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: httpd,v 1.11 2007/02/06 16:24:13 mlhuang Exp $
  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 case "$1" in
  28     start)
  29         if [ "$PLC_API_ENABLED" != "1" -a \
  30              "$PLC_BOOT_ENABLED" != "1" -a \
  31              "$PLC_WWW_ENABLED" != "1" ] ; then
  32             exit 0
  33         fi
  34
  35         MESSAGE=$"Starting web server"
  36         dialog "$MESSAGE"
  37
  38         # Set the document root to /data/var/www/html (static files
  39         # and PlanetLabConf only, no Drupal or admin pages) if the web
  40         # server should not run on this machine.
  41         if [ "$PLC_WWW_ENABLED" != "1" ] ; then
  42             sed -i -e "s@^DocumentRoot.*@DocumentRoot \"/data$DocumentRoot\"@" $httpd_conf
  43             ln -nsf $DocumentRoot/PlanetLabConf /data$DocumentRoot/PlanetLabConf
  44         else
  45             sed -i -e "s@^DocumentRoot.*@DocumentRoot \"$DocumentRoot\"@" $httpd_conf
  46             rm -f /data$DocumentRoot/PlanetLabConf
  47         fi
  48
  49         # Set the default include path
  50         include_path=".:$DocumentRoot/planetlab/includes:$DocumentRoot/generated:/etc/planetlab/php:/usr/share/plc_api/php"
  51         sed -i -e "s@[;]*include_path = \"\.:.*\"@include_path = \"$include_path\"@" $php_ini
  52
  53         # Disable default Listen directive
  54         sed -i -e '/^Listen/d' $httpd_conf
  55
  56         # Set the port numbers
  57         for server in WWW API BOOT ; do
  58             enabled=PLC_${server}_ENABLED
  59             if [ "${!enabled}" != "1" ] ; then
  60                 continue
  61             fi
  62             hostname=PLC_${server}_HOST
  63             http_port=PLC_${server}_PORT
  64             https_port=PLC_${server}_SSL_PORT
  65
  66             # API should always be accessed via SSL
  67             if [ "$server" = "API" ] ; then
  68                 https_port=${!http_port}
  69                 http_port=
  70             fi
  71
  72             # Check if we are already listening on these ports
  73             skip_http=0
  74             skip_https=0
  75             for previous_server in WWW API BOOT ; do
  76                 if [ "$server" = "$previous_server" ] ; then
  77                     break
  78                 fi
  79                 previous_enabled=PLC_${previous_server}_ENABLED
  80                 if [ "${!previous_enabled}" != "1" ] ; then
  81                     continue
  82                 fi
  83                 previous_http_port=PLC_${previous_server}_PORT
  84                 previous_https_port=PLC_${previous_server}_SSL_PORT
  85
  86                 if [ "${!http_port}" = "${!previous_http_port}" ] ; then
  87                     skip_http=1
  88                 fi
  89                 if [ "${!https_port}" = "${!previous_https_port}" ] ; then
  90                     skip_https=1
  91                 fi
  92             done
  93
  94             # HTTP configuration
  95             if [ $skip_http -eq 0 -a -n "${!http_port}" ] ; then
  96                 cat <<EOF
  97 Listen ${!http_port}
  98 # Make sure that the admin web pages and API are always accessed via SSL
  99 <VirtualHost *:${!http_port}>
 100     Redirect /db https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/db
 101     Redirect /planetlab https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/planetlab
 102     Redirect /$PLC_API_PATH https://$PLC_API_HOST:$PLC_API_PORT/$PLC_API_PATH
 103 </VirtualHost>
 104 EOF
 105             fi
 106
 107             # HTTPS configuration
 108             if [ $skip_https -eq 0 -a -n "${!https_port}" ] ; then
 109                 # XXX Cannot support NameVirtualHost over SSL. If
 110                 # the API, boot, and web servers are all running
 111                 # on the same machine, the web server certificate
 112                 # takes precedence.
 113                 sed -i \
 114                     -e "s/^Listen .*/Listen ${!https_port}/" \
 115                     -e "s/<VirtualHost _default_:.*>/<VirtualHost _default_:${!https_port}>/" \
 116                     $ssl_conf
 117             fi
 118         done >$plc_conf
 119
 120         # Set custom Apache directives
 121         (
 122             if [ "$PLC_API_ENABLED" = "1" ] ; then
 123                 cat <<EOF
 124 <Location $PLC_API_PATH>
 125     SetHandler mod_python
 126     PythonPath "sys.path + ['/usr/share/plc_api']"
 127     PythonHandler ModPython
 128 </Location>
 129 EOF
 130             else
 131                 cat <<EOF
 132 <Location $PLC_API_PATH>
 133     Deny from all
 134 </Location>
 135 EOF
 136             fi
 137
 138             if [ "$PLC_WWW_ENABLED" != "1" ] ; then
 139                 cat <<EOF
 140 Redirect /index.html http://$PLC_WWW_HOST:$PLC_WWW_PORT/
 141 EOF
 142             fi
 143         ) >>$plc_conf
 144
 145         # Make alpina-logs directory writable for bootmanager log upload
 146         chown apache:apache $DocumentRoot/alpina-logs/nodes
 147
 148         # Make the Drupal files upload directory owned by Apache
 149         mkdir -p $DocumentRoot/files
 150         chown apache:apache $DocumentRoot/files
 151
 152         # Symlink any (real) files or directories in
 153         # /data/var/www/html/* to /var/www/html/. We could descend
 154         # into subdirectories, but the code to do so properly would be
 155         # madness.
 156         for file in /data/$DocumentRoot/* ; do
 157             if [ -e "$file" -a ! -h "$file" ] ; then
 158                 base=$(basename "$file")
 159                 if [ ! -e "$DocumentRoot/$base" ] ; then
 160                     ln -nsf "$file" "$DocumentRoot/$base"
 161                 fi
 162             fi
 163         done
 164
 165         # Cleanup broken symlinks
 166         for file in $DocumentRoot/* ; do
 167             if [ -h "$file" -a ! -e "$file" ] ; then
 168                 rm -f "$file"
 169             fi
 170         done
 171
 172         # Old style PHP constants
 173         mkdir -p /etc/planetlab/php
 174         cat >/etc/planetlab/php/site_constants.php <<"EOF"
 175 <?php
 176 include('plc_config.php');
 177
 178 define('PL_API_SERVER', PLC_API_HOST);
 179 define('PL_API_PATH', PLC_API_PATH);
 180 define('PL_API_PORT', PLC_API_PORT);
 181 define('PL_API_CAPABILITY_AUTH_METHOD', 'capability');
 182 define('PL_API_CAPABILITY_PASS', PLC_API_MAINTENANCE_PASSWORD);
 183 define('PL_API_CAPABILITY_USERNAME', PLC_API_MAINTENANCE_USER);
 184 define('WWW_BASE', PLC_WWW_HOST);
 185 define('BOOT_BASE', PLC_BOOT_HOST);
 186 define('DEBUG', PLC_WWW_DEBUG);
 187 define('API_CALL_DEBUG', PLC_API_DEBUG);
 188 define('SENDMAIL', PLC_MAIL_ENABLED);
 189 define('PLANETLAB_SUPPORT_EMAIL', PLC_NAME . ' Support <' . PLC_MAIL_SUPPORT_ADDRESS . '>');
 190 define('PLANETLAB_SUPPORT_EMAIL_ONLY', PLC_MAIL_SUPPORT_ADDRESS);
 191 ?>
 192 EOF
 193
 194         plc_daemon httpd
 195         check
 196
 197         result "$MESSAGE"
 198         ;;
 199
 200     stop)
 201         MESSAGE=$"Stopping web server"
 202         dialog "$MESSAGE"
 203
 204         killproc plc_httpd
 205         check
 206
 207         result "$MESSAGE"
 208         ;;
 209 esac
 210
 211 exit $ERRORS