#!/bin/bash
# info: delete system sftp jail
# options: NONE
#
# The script disables sftp jailed environment


#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#

# Importing system environment  as we run this script
# mostly by cron which do not read it by itself
source /etc/profile

# Includes
source $VESTA/func/main.sh
source $VESTA/conf/vesta.conf


#----------------------------------------------------------#
#                    Verifications                         #
#----------------------------------------------------------#

#if [ -z "$SFTPJAIL_KEY" ]; then
#    exit
#fi


#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

# Checking users
for user in $(grep "$HOMEDIR" /etc/passwd |cut -f 1 -d:); do
    $BIN/v-delete-user-sftp-jail $user
done

# Checking sshd directives
config='/etc/ssh/sshd_config'
sftp_n=$(grep -n "Subsystem.*sftp" $config |grep -v internal |grep ":#")
sftp_i=$(grep -n "Subsystem.*sftp" $config |grep internal |grep -v ":#")

# Backing up config
cp $config $config.bak-$(date +%s)

# Enabling normal sftp
if [ ! -z "$sftp_n" ]; then
    fline=$(echo $sftp_n |cut -f 1 -d :)
    sed -i "${fline}s/#Subsystem/Subsystem sftp/" $config
    restart='yes'
fi

# Disabling jailed sftp
if [ ! -z "$sftp_i" ]; then
    fline=$(echo $sftp_i |cut -f 1 -d :)
    lline=$((fline + 5))
    sed -i "${fline},${lline}d" $config
    restart='yes'
fi

# Validating opensshd config
if [ "$restart" = 'yes' ]; then
    subj="OpenSSH restart failed"
    email=$(grep CONTACT $VESTA/data/users/admin/user.conf |cut -f 2 -d \')
    /usr/sbin/sshd -t >/dev/null 2>&1
    if [ "$?" -ne 0 ]; then
        mail_text="OpenSSH can not be restarted. Please check config:
            \n\n$(/usr/sbin/sshd -t)"
        echo -e "$mail_text" |$SENDMAIL -s "$subj" $email
    else
        service ssh restart >/dev/null 2>&1
        service sshd restart >/dev/null 2>&1
    fi
fi

# Deleting v-add-sys-sftp-jail from startup
sed -i "/v-add-sys-sftp-jail/d" /etc/rc.local 2>/dev/null


#----------------------------------------------------------#
#                       Vesta                              #
#----------------------------------------------------------#

# Logging
log_event "$OK" "$ARGUMENTS"

exit
