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verdaccio/lib/index.js
2014-09-25 07:56:31 +04:00

435 lines
12 KiB
JavaScript

var express = require('express')
, cookies = require('cookies')
, utils = require('./utils')
, Storage = require('./storage')
, Config = require('./config')
, Error = require('http-errors')
, Middleware = require('./middleware')
, Logger = require('./logger')
, Cats = require('./status-cats')
, validate_name = Middleware.validate_name
, media = Middleware.media
, expect_json = Middleware.expect_json
, fs = require('fs')
, Auth = require('./auth')
function match(regexp) {
return function(req, res, next, value, name) {
if (regexp.exec(value)) {
next()
} else {
next('route')
}
}
}
module.exports = function(config_hash) {
var config = new Config(config_hash)
, storage = new Storage(config)
, auth = new Auth(config)
var can = function(action) {
return function(req, res, next) {
if (config['allow_'+action](req.params.package, req.remote_user)) {
next()
} else {
if (!req.remote_user.name) {
if (req.remote_user.error) {
var message = "can't "+action+' restricted package, ' + req.remote_user.error
} else {
var message = "can't "+action+" restricted package without auth, did you forget 'npm set always-auth true'?"
}
next(Error[403](message))
} else {
next(Error[403]('user ' + req.remote_user.name
+ ' not allowed to ' + action + ' it'))
}
}
}
}
var app = express()
// run in production mode by default, just in case
// it shouldn't make any difference anyway
app.set('env', process.env.NODE_ENV || 'production')
function error_reporting_middleware(req, res, next) {
res.report_error = res.report_error || function(err) {
if (err.status && err.status >= 400 && err.status < 600) {
if (!res.headersSent) {
res.status(err.status)
res.send({error: err.message || 'unknown error'})
}
} else {
Logger.logger.error({err: err}, 'unexpected error: @{!err.message}\n@{err.stack}')
if (!res.status || !res.send) {
Logger.logger.error('this is an error in express.js, please report this')
res.destroy()
} else if (!res.headersSent) {
res.status(500)
res.send({error: 'internal server error'})
} else {
// socket should be already closed
}
}
}
next()
}
app.use(error_reporting_middleware)
app.use(Middleware.log_and_etagify)
app.use(function(req, res, next) {
res.setHeader('X-Powered-By', config.user_agent)
next()
})
app.use(Cats.middleware)
app.use(auth.middleware())
app.use(express.json({strict: false, limit: config.max_body_size || '10mb'}))
app.use(express.compress())
app.use(Middleware.anti_loop(config))
// validate all of these params as a package name
// this might be too harsh, so ask if it causes trouble
app.param('package', validate_name)
app.param('filename', validate_name)
app.param('tag', validate_name)
app.param('version', validate_name)
app.param('revision', validate_name)
// these can't be safely put into express url for some reason
app.param('_rev', match(/^-rev$/))
app.param('org_couchdb_user', match(/^org\.couchdb\.user:/))
app.param('anything', match(/.*/))
/* app.get('/-/all', function(req, res) {
var https = require('https')
var JSONStream = require('JSONStream')
var request = require('request')({
url: 'https://registry.npmjs.org/-/all',
})
.pipe(JSONStream.parse('*'))
.on('data', function(d) {
console.log(d)
})
})*/
// TODO: anonymous user?
app.get('/:package/:version?', can('access'), function(req, res, next) {
storage.get_package(req.params.package, {req: req}, function(err, info) {
if (err) return next(err)
info = utils.filter_tarball_urls(info, req, config)
var version = req.params.version
, t
if (!version) {
return res.send(info)
}
if ((t = utils.get_version(info, version)) != null) {
return res.send(t)
}
if (info['dist-tags'] != null) {
if (info['dist-tags'][version] != null) {
version = info['dist-tags'][version]
if ((t = utils.get_version(info, version)) != null) {
return res.send(t)
}
}
}
return next(Error[404]('version not found: ' + req.params.version))
})
})
app.get('/:package/-/:filename', can('access'), function(req, res, next) {
var stream = storage.get_tarball(req.params.package, req.params.filename)
stream.on('content-length', function(v) {
res.header('Content-Length', v)
})
stream.on('error', function(err) {
return res.report_error(err)
})
res.header('Content-Type', 'application/octet-stream')
stream.pipe(res)
})
// searching packages
app.get('/-/all/:anything?', function(req, res, next) {
storage.search(req.param.startkey || 0, {req: req}, function(err, result) {
if (err) return next(err)
for (var pkg in result) {
if (!config.allow_access(pkg, req.remote_user)) {
delete result[pkg]
}
}
return res.send(result)
})
})
//app.get('/*', function(req, res) {
// proxy.request(req, res)
//})
// placeholder 'cause npm require to be authenticated to publish
// we do not do any real authentication yet
app.post('/_session', cookies.express(), function(req, res) {
res.cookies.set('AuthSession', String(Math.random()), {
// npmjs.org sets 10h expire
expires: new Date(Date.now() + 10*60*60*1000)
})
res.send({'ok':true,'name':'somebody','roles':[]})
})
app.get('/-/user/:org_couchdb_user', function(req, res, next) {
res.status(200)
return res.send({
ok: 'you are authenticated as "' + req.remote_user.name + '"',
})
})
app.put('/-/user/:org_couchdb_user/:_rev?/:revision?', function(req, res, next) {
if (req.remote_user.name != null) {
res.status(201)
return res.send({
ok: 'you are authenticated as "' + req.remote_user.name + '"',
})
} else {
if (typeof(req.body.name) !== 'string' || typeof(req.body.password) !== 'string') {
return next(Error[400]('user/password is not found in request (npm issue?)'))
}
auth.add_user(req.body.name, req.body.password, function(err) {
if (err) {
if (err.status < 500 && err.message === 'this user already exists') {
// with npm registering is the same as logging in
// so we replace message in case of conflict
return next(Error[409]('bad username/password, access denied'))
}
return next(err)
}
res.status(201)
return res.send({
ok: 'user "' + req.body.name + '" created',
})
})
}
})
// tagging a package
app.put('/:package/:tag', can('publish'), media('application/json'), function(req, res, next) {
if (typeof(req.body) !== 'string') return next('route')
var tags = {}
tags[req.params.tag] = req.body
storage.add_tags(req.params.package, tags, function(err) {
if (err) return next(err)
res.status(201)
return res.send({
ok: 'package tagged'
})
})
})
// publishing a package
app.put('/:package/:_rev?/:revision?', can('publish'), media('application/json'), expect_json, function(req, res, next) {
var name = req.params.package
if (Object.keys(req.body).length == 1 && utils.is_object(req.body.users)) {
// 501 status is more meaningful, but npm doesn't show error message for 5xx
return next(Error[404]('npm star|unstar calls are not implemented'))
}
try {
var metadata = utils.validate_metadata(req.body, name)
} catch(err) {
return next(Error[422]('bad incoming package data'))
}
if (req.params._rev) {
storage.change_package(name, metadata, req.params.revision, function(err) {
after_change(err, 'package changed')
})
} else {
storage.add_package(name, metadata, function(err) {
after_change(err, 'created new package')
})
}
function after_change(err, ok_message) {
// old npm behaviour
if (metadata._attachments == null) {
if (err) return next(err)
res.status(201)
return res.send({
ok: ok_message
})
}
// npm-registry-client 0.3+ embeds tarball into the json upload
// https://github.com/isaacs/npm-registry-client/commit/e9fbeb8b67f249394f735c74ef11fe4720d46ca0
// issue #31, dealing with it here:
if (typeof(metadata._attachments) != 'object'
|| Object.keys(metadata._attachments).length != 1
|| typeof(metadata.versions) != 'object'
|| Object.keys(metadata.versions).length != 1) {
// npm is doing something strange again
// if this happens in normal circumstances, report it as a bug
return next(Error[400]('unsupported registry call'))
}
if (err && err.status != 409) return next(err)
// at this point document is either created or existed before
var t1 = Object.keys(metadata._attachments)[0]
create_tarball(t1, metadata._attachments[t1], function(err) {
if (err) return next(err)
var t2 = Object.keys(metadata.versions)[0]
metadata.versions[t2].readme = metadata.readme != null ? String(metadata.readme) : ''
create_version(t2, metadata.versions[t2], function(err) {
if (err) return next(err)
add_tags(metadata['dist-tags'], function(err) {
if (err) return next(err)
res.status(201)
return res.send({
ok: ok_message
})
})
})
})
}
function create_tarball(filename, data, cb) {
var stream = storage.add_tarball(name, filename)
stream.on('error', function(err) {
cb(err)
})
stream.on('success', function() {
cb()
})
// this is dumb and memory-consuming, but what choices do we have?
stream.end(new Buffer(data.data, 'base64'))
stream.done()
}
function create_version(version, data, cb) {
storage.add_version(name, version, data, null, cb)
}
function add_tags(tags, cb) {
storage.add_tags(name, tags, cb)
}
})
// unpublishing an entire package
app.delete('/:package/-rev/*', can('publish'), function(req, res, next) {
storage.remove_package(req.params.package, function(err) {
if (err) return next(err)
res.status(201)
return res.send({
ok: 'package removed'
})
})
})
// removing a tarball
app.delete('/:package/-/:filename/-rev/:revision', can('publish'), function(req, res, next) {
storage.remove_tarball(req.params.package, req.params.filename, req.params.revision, function(err) {
if (err) return next(err)
res.status(201)
return res.send({
ok: 'tarball removed'
})
})
})
// uploading package tarball
app.put('/:package/-/:filename/*', can('publish'), media('application/octet-stream'), function(req, res, next) {
var name = req.params.package
var stream = storage.add_tarball(name, req.params.filename)
req.pipe(stream)
// checking if end event came before closing
var complete = false
req.on('end', function() {
complete = true
stream.done()
})
req.on('close', function() {
if (!complete) {
stream.abort()
}
})
stream.on('error', function(err) {
return res.report_error(err)
})
stream.on('success', function() {
res.status(201)
return res.send({
ok: 'tarball uploaded successfully'
})
})
})
// adding a version
app.put('/:package/:version/-tag/:tag', can('publish'), media('application/json'), expect_json, function(req, res, next) {
var name = req.params.package
, version = req.params.version
, tag = req.params.tag
storage.add_version(name, version, req.body, tag, function(err) {
if (err) return next(err)
res.status(201)
return res.send({
ok: 'package published'
})
})
})
// hook for tests only
if (config._debug) {
app.get('/-/_debug', function(req, res) {
var do_gc = typeof(global.gc) !== 'undefined'
if (do_gc) global.gc()
res.send({
pid: process.pid,
main: process.mainModule.filename,
conf: config.self_path,
mem: process.memoryUsage(),
gc: do_gc,
})
})
}
app.use(app.router)
app.use(function(err, req, res, next) {
if (typeof(res.report_error) !== 'function') {
// in case of very early error this middleware may not be loaded before error is generated
// fixing that
error_reporting_middleware(req, res, function(){})
}
res.report_error(err)
})
if (config.web && config.web.enable) {
require('./index-web')(app, config, storage)
} else {
app.get('/', function(req, res) {
res.send('Web interface is a work-in-progress right now, '
+ 'so it is disabled by default. If you want to play with it, '
+ 'you can enable it in the config file.')
})
}
return app
}