${instancename}; then
 129
 130         log_daemon_msg "Restarting Plack daemon for ${instancename}"
 131
 132         if stop_plack $instancename && start_plack $instancename; then
 133             log_end_msg 0
 134         else
 135             log_end_msg 1
 136         fi
 137     else
 138         log_daemon_msg "Error: Plack not running for ${instancename}"
 139         log_end_msg 1
 140     fi
 141 }
 142
 143 enable_plack()
 144 {
 145     local instancename=$1
 146     local instancefile=$(get_apache_config_for "$instancename")
 147
 148     if ! is_plack_enabled $instancename; then
 149         # Uncomment the plack related lines for OPAC and intranet
 150         sed -i 's:^\s*#\(\s*Include /etc/koha/apache-shared-opac-plack.conf\)$:\1:' "$instancefile"
 151         sed -i 's:^\s*#\(\s*Include /etc/koha/apache-shared-intranet-plack.conf\)$:\1:' "$instancefile"
 152         [ "${quiet}" != "yes" ] && warn "Plack enabled for ${instancename}"
 153         return 0
 154     else
 155         [ "${quiet}" != "yes" ] && warn "Plack already enabled for ${instancename}"
 156         return 1
 157     fi
 158 }
 159
 160 disable_plack()
 161 {
 162     local instancename=$1
 163     local instancefile=$(get_apache_config_for "$instancename")
 164
 165     if is_plack_enabled $instancename; then
 166         # Comment out the plack related lines for OPAC and intranet
 167         sed -i 's:^\(\s*Include /etc/koha/apache-shared-opac-plack.conf\)$:#\1:' "$instancefile"
 168         sed -i 's:^\(\s*Include /etc/koha/apache-shared-intranet-plack.conf\)$:#\1:' "$instancefile"
 169         [ "${quiet}" != "yes" ] && warn "Plack disabled for ${instancename}"
 170         return 0
 171     else
 172         [ "${quiet}" != "yes" ] && warn "Plack already disabled for ${instancename}"
 173         return 1
 174     fi
 175 }
 176
 177 check_env_and_warn()
 178 {
 179     local apache_version_ok="no"
 180     local required_modules="headers proxy_http"
 181     local missing_modules=""
 182
 183     if /usr/sbin/apache2ctl -v | grep -q "Server version: Apache/2.4"; then
 184         apache_version_ok="yes"
 185     fi
 186
 187     for module in ${required_modules}; do
 188         if ! /usr/sbin/apachectl -M 2> /dev/null | grep -q ${module}; then
 189             missing_modules="${missing_modules}${module} "
 190         fi
 191     done
 192
 193     if [ "${apache_version_ok}" != "yes" ]; then
 194         warn "WARNING: koha-plack requires Apache 2.4.x and you don't have that."
 195     fi
 196
 197     if [ "${missing_modules}" != "" ]; then
 198         cat 1>&2 <<EOM
 199 WARNING: koha-plack requires some Apache modules that you are missing.
 200 You can install them with:
 201
 202     sudo a2enmod ${missing_modules}
 203
 204 EOM
 205
 206     fi
 207 }
 208
 209 _check_and_fix_perms()
 210 {
 211     local instance=$1
 212
 213     local files="/var/log/koha/${instance}/plack.log \
 214                  /var/log/koha/${instance}/plack-error.log"
 215
 216     for file in ${files}
 217     do
 218         if [ ! -e "${file}" ]; then
 219             touch ${file}
 220         fi
 221         chown "${instance}-koha":"${instance}-koha" ${file}
 222     done
 223 }
 224
 225 set_action()
 226 {
 227     if [ "$op" = "" ]; then
 228         op=$1
 229     else
 230         die "Error: only one action can be specified."
 231     fi
 232 }
 233
 234 adjust_paths()
 235 {
 236     # Optionally use alternative paths for a dev install
 237     adjust_paths_dev_install $1
 238
 239     # PERL5LIB has been read from etc/default, add lib/installer
 240     # export some vars (for plack.psgi)
 241     export KOHA_HOME
 242     if [ "$DEV_INSTALL" = "" ]; then
 243         export PERL5LIB=$PERL5LIB:$KOHA_HOME/lib/installer
 244     else
 245         export DEV_INSTALL
 246         export PERL5LIB=$PERL5LIB:$KOHA_HOME/installer
 247     fi
 248 }
 249
 250 STARMAN=$(which starman)
 251 op=""
 252 quiet="no"
 253
 254 # Read command line parameters
 255 while [ $# -gt 0 ]; do
 256
 257     case "$1" in
 258         -h|--help)
 259             usage ; exit 0 ;;
 260         -q|--quiet)
 261             quiet="yes"
 262             shift ;;
 263         --start)
 264             set_action "start"
 265             shift ;;
 266         --stop)
 267             set_action "stop"
 268             shift ;;
 269         --restart)
 270             set_action "restart"
 271             shift ;;
 272         --enable)
 273             set_action "enable"
 274             shift ;;
 275         --disable)
 276             set_action "disable"
 277             shift ;;
 278         -*)
 279             die "Error: invalid option switch ($1)" ;;
 280         *)
 281             # We expect the remaining stuff are the instance names
 282             break ;;
 283     esac
 284
 285 done
 286
 287 [ "${quiet}" != "yes" ] && check_env_and_warn
 288
 289 if [ $# -gt 0 ]; then
 290     # We have at least one instance name
 291     for name in "$@"; do
 292
 293         if is_instance $name; then
 294
 295             adjust_paths $name
 296             case $op in
 297                 "start")
 298                     start_plack $name
 299                     ;;
 300                 "stop")
 301                     stop_plack $name
 302                     ;;
 303                 "restart")
 304                     restart_plack $name
 305                     ;;
 306                 "enable")
 307                     enable_plack $name
 308                     ;;
 309                 "disable")
 310                     disable_plack $name
 311                     ;;
 312                 *)
 313                     usage
 314                     ;;
 315             esac
 316
 317         else
 318             if [ "$quiet" = "no" ]; then
 319                 log_daemon_msg "Error: Invalid instance name $name"
 320                 log_end_msg 1
 321             fi
 322         fi
 323
 324     done
 325 else
 326     if [ "$quiet" = "no" ]; then
 327         warn "Error: you must provide at least one instance name"
 328     fi
 329 fi
 330
 331 exit 0