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