X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=src%2Fjs%2Findex.js;h=68f1cdaa17e0b6213d057db7184aa263e8fa3f29;hb=146e089e28fbda936955ce74fc1f2214418633c5;hp=4f1ab249f3732fb9ae66f7cdc7b0e7d5360a60b7;hpb=87240b1eabbc9af78ed2bd1e8b2ef430cd4a2af2;p=perso%2FImmae%2FProjets%2FCryptomonnaies%2FBIP39.git

diff --git a/src/js/index.js b/src/js/index.js
index 4f1ab24..68f1cda 100644
--- a/src/js/index.js
+++ b/src/js/index.js
@@ -12,6 +12,7 @@
     var showPrivKey = true;
 
     var phraseChangeTimeoutEvent = null;
+    var rootKeyChangedTimeoutEvent = null;
 
     var DOM = {};
     DOM.network = $(".network");
@@ -34,6 +35,7 @@
     DOM.bip44account = $("#bip44 .account");
     DOM.bip44change = $("#bip44 .change");
     DOM.strength = $(".strength");
+    DOM.hardenedAddresses = $(".hardened-addresses");
     DOM.addresses = $(".addresses");
     DOM.rowsToAdd = $(".rows-to-add");
     DOM.more = $(".more");
@@ -43,8 +45,6 @@
     DOM.addressToggle = $(".address-toggle");
     DOM.privateKeyToggle = $(".private-key-toggle");
 
-    var derivationPath = $(".tab-pane.active .path").val();
-
     function init() {
         // Events
         DOM.network.on("change", networkChanged);
@@ -52,12 +52,14 @@
         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.rootKey.on("input", delayedRootKeyChanged);
+        DOM.bip32path.on("input", calcForDerivationPath);
+        DOM.bip44purpose.on("input", calcForDerivationPath);
+        DOM.bip44coin.on("input", calcForDerivationPath);
+        DOM.bip44account.on("input", calcForDerivationPath);
+        DOM.bip44change.on("input", calcForDerivationPath);
+        DOM.tab.on("shown.bs.tab", calcForDerivationPath);
+        DOM.hardenedAddresses.on("change", calcForDerivationPath);
         DOM.indexToggle.on("click", toggleIndexes);
         DOM.addressToggle.on("click", toggleAddresses);
         DOM.privateKeyToggle.on("click", togglePrivateKeys);
@@ -72,8 +74,7 @@
     function networkChanged(e) {
         var network = e.target.value;
         networks[network].onSelect();
-        setBip44DerivationPath();
-        delayedPhraseChanged();
+        displayBip32Info();
     }
 
     function delayedPhraseChanged() {
@@ -90,20 +91,65 @@
         hideValidationError();
         // Get the mnemonic phrase
         var phrase = DOM.phrase.val();
-        var passphrase = DOM.passphrase.val();
         var errorText = findPhraseErrors(phrase);
         if (errorText) {
             showValidationError(errorText);
             return;
         }
-        // Get the derivation path
-        var errorText = findDerivationPathErrors();
+        // Calculate and display
+        var passphrase = DOM.passphrase.val();
+        calcBip32RootKeyFromSeed(phrase, passphrase);
+        calcForDerivationPath();
+        hidePending();
+    }
+
+    function delayedRootKeyChanged() {
+        // Warn if there is an existing mnemonic or passphrase.
+        if (DOM.phrase.val().length > 0 || DOM.passphrase.val().length > 0) {
+            if (!confirm("This will clear existing mnemonic and passphrase")) {
+                DOM.rootKey.val(bip32RootKey);
+                return
+            }
+        }
+        hideValidationError();
+        showPending();
+        // Clear existing mnemonic and passphrase
+        DOM.phrase.val("");
+        DOM.passphrase.val("");
+        seed = null;
+        if (rootKeyChangedTimeoutEvent != null) {
+            clearTimeout(rootKeyChangedTimeoutEvent);
+        }
+        rootKeyChangedTimeoutEvent = setTimeout(rootKeyChanged, 400);
+    }
+
+    function rootKeyChanged() {
+        showPending();
+        hideValidationError();
+        // Validate the root key TODO
+        var rootKeyBase58 = DOM.rootKey.val();
+        var errorText = validateRootKey(rootKeyBase58);
         if (errorText) {
             showValidationError(errorText);
             return;
         }
         // Calculate and display
-        calcBip32Seed(phrase, passphrase, derivationPath);
+        calcBip32RootKeyFromBase58(rootKeyBase58);
+        calcForDerivationPath();
+        hidePending();
+    }
+
+    function calcForDerivationPath() {
+        showPending();
+        hideValidationError();
+        // Get the derivation path
+        var derivationPath = getDerivationPath();
+        var errorText = findDerivationPathErrors(derivationPath);
+        if (errorText) {
+            showValidationError(errorText);
+            return;
+        }
+        calcBip32ExtendedKey(derivationPath);
         displayBip32Info();
         hidePending();
     }
@@ -120,26 +166,6 @@
         }, 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();
-        derivationChanged();
-    }
-
     function toggleIndexes() {
         showIndex = !showIndex;
         $("td.index span").toggleClass("invisible");
@@ -170,9 +196,16 @@
         return words;
     }
 
-    function calcBip32Seed(phrase, passphrase, path) {
+    function calcBip32RootKeyFromSeed(phrase, passphrase) {
         seed = mnemonic.toSeed(phrase, passphrase);
         bip32RootKey = bitcoin.HDNode.fromSeedHex(seed, network);
+    }
+
+    function calcBip32RootKeyFromBase58(rootKeyBase58) {
+        bip32RootKey = bitcoin.HDNode.fromBase58(rootKeyBase58);
+    }
+
+    function calcBip32ExtendedKey(path) {
         bip32ExtendedKey = bip32RootKey;
         // Derive the key from the path
         var pathBits = path.split("/");
@@ -217,8 +250,16 @@
                 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) {
@@ -227,8 +268,76 @@
         return false;
     }
 
+    function validateRootKey(rootKeyBase58) {
+        try {
+            bitcoin.HDNode.fromBase58(rootKeyBase58);
+        }
+        catch (e) {
+            return "Invalid root key";
+        }
+        return "";
+    }
+
+    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;
     }
 
@@ -255,16 +364,28 @@
 
     function TableRow(index) {
 
+        var useHardenedAddresses = DOM.hardenedAddresses.prop("checked");
+
         function init() {
             calculateValues();
         }
 
         function calculateValues() {
             setTimeout(function() {
-                var key = bip32ExtendedKey.derive(index);
+                var key = "";
+                if (useHardenedAddresses) {
+                    key = bip32ExtendedKey.deriveHardened(index);
+                }
+                else {
+                    key = bip32ExtendedKey.derive(index);
+                }
                 var address = key.getAddress().toString();
                 var privkey = key.privKey.toWIF(network);
-                addAddressToList(index, address, privkey);
+                var indexText = getDerivationPath() + "/" + index;
+                if (useHardenedAddresses) {
+                    indexText = indexText + "'";
+                }
+                addAddressToList(indexText, address, privkey);
             }, 50)
         }
 
@@ -305,14 +426,13 @@
         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);
@@ -339,20 +459,6 @@
         });
     }
 
-    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);
-        derivationPath = DOM.bip44path.val();
-    }
-
     function parseIntNoNaN(val, defaultVal) {
         var v = parseInt(val);
         if (isNaN(v)) {
@@ -367,6 +473,21 @@
             .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("")