git.scottworley.com Git - reliable-chat/blob - webclient/rc.js

   1 var servers = ['chkno.net', 'rc2.chkno.net', 'echto.net', 'the-wes.com', 'vibrantlogic.com'];
   2
   3 var session = Math.random();
   4 var seen = {};
   5
   6 function rcnick() {
   7         var nick = localStorage.getItem("nick");
   8         if (nick) {
   9                 return nick;
  10         }
  11         return 'anonymous';
  12 }
  13
  14 function rcsetnick(new_nick) {
  15         localStorage.setItem("nick", new_nick);
  16 }
  17
  18 function rcserverbase(server) {
  19         // Add the default port if server doesn't contain a port number already
  20         if (server.indexOf(":") == -1) {
  21                 return "http://" + server + ":21059";
  22         } else {
  23                 return "http://" + server;
  24         }
  25 }
  26
  27 function rcchangeserverstatus(server, new_status) {
  28         var statusbar = document.getElementById("status");
  29         var spans = statusbar.getElementsByTagName("span");
  30         for (i in spans) {
  31                 if (spans[i].firstChild && 'data' in spans[i].firstChild && spans[i].firstChild.data == server) {
  32                         spans[i].setAttribute("class", new_status);
  33                 }
  34         }
  35 }
  36
  37 function rcaddmessagetohistory(message) {
  38         var d = document.createElement("div");
  39         d.appendChild(document.createTextNode(message));
  40         var h = document.getElementById("history");
  41         h.appendChild(d);
  42         window.scrollTo(0, document.body.scrollHeight);
  43         return d;
  44 }
  45
  46 function make_seen_key(id, text) {
  47         return id.replace(/@/g, "@@") + "_@_" + text.replace(/@/g, "@@");
  48 }
  49
  50 function receiveMessage(server, time, id, text) {
  51         var seen_key = make_seen_key(id, text);
  52         if (!(seen_key in seen)) {
  53                 seen[seen_key] = true;
  54                 rcaddmessagetohistory(text);
  55                 for (i in servers) {
  56                         rcchangeserverstatus(servers[i], "sad");
  57                 }
  58         }
  59         rcchangeserverstatus(server, "happy");
  60 }
  61
  62 function receiveMessageEvent(event)
  63 {
  64         for (i in servers) {
  65                 if (event.origin === rcserverbase(servers[i])) {
  66                         messages = JSON.parse(event.data);
  67                         for (j in messages) {
  68                                 if ('Time' in messages[j] &&
  69                                     'ID'   in messages[j] &&
  70                                     'Text' in messages[j]) {
  71                                         receiveMessage(servers[i], messages[j]['Time'], messages[j]['ID'], messages[j]['Text']);
  72                                 }
  73                         }
  74                 }
  75         }
  76 }
  77
  78 function rcconnect() {
  79         window.addEventListener("message", receiveMessageEvent, false);
  80         for (i in servers) {
  81                 // Create a hidden iframe for same-origin workaround
  82                 var iframe = document.createElement("iframe");
  83                 iframe.setAttribute("src", rcserverbase(servers[i]) + "/frame");
  84                 document.body.insertBefore(iframe, document.body.firstChild);
  85                 // Status bar entry
  86                 var status_indicator = document.createElement("span");
  87                 status_indicator.appendChild(document.createTextNode(servers[i]));
  88                 status_indicator.setAttribute("class", "sad");
  89                 document.getElementById("status").appendChild(status_indicator);
  90         }
  91         if (rcnick() == 'anonymous') {
  92                 rcaddmessagetohistory("-!- Set your nick with /nick");
  93         }
  94 }
  95
  96 function rcsend(d, message) {
  97         var id = new Date().getTime() + "-" + session + "-" + Math.random();
  98         seen[make_seen_key(id, message)] = true;
  99         var path = "/speak" +
 100                 "?id=" + encodeURIComponent(id) +
 101                 "&text=" + encodeURIComponent(message);
 102         for (i in servers) {
 103                 var uri = rcserverbase(servers[i]) + path;
 104                 var img = document.createElement("img");
 105                 img.setAttribute("src", uri);
 106                 d.appendChild(img);
 107         }
 108 }
 109
 110 function rckeydown(event) {
 111         if (event.keyCode == 13) {
 112                 var input = document.input.say.value;
 113                 document.input.say.value = "";
 114
 115                 // Check nick change
 116                 var message;
 117                 var re = /^\/nick (.*)/;
 118                 var match = re.exec(input);
 119                 if (match) {
 120                         message = "*** " + rcnick() + " is now known as " + match[1];
 121                         rcsetnick(match[1]);
 122                 } else {
 123                         message = "<" + rcnick() + "> " + input;
 124                 }
 125
 126                 // Remind people to set their nick
 127                 if (rcnick() == 'anonymous') {
 128                         rcaddmessagetohistory("-!- Set your nick with /nick");
 129                 }
 130
 131                 // Say the message
 132                 var d = rcaddmessagetohistory(message);
 133                 rcsend(d, message);
 134         }
 135 }