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="php5-cn"
  30 A2MODEDIR="/etc/apache2/mods-enabled"
  31 EXTENSIONS="mysql"
  32 PHP5DIR="/etc/php5"
  33 PHP5CONFD="/etc/php5/conf.d"
  34 PHP4DIR="/etc/php4"
  35
  36 need_restart=0
  37
  38
  39 # phpmemlimit ()
  40 #
  41 #   Calculate memory size for PHP memory_limit option.
  42 #
  43 phpmemlimit () {
  44
  45     local memtotal memlimit
  46     memtotal=`awk 'tolower($1) == "memtotal:" { printf("%i", $2/1024); }' /proc/meminfo`
  47
  48     if [ $memtotal -lt 512 ]; then memlimit=16; fi
  49     if [ $memtotal -ge 512 ]; then memlimit=32; fi
  50     if [ $memtotal -gt 1024 ]; then memlimit=64; fi
  51
  52     echo $memlimit
  53 }
  54
  55 # phpinivalidate ()
  56 #
  57 #   Validate php.ini values.
  58 #
  59 phpinivalidate () {
  60
  61     local ini_file
  62     ini_file="$1"
  63
  64     awk -F'[[:space:]]*=[[:space:]]*' \
  65         '/^[[:space:]]*[[:alpha:]_]+[[:space:]]*=[[:space:]]*[[:digit:]]+[MGK]B/ {print $1" = "$2}' \
  66         "$ini_file"
  67 }
  68
  69
  70 # Disable PHP4 module and enable Apache2 PHP5 module.
  71 #
  72 if [ -e /etc/apache2/apache2.conf ]; then
  73     if [ -e "$A2MODEDIR/php4.load" ]; then
  74         cp_echo "CN: Disabling PHP4 module for Apache2 web server"
  75         a2dismod php4 >/dev/null || true
  76         need_restart=1
  77     fi
  78     if [ ! -e "$A2MODEDIR/php5.load" ] || [ ! -e "$A2MODEDIR/php5.conf" ]; then
  79         cp_echo "CN: Enabling PHP5 module for Apache2 web server"
  80         a2enmod php5 >/dev/null || true
  81
  82         if [ -e "$A2MODEDIR/php5.conf" ]; then
  83             if egrep -qi "^[[:space:]]*php_admin_value engine Off" "$A2MODEDIR/php5.conf"; then
  84                 db_fset php5-cn/userdir seen false
  85                 db_title php5-cn - konfiguracija
  86                 db_subst php5-cn/userdir php5_conf "$A2MODEDIR/php5.conf"
  87                 db_input critical php5-cn/userdir || true
  88                 db_go || true
  89             fi
  90         fi
  91
  92         need_restart=1
  93     fi
  94 fi
  95
  96
  97 # Check for PHP5 SAPI directories and configuration files.
  98 #
  99 for SAPI in apache2 cli; do
 100
 101     if [ ! -d "$PHP5DIR/$SAPI" ]; then
 102         cp_echo "CN: Creating configuration directory $PHP5DIR/$SAPI/"
 103         mkdir -p $PHP5DIR/$SAPI/
 104     fi
 105
 106     ini_file="$PHP5DIR/$SAPI/php.ini"
 107
 108     if [ ! -f "$ini_file" ]; then
 109
 110         cp_echo "CN: Generating configuration file $ini_file"
 111
 112         ini_file_tmp=`mktemp $ini_file.tmp.XXXXXX`
 113         if [ "$SAPI" = "cli" ]; then
 114             if [ -f "/usr/share/php5/php.ini-production.cli" ]; then
 115                 cat /usr/share/php5/php.ini-production.cli > $ini_file_tmp
 116             fi
 117         else
 118             if [ -f "/usr/share/php5/php.ini-production" ]; then
 119                 cat /usr/share/php5/php.ini-production > $ini_file_tmp
 120             fi
 121         fi
 122         cp_mv $ini_file_tmp $ini_file
 123         need_restart=1
 124     fi
 125     chmod 644 $ini_file
 126 done
 127
 128
 129 # Check for /etc/php5/conf.d/ directory.
 130 #
 131 if [ ! -d "$PHP5CONFD" ]; then
 132     cp_echo "CN: Creating configuration directory $PHP5CONFD"
 133     mkdir -p $PHP5CONFD/
 134 fi
 135
 136
 137 # Check if PHP5 extensions are enabled.
 138 #
 139 for php5ext in $EXTENSIONS; do
 140
 141     php5ext_re="^[[:space:]]*extension[[:space:]]*=[[:space:]]*$php5ext\.so"
 142
 143     # Remove extension entry from /etc/php5/(apache2|cli).ini
 144     # configuration files.
 145     for SAPI in apache2 cli; do
 146
 147         ini_file="$PHP5DIR/$SAPI/php.ini"
 148
 149         if [ -f "$ini_file" ]; then
 150
 151             if egrep -q "$php5ext_re" "$ini_file"; then
 152                 cp_echo "CN: Removing $php5ext extension from file $ini_file"
 153             fi
 154
 155             cp_check_and_sed "$php5ext_re" \
 156                 "/$php5ext_re/d" \
 157                 "$ini_file" && need_restart=1 || true
 158         fi
 159     done
 160
 161     # Check extension configuration in /etc/php5/conf.d/ directory.
 162     if [ ! -f "$PHP5CONFD/$php5ext.ini" ]; then
 163
 164         cp_echo "CN: Creating configuration file $PHP5CONFD/$php5ext.ini"
 165
 166         php5ext_up=`echo $php5ext | tr [:lower:] [:upper:] | sed 's/Y/y/'`
 167         INITMP=`mktemp $PHP5CONFD/$php5ext.ini.tmp.XXXXXX`
 168
 169         cp_echo "CN: Adding $php5ext extension to file $PHP5CONFD/$php5ext.ini"
 170
 171         printf "# configuration for php %s module\nextension=%s.so\n" "${php5ext_up}" "${php5ext}" >> "$INITMP"
 172         cp_mv "$INITMP" "$PHP5CONFD/$php5ext.ini"
 173
 174         need_restart=1
 175     else
 176
 177         if ! grep -q "$php5ext_re" "$PHP5CONFD/$php5ext.ini"; then
 178
 179             cp_echo "CN: Adding $php5ext extension to file $PHP5CONFD/$php5ext.ini"
 180
 181             INITMP=`mktemp $PHP5CONFD/$php5ext.ini.tmp.XXXXXX`
 182             cat "$PHP5CONFD/$php5ext.ini" > "$INITMP"
 183             echo "extension=$php5ext.so" >> "$INITMP"
 184             cp_mv "$INITMP" "$PHP5CONFD/$php5ext.ini"
 185
 186             need_restart=1
 187         fi
 188     fi
 189     chmod 644 $PHP5CONFD/$php5ext.ini
 190 done
 191
 192
 193 # Enable some PHP5 tweaks for Apache2 web server (/etc/php5/apache2/php.ini).
 194 #
 195 #   * upload_max_filesize = 256M
 196 #   * post_max_size, memory_limit = depends on system memory, we are using
 197 #     phpmemlimit() function.
 198 #   * error_reporting = E_ERROR
 199 #
 200 for SAPI in apache2 cli; do
 201
 202     if [ ! -d "$PHP5DIR/$SAPI" ]; then
 203         continue
 204     fi
 205
 206     ini_file="$PHP5DIR/$SAPI/php.ini"
 207     db_get php5-cn/${SAPI} || true
 208     if [ "$RET" = "true" ]; then
 209
 210         cp_echo "CN: Checking and enabling some specific parameters in file $ini_file"
 211
 212         phplimit="$(phpmemlimit)M"
 213
 214         if [ -f "$ini_file" ]; then
 215
 216             cp_check_and_sed "^[[:space:]]*upload_max_filesize[[:space:]]*=" \
 217                 's/^[[:space:]]*upload_max_filesize[[:space:]]*=.*/upload_max_filesize = 256M/' \
 218                 "$ini_file" && need_restart=1 || true
 219
 220             cp_check_and_sed "^[[:space:]]*post_max_size[[:space:]]*=" \
 221                 "s/^[[:space:]]*post_max_size[[:space:]]*=.*/post_max_size = ${phplimit}/" \
 222                 "$ini_file" && need_restart=1 || true
 223
 224             cp_check_and_sed "^[[:space:]]*memory_limit[[:space:]]*=" \
 225                 "s/^[[:space:]]*memory_limit[[:space:]]*=.*/memory_limit = ${phplimit}/" \
 226                 "$ini_file" && need_restart=1 || true
 227
 228             cp_check_and_sed "^[[:space:]]*error_reporting[[:space:]]*=" \
 229                 "s/^[[:space:]]*error_reporting[[:space:]]*=.*/error_reporting = E_ERROR/" \
 230                 "$ini_file" && need_restart=1 || true
 231         fi
 232
 233         ini_file_tmp=`mktemp $ini_file.tmp.XXXXXX`
 234         if [ -f "$ini_file" ]; then
 235             cat $ini_file > $ini_file_tmp
 236         fi
 237
 238         if ! egrep -q "^[[:space:]]*upload_max_filesize[[:space:]]*=" $ini_file_tmp; then
 239             echo "upload_max_filesize = 256M" >> "$ini_file_tmp"
 240             need_restart=1
 241         fi
 242         if ! egrep -q "^[[:space:]]*post_max_size[[:space:]]*=" $ini_file_tmp; then
 243             echo "post_max_size = ${phplimit}" >> "$ini_file_tmp"
 244             need_restart=1
 245         fi
 246         if ! egrep -q "^[[:space:]]*memory_limit[[:space:]]*=" $ini_file_tmp; then
 247             echo "memory_limit = ${phplimit}" >> "$ini_file_tmp"
 248             need_restart=1
 249         fi
 250         if ! egrep -q "^[[:space:]]*error_reporting[[:space:]]*=" $ini_file_tmp; then
 251             echo "error_reporting = E_ERROR" >> "$ini_file_tmp"
 252             need_restart=1
 253         fi
 254         cp_mv "$ini_file_tmp" "$ini_file"
 255         chmod 644 "$ini_file"
 256
 257         if [ -e "$ini_file_tmp" ]; then
 258             rm -f "$ini_file_tmp"
 259         fi
 260     fi
 261
 262     # Validate php.ini values.
 263     if [ -f "$ini_file" ]; then
 264         php5_inivalues="$(phpinivalidate "$ini_file")"
 265         if [ -n "$php5_inivalues" ]; then
 266             db_fset php5-cn/inivalues seen false
 267             db_title php5-cn - konfiguracija za $(echo ${SAPI} | sed 's/a/A/;s/cli/CLI/')
 268             db_subst php5-cn/inivalues php5_sapi $(echo ${SAPI} | sed 's/a/A/;s/cli/CLI/')
 269             db_subst php5-cn/inivalues ini_file "$ini_file"
 270             db_capb escape
 271             db_subst php5-cn/inivalues php5_inivalues "$(echo -n "$php5_inivalues" | debconf-escape -e)"
 272             db_input critical php5-cn/inivalues || true
 273             db_go || true
 274         fi
 275     fi
 276 done
 277
 278
 279 # Compare active PHP5 extensions with PHP4 ones, if PHP4 configuration still exists.
 280 #
 281 if [ -d "${PHP4DIR}" ] && [ -f "${PHP4DIR}/apache2/php.ini" ]; then
 282
 283     phpext_re='^[[:space:]]*extension[[:space:]]*=[[:space:]]*["]{0,1}(.*)\.so["]{0,1}'
 284
 285     # Get all active PHP4 extensions.
 286     php4_ext="$(find ${PHP4DIR} -type f -name *.ini |
 287          egrep "\/(conf\.d|apache2|cli)\/" |
 288          xargs sed -rn 's/'$phpext_re'/\1/Ip')" || true
 289
 290     # Get all active PHP5 extensions.
 291     php5_ext=""
 292     if [ -d "${PHP5DIR}" ]; then
 293         php5_ext="$(find ${PHP5DIR} -type f -name *.ini |
 294              egrep "\/(conf\.d|apache2|cli)\/" |
 295              xargs sed -rn 's/'$phpext_re'/\1/Ip')" || true
 296     fi
 297
 298     # Compare PHP5 <-> PHP4 extensions.
 299     php5_ext_mis=""
 300     for ext in $php4_ext; do
 301         if [ "$(echo $php5_ext | egrep $ext)" = "" ]; then
 302             php5_ext_mis="\n${ext}${php5_ext_mis}"
 303         fi
 304     done
 305
 306     # Some PHP5 extensions are not active.
 307     if [ -n "$php5_ext_mis" ]; then
 308         db_fset php5-cn/extensions seen false
 309         db_title php5-cn - konfiguracija
 310         db_capb escape
 311         db_subst php5-cn/extensions php5_extensions "${php5_ext_mis#*\n}"
 312         db_input critical php5-cn/extensions || true
 313         db_go || true
 314     fi
 315 fi
 316
 317
 318 db_stop || true
 319
 320
 321 # Restart Apache2 web server if needed.
 322 #
 323 if [ $need_restart -eq 1 ]; then
 324
 325     # Check Apache2 web server configuration.
 326     if apache2ctl configtest 2>/dev/null; then
 327         invoke-rc.d apache2 force-reload || true
 328     else
 329         # Something is broken.
 330         cp_echo "CN: Your Apache2 configuration is broken."
 331         cp_echo "CN: Please, check the service after the installation finishes!"
 332     fi
 333 fi
 334
 335
 336 # Mail root
 337 #
 338 cp_mail "$PKG"
 339
 340 #DEBHELPER#
 341
 342 exit 0