proper.push(part.toLowerCase());
}
}
- // TODO some levenstein on the words
var properPhrase = proper.join(' ');
+ // Check each word
+ for (var i=0; i<proper.length; i++) {
+ var word = proper[i];
+ if (WORDLISTS["english"].indexOf(word) == -1) {
+ console.log("Finding closest match to " + word);
+ var nearestWord = findNearestWord(word);
+ return word + " not in wordlist, did you mean " + nearestWord + "?";
+ }
+ }
// Check the words are valid
var isValid = mnemonic.check(properPhrase);
if (!isValid) {
}
function findDerivationPathErrors(path) {
- // TODO
+ // TODO is not perfect but is better than nothing
+ // Inspired by
+ // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors
+ // and
+ // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys
+ var maxDepth = 255; // TODO verify this!!
+ var maxIndexValue = Math.pow(2, 31); // TODO verify this!!
+ if (path[0] != "m") {
+ return "First character must be 'm'";
+ }
+ if (path.length > 1) {
+ if (path[1] != "/") {
+ return "Separator must be '/'";
+ }
+ var indexes = path.split("/");
+ if (indexes.length > maxDepth) {
+ return "Derivation depth is " + indexes.length + ", must be less than " + maxDepth;
+ }
+ for (var depth = 1; depth<indexes.length; depth++) {
+ var index = indexes[depth];
+ var invalidChars = index.replace(/^[0-9]+'?$/g, "")
+ if (invalidChars.length > 0) {
+ return "Invalid characters " + invalidChars + " found at depth " + depth;
+ }
+ var indexValue = parseInt(index.replace("'", ""));
+ if (isNaN(depth)) {
+ return "Invalid number at depth " + depth;
+ }
+ if (indexValue > maxIndexValue) {
+ return "Value of " + indexValue + " at depth " + depth + " must be less than " + maxIndexValue;
+ }
+ }
+ }
return false;
}
.show();
}
+ function findNearestWord(word) {
+ var words = WORDLISTS["english"];
+ var minDistance = 99;
+ var closestWord = words[0];
+ for (var i=0; i<words.length; i++) {
+ var comparedTo = words[i];
+ var distance = Levenshtein.get(word, comparedTo);
+ if (distance < minDistance) {
+ closestWord = comparedTo;
+ minDistance = distance;
+ }
+ }
+ return closestWord;
+ }
+
function hidePending() {
DOM.feedback
.text("")