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1 | (function() { | |
2 | ||
3 | // mnemonics is populated as required by getLanguage | |
4 | var mnemonics = { "english": new Mnemonic("english") }; | |
5 | var mnemonic = mnemonics["english"]; | |
6 | var seed = null | |
7 | var bip32RootKey = null; | |
8 | var bip32ExtendedKey = null; | |
9 | var network = bitcoin.networks.bitcoin; | |
10 | var addressRowTemplate = $("#address-row-template"); | |
11 | ||
12 | var showIndex = true; | |
13 | var showAddress = true; | |
14 | var showPubKey = true; | |
15 | var showPrivKey = true; | |
16 | ||
17 | var entropyChangeTimeoutEvent = null; | |
18 | var phraseChangeTimeoutEvent = null; | |
19 | var rootKeyChangedTimeoutEvent = null; | |
20 | ||
21 | var DOM = {}; | |
22 | DOM.network = $(".network"); | |
23 | DOM.phraseNetwork = $("#network-phrase"); | |
24 | DOM.useEntropy = $(".use-entropy"); | |
25 | DOM.entropyContainer = $(".entropy-container"); | |
26 | DOM.entropy = $(".entropy"); | |
27 | DOM.entropyError = $(".entropy-error"); | |
28 | DOM.phrase = $(".phrase"); | |
29 | DOM.passphrase = $(".passphrase"); | |
30 | DOM.generateContainer = $(".generate-container"); | |
31 | DOM.generate = $(".generate"); | |
32 | DOM.seed = $(".seed"); | |
33 | DOM.rootKey = $(".root-key"); | |
34 | DOM.extendedPrivKey = $(".extended-priv-key"); | |
35 | DOM.extendedPubKey = $(".extended-pub-key"); | |
36 | DOM.bip32tab = $("#bip32-tab"); | |
37 | DOM.bip44tab = $("#bip44-tab"); | |
38 | DOM.bip32panel = $("#bip32"); | |
39 | DOM.bip44panel = $("#bip44"); | |
40 | DOM.bip32path = $("#bip32-path"); | |
41 | DOM.bip44path = $("#bip44-path"); | |
42 | DOM.bip44purpose = $("#bip44 .purpose"); | |
43 | DOM.bip44coin = $("#bip44 .coin"); | |
44 | DOM.bip44account = $("#bip44 .account"); | |
45 | DOM.bip44change = $("#bip44 .change"); | |
46 | DOM.strength = $(".strength"); | |
47 | DOM.hardenedAddresses = $(".hardened-addresses"); | |
48 | DOM.addresses = $(".addresses"); | |
49 | DOM.rowsToAdd = $(".rows-to-add"); | |
50 | DOM.more = $(".more"); | |
51 | DOM.feedback = $(".feedback"); | |
52 | DOM.tab = $(".derivation-type a"); | |
53 | DOM.indexToggle = $(".index-toggle"); | |
54 | DOM.addressToggle = $(".address-toggle"); | |
55 | DOM.publicKeyToggle = $(".public-key-toggle"); | |
56 | DOM.privateKeyToggle = $(".private-key-toggle"); | |
57 | DOM.languages = $(".languages a"); | |
58 | ||
59 | function init() { | |
60 | // Events | |
61 | DOM.network.on("change", networkChanged); | |
62 | DOM.useEntropy.on("change", setEntropyVisibility); | |
63 | DOM.entropy.on("input", delayedEntropyChanged); | |
64 | DOM.phrase.on("input", delayedPhraseChanged); | |
65 | DOM.passphrase.on("input", delayedPhraseChanged); | |
66 | DOM.generate.on("click", generateClicked); | |
67 | DOM.more.on("click", showMore); | |
68 | DOM.rootKey.on("input", delayedRootKeyChanged); | |
69 | DOM.bip32path.on("input", calcForDerivationPath); | |
70 | DOM.bip44purpose.on("input", calcForDerivationPath); | |
71 | DOM.bip44coin.on("input", calcForDerivationPath); | |
72 | DOM.bip44account.on("input", calcForDerivationPath); | |
73 | DOM.bip44change.on("input", calcForDerivationPath); | |
74 | DOM.tab.on("shown.bs.tab", calcForDerivationPath); | |
75 | DOM.hardenedAddresses.on("change", calcForDerivationPath); | |
76 | DOM.indexToggle.on("click", toggleIndexes); | |
77 | DOM.addressToggle.on("click", toggleAddresses); | |
78 | DOM.publicKeyToggle.on("click", togglePublicKeys); | |
79 | DOM.privateKeyToggle.on("click", togglePrivateKeys); | |
80 | DOM.languages.on("click", languageChanged); | |
81 | disableForms(); | |
82 | hidePending(); | |
83 | hideValidationError(); | |
84 | populateNetworkSelect(); | |
85 | } | |
86 | ||
87 | // Event handlers | |
88 | ||
89 | function networkChanged(e) { | |
90 | var networkIndex = e.target.value; | |
91 | networks[networkIndex].onSelect(); | |
92 | if (seed != null) { | |
93 | phraseChanged(); | |
94 | } | |
95 | else { | |
96 | rootKeyChanged(); | |
97 | } | |
98 | } | |
99 | ||
100 | function setEntropyVisibility() { | |
101 | if (isUsingOwnEntropy()) { | |
102 | DOM.entropyContainer.removeClass("hidden"); | |
103 | DOM.generateContainer.addClass("hidden"); | |
104 | DOM.phrase.prop("readonly", true); | |
105 | DOM.entropy.focus(); | |
106 | entropyChanged(); | |
107 | } | |
108 | else { | |
109 | DOM.entropyContainer.addClass("hidden"); | |
110 | DOM.generateContainer.removeClass("hidden"); | |
111 | DOM.phrase.prop("readonly", false); | |
112 | } | |
113 | } | |
114 | ||
115 | function delayedPhraseChanged() { | |
116 | hideValidationError(); | |
117 | showPending(); | |
118 | if (phraseChangeTimeoutEvent != null) { | |
119 | clearTimeout(phraseChangeTimeoutEvent); | |
120 | } | |
121 | phraseChangeTimeoutEvent = setTimeout(phraseChanged, 400); | |
122 | } | |
123 | ||
124 | function phraseChanged() { | |
125 | showPending(); | |
126 | hideValidationError(); | |
127 | setMnemonicLanguage(); | |
128 | // Get the mnemonic phrase | |
129 | var phrase = DOM.phrase.val(); | |
130 | var errorText = findPhraseErrors(phrase); | |
131 | if (errorText) { | |
132 | showValidationError(errorText); | |
133 | return; | |
134 | } | |
135 | // Calculate and display | |
136 | var passphrase = DOM.passphrase.val(); | |
137 | calcBip32RootKeyFromSeed(phrase, passphrase); | |
138 | calcForDerivationPath(); | |
139 | hidePending(); | |
140 | } | |
141 | ||
142 | function delayedEntropyChanged() { | |
143 | hideValidationError(); | |
144 | showPending(); | |
145 | if (entropyChangeTimeoutEvent != null) { | |
146 | clearTimeout(entropyChangeTimeoutEvent); | |
147 | } | |
148 | entropyChangeTimeoutEvent = setTimeout(entropyChanged, 400); | |
149 | } | |
150 | ||
151 | function entropyChanged() { | |
152 | setMnemonicFromEntropy(); | |
153 | phraseChanged(); | |
154 | } | |
155 | ||
156 | function delayedRootKeyChanged() { | |
157 | // Warn if there is an existing mnemonic or passphrase. | |
158 | if (DOM.phrase.val().length > 0 || DOM.passphrase.val().length > 0) { | |
159 | if (!confirm("This will clear existing mnemonic and passphrase")) { | |
160 | DOM.rootKey.val(bip32RootKey); | |
161 | return | |
162 | } | |
163 | } | |
164 | hideValidationError(); | |
165 | showPending(); | |
166 | // Clear existing mnemonic and passphrase | |
167 | DOM.phrase.val(""); | |
168 | DOM.passphrase.val(""); | |
169 | seed = null; | |
170 | if (rootKeyChangedTimeoutEvent != null) { | |
171 | clearTimeout(rootKeyChangedTimeoutEvent); | |
172 | } | |
173 | rootKeyChangedTimeoutEvent = setTimeout(rootKeyChanged, 400); | |
174 | } | |
175 | ||
176 | function rootKeyChanged() { | |
177 | showPending(); | |
178 | hideValidationError(); | |
179 | // Validate the root key TODO | |
180 | var rootKeyBase58 = DOM.rootKey.val(); | |
181 | var errorText = validateRootKey(rootKeyBase58); | |
182 | if (errorText) { | |
183 | showValidationError(errorText); | |
184 | return; | |
185 | } | |
186 | // Calculate and display | |
187 | calcBip32RootKeyFromBase58(rootKeyBase58); | |
188 | calcForDerivationPath(); | |
189 | hidePending(); | |
190 | } | |
191 | ||
192 | function calcForDerivationPath() { | |
193 | showPending(); | |
194 | hideValidationError(); | |
195 | // Get the derivation path | |
196 | var derivationPath = getDerivationPath(); | |
197 | var errorText = findDerivationPathErrors(derivationPath); | |
198 | if (errorText) { | |
199 | showValidationError(errorText); | |
200 | return; | |
201 | } | |
202 | calcBip32ExtendedKey(derivationPath); | |
203 | displayBip32Info(); | |
204 | hidePending(); | |
205 | } | |
206 | ||
207 | function generateClicked() { | |
208 | if (isUsingOwnEntropy()) { | |
209 | return; | |
210 | } | |
211 | clearDisplay(); | |
212 | showPending(); | |
213 | setTimeout(function() { | |
214 | setMnemonicLanguage(); | |
215 | var phrase = generateRandomPhrase(); | |
216 | if (!phrase) { | |
217 | return; | |
218 | } | |
219 | phraseChanged(); | |
220 | }, 50); | |
221 | } | |
222 | ||
223 | function languageChanged() { | |
224 | setTimeout(function() { | |
225 | setMnemonicLanguage(); | |
226 | if (DOM.phrase.val().length > 0) { | |
227 | var newPhrase = convertPhraseToNewLanguage(); | |
228 | DOM.phrase.val(newPhrase); | |
229 | phraseChanged(); | |
230 | } | |
231 | else { | |
232 | DOM.generate.trigger("click"); | |
233 | } | |
234 | }, 50); | |
235 | } | |
236 | ||
237 | function toggleIndexes() { | |
238 | showIndex = !showIndex; | |
239 | $("td.index span").toggleClass("invisible"); | |
240 | } | |
241 | ||
242 | function toggleAddresses() { | |
243 | showAddress = !showAddress; | |
244 | $("td.address span").toggleClass("invisible"); | |
245 | } | |
246 | ||
247 | function togglePublicKeys() { | |
248 | showPubKey = !showPubKey; | |
249 | $("td.pubkey span").toggleClass("invisible"); | |
250 | } | |
251 | ||
252 | function togglePrivateKeys() { | |
253 | showPrivKey = !showPrivKey; | |
254 | $("td.privkey span").toggleClass("invisible"); | |
255 | } | |
256 | ||
257 | // Private methods | |
258 | ||
259 | function generateRandomPhrase() { | |
260 | if (!hasStrongRandom()) { | |
261 | var errorText = "This browser does not support strong randomness"; | |
262 | showValidationError(errorText); | |
263 | return; | |
264 | } | |
265 | var numWords = parseInt(DOM.strength.val()); | |
266 | var strength = numWords / 3 * 32; | |
267 | var words = mnemonic.generate(strength); | |
268 | DOM.phrase.val(words); | |
269 | return words; | |
270 | } | |
271 | ||
272 | function calcBip32RootKeyFromSeed(phrase, passphrase) { | |
273 | seed = mnemonic.toSeed(phrase, passphrase); | |
274 | bip32RootKey = bitcoin.HDNode.fromSeedHex(seed, network); | |
275 | } | |
276 | ||
277 | function calcBip32RootKeyFromBase58(rootKeyBase58) { | |
278 | bip32RootKey = bitcoin.HDNode.fromBase58(rootKeyBase58, network); | |
279 | } | |
280 | ||
281 | function calcBip32ExtendedKey(path) { | |
282 | bip32ExtendedKey = bip32RootKey; | |
283 | // Derive the key from the path | |
284 | var pathBits = path.split("/"); | |
285 | for (var i=0; i<pathBits.length; i++) { | |
286 | var bit = pathBits[i]; | |
287 | var index = parseInt(bit); | |
288 | if (isNaN(index)) { | |
289 | continue; | |
290 | } | |
291 | var hardened = bit[bit.length-1] == "'"; | |
292 | if (hardened) { | |
293 | bip32ExtendedKey = bip32ExtendedKey.deriveHardened(index); | |
294 | } | |
295 | else { | |
296 | bip32ExtendedKey = bip32ExtendedKey.derive(index); | |
297 | } | |
298 | } | |
299 | } | |
300 | ||
301 | function showValidationError(errorText) { | |
302 | DOM.feedback | |
303 | .text(errorText) | |
304 | .show(); | |
305 | } | |
306 | ||
307 | function hideValidationError() { | |
308 | DOM.feedback | |
309 | .text("") | |
310 | .hide(); | |
311 | } | |
312 | ||
313 | function findPhraseErrors(phrase) { | |
314 | // TODO make this right | |
315 | // Preprocess the words | |
316 | phrase = mnemonic.normalizeString(phrase); | |
317 | var words = phraseToWordArray(phrase); | |
318 | // Check each word | |
319 | for (var i=0; i<words.length; i++) { | |
320 | var word = words[i]; | |
321 | var language = getLanguage(); | |
322 | if (WORDLISTS[language].indexOf(word) == -1) { | |
323 | console.log("Finding closest match to " + word); | |
324 | var nearestWord = findNearestWord(word); | |
325 | return word + " not in wordlist, did you mean " + nearestWord + "?"; | |
326 | } | |
327 | } | |
328 | // Check the words are valid | |
329 | var properPhrase = wordArrayToPhrase(words); | |
330 | var isValid = mnemonic.check(properPhrase); | |
331 | if (!isValid) { | |
332 | return "Invalid mnemonic"; | |
333 | } | |
334 | return false; | |
335 | } | |
336 | ||
337 | function validateRootKey(rootKeyBase58) { | |
338 | try { | |
339 | bitcoin.HDNode.fromBase58(rootKeyBase58); | |
340 | } | |
341 | catch (e) { | |
342 | return "Invalid root key"; | |
343 | } | |
344 | return ""; | |
345 | } | |
346 | ||
347 | function getDerivationPath() { | |
348 | if (DOM.bip44tab.hasClass("active")) { | |
349 | var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44); | |
350 | var coin = parseIntNoNaN(DOM.bip44coin.val(), 0); | |
351 | var account = parseIntNoNaN(DOM.bip44account.val(), 0); | |
352 | var change = parseIntNoNaN(DOM.bip44change.val(), 0); | |
353 | var path = "m/"; | |
354 | path += purpose + "'/"; | |
355 | path += coin + "'/"; | |
356 | path += account + "'/"; | |
357 | path += change; | |
358 | DOM.bip44path.val(path); | |
359 | var derivationPath = DOM.bip44path.val(); | |
360 | console.log("Using derivation path from BIP44 tab: " + derivationPath); | |
361 | return derivationPath; | |
362 | } | |
363 | else if (DOM.bip32tab.hasClass("active")) { | |
364 | var derivationPath = DOM.bip32path.val(); | |
365 | console.log("Using derivation path from BIP32 tab: " + derivationPath); | |
366 | return derivationPath; | |
367 | } | |
368 | else { | |
369 | console.log("Unknown derivation path"); | |
370 | } | |
371 | } | |
372 | ||
373 | function findDerivationPathErrors(path) { | |
374 | // TODO is not perfect but is better than nothing | |
375 | // Inspired by | |
376 | // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors | |
377 | // and | |
378 | // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys | |
379 | var maxDepth = 255; // TODO verify this!! | |
380 | var maxIndexValue = Math.pow(2, 31); // TODO verify this!! | |
381 | if (path[0] != "m") { | |
382 | return "First character must be 'm'"; | |
383 | } | |
384 | if (path.length > 1) { | |
385 | if (path[1] != "/") { | |
386 | return "Separator must be '/'"; | |
387 | } | |
388 | var indexes = path.split("/"); | |
389 | if (indexes.length > maxDepth) { | |
390 | return "Derivation depth is " + indexes.length + ", must be less than " + maxDepth; | |
391 | } | |
392 | for (var depth = 1; depth<indexes.length; depth++) { | |
393 | var index = indexes[depth]; | |
394 | var invalidChars = index.replace(/^[0-9]+'?$/g, "") | |
395 | if (invalidChars.length > 0) { | |
396 | return "Invalid characters " + invalidChars + " found at depth " + depth; | |
397 | } | |
398 | var indexValue = parseInt(index.replace("'", "")); | |
399 | if (isNaN(depth)) { | |
400 | return "Invalid number at depth " + depth; | |
401 | } | |
402 | if (indexValue > maxIndexValue) { | |
403 | return "Value of " + indexValue + " at depth " + depth + " must be less than " + maxIndexValue; | |
404 | } | |
405 | } | |
406 | } | |
407 | return false; | |
408 | } | |
409 | ||
410 | function displayBip32Info() { | |
411 | // Display the key | |
412 | DOM.seed.val(seed); | |
413 | var rootKey = bip32RootKey.toBase58(); | |
414 | DOM.rootKey.val(rootKey); | |
415 | var extendedPrivKey = bip32ExtendedKey.toBase58(); | |
416 | DOM.extendedPrivKey.val(extendedPrivKey); | |
417 | var extendedPubKey = bip32ExtendedKey.toBase58(false); | |
418 | DOM.extendedPubKey.val(extendedPubKey); | |
419 | // Display the addresses and privkeys | |
420 | clearAddressesList(); | |
421 | displayAddresses(0, 20); | |
422 | } | |
423 | ||
424 | function displayAddresses(start, total) { | |
425 | for (var i=0; i<total; i++) { | |
426 | var index = i + start; | |
427 | new TableRow(index); | |
428 | } | |
429 | } | |
430 | ||
431 | function TableRow(index) { | |
432 | ||
433 | var useHardenedAddresses = DOM.hardenedAddresses.prop("checked"); | |
434 | ||
435 | function init() { | |
436 | calculateValues(); | |
437 | } | |
438 | ||
439 | function calculateValues() { | |
440 | setTimeout(function() { | |
441 | var key = ""; | |
442 | if (useHardenedAddresses) { | |
443 | key = bip32ExtendedKey.deriveHardened(index); | |
444 | } | |
445 | else { | |
446 | key = bip32ExtendedKey.derive(index); | |
447 | } | |
448 | var address = key.getAddress().toString(); | |
449 | var privkey = key.privKey.toWIF(network); | |
450 | var pubkey = key.pubKey.toHex(); | |
451 | var indexText = getDerivationPath() + "/" + index; | |
452 | if (useHardenedAddresses) { | |
453 | indexText = indexText + "'"; | |
454 | } | |
455 | addAddressToList(indexText, address, pubkey, privkey); | |
456 | }, 50) | |
457 | } | |
458 | ||
459 | init(); | |
460 | ||
461 | } | |
462 | ||
463 | function showMore() { | |
464 | var start = DOM.addresses.children().length; | |
465 | var rowsToAdd = parseInt(DOM.rowsToAdd.val()); | |
466 | if (isNaN(rowsToAdd)) { | |
467 | rowsToAdd = 20; | |
468 | DOM.rowsToAdd.val("20"); | |
469 | } | |
470 | if (rowsToAdd > 200) { | |
471 | var msg = "Generating " + rowsToAdd + " rows could take a while. "; | |
472 | msg += "Do you want to continue?"; | |
473 | if (!confirm(msg)) { | |
474 | return; | |
475 | } | |
476 | } | |
477 | displayAddresses(start, rowsToAdd); | |
478 | } | |
479 | ||
480 | function clearDisplay() { | |
481 | clearAddressesList(); | |
482 | clearKey(); | |
483 | hideValidationError(); | |
484 | } | |
485 | ||
486 | function clearAddressesList() { | |
487 | DOM.addresses.empty(); | |
488 | } | |
489 | ||
490 | function clearKey() { | |
491 | DOM.rootKey.val(""); | |
492 | DOM.extendedPrivKey.val(""); | |
493 | DOM.extendedPubKey.val(""); | |
494 | } | |
495 | ||
496 | function addAddressToList(indexText, address, pubkey, privkey) { | |
497 | var row = $(addressRowTemplate.html()); | |
498 | // Elements | |
499 | var indexCell = row.find(".index span"); | |
500 | var addressCell = row.find(".address span"); | |
501 | var pubkeyCell = row.find(".pubkey span"); | |
502 | var privkeyCell = row.find(".privkey span"); | |
503 | // Content | |
504 | indexCell.text(indexText); | |
505 | addressCell.text(address); | |
506 | pubkeyCell.text(pubkey); | |
507 | privkeyCell.text(privkey); | |
508 | // Visibility | |
509 | if (!showIndex) { | |
510 | indexCell.addClass("invisible"); | |
511 | } | |
512 | if (!showAddress) { | |
513 | addressCell.addClass("invisible"); | |
514 | } | |
515 | if (!showPubKey) { | |
516 | pubkeyCell.addClass("invisible"); | |
517 | } | |
518 | if (!showPrivKey) { | |
519 | privkeyCell.addClass("invisible"); | |
520 | } | |
521 | DOM.addresses.append(row); | |
522 | } | |
523 | ||
524 | function hasStrongRandom() { | |
525 | return 'crypto' in window && window['crypto'] !== null; | |
526 | } | |
527 | ||
528 | function disableForms() { | |
529 | $("form").on("submit", function(e) { | |
530 | e.preventDefault(); | |
531 | }); | |
532 | } | |
533 | ||
534 | function parseIntNoNaN(val, defaultVal) { | |
535 | var v = parseInt(val); | |
536 | if (isNaN(v)) { | |
537 | return defaultVal; | |
538 | } | |
539 | return v; | |
540 | } | |
541 | ||
542 | function showPending() { | |
543 | DOM.feedback | |
544 | .text("Calculating...") | |
545 | .show(); | |
546 | } | |
547 | ||
548 | function findNearestWord(word) { | |
549 | var language = getLanguage(); | |
550 | var words = WORDLISTS[language]; | |
551 | var minDistance = 99; | |
552 | var closestWord = words[0]; | |
553 | for (var i=0; i<words.length; i++) { | |
554 | var comparedTo = words[i]; | |
555 | var distance = Levenshtein.get(word, comparedTo); | |
556 | if (distance < minDistance) { | |
557 | closestWord = comparedTo; | |
558 | minDistance = distance; | |
559 | } | |
560 | } | |
561 | return closestWord; | |
562 | } | |
563 | ||
564 | function hidePending() { | |
565 | DOM.feedback | |
566 | .text("") | |
567 | .hide(); | |
568 | } | |
569 | ||
570 | function populateNetworkSelect() { | |
571 | for (var i=0; i<networks.length; i++) { | |
572 | var network = networks[i]; | |
573 | var option = $("<option>"); | |
574 | option.attr("value", i); | |
575 | option.text(network.name); | |
576 | DOM.phraseNetwork.append(option); | |
577 | } | |
578 | } | |
579 | ||
580 | function getLanguage() { | |
581 | var defaultLanguage = "english"; | |
582 | // Try to get from existing phrase | |
583 | var language = getLanguageFromPhrase(); | |
584 | // Try to get from url if not from phrase | |
585 | if (language.length == 0) { | |
586 | language = getLanguageFromUrl(); | |
587 | } | |
588 | // Default to English if no other option | |
589 | if (language.length == 0) { | |
590 | language = defaultLanguage; | |
591 | } | |
592 | return language; | |
593 | } | |
594 | ||
595 | function getLanguageFromPhrase(phrase) { | |
596 | // Check if how many words from existing phrase match a language. | |
597 | var language = ""; | |
598 | if (!phrase) { | |
599 | phrase = DOM.phrase.val(); | |
600 | } | |
601 | if (phrase.length > 0) { | |
602 | var words = phraseToWordArray(phrase); | |
603 | var languageMatches = {}; | |
604 | for (l in WORDLISTS) { | |
605 | // Track how many words match in this language | |
606 | languageMatches[l] = 0; | |
607 | for (var i=0; i<words.length; i++) { | |
608 | var wordInLanguage = WORDLISTS[l].indexOf(words[i]) > -1; | |
609 | if (wordInLanguage) { | |
610 | languageMatches[l]++; | |
611 | } | |
612 | } | |
613 | // Find languages with most word matches. | |
614 | // This is made difficult due to commonalities between Chinese | |
615 | // simplified vs traditional. | |
616 | var mostMatches = 0; | |
617 | var mostMatchedLanguages = []; | |
618 | for (var l in languageMatches) { | |
619 | var numMatches = languageMatches[l]; | |
620 | if (numMatches > mostMatches) { | |
621 | mostMatches = numMatches; | |
622 | mostMatchedLanguages = [l]; | |
623 | } | |
624 | else if (numMatches == mostMatches) { | |
625 | mostMatchedLanguages.push(l); | |
626 | } | |
627 | } | |
628 | } | |
629 | if (mostMatchedLanguages.length > 0) { | |
630 | // Use first language and warn if multiple detected | |
631 | language = mostMatchedLanguages[0]; | |
632 | if (mostMatchedLanguages.length > 1) { | |
633 | console.warn("Multiple possible languages"); | |
634 | console.warn(mostMatchedLanguages); | |
635 | } | |
636 | } | |
637 | } | |
638 | return language; | |
639 | } | |
640 | ||
641 | function getLanguageFromUrl() { | |
642 | for (var language in WORDLISTS) { | |
643 | if (window.location.hash.indexOf(language) > -1) { | |
644 | return language; | |
645 | } | |
646 | } | |
647 | return ""; | |
648 | } | |
649 | ||
650 | function setMnemonicLanguage() { | |
651 | var language = getLanguage(); | |
652 | // Load the bip39 mnemonic generator for this language if required | |
653 | if (!(language in mnemonics)) { | |
654 | mnemonics[language] = new Mnemonic(language); | |
655 | } | |
656 | mnemonic = mnemonics[language]; | |
657 | } | |
658 | ||
659 | function convertPhraseToNewLanguage() { | |
660 | var oldLanguage = getLanguageFromPhrase(); | |
661 | var newLanguage = getLanguageFromUrl(); | |
662 | var oldPhrase = DOM.phrase.val(); | |
663 | var oldWords = phraseToWordArray(oldPhrase); | |
664 | var newWords = []; | |
665 | for (var i=0; i<oldWords.length; i++) { | |
666 | var oldWord = oldWords[i]; | |
667 | var index = WORDLISTS[oldLanguage].indexOf(oldWord); | |
668 | var newWord = WORDLISTS[newLanguage][index]; | |
669 | newWords.push(newWord); | |
670 | } | |
671 | newPhrase = wordArrayToPhrase(newWords); | |
672 | return newPhrase; | |
673 | } | |
674 | ||
675 | // TODO look at jsbip39 - mnemonic.splitWords | |
676 | function phraseToWordArray(phrase) { | |
677 | var words = phrase.split(/\s/g); | |
678 | var noBlanks = []; | |
679 | for (var i=0; i<words.length; i++) { | |
680 | var word = words[i]; | |
681 | if (word.length > 0) { | |
682 | noBlanks.push(word); | |
683 | } | |
684 | } | |
685 | return noBlanks; | |
686 | } | |
687 | ||
688 | // TODO look at jsbip39 - mnemonic.joinWords | |
689 | function wordArrayToPhrase(words) { | |
690 | var phrase = words.join(" "); | |
691 | var language = getLanguageFromPhrase(phrase); | |
692 | if (language == "japanese") { | |
693 | phrase = words.join("\u3000"); | |
694 | } | |
695 | return phrase; | |
696 | } | |
697 | ||
698 | function isUsingOwnEntropy() { | |
699 | return DOM.useEntropy.prop("checked"); | |
700 | } | |
701 | ||
702 | function setMnemonicFromEntropy() { | |
703 | hideEntropyError(); | |
704 | // Work out minimum base for entropy | |
705 | var entropyStr = DOM.entropy.val(); | |
706 | var entropy = Entropy.fromString(entropyStr); | |
707 | if (entropy.hexStr.length == 0) { | |
708 | return; | |
709 | } | |
710 | // Show entropy details | |
711 | var extraBits = 32 - (entropy.binaryStr.length % 32); | |
712 | var extraChars = Math.ceil(extraBits * Math.log(2) / Math.log(entropy.base.asInt)); | |
713 | var strength = "an extremely weak"; | |
714 | if (entropy.hexStr.length >= 8) { | |
715 | strength = "a very weak"; | |
716 | } | |
717 | if (entropy.hexStr.length >= 12) { | |
718 | strength = "a weak"; | |
719 | } | |
720 | if (entropy.hexStr.length >= 24) { | |
721 | strength = "a strong"; | |
722 | } | |
723 | if (entropy.hexStr.length >= 32) { | |
724 | strength = "a very strong"; | |
725 | } | |
726 | if (entropy.hexStr.length >= 40) { | |
727 | strength = "an extremely strong"; | |
728 | } | |
729 | if (entropy.hexStr.length >=48) { | |
730 | strength = "an even stronger" | |
731 | } | |
732 | var msg = "Have " + entropy.binaryStr.length + " bits of entropy, " + extraChars + " more " + entropy.base.str + " chars required to generate " + strength + " mnemonic: " + entropy.cleanStr; | |
733 | showEntropyError(msg); | |
734 | // Discard trailing entropy | |
735 | var hexStr = entropy.hexStr.substring(0, Math.floor(entropy.hexStr.length / 8) * 8); | |
736 | // Convert entropy string to numeric array | |
737 | var entropyArr = []; | |
738 | for (var i=0; i<hexStr.length / 2; i++) { | |
739 | var entropyByte = parseInt(hexStr[i*2].concat(hexStr[i*2+1]), 16); | |
740 | entropyArr.push(entropyByte) | |
741 | } | |
742 | // Convert entropy array to mnemonic | |
743 | var phrase = mnemonic.toMnemonic(entropyArr); | |
744 | // Set the mnemonic in the UI | |
745 | DOM.phrase.val(phrase); | |
746 | } | |
747 | ||
748 | function hideEntropyError() { | |
749 | DOM.entropyError.addClass("hidden"); | |
750 | } | |
751 | ||
752 | function showEntropyError(msg) { | |
753 | DOM.entropyError.text(msg); | |
754 | DOM.entropyError.removeClass("hidden"); | |
755 | } | |
756 | ||
757 | var networks = [ | |
758 | { | |
759 | name: "Bitcoin", | |
760 | onSelect: function() { | |
761 | network = bitcoin.networks.bitcoin; | |
762 | DOM.bip44coin.val(0); | |
763 | }, | |
764 | }, | |
765 | { | |
766 | name: "Bitcoin Testnet", | |
767 | onSelect: function() { | |
768 | network = bitcoin.networks.testnet; | |
769 | DOM.bip44coin.val(1); | |
770 | }, | |
771 | }, | |
772 | { | |
773 | name: "Litecoin", | |
774 | onSelect: function() { | |
775 | network = bitcoin.networks.litecoin; | |
776 | DOM.bip44coin.val(2); | |
777 | }, | |
778 | }, | |
779 | { | |
780 | name: "Dogecoin", | |
781 | onSelect: function() { | |
782 | network = bitcoin.networks.dogecoin; | |
783 | DOM.bip44coin.val(3); | |
784 | }, | |
785 | }, | |
786 | { | |
787 | name: "ShadowCash", | |
788 | onSelect: function() { | |
789 | network = bitcoin.networks.shadow; | |
790 | DOM.bip44coin.val(35); | |
791 | }, | |
792 | }, | |
793 | { | |
794 | name: "ShadowCash Testnet", | |
795 | onSelect: function() { | |
796 | network = bitcoin.networks.shadowtn; | |
797 | DOM.bip44coin.val(1); | |
798 | }, | |
799 | }, | |
800 | { | |
801 | name: "Viacoin", | |
802 | onSelect: function() { | |
803 | network = bitcoin.networks.viacoin; | |
804 | DOM.bip44coin.val(14); | |
805 | }, | |
806 | }, | |
807 | { | |
808 | name: "Viacoin Testnet", | |
809 | onSelect: function() { | |
810 | network = bitcoin.networks.viacointestnet; | |
811 | DOM.bip44coin.val(1); | |
812 | }, | |
813 | }, | |
814 | { | |
815 | name: "Jumbucks", | |
816 | onSelect: function() { | |
817 | network = bitcoin.networks.jumbucks; | |
818 | DOM.bip44coin.val(26); | |
819 | }, | |
820 | }, | |
821 | { | |
822 | name: "CLAM", | |
823 | onSelect: function() { | |
824 | network = bitcoin.networks.clam; | |
825 | DOM.bip44coin.val(23); | |
826 | }, | |
827 | }, | |
828 | { | |
829 | name: "DASH", | |
830 | onSelect: function() { | |
831 | network = bitcoin.networks.dash; | |
832 | DOM.bip44coin.val(5); | |
833 | }, | |
834 | }, | |
835 | { | |
836 | name: "Namecoin", | |
837 | onSelect: function() { | |
838 | network = bitcoin.networks.namecoin; | |
839 | DOM.bip44coin.val(7); | |
840 | }, | |
841 | }, | |
842 | { | |
843 | name: "Peercoin", | |
844 | onSelect: function() { | |
845 | network = bitcoin.networks.peercoin; | |
846 | DOM.bip44coin.val(6); | |
847 | }, | |
848 | }, | |
849 | ] | |
850 | ||
851 | init(); | |
852 | ||
853 | })(); |