]>
Commit | Line | Data |
---|---|---|
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 | hidePending(); | |
113 | } | |
114 | } | |
115 | ||
116 | function delayedPhraseChanged() { | |
117 | hideValidationError(); | |
118 | showPending(); | |
119 | if (phraseChangeTimeoutEvent != null) { | |
120 | clearTimeout(phraseChangeTimeoutEvent); | |
121 | } | |
122 | phraseChangeTimeoutEvent = setTimeout(phraseChanged, 400); | |
123 | } | |
124 | ||
125 | function phraseChanged() { | |
126 | showPending(); | |
127 | hideValidationError(); | |
128 | setMnemonicLanguage(); | |
129 | // Get the mnemonic phrase | |
130 | var phrase = DOM.phrase.val(); | |
131 | var errorText = findPhraseErrors(phrase); | |
132 | if (errorText) { | |
133 | showValidationError(errorText); | |
134 | return; | |
135 | } | |
136 | // Calculate and display | |
137 | var passphrase = DOM.passphrase.val(); | |
138 | calcBip32RootKeyFromSeed(phrase, passphrase); | |
139 | calcForDerivationPath(); | |
140 | hidePending(); | |
141 | } | |
142 | ||
143 | function delayedEntropyChanged() { | |
144 | hideValidationError(); | |
145 | showPending(); | |
146 | if (entropyChangeTimeoutEvent != null) { | |
147 | clearTimeout(entropyChangeTimeoutEvent); | |
148 | } | |
149 | entropyChangeTimeoutEvent = setTimeout(entropyChanged, 400); | |
150 | } | |
151 | ||
152 | function entropyChanged() { | |
153 | // If blank entropy, clear mnemonic, addresses, errors | |
154 | if (DOM.entropy.val().trim().length == 0) { | |
155 | clearDisplay(); | |
156 | hideEntropyError(); | |
157 | DOM.phrase.val(""); | |
158 | showValidationError("Blank entropy"); | |
159 | return; | |
160 | } | |
161 | // Get the current phrase to detect changes | |
162 | var phrase = DOM.phrase.val(); | |
163 | // Set the phrase from the entropy | |
164 | setMnemonicFromEntropy(); | |
165 | // Recalc addresses if the phrase has changed | |
166 | var newPhrase = DOM.phrase.val(); | |
167 | if (newPhrase != phrase) { | |
168 | if (newPhrase.length == 0) { | |
169 | clearDisplay(); | |
170 | } | |
171 | else { | |
172 | phraseChanged(); | |
173 | } | |
174 | } | |
175 | else { | |
176 | hidePending(); | |
177 | } | |
178 | } | |
179 | ||
180 | function delayedRootKeyChanged() { | |
181 | // Warn if there is an existing mnemonic or passphrase. | |
182 | if (DOM.phrase.val().length > 0 || DOM.passphrase.val().length > 0) { | |
183 | if (!confirm("This will clear existing mnemonic and passphrase")) { | |
184 | DOM.rootKey.val(bip32RootKey); | |
185 | return | |
186 | } | |
187 | } | |
188 | hideValidationError(); | |
189 | showPending(); | |
190 | // Clear existing mnemonic and passphrase | |
191 | DOM.phrase.val(""); | |
192 | DOM.passphrase.val(""); | |
193 | seed = null; | |
194 | if (rootKeyChangedTimeoutEvent != null) { | |
195 | clearTimeout(rootKeyChangedTimeoutEvent); | |
196 | } | |
197 | rootKeyChangedTimeoutEvent = setTimeout(rootKeyChanged, 400); | |
198 | } | |
199 | ||
200 | function rootKeyChanged() { | |
201 | showPending(); | |
202 | hideValidationError(); | |
203 | // Validate the root key TODO | |
204 | var rootKeyBase58 = DOM.rootKey.val(); | |
205 | var errorText = validateRootKey(rootKeyBase58); | |
206 | if (errorText) { | |
207 | showValidationError(errorText); | |
208 | return; | |
209 | } | |
210 | // Calculate and display | |
211 | calcBip32RootKeyFromBase58(rootKeyBase58); | |
212 | calcForDerivationPath(); | |
213 | hidePending(); | |
214 | } | |
215 | ||
216 | function calcForDerivationPath() { | |
217 | showPending(); | |
218 | hideValidationError(); | |
219 | // Get the derivation path | |
220 | var derivationPath = getDerivationPath(); | |
221 | var errorText = findDerivationPathErrors(derivationPath); | |
222 | if (errorText) { | |
223 | showValidationError(errorText); | |
224 | return; | |
225 | } | |
226 | calcBip32ExtendedKey(derivationPath); | |
227 | displayBip32Info(); | |
228 | hidePending(); | |
229 | } | |
230 | ||
231 | function generateClicked() { | |
232 | if (isUsingOwnEntropy()) { | |
233 | return; | |
234 | } | |
235 | clearDisplay(); | |
236 | showPending(); | |
237 | setTimeout(function() { | |
238 | setMnemonicLanguage(); | |
239 | var phrase = generateRandomPhrase(); | |
240 | if (!phrase) { | |
241 | return; | |
242 | } | |
243 | phraseChanged(); | |
244 | }, 50); | |
245 | } | |
246 | ||
247 | function languageChanged() { | |
248 | setTimeout(function() { | |
249 | setMnemonicLanguage(); | |
250 | if (DOM.phrase.val().length > 0) { | |
251 | var newPhrase = convertPhraseToNewLanguage(); | |
252 | DOM.phrase.val(newPhrase); | |
253 | phraseChanged(); | |
254 | } | |
255 | else { | |
256 | DOM.generate.trigger("click"); | |
257 | } | |
258 | }, 50); | |
259 | } | |
260 | ||
261 | function toggleIndexes() { | |
262 | showIndex = !showIndex; | |
263 | $("td.index span").toggleClass("invisible"); | |
264 | } | |
265 | ||
266 | function toggleAddresses() { | |
267 | showAddress = !showAddress; | |
268 | $("td.address span").toggleClass("invisible"); | |
269 | } | |
270 | ||
271 | function togglePublicKeys() { | |
272 | showPubKey = !showPubKey; | |
273 | $("td.pubkey span").toggleClass("invisible"); | |
274 | } | |
275 | ||
276 | function togglePrivateKeys() { | |
277 | showPrivKey = !showPrivKey; | |
278 | $("td.privkey span").toggleClass("invisible"); | |
279 | } | |
280 | ||
281 | // Private methods | |
282 | ||
283 | function generateRandomPhrase() { | |
284 | if (!hasStrongRandom()) { | |
285 | var errorText = "This browser does not support strong randomness"; | |
286 | showValidationError(errorText); | |
287 | return; | |
288 | } | |
289 | var numWords = parseInt(DOM.strength.val()); | |
290 | var strength = numWords / 3 * 32; | |
291 | var words = mnemonic.generate(strength); | |
292 | DOM.phrase.val(words); | |
293 | return words; | |
294 | } | |
295 | ||
296 | function calcBip32RootKeyFromSeed(phrase, passphrase) { | |
297 | seed = mnemonic.toSeed(phrase, passphrase); | |
298 | bip32RootKey = bitcoin.HDNode.fromSeedHex(seed, network); | |
299 | } | |
300 | ||
301 | function calcBip32RootKeyFromBase58(rootKeyBase58) { | |
302 | bip32RootKey = bitcoin.HDNode.fromBase58(rootKeyBase58, network); | |
303 | } | |
304 | ||
305 | function calcBip32ExtendedKey(path) { | |
306 | bip32ExtendedKey = bip32RootKey; | |
307 | // Derive the key from the path | |
308 | var pathBits = path.split("/"); | |
309 | for (var i=0; i<pathBits.length; i++) { | |
310 | var bit = pathBits[i]; | |
311 | var index = parseInt(bit); | |
312 | if (isNaN(index)) { | |
313 | continue; | |
314 | } | |
315 | var hardened = bit[bit.length-1] == "'"; | |
316 | if (hardened) { | |
317 | bip32ExtendedKey = bip32ExtendedKey.deriveHardened(index); | |
318 | } | |
319 | else { | |
320 | bip32ExtendedKey = bip32ExtendedKey.derive(index); | |
321 | } | |
322 | } | |
323 | } | |
324 | ||
325 | function showValidationError(errorText) { | |
326 | DOM.feedback | |
327 | .text(errorText) | |
328 | .show(); | |
329 | } | |
330 | ||
331 | function hideValidationError() { | |
332 | DOM.feedback | |
333 | .text("") | |
334 | .hide(); | |
335 | } | |
336 | ||
337 | function findPhraseErrors(phrase) { | |
338 | // Preprocess the words | |
339 | phrase = mnemonic.normalizeString(phrase); | |
340 | var words = phraseToWordArray(phrase); | |
341 | // Detect blank phrase | |
342 | if (words.length == 0) { | |
343 | return "Blank mnemonic"; | |
344 | } | |
345 | // Check each word | |
346 | for (var i=0; i<words.length; i++) { | |
347 | var word = words[i]; | |
348 | var language = getLanguage(); | |
349 | if (WORDLISTS[language].indexOf(word) == -1) { | |
350 | console.log("Finding closest match to " + word); | |
351 | var nearestWord = findNearestWord(word); | |
352 | return word + " not in wordlist, did you mean " + nearestWord + "?"; | |
353 | } | |
354 | } | |
355 | // Check the words are valid | |
356 | var properPhrase = wordArrayToPhrase(words); | |
357 | var isValid = mnemonic.check(properPhrase); | |
358 | if (!isValid) { | |
359 | return "Invalid mnemonic"; | |
360 | } | |
361 | return false; | |
362 | } | |
363 | ||
364 | function validateRootKey(rootKeyBase58) { | |
365 | try { | |
366 | bitcoin.HDNode.fromBase58(rootKeyBase58); | |
367 | } | |
368 | catch (e) { | |
369 | return "Invalid root key"; | |
370 | } | |
371 | return ""; | |
372 | } | |
373 | ||
374 | function getDerivationPath() { | |
375 | if (DOM.bip44tab.hasClass("active")) { | |
376 | var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44); | |
377 | var coin = parseIntNoNaN(DOM.bip44coin.val(), 0); | |
378 | var account = parseIntNoNaN(DOM.bip44account.val(), 0); | |
379 | var change = parseIntNoNaN(DOM.bip44change.val(), 0); | |
380 | var path = "m/"; | |
381 | path += purpose + "'/"; | |
382 | path += coin + "'/"; | |
383 | path += account + "'/"; | |
384 | path += change; | |
385 | DOM.bip44path.val(path); | |
386 | var derivationPath = DOM.bip44path.val(); | |
387 | console.log("Using derivation path from BIP44 tab: " + derivationPath); | |
388 | return derivationPath; | |
389 | } | |
390 | else if (DOM.bip32tab.hasClass("active")) { | |
391 | var derivationPath = DOM.bip32path.val(); | |
392 | console.log("Using derivation path from BIP32 tab: " + derivationPath); | |
393 | return derivationPath; | |
394 | } | |
395 | else { | |
396 | console.log("Unknown derivation path"); | |
397 | } | |
398 | } | |
399 | ||
400 | function findDerivationPathErrors(path) { | |
401 | // TODO is not perfect but is better than nothing | |
402 | // Inspired by | |
403 | // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors | |
404 | // and | |
405 | // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys | |
406 | var maxDepth = 255; // TODO verify this!! | |
407 | var maxIndexValue = Math.pow(2, 31); // TODO verify this!! | |
408 | if (path[0] != "m") { | |
409 | return "First character must be 'm'"; | |
410 | } | |
411 | if (path.length > 1) { | |
412 | if (path[1] != "/") { | |
413 | return "Separator must be '/'"; | |
414 | } | |
415 | var indexes = path.split("/"); | |
416 | if (indexes.length > maxDepth) { | |
417 | return "Derivation depth is " + indexes.length + ", must be less than " + maxDepth; | |
418 | } | |
419 | for (var depth = 1; depth<indexes.length; depth++) { | |
420 | var index = indexes[depth]; | |
421 | var invalidChars = index.replace(/^[0-9]+'?$/g, "") | |
422 | if (invalidChars.length > 0) { | |
423 | return "Invalid characters " + invalidChars + " found at depth " + depth; | |
424 | } | |
425 | var indexValue = parseInt(index.replace("'", "")); | |
426 | if (isNaN(depth)) { | |
427 | return "Invalid number at depth " + depth; | |
428 | } | |
429 | if (indexValue > maxIndexValue) { | |
430 | return "Value of " + indexValue + " at depth " + depth + " must be less than " + maxIndexValue; | |
431 | } | |
432 | } | |
433 | } | |
434 | return false; | |
435 | } | |
436 | ||
437 | function displayBip32Info() { | |
438 | // Display the key | |
439 | DOM.seed.val(seed); | |
440 | var rootKey = bip32RootKey.toBase58(); | |
441 | DOM.rootKey.val(rootKey); | |
442 | var extendedPrivKey = bip32ExtendedKey.toBase58(); | |
443 | DOM.extendedPrivKey.val(extendedPrivKey); | |
444 | var extendedPubKey = bip32ExtendedKey.toBase58(false); | |
445 | DOM.extendedPubKey.val(extendedPubKey); | |
446 | // Display the addresses and privkeys | |
447 | clearAddressesList(); | |
448 | displayAddresses(0, 20); | |
449 | } | |
450 | ||
451 | function displayAddresses(start, total) { | |
452 | for (var i=0; i<total; i++) { | |
453 | var index = i + start; | |
454 | new TableRow(index); | |
455 | } | |
456 | } | |
457 | ||
458 | function TableRow(index) { | |
459 | ||
460 | var useHardenedAddresses = DOM.hardenedAddresses.prop("checked"); | |
461 | ||
462 | function init() { | |
463 | calculateValues(); | |
464 | } | |
465 | ||
466 | function calculateValues() { | |
467 | setTimeout(function() { | |
468 | var key = ""; | |
469 | if (useHardenedAddresses) { | |
470 | key = bip32ExtendedKey.deriveHardened(index); | |
471 | } | |
472 | else { | |
473 | key = bip32ExtendedKey.derive(index); | |
474 | } | |
475 | var address = key.getAddress().toString(); | |
476 | var privkey = key.privKey.toWIF(network); | |
477 | var pubkey = key.pubKey.toHex(); | |
478 | var indexText = getDerivationPath() + "/" + index; | |
479 | if (useHardenedAddresses) { | |
480 | indexText = indexText + "'"; | |
481 | } | |
482 | addAddressToList(indexText, address, pubkey, privkey); | |
483 | }, 50) | |
484 | } | |
485 | ||
486 | init(); | |
487 | ||
488 | } | |
489 | ||
490 | function showMore() { | |
491 | var start = DOM.addresses.children().length; | |
492 | var rowsToAdd = parseInt(DOM.rowsToAdd.val()); | |
493 | if (isNaN(rowsToAdd)) { | |
494 | rowsToAdd = 20; | |
495 | DOM.rowsToAdd.val("20"); | |
496 | } | |
497 | if (rowsToAdd > 200) { | |
498 | var msg = "Generating " + rowsToAdd + " rows could take a while. "; | |
499 | msg += "Do you want to continue?"; | |
500 | if (!confirm(msg)) { | |
501 | return; | |
502 | } | |
503 | } | |
504 | displayAddresses(start, rowsToAdd); | |
505 | } | |
506 | ||
507 | function clearDisplay() { | |
508 | clearAddressesList(); | |
509 | clearKey(); | |
510 | hideValidationError(); | |
511 | } | |
512 | ||
513 | function clearAddressesList() { | |
514 | DOM.addresses.empty(); | |
515 | } | |
516 | ||
517 | function clearKey() { | |
518 | DOM.rootKey.val(""); | |
519 | DOM.extendedPrivKey.val(""); | |
520 | DOM.extendedPubKey.val(""); | |
521 | } | |
522 | ||
523 | function addAddressToList(indexText, address, pubkey, privkey) { | |
524 | var row = $(addressRowTemplate.html()); | |
525 | // Elements | |
526 | var indexCell = row.find(".index span"); | |
527 | var addressCell = row.find(".address span"); | |
528 | var pubkeyCell = row.find(".pubkey span"); | |
529 | var privkeyCell = row.find(".privkey span"); | |
530 | // Content | |
531 | indexCell.text(indexText); | |
532 | addressCell.text(address); | |
533 | pubkeyCell.text(pubkey); | |
534 | privkeyCell.text(privkey); | |
535 | // Visibility | |
536 | if (!showIndex) { | |
537 | indexCell.addClass("invisible"); | |
538 | } | |
539 | if (!showAddress) { | |
540 | addressCell.addClass("invisible"); | |
541 | } | |
542 | if (!showPubKey) { | |
543 | pubkeyCell.addClass("invisible"); | |
544 | } | |
545 | if (!showPrivKey) { | |
546 | privkeyCell.addClass("invisible"); | |
547 | } | |
548 | DOM.addresses.append(row); | |
549 | } | |
550 | ||
551 | function hasStrongRandom() { | |
552 | return 'crypto' in window && window['crypto'] !== null; | |
553 | } | |
554 | ||
555 | function disableForms() { | |
556 | $("form").on("submit", function(e) { | |
557 | e.preventDefault(); | |
558 | }); | |
559 | } | |
560 | ||
561 | function parseIntNoNaN(val, defaultVal) { | |
562 | var v = parseInt(val); | |
563 | if (isNaN(v)) { | |
564 | return defaultVal; | |
565 | } | |
566 | return v; | |
567 | } | |
568 | ||
569 | function showPending() { | |
570 | DOM.feedback | |
571 | .text("Calculating...") | |
572 | .show(); | |
573 | } | |
574 | ||
575 | function findNearestWord(word) { | |
576 | var language = getLanguage(); | |
577 | var words = WORDLISTS[language]; | |
578 | var minDistance = 99; | |
579 | var closestWord = words[0]; | |
580 | for (var i=0; i<words.length; i++) { | |
581 | var comparedTo = words[i]; | |
582 | var distance = Levenshtein.get(word, comparedTo); | |
583 | if (distance < minDistance) { | |
584 | closestWord = comparedTo; | |
585 | minDistance = distance; | |
586 | } | |
587 | } | |
588 | return closestWord; | |
589 | } | |
590 | ||
591 | function hidePending() { | |
592 | DOM.feedback | |
593 | .text("") | |
594 | .hide(); | |
595 | } | |
596 | ||
597 | function populateNetworkSelect() { | |
598 | for (var i=0; i<networks.length; i++) { | |
599 | var network = networks[i]; | |
600 | var option = $("<option>"); | |
601 | option.attr("value", i); | |
602 | option.text(network.name); | |
603 | DOM.phraseNetwork.append(option); | |
604 | } | |
605 | } | |
606 | ||
607 | function getLanguage() { | |
608 | var defaultLanguage = "english"; | |
609 | // Try to get from existing phrase | |
610 | var language = getLanguageFromPhrase(); | |
611 | // Try to get from url if not from phrase | |
612 | if (language.length == 0) { | |
613 | language = getLanguageFromUrl(); | |
614 | } | |
615 | // Default to English if no other option | |
616 | if (language.length == 0) { | |
617 | language = defaultLanguage; | |
618 | } | |
619 | return language; | |
620 | } | |
621 | ||
622 | function getLanguageFromPhrase(phrase) { | |
623 | // Check if how many words from existing phrase match a language. | |
624 | var language = ""; | |
625 | if (!phrase) { | |
626 | phrase = DOM.phrase.val(); | |
627 | } | |
628 | if (phrase.length > 0) { | |
629 | var words = phraseToWordArray(phrase); | |
630 | var languageMatches = {}; | |
631 | for (l in WORDLISTS) { | |
632 | // Track how many words match in this language | |
633 | languageMatches[l] = 0; | |
634 | for (var i=0; i<words.length; i++) { | |
635 | var wordInLanguage = WORDLISTS[l].indexOf(words[i]) > -1; | |
636 | if (wordInLanguage) { | |
637 | languageMatches[l]++; | |
638 | } | |
639 | } | |
640 | // Find languages with most word matches. | |
641 | // This is made difficult due to commonalities between Chinese | |
642 | // simplified vs traditional. | |
643 | var mostMatches = 0; | |
644 | var mostMatchedLanguages = []; | |
645 | for (var l in languageMatches) { | |
646 | var numMatches = languageMatches[l]; | |
647 | if (numMatches > mostMatches) { | |
648 | mostMatches = numMatches; | |
649 | mostMatchedLanguages = [l]; | |
650 | } | |
651 | else if (numMatches == mostMatches) { | |
652 | mostMatchedLanguages.push(l); | |
653 | } | |
654 | } | |
655 | } | |
656 | if (mostMatchedLanguages.length > 0) { | |
657 | // Use first language and warn if multiple detected | |
658 | language = mostMatchedLanguages[0]; | |
659 | if (mostMatchedLanguages.length > 1) { | |
660 | console.warn("Multiple possible languages"); | |
661 | console.warn(mostMatchedLanguages); | |
662 | } | |
663 | } | |
664 | } | |
665 | return language; | |
666 | } | |
667 | ||
668 | function getLanguageFromUrl() { | |
669 | for (var language in WORDLISTS) { | |
670 | if (window.location.hash.indexOf(language) > -1) { | |
671 | return language; | |
672 | } | |
673 | } | |
674 | return ""; | |
675 | } | |
676 | ||
677 | function setMnemonicLanguage() { | |
678 | var language = getLanguage(); | |
679 | // Load the bip39 mnemonic generator for this language if required | |
680 | if (!(language in mnemonics)) { | |
681 | mnemonics[language] = new Mnemonic(language); | |
682 | } | |
683 | mnemonic = mnemonics[language]; | |
684 | } | |
685 | ||
686 | function convertPhraseToNewLanguage() { | |
687 | var oldLanguage = getLanguageFromPhrase(); | |
688 | var newLanguage = getLanguageFromUrl(); | |
689 | var oldPhrase = DOM.phrase.val(); | |
690 | var oldWords = phraseToWordArray(oldPhrase); | |
691 | var newWords = []; | |
692 | for (var i=0; i<oldWords.length; i++) { | |
693 | var oldWord = oldWords[i]; | |
694 | var index = WORDLISTS[oldLanguage].indexOf(oldWord); | |
695 | var newWord = WORDLISTS[newLanguage][index]; | |
696 | newWords.push(newWord); | |
697 | } | |
698 | newPhrase = wordArrayToPhrase(newWords); | |
699 | return newPhrase; | |
700 | } | |
701 | ||
702 | // TODO look at jsbip39 - mnemonic.splitWords | |
703 | function phraseToWordArray(phrase) { | |
704 | var words = phrase.split(/\s/g); | |
705 | var noBlanks = []; | |
706 | for (var i=0; i<words.length; i++) { | |
707 | var word = words[i]; | |
708 | if (word.length > 0) { | |
709 | noBlanks.push(word); | |
710 | } | |
711 | } | |
712 | return noBlanks; | |
713 | } | |
714 | ||
715 | // TODO look at jsbip39 - mnemonic.joinWords | |
716 | function wordArrayToPhrase(words) { | |
717 | var phrase = words.join(" "); | |
718 | var language = getLanguageFromPhrase(phrase); | |
719 | if (language == "japanese") { | |
720 | phrase = words.join("\u3000"); | |
721 | } | |
722 | return phrase; | |
723 | } | |
724 | ||
725 | function isUsingOwnEntropy() { | |
726 | return DOM.useEntropy.prop("checked"); | |
727 | } | |
728 | ||
729 | function setMnemonicFromEntropy() { | |
730 | hideEntropyError(); | |
731 | // Get entropy value | |
732 | var entropyStr = DOM.entropy.val(); | |
733 | // Work out minimum base for entropy | |
734 | var entropy = Entropy.fromString(entropyStr); | |
735 | if (entropy.binaryStr.length == 0) { | |
736 | return; | |
737 | } | |
738 | // Show entropy details | |
739 | var extraBits = 32 - (entropy.binaryStr.length % 32); | |
740 | var extraChars = Math.ceil(extraBits * Math.log(2) / Math.log(entropy.base.asInt)); | |
741 | var words = Math.floor(entropy.binaryStr.length / 32) * 3; | |
742 | var strength = "an extremely weak"; | |
743 | if (words >= 3) { | |
744 | strength = "a very weak"; | |
745 | } | |
746 | if (words >= 6) { | |
747 | strength = "a weak"; | |
748 | } | |
749 | if (words >= 9) { | |
750 | strength = "a strong"; | |
751 | } | |
752 | if (words >= 12) { | |
753 | strength = "a very strong"; | |
754 | } | |
755 | if (words >= 15) { | |
756 | strength = "an extremely strong"; | |
757 | } | |
758 | if (words >= 18) { | |
759 | strength = "an even stronger" | |
760 | } | |
761 | var msg = "Have " + entropy.binaryStr.length + " bits of entropy, " + extraChars + " more " + entropy.base.str + " chars required to generate " + strength + " mnemonic: " + entropy.cleanStr; | |
762 | showEntropyError(msg); | |
763 | // Discard trailing entropy | |
764 | var bitsToUse = Math.floor(entropy.binaryStr.length / 32) * 32; | |
765 | var binaryStr = entropy.binaryStr.substring(0, bitsToUse); | |
766 | // Convert entropy string to numeric array | |
767 | var entropyArr = []; | |
768 | for (var i=0; i<binaryStr.length / 8; i++) { | |
769 | var byteAsBits = binaryStr.substring(i*8, i*8+8); | |
770 | var entropyByte = parseInt(byteAsBits, 2); | |
771 | entropyArr.push(entropyByte) | |
772 | } | |
773 | // Convert entropy array to mnemonic | |
774 | var phrase = mnemonic.toMnemonic(entropyArr); | |
775 | // Set the mnemonic in the UI | |
776 | DOM.phrase.val(phrase); | |
777 | } | |
778 | ||
779 | function hideEntropyError() { | |
780 | DOM.entropyError.addClass("hidden"); | |
781 | } | |
782 | ||
783 | function showEntropyError(msg) { | |
784 | DOM.entropyError.text(msg); | |
785 | DOM.entropyError.removeClass("hidden"); | |
786 | } | |
787 | ||
788 | var networks = [ | |
789 | { | |
790 | name: "Bitcoin", | |
791 | onSelect: function() { | |
792 | network = bitcoin.networks.bitcoin; | |
793 | DOM.bip44coin.val(0); | |
794 | }, | |
795 | }, | |
796 | { | |
797 | name: "Bitcoin Testnet", | |
798 | onSelect: function() { | |
799 | network = bitcoin.networks.testnet; | |
800 | DOM.bip44coin.val(1); | |
801 | }, | |
802 | }, | |
803 | { | |
804 | name: "Litecoin", | |
805 | onSelect: function() { | |
806 | network = bitcoin.networks.litecoin; | |
807 | DOM.bip44coin.val(2); | |
808 | }, | |
809 | }, | |
810 | { | |
811 | name: "Dogecoin", | |
812 | onSelect: function() { | |
813 | network = bitcoin.networks.dogecoin; | |
814 | DOM.bip44coin.val(3); | |
815 | }, | |
816 | }, | |
817 | { | |
818 | name: "ShadowCash", | |
819 | onSelect: function() { | |
820 | network = bitcoin.networks.shadow; | |
821 | DOM.bip44coin.val(35); | |
822 | }, | |
823 | }, | |
824 | { | |
825 | name: "ShadowCash Testnet", | |
826 | onSelect: function() { | |
827 | network = bitcoin.networks.shadowtn; | |
828 | DOM.bip44coin.val(1); | |
829 | }, | |
830 | }, | |
831 | { | |
832 | name: "Viacoin", | |
833 | onSelect: function() { | |
834 | network = bitcoin.networks.viacoin; | |
835 | DOM.bip44coin.val(14); | |
836 | }, | |
837 | }, | |
838 | { | |
839 | name: "Viacoin Testnet", | |
840 | onSelect: function() { | |
841 | network = bitcoin.networks.viacointestnet; | |
842 | DOM.bip44coin.val(1); | |
843 | }, | |
844 | }, | |
845 | { | |
846 | name: "Jumbucks", | |
847 | onSelect: function() { | |
848 | network = bitcoin.networks.jumbucks; | |
849 | DOM.bip44coin.val(26); | |
850 | }, | |
851 | }, | |
852 | { | |
853 | name: "CLAM", | |
854 | onSelect: function() { | |
855 | network = bitcoin.networks.clam; | |
856 | DOM.bip44coin.val(23); | |
857 | }, | |
858 | }, | |
859 | { | |
860 | name: "DASH", | |
861 | onSelect: function() { | |
862 | network = bitcoin.networks.dash; | |
863 | DOM.bip44coin.val(5); | |
864 | }, | |
865 | }, | |
866 | { | |
867 | name: "Namecoin", | |
868 | onSelect: function() { | |
869 | network = bitcoin.networks.namecoin; | |
870 | DOM.bip44coin.val(7); | |
871 | }, | |
872 | }, | |
873 | { | |
874 | name: "Peercoin", | |
875 | onSelect: function() { | |
876 | network = bitcoin.networks.peercoin; | |
877 | DOM.bip44coin.val(6); | |
878 | }, | |
879 | }, | |
880 | ] | |
881 | ||
882 | init(); | |
883 | ||
884 | })(); |