Merge pull request #5 from embark-framework/separate_concerns
separate embarkjs in to specific classes related to each component
This commit is contained in:
Iuri Matias
GitHub
commit
61664c6dad
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@ -2,8 +2,8 @@ import _EmbarkJS from './embark';
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var EmbarkJS = Object.assign({}, _EmbarkJS);
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EmbarkJS.checkWeb3 = function () {
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_EmbarkJS.checkWeb3.call(this);
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EmbarkJS.Contract.checkWeb3 = function () {
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_EmbarkJS.Contract.checkWeb3.call(this);
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if (!this.web3 && typeof (web3) !== 'undefined') {
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this.web3 = web3;
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} else if (!this.web3) {
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@ -0,0 +1,236 @@
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let isNewWeb3 = function (web3Obj) {
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var _web3 = web3Obj || (new Web3());
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if (typeof(_web3.version) === "string") {
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return true;
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}
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return parseInt(_web3.version.api.split('.')[0], 10) >= 1;
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};
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let Contract = function (options) {
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var self = this;
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var i, abiElement;
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var ContractClass;
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this.abi = options.abi;
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this.address = options.address;
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this.gas = options.gas;
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this.code = '0x' + options.code;
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//this.web3 = options.web3 || web3;
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this.web3 = options.web3;
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this.checkWeb3.call(this);
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if (isNewWeb3(this.web3)) {
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ContractClass = new this.web3.eth.Contract(this.abi, this.address);
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ContractClass.setProvider(this.web3.currentProvider);
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ContractClass.options.data = this.code;
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ContractClass.options.from = this.from || this.web3.eth.defaultAccount;
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ContractClass.abi = ContractClass.options.abi;
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ContractClass.address = this.address;
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ContractClass.gas = this.gas;
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let originalMethods = Object.keys(ContractClass);
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ContractClass._jsonInterface.forEach((abi) => {
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if (originalMethods.indexOf(abi.name) >= 0) {
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console.log(abi.name + " is a reserved word and cannot be used as a contract method, property or event");
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return;
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}
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if (!abi.inputs) {
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return;
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}
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let numExpectedInputs = abi.inputs.length;
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if (abi.type === 'function' && abi.constant) {
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ContractClass[abi.name] = function () {
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let options = {}, cb = null, args = Array.from(arguments || []).slice(0, numExpectedInputs);
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if (typeof (arguments[numExpectedInputs]) === 'function') {
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cb = arguments[numExpectedInputs];
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} else if (typeof (arguments[numExpectedInputs]) === 'object') {
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options = arguments[numExpectedInputs];
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cb = arguments[numExpectedInputs + 1];
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}
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let ref = ContractClass.methods[abi.name];
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let call = ref.apply(ref, ...arguments).call;
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return call.apply(call, []);
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};
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} else if (abi.type === 'function') {
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ContractClass[abi.name] = function () {
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let options = {}, cb = null, args = Array.from(arguments || []).slice(0, numExpectedInputs);
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if (typeof (arguments[numExpectedInputs]) === 'function') {
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cb = arguments[numExpectedInputs];
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} else if (typeof (arguments[numExpectedInputs]) === 'object') {
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options = arguments[numExpectedInputs];
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cb = arguments[numExpectedInputs + 1];
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}
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let ref = ContractClass.methods[abi.name];
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let send = ref.apply(ref, args).send;
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return send.apply(send, [options, cb]);
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};
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} else if (abi.type === 'event') {
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ContractClass[abi.name] = function (options, cb) {
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let ref = ContractClass.events[abi.name];
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return ref.apply(ref, [options, cb]);
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};
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}
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});
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return ContractClass;
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} else {
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ContractClass = this.web3.eth.contract(this.abi);
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this.eventList = [];
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if (this.abi) {
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for (i = 0; i < this.abi.length; i++) {
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abiElement = this.abi[i];
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if (abiElement.type === 'event') {
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this.eventList.push(abiElement.name);
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}
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}
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}
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var messageEvents = function () {
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this.cb = function () {
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};
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};
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messageEvents.prototype.then = function (cb) {
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this.cb = cb;
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};
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messageEvents.prototype.error = function (err) {
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return err;
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};
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this._originalContractObject = ContractClass.at(this.address);
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this._methods = Object.getOwnPropertyNames(this._originalContractObject).filter(function (p) {
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// TODO: check for forbidden properties
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if (self.eventList.indexOf(p) >= 0) {
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self[p] = function () {
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var promise = new messageEvents();
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var args = Array.prototype.slice.call(arguments);
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args.push(function (err, result) {
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if (err) {
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promise.error(err);
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} else {
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promise.cb(result);
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}
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});
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self._originalContractObject[p].apply(self._originalContractObject[p], args);
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return promise;
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};
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return true;
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} else if (typeof self._originalContractObject[p] === 'function') {
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self[p] = function (_args) {
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var args = Array.prototype.slice.call(arguments);
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var fn = self._originalContractObject[p];
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var props = self.abi.find((x) => x.name == p);
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var promise = new Promise(function (resolve, reject) {
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args.push(function (err, transaction) {
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promise.tx = transaction;
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if (err) {
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return reject(err);
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}
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var getConfirmation = function () {
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self.web3.eth.getTransactionReceipt(transaction, function (err, receipt) {
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if (err) {
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return reject(err);
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}
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if (receipt !== null) {
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return resolve(receipt);
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}
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setTimeout(getConfirmation, 1000);
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});
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};
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if (typeof transaction !== "string" || props.constant) {
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resolve(transaction);
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} else {
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getConfirmation();
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}
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});
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fn.apply(fn, args);
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});
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return promise;
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};
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return true;
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}
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return false;
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});
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}
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};
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Contract.checkWeb3 = function () {};
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Contract.prototype.deploy = function (args, _options) {
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var self = this;
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var contractParams;
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var options = _options || {};
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contractParams = args || [];
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contractParams.push({
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from: this.web3.eth.accounts[0],
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data: this.code,
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gas: options.gas || 800000
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});
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var contractObject = this.web3.eth.contract(this.abi);
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var promise = new Promise(function (resolve, reject) {
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contractParams.push(function (err, transaction) {
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if (err) {
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reject(err);
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} else if (transaction.address !== undefined) {
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resolve(new Contract({
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abi: self.abi,
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code: self.code,
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address: transaction.address
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}));
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}
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});
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contractObject["new"].apply(contractObject, contractParams);
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});
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return promise;
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};
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Contract.prototype.new = Contract.prototype.deploy;
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Contract.prototype.at = function (address) {
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return new Contract({abi: this.abi, code: this.code, address: address});
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};
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Contract.prototype.send = function (value, unit, _options) {
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var options, wei;
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if (typeof unit === 'object') {
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options = unit;
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wei = value;
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} else {
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options = _options || {};
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wei = this.web3.toWei(value, unit);
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}
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options.to = this.address;
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options.value = wei;
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this.web3.eth.sendTransaction(options);
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};
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export default Contract;
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436
src/embark.js
436
src/embark.js
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@ -1,4 +1,8 @@
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import {detectSeries} from 'async';
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import Storage from './storage.js';
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import Names from './names.js';
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import Messages from './messages.js';
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import Contract from './contracts.js';
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import Utils from './utils.js';
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var EmbarkJS = {
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onReady: function (cb) {
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@ -9,430 +13,10 @@ var EmbarkJS = {
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}
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};
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EmbarkJS.isNewWeb3 = function (web3Obj) {
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var _web3 = web3Obj || (new Web3());
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if (typeof(_web3.version) === "string") {
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return true;
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}
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return parseInt(_web3.version.api.split('.')[0], 10) >= 1;
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};
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EmbarkJS.checkWeb3 = function () {};
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EmbarkJS.Contract = function (options) {
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var self = this;
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var i, abiElement;
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var ContractClass;
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this.abi = options.abi;
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this.address = options.address;
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this.gas = options.gas;
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this.code = '0x' + options.code;
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//this.web3 = options.web3 || web3;
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this.web3 = options.web3;
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//if (!this.web3 && typeof (web3) !== 'undefined') {
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// this.web3 = web3;
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//} else if (!this.web3) {
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// this.web3 = window.web3;
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//}
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EmbarkJS.checkWeb3.call(this);
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if (EmbarkJS.isNewWeb3(this.web3)) {
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ContractClass = new this.web3.eth.Contract(this.abi, this.address);
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ContractClass.setProvider(this.web3.currentProvider);
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ContractClass.options.data = this.code;
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ContractClass.options.from = this.from || this.web3.eth.defaultAccount;
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ContractClass.abi = ContractClass.options.abi;
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ContractClass.address = this.address;
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ContractClass.gas = this.gas;
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let originalMethods = Object.keys(ContractClass);
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ContractClass._jsonInterface.forEach((abi) => {
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if (originalMethods.indexOf(abi.name) >= 0) {
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console.log(abi.name + " is a reserved word and cannot be used as a contract method, property or event");
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return;
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}
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if (!abi.inputs) {
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return;
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}
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let numExpectedInputs = abi.inputs.length;
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if (abi.type === 'function' && abi.constant) {
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ContractClass[abi.name] = function () {
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let options = {}, cb = null, args = Array.from(arguments || []).slice(0, numExpectedInputs);
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if (typeof (arguments[numExpectedInputs]) === 'function') {
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cb = arguments[numExpectedInputs];
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} else if (typeof (arguments[numExpectedInputs]) === 'object') {
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options = arguments[numExpectedInputs];
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cb = arguments[numExpectedInputs + 1];
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}
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let ref = ContractClass.methods[abi.name];
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let call = ref.apply(ref, ...arguments).call;
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return call.apply(call, []);
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};
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} else if (abi.type === 'function') {
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ContractClass[abi.name] = function () {
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let options = {}, cb = null, args = Array.from(arguments || []).slice(0, numExpectedInputs);
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if (typeof (arguments[numExpectedInputs]) === 'function') {
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cb = arguments[numExpectedInputs];
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} else if (typeof (arguments[numExpectedInputs]) === 'object') {
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options = arguments[numExpectedInputs];
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cb = arguments[numExpectedInputs + 1];
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}
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let ref = ContractClass.methods[abi.name];
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let send = ref.apply(ref, args).send;
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return send.apply(send, [options, cb]);
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};
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} else if (abi.type === 'event') {
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ContractClass[abi.name] = function (options, cb) {
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let ref = ContractClass.events[abi.name];
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return ref.apply(ref, [options, cb]);
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};
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}
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});
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return ContractClass;
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} else {
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ContractClass = this.web3.eth.contract(this.abi);
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this.eventList = [];
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if (this.abi) {
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for (i = 0; i < this.abi.length; i++) {
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abiElement = this.abi[i];
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if (abiElement.type === 'event') {
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this.eventList.push(abiElement.name);
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}
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}
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}
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var messageEvents = function () {
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this.cb = function () {
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};
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};
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messageEvents.prototype.then = function (cb) {
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this.cb = cb;
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};
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messageEvents.prototype.error = function (err) {
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return err;
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};
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this._originalContractObject = ContractClass.at(this.address);
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this._methods = Object.getOwnPropertyNames(this._originalContractObject).filter(function (p) {
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// TODO: check for forbidden properties
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if (self.eventList.indexOf(p) >= 0) {
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self[p] = function () {
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var promise = new messageEvents();
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var args = Array.prototype.slice.call(arguments);
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args.push(function (err, result) {
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if (err) {
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promise.error(err);
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} else {
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promise.cb(result);
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}
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});
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self._originalContractObject[p].apply(self._originalContractObject[p], args);
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return promise;
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};
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return true;
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} else if (typeof self._originalContractObject[p] === 'function') {
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self[p] = function (_args) {
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var args = Array.prototype.slice.call(arguments);
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var fn = self._originalContractObject[p];
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var props = self.abi.find((x) => x.name == p);
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var promise = new Promise(function (resolve, reject) {
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args.push(function (err, transaction) {
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promise.tx = transaction;
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if (err) {
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return reject(err);
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}
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var getConfirmation = function () {
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self.web3.eth.getTransactionReceipt(transaction, function (err, receipt) {
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if (err) {
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return reject(err);
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}
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if (receipt !== null) {
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return resolve(receipt);
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}
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setTimeout(getConfirmation, 1000);
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});
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};
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if (typeof transaction !== "string" || props.constant) {
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resolve(transaction);
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} else {
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getConfirmation();
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}
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});
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fn.apply(fn, args);
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});
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return promise;
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};
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return true;
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}
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return false;
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});
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}
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};
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EmbarkJS.Contract.prototype.deploy = function (args, _options) {
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var self = this;
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var contractParams;
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var options = _options || {};
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contractParams = args || [];
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contractParams.push({
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from: this.web3.eth.accounts[0],
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data: this.code,
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gas: options.gas || 800000
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});
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var contractObject = this.web3.eth.contract(this.abi);
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var promise = new Promise(function (resolve, reject) {
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contractParams.push(function (err, transaction) {
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if (err) {
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reject(err);
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} else if (transaction.address !== undefined) {
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resolve(new EmbarkJS.Contract({
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abi: self.abi,
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code: self.code,
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address: transaction.address
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}));
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}
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});
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// returns promise
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// deploys contract
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// wraps it around EmbarkJS.Contract
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contractObject["new"].apply(contractObject, contractParams);
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});
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return promise;
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};
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EmbarkJS.Contract.prototype.new = EmbarkJS.Contract.prototype.deploy;
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EmbarkJS.Contract.prototype.at = function (address) {
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return new EmbarkJS.Contract({abi: this.abi, code: this.code, address: address});
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};
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EmbarkJS.Contract.prototype.send = function (value, unit, _options) {
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var options, wei;
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if (typeof unit === 'object') {
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options = unit;
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wei = value;
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} else {
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options = _options || {};
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wei = this.web3.toWei(value, unit);
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}
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options.to = this.address;
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options.value = wei;
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this.web3.eth.sendTransaction(options);
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};
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EmbarkJS.Storage = {};
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EmbarkJS.Storage.Providers = {};
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EmbarkJS.Storage.saveText = function (text) {
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if (!this.currentStorage) {
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throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
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}
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return this.currentStorage.saveText(text);
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};
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EmbarkJS.Storage.get = function (hash) {
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if (!this.currentStorage) {
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throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
|
||||
}
|
||||
return this.currentStorage.get(hash);
|
||||
};
|
||||
|
||||
EmbarkJS.Storage.uploadFile = function (inputSelector) {
|
||||
if (!this.currentStorage) {
|
||||
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
|
||||
}
|
||||
return this.currentStorage.uploadFile(inputSelector);
|
||||
};
|
||||
|
||||
EmbarkJS.Storage.getUrl = function (hash) {
|
||||
if (!this.currentStorage) {
|
||||
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
|
||||
}
|
||||
return this.currentStorage.getUrl(hash);
|
||||
};
|
||||
|
||||
EmbarkJS.Storage.registerProvider = function (providerName, obj) {
|
||||
EmbarkJS.Storage.Providers[providerName] = obj;
|
||||
};
|
||||
|
||||
EmbarkJS.Storage.setProvider = function (provider, options) {
|
||||
let providerObj = this.Providers[provider];
|
||||
|
||||
if (!providerObj) {
|
||||
throw new Error('Unknown storage provider');
|
||||
}
|
||||
|
||||
this.currentStorage = providerObj;
|
||||
|
||||
return providerObj.setProvider(options);
|
||||
};
|
||||
|
||||
EmbarkJS.Storage.isAvailable = function () {
|
||||
if (!this.currentStorage) {
|
||||
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
|
||||
}
|
||||
return this.currentStorage.isAvailable();
|
||||
};
|
||||
|
||||
EmbarkJS.Storage.setProviders = async function (dappConnOptions) {
|
||||
try {
|
||||
await detectSeries(dappConnOptions, async (dappConn, callback) => {
|
||||
if(dappConn === '$BZZ' || dappConn.provider === 'swarm'){
|
||||
let options = dappConn;
|
||||
if(dappConn === '$BZZ') options = {"useOnlyGivenProvider": true};
|
||||
try{
|
||||
await EmbarkJS.Storage.setProvider('swarm', options);
|
||||
let isAvailable = await EmbarkJS.Storage.isAvailable();
|
||||
callback(null, isAvailable);
|
||||
}catch(err){
|
||||
callback(null, false); // catch errors for when bzz object not initialised but config has requested it to be used
|
||||
}
|
||||
}
|
||||
else if(dappConn.provider === 'ipfs') {
|
||||
// set the provider then check the connection, if true, use that provider, else, check next provider
|
||||
try{
|
||||
await EmbarkJS.Storage.setProvider('ipfs', dappConn);
|
||||
let isAvailable = await EmbarkJS.Storage.isAvailable();
|
||||
callback(null, isAvailable);
|
||||
} catch(err) {
|
||||
callback(null, false); // catch but keep looping by not passing err to callback
|
||||
}
|
||||
}
|
||||
}, function(err, result){
|
||||
if(!result) throw new Error('Could not connect to a storage provider using any of the dappConnections in the storage config');
|
||||
});
|
||||
} catch (err) {
|
||||
throw new Error('Failed to connect to a storage provider: ' + err.message);
|
||||
}
|
||||
};
|
||||
|
||||
EmbarkJS.Messages = {};
|
||||
|
||||
EmbarkJS.Messages.Providers = {};
|
||||
|
||||
EmbarkJS.Messages.registerProvider = function (providerName, obj) {
|
||||
EmbarkJS.Messages.Providers[providerName] = obj;
|
||||
};
|
||||
|
||||
EmbarkJS.Messages.setProvider = function (provider, options) {
|
||||
let providerObj = this.Providers[provider];
|
||||
|
||||
if (!providerObj) {
|
||||
throw new Error('Unknown messages provider');
|
||||
}
|
||||
|
||||
this.currentMessages = providerObj;
|
||||
|
||||
return providerObj.setProvider(options);
|
||||
};
|
||||
|
||||
EmbarkJS.Messages.isAvailable = function () {
|
||||
return this.currentMessages.isAvailable();
|
||||
};
|
||||
|
||||
EmbarkJS.Messages.sendMessage = function (options) {
|
||||
if (!this.currentMessages) {
|
||||
throw new Error('Messages provider not set; e.g EmbarkJS.Messages.setProvider("whisper")');
|
||||
}
|
||||
return this.currentMessages.sendMessage(options);
|
||||
};
|
||||
|
||||
EmbarkJS.Messages.listenTo = function (options, callback) {
|
||||
if (!this.currentMessages) {
|
||||
throw new Error('Messages provider not set; e.g EmbarkJS.Messages.setProvider("whisper")');
|
||||
}
|
||||
return this.currentMessages.listenTo(options, callback);
|
||||
};
|
||||
|
||||
EmbarkJS.Names = {};
|
||||
|
||||
EmbarkJS.Names.Providers = {};
|
||||
|
||||
EmbarkJS.Names.registerProvider = function (providerName, obj) {
|
||||
EmbarkJS.Names.Providers[providerName] = obj;
|
||||
};
|
||||
|
||||
EmbarkJS.Names.setProvider = function (provider, options) {
|
||||
let providerObj = this.Providers[provider];
|
||||
|
||||
if (!providerObj) {
|
||||
throw new Error('Unknown name system provider');
|
||||
}
|
||||
|
||||
this.currentNameSystems = providerObj;
|
||||
|
||||
return providerObj.setProvider(options);
|
||||
};
|
||||
|
||||
// resolve resolves a name into an identifier of some kind
|
||||
EmbarkJS.Names.resolve = function (name) {
|
||||
if (!this.currentNameSystems) {
|
||||
throw new Error('Name system provider not set; e.g EmbarkJS.Names.setProvider("ens")');
|
||||
}
|
||||
return this.currentNameSystems.resolve(name);
|
||||
};
|
||||
|
||||
// the reverse of resolve, resolves using an identifier to get to a name
|
||||
EmbarkJS.Names.lookup = function (identifier) {
|
||||
if (!this.currentNameSystems) {
|
||||
throw new Error('Name system provider not set; e.g EmbarkJS.Names.setProvider("ens")');
|
||||
}
|
||||
return this.currentNameSystems.lookup(identifier);
|
||||
};
|
||||
|
||||
// To Implement
|
||||
|
||||
|
||||
// register a name
|
||||
EmbarkJS.Names.register = function(name, options) {
|
||||
if (!this.currentNameSystems) {
|
||||
throw new Error('Name system provider not set; e.g EmbarkJS.Names.setProvider("ens")');
|
||||
}
|
||||
return this.currentNameSystems.register(name, options);
|
||||
};
|
||||
|
||||
EmbarkJS.Utils = {
|
||||
fromAscii: function (str) {
|
||||
var _web3 = new Web3();
|
||||
return _web3.utils ? _web3.utils.fromAscii(str) : _web3.fromAscii(str);
|
||||
},
|
||||
toAscii: function (str) {
|
||||
var _web3 = new Web3();
|
||||
return _web3.utils.toAscii(str);
|
||||
}
|
||||
};
|
||||
EmbarkJS.Contract = Contract;
|
||||
EmbarkJS.Storage = Storage;
|
||||
EmbarkJS.Names = Names;
|
||||
EmbarkJS.Messages = Messages;
|
||||
EmbarkJS.Utils = Utils;
|
||||
|
||||
export default EmbarkJS;
|
||||
|
|
|
|||
|
|
@ -0,0 +1,39 @@
|
|||
let Messages = {};
|
||||
|
||||
Messages.Providers = {};
|
||||
|
||||
Messages.registerProvider = function (providerName, obj) {
|
||||
this.Providers[providerName] = obj;
|
||||
};
|
||||
|
||||
Messages.setProvider = function (provider, options) {
|
||||
let providerObj = this.Providers[provider];
|
||||
|
||||
if (!providerObj) {
|
||||
throw new Error('Unknown messages provider');
|
||||
}
|
||||
|
||||
this.currentMessages = providerObj;
|
||||
|
||||
return providerObj.setProvider(options);
|
||||
};
|
||||
|
||||
Messages.isAvailable = function () {
|
||||
return this.currentMessages.isAvailable();
|
||||
};
|
||||
|
||||
Messages.sendMessage = function (options) {
|
||||
if (!this.currentMessages) {
|
||||
throw new Error('Messages provider not set; e.g EmbarkJS.Messages.setProvider("whisper")');
|
||||
}
|
||||
return this.currentMessages.sendMessage(options);
|
||||
};
|
||||
|
||||
Messages.listenTo = function (options, callback) {
|
||||
if (!this.currentMessages) {
|
||||
throw new Error('Messages provider not set; e.g EmbarkJS.Messages.setProvider("whisper")');
|
||||
}
|
||||
return this.currentMessages.listenTo(options, callback);
|
||||
};
|
||||
|
||||
export default Messages;
|
||||
|
|
@ -0,0 +1,45 @@
|
|||
let Names = {};
|
||||
|
||||
Names.Providers = {};
|
||||
|
||||
Names.registerProvider = function (providerName, obj) {
|
||||
Names.Providers[providerName] = obj;
|
||||
};
|
||||
|
||||
Names.setProvider = function (provider, options) {
|
||||
let providerObj = this.Providers[provider];
|
||||
|
||||
if (!providerObj) {
|
||||
throw new Error('Unknown name system provider');
|
||||
}
|
||||
|
||||
this.currentNameSystems = providerObj;
|
||||
|
||||
return providerObj.setProvider(options);
|
||||
};
|
||||
|
||||
// resolve resolves a name into an identifier of some kind
|
||||
Names.resolve = function (name) {
|
||||
if (!this.currentNameSystems) {
|
||||
throw new Error('Name system provider not set; e.g EmbarkJS.Names.setProvider("ens")');
|
||||
}
|
||||
return this.currentNameSystems.resolve(name);
|
||||
};
|
||||
|
||||
// the reverse of resolve, resolves using an identifier to get to a name
|
||||
Names.lookup = function (identifier) {
|
||||
if (!this.currentNameSystems) {
|
||||
throw new Error('Name system provider not set; e.g EmbarkJS.Names.setProvider("ens")');
|
||||
}
|
||||
return this.currentNameSystems.lookup(identifier);
|
||||
};
|
||||
|
||||
// register a name
|
||||
Names.register = function(name, options) {
|
||||
if (!this.currentNameSystems) {
|
||||
throw new Error('Name system provider not set; e.g EmbarkJS.Names.setProvider("ens")');
|
||||
}
|
||||
return this.currentNameSystems.register(name, options);
|
||||
};
|
||||
|
||||
export default Names;
|
||||
|
|
@ -0,0 +1,92 @@
|
|||
import {detectSeries} from 'async';
|
||||
|
||||
const Storage = {};
|
||||
|
||||
Storage.Providers = {};
|
||||
|
||||
Storage.saveText = function (text) {
|
||||
if (!this.currentStorage) {
|
||||
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
|
||||
}
|
||||
return this.currentStorage.saveText(text);
|
||||
};
|
||||
|
||||
Storage.get = function (hash) {
|
||||
if (!this.currentStorage) {
|
||||
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
|
||||
}
|
||||
return this.currentStorage.get(hash);
|
||||
};
|
||||
|
||||
Storage.uploadFile = function (inputSelector) {
|
||||
if (!this.currentStorage) {
|
||||
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
|
||||
}
|
||||
return this.currentStorage.uploadFile(inputSelector);
|
||||
};
|
||||
|
||||
Storage.getUrl = function (hash) {
|
||||
if (!this.currentStorage) {
|
||||
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
|
||||
}
|
||||
return this.currentStorage.getUrl(hash);
|
||||
};
|
||||
|
||||
Storage.registerProvider = function (providerName, obj) {
|
||||
this.Providers[providerName] = obj;
|
||||
};
|
||||
|
||||
Storage.setProvider = function (provider, options) {
|
||||
let providerObj = this.Providers[provider];
|
||||
|
||||
if (!providerObj) {
|
||||
throw new Error('Unknown storage provider');
|
||||
}
|
||||
|
||||
this.currentStorage = providerObj;
|
||||
|
||||
return providerObj.setProvider(options);
|
||||
};
|
||||
|
||||
Storage.isAvailable = function () {
|
||||
if (!this.currentStorage) {
|
||||
throw new Error('Storage provider not set; e.g EmbarkJS.Storage.setProvider("ipfs")');
|
||||
}
|
||||
return this.currentStorage.isAvailable();
|
||||
};
|
||||
|
||||
// TODO: most of this logic should move to the provider implementations themselves
|
||||
Storage.setProviders = async function (dappConnOptions) {
|
||||
const self = this;
|
||||
try {
|
||||
await detectSeries(dappConnOptions, async (dappConn, callback) => {
|
||||
if(dappConn === '$BZZ' || dappConn.provider === 'swarm'){
|
||||
let options = dappConn;
|
||||
if(dappConn === '$BZZ') options = {"useOnlyGivenProvider": true};
|
||||
try{
|
||||
await self.setProvider('swarm', options);
|
||||
let isAvailable = await self.isAvailable();
|
||||
callback(null, isAvailable);
|
||||
}catch(err){
|
||||
callback(null, false); // catch errors for when bzz object not initialised but config has requested it to be used
|
||||
}
|
||||
}
|
||||
else if(dappConn.provider === 'ipfs') {
|
||||
// set the provider then check the connection, if true, use that provider, else, check next provider
|
||||
try{
|
||||
await self.setProvider('ipfs', dappConn);
|
||||
let isAvailable = await self.isAvailable();
|
||||
callback(null, isAvailable);
|
||||
} catch(err) {
|
||||
callback(null, false); // catch but keep looping by not passing err to callback
|
||||
}
|
||||
}
|
||||
}, function(err, result){
|
||||
if(!result) throw new Error('Could not connect to a storage provider using any of the dappConnections in the storage config');
|
||||
});
|
||||
} catch (err) {
|
||||
throw new Error('Failed to connect to a storage provider: ' + err.message);
|
||||
}
|
||||
};
|
||||
|
||||
export default Storage;
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
let Utils = {
|
||||
fromAscii: function (str) {
|
||||
var _web3 = new Web3();
|
||||
return _web3.utils ? _web3.utils.fromAscii(str) : _web3.fromAscii(str);
|
||||
},
|
||||
toAscii: function (str) {
|
||||
var _web3 = new Web3();
|
||||
return _web3.utils.toAscii(str);
|
||||
}
|
||||
};
|
||||
|
||||
export default Utils;
|
||||
|
|
@ -12,6 +12,9 @@ const standalone = {
|
|||
loader: 'babel-loader',
|
||||
options: {
|
||||
babelrc: false,
|
||||
plugins: [
|
||||
"@babel/plugin-transform-runtime"
|
||||
],
|
||||
presets: [
|
||||
['@babel/env']
|
||||
]
|
||||
|
|
|
|||
Loading…
Reference in New Issue