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1 | (function() { | |
2 | ||
3 | var mnemonic = new Mnemonic("english"); | |
4 | var bip32RootKey = null; | |
5 | var bip32ExtendedKey = null; | |
6 | var network = Bitcoin.networks.bitcoin; | |
7 | var addressRowTemplate = $("#address-row-template"); | |
8 | ||
9 | var showIndex = true; | |
10 | var showAddress = true; | |
11 | var showPrivKey = true; | |
12 | ||
13 | var phraseChangeTimeoutEvent = null; | |
14 | ||
15 | var DOM = {}; | |
16 | DOM.network = $(".network"); | |
17 | DOM.phraseNetwork = $("#network-phrase"); | |
18 | DOM.phrase = $(".phrase"); | |
19 | DOM.passphrase = $(".passphrase"); | |
20 | DOM.generate = $(".generate"); | |
21 | DOM.rootKey = $(".root-key"); | |
22 | DOM.extendedPrivKey = $(".extended-priv-key"); | |
23 | DOM.extendedPubKey = $(".extended-pub-key"); | |
24 | DOM.bip32tab = $("#bip32-tab"); | |
25 | DOM.bip44tab = $("#bip44-tab"); | |
26 | DOM.bip32panel = $("#bip32"); | |
27 | DOM.bip44panel = $("#bip44"); | |
28 | DOM.bip32path = $("#bip32-path"); | |
29 | DOM.bip44path = $("#bip44-path"); | |
30 | DOM.bip44purpose = $("#bip44 .purpose"); | |
31 | DOM.bip44coin = $("#bip44 .coin"); | |
32 | DOM.bip44account = $("#bip44 .account"); | |
33 | DOM.bip44change = $("#bip44 .change"); | |
34 | DOM.strength = $(".strength"); | |
35 | DOM.addresses = $(".addresses"); | |
36 | DOM.rowsToAdd = $(".rows-to-add"); | |
37 | DOM.more = $(".more"); | |
38 | DOM.feedback = $(".feedback"); | |
39 | DOM.tab = $(".derivation-type a"); | |
40 | DOM.indexToggle = $(".index-toggle"); | |
41 | DOM.addressToggle = $(".address-toggle"); | |
42 | DOM.privateKeyToggle = $(".private-key-toggle"); | |
43 | DOM.myceliumPath = $("#mycelium-path"); | |
44 | ||
45 | var derivationPath = $(".tab-pane.active .path").val(); | |
46 | ||
47 | function init() { | |
48 | // Events | |
49 | DOM.network.on("change", networkChanged); | |
50 | DOM.phrase.on("input", delayedPhraseChanged); | |
51 | DOM.passphrase.on("input", delayedPhraseChanged); | |
52 | DOM.generate.on("click", generateClicked); | |
53 | DOM.more.on("click", showMore); | |
54 | DOM.bip32path.on("input", bip32Changed); | |
55 | DOM.bip44purpose.on("input", bip44Changed); | |
56 | DOM.bip44coin.on("input", bip44Changed); | |
57 | DOM.bip44account.on("input", bip44Changed); | |
58 | DOM.bip44change.on("input", bip44Changed); | |
59 | DOM.tab.on("click", tabClicked); | |
60 | DOM.indexToggle.on("click", toggleIndexes); | |
61 | DOM.addressToggle.on("click", toggleAddresses); | |
62 | DOM.privateKeyToggle.on("click", togglePrivateKeys); | |
63 | disableForms(); | |
64 | hidePending(); | |
65 | hideValidationError(); | |
66 | } | |
67 | ||
68 | // Event handlers | |
69 | ||
70 | function networkChanged(e) { | |
71 | var n = e.target.value; | |
72 | if (n == "bitcoin") { | |
73 | network = Bitcoin.networks.bitcoin; | |
74 | DOM.bip44coin.val(0); | |
75 | DOM.myceliumPath.val("m/44'/0'/0'/0"); | |
76 | } | |
77 | else if (n == "bitcoin-testnet") { | |
78 | network = Bitcoin.networks.testnet; | |
79 | DOM.bip44coin.val(1); | |
80 | DOM.myceliumPath.val("m/44'/1'/0'/0"); | |
81 | } | |
82 | else if (n == "litecoin") { | |
83 | network = Bitcoin.networks.litecoin; | |
84 | DOM.bip44coin.val(2); | |
85 | } | |
86 | else if (n == "dogecoin") { | |
87 | network = Bitcoin.networks.dogecoin; | |
88 | DOM.bip44coin.val(3); | |
89 | } | |
90 | setBip44DerivationPath(); | |
91 | delayedPhraseChanged(); | |
92 | } | |
93 | ||
94 | function delayedPhraseChanged() { | |
95 | hideValidationError(); | |
96 | showPending(); | |
97 | if (phraseChangeTimeoutEvent != null) { | |
98 | clearTimeout(phraseChangeTimeoutEvent); | |
99 | } | |
100 | phraseChangeTimeoutEvent = setTimeout(phraseChanged, 400); | |
101 | } | |
102 | ||
103 | function phraseChanged() { | |
104 | showPending(); | |
105 | hideValidationError(); | |
106 | // Get the mnemonic phrase | |
107 | var phrase = DOM.phrase.val(); | |
108 | var passphrase = DOM.passphrase.val(); | |
109 | var errorText = findPhraseErrors(phrase); | |
110 | if (errorText) { | |
111 | showValidationError(errorText); | |
112 | return; | |
113 | } | |
114 | // Get the derivation path | |
115 | var errorText = findDerivationPathErrors(); | |
116 | if (errorText) { | |
117 | showValidationError(errorText); | |
118 | return; | |
119 | } | |
120 | // Calculate and display | |
121 | calcBip32Seed(phrase, passphrase, derivationPath); | |
122 | displayBip32Info(); | |
123 | hidePending(); | |
124 | } | |
125 | ||
126 | function generateClicked() { | |
127 | clearDisplay(); | |
128 | showPending(); | |
129 | setTimeout(function() { | |
130 | var phrase = generateRandomPhrase(); | |
131 | if (!phrase) { | |
132 | return; | |
133 | } | |
134 | phraseChanged(); | |
135 | }, 50); | |
136 | } | |
137 | ||
138 | function tabClicked(e) { | |
139 | var activePath = $(e.target.getAttribute("href") + " .path"); | |
140 | derivationPath = activePath.val(); | |
141 | derivationChanged(); | |
142 | } | |
143 | ||
144 | function derivationChanged() { | |
145 | delayedPhraseChanged(); | |
146 | } | |
147 | ||
148 | function bip32Changed() { | |
149 | derivationPath = DOM.bip32path.val(); | |
150 | derivationChanged(); | |
151 | } | |
152 | ||
153 | function bip44Changed() { | |
154 | setBip44DerivationPath(); | |
155 | derivationPath = DOM.bip44path.val(); | |
156 | derivationChanged(); | |
157 | } | |
158 | ||
159 | function toggleIndexes() { | |
160 | showIndex = !showIndex; | |
161 | $("td.index span").toggleClass("invisible"); | |
162 | } | |
163 | ||
164 | function toggleAddresses() { | |
165 | showAddress = !showAddress; | |
166 | $("td.address span").toggleClass("invisible"); | |
167 | } | |
168 | ||
169 | function togglePrivateKeys() { | |
170 | showPrivKey = !showPrivKey; | |
171 | $("td.privkey span").toggleClass("invisible"); | |
172 | } | |
173 | ||
174 | // Private methods | |
175 | ||
176 | function generateRandomPhrase() { | |
177 | if (!hasStrongRandom()) { | |
178 | var errorText = "This browser does not support strong randomness"; | |
179 | showValidationError(errorText); | |
180 | return; | |
181 | } | |
182 | var numWords = parseInt(DOM.strength.val()); | |
183 | // Check strength is an integer | |
184 | if (isNaN(numWords)) { | |
185 | DOM.strength.val("12"); | |
186 | numWords = 12; | |
187 | } | |
188 | // Check strength is a multiple of 32, if not round it down | |
189 | if (numWords % 3 != 0) { | |
190 | numWords = Math.floor(numWords / 3) * 3; | |
191 | DOM.strength.val(numWords); | |
192 | } | |
193 | // Check strength is at least 32 | |
194 | if (numWords == 0) { | |
195 | numWords = 3; | |
196 | DOM.strength.val(numWords); | |
197 | } | |
198 | var strength = numWords / 3 * 32; | |
199 | var words = mnemonic.generate(strength); | |
200 | DOM.phrase.val(words); | |
201 | return words; | |
202 | } | |
203 | ||
204 | function calcBip32Seed(phrase, passphrase, path) { | |
205 | var seed = mnemonic.toSeed(phrase, passphrase); | |
206 | bip32RootKey = Bitcoin.HDNode.fromSeedHex(seed, network); | |
207 | bip32ExtendedKey = bip32RootKey; | |
208 | // Derive the key from the path | |
209 | var pathBits = path.split("/"); | |
210 | for (var i=0; i<pathBits.length; i++) { | |
211 | var bit = pathBits[i]; | |
212 | var index = parseInt(bit); | |
213 | if (isNaN(index)) { | |
214 | continue; | |
215 | } | |
216 | var hardened = bit[bit.length-1] == "'"; | |
217 | if (hardened) { | |
218 | bip32ExtendedKey = bip32ExtendedKey.deriveHardened(index); | |
219 | } | |
220 | else { | |
221 | bip32ExtendedKey = bip32ExtendedKey.derive(index); | |
222 | } | |
223 | } | |
224 | } | |
225 | ||
226 | function showValidationError(errorText) { | |
227 | DOM.feedback | |
228 | .text(errorText) | |
229 | .show(); | |
230 | } | |
231 | ||
232 | function hideValidationError() { | |
233 | DOM.feedback | |
234 | .text("") | |
235 | .hide(); | |
236 | } | |
237 | ||
238 | function findPhraseErrors(phrase) { | |
239 | // TODO make this right | |
240 | // Preprocess the words | |
241 | phrase = mnemonic.normalizeString(phrase); | |
242 | var parts = phrase.split(" "); | |
243 | var proper = []; | |
244 | for (var i=0; i<parts.length; i++) { | |
245 | var part = parts[i]; | |
246 | if (part.length > 0) { | |
247 | // TODO check that lowercasing is always valid to do | |
248 | proper.push(part.toLowerCase()); | |
249 | } | |
250 | } | |
251 | // TODO some levenstein on the words | |
252 | var properPhrase = proper.join(' '); | |
253 | // Check the words are valid | |
254 | var isValid = mnemonic.check(properPhrase); | |
255 | if (!isValid) { | |
256 | return "Invalid mnemonic"; | |
257 | } | |
258 | return false; | |
259 | } | |
260 | ||
261 | function findDerivationPathErrors(path) { | |
262 | // TODO | |
263 | return false; | |
264 | } | |
265 | ||
266 | function displayBip32Info() { | |
267 | // Display the key | |
268 | var rootKey = bip32RootKey.toBase58(); | |
269 | DOM.rootKey.val(rootKey); | |
270 | var extendedPrivKey = bip32ExtendedKey.toBase58(); | |
271 | DOM.extendedPrivKey.val(extendedPrivKey); | |
272 | var extendedPubKey = bip32ExtendedKey.toBase58(false); | |
273 | DOM.extendedPubKey.val(extendedPubKey); | |
274 | // Display the addresses and privkeys | |
275 | clearAddressesList(); | |
276 | displayAddresses(0, 20); | |
277 | } | |
278 | ||
279 | function displayAddresses(start, total) { | |
280 | for (var i=0; i<total; i++) { | |
281 | var index = i + start; | |
282 | new TableRow(index); | |
283 | } | |
284 | } | |
285 | ||
286 | function TableRow(index) { | |
287 | ||
288 | function init() { | |
289 | calculateValues(); | |
290 | } | |
291 | ||
292 | function calculateValues() { | |
293 | setTimeout(function() { | |
294 | var key = bip32ExtendedKey.derive(index); | |
295 | var address = key.getAddress().toString(); | |
296 | var privkey = key.privKey.toWIF(network); | |
297 | addAddressToList(index, address, privkey); | |
298 | }, 50) | |
299 | } | |
300 | ||
301 | init(); | |
302 | ||
303 | } | |
304 | ||
305 | function showMore() { | |
306 | var start = DOM.addresses.children().length; | |
307 | var rowsToAdd = parseInt(DOM.rowsToAdd.val()); | |
308 | if (isNaN(rowsToAdd)) { | |
309 | rowsToAdd = 20; | |
310 | DOM.rowsToAdd.val("20"); | |
311 | } | |
312 | if (rowsToAdd > 200) { | |
313 | var msg = "Generating " + rowsToAdd + " rows could take a while. "; | |
314 | msg += "Do you want to continue?"; | |
315 | if (!confirm(msg)) { | |
316 | return; | |
317 | } | |
318 | } | |
319 | displayAddresses(start, rowsToAdd); | |
320 | } | |
321 | ||
322 | function clearDisplay() { | |
323 | clearAddressesList(); | |
324 | clearKey(); | |
325 | hideValidationError(); | |
326 | } | |
327 | ||
328 | function clearAddressesList() { | |
329 | DOM.addresses.empty(); | |
330 | } | |
331 | ||
332 | function clearKey() { | |
333 | DOM.rootKey.val(""); | |
334 | DOM.extendedPrivKey.val(""); | |
335 | DOM.extendedPubKey.val(""); | |
336 | } | |
337 | ||
338 | function addAddressToList(index, address, privkey) { | |
339 | var row = $(addressRowTemplate.html()); | |
340 | // Elements | |
341 | var indexCell = row.find(".index span"); | |
342 | var addressCell = row.find(".address span"); | |
343 | var privkeyCell = row.find(".privkey span"); | |
344 | // Content | |
345 | indexCell.text(index); | |
346 | addressCell.text(address); | |
347 | privkeyCell.text(privkey); | |
348 | // Visibility | |
349 | if (!showIndex) { | |
350 | indexCell.addClass("invisible"); | |
351 | } | |
352 | if (!showAddress) { | |
353 | addressCell.addClass("invisible"); | |
354 | } | |
355 | if (!showPrivKey) { | |
356 | privkeCell.addClass("invisible"); | |
357 | } | |
358 | DOM.addresses.append(row); | |
359 | } | |
360 | ||
361 | function hasStrongRandom() { | |
362 | return 'crypto' in window && window['crypto'] !== null; | |
363 | } | |
364 | ||
365 | function disableForms() { | |
366 | $("form").on("submit", function(e) { | |
367 | e.preventDefault(); | |
368 | }); | |
369 | } | |
370 | ||
371 | function setBip44DerivationPath() { | |
372 | var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44); | |
373 | var coin = parseIntNoNaN(DOM.bip44coin.val(), 0); | |
374 | var account = parseIntNoNaN(DOM.bip44account.val(), 0); | |
375 | var change = parseIntNoNaN(DOM.bip44change.val(), 0); | |
376 | var path = "m/"; | |
377 | path += purpose + "'/"; | |
378 | path += coin + "'/"; | |
379 | path += account + "'/"; | |
380 | path += change; | |
381 | DOM.bip44path.val(path); | |
382 | } | |
383 | ||
384 | function parseIntNoNaN(val, defaultVal) { | |
385 | var v = parseInt(val); | |
386 | if (isNaN(v)) { | |
387 | return defaultVal; | |
388 | } | |
389 | return v; | |
390 | } | |
391 | ||
392 | function showPending() { | |
393 | DOM.feedback | |
394 | .text("Calculating...") | |
395 | .show(); | |
396 | } | |
397 | ||
398 | function hidePending() { | |
399 | DOM.feedback | |
400 | .text("") | |
401 | .hide(); | |
402 | } | |
403 | ||
404 | init(); | |
405 | ||
406 | })(); |