embark-area-51/lib/modules/ipfs/embarkjs/storage.js

76 lines
2.0 KiB
JavaScript

/*global __embarkIPFS*/
__embarkIPFS.saveText = function (text) {
const self = this;
var promise = new Promise(function (resolve, reject) {
if (!self._ipfsConnection) {
var connectionError = new Error('No IPFS connection. Please ensure to call Embark.Storage.setProvider()');
reject(connectionError);
}
self._ipfsConnection.add(self._ipfsConnection.Buffer.from(text), function (err, result) {
if (err) {
reject(err);
} else {
resolve(result[0].path);
}
});
});
return promise;
};
__embarkIPFS.get = function (hash) {
const self = this;
// TODO: detect type, then convert if needed
//var ipfsHash = web3.toAscii(hash);
var promise = new Promise(function (resolve, reject) {
if (!self._ipfsConnection) {
var connectionError = new Error('No IPFS connection. Please ensure to call Embark.Storage.setProvider()');
reject(connectionError);
}
self._ipfsConnection.get(hash, function (err, files) {
if (err) {
return reject(err);
}
resolve(files[0].content.toString());
});
});
return promise;
};
__embarkIPFS.uploadFile = function (inputSelector) {
const self = this;
var file = inputSelector[0].files[0];
if (file === undefined) {
throw new Error('no file found');
}
var promise = new Promise(function (resolve, reject) {
if (!self._ipfsConnection) {
var connectionError = new Error('No IPFS connection. Please ensure to call Embark.Storage.setProvider()');
reject(connectionError);
}
var reader = new FileReader();
reader.onloadend = function () {
var fileContent = reader.result;
var buffer = self._ipfsConnection.Buffer.from(fileContent);
self._ipfsConnection.add(buffer, function (err, result) {
if (err) {
reject(err);
} else {
resolve(result[0].path);
}
});
};
reader.readAsArrayBuffer(file);
});
return promise;
};
__embarkIPFS.getUrl = function (hash) {
return (this._getUrl || "http://localhost:8080/ipfs/") + hash;
};