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1 | (function() { | |
2 | ||
3 | var mnemonic = new Mnemonic("english"); | |
4 | var seed = null | |
5 | var bip32RootKey = null; | |
6 | var bip32ExtendedKey = null; | |
7 | var network = bitcoin.networks.bitcoin; | |
8 | var addressRowTemplate = $("#address-row-template"); | |
9 | ||
10 | var showIndex = true; | |
11 | var showAddress = true; | |
12 | var showPrivKey = true; | |
13 | ||
14 | var phraseChangeTimeoutEvent = null; | |
15 | var rootKeyChangedTimeoutEvent = null; | |
16 | ||
17 | var DOM = {}; | |
18 | DOM.network = $(".network"); | |
19 | DOM.phraseNetwork = $("#network-phrase"); | |
20 | DOM.phrase = $(".phrase"); | |
21 | DOM.passphrase = $(".passphrase"); | |
22 | DOM.generate = $(".generate"); | |
23 | DOM.seed = $(".seed"); | |
24 | DOM.rootKey = $(".root-key"); | |
25 | DOM.extendedPrivKey = $(".extended-priv-key"); | |
26 | DOM.extendedPubKey = $(".extended-pub-key"); | |
27 | DOM.bip32tab = $("#bip32-tab"); | |
28 | DOM.bip44tab = $("#bip44-tab"); | |
29 | DOM.bip32panel = $("#bip32"); | |
30 | DOM.bip44panel = $("#bip44"); | |
31 | DOM.bip32path = $("#bip32-path"); | |
32 | DOM.bip44path = $("#bip44-path"); | |
33 | DOM.bip44purpose = $("#bip44 .purpose"); | |
34 | DOM.bip44coin = $("#bip44 .coin"); | |
35 | DOM.bip44account = $("#bip44 .account"); | |
36 | DOM.bip44change = $("#bip44 .change"); | |
37 | DOM.strength = $(".strength"); | |
38 | DOM.hardenedAddresses = $(".hardened-addresses"); | |
39 | DOM.addresses = $(".addresses"); | |
40 | DOM.rowsToAdd = $(".rows-to-add"); | |
41 | DOM.more = $(".more"); | |
42 | DOM.feedback = $(".feedback"); | |
43 | DOM.tab = $(".derivation-type a"); | |
44 | DOM.indexToggle = $(".index-toggle"); | |
45 | DOM.addressToggle = $(".address-toggle"); | |
46 | DOM.privateKeyToggle = $(".private-key-toggle"); | |
47 | ||
48 | function init() { | |
49 | // Events | |
50 | DOM.network.on("change", networkChanged); | |
51 | DOM.phrase.on("input", delayedPhraseChanged); | |
52 | DOM.passphrase.on("input", delayedPhraseChanged); | |
53 | DOM.generate.on("click", generateClicked); | |
54 | DOM.more.on("click", showMore); | |
55 | DOM.rootKey.on("input", delayedRootKeyChanged); | |
56 | DOM.bip32path.on("input", calcForDerivationPath); | |
57 | DOM.bip44purpose.on("input", calcForDerivationPath); | |
58 | DOM.bip44coin.on("input", calcForDerivationPath); | |
59 | DOM.bip44account.on("input", calcForDerivationPath); | |
60 | DOM.bip44change.on("input", calcForDerivationPath); | |
61 | DOM.tab.on("shown.bs.tab", calcForDerivationPath); | |
62 | DOM.hardenedAddresses.on("change", calcForDerivationPath); | |
63 | DOM.indexToggle.on("click", toggleIndexes); | |
64 | DOM.addressToggle.on("click", toggleAddresses); | |
65 | DOM.privateKeyToggle.on("click", togglePrivateKeys); | |
66 | disableForms(); | |
67 | hidePending(); | |
68 | hideValidationError(); | |
69 | populateNetworkSelect(); | |
70 | } | |
71 | ||
72 | // Event handlers | |
73 | ||
74 | function networkChanged(e) { | |
75 | var network = e.target.value; | |
76 | networks[network].onSelect(); | |
77 | displayBip32Info(); | |
78 | } | |
79 | ||
80 | function delayedPhraseChanged() { | |
81 | hideValidationError(); | |
82 | showPending(); | |
83 | if (phraseChangeTimeoutEvent != null) { | |
84 | clearTimeout(phraseChangeTimeoutEvent); | |
85 | } | |
86 | phraseChangeTimeoutEvent = setTimeout(phraseChanged, 400); | |
87 | } | |
88 | ||
89 | function phraseChanged() { | |
90 | showPending(); | |
91 | hideValidationError(); | |
92 | // Get the mnemonic phrase | |
93 | var phrase = DOM.phrase.val(); | |
94 | var errorText = findPhraseErrors(phrase); | |
95 | if (errorText) { | |
96 | showValidationError(errorText); | |
97 | return; | |
98 | } | |
99 | // Calculate and display | |
100 | var passphrase = DOM.passphrase.val(); | |
101 | calcBip32RootKeyFromSeed(phrase, passphrase); | |
102 | calcForDerivationPath(); | |
103 | hidePending(); | |
104 | } | |
105 | ||
106 | function delayedRootKeyChanged() { | |
107 | // Warn if there is an existing mnemonic or passphrase. | |
108 | if (DOM.phrase.val().length > 0 || DOM.passphrase.val().length > 0) { | |
109 | if (!confirm("This will clear existing mnemonic and passphrase")) { | |
110 | DOM.rootKey.val(bip32RootKey); | |
111 | return | |
112 | } | |
113 | } | |
114 | hideValidationError(); | |
115 | showPending(); | |
116 | // Clear existing mnemonic and passphrase | |
117 | DOM.phrase.val(""); | |
118 | DOM.passphrase.val(""); | |
119 | seed = null; | |
120 | if (rootKeyChangedTimeoutEvent != null) { | |
121 | clearTimeout(rootKeyChangedTimeoutEvent); | |
122 | } | |
123 | rootKeyChangedTimeoutEvent = setTimeout(rootKeyChanged, 400); | |
124 | } | |
125 | ||
126 | function rootKeyChanged() { | |
127 | showPending(); | |
128 | hideValidationError(); | |
129 | // Validate the root key TODO | |
130 | var rootKeyBase58 = DOM.rootKey.val(); | |
131 | var errorText = validateRootKey(rootKeyBase58); | |
132 | if (errorText) { | |
133 | showValidationError(errorText); | |
134 | return; | |
135 | } | |
136 | // Calculate and display | |
137 | calcBip32RootKeyFromBase58(rootKeyBase58); | |
138 | calcForDerivationPath(); | |
139 | hidePending(); | |
140 | } | |
141 | ||
142 | function calcForDerivationPath() { | |
143 | showPending(); | |
144 | hideValidationError(); | |
145 | // Get the derivation path | |
146 | var derivationPath = getDerivationPath(); | |
147 | var errorText = findDerivationPathErrors(derivationPath); | |
148 | if (errorText) { | |
149 | showValidationError(errorText); | |
150 | return; | |
151 | } | |
152 | calcBip32ExtendedKey(derivationPath); | |
153 | displayBip32Info(); | |
154 | hidePending(); | |
155 | } | |
156 | ||
157 | function generateClicked() { | |
158 | clearDisplay(); | |
159 | showPending(); | |
160 | setTimeout(function() { | |
161 | var phrase = generateRandomPhrase(); | |
162 | if (!phrase) { | |
163 | return; | |
164 | } | |
165 | phraseChanged(); | |
166 | }, 50); | |
167 | } | |
168 | ||
169 | function toggleIndexes() { | |
170 | showIndex = !showIndex; | |
171 | $("td.index span").toggleClass("invisible"); | |
172 | } | |
173 | ||
174 | function toggleAddresses() { | |
175 | showAddress = !showAddress; | |
176 | $("td.address span").toggleClass("invisible"); | |
177 | } | |
178 | ||
179 | function togglePrivateKeys() { | |
180 | showPrivKey = !showPrivKey; | |
181 | $("td.privkey span").toggleClass("invisible"); | |
182 | } | |
183 | ||
184 | // Private methods | |
185 | ||
186 | function generateRandomPhrase() { | |
187 | if (!hasStrongRandom()) { | |
188 | var errorText = "This browser does not support strong randomness"; | |
189 | showValidationError(errorText); | |
190 | return; | |
191 | } | |
192 | var numWords = parseInt(DOM.strength.val()); | |
193 | var strength = numWords / 3 * 32; | |
194 | var words = mnemonic.generate(strength); | |
195 | DOM.phrase.val(words); | |
196 | return words; | |
197 | } | |
198 | ||
199 | function calcBip32RootKeyFromSeed(phrase, passphrase) { | |
200 | seed = mnemonic.toSeed(phrase, passphrase); | |
201 | bip32RootKey = bitcoin.HDNode.fromSeedHex(seed, network); | |
202 | } | |
203 | ||
204 | function calcBip32RootKeyFromBase58(rootKeyBase58) { | |
205 | bip32RootKey = bitcoin.HDNode.fromBase58(rootKeyBase58); | |
206 | } | |
207 | ||
208 | function calcBip32ExtendedKey(path) { | |
209 | bip32ExtendedKey = bip32RootKey; | |
210 | // Derive the key from the path | |
211 | var pathBits = path.split("/"); | |
212 | for (var i=0; i<pathBits.length; i++) { | |
213 | var bit = pathBits[i]; | |
214 | var index = parseInt(bit); | |
215 | if (isNaN(index)) { | |
216 | continue; | |
217 | } | |
218 | var hardened = bit[bit.length-1] == "'"; | |
219 | if (hardened) { | |
220 | bip32ExtendedKey = bip32ExtendedKey.deriveHardened(index); | |
221 | } | |
222 | else { | |
223 | bip32ExtendedKey = bip32ExtendedKey.derive(index); | |
224 | } | |
225 | } | |
226 | } | |
227 | ||
228 | function showValidationError(errorText) { | |
229 | DOM.feedback | |
230 | .text(errorText) | |
231 | .show(); | |
232 | } | |
233 | ||
234 | function hideValidationError() { | |
235 | DOM.feedback | |
236 | .text("") | |
237 | .hide(); | |
238 | } | |
239 | ||
240 | function findPhraseErrors(phrase) { | |
241 | // TODO make this right | |
242 | // Preprocess the words | |
243 | phrase = mnemonic.normalizeString(phrase); | |
244 | var parts = phrase.split(" "); | |
245 | var proper = []; | |
246 | for (var i=0; i<parts.length; i++) { | |
247 | var part = parts[i]; | |
248 | if (part.length > 0) { | |
249 | // TODO check that lowercasing is always valid to do | |
250 | proper.push(part.toLowerCase()); | |
251 | } | |
252 | } | |
253 | var properPhrase = proper.join(' '); | |
254 | // Check each word | |
255 | for (var i=0; i<proper.length; i++) { | |
256 | var word = proper[i]; | |
257 | if (WORDLISTS["english"].indexOf(word) == -1) { | |
258 | console.log("Finding closest match to " + word); | |
259 | var nearestWord = findNearestWord(word); | |
260 | return word + " not in wordlist, did you mean " + nearestWord + "?"; | |
261 | } | |
262 | } | |
263 | // Check the words are valid | |
264 | var isValid = mnemonic.check(properPhrase); | |
265 | if (!isValid) { | |
266 | return "Invalid mnemonic"; | |
267 | } | |
268 | return false; | |
269 | } | |
270 | ||
271 | function validateRootKey(rootKeyBase58) { | |
272 | try { | |
273 | bitcoin.HDNode.fromBase58(rootKeyBase58); | |
274 | } | |
275 | catch (e) { | |
276 | return "Invalid root key"; | |
277 | } | |
278 | return ""; | |
279 | } | |
280 | ||
281 | function getDerivationPath() { | |
282 | if (DOM.bip44tab.hasClass("active")) { | |
283 | var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44); | |
284 | var coin = parseIntNoNaN(DOM.bip44coin.val(), 0); | |
285 | var account = parseIntNoNaN(DOM.bip44account.val(), 0); | |
286 | var change = parseIntNoNaN(DOM.bip44change.val(), 0); | |
287 | var path = "m/"; | |
288 | path += purpose + "'/"; | |
289 | path += coin + "'/"; | |
290 | path += account + "'/"; | |
291 | path += change; | |
292 | DOM.bip44path.val(path); | |
293 | var derivationPath = DOM.bip44path.val(); | |
294 | console.log("Using derivation path from BIP44 tab: " + derivationPath); | |
295 | return derivationPath; | |
296 | } | |
297 | else if (DOM.bip32tab.hasClass("active")) { | |
298 | var derivationPath = DOM.bip32path.val(); | |
299 | console.log("Using derivation path from BIP32 tab: " + derivationPath); | |
300 | return derivationPath; | |
301 | } | |
302 | else { | |
303 | console.log("Unknown derivation path"); | |
304 | } | |
305 | } | |
306 | ||
307 | function findDerivationPathErrors(path) { | |
308 | // TODO is not perfect but is better than nothing | |
309 | // Inspired by | |
310 | // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors | |
311 | // and | |
312 | // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys | |
313 | var maxDepth = 255; // TODO verify this!! | |
314 | var maxIndexValue = Math.pow(2, 31); // TODO verify this!! | |
315 | if (path[0] != "m") { | |
316 | return "First character must be 'm'"; | |
317 | } | |
318 | if (path.length > 1) { | |
319 | if (path[1] != "/") { | |
320 | return "Separator must be '/'"; | |
321 | } | |
322 | var indexes = path.split("/"); | |
323 | if (indexes.length > maxDepth) { | |
324 | return "Derivation depth is " + indexes.length + ", must be less than " + maxDepth; | |
325 | } | |
326 | for (var depth = 1; depth<indexes.length; depth++) { | |
327 | var index = indexes[depth]; | |
328 | var invalidChars = index.replace(/^[0-9]+'?$/g, "") | |
329 | if (invalidChars.length > 0) { | |
330 | return "Invalid characters " + invalidChars + " found at depth " + depth; | |
331 | } | |
332 | var indexValue = parseInt(index.replace("'", "")); | |
333 | if (isNaN(depth)) { | |
334 | return "Invalid number at depth " + depth; | |
335 | } | |
336 | if (indexValue > maxIndexValue) { | |
337 | return "Value of " + indexValue + " at depth " + depth + " must be less than " + maxIndexValue; | |
338 | } | |
339 | } | |
340 | } | |
341 | return false; | |
342 | } | |
343 | ||
344 | function displayBip32Info() { | |
345 | // Display the key | |
346 | DOM.seed.val(seed); | |
347 | var rootKey = bip32RootKey.toBase58(); | |
348 | DOM.rootKey.val(rootKey); | |
349 | var extendedPrivKey = bip32ExtendedKey.toBase58(); | |
350 | DOM.extendedPrivKey.val(extendedPrivKey); | |
351 | var extendedPubKey = bip32ExtendedKey.toBase58(false); | |
352 | DOM.extendedPubKey.val(extendedPubKey); | |
353 | // Display the addresses and privkeys | |
354 | clearAddressesList(); | |
355 | displayAddresses(0, 20); | |
356 | } | |
357 | ||
358 | function displayAddresses(start, total) { | |
359 | for (var i=0; i<total; i++) { | |
360 | var index = i + start; | |
361 | new TableRow(index); | |
362 | } | |
363 | } | |
364 | ||
365 | function TableRow(index) { | |
366 | ||
367 | var useHardenedAddresses = DOM.hardenedAddresses.prop("checked"); | |
368 | ||
369 | function init() { | |
370 | calculateValues(); | |
371 | } | |
372 | ||
373 | function calculateValues() { | |
374 | setTimeout(function() { | |
375 | var key = ""; | |
376 | if (useHardenedAddresses) { | |
377 | key = bip32ExtendedKey.deriveHardened(index); | |
378 | } | |
379 | else { | |
380 | key = bip32ExtendedKey.derive(index); | |
381 | } | |
382 | var address = key.getAddress().toString(); | |
383 | var privkey = key.privKey.toWIF(network); | |
384 | var indexText = getDerivationPath() + "/" + index; | |
385 | if (useHardenedAddresses) { | |
386 | indexText = indexText + "'"; | |
387 | } | |
388 | addAddressToList(indexText, address, privkey); | |
389 | }, 50) | |
390 | } | |
391 | ||
392 | init(); | |
393 | ||
394 | } | |
395 | ||
396 | function showMore() { | |
397 | var start = DOM.addresses.children().length; | |
398 | var rowsToAdd = parseInt(DOM.rowsToAdd.val()); | |
399 | if (isNaN(rowsToAdd)) { | |
400 | rowsToAdd = 20; | |
401 | DOM.rowsToAdd.val("20"); | |
402 | } | |
403 | if (rowsToAdd > 200) { | |
404 | var msg = "Generating " + rowsToAdd + " rows could take a while. "; | |
405 | msg += "Do you want to continue?"; | |
406 | if (!confirm(msg)) { | |
407 | return; | |
408 | } | |
409 | } | |
410 | displayAddresses(start, rowsToAdd); | |
411 | } | |
412 | ||
413 | function clearDisplay() { | |
414 | clearAddressesList(); | |
415 | clearKey(); | |
416 | hideValidationError(); | |
417 | } | |
418 | ||
419 | function clearAddressesList() { | |
420 | DOM.addresses.empty(); | |
421 | } | |
422 | ||
423 | function clearKey() { | |
424 | DOM.rootKey.val(""); | |
425 | DOM.extendedPrivKey.val(""); | |
426 | DOM.extendedPubKey.val(""); | |
427 | } | |
428 | ||
429 | function addAddressToList(indexText, address, privkey) { | |
430 | var row = $(addressRowTemplate.html()); | |
431 | // Elements | |
432 | var indexCell = row.find(".index span"); | |
433 | var addressCell = row.find(".address span"); | |
434 | var privkeyCell = row.find(".privkey span"); | |
435 | // Content | |
436 | indexCell.text(indexText); | |
437 | addressCell.text(address); | |
438 | privkeyCell.text(privkey); | |
439 | // Visibility | |
440 | if (!showIndex) { | |
441 | indexCell.addClass("invisible"); | |
442 | } | |
443 | if (!showAddress) { | |
444 | addressCell.addClass("invisible"); | |
445 | } | |
446 | if (!showPrivKey) { | |
447 | privkeyCell.addClass("invisible"); | |
448 | } | |
449 | DOM.addresses.append(row); | |
450 | } | |
451 | ||
452 | function hasStrongRandom() { | |
453 | return 'crypto' in window && window['crypto'] !== null; | |
454 | } | |
455 | ||
456 | function disableForms() { | |
457 | $("form").on("submit", function(e) { | |
458 | e.preventDefault(); | |
459 | }); | |
460 | } | |
461 | ||
462 | function parseIntNoNaN(val, defaultVal) { | |
463 | var v = parseInt(val); | |
464 | if (isNaN(v)) { | |
465 | return defaultVal; | |
466 | } | |
467 | return v; | |
468 | } | |
469 | ||
470 | function showPending() { | |
471 | DOM.feedback | |
472 | .text("Calculating...") | |
473 | .show(); | |
474 | } | |
475 | ||
476 | function findNearestWord(word) { | |
477 | var words = WORDLISTS["english"]; | |
478 | var minDistance = 99; | |
479 | var closestWord = words[0]; | |
480 | for (var i=0; i<words.length; i++) { | |
481 | var comparedTo = words[i]; | |
482 | var distance = Levenshtein.get(word, comparedTo); | |
483 | if (distance < minDistance) { | |
484 | closestWord = comparedTo; | |
485 | minDistance = distance; | |
486 | } | |
487 | } | |
488 | return closestWord; | |
489 | } | |
490 | ||
491 | function hidePending() { | |
492 | DOM.feedback | |
493 | .text("") | |
494 | .hide(); | |
495 | } | |
496 | ||
497 | function populateNetworkSelect() { | |
498 | for (var i=0; i<networks.length; i++) { | |
499 | var network = networks[i]; | |
500 | var option = $("<option>"); | |
501 | option.attr("value", i); | |
502 | option.text(network.name); | |
503 | DOM.phraseNetwork.append(option); | |
504 | } | |
505 | } | |
506 | ||
507 | var networks = [ | |
508 | { | |
509 | name: "Bitcoin", | |
510 | onSelect: function() { | |
511 | network = bitcoin.networks.bitcoin; | |
512 | DOM.bip44coin.val(0); | |
513 | }, | |
514 | }, | |
515 | { | |
516 | name: "Bitcoin Testnet", | |
517 | onSelect: function() { | |
518 | network = bitcoin.networks.testnet; | |
519 | DOM.bip44coin.val(1); | |
520 | }, | |
521 | }, | |
522 | { | |
523 | name: "Litecoin", | |
524 | onSelect: function() { | |
525 | network = bitcoin.networks.litecoin; | |
526 | DOM.bip44coin.val(2); | |
527 | }, | |
528 | }, | |
529 | { | |
530 | name: "Dogecoin", | |
531 | onSelect: function() { | |
532 | network = bitcoin.networks.dogecoin; | |
533 | DOM.bip44coin.val(3); | |
534 | }, | |
535 | }, | |
536 | { | |
537 | name: "ShadowCash", | |
538 | onSelect: function() { | |
539 | network = bitcoin.networks.shadow; | |
540 | DOM.bip44coin.val(35); | |
541 | }, | |
542 | }, | |
543 | { | |
544 | name: "ShadowCash Testnet", | |
545 | onSelect: function() { | |
546 | network = bitcoin.networks.shadowtn; | |
547 | DOM.bip44coin.val(1); | |
548 | }, | |
549 | }, | |
550 | { | |
551 | name: "Viacoin", | |
552 | onSelect: function() { | |
553 | network = bitcoin.networks.viacoin; | |
554 | DOM.bip44coin.val(14); | |
555 | }, | |
556 | }, | |
557 | { | |
558 | name: "Viacoin Testnet", | |
559 | onSelect: function() { | |
560 | network = bitcoin.networks.viacointestnet; | |
561 | DOM.bip44coin.val(1); | |
562 | }, | |
563 | }, | |
564 | { | |
565 | name: "Jumbucks", | |
566 | onSelect: function() { | |
567 | network = bitcoin.networks.jumbucks; | |
568 | DOM.bip44coin.val(26); | |
569 | }, | |
570 | }, | |
571 | { | |
572 | name: "CLAM", | |
573 | onSelect: function() { | |
574 | network = bitcoin.networks.clam; | |
575 | DOM.bip44coin.val(23); | |
576 | }, | |
577 | }, | |
578 | ] | |
579 | ||
580 | init(); | |
581 | ||
582 | })(); |