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module.exports = exports = install
module.exports.test = { download: download, readCAFile: readCAFile }
exports.usage = 'Install node development files for the specified node version.'
/**
* Module dependencies.
*/
var fs = require('graceful-fs')
, osenv = require('osenv')
, tar = require('tar')
, rm = require('rimraf')
, path = require('path')
, crypto = require('crypto')
, zlib = require('zlib')
, log = require('npmlog')
, semver = require('semver')
, fstream = require('fstream')
, request = require('request')
, minimatch = require('minimatch')
, mkdir = require('mkdirp')
, processRelease = require('./process-release')
, win = process.platform == 'win32'
function install (gyp, argv, callback) {
var release = processRelease(argv, gyp, process.version, process.release)
// ensure no double-callbacks happen
function cb (err) {
if (cb.done) return
cb.done = true
if (err) {
log.warn('install', 'got an error, rolling back install')
// roll-back the install if anything went wrong
gyp.commands.remove([ release.versionDir ], function (err2) {
callback(err)
})
} else {
callback(null, release.version)
}
}
// Determine which node dev files version we are installing
log.verbose('install', 'input version string %j', release.version)
if (!release.semver) {
// could not parse the version string with semver
return callback(new Error('Invalid version number: ' + release.version))
}
if (semver.lt(release.version, '0.8.0')) {
return callback(new Error('Minimum target version is `0.8.0` or greater. Got: ' + release.version))
}
// 0.x.y-pre versions are not published yet and cannot be installed. Bail.
if (release.semver.prerelease[0] === 'pre') {
log.verbose('detected "pre" node version', release.version)
if (gyp.opts.nodedir) {
log.verbose('--nodedir flag was passed; skipping install', gyp.opts.nodedir)
callback()
} else {
callback(new Error('"pre" versions of node cannot be installed, use the --nodedir flag instead'))
}
return
}
// flatten version into String
log.verbose('install', 'installing version: %s', release.versionDir)
// the directory where the dev files will be installed
var devDir = path.resolve(gyp.devDir, release.versionDir)
// If '--ensure' was passed, then don't *always* install the version;
// check if it is already installed, and only install when needed
if (gyp.opts.ensure) {
log.verbose('install', '--ensure was passed, so won\'t reinstall if already installed')
fs.stat(devDir, function (err, stat) {
if (err) {
if (err.code == 'ENOENT') {
log.verbose('install', 'version not already installed, continuing with install', release.version)
go()
} else if (err.code == 'EACCES') {
eaccesFallback()
} else {
cb(err)
}
return
}
log.verbose('install', 'version is already installed, need to check "installVersion"')
var installVersionFile = path.resolve(devDir, 'installVersion')
fs.readFile(installVersionFile, 'ascii', function (err, ver) {
if (err && err.code != 'ENOENT') {
return cb(err)
}
var installVersion = parseInt(ver, 10) || 0
log.verbose('got "installVersion"', installVersion)
log.verbose('needs "installVersion"', gyp.package.installVersion)
if (installVersion < gyp.package.installVersion) {
log.verbose('install', 'version is no good; reinstalling')
go()
} else {
log.verbose('install', 'version is good')
cb()
}
})
})
} else {
go()
}
function getContentSha(res, callback) {
var shasum = crypto.createHash('sha256')
res.on('data', function (chunk) {
shasum.update(chunk)
}).on('end', function () {
callback(null, shasum.digest('hex'))
})
}
function go () {
log.verbose('ensuring nodedir is created', devDir)
// first create the dir for the node dev files
mkdir(devDir, function (err, created) {
if (err) {
if (err.code == 'EACCES') {
eaccesFallback()
} else {
cb(err)
}
return
}
if (created) {
log.verbose('created nodedir', created)
}
// now download the node tarball
var tarPath = gyp.opts.tarball
var badDownload = false
, extractCount = 0
, gunzip = zlib.createGunzip()
, extracter = tar.Extract({ path: devDir, strip: 1, filter: isValid })
var contentShasums = {}
var expectShasums = {}
// checks if a file to be extracted from the tarball is valid.
// only .h header files and the gyp files get extracted
function isValid () {
var name = this.path.substring(devDir.length + 1)
var isValid = valid(name)
if (name === '' && this.type === 'Directory') {
// the first directory entry is ok
return true
}
if (isValid) {
log.verbose('extracted file from tarball', name)
extractCount++
} else {
// invalid
log.silly('ignoring from tarball', name)
}
return isValid
}
gunzip.on('error', cb)
extracter.on('error', cb)
extracter.on('end', afterTarball)
// download the tarball, gunzip and extract!
if (tarPath) {
var input = fs.createReadStream(tarPath)
input.pipe(gunzip).pipe(extracter)
return
}
try {
var req = download(gyp, process.env, release.tarballUrl)
} catch (e) {
return cb(e)
}
// something went wrong downloading the tarball?
req.on('error', function (err) {
if (err.code === 'ENOTFOUND') {
return cb(new Error('This is most likely not a problem with node-gyp or the package itself and\n' +
'is related to network connectivity. In most cases you are behind a proxy or have bad \n' +
'network settings.'))
}
badDownload = true
cb(err)
})
req.on('close', function () {
if (extractCount === 0) {
cb(new Error('Connection closed while downloading tarball file'))
}
})
req.on('response', function (res) {
if (res.statusCode !== 200) {
badDownload = true
cb(new Error(res.statusCode + ' response downloading ' + release.tarballUrl))
return
}
// content checksum
getContentSha(res, function (_, checksum) {
var filename = path.basename(release.tarballUrl).trim()
contentShasums[filename] = checksum
log.verbose('content checksum', filename, checksum)
})
// start unzipping and untaring
req.pipe(gunzip).pipe(extracter)
})
// invoked after the tarball has finished being extracted
function afterTarball () {
if (badDownload) return
if (extractCount === 0) {
return cb(new Error('There was a fatal problem while downloading/extracting the tarball'))
}
log.verbose('tarball', 'done parsing tarball')
var async = 0
if (win) {
// need to download node.lib
async++
downloadNodeLib(deref)
}
// write the "installVersion" file
async++
var installVersionPath = path.resolve(devDir, 'installVersion')
fs.writeFile(installVersionPath, gyp.package.installVersion + '\n', deref)
// Only download SHASUMS.txt if not using tarPath override
if (!tarPath) {
// download SHASUMS.txt
async++
downloadShasums(deref)
}
if (async === 0) {
// no async tasks required
cb()
}
function deref (err) {
if (err) return cb(err)
async--
if (!async) {
log.verbose('download contents checksum', JSON.stringify(contentShasums))
// check content shasums
for (var k in contentShasums) {
log.verbose('validating download checksum for ' + k, '(%s == %s)', contentShasums[k], expectShasums[k])
if (contentShasums[k] !== expectShasums[k]) {
cb(new Error(k + ' local checksum ' + contentShasums[k] + ' not match remote ' + expectShasums[k]))
return
}
}
cb()
}
}
}
function downloadShasums(done) {
log.verbose('check download content checksum, need to download `SHASUMS256.txt`...')
var shasumsPath = path.resolve(devDir, 'SHASUMS256.txt')
log.verbose('checksum url', release.shasumsUrl)
try {
var req = download(gyp, process.env, release.shasumsUrl)
} catch (e) {
return cb(e)
}
req.on('error', done)
req.on('response', function (res) {
if (res.statusCode !== 200) {
done(new Error(res.statusCode + ' status code downloading checksum'))
return
}
var chunks = []
res.on('data', function (chunk) {
chunks.push(chunk)
})
res.on('end', function () {
var lines = Buffer.concat(chunks).toString().trim().split('\n')
lines.forEach(function (line) {
var items = line.trim().split(/\s+/)
if (items.length !== 2) return
// 0035d18e2dcf9aad669b1c7c07319e17abfe3762 ./node-v0.11.4.tar.gz
var name = items[1].replace(/^\.\//, '')
expectShasums[name] = items[0]
})
log.verbose('checksum data', JSON.stringify(expectShasums))
done()
})
})
}
function downloadNodeLib (done) {
log.verbose('on Windows; need to download `' + release.name + '.lib`...')
var dir32 = path.resolve(devDir, 'ia32')
, dir64 = path.resolve(devDir, 'x64')
, libPath32 = path.resolve(dir32, release.name + '.lib')
, libPath64 = path.resolve(dir64, release.name + '.lib')
log.verbose('32-bit ' + release.name + '.lib dir', dir32)
log.verbose('64-bit ' + release.name + '.lib dir', dir64)
log.verbose('`' + release.name + '.lib` 32-bit url', release.libUrl32)
log.verbose('`' + release.name + '.lib` 64-bit url', release.libUrl64)
var async = 2
mkdir(dir32, function (err) {
if (err) return done(err)
log.verbose('streaming 32-bit ' + release.name + '.lib to:', libPath32)
try {
var req = download(gyp, process.env, release.libUrl32, cb)
} catch (e) {
return cb(e)
}
req.on('error', done)
req.on('response', function (res) {
if (res.statusCode !== 200) {
done(new Error(res.statusCode + ' status code downloading 32-bit ' + release.name + '.lib'))
return
}
getContentSha(res, function (_, checksum) {
contentShasums[release.libPath32] = checksum
log.verbose('content checksum', release.libPath32, checksum)
})
var ws = fs.createWriteStream(libPath32)
ws.on('error', cb)
req.pipe(ws)
})
req.on('end', function () {
--async || done()
})
})
mkdir(dir64, function (err) {
if (err) return done(err)
log.verbose('streaming 64-bit ' + release.name + '.lib to:', libPath64)
try {
var req = download(gyp, process.env, release.libUrl64, cb)
} catch (e) {
return cb(e)
}
req.on('error', done)
req.on('response', function (res) {
if (res.statusCode !== 200) {
done(new Error(res.statusCode + ' status code downloading 64-bit ' + release.name + '.lib'))
return
}
getContentSha(res, function (_, checksum) {
contentShasums[release.libPath64] = checksum
log.verbose('content checksum', release.libPath64, checksum)
})
var ws = fs.createWriteStream(libPath64)
ws.on('error', cb)
req.pipe(ws)
})
req.on('end', function () {
--async || done()
})
})
} // downloadNodeLib()
}) // mkdir()
} // go()
/**
* Checks if a given filename is "valid" for this installation.
*/
function valid (file) {
// header files
return minimatch(file, '*.h', { matchBase: true }) ||
minimatch(file, '*.gypi', { matchBase: true })
}
/**
* The EACCES fallback is a workaround for npm's `sudo` behavior, where
* it drops the permissions before invoking any child processes (like
* node-gyp). So what happens is the "nobody" user doesn't have
* permission to create the dev dir. As a fallback, make the tmpdir() be
* the dev dir for this installation. This is not ideal, but at least
* the compilation will succeed...
*/
function eaccesFallback () {
var tmpdir = osenv.tmpdir()
gyp.devDir = path.resolve(tmpdir, '.node-gyp')
log.warn('EACCES', 'user "%s" does not have permission to access the dev dir "%s"', osenv.user(), devDir)
log.warn('EACCES', 'attempting to reinstall using temporary dev dir "%s"', gyp.devDir)
if (process.cwd() == tmpdir) {
log.verbose('tmpdir == cwd', 'automatically will remove dev files after to save disk space')
gyp.todo.push({ name: 'remove', args: argv })
}
gyp.commands.install(argv, cb)
}
}
function download (gyp, env, url) {
log.http('GET', url)
var requestOpts = {
uri: url
, headers: {
'User-Agent': 'node-gyp v' + gyp.version + ' (node ' + process.version + ')'
}
}
var cafile = gyp.opts.cafile
if (cafile) {
requestOpts.ca = readCAFile(cafile)
}
// basic support for a proxy server
var proxyUrl = gyp.opts.proxy
|| env.http_proxy
|| env.HTTP_PROXY
|| env.npm_config_proxy
if (proxyUrl) {
if (/^https?:\/\//i.test(proxyUrl)) {
log.verbose('download', 'using proxy url: "%s"', proxyUrl)
requestOpts.proxy = proxyUrl
} else {
log.warn('download', 'ignoring invalid "proxy" config setting: "%s"', proxyUrl)
}
}
var req = request(requestOpts)
req.on('response', function (res) {
log.http(res.statusCode, url)
})
return req
}
function readCAFile (filename) {
// The CA file can contain multiple certificates so split on certificate
// boundaries. [\S\s]*? is used to match everything including newlines.
var ca = fs.readFileSync(filename, 'utf8')
var re = /(-----BEGIN CERTIFICATE-----[\S\s]*?-----END CERTIFICATE-----)/g
return ca.match(re)
}
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