nextcloud / passman-webextension

 * Nextcloud - passman

 *

 * @copyright Copyright (c) 2016, Sander Brand ([email protected])

 * @copyright Copyright (c) 2016, Marcos Zuriaga Miguel ([email protected])

 * @license GNU AGPL version 3 or any later version

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Affero General Public License as

 * published by the Free Software Foundation, either version 3 of the

 * License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU Affero General Public License for more details.

 *

 * You should have received a copy of the GNU Affero General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 */

function Arcfour () {

    this.j = this.i = 0, this.S = []

}

function ARC4init (r) {

    var t, n, e;

    for (t = 0; 256 > t; ++t)this.S[t] = t

    for (t = n = 0; 256 > t; ++t)n = n + this.S[t] + r[t % r.length] & 255, e = this.S[t], this.S[t] = this.S[n], this.S[n] = e

    this.j = this.i = 0

}

function ARC4next () {

    var r;

    return this.i = this.i + 1 & 255, this.j = this.j + this.S[this.i] & 255, r = this.S[this.i], this.S[this.i] = this.S[this.j], this.S[this.j] = r, this.S[r + this.S[this.i] & 255]

}

function prng_newstate () {

    return new Arcfour

}

function rng_seed_int (r) {

    rng_pool[rng_pptr++] ^= 255 & r, rng_pool[rng_pptr++] ^= r >> 8 & 255, rng_pool[rng_pptr++] ^= r >> 16 & 255, rng_pool[rng_pptr++] ^= r >> 24 & 255, rng_pptr >= rng_psize && (rng_pptr -= rng_psize)

}

function rng_seed_time () {

    rng_seed_int((new Date).getTime())

}

function rng_get_byte () {

    if (null == rng_state) {

        for (rng_seed_time(), rng_state = prng_newstate(), rng_state.init(rng_pool), rng_pptr = 0; rng_pptr < rng_pool.length; ++rng_pptr)rng_pool[rng_pptr] = 0

        rng_pptr = 0

    }

    return rng_state.next()

}

function rng_get_bytes (r) {

    var t;

    for (t = 0; t < r.length; ++t)r[t] = rng_get_byte()

}

function SecureRandom () {

}

function get_random (r, t) {

    var n, e, o, i = t - r + 1

    for (rng_seed_time(), n = [], e = 0; 4 > e; e++)n[e] = 0

    for (rng_get_bytes(n), o = 0, e = 0; 4 > e; e++)o *= 256, o += n[e]

    return o %= i, o += r

}

function get_random_password (r, t) {

    var n;

    var pwlen, newpw;

    for ("number" != typeof r && (r = 12), "number" != typeof t && (t = 16), r > t && (n = r, r = t, t = n), pwlen = get_random(r, t), newpw = ""; newpw.length < pwlen;)newpw += String.fromCharCode(get_random(32, 127))

    return newpw

}

var rng_psize, rng_state, rng_pool, rng_pptr, t, z, crypt_obj, num, buf, i

if (Arcfour.prototype.init = ARC4init, Arcfour.prototype.next = ARC4next, rng_psize = 256, null == rng_pool) {

    /** global: navigator */

    if (rng_pool = [], rng_pptr = 0, "undefined" != typeof navigator && "Netscape" == navigator.appName && navigator.appVersion < "5" && "undefined" != typeof window && window.crypto)for (z = window.crypto.random(32), t = 0; t < z.length; ++t)rng_pool[rng_pptr++] = 255 & z.charCodeAt(t)

    try {

        if (crypt_obj = null, "undefined" != typeof window && void 0 !== window.crypto ? crypt_obj = window.crypto : "undefined" != typeof window && void 0 !== window.msCrypto && (crypt_obj = window.msCrypto), void 0 !== crypt_obj && "function" == typeof crypt_obj.getRandomValues && rng_psize > rng_pptr)for (num = Math.floor((rng_psize - rng_pptr) / 2) + 1, buf = new Uint16Array(num), crypt_obj.getRandomValues(buf), i = 0; i < buf.length; i++)t = buf[i], rng_pool[rng_pptr++] = t >>> 8, rng_pool[rng_pptr++] = 255 & t

    } catch (e) {

    }

    for (; rng_psize > rng_pptr;)t = Math.floor(65536 * sjcl.random.randomWords(1)), rng_pool[rng_pptr++] = t >>> 8, rng_pool[rng_pptr++] = 255 & t

    rng_pptr = 0, rng_seed_time()

}