plc.d/httpd

   1 #!/bin/bash
   2 #
   3 # priority: 600
   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
  11 # Source function library and configuration
  12 . /etc/plc.d/functions
  13 . /etc/planetlab/plc_config
  14
  15 # Be verbose
  16 set -x
  17
  18 # Default locations
  19 DocumentRoot=/var/www/html
  20 php_ini=/etc/php.ini
  21 httpd_conf=/etc/httpd/conf/httpd.conf
  22 ssl_conf=/etc/httpd/conf.d/ssl.conf
  23 plc_conf=/etc/httpd/conf.d/plc.conf
  24
  25 function disable_file () {
  26     file=$1; shift
  27     [ -f $file ] && mv -f $file $file.disabled
  28 }
  29 function enable_file () {
  30     file=$1; shift
  31     [ ! -f $file ] && mv -f $file.disabled $file
  32 }
  33
  34 case "$1" in
  35     start)
  36         if [ "$PLC_API_ENABLED" != "1" -a \
  37              "$PLC_BOOT_ENABLED" != "1" -a \
  38              "$PLC_WWW_ENABLED" != "1" ] ; then
  39             exit 0
  40         fi
  41
  42         MESSAGE=$"Starting web server"
  43         dialog "$MESSAGE"
  44
  45         # set document root - not really useful on fedora but just in case
  46         sed -i -e "s@^DocumentRoot.*@DocumentRoot \"$DocumentRoot\"@" $httpd_conf
  47         # whether WWW is enabled or not :
  48         if [ "$PLC_WWW_ENABLED" != "1" ] ; then
  49             # avoid hitting drupal, that would try to connect to the db and create noise
  50             disable_file $DocumentRoot/index.php
  51         else
  52             enable_file $DocumentRoot/index.php
  53         fi
  54
  55         # Set the default include path
  56         include_path=".:$DocumentRoot/planetlab/includes:$DocumentRoot/plekit/php:$DocumentRoot/generated:/etc/planetlab/php:/usr/share/plc_api/php"
  57         sed -i -e "s@[;]*include_path = \"\.:.*\"@include_path = \"$include_path\"@" $php_ini
  58
  59         # Set open_basedir so as to avoid leaks
  60         open_basedir="$DocumentRoot:/etc/planetlab/php:/usr/share/plc_api/php:/var/log/myslice:/var/tmp/bootmedium:/tmp"
  61         sed -i -e "s@[;]*open_basedir =.*@open_basedir = \"$open_basedir\"@" $php_ini
  62
  63         # for php-5.3 under fedora12, otherwise issues tons of warning messages
  64         # Set timezone in php.ini if not already there
  65         if grep '^;date.timezone' $php_ini >& /dev/null; then
  66             dialog 'Setting PHP timezone to GMT'
  67             sed -i -e 's,^;date.timezone.*,date.timezone = GMT,' $php_ini
  68         fi
  69
  70         if grep '^short_open_tag = Off' $php_ini >& /dev/null; then
  71             sed -i -e 's,^short_open_tag = Off,short_open_tag = On,' $php_ini
  72         fi
  73
  74         # Disable default Listen directive
  75         sed -i -e '/^Listen/d' $httpd_conf
  76
  77         # Set the port numbers
  78         for server in WWW API BOOT ; do
  79             enabled=PLC_${server}_ENABLED
  80             if [ "${!enabled}" != "1" ] ; then
  81                 continue
  82             fi
  83             hostname=PLC_${server}_HOST
  84             http_port=PLC_${server}_PORT
  85             https_port=PLC_${server}_SSL_PORT
  86
  87             # API should always be accessed via SSL
  88             if [ "$server" = "API" ] ; then
  89                 https_port=${!http_port}
  90                 http_port=
  91             fi
  92
  93             # Check if we are already listening on these ports
  94             skip_http=0
  95             skip_https=0
  96             for previous_server in WWW API BOOT ; do
  97                 if [ "$server" = "$previous_server" ] ; then
  98                     break
  99                 fi
 100                 previous_enabled=PLC_${previous_server}_ENABLED
 101                 if [ "${!previous_enabled}" != "1" ] ; then
 102                     continue
 103                 fi
 104                 previous_http_port=PLC_${previous_server}_PORT
 105                 previous_https_port=PLC_${previous_server}_SSL_PORT
 106
 107                 if [ "${!http_port}" = "${!previous_http_port}" ] ; then
 108                     skip_http=1
 109                 fi
 110                 if [ "${!https_port}" = "${!previous_https_port}" ] ; then
 111                     skip_https=1
 112                 fi
 113             done
 114
 115             # mod_python being retired as of fedora18 we go for mod_wsgi instead
 116             PLC_API_PATH_WSGI=$PLC_API_PATH
 117
 118             # HTTP configuration
 119             if [ $skip_http -eq 0 -a -n "${!http_port}" ] ; then
 120                 cat <<EOF
 121 Listen ${!http_port}
 122 # create wsgi socket where we have the permission
 123 ### WSGISocketPrefix run/wsgi
 124 # Make sure that the admin web pages and API are always accessed via SSL
 125 <VirtualHost *:${!http_port}>
 126     Redirect /db https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/db
 127     Redirect /planetlab https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/planetlab
 128     Redirect /$PLC_API_PATH https://$PLC_API_HOST:$PLC_API_PORT/$PLC_API_PATH
 129     WSGIScriptAlias $PLC_API_PATH_WSGI /usr/share/plc_api/ModWSGI.wsgi
 130     # xxx make processes and threads configurable
 131     WSGIDaemonProcess plcapi-wsgi user=apache group=apache processes=1 threads=25
 132     WSGIProcessGroup plcapi-wsgi
 133 </VirtualHost>
 134 EOF
 135             fi
 136
 137             # HTTPS configuration
 138             if [ $skip_https -eq 0 -a -n "${!https_port}" ] ; then
 139                 # XXX Cannot support NameVirtualHost over SSL. If
 140                 # the API, boot, and web servers are all running
 141                 # on the same machine, the web server certificate
 142                 # takes precedence.
 143                 sed -i \
 144                     -e "s/^Listen .*/Listen ${!https_port}/" \
 145                     -e "s/<VirtualHost _default_:.*>/<VirtualHost _default_:${!https_port}>/" \
 146                     $ssl_conf
 147             fi
 148         done >$plc_conf
 149
 150         # Set custom Apache directives
 151         (
 152             if [ "$PLC_API_ENABLED" = "1" ] ; then
 153                 cat <<EOF
 154 #### mod_python location - turned off
 155 ###<Location $PLC_API_PATH>
 156 ###    SetHandler mod_python
 157 ###    PythonPath "sys.path + ['/usr/share/plc_api']"
 158 ###    PythonHandler ModPython
 159 ###</Location>
 160
 161 # mod_wsgi location - enabled
 162 <Location $PLC_API_PATH_WSGI>
 163      SetHandler mod_wsgi
 164 </Location>
 165 EOF
 166             else
 167                 cat <<EOF
 168 #### mod_python location - turned off
 169 ###<Location $PLC_API_PATH>
 170 ###    Deny from all
 171 ###</Location>
 172
 173 # mod_wsgi location
 174 <Location $PLC_API_PATH_WSGI>
 175     Deny from all
 176 </Location>
 177 EOF
 178             fi
 179
 180             if [ "$PLC_WWW_ENABLED" != "1" ] ; then
 181                 cat <<EOF
 182 Redirect /index.html http://$PLC_WWW_HOST:$PLC_WWW_PORT/
 183 EOF
 184             fi
 185             cat <<EOF
 186 AddType application/octet-stream .iso
 187 AddType application/octet-stream .usb
 188 EOF
 189         ) >>$plc_conf
 190
 191         # Make alpina-logs directory writable for bootmanager log upload
 192         chown apache:apache $DocumentRoot/alpina-logs/nodes
 193
 194         # Make the Drupal files upload directory owned by Apache
 195         mkdir -p $DocumentRoot/files
 196         chown apache:apache $DocumentRoot/files
 197
 198         # Symlink any (real) files or directories in
 199         # /data/var/www/html/* to /var/www/html/. We could descend
 200         # into subdirectories, but the code to do so properly would be
 201         # madness.
 202         for file in /data/$DocumentRoot/* ; do
 203             if [ -e "$file" -a ! -h "$file" ] ; then
 204                 base=$(basename "$file")
 205                 if [ ! -e "$DocumentRoot/$base" ] ; then
 206                     ln -nsf "$file" "$DocumentRoot/$base"
 207                 fi
 208             fi
 209         done
 210
 211         # Cleanup broken symlinks
 212         for file in $DocumentRoot/* ; do
 213             if [ -h "$file" -a ! -e "$file" ] ; then
 214                 rm -f "$file"
 215             fi
 216         done
 217
 218         # Old style PHP constants
 219         mkdir -p /etc/planetlab/php
 220         cat >/etc/planetlab/php/site_constants.php <<"EOF"
 221 <?php
 222 include('plc_config.php');
 223
 224 define('PL_API_SERVER', PLC_API_HOST);
 225 define('PL_API_PATH', PLC_API_PATH);
 226 define('PL_API_PORT', PLC_API_PORT);
 227 define('PL_API_CAPABILITY_AUTH_METHOD', 'capability');
 228 define('PL_API_CAPABILITY_PASS', PLC_API_MAINTENANCE_PASSWORD);
 229 define('PL_API_CAPABILITY_USERNAME', PLC_API_MAINTENANCE_USER);
 230 define('WWW_BASE', PLC_WWW_HOST);
 231 define('BOOT_BASE', PLC_BOOT_HOST);
 232 define('DEBUG', PLC_WWW_DEBUG);
 233 define('API_CALL_DEBUG', PLC_API_DEBUG);
 234 define('SENDMAIL', PLC_MAIL_ENABLED);
 235 define('PLANETLAB_SUPPORT_EMAIL', PLC_NAME . ' Support <' . PLC_MAIL_SUPPORT_ADDRESS . '>');
 236 define('PLANETLAB_SUPPORT_EMAIL_ONLY', PLC_MAIL_SUPPORT_ADDRESS);
 237 ?>
 238 EOF
 239
 240         ## patch php.ini
 241         # memory limit
 242         sed -i -e 's,^memory_limit = 32M *;,memory_limit = 80M ; patch myplc -- ,' $php_ini
 243         # log_errors : is On by default
 244         # error_log
 245         if ! grep '^error_log *=' $php_ini > /dev/null ; then
 246           echo 'error_log = /var/log/php.log' >> $php_ini
 247           touch /var/log/php.log
 248           chmod 666 /var/log/php.log
 249         fi
 250
 251         plc_daemon httpd
 252         check
 253
 254         result "$MESSAGE"
 255         ;;
 256
 257     stop)
 258         MESSAGE=$"Stopping web server"
 259         dialog "$MESSAGE"
 260
 261         killproc plc_httpd
 262         check
 263
 264         result "$MESSAGE"
 265         ;;
 266 esac
 267
 268 exit $ERRORS