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author | obscuren <geffobscura@gmail.com> | 2015-01-28 17:58:56 +0800 |
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committer | obscuren <geffobscura@gmail.com> | 2015-01-28 17:58:56 +0800 |
commit | 94976d63ca7d12983aa75ed8cf04d4210a818b33 (patch) | |
tree | cbcc5af9d5109282ee2466467931aa3fd80592b3 /cmd/mist/assets/ext/lib/web3.js | |
parent | ad5894e486f0c78606453a6aba38c6670b791a92 (diff) | |
parent | cb47a9e97ff3f2dcd2d2e6f1a3d39709d6d6a24d (diff) | |
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Merge branch 'develop' into qt5.4
Diffstat (limited to 'cmd/mist/assets/ext/lib/web3.js')
-rw-r--r-- | cmd/mist/assets/ext/lib/web3.js | 327 |
1 files changed, 327 insertions, 0 deletions
diff --git a/cmd/mist/assets/ext/lib/web3.js b/cmd/mist/assets/ext/lib/web3.js new file mode 100644 index 000000000..7b8bbd28a --- /dev/null +++ b/cmd/mist/assets/ext/lib/web3.js @@ -0,0 +1,327 @@ +/* + 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 + */ + +if (process.env.NODE_ENV !== 'build') { + var BigNumber = require('bignumber.js'); +} + +var ETH_UNITS = [ + 'wei', + 'Kwei', + 'Mwei', + 'Gwei', + 'szabo', + 'finney', + 'ether', + 'grand', + 'Mether', + 'Gether', + 'Tether', + 'Pether', + 'Eether', + 'Zether', + 'Yether', + 'Nether', + 'Dether', + 'Vether', + 'Uether' +]; + +/// @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: {}, + + 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) { + // 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 + /// TODO: use BigNumber.js to parse int + 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 = 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]; + }, + + /// 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; + }; + }, + 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); + } + }, + + /// @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; // there will be no async calls, to remove + web3.provider.set(provider); +}; + +module.exports = web3; + |