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var myVersion = "0.48", myProductName = "PagePark";
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//The MIT License (MIT)
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//Copyright (c) 2014 Dave Winer
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//Permission is hereby granted, free of charge, to any person obtaining a copy
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//of this software and associated documentation files (the "Software"), to deal
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//in the Software without restriction, including without limitation the rights
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//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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//copies of the Software, and to permit persons to whom the Software is
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//furnished to do so, subject to the following conditions:
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//The above copyright notice and this permission notice shall be included in all
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//copies or substantial portions of the Software.
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//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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//SOFTWARE.
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var fs = require ("fs");
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var request = require ("request");
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var urlpack = require ("url");
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var http = require ("http");
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var marked = require ("marked");
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var dns = require ("dns");
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var mime = require ("mime"); //1/8/15 by DW
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var folderPathFromEnv = process.env.pageparkFolderPath; //1/3/15 by DW
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var pageparkPrefs = {
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myPort: 80,
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indexFilename: "index"
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};
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var fnamePrefs = "prefs/prefs.json";
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var pageparkStats = {
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ctStarts: 0,
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whenLastStart: new Date (0),
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ctHits: 0, ctHitsToday: 0,
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whenLastHit: new Date (0),
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hitsByDomain: {}
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};
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var fnameStats = "prefs/stats.json", flStatsDirty = false;
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var domainsPath = "domains/";
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var mdTemplatePath = "prefs/mdTemplate.txt";
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var urlDefaultTemplate = "http://fargo.io/code/pagepark/defaultmarkdowntemplate.txt";
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//routines from utils.js, fs.js
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function getBoolean (val) {
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switch (typeof (val)) {
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case "string":
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if (val.toLowerCase () == "true") {
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return (true);
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}
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break;
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case "boolean":
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return (val);
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break;
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case "number":
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if (val != 0) {
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return (true);
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}
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break;
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}
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return (false);
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}
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function isAlpha (ch) {
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return (((ch >= 'a') && (ch <= 'z')) || ((ch >= 'A') && (ch <= 'Z')));
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}
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function isNumeric (ch) {
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return ((ch >= '0') && (ch <= '9'));
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}
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function jsonStringify (jstruct) {
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return (JSON.stringify (jstruct, undefined, 4));
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}
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function secondsSince (when) {
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var now = new Date ();
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when = new Date (when);
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return ((now - when) / 1000);
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}
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function sameDay (d1, d2) { //returns true if the two dates are on the same day
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d1 = new Date (d1);
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d2 = new Date (d2);
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return ((d1.getFullYear () == d2.getFullYear ()) && (d1.getMonth () == d2.getMonth ()) && (d1.getDate () == d2.getDate ()));
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}
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function beginsWith (s, possibleBeginning, flUnicase) {
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if (s.length == 0) { //1/1/14 by DW
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return (false);
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}
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if (flUnicase == undefined) {
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flUnicase = true;
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}
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if (flUnicase) {
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for (var i = 0; i < possibleBeginning.length; i++) {
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if (s [i].toLowerCase () != possibleBeginning [i].toLowerCase ()) {
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return (false);
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}
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}
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}
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else {
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for (var i = 0; i < possibleBeginning.length; i++) {
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if (s [i] != possibleBeginning [i]) {
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return (false);
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}
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}
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}
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return (true);
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}
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function endsWith (s, possibleEnding, flUnicase) {
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if ((s == undefined) || (s.length == 0)) {
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return (false);
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}
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var ixstring = s.length - 1;
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if (flUnicase == undefined) {
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flUnicase = true;
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}
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if (flUnicase) {
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for (var i = possibleEnding.length - 1; i >= 0; i--) {
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if (s [ixstring--].toLowerCase () != possibleEnding [i].toLowerCase ()) {
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return (false);
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}
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}
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}
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else {
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for (var i = possibleEnding.length - 1; i >= 0; i--) {
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if (s [ixstring--] != possibleEnding [i]) {
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return (false);
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}
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}
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}
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return (true);
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}
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function stringDelete (s, ix, ct) {
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var start = ix - 1;
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var end = (ix + ct) - 1;
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var s1 = s.substr (0, start);
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var s2 = s.substr (end);
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return (s1 + s2);
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}
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function stringContains (s, whatItMightContain, flUnicase) {
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if (flUnicase === undefined) {
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flUnicase = true;
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}
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if (flUnicase) {
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s = s.toLowerCase ();
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whatItMightContain = whatItMightContain.toLowerCase ();
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}
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return (s.indexOf (whatItMightContain) != -1);
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}
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function stringCountFields (s, chdelim) {
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var ct = 1;
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if (s.length == 0) {
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return (0);
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}
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for (var i = 0; i < s.length; i++) {
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if (s [i] == chdelim) {
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ct++;
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}
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}
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return (ct)
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}
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function stringNthField (s, chdelim, n) {
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var splits = s.split (chdelim);
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if (splits.length >= n) {
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return splits [n-1];
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}
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return ("");
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}
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function stringLastField (s, chdelim) {
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var ct = stringCountFields (s, chdelim);
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if (ct == 0) { //8/31/14 by DW
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return (s);
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}
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return (stringNthField (s, chdelim, ct));
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}
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function multipleReplaceAll (s, adrTable, flCaseSensitive, startCharacters, endCharacters) {
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if(flCaseSensitive===undefined){
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flCaseSensitive = false;
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}
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if(startCharacters===undefined){
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startCharacters="";
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}
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if(endCharacters===undefined){
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endCharacters="";
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}
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for( var item in adrTable){
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var replacementValue = adrTable[item];
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var regularExpressionModifier = "g";
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if(!flCaseSensitive){
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regularExpressionModifier = "gi";
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}
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var regularExpressionString = (startCharacters+item+endCharacters).replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
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var regularExpression = new RegExp(regularExpressionString, regularExpressionModifier);
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s = s.replace(regularExpression, replacementValue);
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}
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return s;
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}
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function httpExt2MIME (ext) { //12/24/14 by DW
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mime.default_type = "text/plain";
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console.log ("httpExt2MIME: type == " + mime.lookup (ext));
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return (mime.lookup (ext));
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}
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function httpReadUrl (url, callback) {
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request (url, function (error, response, body) {
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if (!error && (response.statusCode == 200)) {
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callback (body)
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}
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});
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}
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function fsSureFilePath (path, callback) {
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var splits = path.split ("/");
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path = ""; //1/8/15 by DW
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if (splits.length > 0) {
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function doLevel (levelnum) {
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if (levelnum < (splits.length - 1)) {
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path += splits [levelnum] + "/";
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fs.exists (path, function (flExists) {
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if (flExists) {
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doLevel (levelnum + 1);
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}
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else {
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fs.mkdir (path, undefined, function () {
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doLevel (levelnum + 1);
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});
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}
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});
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}
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else {
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if (callback != undefined) {
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callback ();
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}
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}
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}
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doLevel (0);
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}
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else {
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if (callback != undefined) {
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callback ();
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}
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}
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}
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function getFullFilePath (relpath) { //1/3/15 by DW
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var folderpath = folderPathFromEnv;
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if (folderpath == undefined) { //the environment variable wasn't specified
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return (relpath);
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}
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if (!endsWith (folderpath, "/")) {
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folderpath += "/";
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}
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if (beginsWith (relpath, "/")) {
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relpath = stringDelete (relpath, 1, 1);
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}
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return (folderpath + relpath);
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}
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function getMarkdownTemplate (callback) {
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var f = getFullFilePath (mdTemplatePath);
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fs.readFile (f, function (err, data) {
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if (err) {
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httpReadUrl (urlDefaultTemplate, function (s) {
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fs.writeFile (mdTemplatePath, s, function (err) {
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if (callback != undefined) {
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callback (s);
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}
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});
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});
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}
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else {
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if (callback != undefined) {
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callback (data.toString ());
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}
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}
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});
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}
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function checkPathForIllegalChars (path) {
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function isIllegal (ch) {
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if (isAlpha (ch) || isNumeric (ch)) {
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return (false);
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}
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switch (ch) {
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case "/": case "_": case "-": case ".": case " ":
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return (false);
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}
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return (true);
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}
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for (var i = 0; i < path.length; i++) {
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if (isIllegal (path [i])) {
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return (false);
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}
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}
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if (stringContains (path, "./")) {
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return (false);
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}
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return (true);
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}
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function everySecond () {
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if (flStatsDirty) {
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writeStats (fnameStats, pageparkStats);
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flStatsDirty = false;
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}
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}
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function handleHttpRequest (httpRequest, httpResponse) {
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function return404 () {
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httpResponse.writeHead (404, {"Content-Type": "text/plain"});
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httpResponse.end ("The file was not found.");
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}
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function findIndexFile (folder, callback) {
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fs.readdir (folder, function (err, list) {
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for (var i = 0; i < list.length; i++) {
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var fname = list [i];
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if (stringCountFields (fname, ".") == 2) { //something like xxx.yyy
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if (stringNthField (fname, ".", 1).toLowerCase () == pageparkPrefs.indexFilename) { //something like index.wtf
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callback (folder + fname);
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return;
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}
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}
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}
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return404 ();
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});
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}
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function serveFile (f) {
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fs.readFile (f, function (err, data) {
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if (err) {
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return404 ();
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}
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else {
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var ext = stringLastField (f, ".").toLowerCase (), type = httpExt2MIME (ext);
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switch (ext) {
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case "js":
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try {
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var val = eval (data.toString ());
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httpResponse.writeHead (200, {"Content-Type": "text/html"});
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httpResponse.end (val.toString ());
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}
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catch (err) {
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httpResponse.writeHead (500, {"Content-Type": "text/plain"});
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httpResponse.end ("Error running " + parsedUrl.pathname + ": \"" + err.message + "\"");
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}
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break;
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case "md":
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getMarkdownTemplate (function (theTemplate) {
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var mdtext = data.toString (), pagetable = new Object ();
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pagetable.bodytext = marked (mdtext);
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pagetable.title = stringLastField (f, "/");
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var s = multipleReplaceAll (theTemplate, pagetable, false, "[%", "%]");
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httpResponse.writeHead (200, {"Content-Type": "text/html"});
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httpResponse.end (s);
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});
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break;
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default:
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httpResponse.writeHead (200, {"Content-Type": type});
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httpResponse.end (data);
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break;
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}
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}
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});
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}
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|
try {
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|
var parsedUrl = urlpack.parse (httpRequest.url, true), host, lowerhost, port, referrer;
|
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|
|
var lowerpath = parsedUrl.pathname.toLowerCase (), now = new Date ();
|
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|
|
//set host, port
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|
host = httpRequest.headers.host;
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|
|
if (stringContains (host, ":")) {
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port = stringNthField (host, ":", 2);
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|
host = stringNthField (host, ":", 1);
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}
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|
else {
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|
port = 80;
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}
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|
|
lowerhost = host.toLowerCase ();
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|
|
//set referrer
|
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|
|
referrer = httpRequest.headers.referer;
|
|
|
|
if (referrer == undefined) {
|
|
|
|
referrer = "";
|
|
|
|
}
|
|
|
|
|
|
|
|
//stats
|
|
|
|
//hits by domain
|
|
|
|
if (pageparkStats.hitsByDomain [lowerhost] == undefined) {
|
|
|
|
pageparkStats.hitsByDomain [lowerhost] = 1;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
pageparkStats.hitsByDomain [lowerhost]++;
|
|
|
|
}
|
|
|
|
//hits today
|
|
|
|
if (!sameDay (now, pageparkStats.whenLastHit)) { //day rollover
|
|
|
|
pageparkStats.ctHitsToday = 0;
|
|
|
|
}
|
|
|
|
pageparkStats.ctHits++;
|
|
|
|
pageparkStats.ctHitsToday++;
|
|
|
|
pageparkStats.whenLastHit = now;
|
|
|
|
flStatsDirty = true;
|
|
|
|
|
|
|
|
//log the request
|
|
|
|
dns.reverse (httpRequest.connection.remoteAddress, function (err, domains) {
|
|
|
|
var client = httpRequest.connection.remoteAddress;
|
|
|
|
if (!err) {
|
|
|
|
if (domains.length > 0) {
|
|
|
|
client = domains [0];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
console.log (now.toLocaleTimeString () + " " + httpRequest.method + " " + host + ":" + port + " " + lowerpath + " " + referrer + " " + client);
|
|
|
|
});
|
|
|
|
|
|
|
|
switch (lowerpath) {
|
|
|
|
case "/version":
|
|
|
|
httpResponse.writeHead (200, {"Content-Type": "text/plain"});
|
|
|
|
httpResponse.end (myVersion);
|
|
|
|
break;
|
|
|
|
case "/now":
|
|
|
|
httpResponse.writeHead (200, {"Content-Type": "text/plain"});
|
|
|
|
httpResponse.end (now.toString ());
|
|
|
|
break;
|
|
|
|
case "/status":
|
|
|
|
var status = {
|
|
|
|
prefs: pageparkPrefs,
|
|
|
|
status: pageparkStats
|
|
|
|
}
|
|
|
|
httpResponse.writeHead (200, {"Content-Type": "text/plain"});
|
|
|
|
httpResponse.end (jsonStringify (status));
|
|
|
|
break;
|
|
|
|
default: //see if it's a path in the domains folder, if not 404
|
|
|
|
var f = getFullFilePath (domainsPath) + host + parsedUrl.pathname;
|
|
|
|
if (checkPathForIllegalChars (f)) {
|
|
|
|
fsSureFilePath (domainsPath, function () { //make sure domains folder exists
|
|
|
|
fs.stat (f, function (err, stats) {
|
|
|
|
if (err) {
|
|
|
|
return404 ();
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
if (stats.isDirectory ()) {
|
|
|
|
if (!endsWith (f, "/")) {
|
|
|
|
f += "/";
|
|
|
|
}
|
|
|
|
findIndexFile (f, function (findex) {
|
|
|
|
serveFile (findex);
|
|
|
|
});
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
serveFile (f);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
});
|
|
|
|
});
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
httpResponse.writeHead (500, {"Content-Type": "text/plain"});
|
|
|
|
httpResponse.end ("The file name contains illegal characters.");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
catch (tryError) {
|
|
|
|
httpResponse.writeHead (500, {"Content-Type": "text/plain"});
|
|
|
|
httpResponse.end (tryError.message);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
function writeStats (fname, stats, callback) {
|
|
|
|
var f = getFullFilePath (fname);
|
|
|
|
fsSureFilePath (f, function () {
|
|
|
|
fs.writeFile (f, jsonStringify (stats), function (err) {
|
|
|
|
if (err) {
|
|
|
|
console.log ("writeStats: error == " + err.message);
|
|
|
|
}
|
|
|
|
if (callback != undefined) {
|
|
|
|
callback ();
|
|
|
|
}
|
|
|
|
});
|
|
|
|
});
|
|
|
|
}
|
|
|
|
function readStats (fname, stats, callback) {
|
|
|
|
var f = getFullFilePath (fname);
|
|
|
|
fsSureFilePath (f, function () {
|
|
|
|
fs.exists (f, function (flExists) {
|
|
|
|
if (flExists) {
|
|
|
|
fs.readFile (f, function (err, data) {
|
|
|
|
if (err) {
|
|
|
|
console.log ("readStats: error reading file " + f + " == " + err.message)
|
|
|
|
if (callback != undefined) {
|
|
|
|
callback ();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
var storedStats = JSON.parse (data.toString ());
|
|
|
|
for (var x in storedStats) {
|
|
|
|
stats [x] = storedStats [x];
|
|
|
|
}
|
|
|
|
writeStats (fname, stats, function () {
|
|
|
|
if (callback != undefined) {
|
|
|
|
callback ();
|
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
writeStats (fname, stats, function () {
|
|
|
|
if (callback != undefined) {
|
|
|
|
callback ();
|
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|
|
|
|
});
|
|
|
|
});
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
function startup () {
|
|
|
|
readStats (fnamePrefs, pageparkPrefs, function () {
|
|
|
|
readStats (fnameStats, pageparkStats, function () {
|
|
|
|
fsSureFilePath (getFullFilePath (domainsPath) + "x", function () { //make sure domains folder exists
|
|
|
|
var now = new Date ();
|
|
|
|
console.log (myProductName + " v" + myVersion + ".");
|
|
|
|
pageparkStats.ctStarts++;
|
|
|
|
pageparkStats.whenLastStart = now;
|
|
|
|
flStatsDirty = true;
|
|
|
|
http.createServer (handleHttpRequest).listen (pageparkPrefs.myPort);
|
|
|
|
setInterval (everySecond, 1000);
|
|
|
|
});
|
|
|
|
});
|
|
|
|
});
|
|
|
|
}
|
|
|
|
startup ();
|