67 lines
1.9 KiB
JavaScript
67 lines
1.9 KiB
JavaScript
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'use strict';
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var net = require('net');
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var JsonRpcProvider = require('./json-rpc-provider');
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var defineProperty = require('../utils/properties').defineProperty;
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var errors = require('../utils/errors');
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function IpcProvider(path, network) {
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errors.checkNew(this, IpcProvider);
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if (path == null) {
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errors.throwError('missing path', errors.MISSING_ARGUMENT, { arg: 'path' });
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}
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if (network == null) { network = 'homestead'; }
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JsonRpcProvider.call(this, 'ipc://' + path, network);
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defineProperty(this, 'path', path);
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}
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JsonRpcProvider.inherits(IpcProvider);
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// @TODO: Create a connection to the IPC path and use filters instead of polling for block
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defineProperty(IpcProvider.prototype, 'send', function(method, params) {
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// This method is very simple right now. We create a new socket
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// connection each time, which may be slower, but the main
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// advantage we are aiming for now is security. This simplifies
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// multiplexing requests (since we do not need to multiplex).
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var payload = JSON.stringify({
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method: method,
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params: params,
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id: 42,
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jsonrpc: "2.0"
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});
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var self = this;
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return new Promise(function(resolve, reject) {
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var stream = net.connect(self.path);
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stream.on('data', function(data) {
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try {
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resolve(JSON.parse(data.toString('utf8')).result);
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// @TODO: Better pull apart the error
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stream.destroy();
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} catch (error) {
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reject(error);
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stream.destroy();
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}
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});
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stream.on('end', function() {
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stream.destroy();
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});
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stream.on('error', function(error) {
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reject(error);
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stream.destroy();
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});
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stream.write(payload);
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stream.end();
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});
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});
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module.exports = IpcProvider;
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