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