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 php_fpm_conf=/etc/php-fpm.d/plc.conf
  25 php_fpm_dir=$(dirname $php_fpm_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\"@" $php_ini
  60
  61         # Set open_basedir so as to avoid leaks
  62         open_basedir="$DocumentRoot:/etc/planetlab/php:/usr/share/plc_api/php:/var/log/myslice:/var/tmp/bootmedium:/var/log/bm:/tmp"
  63         sed -i -e "s@[;]*open_basedir =.*@open_basedir = \"$open_basedir\"@" $php_ini
  64
  65         # for php-5.3 under fedora12, otherwise issues tons of warning messages
  66         # Set timezone in php.ini if not already there
  67         if grep '^;date.timezone' $php_ini >& /dev/null; then
  68             dialog 'Setting PHP timezone to GMT'
  69             sed -i -e 's,^;date.timezone.*,date.timezone = GMT,' $php_ini
  70         fi
  71
  72         if grep '^short_open_tag = Off' $php_ini >& /dev/null; then
  73             sed -i -e 's,^short_open_tag = Off,short_open_tag = On,' $php_ini
  74         fi
  75
  76         ## patch php.ini
  77         # memory limit
  78         sed -i -e 's,^memory_limit = 32M *;,memory_limit = 80M ; patch myplc -- ,' $php_ini
  79         # log_errors : is On by default
  80         # error_log
  81         if ! grep '^error_log *=' $php_ini > /dev/null ; then
  82           echo 'error_log = /var/log/php.log' >> $php_ini
  83           touch /var/log/php.log
  84           chmod 666 /var/log/php.log
  85         fi
  86
  87         # configure php-fpm as well if present (starting with f27)
  88         if [ -d $php_fpm_dir ] ; then
  89             cat > $php_fpm_conf << EOF
  90 [www]
  91 php_value[include_path] = $include_path
  92 php_value[open_basedir] = $open_basedir
  93 php_value[date.timezone] = GMT
  94 php_value[short_open_tag] = On
  95 php_value[memory_limit] = 80M
  96 EOF
  97             # this is needed because otherwise, the first time
  98             # we do this configuration, the service is already up
  99             # and the config is usable only the second time
 100             systemctl restart php-fpm
 101         fi
 102
 103         # Disable default Listen directive
 104         sed -i -e '/^Listen/d' $httpd_conf
 105
 106         plc_api_path_noslash=$(echo $PLC_API_PATH | sed -e s,/,,g)
 107         # Set the port numbers
 108         for server in WWW API BOOT ; do
 109             enabled=PLC_${server}_ENABLED
 110             if [ "${!enabled}" != "1" ] ; then
 111                 continue
 112             fi
 113             hostname=PLC_${server}_HOST
 114             http_port=PLC_${server}_PORT
 115             https_port=PLC_${server}_SSL_PORT
 116
 117             # API should always be accessed via SSL
 118             if [ "$server" = "API" ] ; then
 119                 https_port=${!http_port}
 120                 http_port=
 121             fi
 122
 123             # Check if we are already listening on these ports
 124             skip_http=0
 125             skip_https=0
 126             for previous_server in WWW API BOOT ; do
 127                 if [ "$server" = "$previous_server" ] ; then
 128                     break
 129                 fi
 130                 previous_enabled=PLC_${previous_server}_ENABLED
 131                 if [ "${!previous_enabled}" != "1" ] ; then
 132                     continue
 133                 fi
 134                 previous_http_port=PLC_${previous_server}_PORT
 135                 previous_https_port=PLC_${previous_server}_SSL_PORT
 136
 137                 if [ -z "${http_port}" ]; then
 138                     skip_http=1;
 139                 elif [ -z "${!http_port}" ]; then
 140                     skip_http=1;
 141                 elif [ "${!http_port}" = "${!previous_http_port}" ] ; then
 142                     skip_http=1
 143                 fi
 144                 if [ -z "${https_port}" ]; then
 145                     skip_https=1
 146                 elif [ -z "${!https_port}" ]; then
 147                     skip_https=1
 148                 elif [ "${!https_port}" = "${!previous_https_port}" ] ; then
 149                     skip_https=1
 150                 fi
 151             done
 152
 153             # HTTP configuration
 154             if [ $skip_http -eq 0 ] ; then
 155                 cat <<EOF
 156 Listen ${!http_port}
 157 <VirtualHost *:${!http_port}>
 158     # Make sure that the admin web pages are always accessed via SSL
 159     Redirect /db https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/db
 160     Redirect /planetlab https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/planetlab
 161 # as a matter of fact most xmlrpc clients won't follow the redirection
 162 # so this is mostly rethorical, but just in case...
 163    Redirect /$plc_api_path_noslash https://$PLC_WWW_HOST:$PLC_WWW_SSL_PORT/$plc_api_path_noslash
 164 </VirtualHost>
 165
 166 EOF
 167             fi
 168
 169             # HTTPS configuration
 170             if [ $skip_https -eq 0 ] ; then
 171                 # XXX Cannot support NameVirtualHost over SSL. If
 172                 # the API, boot, and web servers are all running
 173                 # on the same machine, the web server certificate
 174                 # takes precedence.
 175                 sed -i \
 176                     -e "s/^Listen .*/Listen ${!https_port}/" \
 177                     -e "s/<VirtualHost _default_:.*>/<VirtualHost _default_:${!https_port}>/" \
 178                     $ssl_conf
 179                 # this is used to locate the right certificates
 180                 server_lower=$(echo $server | tr 'A-Z' 'a-z')
 181
 182                 # which one is used is currently configured in myplc.spec,
 183                 # with mod_python preferred
 184                 if rpm -q mod_python >& /dev/null ; then
 185                     configure_for_mod_python=true
 186                 elif rpm -q mod_wsgi >& /dev/null ; then
 187                     configure_for_mod_wsgi=true
 188                 else
 189                     echo "Requires mod_python or mod_wsgi.... exiting"
 190                     exit 1
 191                 fi
 192
 193                 # It would be tempting to use <IfModule> here
 194                 # but early tests showed this could be tricky/fragile
 195                 # So let's hard-wire it for one module
 196                 # A lot of trial-and -error was involved in getting this that way...
 197
 198                 if [ -n "$configure_for_mod_python" ] ; then
 199 #################### for mod_python
 200                     cat <<EOF
 201 # mod_python location
 202 <Location /PLCAPI/>
 203     SetHandler mod_python
 204     PythonPath "sys.path + ['/usr/share/plc_api']"
 205     PythonHandler apache.ModPython
 206 </Location>
 207 EOF
 208
 209                 elif [ -n "$configure_for_mod_wsgi" ] ; then
 210 #################### for mod_wsgi
 211                     cat <<EOF
 212 # create wsgi socket where we have the permission
 213 WSGISocketPrefix run/wsgi
 214
 215 <VirtualHost *:${!https_port}>
 216
 217    # SSL
 218    SSLEngine On
 219    SSLCertificateFile /etc/planetlab/${server_lower}_ssl.crt
 220    SSLCertificateKeyFile /etc/planetlab/${server_lower}_ssl.key
 221    SSLCertificateChainFile /etc/planetlab/${server_lower}_ca_ssl.crt
 222
 223    WSGIScriptAlias /$plc_api_path_noslash /usr/share/plc_api/apache/plc.wsgi
 224 # xxx would be cool to be able to tweak this through config
 225    WSGIDaemonProcess plcapi-wsgi-ssl user=apache group=apache processes=1 threads=25
 226    WSGIProcessGroup plcapi-wsgi-ssl
 227
 228    <Directory "/usr/share/plc_api/apache">
 229       Options +ExecCGI
 230       $(apache_allow)
 231    </Directory>
 232
 233 </VirtualHost>
 234 EOF
 235                 fi
 236             fi
 237         done >$plc_conf
 238
 239         # Set custom Apache directives
 240         (
 241             # could be restricted to boot boxes but harmless..
 242             cat <<EOF
 243 AddType application/octet-stream .iso
 244 AddType application/octet-stream .usb
 245 EOF
 246             # make sure /PLCAPI can't get accessed if API not enabled here
 247             if [ "$PLC_API_ENABLED" != "1" ] ; then
 248                 cat <<EOF
 249 # mod_wsgi location
 250 <Location $PLC_API_PATH>
 251     $(apache_forbid)
 252 </Location>
 253 EOF
 254             fi
 255
 256             # redirect www requests if not on the right server
 257             if [ "$PLC_WWW_ENABLED" != "1" ] ; then
 258                 cat <<EOF
 259 Redirect /index.html http://$PLC_WWW_HOST:$PLC_WWW_PORT/
 260 EOF
 261             fi
 262         ) >>$plc_conf
 263
 264         # Make alpina-logs directory writable for bootmanager log upload
 265         chown apache:apache $DocumentRoot/alpina-logs/nodes
 266
 267         # Make the Drupal files upload directory owned by Apache
 268         mkdir -p $DocumentRoot/files
 269         chown apache:apache $DocumentRoot/files
 270
 271         # Symlink any (real) files or directories in
 272         # /data/var/www/html/* to /var/www/html/. We could descend
 273         # into subdirectories, but the code to do so properly would be
 274         # madness.
 275         for file in /data/$DocumentRoot/* ; do
 276             if [ -e "$file" -a ! -h "$file" ] ; then
 277                 base=$(basename "$file")
 278                 if [ ! -e "$DocumentRoot/$base" ] ; then
 279                     ln -nsf "$file" "$DocumentRoot/$base"
 280                 fi
 281             fi
 282         done
 283
 284         # Cleanup broken symlinks
 285         for file in $DocumentRoot/* ; do
 286             if [ -h "$file" -a ! -e "$file" ] ; then
 287                 rm -f "$file"
 288             fi
 289         done
 290
 291         # Old style PHP constants
 292         mkdir -p /etc/planetlab/php
 293         cat >/etc/planetlab/php/site_constants.php <<"EOF"
 294 <?php
 295 include('plc_config.php');
 296
 297 define('PL_API_SERVER', PLC_API_HOST);
 298 define('PL_API_PATH', PLC_API_PATH);
 299 define('PL_API_PORT', PLC_API_PORT);
 300 define('PL_API_CAPABILITY_AUTH_METHOD', 'capability');
 301 define('PL_API_CAPABILITY_PASS', PLC_API_MAINTENANCE_PASSWORD);
 302 define('PL_API_CAPABILITY_USERNAME', PLC_API_MAINTENANCE_USER);
 303 define('WWW_BASE', PLC_WWW_HOST);
 304 define('BOOT_BASE', PLC_BOOT_HOST);
 305 define('DEBUG', PLC_WWW_DEBUG);
 306 define('API_CALL_DEBUG', PLC_API_DEBUG);
 307 define('SENDMAIL', PLC_MAIL_ENABLED);
 308 define('PLANETLAB_SUPPORT_EMAIL', PLC_NAME . ' Support <' . PLC_MAIL_SUPPORT_ADDRESS . '>');
 309 define('PLANETLAB_SUPPORT_EMAIL_ONLY', PLC_MAIL_SUPPORT_ADDRESS);
 310 ?>
 311 EOF
 312
 313         ## make room for logs
 314         touch /var/log/plcapi.log
 315         chmod 666 /var/log/plcapi.log
 316
 317         plc_daemon httpd
 318         check
 319
 320         result "$MESSAGE"
 321         ;;
 322
 323     stop)
 324         MESSAGE=$"Stopping web server"
 325         dialog "$MESSAGE"
 326
 327         killproc plc_httpd
 328         check
 329
 330         result "$MESSAGE"
 331         ;;
 332 esac
 333
 334 exit $ERRORS