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73 lines
2.1 KiB
73 lines
2.1 KiB
/*
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This file is part of ethereum.js.
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ethereum.js is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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ethereum.js is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with ethereum.js. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file httpprovider.js
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* @authors:
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* Marek Kotewicz <marek@ethdev.com>
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* Marian Oancea <marian@ethdev.com>
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* Fabian Vogelsteller <fabian@ethdev.com>
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* @date 2014
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*/
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"use strict";
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var XMLHttpRequest = require('xmlhttprequest').XMLHttpRequest; // jshint ignore:line
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var errors = require('./errors');
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var HttpProvider = function (host) {
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this.host = host || 'http://localhost:8545';
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};
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HttpProvider.prototype.send = function (payload) {
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var request = new XMLHttpRequest();
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request.open('POST', this.host, false);
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try {
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request.send(JSON.stringify(payload));
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} catch(error) {
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throw errors.InvalidConnection(this.host);
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}
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// check request.status
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// TODO: throw an error here! it cannot silently fail!!!
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//if (request.status !== 200) {
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//return;
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//}
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return JSON.parse(request.responseText);
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};
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HttpProvider.prototype.sendAsync = function (payload, callback) {
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var request = new XMLHttpRequest();
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request.onreadystatechange = function() {
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if (request.readyState === 4) {
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// TODO: handle the error properly here!!!
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callback(null, JSON.parse(request.responseText));
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}
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};
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request.open('POST', this.host, true);
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try {
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request.send(JSON.stringify(payload));
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} catch(error) {
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callback(errors.InvalidConnection(this.host));
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}
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};
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module.exports = HttpProvider;
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