#!/bin/bash
# info: list mail ssl certificate
# options: [FORMAT]
#
# The function of obtaining mail ssl files.


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

# Argument definition
format=${1-shell}

# Includes
source $VESTA/func/main.sh

# JSON list function
json_list() {
    echo '{'
    echo -e "\t\"MAIL\": {"
    echo "        \"CRT\": \"$crt\","
    echo "        \"KEY\": \"$key\","
    echo "        \"CA\": \"$ca\","
    echo "        \"SUBJECT\": \"$subj\","
    echo "        \"ALIASES\": \"$alt_dns\","
    echo "        \"NOT_BEFORE\": \"$before\","
    echo "        \"NOT_AFTER\": \"$after\","
    echo "        \"SIGNATURE\": \"$signature\","
    echo "        \"PUB_KEY\": \"$pub_key\","
    echo "        \"ISSUER\": \"$issuer\""
    echo -e "\t}\n}"
}

# SHELL list function
shell_list() {
    if [ ! -z "$crt" ]; then
        echo -e "$crt"
    fi
    if [ ! -z "$key" ]; then
        echo -e "\n$key"
    fi
    if [ ! -z "$crt" ]; then
        echo
        echo
        echo "SUBJECT:        $subj"
        if [ ! -z "$alt_dns" ]; then
            echo "ALIASES:        ${alt_dns//,/ }"
        fi
        echo "VALID FROM:     $before"
        echo "VALID TIL:      $after"
        echo "SIGNATURE:      $signature"
        echo "PUB_KEY:        $pub_key"
        echo "ISSUER:         $issuer"
    fi
}

# PLAIN list function
plain_list() {
    if [ ! -z "$crt" ]; then
        echo -e "$crt"
    fi
    if [ ! -z "$key" ]; then
        echo -e "\n$key"
    fi
    if [ ! -z "$ca" ]; then
        echo -e "\n$ca"
    fi
    if [ ! -z "$crt" ]; then
        echo "$subj"
        echo "${alt_dns//,/ }"
        echo "$before"
        echo "$after"
        echo "$signature"
        echo "$pub_key"
        echo "$issuer"
    fi

}

# CSV list function
csv_list() {
    echo -n "CRT,KEY,CA,SUBJECT,ALIASES,NOT_BEFORE,NOT_AFTER,SIGNATURE,"
    echo "PUB_KEY,ISSUER"
    echo -n "\"$crt\",\"$key\",\"$ca\",\"$subj\",\"${alt_dns//,/ }\","
    echo "\"$before\",\"$after\",\"$signature\",\"$pub_key\",\"$issuer\""
}


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



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

# Parsing SSL certificate
if [ ! -e "$VESTA/ssl/mail.crt" ] || [ ! -e "$VESTA/ssl/mail.key" ]; then
    exit
fi

crt=$(cat $VESTA/ssl/mail.crt |sed ':a;N;$!ba;s/\n/\\n/g')
key=$(cat $VESTA/ssl/mail.key |sed ':a;N;$!ba;s/\n/\\n/g')


# Parsing SSL certificate details without CA
info=$(openssl x509 -text -in $VESTA/ssl/mail.crt)
subj=$(echo "$info" |grep Subject: |cut -f 2 -d =)
before=$(echo "$info" |grep Before: |sed -e "s/.*Before: //")
after=$(echo "$info" |grep "After :" |sed -e "s/.*After : //")
signature=$(echo "$info" |grep "Algorithm:" |head -n1 )
signature=$(echo "$signature"| sed -e "s/.*Algorithm: //")
pub_key=$(echo "$info" |grep Public-Key: |cut -f2 -d \( | tr -d \))
issuer=$(echo "$info" |grep Issuer: |sed -e "s/.*Issuer: //")
alt_dns=$(echo "$info" |grep DNS |sed -e 's/DNS:/\n/g' |tr -d ',')
alt_dns=$(echo "$alt_dns" |tr -d ' ' |sed -e "/^$/d")
alt_dns=$(echo "$alt_dns" |sed -e ':a;N;$!ba;s/\n/,/g')

# Listing data
case $format in
    json)   json_list ;;
    plain)  plain_list ;;
    csv)    csv_list ;;
    shell)  shell_list ;;
esac


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

exit