98 lines
2.7 KiB
JavaScript
98 lines
2.7 KiB
JavaScript
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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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self.currentStorage = EmbarkJS.Storage.IPFS;
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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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self.ipfsConnection = IpfsApi(options.server, options.port);
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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 (!this.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((new self.ipfsConnection.Buffer(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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// 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.object.get(hash).then(function(node) {
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resolve(node.data.toString());
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}).catch(function(err) {
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reject(err);
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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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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.getUrl = function(hash) {
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return (self._getUrl || "http://localhost:8080/ipfs/") + hash;
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};
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EmbarkJS.Storage.registerProvider('ipfs', __embarkIPFS);
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