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This file is part of susyweb.js.
susyweb.js is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
susyweb.js is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MSRCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with susyweb.js. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file givenProvider.js
* @author Fabian Vogelsteller <fabian@ethereum.org>
* @date 2017
*/
"use strict";
var givenProvider = null;
// ADD GIVEN PROVIDER
var global = Function('return this')();
// SophonProvider
Eif(typeof global.sophonProvider !== 'undefined') {
givenProvider = global.sophonProvider;
// Legacy susyweb.currentProvider
} else if(typeof global.susyweb !== 'undefined' && global.susyweb.currentProvider) {
if(global.susyweb.currentProvider.sendAsync) {
global.susyweb.currentProvider.send = global.susyweb.currentProvider.sendAsync;
delete global.susyweb.currentProvider.sendAsync;
}
// if connection is 'ipcProviderWrapper', add subscription support
if(!global.susyweb.currentProvider.on &&
global.susyweb.currentProvider.connection &&
global.susyweb.currentProvider.connection.constructor.name === 'ipcProviderWrapper') {
global.susyweb.currentProvider.on = function (type, callback) {
if(typeof callback !== 'function')
throw new Error('The second parameter callback must be a function.');
switch(type){
case 'data':
this.connection.on('data', function(data) {
var result = '';
data = data.toString();
try {
result = JSON.parse(data);
} catch(e) {
return callback(new Error('Couldn\'t parse response data'+ data));
}
// notification
if(!result.id && result.method.indexOf('_subscription') !== -1) {
callback(null, result);
}
});
break;
default:
this.connection.on(type, callback);
break;
}
};
}
givenProvider = global.susyweb.currentProvider;
}
module.exports = givenProvider;
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