cloudcmd/lib/server/main.js
2012-11-15 10:27:33 -05:00

138 lines
4.6 KiB
JavaScript

(function(){
"strict mode";
var DIR,
LIBDIR,
SRVDIR,
Util,
Extensions = {
'.css' : 'text/css',
'.js' : 'text/javascript',
'.png' : 'image/png',
'.json' : 'application/json',
'.html' : 'text/html',
'.woff' : 'font/woff',
'.appcache' : 'text/cache-manifest',
'.mp3' : 'audio/mpeg'
};
/* Constants */
exports.DIR = DIR = process.cwd() + '/',
exports.LIBDIR = LIBDIR = DIR + 'lib/',
exports.SRVDIR = SRVDIR = LIBDIR + 'server/',
exports.WIN32 = isWin32();
/* Functions */
exports.generateHeaders = generateHeaders,
exports.require = mrequire,
exports.librequire = librequire,
exports.srvrequire = srvrequire,
exports.rootrequire = rootrequire,
/* Native Modules*/
exports.child_process = require('child_process'),
exports.fs = require('fs'),
exports.http = require('http'),
exports.https = require('https'),
exports.path = require('path'),
exports.url = require('url'),
exports.querystring = require('querystring'),
/* Needed Modules */
exports.util = Util = require(LIBDIR + 'util'),
/* Main Information */
exports.config = rootrequire('config');
exports.mainpackage = rootrequire('package');
/* Additional Modules */
exports.auth = srvrequire('auth'),
exports.appcache = srvrequire('appcache'),
exports.cache = srvrequire('cache').Cache,
exports.cloudfunc = librequire('cloudfunc'),
exports.rest = srvrequire('rest').api,
exports.socket = srvrequire('socket'),
exports.update = srvrequire('update'),
exports.minify = srvrequire('minify').Minify,
exports.zlib = mrequire('zlib');
/**
* function do safe require of needed module
* @param {Strin} pSrc
*/
function mrequire(pSrc){
var lModule,
lError = Util.tryCatch(function(){
lModule = require(pSrc);
});
if(lError)
console.log(lError);
return lModule;
}
function rootrequire(pSrc){ return mrequire(DIR + pSrc); }
function librequire(pSrc){ return mrequire(LIBDIR + pSrc); }
function srvrequire(pSrc){ return mrequire(SRVDIR + pSrc); }
/**
* function check is current platform is win32
*/
function isWin32(){ return process.platform === 'win32'; }
/**
* Функция создаёт заголовки файлов
* в зависимости от расширения файла
* перед отправкой их клиенту
* @param pName - имя файла
* @param pGzip - данные сжаты gzip'ом
*/
function generateHeaders(pName, pGzip, pQuery){
var lType = '',
lCacheControl = 0,
lContentEncoding = '',
lRet,
lDot = pName.lastIndexOf('.'),
lExt = pName.substr(lDot);
if( Util.strCmp(lExt, '.appcache') )
lCacheControl = 1;
lType = Extensions[lExt] || 'text/plain';
if( !Util.isContainStr(lType, 'img') )
lContentEncoding = '; charset=UTF-8';
if(Util.strCmp(pQuery, 'download') )
lType = 'application/octet-stream';
if(!lCacheControl)
lCacheControl = 31337 * 21;
lRet = {
/* if type of file any, but img -
* then we shoud specify charset
*/
'Content-Type': lType + lContentEncoding,
'cache-control': 'max-age=' + lCacheControl,
'last-modified': new Date().toString(),
/* https://developers.google.com/speed/docs/best-practices
/caching?hl=ru#LeverageProxyCaching */
'Vary': 'Accept-Encoding'
};
if(pGzip)
lRet['content-encoding'] = 'gzip';
return lRet;
}
})();