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 $memlimit
  52 }
  53
  54
  55 # Disable PHP5 module and enable Apache2 PHP4 module.
  56 #
  57 if [ -e /etc/apache2/apache2.conf ]; then
  58         if [ -e "$A2MODEDIR/php5.load" ]; then
  59                 cp_echo "CN: Disabling PHP5 module for Apache2 web server"
  60                 a2dismod php5 >/dev/null || true
  61                 need_restart=1
  62         fi
  63         if [ ! -e "$A2MODEDIR/php4.load" ] || [ ! -e "$A2MODEDIR/php4.conf" ]; then
  64                 cp_echo "CN: Enabling PHP4 module for Apache2 web server"
  65                 a2enmod php4 >/dev/null || true
  66                 need_restart=1
  67         fi
  68 fi
  69
  70
  71 # Check for PHP4 SAPI directories and configuration files.
  72 #
  73 for SAPI in apache2 cli; do
  74
  75         if [ ! -d "$PHP4DIR/$SAPI" ]; then
  76                 cp_echo "CN: Creating configuration directory $PHP4DIR/$SAPI/"
  77                 mkdir -p $PHP4DIR/$SAPI/
  78         fi
  79
  80         ini_file="$PHP4DIR/$SAPI/php.ini"
  81
  82         if [ ! -f "$ini_file" ]; then
  83
  84                 cp_echo "CN: Generating configuration file $ini_file"
  85
  86                 ini_file_tmp=`mktemp $ini_file.tmp.XXXXXX`
  87                 if [ "$SAPI" = "cli" ]; then
  88                     if [ -f "/usr/share/php4/php.ini-dist.cli" ]; then
  89                         cat /usr/share/php4/php.ini-dist.cli > $ini_file_tmp
  90                     fi
  91                 else
  92                     if [ -f "/usr/share/php4/php.ini-dist" ]; then
  93                         cat /usr/share/php4/php.ini-dist > $ini_file_tmp
  94                     fi
  95                 fi
  96                 cp_mv $ini_file_tmp $ini_file
  97                 need_restart=1
  98         fi
  99         chmod 644 $ini_file
 100 done
 101
 102
 103 # Check for /etc/php4/conf.d/ directory.
 104 #
 105 if [ ! -d "$PHP4CONFD" ]; then
 106         cp_echo "CN: Creating configuration directory $PHP4CONFD"
 107         mkdir -p $PHP4CONFD/
 108 fi
 109
 110
 111 # Check if PHP4 extensions are enabled.
 112 #
 113 for php4ext in $EXTENSIONS; do
 114
 115         php4ext_re="^[[:space:]]*extension[[:space:]]*=[[:space:]]*$php4ext\.so"
 116
 117         # Remove extension entry from /etc/php4/(apache2|cli).ini
 118         # configuration files.
 119         for SAPI in apache2 cli; do
 120
 121                 ini_file="$PHP4DIR/$SAPI/php.ini"
 122
 123                 if [ -f "$ini_file" ]; then
 124
 125                         cp_echo "CN: Removing $php4ext extension from file $ini_file"
 126
 127                         cp_check_and_sed "$php4ext_re" \
 128                                 "/$php4ext_re/d" \
 129                                 "$ini_file" && need_restart=1 || true
 130                 fi
 131         done
 132
 133         # Check extension configuration in /etc/php4/conf.d/ directory.
 134         if [ ! -f "$PHP4CONFD/$php4ext.ini" ]; then
 135
 136                 cp_echo "CN: Creating configuration file $PHP4CONFD/$php4ext.ini"
 137
 138                 php4ext_up=`echo $php4ext | tr [:lower:] [:upper:] | sed 's/Y/y/'`
 139                 INITMP=`mktemp $PHP4CONFD/$php4ext.ini.tmp.XXXXXX`
 140
 141                 cp_echo "CN: Adding $php4ext extension to file $PHP4CONFD/$php4ext.ini"
 142
 143                 printf "# configuration for php %s module\nextension=%s.so\n" "${php4ext_up}" "${php4ext}" >> "$INITMP"
 144                 cp_mv "$INITMP" "$PHP4CONFD/$php4ext.ini"
 145
 146                 need_restart=1
 147         else
 148
 149                 if ! grep -q "$php4ext_re" "$PHP4CONFD/$php4ext.ini"; then
 150
 151                         cp_echo "CN: Adding $php4ext extension to file $PHP4CONFD/$php4ext.ini"
 152
 153                         INITMP=`mktemp $PHP4CONFD/$php4ext.ini.tmp.XXXXXX`
 154                         cat "$PHP4CONFD/$php4ext.ini" > "$INITMP"
 155                         echo "extension=$php4ext.so" >> "$INITMP"
 156                         cp_mv "$INITMP" "$PHP4CONFD/$php4ext.ini"
 157
 158                         need_restart=1
 159                 fi
 160         fi
 161         chmod 644 $PHP4CONFD/$php4ext.ini
 162 done
 163
 164
 165 # Enable some PHP4 tweaks for Apache2 web server (/etc/php4/apache2/php.ini).
 166 #
 167 #   * upload_max_filesize = 256M
 168 #   * post_max_size, memory_limit = depends on system memory, we are using
 169 #     phpmemlimit() function.
 170 #
 171 for SAPI in apache2 cli; do
 172
 173         if [ ! -d "$PHP4DIR/$SAPI" ]; then
 174                 continue
 175         fi
 176
 177         db_get php4-cn/${SAPI} || true
 178         if [ "$RET" = "true" ]; then
 179
 180             ini_file="$PHP4DIR/$SAPI/php.ini"
 181
 182             cp_echo "CN: Checking and enabling some specific parameters in file $ini_file"
 183
 184             phplimit="$(phpmemlimit)M"
 185
 186             if [ -f "$ini_file" ]; then
 187
 188                 cp_check_and_sed "^[[:space:]]*upload_max_filesize[[:space:]]*=" \
 189                         's/^[[:space:]]*upload_max_filesize[[:space:]]*=.*/upload_max_filesize = 256M/' \
 190                         "$ini_file" && need_restart=1 || true
 191
 192                 cp_check_and_sed "^[[:space:]]*post_max_size[[:space:]]*=" \
 193                         "s/^[[:space:]]*post_max_size[[:space:]]*=.*/post_max_size = ${phplimit}/" \
 194                         "$ini_file" && need_restart=1 || true
 195
 196                 cp_check_and_sed "^[[:space:]]*memory_limit[[:space:]]*=" \
 197                         "s/^[[:space:]]*memory_limit[[:space:]]*=.*/memory_limit = ${phplimit}/" \
 198                         "$ini_file" && need_restart=1 || true
 199             fi
 200
 201             ini_file_tmp=`mktemp $ini_file.tmp.XXXXXX`
 202             if [ -f "$ini_file" ]; then
 203                 cat $ini_file > $ini_file_tmp
 204             fi
 205
 206             if ! egrep -q "^[[:space:]]*upload_max_filesize[[:space:]]*=" $ini_file_tmp; then
 207                 echo "upload_max_filesize = 256M" >> "$ini_file_tmp"
 208                 need_restart=1
 209             fi
 210             if ! egrep -q "^[[:space:]]*post_max_size[[:space:]]*=" $ini_file_tmp; then
 211                 echo "post_max_size = ${phplimit}" >> "$ini_file_tmp"
 212                 need_restart=1
 213             fi
 214             if ! egrep -q "^[[:space:]]*memory_limit[[:space:]]*=" $ini_file_tmp; then
 215                 echo "memory_limit = ${phplimit}" >> "$ini_file_tmp"
 216                 need_restart=1
 217             fi
 218             cp_mv "$ini_file_tmp" "$ini_file"
 219
 220             if [ -e "$ini_file_tmp" ]; then
 221                 rm -f "$ini_file_tmp"
 222             fi
 223         fi
 224 done
 225
 226
 227 db_stop || true
 228
 229
 230 # Restart Apache2 web server if needed.
 231 #
 232 if [ $need_restart -eq 1 ]; then
 233
 234         # Check Apache2 web server configuration.
 235         if /usr/sbin/apache2ctl configtest 2>/dev/null; then
 236
 237                 # Restart Apache2 web server.
 238                 if [ -x "/etc/init.d/apache2" ]; then
 239                     if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
 240                         invoke-rc.d apache2 force-reload || true
 241                     else
 242                         /etc/init.d/apache2 force-reload || true
 243                     fi
 244                 fi
 245         else
 246
 247                 # Something is broken.
 248                 cp_echo "CN: Your Apache2 configuration is broken."
 249                 cp_echo "CN: Please, check the service after the installation finishes!"
 250         fi
 251 fi
 252
 253
 254 # Mail root
 255 #
 256 cp_mail "$PKG"
 257
 258 exit 0