debian/postinst

   1 #!/bin/sh
   2
   3 set -e
   4
   5 [ "$DEBIAN_SCRIPT_DEBUG" ] && set -vx
   6
   7 case "$1" in
   8         configure)
   9         # continue below
  10         ;;
  11
  12         abort-upgrade|abort-remove|abort-deconfigure)
  13         exit 0
  14         ;;
  15
  16         *)
  17         echo "postinst called with unknown argument \`$1'" >&2
  18         exit 0
  19         ;;
  20 esac
  21
  22
  23 # Load debconf
  24 . /usr/share/debconf/confmodule
  25
  26 # Include CARNet functions
  27 . /usr/share/carnet-tools/functions.sh
  28
  29 PKG="php4-cn"
  30 A2MODEDIR="/etc/apache2/mods-enabled"
  31 EXTENSIONS="mysql"
  32 PHP4DIR="/etc/php4"
  33 PHP4CONFD="/etc/php4/conf.d"
  34
  35 need_restart=0
  36
  37
  38 # phpmemlimit ()
  39 #
  40 #   Calculate memory size for PHP memory_limit option.
  41 #
  42 phpmemlimit () {
  43
  44     local memtotal memlimit
  45     memtotal=`awk 'tolower($1) == "memtotal:" { printf("%i", $2/1024); }' /proc/meminfo`
  46
  47     if [ $memtotal -lt 512 ]; then memlimit=16; fi
  48     if [ $memtotal -ge 512 ]; then memlimit=32; fi
  49     if [ $memtotal -gt 1024 ]; then memlimit=64; fi
  50
  51     echo $memlimit
  52 }
  53
  54 # phpinivalidate ()
  55 #
  56 #   Validate php.ini values.
  57 #
  58 phpinivalidate () {
  59
  60     local ini_file
  61     ini_file="$1"
  62
  63     awk -F'[[:space:]]*=[[:space:]]*' \
  64         '/^[[:space:]]*[[:alpha:]_]+[[:space:]]*=[[:space:]]*[[:digit:]]+[MGK]B/ {print $1" = "$2}' \
  65         "$ini_file"
  66 }
  67
  68
  69 # Disable PHP5 module and enable Apache2 PHP4 module.
  70 #
  71 if [ -e /etc/apache2/apache2.conf ]; then
  72         if [ -e "$A2MODEDIR/php5.load" ]; then
  73                 cp_echo "CN: Disabling PHP5 module for Apache2 web server"
  74                 a2dismod php5 >/dev/null || true
  75                 need_restart=1
  76         fi
  77         if [ ! -e "$A2MODEDIR/php4.load" ] || [ ! -e "$A2MODEDIR/php4.conf" ]; then
  78                 cp_echo "CN: Enabling PHP4 module for Apache2 web server"
  79                 a2enmod php4 >/dev/null || true
  80                 need_restart=1
  81         fi
  82 fi
  83
  84
  85 # Check for PHP4 SAPI directories and configuration files.
  86 #
  87 for SAPI in apache2 cli; do
  88
  89         if [ ! -d "$PHP4DIR/$SAPI" ]; then
  90                 cp_echo "CN: Creating configuration directory $PHP4DIR/$SAPI/"
  91                 mkdir -p $PHP4DIR/$SAPI/
  92         fi
  93
  94         ini_file="$PHP4DIR/$SAPI/php.ini"
  95
  96         if [ ! -f "$ini_file" ]; then
  97
  98                 cp_echo "CN: Generating configuration file $ini_file"
  99
 100                 ini_file_tmp=`mktemp $ini_file.tmp.XXXXXX`
 101                 if [ "$SAPI" = "cli" ]; then
 102                     if [ -f "/usr/share/php4/php.ini-dist.cli" ]; then
 103                         cat /usr/share/php4/php.ini-dist.cli > $ini_file_tmp
 104                     fi
 105                 else
 106                     if [ -f "/usr/share/php4/php.ini-dist" ]; then
 107                         cat /usr/share/php4/php.ini-dist > $ini_file_tmp
 108                     fi
 109                 fi
 110                 cp_mv $ini_file_tmp $ini_file
 111                 need_restart=1
 112         fi
 113         chmod 644 $ini_file
 114 done
 115
 116
 117 # Check for /etc/php4/conf.d/ directory.
 118 #
 119 if [ ! -d "$PHP4CONFD" ]; then
 120         cp_echo "CN: Creating configuration directory $PHP4CONFD"
 121         mkdir -p $PHP4CONFD/
 122 fi
 123
 124
 125 # Check if PHP4 extensions are enabled.
 126 #
 127 for php4ext in $EXTENSIONS; do
 128
 129         php4ext_re="^[[:space:]]*extension[[:space:]]*=[[:space:]]*$php4ext\.so"
 130
 131         # Remove extension entry from /etc/php4/(apache2|cli).ini
 132         # configuration files.
 133         for SAPI in apache2 cli; do
 134
 135                 ini_file="$PHP4DIR/$SAPI/php.ini"
 136
 137                 if [ -f "$ini_file" ]; then
 138
 139                         cp_echo "CN: Removing $php4ext extension from file $ini_file"
 140
 141                         cp_check_and_sed "$php4ext_re" \
 142                                 "/$php4ext_re/d" \
 143                                 "$ini_file" && need_restart=1 || true
 144                 fi
 145         done
 146
 147         # Check extension configuration in /etc/php4/conf.d/ directory.
 148         if [ ! -f "$PHP4CONFD/$php4ext.ini" ]; then
 149
 150                 cp_echo "CN: Creating configuration file $PHP4CONFD/$php4ext.ini"
 151
 152                 php4ext_up=`echo $php4ext | tr [:lower:] [:upper:] | sed 's/Y/y/'`
 153                 INITMP=`mktemp $PHP4CONFD/$php4ext.ini.tmp.XXXXXX`
 154
 155                 cp_echo "CN: Adding $php4ext extension to file $PHP4CONFD/$php4ext.ini"
 156
 157                 printf "# configuration for php %s module\nextension=%s.so\n" "${php4ext_up}" "${php4ext}" >> "$INITMP"
 158                 cp_mv "$INITMP" "$PHP4CONFD/$php4ext.ini"
 159
 160                 need_restart=1
 161         else
 162
 163                 if ! grep -q "$php4ext_re" "$PHP4CONFD/$php4ext.ini"; then
 164
 165                         cp_echo "CN: Adding $php4ext extension to file $PHP4CONFD/$php4ext.ini"
 166
 167                         INITMP=`mktemp $PHP4CONFD/$php4ext.ini.tmp.XXXXXX`
 168                         cat "$PHP4CONFD/$php4ext.ini" > "$INITMP"
 169                         echo "extension=$php4ext.so" >> "$INITMP"
 170                         cp_mv "$INITMP" "$PHP4CONFD/$php4ext.ini"
 171
 172                         need_restart=1
 173                 fi
 174         fi
 175         chmod 644 $PHP4CONFD/$php4ext.ini
 176 done
 177
 178
 179 # Enable some PHP4 tweaks for Apache2 web server (/etc/php4/apache2/php.ini).
 180 #
 181 #   * upload_max_filesize = 256M
 182 #   * post_max_size, memory_limit = depends on system memory, we are using
 183 #     phpmemlimit() function.
 184 #
 185 for SAPI in apache2 cli; do
 186
 187         if [ ! -d "$PHP4DIR/$SAPI" ]; then
 188                 continue
 189         fi
 190
 191         ini_file="$PHP4DIR/$SAPI/php.ini"
 192         db_get php4-cn/${SAPI} || true
 193         if [ "$RET" = "true" ]; then
 194
 195             cp_echo "CN: Checking and enabling some specific parameters in file $ini_file"
 196
 197             phplimit="$(phpmemlimit)M"
 198
 199             if [ -f "$ini_file" ]; then
 200
 201                 cp_check_and_sed "^[[:space:]]*upload_max_filesize[[:space:]]*=" \
 202                         's/^[[:space:]]*upload_max_filesize[[:space:]]*=.*/upload_max_filesize = 256M/' \
 203                         "$ini_file" && need_restart=1 || true
 204
 205                 cp_check_and_sed "^[[:space:]]*post_max_size[[:space:]]*=" \
 206                         "s/^[[:space:]]*post_max_size[[:space:]]*=.*/post_max_size = ${phplimit}/" \
 207                         "$ini_file" && need_restart=1 || true
 208
 209                 cp_check_and_sed "^[[:space:]]*memory_limit[[:space:]]*=" \
 210                         "s/^[[:space:]]*memory_limit[[:space:]]*=.*/memory_limit = ${phplimit}/" \
 211                         "$ini_file" && need_restart=1 || true
 212             fi
 213
 214             ini_file_tmp=`mktemp $ini_file.tmp.XXXXXX`
 215             if [ -f "$ini_file" ]; then
 216                 cat $ini_file > $ini_file_tmp
 217             fi
 218
 219             if ! egrep -q "^[[:space:]]*upload_max_filesize[[:space:]]*=" $ini_file_tmp; then
 220                 echo "upload_max_filesize = 256M" >> "$ini_file_tmp"
 221                 need_restart=1
 222             fi
 223             if ! egrep -q "^[[:space:]]*post_max_size[[:space:]]*=" $ini_file_tmp; then
 224                 echo "post_max_size = ${phplimit}" >> "$ini_file_tmp"
 225                 need_restart=1
 226             fi
 227             if ! egrep -q "^[[:space:]]*memory_limit[[:space:]]*=" $ini_file_tmp; then
 228                 echo "memory_limit = ${phplimit}" >> "$ini_file_tmp"
 229                 need_restart=1
 230             fi
 231             cp_mv "$ini_file_tmp" "$ini_file"
 232             chmod 644 "$ini_file"
 233
 234             if [ -e "$ini_file_tmp" ]; then
 235                 rm -f "$ini_file_tmp"
 236             fi
 237         fi
 238
 239         # Validate php.ini values.
 240         if [ -f "$ini_file" ]; then
 241                 php4_inivalues="$(phpinivalidate "$ini_file")"
 242                 if [ -n "$php4_inivalues" ]; then
 243                         db_fset php4-cn/inivalues seen false
 244                         db_title php4-cn - konfiguracija za $(echo ${SAPI} | sed 's/a/A/;s/cli/CLI/')
 245                         db_subst php4-cn/inivalues php4_sapi $(echo ${SAPI} | sed 's/a/A/;s/cli/CLI/')
 246                         db_subst php4-cn/inivalues ini_file "$ini_file"
 247                         db_capb escape
 248                         db_subst php4-cn/inivalues php4_inivalues "$(echo -n "$php4_inivalues" | debconf-escape -e)"
 249                         db_input critical php4-cn/inivalues || true
 250                         db_go || true
 251                 fi
 252         fi
 253 done
 254
 255
 256 db_stop || true
 257
 258
 259 # Restart Apache2 web server if needed.
 260 #
 261 if [ $need_restart -eq 1 ]; then
 262
 263         # Check Apache2 web server configuration.
 264         if /usr/sbin/apache2ctl configtest 2>/dev/null; then
 265
 266                 # Restart Apache2 web server.
 267                 if [ -x "/etc/init.d/apache2" ]; then
 268                     if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
 269                         invoke-rc.d apache2 force-reload || true
 270                     else
 271                         /etc/init.d/apache2 force-reload || true
 272                     fi
 273                 fi
 274         else
 275
 276                 # Something is broken.
 277                 cp_echo "CN: Your Apache2 configuration is broken."
 278                 cp_echo "CN: Please, check the service after the installation finishes!"
 279         fi
 280 fi
 281
 282
 283 # Mail root
 284 #
 285 cp_mail "$PKG"
 286
 287 exit 0