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/**
* @module FrameworkInternal
* @author Peter Širka <[email protected]>
* @copyright Peter Širka 2012-2014
* @version 1.5.0
*/
'use strict';
var crypto = require('crypto');
var fs = require('fs');
var utils = require('./utils');
var ENCODING = 'utf8';
var UNDEFINED = 'undefined';
var FUNCTION = 'function';
var REG_1 = /[\n\r\t]+/g;
var REG_2 = /\s{2,}/g;
/*
Internal function / Parse data from Request
@req {ServerRequest}
@contentType {String}
@maximumSize {Number}
@tmpDirectory {String}
@onXSS {Function}
@callback {Function}
*/
exports.parseMULTIPART = function(req, contentType, maximumSize, tmpDirectory, onXSS, callback) {
var parser = new MultipartParser();
var boundary = contentType.split(';')[1];
var isFile = false;
var size = 0;
var stream = null;
var tmp = {
name: '',
value: '',
contentType: '',
fileName: '',
fileNameTmp: '',
fileSize: 0,
isFile: false,
step: 0,
width: 0,
height: 0
};
var ip = req.ip.replace(/\./g, '');
var close = 0;
var isXSS = false;
var rm = null;
boundary = boundary.substring(boundary.indexOf('=') + 1);
req.buffer_exceeded = false;
req.buffer_has = true;
parser.initWithBoundary(boundary);
parser.onPartBegin = function() {
tmp.value = '';
tmp.fileSize = 0;
tmp.step = 0;
tmp.isFile = false;
};
parser.onHeaderValue = function(buffer, start, end) {
if (req.buffer_exceeded)
return;
if (isXSS)
return;
var arr = buffer.slice(start, end).toString(ENCODING).split(';');
if (tmp.step === 1) {
tmp.contentType = arr[0];
tmp.step = 2;
return;
}
if (tmp.step !== 0)
return;
tmp.name = arr[1].substring(arr[1].indexOf('=') + 2);
tmp.name = tmp.name.substring(0, tmp.name.length - 1);
tmp.step = 1;
if (arr.length !== 3)
return;
tmp.fileName = arr[2].substring(arr[2].indexOf('=') + 2);
tmp.fileName = tmp.fileName.substring(0, tmp.fileName.length - 1);
tmp.isFile = true;
tmp.fileNameTmp = utils.combine(tmpDirectory, ip + '-' + new Date().getTime() + '-' + utils.random(100000) + '.upload');
stream = fs.createWriteStream(tmp.fileNameTmp, {
flags: 'w'
});
stream.once('close', function() {
close--;
});
stream.once('error', function() {
close--;
});
close++;
};
parser.onPartData = function(buffer, start, end) {
if (req.buffer_exceeded)
return;
if (isXSS)
return;
var data = buffer.slice(start, end);
var length = data.length;
size += length;
if (size >= maximumSize) {
req.buffer_exceeded = true;
if (rm === null)
rm = [tmp.fileNameTmp];
else
rm.push(tmp.fileNameTmp);
return;
}
if (!tmp.isFile) {
tmp.value += data.toString(ENCODING);
return;
}
if (tmp.fileSize === 0) {
var wh = null;
switch (tmp.contentType) {
case 'image/jpeg':
wh = require('./image').measureJPG(data);
break;
case 'image/gif':
wh = require('./image').measureGIF(data);
break;
case 'image/png':
wh = require('./image').measurePNG(data);
break;
}
if (wh) {
tmp.width = wh.width;
tmp.height = wh.height;
}
}
stream.write(data);
tmp.fileSize += length;
};
parser.onPartEnd = function() {
if (stream !== null) {
stream.end();
stream = null;
}
if (req.buffer_exceeded)
return;
if (tmp.isFile) {
req.data.files.push(new HttpFile(tmp.name, tmp.fileName, tmp.fileNameTmp, tmp.fileSize, tmp.contentType, tmp.width, tmp.height));
return;
}
if (onXSS(tmp.value))
isXSS = true;
var temporary = req.data.post[tmp.name];
if (typeof(temporary) === UNDEFINED) {
req.data.post[tmp.name] = tmp.value;
return;
}
if (utils.isArray(temporary)) {
req.data.post[tmp.name].push(tmp.value);
return;
}
temporary = [temporary];
temporary.push(tmp.value);
req.data.post[tmp.name] = temporary;
};
parser.onEnd = function() {
var cb = function() {
if (close > 0) {
setImmediate(cb);
return;
}
if (isXSS) {
req.flags.push('xss');
framework.stats.request.xss++;
}
if (rm !== null)
framework.unlink(rm);
callback();
};
cb();
};
req.on('data', parser.write.bind(parser));
req.on('end', parser.end.bind(parser));
};
/*
Internal function / Parse MIXED data
@req {ServerRequest}
@contentType {String}
@tmpDirectory {String}
@onFile {Function} :: this function is called when is a file downloaded
@callback {Function}
*/
exports.parseMULTIPART_MIXED = function(req, contentType, tmpDirectory, onFile, callback) {
var parser = new MultipartParser();
var boundary = contentType.split(';')[1];
var stream = null;
var tmp = {
name: '',
contentType: '',
fileName: '',
fileNameTmp: '',
fileSize: 0,
isFile: false,
step: 0,
width: 0,
height: 0
};
var ip = req.ip.replace(/\./g, '');
var close = 0;
boundary = boundary.substring(boundary.indexOf('=') + 1);
req.buffer_exceeded = false;
req.buffer_has = true;
parser.initWithBoundary(boundary);
parser.onPartBegin = function() {
tmp.fileSize = 0;
tmp.step = 0;
tmp.isFile = false;
};
parser.onHeaderValue = function(buffer, start, end) {
if (req.buffer_exceeded || tmp.step > 1)
return;
var arr = buffer.slice(start, end).toString(ENCODING).split(';');
if (tmp.step === 1) {
tmp.contentType = arr[0];
tmp.step = 2;
return;
}
if (tmp.step === 0) {
tmp.name = arr[1].substring(arr[1].indexOf('=') + 2);
tmp.name = tmp.name.substring(0, tmp.name.length - 1);
tmp.step = 1;
if (arr.length !== 3)
return;
tmp.fileName = arr[2].substring(arr[2].indexOf('=') + 2);
tmp.fileName = tmp.fileName.substring(0, tmp.fileName.length - 1);
tmp.isFile = true;
tmp.fileNameTmp = utils.combine(tmpDirectory, ip + '-' + new Date().getTime() + '-' + utils.random(100000) + '.upload');
stream = fs.createWriteStream(tmp.fileNameTmp, {
flags: 'w'
});
stream.on('close', function() {
close--;
});
stream.on('error', function() {
close--;
});
close++;
return;
}
};
parser.onPartData = function(buffer, start, end) {
var data = buffer.slice(start, end);
var length = data.length;
if (!tmp.isFile)
return;
if (tmp.fileSize === 0) {
var wh = null;
switch (tmp.contentType) {
case 'image/jpeg':
wh = require('./image').measureJPG(data);
break;
case 'image/gif':
wh = require('./image').measureGIF(data);
break;
case 'image/png':
wh = require('./image').measurePNG(data);
break;
}
if (wh) {
tmp.width = wh.width;
tmp.height = wh.height;
}
}
stream.write(data);
tmp.fileSize += length;
};
parser.onPartEnd = function() {
if (stream !== null) {
stream.end();
stream = null;
}
if (!tmp.isFile)
return;
onFile(new HttpFile(tmp.name, tmp.fileName, tmp.fileNameTmp, tmp.fileSize, tmp.contentType, tmp.width, tmp.height));
};
parser.onEnd = function() {
var cb = function cb() {
if (close > 0) {
setImmediate(cb);
return;
}
onFile(null);
callback();
};
cb();
};
req.on('data', parser.write.bind(parser));
};
/*
Internal function / Split string (url) to array
@url {String}
return {String array}
*/
exports.routeSplit = function(url, noLower) {
if (!noLower)
url = url.toLowerCase();
if (url[0] === '/')
url = url.substring(1);
if (url[url.length - 1] === '/')
url = url.substring(0, url.length - 1);
var arr = url.split('/');
if (arr.length === 1 && arr[0] === '')
arr[0] = '/';
return arr;
};
/*
Internal function / Compare route with url
@route {String array}
@url {String}
@isSystem {Boolean}
return {Boolean}
*/
exports.routeCompare = function(url, route, isSystem, isAsterix) {
var length = url.length;
if (route.length !== length && !isAsterix)
return false;
var skip = length === 1 && url[0] === '/';
for (var i = 0; i < length; i++) {
var value = route[i];
if (!isSystem && isAsterix && typeof(value) === UNDEFINED)
return true;
if (!isSystem && (!skip && value[0] === '{'))
continue;
if (url[i] !== value) {
if (!isSystem)
return isAsterix
return false;
}
}
return true;
};
/*
Internal function / Compare subdomain
@subdomain {String}
@arr {String array}
return {Boolean}
*/
exports.routeCompareSubdomain = function(subdomain, arr) {
if (arr === null || subdomain === null || arr.length === 0)
return true;
return arr.indexOf(subdomain) > -1;
};
/*
Internal function / Compare flags
@arr1 {String array}
@arr2 {String array}
@noLoggedUnlogged {Boolean}
return {Number}
*/
exports.routeCompareFlags = function(arr1, arr2, noLoggedUnlogged) {
var isXSS = false;
var length = arr2.length;
//var LOGGED = 'logged';
//var UNLOGGED = 'unlogged';
var AUTHORIZE = 'authorize';
var UNAUTHORIZE = 'unauthorize';
for (var i = 0; i < length; i++) {
var value = arr2[i];
if (value[0] === '!')
continue;
if (noLoggedUnlogged && (value === AUTHORIZE || value === UNAUTHORIZE))
continue;
var index = arr1.indexOf(value);
if (index === -1 && value === 'xss') {
isXSS = true;
continue;
}
if (value === 'xss')
isXSS = true;
// return value === LOGGED || value === UNLOGGED ? -1 : 0;
if (index === -1)
return value === AUTHORIZE || value === UNAUTHORIZE ? -1 : 0;
}
if (!isXSS && arr1.indexOf('xss') !== -1)
return 0;
return 1;
};
/*
Internal function
@routeUrl {String array}
@route {Controller route}
return {String array}
*/
exports.routeParam = function(routeUrl, route) {
var arr = [];
if (!route || !routeUrl)
return arr;
var length = route.param.length;
if (length === 0)
return arr;
for (var i = 0; i < length; i++) {
var value = routeUrl[route.param[i]];
arr.push(value === '/' ? '' : value);
}
return arr;
};
/*
HttpFile class
@name {String}
@filename {String}
@path {String}
@length {Number}
@contentType {String}
return {HttpFile}
*/
function HttpFile(name, filename, path, length, contentType, width, height) {
this.name = name;
this.filename = filename;
this.length = length;
this.contentType = contentType;
this.path = path;
this.width = width;
this.height = height;
}
/*
Read file to byte array
@filename {String} :: new filename
return {HttpFile}
*/
HttpFile.prototype.copy = function(filename, callback) {
var self = this;
if (!callback) {
fs.createReadStream(self.path).pipe(fs.createWriteStream(filename));
return;
}
var reader = fs.createReadStream(self.path);
var writer = fs.createWriteStream(filename);
reader.on('close', callback);
reader.pipe(writer);
return self;
};
/*
Read file to buffer (SYNC)
return {Buffer}
*/
HttpFile.prototype.readSync = function() {
return fs.readFileSync(this.path);
};
/*
Read file to buffer (ASYNC)
@callback {Function} :: function(error, data);
return {HttpFile}
*/
HttpFile.prototype.read = function(callback) {
var self = this;
fs.readFile(self.path, callback);
return self;
};
/*
Create MD5 hash from a file
@callback {Function} :: function(error, hash);
return {HttpFile}
*/
HttpFile.prototype.md5 = function(callback) {
var self = this;
var md5 = crypto.createHash('md5');
var stream = fs.createReadStream(self.path);
stream.on('data', function(buffer) {
md5.update(buffer);
});
stream.on('error', function(error) {
callback(error, null);
});
stream.on('end', function() {
callback(null, md5.digest('hex'));
});
return self;
};
/*
Get a stream
@options {Object} :: optional
return {Stream}
*/
HttpFile.prototype.stream = function(options) {
var self = this;
return fs.createReadStream(self.path, options);
};
/*
Pipe a stream
@stream {Stream}
@options {Object} :: optional
return {Stream}
*/
HttpFile.prototype.pipe = function(stream, options) {
var self = this;
return fs.createReadStream(self.path, options).pipe(stream, options);
};
/*
return {Boolean}
*/
HttpFile.prototype.isImage = function() {
var self = this;
return self.contentType.indexOf('image/') !== -1;
};
/*
return {Boolean}
*/
HttpFile.prototype.isVideo = function() {
var self = this;
return self.contentType.indexOf('video/') !== -1;
};
/*
return {Boolean}
*/
HttpFile.prototype.isAudio = function() {
var self = this;
return self.contentType.indexOf('audio/') !== -1;
};
/*
@imageMagick {Boolean} :: optional - default false
return {Image} :: look at ./lib/image.js
*/
HttpFile.prototype.image = function(imageMagick) {
var im = imageMagick;
// Not a clean solution because the framework hasn't a direct dependence.
// This is hack :-)
if (typeof(im) === UNDEFINED)
im = framework.config['default-image-converter'] === 'im';
return require('./image').init(this.path, im);
};
// *********************************************************************************
// =================================================================================
// JS CSS + AUTO-VENDOR-PREFIXES
// =================================================================================
// *********************************************************************************
function compile_jscss(css) {
var comments = [];
var beg = 0;
var end = 0;
var tmp = '';
var reg1 = /\n|\s{2,}/g;
var reg2 = /\s?\{\s{1,}/g;
var reg3 = /\s?\}\s{1,}/g;
var reg4 = /\s?\:\s{1,}/g;
var reg5 = /\s?\;\s{1,}/g;
var output = '';
var prepare = function(value) {
return value.replace(reg1, '').replace(reg2, '{').replace(reg3, '}').replace(reg4, ':').replace(reg5, ';').replace(/\s\}/g, '}').replace(/\s\{/g, '{').trim();
};
while (true) {
beg = css.indexOf('/*', beg);
if (beg === -1) {
tmp += css;
break;
}
end = css.indexOf('*/', beg);
if (end === -1)
continue;
comments.push(css.substring(beg, end).trim());
tmp += css.substring(0, beg).trim();
css = css.substring(end + 2);
beg = 0;
}
output = '';
tmp = tmp.trim();
var length = comments.length;
var code = '';
var avp = '@#auto-vendor-prefix#@';
var isAuto = tmp.startsWith(avp);
if (isAuto)
tmp = tmp.replace(avp, '');
for (var i = 0; i < length; i++) {
var comment = comments[i];
// Auto vendor prefixes
if (comment.indexOf('auto') !== -1 && comment.length <= 10) {
isAuto = true;
continue;
}
// Code for evaluating
if (comment.indexOf('var ') !== -1 || comment.indexOf('function ') !== -1)
code += comment.replace('/*', '').replace('*/', '') + '\n\n';
}
beg = 0;
end = 0;
var DELIMITER_UNESCAPE = '+unescape(\'';
var DELIMITER_UNESCAPE_END = '\')';
while (true) {
beg = tmp.indexOf('$');
if (beg === -1) {
output += DELIMITER_UNESCAPE + escape(tmp) + DELIMITER_UNESCAPE_END;
break;
}
output += DELIMITER_UNESCAPE + escape(tmp.substring(0, beg)) + DELIMITER_UNESCAPE_END;
tmp = tmp.substring(beg);
length = tmp.length;
end = 0;
var skipA = 0;
var skipB = 0;
var skipC = 0;
for (var i = 0; i < length; i++) {
if (tmp[i] === '"') {
if (skipA > 0) {
skipA--;
continue;
}
skipA++;
}
if (tmp[i] === '{')
skipC++;
if (tmp[i] === '\'') {
if (skipB > 0) {
skipB--;
continue;
}
skipB++;
}
if (tmp[i] === '}' && skipC > 0) {
skipC--;
continue;
}
if (skipA > 0 || skipB > 0 || skipC > 0)
continue;
if (i === length - 1) {
end = i + 1;
break;
}
if (tmp[i] === ';' || tmp[i] === '}' || tmp[i] === '\n') {
end = i;
break;
}
}
if (end === 0)
continue;
var cmd = tmp.substring(0, end);
tmp = tmp.substring(end);
output += '+' + cmd.substring(1);
beg = 0;
}
var length = output.length;
var compiled = '';
output = code + '\n\n;compiled = \'\'' + output;
eval(output);
if (isAuto)
compiled = autoprefixer(compiled)
return prepare(compiled);
}
/*
Auto vendor prefixer
@value {String} :: Raw CSS
return {String}
*/
function autoprefixer(value) {
// 'box-shadow', 'border-radius'
var prefix = ['appearance', 'column-count', 'column-gap', 'column-rule', 'display', 'transform', 'transform-origin', 'transition', 'user-select', 'animation', 'animation-name', 'animation-duration', 'animation-timing-function', 'animation-delay', 'animation-iteration-count', 'animation-direction', 'animation-play-state', 'opacity', 'background', 'background-image', 'font-smoothing'];
value = autoprefixer_keyframes(value);
var builder = [];
var index = 0;
var property;
// properties
for (var i = 0; i < prefix.length; i++) {
property = prefix[i];
index = 0;
while (index !== -1) {
index = value.indexOf(property, index + 1);
if (index === -1)
continue;
var a = value.indexOf(';', index);
var b = value.indexOf('}', index);
var end = Math.min(a, b);
if (end === -1)
end = Math.max(a, b);
if (end === -1)
continue;
// text-transform
if (property === 'transform' && value.substring(index - 1, index) === '-')
continue;
var css = value.substring(index, end);
end = css.indexOf(':');
if (end === -1)
continue;
if (css.substring(0, end + 1).replace(/\s/g, '') !== property + ':')
continue;
builder.push({
name: property,
property: css
});
}
}
var output = [];
var length = builder.length;
for (var i = 0; i < length; i++) {
var name = builder[i].name;
property = builder[i].property;
var plus = property;
var delimiter = ';';
var updated = plus + delimiter;
if (name === 'opacity') {
var opacity = parseFloat(plus.replace('opacity', '').replace(':', '').replace(/\s/g, ''));
if (isNaN(opacity))
continue;
updated += 'filter:alpha(opacity=' + Math.floor(opacity * 100) + ');';
value = value.replacer(property, '@[[' + output.length + ']]');
output.push(updated);
continue;
}
if (name === 'background' || name === 'background-image') {
if (property.indexOf('linear-gradient') === -1)
continue;
updated = plus.replacer('linear-', '-webkit-linear-') + delimiter;
updated += plus.replacer('linear-', '-moz-linear-') + delimiter;
updated += plus.replacer('linear-', '-o-linear-') + delimiter;
updated += plus.replacer('linear-', '-ms-linear-');
updated += plus + delimiter;
value = value.replacer(property, '@[[' + output.length + ']]');
output.push(updated);
continue;
}
if (name === 'text-overflow') {
updated = plus + delimiter;
updated += plus.replacer('text-overflow', '-ms-text-overflow');
value = value.replacer(property, '@[[' + output.length + ']]');
output.push(updated);
continue;
}
if (name === 'display') {
if (property.indexOf('box') === -1)
continue;
updated = plus + delimiter;
updated += plus.replacer('box', '-webkit-box') + delimiter;
updated += plus.replacer('box', '-moz-box');
value = value.replacer(property, '@[[' + output.length + ']]');
output.push(updated);
continue;
}
updated += '-webkit-' + plus + delimiter;
updated += '-moz-' + plus;
if (name.indexOf('animation') === -1)
updated += delimiter + '-ms-' + plus;
updated += delimiter + '-o-' + plus;
value = value.replacer(property, '@[[' + output.length + ']]');
output.push(updated);
}
length = output.length;
for (var i = 0; i < length; i++)
value = value.replacer('@[[' + i + ']]', output[i]);
output = null;
builder = null;
prefix = null;
return value;
}
function autoprefixer_keyframes(value) {
var builder = [];
var index = 0;
while (index !== -1) {
index = value.indexOf('@keyframes', index + 1);
if (index === -1)
continue;
var counter = 0;
var end = -1;
for (var indexer = index + 10; indexer < value.length; indexer++) {
if (value[indexer] === '{')
counter++;
if (value[indexer] !== '}')
continue;
if (counter > 1) {
counter--;
continue;
}
end = indexer;
break;
}