1498 lines
48 KiB
JavaScript
1498 lines
48 KiB
JavaScript
require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
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/*
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This file is part of ethereum.js.
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ethereum.js is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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|
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ethereum.js is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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|
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You should have received a copy of the GNU Lesser General Public License
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along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file abi.js
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* @authors:
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* Marek Kotewicz <marek@ethdev.com>
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* Gav Wood <g@ethdev.com>
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* @date 2014
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*/
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// TODO: is these line is supposed to be here?
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if ("build" !== 'build') {/*
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var BigNumber = require('bignumber.js'); // jshint ignore:line
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*/}
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var web3 = require('./web3'); // jshint ignore:line
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BigNumber.config({ ROUNDING_MODE: BigNumber.ROUND_DOWN });
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var ETH_PADDING = 32;
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/// Finds first index of array element matching pattern
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/// @param array
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/// @param callback pattern
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/// @returns index of element
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var findIndex = function (array, callback) {
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var end = false;
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var i = 0;
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for (; i < array.length && !end; i++) {
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end = callback(array[i]);
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}
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return end ? i - 1 : -1;
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};
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/// @returns a function that is used as a pattern for 'findIndex'
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var findMethodIndex = function (json, methodName) {
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return findIndex(json, function (method) {
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return method.name === methodName;
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});
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};
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/// @param string string to be padded
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/// @param number of characters that result string should have
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/// @param sign, by default 0
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/// @returns right aligned string
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var padLeft = function (string, chars, sign) {
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return new Array(chars - string.length + 1).join(sign ? sign : "0") + string;
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};
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/// @param expected type prefix (string)
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/// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false
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var prefixedType = function (prefix) {
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return function (type) {
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return type.indexOf(prefix) === 0;
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};
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};
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/// @param expected type name (string)
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/// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false
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var namedType = function (name) {
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return function (type) {
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return name === type;
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};
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};
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var arrayType = function (type) {
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return type.slice(-2) === '[]';
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};
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/// Formats input value to byte representation of int
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/// If value is negative, return it's two's complement
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/// If the value is floating point, round it down
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/// @returns right-aligned byte representation of int
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var formatInputInt = function (value) {
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var padding = ETH_PADDING * 2;
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if (value instanceof BigNumber || typeof value === 'number') {
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if (typeof value === 'number')
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value = new BigNumber(value);
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value = value.round();
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if (value.lessThan(0))
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value = new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16).plus(value).plus(1);
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value = value.toString(16);
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}
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else if (value.indexOf('0x') === 0)
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value = value.substr(2);
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else if (typeof value === 'string')
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value = formatInputInt(new BigNumber(value));
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else
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value = (+value).toString(16);
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return padLeft(value, padding);
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};
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/// Formats input value to byte representation of string
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/// @returns left-algined byte representation of string
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var formatInputString = function (value) {
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return web3.fromAscii(value, ETH_PADDING).substr(2);
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};
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/// Formats input value to byte representation of bool
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/// @returns right-aligned byte representation bool
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var formatInputBool = function (value) {
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return '000000000000000000000000000000000000000000000000000000000000000' + (value ? '1' : '0');
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};
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/// Formats input value to byte representation of real
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/// Values are multiplied by 2^m and encoded as integers
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/// @returns byte representation of real
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var formatInputReal = function (value) {
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return formatInputInt(new BigNumber(value).times(new BigNumber(2).pow(128)));
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};
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var dynamicTypeBytes = function (type, value) {
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// TODO: decide what to do with array of strings
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if (arrayType(type) || prefixedType('string')(type))
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return formatInputInt(value.length);
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return "";
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};
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/// Setups input formatters for solidity types
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/// @returns an array of input formatters
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var setupInputTypes = function () {
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return [
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{ type: prefixedType('uint'), format: formatInputInt },
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{ type: prefixedType('int'), format: formatInputInt },
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{ type: prefixedType('hash'), format: formatInputInt },
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{ type: prefixedType('string'), format: formatInputString },
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{ type: prefixedType('real'), format: formatInputReal },
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{ type: prefixedType('ureal'), format: formatInputReal },
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{ type: namedType('address'), format: formatInputInt },
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{ type: namedType('bool'), format: formatInputBool }
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];
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};
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var inputTypes = setupInputTypes();
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/// Formats input params to bytes
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/// @param contract json abi
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/// @param name of the method that we want to use
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/// @param array of params that will be formatted to bytes
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/// @returns bytes representation of input params
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var toAbiInput = function (json, methodName, params) {
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var bytes = "";
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var index = findMethodIndex(json, methodName);
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if (index === -1) {
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return;
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}
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var method = json[index];
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var padding = ETH_PADDING * 2;
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/// first we iterate in search for dynamic
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method.inputs.forEach(function (input, index) {
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bytes += dynamicTypeBytes(input.type, params[index]);
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});
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method.inputs.forEach(function (input, i) {
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var typeMatch = false;
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for (var j = 0; j < inputTypes.length && !typeMatch; j++) {
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typeMatch = inputTypes[j].type(method.inputs[i].type, params[i]);
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}
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if (!typeMatch) {
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console.error('input parser does not support type: ' + method.inputs[i].type);
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}
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var formatter = inputTypes[j - 1].format;
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var toAppend = "";
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if (arrayType(method.inputs[i].type))
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toAppend = params[i].reduce(function (acc, curr) {
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return acc + formatter(curr);
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}, "");
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else
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toAppend = formatter(params[i]);
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bytes += toAppend;
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});
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return bytes;
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};
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/// Formats input right-aligned input bytes to int
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/// @returns right-aligned input bytes formatted to int
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var formatOutputInt = function (value) {
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// check if it's negative number
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// it it is, return two's complement
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var firstBit = new BigNumber(value.substr(0, 1), 16).toString(2).substr(0, 1);
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if (firstBit === '1') {
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return new BigNumber(value, 16).minus(new BigNumber('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16)).minus(1);
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}
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return new BigNumber(value, 16);
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};
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/// Formats big right-aligned input bytes to uint
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/// @returns right-aligned input bytes formatted to uint
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var formatOutputUInt = function (value) {
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return new BigNumber(value, 16);
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};
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/// @returns right-aligned input bytes formatted to hex
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var formatOutputHash = function (value) {
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return "0x" + value;
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};
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/// @returns right-aligned input bytes formatted to bool
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var formatOutputBool = function (value) {
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return value === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false;
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};
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/// @returns left-aligned input bytes formatted to ascii string
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var formatOutputString = function (value) {
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return web3.toAscii(value);
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};
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/// @returns right-aligned input bytes formatted to address
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var formatOutputAddress = function (value) {
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return "0x" + value.slice(value.length - 40, value.length);
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};
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var dynamicBytesLength = function (type) {
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if (arrayType(type) || prefixedType('string')(type))
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return ETH_PADDING * 2;
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return 0;
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};
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/// Setups output formaters for solidity types
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/// @returns an array of output formatters
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var setupOutputTypes = function () {
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return [
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{ type: prefixedType('uint'), format: formatOutputUInt },
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{ type: prefixedType('int'), format: formatOutputInt },
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{ type: prefixedType('hash'), format: formatOutputHash },
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{ type: prefixedType('string'), format: formatOutputString },
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{ type: prefixedType('real'), format: formatOutputInt },
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{ type: prefixedType('ureal'), format: formatOutputInt },
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{ type: namedType('address'), format: formatOutputAddress },
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{ type: namedType('bool'), format: formatOutputBool }
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];
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};
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var outputTypes = setupOutputTypes();
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/// Formats output bytes back to param list
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/// @param contract json abi
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/// @param name of the method that we want to use
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/// @param bytes representtion of output
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/// @returns array of output params
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var fromAbiOutput = function (json, methodName, output) {
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var index = findMethodIndex(json, methodName);
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if (index === -1) {
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return;
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}
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output = output.slice(2);
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var result = [];
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var method = json[index];
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var padding = ETH_PADDING * 2;
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var dynamicPartLength = method.outputs.reduce(function (acc, curr) {
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return acc + dynamicBytesLength(curr.type);
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}, 0);
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var dynamicPart = output.slice(0, dynamicPartLength);
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output = output.slice(dynamicPartLength);
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method.outputs.forEach(function (out, i) {
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var typeMatch = false;
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for (var j = 0; j < outputTypes.length && !typeMatch; j++) {
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typeMatch = outputTypes[j].type(method.outputs[i].type);
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}
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if (!typeMatch) {
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console.error('output parser does not support type: ' + method.outputs[i].type);
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}
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var formatter = outputTypes[j - 1].format;
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if (arrayType(method.outputs[i].type)) {
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var size = formatOutputUInt(dynamicPart.slice(0, padding));
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dynamicPart = dynamicPart.slice(padding);
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var array = [];
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for (var k = 0; k < size; k++) {
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array.push(formatter(output.slice(0, padding)));
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output = output.slice(padding);
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}
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result.push(array);
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}
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else if (prefixedType('string')(method.outputs[i].type)) {
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dynamicPart = dynamicPart.slice(padding);
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result.push(formatter(output.slice(0, padding)));
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output = output.slice(padding);
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} else {
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result.push(formatter(output.slice(0, padding)));
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output = output.slice(padding);
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}
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});
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return result;
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};
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/// @param json abi for contract
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/// @returns input parser object for given json abi
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var inputParser = function (json) {
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var parser = {};
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json.forEach(function (method) {
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parser[method.name] = function () {
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var params = Array.prototype.slice.call(arguments);
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return toAbiInput(json, method.name, params);
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};
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});
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return parser;
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};
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/// @param json abi for contract
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/// @returns output parser for given json abi
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var outputParser = function (json) {
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var parser = {};
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json.forEach(function (method) {
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parser[method.name] = function (output) {
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return fromAbiOutput(json, method.name, output);
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};
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});
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return parser;
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};
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/// @param json abi for contract
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/// @param method name for which we want to get method signature
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/// @returns (promise) contract method signature for method with given name
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var methodSignature = function (json, name) {
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var method = json[findMethodIndex(json, name)];
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var result = name + '(';
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var inputTypes = method.inputs.map(function (inp) {
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return inp.type;
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});
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result += inputTypes.join(',');
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result += ')';
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return web3.sha3(web3.fromAscii(result));
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};
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module.exports = {
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inputParser: inputParser,
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outputParser: outputParser,
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methodSignature: methodSignature
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};
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},{"./web3":8}],2:[function(require,module,exports){
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/*
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|
This file is part of ethereum.js.
|
|
|
|
ethereum.js is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ethereum.js is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
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/** @file autoprovider.js
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|
* @authors:
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* Marek Kotewicz <marek@ethdev.com>
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|
* Marian Oancea <marian@ethdev.com>
|
|
* @date 2014
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|
*/
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|
|
|
/*
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|
* @brief if qt object is available, uses QtProvider,
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* if not tries to connect over websockets
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|
* if it fails, it uses HttpRpcProvider
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|
*/
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|
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var web3 = require('./web3'); // jshint ignore:line
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|
if ("build" !== 'build') {/*
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|
var WebSocket = require('ws'); // jshint ignore:line
|
|
*/}
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|
|
|
/**
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|
* AutoProvider object prototype is implementing 'provider protocol'
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* Automatically tries to setup correct provider(Qt, WebSockets or HttpRpc)
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* First it checkes if we are ethereum browser (if navigator.qt object is available)
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|
* if yes, we are using QtProvider
|
|
* if no, we check if it is possible to establish websockets connection with ethereum (ws://localhost:40404/eth is default)
|
|
* if it's not possible, we are using httprpc provider (http://localhost:8080)
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|
* The constructor allows you to specify uris on which we are trying to connect over http or websockets
|
|
* You can do that by passing objects with fields httrpc and websockets
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|
*/
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|
var AutoProvider = function (userOptions) {
|
|
if (web3.haveProvider()) {
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return;
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|
}
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|
|
|
// before we determine what provider we are, we have to cache request
|
|
this.sendQueue = [];
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|
this.onmessageQueue = [];
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|
|
|
if (navigator.qt) {
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|
this.provider = new web3.providers.QtProvider();
|
|
return;
|
|
}
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|
|
|
userOptions = userOptions || {};
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|
var options = {
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|
httprpc: userOptions.httprpc || 'http://localhost:8080',
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|
websockets: userOptions.websockets || 'ws://localhost:40404/eth'
|
|
};
|
|
|
|
var self = this;
|
|
var closeWithSuccess = function (success) {
|
|
ws.close();
|
|
if (success) {
|
|
self.provider = new web3.providers.WebSocketProvider(options.websockets);
|
|
} else {
|
|
self.provider = new web3.providers.HttpRpcProvider(options.httprpc);
|
|
self.poll = self.provider.poll.bind(self.provider);
|
|
}
|
|
self.sendQueue.forEach(function (payload) {
|
|
self.provider.send(payload);
|
|
});
|
|
self.onmessageQueue.forEach(function (handler) {
|
|
self.provider.onmessage = handler;
|
|
});
|
|
};
|
|
|
|
var ws = new WebSocket(options.websockets);
|
|
|
|
ws.onopen = function() {
|
|
closeWithSuccess(true);
|
|
};
|
|
|
|
ws.onerror = function() {
|
|
closeWithSuccess(false);
|
|
};
|
|
};
|
|
|
|
/// Sends message forward to the provider, that is being used
|
|
/// if provider is not yet set, enqueues the message
|
|
AutoProvider.prototype.send = function (payload) {
|
|
if (this.provider) {
|
|
this.provider.send(payload);
|
|
return;
|
|
}
|
|
this.sendQueue.push(payload);
|
|
};
|
|
|
|
/// On incoming message sends the message to the provider that is currently being used
|
|
Object.defineProperty(AutoProvider.prototype, 'onmessage', {
|
|
set: function (handler) {
|
|
if (this.provider) {
|
|
this.provider.onmessage = handler;
|
|
return;
|
|
}
|
|
this.onmessageQueue.push(handler);
|
|
}
|
|
});
|
|
|
|
module.exports = AutoProvider;
|
|
|
|
},{"./web3":8}],3:[function(require,module,exports){
|
|
/*
|
|
This file is part of ethereum.js.
|
|
|
|
ethereum.js is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ethereum.js is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/** @file contract.js
|
|
* @authors:
|
|
* Marek Kotewicz <marek@ethdev.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
var web3 = require('./web3'); // jshint ignore:line
|
|
var abi = require('./abi');
|
|
|
|
/// method signature length in bytes
|
|
var ETH_METHOD_SIGNATURE_LENGTH = 4;
|
|
|
|
/**
|
|
* This method should be called when we want to call / transact some solidity method from javascript
|
|
* it returns an object which has same methods available as solidity contract description
|
|
* usage example:
|
|
*
|
|
* var abi = [{
|
|
* name: 'myMethod',
|
|
* inputs: [{ name: 'a', type: 'string' }],
|
|
* outputs: [{name: 'd', type: 'string' }]
|
|
* }]; // contract abi
|
|
*
|
|
* var myContract = web3.eth.contract('0x0123123121', abi); // creation of contract object
|
|
*
|
|
* myContract.myMethod('this is test string param for call').call(); // myMethod call
|
|
* myContract.myMethod('this is test string param for transact').transact() // myMethod transact
|
|
*
|
|
* @param address - address of the contract, which should be called
|
|
* @param desc - abi json description of the contract, which is being created
|
|
* @returns contract object
|
|
*/
|
|
var contract = function (address, desc) {
|
|
var inputParser = abi.inputParser(desc);
|
|
var outputParser = abi.outputParser(desc);
|
|
|
|
var contract = {};
|
|
|
|
desc.forEach(function (method) {
|
|
contract[method.name] = function () {
|
|
var params = Array.prototype.slice.call(arguments);
|
|
var parsed = inputParser[method.name].apply(null, params);
|
|
|
|
var onSuccess = function (result) {
|
|
return outputParser[method.name](result);
|
|
};
|
|
|
|
return {
|
|
call: function (extra) {
|
|
extra = extra || {};
|
|
extra.to = address;
|
|
return abi.methodSignature(desc, method.name).then(function (signature) {
|
|
extra.data = signature.slice(0, 2 + ETH_METHOD_SIGNATURE_LENGTH * 2) + parsed;
|
|
return web3.eth.call(extra).then(onSuccess);
|
|
});
|
|
},
|
|
transact: function (extra) {
|
|
extra = extra || {};
|
|
extra.to = address;
|
|
return abi.methodSignature(desc, method.name).then(function (signature) {
|
|
extra.data = signature.slice(0, 2 + ETH_METHOD_SIGNATURE_LENGTH * 2) + parsed;
|
|
return web3.eth.transact(extra).then(onSuccess);
|
|
});
|
|
}
|
|
};
|
|
};
|
|
});
|
|
|
|
return contract;
|
|
};
|
|
|
|
module.exports = contract;
|
|
|
|
|
|
},{"./abi":1,"./web3":8}],4:[function(require,module,exports){
|
|
/*
|
|
This file is part of ethereum.js.
|
|
|
|
ethereum.js is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ethereum.js is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/** @file filter.js
|
|
* @authors:
|
|
* Jeffrey Wilcke <jeff@ethdev.com>
|
|
* Marek Kotewicz <marek@ethdev.com>
|
|
* Marian Oancea <marian@ethdev.com>
|
|
* Gav Wood <g@ethdev.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
var web3 = require('./web3'); // jshint ignore:line
|
|
|
|
/// should be used when we want to watch something
|
|
/// it's using inner polling mechanism and is notified about changes
|
|
var Filter = function(options, impl) {
|
|
this.impl = impl;
|
|
this.callbacks = [];
|
|
|
|
var self = this;
|
|
this.promise = impl.newFilter(options);
|
|
this.promise.then(function (id) {
|
|
self.id = id;
|
|
web3.on(impl.changed, id, self.trigger.bind(self));
|
|
web3.provider.startPolling({call: impl.changed, args: [id]}, id);
|
|
});
|
|
};
|
|
|
|
/// alias for changed*
|
|
Filter.prototype.arrived = function(callback) {
|
|
this.changed(callback);
|
|
};
|
|
|
|
/// gets called when there is new eth/shh message
|
|
Filter.prototype.changed = function(callback) {
|
|
var self = this;
|
|
this.promise.then(function(id) {
|
|
self.callbacks.push(callback);
|
|
});
|
|
};
|
|
|
|
/// trigger calling new message from people
|
|
Filter.prototype.trigger = function(messages) {
|
|
for(var i = 0; i < this.callbacks.length; i++) {
|
|
this.callbacks[i].call(this, messages);
|
|
}
|
|
};
|
|
|
|
/// should be called to uninstall current filter
|
|
Filter.prototype.uninstall = function() {
|
|
var self = this;
|
|
this.promise.then(function (id) {
|
|
self.impl.uninstallFilter(id);
|
|
web3.provider.stopPolling(id);
|
|
web3.off(impl.changed, id);
|
|
});
|
|
};
|
|
|
|
/// should be called to manually trigger getting latest messages from the client
|
|
Filter.prototype.messages = function() {
|
|
var self = this;
|
|
return this.promise.then(function (id) {
|
|
return self.impl.getMessages(id);
|
|
});
|
|
};
|
|
|
|
/// alias for messages
|
|
Filter.prototype.logs = function () {
|
|
return this.messages();
|
|
};
|
|
|
|
module.exports = Filter;
|
|
|
|
},{"./web3":8}],5:[function(require,module,exports){
|
|
/*
|
|
This file is part of ethereum.js.
|
|
|
|
ethereum.js is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ethereum.js is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/** @file httprpc.js
|
|
* @authors:
|
|
* Marek Kotewicz <marek@ethdev.com>
|
|
* Marian Oancea <marian@ethdev.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
// TODO: is these line is supposed to be here?
|
|
if ("build" !== 'build') {/*
|
|
var XMLHttpRequest = require('xmlhttprequest').XMLHttpRequest; // jshint ignore:line
|
|
*/}
|
|
|
|
/**
|
|
* HttpRpcProvider object prototype is implementing 'provider protocol'
|
|
* Should be used when we want to connect to ethereum backend over http && jsonrpc
|
|
* It's compatible with cpp client
|
|
* The contructor allows to specify host uri
|
|
* This provider is using in-browser polling mechanism
|
|
*/
|
|
var HttpRpcProvider = function (host) {
|
|
this.handlers = [];
|
|
this.host = host;
|
|
};
|
|
|
|
/// Transforms inner message to proper jsonrpc object
|
|
/// @param inner message object
|
|
/// @returns jsonrpc object
|
|
function formatJsonRpcObject(object) {
|
|
return {
|
|
jsonrpc: '2.0',
|
|
method: object.call,
|
|
params: object.args,
|
|
id: object._id
|
|
};
|
|
}
|
|
|
|
/// Transforms jsonrpc object to inner message
|
|
/// @param incoming jsonrpc message
|
|
/// @returns inner message object
|
|
function formatJsonRpcMessage(message) {
|
|
var object = JSON.parse(message);
|
|
|
|
return {
|
|
_id: object.id,
|
|
data: object.result,
|
|
error: object.error
|
|
};
|
|
}
|
|
|
|
/// Prototype object method
|
|
/// Asynchronously sends request to server
|
|
/// @param payload is inner message object
|
|
/// @param cb is callback which is being called when response is comes back
|
|
HttpRpcProvider.prototype.sendRequest = function (payload, cb) {
|
|
var data = formatJsonRpcObject(payload);
|
|
|
|
var request = new XMLHttpRequest();
|
|
request.open("POST", this.host, true);
|
|
request.send(JSON.stringify(data));
|
|
request.onreadystatechange = function () {
|
|
if (request.readyState === 4 && cb) {
|
|
cb(request);
|
|
}
|
|
};
|
|
};
|
|
|
|
/// Prototype object method
|
|
/// Should be called when we want to send single api request to server
|
|
/// Asynchronous
|
|
/// On response it passes message to handlers
|
|
/// @param payload is inner message object
|
|
HttpRpcProvider.prototype.send = function (payload) {
|
|
var self = this;
|
|
this.sendRequest(payload, function (request) {
|
|
self.handlers.forEach(function (handler) {
|
|
handler.call(self, formatJsonRpcMessage(request.responseText));
|
|
});
|
|
});
|
|
};
|
|
|
|
/// Prototype object method
|
|
/// Should be called only for polling requests
|
|
/// Asynchronous
|
|
/// On response it passege message to handlers, but only if message's result is true or not empty array
|
|
/// Otherwise response is being silently ignored
|
|
/// @param payload is inner message object
|
|
/// @id is id of poll that we are calling
|
|
HttpRpcProvider.prototype.poll = function (payload, id) {
|
|
var self = this;
|
|
this.sendRequest(payload, function (request) {
|
|
var parsed = JSON.parse(request.responseText);
|
|
if (parsed.error || (parsed.result instanceof Array ? parsed.result.length === 0 : !parsed.result)) {
|
|
return;
|
|
}
|
|
self.handlers.forEach(function (handler) {
|
|
handler.call(self, {_event: payload.call, _id: id, data: parsed.result});
|
|
});
|
|
});
|
|
};
|
|
|
|
/// Prototype object property
|
|
/// Should be used to set message handlers for this provider
|
|
Object.defineProperty(HttpRpcProvider.prototype, "onmessage", {
|
|
set: function (handler) {
|
|
this.handlers.push(handler);
|
|
}
|
|
});
|
|
|
|
module.exports = HttpRpcProvider;
|
|
|
|
|
|
},{}],6:[function(require,module,exports){
|
|
/*
|
|
This file is part of ethereum.js.
|
|
|
|
ethereum.js is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ethereum.js is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/** @file providermanager.js
|
|
* @authors:
|
|
* Jeffrey Wilcke <jeff@ethdev.com>
|
|
* Marek Kotewicz <marek@ethdev.com>
|
|
* Marian Oancea <marian@ethdev.com>
|
|
* Gav Wood <g@ethdev.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
var web3 = require('./web3'); // jshint ignore:line
|
|
|
|
/**
|
|
* Provider manager object prototype
|
|
* It's responsible for passing messages to providers
|
|
* If no provider is set it's responsible for queuing requests
|
|
* It's also responsible for polling the ethereum node for incoming messages
|
|
* Default poll timeout is 12 seconds
|
|
* If we are running ethereum.js inside ethereum browser, there are backend based tools responsible for polling,
|
|
* and provider manager polling mechanism is not used
|
|
*/
|
|
var ProviderManager = function() {
|
|
this.queued = [];
|
|
this.polls = [];
|
|
this.ready = false;
|
|
this.provider = undefined;
|
|
this.id = 1;
|
|
|
|
var self = this;
|
|
var poll = function () {
|
|
if (self.provider && self.provider.poll) {
|
|
self.polls.forEach(function (data) {
|
|
data.data._id = self.id;
|
|
self.id++;
|
|
self.provider.poll(data.data, data.id);
|
|
});
|
|
}
|
|
setTimeout(poll, 12000);
|
|
};
|
|
poll();
|
|
};
|
|
|
|
/// sends outgoing requests, if provider is not available, enqueue the request
|
|
ProviderManager.prototype.send = function(data, cb) {
|
|
data._id = this.id;
|
|
if (cb) {
|
|
web3._callbacks[data._id] = cb;
|
|
}
|
|
|
|
data.args = data.args || [];
|
|
this.id++;
|
|
|
|
if(this.provider !== undefined) {
|
|
this.provider.send(data);
|
|
} else {
|
|
console.warn("provider is not set");
|
|
this.queued.push(data);
|
|
}
|
|
};
|
|
|
|
/// setups provider, which will be used for sending messages
|
|
ProviderManager.prototype.set = function(provider) {
|
|
if(this.provider !== undefined && this.provider.unload !== undefined) {
|
|
this.provider.unload();
|
|
}
|
|
|
|
this.provider = provider;
|
|
this.ready = true;
|
|
};
|
|
|
|
/// resends queued messages
|
|
ProviderManager.prototype.sendQueued = function() {
|
|
for(var i = 0; this.queued.length; i++) {
|
|
// Resend
|
|
this.send(this.queued[i]);
|
|
}
|
|
};
|
|
|
|
/// @returns true if the provider i properly set
|
|
ProviderManager.prototype.installed = function() {
|
|
return this.provider !== undefined;
|
|
};
|
|
|
|
/// this method is only used, when we do not have native qt bindings and have to do polling on our own
|
|
/// should be callled, on start watching for eth/shh changes
|
|
ProviderManager.prototype.startPolling = function (data, pollId) {
|
|
if (!this.provider || !this.provider.poll) {
|
|
return;
|
|
}
|
|
this.polls.push({data: data, id: pollId});
|
|
};
|
|
|
|
/// should be called to stop polling for certain watch changes
|
|
ProviderManager.prototype.stopPolling = function (pollId) {
|
|
for (var i = this.polls.length; i--;) {
|
|
var poll = this.polls[i];
|
|
if (poll.id === pollId) {
|
|
this.polls.splice(i, 1);
|
|
}
|
|
}
|
|
};
|
|
|
|
module.exports = ProviderManager;
|
|
|
|
|
|
},{"./web3":8}],7:[function(require,module,exports){
|
|
/*
|
|
This file is part of ethereum.js.
|
|
|
|
ethereum.js is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ethereum.js is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/** @file qt.js
|
|
* @authors:
|
|
* Jeffrey Wilcke <jeff@ethdev.com>
|
|
* Marek Kotewicz <marek@ethdev.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
/**
|
|
* QtProvider object prototype is implementing 'provider protocol'
|
|
* Should be used inside ethereum browser. It's compatible with cpp and go clients.
|
|
* It uses navigator.qt object to pass the messages to native bindings
|
|
*/
|
|
var QtProvider = function() {
|
|
this.handlers = [];
|
|
|
|
var self = this;
|
|
navigator.qt.onmessage = function (message) {
|
|
self.handlers.forEach(function (handler) {
|
|
handler.call(self, JSON.parse(message.data));
|
|
});
|
|
};
|
|
};
|
|
|
|
/// Prototype object method
|
|
/// Should be called when we want to send single api request to native bindings
|
|
/// Asynchronous
|
|
/// Response will be received by navigator.qt.onmessage method and passed to handlers
|
|
/// @param payload is inner message object
|
|
QtProvider.prototype.send = function(payload) {
|
|
navigator.qt.postMessage(JSON.stringify(payload));
|
|
};
|
|
|
|
/// Prototype object property
|
|
/// Should be used to set message handlers for this provider
|
|
Object.defineProperty(QtProvider.prototype, "onmessage", {
|
|
set: function(handler) {
|
|
this.handlers.push(handler);
|
|
}
|
|
});
|
|
|
|
module.exports = QtProvider;
|
|
|
|
},{}],8:[function(require,module,exports){
|
|
/*
|
|
This file is part of ethereum.js.
|
|
|
|
ethereum.js is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ethereum.js is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/** @file web3.js
|
|
* @authors:
|
|
* Jeffrey Wilcke <jeff@ethdev.com>
|
|
* Marek Kotewicz <marek@ethdev.com>
|
|
* Marian Oancea <marian@ethdev.com>
|
|
* Gav Wood <g@ethdev.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
/// Recursively resolves all promises in given object and replaces the resolved values with promises
|
|
/// @param any object/array/promise/anything else..
|
|
/// @returns (resolves) object with replaced promises with their result
|
|
function flattenPromise (obj) {
|
|
if (obj instanceof Promise) {
|
|
return Promise.resolve(obj);
|
|
}
|
|
|
|
if (obj instanceof Array) {
|
|
return new Promise(function (resolve) {
|
|
var promises = obj.map(function (o) {
|
|
return flattenPromise(o);
|
|
});
|
|
|
|
return Promise.all(promises).then(function (res) {
|
|
for (var i = 0; i < obj.length; i++) {
|
|
obj[i] = res[i];
|
|
}
|
|
resolve(obj);
|
|
});
|
|
});
|
|
}
|
|
|
|
if (obj instanceof Object) {
|
|
return new Promise(function (resolve) {
|
|
var keys = Object.keys(obj);
|
|
var promises = keys.map(function (key) {
|
|
return flattenPromise(obj[key]);
|
|
});
|
|
|
|
return Promise.all(promises).then(function (res) {
|
|
for (var i = 0; i < keys.length; i++) {
|
|
obj[keys[i]] = res[i];
|
|
}
|
|
resolve(obj);
|
|
});
|
|
});
|
|
}
|
|
|
|
return Promise.resolve(obj);
|
|
}
|
|
|
|
/// @returns an array of objects describing web3 api methods
|
|
var web3Methods = function () {
|
|
return [
|
|
{ name: 'sha3', call: 'web3_sha3' }
|
|
];
|
|
};
|
|
|
|
/// @returns an array of objects describing web3.eth api methods
|
|
var ethMethods = function () {
|
|
var blockCall = function (args) {
|
|
return typeof args[0] === "string" ? "eth_blockByHash" : "eth_blockByNumber";
|
|
};
|
|
|
|
var transactionCall = function (args) {
|
|
return typeof args[0] === "string" ? 'eth_transactionByHash' : 'eth_transactionByNumber';
|
|
};
|
|
|
|
var uncleCall = function (args) {
|
|
return typeof args[0] === "string" ? 'eth_uncleByHash' : 'eth_uncleByNumber';
|
|
};
|
|
|
|
var methods = [
|
|
{ name: 'balanceAt', call: 'eth_balanceAt' },
|
|
{ name: 'stateAt', call: 'eth_stateAt' },
|
|
{ name: 'storageAt', call: 'eth_storageAt' },
|
|
{ name: 'countAt', call: 'eth_countAt'},
|
|
{ name: 'codeAt', call: 'eth_codeAt' },
|
|
{ name: 'transact', call: 'eth_transact' },
|
|
{ name: 'call', call: 'eth_call' },
|
|
{ name: 'block', call: blockCall },
|
|
{ name: 'transaction', call: transactionCall },
|
|
{ name: 'uncle', call: uncleCall },
|
|
{ name: 'compilers', call: 'eth_compilers' },
|
|
{ name: 'lll', call: 'eth_lll' },
|
|
{ name: 'solidity', call: 'eth_solidity' },
|
|
{ name: 'serpent', call: 'eth_serpent' },
|
|
{ name: 'logs', call: 'eth_logs' }
|
|
];
|
|
return methods;
|
|
};
|
|
|
|
/// @returns an array of objects describing web3.eth api properties
|
|
var ethProperties = function () {
|
|
return [
|
|
{ name: 'coinbase', getter: 'eth_coinbase', setter: 'eth_setCoinbase' },
|
|
{ name: 'listening', getter: 'eth_listening', setter: 'eth_setListening' },
|
|
{ name: 'mining', getter: 'eth_mining', setter: 'eth_setMining' },
|
|
{ name: 'gasPrice', getter: 'eth_gasPrice' },
|
|
{ name: 'account', getter: 'eth_account' },
|
|
{ name: 'accounts', getter: 'eth_accounts' },
|
|
{ name: 'peerCount', getter: 'eth_peerCount' },
|
|
{ name: 'defaultBlock', getter: 'eth_defaultBlock', setter: 'eth_setDefaultBlock' },
|
|
{ name: 'number', getter: 'eth_number'}
|
|
];
|
|
};
|
|
|
|
/// @returns an array of objects describing web3.db api methods
|
|
var dbMethods = function () {
|
|
return [
|
|
{ name: 'put', call: 'db_put' },
|
|
{ name: 'get', call: 'db_get' },
|
|
{ name: 'putString', call: 'db_putString' },
|
|
{ name: 'getString', call: 'db_getString' }
|
|
];
|
|
};
|
|
|
|
/// @returns an array of objects describing web3.shh api methods
|
|
var shhMethods = function () {
|
|
return [
|
|
{ name: 'post', call: 'shh_post' },
|
|
{ name: 'newIdentity', call: 'shh_newIdentity' },
|
|
{ name: 'haveIdentity', call: 'shh_haveIdentity' },
|
|
{ name: 'newGroup', call: 'shh_newGroup' },
|
|
{ name: 'addToGroup', call: 'shh_addToGroup' }
|
|
];
|
|
};
|
|
|
|
/// @returns an array of objects describing web3.eth.watch api methods
|
|
var ethWatchMethods = function () {
|
|
var newFilter = function (args) {
|
|
return typeof args[0] === 'string' ? 'eth_newFilterString' : 'eth_newFilter';
|
|
};
|
|
|
|
return [
|
|
{ name: 'newFilter', call: newFilter },
|
|
{ name: 'uninstallFilter', call: 'eth_uninstallFilter' },
|
|
{ name: 'getMessages', call: 'eth_filterLogs' }
|
|
];
|
|
};
|
|
|
|
/// @returns an array of objects describing web3.shh.watch api methods
|
|
var shhWatchMethods = function () {
|
|
return [
|
|
{ name: 'newFilter', call: 'shh_newFilter' },
|
|
{ name: 'uninstallFilter', call: 'shh_uninstallFilter' },
|
|
{ name: 'getMessage', call: 'shh_getMessages' }
|
|
];
|
|
};
|
|
|
|
/// creates methods in a given object based on method description on input
|
|
/// setups api calls for these methods
|
|
var setupMethods = function (obj, methods) {
|
|
methods.forEach(function (method) {
|
|
obj[method.name] = function () {
|
|
return flattenPromise(Array.prototype.slice.call(arguments)).then(function (args) {
|
|
var call = typeof method.call === "function" ? method.call(args) : method.call;
|
|
return {call: call, args: args};
|
|
}).then(function (request) {
|
|
return new Promise(function (resolve, reject) {
|
|
web3.provider.send(request, function (err, result) {
|
|
if (!err) {
|
|
resolve(result);
|
|
return;
|
|
}
|
|
reject(err);
|
|
});
|
|
});
|
|
}).catch(function(err) {
|
|
console.error(err);
|
|
});
|
|
};
|
|
});
|
|
};
|
|
|
|
/// creates properties in a given object based on properties description on input
|
|
/// setups api calls for these properties
|
|
var setupProperties = function (obj, properties) {
|
|
properties.forEach(function (property) {
|
|
var proto = {};
|
|
proto.get = function () {
|
|
return new Promise(function(resolve, reject) {
|
|
web3.provider.send({call: property.getter}, function(err, result) {
|
|
if (!err) {
|
|
resolve(result);
|
|
return;
|
|
}
|
|
reject(err);
|
|
});
|
|
});
|
|
};
|
|
if (property.setter) {
|
|
proto.set = function (val) {
|
|
return flattenPromise([val]).then(function (args) {
|
|
return new Promise(function (resolve) {
|
|
web3.provider.send({call: property.setter, args: args}, function (err, result) {
|
|
if (!err) {
|
|
resolve(result);
|
|
return;
|
|
}
|
|
reject(err);
|
|
});
|
|
});
|
|
}).catch(function (err) {
|
|
console.error(err);
|
|
});
|
|
};
|
|
}
|
|
Object.defineProperty(obj, property.name, proto);
|
|
});
|
|
};
|
|
|
|
// TODO: import from a dependency, don't duplicate.
|
|
var hexToDec = function (hex) {
|
|
return parseInt(hex, 16).toString();
|
|
};
|
|
|
|
var decToHex = function (dec) {
|
|
return parseInt(dec).toString(16);
|
|
};
|
|
|
|
/// setups web3 object, and it's in-browser executed methods
|
|
var web3 = {
|
|
_callbacks: {},
|
|
_events: {},
|
|
providers: {},
|
|
|
|
toHex: function(str) {
|
|
var hex = "";
|
|
for(var i = 0; i < str.length; i++) {
|
|
var n = str.charCodeAt(i).toString(16);
|
|
hex += n.length < 2 ? '0' + n : n;
|
|
}
|
|
|
|
return hex;
|
|
},
|
|
|
|
/// @returns ascii string representation of hex value prefixed with 0x
|
|
toAscii: function(hex) {
|
|
// Find termination
|
|
var str = "";
|
|
var i = 0, l = hex.length;
|
|
if (hex.substring(0, 2) === '0x')
|
|
i = 2;
|
|
for(; i < l; i+=2) {
|
|
var code = parseInt(hex.substr(i, 2), 16);
|
|
if(code === 0) {
|
|
break;
|
|
}
|
|
|
|
str += String.fromCharCode(code);
|
|
}
|
|
|
|
return str;
|
|
},
|
|
|
|
/// @returns hex representation (prefixed by 0x) of ascii string
|
|
fromAscii: function(str, pad) {
|
|
pad = pad === undefined ? 0 : pad;
|
|
var hex = this.toHex(str);
|
|
while(hex.length < pad*2)
|
|
hex += "00";
|
|
return "0x" + hex;
|
|
},
|
|
|
|
/// @returns decimal representaton of hex value prefixed by 0x
|
|
toDecimal: function (val) {
|
|
return hexToDec(val.substring(2));
|
|
},
|
|
|
|
/// @returns hex representation (prefixed by 0x) of decimal value
|
|
fromDecimal: function (val) {
|
|
return "0x" + decToHex(val);
|
|
},
|
|
|
|
/// used to transform value/string to eth string
|
|
toEth: function(str) {
|
|
var val = typeof str === "string" ? str.indexOf('0x') === 0 ? parseInt(str.substr(2), 16) : parseInt(str) : str;
|
|
var unit = 0;
|
|
var units = [ 'wei', 'Kwei', 'Mwei', 'Gwei', 'szabo', 'finney', 'ether', 'grand', 'Mether', 'Gether', 'Tether', 'Pether', 'Eether', 'Zether', 'Yether', 'Nether', 'Dether', 'Vether', 'Uether' ];
|
|
while (val > 3000 && unit < units.length - 1)
|
|
{
|
|
val /= 1000;
|
|
unit++;
|
|
}
|
|
var s = val.toString().length < val.toFixed(2).length ? val.toString() : val.toFixed(2);
|
|
var replaceFunction = function($0, $1, $2) {
|
|
return $1 + ',' + $2;
|
|
};
|
|
|
|
while (true) {
|
|
var o = s;
|
|
s = s.replace(/(\d)(\d\d\d[\.\,])/, replaceFunction);
|
|
if (o === s)
|
|
break;
|
|
}
|
|
return s + ' ' + units[unit];
|
|
},
|
|
|
|
/// eth object prototype
|
|
eth: {
|
|
watch: function (params) {
|
|
return new web3.filter(params, ethWatch);
|
|
}
|
|
},
|
|
|
|
/// db object prototype
|
|
db: {},
|
|
|
|
/// shh object prototype
|
|
shh: {
|
|
watch: function (params) {
|
|
return new web3.filter(params, shhWatch);
|
|
}
|
|
},
|
|
|
|
/// used by filter to register callback with given id
|
|
on: function(event, id, cb) {
|
|
if(web3._events[event] === undefined) {
|
|
web3._events[event] = {};
|
|
}
|
|
|
|
web3._events[event][id] = cb;
|
|
return this;
|
|
},
|
|
|
|
/// used by filter to unregister callback with given id
|
|
off: function(event, id) {
|
|
if(web3._events[event] !== undefined) {
|
|
delete web3._events[event][id];
|
|
}
|
|
|
|
return this;
|
|
},
|
|
|
|
/// used to trigger callback registered by filter
|
|
trigger: function(event, id, data) {
|
|
var callbacks = web3._events[event];
|
|
if (!callbacks || !callbacks[id]) {
|
|
return;
|
|
}
|
|
var cb = callbacks[id];
|
|
cb(data);
|
|
},
|
|
|
|
/// @returns true if provider is installed
|
|
haveProvider: function() {
|
|
return !!web3.provider.provider;
|
|
}
|
|
};
|
|
|
|
/// setups all api methods
|
|
setupMethods(web3, web3Methods());
|
|
setupMethods(web3.eth, ethMethods());
|
|
setupProperties(web3.eth, ethProperties());
|
|
setupMethods(web3.db, dbMethods());
|
|
setupMethods(web3.shh, shhMethods());
|
|
|
|
var ethWatch = {
|
|
changed: 'eth_changed'
|
|
};
|
|
|
|
setupMethods(ethWatch, ethWatchMethods());
|
|
|
|
var shhWatch = {
|
|
changed: 'shh_changed'
|
|
};
|
|
|
|
setupMethods(shhWatch, shhWatchMethods());
|
|
|
|
web3.setProvider = function(provider) {
|
|
provider.onmessage = messageHandler;
|
|
web3.provider.set(provider);
|
|
web3.provider.sendQueued();
|
|
};
|
|
|
|
/// callled when there is new incoming message
|
|
function messageHandler(data) {
|
|
if(data._event !== undefined) {
|
|
web3.trigger(data._event, data._id, data.data);
|
|
return;
|
|
}
|
|
|
|
if(data._id) {
|
|
var cb = web3._callbacks[data._id];
|
|
if (cb) {
|
|
cb.call(this, data.error, data.data);
|
|
delete web3._callbacks[data._id];
|
|
}
|
|
}
|
|
}
|
|
|
|
module.exports = web3;
|
|
|
|
|
|
},{}],9:[function(require,module,exports){
|
|
/*
|
|
This file is part of ethereum.js.
|
|
|
|
ethereum.js is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ethereum.js is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/** @file websocket.js
|
|
* @authors:
|
|
* Jeffrey Wilcke <jeff@ethdev.com>
|
|
* Marek Kotewicz <marek@ethdev.com>
|
|
* Marian Oancea <marian@ethdev.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
// TODO: is these line is supposed to be here?
|
|
if ("build" !== 'build') {/*
|
|
var WebSocket = require('ws'); // jshint ignore:line
|
|
*/}
|
|
|
|
/**
|
|
* WebSocketProvider object prototype is implementing 'provider protocol'
|
|
* Should be used when we want to connect to ethereum backend over websockets
|
|
* It's compatible with go client
|
|
* The constructor allows to specify host uri
|
|
*/
|
|
var WebSocketProvider = function(host) {
|
|
|
|
// onmessage handlers
|
|
this.handlers = [];
|
|
|
|
// queue will be filled with messages if send is invoked before the ws is ready
|
|
this.queued = [];
|
|
this.ready = false;
|
|
|
|
this.ws = new WebSocket(host);
|
|
|
|
var self = this;
|
|
this.ws.onmessage = function(event) {
|
|
for(var i = 0; i < self.handlers.length; i++) {
|
|
self.handlers[i].call(self, JSON.parse(event.data), event);
|
|
}
|
|
};
|
|
|
|
this.ws.onopen = function() {
|
|
self.ready = true;
|
|
|
|
for (var i = 0; i < self.queued.length; i++) {
|
|
// Resend
|
|
self.send(self.queued[i]);
|
|
}
|
|
};
|
|
};
|
|
|
|
/// Prototype object method
|
|
/// Should be called when we want to send single api request to server
|
|
/// Asynchronous, it's using websockets
|
|
/// Response for the call will be received by ws.onmessage
|
|
/// @param payload is inner message object
|
|
WebSocketProvider.prototype.send = function(payload) {
|
|
if (this.ready) {
|
|
var data = JSON.stringify(payload);
|
|
|
|
this.ws.send(data);
|
|
} else {
|
|
this.queued.push(payload);
|
|
}
|
|
};
|
|
|
|
/// Prototype object method
|
|
/// Should be called to add handlers
|
|
WebSocketProvider.prototype.onMessage = function(handler) {
|
|
this.handlers.push(handler);
|
|
};
|
|
|
|
/// Prototype object method
|
|
/// Should be called to close websockets connection
|
|
WebSocketProvider.prototype.unload = function() {
|
|
this.ws.close();
|
|
};
|
|
|
|
/// Prototype object property
|
|
/// Should be used to set message handlers for this provider
|
|
Object.defineProperty(WebSocketProvider.prototype, "onmessage", {
|
|
set: function(provider) { this.onMessage(provider); }
|
|
});
|
|
|
|
if (typeof(module) !== "undefined")
|
|
module.exports = WebSocketProvider;
|
|
|
|
},{}],"web3":[function(require,module,exports){
|
|
var web3 = require('./lib/web3');
|
|
var ProviderManager = require('./lib/providermanager');
|
|
web3.provider = new ProviderManager();
|
|
web3.filter = require('./lib/filter');
|
|
web3.providers.WebSocketProvider = require('./lib/websocket');
|
|
web3.providers.HttpRpcProvider = require('./lib/httprpc');
|
|
web3.providers.QtProvider = require('./lib/qt');
|
|
web3.providers.AutoProvider = require('./lib/autoprovider');
|
|
web3.eth.contract = require('./lib/contract');
|
|
|
|
module.exports = web3;
|
|
|
|
},{"./lib/autoprovider":2,"./lib/contract":3,"./lib/filter":4,"./lib/httprpc":5,"./lib/providermanager":6,"./lib/qt":7,"./lib/web3":8,"./lib/websocket":9}]},{},["web3"])
|
|
|
|
|
|
//# sourceMappingURL=ethereum.js.map
|