pm2
Version:
Production process manager for Node.JS applications with a built-in load balancer.
344 lines (323 loc) • 10.7 kB
JavaScript
/**
* Copyright 2013-2022 the PM2 project authors. All rights reserved.
* Use of this source code is governed by a license that
* can be found in the LICENSE file.
*/
;
var fs = require('fs');
var http = require('http');
var url = require('url');
var path = require('path');
var debug = require('debug')('pm2:serve');
// var probe = require('@pm2/io');
// var errorMeter = probe.meter({
// name : '404/sec',
// samples : 1,
// timeframe : 60
// })
/**
* list of supported content types.
*/
var contentTypes = {
'3gp': 'video/3gpp',
'a': 'application/octet-stream',
'ai': 'application/postscript',
'aif': 'audio/x-aiff',
'aiff': 'audio/x-aiff',
'asc': 'application/pgp-signature',
'asf': 'video/x-ms-asf',
'asm': 'text/x-asm',
'asx': 'video/x-ms-asf',
'atom': 'application/atom+xml',
'au': 'audio/basic',
'avi': 'video/x-msvideo',
'bat': 'application/x-msdownload',
'bin': 'application/octet-stream',
'bmp': 'image/bmp',
'bz2': 'application/x-bzip2',
'c': 'text/x-c',
'cab': 'application/vnd.ms-cab-compressed',
'cc': 'text/x-c',
'chm': 'application/vnd.ms-htmlhelp',
'class': 'application/octet-stream',
'com': 'application/x-msdownload',
'conf': 'text/plain',
'cpp': 'text/x-c',
'crt': 'application/x-x509-ca-cert',
'css': 'text/css',
'csv': 'text/csv',
'cxx': 'text/x-c',
'deb': 'application/x-debian-package',
'der': 'application/x-x509-ca-cert',
'diff': 'text/x-diff',
'djv': 'image/vnd.djvu',
'djvu': 'image/vnd.djvu',
'dll': 'application/x-msdownload',
'dmg': 'application/octet-stream',
'doc': 'application/msword',
'dot': 'application/msword',
'dtd': 'application/xml-dtd',
'dvi': 'application/x-dvi',
'ear': 'application/java-archive',
'eml': 'message/rfc822',
'eps': 'application/postscript',
'exe': 'application/x-msdownload',
'f': 'text/x-fortran',
'f77': 'text/x-fortran',
'f90': 'text/x-fortran',
'flv': 'video/x-flv',
'for': 'text/x-fortran',
'gem': 'application/octet-stream',
'gemspec': 'text/x-script.ruby',
'gif': 'image/gif',
'gz': 'application/x-gzip',
'h': 'text/x-c',
'hh': 'text/x-c',
'htm': 'text/html',
'html': 'text/html',
'ico': 'image/vnd.microsoft.icon',
'ics': 'text/calendar',
'ifb': 'text/calendar',
'iso': 'application/octet-stream',
'jar': 'application/java-archive',
'java': 'text/x-java-source',
'jnlp': 'application/x-java-jnlp-file',
'jpeg': 'image/jpeg',
'jpg': 'image/jpeg',
'js': 'application/javascript',
'json': 'application/json',
'log': 'text/plain',
'm3u': 'audio/x-mpegurl',
'm4v': 'video/mp4',
'man': 'text/troff',
'mathml': 'application/mathml+xml',
'mbox': 'application/mbox',
'mdoc': 'text/troff',
'me': 'text/troff',
'mid': 'audio/midi',
'midi': 'audio/midi',
'mime': 'message/rfc822',
'mml': 'application/mathml+xml',
'mng': 'video/x-mng',
'mov': 'video/quicktime',
'mp3': 'audio/mpeg',
'mp4': 'video/mp4',
'mp4v': 'video/mp4',
'mpeg': 'video/mpeg',
'mpg': 'video/mpeg',
'ms': 'text/troff',
'msi': 'application/x-msdownload',
'odp': 'application/vnd.oasis.opendocument.presentation',
'ods': 'application/vnd.oasis.opendocument.spreadsheet',
'odt': 'application/vnd.oasis.opendocument.text',
'ogg': 'application/ogg',
'p': 'text/x-pascal',
'pas': 'text/x-pascal',
'pbm': 'image/x-portable-bitmap',
'pdf': 'application/pdf',
'pem': 'application/x-x509-ca-cert',
'pgm': 'image/x-portable-graymap',
'pgp': 'application/pgp-encrypted',
'pkg': 'application/octet-stream',
'pl': 'text/x-script.perl',
'pm': 'text/x-script.perl-module',
'png': 'image/png',
'pnm': 'image/x-portable-anymap',
'ppm': 'image/x-portable-pixmap',
'pps': 'application/vnd.ms-powerpoint',
'ppt': 'application/vnd.ms-powerpoint',
'ps': 'application/postscript',
'psd': 'image/vnd.adobe.photoshop',
'py': 'text/x-script.python',
'qt': 'video/quicktime',
'ra': 'audio/x-pn-realaudio',
'rake': 'text/x-script.ruby',
'ram': 'audio/x-pn-realaudio',
'rar': 'application/x-rar-compressed',
'rb': 'text/x-script.ruby',
'rdf': 'application/rdf+xml',
'roff': 'text/troff',
'rpm': 'application/x-redhat-package-manager',
'rss': 'application/rss+xml',
'rtf': 'application/rtf',
'ru': 'text/x-script.ruby',
's': 'text/x-asm',
'sgm': 'text/sgml',
'sgml': 'text/sgml',
'sh': 'application/x-sh',
'sig': 'application/pgp-signature',
'snd': 'audio/basic',
'so': 'application/octet-stream',
'svg': 'image/svg+xml',
'svgz': 'image/svg+xml',
'swf': 'application/x-shockwave-flash',
't': 'text/troff',
'tar': 'application/x-tar',
'tbz': 'application/x-bzip-compressed-tar',
'tcl': 'application/x-tcl',
'tex': 'application/x-tex',
'texi': 'application/x-texinfo',
'texinfo': 'application/x-texinfo',
'text': 'text/plain',
'tif': 'image/tiff',
'tiff': 'image/tiff',
'torrent': 'application/x-bittorrent',
'tr': 'text/troff',
'txt': 'text/plain',
'vcf': 'text/x-vcard',
'vcs': 'text/x-vcalendar',
'vrml': 'model/vrml',
'war': 'application/java-archive',
'wav': 'audio/x-wav',
'webp': 'image/webp',
'wma': 'audio/x-ms-wma',
'wmv': 'video/x-ms-wmv',
'wmx': 'video/x-ms-wmx',
'wrl': 'model/vrml',
'wsdl': 'application/wsdl+xml',
'xbm': 'image/x-xbitmap',
'xhtml': 'application/xhtml+xml',
'xls': 'application/vnd.ms-excel',
'xml': 'application/xml',
'xpm': 'image/x-xpixmap',
'xsl': 'application/xml',
'xslt': 'application/xslt+xml',
'yaml': 'text/yaml',
'yml': 'text/yaml',
'zip': 'application/zip',
'woff': 'application/font-woff',
'woff2': 'application/font-woff',
'otf': 'application/font-sfnt',
'otc': 'application/font-sfnt',
'ttf': 'application/font-sfnt'
};
var options = {
port: process.env.PM2_SERVE_PORT || process.argv[3] || 8080,
host: process.env.PM2_SERVE_HOST || process.argv[4] || '0.0.0.0',
path: path.resolve(process.env.PM2_SERVE_PATH || process.argv[2] || '.'),
spa: process.env.PM2_SERVE_SPA === 'true',
homepage: process.env.PM2_SERVE_HOMEPAGE || '/index.html',
basic_auth: process.env.PM2_SERVE_BASIC_AUTH === 'true' ? {
username: process.env.PM2_SERVE_BASIC_AUTH_USERNAME,
password: process.env.PM2_SERVE_BASIC_AUTH_PASSWORD
} : null,
monitor: process.env.PM2_SERVE_MONITOR
};
if (typeof options.port === 'string') {
options.port = parseInt(options.port) || 8080
}
if (typeof options.monitor === 'string' && options.monitor !== '') {
try {
let fileContent = fs.readFileSync(path.join(process.env.PM2_HOME, 'agent.json5')).toString()
// Handle old configuration with json5
fileContent = fileContent.replace(/\s(\w+):/g, '"$1":')
// parse
let conf = JSON.parse(fileContent)
options.monitorBucket = conf.public_key
} catch (e) {
console.log('Interaction file does not exist')
}
}
// start an HTTP server
http.createServer(function (request, response) {
if (options.basic_auth) {
if (!request.headers.authorization || request.headers.authorization.indexOf('Basic ') === -1) {
return sendBasicAuthResponse(response)
}
var user = parseBasicAuth(request.headers.authorization)
if (user.username !== options.basic_auth.username || user.password !== options.basic_auth.password) {
return sendBasicAuthResponse(response)
}
}
serveFile(request.url, request, response);
}).listen(options.port, options.host, function (err) {
if (err) {
console.error(err);
process.exit(1);
}
console.log('Exposing %s directory on %s:%d', options.path, options.host, options.port);
});
function serveFile(uri, request, response) {
var file = decodeURIComponent(url.parse(uri || request.url).pathname);
if (file === '/' || file === '') {
file = options.homepage;
request.wantHomepage = true;
}
var filePath = path.resolve(options.path + file);
// since we call filesystem directly so we need to verify that the
// url doesn't go outside the serve path
if (filePath.indexOf(options.path) !== 0) {
response.writeHead(403, { 'Content-Type': 'text/html' });
return response.end('403 Forbidden');
}
var contentType = contentTypes[filePath.split('.').pop().toLowerCase()] || 'text/plain';
fs.readFile(filePath, function (error, content) {
if (error) {
if ((!options.spa || file === options.homepage)) {
console.error('[%s] Error while serving %s with content-type %s : %s',
new Date(), filePath, contentType, error.message || error);
}
//errorMeter.mark();
if (error.code === 'ENOENT') {
if (options.spa && !request.wantHomepage) {
request.wantHomepage = true;
return serveFile(`/${path.basename(file)}`, request, response);
} else if (options.spa && file !== options.homepage) {
return serveFile(options.homepage, request, response);
}
fs.readFile(options.path + '/404.html', function (err, content) {
content = err ? '404 Not Found' : content;
response.writeHead(404, { 'Content-Type': 'text/html' });
return response.end(content, 'utf-8');
});
return;
}
response.writeHead(500);
return response.end('Sorry, check with the site admin for error: ' + error.code + ' ..\n');
}
// Add CORS headers to allow browsers to fetch data directly
response.writeHead(200, {
'Content-Type': contentType,
'Access-Control-Allow-Origin': '*',
'Access-Control-Allow-Methods': 'GET'
});
if (options.monitorBucket && contentType === 'text/html') {
content = content.toString().replace('</body>', `
<script>
;(function (b,e,n,o,i,t) {
b[o]=b[o]||function(f){(b[o].c=b[o].c||[]).push(f)};
t=e.createElement(i);e=e.getElementsByTagName(i)[0];
t.async=1;t.src=n;e.parentNode.insertBefore(t,e);
}(window,document,'https://apm.pm2.io/pm2-io-apm-browser.v1.js','pm2Ready','script'))
pm2Ready(function(apm) {
apm.setBucket('${options.monitorBucket}')
apm.setApplication('${options.monitor}')
apm.reportTimings()
apm.reportIssues()
})
</script>
</body>
`);
}
response.end(content, 'utf-8');
debug('[%s] Serving %s with content-type %s', Date.now(), filePath, contentType);
});
}
function parseBasicAuth(auth) {
// auth is like `Basic Y2hhcmxlczoxMjM0NQ==`
var tmp = auth.split(' ');
var buf = Buffer.from(tmp[1], 'base64');
var plain = buf.toString();
var creds = plain.split(':');
return {
username: creds[0],
password: creds[1]
}
}
function sendBasicAuthResponse(response) {
response.writeHead(401, {
'Content-Type': 'text/html',
'WWW-Authenticate': 'Basic realm="Authentication service"'
});
return response.end('401 Unauthorized');
}