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' $httpd_conf
  76
  77         plc_api_path_noslash=$(echo $PLC_API_PATH | sed -e s,/,,g)
  78         # Set the port numbers
  79         for server in WWW API BOOT ; do
  80             enabled=PLC_${server}_ENABLED
  81             if [ "${!enabled}" != "1" ] ; then
  82                 continue
  83             fi
  84             hostname=PLC_${server}_HOST
  85             http_port=PLC_${server}_PORT
  86             https_port=PLC_${server}_SSL_PORT
  87
  88             # API should always be accessed via SSL
  89             if [ "$server" = "API" ] ; then
  90                 https_port=${!http_port}
  91                 http_port=
  92             fi
  93
  94             echo "# DBG server=$server hostname=${!hostname} http_port=${!http_port} https_port=${!https_port}"
  95
  96             # Check if we are already listening on these ports
  97             skip_http=0
  98             skip_https=0
  99             for previous_server in WWW API BOOT ; do
 100                 if [ "$server" = "$previous_server" ] ; then
 101                     break
 102                 fi
 103                 previous_enabled=PLC_${previous_server}_ENABLED
 104                 if [ "${!previous_enabled}" != "1" ] ; then
 105                     continue
 106                 fi
 107                 previous_http_port=PLC_${previous_server}_PORT
 108                 previous_https_port=PLC_${previous_server}_SSL_PORT
 109
 110                 if [ "${!http_port}" = "${!previous_http_port}" ] ; then
 111                     skip_http=1
 112                 fi
 113                 if [ "${!https_port}" = "${!previous_https_port}" ] ; then
 114                     skip_https=1
 115                 fi
 116             done
 117
 118             # HTTP configuration
 119             if [ $skip_http -eq 0 -a -n "${!http_port}" ] ; then
 120                 cat <<EOF
 121 Listen ${!http_port}
 122 <VirtualHost *:${!http_port}>
 123     # Make sure that the admin web pages are always accessed via SSL
 124     Redirect /db https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/db
 125     Redirect /planetlab https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/planetlab
 126 # as a matter of fact most xmlrpc clients won't follow the redirection
 127 # so this is mostly rethorical, but just in case...
 128    Redirect /$plc_api_path_noslash https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/$plc_api_path_noslash
 129 </VirtualHost>
 130
 131 EOF
 132             fi
 133
 134             # HTTPS configuration
 135             if [ $skip_https -eq 0 -a -n "${!https_port}" ] ; then
 136                 # XXX Cannot support NameVirtualHost over SSL. If
 137                 # the API, boot, and web servers are all running
 138                 # on the same machine, the web server certificate
 139                 # takes precedence.
 140                 sed -i \
 141                     -e "s/^Listen .*/Listen ${!https_port}/" \
 142                     -e "s/<VirtualHost _default_:.*>/<VirtualHost _default_:${!https_port}>/" \
 143                     $ssl_conf
 144             # this is used to locate the right certificates
 145             server_lower=$(echo $server | tr 'A-Z' 'a-z')
 146             cat <<EOF
 147
 148 # create wsgi socket where we have the permission
 149 <IfModule !mod_python.c>
 150 WSGISocketPrefix run/wsgi
 151 </IfModule>
 152
 153 <VirtualHost *:${!https_port}>
 154
 155    # SSL
 156    SSLEngine On
 157    SSLCertificateFile /etc/planetlab/${server_lower}_ssl.crt
 158    SSLCertificateKeyFile /etc/planetlab/${server_lower}_ssl.key
 159    SSLCertificateChainFile /etc/planetlab/${server_lower}_ca_ssl.crt
 160
 161 # we prefer mod_python if available, as first attempts at using mod_wsgi
 162 # turned out less reliable
 163 <IfModule mod_python.c>
 164    <Location /$plc_api_path_noslash>
 165       SetHandler mod_python
 166       PythonPath "sys.path + ['/usr/share/plc_api']"
 167       PythonHandler apache.ModPython
 168    </Location>
 169 </IfModule>
 170
 171 <IfModule !mod_python.c>
 172    WSGIScriptAlias /$plc_api_path_noslash /usr/share/plc_api/apache/plc.wsgi
 173 # xxx would be cool to be able to tweak this through config
 174    WSGIDaemonProcess plcapi-wsgi-ssl user=apache group=apache processes=1 threads=25
 175    WSGIProcessGroup plcapi-wsgi-ssl
 176
 177    <Directory "/usr/share/plc_api/apache">
 178       Options +ExecCGI
 179       $(apache_allow)
 180    </Directory>
 181 </IfModule>
 182
 183 </VirtualHost>
 184
 185 EOF
 186
 187             fi
 188         done >$plc_conf
 189
 190         # Set custom Apache directives
 191         (
 192             # could be restricted to boot boxes but harmless..
 193             cat <<EOF
 194 AddType application/octet-stream .iso
 195 AddType application/octet-stream .usb
 196 EOF
 197             # make sure /PLCAPI can't get accessed if API not enabled here
 198             if [ "$PLC_API_ENABLED" != "1" ] ; then
 199                 cat <<EOF
 200 # mod_wsgi location
 201 <Location $PLC_API_PATH>
 202     $(apache_forbid)
 203 </Location>
 204 EOF
 205             fi
 206
 207             # redirect www requests if not on the right server
 208             if [ "$PLC_WWW_ENABLED" != "1" ] ; then
 209                 cat <<EOF
 210 Redirect /index.html http://$PLC_WWW_HOST:$PLC_WWW_PORT/
 211 EOF
 212             fi
 213         ) >>$plc_conf
 214
 215         # Make alpina-logs directory writable for bootmanager log upload
 216         chown apache:apache $DocumentRoot/alpina-logs/nodes
 217
 218         # Make the Drupal files upload directory owned by Apache
 219         mkdir -p $DocumentRoot/files
 220         chown apache:apache $DocumentRoot/files
 221
 222         # Symlink any (real) files or directories in
 223         # /data/var/www/html/* to /var/www/html/. We could descend
 224         # into subdirectories, but the code to do so properly would be
 225         # madness.
 226         for file in /data/$DocumentRoot/* ; do
 227             if [ -e "$file" -a ! -h "$file" ] ; then
 228                 base=$(basename "$file")
 229                 if [ ! -e "$DocumentRoot/$base" ] ; then
 230                     ln -nsf "$file" "$DocumentRoot/$base"
 231                 fi
 232             fi
 233         done
 234
 235         # Cleanup broken symlinks
 236         for file in $DocumentRoot/* ; do
 237             if [ -h "$file" -a ! -e "$file" ] ; then
 238                 rm -f "$file"
 239             fi
 240         done
 241
 242         # Old style PHP constants
 243         mkdir -p /etc/planetlab/php
 244         cat >/etc/planetlab/php/site_constants.php <<"EOF"
 245 <?php
 246 include('plc_config.php');
 247
 248 define('PL_API_SERVER', PLC_API_HOST);
 249 define('PL_API_PATH', PLC_API_PATH);
 250 define('PL_API_PORT', PLC_API_PORT);
 251 define('PL_API_CAPABILITY_AUTH_METHOD', 'capability');
 252 define('PL_API_CAPABILITY_PASS', PLC_API_MAINTENANCE_PASSWORD);
 253 define('PL_API_CAPABILITY_USERNAME', PLC_API_MAINTENANCE_USER);
 254 define('WWW_BASE', PLC_WWW_HOST);
 255 define('BOOT_BASE', PLC_BOOT_HOST);
 256 define('DEBUG', PLC_WWW_DEBUG);
 257 define('API_CALL_DEBUG', PLC_API_DEBUG);
 258 define('SENDMAIL', PLC_MAIL_ENABLED);
 259 define('PLANETLAB_SUPPORT_EMAIL', PLC_NAME . ' Support <' . PLC_MAIL_SUPPORT_ADDRESS . '>');
 260 define('PLANETLAB_SUPPORT_EMAIL_ONLY', PLC_MAIL_SUPPORT_ADDRESS);
 261 ?>
 262 EOF
 263
 264         ## patch php.ini
 265         # memory limit
 266         sed -i -e 's,^memory_limit = 32M *;,memory_limit = 80M ; patch myplc -- ,' $php_ini
 267         # log_errors : is On by default
 268         # error_log
 269         if ! grep '^error_log *=' $php_ini > /dev/null ; then
 270           echo 'error_log = /var/log/php.log' >> $php_ini
 271           touch /var/log/php.log
 272           chmod 666 /var/log/php.log
 273         fi
 274
 275         plc_daemon httpd
 276         check
 277
 278         result "$MESSAGE"
 279         ;;
 280
 281     stop)
 282         MESSAGE=$"Stopping web server"
 283         dialog "$MESSAGE"
 284
 285         killproc plc_httpd
 286         check
 287
 288         result "$MESSAGE"
 289         ;;
 290 esac
 291
 292 exit $ERRORS