1 /*
2  Copyright (c) 2013 yvt, learn_more
3 
4  This file is part of OpenSpades.
5 
6  OpenSpades is free software: you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
10 
11  OpenSpades is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  GNU General Public License for more details.
15 
16  You should have received a copy of the GNU General Public License
17  along with OpenSpades.  If not, see <http://www.gnu.org/licenses/>.
18 
19  */
20 
21 #include <enet/enet.h>
22 #include <regex>
23 
24 #include "ServerAddress.h"
25 
26 namespace spades {
27 
28 	// unsigned long version of atol, cross-platform (including MSVC)
ParseIntegerAddress(const std::string & str)29 	uint32_t ServerAddress::ParseIntegerAddress(const std::string &str) {
30 		uint32_t vl = 0;
31 		for (size_t i = 0; i < str.size(); i++) {
32 			char c = str[i];
33 			if (c >= '0' && c <= '9') {
34 				vl *= 10;
35 				vl += (uint32_t)(c - '0');
36 			} else {
37 				break;
38 			}
39 		}
40 
41 		return vl;
42 	}
43 
ServerAddress(std::string address,ProtocolVersion version)44 	ServerAddress::ServerAddress(std::string address, ProtocolVersion version)
45 	: mAddress(address), mVersion(version) {
46 		static std::regex v075regex {"(.*):0?\\.?75"};
47 		static std::regex v076regex {"(.*):0?\\.?76"};
48 
49 		std::smatch matchResult;
50 
51 		if (std::regex_match(address, matchResult, v075regex)) {
52 			version = ProtocolVersion::v075;
53 			mAddress = matchResult[1];
54 		} else if (std::regex_match(address, matchResult, v076regex)) {
55 			version = ProtocolVersion::v076;
56 			mAddress = matchResult[1];
57 		}
58 	}
59 
StripProtocol(const std::string & address)60 	std::string ServerAddress::StripProtocol(const std::string &address) {
61 		if (address.find("aos:///") == 0) {
62 			return address.substr(7);
63 		} else if (address.find("aos://") == 0) {
64 			return address.substr(6);
65 		}
66 		return address;
67 	}
68 
GetENetAddress() const69 	ENetAddress ServerAddress::GetENetAddress() const {
70 		std::string address = StripProtocol(mAddress);
71 
72 		ENetAddress addr;
73 		size_t pos = address.find(':');
74 		if (pos == std::string::npos) {
75 			// addr = address;
76 			addr.port = 32887;
77 		} else {
78 			addr.port = atoi(address.substr(pos + 1).c_str());
79 			address = address.substr(0, pos);
80 		}
81 
82 		if (address.find('.') != std::string::npos) {
83 			enet_address_set_host(&addr, address.c_str());
84 		} else {
85 			addr.host = ParseIntegerAddress(address);
86 		}
87 		return addr;
88 	}
89 
ToString(bool includeProtocol) const90 	std::string ServerAddress::ToString(bool includeProtocol) const {
91 		if (!includeProtocol) {
92 			return StripProtocol(mAddress);
93 		}
94 		return mAddress;
95 	}
96 
97 }; // namespace spades
98