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toAscii && fromAscii moved to utils

This commit is contained in:
Marek Kotewicz 2015-01-31 13:54:39 +01:00
parent 0b82a05a75
commit 4bdf52fc1e
7 changed files with 123 additions and 147 deletions
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130
dist/ethereum.js vendored
View File

@ -38,23 +38,6 @@ var ETH_PADDING = 32;
/// method signature length in bytes
var ETH_METHOD_SIGNATURE_LENGTH = 4;
/// @returns a function that is used as a pattern for 'findIndex'
var findMethodIndex = function (json, methodName) {
return utils.findIndex(json, function (method) {
return method.name === methodName;
});
};
/// @returns method with given method name
var getMethodWithName = function (json, methodName) {
var index = findMethodIndex(json, methodName);
if (index === -1) {
console.error('method ' + methodName + ' not found in the abi');
return undefined;
}
return json[index];
};
/// Filters all function from input abi
/// @returns abi array with filtered objects of type 'function'
var filterFunctions = function (json) {
@ -87,14 +70,11 @@ var dynamicTypeBytes = function (type, value) {
var inputTypes = types.inputTypes();
/// Formats input params to bytes
/// @param contract json abi
/// @param name of the method that we want to use
/// @param abi contract method
/// @param array of params that will be formatted to bytes
/// @returns bytes representation of input params
var toAbiInput = function (json, methodName, params) {
var toAbiInput = function (method, params) {
var bytes = "";
var method = getMethodWithName(json, methodName);
var padding = ETH_PADDING * 2;
/// first we iterate in search for dynamic
@ -135,15 +115,13 @@ var dynamicBytesLength = function (type) {
var outputTypes = types.outputTypes();
/// Formats output bytes back to param list
/// @param contract json abi
/// @param name of the method that we want to use
/// @param contract abi method
/// @param bytes representtion of output
/// @returns array of output params
var fromAbiOutput = function (json, methodName, output) {
var fromAbiOutput = function (method, output) {
output = output.slice(2);
var result = [];
var method = getMethodWithName(json, methodName);
var padding = ETH_PADDING * 2;
var dynamicPartLength = method.outputs.reduce(function (acc, curr) {
@ -195,7 +173,7 @@ var methodDisplayName = function (method) {
/// @returns overloaded part of method's name
var methodTypeName = function (method) {
/// TODO: make it not vulnerable
/// TODO: make it invulnerable
var length = method.indexOf('(');
return length !== -1 ? method.substr(length + 1, method.length - 1 - (length + 1)) : "";
};
@ -211,7 +189,7 @@ var inputParser = function (json) {
var impl = function () {
var params = Array.prototype.slice.call(arguments);
return toAbiInput(json, method.name, params);
return toAbiInput(method, params);
};
if (parser[displayName] === undefined) {
@ -234,7 +212,7 @@ var outputParser = function (json) {
var typeName = methodTypeName(method.name);
var impl = function (output) {
return fromAbiOutput(json, method.name, output);
return fromAbiOutput(method, output);
};
if (parser[displayName] === undefined) {
@ -259,7 +237,6 @@ module.exports = {
methodSignature: methodSignature,
methodDisplayName: methodDisplayName,
methodTypeName: methodTypeName,
getMethodWithName: getMethodWithName,
filterFunctions: filterFunctions,
filterEvents: filterEvents
};
@ -673,8 +650,7 @@ if ("build" !== 'build') {/*
var BigNumber = require('bignumber.js'); // jshint ignore:line
*/}
// TODO: remove web3 dependency from here!
var web3 = require('./web3');
var utils = require('./utils');
BigNumber.config({ ROUNDING_MODE: BigNumber.ROUND_DOWN });
@ -715,7 +691,7 @@ var formatInputInt = function (value) {
/// Formats input value to byte representation of string
/// @returns left-algined byte representation of string
var formatInputString = function (value) {
return web3.fromAscii(value, ETH_PADDING).substr(2);
return utils.fromAscii(value, ETH_PADDING).substr(2);
};
/// Formats input value to byte representation of bool
@ -780,7 +756,7 @@ var formatOutputBool = function (value) {
/// @returns left-aligned input bytes formatted to ascii string
var formatOutputString = function (value) {
return web3.toAscii(value);
return utils.toAscii(value);
};
/// @returns right-aligned input bytes formatted to address
@ -805,7 +781,7 @@ module.exports = {
};
},{"./web3":11}],6:[function(require,module,exports){
},{"./utils":10}],6:[function(require,module,exports){
/*
This file is part of ethereum.js.
@ -1140,8 +1116,50 @@ var findIndex = function (array, callback) {
return end ? i - 1 : -1;
};
/// @returns ascii string representation of hex value prefixed with 0x
var toAscii = function(hex) {
// Find termination
var str = "";
var i = 0, l = hex.length;
if (hex.substring(0, 2) === '0x') {
i = 2;
}
for (; i < l; i+=2) {
var code = parseInt(hex.substr(i, 2), 16);
if (code === 0) {
break;
}
str += String.fromCharCode(code);
}
return str;
};
var toHex = function(str) {
var hex = "";
for(var i = 0; i < str.length; i++) {
var n = str.charCodeAt(i).toString(16);
hex += n.length < 2 ? '0' + n : n;
}
return hex;
};
/// @returns hex representation (prefixed by 0x) of ascii string
var fromAscii = function(str, pad) {
pad = pad === undefined ? 0 : pad;
var hex = toHex(str);
while (hex.length < pad*2)
hex += "00";
return "0x" + hex;
};
module.exports = {
findIndex: findIndex
findIndex: findIndex,
toAscii: toAscii,
fromAscii: fromAscii
};
@ -1175,6 +1193,8 @@ if ("build" !== 'build') {/*
var BigNumber = require('bignumber.js');
*/}
var utils = require('./utils');
var ETH_UNITS = [
'wei',
'Kwei',
@ -1340,43 +1360,11 @@ var web3 = {
_events: {},
providers: {},
toHex: function(str) {
var hex = "";
for(var i = 0; i < str.length; i++) {
var n = str.charCodeAt(i).toString(16);
hex += n.length < 2 ? '0' + n : n;
}
return hex;
},
/// @returns ascii string representation of hex value prefixed with 0x
toAscii: function(hex) {
// Find termination
var str = "";
var i = 0, l = hex.length;
if (hex.substring(0, 2) === '0x')
i = 2;
for(; i < l; i+=2) {
var code = parseInt(hex.substr(i, 2), 16);
if(code === 0) {
break;
}
str += String.fromCharCode(code);
}
return str;
},
toAscii: utils.toAscii,
/// @returns hex representation (prefixed by 0x) of ascii string
fromAscii: function(str, pad) {
pad = pad === undefined ? 0 : pad;
var hex = this.toHex(str);
while(hex.length < pad*2)
hex += "00";
return "0x" + hex;
},
fromAscii: utils.fromAscii,
/// @returns decimal representaton of hex value prefixed by 0x
toDecimal: function (val) {
@ -1482,7 +1470,7 @@ web3.setProvider = function(provider) {
module.exports = web3;
},{}],"web3":[function(require,module,exports){
},{"./utils":10}],"web3":[function(require,module,exports){
var web3 = require('./lib/web3');
var ProviderManager = require('./lib/providermanager');
web3.provider = new ProviderManager();

10
dist/ethereum.js.map vendored
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File diff suppressed because one or more lines are too long

2
dist/ethereum.min.js vendored
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File diff suppressed because one or more lines are too long

37
lib/abi.js
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@ -37,23 +37,6 @@ var ETH_PADDING = 32;
/// method signature length in bytes
var ETH_METHOD_SIGNATURE_LENGTH = 4;
/// @returns a function that is used as a pattern for 'findIndex'
var findMethodIndex = function (json, methodName) {
return utils.findIndex(json, function (method) {
return method.name === methodName;
});
};
/// @returns method with given method name
var getMethodWithName = function (json, methodName) {
var index = findMethodIndex(json, methodName);
if (index === -1) {
console.error('method ' + methodName + ' not found in the abi');
return undefined;
}
return json[index];
};
/// Filters all function from input abi
/// @returns abi array with filtered objects of type 'function'
var filterFunctions = function (json) {
@ -86,14 +69,11 @@ var dynamicTypeBytes = function (type, value) {
var inputTypes = types.inputTypes();
/// Formats input params to bytes
/// @param contract json abi
/// @param name of the method that we want to use
/// @param abi contract method
/// @param array of params that will be formatted to bytes
/// @returns bytes representation of input params
var toAbiInput = function (json, methodName, params) {
var toAbiInput = function (method, params) {
var bytes = "";
var method = getMethodWithName(json, methodName);
var padding = ETH_PADDING * 2;
/// first we iterate in search for dynamic
@ -134,15 +114,13 @@ var dynamicBytesLength = function (type) {
var outputTypes = types.outputTypes();
/// Formats output bytes back to param list
/// @param contract json abi
/// @param name of the method that we want to use
/// @param contract abi method
/// @param bytes representtion of output
/// @returns array of output params
var fromAbiOutput = function (json, methodName, output) {
var fromAbiOutput = function (method, output) {
output = output.slice(2);
var result = [];
var method = getMethodWithName(json, methodName);
var padding = ETH_PADDING * 2;
var dynamicPartLength = method.outputs.reduce(function (acc, curr) {
@ -194,7 +172,7 @@ var methodDisplayName = function (method) {
/// @returns overloaded part of method's name
var methodTypeName = function (method) {
/// TODO: make it not vulnerable
/// TODO: make it invulnerable
var length = method.indexOf('(');
return length !== -1 ? method.substr(length + 1, method.length - 1 - (length + 1)) : "";
};
@ -210,7 +188,7 @@ var inputParser = function (json) {
var impl = function () {
var params = Array.prototype.slice.call(arguments);
return toAbiInput(json, method.name, params);
return toAbiInput(method, params);
};
if (parser[displayName] === undefined) {
@ -233,7 +211,7 @@ var outputParser = function (json) {
var typeName = methodTypeName(method.name);
var impl = function (output) {
return fromAbiOutput(json, method.name, output);
return fromAbiOutput(method, output);
};
if (parser[displayName] === undefined) {
@ -258,7 +236,6 @@ module.exports = {
methodSignature: methodSignature,
methodDisplayName: methodDisplayName,
methodTypeName: methodTypeName,
getMethodWithName: getMethodWithName,
filterFunctions: filterFunctions,
filterEvents: filterEvents
};

7
lib/formatters.js
View File

@ -24,8 +24,7 @@ if (process.env.NODE_ENV !== 'build') {
var BigNumber = require('bignumber.js'); // jshint ignore:line
}
// TODO: remove web3 dependency from here!
var web3 = require('./web3');
var utils = require('./utils');
BigNumber.config({ ROUNDING_MODE: BigNumber.ROUND_DOWN });
@ -66,7 +65,7 @@ var formatInputInt = function (value) {
/// Formats input value to byte representation of string
/// @returns left-algined byte representation of string
var formatInputString = function (value) {
return web3.fromAscii(value, ETH_PADDING).substr(2);
return utils.fromAscii(value, ETH_PADDING).substr(2);
};
/// Formats input value to byte representation of bool
@ -131,7 +130,7 @@ var formatOutputBool = function (value) {
/// @returns left-aligned input bytes formatted to ascii string
var formatOutputString = function (value) {
return web3.toAscii(value);
return utils.toAscii(value);
};
/// @returns right-aligned input bytes formatted to address

46
lib/utils.js
View File

@ -33,7 +33,49 @@ var findIndex = function (array, callback) {
return end ? i - 1 : -1;
};
module.exports = {
findIndex: findIndex
/// @returns ascii string representation of hex value prefixed with 0x
var toAscii = function(hex) {
// Find termination
var str = "";
var i = 0, l = hex.length;
if (hex.substring(0, 2) === '0x') {
i = 2;
}
for (; i < l; i+=2) {
var code = parseInt(hex.substr(i, 2), 16);
if (code === 0) {
break;
}
str += String.fromCharCode(code);
}
return str;
};
var toHex = function(str) {
var hex = "";
for(var i = 0; i < str.length; i++) {
var n = str.charCodeAt(i).toString(16);
hex += n.length < 2 ? '0' + n : n;
}
return hex;
};
/// @returns hex representation (prefixed by 0x) of ascii string
var fromAscii = function(str, pad) {
pad = pad === undefined ? 0 : pad;
var hex = toHex(str);
while (hex.length < pad*2)
hex += "00";
return "0x" + hex;
};
module.exports = {
findIndex: findIndex,
toAscii: toAscii,
fromAscii: fromAscii
};

38
lib/web3.js
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@ -27,6 +27,8 @@ if (process.env.NODE_ENV !== 'build') {
var BigNumber = require('bignumber.js');
}
var utils = require('./utils');
var ETH_UNITS = [
'wei',
'Kwei',
@ -192,43 +194,11 @@ var web3 = {
_events: {},
providers: {},
toHex: function(str) {
var hex = "";
for(var i = 0; i < str.length; i++) {
var n = str.charCodeAt(i).toString(16);
hex += n.length < 2 ? '0' + n : n;
}
return hex;
},
/// @returns ascii string representation of hex value prefixed with 0x
toAscii: function(hex) {
// Find termination
var str = "";
var i = 0, l = hex.length;
if (hex.substring(0, 2) === '0x')
i = 2;
for(; i < l; i+=2) {
var code = parseInt(hex.substr(i, 2), 16);
if(code === 0) {
break;
}
str += String.fromCharCode(code);
}
return str;
},
toAscii: utils.toAscii,
/// @returns hex representation (prefixed by 0x) of ascii string
fromAscii: function(str, pad) {
pad = pad === undefined ? 0 : pad;
var hex = this.toHex(str);
while(hex.length < pad*2)
hex += "00";
return "0x" + hex;
},
fromAscii: utils.fromAscii,
/// @returns decimal representaton of hex value prefixed by 0x
toDecimal: function (val) {