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index.js
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index.js
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// jshint strict:true, node:true, camelcase:true, curly:true, maxcomplexity:15, newcap:true
"use strict";
global.modulesCache = global.modulesCache || {};
if(global.modulesCache.pillars){
module.exports = global.modulesCache.pillars;
return;
}
var fs = require('fs');
var paths = require('path');
var colors = require('colors');
var pillarsPackage = require('./package');
// Splash screen...
console.log(("\n\n"+
" ###########################################################\n"+
" ##·······················································##\n"+
" ##·········##############···###···##############·········##\n"+
" ##········###·········###···###···###·········###········##\n"+
" ##········###·········###···###···###·········###········##\n"+
" ##·········###········###···###···###········###·········##\n"+
" ##···········####·····###···###···###·····####···········##\n"+
" ##····················###···###···###····················##\n"+
" ##····················###···###···###····················##\n"+
" ##····················###···###···###····················##\n"+
" ##····················###···###···###····················##\n"+
" ##····················###···###···###····················##\n"+
" ##····················###···###···###····················##\n"+
" ##····················###···###···###····················##\n"+
" ##····················###···###···###····················##\n"+
" ##···········####·····###···###···###·····####···········##\n"+
" ##·········###········###···###···###········###·········##\n"+
" ##········###·········###···###···###·········###········##\n"+
" ##········###·········###···###···###·········###········##\n"+
" ##·········##############···###···##############·········##\n"+
" ##·······················································## "+pillarsPackage.description+"\n"+
" ########################################################### v"+pillarsPackage.version+"\n\n"
).replace(/·/g,' '.bgRed).replace(/#/g,' '.bgWhite));
// Pillars base export (for cyclical requires)
var pillars = module.exports = global.modulesCache.pillars = {
};
// Pillars version
Object.defineProperty(pillars,"version",{
enumerable : true,
get : function(){return pillarsPackage.version;}
});
// Path & resolve
pillars.path = __dirname;
pillars.resolve = function(path){
return paths.resolve(pillars.path,path);
};
// Get argv > args
var arvRegexp = /^([\w]+)\=(.*)$/;
pillars.args = {};
for(var i=0,l=process.argv.length;i<l;i++){
if(arvRegexp.test(process.argv[i])){
var m = arvRegexp.exec(process.argv[i]);
pillars.args[m[1]]=m[2];
}
}
// Configuration propierties & config method
pillars.config = {
debug: false,
logFile: false,
cors: false,
maxUploadSize: 5*1024*1024,
maxCacheFileSize : 5*1024*1024,
cacheMaxSamples : 100,
cacheMaxSize : 250*1024*1024,
cacheMaxItems : 5000,
fileMaxAge : 7*24*60*60,
renderReload: false,
favicon: pillars.resolve('./favicon.ico')
};
pillars.configure = function(config){
for(var i=0,k=Object.keys(config),l=k.length;i<l;i++){
pillars.config[k[i]]=config[k[i]];
}
return pillars;
};
// Dependencies, globals...
var templated = global.templated = pillars.templated = require('templated');
var crier = global.crier = pillars.crier = require('crier').addGroup('pillars');
var i18n = global.i18n = pillars.i18n = require('textualization');
i18n.load('pillars',paths.join(__dirname,'./languages'));
i18n.languages = ['en'];
var Procedure = global.Procedure = require('procedure');
var ObjectArray = global.ObjectArray = require('objectarray');
var Scheduled = global.Scheduled = pillars.scheduled = require('scheduled');
require('date.format');
require('string.format');
require('json.decycled');
// Templated default engines
templated.loadDefaultEngines();
// Pillars components
var Gangway = global.Gangway = require('./lib/Gangway');
var Route = global.Route = require('./lib/Route');
var Middleware = global.Middleware = require('./lib/Middleware');
//var Plugin = global.Plugin = require('./lib/Middleware'); // For old name support
var HttpService = global.HttpService = require('./lib/HttpService');
// Middleware & Routes & Services
pillars.middleware = new ObjectArray();
pillars.routes = new ObjectArray();
pillars.services = new ObjectArray();
// Crier default rule
crier.rules.add({
id:'default',
rule:function(stores,location,lvl,msg,meta){
var consoleLogLevels = ['alert','error','warn'];
if(pillars.config.debug){
consoleLogLevels.push('log','info');
}
var haveConsoleStore = stores.indexOf("console");
if(haveConsoleStore>=0){
stores.splice(haveConsoleStore,1);
}
if(consoleLogLevels.indexOf(lvl)>=0){
stores.push('console');
}
}
});
// Setup log file
if(pillars.config.logFile){
// Check log directory
var logsDir = "./logs";
fs.stat(logsDir, function (error, stats){
if(error){
fs.mkdir(logsDir,function(error){
if(error){
crier.error('logfile.dir.error',{path: logsDir});
} else {
crier.info('logfile.dir.ok',{path: logsDir});
logFileStart();
}
});
} else if(!stats.isDirectory()){
crier.info('logfile.dir.exists',{path: logsDir});
} else {
crier.info('logfile.dir.ok',{path: logsDir});
logFileStart();
}
});
var logFile = false;
var logFileLoader = function(){
if(logFile){
logFile.end();
}
var path = logsDir+'/'+(new Date()).format('{YYYY}{MM}{DD}')+'.log';
logFile = fs.createWriteStream(path,{flags: 'a'})
.on('open',function(fd){
crier.info('logfile.ok',{path:path});
})
.on('error',function(error){
crier.warn('logfile.error',{path:path,error:error});
})
;
};
var logFileStart = function(){
logFileLoader();
crier.rules.add({
id:'logFile',
rule:function(stores,location,lvl,msg,meta){
if(['log','alert','error','warn'].indexOf(lvl)>=0){
stores.push('logFile');
}
}
});
crier.stores.add({
id:'logFile',
handler: function(location,lvl,msg,meta,done){
var line = (new Date()).format('{YYYY}/{MM}/{DD} {hh}:{mm}:{ss}:{mss}',true)+'\t'+lvl.toUpperCase()+'\t'+location.join('.')+'\t'+JSON.decycled(msg)+'\t'+JSON.decycled(meta)+'\n';
logFile.write(line);
done.result(line);
}
});
new Scheduled({
id: 'logCleaner',
pattern: '0 0 *',
task: logFileLoader
}).start();
};
}
// Load builtin Middleware
var middleware = [
require('./middleware/langPath.js'),
require('./middleware/encoding.js'),
require('./middleware/favicon.js'),
require('./middleware/router.js'),
require('./middleware/maxUploadSize.js'),
require('./middleware/CORS.js'),
require('./middleware/OPTIONS.js'),
require('./middleware/sessions.js'),
require('./middleware/directory.js'),
require('./middleware/bodyReader.js')
];
for(var i=0,l=middleware.length;i<l;i++){
pillars.middleware.insert(middleware[i]);
}
crier.info('middleware.loaded',{list:pillars.middleware.keys()});
// Pillars handler
pillars.handler = function pillarsHandler(req,res){
var gw = new Gangway(req,res);
var middlewareHandling = new Procedure();
for(var i=0,l=pillars.middleware.length;i<l;i++){
var middleware = pillars.middleware[i];
if(middleware.handler.isConnect){
middlewareHandling.add(middleware.id,middleware.handler,gw.req,gw.res);
} else {
middlewareHandling.add(middleware.id,middleware.handler,gw);
}
}
// Express binds (TODO: Move this as formal Middleware)
middlewareHandling.launch(function(errors){
if(errors){
gw.error(500,errors[0]);
} else if(gw.routing && gw.routing.handlers && gw.routing.handlers.length>0){
var routeHandling = new Procedure();
var routeNames = ObjectArray.prototype.keys.call(gw.routing.routes).join('.');
for(var i=0,l=gw.routing.handlers.length;i<l;i++){
var handler = gw.routing.handlers[i];
var handlerName = routeNames+".";
handlerName += handler.name?handler.name:i+1===l?"handler":"middleware["+i+"]";
if(handler.isConnect){
routeHandling.add(handlerName,handler,gw.req,gw.res);
} else {
routeHandling.add(handlerName,handler,gw);
}
}
routeHandling.launch(function(errors){
if(errors){
gw.error(500,errors[0]);
}
});
} else {
gw.error(404);
}
});
};
// Default http service
pillars.services.insert(new HttpService({id:'http'}));
// Shutdown control
var shuttingdown = false;
var shuttingdownCounter = 0;
process.on('SIGINT', function() {
if(!shuttingdown){
shuttingdown = true;
crier.info('shutdown.shuttingdown');
var procedure = new Procedure();
var i,l;
for(i=0,l=pillars.services.length;i<l;i++){
if(typeof pillars.services[i].stop === 'function'){
procedure.add(pillars.services[i].stop.bind(pillars.services[i]));
}
}
Scheduled.close();
procedure.race().launch(function(errors){
if(errors){
crier.error('shutdown.errors',{errors:errors},processExit);
} else {
crier.info('shutdown.ok',{},processExit);
}
});
} else {
shuttingdownCounter++;
if(shuttingdownCounter>=3){
crier.info('shutdown.forced',{},processExit);
}
}
});
function processExit(){
setTimeout(process.exit,500);
}
var fileCache = pillars.cache = {
size:0,
items:{}, // item: {uses:[],average:AverageTimeStamp}
get : function(id,callback){
var item = fileCache.items[id];
if(typeof item !== 'undefined'){
var uses = item.uses;
uses.push(Date.now());
if(uses.length>=pillars.config.cacheMaxSamples){
uses.splice(0,uses.length-pillars.config.cacheMaxSamples);
}
// All samples sum
var timesum = 0;
for(var i=0,l=uses.length;i<l;i++){
timesum+=uses[i];
}
// Average timestamp of all samples for this item
item.average = Math.round(timesum/uses.length);
if(Date.now()<=item.timeStamp+5000){
callback(null,item);
} else {
fileCache.file(id,callback,item);
}
} else {
fileCache.file(id,callback);
}
},
file: function(id,callback,update){
var item = update?update:{};
fs.stat(id, function(error,stats){
if(error){
callback(error);
} else if(stats.size > pillars.config.maxCacheFileSize){
delete item.identity;
delete item.deflate;
delete item.gzip;
delete fileCache.items[id];
callback(null,{stats:stats});
} else {
item.timeStamp = Date.now();
if(!update || stats.mtime>item.stats.mtime){
fs.readFile(id, function(error,data){
if(error){
callback(error);
} else {
fileCache.items[id] = item;
fileCache.size += stats.size;
item.uses = item.uses || [Date.now()];
item.stats = stats;
delete item.identity;
delete item.deflate;
delete item.gzip;
item.identity = data;
callback(null,item);
}
});
} else {
callback(null,item);
}
}
});
},
cleaner: function(){
// Get a list of items ids/paths
var rank = Object.keys(fileCache.items);
// Sort by average.
rank.sort(function(a, b) {
a = fileCache.items[a].average;
b = fileCache.items[b].average;
if(typeof a === 'undefined'){return -1;}
if(typeof b === 'undefined'){return 1;}
return a-b;
});
// Reduce while
while(fileCache.size>pillars.config.cacheMaxSize || fileCache.items.length>pillars.config.cacheMaxItems){
var removed = rank.shift();
var size = fileCache.items[removed].stats.size;
delete fileCache.items[removed];
fileCache.size -= size;
}
crier.info('fileCache.cacheCleaned');
}
};
fileCache.cleanerJob = new Scheduled({
id: 'fileCacheCleaner',
pattern: '*',
task: fileCache.cleaner
}).start();