diff options
Diffstat (limited to 'debian/mysql-server-5.5.postinst')
| -rw-r--r-- | debian/mysql-server-5.5.postinst | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/debian/mysql-server-5.5.postinst b/debian/mysql-server-5.5.postinst new file mode 100644 index 0000000..5e0df21 --- /dev/null +++ b/debian/mysql-server-5.5.postinst @@ -0,0 +1,282 @@ +#!/bin/bash + +set -e + +. /usr/share/debconf/confmodule + +if [ -n "$DEBIAN_SCRIPT_DEBUG" ]; then set -v -x; DEBIAN_SCRIPT_TRACE=1; fi +${DEBIAN_SCRIPT_TRACE:+ echo "#42#DEBUG# RUNNING $0 $*" 1>&2 } + +export PATH=$PATH:/sbin:/usr/sbin:/bin:/usr/bin + +# This command can be used as pipe to syslog. With "-s" it also logs to stderr. +ERR_LOGGER="logger -p daemon.err -t mysqld_safe -i" + +invoke() { + if [ -x /usr/sbin/invoke-rc.d ]; then + invoke-rc.d mysql $1 + else + /etc/init.d/mysql $1 + fi +} + +MYSQL_BOOTSTRAP="/usr/sbin/mysqld --bootstrap --user=mysql --skip-grant-tables" + +test_mysql_access() { + mysql --no-defaults -u root -h localhost </dev/null >/dev/null 2>&1 +} + +# call with $1 = "online" to connect to the server, otherwise it bootstraps +set_mysql_rootpw() { + # forget we ever saw the password. don't use reset to keep the seen status + db_set mysql-server/root_password "" + db_set mysql-server/root_password_again "" + + tfile=`mktemp` + if [ ! -f "$tfile" ]; then + return 1 + fi + + # this avoids us having to call "test" or "[" on $rootpw + cat << EOF > $tfile +USE mysql; +UPDATE user SET password=PASSWORD("$rootpw") WHERE user='root'; +FLUSH PRIVILEGES; +EOF + if grep -q 'PASSWORD("")' $tfile; then + retval=0 + elif [ "$1" = "online" ]; then + mysql --no-defaults -u root -h localhost <$tfile >/dev/null + retval=$? + else + $MYSQL_BOOTSTRAP <$tfile + retval=$? + fi + rm -f $tfile + return $retval +} + +# This is necessary because mysql_install_db removes the pid file in /run +# and because changed configuration options should take effect immediately. +# In case the server wasn't running at all it should be ok if the stop +# script fails. I can't tell at this point because of the cleaned /run. +set +e; invoke stop; set -e + +case "$1" in + configure) + mysql_datadir=/usr/share/mysql + mysql_statedir=/var/lib/mysql + mysql_rundir=/run/mysqld + mysql_logdir=/var/log + mysql_cfgdir=/etc/mysql + mysql_newlogdir=/var/log/mysql + mysql_upgradedir=/var/lib/mysql-upgrade + + # first things first, if the following symlink exists, it is a preserved + # copy the old data dir from a mysql upgrade that would have otherwise + # been replaced by an empty mysql dir. this should restore it. + for dir in DATADIR LOGDIR; do + if [ "$dir" = "DATADIR" ]; then targetdir=$mysql_statedir; else targetdir=$mysql_newlogdir; fi + savelink="$mysql_upgradedir/$dir.link" + if [ -L "$savelink" ]; then + # If the targetdir was a symlink before we upgraded it is supposed + # to be either still be present or not existing anymore now. + if [ -L "$targetdir" ]; then + rm "$savelink" + elif [ ! -d "$targetdir" ]; then + mv "$savelink" "$targetdir" + else + # this should never even happen, but just in case... + mysql_tmp=`mktemp -d -t mysql-symlink-restore-XXXXXX` + echo "this is very strange! see $mysql_tmp/README..." >&2 + mv "$targetdir" "$mysql_tmp" + cat << EOF > "$mysql_tmp/README" + +if you're reading this, it's most likely because you had replaced /var/lib/mysql +with a symlink, then upgraded to a new version of mysql, and then dpkg +removed your symlink (see #182747 and others). the mysql packages noticed +that this happened, and as a workaround have restored it. however, because +/var/lib/mysql seems to have been re-created in the meantime, and because +we don't want to rm -rf something we don't know as much about, we're going +to leave this unexpected directory here. if your database looks normal, +and this is not a symlink to your database, you should be able to blow +this all away. + +EOF + fi + fi + rmdir $mysql_upgradedir 2>/dev/null || true + done + + # Ensure the existence and right permissions for the database and + # log files. + if [ ! -d "$mysql_statedir" -a ! -L "$mysql_statedir" ]; then mkdir "$mysql_statedir"; fi + if [ ! -d "$mysql_statedir/mysql" -a ! -L "$mysql_statedir/mysql" ]; then mkdir "$mysql_statedir/mysql"; fi + if [ ! -d "$mysql_newlogdir" -a ! -L "$mysql_newlogdir" ]; then mkdir "$mysql_newlogdir"; fi + # When creating an ext3 jounal on an already mounted filesystem like e.g. + # /var/lib/mysql, you get a .journal file that is not modifyable by chown. + # The mysql_datadir must not be writable by the mysql user under any + # circumstances as it contains scripts that are executed by root. + set +e + chown -R 0:0 $mysql_datadir + chown -R mysql $mysql_statedir + chmod 700 $mysql_statedir $mysql_statedir/mysql + if [ ! -d "$mysql_rundir" ]; then mkdir "$mysql_rundir"; fi + chown -R mysql $mysql_rundir + chown -R mysql:adm $mysql_newlogdir; chmod 2750 $mysql_newlogdir; + for i in log err; do + touch $mysql_logdir/mysql.$i + chown mysql:adm $mysql_logdir/mysql.$i + chmod 0640 $mysql_logdir/mysql.$i + done + set -e + + # This is important to avoid dataloss when there is a removed + # mysql-server version from Woody lying around which used the same + # data directory and then somewhen gets purged by the admin. + db_set mysql-server/postrm_remove_database false || true + + # To avoid downgrades. + touch $mysql_statedir/debian-5.5.flag + + # initiate databases. Output is not allowed by debconf :-( + # Debian: beware of the bashisms... + # Debian: can safely run on upgrades with existing databases + set +e + bash /usr/bin/mysql_install_db --rpm 2>&1 | $ERR_LOGGER + if [ "$?" != "0" ]; then + echo "ATTENTION: An error has occured. More info is in the syslog!" + fi + set -e + + ## On every reconfiguration the maintenance user is recreated. + # + # - It is easier to regenerate the password every time but as people + # use fancy rsync scripts and file alteration monitors, the existing + # password is used and existing files not touched. + # - The mysqld statement is like that in mysql_install_db because the + # server is not already running. This has some implications: + # - The amount of newlines and semicolons in the query is important! + # - GRANT is not possible with --skip-grant-tables and "INSERT + # (user,host..) VALUES" is not --ansi compliant + # - The echo is just for readability. ash's buildin has no "-e" so use /bin/echo. + # - The Super_priv, Show_db_priv, Create_tmp_table_priv and Lock_tables_priv + # may not be present as old Woody 3.23 databases did not have it and the + # admin might not already have run mysql_upgrade which adds them. + # As the binlog cron scripts to need at least the Super_priv, I do first + # the old query which always succeeds and then the new which may or may not. + + # recreate the credentials file if not present or without mysql_upgrade stanza + dc=$mysql_cfgdir/debian.cnf; + if [ -e "$dc" -a -n "`fgrep mysql_upgrade $dc 2>/dev/null`" ]; then + pass="`sed -n 's/^[ ]*password *= *// p' $dc | head -n 1`" + else + pass=`perl -e 'print map{("a".."z","A".."Z",0..9)[int(rand(62))]}(1..16)'`; + if [ ! -d "$mysql_cfgdir" ]; then install -o 0 -g 0 -m 0755 -d $mysql_cfgdir; fi + cat /dev/null > $dc + echo "# Automatically generated for Debian scripts. DO NOT TOUCH!" >>$dc + echo "[client]" >>$dc + echo "host = localhost" >>$dc + echo "user = debian-sys-maint" >>$dc + echo "password = $pass" >>$dc + echo "socket = $mysql_rundir/mysqld.sock" >>$dc + echo "[mysql_upgrade]" >>$dc + echo "host = localhost" >>$dc + echo "user = debian-sys-maint" >>$dc + echo "password = $pass" >>$dc + echo "socket = $mysql_rundir/mysqld.sock" >>$dc + echo "basedir = /usr" >>$dc + fi + # If this dir chmod go+w then the admin did it. But this file should not. + chown 0:0 $dc + chmod 0600 $dc + + # update privilege tables + password_column_fix_query=`echo -e \ + "USE mysql\n" \ + "ALTER TABLE user CHANGE Password Password char(41) character set latin1 collate latin1_bin DEFAULT '' NOT NULL"`; + replace_query=`echo -e \ + "USE mysql\n" \ + "REPLACE INTO user SET " \ + " host='localhost', user='debian-sys-maint', password=password('$pass'), " \ + " Select_priv='Y', Insert_priv='Y', Update_priv='Y', Delete_priv='Y', " \ + " Create_priv='Y', Drop_priv='Y', Reload_priv='Y', Shutdown_priv='Y', " \ + " Process_priv='Y', File_priv='Y', Grant_priv='Y', References_priv='Y', " \ + " Index_priv='Y', Alter_priv='Y', Super_priv='Y', Show_db_priv='Y', "\ + " Create_tmp_table_priv='Y', Lock_tables_priv='Y', Execute_priv='Y', "\ + " Repl_slave_priv='Y', Repl_client_priv='Y', Create_view_priv='Y', "\ + " Show_view_priv='Y', Create_routine_priv='Y', Alter_routine_priv='Y', "\ + " Create_user_priv='Y', Event_priv='Y', Trigger_priv='Y' "`; + fix_privs=`echo -e \ + "USE mysql;\n" \ + "ALTER TABLE user ADD column Create_view_priv enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N'; " \ + "ALTER TABLE user ADD column Show_view_priv enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N'; " \ + "ALTER TABLE user ADD column Create_routine_priv enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N'; " \ + "ALTER TABLE user ADD column Alter_routine_priv enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N'; " \ + "ALTER TABLE user ADD column Create_user_priv enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N'; " \ + "ALTER TABLE user ADD column Event_priv enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N'; " \ + "ALTER TABLE user ADD column Trigger_priv enum('N','Y') CHARACTER SET utf8 NOT NULL DEFAULT 'N'; " ` + # Engines supported by etch should be installed per default. The query sequence is supposed + # to be aborted if the CREATE TABLE fails due to an already existent table in which case the + # admin might already have chosen to remove one or more plugins. Newlines are necessary. + install_plugins=`echo -e \ + "USE mysql;\n" \ + "CREATE TABLE plugin (name char(64) COLLATE utf8_bin NOT NULL DEFAULT '', " \ + " dl char(128) COLLATE utf8_bin NOT NULL DEFAULT '', " \ + " PRIMARY KEY (name)) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_bin COMMENT='MySQL plugins';\n" \ + "INSERT INTO plugin VALUES ('innodb', 'ha_innodb.so');\n" \ + "INSERT INTO plugin VALUES ('federated', 'ha_federated.so');\n" \ + "INSERT INTO plugin VALUES ('blackhole', 'ha_blackhole.so');\n" \ + "INSERT INTO plugin VALUES ('archive', 'ha_archive.so');" ` + + # Upgrade password column format before the root password gets set. + echo "$password_column_fix_query" | $MYSQL_BOOTSTRAP 2>&1 | $ERR_LOGGER + + db_get mysql-server/root_password && rootpw="$RET" + if ! set_mysql_rootpw; then + password_error="yes" + fi + + echo "$fix_privs" | $MYSQL_BOOTSTRAP 2>&1 | $ERR_LOGGER + echo "$replace_query" | $MYSQL_BOOTSTRAP 2>&1 | $ERR_LOGGER + set +e + echo "$install_plugins" | $MYSQL_BOOTSTRAP 2>&1 | $ERR_LOGGER + set -e + ;; + + abort-upgrade|abort-remove|abort-configure) + ;; + + *) + echo "postinst called with unknown argument '$1'" 1>&2 + exit 1 + ;; +esac + +# here we check to see if we can connect as root without a password +# this should catch upgrades from previous versions where the root +# password wasn't set. if there is a password, or if the connection +# fails for any other reason, nothing happens. +if [ "$1" = "configure" ]; then + if test_mysql_access; then + db_input medium mysql-server/root_password || true + db_go + db_get mysql-server/root_password && rootpw="$RET" + + if ! set_mysql_rootpw "online"; then + password_error="yes" + fi + fi + + if [ "$password_error" = "yes" ]; then + db_input high mysql-server/error_setting_password || true + db_go + fi + +fi + +db_stop # in case invoke failes + +#DEBHELPER# + +exit 0 |