sel.client.util source code

1 /*
2  * Copyright (c) 2017-2020 sel-project
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a copy
5  * of this software and associated documentation files (the "Software"), to deal
6  * in the Software without restriction, including without limitation the rights
7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8  * copies of the Software, and to permit persons to whom the Software is
9  * furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in all
12  * copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20  * SOFTWARE.
21  *
22  */
23 /**
24  * Copyright: 2017-2020 sel-project
25  * License: MIT
26  * Authors: Kripth
27  * Source: $(HTTP github.com/sel-project/sel-client/sel/client/util.d, sel/client/util.d)
28  */
29 module sel.client.util;
30 
31 import std.conv : to;
32 import std.regex : ctRegex, replaceAll;
33 import std.string : strip;
34 import std.traits : Parameters;
35 
36 /**
37  * Server's informations retrieved by a client's ping.
38  */
39 struct Server {
40 
41 	bool valid = false;
42 	
43 	string motd;
44 	string rawMotd;
45 	
46 	uint protocol;
47 	int online, max;
48 	
49 	string favicon;
50 	
51 	ulong ping;
52 	
53 	public this(string motd, uint protocol, int online, int max, ulong ping) {
54 		this.valid = true;
55 		this.motd = motd.replaceAll(ctRegex!"§[0-9a-fk-or]", "").strip;
56 		this.rawMotd = motd;
57 		this.protocol = protocol;
58 		this.online = online;
59 		this.max = max;
60 		this.ping = ping;
61 	}
62 	
63 	public inout string toString() {
64 		if(this.valid) {
65 			return "Server(motd: " ~ this.motd ~ ", protocol: " ~ to!string(this.protocol) ~ ", players: " ~ to!string(this.online) ~ "/" ~ to!string(this.max) ~ ", ping: " ~ to!string(this.ping) ~ " ms)";
66 		} else {
67 			return "Server()";
68 		}
69 	}
70 
71 	alias valid this;
72 	
73 }
74 
75 interface IHandler {
76 
77 	public void handle(ubyte[] buffer);
78 
79 }
80 
81 class Handler(E...) : IHandler { //TODO validate packets
82 
83 	private E handlers;
84 
85 	public this(E handlers) {
86 		this.handlers = handlers;
87 	}
88 
89 	public override void handle(ubyte[] buffer) {
90 		foreach(i, F; E) {
91 			static if(is(typeof(Parameters!F[0].ID))) {
92 				if(Parameters!F[0].ID == buffer[0]) {
93 					this.handlers[i](Parameters!F[0].fromBuffer(buffer));
94 				}
95 			} else static if(is(Parameters!F[0] : ubyte[])) {
96 				this.handlers[i](buffer);
97 			}
98 		}
99 	}
100 
101 }
102 
103 Handler!E handler(E...)(E handlers) {
104 	return new Handler!E(handlers);
105 }