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authorAdam Soltys <[email protected]>2015-11-28 23:57:34 -0800
committerAdam Soltys <[email protected]>2015-11-30 21:10:59 -0800
commit41f8c6831bb91c0b0be1219b1566e59e48673465 (patch)
tree39626cf1a8fe7b8d73f750ccaf433bfa8c425d6b /public/js/wallet.js
parentf2bff842cbe16c18923b905f70ed168096648727 (diff)
downloadcoinos-server-41f8c6831bb91c0b0be1219b1566e59e48673465.tar.gz
coinos-server-41f8c6831bb91c0b0be1219b1566e59e48673465.zip
Use bower, grunt and browserify instead of connect-assets
Diffstat (limited to 'public/js/wallet.js')
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diff --git a/public/js/wallet.js b/public/js/wallet.js
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@@ -0,0 +1,2626 @@
+;(function(e,t,n){function i(n,s){if(!t[n]){if(!e[n]){var o=typeof require=="function"&&require;if(!s&&o)return o(n,!0);if(r)return r(n,!0);throw new Error("Cannot find module '"+n+"'")}var u=t[n]={exports:{}};e[n][0](function(t){var r=e[n][1][t];return i(r?r:t)},u,u.exports)}return t[n].exports}var r=typeof require=="function"&&require;for(var s=0;s<n.length;s++)i(n[s]);return i})({1:[function(require,module,exports){
+(function(){(function() {
+ var buffer, check_address, convertedAmount, createWallet, g, getBalance, getExchangeRate, getToken, getUser, isBip32, multiplier, precision, sendTransaction;
+
+ buffer = require('buffer');
+
+ g = typeof exports !== "undefined" && exports !== null ? exports : this;
+
+ g.proceed = false;
+
+ g.api = 'https://api.blockcypher.com/v1/btc/main';
+
+ $(function() {
+ getToken();
+ $('#settings form input[type=button]').click(function() {
+ $('.form-control').blur();
+ if ($('.has-error').length > 0) {
+ $('.has-error').effect('shake', 500);
+ }
+ $.ajax({
+ url: "" + g.api + "/wallets/hd/" + g.user.username + "?token=" + g.token,
+ type: 'DELETE'
+ });
+ $.post("/" + g.user.username, $('#settings form').serializeObject(), function() {
+ return $('#settings .alert-success').fadeIn().delay(500).fadeOut();
+ });
+ return false;
+ });
+ $('#withdraw form input[type=button]').click(function() {
+ return sendTransaction();
+ });
+ $('#currency_toggle').click(function() {
+ var amount;
+ if ($(this).html() === g.user.unit) {
+ $(this).html(g.user.currency);
+ g.amount = parseFloat($('#amount').val()).toFixed(precision());
+ amount = (g.amount * g.exchange / multiplier()).toFixed(2);
+ $('#amount').val(amount);
+ $('#amount').attr('step', 0.01);
+ return $('#amount').attr('max', (g.balance * g.exchange / multiplier()).toFixed(2));
+ } else {
+ $(this).html(g.user.unit);
+ $('#amount').val(convertedAmount());
+ $('#amount').attr('step', 0.00000001 * multiplier());
+ return $('#amount').attr('max', g.balance);
+ }
+ });
+ $('#max').click(function() {
+ var amount;
+ if ($('#currency_toggle').html() === g.user.unit) {
+ return $('#amount').val(g.balance);
+ } else {
+ g.amount = parseFloat(g.balance).toFixed(precision());
+ amount = (g.balance / multiplier() * g.exchange).toFixed(2);
+ return $('#amount').val(amount);
+ }
+ });
+ return $('#amount').change(function() {
+ if ($('#currency_toggle').html() === g.user.unit) {
+ $(this).val(parseFloat($(this).val()).toFixed(precision()));
+ } else {
+ $(this).val(parseFloat($(this).val()).toFixed(2));
+ }
+ if ($(this).val() > $(this).attr('max')) {
+ return $(this).val($(this).attr('max'));
+ }
+ });
+ });
+
+ getToken = function() {
+ return $.get("/token", function(token) {
+ g.token = token;
+ return getUser();
+ });
+ };
+
+ getUser = function() {
+ return $.getJSON("/" + ($('#username').val()) + ".json", function(user) {
+ g.user = user;
+ $('#pubkey').val(user.pubkey);
+ $('#privkey').val(user.privkey);
+ $('#address').val(user.address);
+ $('#unit').html(user.unit);
+ $('#currency_toggle').html(user.unit);
+ $('#amount').attr('step', 0.00000001 * multiplier());
+ return getExchangeRate();
+ });
+ };
+
+ getExchangeRate = function() {
+ return $.get("/ticker?currency=" + g.user.currency + "&symbol=" + g.user.symbol + "&type=bid", function(exchange) {
+ g.exchange = exchange;
+ return createWallet();
+ });
+ };
+
+ createWallet = function() {
+ var data;
+ if (isBip32(g.user.pubkey)) {
+ data = {
+ name: g.user.username,
+ extended_public_key: g.user.pubkey,
+ subchain_indexes: [0, 1]
+ };
+ return $.post("" + g.api + "/wallets/hd?token=" + g.token, JSON.stringify(data)).always(getBalance);
+ } else {
+ $('#balance').html(99);
+ return $('#amount').val(99);
+ }
+ };
+
+ getBalance = function() {
+ return $.get("" + g.api + "/addrs/" + g.user.username + "/balance?token=" + g.token + "&omitWalletAddresses=true", function(data) {
+ var balance, fiat;
+ balance = data.final_balance;
+ g.balance = (balance * multiplier() / 100000000).toFixed(precision());
+ fiat = (g.balance * g.exchange / multiplier()).toFixed(2);
+ $('#balance').html(g.balance);
+ $('#balance').parent().fadeIn();
+ $('#fiat').html("" + fiat + " " + g.user.currency);
+ $('#amount').val(g.balance);
+ return $('#amount').attr('max', g.balance);
+ });
+ };
+
+ sendTransaction = function() {
+ var amount, fee, master, req, value;
+ master = bitcoin.HDNode.fromBase58(g.user.privkey);
+ if (typeof master.keyPair.d !== 'undefined') {
+ fee = 12500;
+ if ($('#currency_toggle').html() === g.user.unit) {
+ amount = $('#amount').val();
+ } else {
+ amount = convertedAmount();
+ }
+ value = parseInt(amount * 100000000 / multiplier());
+ req = {
+ inputs: [
+ {
+ wallet_name: g.user.username,
+ wallet_token: g.token
+ }
+ ],
+ outputs: [
+ {
+ addresses: [$('#recipient').val()],
+ value: value
+ }
+ ]
+ };
+ return $.post("" + g.api + "/txs/new?token=" + g.token, JSON.stringify(req)).then(function(tx) {
+ tx.pubkeys = [];
+ tx.signatures = tx.tosign.map(function(tosign, i) {
+ var key, path;
+ path = tx.tx.inputs[i].hd_path.split('/');
+ key = master.derive(path[1]).derive(path[2]);
+ tx.pubkeys.push(key.getPublicKeyBuffer().toString('hex'));
+ return key.sign(new buffer.Buffer(tosign, "hex")).toDER().toString("hex");
+ });
+ return $.post("" + g.api + "/txs/send?token=" + g.token, JSON.stringify(tx)).then(function(finaltx) {
+ return $('#withdraw .alert-success').fadeIn().delay(500).fadeOut();
+ });
+ });
+ } else {
+ return $('#withdraw .alert-danger').fadeIn().delay(500).fadeOut();
+ }
+ };
+
+ convertedAmount = function() {
+ var amount, difference, tolerance;
+ amount = parseFloat($('#amount').val() * multiplier() / g.exchange).toFixed(precision());
+ difference = parseFloat(Math.abs(g.amount - amount).toFixed(precision()));
+ tolerance = parseFloat((.00000002 * g.exchange * multiplier()).toFixed(precision()));
+ if (difference > tolerance) {
+ return amount;
+ } else {
+ return g.amount;
+ }
+ };
+
+ check_address = function(address) {
+ try {
+ bitcoin.address.fromBase58Check(address);
+ return true;
+ } catch (_error) {
+ return isBip32(address);
+ }
+ };
+
+ isBip32 = function(address) {
+ try {
+ bitcoin.HDNode.fromBase58(address);
+ return true;
+ } catch (_error) {
+ return false;
+ }
+ };
+
+ multiplier = function() {
+ switch (g.user.unit) {
+ case 'BTC':
+ return 1;
+ case 'mBTC':
+ return 1000;
+ case 'µBTC':
+ return 1000000;
+ case 'bits':
+ return 1000000;
+ case 'satoshis':
+ return 100000000;
+ }
+ };
+
+ precision = function() {
+ return 9 - multiplier().toString().length;
+ };
+
+}).call(this);
+
+
+})()
+},{"buffer":2}],3:[function(require,module,exports){
+(function(){// UTILITY
+var util = require('util');
+var Buffer = require("buffer").Buffer;
+var pSlice = Array.prototype.slice;
+
+function objectKeys(object) {
+ if (Object.keys) return Object.keys(object);
+ var result = [];
+ for (var name in object) {
+ if (Object.prototype.hasOwnProperty.call(object, name)) {
+ result.push(name);
+ }
+ }
+ return result;
+}
+
+// 1. The assert module provides functions that throw
+// AssertionError's when particular conditions are not met. The
+// assert module must conform to the following interface.
+
+var assert = module.exports = ok;
+
+// 2. The AssertionError is defined in assert.
+// new assert.AssertionError({ message: message,
+// actual: actual,
+// expected: expected })
+
+assert.AssertionError = function AssertionError(options) {
+ this.name = 'AssertionError';
+ this.message = options.message;
+ this.actual = options.actual;
+ this.expected = options.expected;
+ this.operator = options.operator;
+ var stackStartFunction = options.stackStartFunction || fail;
+
+ if (Error.captureStackTrace) {
+ Error.captureStackTrace(this, stackStartFunction);
+ }
+};
+util.inherits(assert.AssertionError, Error);
+
+function replacer(key, value) {
+ if (value === undefined) {
+ return '' + value;
+ }
+ if (typeof value === 'number' && (isNaN(value) || !isFinite(value))) {
+ return value.toString();
+ }
+ if (typeof value === 'function' || value instanceof RegExp) {
+ return value.toString();
+ }
+ return value;
+}
+
+function truncate(s, n) {
+ if (typeof s == 'string') {
+ return s.length < n ? s : s.slice(0, n);
+ } else {
+ return s;
+ }
+}
+
+assert.AssertionError.prototype.toString = function() {
+ if (this.message) {
+ return [this.name + ':', this.message].join(' ');
+ } else {
+ return [
+ this.name + ':',
+ truncate(JSON.stringify(this.actual, replacer), 128),
+ this.operator,
+ truncate(JSON.stringify(this.expected, replacer), 128)
+ ].join(' ');
+ }
+};
+
+// assert.AssertionError instanceof Error
+
+assert.AssertionError.__proto__ = Error.prototype;
+
+// At present only the three keys mentioned above are used and
+// understood by the spec. Implementations or sub modules can pass
+// other keys to the AssertionError's constructor - they will be
+// ignored.
+
+// 3. All of the following functions must throw an AssertionError
+// when a corresponding condition is not met, with a message that
+// may be undefined if not provided. All assertion methods provide
+// both the actual and expected values to the assertion error for
+// display purposes.
+
+function fail(actual, expected, message, operator, stackStartFunction) {
+ throw new assert.AssertionError({
+ message: message,
+ actual: actual,
+ expected: expected,
+ operator: operator,
+ stackStartFunction: stackStartFunction
+ });
+}
+
+// EXTENSION! allows for well behaved errors defined elsewhere.
+assert.fail = fail;
+
+// 4. Pure assertion tests whether a value is truthy, as determined
+// by !!guard.
+// assert.ok(guard, message_opt);
+// This statement is equivalent to assert.equal(true, guard,
+// message_opt);. To test strictly for the value true, use
+// assert.strictEqual(true, guard, message_opt);.
+
+function ok(value, message) {
+ if (!!!value) fail(value, true, message, '==', assert.ok);
+}
+assert.ok = ok;
+
+// 5. The equality assertion tests shallow, coercive equality with
+// ==.
+// assert.equal(actual, expected, message_opt);
+
+assert.equal = function equal(actual, expected, message) {
+ if (actual != expected) fail(actual, expected, message, '==', assert.equal);
+};
+
+// 6. The non-equality assertion tests for whether two objects are not equal
+// with != assert.notEqual(actual, expected, message_opt);
+
+assert.notEqual = function notEqual(actual, expected, message) {
+ if (actual == expected) {
+ fail(actual, expected, message, '!=', assert.notEqual);
+ }
+};
+
+// 7. The equivalence assertion tests a deep equality relation.
+// assert.deepEqual(actual, expected, message_opt);
+
+assert.deepEqual = function deepEqual(actual, expected, message) {
+ if (!_deepEqual(actual, expected)) {
+ fail(actual, expected, message, 'deepEqual', assert.deepEqual);
+ }
+};
+
+function _deepEqual(actual, expected) {
+ // 7.1. All identical values are equivalent, as determined by ===.
+ if (actual === expected) {
+ return true;
+
+ } else if (Buffer.isBuffer(actual) && Buffer.isBuffer(expected)) {
+ if (actual.length != expected.length) return false;
+
+ for (var i = 0; i < actual.length; i++) {
+ if (actual[i] !== expected[i]) return false;
+ }
+
+ return true;
+
+ // 7.2. If the expected value is a Date object, the actual value is
+ // equivalent if it is also a Date object that refers to the same time.
+ } else if (actual instanceof Date && expected instanceof Date) {
+ return actual.getTime() === expected.getTime();
+
+ // 7.3. Other pairs that do not both pass typeof value == 'object',
+ // equivalence is determined by ==.
+ } else if (typeof actual != 'object' && typeof expected != 'object') {
+ return actual == expected;
+
+ // 7.4. For all other Object pairs, including Array objects, equivalence is
+ // determined by having the same number of owned properties (as verified
+ // with Object.prototype.hasOwnProperty.call), the same set of keys
+ // (although not necessarily the same order), equivalent values for every
+ // corresponding key, and an identical 'prototype' property. Note: this
+ // accounts for both named and indexed properties on Arrays.
+ } else {
+ return objEquiv(actual, expected);
+ }
+}
+
+function isUndefinedOrNull(value) {
+ return value === null || value === undefined;
+}
+
+function isArguments(object) {
+ return Object.prototype.toString.call(object) == '[object Arguments]';
+}
+
+function objEquiv(a, b) {
+ if (isUndefinedOrNull(a) || isUndefinedOrNull(b))
+ return false;
+ // an identical 'prototype' property.
+ if (a.prototype !== b.prototype) return false;
+ //~~~I've managed to break Object.keys through screwy arguments passing.
+ // Converting to array solves the problem.
+ if (isArguments(a)) {
+ if (!isArguments(b)) {
+ return false;
+ }
+ a = pSlice.call(a);
+ b = pSlice.call(b);
+ return _deepEqual(a, b);
+ }
+ try {
+ var ka = objectKeys(a),
+ kb = objectKeys(b),
+ key, i;
+ } catch (e) {//happens when one is a string literal and the other isn't
+ return false;
+ }
+ // having the same number of owned properties (keys incorporates
+ // hasOwnProperty)
+ if (ka.length != kb.length)
+ return false;
+ //the same set of keys (although not necessarily the same order),
+ ka.sort();
+ kb.sort();
+ //~~~cheap key test
+ for (i = ka.length - 1; i >= 0; i--) {
+ if (ka[i] != kb[i])
+ return false;
+ }
+ //equivalent values for every corresponding key, and
+ //~~~possibly expensive deep test
+ for (i = ka.length - 1; i >= 0; i--) {
+ key = ka[i];
+ if (!_deepEqual(a[key], b[key])) return false;
+ }
+ return true;
+}
+
+// 8. The non-equivalence assertion tests for any deep inequality.
+// assert.notDeepEqual(actual, expected, message_opt);
+
+assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
+ if (_deepEqual(actual, expected)) {
+ fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
+ }
+};
+
+// 9. The strict equality assertion tests strict equality, as determined by ===.
+// assert.strictEqual(actual, expected, message_opt);
+
+assert.strictEqual = function strictEqual(actual, expected, message) {
+ if (actual !== expected) {
+ fail(actual, expected, message, '===', assert.strictEqual);
+ }
+};
+
+// 10. The strict non-equality assertion tests for strict inequality, as
+// determined by !==. assert.notStrictEqual(actual, expected, message_opt);
+
+assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
+ if (actual === expected) {
+ fail(actual, expected, message, '!==', assert.notStrictEqual);
+ }
+};
+
+function expectedException(actual, expected) {
+ if (!actual || !expected) {
+ return false;
+ }
+
+ if (expected instanceof RegExp) {
+ return expected.test(actual);
+ } else if (actual instanceof expected) {
+ return true;
+ } else if (expected.call({}, actual) === true) {
+ return true;
+ }
+
+ return false;
+}
+
+function _throws(shouldThrow, block, expected, message) {
+ var actual;
+
+ if (typeof expected === 'string') {
+ message = expected;
+ expected = null;
+ }
+
+ try {
+ block();
+ } catch (e) {
+ actual = e;
+ }
+
+ message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
+ (message ? ' ' + message : '.');
+
+ if (shouldThrow && !actual) {
+ fail('Missing expected exception' + message);
+ }
+
+ if (!shouldThrow && expectedException(actual, expected)) {
+ fail('Got unwanted exception' + message);
+ }
+
+ if ((shouldThrow && actual && expected &&
+ !expectedException(actual, expected)) || (!shouldThrow && actual)) {
+ throw actual;
+ }
+}
+
+// 11. Expected to throw an error:
+// assert.throws(block, Error_opt, message_opt);
+
+assert.throws = function(block, /*optional*/error, /*optional*/message) {
+ _throws.apply(this, [true].concat(pSlice.call(arguments)));
+};
+
+// EXTENSION! This is annoying to write outside this module.
+assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
+ _throws.apply(this, [false].concat(pSlice.call(arguments)));
+};
+
+assert.ifError = function(err) { if (err) {throw err;}};
+
+})()
+},{"util":4,"buffer":2}],4:[function(require,module,exports){
+var events = require('events');
+
+exports.isArray = isArray;
+exports.isDate = function(obj){return Object.prototype.toString.call(obj) === '[object Date]'};
+exports.isRegExp = function(obj){return Object.prototype.toString.call(obj) === '[object RegExp]'};
+
+
+exports.print = function () {};
+exports.puts = function () {};
+exports.debug = function() {};
+
+exports.inspect = function(obj, showHidden, depth, colors) {
+ var seen = [];
+
+ var stylize = function(str, styleType) {
+ // http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
+ var styles =
+ { 'bold' : [1, 22],
+ 'italic' : [3, 23],
+ 'underline' : [4, 24],
+ 'inverse' : [7, 27],
+ 'white' : [37, 39],
+ 'grey' : [90, 39],
+ 'black' : [30, 39],
+ 'blue' : [34, 39],
+ 'cyan' : [36, 39],
+ 'green' : [32, 39],
+ 'magenta' : [35, 39],
+ 'red' : [31, 39],
+ 'yellow' : [33, 39] };
+
+ var style =
+ { 'special': 'cyan',
+ 'number': 'blue',
+ 'boolean': 'yellow',
+ 'undefined': 'grey',
+ 'null': 'bold',
+ 'string': 'green',
+ 'date': 'magenta',
+ // "name": intentionally not styling
+ 'regexp': 'red' }[styleType];
+
+ if (style) {
+ return '\033[' + styles[style][0] + 'm' + str +
+ '\033[' + styles[style][1] + 'm';
+ } else {
+ return str;
+ }
+ };
+ if (! colors) {
+ stylize = function(str, styleType) { return str; };
+ }
+
+ function format(value, recurseTimes) {
+ // Provide a hook for user-specified inspect functions.
+ // Check that value is an object with an inspect function on it
+ if (value && typeof value.inspect === 'function' &&
+ // Filter out the util module, it's inspect function is special
+ value !== exports &&
+ // Also filter out any prototype objects using the circular check.
+ !(value.constructor && value.constructor.prototype === value)) {
+ return value.inspect(recurseTimes);
+ }
+
+ // Primitive types cannot have properties
+ switch (typeof value) {
+ case 'undefined':
+ return stylize('undefined', 'undefined');
+
+ case 'string':
+ var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
+ .replace(/'/g, "\\'")
+ .replace(/\\"/g, '"') + '\'';
+ return stylize(simple, 'string');
+
+ case 'number':
+ return stylize('' + value, 'number');
+
+ case 'boolean':
+ return stylize('' + value, 'boolean');
+ }
+ // For some reason typeof null is "object", so special case here.
+ if (value === null) {
+ return stylize('null', 'null');
+ }
+
+ // Look up the keys of the object.
+ var visible_keys = Object_keys(value);
+ var keys = showHidden ? Object_getOwnPropertyNames(value) : visible_keys;
+
+ // Functions without properties can be shortcutted.
+ if (typeof value === 'function' && keys.length === 0) {
+ if (isRegExp(value)) {
+ return stylize('' + value, 'regexp');
+ } else {
+ var name = value.name ? ': ' + value.name : '';
+ return stylize('[Function' + name + ']', 'special');
+ }
+ }
+
+ // Dates without properties can be shortcutted
+ if (isDate(value) && keys.length === 0) {
+ return stylize(value.toUTCString(), 'date');
+ }
+
+ var base, type, braces;
+ // Determine the object type
+ if (isArray(value)) {
+ type = 'Array';
+ braces = ['[', ']'];
+ } else {
+ type = 'Object';
+ braces = ['{', '}'];
+ }
+
+ // Make functions say that they are functions
+ if (typeof value === 'function') {
+ var n = value.name ? ': ' + value.name : '';
+ base = (isRegExp(value)) ? ' ' + value : ' [Function' + n + ']';
+ } else {
+ base = '';
+ }
+
+ // Make dates with properties first say the date
+ if (isDate(value)) {
+ base = ' ' + value.toUTCString();
+ }
+
+ if (keys.length === 0) {
+ return braces[0] + base + braces[1];
+ }
+
+ if (recurseTimes < 0) {
+ if (isRegExp(value)) {
+ return stylize('' + value, 'regexp');
+ } else {
+ return stylize('[Object]', 'special');
+ }
+ }
+
+ seen.push(value);
+
+ var output = keys.map(function(key) {
+ var name, str;
+ if (value.__lookupGetter__) {
+ if (value.__lookupGetter__(key)) {
+ if (value.__lookupSetter__(key)) {
+ str = stylize('[Getter/Setter]', 'special');
+ } else {
+ str = stylize('[Getter]', 'special');
+ }
+ } else {
+ if (value.__lookupSetter__(key)) {
+ str = stylize('[Setter]', 'special');
+ }
+ }
+ }
+ if (visible_keys.indexOf(key) < 0) {
+ name = '[' + key + ']';
+ }
+ if (!str) {
+ if (seen.indexOf(value[key]) < 0) {
+ if (recurseTimes === null) {
+ str = format(value[key]);
+ } else {
+ str = format(value[key], recurseTimes - 1);
+ }
+ if (str.indexOf('\n') > -1) {
+ if (isArray(value)) {
+ str = str.split('\n').map(function(line) {
+ return ' ' + line;
+ }).join('\n').substr(2);
+ } else {
+ str = '\n' + str.split('\n').map(function(line) {
+ return ' ' + line;
+ }).join('\n');
+ }
+ }
+ } else {
+ str = stylize('[Circular]', 'special');
+ }
+ }
+ if (typeof name === 'undefined') {
+ if (type === 'Array' && key.match(/^\d+$/)) {
+ return str;
+ }
+ name = JSON.stringify('' + key);
+ if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
+ name = name.substr(1, name.length - 2);
+ name = stylize(name, 'name');
+ } else {
+ name = name.replace(/'/g, "\\'")
+ .replace(/\\"/g, '"')
+ .replace(/(^"|"$)/g, "'");
+ name = stylize(name, 'string');
+ }
+ }
+
+ return name + ': ' + str;
+ });
+
+ seen.pop();
+
+ var numLinesEst = 0;
+ var length = output.reduce(function(prev, cur) {
+ numLinesEst++;
+ if (cur.indexOf('\n') >= 0) numLinesEst++;
+ return prev + cur.length + 1;
+ }, 0);
+
+ if (length > 50) {
+ output = braces[0] +
+ (base === '' ? '' : base + '\n ') +
+ ' ' +
+ output.join(',\n ') +
+ ' ' +
+ braces[1];
+
+ } else {
+ output = braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
+ }
+
+ return output;
+ }
+ return format(obj, (typeof depth === 'undefined' ? 2 : depth));
+};
+
+
+function isArray(ar) {
+ return ar instanceof Array ||
+ Array.isArray(ar) ||
+ (ar && ar !== Object.prototype && isArray(ar.__proto__));
+}
+
+
+function isRegExp(re) {
+ return re instanceof RegExp ||
+ (typeof re === 'object' && Object.prototype.toString.call(re) === '[object RegExp]');
+}
+
+
+function isDate(d) {
+ if (d instanceof Date) return true;
+ if (typeof d !== 'object') return false;
+ var properties = Date.prototype && Object_getOwnPropertyNames(Date.prototype);
+ var proto = d.__proto__ && Object_getOwnPropertyNames(d.__proto__);
+ return JSON.stringify(proto) === JSON.stringify(properties);
+}
+
+function pad(n) {
+ return n < 10 ? '0' + n.toString(10) : n.toString(10);
+}
+
+var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
+ 'Oct', 'Nov', 'Dec'];
+
+// 26 Feb 16:19:34
+function timestamp() {
+ var d = new Date();
+ var time = [pad(d.getHours()),
+ pad(d.getMinutes()),
+ pad(d.getSeconds())].join(':');
+ return [d.getDate(), months[d.getMonth()], time].join(' ');
+}
+
+exports.log = function (msg) {};
+
+exports.pump = null;
+
+var Object_keys = Object.keys || function (obj) {
+ var res = [];
+ for (var key in obj) res.push(key);
+ return res;
+};
+
+var Object_getOwnPropertyNames = Object.getOwnPropertyNames || function (obj) {
+ var res = [];
+ for (var key in obj) {
+ if (Object.hasOwnProperty.call(obj, key)) res.push(key);
+ }
+ return res;
+};
+
+var Object_create = Object.create || function (prototype, properties) {
+ // from es5-shim
+ var object;
+ if (prototype === null) {
+ object = { '__proto__' : null };
+ }
+ else {
+ if (typeof prototype !== 'object') {
+ throw new TypeError(
+ 'typeof prototype[' + (typeof prototype) + '] != \'object\''
+ );
+ }
+ var Type = function () {};
+ Type.prototype = prototype;
+ object = new Type();
+ object.__proto__ = prototype;
+ }
+ if (typeof properties !== 'undefined' && Object.defineProperties) {
+ Object.defineProperties(object, properties);
+ }
+ return object;
+};
+
+exports.inherits = function(ctor, superCtor) {
+ ctor.super_ = superCtor;
+ ctor.prototype = Object_create(superCtor.prototype, {
+ constructor: {
+ value: ctor,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ }
+ });
+};
+
+var formatRegExp = /%[sdj%]/g;
+exports.format = function(f) {
+ if (typeof f !== 'string') {
+ var objects = [];
+ for (var i = 0; i < arguments.length; i++) {
+ objects.push(exports.inspect(arguments[i]));
+ }
+ return objects.join(' ');
+ }
+
+ var i = 1;
+ var args = arguments;
+ var len = args.length;
+ var str = String(f).replace(formatRegExp, function(x) {
+ if (x === '%%') return '%';
+ if (i >= len) return x;
+ switch (x) {
+ case '%s': return String(args[i++]);
+ case '%d': return Number(args[i++]);
+ case '%j': return JSON.stringify(args[i++]);
+ default:
+ return x;
+ }
+ });
+ for(var x = args[i]; i < len; x = args[++i]){
+ if (x === null || typeof x !== 'object') {
+ str += ' ' + x;
+ } else {
+ str += ' ' + exports.inspect(x);
+ }
+ }
+ return str;
+};
+
+},{"events":5}],6:[function(require,module,exports){
+exports.readIEEE754 = function(buffer, offset, isBE, mLen, nBytes) {
+ var e, m,
+ eLen = nBytes * 8 - mLen - 1,
+ eMax = (1 << eLen) - 1,
+ eBias = eMax >> 1,
+ nBits = -7,
+ i = isBE ? 0 : (nBytes - 1),
+ d = isBE ? 1 : -1,
+ s = buffer[offset + i];
+
+ i += d;
+
+ e = s & ((1 << (-nBits)) - 1);
+ s >>= (-nBits);
+ nBits += eLen;
+ for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8);
+
+ m = e & ((1 << (-nBits)) - 1);
+ e >>= (-nBits);
+ nBits += mLen;
+ for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8);
+
+ if (e === 0) {
+ e = 1 - eBias;
+ } else if (e === eMax) {
+ return m ? NaN : ((s ? -1 : 1) * Infinity);
+ } else {
+ m = m + Math.pow(2, mLen);
+ e = e - eBias;
+ }
+ return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
+};
+
+exports.writeIEEE754 = function(buffer, value, offset, isBE, mLen, nBytes) {
+ var e, m, c,
+ eLen = nBytes * 8 - mLen - 1,
+ eMax = (1 << eLen) - 1,
+ eBias = eMax >> 1,
+ rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0),
+ i = isBE ? (nBytes - 1) : 0,
+ d = isBE ? -1 : 1,
+ s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;
+
+ value = Math.abs(value);
+
+ if (isNaN(value) || value === Infinity) {
+ m = isNaN(value) ? 1 : 0;
+ e = eMax;
+ } else {
+ e = Math.floor(Math.log(value) / Math.LN2);
+ if (value * (c = Math.pow(2, -e)) < 1) {
+ e--;
+ c *= 2;
+ }
+ if (e + eBias >= 1) {
+ value += rt / c;
+ } else {
+ value += rt * Math.pow(2, 1 - eBias);
+ }
+ if (value * c >= 2) {
+ e++;
+ c /= 2;
+ }
+
+ if (e + eBias >= eMax) {
+ m = 0;
+ e = eMax;
+ } else if (e + eBias >= 1) {
+ m = (value * c - 1) * Math.pow(2, mLen);
+ e = e + eBias;
+ } else {
+ m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
+ e = 0;
+ }
+ }
+
+ for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8);
+
+ e = (e << mLen) | m;
+ eLen += mLen;
+ for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8);
+
+ buffer[offset + i - d] |= s * 128;
+};
+
+},{}],7:[function(require,module,exports){
+// shim for using process in browser
+
+var process = module.exports = {};
+
+process.nextTick = (function () {
+ var canSetImmediate = typeof window !== 'undefined'
+ && window.setImmediate;
+ var canPost = typeof window !== 'undefined'
+ && window.postMessage && window.addEventListener
+ ;
+
+ if (canSetImmediate) {
+ return function (f) { return window.setImmediate(f) };
+ }
+
+ if (canPost) {
+ var queue = [];
+ window.addEventListener('message', function (ev) {
+ var source = ev.source;
+ if ((source === window || source === null) && ev.data === 'process-tick') {
+ ev.stopPropagation();
+ if (queue.length > 0) {
+ var fn = queue.shift();
+ fn();
+ }
+ }
+ }, true);
+
+ return function nextTick(fn) {
+ queue.push(fn);
+ window.postMessage('process-tick', '*');
+ };
+ }
+
+ return function nextTick(fn) {
+ setTimeout(fn, 0);
+ };
+})();
+
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+
+process.binding = function (name) {
+ throw new Error('process.binding is not supported');
+}
+
+// TODO(shtylman)
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+ throw new Error('process.chdir is not supported');
+};
+
+},{}],5:[function(require,module,exports){
+(function(process){if (!process.EventEmitter) process.EventEmitter = function () {};
+
+var EventEmitter = exports.EventEmitter = process.EventEmitter;
+var isArray = typeof Array.isArray === 'function'
+ ? Array.isArray
+ : function (xs) {
+ return Object.prototype.toString.call(xs) === '[object Array]'
+ }
+;
+function indexOf (xs, x) {
+ if (xs.indexOf) return xs.indexOf(x);
+ for (var i = 0; i < xs.length; i++) {
+ if (x === xs[i]) return i;
+ }
+ return -1;
+}
+
+// By default EventEmitters will print a warning if more than
+// 10 listeners are added to it. This is a useful default which
+// helps finding memory leaks.
+//
+// Obviously not all Emitters should be limited to 10. This function allows
+// that to be increased. Set to zero for unlimited.
+var defaultMaxListeners = 10;
+EventEmitter.prototype.setMaxListeners = function(n) {
+ if (!this._events) this._events = {};
+ this._events.maxListeners = n;
+};
+
+
+EventEmitter.prototype.emit = function(type) {
+ // If there is no 'error' event listener then throw.
+ if (type === 'error') {
+ if (!this._events || !this._events.error ||
+ (isArray(this._events.error) && !this._events.error.length))
+ {
+ if (arguments[1] instanceof Error) {
+ throw arguments[1]; // Unhandled 'error' event
+ } else {
+ throw new Error("Uncaught, unspecified 'error' event.");
+ }
+ return false;
+ }
+ }
+
+ if (!this._events) return false;
+ var handler = this._events[type];
+ if (!handler) return false;
+
+ if (typeof handler == 'function') {
+ switch (arguments.length) {
+ // fast cases
+ case 1:
+ handler.call(this);
+ break;
+ case 2:
+ handler.call(this, arguments[1]);
+ break;
+ case 3:
+ handler.call(this, arguments[1], arguments[2]);
+ break;
+ // slower
+ default:
+ var args = Array.prototype.slice.call(arguments, 1);
+ handler.apply(this, args);
+ }
+ return true;
+
+ } else if (isArray(handler)) {
+ var args = Array.prototype.slice.call(arguments, 1);
+
+ var listeners = handler.slice();
+ for (var i = 0, l = listeners.length; i < l; i++) {
+ listeners[i].apply(this, args);
+ }
+ return true;
+
+ } else {
+ return false;
+ }
+};
+
+// EventEmitter is defined in src/node_events.cc
+// EventEmitter.prototype.emit() is also defined there.
+EventEmitter.prototype.addListener = function(type, listener) {
+ if ('function' !== typeof listener) {
+ throw new Error('addListener only takes instances of Function');
+ }
+
+ if (!this._events) this._events = {};
+
+ // To avoid recursion in the case that type == "newListeners"! Before
+ // adding it to the listeners, first emit "newListeners".
+ this.emit('newListener', type, listener);
+
+ if (!this._events[type]) {
+ // Optimize the case of one listener. Don't need the extra array object.
+ this._events[type] = listener;
+ } else if (isArray(this._events[type])) {
+
+ // Check for listener leak
+ if (!this._events[type].warned) {
+ var m;
+ if (this._events.maxListeners !== undefined) {
+ m = this._events.maxListeners;
+ } else {
+ m = defaultMaxListeners;
+ }
+
+ if (m && m > 0 && this._events[type].length > m) {
+ this._events[type].warned = true;
+ console.error('(node) warning: possible EventEmitter memory ' +
+ 'leak detected. %d listeners added. ' +
+ 'Use emitter.setMaxListeners() to increase limit.',
+ this._events[type].length);
+ console.trace();
+ }
+ }
+
+ // If we've already got an array, just append.
+ this._events[type].push(listener);
+ } else {
+ // Adding the second element, need to change to array.
+ this._events[type] = [this._events[type], listener];
+ }
+
+ return this;
+};
+
+EventEmitter.prototype.on = EventEmitter.prototype.addListener;
+
+EventEmitter.prototype.once = function(type, listener) {
+ var self = this;
+ self.on(type, function g() {
+ self.removeListener(type, g);
+ listener.apply(this, arguments);
+ });
+
+ return this;
+};
+
+EventEmitter.prototype.removeListener = function(type, listener) {
+ if ('function' !== typeof listener) {
+ throw new Error('removeListener only takes instances of Function');
+ }
+
+ // does not use listeners(), so no side effect of creating _events[type]
+ if (!this._events || !this._events[type]) return this;
+
+ var list = this._events[type];
+
+ if (isArray(list)) {
+ var i = indexOf(list, listener);
+ if (i < 0) return this;
+ list.splice(i, 1);
+ if (list.length == 0)
+ delete this._events[type];
+ } else if (this._events[type] === listener) {
+ delete this._events[type];
+ }
+
+ return this;
+};
+
+EventEmitter.prototype.removeAllListeners = function(type) {
+ if (arguments.length === 0) {
+ this._events = {};
+ return this;
+ }
+
+ // does not use listeners(), so no side effect of creating _events[type]
+ if (type && this._events && this._events[type]) this._events[type] = null;
+ return this;
+};
+
+EventEmitter.prototype.listeners = function(type) {
+ if (!this._events) this._events = {};
+ if (!this._events[type]) this._events[type] = [];
+ if (!isArray(this._events[type])) {
+ this._events[type] = [this._events[type]];
+ }
+ return this._events[type];
+};
+
+})(require("__browserify_process"))
+},{"__browserify_process":7}],2:[function(require,module,exports){
+(function(){function SlowBuffer (size) {
+ this.length = size;
+};
+
+var assert = require('assert');
+
+exports.INSPECT_MAX_BYTES = 50;
+
+
+function toHex(n) {
+ if (n < 16) return '0' + n.toString(16);
+ return n.toString(16);
+}
+
+function utf8ToBytes(str) {
+ var byteArray = [];
+ for (var i = 0; i < str.length; i++)
+ if (str.charCodeAt(i) <= 0x7F)
+ byteArray.push(str.charCodeAt(i));
+ else {
+ var h = encodeURIComponent(str.charAt(i)).substr(1).split('%');
+ for (var j = 0; j < h.length; j++)
+ byteArray.push(parseInt(h[j], 16));
+ }
+
+ return byteArray;
+}
+
+function asciiToBytes(str) {
+ var byteArray = []
+ for (var i = 0; i < str.length; i++ )
+ // Node's code seems to be doing this and not & 0x7F..
+ byteArray.push( str.charCodeAt(i) & 0xFF );
+
+ return byteArray;
+}
+
+function base64ToBytes(str) {
+ return require("base64-js").toByteArray(str);
+}
+
+SlowBuffer.byteLength = function (str, encoding) {
+ switch (encoding || "utf8") {
+ case 'hex':
+ return str.length / 2;
+
+ case 'utf8':
+ case 'utf-8':
+ return utf8ToBytes(str).length;
+
+ case 'ascii':
+ case 'binary':
+ return str.length;
+
+ case 'base64':
+ return base64ToBytes(str).length;
+
+ default:
+ throw new Error('Unknown encoding');
+ }
+};
+
+function blitBuffer(src, dst, offset, length) {
+ var pos, i = 0;
+ while (i < length) {
+ if ((i+offset >= dst.length) || (i >= src.length))
+ break;
+
+ dst[i + offset] = src[i];
+ i++;
+ }
+ return i;
+}
+
+SlowBuffer.prototype.utf8Write = function (string, offset, length) {
+ var bytes, pos;
+ return SlowBuffer._charsWritten = blitBuffer(utf8ToBytes(string), this, offset, length);
+};
+
+SlowBuffer.prototype.asciiWrite = function (string, offset, length) {
+ var bytes, pos;
+ return SlowBuffer._charsWritten = blitBuffer(asciiToBytes(string), this, offset, length);
+};
+
+SlowBuffer.prototype.binaryWrite = SlowBuffer.prototype.asciiWrite;
+
+SlowBuffer.prototype.base64Write = function (string, offset, length) {
+ var bytes, pos;
+ return SlowBuffer._charsWritten = blitBuffer(base64ToBytes(string), this, offset, length);
+};
+
+SlowBuffer.prototype.base64Slice = function (start, end) {
+ var bytes = Array.prototype.slice.apply(this, arguments)
+ return require("base64-js").fromByteArray(bytes);
+}
+
+function decodeUtf8Char(str) {
+ try {
+ return decodeURIComponent(str);
+ } catch (err) {
+ return String.fromCharCode(0xFFFD); // UTF 8 invalid char
+ }
+}
+
+SlowBuffer.prototype.utf8Slice = function () {
+ var bytes = Array.prototype.slice.apply(this, arguments);
+ var res = "";
+ var tmp = "";
+ var i = 0;
+ while (i < bytes.length) {
+ if (bytes[i] <= 0x7F) {
+ res += decodeUtf8Char(tmp) + String.fromCharCode(bytes[i]);
+ tmp = "";
+ } else
+ tmp += "%" + bytes[i].toString(16);
+
+ i++;
+ }
+
+ return res + decodeUtf8Char(tmp);
+}
+
+SlowBuffer.prototype.asciiSlice = function () {
+ var bytes = Array.prototype.slice.apply(this, arguments);
+ var ret = "";
+ for (var i = 0; i < bytes.length; i++)
+ ret += String.fromCharCode(bytes[i]);
+ return ret;
+}
+
+SlowBuffer.prototype.binarySlice = SlowBuffer.prototype.asciiSlice;
+
+SlowBuffer.prototype.inspect = function() {
+ var out = [],
+ len = this.length;
+ for (var i = 0; i < len; i++) {
+ out[i] = toHex(this[i]);
+ if (i == exports.INSPECT_MAX_BYTES) {
+ out[i + 1] = '...';
+ break;
+ }
+ }
+ return '<SlowBuffer ' + out.join(' ') + '>';
+};
+
+
+SlowBuffer.prototype.hexSlice = function(start, end) {
+ var len = this.length;
+
+ if (!start || start < 0) start = 0;
+ if (!end || end < 0 || end > len) end = len;
+
+ var out = '';
+ for (var i = start; i < end; i++) {
+ out += toHex(this[i]);
+ }
+ return out;
+};
+
+
+SlowBuffer.prototype.toString = function(encoding, start, end) {
+ encoding = String(encoding || 'utf8').toLowerCase();
+ start = +start || 0;
+ if (typeof end == 'undefined') end = this.length;
+
+ // Fastpath empty strings
+ if (+end == start) {
+ return '';
+ }
+
+ switch (encoding) {
+ case 'hex':
+ return this.hexSlice(start, end);
+
+ case 'utf8':
+ case 'utf-8':
+ return this.utf8Slice(start, end);
+
+ case 'ascii':
+ return this.asciiSlice(start, end);
+
+ case 'binary':
+ return this.binarySlice(start, end);
+
+ case 'base64':
+ return this.base64Slice(start, end);
+
+ case 'ucs2':
+ case 'ucs-2':
+ return this.ucs2Slice(start, end);
+
+ default:
+ throw new Error('Unknown encoding');
+ }
+};
+
+
+SlowBuffer.prototype.hexWrite = function(string, offset, length) {
+ offset = +offset || 0;
+ var remaining = this.length - offset;
+ if (!length) {
+ length = remaining;
+ } else {
+ length = +length;
+ if (length > remaining) {
+ length = remaining;
+ }
+ }
+
+ // must be an even number of digits
+ var strLen = string.length;
+ if (strLen % 2) {
+ throw new Error('Invalid hex string');
+ }
+ if (length > strLen / 2) {
+ length = strLen / 2;
+ }
+ for (var i = 0; i < length; i++) {
+ var byte = parseInt(string.substr(i * 2, 2), 16);
+ if (isNaN(byte)) throw new Error('Invalid hex string');
+ this[offset + i] = byte;
+ }
+ SlowBuffer._charsWritten = i * 2;
+ return i;
+};
+
+
+SlowBuffer.prototype.write = function(string, offset, length, encoding) {
+ // Support both (string, offset, length, encoding)
+ // and the legacy (string, encoding, offset, length)
+ if (isFinite(offset)) {
+ if (!isFinite(length)) {
+ encoding = length;
+ length = undefined;
+ }
+ } else { // legacy
+ var swap = encoding;
+ encoding = offset;
+ offset = length;
+ length = swap;
+ }
+
+ offset = +offset || 0;
+ var remaining = this.length - offset;
+ if (!length) {
+ length = remaining;
+ } else {
+ length = +length;
+ if (length > remaining) {
+ length = remaining;
+ }
+ }
+ encoding = String(encoding || 'utf8').toLowerCase();
+
+ switch (encoding) {
+ case 'hex':
+ return this.hexWrite(string, offset, length);
+
+ case 'utf8':
+ case 'utf-8':
+ return this.utf8Write(string, offset, length);
+
+ case 'ascii':
+ return this.asciiWrite(string, offset, length);
+
+ case 'binary':
+ return this.binaryWrite(string, offset, length);
+
+ case 'base64':
+ return this.base64Write(string, offset, length);
+
+ case 'ucs2':
+ case 'ucs-2':
+ return this.ucs2Write(string, offset, length);
+
+ default:
+ throw new Error('Unknown encoding');
+ }
+};
+
+
+// slice(start, end)
+SlowBuffer.prototype.slice = function(start, end) {
+ if (end === undefined) end = this.length;
+
+ if (end > this.length) {
+ throw new Error('oob');
+ }
+ if (start > end) {
+ throw new Error('oob');
+ }
+
+ return new Buffer(this, end - start, +start);
+};
+
+SlowBuffer.prototype.copy = function(target, targetstart, sourcestart, sourceend) {
+ var temp = [];
+ for (var i=sourcestart; i<sourceend; i++) {
+ assert.ok(typeof this[i] !== 'undefined', "copying undefined buffer bytes!");
+ temp.push(this[i]);
+ }
+
+ for (var i=targetstart; i<targetstart+temp.length; i++) {
+ target[i] = temp[i-targetstart];
+ }
+};
+
+SlowBuffer.prototype.fill = function(value, start, end) {
+ if (end > this.length) {
+ throw new Error('oob');
+ }
+ if (start > end) {
+ throw new Error('oob');
+ }
+
+ for (var i = start; i < end; i++) {
+ this[i] = value;
+ }
+}
+
+function coerce(length) {
+ // Coerce length to a number (possibly NaN), round up
+ // in case it's fractional (e.g. 123.456) then do a
+ // double negate to coerce a NaN to 0. Easy, right?
+ length = ~~Math.ceil(+length);
+ return length < 0 ? 0 : length;
+}
+
+
+// Buffer
+
+function Buffer(subject, encoding, offset) {
+ if (!(this instanceof Buffer)) {
+ return new Buffer(subject, encoding, offset);
+ }
+
+ var type;
+
+ // Are we slicing?
+ if (typeof offset === 'number') {
+ this.length = coerce(encoding);
+ this.parent = subject;
+ this.offset = offset;
+ } else {
+ // Find the length
+ switch (type = typeof subject) {
+ case 'number':
+ this.length = coerce(subject);
+ break;
+
+ case 'string':
+ this.length = Buffer.byteLength(subject, encoding);
+ break;
+
+ case 'object': // Assume object is an array
+ this.length = coerce(subject.length);
+ break;
+
+ default:
+ throw new Error('First argument needs to be a number, ' +
+ 'array or string.');
+ }
+
+ if (this.length > Buffer.poolSize) {
+ // Big buffer, just alloc one.
+ this.parent = new SlowBuffer(this.length);
+ this.offset = 0;
+
+ } else {
+ // Small buffer.
+ if (!pool || pool.length - pool.used < this.length) allocPool();
+ this.parent = pool;
+ this.offset = pool.used;
+ pool.used += this.length;
+ }
+
+ // Treat array-ish objects as a byte array.
+ if (isArrayIsh(subject)) {
+ for (var i = 0; i < this.length; i++) {
+ if (subject instanceof Buffer) {
+ this.parent[i + this.offset] = subject.readUInt8(i);
+ }
+ else {
+ this.parent[i + this.offset] = subject[i];
+ }
+ }
+ } else if (type == 'string') {
+ // We are a string
+ this.length = this.write(subject, 0, encoding);
+ }
+ }
+
+}
+
+function isArrayIsh(subject) {
+ return Array.isArray(subject) || Buffer.isBuffer(subject) ||
+ subject && typeof subject === 'object' &&
+ typeof subject.length === 'number';
+}
+
+exports.SlowBuffer = SlowBuffer;
+exports.Buffer = Buffer;
+
+Buffer.poolSize = 8 * 1024;
+var pool;
+
+function allocPool() {
+ pool = new SlowBuffer(Buffer.poolSize);
+ pool.used = 0;
+}
+
+
+// Static methods
+Buffer.isBuffer = function isBuffer(b) {
+ return b instanceof Buffer || b instanceof SlowBuffer;
+};
+
+Buffer.concat = function (list, totalLength) {
+ if (!Array.isArray(list)) {
+ throw new Error("Usage: Buffer.concat(list, [totalLength])\n \
+ list should be an Array.");
+ }
+
+ if (list.length === 0) {
+ return new Buffer(0);
+ } else if (list.length === 1) {
+ return list[0];
+ }
+
+ if (typeof totalLength !== 'number') {
+ totalLength = 0;
+ for (var i = 0; i < list.length; i++) {
+ var buf = list[i];
+ totalLength += buf.length;
+ }
+ }
+
+ var buffer = new Buffer(totalLength);
+ var pos = 0;
+ for (var i = 0; i < list.length; i++) {
+ var buf = list[i];
+ buf.copy(buffer, pos);
+ pos += buf.length;
+ }
+ return buffer;
+};
+
+// Inspect
+Buffer.prototype.inspect = function inspect() {
+ var out = [],
+ len = this.length;
+
+ for (var i = 0; i < len; i++) {
+ out[i] = toHex(this.parent[i + this.offset]);
+ if (i == exports.INSPECT_MAX_BYTES) {
+ out[i + 1] = '...';
+ break;
+ }
+ }
+
+ return '<Buffer ' + out.join(' ') + '>';
+};
+
+
+Buffer.prototype.get = function get(i) {
+ if (i < 0 || i >= this.length) throw new Error('oob');
+ return this.parent[this.offset + i];
+};
+
+
+Buffer.prototype.set = function set(i, v) {
+ if (i < 0 || i >= this.length) throw new Error('oob');
+ return this.parent[this.offset + i] = v;
+};
+
+
+// write(string, offset = 0, length = buffer.length-offset, encoding = 'utf8')
+Buffer.prototype.write = function(string, offset, length, encoding) {
+ // Support both (string, offset, length, encoding)
+ // and the legacy (string, encoding, offset, length)
+ if (isFinite(offset)) {
+ if (!isFinite(length)) {
+ encoding = length;
+ length = undefined;
+ }
+ } else { // legacy
+ var swap = encoding;
+ encoding = offset;
+ offset = length;
+ length = swap;
+ }
+
+ offset = +offset || 0;
+ var remaining = this.length - offset;
+ if (!length) {
+ length = remaining;
+ } else {
+ length = +length;
+ if (length > remaining) {
+ length = remaining;
+ }
+ }
+ encoding = String(encoding || 'utf8').toLowerCase();
+
+ var ret;
+ switch (encoding) {
+ case 'hex':
+ ret = this.parent.hexWrite(string, this.offset + offset, length);
+ break;
+
+ case 'utf8':
+ case 'utf-8':
+ ret = this.parent.utf8Write(string, this.offset + offset, length);
+ break;
+
+ case 'ascii':
+ ret = this.parent.asciiWrite(string, this.offset + offset, length);
+ break;
+
+ case 'binary':
+ ret = this.parent.binaryWrite(string, this.offset + offset, length);
+ break;
+
+ case 'base64':
+ // Warning: maxLength not taken into account in base64Write
+ ret = this.parent.base64Write(string, this.offset + offset, length);
+ break;
+
+ case 'ucs2':
+ case 'ucs-2':
+ ret = this.parent.ucs2Write(string, this.offset + offset, length);
+ break;
+
+ default:
+ throw new Error('Unknown encoding');
+ }
+
+ Buffer._charsWritten = SlowBuffer._charsWritten;
+
+ return ret;
+};
+
+
+// toString(encoding, start=0, end=buffer.length)
+Buffer.prototype.toString = function(encoding, start, end) {
+ encoding = String(encoding || 'utf8').toLowerCase();
+
+ if (typeof start == 'undefined' || start < 0) {
+ start = 0;
+ } else if (start > this.length) {
+ start = this.length;
+ }
+
+ if (typeof end == 'undefined' || end > this.length) {
+ end = this.length;
+ } else if (end < 0) {
+ end = 0;
+ }
+
+ start = start + this.offset;
+ end = end + this.offset;
+
+ switch (encoding) {
+ case 'hex':
+ return this.parent.hexSlice(start, end);
+
+ case 'utf8':
+ case 'utf-8':
+ return this.parent.utf8Slice(start, end);
+
+ case 'ascii':
+ return this.parent.asciiSlice(start, end);
+
+ case 'binary':
+ return this.parent.binarySlice(start, end);
+
+ case 'base64':
+ return this.parent.base64Slice(start, end);
+
+ case 'ucs2':
+ case 'ucs-2':
+ return this.parent.ucs2Slice(start, end);
+
+ default:
+ throw new Error('Unknown encoding');
+ }
+};
+
+
+// byteLength
+Buffer.byteLength = SlowBuffer.byteLength;
+
+
+// fill(value, start=0, end=buffer.length)
+Buffer.prototype.fill = function fill(value, start, end) {
+ value || (value = 0);
+ start || (start = 0);
+ end || (end = this.length);
+
+ if (typeof value === 'string') {
+ value = value.charCodeAt(0);
+ }
+ if (!(typeof value === 'number') || isNaN(value)) {
+ throw new Error('value is not a number');
+ }
+
+ if (end < start) throw new Error('end < start');
+
+ // Fill 0 bytes; we're done
+ if (end === start) return 0;
+ if (this.length == 0) return 0;
+
+ if (start < 0 || start >= this.length) {
+ throw new Error('start out of bounds');
+ }
+
+ if (end < 0 || end > this.length) {
+ throw new Error('end out of bounds');
+ }
+
+ return this.parent.fill(value,
+ start + this.offset,
+ end + this.offset);
+};
+
+
+// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+Buffer.prototype.copy = function(target, target_start, start, end) {
+ var source = this;
+ start || (start = 0);
+ end || (end = this.length);
+ target_start || (target_start = 0);
+
+ if (end < start) throw new Error('sourceEnd < sourceStart');
+
+ // Copy 0 bytes; we're done
+ if (end === start) return 0;
+ if (target.length == 0 || source.length == 0) return 0;
+
+ if (target_start < 0 || target_start >= target.length) {
+ throw new Error('targetStart out of bounds');
+ }
+
+ if (start < 0 || start >= source.length) {
+ throw new Error('sourceStart out of bounds');
+ }
+
+ if (end < 0 || end > source.length) {
+ throw new Error('sourceEnd out of bounds');
+ }
+
+ // Are we oob?
+ if (end > this.length) {
+ end = this.length;
+ }
+
+ if (target.length - target_start < end - start) {
+ end = target.length - target_start + start;
+ }
+
+ return this.parent.copy(target.parent,
+ target_start + target.offset,
+ start + this.offset,
+ end + this.offset);
+};
+
+
+// slice(start, end)
+Buffer.prototype.slice = function(start, end) {
+ if (end === undefined) end = this.length;
+ if (end > this.length) throw new Error('oob');
+ if (start > end) throw new Error('oob');
+
+ return new Buffer(this.parent, end - start, +start + this.offset);
+};
+
+
+// Legacy methods for backwards compatibility.
+
+Buffer.prototype.utf8Slice = function(start, end) {
+ return this.toString('utf8', start, end);
+};
+
+Buffer.prototype.binarySlice = function(start, end) {
+ return this.toString('binary', start, end);
+};
+
+Buffer.prototype.asciiSlice = function(start, end) {
+ return this.toString('ascii', start, end);
+};
+
+Buffer.prototype.utf8Write = function(string, offset) {
+ return this.write(string, offset, 'utf8');
+};
+
+Buffer.prototype.binaryWrite = function(string, offset) {
+ return this.write(string, offset, 'binary');
+};
+
+Buffer.prototype.asciiWrite = function(string, offset) {
+ return this.write(string, offset, 'ascii');
+};
+
+Buffer.prototype.readUInt8 = function(offset, noAssert) {
+ var buffer = this;
+
+ if (!noAssert) {
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset < buffer.length,
+ 'Trying to read beyond buffer length');
+ }
+
+ if (offset >= buffer.length) return;
+
+ return buffer.parent[buffer.offset + offset];
+};
+
+function readUInt16(buffer, offset, isBigEndian, noAssert) {
+ var val = 0;
+
+
+ if (!noAssert) {
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset + 1 < buffer.length,
+ 'Trying to read beyond buffer length');
+ }
+
+ if (offset >= buffer.length) return 0;
+
+ if (isBigEndian) {
+ val = buffer.parent[buffer.offset + offset] << 8;
+ if (offset + 1 < buffer.length) {
+ val |= buffer.parent[buffer.offset + offset + 1];
+ }
+ } else {
+ val = buffer.parent[buffer.offset + offset];
+ if (offset + 1 < buffer.length) {
+ val |= buffer.parent[buffer.offset + offset + 1] << 8;
+ }
+ }
+
+ return val;
+}
+
+Buffer.prototype.readUInt16LE = function(offset, noAssert) {
+ return readUInt16(this, offset, false, noAssert);
+};
+
+Buffer.prototype.readUInt16BE = function(offset, noAssert) {
+ return readUInt16(this, offset, true, noAssert);
+};
+
+function readUInt32(buffer, offset, isBigEndian, noAssert) {
+ var val = 0;
+
+ if (!noAssert) {
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset + 3 < buffer.length,
+ 'Trying to read beyond buffer length');
+ }
+
+ if (offset >= buffer.length) return 0;
+
+ if (isBigEndian) {
+ if (offset + 1 < buffer.length)
+ val = buffer.parent[buffer.offset + offset + 1] << 16;
+ if (offset + 2 < buffer.length)
+ val |= buffer.parent[buffer.offset + offset + 2] << 8;
+ if (offset + 3 < buffer.length)
+ val |= buffer.parent[buffer.offset + offset + 3];
+ val = val + (buffer.parent[buffer.offset + offset] << 24 >>> 0);
+ } else {
+ if (offset + 2 < buffer.length)
+ val = buffer.parent[buffer.offset + offset + 2] << 16;
+ if (offset + 1 < buffer.length)
+ val |= buffer.parent[buffer.offset + offset + 1] << 8;
+ val |= buffer.parent[buffer.offset + offset];
+ if (offset + 3 < buffer.length)
+ val = val + (buffer.parent[buffer.offset + offset + 3] << 24 >>> 0);
+ }
+
+ return val;
+}
+
+Buffer.prototype.readUInt32LE = function(offset, noAssert) {
+ return readUInt32(this, offset, false, noAssert);
+};
+
+Buffer.prototype.readUInt32BE = function(offset, noAssert) {
+ return readUInt32(this, offset, true, noAssert);
+};
+
+
+/*
+ * Signed integer types, yay team! A reminder on how two's complement actually
+ * works. The first bit is the signed bit, i.e. tells us whether or not the
+ * number should be positive or negative. If the two's complement value is
+ * positive, then we're done, as it's equivalent to the unsigned representation.
+ *
+ * Now if the number is positive, you're pretty much done, you can just leverage
+ * the unsigned translations and return those. Unfortunately, negative numbers
+ * aren't quite that straightforward.
+ *
+ * At first glance, one might be inclined to use the traditional formula to
+ * translate binary numbers between the positive and negative values in two's
+ * complement. (Though it doesn't quite work for the most negative value)
+ * Mainly:
+ * - invert all the bits
+ * - add one to the result
+ *
+ * Of course, this doesn't quite work in Javascript. Take for example the value
+ * of -128. This could be represented in 16 bits (big-endian) as 0xff80. But of
+ * course, Javascript will do the following:
+ *
+ * > ~0xff80
+ * -65409
+ *
+ * Whoh there, Javascript, that's not quite right. But wait, according to
+ * Javascript that's perfectly correct. When Javascript ends up seeing the
+ * constant 0xff80, it has no notion that it is actually a signed number. It
+ * assumes that we've input the unsigned value 0xff80. Thus, when it does the
+ * binary negation, it casts it into a signed value, (positive 0xff80). Then
+ * when you perform binary negation on that, it turns it into a negative number.
+ *
+ * Instead, we're going to have to use the following general formula, that works
+ * in a rather Javascript friendly way. I'm glad we don't support this kind of
+ * weird numbering scheme in the kernel.
+ *
+ * (BIT-MAX - (unsigned)val + 1) * -1
+ *
+ * The astute observer, may think that this doesn't make sense for 8-bit numbers
+ * (really it isn't necessary for them). However, when you get 16-bit numbers,
+ * you do. Let's go back to our prior example and see how this will look:
+ *
+ * (0xffff - 0xff80 + 1) * -1
+ * (0x007f + 1) * -1
+ * (0x0080) * -1
+ */
+Buffer.prototype.readInt8 = function(offset, noAssert) {
+ var buffer = this;
+ var neg;
+
+ if (!noAssert) {
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset < buffer.length,
+ 'Trying to read beyond buffer length');
+ }
+
+ if (offset >= buffer.length) return;
+
+ neg = buffer.parent[buffer.offset + offset] & 0x80;
+ if (!neg) {
+ return (buffer.parent[buffer.offset + offset]);
+ }
+
+ return ((0xff - buffer.parent[buffer.offset + offset] + 1) * -1);
+};
+
+function readInt16(buffer, offset, isBigEndian, noAssert) {
+ var neg, val;
+
+ if (!noAssert) {
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset + 1 < buffer.length,
+ 'Trying to read beyond buffer length');
+ }
+
+ val = readUInt16(buffer, offset, isBigEndian, noAssert);
+ neg = val & 0x8000;
+ if (!neg) {
+ return val;
+ }
+
+ return (0xffff - val + 1) * -1;
+}
+
+Buffer.prototype.readInt16LE = function(offset, noAssert) {
+ return readInt16(this, offset, false, noAssert);
+};
+
+Buffer.prototype.readInt16BE = function(offset, noAssert) {
+ return readInt16(this, offset, true, noAssert);
+};
+
+function readInt32(buffer, offset, isBigEndian, noAssert) {
+ var neg, val;
+
+ if (!noAssert) {
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset + 3 < buffer.length,
+ 'Trying to read beyond buffer length');
+ }
+
+ val = readUInt32(buffer, offset, isBigEndian, noAssert);
+ neg = val & 0x80000000;
+ if (!neg) {
+ return (val);
+ }
+
+ return (0xffffffff - val + 1) * -1;
+}
+
+Buffer.prototype.readInt32LE = function(offset, noAssert) {
+ return readInt32(this, offset, false, noAssert);
+};
+
+Buffer.prototype.readInt32BE = function(offset, noAssert) {
+ return readInt32(this, offset, true, noAssert);
+};
+
+function readFloat(buffer, offset, isBigEndian, noAssert) {
+ if (!noAssert) {
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset + 3 < buffer.length,
+ 'Trying to read beyond buffer length');
+ }
+
+ return require('./buffer_ieee754').readIEEE754(buffer, offset, isBigEndian,
+ 23, 4);
+}
+
+Buffer.prototype.readFloatLE = function(offset, noAssert) {
+ return readFloat(this, offset, false, noAssert);
+};
+
+Buffer.prototype.readFloatBE = function(offset, noAssert) {
+ return readFloat(this, offset, true, noAssert);
+};
+
+function readDouble(buffer, offset, isBigEndian, noAssert) {
+ if (!noAssert) {
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset + 7 < buffer.length,
+ 'Trying to read beyond buffer length');
+ }
+
+ return require('./buffer_ieee754').readIEEE754(buffer, offset, isBigEndian,
+ 52, 8);
+}
+
+Buffer.prototype.readDoubleLE = function(offset, noAssert) {
+ return readDouble(this, offset, false, noAssert);
+};
+
+Buffer.prototype.readDoubleBE = function(offset, noAssert) {
+ return readDouble(this, offset, true, noAssert);
+};
+
+
+/*
+ * We have to make sure that the value is a valid integer. This means that it is
+ * non-negative. It has no fractional component and that it does not exceed the
+ * maximum allowed value.
+ *
+ * value The number to check for validity
+ *
+ * max The maximum value
+ */
+function verifuint(value, max) {
+ assert.ok(typeof (value) == 'number',
+ 'cannot write a non-number as a number');
+
+ assert.ok(value >= 0,
+ 'specified a negative value for writing an unsigned value');
+
+ assert.ok(value <= max, 'value is larger than maximum value for type');
+
+ assert.ok(Math.floor(value) === value, 'value has a fractional component');
+}
+
+Buffer.prototype.writeUInt8 = function(value, offset, noAssert) {
+ var buffer = this;
+
+ if (!noAssert) {
+ assert.ok(value !== undefined && value !== null,
+ 'missing value');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset < buffer.length,
+ 'trying to write beyond buffer length');
+
+ verifuint(value, 0xff);
+ }
+
+ if (offset < buffer.length) {
+ buffer.parent[buffer.offset + offset] = value;
+ }
+};
+
+function writeUInt16(buffer, value, offset, isBigEndian, noAssert) {
+ if (!noAssert) {
+ assert.ok(value !== undefined && value !== null,
+ 'missing value');
+
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset + 1 < buffer.length,
+ 'trying to write beyond buffer length');
+
+ verifuint(value, 0xffff);
+ }
+
+ for (var i = 0; i < Math.min(buffer.length - offset, 2); i++) {
+ buffer.parent[buffer.offset + offset + i] =
+ (value & (0xff << (8 * (isBigEndian ? 1 - i : i)))) >>>
+ (isBigEndian ? 1 - i : i) * 8;
+ }
+
+}
+
+Buffer.prototype.writeUInt16LE = function(value, offset, noAssert) {
+ writeUInt16(this, value, offset, false, noAssert);
+};
+
+Buffer.prototype.writeUInt16BE = function(value, offset, noAssert) {
+ writeUInt16(this, value, offset, true, noAssert);
+};
+
+function writeUInt32(buffer, value, offset, isBigEndian, noAssert) {
+ if (!noAssert) {
+ assert.ok(value !== undefined && value !== null,
+ 'missing value');
+
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset + 3 < buffer.length,
+ 'trying to write beyond buffer length');
+
+ verifuint(value, 0xffffffff);
+ }
+
+ for (var i = 0; i < Math.min(buffer.length - offset, 4); i++) {
+ buffer.parent[buffer.offset + offset + i] =
+ (value >>> (isBigEndian ? 3 - i : i) * 8) & 0xff;
+ }
+}
+
+Buffer.prototype.writeUInt32LE = function(value, offset, noAssert) {
+ writeUInt32(this, value, offset, false, noAssert);
+};
+
+Buffer.prototype.writeUInt32BE = function(value, offset, noAssert) {
+ writeUInt32(this, value, offset, true, noAssert);
+};
+
+
+/*
+ * We now move onto our friends in the signed number category. Unlike unsigned
+ * numbers, we're going to have to worry a bit more about how we put values into
+ * arrays. Since we are only worrying about signed 32-bit values, we're in
+ * slightly better shape. Unfortunately, we really can't do our favorite binary
+ * & in this system. It really seems to do the wrong thing. For example:
+ *
+ * > -32 & 0xff
+ * 224
+ *
+ * What's happening above is really: 0xe0 & 0xff = 0xe0. However, the results of
+ * this aren't treated as a signed number. Ultimately a bad thing.
+ *
+ * What we're going to want to do is basically create the unsigned equivalent of
+ * our representation and pass that off to the wuint* functions. To do that
+ * we're going to do the following:
+ *
+ * - if the value is positive
+ * we can pass it directly off to the equivalent wuint
+ * - if the value is negative
+ * we do the following computation:
+ * mb + val + 1, where
+ * mb is the maximum unsigned value in that byte size
+ * val is the Javascript negative integer
+ *
+ *
+ * As a concrete value, take -128. In signed 16 bits this would be 0xff80. If
+ * you do out the computations:
+ *
+ * 0xffff - 128 + 1
+ * 0xffff - 127
+ * 0xff80
+ *
+ * You can then encode this value as the signed version. This is really rather
+ * hacky, but it should work and get the job done which is our goal here.
+ */
+
+/*
+ * A series of checks to make sure we actually have a signed 32-bit number
+ */
+function verifsint(value, max, min) {
+ assert.ok(typeof (value) == 'number',
+ 'cannot write a non-number as a number');
+
+ assert.ok(value <= max, 'value larger than maximum allowed value');
+
+ assert.ok(value >= min, 'value smaller than minimum allowed value');
+
+ assert.ok(Math.floor(value) === value, 'value has a fractional component');
+}
+
+function verifIEEE754(value, max, min) {
+ assert.ok(typeof (value) == 'number',
+ 'cannot write a non-number as a number');
+
+ assert.ok(value <= max, 'value larger than maximum allowed value');
+
+ assert.ok(value >= min, 'value smaller than minimum allowed value');
+}
+
+Buffer.prototype.writeInt8 = function(value, offset, noAssert) {
+ var buffer = this;
+
+ if (!noAssert) {
+ assert.ok(value !== undefined && value !== null,
+ 'missing value');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset < buffer.length,
+ 'Trying to write beyond buffer length');
+
+ verifsint(value, 0x7f, -0x80);
+ }
+
+ if (value >= 0) {
+ buffer.writeUInt8(value, offset, noAssert);
+ } else {
+ buffer.writeUInt8(0xff + value + 1, offset, noAssert);
+ }
+};
+
+function writeInt16(buffer, value, offset, isBigEndian, noAssert) {
+ if (!noAssert) {
+ assert.ok(value !== undefined && value !== null,
+ 'missing value');
+
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset + 1 < buffer.length,
+ 'Trying to write beyond buffer length');
+
+ verifsint(value, 0x7fff, -0x8000);
+ }
+
+ if (value >= 0) {
+ writeUInt16(buffer, value, offset, isBigEndian, noAssert);
+ } else {
+ writeUInt16(buffer, 0xffff + value + 1, offset, isBigEndian, noAssert);
+ }
+}
+
+Buffer.prototype.writeInt16LE = function(value, offset, noAssert) {
+ writeInt16(this, value, offset, false, noAssert);
+};
+
+Buffer.prototype.writeInt16BE = function(value, offset, noAssert) {
+ writeInt16(this, value, offset, true, noAssert);
+};
+
+function writeInt32(buffer, value, offset, isBigEndian, noAssert) {
+ if (!noAssert) {
+ assert.ok(value !== undefined && value !== null,
+ 'missing value');
+
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset + 3 < buffer.length,
+ 'Trying to write beyond buffer length');
+
+ verifsint(value, 0x7fffffff, -0x80000000);
+ }
+
+ if (value >= 0) {
+ writeUInt32(buffer, value, offset, isBigEndian, noAssert);
+ } else {
+ writeUInt32(buffer, 0xffffffff + value + 1, offset, isBigEndian, noAssert);
+ }
+}
+
+Buffer.prototype.writeInt32LE = function(value, offset, noAssert) {
+ writeInt32(this, value, offset, false, noAssert);
+};
+
+Buffer.prototype.writeInt32BE = function(value, offset, noAssert) {
+ writeInt32(this, value, offset, true, noAssert);
+};
+
+function writeFloat(buffer, value, offset, isBigEndian, noAssert) {
+ if (!noAssert) {
+ assert.ok(value !== undefined && value !== null,
+ 'missing value');
+
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset + 3 < buffer.length,
+ 'Trying to write beyond buffer length');
+
+ verifIEEE754(value, 3.4028234663852886e+38, -3.4028234663852886e+38);
+ }
+
+ require('./buffer_ieee754').writeIEEE754(buffer, value, offset, isBigEndian,
+ 23, 4);
+}
+
+Buffer.prototype.writeFloatLE = function(value, offset, noAssert) {
+ writeFloat(this, value, offset, false, noAssert);
+};
+
+Buffer.prototype.writeFloatBE = function(value, offset, noAssert) {
+ writeFloat(this, value, offset, true, noAssert);
+};
+
+function writeDouble(buffer, value, offset, isBigEndian, noAssert) {
+ if (!noAssert) {
+ assert.ok(value !== undefined && value !== null,
+ 'missing value');
+
+ assert.ok(typeof (isBigEndian) === 'boolean',
+ 'missing or invalid endian');
+
+ assert.ok(offset !== undefined && offset !== null,
+ 'missing offset');
+
+ assert.ok(offset + 7 < buffer.length,
+ 'Trying to write beyond buffer length');
+
+ verifIEEE754(value, 1.7976931348623157E+308, -1.7976931348623157E+308);
+ }
+
+ require('./buffer_ieee754').writeIEEE754(buffer, value, offset, isBigEndian,
+ 52, 8);
+}
+
+Buffer.prototype.writeDoubleLE = function(value, offset, noAssert) {
+ writeDouble(this, value, offset, false, noAssert);
+};
+
+Buffer.prototype.writeDoubleBE = function(value, offset, noAssert) {
+ writeDouble(this, value, offset, true, noAssert);
+};
+
+SlowBuffer.prototype.readUInt8 = Buffer.prototype.readUInt8;
+SlowBuffer.prototype.readUInt16LE = Buffer.prototype.readUInt16LE;
+SlowBuffer.prototype.readUInt16BE = Buffer.prototype.readUInt16BE;
+SlowBuffer.prototype.readUInt32LE = Buffer.prototype.readUInt32LE;
+SlowBuffer.prototype.readUInt32BE = Buffer.prototype.readUInt32BE;
+SlowBuffer.prototype.readInt8 = Buffer.prototype.readInt8;
+SlowBuffer.prototype.readInt16LE = Buffer.prototype.readInt16LE;
+SlowBuffer.prototype.readInt16BE = Buffer.prototype.readInt16BE;
+SlowBuffer.prototype.readInt32LE = Buffer.prototype.readInt32LE;
+SlowBuffer.prototype.readInt32BE = Buffer.prototype.readInt32BE;
+SlowBuffer.prototype.readFloatLE = Buffer.prototype.readFloatLE;
+SlowBuffer.prototype.readFloatBE = Buffer.prototype.readFloatBE;
+SlowBuffer.prototype.readDoubleLE = Buffer.prototype.readDoubleLE;
+SlowBuffer.prototype.readDoubleBE = Buffer.prototype.readDoubleBE;
+SlowBuffer.prototype.writeUInt8 = Buffer.prototype.writeUInt8;
+SlowBuffer.prototype.writeUInt16LE = Buffer.prototype.writeUInt16LE;
+SlowBuffer.prototype.writeUInt16BE = Buffer.prototype.writeUInt16BE;
+SlowBuffer.prototype.writeUInt32LE = Buffer.prototype.writeUInt32LE;
+SlowBuffer.prototype.writeUInt32BE = Buffer.prototype.writeUInt32BE;
+SlowBuffer.prototype.writeInt8 = Buffer.prototype.writeInt8;
+SlowBuffer.prototype.writeInt16LE = Buffer.prototype.writeInt16LE;
+SlowBuffer.prototype.writeInt16BE = Buffer.prototype.writeInt16BE;
+SlowBuffer.prototype.writeInt32LE = Buffer.prototype.writeInt32LE;
+SlowBuffer.prototype.writeInt32BE = Buffer.prototype.writeInt32BE;
+SlowBuffer.prototype.writeFloatLE = Buffer.prototype.writeFloatLE;
+SlowBuffer.prototype.writeFloatBE = Buffer.prototype.writeFloatBE;
+SlowBuffer.prototype.writeDoubleLE = Buffer.prototype.writeDoubleLE;
+SlowBuffer.prototype.writeDoubleBE = Buffer.prototype.writeDoubleBE;
+
+})()
+},{"assert":3,"./buffer_ieee754":6,"base64-js":8}],8:[function(require,module,exports){
+(function (exports) {
+ 'use strict';
+
+ var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+
+ function b64ToByteArray(b64) {
+ var i, j, l, tmp, placeHolders, arr;
+
+ if (b64.length % 4 > 0) {
+ throw 'Invalid string. Length must be a multiple of 4';
+ }
+
+ // the number of equal signs (place holders)
+ // if there are two placeholders, than the two characters before it
+ // represent one byte
+ // if there is only one, then the three characters before it represent 2 bytes
+ // this is just a cheap hack to not do indexOf twice
+ placeHolders = b64.indexOf('=');
+ placeHolders = placeHolders > 0 ? b64.length - placeHolders : 0;
+
+ // base64 is 4/3 + up to two characters of the original data
+ arr = [];//new Uint8Array(b64.length * 3 / 4 - placeHolders);
+
+ // if there are placeholders, only get up to the last complete 4 chars
+ l = placeHolders > 0 ? b64.length - 4 : b64.length;
+
+ for (i = 0, j = 0; i < l; i += 4, j += 3) {
+ tmp = (lookup.indexOf(b64[i]) << 18) | (lookup.indexOf(b64[i + 1]) << 12) | (lookup.indexOf(b64[i + 2]) << 6) | lookup.indexOf(b64[i + 3]);
+ arr.push((tmp & 0xFF0000) >> 16);
+ arr.push((tmp & 0xFF00) >> 8);
+ arr.push(tmp & 0xFF);
+ }
+
+ if (placeHolders === 2) {
+ tmp = (lookup.indexOf(b64[i]) << 2) | (lookup.indexOf(b64[i + 1]) >> 4);
+ arr.push(tmp & 0xFF);
+ } else if (placeHolders === 1) {
+ tmp = (lookup.indexOf(b64[i]) << 10) | (lookup.indexOf(b64[i + 1]) << 4) | (lookup.indexOf(b64[i + 2]) >> 2);
+ arr.push((tmp >> 8) & 0xFF);
+ arr.push(tmp & 0xFF);
+ }
+
+ return arr;
+ }
+
+ function uint8ToBase64(uint8) {
+ var i,
+ extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
+ output = "",
+ temp, length;
+
+ function tripletToBase64 (num) {
+ return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F];
+ };
+
+ // go through the array every three bytes, we'll deal with trailing stuff later
+ for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
+ temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2]);
+ output += tripletToBase64(temp);
+ }
+
+ // pad the end with zeros, but make sure to not forget the extra bytes
+ switch (extraBytes) {
+ case 1:
+ temp = uint8[uint8.length - 1];
+ output += lookup[temp >> 2];
+ output += lookup[(temp << 4) & 0x3F];
+ output += '==';
+ break;
+ case 2:
+ temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1]);
+ output += lookup[temp >> 10];
+ output += lookup[(temp >> 4) & 0x3F];
+ output += lookup[(temp << 2) & 0x3F];
+ output += '=';
+ break;
+ }
+
+ return output;
+ }
+
+ module.exports.toByteArray = b64ToByteArray;
+ module.exports.fromByteArray = uint8ToBase64;
+}());
+
+},{}]},{},[1])
+; \ No newline at end of file