summaryrefslogtreecommitdiffstats
path: root/Core/web_chat.lua
blob: dfb17091e353ada89cac3e64c7f403b309c49bf3 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
local CHAT_HISTORY = 50
local LastMessageID = 0

local JavaScript = [[
	<script type="text/javascript">
		function createXHR() 
		{
			var request = false;
			try {
				request = new ActiveXObject('Msxml2.XMLHTTP');
			}
			catch (err2) {
				try {
					request = new ActiveXObject('Microsoft.XMLHTTP');
				}
				catch (err3) {
					try {
						request = new XMLHttpRequest();
					}
					catch (err1) {
						request = false;
					}
				}
			}
			return request;
		}
		
		function OpenPage( url, postParams, callback ) 
		{
			var xhr = createXHR();
			xhr.onreadystatechange=function()
			{ 
				if (xhr.readyState == 4)
				{
					callback( xhr )
				} 
			}; 
			xhr.open( (postParams!=null)?"POST":"GET", url , true);
			if( postParams != null )
			{
				xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
			}
			xhr.send(postParams); 
		}

		function LoadPageInto( url, postParams, storage ) 
		{
			OpenPage( url, postParams, function( xhr ) 
			{
				var ScrollBottom = storage.scrollTop + storage.offsetHeight;
				var bAutoScroll = (ScrollBottom >= storage.scrollHeight); // Detect whether we scrolled to the bottom of the div
				
				results = xhr.responseText.split("<<divider>>");
				if( results[2] != LastMessageID ) return; // Check if this message was meant for us
				
				LastMessageID = results[1];
				if( results[0] != "" )
				{
					storage.innerHTML += results[0];
					
					if( bAutoScroll == true )
					{
						storage.scrollTop = storage.scrollHeight;
					}
				}
			} );
			
			
			return false;
		}
		
		function SendChatMessage() 
		{
			var MessageContainer = document.getElementById('ChatMessage');
			if( MessageContainer.value == "" ) return;
			
			var postParams = "ChatMessage=" + MessageContainer.value;
			OpenPage( "/~webadmin/Core/Chat/", postParams, function( xhr ) 
			{
				RefreshChat();
			} );
			MessageContainer.value = "";
		}
		
		function RefreshChat() 
		{
			var postParams = "JustChat=true&LastMessageID=" + LastMessageID;
			LoadPageInto("/~webadmin/Core/Chat/", postParams, document.getElementById('ChatDiv'));
		}
		
		setInterval(RefreshChat, 1000);
		window.onload = RefreshChat;
		
		var LastMessageID = 0;
		
	</script>
]]

local ChatLogMessages = {}

function AddMessage( PlayerName, Message )
	LastMessageID = LastMessageID + 1
	table.insert( ChatLogMessages, { name = PlayerName, message = Message, id = LastMessageID } )
	while( #ChatLogMessages > CHAT_HISTORY ) do
		table.remove( ChatLogMessages, 1 )
	end
end

function OnChat( Player, Message )
	AddMessage( Player:GetName(), Message )
end
		
function HandleRequest_Chat( Request )
	if( Request.PostParams["JustChat"] ~= nil ) then
		local LastIdx = 0
		if( Request.PostParams["LastMessageID"] ~= nil ) then LastIdx = tonumber( Request.PostParams["LastMessageID"] ) end
		local Content = ""
		for key, value in pairs(ChatLogMessages) do 
			if( value.id > LastIdx ) then
				Content = Content .. "[" .. value.name .. "]: " .. value.message .. "<br>"
			end
		end
		Content = Content .. "<<divider>>" .. LastMessageID .. "<<divider>>" .. LastIdx
		return Content
	end
	
	if( Request.PostParams["ChatMessage"] ~= nil ) then
		if( Request.PostParams["ChatMessage"] == "/help" ) then
			Commands = "Available commands"
			AddMessage(Commands, "<br>" .. "/help, /reload" )
			return Commands
		elseif( Request.PostParams["ChatMessage"] == "/reload" ) then
			Server = cRoot:Get():GetServer()
			Server:SendMessage( cChatColor.Green .. "Reloading all plugins." )
			AddMessage("Reloading all plugins", "")
			cRoot:Get():GetPluginManager():ReloadPlugins()
			return ""
		else
			cmd = Request.PostParams["ChatMessage"]
			if string.sub(cmd,1,string.len("/")) == "/" then
				AddMessage('Unknown Command "' .. Request.PostParams["ChatMessage"] .. '"', "")
				return ""
			end
		end
		local Message = "[WebAdmin]: " .. Request.PostParams["ChatMessage"]
		cRoot:Get():GetServer():SendMessage( Message )
		AddMessage("WebAdmin", Request.PostParams["ChatMessage"] )
		return ""
	end

	local Content = JavaScript
	Content = Content .. [[
	<div style="font-family: Courier; border: 1px solid #DDD; padding: 10px; width: 97%; height: 200px; overflow: scroll;" id="ChatDiv"></div>
	<input type="text" id="ChatMessage" onKeyPress="if (event.keyCode == 13) { SendChatMessage(); }"><input type="submit" value="Submit" onClick="SendChatMessage();">
	]]
	return Content
end