plc.d/httpd

   1 #!/bin/bash
   2 #
   3 # priority: 700
   4 #
   5 # Configure Apache web server
   6 #
   7 # Mark Huang <mlhuang@cs.princeton.edu>
   8 # Copyright (C) 2006 The Trustees of Princeton University
   9 #
  10 # $Id$
  11 #
  12
  13 # Source function library and configuration
  14 . /etc/plc.d/functions
  15 . /etc/planetlab/plc_config
  16
  17 # Be verbose
  18 set -x
  19
  20 # Default locations
  21 DocumentRoot=/var/www/html
  22 php_ini=/etc/php.ini
  23 httpd_conf=/etc/httpd/conf/httpd.conf
  24 ssl_conf=/etc/httpd/conf.d/ssl.conf
  25 plc_conf=/etc/httpd/conf.d/plc.conf
  26
  27 function disable_file () {
  28     file=$1; shift
  29     [ -f $file ] && mv -f $file $file.disabled
  30 }
  31 function enable_file () {
  32     file=$1; shift
  33     [ ! -f $file ] && mv -f $file.disabled $file
  34 }
  35
  36 case "$1" in
  37     start)
  38         if [ "$PLC_API_ENABLED" != "1" -a \
  39              "$PLC_BOOT_ENABLED" != "1" -a \
  40              "$PLC_WWW_ENABLED" != "1" ] ; then
  41             exit 0
  42         fi
  43
  44         MESSAGE=$"Starting web server"
  45         dialog "$MESSAGE"
  46
  47         # set document root - not really useful on fedora but just in case
  48         sed -i -e "s@^DocumentRoot.*@DocumentRoot \"$DocumentRoot\"@" $httpd_conf
  49         # whether WWW is enabled or not :
  50         if [ "$PLC_WWW_ENABLED" != "1" ] ; then
  51             # avoid hitting drupal, that would try to connect to the db and create noise
  52             disable_file $DocumentRoot/index.php
  53         else
  54             enable_file $DocumentRoot/index.php
  55         fi
  56
  57         # Set the default include path
  58         include_path=".:$DocumentRoot/planetlab/includes:$DocumentRoot/plekit/php:$DocumentRoot/generated:/etc/planetlab/php:/usr/share/plc_api/php"
  59         sed -i -e "s@[;]*include_path = \"\.:.*\"@include_path = \"$include_path\"@" $php_ini
  60
  61         # for php-5.3 under fedora12, otherwise issues tons of warning messages
  62         # Set timezone in php.ini if not already there
  63         if grep '^;date.timezone' $php_ini >& /dev/null; then
  64             dialog 'Setting PHP timezone to GMT'
  65             sed -i -e 's,^;date.timezone.*,date.timezone = GMT,' $php_ini
  66         fi
  67
  68         if grep '^short_open_tag = Off' $php_ini >& /dev/null; then
  69             sed -i -e 's,^short_open_tag = Off,short_open_tag = On,' $php_ini
  70         fi
  71
  72         # Disable default Listen directive
  73         sed -i -e '/^Listen/d' $httpd_conf
  74
  75         # Set the port numbers
  76         for server in WWW API BOOT ; do
  77             enabled=PLC_${server}_ENABLED
  78             if [ "${!enabled}" != "1" ] ; then
  79                 continue
  80             fi
  81             hostname=PLC_${server}_HOST
  82             http_port=PLC_${server}_PORT
  83             https_port=PLC_${server}_SSL_PORT
  84
  85             # API should always be accessed via SSL
  86             if [ "$server" = "API" ] ; then
  87                 https_port=${!http_port}
  88                 http_port=
  89             fi
  90
  91             # Check if we are already listening on these ports
  92             skip_http=0
  93             skip_https=0
  94             for previous_server in WWW API BOOT ; do
  95                 if [ "$server" = "$previous_server" ] ; then
  96                     break
  97                 fi
  98                 previous_enabled=PLC_${previous_server}_ENABLED
  99                 if [ "${!previous_enabled}" != "1" ] ; then
 100                     continue
 101                 fi
 102                 previous_http_port=PLC_${previous_server}_PORT
 103                 previous_https_port=PLC_${previous_server}_SSL_PORT
 104
 105                 if [ "${!http_port}" = "${!previous_http_port}" ] ; then
 106                     skip_http=1
 107                 fi
 108                 if [ "${!https_port}" = "${!previous_https_port}" ] ; then
 109                     skip_https=1
 110                 fi
 111             done
 112
 113             # HTTP configuration
 114             if [ $skip_http -eq 0 -a -n "${!http_port}" ] ; then
 115                 cat <<EOF
 116 Listen ${!http_port}
 117 # Make sure that the admin web pages and API are always accessed via SSL
 118 <VirtualHost *:${!http_port}>
 119     Redirect /db https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/db
 120     Redirect /planetlab https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/planetlab
 121     Redirect /$PLC_API_PATH https://$PLC_API_HOST:$PLC_API_PORT/$PLC_API_PATH
 122 </VirtualHost>
 123 EOF
 124             fi
 125
 126             # HTTPS configuration
 127             if [ $skip_https -eq 0 -a -n "${!https_port}" ] ; then
 128                 # XXX Cannot support NameVirtualHost over SSL. If
 129                 # the API, boot, and web servers are all running
 130                 # on the same machine, the web server certificate
 131                 # takes precedence.
 132                 sed -i \
 133                     -e "s/^Listen .*/Listen ${!https_port}/" \
 134                     -e "s/<VirtualHost _default_:.*>/<VirtualHost _default_:${!https_port}>/" \
 135                     $ssl_conf
 136             fi
 137         done >$plc_conf
 138
 139         # Set custom Apache directives
 140         (
 141             if [ "$PLC_API_ENABLED" = "1" ] ; then
 142                 cat <<EOF
 143 <Location $PLC_API_PATH>
 144     SetHandler mod_python
 145     PythonPath "sys.path + ['/usr/share/plc_api']"
 146     PythonHandler ModPython
 147 </Location>
 148 EOF
 149             else
 150                 cat <<EOF
 151 <Location $PLC_API_PATH>
 152     Deny from all
 153 </Location>
 154 EOF
 155             fi
 156
 157             if [ "$PLC_WWW_ENABLED" != "1" ] ; then
 158                 cat <<EOF
 159 Redirect /index.html http://$PLC_WWW_HOST:$PLC_WWW_PORT/
 160 EOF
 161             fi
 162             cat <<EOF
 163 AddType application/octet-stream .iso
 164 AddType application/octet-stream .usb
 165 EOF
 166         ) >>$plc_conf
 167
 168         # Make alpina-logs directory writable for bootmanager log upload
 169         chown apache:apache $DocumentRoot/alpina-logs/nodes
 170
 171         # Make the Drupal files upload directory owned by Apache
 172         mkdir -p $DocumentRoot/files
 173         chown apache:apache $DocumentRoot/files
 174
 175         # Symlink any (real) files or directories in
 176         # /data/var/www/html/* to /var/www/html/. We could descend
 177         # into subdirectories, but the code to do so properly would be
 178         # madness.
 179         for file in /data/$DocumentRoot/* ; do
 180             if [ -e "$file" -a ! -h "$file" ] ; then
 181                 base=$(basename "$file")
 182                 if [ ! -e "$DocumentRoot/$base" ] ; then
 183                     ln -nsf "$file" "$DocumentRoot/$base"
 184                 fi
 185             fi
 186         done
 187
 188         # Cleanup broken symlinks
 189         for file in $DocumentRoot/* ; do
 190             if [ -h "$file" -a ! -e "$file" ] ; then
 191                 rm -f "$file"
 192             fi
 193         done
 194
 195         # Old style PHP constants
 196         mkdir -p /etc/planetlab/php
 197         cat >/etc/planetlab/php/site_constants.php <<"EOF"
 198 <?php
 199 include('plc_config.php');
 200
 201 define('PL_API_SERVER', PLC_API_HOST);
 202 define('PL_API_PATH', PLC_API_PATH);
 203 define('PL_API_PORT', PLC_API_PORT);
 204 define('PL_API_CAPABILITY_AUTH_METHOD', 'capability');
 205 define('PL_API_CAPABILITY_PASS', PLC_API_MAINTENANCE_PASSWORD);
 206 define('PL_API_CAPABILITY_USERNAME', PLC_API_MAINTENANCE_USER);
 207 define('WWW_BASE', PLC_WWW_HOST);
 208 define('BOOT_BASE', PLC_BOOT_HOST);
 209 define('DEBUG', PLC_WWW_DEBUG);
 210 define('API_CALL_DEBUG', PLC_API_DEBUG);
 211 define('SENDMAIL', PLC_MAIL_ENABLED);
 212 define('PLANETLAB_SUPPORT_EMAIL', PLC_NAME . ' Support <' . PLC_MAIL_SUPPORT_ADDRESS . '>');
 213 define('PLANETLAB_SUPPORT_EMAIL_ONLY', PLC_MAIL_SUPPORT_ADDRESS);
 214 ?>
 215 EOF
 216
 217         ## patch php.ini
 218         # memory limit
 219         sed -i -e 's,^memory_limit = 32M *;,memory_limit = 80M ; patch myplc -- ,' $php_ini
 220         # log_errors : is On by default
 221         # error_log
 222         if ! grep '^error_log *=' $php_ini > /dev/null ; then
 223           echo 'error_log = /var/log/php.log' >> $php_ini
 224           touch /var/log/php.log
 225           chmod 666 /var/log/php.log
 226         fi
 227
 228         plc_daemon httpd
 229         check
 230
 231         result "$MESSAGE"
 232         ;;
 233
 234     stop)
 235         MESSAGE=$"Stopping web server"
 236         dialog "$MESSAGE"
 237
 238         killproc plc_httpd
 239         check
 240
 241         result "$MESSAGE"
 242         ;;
 243 esac
 244
 245 exit $ERRORS