#!/bin/bash
# info: add ssh key
# options: USER key
#
# Function check if $user/.ssh/authorized_keys exists and create it
# After that it append the new key(s)

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


# Argument definition
user=$1
key=$2

# Includes
source $HESTIA/func/main.sh
source $HESTIA/conf/hestia.conf

# Additional argument formatting

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

check_args '2' "$#" 'USER SSH_PUBLIC_KEY'
is_format_valid 'user'
is_object_valid 'user' 'USER' "$user"
is_object_unsuspended 'user' 'USER' "$user"

# Perform verification if read-only mode is enabled
check_hestia_demo_mode

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

# Reading user values
source $USER_DATA/user.conf

AUTHKEY_FILE="$HOMEDIR/$user/.ssh/authorized_keys"
[ -z "$(readlink -f "$AUTHKEY_FILE" | egrep "^$HOMEDIR/$user/.ssh/")" ] && check_result $E_FORBIDEN "Invalid authorized keys path"

#check if file exits
if [ ! -f "$AUTHKEY_FILE" ]; then
    v-add-fs-file "$user" "${AUTHKEY_FILE}"
fi

[ -z "$key" ] && check_result $E_NOTEXIST "Empty ssh public key"

if ! echo "$key" | ssh-keygen -l -f - > /dev/null 2>&1; then
    check_result $E_PARSING "Validating user private key"
fi

# make sure authorized_keys is ending with EOL
[ -f "${AUTHKEY_FILE}" ] && sed -i '$a\' "${AUTHKEY_FILE}"

#append key to file
echo "$key" >> "$AUTHKEY_FILE"

#----------------------------------------------------------#
#                       Hestia                             #
#----------------------------------------------------------#

# Logging
log_history "Added ssh-key $user"
log_event "$OK" "$ARGUMENTS"

exit
