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         # Disable default Listen directive
  62         sed -i -e '/^Listen/d' $httpd_conf
  63
  64         # Set the port numbers
  65         for server in WWW API BOOT ; do
  66             enabled=PLC_${server}_ENABLED
  67             if [ "${!enabled}" != "1" ] ; then
  68                 continue
  69             fi
  70             hostname=PLC_${server}_HOST
  71             http_port=PLC_${server}_PORT
  72             https_port=PLC_${server}_SSL_PORT
  73
  74             # API should always be accessed via SSL
  75             if [ "$server" = "API" ] ; then
  76                 https_port=${!http_port}
  77                 http_port=
  78             fi
  79
  80             # Check if we are already listening on these ports
  81             skip_http=0
  82             skip_https=0
  83             for previous_server in WWW API BOOT ; do
  84                 if [ "$server" = "$previous_server" ] ; then
  85                     break
  86                 fi
  87                 previous_enabled=PLC_${previous_server}_ENABLED
  88                 if [ "${!previous_enabled}" != "1" ] ; then
  89                     continue
  90                 fi
  91                 previous_http_port=PLC_${previous_server}_PORT
  92                 previous_https_port=PLC_${previous_server}_SSL_PORT
  93
  94                 if [ "${!http_port}" = "${!previous_http_port}" ] ; then
  95                     skip_http=1
  96                 fi
  97                 if [ "${!https_port}" = "${!previous_https_port}" ] ; then
  98                     skip_https=1
  99                 fi
 100             done
 101
 102             # HTTP configuration
 103             if [ $skip_http -eq 0 -a -n "${!http_port}" ] ; then
 104                 cat <<EOF
 105 Listen ${!http_port}
 106 # Make sure that the admin web pages and API are always accessed via SSL
 107 <VirtualHost *:${!http_port}>
 108     Redirect /db https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/db
 109     Redirect /planetlab https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/planetlab
 110     Redirect /$PLC_API_PATH https://$PLC_API_HOST:$PLC_API_PORT/$PLC_API_PATH
 111 </VirtualHost>
 112 EOF
 113             fi
 114
 115             # HTTPS configuration
 116             if [ $skip_https -eq 0 -a -n "${!https_port}" ] ; then
 117                 # XXX Cannot support NameVirtualHost over SSL. If
 118                 # the API, boot, and web servers are all running
 119                 # on the same machine, the web server certificate
 120                 # takes precedence.
 121                 sed -i \
 122                     -e "s/^Listen .*/Listen ${!https_port}/" \
 123                     -e "s/<VirtualHost _default_:.*>/<VirtualHost _default_:${!https_port}>/" \
 124                     $ssl_conf
 125             fi
 126         done >$plc_conf
 127
 128         # Set custom Apache directives
 129         (
 130             if [ "$PLC_API_ENABLED" = "1" ] ; then
 131                 cat <<EOF
 132 <Location $PLC_API_PATH>
 133     SetHandler mod_python
 134     PythonPath "sys.path + ['/usr/share/plc_api']"
 135     PythonHandler ModPython
 136 </Location>
 137 EOF
 138             else
 139                 cat <<EOF
 140 <Location $PLC_API_PATH>
 141     Deny from all
 142 </Location>
 143 EOF
 144             fi
 145
 146             if [ "$PLC_WWW_ENABLED" != "1" ] ; then
 147                 cat <<EOF
 148 Redirect /index.html http://$PLC_WWW_HOST:$PLC_WWW_PORT/
 149 EOF
 150             fi
 151             cat <<EOF
 152 AddType application/octet-stream .iso
 153 AddType application/octet-stream .usb
 154 EOF
 155         ) >>$plc_conf
 156
 157         # Make alpina-logs directory writable for bootmanager log upload
 158         chown apache:apache $DocumentRoot/alpina-logs/nodes
 159
 160         # Make the Drupal files upload directory owned by Apache
 161         mkdir -p $DocumentRoot/files
 162         chown apache:apache $DocumentRoot/files
 163
 164         # Symlink any (real) files or directories in
 165         # /data/var/www/html/* to /var/www/html/. We could descend
 166         # into subdirectories, but the code to do so properly would be
 167         # madness.
 168         for file in /data/$DocumentRoot/* ; do
 169             if [ -e "$file" -a ! -h "$file" ] ; then
 170                 base=$(basename "$file")
 171                 if [ ! -e "$DocumentRoot/$base" ] ; then
 172                     ln -nsf "$file" "$DocumentRoot/$base"
 173                 fi
 174             fi
 175         done
 176
 177         # Cleanup broken symlinks
 178         for file in $DocumentRoot/* ; do
 179             if [ -h "$file" -a ! -e "$file" ] ; then
 180                 rm -f "$file"
 181             fi
 182         done
 183
 184         # Old style PHP constants
 185         mkdir -p /etc/planetlab/php
 186         cat >/etc/planetlab/php/site_constants.php <<"EOF"
 187 <?php
 188 include('plc_config.php');
 189
 190 define('PL_API_SERVER', PLC_API_HOST);
 191 define('PL_API_PATH', PLC_API_PATH);
 192 define('PL_API_PORT', PLC_API_PORT);
 193 define('PL_API_CAPABILITY_AUTH_METHOD', 'capability');
 194 define('PL_API_CAPABILITY_PASS', PLC_API_MAINTENANCE_PASSWORD);
 195 define('PL_API_CAPABILITY_USERNAME', PLC_API_MAINTENANCE_USER);
 196 define('WWW_BASE', PLC_WWW_HOST);
 197 define('BOOT_BASE', PLC_BOOT_HOST);
 198 define('DEBUG', PLC_WWW_DEBUG);
 199 define('API_CALL_DEBUG', PLC_API_DEBUG);
 200 define('SENDMAIL', PLC_MAIL_ENABLED);
 201 define('PLANETLAB_SUPPORT_EMAIL', PLC_NAME . ' Support <' . PLC_MAIL_SUPPORT_ADDRESS . '>');
 202 define('PLANETLAB_SUPPORT_EMAIL_ONLY', PLC_MAIL_SUPPORT_ADDRESS);
 203 ?>
 204 EOF
 205
 206         ## patch php.ini
 207         # memory limit
 208         sed -i -e 's,^memory_limit = 32M *;,memory_limit = 80M ; patch myplc -- ,' $php_ini
 209         # log_errors : is On by default
 210         # error_log
 211         if ! grep '^error_log *=' $php_ini > /dev/null ; then
 212           echo 'error_log = /var/log/php.log' >> $php_ini
 213           touch /var/log/php.log
 214           chmod 666 /var/log/php.log
 215         fi
 216
 217         plc_daemon httpd
 218         check
 219
 220         result "$MESSAGE"
 221         ;;
 222
 223     stop)
 224         MESSAGE=$"Stopping web server"
 225         dialog "$MESSAGE"
 226
 227         killproc plc_httpd
 228         check
 229
 230         result "$MESSAGE"
 231         ;;
 232 esac
 233
 234 exit $ERRORS