Top Level Namespace

Defined Under Namespace

Modules: PwdHash

Instance Method Summary collapse

Instance Method Details

#apply_constraints(hash, size, nonalphanumeric) ⇒ Object 



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# File 'lib/pwdhash/pwdhash.rb', line 28

def apply_constraints(hash, size, nonalphanumeric)
  startingSize = size - 4 # Leave room for some extra characters
  result = hash[0, startingSize]
  extras = (hash[startingSize, hash.length] || "").split('')
  
  # Add the extra characters
  result += (contains(result, /[A-Z]/) ? next_extra_character(extras) : next_between('A', 26, extras))
  result += (contains(result, /[a-z]/) ? next_extra_character(extras) : next_between('a', 26, extras))
  result += (contains(result, /[0-9]/) ? next_extra_character(extras) : next_between('0', 10, extras))
  result += (contains(result, /\W/) && nonalphanumeric ? next_extra_character(extras) : '+')
  while (contains(result, /\W/) && !nonalphanumeric) do
    result = result.sub(/\W/, next_between('A', 26, extras))
  end
  
  
  # Rotate the result to make it harder to guess the inserted locations
  result = result.split('')
  rotate(result, next_extra(extras))
  return result.join('')
end

#between(min, interval, offset) ⇒ Object 



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# File 'lib/pwdhash/pwdhash.rb', line 15

def between(min, interval, offset)
  (min.ord + offset.ord % interval).chr
end

#contains(result, regex) ⇒ Object 



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# File 'lib/pwdhash/pwdhash.rb', line 24

def contains(result, regex)
  result.match(regex)
end

#extract_domain(uri) ⇒ Object 



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# File 'lib/pwdhash/extract_domain.rb', line 1

def extract_domain(uri)
    domains = %w(
        ab.ca
        ac.ac
        ac.at
        ac.be
        ac.cn
        ac.il
        ac.in
        ac.jp
        ac.kr
        ac.nz
        ac.th
        ac.uk
        ac.za
        adm.br
        adv.br
        agro.pl
        ah.cn
        aid.pl
        alt.za
        am.br
        arq.br
        art.br
        arts.ro
        asn.au
        asso.fr
        asso.mc
        atm.pl
        auto.pl
        bbs.tr
        bc.ca
        bio.br
        biz.pl
        bj.cn
        br.com
        cn.com
        cng.br
        cnt.br
        co.ac
        co.at
        co.il
        co.in
        co.jp
        co.kr
        co.nz
        co.th
        co.uk
        co.za
        com.au
        com.br
        com.cn
        com.ec
        com.fr
        com.hk
        com.mm
        com.mx
        com.pl
        com.ro
        com.ru
        com.sg
        com.tr
        com.tw
        cq.cn
        cri.nz
        de.com
        ecn.br
        edu.au
        edu.cn
        edu.hk
        edu.mm
        edu.mx
        edu.pl
        edu.tr
        edu.za
        eng.br
        ernet.in
        esp.br
        etc.br
        eti.br
        eu.com
        eu.lv
        fin.ec
        firm.ro
        fm.br
        fot.br
        fst.br
        g12.br
        gb.com
        gb.net
        gd.cn
        gen.nz
        gmina.pl
        go.jp
        go.kr
        go.th
        gob.mx
        gov.br
        gov.cn
        gov.ec
        gov.il
        gov.in
        gov.mm
        gov.mx
        gov.sg
        gov.tr
        gov.za
        govt.nz
        gs.cn
        gsm.pl
        gv.ac
        gv.at
        gx.cn
        gz.cn
        hb.cn
        he.cn
        hi.cn
        hk.cn
        hl.cn
        hn.cn
        hu.com
        idv.tw
        ind.br
        inf.br
        info.pl
        info.ro
        iwi.nz
        jl.cn
        jor.br
        jpn.com
        js.cn
        k12.il
        k12.tr
        lel.br
        ln.cn
        ltd.uk
        mail.pl
        maori.nz
        mb.ca
        me.uk
        med.br
        med.ec
        media.pl
        mi.th
        miasta.pl
        mil.br
        mil.ec
        mil.nz
        mil.pl
        mil.tr
        mil.za
        mo.cn
        muni.il
        nb.ca
        ne.jp
        ne.kr
        net.au
        net.br
        net.cn
        net.ec
        net.hk
        net.il
        net.in
        net.mm
        net.mx
        net.nz
        net.pl
        net.ru
        net.sg
        net.th
        net.tr
        net.tw
        net.za
        nf.ca
        ngo.za
        nm.cn
        nm.kr
        no.com
        nom.br
        nom.pl
        nom.ro
        nom.za
        ns.ca
        nt.ca
        nt.ro
        ntr.br
        nx.cn
        odo.br
        on.ca
        or.ac
        or.at
        or.jp
        or.kr
        or.th
        org.au
        org.br
        org.cn
        org.ec
        org.hk
        org.il
        org.mm
        org.mx
        org.nz
        org.pl
        org.ro
        org.ru
        org.sg
        org.tr
        org.tw
        org.uk
        org.za
        pc.pl
        pe.ca
        plc.uk
        ppg.br
        presse.fr
        priv.pl
        pro.br
        psc.br
        psi.br
        qc.ca
        qc.com
        qh.cn
        re.kr
        realestate.pl
        rec.br
        rec.ro
        rel.pl
        res.in
        ru.com
        sa.com
        sc.cn
        school.nz
        school.za
        se.com
        se.net
        sh.cn
        shop.pl
        sk.ca
        sklep.pl
        slg.br
        sn.cn
        sos.pl
        store.ro
        targi.pl
        tj.cn
        tm.fr
        tm.mc
        tm.pl
        tm.ro
        tm.za
        tmp.br
        tourism.pl
        travel.pl
        tur.br
        turystyka.pl
        tv.br
        tw.cn
        uk.co
        uk.com
        uk.net
        us.com
        uy.com
        vet.br
        web.za
        web.com
        www.ro
        xj.cn
        xz.cn
        yk.ca
        yn.cn
        za.com
    )

    host = uri.gsub(%r(https?://), '')
    host = host[%r(([^/]+))]
    host = host.split('.')

    if host[2]
        s = host[host.length - 2] + '.' + host[host.length - 1]
        s = host[host.length - 3] + '.' + s if domains.include?(s)
    else
        s = host * '.'
    end

    s
end

#get_hashed_password(password, realm) ⇒ Object 



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# File 'lib/pwdhash/pwdhash.rb', line 76

def get_hashed_password(password, realm)
  hash = PwdHash::Hash.new(realm, password)
  apply_constraints(hash.hash, hash.size, hash.contains_non_alphanumeric?)
end

#next_between(base, interval, extras) ⇒ Object 



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# File 'lib/pwdhash/pwdhash.rb', line 19

def next_between(base, interval, extras)
  char_code = between(base[0], interval, next_extra(extras))
  char_code.chr
end

#next_extra(extras) ⇒ Object 



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# File 'lib/pwdhash/pwdhash.rb', line 7

def next_extra(extras)
  extras.empty? ? 0 : extras.shift[0]
end

#next_extra_character(extras) ⇒ Object 



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# File 'lib/pwdhash/pwdhash.rb', line 3

def next_extra_character(extras)
  next_extra(extras).chr
end

#rotate(array, amount) ⇒ Object 



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# File 'lib/pwdhash/pwdhash.rb', line 11

def rotate(array, amount)
  amount.ord.downto(1) { array.push(array.shift) }
end