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364 lines
12 KiB
364 lines
12 KiB
'use strict';
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var tz_offset = 240; //subtract this from server time to get local time; 4hrs is 240; 5hrs is 300
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//TODO: handle tz_offset not divisible by 60
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//var selected_date_s = null;
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//selected_date_s = "2018-05-08";
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var express = require('express'),
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//var exphbs = require("express-handlebars");
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// exphbs = require('../../'); // "express-handlebars"
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cookieParser = require('cookie-parser'),
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bodyParser = require('body-parser'),
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//session = require('express-session'),
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fs = require('fs'),
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readlines = require('n-readlines');
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const os = require('os');
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var app = express();
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//app.engine('handlebars', exphbs({defaultLayout: 'main'}));
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//app.set('view engine', 'handlebars');
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var players = [];
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var player_indices = {};
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//see https://developer.mozilla.org/en-US/docs/Learn/Server-side/Express_Nodejs/Introduction
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var prev_line = null;
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//#region derived from mtsenliven.py
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var msgprefix_flags = ["WARNING[Server]: ", "ACTION[Server]: "]
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var msgprefix_lists = {} // where flag is key
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var mf_len = msgprefix_flags.length;
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for (var mf_i=0; mf_i<mf_len; mf_i++) {
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msgprefix_lists[msgprefix_flags[mf_i]] = [];
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}
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var non_unique_wraps = [];
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non_unique_wraps.push({
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"opener":"active block modifiers took ",
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"closer":"ms (longer than 200ms)"
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});
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var unique_flags = [
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"leaves game",
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"joins game"
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];
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//#endregion derived from mtsenliven.py
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function process_logline(line, line_number, selected_date_s) {
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//TODO: use store_unique_log_data instead of this function
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var player_name = null;
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var verb = "";
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var time_s = "";
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var date_s = "";
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var player_ip = null;
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const time_start_i = 11;
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var uf_len = unique_flags.length;
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mf_len = msgprefix_flags.length;
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var verb_i = -1;
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var verb_number = -1;
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var msgprefix_i = -1;
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var msgprefix_number = -1;
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var msgprefix = null;
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var index_msg = "";
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for (var mf_i=0; mf_i<mf_len; mf_i++) {
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msgprefix_i = line.indexOf(msgprefix_flags[mf_i]);
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if (msgprefix_i > -1) {
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msgprefix_number = mf_i;
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msgprefix = msgprefix_flags[mf_i];
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break;
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}
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}
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var skip_date_enable = false;
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for (var uf_i=0; uf_i<uf_len; uf_i++) {
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verb_i = line.indexOf(unique_flags[uf_i]);
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if (verb_i > -1) {
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verb_number = uf_i;
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verb = unique_flags[uf_i];
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date_s = line.substring(0,10).trim();
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if (selected_date_s==null || selected_date_s==date_s) {
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//console.log("(verbose message in process_logline) using '" + date_s + "' since selected '"+selected_date_s+"'");
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time_s = line.substring(time_start_i, time_start_i+8);
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//console.log("using time "+time_s);
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if (msgprefix!=null) {
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player_name = line.substring(msgprefix_i+msgprefix.length, verb_i).trim();
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var ip_flag = " [";
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var ip_i = player_name.indexOf(ip_flag);
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if (ip_i > -1) {
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player_ip = player_name.substring(ip_i+ip_flag.length, player_name.length-1);
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player_name = player_name.substring(0,ip_i);
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}
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}
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else {
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player_name = "<missing msgprefix&rt;";
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}
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}
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else {
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skip_date_enable = true;
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//console.log("WARNING in process_logline: skipping '" + date_s + "' since not '"+selected_date_s+"'");
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}
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break;
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}
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}
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var index = -1; // player index
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if (player_name != null) {
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if (player_name.length > 0) {
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if (player_indices.hasOwnProperty(player_name)) {
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index = player_indices[player_name];
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index_msg = "cached ";
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}
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else {
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index = players.length;
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//players.push({});
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players[index] = {};
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players[index].display_name = player_name;
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player_indices[player_name] = index;
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//console.log("created new index "+index);
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}
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}
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else {
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console.log("WARNING in process_logline: zero-length player name");
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}
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}
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if (index<0 && !skip_date_enable) {
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//console.log("(verbose message in process_logline) "+index_msg+"index was '"+index+"' but date was good '" + date_s + "' for '"+line+"'");
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}
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if (verb == "leaves game") {
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if (index > -1) {
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players[index].logout_time = time_s;
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}
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}
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else if (verb == "joins game") {
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if (index > -1) {
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//console.log("using index " + index);
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players[index].login_time = time_s;
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}
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}
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}
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function store_unique_log_data(output, line_number, err_flag=false) {
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var ret = "";
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var output_strip = output.trim();
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var u_prefix = "active block modifiers took ";
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var u_suffix = "ms (longer than 200ms)";
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// (out_bytes is bytes)
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var show_enable = true;
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var found_flag = null;
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var f_i = null;
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var always_show_enable = false;
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var msg_msg = "previous message";
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var uf_len = unique_flags.length;
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for (var uf_i=0; uf_i<uf_len; uf_i++) {
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if (output.includes(unique_flags[uf_i])) {
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always_show_enable = true;
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}
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}
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if (!always_show_enable) {
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var mf_len = msgprefix_flags.length;
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for (var mf_i=0; mf_i<mf_len; mf_i++) {
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// such as '2018-02-06 21:08:06: WARNING[Server]: Deprecated call to get_look_yaw, use get_look_horizontal instead'
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// or 2018-02-06 21:08:05: ACTION[Server]: [playereffects] Wrote playereffects data into /home/owner/.minetest/worlds/FCAGameAWorld/playereffects.mt.
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f_i = output.find(msgprefix_flags[mf_i]);
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if (f_i >= 0) {
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found_flag = msgprefix_flags[mf_i];
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break;
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}
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}
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if (found_flag!=null) {
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var sub_msg = output.substring(f_i+flag.length).trim();
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var nuw_len = non_unique_wraps.length;
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for (var nuw_i=0; nuw_i<nuw_len; nuw_i++) {
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//for (wrap in non_unique_wraps) {
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var wrap = non_unique_wraps[nuw_i];
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if (sub_msg.includes(wrap["opener"]) && sub_msg.includes(wrap["closer"])) {
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sub_msg = wrap["opener"] + "..." + wrap["closer"];
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msg_msg = "similar messages";
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break;
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}
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}
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if (msgprefix_lists[found_flag].indexOf(sub_msg) > -1) {
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show_enable = false;
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}
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else {
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msgprefix_lists[found_flag].push(sub_msg);
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}
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}
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}
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if (show_enable) {
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ret = output_strip;
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if (found_flag != null) {
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ret += "\n [ EnlivenMinetest ] " + msg_msg + " will be suppressed";
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}
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}
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return ret;
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}
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var cached_date = null;
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app.get('/', function (req, res) {
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var ret = "";
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ret += '<html><body style="font-family:calibri,sans">';
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// Whenever server starts the following is logged
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// (see also etc/example-input.txt):
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//
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//-------------
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// Separator
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//-------------
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//
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var selected_date_s = null;
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if (req.query.date) selected_date_s = req.query.date
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ret += "assuming minetestserver ran as: " + os.homedir() + "<br/>\n";
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ret += "timezone (tz_offset/60*-1): " + (Math.floor(tz_offset/60)*-1) + "<br/>\n";
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ret += "date (this YYYY-MM-DD filter limits all log processing): " + selected_date_s + "<br/>\n";
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if (selected_date_s==null) {
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ret += '<a href="?date=2018-05-08">2018-05-08</a>';
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}
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if (cached_date!=selected_date_s && selected_date_s!=null) {
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cached_date = selected_date_s;
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players = [];
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player_indices = [];
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var log_paths = [os.homedir() + "/.minetest/debug_archived/2018/05/08.txt", os.homedir() + "/.minetest/debug.txt"];
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var lp_len = log_paths.length;
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for (var lp_i=0; lp_i<lp_len; lp_i++) {
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var this_log_path = log_paths[lp_i];
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console.log("EnlivenMinetest webapp reading '" + this_log_path + "'...");
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var line_number = 1;
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if (fs.existsSync(this_log_path)) {
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//uses n-readlines package: see https://stackoverflow.com/questions/34223065/read-lines-synchronously-from-file-in-node-js
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var liner = new readlines(this_log_path);
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var next = true;
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while (next) {
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next = liner.next();
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if (next!=false) {
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process_logline(next.toString('ascii'), line_number, selected_date_s);
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line_number++;
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}
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}
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}
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else {
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console.log("WARNING: file not found: '" + this_log_path + "' (listing actual archived log folders is not yet implemented, so this is a hard-coded demo folder only on poikilos' server)");
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}
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}
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}
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//see ~/.minetest/debug.txt
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//and logs archived by EnlivenMinetest:
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//~/.minetest/debug_archived/2018/05/08.txt
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ret += `<canvas id="myCanvas" width="100" height="1540"> <!--style="border:1px solid #c3c3c3;">-->
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Your browser does not support the canvas element.
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</canvas>
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<div style="color:gray" id="outputArea">loading...</div>
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<script>
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var start_hour = 0;
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var start_m = start_hour*60;
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var start_s = start_m*60;
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var endbefore_hour = 24;
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var hour_count = endbefore_hour - start_hour;
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var hour_width = 60; // 60 pixels per hour
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var pixels_per_m = hour_width/60.0;
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var pixels_per_s = pixels_per_m/60.0;
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var player_name_width = 100;
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var text_size = 16.0;
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var row_y_offset = text_size * (22.0/16.0); // if 16px font is drawn at (x,16), line at (x,21) is one pixel away from the bottom of the descenders
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var border_y = 0.5; //canvas uses 0.5 as middle of pixel
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var border_start_x = 0.5+player_name_width;
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var border_x = border_start_x;
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var text_y = text_size;
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var text_start_x = 3.5;
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var players = [];
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var stats_html = "";
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var time_area_width = hour_width*hour_count;
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var canvas_w = player_name_width + time_area_width;
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stats_html += '<div>' + hour_count + "hrs * " + hour_width + "px = " + time_area_width + '</div>'
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stats_html += '<div>' + time_area_width + "px + " + player_name_width + "px player name = " + canvas_w + 'px canvas width</div>'
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var outputE = document.getElementById("outputArea");
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outputE.innerHTML = stats_html;`;
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var arrayLength = players.length;
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for (var i = 0; i < arrayLength; i++) {
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ret += 'players[' + i + '] = {};' + "\n";
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ret += 'players[' + i + '].login_time = "' + players[i].login_time + '";' + "\n";
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ret += 'players[' + i + '].logout_time = "' + players[i].logout_time + '";' + "\n";
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ret += 'players[' + i + '].display_name = "' + players[i].display_name + '";' + "\n";
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}
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ret += `var canvas = document.getElementById("myCanvas");
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canvas.width = canvas_w;
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var ctx = canvas.getContext("2d");
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ctx.font = text_size+"px Arial";
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var arrayLength = players.length;
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var text_x;
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var index = -1;`
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ret += 'var tz_offset = ' + tz_offset + ';';
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ret += `for (var i = 0; index < arrayLength; i++) {
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text_x = text_start_x;
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ctx.fillStyle = "#dce5ea";
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ctx.fillRect(0, border_y+1.0, player_name_width, row_y_offset-1.0);
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//ctx.stroke();
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ctx.fillStyle = "#000000";
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ctx.moveTo(0, border_y);
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ctx.strokeStyle = "#000000";
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ctx.lineTo(canvas_w, border_y);
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//ctx.stroke();
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ctx.fillStyle = "#000000";
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if (index==-1) {
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ctx.font = "bold "+text_size+"px Arial";
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ctx.fillText("Name", text_x, text_y);
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ctx.font = text_size+"px Arial";
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text_x = player_name_width+0.5;
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//ctx.fillStyle = "#000000";
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ctx.strokeStyle = "#008000";
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for (var hour=0; hour<endbefore_hour; hour++) {
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ctx.fillStyle = "#B0B0B0";
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ctx.moveTo(text_x, border_y);
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ctx.lineTo(text_x, border_y+row_y_offset-0.5);
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//ctx.stroke();
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ctx.fillText(hour+":00", text_x+3, text_y);
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text_x += hour_width;
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}
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}
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else {
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ctx.fillText(players[index].display_name, text_x, text_y);
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var border_x = border_start_x;
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var login_places = players[index].login_time.split(':');
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if (login_places.length>=3) {
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login_places[0] -= Math.floor(tz_offset/60);
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}
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var logout_places = players[index].logout_time.split(':');
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if (logout_places.length>=3) {
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logout_places[0] -= Math.floor(tz_offset/60);
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}
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var login_second = (+login_places[0]) * 60 * 60 + (+login_places[1]) * 60 + (+login_places[2]);
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var login_m = login_second / 60.0;
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var logout_second = (+logout_places[0]) * 60 * 60 + (+logout_places[1]) * 60 + (+logout_places[2]);
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var logout_m = logout_second / 60.0;
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var left_x = border_x + (login_m-start_m)*pixels_per_m;
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var right_x = border_x + (logout_m-start_m)*pixels_per_m;
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if (right_x<left_x) {
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right_x = canvas_w; //not logged out yet, so end of bar is at end
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}
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ctx.fillStyle = "#FF0000";
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ctx.fillRect(left_x, border_y+(row_y_offset/3.0), right_x-left_x, row_y_offset/3.0);
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ctx.fillStyle = "#000000";
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ctx.fillText(login_places[0]+":"+login_places[1], left_x, text_y-(row_y_offset/3.0));
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ctx.fillStyle = "#808080";
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ctx.fillText(logout_places[0]+":"+logout_places[1], right_x, text_y+(row_y_offset/3.0));
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}
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ctx.stroke();
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text_y += row_y_offset;
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border_y += row_y_offset;
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index++;
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}
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</script>`;
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ret += '</body></html>';
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res.send(ret);
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//res.render('home');
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});
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var server = app.listen(3000, function () {
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//console.log('express-handlebars example server listening on: 3000');
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var host = server.address().address;
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var port = server.address().port;
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console.log("EnlivenMinetest webapp listening at http://%s:%s", host, port);
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});
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