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. */ /** @file abi.js * @authors: * Marek Kotewicz * Gav Wood * @date 2014 */ var web3 = require('./web3'); var utils = require('./utils'); var types = require('./types'); var c = require('./const'); var f = require('./formatters'); var displayTypeError = function (type) { console.error('parser does not support type: ' + type); }; /// This method should be called if we want to check if givent type is an array type /// @returns true if it is, otherwise false var arrayType = function (type) { return type.slice(-2) === '[]'; }; var dynamicTypeBytes = function (type, value) { // TODO: decide what to do with array of strings if (arrayType(type) || type === 'string') // only string itself that is dynamic; stringX is static length. return f.formatInputInt(value.length); return ""; }; var inputTypes = types.inputTypes(); /// Formats input params to bytes /// @param abi contract method inputs /// @param array of params that will be formatted to bytes /// @returns bytes representation of input params var formatInput = function (inputs, params) { var bytes = ""; var padding = c.ETH_PADDING * 2; /// first we iterate in search for dynamic inputs.forEach(function (input, index) { bytes += dynamicTypeBytes(input.type, params[index]); }); inputs.forEach(function (input, i) { var typeMatch = false; for (var j = 0; j < inputTypes.length && !typeMatch; j++) { typeMatch = inputTypes[j].type(inputs[i].type, params[i]); } if (!typeMatch) { displayTypeError(inputs[i].type); } var formatter = inputTypes[j - 1].format; var toAppend = ""; if (arrayType(inputs[i].type)) toAppend = params[i].reduce(function (acc, curr) { return acc + formatter(curr); }, ""); else toAppend = formatter(params[i]); bytes += toAppend; }); return bytes; }; var dynamicBytesLength = function (type) { if (arrayType(type) || type === 'string') // only string itself that is dynamic; stringX is static length. return c.ETH_PADDING * 2; return 0; }; var outputTypes = types.outputTypes(); /// Formats output bytes back to param list /// @param contract abi method outputs /// @param bytes representtion of output /// @returns array of output params var formatOutput = function (outs, output) { output = output.slice(2); var result = []; var padding = c.ETH_PADDING * 2; var dynamicPartLength = outs.reduce(function (acc, curr) { return acc + dynamicBytesLength(curr.type); }, 0); var dynamicPart = output.slice(0, dynamicPartLength); output = output.slice(dynamicPartLength); outs.forEach(function (out, i) { var typeMatch = false; for (var j = 0; j < outputTypes.length && !typeMatch; j++) { typeMatch = outputTypes[j].type(outs[i].type); } if (!typeMatch) { displayTypeError(outs[i].type); } var formatter = outputTypes[j - 1].format; if (arrayType(outs[i].type)) { var size = f.formatOutputUInt(dynamicPart.slice(0, padding)); dynamicPart = dynamicPart.slice(padding); var array = []; for (var k = 0; k < size; k++) { array.push(formatter(output.slice(0, padding))); output = output.slice(padding); } result.push(array); } else if (types.prefixedType('string')(outs[i].type)) { dynamicPart = dynamicPart.slice(padding); result.push(formatter(output.slice(0, padding))); output = output.slice(padding); } else { result.push(formatter(output.slice(0, padding))); output = output.slice(padding); } }); return result; }; /// @param json abi for contract /// @returns input parser object for given json abi /// TODO: refactor creating the parser, do not double logic from contract var inputParser = function (json) { var parser = {}; json.forEach(function (method) { var displayName = utils.extractDisplayName(method.name); var typeName = utils.extractTypeName(method.name); var impl = function () { var params = Array.prototype.slice.call(arguments); return formatInput(method.inputs, params); }; if (parser[displayName] === undefined) { parser[displayName] = impl; } parser[displayName][typeName] = impl; }); return parser; }; /// @param json abi for contract /// @returns output parser for given json abi var outputParser = function (json) { var parser = {}; json.forEach(function (method) { var displayName = utils.extractDisplayName(method.name); var typeName = utils.extractTypeName(method.name); var impl = function (output) { return formatOutput(method.outputs, output); }; if (parser[displayName] === undefined) { parser[displayName] = impl; } parser[displayName][typeName] = impl; }); return parser; }; /// @param function/event name for which we want to get signature /// @returns signature of function/event with given name var signatureFromAscii = function (name) { return web3.sha3(web3.fromAscii(name)).slice(0, 2 + c.ETH_SIGNATURE_LENGTH * 2); }; var eventSignatureFromAscii = function (name) { return web3.sha3(web3.fromAscii(name)); }; module.exports = { inputParser: inputParser, outputParser: outputParser, formatInput: formatInput, formatOutput: formatOutput, signatureFromAscii: signatureFromAscii, eventSignatureFromAscii: eventSignatureFromAscii }; },{"./const":2,"./formatters":6,"./types":10,"./utils":11,"./web3":12}],2:[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 . */ /** @file const.js * @authors: * Marek Kotewicz * @date 2015 */ /// required to define ETH_BIGNUMBER_ROUNDING_MODE if ("build" !== 'build') {/* var BigNumber = require('bignumber.js'); // jshint ignore:line */} var ETH_UNITS = [ 'wei', 'Kwei', 'Mwei', 'Gwei', 'szabo', 'finney', 'ether', 'grand', 'Mether', 'Gether', 'Tether', 'Pether', 'Eether', 'Zether', 'Yether', 'Nether', 'Dether', 'Vether', 'Uether' ]; module.exports = { ETH_PADDING: 32, ETH_SIGNATURE_LENGTH: 4, ETH_UNITS: ETH_UNITS, ETH_BIGNUMBER_ROUNDING_MODE: { ROUNDING_MODE: BigNumber.ROUND_DOWN } }; },{}],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 . */ /** @file contract.js * @authors: * Marek Kotewicz * @date 2014 */ var web3 = require('./web3'); var abi = require('./abi'); var utils = require('./utils'); var eventImpl = require('./event'); var exportNatspecGlobals = function (vars) { // it's used byt natspec.js // TODO: figure out better way to solve this web3._currentContractAbi = vars.abi; web3._currentContractAddress = vars.address; web3._currentContractMethodName = vars.method; web3._currentContractMethodParams = vars.params; }; var addFunctionRelatedPropertiesToContract = function (contract) { contract.call = function (options) { contract._isTransact = false; contract._options = options; return contract; }; contract.transact = function (options) { contract._isTransact = true; contract._options = options; return contract; }; contract._options = {}; ['gas', 'gasPrice', 'value', 'from'].forEach(function(p) { contract[p] = function (v) { contract._options[p] = v; return contract; }; }); }; var addFunctionsToContract = function (contract, desc, address) { var inputParser = abi.inputParser(desc); var outputParser = abi.outputParser(desc); // create contract functions utils.filterFunctions(desc).forEach(function (method) { var displayName = utils.extractDisplayName(method.name); var typeName = utils.extractTypeName(method.name); var impl = function () { var params = Array.prototype.slice.call(arguments); var signature = abi.signatureFromAscii(method.name); var parsed = inputParser[displayName][typeName].apply(null, params); var options = contract._options || {}; options.to = address; options.data = signature + parsed; var isTransact = contract._isTransact === true || (contract._isTransact !== false && !method.constant); var collapse = options.collapse !== false; // reset contract._options = {}; contract._isTransact = null; if (isTransact) { exportNatspecGlobals({ abi: desc, address: address, method: method.name, params: params }); // transactions do not have any output, cause we do not know, when they will be processed web3.eth.transact(options); return; } var output = web3.eth.call(options); var ret = outputParser[displayName][typeName](output); if (collapse) { if (ret.length === 1) ret = ret[0]; else if (ret.length === 0) ret = null; } return ret; }; if (contract[displayName] === undefined) { contract[displayName] = impl; } contract[displayName][typeName] = impl; }); }; var addEventRelatedPropertiesToContract = function (contract, desc, address) { contract.address = address; contract._onWatchEventResult = function (data) { var matchingEvent = event.getMatchingEvent(utils.filterEvents(desc)); var parser = eventImpl.outputParser(matchingEvent); return parser(data); }; Object.defineProperty(contract, 'topic', { get: function() { return utils.filterEvents(desc).map(function (e) { return abi.eventSignatureFromAscii(e.name); }); } }); }; var addEventsToContract = function (contract, desc, address) { // create contract events utils.filterEvents(desc).forEach(function (e) { var impl = function () { var params = Array.prototype.slice.call(arguments); var signature = abi.eventSignatureFromAscii(e.name); var event = eventImpl.inputParser(address, signature, e); var o = event.apply(null, params); o._onWatchEventResult = function (data) { var parser = eventImpl.outputParser(e); return parser(data); }; return web3.eth.watch(o); }; // this property should be used by eth.filter to check if object is an event impl._isEvent = true; var displayName = utils.extractDisplayName(e.name); var typeName = utils.extractTypeName(e.name); if (contract[displayName] === undefined) { contract[displayName] = impl; } contract[displayName][typeName] = impl; }); }; /** * 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'); // myMethod call (implicit, default) * myContract.call().myMethod('this is test string param for call'); // myMethod call (explicit) * myContract.transact().myMethod('this is test string param for 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) { // workaround for invalid assumption that method.name is the full anonymous prototype of the method. // it's not. it's just the name. the rest of the code assumes it's actually the anonymous // prototype, so we make it so as a workaround. // TODO: we may not want to modify input params, maybe use copy instead? desc.forEach(function (method) { if (method.name.indexOf('(') === -1) { var displayName = method.name; var typeName = method.inputs.map(function(i){return i.type; }).join(); method.name = displayName + '(' + typeName + ')'; } }); var result = {}; addFunctionRelatedPropertiesToContract(result); addFunctionsToContract(result, desc, address); addEventRelatedPropertiesToContract(result, desc, address); addEventsToContract(result, desc, address); return result; }; module.exports = contract; },{"./abi":1,"./event":4,"./utils":11,"./web3":12}],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 . */ /** @file event.js * @authors: * Marek Kotewicz * @date 2014 */ var abi = require('./abi'); var utils = require('./utils'); /// filter inputs array && returns only indexed (or not) inputs /// @param inputs array /// @param bool if result should be an array of indexed params on not /// @returns array of (not?) indexed params var filterInputs = function (inputs, indexed) { return inputs.filter(function (current) { return current.indexed === indexed; }); }; var inputWithName = function (inputs, name) { var index = utils.findIndex(inputs, function (input) { return input.name === name; }); if (index === -1) { console.error('indexed param with name ' + name + ' not found'); return undefined; } return inputs[index]; }; var indexedParamsToTopics = function (event, indexed) { // sort keys? return Object.keys(indexed).map(function (key) { var inputs = [inputWithName(filterInputs(event.inputs, true), key)]; var value = indexed[key]; if (value instanceof Array) { return value.map(function (v) { return abi.formatInput(inputs, [v]); }); } return abi.formatInput(inputs, [value]); }); }; var inputParser = function (address, signature, event) { // valid options are 'earliest', 'latest', 'offset' and 'max', as defined for 'eth.watch' return function (indexed, options) { var o = options || {}; o.address = address; o.topic = []; o.topic.push(signature); if (indexed) { o.topic = o.topic.concat(indexedParamsToTopics(event, indexed)); } return o; }; }; var getArgumentsObject = function (inputs, indexed, notIndexed) { var indexedCopy = indexed.slice(); var notIndexedCopy = notIndexed.slice(); return inputs.reduce(function (acc, current) { var value; if (current.indexed) value = indexed.splice(0, 1)[0]; else value = notIndexed.splice(0, 1)[0]; acc[current.name] = value; return acc; }, {}); }; var outputParser = function (event) { return function (output) { var result = { event: utils.extractDisplayName(event.name), number: output.number, args: {} }; if (!output.topic) { return result; } var indexedOutputs = filterInputs(event.inputs, true); var indexedData = "0x" + output.topic.slice(1, output.topic.length).map(function (topic) { return topic.slice(2); }).join(""); var indexedRes = abi.formatOutput(indexedOutputs, indexedData); var notIndexedOutputs = filterInputs(event.inputs, false); var notIndexedRes = abi.formatOutput(notIndexedOutputs, output.data); result.args = getArgumentsObject(event.inputs, indexedRes, notIndexedRes); return result; }; }; var getMatchingEvent = function (events, payload) { for (var i = 0; i < events.length; i++) { var signature = abi.eventSignatureFromAscii(events[i].name); if (signature === payload.topic[0]) { return events[i]; } } return undefined; }; module.exports = { inputParser: inputParser, outputParser: outputParser, getMatchingEvent: getMatchingEvent }; },{"./abi":1,"./utils":11}],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 . */ /** @file filter.js * @authors: * Jeffrey Wilcke * Marek Kotewicz * Marian Oancea * Gav Wood * @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 /// TODO: change 'options' name cause it may be not the best matching one, since we have events var Filter = function(options, impl) { if (typeof options !== "string") { // topics property is deprecated, warn about it! if (options.topics) { console.warn('"topics" is deprecated, use "topic" instead'); } this._onWatchResult = options._onWatchEventResult; // evaluate lazy properties options = { to: options.to, topic: options.topic, earliest: options.earliest, latest: options.latest, max: options.max, skip: options.skip, address: options.address }; } this.impl = impl; this.callbacks = []; this.id = impl.newFilter(options); web3.provider.startPolling({call: impl.changed, args: [this.id]}, this.id, this.trigger.bind(this)); }; /// alias for changed* Filter.prototype.arrived = function(callback) { this.changed(callback); }; Filter.prototype.happened = function(callback) { this.changed(callback); }; /// gets called when there is new eth/shh message Filter.prototype.changed = function(callback) { this.callbacks.push(callback); }; /// trigger calling new message from people Filter.prototype.trigger = function(messages) { for (var i = 0; i < this.callbacks.length; i++) { for (var j = 0; j < messages.length; j++) { var message = this._onWatchResult ? this._onWatchResult(messages[j]) : messages[j]; this.callbacks[i].call(this, message); } } }; /// should be called to uninstall current filter Filter.prototype.uninstall = function() { this.impl.uninstallFilter(this.id); web3.provider.stopPolling(this.id); }; /// should be called to manually trigger getting latest messages from the client Filter.prototype.messages = function() { return this.impl.getMessages(this.id); }; /// alias for messages Filter.prototype.logs = function () { return this.messages(); }; module.exports = Filter; },{"./web3":12}],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 . */ /** @file formatters.js * @authors: * Marek Kotewicz * @date 2015 */ if ("build" !== 'build') {/* var BigNumber = require('bignumber.js'); // jshint ignore:line */} var utils = require('./utils'); var c = require('./const'); /// @param string string to be padded /// @param number of characters that result string should have /// @param sign, by default 0 /// @returns right aligned string var padLeft = function (string, chars, sign) { return new Array(chars - string.length + 1).join(sign ? sign : "0") + string; }; /// Formats input value to byte representation of int /// If value is negative, return it's two's complement /// If the value is floating point, round it down /// @returns right-aligned byte representation of int var formatInputInt = function (value) { var padding = c.ETH_PADDING * 2; if (value instanceof BigNumber || typeof value === 'number') { if (typeof value === 'number') value = new BigNumber(value); BigNumber.config(c.ETH_BIGNUMBER_ROUNDING_MODE); value = value.round(); if (value.lessThan(0)) value = new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16).plus(value).plus(1); value = value.toString(16); } else if (value.indexOf('0x') === 0) value = value.substr(2); else if (typeof value === 'string') value = formatInputInt(new BigNumber(value)); else value = (+value).toString(16); return padLeft(value, padding); }; /// Formats input value to byte representation of string /// @returns left-algined byte representation of string var formatInputString = function (value) { return utils.fromAscii(value, c.ETH_PADDING).substr(2); }; /// Formats input value to byte representation of bool /// @returns right-aligned byte representation bool var formatInputBool = function (value) { return '000000000000000000000000000000000000000000000000000000000000000' + (value ? '1' : '0'); }; /// Formats input value to byte representation of real /// Values are multiplied by 2^m and encoded as integers /// @returns byte representation of real var formatInputReal = function (value) { return formatInputInt(new BigNumber(value).times(new BigNumber(2).pow(128))); }; /// Check if input value is negative /// @param value is hex format /// @returns true if it is negative, otherwise false var signedIsNegative = function (value) { return (new BigNumber(value.substr(0, 1), 16).toString(2).substr(0, 1)) === '1'; }; /// Formats input right-aligned input bytes to int /// @returns right-aligned input bytes formatted to int var formatOutputInt = function (value) { value = value || "0"; // check if it's negative number // it it is, return two's complement if (signedIsNegative(value)) { return new BigNumber(value, 16).minus(new BigNumber('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16)).minus(1); } return new BigNumber(value, 16); }; /// Formats big right-aligned input bytes to uint /// @returns right-aligned input bytes formatted to uint var formatOutputUInt = function (value) { value = value || "0"; return new BigNumber(value, 16); }; /// @returns input bytes formatted to real var formatOutputReal = function (value) { return formatOutputInt(value).dividedBy(new BigNumber(2).pow(128)); }; /// @returns input bytes formatted to ureal var formatOutputUReal = function (value) { return formatOutputUInt(value).dividedBy(new BigNumber(2).pow(128)); }; /// @returns right-aligned input bytes formatted to hex var formatOutputHash = function (value) { return "0x" + value; }; /// @returns right-aligned input bytes formatted to bool var formatOutputBool = function (value) { return value === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false; }; /// @returns left-aligned input bytes formatted to ascii string var formatOutputString = function (value) { return utils.toAscii(value); }; /// @returns right-aligned input bytes formatted to address var formatOutputAddress = function (value) { return "0x" + value.slice(value.length - 40, value.length); }; module.exports = { formatInputInt: formatInputInt, formatInputString: formatInputString, formatInputBool: formatInputBool, formatInputReal: formatInputReal, formatOutputInt: formatOutputInt, formatOutputUInt: formatOutputUInt, formatOutputReal: formatOutputReal, formatOutputUReal: formatOutputUReal, formatOutputHash: formatOutputHash, formatOutputBool: formatOutputBool, formatOutputString: formatOutputString, formatOutputAddress: formatOutputAddress }; },{"./const":2,"./utils":11}],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 . */ /** @file httpsync.js * @authors: * Marek Kotewicz * Marian Oancea * @date 2014 */ if ("build" !== 'build') {/* var XMLHttpRequest = require('xmlhttprequest').XMLHttpRequest; // jshint ignore:line */} var HttpSyncProvider = function (host) { this.handlers = []; this.host = host || 'http://localhost:8080'; }; /// 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 }; } HttpSyncProvider.prototype.send = function (payload) { var data = formatJsonRpcObject(payload); var request = new XMLHttpRequest(); request.open('POST', this.host, false); request.send(JSON.stringify(data)); // check request.status return request.responseText; }; module.exports = HttpSyncProvider; },{}],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 . */ /** @file providermanager.js * @authors: * Jeffrey Wilcke * Marek Kotewicz * Marian Oancea * Gav Wood * @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.polls = []; this.provider = undefined; this.id = 1; var self = this; var poll = function () { if (self.provider) { self.polls.forEach(function (data) { data.data._id = self.id; self.id++; var result = self.provider.send(data.data); result = JSON.parse(result); // dont call the callback if result is not an array, or empty one if (result.error || !(result.result instanceof Array) || result.result.length === 0) { return; } data.callback(result.result); }); } setTimeout(poll, 1000); }; poll(); }; /// sends outgoing requests ProviderManager.prototype.send = function(data) { data.args = data.args || []; data._id = this.id++; if (this.provider === undefined) { console.error('provider is not set'); return null; } //TODO: handle error here? var result = this.provider.send(data); result = JSON.parse(result); if (result.error) { console.log(result.error); return null; } return result.result; }; /// setups provider, which will be used for sending messages ProviderManager.prototype.set = function(provider) { this.provider = provider; }; /// 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, callback) { this.polls.push({data: data, id: pollId, callback: callback}); }; /// 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":12}],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 . */ /** @file qtsync.js * @authors: * Marek Kotewicz * Marian Oancea * @date 2014 */ var QtSyncProvider = function () { }; QtSyncProvider.prototype.send = function (payload) { return navigator.qt.callMethod(JSON.stringify(payload)); }; module.exports = QtSyncProvider; },{}],10:[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 . */ /** @file types.js * @authors: * Marek Kotewicz * @date 2015 */ var f = require('./formatters'); /// @param expected type prefix (string) /// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false var prefixedType = function (prefix) { return function (type) { return type.indexOf(prefix) === 0; }; }; /// @param expected type name (string) /// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false var namedType = function (name) { return function (type) { return name === type; }; }; /// Setups input formatters for solidity types /// @returns an array of input formatters var inputTypes = function () { return [ { type: prefixedType('uint'), format: f.formatInputInt }, { type: prefixedType('int'), format: f.formatInputInt }, { type: prefixedType('hash'), format: f.formatInputInt }, { type: prefixedType('string'), format: f.formatInputString }, { type: prefixedType('real'), format: f.formatInputReal }, { type: prefixedType('ureal'), format: f.formatInputReal }, { type: namedType('address'), format: f.formatInputInt }, { type: namedType('bool'), format: f.formatInputBool } ]; }; /// Setups output formaters for solidity types /// @returns an array of output formatters var outputTypes = function () { return [ { type: prefixedType('uint'), format: f.formatOutputUInt }, { type: prefixedType('int'), format: f.formatOutputInt }, { type: prefixedType('hash'), format: f.formatOutputHash }, { type: prefixedType('string'), format: f.formatOutputString }, { type: prefixedType('real'), format: f.formatOutputReal }, { type: prefixedType('ureal'), format: f.formatOutputUReal }, { type: namedType('address'), format: f.formatOutputAddress }, { type: namedType('bool'), format: f.formatOutputBool } ]; }; module.exports = { prefixedType: prefixedType, namedType: namedType, inputTypes: inputTypes, outputTypes: outputTypes }; },{"./formatters":6}],11:[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 . */ /** @file utils.js * @authors: * Marek Kotewicz * @date 2015 */ var c = require('./const'); /// Finds first index of array element matching pattern /// @param array /// @param callback pattern /// @returns index of element var findIndex = function (array, callback) { var end = false; var i = 0; for (; i < array.length && !end; i++) { end = callback(array[i]); } return end ? i - 1 : -1; }; /// @returns ascii string representation of hex value prefixed with 0x var 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; }; var 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 hex representation (prefixed by 0x) of ascii string var fromAscii = function(str, pad) { pad = pad === undefined ? 0 : pad; var hex = toHex(str); while (hex.length < pad*2) hex += "00"; return "0x" + hex; }; /// @returns display name for function/event eg. multiply(uint256) -> multiply var extractDisplayName = function (name) { var length = name.indexOf('('); return length !== -1 ? name.substr(0, length) : name; }; /// @returns overloaded part of function/event name var extractTypeName = function (name) { /// TODO: make it invulnerable var length = name.indexOf('('); return length !== -1 ? name.substr(length + 1, name.length - 1 - (length + 1)) : ""; }; /// Filters all function from input abi /// @returns abi array with filtered objects of type 'function' var filterFunctions = function (json) { return json.filter(function (current) { return current.type === 'function'; }); }; /// Filters all events form input abi /// @returns abi array with filtered objects of type 'event' var filterEvents = function (json) { return json.filter(function (current) { return current.type === 'event'; }); }; /// used to transform value/string to eth string /// TODO: use BigNumber.js to parse int /// TODO: add tests for it! var 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 = c.ETH_UNITS; 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]; }; module.exports = { findIndex: findIndex, toAscii: toAscii, fromAscii: fromAscii, extractDisplayName: extractDisplayName, extractTypeName: extractTypeName, filterFunctions: filterFunctions, filterEvents: filterEvents, toEth: toEth }; },{"./const":2}],12:[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 . */ /** @file web3.js * @authors: * Jeffrey Wilcke * Marek Kotewicz * Marian Oancea * Gav Wood * @date 2014 */ if ("build" !== 'build') {/* var BigNumber = require('bignumber.js'); */} var utils = require('./utils'); /// @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: 'flush', call: 'eth_flush' }, { 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: '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: 'getMessages', 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 () { var args = Array.prototype.slice.call(arguments); var call = typeof method.call === 'function' ? method.call(args) : method.call; return web3.provider.send({ call: call, args: args }); }; }); }; /// 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 web3.provider.send({ call: property.getter }); }; if (property.setter) { proto.set = function (val) { return web3.provider.send({ call: property.setter, args: [val] }); }; } Object.defineProperty(obj, property.name, proto); }); }; /// setups web3 object, and it's in-browser executed methods var web3 = { _callbacks: {}, _events: {}, providers: {}, /// @returns ascii string representation of hex value prefixed with 0x toAscii: utils.toAscii, /// @returns hex representation (prefixed by 0x) of ascii string fromAscii: utils.fromAscii, /// @returns decimal representaton of hex value prefixed by 0x toDecimal: function (val) { // remove 0x and place 0, if it's required val = val.length > 2 ? val.substring(2) : "0"; return (new BigNumber(val, 16).toString(10)); }, /// @returns hex representation (prefixed by 0x) of decimal value fromDecimal: function (val) { return "0x" + (new BigNumber(val).toString(16)); }, /// used to transform value/string to eth string toEth: utils.toEth, /// eth object prototype eth: { contractFromAbi: function (abi) { return function(addr) { // Default to address of Config. TODO: rremove prior to genesis. addr = addr || '0xc6d9d2cd449a754c494264e1809c50e34d64562b'; var ret = web3.eth.contract(addr, abi); ret.address = addr; return ret; }; }, /// @param filter may be a string, object or event /// @param indexed is optional, this is an object with optional event indexed params /// @param options is optional, this is an object with optional event options ('max'...) watch: function (filter, indexed, options) { if (filter._isEvent) { return filter(indexed, options); } return new web3.filter(filter, ethWatch); } }, /// db object prototype db: {}, /// shh object prototype shh: { /// @param filter may be a string, object or event watch: function (filter, indexed) { return new web3.filter(filter, shhWatch); } }, }; /// 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) { web3.provider.set(provider); }; module.exports = web3; },{"./utils":11}],"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.HttpSyncProvider = require('./lib/httpsync'); web3.providers.QtSyncProvider = require('./lib/qtsync'); web3.eth.contract = require('./lib/contract'); web3.abi = require('./lib/abi'); module.exports = web3; },{"./lib/abi":1,"./lib/contract":3,"./lib/filter":5,"./lib/httpsync":7,"./lib/providermanager":8,"./lib/qtsync":9,"./lib/web3":12}]},{},["web3"]) //# sourceMappingURL=ethereum.js.map