separate components; extract ipfs; add register method

This commit is contained in:
Iuri Matias 2017-12-27 19:10:05 -05:00
parent 174ba8ec9b
commit a568835ceb
5 changed files with 361 additions and 365 deletions

View File

@ -182,19 +182,12 @@ EmbarkJS.Contract.prototype.send = function(value, unit, _options) {
this.web3.eth.sendTransaction(options);
};
//=========================================================
// Embark Storage
//=========================================================
EmbarkJS.Storage = {};
EmbarkJS.Storage.Providers = {
IPFS: 'ipfs',
SWARM: 'swarm'
};
EmbarkJS.Storage.IPFS = {};
EmbarkJS.Storage.saveText = function(text) {
return this.currentStorage.saveText(text);
};
@ -211,119 +204,22 @@ EmbarkJS.Storage.getUrl = function(hash) {
return this.currentStorage.getUrl(hash);
};
EmbarkJS.Storage.registerProvider = function(providerName, obj) {
EmbarkJS.Storage.Providers[providerName] = obj;
};
EmbarkJS.Storage.setProvider = function(provider, options) {
var self = this;
var promise = new Promise(function(resolve, reject) {
if (provider.toLowerCase() === EmbarkJS.Storage.Providers.IPFS) {
//I don't think currentStorage is used anywhere, this might not be needed
//for now until additional storage providers are supported. But keeping it
//anyways
self.currentStorage = EmbarkJS.Storage.IPFS;
let provider = this.Providers[provider];
try {
if (options === undefined) {
self.ipfsConnection = IpfsApi('localhost', '5001');
self._getUrl = "http://localhost:8080/ipfs/";
} else {
self.ipfsConnection = IpfsApi(options.server, options.port);
self._getUrl = options.getUrl || "http://localhost:8080/ipfs/";
}
resolve(self);
} catch (err) {
console.log(err);
self.ipfsConnection = null;
reject(new Error('Failed to connect to IPFS'));
}
} else if (provider.toLowerCase() === EmbarkJS.Storage.SWARM) {
reject('Swarm not implemented');
// TODO Implement Swarm
// this.currentStorage = EmbarkJS.Storage.SWARM;
// if (options === undefined) {
// //Connect to default Swarm node
// } else {
// //Connect using options
// }
} else {
reject('Unknown storage provider');
}
});
return promise;
if (!provider) {
throw new Error('Unknown storage provider');
}
this.currentStorage = provider;
return provider.setProvider(options);
};
EmbarkJS.Storage.IPFS.saveText = function(text) {
var promise = new Promise(function(resolve, reject) {
if (!EmbarkJS.Storage.ipfsConnection) {
var connectionError = new Error('No IPFS connection. Please ensure to call Embark.Storage.setProvider()');
reject(connectionError);
}
EmbarkJS.Storage.ipfsConnection.add((new EmbarkJS.Storage.ipfsConnection.Buffer(text)), function(err, result) {
if (err) {
reject(err);
} else {
resolve(result[0].path);
}
});
});
return promise;
};
EmbarkJS.Storage.IPFS.get = function(hash) {
// TODO: detect type, then convert if needed
//var ipfsHash = web3.toAscii(hash);
var promise = new Promise(function(resolve, reject) {
if (!EmbarkJS.Storage.ipfsConnection) {
var connectionError = new Error('No IPFS connection. Please ensure to call Embark.Storage.setProvider()');
reject(connectionError);
}
EmbarkJS.Storage.ipfsConnection.object.get(hash).then(function(node) {
resolve(node.data.toString());
}).catch(function(err) {
reject(err);
});
});
return promise;
};
EmbarkJS.Storage.IPFS.uploadFile = function(inputSelector) {
var file = inputSelector[0].files[0];
if (file === undefined) {
throw new Error('no file found');
}
var promise = new Promise(function(resolve, reject) {
if (!EmbarkJS.Storage.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 = EmbarkJS.Storage.ipfsConnection.Buffer.from(fileContent);
EmbarkJS.Storage.ipfsConnection.add(buffer, function(err, result) {
if (err) {
reject(err);
} else {
resolve(result[0].path);
}
});
};
reader.readAsArrayBuffer(file);
});
return promise;
};
EmbarkJS.Storage.IPFS.getUrl = function(hash) {
return (self._getUrl || "http://localhost:8080/ipfs/") + hash;
};
//=========================================================
// Embark Messaging
//=========================================================
EmbarkJS.Messages = {};
EmbarkJS.Messages.web3CompatibleWithV5 = function() {
@ -413,255 +309,6 @@ EmbarkJS.Messages.listenTo = function(options) {
return this.currentMessages.listenTo(options);
};
EmbarkJS.Messages.Whisper = {};
EmbarkJS.Messages.Whisper.sendMessage = function(options) {
var topics, data, ttl, priority, payload;
if (EmbarkJS.Messages.isNewWeb3()) {
topics = options.topic || options.topics;
data = options.data || options.payload;
ttl = options.ttl || 100;
priority = options.priority || 1000;
var powTime = options.powTime || 3;
var powTarget = options.powTarget || 0.5;
if (topics === undefined) {
throw new Error("missing option: topic");
}
if (data === undefined) {
throw new Error("missing option: data");
}
topics = this.web3.utils.toHex(topics).slice(0, 10);
payload = JSON.stringify(data);
let message = {
symKeyID: this.symKeyID, // encrypts using the sym key ID
sig: this.sig, // signs the message using the keyPair ID
ttl: ttl,
topic: topics,
payload: EmbarkJS.Utils.fromAscii(payload),
powTime: powTime,
powTarget: powTarget
};
this.web3.shh.post(message, function() { });
} else {
topics = options.topic || options.topics;
data = options.data || options.payload;
ttl = options.ttl || 100;
priority = options.priority || 1000;
var identity = options.identity || this.identity || web3.shh.newIdentity();
var _topics;
if (topics === undefined) {
throw new Error("missing option: topic");
}
if (data === undefined) {
throw new Error("missing option: data");
}
if (typeof topics === 'string') {
_topics = [EmbarkJS.Utils.fromAscii(topics)];
} else {
_topics = topics.map((t) => EmbarkJS.Utils.fromAscii(t));
}
topics = _topics;
payload = JSON.stringify(data);
var message;
message = {
from: identity,
topics: topics,
payload: EmbarkJS.Utils.fromAscii(payload),
ttl: ttl,
priority: priority
};
return EmbarkJS.Messages.currentMessages.web3.shh.post(message, function() { });
}
};
EmbarkJS.Messages.Whisper.listenTo = function(options) {
var topics, _topics, messageEvents;
if (EmbarkJS.Messages.isNewWeb3()) {
messageEvents = function() {
this.cb = function() {};
};
messageEvents.prototype.then = function(cb) {
this.cb = cb;
};
messageEvents.prototype.error = function(err) {
return err;
};
messageEvents.prototype.stop = function() {
this.filter.stopWatching();
};
topics = options.topic || options.topics;
_topics = [];
let promise = new messageEvents();
// listenTo
if (typeof topics === 'string') {
topics = [this.web3.utils.toHex(topics).slice(0, 10)];
} else {
topics = topics.map((t) => this.web3.utils.toHex(t).slice(0, 10));
}
let filter = this.web3.shh.subscribe("messages", {
symKeyID: this.symKeyID,
topics: topics
}).on('data', function(result) {
var payload = JSON.parse(EmbarkJS.Utils.toAscii(result.payload));
var data;
data = {
topic: result.topic,
data: payload,
//from: result.from,
time: result.timestamp
};
promise.cb(payload, data, result);
});
promise.filter = filter;
return promise;
} else {
topics = options.topic || options.topics;
_topics = [];
messageEvents = function() {
this.cb = function() {};
};
messageEvents.prototype.then = function(cb) {
this.cb = cb;
};
messageEvents.prototype.error = function(err) {
return err;
};
messageEvents.prototype.stop = function() {
this.filter.stopWatching();
};
if (typeof topics === 'string') {
_topics = [topics];
} else {
_topics = topics.map((t) => EmbarkJS.Utils.fromAscii(t));
}
topics = _topics;
var filterOptions = {
topics: topics
};
let promise = new messageEvents();
let filter = this.web3.shh.filter(filterOptions, function(err, result) {
var payload = JSON.parse(EmbarkJS.Utils.toAscii(result.payload));
var data;
if (err) {
promise.error(err);
} else {
data = {
topic: topics,
data: payload,
from: result.from,
time: (new Date(result.sent * 1000))
};
promise.cb(payload, data, result);
}
});
promise.filter = filter;
return promise;
}
};
EmbarkJS.Messages.Orbit = {};
EmbarkJS.Messages.Orbit.sendMessage = function(options) {
var topics = options.topic || options.topics;
var data = options.data || options.payload;
if (topics === undefined) {
throw new Error("missing option: topic");
}
if (data === undefined) {
throw new Error("missing option: data");
}
if (typeof topics === 'string') {
topics = topics;
} else {
// TODO: better to just send to different channels instead
topics = topics.join(',');
}
this.orbit.join(topics);
var payload = JSON.stringify(data);
this.orbit.send(topics, data);
};
EmbarkJS.Messages.Orbit.listenTo = function(options) {
var self = this;
var topics = options.topic || options.topics;
if (typeof topics === 'string') {
topics = topics;
} else {
topics = topics.join(',');
}
this.orbit.join(topics);
var messageEvents = function() {
this.cb = function() {};
};
messageEvents.prototype.then = function(cb) {
this.cb = cb;
};
messageEvents.prototype.error = function(err) {
return err;
};
var promise = new messageEvents();
this.orbit.events.on('message', (channel, message) => {
// TODO: looks like sometimes it's receving messages from all topics
if (topics !== channel) return;
self.orbit.getPost(message.payload.value, true).then((post) => {
var data = {
topic: channel,
data: post.content,
from: post.meta.from.name,
time: (new Date(post.meta.ts))
};
promise.cb(post.content, data, post);
});
});
return promise;
};
EmbarkJS.Utils = {
fromAscii: function(str) {
var _web3 = new Web3();

97
js/embarkjs/ipfs.js Normal file
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@ -0,0 +1,97 @@
let __embarkIPFS = {};
__embarkIPFS.setProvider = function(options) {
var self = this;
var promise = new Promise(function(resolve, reject) {
self.currentStorage = EmbarkJS.Storage.IPFS;
try {
if (options === undefined) {
self.ipfsConnection = IpfsApi('localhost', '5001');
self._getUrl = "http://localhost:8080/ipfs/";
} else {
self.ipfsConnection = IpfsApi(options.server, options.port);
self._getUrl = options.getUrl || "http://localhost:8080/ipfs/";
}
resolve(self);
} catch (err) {
console.log(err);
self.ipfsConnection = null;
reject(new Error('Failed to connect to IPFS'));
}
});
return promise;
};
__embarkIPFS.saveText = function(text) {
const self = this;
var promise = new Promise(function(resolve, reject) {
if (!this.ipfsConnection) {
var connectionError = new Error('No IPFS connection. Please ensure to call Embark.Storage.setProvider()');
reject(connectionError);
}
self.ipfsConnection.add((new self.ipfsConnection.Buffer(text)), function(err, result) {
if (err) {
reject(err);
} else {
resolve(result[0].path);
}
});
});
return promise;
};
__embarkIPFS.get = function(hash) {
// 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.object.get(hash).then(function(node) {
resolve(node.data.toString());
}).catch(function(err) {
reject(err);
});
});
return promise;
};
__embarkIPFS.uploadFile = function(inputSelector) {
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 (self._getUrl || "http://localhost:8080/ipfs/") + hash;
};
EmbarkJS.Storage.registerProvider('ipfs', __embarkIPFS);

71
js/embarkjs/orbit.js Normal file
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@ -0,0 +1,71 @@
EmbarkJS.Messages.Orbit = {};
EmbarkJS.Messages.Orbit.sendMessage = function(options) {
var topics = options.topic || options.topics;
var data = options.data || options.payload;
if (topics === undefined) {
throw new Error("missing option: topic");
}
if (data === undefined) {
throw new Error("missing option: data");
}
if (typeof topics === 'string') {
topics = topics;
} else {
// TODO: better to just send to different channels instead
topics = topics.join(',');
}
this.orbit.join(topics);
var payload = JSON.stringify(data);
this.orbit.send(topics, data);
};
EmbarkJS.Messages.Orbit.listenTo = function(options) {
var self = this;
var topics = options.topic || options.topics;
if (typeof topics === 'string') {
topics = topics;
} else {
topics = topics.join(',');
}
this.orbit.join(topics);
var messageEvents = function() {
this.cb = function() {};
};
messageEvents.prototype.then = function(cb) {
this.cb = cb;
};
messageEvents.prototype.error = function(err) {
return err;
};
var promise = new messageEvents();
this.orbit.events.on('message', (channel, message) => {
// TODO: looks like sometimes it's receving messages from all topics
if (topics !== channel) return;
self.orbit.getPost(message.payload.value, true).then((post) => {
var data = {
topic: channel,
data: post.content,
from: post.meta.from.name,
time: (new Date(post.meta.ts))
};
promise.cb(post.content, data, post);
});
});
return promise;
};

177
js/embarkjs/whisper.js Normal file
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@ -0,0 +1,177 @@
EmbarkJS.Messages.Whisper = {};
EmbarkJS.Messages.Whisper.sendMessage = function(options) {
var topics, data, ttl, priority, payload;
if (EmbarkJS.Messages.isNewWeb3()) {
topics = options.topic || options.topics;
data = options.data || options.payload;
ttl = options.ttl || 100;
priority = options.priority || 1000;
var powTime = options.powTime || 3;
var powTarget = options.powTarget || 0.5;
if (topics === undefined) {
throw new Error("missing option: topic");
}
if (data === undefined) {
throw new Error("missing option: data");
}
topics = this.web3.utils.toHex(topics).slice(0, 10);
payload = JSON.stringify(data);
let message = {
symKeyID: this.symKeyID, // encrypts using the sym key ID
sig: this.sig, // signs the message using the keyPair ID
ttl: ttl,
topic: topics,
payload: EmbarkJS.Utils.fromAscii(payload),
powTime: powTime,
powTarget: powTarget
};
this.web3.shh.post(message, function() { });
} else {
topics = options.topic || options.topics;
data = options.data || options.payload;
ttl = options.ttl || 100;
priority = options.priority || 1000;
var identity = options.identity || this.identity || web3.shh.newIdentity();
var _topics;
if (topics === undefined) {
throw new Error("missing option: topic");
}
if (data === undefined) {
throw new Error("missing option: data");
}
if (typeof topics === 'string') {
_topics = [EmbarkJS.Utils.fromAscii(topics)];
} else {
_topics = topics.map((t) => EmbarkJS.Utils.fromAscii(t));
}
topics = _topics;
payload = JSON.stringify(data);
var message;
message = {
from: identity,
topics: topics,
payload: EmbarkJS.Utils.fromAscii(payload),
ttl: ttl,
priority: priority
};
return EmbarkJS.Messages.currentMessages.web3.shh.post(message, function() { });
}
};
EmbarkJS.Messages.Whisper.listenTo = function(options) {
var topics, _topics, messageEvents;
if (EmbarkJS.Messages.isNewWeb3()) {
messageEvents = function() {
this.cb = function() {};
};
messageEvents.prototype.then = function(cb) {
this.cb = cb;
};
messageEvents.prototype.error = function(err) {
return err;
};
messageEvents.prototype.stop = function() {
this.filter.stopWatching();
};
topics = options.topic || options.topics;
_topics = [];
let promise = new messageEvents();
// listenTo
if (typeof topics === 'string') {
topics = [this.web3.utils.toHex(topics).slice(0, 10)];
} else {
topics = topics.map((t) => this.web3.utils.toHex(t).slice(0, 10));
}
let filter = this.web3.shh.subscribe("messages", {
symKeyID: this.symKeyID,
topics: topics
}).on('data', function(result) {
var payload = JSON.parse(EmbarkJS.Utils.toAscii(result.payload));
var data;
data = {
topic: result.topic,
data: payload,
//from: result.from,
time: result.timestamp
};
promise.cb(payload, data, result);
});
promise.filter = filter;
return promise;
} else {
topics = options.topic || options.topics;
_topics = [];
messageEvents = function() {
this.cb = function() {};
};
messageEvents.prototype.then = function(cb) {
this.cb = cb;
};
messageEvents.prototype.error = function(err) {
return err;
};
messageEvents.prototype.stop = function() {
this.filter.stopWatching();
};
if (typeof topics === 'string') {
_topics = [topics];
} else {
_topics = topics.map((t) => EmbarkJS.Utils.fromAscii(t));
}
topics = _topics;
var filterOptions = {
topics: topics
};
let promise = new messageEvents();
let filter = this.web3.shh.filter(filterOptions, function(err, result) {
var payload = JSON.parse(EmbarkJS.Utils.toAscii(result.payload));
var data;
if (err) {
promise.error(err);
} else {
data = {
topic: topics,
data: payload,
from: result.from,
time: (new Date(result.sent * 1000))
};
promise.cb(payload, data, result);
}
});
promise.filter = filter;
return promise;
}
};

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@ -291,6 +291,10 @@ class CodeGenerator {
code += "\n" + embarkjsCode + "\n";
code += "\n" + fs.readFileSync(fs.embarkPath('js/embarkjs/ipfs.js')).toString();
code += "\n" + fs.readFileSync(fs.embarkPath('js/embarkjs/whisper.js')).toString();
code += "\n" + fs.readFileSync(fs.embarkPath('js/embarkjs/orbit.js')).toString();
code += this.generateCommunicationInitialization(true);
code += this.generateStorageInitialization(true);