vesta/bin/v-check-user-password
2018-04-08 22:06:20 +03:00

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#!/bin/bash
# info: check user password
# options: USER PASSWORD [IP]
#
# The function verifies user password from file
#----------------------------------------------------------#
# Variable&Function #
#----------------------------------------------------------#
# Argument definition
user=$1
password=$2; HIDE=2
ip=${3-127.0.0.1}
# Includes
source $VESTA/func/main.sh
source $VESTA/conf/vesta.conf
time_n_date=$(date +'%T %F')
time=$(echo "$time_n_date" |cut -f 1 -d \ )
date=$(echo "$time_n_date" |cut -f 2 -d \ )
#----------------------------------------------------------#
# Verifications #
#----------------------------------------------------------#
check_args '2' "$#" 'USER PASSWORD'
is_format_valid 'user'
# Checking user
if [ ! -d "$VESTA/data/users/$user" ] && [ "$user" != 'root' ]; then
echo "Error: password missmatch"
echo "$date $time $user $ip failed to login" >> $VESTA/log/auth.log
exit 9
fi
# Checking user password
is_password_valid
# Checking empty password
if [[ -z "$password" ]]; then
echo "Error: password missmatch"
echo "$date $time $user $ip failed to login" >> $VESTA/log/auth.log
exit 9
fi
#----------------------------------------------------------#
# Action #
#----------------------------------------------------------#
# Parsing user's salt
shadow=$(grep "^$user:" /etc/shadow | cut -f 2 -d :)
if echo "$shadow" | grep -qE '^\$[0-9a-z]+\$[^\$]+\$'
then
salt=$(echo "$shadow" |cut -f 3 -d \$)
method=$(echo "$shadow" |cut -f 2 -d \$)
if [ "$method" -eq '1' ]; then
method='md5'
elif [ "$method" -eq '6' ]; then
method='sha-512'
else
echo "Error: password missmatch"
echo "$date $time $user $ip failed to login" >> $VESTA/log/auth.log
exit 9
fi
else
salt=${shadow:0:2}
method='des'
fi
if [ -z "$salt" ]; then
echo "Error: password missmatch"
echo "$date $time $user $ip failed to login" >> $VESTA/log/auth.log
exit 9
fi
# Generating hash
set -o noglob
hash=$($BIN/v-generate-password-hash $method $salt <<< "$password")
if [[ -z "$hash" ]]; then
echo "Error: password missmatch"
echo "$date $time $user $ip failed to login" >> $VESTA/log/auth.log
exit 9
fi
# Checking hash
result=$(grep "^$user:$hash:" /etc/shadow 2>/dev/null)
if [[ -z "$result" ]]; then
echo "Error: password missmatch"
echo "$date $time $user $ip failed to login" >> $VESTA/log/auth.log
exit 9
fi
#----------------------------------------------------------#
# Vesta #
#----------------------------------------------------------#
# Logging
echo "$date $time $user $ip successfully logged in" >> $VESTA/log/auth.log
exit