generator.js

'use strict';
var glob = require("glob");
var async = require("async");
var fs = require("fs");
var p = require("path");
var mu = require('mu2');
var _ = require('lodash');
var EventEmitter2 = require('eventemitter2').EventEmitter2;
var loader = require("./loader");

var Generator = new EventEmitter2({
  wildcard: true
});

Generator.DIR = p.resolve(__dirname, '../platform');

Generator.getTemplatesSync = function () {
  return glob.sync(p.resolve(this.DIR, './**/*.tmpl.*')).map(this.parsePath);
};

Generator.parsePath = function (fullpath) {
  var dir = p.dirname(fullpath);
  var output = p.basename(fullpath).replace('.tmpl', '').replace(/(_)/g, function (match, _, offset, string) {
    return offset > string.lastIndexOf('.') ? '' : '_';
  });
  return {
    fullpath: fullpath,
    fullOutputPath: p.resolve(dir, output),
    dir: dir,
    template: p.basename(fullpath),
    output: output
  };
};

// Based on PHP FILTER_VALIDATE_EMAIL
// See https://fightingforalostcause.net/content/misc/2006/compare-email-regex.php
var unanchoredRegexpString = "(?!(?:(?:\\x22?\\x5C[\\x00-\\x7E]\\x22?)|(?:\\x22?[^\\x5C\\x22]\\x22?)){255,})(?!(?:(?:\\x22?\\x5C[\\x00-\\x7E]\\x22?)|(?:\\x22?[^\\x5C\\x22]\\x22?)){65,}@)(?:(?:[\\x21\\x23-\\x27\\x2A\\x2B\\x2D\\x2F-\\x39\\x3D\\x3F\\x5E-\\x7E]+)|(?:\\x22(?:[\\x01-\\x08\\x0B\\x0C\\x0E-\\x1F\\x21\\x23-\\x5B\\x5D-\\x7F]|(?:\\x5C[\\x00-\\x7F]))*\\x22))(?:\\.(?:(?:[\\x21\\x23-\\x27\\x2A\\x2B\\x2D\\x2F-\\x39\\x3D\\x3F\\x5E-\\x7E]+)|(?:\\x22(?:[\\x01-\\x08\\x0B\\x0C\\x0E-\\x1F\\x21\\x23-\\x5B\\x5D-\\x7F]|(?:\\x5C[\\x00-\\x7F]))*\\x22)))*@(?:(?:(?!.*[^.]{64,})(?:(?:(?:xn--)?[a-z0-9]+(?:-[a-z0-9]+)*\\.){1,126}){1,}(?:(?:[a-z][a-z0-9]*)|(?:(?:xn--)[a-z0-9]+))(?:-[a-z0-9]+)*)|(?:\\[(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){7})|(?:(?!(?:.*[a-f0-9][:\\]]){7,})(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,5})?::(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,5})?)))|(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){5}:)|(?:(?!(?:.*[a-f0-9]:){5,})(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,3})?::(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,3}:)?)))?(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:1[0-9]{2})|(?:[1-9]?[0-9]))(?:\\.(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:1[0-9]{2})|(?:[1-9]?[0-9]))){3}))\\]))";

Generator.getDomainList = function() {
  return loader.getList().map(function (domain) {
    return domain.toLowerCase()
  });
}

Generator.compile = function (fn) {
  var templates = this.getTemplatesSync();
  var list = Generator.getDomainList();
  var listJSON = JSON.stringify(list);
  var listSTR = listJSON.substring(1, listJSON.length - 1);
  var listPHP = listSTR.
    replace(/,/g, " => true,\n    ")
  ;

  mu.clearCache();
  this.emit('loaded:list', list);

  function iter(template, done) {
    var d = '';
    this.emit('compiling:template', template);

    mu
      .compileAndRender(template.fullpath, {
        unanchoredRegexpString: unanchoredRegexpString,
        list: list,
        listSTR: listSTR,
        listJSON: listJSON,
        listPHP: listPHP,
      })
      .on('data', function (data) {
        d += data;
      })
      .on('end', function () {
        this.emit('writing:template', template);
        fs.writeFile(template.fullOutputPath, d, done);
      }.bind(this))
      .on('error', function (err) {
        this.emit('error:template', template, err);
        done(err);
      });
  }

  async.eachLimit(templates, 5, iter.bind(this), fn);
};


module.exports = Generator;