superclip.sh

#!/bin/bash
# Puts a SuperGenPass in XA_PRIMARY hashed fom url in XA_PRIMARY or XA_CLIPBOARD
# and a password. xclip gets the url and Zenity gets user input. openssl hashes.

readonly length=15
readonly digest=md5

validHash() {
        # Password should be hashed at least 10 times until it begins with 
        # lowercase and contains both uppercase and number characters.
        [[ $i -ge 10 ]] &&
        [[ "$hash" =~ (^[a-z].*) ]] && 
        [[ "$hash" =~ ([A-Z]) ]] &&
        [[ "$hash" =~ ([0-9]) ]]
}

validDomain() {
        declare -l url
        if [[ $domain == "" ]]; then
                url="$(xclip -o)" #First run: get XA_PRIMARY
        else
                url="$(xclip -selection clipboard -o)" #Second run: Try with XA_CLIPBOARD
        fi
        url="${url#*//}" # strip protocol
        domain="${url%%/*}" # strip path, query, etc
        regex="^.*\\..*$" # Contains a dot
        if [[ "${domain}" =~ $regex ]]; then 
                regex="^.*\\..*\\..*$" # Contains two dots
                if [[ "${domain}" =~ $regex ]]; then
                        domain="${domain#*.}" # Strip (first) subdomain
                fi
        else
                return 1 # No dots, probably not an url
        fi
}

if validDomain || validDomain; then
        master=$(zenity --entry --hide-text --ok-label="Copy" --text="Password for ${domain}")||\
                (echo "Input aborted" >&2; exit 1)
        trap "unset master hash domain" EXIT 15 2 5 6
else 
        echo "Invalid url" >&2; exit 1
fi

declare hash=$master:$domain

let i=0
until validHash
do
        let "i++"
        hash=$(echo -n "$hash" | openssl ${digest} -binary | openssl base64)
        hash=${hash//+/9}; hash=${hash//\//8}; hash=${hash//=/A} # tr +/= 98A
done
echo ${hash:0:length}|xclip -i -l 1