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289 lines
9.7 KiB
289 lines
9.7 KiB
// Copyright (c) 2014-2017, MyMonero.com
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"use strict"
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//
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const mnemonic = require('../cryptonote_utils/mnemonic')
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const monero_utils = require('./monero_cryptonote_utils_instance')
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const monero_config = require('./monero_config')
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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// Mnemonic wordset utilities - Exposing available names
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//
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const wordsetNamesByWordsetName = {}
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const allWordsetNames = Object.keys(mnemonic.mn_words)
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for (let wordsetName of allWordsetNames) {
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wordsetNamesByWordsetName[wordsetName] = wordsetName
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}
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exports.WordsetNamesByWordsetName = wordsetNamesByWordsetName
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exports.AllWordsetNames = allWordsetNames
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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// Mnemonic wordset utilities - Wordset name detection by mnemonic contents
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//
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function WordsetNameAccordingToMnemonicString(mnemonicString) // throws
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{
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const mnemonicString_words = mnemonicString.split(' ')
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if (mnemonicString_words.length == 0) {
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throw "Invalid mnemonic"
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}
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var wholeMnemonicSuspectedAsWordsetNamed = null // to derive
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for (let mnemonicString_word of mnemonicString_words) {
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var thisWordIsInWordsetNamed = null // to derive
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for (let wordsetName of allWordsetNames) {
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if (wordsetName === 'electrum') {
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continue // skip because it conflicts with 'english'
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}
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const wordsetWords = mnemonic.mn_words[wordsetName].words
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if (wordsetWords.indexOf(mnemonicString_word) !== -1) {
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thisWordIsInWordsetNamed = wordsetName
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break // done looking
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}
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// haven't found it yet
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}
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if (thisWordIsInWordsetNamed === null) { // didn't find this word in any of the mnemonic wordsets
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throw "Unrecognized mnemonic language"
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}
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if (wholeMnemonicSuspectedAsWordsetNamed === null) { // haven't found it yet
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wholeMnemonicSuspectedAsWordsetNamed = thisWordIsInWordsetNamed
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} else if (thisWordIsInWordsetNamed !== wholeMnemonicSuspectedAsWordsetNamed) {
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throw "Ambiguous mnemonic language" // multiple wordset names detected
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} else {
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// nothing to do but keep verifying the rest of the words that it's the same suspsected wordset
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}
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}
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if (wholeMnemonicSuspectedAsWordsetNamed === null) { // this might be redundant, but for logical rigor……
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throw "Unrecognized mnemonic language"
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}
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//
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return wholeMnemonicSuspectedAsWordsetNamed
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}
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exports.WordsetNameAccordingToMnemonicString = WordsetNameAccordingToMnemonicString
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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// Mnemonic wordset utilities - By locale
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//
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const mnemonicWordsetNamesByAppLocaleNames =
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{
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English: "english",
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Japanese: "japanese",
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Spanish: "spanish",
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Portuguese: "portuguese"
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// NOTE: no support for 'electrum' wordset here
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}
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exports.MnemonicWordsetNamesByAppLocaleNames = mnemonicWordsetNamesByAppLocaleNames
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//
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exports.DefaultWalletMnemonicWordsetName = mnemonicWordsetNamesByAppLocaleNames.English
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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// Wallet creation:
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//
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function NewlyCreatedWallet(mnemonic_wordsetName)
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{
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const seed = monero_utils.random_scalar() // to generate a 32-byte (25-word) but reduced seed
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const mnemonicString = mnemonic.mn_encode(seed, mnemonic_wordsetName)
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const keys = monero_utils.create_address(seed)
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//
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return {
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seed: seed,
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mnemonicString: mnemonicString,
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keys: keys
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}
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}
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exports.NewlyCreatedWallet = NewlyCreatedWallet
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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// Wallet login:
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//
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function MnemonicStringFromSeed(account_seed, mnemonic_wordsetName)
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{
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const mnemonicString = mnemonic.mn_encode(account_seed, mnemonic_wordsetName)
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//
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return mnemonicString
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}
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exports.MnemonicStringFromSeed = MnemonicStringFromSeed
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//
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function SeedAndKeysFromMnemonic_sync(mnemonicString, mnemonic_wordsetName)
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{ // -> {err_str?, seed?, keys?}
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mnemonicString = mnemonicString.toLowerCase() || ""
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try {
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var seed = null
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var keys = null
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switch (mnemonic_wordsetName) {
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case 'english':
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try {
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seed = mnemonic.mn_decode(mnemonicString)
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} catch (e) {
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// Try decoding as an electrum seed, on failure throw the original exception
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try {
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seed = mnemonic.mn_decode(mnemonicString, "electrum")
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} catch (ee) {
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throw e
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}
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}
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break
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default:
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seed = mnemonic.mn_decode(mnemonicString, mnemonic_wordsetName)
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break
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}
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if (seed === null) {
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return { err_str: "Unable to derive seed", seed: null, keys: null }
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}
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keys = monero_utils.create_address(seed)
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if (keys === null) {
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return { err_str: "Unable to derive keys from seed", seed: seed, keys: null }
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}
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return { err_str: null, seed: seed, keys: keys }
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} catch (e) {
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console.error("Invalid mnemonic!")
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return { err_str: typeof e === 'string' ? e : ""+e, seed: null, keys: null }
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}
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}
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exports.SeedAndKeysFromMnemonic_sync = SeedAndKeysFromMnemonic_sync
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function SeedAndKeysFromMnemonic(mnemonicString, mnemonic_wordsetName, fn) // made available via callback not because it's async but for convenience
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{ // fn: (err?, seed?, keys?)
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const payload = SeedAndKeysFromMnemonic_sync(mnemonicString, mnemonic_wordsetName)
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const err = payload.err_str ? new Error(payload.err_str) : null
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const seed = payload.seed
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const keys = payload.keys
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fn(err, seed, keys)
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}
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exports.SeedAndKeysFromMnemonic = SeedAndKeysFromMnemonic
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//
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function VerifiedComponentsForLogIn_sync(
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address,
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view_key,
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spend_key_orUndefinedForViewOnly,
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seed_orUndefined,
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wasAGeneratedWallet
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)
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{
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var spend_key
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if (typeof spend_key_orUndefinedForViewOnly === 'undefined' && (typeof seed_orUndefined === 'undefined' || seed_orUndefined === '') && wasAGeneratedWallet === false) {
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spend_key = ''
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} else {
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spend_key = spend_key_orUndefinedForViewOnly
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}
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const isInViewOnlyMode = (spend_key === '')
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if (!view_key || view_key.length !== 64 || (isInViewOnlyMode ? false : spend_key.length !== 64)) {
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return { err_str: "invalid secret key length" }
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}
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if (!monero_utils.valid_hex(view_key) || (isInViewOnlyMode ? false : !monero_utils.valid_hex(spend_key))) {
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return { err_str: "invalid hex formatting" }
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}
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var public_keys;
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try {
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public_keys = monero_utils.decode_address(address)
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} catch (e) {
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return { err_str: "invalid address" }
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}
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var expected_view_pub;
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try {
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expected_view_pub = monero_utils.sec_key_to_pub(view_key)
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} catch (e) {
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return { err_str: "invalid view key" }
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}
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var expected_spend_pub
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if (spend_key.length === 64) {
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try {
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expected_spend_pub = monero_utils.sec_key_to_pub(spend_key)
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} catch (e) {
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return { err_str: "invalid spend key" }
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}
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}
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if (public_keys.view !== expected_view_pub) {
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return { err_str: "invalid view key" }
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}
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if (!isInViewOnlyMode && (public_keys.spend !== expected_spend_pub)) {
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return { err_str: "invalid spend key" }
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}
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const private_keys =
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{
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view: view_key,
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spend: spend_key
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}
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var account_seed = null; // default
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if (typeof seed_orUndefined !== 'undefined' && seed_orUndefined && seed_orUndefined.length != 0) {
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var expected_account;
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try {
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expected_account = monero_utils.create_address(seed_orUndefined)
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} catch (e) {
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return { err_str: "invalid seed" }
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}
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if (expected_account.view.sec !== view_key ||
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expected_account.spend.sec !== spend_key ||
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expected_account.public_addr !== address) {
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return { err_str: "invalid seed" }
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}
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account_seed = seed_orUndefined
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}
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const payload =
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{
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err_str: null, // err
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address: address,
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account_seed: account_seed !== "" ? account_seed : null,
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public_keys: public_keys,
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private_keys: private_keys,
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isInViewOnlyMode: isInViewOnlyMode
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}
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return payload
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}
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exports.VerifiedComponentsForLogIn_sync = VerifiedComponentsForLogIn_sync
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//
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function VerifiedComponentsForLogIn(
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address,
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view_key,
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spend_key_orUndefinedForViewOnly,
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seed_orUndefined,
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wasAGeneratedWallet,
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fn
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)
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{ // fn: (err?, address, account_seed, public_keys, private_keys, isInViewOnlyMode) -> Void
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const payload = VerifiedComponentsForLogIn_sync(
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address,
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view_key,
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spend_key_orUndefinedForViewOnly,
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seed_orUndefined,
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wasAGeneratedWallet
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)
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fn(
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payload.err_str ? new Error(payload.err_str) : null,
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payload.address,
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payload.account_seed,
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payload.public_keys,
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payload.private_keys,
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payload.isInViewOnlyMode
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)
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}
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exports.VerifiedComponentsForLogIn = VerifiedComponentsForLogIn |