#!/bin/sh
# config script for phpbb3
# Copyright 2004 Jeroen van Wolffelaar <jeroen@wolffelaar.nl>
# Copyright 2010 J.M. Roth <jmroth@iip.lu>
#
# possible calls: called from postinst, same calls + reconfigure

set -e

if [ "$PB3DEBUG" = "maint" ]; then
  echo "[maint] $0 $@" >&2
fi
if [ "$PB3DEBUG" = "sh" ]; then
  set -x
fi

SUPPORTED_WEBSERVERS="apache2 lighttpd"

. /usr/share/debconf/confmodule
db_version 2.0

# create the list of what webservers we should show in debconf
# (if the dialog is displayed at all)
AVAILABLE_WEBSERVERS=""
for w in $SUPPORTED_WEBSERVERS; do
    if [ -x /usr/sbin/$w ]; then
        AVAILABLE_WEBSERVERS="${AVAILABLE_WEBSERVERS:+$AVAILABLE_WEBSERVERS, }$w"
    fi
done

# remember previously configured webservers for postinst
# (where we determine which webservers to actually restart)
db_register phpbb3/httpd phpbb3/httpd-old
db_get phpbb3/httpd
db_set phpbb3/httpd-old "$RET"

db_subst phpbb3/httpd choices $AVAILABLE_WEBSERVERS
db_input high phpbb3/httpd || true
db_go || true

# some files of the package need to be present to configure the package
if [ -f /usr/share/phpbb3/maint-libs/webapps-config ] && \
   [ -f /usr/share/phpbb3/maint-libs/dbapps-lib ]; then

. /usr/share/phpbb3/maint-libs/webapps-config
. /usr/share/phpbb3/maint-libs/dbapps-lib

dc_dbg

if [ -f /usr/share/dbconfig-common/dpkg/config ]; then
    dbc_dbtypes="mysql, pgsql, sqlite"
    . /usr/share/dbconfig-common/dpkg/config
    
    if ! dbc_go phpbb3 $@; then
        echo 'dbc_go (config) failed'
    fi
fi

dc_dbg

# ask to provide board's admin password
#  - if dbconfig-common is used at all, and
#  - this is a fresh install (or reconfigure), or
#  - the password has never been changed from 'admin'
if dc_true phpbb3/dbconfig-install ; then
    if [ -n "$2" ] && ! dc_true phpbb3/dbconfig-remove ; then
        check_admin_passwd=$(run_sql "SELECT user_password FROM phpbb_users WHERE username='admin';")
    fi

    # first ask whether we should ask the questions at all (admin-pass-ask):
    # otherwise, when e.g. reconfiguring the _webserver_ one would
    # also have to set a new password (NO, in contrary to standard
    # dbconfig-common behavior, an empty password here does not mean
    # "use the old password" but "generate random password"
    case "$1" in
        configure )
            case "$2" in
                # package install
                "" )
                    db_set phpbb3/admin-pass-ask true
                    ;;
                # package upgrade/reinstall
                * )
                    if [ "$check_admin_passwd" = "$(_md5 admin)" ] || dc_true phpbb3/dbconfig-reinstall ; then
                        db_set phpbb3/admin-pass-ask true
                    fi
                    ;;
            esac
            ;;
        # dpkg-reconfigure
        reconfigure )
            # database reinstall
            if dc_true phpbb3/dbconfig-reinstall ; then
                db_set phpbb3/admin-pass-ask true
            else
                db_input high phpbb3/admin-pass-ask || true
                db_go || true
            fi
            ;;
        * )
            db_set phpbb3/admin-pass-ask false
            ;;
    esac
    if dc_true phpbb3/admin-pass-ask ; then
        OK=false
        until [ "$OK" = "true" ] ; do
            dc_forget phpbb3/admin-pass
            db_input high phpbb3/admin-pass || true
            db_go || true
            P1=$(dc_get phpbb3/admin-pass)
            if [ -n "$P1" ] ; then
                if [ "${#P1}" -lt 6 ] ; then
                    db_input high phpbb3/admin-pass-requirements && db_go || true
                    dc_forget phpbb3/admin-pass
                    dc_forget phpbb3/admin-pass-confirm
                    continue
                fi
                db_input high phpbb3/admin-pass-confirm || true
                db_go || true
                P2=$(dc_get phpbb3/admin-pass-confirm)
                if [ "$P1" != "$P2" ] ; then
                    db_input high phpbb3/admin-pass-mismatch || true
                    db_go || true
                    dc_forget phpbb3/admin-pass
                    dc_forget phpbb3/admin-pass-confirm
                    continue
                fi
            else
                P2=
                P1=$(</dev/urandom tr -dc A-NP-Za-km-z0-9 | head -c 10)
                db_subst phpbb3/admin-pass-generated genpass $P1
                db_input high phpbb3/admin-pass-generated || true
                db_go || true
                db_set phpbb3/admin-pass $P1
                dc_forget phpbb3/admin-pass-generated
            fi
            OK=true
        done
    fi
    dc_forget phpbb3/admin-pass-ask
fi
fi