go-ethereum/jsre/ethereum_js.go

// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library 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.
//
// The go-ethereum library 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 the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.

package jsre

const Web3_JS = `
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){
module.exports=[
  {
    "constant": true,
    "inputs": [
      {
        "name": "_owner",
        "type": "address"
      }
    ],
    "name": "name",
    "outputs": [
      {
        "name": "o_name",
        "type": "bytes32"
      }
    ],
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      }
    ],
    "name": "owner",
    "outputs": [
      {
        "name": "",
        "type": "address"
      }
    ],
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      }
    ],
    "name": "content",
    "outputs": [
      {
        "name": "",
        "type": "bytes32"
      }
    ],
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      }
    ],
    "name": "addr",
    "outputs": [
      {
        "name": "",
        "type": "address"
      }
    ],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      }
    ],
    "name": "reserve",
    "outputs": [],
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      }
    ],
    "name": "subRegistrar",
    "outputs": [
      {
        "name": "",
        "type": "address"
      }
    ],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      },
      {
        "name": "_newOwner",
        "type": "address"
      }
    ],
    "name": "transfer",
    "outputs": [],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      },
      {
        "name": "_registrar",
        "type": "address"
      }
    ],
    "name": "setSubRegistrar",
    "outputs": [],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [],
    "name": "Registrar",
    "outputs": [],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      },
      {
        "name": "_a",
        "type": "address"
      },
      {
        "name": "_primary",
        "type": "bool"
      }
    ],
    "name": "setAddress",
    "outputs": [],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      },
      {
        "name": "_content",
        "type": "bytes32"
      }
    ],
    "name": "setContent",
    "outputs": [],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      }
    ],
    "name": "disown",
    "outputs": [],
    "type": "function"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "name": "_name",
        "type": "bytes32"
      },
      {
        "indexed": false,
        "name": "_winner",
        "type": "address"
      }
    ],
    "name": "AuctionEnded",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "name": "_name",
        "type": "bytes32"
      },
      {
        "indexed": false,
        "name": "_bidder",
        "type": "address"
      },
      {
        "indexed": false,
        "name": "_value",
        "type": "uint256"
      }
    ],
    "name": "NewBid",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "name": "name",
        "type": "bytes32"
      }
    ],
    "name": "Changed",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "name": "name",
        "type": "bytes32"
      },
      {
        "indexed": true,
        "name": "addr",
        "type": "address"
      }
    ],
    "name": "PrimaryChanged",
    "type": "event"
  }
]
},{}],2:[function(require,module,exports){
module.exports=[
  {
    "constant": true,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      }
    ],
    "name": "owner",
    "outputs": [
      {
        "name": "",
        "type": "address"
      }
    ],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      },
      {
        "name": "_refund",
        "type": "address"
      }
    ],
    "name": "disown",
    "outputs": [],
    "type": "function"
  },
  {
    "constant": true,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      }
    ],
    "name": "addr",
    "outputs": [
      {
        "name": "",
        "type": "address"
      }
    ],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      }
    ],
    "name": "reserve",
    "outputs": [],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      },
      {
        "name": "_newOwner",
        "type": "address"
      }
    ],
    "name": "transfer",
    "outputs": [],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "_name",
        "type": "bytes32"
      },
      {
        "name": "_a",
        "type": "address"
      }
    ],
    "name": "setAddr",
    "outputs": [],
    "type": "function"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "name": "name",
        "type": "bytes32"
      }
    ],
    "name": "Changed",
    "type": "event"
  }
]
},{}],3:[function(require,module,exports){
module.exports=[
  {
    "constant": false,
    "inputs": [
      {
        "name": "from",
        "type": "bytes32"
      },
      {
        "name": "to",
        "type": "address"
      },
      {
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "transfer",
    "outputs": [],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "from",
        "type": "bytes32"
      },
      {
        "name": "to",
        "type": "address"
      },
      {
        "name": "indirectId",
        "type": "bytes32"
      },
      {
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "icapTransfer",
    "outputs": [],
    "type": "function"
  },
  {
    "constant": false,
    "inputs": [
      {
        "name": "to",
        "type": "bytes32"
      }
    ],
    "name": "deposit",
    "outputs": [],
    "type": "function"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "name": "from",
        "type": "address"
      },
      {
        "indexed": false,
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "AnonymousDeposit",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "name": "from",
        "type": "address"
      },
      {
        "indexed": true,
        "name": "to",
        "type": "bytes32"
      },
      {
        "indexed": false,
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "Deposit",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "name": "from",
        "type": "bytes32"
      },
      {
        "indexed": true,
        "name": "to",
        "type": "address"
      },
      {
        "indexed": false,
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "Transfer",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "name": "from",
        "type": "bytes32"
      },
      {
        "indexed": true,
        "name": "to",
        "type": "address"
      },
      {
        "indexed": false,
        "name": "indirectId",
        "type": "bytes32"
      },
      {
        "indexed": false,
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "IcapTransfer",
    "type": "event"
  }
]
},{}],4:[function(require,module,exports){
var f = require('./formatters');
var SolidityType = require('./type');

/**
 * SolidityTypeAddress is a prootype that represents address type
 * It matches:
 * address
 * address[]
 * address[4]
 * address[][]
 * address[3][]
 * address[][6][], ...
 */
var SolidityTypeAddress = function () {
    this._inputFormatter = f.formatInputInt;
    this._outputFormatter = f.formatOutputAddress;
};

SolidityTypeAddress.prototype = new SolidityType({});
SolidityTypeAddress.prototype.constructor = SolidityTypeAddress;

SolidityTypeAddress.prototype.isType = function (name) {
    return !!name.match(/address(\[([0-9]*)\])?/);
};

SolidityTypeAddress.prototype.staticPartLength = function (name) {
    return 32 * this.staticArrayLength(name);
};

module.exports = SolidityTypeAddress;


},{"./formatters":9,"./type":14}],5:[function(require,module,exports){
var f = require('./formatters');
var SolidityType = require('./type');

/**
 * SolidityTypeBool is a prootype that represents bool type
 * It matches:
 * bool
 * bool[]
 * bool[4]
 * bool[][]
 * bool[3][]
 * bool[][6][], ...
 */
var SolidityTypeBool = function () {
    this._inputFormatter = f.formatInputBool;
    this._outputFormatter = f.formatOutputBool;
};

SolidityTypeBool.prototype = new SolidityType({});
SolidityTypeBool.prototype.constructor = SolidityTypeBool;

SolidityTypeBool.prototype.isType = function (name) {
    return !!name.match(/^bool(\[([0-9]*)\])*$/);
};

SolidityTypeBool.prototype.staticPartLength = function (name) {
    return 32 * this.staticArrayLength(name);
};

module.exports = SolidityTypeBool;

},{"./formatters":9,"./type":14}],6:[function(require,module,exports){
var f = require('./formatters');
var SolidityType = require('./type');

/**
 * SolidityTypeBytes is a prootype that represents bytes type
 * It matches:
 * bytes
 * bytes[]
 * bytes[4]
 * bytes[][]
 * bytes[3][]
 * bytes[][6][], ...
 * bytes32
 * bytes64[]
 * bytes8[4]
 * bytes256[][]
 * bytes[3][]
 * bytes64[][6][], ...
 */
var SolidityTypeBytes = function () {
    this._inputFormatter = f.formatInputBytes;
    this._outputFormatter = f.formatOutputBytes;
};

SolidityTypeBytes.prototype = new SolidityType({});
SolidityTypeBytes.prototype.constructor = SolidityTypeBytes;

SolidityTypeBytes.prototype.isType = function (name) {
    return !!name.match(/^bytes([0-9]{1,})(\[([0-9]*)\])*$/);
};

SolidityTypeBytes.prototype.staticPartLength = function (name) {
    var matches = name.match(/^bytes([0-9]*)/);
    var size = parseInt(matches[1]);
    return size * this.staticArrayLength(name);
};

module.exports = SolidityTypeBytes;

},{"./formatters":9,"./type":14}],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 coder.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var f = require('./formatters');

var SolidityTypeAddress = require('./address');
var SolidityTypeBool = require('./bool');
var SolidityTypeInt = require('./int');
var SolidityTypeUInt = require('./uint');
var SolidityTypeDynamicBytes = require('./dynamicbytes');
var SolidityTypeString = require('./string');
var SolidityTypeReal = require('./real');
var SolidityTypeUReal = require('./ureal');
var SolidityTypeBytes = require('./bytes');

/**
 * SolidityCoder prototype should be used to encode/decode solidity params of any type
 */
var SolidityCoder = function (types) {
    this._types = types;
};

/**
 * This method should be used to transform type to SolidityType
 *
 * @method _requireType
 * @param {String} type
 * @returns {SolidityType} 
 * @throws {Error} throws if no matching type is found
 */
SolidityCoder.prototype._requireType = function (type) {
    var solidityType = this._types.filter(function (t) {
        return t.isType(type);
    })[0];

    if (!solidityType) {
        throw Error('invalid solidity type!: ' + type);
    }

    return solidityType;
};

/**
 * Should be used to encode plain param
 *
 * @method encodeParam
 * @param {String} type
 * @param {Object} plain param
 * @return {String} encoded plain param
 */
SolidityCoder.prototype.encodeParam = function (type, param) {
    return this.encodeParams([type], [param]);
};

/**
 * Should be used to encode list of params
 *
 * @method encodeParams
 * @param {Array} types
 * @param {Array} params
 * @return {String} encoded list of params
 */
SolidityCoder.prototype.encodeParams = function (types, params) {
    var solidityTypes = this.getSolidityTypes(types);

    var encodeds = solidityTypes.map(function (solidityType, index) {
        return solidityType.encode(params[index], types[index]);
    });

    var dynamicOffset = solidityTypes.reduce(function (acc, solidityType, index) {
        return acc + solidityType.staticPartLength(types[index]);
    }, 0);

    var result = this.encodeMultiWithOffset(types, solidityTypes, encodeds, dynamicOffset); 

    return result;
};

SolidityCoder.prototype.encodeMultiWithOffset = function (types, solidityTypes, encodeds, dynamicOffset) {
    var result = "";
    var self = this;

    var isDynamic = function (i) {
       return solidityTypes[i].isDynamicArray(types[i]) || solidityTypes[i].isDynamicType(types[i]);
    };

    types.forEach(function (type, i) {
        if (isDynamic(i)) {
            result += f.formatInputInt(dynamicOffset).encode();
            var e = self.encodeWithOffset(types[i], solidityTypes[i], encodeds[i], dynamicOffset);
            dynamicOffset += e.length / 2;
        } else {
            // don't add length to dynamicOffset. it's already counted
            result += self.encodeWithOffset(types[i], solidityTypes[i], encodeds[i], dynamicOffset);
        }

        // TODO: figure out nested arrays
    });
    
    types.forEach(function (type, i) {
        if (isDynamic(i)) {
            var e = self.encodeWithOffset(types[i], solidityTypes[i], encodeds[i], dynamicOffset);
            dynamicOffset += e.length / 2;
            result += e;
        }
    });
    return result;
};

// TODO: refactor whole encoding!
SolidityCoder.prototype.encodeWithOffset = function (type, solidityType, encoded, offset) {
    var self = this;
    if (solidityType.isDynamicArray(type)) {
        return (function () {
            // offset was already set
            var nestedName = solidityType.nestedName(type);
            var nestedStaticPartLength = solidityType.staticPartLength(nestedName);
            var result = encoded[0];
            
            (function () {
                var previousLength = 2; // in int
                if (solidityType.isDynamicArray(nestedName)) {
                    for (var i = 1; i < encoded.length; i++) {
                        previousLength += +(encoded[i - 1])[0] || 0;
                        result += f.formatInputInt(offset + i * nestedStaticPartLength + previousLength * 32).encode();
                    }
                }
            })();
            
            // first element is length, skip it
            (function () {
                for (var i = 0; i < encoded.length - 1; i++) {
                    var additionalOffset = result / 2;
                    result += self.encodeWithOffset(nestedName, solidityType, encoded[i + 1], offset +  additionalOffset);
                }
            })();

            return result;
        })();
       
    } else if (solidityType.isStaticArray(type)) {
        return (function () {
            var nestedName = solidityType.nestedName(type);
            var nestedStaticPartLength = solidityType.staticPartLength(nestedName);
            var result = "";


            if (solidityType.isDynamicArray(nestedName)) {
                (function () {
                    var previousLength = 0; // in int
                    for (var i = 0; i < encoded.length; i++) {
                        // calculate length of previous item
                        previousLength += +(encoded[i - 1] || [])[0] || 0; 
                        result += f.formatInputInt(offset + i * nestedStaticPartLength + previousLength * 32).encode();
                    }
                })();
            }

            (function () {
                for (var i = 0; i < encoded.length; i++) {
                    var additionalOffset = result / 2;
                    result += self.encodeWithOffset(nestedName, solidityType, encoded[i], offset + additionalOffset);
                }
            })();

            return result;
        })();
    }

    return encoded;
};

/**
 * Should be used to decode bytes to plain param
 *
 * @method decodeParam
 * @param {String} type
 * @param {String} bytes
 * @return {Object} plain param
 */
SolidityCoder.prototype.decodeParam = function (type, bytes) {
    return this.decodeParams([type], bytes)[0];
};

/**
 * Should be used to decode list of params
 *
 * @method decodeParam
 * @param {Array} types
 * @param {String} bytes
 * @return {Array} array of plain params
 */
SolidityCoder.prototype.decodeParams = function (types, bytes) {
    var solidityTypes = this.getSolidityTypes(types);
    var offsets = this.getOffsets(types, solidityTypes);
        
    return solidityTypes.map(function (solidityType, index) {
        return solidityType.decode(bytes, offsets[index],  types[index], index);
    });
};

SolidityCoder.prototype.getOffsets = function (types, solidityTypes) {
    var lengths =  solidityTypes.map(function (solidityType, index) {
        return solidityType.staticPartLength(types[index]); 
        // get length
    });
    
    for (var i = 0; i < lengths.length; i++) {
         // sum with length of previous element
        var previous = (lengths[i - 1] || 0);
        lengths[i] += previous;
    }

    return lengths.map(function (length, index) {
        // remove the current length, so the length is sum of previous elements
        return length - solidityTypes[index].staticPartLength(types[index]);
    });
};

SolidityCoder.prototype.getSolidityTypes = function (types) {
    var self = this;
    return types.map(function (type) {
        return self._requireType(type);
    });
};

var coder = new SolidityCoder([
    new SolidityTypeAddress(),
    new SolidityTypeBool(),
    new SolidityTypeInt(),
    new SolidityTypeUInt(),
    new SolidityTypeDynamicBytes(),
    new SolidityTypeBytes(),
    new SolidityTypeString(),
    new SolidityTypeReal(),
    new SolidityTypeUReal()
]);

module.exports = coder;


},{"./address":4,"./bool":5,"./bytes":6,"./dynamicbytes":8,"./formatters":9,"./int":10,"./real":12,"./string":13,"./uint":15,"./ureal":16}],8:[function(require,module,exports){
var f = require('./formatters');
var SolidityType = require('./type');

var SolidityTypeDynamicBytes = function () {
    this._inputFormatter = f.formatInputDynamicBytes;
    this._outputFormatter = f.formatOutputDynamicBytes;
};

SolidityTypeDynamicBytes.prototype = new SolidityType({});
SolidityTypeDynamicBytes.prototype.constructor = SolidityTypeDynamicBytes;

SolidityTypeDynamicBytes.prototype.isType = function (name) {
    return !!name.match(/^bytes(\[([0-9]*)\])*$/);
};

SolidityTypeDynamicBytes.prototype.staticPartLength = function (name) {
    return 32 * this.staticArrayLength(name);
};

SolidityTypeDynamicBytes.prototype.isDynamicType = function () {
    return true;
};

module.exports = SolidityTypeDynamicBytes;


},{"./formatters":9,"./type":14}],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 formatters.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var BigNumber = require('bignumber.js');
var utils = require('../utils/utils');
var c = require('../utils/config');
var SolidityParam = require('./param');


/**
 * 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
 *
 * @method formatInputInt
 * @param {String|Number|BigNumber} value that needs to be formatted
 * @returns {SolidityParam}
 */
var formatInputInt = function (value) {
    BigNumber.config(c.ETH_BIGNUMBER_ROUNDING_MODE);
    var result = utils.padLeft(utils.toTwosComplement(value).round().toString(16), 64);
    return new SolidityParam(result);
};

/**
 * Formats input bytes
 *
 * @method formatInputBytes
 * @param {String}
 * @returns {SolidityParam}
 */
var formatInputBytes = function (value) {
    var result = utils.toHex(value).substr(2);
    var l = Math.floor((result.length + 63) / 64);
    result = utils.padRight(result, l * 64);
    return new SolidityParam(result);
};

/**
 * Formats input bytes
 *
 * @method formatDynamicInputBytes
 * @param {String}
 * @returns {SolidityParam}
 */
var formatInputDynamicBytes = function (value) {
    var result = utils.toHex(value).substr(2);
    var length = result.length / 2;
    var l = Math.floor((result.length + 63) / 64);
    result = utils.padRight(result, l * 64);
    return new SolidityParam(formatInputInt(length).value + result);
};

/**
 * Formats input value to byte representation of string
 *
 * @method formatInputString
 * @param {String}
 * @returns {SolidityParam}
 */
var formatInputString = function (value) {
    var result = utils.fromAscii(value).substr(2);
    var length = result.length / 2;
    var l = Math.floor((result.length + 63) / 64);
    result = utils.padRight(result, l * 64);
    return new SolidityParam(formatInputInt(length).value + result);
};

/**
 * Formats input value to byte representation of bool
 *
 * @method formatInputBool
 * @param {Boolean}
 * @returns {SolidityParam}
 */
var formatInputBool = function (value) {
    var result = '000000000000000000000000000000000000000000000000000000000000000' + (value ?  '1' : '0');
    return new SolidityParam(result);
};

/**
 * Formats input value to byte representation of real
 * Values are multiplied by 2^m and encoded as integers
 *
 * @method formatInputReal
 * @param {String|Number|BigNumber}
 * @returns {SolidityParam}
 */
var formatInputReal = function (value) {
    return formatInputInt(new BigNumber(value).times(new BigNumber(2).pow(128)));
};

/**
 * Check if input value is negative
 *
 * @method signedIsNegative
 * @param {String} value is hex format
 * @returns {Boolean} 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 right-aligned output bytes to int
 *
 * @method formatOutputInt
 * @param {SolidityParam} param
 * @returns {BigNumber} right-aligned output bytes formatted to big number
 */
var formatOutputInt = function (param) {
    var value = param.staticPart() || "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 right-aligned output bytes to uint
 *
 * @method formatOutputUInt
 * @param {SolidityParam}
 * @returns {BigNumeber} right-aligned output bytes formatted to uint
 */
var formatOutputUInt = function (param) {
    var value = param.staticPart() || "0";
    return new BigNumber(value, 16);
};

/**
 * Formats right-aligned output bytes to real
 *
 * @method formatOutputReal
 * @param {SolidityParam}
 * @returns {BigNumber} input bytes formatted to real
 */
var formatOutputReal = function (param) {
    return formatOutputInt(param).dividedBy(new BigNumber(2).pow(128)); 
};

/**
 * Formats right-aligned output bytes to ureal
 *
 * @method formatOutputUReal
 * @param {SolidityParam}
 * @returns {BigNumber} input bytes formatted to ureal
 */
var formatOutputUReal = function (param) {
    return formatOutputUInt(param).dividedBy(new BigNumber(2).pow(128)); 
};

/**
 * Should be used to format output bool
 *
 * @method formatOutputBool
 * @param {SolidityParam}
 * @returns {Boolean} right-aligned input bytes formatted to bool
 */
var formatOutputBool = function (param) {
    return param.staticPart() === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false;
};

/**
 * Should be used to format output bytes
 *
 * @method formatOutputBytes
 * @param {SolidityParam} left-aligned hex representation of string
 * @returns {String} hex string
 */
var formatOutputBytes = function (param) {
    return '0x' + param.staticPart();
};

/**
 * Should be used to format output bytes
 *
 * @method formatOutputDynamicBytes
 * @param {SolidityParam} left-aligned hex representation of string
 * @returns {String} hex string
 */
var formatOutputDynamicBytes = function (param) {
    var length = (new BigNumber(param.dynamicPart().slice(0, 64), 16)).toNumber() * 2;
    return '0x' + param.dynamicPart().substr(64, length);
};

/**
 * Should be used to format output string
 *
 * @method formatOutputString
 * @param {SolidityParam} left-aligned hex representation of string
 * @returns {String} ascii string
 */
var formatOutputString = function (param) {
    var length = (new BigNumber(param.dynamicPart().slice(0, 64), 16)).toNumber() * 2;
    return utils.toAscii(param.dynamicPart().substr(64, length));
};

/**
 * Should be used to format output address
 *
 * @method formatOutputAddress
 * @param {SolidityParam} right-aligned input bytes
 * @returns {String} address
 */
var formatOutputAddress = function (param) {
    var value = param.staticPart();
    return "0x" + value.slice(value.length - 40, value.length);
};

module.exports = {
    formatInputInt: formatInputInt,
    formatInputBytes: formatInputBytes,
    formatInputDynamicBytes: formatInputDynamicBytes,
    formatInputString: formatInputString,
    formatInputBool: formatInputBool,
    formatInputReal: formatInputReal,
    formatOutputInt: formatOutputInt,
    formatOutputUInt: formatOutputUInt,
    formatOutputReal: formatOutputReal,
    formatOutputUReal: formatOutputUReal,
    formatOutputBool: formatOutputBool,
    formatOutputBytes: formatOutputBytes,
    formatOutputDynamicBytes: formatOutputDynamicBytes,
    formatOutputString: formatOutputString,
    formatOutputAddress: formatOutputAddress
};


},{"../utils/config":18,"../utils/utils":20,"./param":11,"bignumber.js":"bignumber.js"}],10:[function(require,module,exports){
var f = require('./formatters');
var SolidityType = require('./type');

/**
 * SolidityTypeInt is a prootype that represents int type
 * It matches:
 * int
 * int[]
 * int[4]
 * int[][]
 * int[3][]
 * int[][6][], ...
 * int32
 * int64[]
 * int8[4]
 * int256[][]
 * int[3][]
 * int64[][6][], ...
 */
var SolidityTypeInt = function () {
    this._inputFormatter = f.formatInputInt;
    this._outputFormatter = f.formatOutputInt;
};

SolidityTypeInt.prototype = new SolidityType({});
SolidityTypeInt.prototype.constructor = SolidityTypeInt;

SolidityTypeInt.prototype.isType = function (name) {
    return !!name.match(/^int([0-9]*)?(\[([0-9]*)\])*$/);
};

SolidityTypeInt.prototype.staticPartLength = function (name) {
    return 32 * this.staticArrayLength(name);
};

module.exports = SolidityTypeInt;

},{"./formatters":9,"./type":14}],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 <http://www.gnu.org/licenses/>.
*/
/** 
 * @file param.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var utils = require('../utils/utils');

/**
 * SolidityParam object prototype.
 * Should be used when encoding, decoding solidity bytes
 */
var SolidityParam = function (value, offset) {
    this.value = value || '';
    this.offset = offset; // offset in bytes
};

/**
 * This method should be used to get length of params's dynamic part
 * 
 * @method dynamicPartLength
 * @returns {Number} length of dynamic part (in bytes)
 */
SolidityParam.prototype.dynamicPartLength = function () {
    return this.dynamicPart().length / 2;
};

/**
 * This method should be used to create copy of solidity param with different offset
 *
 * @method withOffset
 * @param {Number} offset length in bytes
 * @returns {SolidityParam} new solidity param with applied offset
 */
SolidityParam.prototype.withOffset = function (offset) {
    return new SolidityParam(this.value, offset);
};

/**
 * This method should be used to combine solidity params together
 * eg. when appending an array
 *
 * @method combine
 * @param {SolidityParam} param with which we should combine
 * @param {SolidityParam} result of combination
 */
SolidityParam.prototype.combine = function (param) {
    return new SolidityParam(this.value + param.value); 
};

/**
 * This method should be called to check if param has dynamic size.
 * If it has, it returns true, otherwise false
 *
 * @method isDynamic
 * @returns {Boolean}
 */
SolidityParam.prototype.isDynamic = function () {
    return this.offset !== undefined;
};

/**
 * This method should be called to transform offset to bytes
 *
 * @method offsetAsBytes
 * @returns {String} bytes representation of offset
 */
SolidityParam.prototype.offsetAsBytes = function () {
    return !this.isDynamic() ? '' : utils.padLeft(utils.toTwosComplement(this.offset).toString(16), 64);
};

/**
 * This method should be called to get static part of param
 *
 * @method staticPart
 * @returns {String} offset if it is a dynamic param, otherwise value
 */
SolidityParam.prototype.staticPart = function () {
    if (!this.isDynamic()) {
        return this.value; 
    } 
    return this.offsetAsBytes();
};

/**
 * This method should be called to get dynamic part of param
 *
 * @method dynamicPart
 * @returns {String} returns a value if it is a dynamic param, otherwise empty string
 */
SolidityParam.prototype.dynamicPart = function () {
    return this.isDynamic() ? this.value : '';
};

/**
 * This method should be called to encode param
 *
 * @method encode
 * @returns {String}
 */
SolidityParam.prototype.encode = function () {
    return this.staticPart() + this.dynamicPart();
};

/**
 * This method should be called to encode array of params
 *
 * @method encodeList
 * @param {Array[SolidityParam]} params
 * @returns {String}
 */
SolidityParam.encodeList = function (params) {
    
    // updating offsets
    var totalOffset = params.length * 32;
    var offsetParams = params.map(function (param) {
        if (!param.isDynamic()) {
            return param;
        }
        var offset = totalOffset;
        totalOffset += param.dynamicPartLength();
        return param.withOffset(offset);
    });

    // encode everything!
    return offsetParams.reduce(function (result, param) {
        return result + param.dynamicPart();
    }, offsetParams.reduce(function (result, param) {
        return result + param.staticPart();
    }, ''));
};



module.exports = SolidityParam;


},{"../utils/utils":20}],12:[function(require,module,exports){
var f = require('./formatters');
var SolidityType = require('./type');

/**
 * SolidityTypeReal is a prootype that represents real type
 * It matches:
 * real
 * real[]
 * real[4]
 * real[][]
 * real[3][]
 * real[][6][], ...
 * real32
 * real64[]
 * real8[4]
 * real256[][]
 * real[3][]
 * real64[][6][], ...
 */
var SolidityTypeReal = function () {
    this._inputFormatter = f.formatInputReal;
    this._outputFormatter = f.formatOutputReal;
};

SolidityTypeReal.prototype = new SolidityType({});
SolidityTypeReal.prototype.constructor = SolidityTypeReal;

SolidityTypeReal.prototype.isType = function (name) {
    return !!name.match(/real([0-9]*)?(\[([0-9]*)\])?/);
};

SolidityTypeReal.prototype.staticPartLength = function (name) {
    return 32 * this.staticArrayLength(name);
};

module.exports = SolidityTypeReal;

},{"./formatters":9,"./type":14}],13:[function(require,module,exports){
var f = require('./formatters');
var SolidityType = require('./type');

var SolidityTypeString = function () {
    this._inputFormatter = f.formatInputString;
    this._outputFormatter = f.formatOutputString;
};

SolidityTypeString.prototype = new SolidityType({});
SolidityTypeString.prototype.constructor = SolidityTypeString;

SolidityTypeString.prototype.isType = function (name) {
    return !!name.match(/^string(\[([0-9]*)\])*$/);
};

SolidityTypeString.prototype.staticPartLength = function (name) {
    return 32 * this.staticArrayLength(name);
};

SolidityTypeString.prototype.isDynamicType = function () {
    return true;
};

module.exports = SolidityTypeString;


},{"./formatters":9,"./type":14}],14:[function(require,module,exports){
var f = require('./formatters');
var SolidityParam = require('./param');

/**
 * SolidityType prototype is used to encode/decode solidity params of certain type
 */
var SolidityType = function (config) {
    this._inputFormatter = config.inputFormatter;
    this._outputFormatter = config.outputFormatter;
};

/**
 * Should be used to determine if this SolidityType do match given name
 *
 * @method isType
 * @param {String} name
 * @return {Bool} true if type match this SolidityType, otherwise false
 */
SolidityType.prototype.isType = function (name) {
    throw "this method should be overrwritten for type " + name;
};

/**
 * Should be used to determine what is the length of static part in given type
 *
 * @method staticPartLength
 * @param {String} name
 * @return {Number} length of static part in bytes
 */
SolidityType.prototype.staticPartLength = function (name) {
    throw "this method should be overrwritten for type: " + name;
};

/**
 * Should be used to determine if type is dynamic array
 * eg: 
 * "type[]" => true
 * "type[4]" => false
 *
 * @method isDynamicArray
 * @param {String} name
 * @return {Bool} true if the type is dynamic array 
 */
SolidityType.prototype.isDynamicArray = function (name) {
    var nestedTypes = this.nestedTypes(name);
    return !!nestedTypes && !nestedTypes[nestedTypes.length - 1].match(/[0-9]{1,}/g);
};

/**
 * Should be used to determine if type is static array
 * eg: 
 * "type[]" => false
 * "type[4]" => true
 *
 * @method isStaticArray
 * @param {String} name
 * @return {Bool} true if the type is static array 
 */
SolidityType.prototype.isStaticArray = function (name) {
    var nestedTypes = this.nestedTypes(name);
    return !!nestedTypes && !!nestedTypes[nestedTypes.length - 1].match(/[0-9]{1,}/g);
};

/**
 * Should return length of static array
 * eg. 
 * "int[32]" => 32
 * "int256[14]" => 14
 * "int[2][3]" => 3
 * "int" => 1
 * "int[1]" => 1
 * "int[]" => 1
 *
 * @method staticArrayLength
 * @param {String} name
 * @return {Number} static array length
 */
SolidityType.prototype.staticArrayLength = function (name) {
    var nestedTypes = this.nestedTypes(name);
    if (nestedTypes) {
       return parseInt(nestedTypes[nestedTypes.length - 1].match(/[0-9]{1,}/g) || 1);
    }
    return 1;
};

/**
 * Should return nested type
 * eg.
 * "int[32]" => "int"
 * "int256[14]" => "int256"
 * "int[2][3]" => "int[2]"
 * "int" => "int"
 * "int[]" => "int"
 *
 * @method nestedName
 * @param {String} name
 * @return {String} nested name
 */
SolidityType.prototype.nestedName = function (name) {
    // remove last [] in name
    var nestedTypes = this.nestedTypes(name);
    if (!nestedTypes) {
        return name;
    }

    return name.substr(0, name.length - nestedTypes[nestedTypes.length - 1].length);
};

/**
 * Should return true if type has dynamic size by default
 * such types are "string", "bytes"
 *
 * @method isDynamicType
 * @param {String} name
 * @return {Bool} true if is dynamic, otherwise false
 */
SolidityType.prototype.isDynamicType = function () {
    return false;
};

/**
 * Should return array of nested types
 * eg.
 * "int[2][3][]" => ["[2]", "[3]", "[]"]
 * "int[] => ["[]"]
 * "int" => null
 *
 * @method nestedTypes
 * @param {String} name
 * @return {Array} array of nested types
 */
SolidityType.prototype.nestedTypes = function (name) {
    // return list of strings eg. "[]", "[3]", "[]", "[2]"
    return name.match(/(\[[0-9]*\])/g);
};

/**
 * Should be used to encode the value
 *
 * @method encode
 * @param {Object} value 
 * @param {String} name
 * @return {String} encoded value
 */
SolidityType.prototype.encode = function (value, name) {
    var self = this;
    if (this.isDynamicArray(name)) {

        return (function () {
            var length = value.length;                          // in int
            var nestedName = self.nestedName(name);

            var result = [];
            result.push(f.formatInputInt(length).encode());
            
            value.forEach(function (v) {
                result.push(self.encode(v, nestedName));
            });

            return result;
        })();

    } else if (this.isStaticArray(name)) {

        return (function () {
            var length = self.staticArrayLength(name);          // in int
            var nestedName = self.nestedName(name);

            var result = [];
            for (var i = 0; i < length; i++) {
                result.push(self.encode(value[i], nestedName));
            }

            return result;
        })();

    }

    return this._inputFormatter(value, name).encode();
};

/**
 * Should be used to decode value from bytes
 *
 * @method decode
 * @param {String} bytes
 * @param {Number} offset in bytes
 * @param {String} name type name
 * @returns {Object} decoded value
 */
SolidityType.prototype.decode = function (bytes, offset, name) {
    var self = this;

    if (this.isDynamicArray(name)) {

        return (function () {
            var arrayOffset = parseInt('0x' + bytes.substr(offset * 2, 64)); // in bytes
            var length = parseInt('0x' + bytes.substr(arrayOffset * 2, 64)); // in int
            var arrayStart = arrayOffset + 32; // array starts after length; // in bytes

            var nestedName = self.nestedName(name);
            var nestedStaticPartLength = self.staticPartLength(nestedName);  // in bytes
            var result = [];

            for (var i = 0; i < length * nestedStaticPartLength; i += nestedStaticPartLength) {
                result.push(self.decode(bytes, arrayStart + i, nestedName));
            }

            return result;
        })();

    } else if (this.isStaticArray(name)) {

        return (function () {
            var length = self.staticArrayLength(name);                      // in int
            var arrayStart = offset;                                        // in bytes

            var nestedName = self.nestedName(name);
            var nestedStaticPartLength = self.staticPartLength(nestedName); // in bytes
            var result = [];

            for (var i = 0; i < length * nestedStaticPartLength; i += nestedStaticPartLength) {
                result.push(self.decode(bytes, arrayStart + i, nestedName));
            }

            return result;
        })();
    } else if (this.isDynamicType(name)) {
        
        return (function () {
            var dynamicOffset = parseInt('0x' + bytes.substr(offset * 2, 64));      // in bytes
            var length = parseInt('0x' + bytes.substr(dynamicOffset * 2, 64));      // in bytes
            var roundedLength = Math.floor((length + 31) / 32);                     // in int
        
            return self._outputFormatter(new SolidityParam(bytes.substr(dynamicOffset * 2, ( 1 + roundedLength) * 64), 0));
        })();
    }

    var length = this.staticPartLength(name);
    return this._outputFormatter(new SolidityParam(bytes.substr(offset * 2, length * 2)));
};

module.exports = SolidityType;

},{"./formatters":9,"./param":11}],15:[function(require,module,exports){
var f = require('./formatters');
var SolidityType = require('./type');

/**
 * SolidityTypeUInt is a prootype that represents uint type
 * It matches:
 * uint
 * uint[]
 * uint[4]
 * uint[][]
 * uint[3][]
 * uint[][6][], ...
 * uint32
 * uint64[]
 * uint8[4]
 * uint256[][]
 * uint[3][]
 * uint64[][6][], ...
 */
var SolidityTypeUInt = function () {
    this._inputFormatter = f.formatInputInt;
    this._outputFormatter = f.formatOutputInt;
};

SolidityTypeUInt.prototype = new SolidityType({});
SolidityTypeUInt.prototype.constructor = SolidityTypeUInt;

SolidityTypeUInt.prototype.isType = function (name) {
    return !!name.match(/^uint([0-9]*)?(\[([0-9]*)\])*$/);
};

SolidityTypeUInt.prototype.staticPartLength = function (name) {
    return 32 * this.staticArrayLength(name);
};

module.exports = SolidityTypeUInt;

},{"./formatters":9,"./type":14}],16:[function(require,module,exports){
var f = require('./formatters');
var SolidityType = require('./type');

/**
 * SolidityTypeUReal is a prootype that represents ureal type
 * It matches:
 * ureal
 * ureal[]
 * ureal[4]
 * ureal[][]
 * ureal[3][]
 * ureal[][6][], ...
 * ureal32
 * ureal64[]
 * ureal8[4]
 * ureal256[][]
 * ureal[3][]
 * ureal64[][6][], ...
 */
var SolidityTypeUReal = function () {
    this._inputFormatter = f.formatInputReal;
    this._outputFormatter = f.formatOutputUReal;
};

SolidityTypeUReal.prototype = new SolidityType({});
SolidityTypeUReal.prototype.constructor = SolidityTypeUReal;

SolidityTypeUReal.prototype.isType = function (name) {
    return !!name.match(/^ureal([0-9]*)?(\[([0-9]*)\])*$/);
};

SolidityTypeUReal.prototype.staticPartLength = function (name) {
    return 32 * this.staticArrayLength(name);
};

module.exports = SolidityTypeUReal;

},{"./formatters":9,"./type":14}],17:[function(require,module,exports){
'use strict';

// go env doesn't have and need XMLHttpRequest
if (typeof XMLHttpRequest === 'undefined') {
    exports.XMLHttpRequest = {};
} else {
    exports.XMLHttpRequest = XMLHttpRequest; // jshint ignore:line
}


},{}],18:[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 config.js
 * @authors:
 *   Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

/**
 * Utils
 * 
 * @module utils
 */

/**
 * Utility functions
 * 
 * @class [utils] config
 * @constructor
 */


/// required to define ETH_BIGNUMBER_ROUNDING_MODE
var BigNumber = require('bignumber.js');

var ETH_UNITS = [
    'wei',
    'kwei',
    'Mwei',
    'Gwei',
    'szabo',
    'finney',
    'femtoether',
    'picoether',
    'nanoether',
    'microether',
    'milliether',
    'nano',
    'micro',
    'milli',
    '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 },
    ETH_POLLING_TIMEOUT: 1000/2,
    defaultBlock: 'latest',
    defaultAccount: undefined
};


},{"bignumber.js":"bignumber.js"}],19:[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 sha3.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */


var utils = require('./utils');
var sha3 = require('crypto-js/sha3');

module.exports = function (str, isNew) {
    if (str.substr(0, 2) === '0x' && !isNew) {
        console.warn('requirement of using web3.fromAscii before sha3 is deprecated');
        console.warn('new usage: \'web3.sha3("hello")\'');
        console.warn('see https://github.com/ethereum/web3.js/pull/205');
        console.warn('if you need to hash hex value, you can do \'sha3("0xfff", true)\'');
        str = utils.toAscii(str);
    }

    return sha3(str, {
        outputLength: 256
    }).toString();
};


},{"./utils":20,"crypto-js/sha3":47}],20:[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 utils.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

/**
 * Utils
 * 
 * @module utils
 */

/**
 * Utility functions
 * 
 * @class [utils] utils
 * @constructor
 */


var BigNumber = require('bignumber.js');

var unitMap = {
    'wei':          '1',
    'kwei':         '1000',
    'ada':          '1000',
    'femtoether':   '1000',
    'mwei':         '1000000',
    'babbage':      '1000000',
    'picoether':    '1000000',
    'gwei':         '1000000000',
    'shannon':      '1000000000',
    'nanoether':    '1000000000',
    'nano':         '1000000000',
    'szabo':        '1000000000000',
    'microether':   '1000000000000',
    'micro':        '1000000000000',
    'finney':       '1000000000000000',
    'milliether':    '1000000000000000',
    'milli':         '1000000000000000',
    'ether':        '1000000000000000000',
    'kether':       '1000000000000000000000',
    'grand':        '1000000000000000000000',
    'einstein':     '1000000000000000000000',
    'mether':       '1000000000000000000000000',
    'gether':       '1000000000000000000000000000',
    'tether':       '1000000000000000000000000000000'
};

/**
 * Should be called to pad string to expected length
 *
 * @method padLeft
 * @param {String} string to be padded
 * @param {Number} characters that result string should have
 * @param {String} sign, by default 0
 * @returns {String} right aligned string
 */
var padLeft = function (string, chars, sign) {
    return new Array(chars - string.length + 1).join(sign ? sign : "0") + string;
};

/**
 * Should be called to pad string to expected length
 *
 * @method padRight
 * @param {String} string to be padded
 * @param {Number} characters that result string should have
 * @param {String} sign, by default 0
 * @returns {String} right aligned string
 */
var padRight = function (string, chars, sign) {
    return string + (new Array(chars - string.length + 1).join(sign ? sign : "0"));
};

/** 
 * Should be called to get sting from it's hex representation
 * TODO: it should be called toUTF8
 *
 * @method toAscii
 * @param {String} string in hex
 * @returns {String} ascii string representation of hex value
 */
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);
        str += String.fromCharCode(code);
    }

    return decodeURIComponent(escape(str)); // jshint ignore:line
};
    
/**
 * Shold be called to get hex representation (prefixed by 0x) of ascii string 
 *
 * @method toHexNative
 * @param {String} string
 * @returns {String} hex representation of input string
 */
var toHexNative = function(str) {
    str = unescape(encodeURIComponent(str)); // jshint ignore:line
    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;
};

/**
 * Shold be called to get hex representation (prefixed by 0x) of ascii string 
 *
 * @method fromAscii
 * @param {String} string
 * @param {Number} optional padding
 * @returns {String} hex representation of input string
 */
var fromAscii = function(str, pad) {
    pad = pad === undefined ? 0 : pad;
    var hex = toHexNative(str);
    while (hex.length < pad*2)
        hex += "00";
    return "0x" + hex;
};

/**
 * Should be used to create full function/event name from json abi
 *
 * @method transformToFullName
 * @param {Object} json-abi
 * @return {String} full fnction/event name
 */
var transformToFullName = function (json) {
    if (json.name.indexOf('(') !== -1) {
        return json.name;
    }

    var typeName = json.inputs.map(function(i){return i.type; }).join();
    return json.name + '(' + typeName + ')';
};

/**
 * Should be called to get display name of contract function
 * 
 * @method extractDisplayName
 * @param {String} name of function/event
 * @returns {String} 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)).replace(' ', '') : "";
};

/**
 * Converts value to it's decimal representation in string
 *
 * @method toDecimal
 * @param {String|Number|BigNumber}
 * @return {String}
 */
var toDecimal = function (value) {
    return toBigNumber(value).toNumber();
};

/**
 * Converts value to it's hex representation
 *
 * @method fromDecimal
 * @param {String|Number|BigNumber}
 * @return {String}
 */
var fromDecimal = function (value) {
    var number = toBigNumber(value);
    var result = number.toString(16);

    return number.lessThan(0) ? '-0x' + result.substr(1) : '0x' + result;
};

/**
 * Auto converts any given value into it's hex representation.
 *
 * And even stringifys objects before.
 *
 * @method toHex
 * @param {String|Number|BigNumber|Object}
 * @return {String}
 */
var toHex = function (val) {
    /*jshint maxcomplexity: 8 */

    if (isBoolean(val))
        return fromDecimal(+val);

    if (isBigNumber(val))
        return fromDecimal(val);

    if (isObject(val))
        return fromAscii(JSON.stringify(val));

    // if its a negative number, pass it through fromDecimal
    if (isString(val)) {
        if (val.indexOf('-0x') === 0)
            return fromDecimal(val);
        else if(val.indexOf('0x') === 0)
            return val;
        else if (!isFinite(val))
            return fromAscii(val);
    }

    return fromDecimal(val);
};

/**
 * Returns value of unit in Wei
 *
 * @method getValueOfUnit
 * @param {String} unit the unit to convert to, default ether
 * @returns {BigNumber} value of the unit (in Wei)
 * @throws error if the unit is not correct:w
 */
var getValueOfUnit = function (unit) {
    unit = unit ? unit.toLowerCase() : 'ether';
    var unitValue = unitMap[unit];
    if (unitValue === undefined) {
        throw new Error('This unit doesn\'t exists, please use the one of the following units' + JSON.stringify(unitMap, null, 2));
    }
    return new BigNumber(unitValue, 10);
};

/**
 * Takes a number of wei and converts it to any other ether unit.
 *
 * Possible units are:
 *   SI Short   SI Full        Effigy       Other
 * - kwei       femtoether     ada
 * - mwei       picoether      babbage
 * - gwei       nanoether      shannon      nano
 * - --         microether     szabo        micro
 * - --         milliether     finney       milli
 * - ether      --             --
 * - kether                    einstein     grand 
 * - mether
 * - gether
 * - tether
 *
 * @method fromWei
 * @param {Number|String} number can be a number, number string or a HEX of a decimal
 * @param {String} unit the unit to convert to, default ether
 * @return {String|Object} When given a BigNumber object it returns one as well, otherwise a number
*/
var fromWei = function(number, unit) {
    var returnValue = toBigNumber(number).dividedBy(getValueOfUnit(unit));

    return isBigNumber(number) ? returnValue : returnValue.toString(10); 
};

/**
 * Takes a number of a unit and converts it to wei.
 *
 * Possible units are:
 *   SI Short   SI Full        Effigy       Other
 * - kwei       femtoether     ada
 * - mwei       picoether      babbage       
 * - gwei       nanoether      shannon      nano
 * - --         microether     szabo        micro
 * - --         milliether     finney       milli
 * - ether      --             --
 * - kether                    einstein     grand 
 * - mether
 * - gether
 * - tether
 *
 * @method toWei
 * @param {Number|String|BigNumber} number can be a number, number string or a HEX of a decimal
 * @param {String} unit the unit to convert from, default ether
 * @return {String|Object} When given a BigNumber object it returns one as well, otherwise a number
*/
var toWei = function(number, unit) {
    var returnValue = toBigNumber(number).times(getValueOfUnit(unit));

    return isBigNumber(number) ? returnValue : returnValue.toString(10); 
};

/**
 * Takes an input and transforms it into an bignumber
 *
 * @method toBigNumber
 * @param {Number|String|BigNumber} a number, string, HEX string or BigNumber
 * @return {BigNumber} BigNumber
*/
var toBigNumber = function(number) {
    /*jshint maxcomplexity:5 */
    number = number || 0;
    if (isBigNumber(number))
        return number;

    if (isString(number) && (number.indexOf('0x') === 0 || number.indexOf('-0x') === 0)) {
        return new BigNumber(number.replace('0x',''), 16);
    }
   
    return new BigNumber(number.toString(10), 10);
};

/**
 * Takes and input transforms it into bignumber and if it is negative value, into two's complement
 *
 * @method toTwosComplement
 * @param {Number|String|BigNumber}
 * @return {BigNumber}
 */
var toTwosComplement = function (number) {
    var bigNumber = toBigNumber(number);
    if (bigNumber.lessThan(0)) {
        return new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16).plus(bigNumber).plus(1);
    }
    return bigNumber;
};

/**
 * Checks if the given string is strictly an address
 *
 * @method isStrictAddress
 * @param {String} address the given HEX adress
 * @return {Boolean}
*/
var isStrictAddress = function (address) {
    return /^0x[0-9a-f]{40}$/.test(address);
};

/**
 * Checks if the given string is an address
 *
 * @method isAddress
 * @param {String} address the given HEX adress
 * @return {Boolean}
*/
var isAddress = function (address) {
    return /^(0x)?[0-9a-f]{40}$/.test(address);
};

/**
 * Transforms given string to valid 20 bytes-length addres with 0x prefix
 *
 * @method toAddress
 * @param {String} address
 * @return {String} formatted address
 */
var toAddress = function (address) {
    if (isStrictAddress(address)) {
        return address;
    }
    
    if (/^[0-9a-f]{40}$/.test(address)) {
        return '0x' + address;
    }

    return '0x' + padLeft(toHex(address).substr(2), 40);
};


/**
 * Returns true if object is BigNumber, otherwise false
 *
 * @method isBigNumber
 * @param {Object}
 * @return {Boolean} 
 */
var isBigNumber = function (object) {
    return object instanceof BigNumber ||
        (object && object.constructor && object.constructor.name === 'BigNumber');
};

/**
 * Returns true if object is string, otherwise false
 * 
 * @method isString
 * @param {Object}
 * @return {Boolean}
 */
var isString = function (object) {
    return typeof object === 'string' ||
        (object && object.constructor && object.constructor.name === 'String');
};

/**
 * Returns true if object is function, otherwise false
 *
 * @method isFunction
 * @param {Object}
 * @return {Boolean}
 */
var isFunction = function (object) {
    return typeof object === 'function';
};

/**
 * Returns true if object is Objet, otherwise false
 *
 * @method isObject
 * @param {Object}
 * @return {Boolean}
 */
var isObject = function (object) {
    return typeof object === 'object';
};

/**
 * Returns true if object is boolean, otherwise false
 *
 * @method isBoolean
 * @param {Object}
 * @return {Boolean}
 */
var isBoolean = function (object) {
    return typeof object === 'boolean';
};

/**
 * Returns true if object is array, otherwise false
 *
 * @method isArray
 * @param {Object}
 * @return {Boolean}
 */
var isArray = function (object) {
    return object instanceof Array; 
};

/**
 * Returns true if given string is valid json object
 * 
 * @method isJson
 * @param {String}
 * @return {Boolean}
 */
var isJson = function (str) {
    try {
        return !!JSON.parse(str);
    } catch (e) {
        return false;
    }
};

module.exports = {
    padLeft: padLeft,
    padRight: padRight,
    toHex: toHex,
    toDecimal: toDecimal,
    fromDecimal: fromDecimal,
    toAscii: toAscii,
    fromAscii: fromAscii,
    transformToFullName: transformToFullName,
    extractDisplayName: extractDisplayName,
    extractTypeName: extractTypeName,
    toWei: toWei,
    fromWei: fromWei,
    toBigNumber: toBigNumber,
    toTwosComplement: toTwosComplement,
    toAddress: toAddress,
    isBigNumber: isBigNumber,
    isStrictAddress: isStrictAddress,
    isAddress: isAddress,
    isFunction: isFunction,
    isString: isString,
    isObject: isObject,
    isBoolean: isBoolean,
    isArray: isArray,
    isJson: isJson
};


},{"bignumber.js":"bignumber.js"}],21:[function(require,module,exports){
module.exports={
    "version": "0.12.1"
}

},{}],22:[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>
 *   Fabian Vogelsteller <fabian@ethdev.com>
 *   Gav Wood <g@ethdev.com>
 * @date 2014
 */

var version = require('./version.json');
var net = require('./web3/methods/net');
var eth = require('./web3/methods/eth');
var db = require('./web3/methods/db');
var shh = require('./web3/methods/shh');
var watches = require('./web3/methods/watches');
var Filter = require('./web3/filter');
var utils = require('./utils/utils');
var formatters = require('./web3/formatters');
var RequestManager = require('./web3/requestmanager');
var c = require('./utils/config');
var Property = require('./web3/property');
var Batch = require('./web3/batch');
var sha3 = require('./utils/sha3');

var web3Properties = [
    new Property({
        name: 'version.client',
        getter: 'web3_clientVersion'
    }),
    new Property({
        name: 'version.network',
        getter: 'net_version',
        inputFormatter: utils.toDecimal
    }),
    new Property({
        name: 'version.ethereum',
        getter: 'eth_protocolVersion',
        inputFormatter: utils.toDecimal
    }),
    new Property({
        name: 'version.whisper',
        getter: 'shh_version',
        inputFormatter: utils.toDecimal
    })
];

/// 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) {
        method.attachToObject(obj);
    });
};

/// 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) {
        property.attachToObject(obj);
    });
};

/// setups web3 object, and it's in-browser executed methods
var web3 = {};
web3.providers = {};
web3.currentProvider = null;
web3.version = {};
web3.version.api = version.version;
web3.eth = {};

/*jshint maxparams:4 */
web3.eth.filter = function (fil, callback) {
    return new Filter(fil, watches.eth(), formatters.outputLogFormatter, callback);
};
/*jshint maxparams:3 */

web3.shh = {};
web3.shh.filter = function (fil, callback) {
    return new Filter(fil, watches.shh(), formatters.outputPostFormatter, callback);
};
web3.net = {};
web3.db = {};
web3.setProvider = function (provider) {
    this.currentProvider = provider;
    RequestManager.getInstance().setProvider(provider);
};
web3.isConnected = function(){
     return (this.currentProvider && this.currentProvider.isConnected());
};
web3.reset = function () {
    RequestManager.getInstance().reset();
    c.defaultBlock = 'latest';
    c.defaultAccount = undefined;
};
web3.toHex = utils.toHex;
web3.toAscii = utils.toAscii;
web3.fromAscii = utils.fromAscii;
web3.toDecimal = utils.toDecimal;
web3.fromDecimal = utils.fromDecimal;
web3.toBigNumber = utils.toBigNumber;
web3.toWei = utils.toWei;
web3.fromWei = utils.fromWei;
web3.isAddress = utils.isAddress;
web3.isIBAN = utils.isIBAN;
web3.sha3 = sha3;
web3.createBatch = function () {
    return new Batch();
};

// ADD defaultblock
Object.defineProperty(web3.eth, 'defaultBlock', {
    get: function () {
        return c.defaultBlock;
    },
    set: function (val) {
        c.defaultBlock = val;
        return val;
    }
});

Object.defineProperty(web3.eth, 'defaultAccount', {
    get: function () {
        return c.defaultAccount;
    },
    set: function (val) {
        c.defaultAccount = val;
        return val;
    }
});


// EXTEND
web3._extend = function(extension){
    /*jshint maxcomplexity: 6 */

    if(extension.property && !web3[extension.property])
        web3[extension.property] = {};

    setupMethods(web3[extension.property] || web3, extension.methods || []);
    setupProperties(web3[extension.property] || web3, extension.properties || []);
};
web3._extend.formatters = formatters;
web3._extend.utils = utils;
web3._extend.Method = require('./web3/method');
web3._extend.Property = require('./web3/property');


/// setups all api methods
setupProperties(web3, web3Properties);
setupMethods(web3.net, net.methods);
setupProperties(web3.net, net.properties);
setupMethods(web3.eth, eth.methods);
setupProperties(web3.eth, eth.properties);
setupMethods(web3.db, db.methods);
setupMethods(web3.shh, shh.methods);

module.exports = web3;


},{"./utils/config":18,"./utils/sha3":19,"./utils/utils":20,"./version.json":21,"./web3/batch":24,"./web3/filter":28,"./web3/formatters":29,"./web3/method":35,"./web3/methods/db":36,"./web3/methods/eth":37,"./web3/methods/net":38,"./web3/methods/shh":39,"./web3/methods/watches":40,"./web3/property":42,"./web3/requestmanager":43}],23:[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 allevents.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2014
 */

var sha3 = require('../utils/sha3');
var SolidityEvent = require('./event');
var formatters = require('./formatters');
var utils = require('../utils/utils');
var Filter = require('./filter');
var watches = require('./methods/watches');

var AllSolidityEvents = function (json, address) {
    this._json = json;
    this._address = address;
};

AllSolidityEvents.prototype.encode = function (options) {
    options = options || {};
    var result = {};

    ['fromBlock', 'toBlock'].filter(function (f) {
        return options[f] !== undefined;
    }).forEach(function (f) {
        result[f] = formatters.inputBlockNumberFormatter(options[f]);
    });

    result.address = this._address;

    return result;
};

AllSolidityEvents.prototype.decode = function (data) {
    data.data = data.data || '';
    data.topics = data.topics || [];

    var eventTopic = data.topics[0].slice(2);
    var match = this._json.filter(function (j) {
        return eventTopic === sha3(utils.transformToFullName(j));
    })[0];

    if (!match) { // cannot find matching event?
        console.warn('cannot find event for log');
        return data;
    }

    var event = new SolidityEvent(match, this._address);
    return event.decode(data);
};

AllSolidityEvents.prototype.execute = function (options, callback) {

    if (utils.isFunction(arguments[arguments.length - 1])) {
        callback = arguments[arguments.length - 1];
        if(arguments.length === 1)
            options = null;
    }

    var o = this.encode(options);
    var formatter = this.decode.bind(this);
    return new Filter(o, watches.eth(), formatter, callback);
};

AllSolidityEvents.prototype.attachToContract = function (contract) {
    var execute = this.execute.bind(this);
    contract.allEvents = execute;
};

module.exports = AllSolidityEvents;


},{"../utils/sha3":19,"../utils/utils":20,"./event":27,"./filter":28,"./formatters":29,"./methods/watches":40}],24:[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 batch.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var RequestManager = require('./requestmanager');
var Jsonrpc = require('./jsonrpc');
var errors = require('./errors');

var Batch = function () {
    this.requests = [];
};

/**
 * Should be called to add create new request to batch request
 *
 * @method add
 * @param {Object} jsonrpc requet object
 */
Batch.prototype.add = function (request) {
    this.requests.push(request);
};

/**
 * Should be called to execute batch request
 *
 * @method execute
 */
Batch.prototype.execute = function () {
    var requests = this.requests;
    RequestManager.getInstance().sendBatch(requests, function (err, results) {
        results = results || [];
        requests.map(function (request, index) {
            return results[index] || {};
        }).forEach(function (result, index) {
            if (requests[index].callback) {

                if (!Jsonrpc.getInstance().isValidResponse(result)) {
                    return requests[index].callback(errors.InvalidResponse(result));
                }

                requests[index].callback(null, (requests[index].format ? requests[index].format(result.result) : result.result));
            }
        });
    }); 
};

module.exports = Batch;


},{"./errors":26,"./jsonrpc":34,"./requestmanager":43}],25:[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
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2014
 */

var web3 = require('../web3'); 
var utils = require('../utils/utils');
var coder = require('../solidity/coder');
var SolidityEvent = require('./event');
var SolidityFunction = require('./function');
var AllEvents = require('./allevents');

/**
 * Should be called to encode constructor params
 *
 * @method encodeConstructorParams
 * @param {Array} abi
 * @param {Array} constructor params
 */
var encodeConstructorParams = function (abi, params) {
    return abi.filter(function (json) {
        return json.type === 'constructor' && json.inputs.length === params.length;
    }).map(function (json) {
        return json.inputs.map(function (input) {
            return input.type;
        });
    }).map(function (types) {
        return coder.encodeParams(types, params);
    })[0] || '';
};

/**
 * Should be called to add functions to contract object
 *
 * @method addFunctionsToContract
 * @param {Contract} contract
 * @param {Array} abi
 */
var addFunctionsToContract = function (contract, abi) {
    abi.filter(function (json) {
        return json.type === 'function';
    }).map(function (json) {
        return new SolidityFunction(json, contract.address);
    }).forEach(function (f) {
        f.attachToContract(contract);
    });
};

/**
 * Should be called to add events to contract object
 *
 * @method addEventsToContract
 * @param {Contract} contract
 * @param {Array} abi
 */
var addEventsToContract = function (contract, abi) {
    var events = abi.filter(function (json) {
        return json.type === 'event';
    });

    var All = new AllEvents(events, contract.address);
    All.attachToContract(contract);
    
    events.map(function (json) {
        return new SolidityEvent(json, contract.address);
    }).forEach(function (e) {
        e.attachToContract(contract);
    });
};

/**
 * Should be called to create new ContractFactory
 *
 * @method contract
 * @param {Array} abi
 * @returns {ContractFactory} new contract factory
 */
var contract = function (abi) {
    return new ContractFactory(abi);
};

/**
 * Should be called to check if the contract gets properly deployed on the blockchain.
 *
 * @method checkForContractAddress
 * @param {Object} contract
 * @param {Function} callback
 * @returns {Undefined}
 */
var checkForContractAddress = function(contract, abi, callback){
    var count = 0,
        callbackFired = false;

    // wait for receipt
    var filter = web3.eth.filter('latest', function(e){
        if(!e && !callbackFired) {
            count++;

            // console.log('Checking for contract address', count);

            // stop watching after 50 blocks (timeout)
            if(count > 50) {
                
                filter.stopWatching();
                callbackFired = true;

                if(callback)
                    callback(new Error('Contract transaction couldn\'t be found after 50 blocks'));
                else
                    throw new Error('Contract transaction couldn\'t be found after 50 blocks');


            } else {

                web3.eth.getTransactionReceipt(contract.transactionHash, function(e, receipt){
                    if(receipt && !callbackFired) {

                        web3.eth.getCode(receipt.contractAddress, function(e, code){
                            /*jshint maxcomplexity: 5 */

                            if(callbackFired)
                                return;
                            
                            filter.stopWatching();
                            callbackFired = true;

                            if(code.length > 2) {

                                // console.log('Contract code deployed!');

                                contract.address = receipt.contractAddress;

                                // attach events and methods
                                addFunctionsToContract(contract, abi);
                                addEventsToContract(contract, abi);

                                // call callback for the second time
                                if(callback)
                                    callback(null, contract);

                            } else {
                                if(callback)
                                    callback(new Error('The contract code couldn\'t be stored, please check your gas amount.'));
                                else
                                    throw new Error('The contract code couldn\'t be stored, please check your gas amount.');
                            }
                        });
                    }
                });
            }
        }
    });
};

/**
 * Should be called to create new ContractFactory instance
 *
 * @method ContractFactory
 * @param {Array} abi
 */
var ContractFactory = function (abi) {
    this.abi = abi;
};

/**
 * Should be called to create new contract on a blockchain
 * 
 * @method new
 * @param {Any} contract constructor param1 (optional)
 * @param {Any} contract constructor param2 (optional)
 * @param {Object} contract transaction object (required)
 * @param {Function} callback
 * @returns {Contract} returns contract instance
 */
ContractFactory.prototype.new = function () {
    var _this = this;
    var contract = new Contract(this.abi);

    // parse arguments
    var options = {}; // required!
    var callback;

    var args = Array.prototype.slice.call(arguments);
    if (utils.isFunction(args[args.length - 1])) {
        callback = args.pop();
    }

    var last = args[args.length - 1];
    if (utils.isObject(last) && !utils.isArray(last)) {
        options = args.pop();
    }

    // throw an error if there are no options

    var bytes = encodeConstructorParams(this.abi, args);
    options.data += bytes;


    if(callback) {

        // wait for the contract address adn check if the code was deployed
        web3.eth.sendTransaction(options, function (err, hash) {
            if (err) {
                callback(err);
            } else {
                // add the transaction hash
                contract.transactionHash = hash;

                // call callback for the first time
                callback(null, contract);

                checkForContractAddress(contract, _this.abi, callback);
            }
        });
    } else {
        var hash = web3.eth.sendTransaction(options);
        // add the transaction hash
        contract.transactionHash = hash;
        checkForContractAddress(contract, _this.abi);
    }

    return contract;
};

/**
 * Should be called to get access to existing contract on a blockchain
 *
 * @method at
 * @param {Address} contract address (required)
 * @param {Function} callback {optional)
 * @returns {Contract} returns contract if no callback was passed,
 * otherwise calls callback function (err, contract)
 */
ContractFactory.prototype.at = function (address, callback) {
    var contract = new Contract(this.abi, address);
    // TODO: address is required

    // attach functions
    addFunctionsToContract(contract, this.abi);
    addEventsToContract(contract, this.abi);
    
    if (callback) {
        callback(null, contract);
    } 
    return contract;
};

/**
 * Should be called to create new contract instance
 *
 * @method Contract
 * @param {Array} abi
 * @param {Address} contract address
 */
var Contract = function (abi, address) {
    this.address = address;
};

module.exports = contract;


},{"../solidity/coder":7,"../utils/utils":20,"../web3":22,"./allevents":23,"./event":27,"./function":30}],26:[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 errors.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

module.exports = {
    InvalidNumberOfParams: function () {
        return new Error('Invalid number of input parameters');
    },
    InvalidConnection: function (host){
        return new Error('CONNECTION ERROR: Couldn\'t connect to node '+ host +', is it running?');
    },
    InvalidProvider: function () {
        return new Error('Providor not set or invalid');
    },
    InvalidResponse: function (result){
        var message = !!result && !!result.error && !!result.error.message ? result.error.message : 'Invalid JSON RPC response: '+ result;
        return new Error(message);
    }
};


},{}],27:[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 event.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2014
 */

var utils = require('../utils/utils');
var coder = require('../solidity/coder');
var formatters = require('./formatters');
var sha3 = require('../utils/sha3');
var Filter = require('./filter');
var watches = require('./methods/watches');

/**
 * This prototype should be used to create event filters
 */
var SolidityEvent = function (json, address) {
    this._params = json.inputs;
    this._name = utils.transformToFullName(json);
    this._address = address;
    this._anonymous = json.anonymous;
};

/**
 * Should be used to get filtered param types
 *
 * @method types
 * @param {Bool} decide if returned typed should be indexed
 * @return {Array} array of types
 */
SolidityEvent.prototype.types = function (indexed) {
    return this._params.filter(function (i) {
        return i.indexed === indexed;
    }).map(function (i) {
        return i.type;
    });
};

/**
 * Should be used to get event display name
 *
 * @method displayName
 * @return {String} event display name
 */
SolidityEvent.prototype.displayName = function () {
    return utils.extractDisplayName(this._name);
};

/**
 * Should be used to get event type name
 *
 * @method typeName
 * @return {String} event type name
 */
SolidityEvent.prototype.typeName = function () {
    return utils.extractTypeName(this._name);
};

/**
 * Should be used to get event signature
 *
 * @method signature
 * @return {String} event signature
 */
SolidityEvent.prototype.signature = function () {
    return sha3(this._name);
};

/**
 * Should be used to encode indexed params and options to one final object
 * 
 * @method encode
 * @param {Object} indexed
 * @param {Object} options
 * @return {Object} everything combined together and encoded
 */
SolidityEvent.prototype.encode = function (indexed, options) {
    indexed = indexed || {};
    options = options || {};
    var result = {};

    ['fromBlock', 'toBlock'].filter(function (f) {
        return options[f] !== undefined;
    }).forEach(function (f) {
        result[f] = formatters.inputBlockNumberFormatter(options[f]);
    });

    result.topics = [];

    result.address = this._address;
    if (!this._anonymous) {
        result.topics.push('0x' + this.signature());
    }

    var indexedTopics = this._params.filter(function (i) {
        return i.indexed === true;
    }).map(function (i) {
        var value = indexed[i.name];
        if (value === undefined || value === null) {
            return null;
        }
        
        if (utils.isArray(value)) {
            return value.map(function (v) {
                return '0x' + coder.encodeParam(i.type, v);
            });
        }
        return '0x' + coder.encodeParam(i.type, value);
    });

    result.topics = result.topics.concat(indexedTopics);

    return result;
};

/**
 * Should be used to decode indexed params and options
 *
 * @method decode
 * @param {Object} data
 * @return {Object} result object with decoded indexed && not indexed params
 */
SolidityEvent.prototype.decode = function (data) {
 
    data.data = data.data || '';
    data.topics = data.topics || [];

    var argTopics = this._anonymous ? data.topics : data.topics.slice(1);
    var indexedData = argTopics.map(function (topics) { return topics.slice(2); }).join("");
    var indexedParams = coder.decodeParams(this.types(true), indexedData); 

    var notIndexedData = data.data.slice(2);
    var notIndexedParams = coder.decodeParams(this.types(false), notIndexedData);
    
    var result = formatters.outputLogFormatter(data);
    result.event = this.displayName();
    result.address = data.address;

    result.args = this._params.reduce(function (acc, current) {
        acc[current.name] = current.indexed ? indexedParams.shift() : notIndexedParams.shift();
        return acc;
    }, {});

    delete result.data;
    delete result.topics;

    return result;
};

/**
 * Should be used to create new filter object from event
 *
 * @method execute
 * @param {Object} indexed
 * @param {Object} options
 * @return {Object} filter object
 */
SolidityEvent.prototype.execute = function (indexed, options, callback) {

    if (utils.isFunction(arguments[arguments.length - 1])) {
        callback = arguments[arguments.length - 1];
        if(arguments.length === 2)
            options = null;
        if(arguments.length === 1) {
            options = null;
            indexed = {};
        }
    }
    
    var o = this.encode(indexed, options);
    var formatter = this.decode.bind(this);
    return new Filter(o, watches.eth(), formatter, callback);
};

/**
 * Should be used to attach event to contract object
 *
 * @method attachToContract
 * @param {Contract}
 */
SolidityEvent.prototype.attachToContract = function (contract) {
    var execute = this.execute.bind(this);
    var displayName = this.displayName();
    if (!contract[displayName]) {
        contract[displayName] = execute;
    }
    contract[displayName][this.typeName()] = this.execute.bind(this, contract);
};

module.exports = SolidityEvent;


},{"../solidity/coder":7,"../utils/sha3":19,"../utils/utils":20,"./filter":28,"./formatters":29,"./methods/watches":40}],28:[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>
 *   Fabian Vogelsteller <fabian@ethdev.com>
 *   Gav Wood <g@ethdev.com>
 * @date 2014
 */

var RequestManager = require('./requestmanager');
var formatters = require('./formatters');
var utils = require('../utils/utils');

/**
* Converts a given topic to a hex string, but also allows null values.
*
* @param {Mixed} value
* @return {String}
*/
var toTopic = function(value){

    if(value === null || typeof value === 'undefined')
        return null;

    value = String(value);

    if(value.indexOf('0x') === 0)
        return value;
    else
        return utils.fromAscii(value);
};

/// This method should be called on options object, to verify deprecated properties && lazy load dynamic ones
/// @param should be string or object
/// @returns options string or object
var getOptions = function (options) {

    if (utils.isString(options)) {
        return options;
    } 

    options = options || {};

    // make sure topics, get converted to hex
    options.topics = options.topics || [];
    options.topics = options.topics.map(function(topic){
        return (utils.isArray(topic)) ? topic.map(toTopic) : toTopic(topic);
    });

    // lazy load
    return {
        topics: options.topics,
        to: options.to,
        address: options.address,
        fromBlock: formatters.inputBlockNumberFormatter(options.fromBlock),
        toBlock: formatters.inputBlockNumberFormatter(options.toBlock) 
    }; 
};

/**
Adds the callback and sets up the methods, to iterate over the results.

@method getLogsAtStart
@param {Object} self
@param {funciton} 
*/
var getLogsAtStart = function(self, callback){
    // call getFilterLogs for the first watch callback start
    if (!utils.isString(self.options)) {
        self.get(function (err, messages) {
            // don't send all the responses to all the watches again... just to self one
            if (err) {
                callback(err);
            }

            if(utils.isArray(messages)) {
                messages.forEach(function (message) {
                    callback(null, message);
                });
            }
        });
    }
};

/**
Adds the callback and sets up the methods, to iterate over the results.

@method pollFilter
@param {Object} self
*/
var pollFilter = function(self) {

    var onMessage = function (error, messages) {
        if (error) {
            return self.callbacks.forEach(function (callback) {
                callback(error);
            });
        }

        messages.forEach(function (message) {
            message = self.formatter ? self.formatter(message) : message;
            self.callbacks.forEach(function (callback) {
                callback(null, message);
            });
        });
    };

    RequestManager.getInstance().startPolling({
        method: self.implementation.poll.call,
        params: [self.filterId],
    }, self.filterId, onMessage, self.stopWatching.bind(self));

};

var Filter = function (options, methods, formatter, callback) {
    var self = this;
    var implementation = {};
    methods.forEach(function (method) {
        method.attachToObject(implementation);
    });
    this.options = getOptions(options);
    this.implementation = implementation;
    this.filterId = null;
    this.callbacks = [];
    this.pollFilters = [];
    this.formatter = formatter;
    this.implementation.newFilter(this.options, function(error, id){
        if(error) {
            self.callbacks.forEach(function(cb){
                cb(error);
            });
        } else {
            self.filterId = id;

            // get filter logs for the already existing watch calls
            self.callbacks.forEach(function(cb){
                getLogsAtStart(self, cb);
            });
            if(self.callbacks.length > 0)
                pollFilter(self);

            // start to watch immediately
            if(callback) {
                return self.watch(callback);
            }
        }
    });

    return this;
};

Filter.prototype.watch = function (callback) {
    this.callbacks.push(callback);

    if(this.filterId) {
        getLogsAtStart(this, callback);
        pollFilter(this);
    }

    return this;
};

Filter.prototype.stopWatching = function () {
    RequestManager.getInstance().stopPolling(this.filterId);
    // remove filter async
    this.implementation.uninstallFilter(this.filterId, function(){});
    this.callbacks = [];
};

Filter.prototype.get = function (callback) {
    var self = this;
    if (utils.isFunction(callback)) {
        this.implementation.getLogs(this.filterId, function(err, res){
            if (err) {
                callback(err);
            } else {
                callback(null, res.map(function (log) {
                    return self.formatter ? self.formatter(log) : log;
                }));
            }
        });
    } else {
        var logs = this.implementation.getLogs(this.filterId);
        return logs.map(function (log) {
            return self.formatter ? self.formatter(log) : log;
        });
    }

    return this;
};

module.exports = Filter;


},{"../utils/utils":20,"./formatters":29,"./requestmanager":43}],29:[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 formatters.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @author Fabian Vogelsteller <fabian@ethdev.com>
 * @date 2015
 */

var utils = require('../utils/utils');
var config = require('../utils/config');
var Iban = require('./iban');

/**
 * Should the format output to a big number
 *
 * @method outputBigNumberFormatter
 * @param {String|Number|BigNumber}
 * @returns {BigNumber} object
 */
var outputBigNumberFormatter = function (number) {
    return utils.toBigNumber(number);
};

var isPredefinedBlockNumber = function (blockNumber) {
    return blockNumber === 'latest' || blockNumber === 'pending' || blockNumber === 'earliest';
};

var inputDefaultBlockNumberFormatter = function (blockNumber) {
    if (blockNumber === undefined) {
        return config.defaultBlock;
    }
    return inputBlockNumberFormatter(blockNumber);
};

var inputBlockNumberFormatter = function (blockNumber) {
    if (blockNumber === undefined) {
        return undefined;
    } else if (isPredefinedBlockNumber(blockNumber)) {
        return blockNumber;
    }
    return utils.toHex(blockNumber);
};

/**
 * Formats the input of a transaction and converts all values to HEX
 *
 * @method inputCallFormatter
 * @param {Object} transaction options
 * @returns object
*/
var inputCallFormatter = function (options){

    options.from = options.from || config.defaultAccount;

    if (options.from) {
        options.from = inputAddressFormatter(options.from);
    }

    if (options.to) { // it might be contract creation
        options.to = inputAddressFormatter(options.to);
    }

    ['gasPrice', 'gas', 'value', 'nonce'].filter(function (key) {
        return options[key] !== undefined;
    }).forEach(function(key){
        options[key] = utils.fromDecimal(options[key]);
    });

    return options; 
};

/**
 * Formats the input of a transaction and converts all values to HEX
 *
 * @method inputTransactionFormatter
 * @param {Object} transaction options
 * @returns object
*/
var inputTransactionFormatter = function (options){

    options.from = options.from || config.defaultAccount;
    options.from = inputAddressFormatter(options.from);

    if (options.to) { // it might be contract creation
        options.to = inputAddressFormatter(options.to);
    }

    ['gasPrice', 'gas', 'value', 'nonce'].filter(function (key) {
        return options[key] !== undefined;
    }).forEach(function(key){
        options[key] = utils.fromDecimal(options[key]);
    });

    return options; 
};

/**
 * Formats the output of a transaction to its proper values
 * 
 * @method outputTransactionFormatter
 * @param {Object} tx
 * @returns {Object}
*/
var outputTransactionFormatter = function (tx){
    if(tx.blockNumber !== null)
        tx.blockNumber = utils.toDecimal(tx.blockNumber);
    if(tx.transactionIndex !== null)
        tx.transactionIndex = utils.toDecimal(tx.transactionIndex);
    tx.nonce = utils.toDecimal(tx.nonce);
    tx.gas = utils.toDecimal(tx.gas);
    tx.gasPrice = utils.toBigNumber(tx.gasPrice);
    tx.value = utils.toBigNumber(tx.value);
    return tx;
};

/**
 * Formats the output of a transaction receipt to its proper values
 * 
 * @method outputTransactionReceiptFormatter
 * @param {Object} receipt
 * @returns {Object}
*/
var outputTransactionReceiptFormatter = function (receipt){
    if(receipt.blockNumber !== null)
        receipt.blockNumber = utils.toDecimal(receipt.blockNumber);
    if(receipt.transactionIndex !== null)
        receipt.transactionIndex = utils.toDecimal(receipt.transactionIndex);
    receipt.cumulativeGasUsed = utils.toDecimal(receipt.cumulativeGasUsed);
    receipt.gasUsed = utils.toDecimal(receipt.gasUsed);

    if(utils.isArray(receipt.logs)) {
        receipt.logs = receipt.logs.map(function(log){
            return outputLogFormatter(log);
        });
    }

    return receipt;
};

/**
 * Formats the output of a block to its proper values
 *
 * @method outputBlockFormatter
 * @param {Object} block 
 * @returns {Object}
*/
var outputBlockFormatter = function(block) {

    // transform to number
    block.gasLimit = utils.toDecimal(block.gasLimit);
    block.gasUsed = utils.toDecimal(block.gasUsed);
    block.size = utils.toDecimal(block.size);
    block.timestamp = utils.toDecimal(block.timestamp);
    if(block.number !== null)
        block.number = utils.toDecimal(block.number);

    block.difficulty = utils.toBigNumber(block.difficulty);
    block.totalDifficulty = utils.toBigNumber(block.totalDifficulty);

    if (utils.isArray(block.transactions)) {
        block.transactions.forEach(function(item){
            if(!utils.isString(item))
                return outputTransactionFormatter(item);
        });
    }

    return block;
};

/**
 * Formats the output of a log
 * 
 * @method outputLogFormatter
 * @param {Object} log object
 * @returns {Object} log
*/
var outputLogFormatter = function(log) {
    if(log.blockNumber !== null)
        log.blockNumber = utils.toDecimal(log.blockNumber);
    if(log.transactionIndex !== null)
        log.transactionIndex = utils.toDecimal(log.transactionIndex);
    if(log.logIndex !== null)
        log.logIndex = utils.toDecimal(log.logIndex);

    return log;
};

/**
 * Formats the input of a whisper post and converts all values to HEX
 *
 * @method inputPostFormatter
 * @param {Object} transaction object
 * @returns {Object}
*/
var inputPostFormatter = function(post) {

    post.payload = utils.toHex(post.payload);
    post.ttl = utils.fromDecimal(post.ttl);
    post.workToProve = utils.fromDecimal(post.workToProve);
    post.priority = utils.fromDecimal(post.priority);

    // fallback
    if (!utils.isArray(post.topics)) {
        post.topics = post.topics ? [post.topics] : [];
    }

    // format the following options
    post.topics = post.topics.map(function(topic){
        return utils.fromAscii(topic);
    });

    return post; 
};

/**
 * Formats the output of a received post message
 *
 * @method outputPostFormatter
 * @param {Object}
 * @returns {Object}
 */
var outputPostFormatter = function(post){

    post.expiry = utils.toDecimal(post.expiry);
    post.sent = utils.toDecimal(post.sent);
    post.ttl = utils.toDecimal(post.ttl);
    post.workProved = utils.toDecimal(post.workProved);
    post.payloadRaw = post.payload;
    post.payload = utils.toAscii(post.payload);

    if (utils.isJson(post.payload)) {
        post.payload = JSON.parse(post.payload);
    }

    // format the following options
    if (!post.topics) {
        post.topics = [];
    }
    post.topics = post.topics.map(function(topic){
        return utils.toAscii(topic);
    });

    return post;
};

var inputAddressFormatter = function (address) {
    var iban = new Iban(address);
    if (iban.isValid() && iban.isDirect()) {
        return '0x' + iban.address();
    } else if (utils.isStrictAddress(address)) {
        return address;
    } else if (utils.isAddress(address)) {
        return '0x' + address;
    }
    throw 'invalid address';
};

module.exports = {
    inputDefaultBlockNumberFormatter: inputDefaultBlockNumberFormatter,
    inputBlockNumberFormatter: inputBlockNumberFormatter,
    inputCallFormatter: inputCallFormatter,
    inputTransactionFormatter: inputTransactionFormatter,
    inputAddressFormatter: inputAddressFormatter,
    inputPostFormatter: inputPostFormatter,
    outputBigNumberFormatter: outputBigNumberFormatter,
    outputTransactionFormatter: outputTransactionFormatter,
    outputTransactionReceiptFormatter: outputTransactionReceiptFormatter,
    outputBlockFormatter: outputBlockFormatter,
    outputLogFormatter: outputLogFormatter,
    outputPostFormatter: outputPostFormatter
};


},{"../utils/config":18,"../utils/utils":20,"./iban":32}],30:[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 function.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var web3 = require('../web3');
var coder = require('../solidity/coder');
var utils = require('../utils/utils');
var formatters = require('./formatters');
var sha3 = require('../utils/sha3');

/**
 * This prototype should be used to call/sendTransaction to solidity functions
 */
var SolidityFunction = function (json, address) {
    this._inputTypes = json.inputs.map(function (i) {
        return i.type;
    });
    this._outputTypes = json.outputs.map(function (i) {
        return i.type;
    });
    this._constant = json.constant;
    this._name = utils.transformToFullName(json);
    this._address = address;
};

SolidityFunction.prototype.extractCallback = function (args) {
    if (utils.isFunction(args[args.length - 1])) {
        return args.pop(); // modify the args array!
    }
};

SolidityFunction.prototype.extractDefaultBlock = function (args) {
    if (args.length > this._inputTypes.length && !utils.isObject(args[args.length -1])) {
        return formatters.inputDefaultBlockNumberFormatter(args.pop()); // modify the args array!
    }
};

/**
 * Should be used to create payload from arguments
 *
 * @method toPayload
 * @param {Array} solidity function params
 * @param {Object} optional payload options
 */
SolidityFunction.prototype.toPayload = function (args) {
    var options = {};
    if (args.length > this._inputTypes.length && utils.isObject(args[args.length -1])) {
        options = args[args.length - 1];
    }
    options.to = this._address;
    options.data = '0x' + this.signature() + coder.encodeParams(this._inputTypes, args);
    return options;
};

/**
 * Should be used to get function signature
 *
 * @method signature
 * @return {String} function signature
 */
SolidityFunction.prototype.signature = function () {
    return sha3(this._name).slice(0, 8);
};


SolidityFunction.prototype.unpackOutput = function (output) {
    if (!output) {
        return;
    }

    output = output.length >= 2 ? output.slice(2) : output;
    var result = coder.decodeParams(this._outputTypes, output);
    return result.length === 1 ? result[0] : result;
};

/**
 * Calls a contract function.
 *
 * @method call
 * @param {...Object} Contract function arguments
 * @param {function} If the last argument is a function, the contract function
 *   call will be asynchronous, and the callback will be passed the
 *   error and result.
 * @return {String} output bytes
 */
SolidityFunction.prototype.call = function () {
    var args = Array.prototype.slice.call(arguments).filter(function (a) {return a !== undefined; });
    var callback = this.extractCallback(args);
    var defaultBlock = this.extractDefaultBlock(args);
    var payload = this.toPayload(args);


    if (!callback) {
        var output = web3.eth.call(payload, defaultBlock);
        return this.unpackOutput(output);
    } 
        
    var self = this;
    web3.eth.call(payload, defaultBlock, function (error, output) {
        callback(error, self.unpackOutput(output));
    });
};

/**
 * Should be used to sendTransaction to solidity function
 *
 * @method sendTransaction
 * @param {Object} options
 */
SolidityFunction.prototype.sendTransaction = function () {
    var args = Array.prototype.slice.call(arguments).filter(function (a) {return a !== undefined; });
    var callback = this.extractCallback(args);
    var payload = this.toPayload(args);

    if (!callback) {
        return web3.eth.sendTransaction(payload);
    }

    web3.eth.sendTransaction(payload, callback);
};

/**
 * Should be used to estimateGas of solidity function
 *
 * @method estimateGas
 * @param {Object} options
 */
SolidityFunction.prototype.estimateGas = function () {
    var args = Array.prototype.slice.call(arguments);
    var callback = this.extractCallback(args);
    var payload = this.toPayload(args);

    if (!callback) {
        return web3.eth.estimateGas(payload);
    }

    web3.eth.estimateGas(payload, callback);
};

/**
 * Should be used to get function display name
 *
 * @method displayName
 * @return {String} display name of the function
 */
SolidityFunction.prototype.displayName = function () {
    return utils.extractDisplayName(this._name);
};

/**
 * Should be used to get function type name
 *
 * @method typeName
 * @return {String} type name of the function
 */
SolidityFunction.prototype.typeName = function () {
    return utils.extractTypeName(this._name);
};

/**
 * Should be called to get rpc requests from solidity function
 *
 * @method request
 * @returns {Object}
 */
SolidityFunction.prototype.request = function () {
    var args = Array.prototype.slice.call(arguments);
    var callback = this.extractCallback(args);
    var payload = this.toPayload(args);
    var format = this.unpackOutput.bind(this);
    
    return {
        method: this._constant ? 'eth_call' : 'eth_sendTransaction',
        callback: callback,
        params: [payload], 
        format: format
    };
};

/**
 * Should be called to execute function
 *
 * @method execute
 */
SolidityFunction.prototype.execute = function () {
    var transaction = !this._constant;

    // send transaction
    if (transaction) {
        return this.sendTransaction.apply(this, Array.prototype.slice.call(arguments));
    }

    // call
    return this.call.apply(this, Array.prototype.slice.call(arguments));
};

/**
 * Should be called to attach function to contract
 *
 * @method attachToContract
 * @param {Contract}
 */
SolidityFunction.prototype.attachToContract = function (contract) {
    var execute = this.execute.bind(this);
    execute.request = this.request.bind(this);
    execute.call = this.call.bind(this);
    execute.sendTransaction = this.sendTransaction.bind(this);
    execute.estimateGas = this.estimateGas.bind(this);
    var displayName = this.displayName();
    if (!contract[displayName]) {
        contract[displayName] = execute;
    }
    contract[displayName][this.typeName()] = execute; // circular!!!!
};

module.exports = SolidityFunction;


},{"../solidity/coder":7,"../utils/sha3":19,"../utils/utils":20,"../web3":22,"./formatters":29}],31:[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 httpprovider.js
 * @authors:
 *   Marek Kotewicz <marek@ethdev.com>
 *   Marian Oancea <marian@ethdev.com>
 *   Fabian Vogelsteller <fabian@ethdev.com>
 * @date 2015
 */

"use strict";

var errors = require('./errors');

// workaround to use httpprovider in different envs
var XMLHttpRequest; // jshint ignore: line

// meteor server environment
if (typeof Meteor !== 'undefined' && Meteor.isServer) { // jshint ignore: line
    XMLHttpRequest = Npm.require('xmlhttprequest').XMLHttpRequest; // jshint ignore: line

// browser
} else if (typeof window !== 'undefined' && window.XMLHttpRequest) {
    XMLHttpRequest = window.XMLHttpRequest; // jshint ignore: line

// node
} else {
    XMLHttpRequest = require('xmlhttprequest').XMLHttpRequest; // jshint ignore: line
}

/**
 * HttpProvider should be used to send rpc calls over http
 */
var HttpProvider = function (host) {
    this.host = host || 'http://localhost:8545';
};

/**
 * Should be called to prepare new XMLHttpRequest
 *
 * @method prepareRequest
 * @param {Boolean} true if request should be async
 * @return {XMLHttpRequest} object
 */
HttpProvider.prototype.prepareRequest = function (async) {
    var request = new XMLHttpRequest();
    request.open('POST', this.host, async);
    request.setRequestHeader('Content-Type','application/json');
    return request;
};

/**
 * Should be called to make sync request
 *
 * @method send
 * @param {Object} payload
 * @return {Object} result
 */
HttpProvider.prototype.send = function (payload) {
    var request = this.prepareRequest(false);

    try {
        request.send(JSON.stringify(payload));
    } catch(error) {
        throw errors.InvalidConnection(this.host);
    }

    var result = request.responseText;

    try {
        result = JSON.parse(result);
    } catch(e) {
        throw errors.InvalidResponse(request.responseText);                
    }

    return result;
};

/**
 * Should be used to make async request
 *
 * @method sendAsync
 * @param {Object} payload
 * @param {Function} callback triggered on end with (err, result)
 */
HttpProvider.prototype.sendAsync = function (payload, callback) {
    var request = this.prepareRequest(true); 

    request.onreadystatechange = function() {
        if (request.readyState === 4) {
            var result = request.responseText;
            var error = null;

            try {
                result = JSON.parse(result);
            } catch(e) {
                error = errors.InvalidResponse(request.responseText);                
            }

            callback(error, result);
        }
    };
    
    try {
        request.send(JSON.stringify(payload));
    } catch(error) {
        callback(errors.InvalidConnection(this.host));
    }
};

/**
 * Synchronously tries to make Http request
 *
 * @method isConnected
 * @return {Boolean} returns true if request haven't failed. Otherwise false
 */
HttpProvider.prototype.isConnected = function() {
    try {
        this.send({
            id: 9999999999,
            jsonrpc: '2.0',
            method: 'net_listening',
            params: []
        });
        return true;
    } catch(e) {
        return false;
    }
};

module.exports = HttpProvider;


},{"./errors":26,"xmlhttprequest":17}],32:[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 iban.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var BigNumber = require('bignumber.js');

var padLeft = function (string, bytes) {
    var result = string;
    while (result.length < bytes * 2) {
        result = '00' + result;
    }
    return result;
};

/**
 * Prepare an IBAN for mod 97 computation by moving the first 4 chars to the end and transforming the letters to
 * numbers (A = 10, B = 11, ..., Z = 35), as specified in ISO13616.
 *
 * @method iso13616Prepare
 * @param {String} iban the IBAN
 * @returns {String} the prepared IBAN
 */
var iso13616Prepare = function (iban) {
    var A = 'A'.charCodeAt(0);
    var Z = 'Z'.charCodeAt(0);

    iban = iban.toUpperCase();
    iban = iban.substr(4) + iban.substr(0,4);

    return iban.split('').map(function(n){
        var code = n.charCodeAt(0);
        if (code >= A && code <= Z){
            // A = 10, B = 11, ... Z = 35
            return code - A + 10;
        } else {
            return n;
        }
    }).join('');
};

/**
 * Calculates the MOD 97 10 of the passed IBAN as specified in ISO7064.
 *
 * @method mod9710
 * @param {String} iban
 * @returns {Number}
 */
var mod9710 = function (iban) {
    var remainder = iban,
        block;

    while (remainder.length > 2){
        block = remainder.slice(0, 9);
        remainder = parseInt(block, 10) % 97 + remainder.slice(block.length);
    }

    return parseInt(remainder, 10) % 97;
};

/**
 * This prototype should be used to create iban object from iban correct string
 *
 * @param {String} iban
 */
var Iban = function (iban) {
    this._iban = iban;
};

/**
 * This method should be used to create iban object from ethereum address
 *
 * @method fromAddress
 * @param {String} address
 * @return {Iban} the IBAN object
 */
Iban.fromAddress = function (address) {
    var asBn = new BigNumber(address, 16);
    var base36 = asBn.toString(36);
    var padded = padLeft(base36, 15);
    return Iban.fromBban(padded.toUpperCase());
};

/**
 * Convert the passed BBAN to an IBAN for this country specification.
 * Please note that <i>"generation of the IBAN shall be the exclusive responsibility of the bank/branch servicing the account"</i>.
 * This method implements the preferred algorithm described in http://en.wikipedia.org/wiki/International_Bank_Account_Number#Generating_IBAN_check_digits
 *
 * @method fromBban
 * @param {String} bban the BBAN to convert to IBAN
 * @returns {Iban} the IBAN object
 */
Iban.fromBban = function (bban) {
    var countryCode = 'XE';

    var remainder = mod9710(iso13616Prepare(countryCode + '00' + bban));
    var checkDigit = ('0' + (98 - remainder)).slice(-2);

    return new Iban(countryCode + checkDigit + bban);
};

/**
 * Should be used to create IBAN object for given institution and identifier
 *
 * @method createIndirect
 * @param {Object} options, required options are "institution" and "identifier"
 * @return {Iban} the IBAN object
 */
Iban.createIndirect = function (options) {
    return Iban.fromBban('ETH' + options.institution + options.identifier);
};

/**
 * Thos method should be used to check if given string is valid iban object
 *
 * @method isValid
 * @param {String} iban string
 * @return {Boolean} true if it is valid IBAN
 */
Iban.isValid = function (iban) {
    var i = new Iban(iban);
    return i.isValid();
};

/**
 * Should be called to check if iban is correct
 *
 * @method isValid
 * @returns {Boolean} true if it is, otherwise false
 */
Iban.prototype.isValid = function () {
    return /^XE[0-9]{2}(ETH[0-9A-Z]{13}|[0-9A-Z]{30})$/.test(this._iban) &&
        mod9710(iso13616Prepare(this._iban)) === 1;
};

/**
 * Should be called to check if iban number is direct
 *
 * @method isDirect
 * @returns {Boolean} true if it is, otherwise false
 */
Iban.prototype.isDirect = function () {
    return this._iban.length === 34 || this._iban.length === 35;
};

/**
 * Should be called to check if iban number if indirect
 *
 * @method isIndirect
 * @returns {Boolean} true if it is, otherwise false
 */
Iban.prototype.isIndirect = function () {
    return this._iban.length === 20;
};

/**
 * Should be called to get iban checksum
 * Uses the mod-97-10 checksumming protocol (ISO/IEC 7064:2003)
 *
 * @method checksum
 * @returns {String} checksum
 */
Iban.prototype.checksum = function () {
    return this._iban.substr(2, 2);
};

/**
 * Should be called to get institution identifier
 * eg. XREG
 *
 * @method institution
 * @returns {String} institution identifier
 */
Iban.prototype.institution = function () {
    return this.isIndirect() ? this._iban.substr(7, 4) : '';
};

/**
 * Should be called to get client identifier within institution
 * eg. GAVOFYORK
 *
 * @method client
 * @returns {String} client identifier
 */
Iban.prototype.client = function () {
    return this.isIndirect() ? this._iban.substr(11) : '';
};

/**
 * Should be called to get client direct address
 *
 * @method address
 * @returns {String} client direct address
 */
Iban.prototype.address = function () {
    if (this.isDirect()) {
        var base36 = this._iban.substr(4);
        var asBn = new BigNumber(base36, 36);
        return padLeft(asBn.toString(16), 20);
    } 

    return '';
};

Iban.prototype.toString = function () {
    return this._iban;
};

module.exports = Iban;


},{"bignumber.js":"bignumber.js"}],33:[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 ipcprovider.js
 * @authors:
 *   Fabian Vogelsteller <fabian@ethdev.com>
 * @date 2015
 */

"use strict";

var utils = require('../utils/utils');
var errors = require('./errors');

var errorTimeout = function (method, id) {
    var err = {
        "jsonrpc": "2.0",
        "error": {
            "code": -32603, 
            "message": "IPC Request timed out for method  \'" + method + "\'"
        }, 
        "id": id
    };
    return JSON.stringify(err);
};

var IpcProvider = function (path, net) {
    var _this = this;
    this.responseCallbacks = {};
    this.path = path;
    
    this.connection = net.connect({path: this.path});

    this.connection.on('error', function(e){
        console.error('IPC Connection Error', e);
        _this._timeout();
    });

    this.connection.on('end', function(){
        _this._timeout();
    }); 


    // LISTEN FOR CONNECTION RESPONSES
    this.connection.on('data', function(data) {
        /*jshint maxcomplexity: 6 */

        _this._parseResponse(data.toString()).forEach(function(result){

            var id = null;

            // get the id which matches the returned id
            if(utils.isArray(result)) {
                result.forEach(function(load){
                    if(_this.responseCallbacks[load.id])
                        id = load.id;
                });
            } else {
                id = result.id;
            }

            // fire the callback
            if(_this.responseCallbacks[id]) {
                _this.responseCallbacks[id](null, result);
                delete _this.responseCallbacks[id];
            }
        });
    });
};

/**
Will parse the response and make an array out of it.

@method _parseResponse
@param {String} data
*/
IpcProvider.prototype._parseResponse = function(data) {
    var _this = this,
        returnValues = [];
    
    // DE-CHUNKER
    var dechunkedData = data
        .replace(/\}\{/g,'}|--|{') // }{
        .replace(/\}\]\[\{/g,'}]|--|[{') // }][{
        .replace(/\}\[\{/g,'}|--|[{') // }[{
        .replace(/\}\]\{/g,'}]|--|{') // }]{
        .split('|--|');

    dechunkedData.forEach(function(data){

        // prepend the last chunk
        if(_this.lastChunk)
            data = _this.lastChunk + data;

        var result = null;

        try {
            result = JSON.parse(data);

        } catch(e) {

            _this.lastChunk = data;

            // start timeout to cancel all requests
            clearTimeout(_this.lastChunkTimeout);
            _this.lastChunkTimeout = setTimeout(function(){
                _this.timeout();
                throw errors.InvalidResponse(data);
            }, 1000 * 15);

            return;
        }

        // cancel timeout and set chunk to null
        clearTimeout(_this.lastChunkTimeout);
        _this.lastChunk = null;

        if(result)
            returnValues.push(result);
    });

    return returnValues;
};


/**
Get the adds a callback to the responseCallbacks object,
which will be called if a response matching the response Id will arrive.

@method _addResponseCallback
*/
IpcProvider.prototype._addResponseCallback = function(payload, callback) {
    var id = payload.id || payload[0].id;
    var method = payload.method || payload[0].method;

    this.responseCallbacks[id] = callback;
    this.responseCallbacks[id].method = method;
};

/**
Timeout all requests when the end/error event is fired

@method _timeout
*/
IpcProvider.prototype._timeout = function() {
    for(var key in this.responseCallbacks) {
        if(this.responseCallbacks.hasOwnProperty(key)){
            this.responseCallbacks[key](errorTimeout(this.responseCallbacks[key].method, key));
            delete this.responseCallbacks[key];
        }
    }
};


/**
Check if the current connection is still valid.

@method isConnected
*/
IpcProvider.prototype.isConnected = function() {
    var _this = this;

    // try reconnect, when connection is gone
    if(!_this.connection.writable)
        _this.connection.connect({path: _this.path});

    return !!this.connection.writable;
};

IpcProvider.prototype.send = function (payload) {

    if(this.connection.writeSync) {
        var result;

        // try reconnect, when connection is gone
        if(!this.connection.writable)
            this.connection.connect({path: this.path});

        var data = this.connection.writeSync(JSON.stringify(payload));

        try {
            result = JSON.parse(data);
        } catch(e) {
            throw errors.InvalidResponse(data);                
        }

        return result;

    } else {
        throw new Error('You tried to send "'+ payload.method +'" synchronously. Synchronous requests are not supported by the IPC provider.');
    }
};

IpcProvider.prototype.sendAsync = function (payload, callback) {
    // try reconnect, when connection is gone
    if(!this.connection.writable)
        this.connection.connect({path: this.path});


    this.connection.write(JSON.stringify(payload));
    this._addResponseCallback(payload, callback);
};

module.exports = IpcProvider;


},{"../utils/utils":20,"./errors":26}],34:[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 jsonrpc.js
 * @authors:
 *   Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var Jsonrpc = function () {
    // singleton pattern
    if (arguments.callee._singletonInstance) {
        return arguments.callee._singletonInstance;
    }
    arguments.callee._singletonInstance = this;

    this.messageId = 1;
};

/**
 * @return {Jsonrpc} singleton
 */
Jsonrpc.getInstance = function () {
    var instance = new Jsonrpc();
    return instance;
};

/**
 * Should be called to valid json create payload object
 *
 * @method toPayload
 * @param {Function} method of jsonrpc call, required
 * @param {Array} params, an array of method params, optional
 * @returns {Object} valid jsonrpc payload object
 */
Jsonrpc.prototype.toPayload = function (method, params) {
    if (!method)
        console.error('jsonrpc method should be specified!');

    return {
        jsonrpc: '2.0',
        method: method,
        params: params || [],
        id: this.messageId++
    };
};

/**
 * Should be called to check if jsonrpc response is valid
 *
 * @method isValidResponse
 * @param {Object}
 * @returns {Boolean} true if response is valid, otherwise false
 */
Jsonrpc.prototype.isValidResponse = function (response) {
    return !!response &&
        !response.error &&
        response.jsonrpc === '2.0' &&
        typeof response.id === 'number' &&
        response.result !== undefined; // only undefined is not valid json object
};

/**
 * Should be called to create batch payload object
 *
 * @method toBatchPayload
 * @param {Array} messages, an array of objects with method (required) and params (optional) fields
 * @returns {Array} batch payload
 */
Jsonrpc.prototype.toBatchPayload = function (messages) {
    var self = this;
    return messages.map(function (message) {
        return self.toPayload(message.method, message.params);
    });
};

module.exports = Jsonrpc;


},{}],35:[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 method.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var RequestManager = require('./requestmanager');
var utils = require('../utils/utils');
var errors = require('./errors');

var Method = function (options) {
    this.name = options.name;
    this.call = options.call;
    this.params = options.params || 0;
    this.inputFormatter = options.inputFormatter;
    this.outputFormatter = options.outputFormatter;
};

/**
 * Should be used to determine name of the jsonrpc method based on arguments
 *
 * @method getCall
 * @param {Array} arguments
 * @return {String} name of jsonrpc method
 */
Method.prototype.getCall = function (args) {
    return utils.isFunction(this.call) ? this.call(args) : this.call;
};

/**
 * Should be used to extract callback from array of arguments. Modifies input param
 *
 * @method extractCallback
 * @param {Array} arguments
 * @return {Function|Null} callback, if exists
 */
Method.prototype.extractCallback = function (args) {
    if (utils.isFunction(args[args.length - 1])) {
        return args.pop(); // modify the args array!
    }
};

/**
 * Should be called to check if the number of arguments is correct
 * 
 * @method validateArgs
 * @param {Array} arguments
 * @throws {Error} if it is not
 */
Method.prototype.validateArgs = function (args) {
    if (args.length !== this.params) {
        throw errors.InvalidNumberOfParams();
    }
};

/**
 * Should be called to format input args of method
 * 
 * @method formatInput
 * @param {Array}
 * @return {Array}
 */
Method.prototype.formatInput = function (args) {
    if (!this.inputFormatter) {
        return args;
    }

    return this.inputFormatter.map(function (formatter, index) {
        return formatter ? formatter(args[index]) : args[index];
    });
};

/**
 * Should be called to format output(result) of method
 *
 * @method formatOutput
 * @param {Object}
 * @return {Object}
 */
Method.prototype.formatOutput = function (result) {
    return this.outputFormatter && result ? this.outputFormatter(result) : result;
};

/**
 * Should attach function to method
 * 
 * @method attachToObject
 * @param {Object}
 * @param {Function}
 */
Method.prototype.attachToObject = function (obj) {
    var func = this.send.bind(this);
    func.request = this.request.bind(this);
    func.call = this.call; // that's ugly. filter.js uses it
    var name = this.name.split('.');
    if (name.length > 1) {
        obj[name[0]] = obj[name[0]] || {};
        obj[name[0]][name[1]] = func;
    } else {
        obj[name[0]] = func; 
    }
};

/**
 * Should create payload from given input args
 *
 * @method toPayload
 * @param {Array} args
 * @return {Object}
 */
Method.prototype.toPayload = function (args) {
    var call = this.getCall(args);
    var callback = this.extractCallback(args);
    var params = this.formatInput(args);
    this.validateArgs(params);

    return {
        method: call,
        params: params,
        callback: callback
    };
};

/**
 * Should be called to create pure JSONRPC request which can be used in batch request
 *
 * @method request
 * @param {...} params
 * @return {Object} jsonrpc request
 */
Method.prototype.request = function () {
    var payload = this.toPayload(Array.prototype.slice.call(arguments));
    payload.format = this.formatOutput.bind(this);
    return payload;
};

/**
 * Should send request to the API
 *
 * @method send
 * @param list of params
 * @return result
 */
Method.prototype.send = function () {
    var payload = this.toPayload(Array.prototype.slice.call(arguments));
    if (payload.callback) {
        var self = this;
        return RequestManager.getInstance().sendAsync(payload, function (err, result) {
            payload.callback(err, self.formatOutput(result));
        });
    }
    return this.formatOutput(RequestManager.getInstance().send(payload));
};

module.exports = Method;


},{"../utils/utils":20,"./errors":26,"./requestmanager":43}],36:[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 db.js
 * @authors:
 *   Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var Method = require('../method');

var putString = new Method({
    name: 'putString',
    call: 'db_putString',
    params: 3
});


var getString = new Method({
    name: 'getString',
    call: 'db_getString',
    params: 2
});

var putHex = new Method({
    name: 'putHex',
    call: 'db_putHex',
    params: 3
});

var getHex = new Method({
    name: 'getHex',
    call: 'db_getHex',
    params: 2
});

var methods = [
    putString, getString, putHex, getHex
];

module.exports = {
    methods: methods
};

},{"../method":35}],37:[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 eth.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @author Fabian Vogelsteller <fabian@ethdev.com>
 * @date 2015
 */

/**
 * Web3
 *
 * @module web3
 */

/**
 * Eth methods and properties
 *
 * An example method object can look as follows:
 *
 *      {
 *      name: 'getBlock',
 *      call: blockCall,
 *      params: 2,
 *      outputFormatter: formatters.outputBlockFormatter,
 *      inputFormatter: [ // can be a formatter funciton or an array of functions. Where each item in the array will be used for one parameter
 *           utils.toHex, // formats paramter 1
 *           function(param){ return !!param; } // formats paramter 2
 *         ]
 *       },
 *
 * @class [web3] eth
 * @constructor
 */

"use strict";

var formatters = require('../formatters');
var utils = require('../../utils/utils');
var Method = require('../method');
var Property = require('../property');

var blockCall = function (args) {
    return (utils.isString(args[0]) && args[0].indexOf('0x') === 0) ? "eth_getBlockByHash" : "eth_getBlockByNumber";
};

var transactionFromBlockCall = function (args) {
    return (utils.isString(args[0]) && args[0].indexOf('0x') === 0) ? 'eth_getTransactionByBlockHashAndIndex' : 'eth_getTransactionByBlockNumberAndIndex';
};

var uncleCall = function (args) {
    return (utils.isString(args[0]) && args[0].indexOf('0x') === 0) ? 'eth_getUncleByBlockHashAndIndex' : 'eth_getUncleByBlockNumberAndIndex';
};

var getBlockTransactionCountCall = function (args) {
    return (utils.isString(args[0]) && args[0].indexOf('0x') === 0) ? 'eth_getBlockTransactionCountByHash' : 'eth_getBlockTransactionCountByNumber';
};

var uncleCountCall = function (args) {
    return (utils.isString(args[0]) && args[0].indexOf('0x') === 0) ? 'eth_getUncleCountByBlockHash' : 'eth_getUncleCountByBlockNumber';
};

/// @returns an array of objects describing web3.eth api methods

var getBalance = new Method({
    name: 'getBalance',
    call: 'eth_getBalance',
    params: 2,
    inputFormatter: [formatters.inputAddressFormatter, formatters.inputDefaultBlockNumberFormatter],
    outputFormatter: formatters.outputBigNumberFormatter
});

var getStorageAt = new Method({
    name: 'getStorageAt',
    call: 'eth_getStorageAt',
    params: 3,
    inputFormatter: [null, utils.toHex, formatters.inputDefaultBlockNumberFormatter]
});

var getCode = new Method({
    name: 'getCode',
    call: 'eth_getCode',
    params: 2,
    inputFormatter: [formatters.inputAddressFormatter, formatters.inputDefaultBlockNumberFormatter]
});

var getBlock = new Method({
    name: 'getBlock',
    call: blockCall,
    params: 2,
    inputFormatter: [formatters.inputBlockNumberFormatter, function (val) { return !!val; }],
    outputFormatter: formatters.outputBlockFormatter
});

var getUncle = new Method({
    name: 'getUncle',
    call: uncleCall,
    params: 2,
    inputFormatter: [formatters.inputBlockNumberFormatter, utils.toHex],
    outputFormatter: formatters.outputBlockFormatter,

});

var getCompilers = new Method({
    name: 'getCompilers',
    call: 'eth_getCompilers',
    params: 0
});

var getBlockTransactionCount = new Method({
    name: 'getBlockTransactionCount',
    call: getBlockTransactionCountCall,
    params: 1,
    inputFormatter: [formatters.inputBlockNumberFormatter],
    outputFormatter: utils.toDecimal
});

var getBlockUncleCount = new Method({
    name: 'getBlockUncleCount',
    call: uncleCountCall,
    params: 1,
    inputFormatter: [formatters.inputBlockNumberFormatter],
    outputFormatter: utils.toDecimal
});

var getTransaction = new Method({
    name: 'getTransaction',
    call: 'eth_getTransactionByHash',
    params: 1,
    outputFormatter: formatters.outputTransactionFormatter
});

var getTransactionFromBlock = new Method({
    name: 'getTransactionFromBlock',
    call: transactionFromBlockCall,
    params: 2,
    inputFormatter: [formatters.inputBlockNumberFormatter, utils.toHex],
    outputFormatter: formatters.outputTransactionFormatter
});

var getTransactionReceipt = new Method({
    name: 'getTransactionReceipt',
    call: 'eth_getTransactionReceipt',
    params: 1,
    outputFormatter: formatters.outputTransactionReceiptFormatter
});

var getTransactionCount = new Method({
    name: 'getTransactionCount',
    call: 'eth_getTransactionCount',
    params: 2,
    inputFormatter: [null, formatters.inputDefaultBlockNumberFormatter],
    outputFormatter: utils.toDecimal
});

var sendRawTransaction = new Method({
    name: 'sendRawTransaction',
    call: 'eth_sendRawTransaction',
    params: 1,
    inputFormatter: [null]
});

var sendTransaction = new Method({
    name: 'sendTransaction',
    call: 'eth_sendTransaction',
    params: 1,
    inputFormatter: [formatters.inputTransactionFormatter]
});

var call = new Method({
    name: 'call',
    call: 'eth_call',
    params: 2,
    inputFormatter: [formatters.inputCallFormatter, formatters.inputDefaultBlockNumberFormatter]
});

var estimateGas = new Method({
    name: 'estimateGas',
    call: 'eth_estimateGas',
    params: 1,
    inputFormatter: [formatters.inputCallFormatter],
    outputFormatter: utils.toDecimal
});

var compileSolidity = new Method({
    name: 'compile.solidity',
    call: 'eth_compileSolidity',
    params: 1
});

var compileLLL = new Method({
    name: 'compile.lll',
    call: 'eth_compileLLL',
    params: 1
});

var compileSerpent = new Method({
    name: 'compile.serpent',
    call: 'eth_compileSerpent',
    params: 1
});

var submitWork = new Method({
    name: 'submitWork',
    call: 'eth_submitWork',
    params: 3
});

var getWork = new Method({
    name: 'getWork',
    call: 'eth_getWork',
    params: 0
});

var methods = [
    getBalance,
    getStorageAt,
    getCode,
    getBlock,
    getUncle,
    getCompilers,
    getBlockTransactionCount,
    getBlockUncleCount,
    getTransaction,
    getTransactionFromBlock,
    getTransactionReceipt,
    getTransactionCount,
    call,
    estimateGas,
    sendRawTransaction,
    sendTransaction,
    compileSolidity,
    compileLLL,
    compileSerpent,
    submitWork,
    getWork
];

/// @returns an array of objects describing web3.eth api properties



var properties = [
    new Property({
        name: 'coinbase',
        getter: 'eth_coinbase'
    }),
    new Property({
        name: 'mining',
        getter: 'eth_mining'
    }),
    new Property({
        name: 'hashrate',
        getter: 'eth_hashrate',
        outputFormatter: utils.toDecimal
    }),
    new Property({
        name: 'gasPrice',
        getter: 'eth_gasPrice',
        outputFormatter: formatters.outputBigNumberFormatter
    }),
    new Property({
        name: 'accounts',
        getter: 'eth_accounts'
    }),
    new Property({
        name: 'blockNumber',
        getter: 'eth_blockNumber',
        outputFormatter: utils.toDecimal
    })
];

module.exports = {
    methods: methods,
    properties: properties
};


},{"../../utils/utils":20,"../formatters":29,"../method":35,"../property":42}],38:[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 eth.js
 * @authors:
 *   Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var utils = require('../../utils/utils');
var Property = require('../property');

/// @returns an array of objects describing web3.eth api methods
var methods = [
];

/// @returns an array of objects describing web3.eth api properties
var properties = [
    new Property({
        name: 'listening',
        getter: 'net_listening'
    }),
    new Property({
        name: 'peerCount',
        getter: 'net_peerCount',
        outputFormatter: utils.toDecimal
    })
];


module.exports = {
    methods: methods,
    properties: properties
};


},{"../../utils/utils":20,"../property":42}],39:[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 shh.js
 * @authors:
 *   Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var Method = require('../method');
var formatters = require('../formatters');

var post = new Method({
    name: 'post', 
    call: 'shh_post', 
    params: 1,
    inputFormatter: [formatters.inputPostFormatter]
});

var newIdentity = new Method({
    name: 'newIdentity',
    call: 'shh_newIdentity',
    params: 0
});

var hasIdentity = new Method({
    name: 'hasIdentity',
    call: 'shh_hasIdentity',
    params: 1
});

var newGroup = new Method({
    name: 'newGroup',
    call: 'shh_newGroup',
    params: 0
});

var addToGroup = new Method({
    name: 'addToGroup',
    call: 'shh_addToGroup',
    params: 0
});

var methods = [
    post,
    newIdentity,
    hasIdentity,
    newGroup,
    addToGroup
];

module.exports = {
    methods: methods
};


},{"../formatters":29,"../method":35}],40:[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 watches.js
 * @authors:
 *   Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var Method = require('../method');

/// @returns an array of objects describing web3.eth.filter api methods
var eth = function () {
    var newFilterCall = function (args) {
        var type = args[0];

        switch(type) {
            case 'latest':
                args.shift();
                this.params = 0;
                return 'eth_newBlockFilter';
            case 'pending':
                args.shift();
                this.params = 0;
                return 'eth_newPendingTransactionFilter';
            default:
                return 'eth_newFilter';
        }
    };

    var newFilter = new Method({
        name: 'newFilter',
        call: newFilterCall,
        params: 1
    });

    var uninstallFilter = new Method({
        name: 'uninstallFilter',
        call: 'eth_uninstallFilter',
        params: 1
    });

    var getLogs = new Method({
        name: 'getLogs',
        call: 'eth_getFilterLogs',
        params: 1
    });

    var poll = new Method({
        name: 'poll',
        call: 'eth_getFilterChanges',
        params: 1
    });

    return [
        newFilter,
        uninstallFilter,
        getLogs,
        poll
    ];
};

/// @returns an array of objects describing web3.shh.watch api methods
var shh = function () {
    var newFilter = new Method({
        name: 'newFilter',
        call: 'shh_newFilter',
        params: 1
    });

    var uninstallFilter = new Method({
        name: 'uninstallFilter',
        call: 'shh_uninstallFilter',
        params: 1
    });

    var getLogs = new Method({
        name: 'getLogs',
        call: 'shh_getMessages',
        params: 1
    });

    var poll = new Method({
        name: 'poll',
        call: 'shh_getFilterChanges',
        params: 1
    });

    return [
        newFilter,
        uninstallFilter,
        getLogs,
        poll
    ];
};

module.exports = {
    eth: eth,
    shh: shh
};


},{"../method":35}],41:[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 namereg.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var contract = require('./contract');
var globalRegistrarAbi = require('../contracts/GlobalRegistrar.json');
var icapRegistrarAbi= require('../contracts/ICAPRegistrar.json');

var globalNameregAddress = '0xc6d9d2cd449a754c494264e1809c50e34d64562b';
var ibanNameregAddress = '0xa1a111bc074c9cfa781f0c38e63bd51c91b8af00';

module.exports = {
    namereg: contract(globalRegistrarAbi).at(globalNameregAddress),
    ibanNamereg: contract(icapRegistrarAbi).at(ibanNameregAddress)
};


},{"../contracts/GlobalRegistrar.json":1,"../contracts/ICAPRegistrar.json":2,"./contract":25}],42:[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 property.js
 * @author Fabian Vogelsteller <fabian@frozeman.de>
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var RequestManager = require('./requestmanager');
var utils = require('../utils/utils');

var Property = function (options) {
    this.name = options.name;
    this.getter = options.getter;
    this.setter = options.setter;
    this.outputFormatter = options.outputFormatter;
    this.inputFormatter = options.inputFormatter;
};

/**
 * Should be called to format input args of method
 * 
 * @method formatInput
 * @param {Array}
 * @return {Array}
 */
Property.prototype.formatInput = function (arg) {
    return this.inputFormatter ? this.inputFormatter(arg) : arg;
};

/**
 * Should be called to format output(result) of method
 *
 * @method formatOutput
 * @param {Object}
 * @return {Object}
 */
Property.prototype.formatOutput = function (result) {
    return this.outputFormatter && result !== null ? this.outputFormatter(result) : result;
};

/**
 * Should be used to extract callback from array of arguments. Modifies input param
 *
 * @method extractCallback
 * @param {Array} arguments
 * @return {Function|Null} callback, if exists
 */
Property.prototype.extractCallback = function (args) {
    if (utils.isFunction(args[args.length - 1])) {
        return args.pop(); // modify the args array!
    }
};

/**
 * Should attach function to method
 * 
 * @method attachToObject
 * @param {Object}
 * @param {Function}
 */
Property.prototype.attachToObject = function (obj) {
    var proto = {
        get: this.get.bind(this),
    };

    var names = this.name.split('.');
    var name = names[0];
    if (names.length > 1) {
        obj[names[0]] = obj[names[0]] || {};
        obj = obj[names[0]];
        name = names[1];
    }
    
    Object.defineProperty(obj, name, proto);

    var toAsyncName = function (prefix, name) {
        return prefix + name.charAt(0).toUpperCase() + name.slice(1);
    };

    var func = this.getAsync.bind(this);
    func.request = this.request.bind(this);

    obj[toAsyncName('get', name)] = func;
};

/**
 * Should be used to get value of the property
 *
 * @method get
 * @return {Object} value of the property
 */
Property.prototype.get = function () {
    return this.formatOutput(RequestManager.getInstance().send({
        method: this.getter
    }));
};

/**
 * Should be used to asynchrounously get value of property
 *
 * @method getAsync
 * @param {Function}
 */
Property.prototype.getAsync = function (callback) {
    var self = this;
    RequestManager.getInstance().sendAsync({
        method: this.getter
    }, function (err, result) {
        if (err) {
            return callback(err);
        }
        callback(err, self.formatOutput(result));
    });
};

/**
 * Should be called to create pure JSONRPC request which can be used in batch request
 *
 * @method request
 * @param {...} params
 * @return {Object} jsonrpc request
 */
Property.prototype.request = function () {
    var payload = {
        method: this.getter,
        params: [],
        callback: this.extractCallback(Array.prototype.slice.call(arguments))
    };
    payload.format = this.formatOutput.bind(this);
    return payload;
};

module.exports = Property;


},{"../utils/utils":20,"./requestmanager":43}],43:[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 requestmanager.js
 * @author Jeffrey Wilcke <jeff@ethdev.com>
 * @author Marek Kotewicz <marek@ethdev.com>
 * @author Marian Oancea <marian@ethdev.com>
 * @author Fabian Vogelsteller <fabian@ethdev.com>
 * @author Gav Wood <g@ethdev.com>
 * @date 2014
 */

var Jsonrpc = require('./jsonrpc');
var utils = require('../utils/utils');
var c = require('../utils/config');
var errors = require('./errors');

/**
 * It's responsible for passing messages to providers
 * It's also responsible for polling the ethereum node for incoming messages
 * Default poll timeout is 1 second
 * Singleton
 */
var RequestManager = function (provider) {
    // singleton pattern
    if (arguments.callee._singletonInstance) {
        return arguments.callee._singletonInstance;
    }
    arguments.callee._singletonInstance = this;

    this.provider = provider;
    this.polls = {};
    this.timeout = null;
    this.isPolling = false;
};

/**
 * @return {RequestManager} singleton
 */
RequestManager.getInstance = function () {
    var instance = new RequestManager();
    return instance;
};

/**
 * Should be used to synchronously send request
 *
 * @method send
 * @param {Object} data
 * @return {Object}
 */
RequestManager.prototype.send = function (data) {
    if (!this.provider) {
        console.error(errors.InvalidProvider());
        return null;
    }

    var payload = Jsonrpc.getInstance().toPayload(data.method, data.params);
    var result = this.provider.send(payload);

    if (!Jsonrpc.getInstance().isValidResponse(result)) {
        throw errors.InvalidResponse(result);
    }

    return result.result;
};

/**
 * Should be used to asynchronously send request
 *
 * @method sendAsync
 * @param {Object} data
 * @param {Function} callback
 */
RequestManager.prototype.sendAsync = function (data, callback) {
    if (!this.provider) {
        return callback(errors.InvalidProvider());
    }

    var payload = Jsonrpc.getInstance().toPayload(data.method, data.params);
    this.provider.sendAsync(payload, function (err, result) {
        if (err) {
            return callback(err);
        }
        
        if (!Jsonrpc.getInstance().isValidResponse(result)) {
            return callback(errors.InvalidResponse(result));
        }

        callback(null, result.result);
    });
};

/**
 * Should be called to asynchronously send batch request
 *
 * @method sendBatch
 * @param {Array} batch data
 * @param {Function} callback
 */
RequestManager.prototype.sendBatch = function (data, callback) {
    if (!this.provider) {
        return callback(errors.InvalidProvider());
    }

    var payload = Jsonrpc.getInstance().toBatchPayload(data);

    this.provider.sendAsync(payload, function (err, results) {
        if (err) {
            return callback(err);
        }

        if (!utils.isArray(results)) {
            return callback(errors.InvalidResponse(results));
        }

        callback(err, results);
    }); 
};

/**
 * Should be used to set provider of request manager
 *
 * @method setProvider
 * @param {Object}
 */
RequestManager.prototype.setProvider = function (p) {
    this.provider = p;

    if (this.provider && !this.isPolling) {
        this.poll();
        this.isPolling = true;
    }
};

/**
 * Should be used to start polling
 *
 * @method startPolling
 * @param {Object} data
 * @param {Number} pollId
 * @param {Function} callback
 * @param {Function} uninstall
 *
 * @todo cleanup number of params
 */
RequestManager.prototype.startPolling = function (data, pollId, callback, uninstall) {
    this.polls[pollId] = {data: data, id: pollId, callback: callback, uninstall: uninstall};
};

/**
 * Should be used to stop polling for filter with given id
 *
 * @method stopPolling
 * @param {Number} pollId
 */
RequestManager.prototype.stopPolling = function (pollId) {
    delete this.polls[pollId];
};

/**
 * Should be called to reset the polling mechanism of the request manager
 *
 * @method reset
 */
RequestManager.prototype.reset = function () {
    for (var key in this.polls) {
        this.polls[key].uninstall();
    }
    this.polls = {};

    if (this.timeout) {
        clearTimeout(this.timeout);
        this.timeout = null;
    }
    this.poll();
};

/**
 * Should be called to poll for changes on filter with given id
 *
 * @method poll
 */
RequestManager.prototype.poll = function () {
    /*jshint maxcomplexity: 6 */
    this.timeout = setTimeout(this.poll.bind(this), c.ETH_POLLING_TIMEOUT);

    if (Object.keys(this.polls).length === 0) {
        return;
    }

    if (!this.provider) {
        console.error(errors.InvalidProvider());
        return;
    }

    var pollsData = [];
    var pollsKeys = [];
    for (var key in this.polls) {
        pollsData.push(this.polls[key].data);
        pollsKeys.push(key);
    }

    if (pollsData.length === 0) {
        return;
    }

    var payload = Jsonrpc.getInstance().toBatchPayload(pollsData);

    var self = this;
    this.provider.sendAsync(payload, function (error, results) {
        // TODO: console log?
        if (error) {
            return;
        }

        if (!utils.isArray(results)) {
            throw errors.InvalidResponse(results);
        }

        results.map(function (result, index) {
            var key = pollsKeys[index];
            // make sure the filter is still installed after arrival of the request
            if (self.polls[key]) {
                result.callback = self.polls[key].callback;
                return result;
            } else
                return false;
        }).filter(function (result) {
            return !!result; 
        }).filter(function (result) {
            var valid = Jsonrpc.getInstance().isValidResponse(result);
            if (!valid) {
                result.callback(errors.InvalidResponse(result));
            }
            return valid;
        }).filter(function (result) {
            return utils.isArray(result.result) && result.result.length > 0;
        }).forEach(function (result) {
            result.callback(null, result.result);
        });
    });
};

module.exports = RequestManager;


},{"../utils/config":18,"../utils/utils":20,"./errors":26,"./jsonrpc":34}],44:[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 transfer.js
 * @author Marek Kotewicz <marek@ethdev.com>
 * @date 2015
 */

var web3 = require('../web3');
var Iban = require('./iban');
var namereg = require('./namereg').ibanNamereg;
var contract = require('./contract');
var exchangeAbi = require('../contracts/SmartExchange.json');

/**
 * Should be used to make Iban transfer
 *
 * @method transfer
 * @param {String} from
 * @param {String} to iban
 * @param {Value} value to be tranfered
 * @param {Function} callback, callback
 */
var transfer = function (from, to, value, callback) {
    var iban = new Iban(to); 
    if (!iban.isValid()) {
        throw new Error('invalid iban address');
    }

    if (iban.isDirect()) {
        return transferToAddress(from, iban.address(), value, callback);
    }
    
    if (!callback) {
        var address = namereg.addr(iban.institution());
        return deposit(from, address, value, iban.client());
    }

    namereg.addr(iban.institution(), function (err, address) {
        return deposit(from, address, value, iban.client(), callback);
    });
    
};

/**
 * Should be used to transfer funds to certain address
 *
 * @method transferToAddress
 * @param {String} from
 * @param {String} to
 * @param {Value} value to be tranfered
 * @param {Function} callback, callback
 */
var transferToAddress = function (from, to, value, callback) {
    return web3.eth.sendTransaction({
        address: to,
        from: from,
        value: value
    }, callback);
};

/**
 * Should be used to deposit funds to generic Exchange contract (must implement deposit(bytes32) method!)
 *
 * @method deposit
 * @param {String} from
 * @param {String} to
 * @param {Value} value to be transfered
 * @param {String} client unique identifier
 * @param {Function} callback, callback
 */
var deposit = function (from, to, value, client, callback) {
    var abi = exchangeAbi;
    return contract(abi).at(to).deposit(client, {
        from: from,
        value: value
    }, callback);
};

module.exports = transfer;


},{"../contracts/SmartExchange.json":3,"../web3":22,"./contract":25,"./iban":32,"./namereg":41}],45:[function(require,module,exports){

},{}],46:[function(require,module,exports){
;(function (root, factory) {
	if (typeof exports === "object") {
		// CommonJS
		module.exports = exports = factory();
	}
	else if (typeof define === "function" && define.amd) {
		// AMD
		define([], factory);
	}
	else {
		// Global (browser)
		root.CryptoJS = factory();
	}
}(this, function () {

	/**
	 * CryptoJS core components.
	 */
	var CryptoJS = CryptoJS || (function (Math, undefined) {
	    /**
	     * CryptoJS namespace.
	     */
	    var C = {};

	    /**
	     * Library namespace.
	     */
	    var C_lib = C.lib = {};

	    /**
	     * Base object for prototypal inheritance.
	     */
	    var Base = C_lib.Base = (function () {
	        function F() {}

	        return {
	            /**
	             * Creates a new object that inherits from this object.
	             *
	             * @param {Object} overrides Properties to copy into the new object.
	             *
	             * @return {Object} The new object.
	             *
	             * @static
	             *
	             * @example
	             *
	             *     var MyType = CryptoJS.lib.Base.extend({
	             *         field: 'value',
	             *
	             *         method: function () {
	             *         }
	             *     });
	             */
	            extend: function (overrides) {
	                // Spawn
	                F.prototype = this;
	                var subtype = new F();

	                // Augment
	                if (overrides) {
	                    subtype.mixIn(overrides);
	                }

	                // Create default initializer
	                if (!subtype.hasOwnProperty('init')) {
	                    subtype.init = function () {
	                        subtype.$super.init.apply(this, arguments);
	                    };
	                }

	                // Initializer's prototype is the subtype object
	                subtype.init.prototype = subtype;

	                // Reference supertype
	                subtype.$super = this;

	                return subtype;
	            },

	            /**
	             * Extends this object and runs the init method.
	             * Arguments to create() will be passed to init().
	             *
	             * @return {Object} The new object.
	             *
	             * @static
	             *
	             * @example
	             *
	             *     var instance = MyType.create();
	             */
	            create: function () {
	                var instance = this.extend();
	                instance.init.apply(instance, arguments);

	                return instance;
	            },

	            /**
	             * Initializes a newly created object.
	             * Override this method to add some logic when your objects are created.
	             *
	             * @example
	             *
	             *     var MyType = CryptoJS.lib.Base.extend({
	             *         init: function () {
	             *             // ...
	             *         }
	             *     });
	             */
	            init: function () {
	            },

	            /**
	             * Copies properties into this object.
	             *
	             * @param {Object} properties The properties to mix in.
	             *
	             * @example
	             *
	             *     MyType.mixIn({
	             *         field: 'value'
	             *     });
	             */
	            mixIn: function (properties) {
	                for (var propertyName in properties) {
	                    if (properties.hasOwnProperty(propertyName)) {
	                        this[propertyName] = properties[propertyName];
	                    }
	                }

	                // IE won't copy toString using the loop above
	                if (properties.hasOwnProperty('toString')) {
	                    this.toString = properties.toString;
	                }
	            },

	            /**
	             * Creates a copy of this object.
	             *
	             * @return {Object} The clone.
	             *
	             * @example
	             *
	             *     var clone = instance.clone();
	             */
	            clone: function () {
	                return this.init.prototype.extend(this);
	            }
	        };
	    }());

	    /**
	     * An array of 32-bit words.
	     *
	     * @property {Array} words The array of 32-bit words.
	     * @property {number} sigBytes The number of significant bytes in this word array.
	     */
	    var WordArray = C_lib.WordArray = Base.extend({
	        /**
	         * Initializes a newly created word array.
	         *
	         * @param {Array} words (Optional) An array of 32-bit words.
	         * @param {number} sigBytes (Optional) The number of significant bytes in the words.
	         *
	         * @example
	         *
	         *     var wordArray = CryptoJS.lib.WordArray.create();
	         *     var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607]);
	         *     var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607], 6);
	         */
	        init: function (words, sigBytes) {
	            words = this.words = words || [];

	            if (sigBytes != undefined) {
	                this.sigBytes = sigBytes;
	            } else {
	                this.sigBytes = words.length * 4;
	            }
	        },

	        /**
	         * Converts this word array to a string.
	         *
	         * @param {Encoder} encoder (Optional) The encoding strategy to use. Default: CryptoJS.enc.Hex
	         *
	         * @return {string} The stringified word array.
	         *
	         * @example
	         *
	         *     var string = wordArray + '';
	         *     var string = wordArray.toString();
	         *     var string = wordArray.toString(CryptoJS.enc.Utf8);
	         */
	        toString: function (encoder) {
	            return (encoder || Hex).stringify(this);
	        },

	        /**
	         * Concatenates a word array to this word array.
	         *
	         * @param {WordArray} wordArray The word array to append.
	         *
	         * @return {WordArray} This word array.
	         *
	         * @example
	         *
	         *     wordArray1.concat(wordArray2);
	         */
	        concat: function (wordArray) {
	            // Shortcuts
	            var thisWords = this.words;
	            var thatWords = wordArray.words;
	            var thisSigBytes = this.sigBytes;
	            var thatSigBytes = wordArray.sigBytes;

	            // Clamp excess bits
	            this.clamp();

	            // Concat
	            if (thisSigBytes % 4) {
	                // Copy one byte at a time
	                for (var i = 0; i < thatSigBytes; i++) {
	                    var thatByte = (thatWords[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
	                    thisWords[(thisSigBytes + i) >>> 2] |= thatByte << (24 - ((thisSigBytes + i) % 4) * 8);
	                }
	            } else {
	                // Copy one word at a time
	                for (var i = 0; i < thatSigBytes; i += 4) {
	                    thisWords[(thisSigBytes + i) >>> 2] = thatWords[i >>> 2];
	                }
	            }
	            this.sigBytes += thatSigBytes;

	            // Chainable
	            return this;
	        },

	        /**
	         * Removes insignificant bits.
	         *
	         * @example
	         *
	         *     wordArray.clamp();
	         */
	        clamp: function () {
	            // Shortcuts
	            var words = this.words;
	            var sigBytes = this.sigBytes;

	            // Clamp
	            words[sigBytes >>> 2] &= 0xffffffff << (32 - (sigBytes % 4) * 8);
	            words.length = Math.ceil(sigBytes / 4);
	        },

	        /**
	         * Creates a copy of this word array.
	         *
	         * @return {WordArray} The clone.
	         *
	         * @example
	         *
	         *     var clone = wordArray.clone();
	         */
	        clone: function () {
	            var clone = Base.clone.call(this);
	            clone.words = this.words.slice(0);

	            return clone;
	        },

	        /**
	         * Creates a word array filled with random bytes.
	         *
	         * @param {number} nBytes The number of random bytes to generate.
	         *
	         * @return {WordArray} The random word array.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var wordArray = CryptoJS.lib.WordArray.random(16);
	         */
	        random: function (nBytes) {
	            var words = [];

	            var r = (function (m_w) {
	                var m_w = m_w;
	                var m_z = 0x3ade68b1;
	                var mask = 0xffffffff;

	                return function () {
	                    m_z = (0x9069 * (m_z & 0xFFFF) + (m_z >> 0x10)) & mask;
	                    m_w = (0x4650 * (m_w & 0xFFFF) + (m_w >> 0x10)) & mask;
	                    var result = ((m_z << 0x10) + m_w) & mask;
	                    result /= 0x100000000;
	                    result += 0.5;
	                    return result * (Math.random() > .5 ? 1 : -1);
	                }
	            });

	            for (var i = 0, rcache; i < nBytes; i += 4) {
	                var _r = r((rcache || Math.random()) * 0x100000000);

	                rcache = _r() * 0x3ade67b7;
	                words.push((_r() * 0x100000000) | 0);
	            }

	            return new WordArray.init(words, nBytes);
	        }
	    });

	    /**
	     * Encoder namespace.
	     */
	    var C_enc = C.enc = {};

	    /**
	     * Hex encoding strategy.
	     */
	    var Hex = C_enc.Hex = {
	        /**
	         * Converts a word array to a hex string.
	         *
	         * @param {WordArray} wordArray The word array.
	         *
	         * @return {string} The hex string.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var hexString = CryptoJS.enc.Hex.stringify(wordArray);
	         */
	        stringify: function (wordArray) {
	            // Shortcuts
	            var words = wordArray.words;
	            var sigBytes = wordArray.sigBytes;

	            // Convert
	            var hexChars = [];
	            for (var i = 0; i < sigBytes; i++) {
	                var bite = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
	                hexChars.push((bite >>> 4).toString(16));
	                hexChars.push((bite & 0x0f).toString(16));
	            }

	            return hexChars.join('');
	        },

	        /**
	         * Converts a hex string to a word array.
	         *
	         * @param {string} hexStr The hex string.
	         *
	         * @return {WordArray} The word array.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var wordArray = CryptoJS.enc.Hex.parse(hexString);
	         */
	        parse: function (hexStr) {
	            // Shortcut
	            var hexStrLength = hexStr.length;

	            // Convert
	            var words = [];
	            for (var i = 0; i < hexStrLength; i += 2) {
	                words[i >>> 3] |= parseInt(hexStr.substr(i, 2), 16) << (24 - (i % 8) * 4);
	            }

	            return new WordArray.init(words, hexStrLength / 2);
	        }
	    };

	    /**
	     * Latin1 encoding strategy.
	     */
	    var Latin1 = C_enc.Latin1 = {
	        /**
	         * Converts a word array to a Latin1 string.
	         *
	         * @param {WordArray} wordArray The word array.
	         *
	         * @return {string} The Latin1 string.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var latin1String = CryptoJS.enc.Latin1.stringify(wordArray);
	         */
	        stringify: function (wordArray) {
	            // Shortcuts
	            var words = wordArray.words;
	            var sigBytes = wordArray.sigBytes;

	            // Convert
	            var latin1Chars = [];
	            for (var i = 0; i < sigBytes; i++) {
	                var bite = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
	                latin1Chars.push(String.fromCharCode(bite));
	            }

	            return latin1Chars.join('');
	        },

	        /**
	         * Converts a Latin1 string to a word array.
	         *
	         * @param {string} latin1Str The Latin1 string.
	         *
	         * @return {WordArray} The word array.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var wordArray = CryptoJS.enc.Latin1.parse(latin1String);
	         */
	        parse: function (latin1Str) {
	            // Shortcut
	            var latin1StrLength = latin1Str.length;

	            // Convert
	            var words = [];
	            for (var i = 0; i < latin1StrLength; i++) {
	                words[i >>> 2] |= (latin1Str.charCodeAt(i) & 0xff) << (24 - (i % 4) * 8);
	            }

	            return new WordArray.init(words, latin1StrLength);
	        }
	    };

	    /**
	     * UTF-8 encoding strategy.
	     */
	    var Utf8 = C_enc.Utf8 = {
	        /**
	         * Converts a word array to a UTF-8 string.
	         *
	         * @param {WordArray} wordArray The word array.
	         *
	         * @return {string} The UTF-8 string.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var utf8String = CryptoJS.enc.Utf8.stringify(wordArray);
	         */
	        stringify: function (wordArray) {
	            try {
	                return decodeURIComponent(escape(Latin1.stringify(wordArray)));
	            } catch (e) {
	                throw new Error('Malformed UTF-8 data');
	            }
	        },

	        /**
	         * Converts a UTF-8 string to a word array.
	         *
	         * @param {string} utf8Str The UTF-8 string.
	         *
	         * @return {WordArray} The word array.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var wordArray = CryptoJS.enc.Utf8.parse(utf8String);
	         */
	        parse: function (utf8Str) {
	            return Latin1.parse(unescape(encodeURIComponent(utf8Str)));
	        }
	    };

	    /**
	     * Abstract buffered block algorithm template.
	     *
	     * The property blockSize must be implemented in a concrete subtype.
	     *
	     * @property {number} _minBufferSize The number of blocks that should be kept unprocessed in the buffer. Default: 0
	     */
	    var BufferedBlockAlgorithm = C_lib.BufferedBlockAlgorithm = Base.extend({
	        /**
	         * Resets this block algorithm's data buffer to its initial state.
	         *
	         * @example
	         *
	         *     bufferedBlockAlgorithm.reset();
	         */
	        reset: function () {
	            // Initial values
	            this._data = new WordArray.init();
	            this._nDataBytes = 0;
	        },

	        /**
	         * Adds new data to this block algorithm's buffer.
	         *
	         * @param {WordArray|string} data The data to append. Strings are converted to a WordArray using UTF-8.
	         *
	         * @example
	         *
	         *     bufferedBlockAlgorithm._append('data');
	         *     bufferedBlockAlgorithm._append(wordArray);
	         */
	        _append: function (data) {
	            // Convert string to WordArray, else assume WordArray already
	            if (typeof data == 'string') {
	                data = Utf8.parse(data);
	            }

	            // Append
	            this._data.concat(data);
	            this._nDataBytes += data.sigBytes;
	        },

	        /**
	         * Processes available data blocks.
	         *
	         * This method invokes _doProcessBlock(offset), which must be implemented by a concrete subtype.
	         *
	         * @param {boolean} doFlush Whether all blocks and partial blocks should be processed.
	         *
	         * @return {WordArray} The processed data.
	         *
	         * @example
	         *
	         *     var processedData = bufferedBlockAlgorithm._process();
	         *     var processedData = bufferedBlockAlgorithm._process(!!'flush');
	         */
	        _process: function (doFlush) {
	            // Shortcuts
	            var data = this._data;
	            var dataWords = data.words;
	            var dataSigBytes = data.sigBytes;
	            var blockSize = this.blockSize;
	            var blockSizeBytes = blockSize * 4;

	            // Count blocks ready
	            var nBlocksReady = dataSigBytes / blockSizeBytes;
	            if (doFlush) {
	                // Round up to include partial blocks
	                nBlocksReady = Math.ceil(nBlocksReady);
	            } else {
	                // Round down to include only full blocks,
	                // less the number of blocks that must remain in the buffer
	                nBlocksReady = Math.max((nBlocksReady | 0) - this._minBufferSize, 0);
	            }

	            // Count words ready
	            var nWordsReady = nBlocksReady * blockSize;

	            // Count bytes ready
	            var nBytesReady = Math.min(nWordsReady * 4, dataSigBytes);

	            // Process blocks
	            if (nWordsReady) {
	                for (var offset = 0; offset < nWordsReady; offset += blockSize) {
	                    // Perform concrete-algorithm logic
	                    this._doProcessBlock(dataWords, offset);
	                }

	                // Remove processed words
	                var processedWords = dataWords.splice(0, nWordsReady);
	                data.sigBytes -= nBytesReady;
	            }

	            // Return processed words
	            return new WordArray.init(processedWords, nBytesReady);
	        },

	        /**
	         * Creates a copy of this object.
	         *
	         * @return {Object} The clone.
	         *
	         * @example
	         *
	         *     var clone = bufferedBlockAlgorithm.clone();
	         */
	        clone: function () {
	            var clone = Base.clone.call(this);
	            clone._data = this._data.clone();

	            return clone;
	        },

	        _minBufferSize: 0
	    });

	    /**
	     * Abstract hasher template.
	     *
	     * @property {number} blockSize The number of 32-bit words this hasher operates on. Default: 16 (512 bits)
	     */
	    var Hasher = C_lib.Hasher = BufferedBlockAlgorithm.extend({
	        /**
	         * Configuration options.
	         */
	        cfg: Base.extend(),

	        /**
	         * Initializes a newly created hasher.
	         *
	         * @param {Object} cfg (Optional) The configuration options to use for this hash computation.
	         *
	         * @example
	         *
	         *     var hasher = CryptoJS.algo.SHA256.create();
	         */
	        init: function (cfg) {
	            // Apply config defaults
	            this.cfg = this.cfg.extend(cfg);

	            // Set initial values
	            this.reset();
	        },

	        /**
	         * Resets this hasher to its initial state.
	         *
	         * @example
	         *
	         *     hasher.reset();
	         */
	        reset: function () {
	            // Reset data buffer
	            BufferedBlockAlgorithm.reset.call(this);

	            // Perform concrete-hasher logic
	            this._doReset();
	        },

	        /**
	         * Updates this hasher with a message.
	         *
	         * @param {WordArray|string} messageUpdate The message to append.
	         *
	         * @return {Hasher} This hasher.
	         *
	         * @example
	         *
	         *     hasher.update('message');
	         *     hasher.update(wordArray);
	         */
	        update: function (messageUpdate) {
	            // Append
	            this._append(messageUpdate);

	            // Update the hash
	            this._process();

	            // Chainable
	            return this;
	        },

	        /**
	         * Finalizes the hash computation.
	         * Note that the finalize operation is effectively a destructive, read-once operation.
	         *
	         * @param {WordArray|string} messageUpdate (Optional) A final message update.
	         *
	         * @return {WordArray} The hash.
	         *
	         * @example
	         *
	         *     var hash = hasher.finalize();
	         *     var hash = hasher.finalize('message');
	         *     var hash = hasher.finalize(wordArray);
	         */
	        finalize: function (messageUpdate) {
	            // Final message update
	            if (messageUpdate) {
	                this._append(messageUpdate);
	            }

	            // Perform concrete-hasher logic
	            var hash = this._doFinalize();

	            return hash;
	        },

	        blockSize: 512/32,

	        /**
	         * Creates a shortcut function to a hasher's object interface.
	         *
	         * @param {Hasher} hasher The hasher to create a helper for.
	         *
	         * @return {Function} The shortcut function.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var SHA256 = CryptoJS.lib.Hasher._createHelper(CryptoJS.algo.SHA256);
	         */
	        _createHelper: function (hasher) {
	            return function (message, cfg) {
	                return new hasher.init(cfg).finalize(message);
	            };
	        },

	        /**
	         * Creates a shortcut function to the HMAC's object interface.
	         *
	         * @param {Hasher} hasher The hasher to use in this HMAC helper.
	         *
	         * @return {Function} The shortcut function.
	         *
	         * @static
	         *
	         * @example
	         *
	         *     var HmacSHA256 = CryptoJS.lib.Hasher._createHmacHelper(CryptoJS.algo.SHA256);
	         */
	        _createHmacHelper: function (hasher) {
	            return function (message, key) {
	                return new C_algo.HMAC.init(hasher, key).finalize(message);
	            };
	        }
	    });

	    /**
	     * Algorithm namespace.
	     */
	    var C_algo = C.algo = {};

	    return C;
	}(Math));


	return CryptoJS;

}));
},{}],47:[function(require,module,exports){
;(function (root, factory, undef) {
	if (typeof exports === "object") {
		// CommonJS
		module.exports = exports = factory(require("./core"), require("./x64-core"));
	}
	else if (typeof define === "function" && define.amd) {
		// AMD
		define(["./core", "./x64-core"], factory);
	}
	else {
		// Global (browser)
		factory(root.CryptoJS);
	}
}(this, function (CryptoJS) {

	(function (Math) {
	    // Shortcuts
	    var C = CryptoJS;
	    var C_lib = C.lib;
	    var WordArray = C_lib.WordArray;
	    var Hasher = C_lib.Hasher;
	    var C_x64 = C.x64;
	    var X64Word = C_x64.Word;
	    var C_algo = C.algo;

	    // Constants tables
	    var RHO_OFFSETS = [];
	    var PI_INDEXES  = [];
	    var ROUND_CONSTANTS = [];

	    // Compute Constants
	    (function () {
	        // Compute rho offset constants
	        var x = 1, y = 0;
	        for (var t = 0; t < 24; t++) {
	            RHO_OFFSETS[x + 5 * y] = ((t + 1) * (t + 2) / 2) % 64;

	            var newX = y % 5;
	            var newY = (2 * x + 3 * y) % 5;
	            x = newX;
	            y = newY;
	        }

	        // Compute pi index constants
	        for (var x = 0; x < 5; x++) {
	            for (var y = 0; y < 5; y++) {
	                PI_INDEXES[x + 5 * y] = y + ((2 * x + 3 * y) % 5) * 5;
	            }
	        }

	        // Compute round constants
	        var LFSR = 0x01;
	        for (var i = 0; i < 24; i++) {
	            var roundConstantMsw = 0;
	            var roundConstantLsw = 0;

	            for (var j = 0; j < 7; j++) {
	                if (LFSR & 0x01) {
	                    var bitPosition = (1 << j) - 1;
	                    if (bitPosition < 32) {
	                        roundConstantLsw ^= 1 << bitPosition;
	                    } else /* if (bitPosition >= 32) */ {
	                        roundConstantMsw ^= 1 << (bitPosition - 32);
	                    }
	                }

	                // Compute next LFSR
	                if (LFSR & 0x80) {
	                    // Primitive polynomial over GF(2): x^8 + x^6 + x^5 + x^4 + 1
	                    LFSR = (LFSR << 1) ^ 0x71;
	                } else {
	                    LFSR <<= 1;
	                }
	            }

	            ROUND_CONSTANTS[i] = X64Word.create(roundConstantMsw, roundConstantLsw);
	        }
	    }());

	    // Reusable objects for temporary values
	    var T = [];
	    (function () {
	        for (var i = 0; i < 25; i++) {
	            T[i] = X64Word.create();
	        }
	    }());

	    /**
	     * SHA-3 hash algorithm.
	     */
	    var SHA3 = C_algo.SHA3 = Hasher.extend({
	        /**
	         * Configuration options.
	         *
	         * @property {number} outputLength
	         *   The desired number of bits in the output hash.
	         *   Only values permitted are: 224, 256, 384, 512.
	         *   Default: 512
	         */
	        cfg: Hasher.cfg.extend({
	            outputLength: 512
	        }),

	        _doReset: function () {
	            var state = this._state = []
	            for (var i = 0; i < 25; i++) {
	                state[i] = new X64Word.init();
	            }

	            this.blockSize = (1600 - 2 * this.cfg.outputLength) / 32;
	        },

	        _doProcessBlock: function (M, offset) {
	            // Shortcuts
	            var state = this._state;
	            var nBlockSizeLanes = this.blockSize / 2;

	            // Absorb
	            for (var i = 0; i < nBlockSizeLanes; i++) {
	                // Shortcuts
	                var M2i  = M[offset + 2 * i];
	                var M2i1 = M[offset + 2 * i + 1];

	                // Swap endian
	                M2i = (
	                    (((M2i << 8)  | (M2i >>> 24)) & 0x00ff00ff) |
	                    (((M2i << 24) | (M2i >>> 8))  & 0xff00ff00)
	                );
	                M2i1 = (
	                    (((M2i1 << 8)  | (M2i1 >>> 24)) & 0x00ff00ff) |
	                    (((M2i1 << 24) | (M2i1 >>> 8))  & 0xff00ff00)
	                );

	                // Absorb message into state
	                var lane = state[i];
	                lane.high ^= M2i1;
	                lane.low  ^= M2i;
	            }

	            // Rounds
	            for (var round = 0; round < 24; round++) {
	                // Theta
	                for (var x = 0; x < 5; x++) {
	                    // Mix column lanes
	                    var tMsw = 0, tLsw = 0;
	                    for (var y = 0; y < 5; y++) {
	                        var lane = state[x + 5 * y];
	                        tMsw ^= lane.high;
	                        tLsw ^= lane.low;
	                    }

	                    // Temporary values
	                    var Tx = T[x];
	                    Tx.high = tMsw;
	                    Tx.low  = tLsw;
	                }
	                for (var x = 0; x < 5; x++) {
	                    // Shortcuts
	                    var Tx4 = T[(x + 4) % 5];
	                    var Tx1 = T[(x + 1) % 5];
	                    var Tx1Msw = Tx1.high;
	                    var Tx1Lsw = Tx1.low;

	                    // Mix surrounding columns
	                    var tMsw = Tx4.high ^ ((Tx1Msw << 1) | (Tx1Lsw >>> 31));
	                    var tLsw = Tx4.low  ^ ((Tx1Lsw << 1) | (Tx1Msw >>> 31));
	                    for (var y = 0; y < 5; y++) {
	                        var lane = state[x + 5 * y];
	                        lane.high ^= tMsw;
	                        lane.low  ^= tLsw;
	                    }
	                }

	                // Rho Pi
	                for (var laneIndex = 1; laneIndex < 25; laneIndex++) {
	                    // Shortcuts
	                    var lane = state[laneIndex];
	                    var laneMsw = lane.high;
	                    var laneLsw = lane.low;
	                    var rhoOffset = RHO_OFFSETS[laneIndex];

	                    // Rotate lanes
	                    if (rhoOffset < 32) {
	                        var tMsw = (laneMsw << rhoOffset) | (laneLsw >>> (32 - rhoOffset));
	                        var tLsw = (laneLsw << rhoOffset) | (laneMsw >>> (32 - rhoOffset));
	                    } else /* if (rhoOffset >= 32) */ {
	                        var tMsw = (laneLsw << (rhoOffset - 32)) | (laneMsw >>> (64 - rhoOffset));
	                        var tLsw = (laneMsw << (rhoOffset - 32)) | (laneLsw >>> (64 - rhoOffset));
	                    }

	                    // Transpose lanes
	                    var TPiLane = T[PI_INDEXES[laneIndex]];
	                    TPiLane.high = tMsw;
	                    TPiLane.low  = tLsw;
	                }

	                // Rho pi at x = y = 0
	                var T0 = T[0];
	                var state0 = state[0];
	                T0.high = state0.high;
	                T0.low  = state0.low;

	                // Chi
	                for (var x = 0; x < 5; x++) {
	                    for (var y = 0; y < 5; y++) {
	                        // Shortcuts
	                        var laneIndex = x + 5 * y;
	                        var lane = state[laneIndex];
	                        var TLane = T[laneIndex];
	                        var Tx1Lane = T[((x + 1) % 5) + 5 * y];
	                        var Tx2Lane = T[((x + 2) % 5) + 5 * y];

	                        // Mix rows
	                        lane.high = TLane.high ^ (~Tx1Lane.high & Tx2Lane.high);
	                        lane.low  = TLane.low  ^ (~Tx1Lane.low  & Tx2Lane.low);
	                    }
	                }

	                // Iota
	                var lane = state[0];
	                var roundConstant = ROUND_CONSTANTS[round];
	                lane.high ^= roundConstant.high;
	                lane.low  ^= roundConstant.low;;
	            }
	        },

	        _doFinalize: function () {
	            // Shortcuts
	            var data = this._data;
	            var dataWords = data.words;
	            var nBitsTotal = this._nDataBytes * 8;
	            var nBitsLeft = data.sigBytes * 8;
	            var blockSizeBits = this.blockSize * 32;

	            // Add padding
	            dataWords[nBitsLeft >>> 5] |= 0x1 << (24 - nBitsLeft % 32);
	            dataWords[((Math.ceil((nBitsLeft + 1) / blockSizeBits) * blockSizeBits) >>> 5) - 1] |= 0x80;
	            data.sigBytes = dataWords.length * 4;

	            // Hash final blocks
	            this._process();

	            // Shortcuts
	            var state = this._state;
	            var outputLengthBytes = this.cfg.outputLength / 8;
	            var outputLengthLanes = outputLengthBytes / 8;

	            // Squeeze
	            var hashWords = [];
	            for (var i = 0; i < outputLengthLanes; i++) {
	                // Shortcuts
	                var lane = state[i];
	                var laneMsw = lane.high;
	                var laneLsw = lane.low;

	                // Swap endian
	                laneMsw = (
	                    (((laneMsw << 8)  | (laneMsw >>> 24)) & 0x00ff00ff) |
	                    (((laneMsw << 24) | (laneMsw >>> 8))  & 0xff00ff00)
	                );
	                laneLsw = (
	                    (((laneLsw << 8)  | (laneLsw >>> 24)) & 0x00ff00ff) |
	                    (((laneLsw << 24) | (laneLsw >>> 8))  & 0xff00ff00)
	                );

	                // Squeeze state to retrieve hash
	                hashWords.push(laneLsw);
	                hashWords.push(laneMsw);
	            }

	            // Return final computed hash
	            return new WordArray.init(hashWords, outputLengthBytes);
	        },

	        clone: function () {
	            var clone = Hasher.clone.call(this);

	            var state = clone._state = this._state.slice(0);
	            for (var i = 0; i < 25; i++) {
	                state[i] = state[i].clone();
	            }

	            return clone;
	        }
	    });

	    /**
	     * Shortcut function to the hasher's object interface.
	     *
	     * @param {WordArray|string} message The message to hash.
	     *
	     * @return {WordArray} The hash.
	     *
	     * @static
	     *
	     * @example
	     *
	     *     var hash = CryptoJS.SHA3('message');
	     *     var hash = CryptoJS.SHA3(wordArray);
	     */
	    C.SHA3 = Hasher._createHelper(SHA3);

	    /**
	     * Shortcut function to the HMAC's object interface.
	     *
	     * @param {WordArray|string} message The message to hash.
	     * @param {WordArray|string} key The secret key.
	     *
	     * @return {WordArray} The HMAC.
	     *
	     * @static
	     *
	     * @example
	     *
	     *     var hmac = CryptoJS.HmacSHA3(message, key);
	     */
	    C.HmacSHA3 = Hasher._createHmacHelper(SHA3);
	}(Math));


	return CryptoJS.SHA3;

}));
},{"./core":46,"./x64-core":48}],48:[function(require,module,exports){
;(function (root, factory) {
	if (typeof exports === "object") {
		// CommonJS
		module.exports = exports = factory(require("./core"));
	}
	else if (typeof define === "function" && define.amd) {
		// AMD
		define(["./core"], factory);
	}
	else {
		// Global (browser)
		factory(root.CryptoJS);
	}
}(this, function (CryptoJS) {

	(function (undefined) {
	    // Shortcuts
	    var C = CryptoJS;
	    var C_lib = C.lib;
	    var Base = C_lib.Base;
	    var X32WordArray = C_lib.WordArray;

	    /**
	     * x64 namespace.
	     */
	    var C_x64 = C.x64 = {};

	    /**
	     * A 64-bit word.
	     */
	    var X64Word = C_x64.Word = Base.extend({
	        /**
	         * Initializes a newly created 64-bit word.
	         *
	         * @param {number} high The high 32 bits.
	         * @param {number} low The low 32 bits.
	         *
	         * @example
	         *
	         *     var x64Word = CryptoJS.x64.Word.create(0x00010203, 0x04050607);
	         */
	        init: function (high, low) {
	            this.high = high;
	            this.low = low;
	        }

	        /**
	         * Bitwise NOTs this word.
	         *
	         * @return {X64Word} A new x64-Word object after negating.
	         *
	         * @example
	         *
	         *     var negated = x64Word.not();
	         */
	        // not: function () {
	            // var high = ~this.high;
	            // var low = ~this.low;

	            // return X64Word.create(high, low);
	        // },

	        /**
	         * Bitwise ANDs this word with the passed word.
	         *
	         * @param {X64Word} word The x64-Word to AND with this word.
	         *
	         * @return {X64Word} A new x64-Word object after ANDing.
	         *
	         * @example
	         *
	         *     var anded = x64Word.and(anotherX64Word);
	         */
	        // and: function (word) {
	            // var high = this.high & word.high;
	            // var low = this.low & word.low;

	            // return X64Word.create(high, low);
	        // },

	        /**
	         * Bitwise ORs this word with the passed word.
	         *
	         * @param {X64Word} word The x64-Word to OR with this word.
	         *
	         * @return {X64Word} A new x64-Word object after ORing.
	         *
	         * @example
	         *
	         *     var ored = x64Word.or(anotherX64Word);
	         */
	        // or: function (word) {
	            // var high = this.high | word.high;
	            // var low = this.low | word.low;

	            // return X64Word.create(high, low);
	        // },

	        /**
	         * Bitwise XORs this word with the passed word.
	         *
	         * @param {X64Word} word The x64-Word to XOR with this word.
	         *
	         * @return {X64Word} A new x64-Word object after XORing.
	         *
	         * @example
	         *
	         *     var xored = x64Word.xor(anotherX64Word);
	         */
	        // xor: function (word) {
	            // var high = this.high ^ word.high;
	            // var low = this.low ^ word.low;

	            // return X64Word.create(high, low);
	        // },

	        /**
	         * Shifts this word n bits to the left.
	         *
	         * @param {number} n The number of bits to shift.
	         *
	         * @return {X64Word} A new x64-Word object after shifting.
	         *
	         * @example
	         *
	         *     var shifted = x64Word.shiftL(25);
	         */
	        // shiftL: function (n) {
	            // if (n < 32) {
	                // var high = (this.high << n) | (this.low >>> (32 - n));
	                // var low = this.low << n;
	            // } else {
	                // var high = this.low << (n - 32);
	                // var low = 0;
	            // }

	            // return X64Word.create(high, low);
	        // },

	        /**
	         * Shifts this word n bits to the right.
	         *
	         * @param {number} n The number of bits to shift.
	         *
	         * @return {X64Word} A new x64-Word object after shifting.
	         *
	         * @example
	         *
	         *     var shifted = x64Word.shiftR(7);
	         */
	        // shiftR: function (n) {
	            // if (n < 32) {
	                // var low = (this.low >>> n) | (this.high << (32 - n));
	                // var high = this.high >>> n;
	            // } else {
	                // var low = this.high >>> (n - 32);
	                // var high = 0;
	            // }

	            // return X64Word.create(high, low);
	        // },

	        /**
	         * Rotates this word n bits to the left.
	         *
	         * @param {number} n The number of bits to rotate.
	         *
	         * @return {X64Word} A new x64-Word object after rotating.
	         *
	         * @example
	         *
	         *     var rotated = x64Word.rotL(25);
	         */
	        // rotL: function (n) {
	            // return this.shiftL(n).or(this.shiftR(64 - n));
	        // },

	        /**
	         * Rotates this word n bits to the right.
	         *
	         * @param {number} n The number of bits to rotate.
	         *
	         * @return {X64Word} A new x64-Word object after rotating.
	         *
	         * @example
	         *
	         *     var rotated = x64Word.rotR(7);
	         */
	        // rotR: function (n) {
	            // return this.shiftR(n).or(this.shiftL(64 - n));
	        // },

	        /**
	         * Adds this word with the passed word.
	         *
	         * @param {X64Word} word The x64-Word to add with this word.
	         *
	         * @return {X64Word} A new x64-Word object after adding.
	         *
	         * @example
	         *
	         *     var added = x64Word.add(anotherX64Word);
	         */
	        // add: function (word) {
	            // var low = (this.low + word.low) | 0;
	            // var carry = (low >>> 0) < (this.low >>> 0) ? 1 : 0;
	            // var high = (this.high + word.high + carry) | 0;

	            // return X64Word.create(high, low);
	        // }
	    });

	    /**
	     * An array of 64-bit words.
	     *
	     * @property {Array} words The array of CryptoJS.x64.Word objects.
	     * @property {number} sigBytes The number of significant bytes in this word array.
	     */
	    var X64WordArray = C_x64.WordArray = Base.extend({
	        /**
	         * Initializes a newly created word array.
	         *
	         * @param {Array} words (Optional) An array of CryptoJS.x64.Word objects.
	         * @param {number} sigBytes (Optional) The number of significant bytes in the words.
	         *
	         * @example
	         *
	         *     var wordArray = CryptoJS.x64.WordArray.create();
	         *
	         *     var wordArray = CryptoJS.x64.WordArray.create([
	         *         CryptoJS.x64.Word.create(0x00010203, 0x04050607),
	         *         CryptoJS.x64.Word.create(0x18191a1b, 0x1c1d1e1f)
	         *     ]);
	         *
	         *     var wordArray = CryptoJS.x64.WordArray.create([
	         *         CryptoJS.x64.Word.create(0x00010203, 0x04050607),
	         *         CryptoJS.x64.Word.create(0x18191a1b, 0x1c1d1e1f)
	         *     ], 10);
	         */
	        init: function (words, sigBytes) {
	            words = this.words = words || [];

	            if (sigBytes != undefined) {
	                this.sigBytes = sigBytes;
	            } else {
	                this.sigBytes = words.length * 8;
	            }
	        },

	        /**
	         * Converts this 64-bit word array to a 32-bit word array.
	         *
	         * @return {CryptoJS.lib.WordArray} This word array's data as a 32-bit word array.
	         *
	         * @example
	         *
	         *     var x32WordArray = x64WordArray.toX32();
	         */
	        toX32: function () {
	            // Shortcuts
	            var x64Words = this.words;
	            var x64WordsLength = x64Words.length;

	            // Convert
	            var x32Words = [];
	            for (var i = 0; i < x64WordsLength; i++) {
	                var x64Word = x64Words[i];
	                x32Words.push(x64Word.high);
	                x32Words.push(x64Word.low);
	            }

	            return X32WordArray.create(x32Words, this.sigBytes);
	        },

	        /**
	         * Creates a copy of this word array.
	         *
	         * @return {X64WordArray} The clone.
	         *
	         * @example
	         *
	         *     var clone = x64WordArray.clone();
	         */
	        clone: function () {
	            var clone = Base.clone.call(this);

	            // Clone "words" array
	            var words = clone.words = this.words.slice(0);

	            // Clone each X64Word object
	            var wordsLength = words.length;
	            for (var i = 0; i < wordsLength; i++) {
	                words[i] = words[i].clone();
	            }

	            return clone;
	        }
	    });
	}());


	return CryptoJS;

}));
},{"./core":46}],"bignumber.js":[function(require,module,exports){
'use strict';

module.exports = BigNumber; // jshint ignore:line


},{}],"web3":[function(require,module,exports){
var web3 = require('./lib/web3');
var namereg = require('./lib/web3/namereg');

web3.providers.HttpProvider = require('./lib/web3/httpprovider');
web3.providers.IpcProvider = require('./lib/web3/ipcprovider');

web3.eth.contract = require('./lib/web3/contract');
web3.eth.namereg = namereg.namereg;
web3.eth.ibanNamereg = namereg.ibanNamereg;
web3.eth.sendIBANTransaction = require('./lib/web3/transfer');
web3.eth.iban = require('./lib/web3/iban');

// dont override global variable
if (typeof window !== 'undefined' && typeof window.web3 === 'undefined') {
    window.web3 = web3;
}

module.exports = web3;


},{"./lib/web3":22,"./lib/web3/contract":25,"./lib/web3/httpprovider":31,"./lib/web3/iban":32,"./lib/web3/ipcprovider":33,"./lib/web3/namereg":41,"./lib/web3/transfer":44}]},{},["web3"])
//# sourceMappingURL=web3-light.js.map
`