X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=src%2Fjs%2Findex.js;h=f3582b0f17461de4de8ce9d8c37038be0ea2bcc0;hb=563e401a4f3880da88bfc69cf51be5a1becd4c66;hp=2f7815d540b9b2fc48f724561a20319e11d6ba1f;hpb=ae30fed8037fa9d1e88e9431c4f301f1d1c53d29;p=perso%2FImmae%2FProjets%2FCryptomonnaies%2FBIP39.git

diff --git a/src/js/index.js b/src/js/index.js
index 2f7815d..f3582b0 100644
--- a/src/js/index.js
+++ b/src/js/index.js
@@ -1,6 +1,7 @@
 (function() {
 
     var mnemonic = new Mnemonic("english");
+    var seed = null
     var bip32RootKey = null;
     var bip32ExtendedKey = null;
     var network = bitcoin.networks.bitcoin;
@@ -18,6 +19,7 @@
     DOM.phrase = $(".phrase");
     DOM.passphrase = $(".passphrase");
     DOM.generate = $(".generate");
+    DOM.seed = $(".seed");
     DOM.rootKey = $(".root-key");
     DOM.extendedPrivKey = $(".extended-priv-key");
     DOM.extendedPubKey = $(".extended-pub-key");
@@ -41,8 +43,6 @@
     DOM.addressToggle = $(".address-toggle");
     DOM.privateKeyToggle = $(".private-key-toggle");
 
-    var derivationPath = $(".tab-pane.active .path").val();
-
     function init() {
         // Events
         DOM.network.on("change", networkChanged);
@@ -50,12 +50,12 @@
         DOM.passphrase.on("input", delayedPhraseChanged);
         DOM.generate.on("click", generateClicked);
         DOM.more.on("click", showMore);
-        DOM.bip32path.on("input", bip32Changed);
-        DOM.bip44purpose.on("input", bip44Changed);
-        DOM.bip44coin.on("input", bip44Changed);
-        DOM.bip44account.on("input", bip44Changed);
-        DOM.bip44change.on("input", bip44Changed);
-        DOM.tab.on("click", tabClicked);
+        DOM.bip32path.on("input", delayedPhraseChanged);
+        DOM.bip44purpose.on("input", delayedPhraseChanged);
+        DOM.bip44coin.on("input", delayedPhraseChanged);
+        DOM.bip44account.on("input", delayedPhraseChanged);
+        DOM.bip44change.on("input", delayedPhraseChanged);
+        DOM.tab.on("click", delayedPhraseChanged);
         DOM.indexToggle.on("click", toggleIndexes);
         DOM.addressToggle.on("click", toggleAddresses);
         DOM.privateKeyToggle.on("click", togglePrivateKeys);
@@ -70,7 +70,6 @@
     function networkChanged(e) {
         var network = e.target.value;
         networks[network].onSelect();
-        setBip44DerivationPath();
         delayedPhraseChanged();
     }
 
@@ -95,7 +94,8 @@
             return;
         }
         // Get the derivation path
-        var errorText = findDerivationPathErrors();
+        var derivationPath = getDerivationPath();
+        var errorText = findDerivationPathErrors(derivationPath);
         if (errorText) {
             showValidationError(errorText);
             return;
@@ -118,27 +118,6 @@
         }, 50);
     }
 
-    function tabClicked(e) {
-        var activePath = $(e.target.getAttribute("href") + " .path");
-        derivationPath = activePath.val();
-        derivationChanged();
-    }
-
-    function derivationChanged() {
-        delayedPhraseChanged();
-    }
-
-    function bip32Changed() {
-        derivationPath = DOM.bip32path.val();
-        derivationChanged();
-    }
-
-    function bip44Changed() {
-        setBip44DerivationPath();
-        derivationPath = DOM.bip44path.val();
-        derivationChanged();
-    }
-
     function toggleIndexes() {
         showIndex = !showIndex;
         $("td.index span").toggleClass("invisible");
@@ -163,21 +142,6 @@
             return;
         }
         var numWords = parseInt(DOM.strength.val());
-        // Check strength is an integer
-        if (isNaN(numWords)) {
-            DOM.strength.val("12");
-            numWords = 12;
-        }
-        // Check strength is a multiple of 32, if not round it down
-        if (numWords % 3 != 0) {
-            numWords = Math.floor(numWords / 3) * 3;
-            DOM.strength.val(numWords);
-        }
-        // Check strength is at least 32
-        if (numWords == 0) {
-            numWords = 3;
-            DOM.strength.val(numWords);
-        }
         var strength = numWords / 3 * 32;
         var words = mnemonic.generate(strength);
         DOM.phrase.val(words);
@@ -185,7 +149,7 @@
     }
 
     function calcBip32Seed(phrase, passphrase, path) {
-        var seed = mnemonic.toSeed(phrase, passphrase);
+        seed = mnemonic.toSeed(phrase, passphrase);
         bip32RootKey = bitcoin.HDNode.fromSeedHex(seed, network);
         bip32ExtendedKey = bip32RootKey;
         // Derive the key from the path
@@ -231,8 +195,16 @@
                 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) {
@@ -241,13 +213,72 @@
         return false;
     }
 
+    function getDerivationPath() {
+        if (DOM.bip44tab.hasClass("active")) {
+            var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44);
+            var coin = parseIntNoNaN(DOM.bip44coin.val(), 0);
+            var account = parseIntNoNaN(DOM.bip44account.val(), 0);
+            var change = parseIntNoNaN(DOM.bip44change.val(), 0);
+            var path = "m/";
+            path += purpose + "'/";
+            path += coin + "'/";
+            path += account + "'/";
+            path += change;
+            DOM.bip44path.val(path);
+            var derivationPath = DOM.bip44path.val();
+            console.log("Using derivation path from BIP44 tab: " + derivationPath);
+            return derivationPath;
+        }
+        else if (DOM.bip32tab.hasClass("active")) {
+            var derivationPath = DOM.bip32path.val();
+            console.log("Using derivation path from BIP32 tab: " + derivationPath);
+            return derivationPath;
+        }
+        else {
+            console.log("Unknown derivation path");
+        }
+    }
+
     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;
     }
 
     function displayBip32Info() {
         // Display the key
+        DOM.seed.val(seed);
         var rootKey = bip32RootKey.toBase58();
         DOM.rootKey.val(rootKey);
         var extendedPrivKey = bip32ExtendedKey.toBase58();
@@ -277,7 +308,8 @@
                 var key = bip32ExtendedKey.derive(index);
                 var address = key.getAddress().toString();
                 var privkey = key.privKey.toWIF(network);
-                addAddressToList(index, address, privkey);
+                var indexText = getDerivationPath() + "/" + index;
+                addAddressToList(indexText, address, privkey);
             }, 50)
         }
 
@@ -318,14 +350,13 @@
         DOM.extendedPubKey.val("");
     }
 
-    function addAddressToList(index, address, privkey) {
+    function addAddressToList(indexText, address, privkey) {
         var row = $(addressRowTemplate.html());
         // Elements
         var indexCell = row.find(".index span");
         var addressCell = row.find(".address span");
         var privkeyCell = row.find(".privkey span");
         // Content
-        var indexText = derivationPath + "/" + index;
         indexCell.text(indexText);
         addressCell.text(address);
         privkeyCell.text(privkey);
@@ -337,7 +368,7 @@
             addressCell.addClass("invisible");
         }
         if (!showPrivKey) {
-            privkeCell.addClass("invisible");
+            privkeyCell.addClass("invisible");
         }
         DOM.addresses.append(row);
     }
@@ -352,19 +383,6 @@
         });
     }
 
-    function setBip44DerivationPath() {
-        var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44);
-        var coin = parseIntNoNaN(DOM.bip44coin.val(), 0);
-        var account = parseIntNoNaN(DOM.bip44account.val(), 0);
-        var change = parseIntNoNaN(DOM.bip44change.val(), 0);
-        var path = "m/";
-        path += purpose + "'/";
-        path += coin + "'/";
-        path += account + "'/";
-        path += change;
-        DOM.bip44path.val(path);
-    }
-
     function parseIntNoNaN(val, defaultVal) {
         var v = parseInt(val);
         if (isNaN(v)) {
@@ -379,6 +397,21 @@
             .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("")
@@ -459,6 +492,13 @@
                 DOM.bip44coin.val(26);
             },
         },
+        {
+            name: "CLAM",
+            onSelect: function() {
+                network = bitcoin.networks.clam;
+                DOM.bip44coin.val(23);
+            },
+        },
     ]
 
     init();