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verdaccio/lib/st-proxy.js
2013-06-20 17:41:07 +04:00

103 lines
2.3 KiB
JavaScript

var request = require('request');
var through = require('through');
var UError = require('./error').UserError;
var URL = require('url');
function Storage(config, mainconfig) {
if (!(this instanceof Storage)) return new Storage(config);
this.config = config;
this.ua = mainconfig.user_agent;
this.ca;
this.url = URL.parse(this.config.url);
if (this.url.hostname === 'registry.npmjs.org') {
this.ca = require('./npmsslkeys');
// npm registry is too slow working with ssl :(
/*if (this.config._autogenerated) {
// encrypt all the things!
this.url.protocol = 'https';
this.config.url = URL.format(this.url);
}*/
}
this.config.url = this.config.url.replace(/\/$/, '');
return this;
}
Storage.prototype.can_fetch_url = function(url) {
url = URL.parse(url);
return url.protocol === this.url.protocol
&& url.host === this.url.host
&& url.path.indexOf(this.url.path) === 0
}
Storage.prototype.get_package = function(name, callback) {
request({
url: this.config.url + '/' + name,
json: true,
headers: {
'User-Agent': this.ua,
},
ca: this.ca,
}, function(err, res, body) {
if (err) return callback(err);
if (res.statusCode === 404) {
return callback(new UError({
msg: 'package doesn\'t exist on uplink',
status: 404,
}));
}
if (!(res.statusCode >= 200 && res.statusCode < 300)) {
return callback(new Error('bad status code: ' + res.statusCode));
}
callback(null, body);
});
}
Storage.prototype.get_tarball = function(name, filename) {
return this.get_url(this.config.url + '/' + name + '/-/' + filename);
}
Storage.prototype.get_url = function(url) {
var stream = through(function(data) {
this.queue(data);
}, function() {
this.queue(null);
});
var rstream = request({
url: url,
headers: {
'User-Agent': this.ua,
},
ca: this.ca,
encoding: null,
});
rstream.on('response', function(res) {
if (res.statusCode === 404) {
return stream.emit('error', new UError({
msg: 'file doesn\'t exist on uplink',
status: 404,
}));
}
if (!(res.statusCode >= 200 && res.statusCode < 300)) {
return stream.emit('error', new UError({
msg: 'bad uplink status code: ' + res.statusCode,
status: 500,
}));
}
rstream.pipe(stream);
});
rstream.on('error', function(err) {
stream.emit('error', err);
});
return stream;
}
module.exports = Storage;