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annotate rlgterm.js @ 47:27b7f0c8b9f0

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RLG-Web: make login sessions time out. After enough inactivity, log the user out automatically.
author John "Elwin" Edwards <elwin@sdf.org>
date Sat, 09 Jun 2012 21:20:14 -0700
parents 59ecd99845eb
children 2eda3909f6a3
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bd412f63ce0d Put this project under version control, finally.
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1 /* rlgterm.js: Roguelike Gallery's driver for termemu.js */
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2
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3 // A state machine that keeps track of polling the server.
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4 var ajaxstate = {
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5 state: 0,
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6 timerID: null,
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7 clear: function () {
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8 if (this.timerID != null) {
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9 window.clearTimeout(this.timerID);
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10 this.timerID = null;
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11 }
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12 },
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13 set: function (ms) {
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14 this.clear();
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15 this.timerID = window.setTimeout(getData, ms);
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16 },
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17 gotdata: function () {
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18 this.set(1000);
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19 this.state = 1;
0
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20 },
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21 gotnothing: function () {
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22 if (this.state == 0) {
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23 this.set(1000);
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24 this.state = 1;
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25 }
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26 else if (this.state < 4) {
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27 this.set(4000);
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28 this.state++;
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29 }
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30 else if (this.state < 8) {
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31 this.set(15000);
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32 this.state++;
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33 }
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34 else {
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35 /* It's been over a minute. Stop polling. */
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36 this.clear();
0
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37 }
35
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38 },
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39 posted: function (wasdata) {
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40 if (wasdata) {
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41 this.set(1000);
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42 this.state = 1;
0
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43 }
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44 else {
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45 this.set(200);
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46 this.state = 0;
0
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47 }
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48 }
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49 };
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50
44
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51 /* Data on the available games. */
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52 var games = {
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53 "rogue3": {
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54 "name": "Rogue V3",
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55 "uname": "rogue3"
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56 },
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57 "rogue4": {
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58 "name": "Rogue V4",
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59 "uname": "rogue4"
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60 },
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61 "rogue5": {
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62 "name": "Rogue V5",
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63 "uname": "rogue5"
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64 },
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65 "srogue": {
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66 "name": "Super-Rogue",
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67 "uname": "srogue"
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68 }
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69 };
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70
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71 /* Login name and key */
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72 var lname = null;
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73 var lcred = null;
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74
0
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75 function writeData(hexstr) {
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76 var codenum;
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77 var codes = [];
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78 var nc;
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79 var u8wait = 0; /* Stores bits from previous bytes of multibyte sequences. */
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80 var expect = 0; /* The number of 10------ bytes expected. */
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81 /* UTF-8 translation. */
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82 for (var i = 0; i < hexstr.length; i += 2) {
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83 nc = Number("0x" + hexstr.substr(i, 2));
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