122 lines
3.2 KiB
JavaScript
122 lines
3.2 KiB
JavaScript
import IpfsApi from 'ipfs-api';
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let __embarkIPFS = {};
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__embarkIPFS.setProvider = function (options) {
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var self = this;
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var promise = new Promise(function (resolve, reject) {
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try {
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if (options === undefined) {
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self.ipfsConnection = IpfsApi('localhost', '5001');
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self._getUrl = "http://localhost:8080/ipfs/";
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} else {
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var ipfsOptions = {host: options.server, protocol: 'http'};
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if (options.protocol) {
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ipfsOptions.protocol = options.protocol;
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}
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if (options.port && options.port !== 'false') {
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ipfsOptions.port = options.port;
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}
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self.ipfsConnection = IpfsApi(ipfsOptions);
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self._getUrl = options.getUrl || "http://localhost:8080/ipfs/";
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}
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resolve(self);
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} catch (err) {
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console.log(err);
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self.ipfsConnection = null;
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reject(new Error('Failed to connect to IPFS'));
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}
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});
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return promise;
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};
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__embarkIPFS.saveText = function (text) {
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const self = this;
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var promise = new Promise(function (resolve, reject) {
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if (!self.ipfsConnection) {
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var connectionError = new Error('No IPFS connection. Please ensure to call Embark.Storage.setProvider()');
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reject(connectionError);
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}
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self.ipfsConnection.add(self.ipfsConnection.Buffer.from(text), function (err, result) {
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if (err) {
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reject(err);
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} else {
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resolve(result[0].path);
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}
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});
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});
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return promise;
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};
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__embarkIPFS.get = function (hash) {
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const self = this;
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// TODO: detect type, then convert if needed
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//var ipfsHash = web3.toAscii(hash);
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var promise = new Promise(function (resolve, reject) {
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if (!self.ipfsConnection) {
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var connectionError = new Error('No IPFS connection. Please ensure to call Embark.Storage.setProvider()');
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reject(connectionError);
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}
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self.ipfsConnection.get(hash, function (err, files) {
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if (err) {
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return reject(err);
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}
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resolve(files[0].content.toString());
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});
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});
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return promise;
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};
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__embarkIPFS.uploadFile = function (inputSelector) {
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const self = this;
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var file = inputSelector[0].files[0];
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if (file === undefined) {
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throw new Error('no file found');
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}
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var promise = new Promise(function (resolve, reject) {
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if (!self.ipfsConnection) {
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var connectionError = new Error('No IPFS connection. Please ensure to call Embark.Storage.setProvider()');
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reject(connectionError);
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}
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var reader = new FileReader();
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reader.onloadend = function () {
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var fileContent = reader.result;
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var buffer = self.ipfsConnection.Buffer.from(fileContent);
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self.ipfsConnection.add(buffer, function (err, result) {
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if (err) {
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reject(err);
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} else {
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resolve(result[0].path);
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}
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});
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};
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reader.readAsArrayBuffer(file);
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});
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return promise;
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};
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__embarkIPFS.isAvailable = function () {
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return new Promise((resolve) => {
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if (!this.ipfsConnection) {
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return resolve(false);
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}
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this.ipfsConnection.id()
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.then((id) => {
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resolve(Boolean(id));
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})
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.catch(() => {
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resolve(false);
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});
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});
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};
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__embarkIPFS.getUrl = function (hash) {
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return (this._getUrl || "http://localhost:8080/ipfs/") + hash;
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};
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