/*global Y: false, Buffer: false, clearInterval: false, clearTimeout: false, console: false, exports: false, global: false, module: false, process: false, querystring: false, require: false, setInterval: false, setTimeout: false, __filename: false, __dirname: false */
/**
* Node.js override for IO, methods are mixed into `Y.IO`
* @module io-nodejs
* @main io-nodejs
*/
/**
* Passthru to the NodeJS <a href="https://github.com/mikeal/request">request</a> module.
* This method is return of `require('request')` so you can use it inside NodeJS without
* the IO abstraction.
* @method request
* @static
* @for IO
*/
if (!Y.IO.request) {
// Default Request's cookie jar to `false`. This way cookies will not be
// maintained across requests.
Y.IO.request = require('request').defaults({jar: false});
}
var codes = require('http').STATUS_CODES;
/**
Flatten headers object
@method flatten
@protected
@for IO
@param {Object} o The headers object
@return {String} The flattened headers object
*/
var flatten = function(o) {
var str = [];
Object.keys(o).forEach(function(name) {
str.push(name + ': ' + o[name]);
});
return str.join('\n');
};
Y.log('Loading NodeJS Request Transport', 'info', 'io');
/**
NodeJS IO transport, uses the NodeJS <a href="https://github.com/mikeal/request">request</a>
module under the hood to perform all network IO.
@method transports.nodejs
@for IO
@static
@return {Object} This object contains only a `send` method that accepts a
`transaction object`, `uri` and the `config object`.
@example
Y.io('https://somedomain.com/url', {
method: 'PUT',
data: '?foo=bar',
//Extra request module config options.
request: {
maxRedirects: 100,
strictSSL: true,
multipart: [
{
'content-type': 'application/json',
body: JSON.stringify({
foo: 'bar',
_attachments: {
'message.txt': {
follows: true,
length: 18,
'content_type': 'text/plain'
}
}
})
},
{
body: 'I am an attachment'
}
]
},
on: {
success: function(id, e) {
Y.log(e.responseText);
}
}
});
*/
Y.IO.transports.nodejs = function() {
return {
send: function (transaction, uri, config) {
Y.log('Starting Request Transaction', 'info', 'io');
config.notify('start', transaction, config);
config.method = config.method || 'GET';
config.method = config.method.toUpperCase();
var rconf = {
method: config.method,
uri: uri
};
if (config.data) {
if (Y.Lang.isString(config.data)) {
rconf.body = config.data;
}
if (rconf.body && rconf.method === 'GET') {
rconf.uri += (rconf.uri.indexOf('?') > -1 ? '&' : '?') + rconf.body;
rconf.body = '';
}
}
if (config.headers) {
rconf.headers = config.headers;
}
if (config.timeout) {
rconf.timeout = config.timeout;
}
if (config.request) {
Y.mix(rconf, config.request);
}
Y.log('Initiating ' + rconf.method + ' request to: ' + rconf.uri, 'info', 'io');
Y.IO.request(rconf, function(err, data) {
Y.log('Request Transaction Complete', 'info', 'io');
if (err) {
Y.log('An IO error occurred', 'warn', 'io');
transaction.c = err;
config.notify(((err.code === 'ETIMEDOUT') ? 'timeout' : 'failure'), transaction, config);
return;
}
if (data) {
transaction.c = {
status: data.statusCode,
statusCode: data.statusCode,
statusText: codes[data.statusCode],
headers: data.headers,
responseText: data.body || '',
responseXML: null,
getResponseHeader: function(name) {
return this.headers[name];
},
getAllResponseHeaders: function() {
return flatten(this.headers);
}
};
}
Y.log('Request Transaction Complete', 'info', 'io');
config.notify('complete', transaction, config);
config.notify(((data && (data.statusCode >= 200 && data.statusCode <= 299)) ? 'success' : 'failure'), transaction, config);
});
var ret = {
io: transaction
};
return ret;
}
};
};
Y.IO.defaultTransport('nodejs');