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
158
159
|
/*
* AuthBackendFile.cpp
*
* Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "AuthProviderFile.h"
#include <Core/ConfigEntry.h>
#include <Common/Hash.h>
#include <cstdio>
#include <fstream>
#include <boost/regex.hpp>
namespace Mad {
namespace Modules {
namespace AuthProviderFile {
void AuthProviderFile::readFile(const std::string &name) {
std::ifstream stream(name.c_str());
if(!stream.good()) {
application->logf(Core::Logger::LOG_WARNING, "AuthProviderFile: Can't read file '%s'.", name.c_str());
return;
}
while(stream.good() && !stream.eof()) {
std::string line;
std::getline(stream, line);
if(line.empty())
continue;
static const boost::regex regex("([^:]+):(.+)", boost::regex_constants::perl);
boost::smatch match;
if(!boost::regex_match(line, match, regex)) {
application->logf(Core::Logger::LOG_WARNING, "AuthProviderFile: Malformed line in file '%s'.", name.c_str());
continue;
}
std::string password = match[2].str();
if(filehash.empty()) {
userMap.insert(std::make_pair(match[1].str(), std::vector<boost::uint8_t>(password.begin(), password.end())));
}
else {
std::vector<boost::uint8_t> data;
data.reserve(password.size()/2);
for(size_t c = 0; c < password.size()-1; c += 2) {
char buffer[3] = {password[c], password[c+1], 0};
unsigned char byte;
if(std::sscanf(buffer, "%hhx", &byte) != 1) {
application->logf(Core::Logger::LOG_WARNING, "AuthProviderFile: Malformed hash in file '%s'.", name.c_str());
data.clear();
break;
}
data.push_back(byte);
}
if(!data.empty())
userMap.insert(std::make_pair(match[1].str(), data));
}
}
}
bool AuthProviderFile::handleConfigEntry(const Core::ConfigEntry &entry, bool /*handled*/) {
if(!entry[0].getKey().matches("AuthProviderFile"))
return false;
if(entry[1].empty())
return true;
if(entry[1].getKey().matches("Hash")) {
if(entry[2].empty()) {
filehash = entry[1][0];
if(!Common::Hash::isHashSupported(filehash))
application->logf(Core::Logger::LOG_WARNING, "AuthProviderFile: Unsupported hash '%s'", filehash.c_str());
}
}
else if(entry[1].getKey().matches("File")) {
if(entry[2].empty()) {
files.push_back(entry[1][0]);
}
}
else if(!entry[2].empty())
return false;
return true;
}
void AuthProviderFile::configFinished() {
if(filehash.empty() || boost::algorithm::to_lower_copy(filehash) == "clear") {
hashes = Common::Hash::getHashList();
filehash.clear();
}
else {
hashes.clear();
hashes.push_back(filehash);
}
hashes.push_back("Clear");
for(std::vector<std::string>::iterator file = files.begin(); file != files.end(); ++file)
readFile(*file);
}
bool AuthProviderFile::checkPassword(const std::string &user, const std::vector<boost::uint8_t> &data, const std::string &hash) throw(Core::Exception) {
if((hash.empty() || boost::algorithm::to_lower_copy(hash) == "clear") && !filehash.empty()) {
std::vector<boost::uint8_t> password = getPassword(user, filehash);
std::vector<boost::uint8_t> hashdata = Common::Hash::hash(data, filehash);
return (!password.empty() && hashdata.size() == password.size() && std::equal(hashdata.begin(), hashdata.end(), password.begin()));
}
else {
std::vector<boost::uint8_t> password = getPassword(user, hash);
return (!password.empty() && data.size() == password.size() && std::equal(data.begin(), data.end(), password.begin()));
}
}
std::vector<boost::uint8_t> AuthProviderFile::getPassword(const std::string &user, const std::string &hash) throw(Core::Exception) {
std::map<std::string, std::vector<boost::uint8_t> >::iterator userIt = userMap.find(user);
if(userIt == userMap.end())
return std::vector<boost::uint8_t>();
if(filehash.empty()) {
if(boost::algorithm::to_lower_copy(hash) == "clear")
return userIt->second;
else
return Common::Hash::hash(userIt->second, hash);
}
else if(boost::algorithm::to_lower_copy(filehash) == boost::algorithm::to_lower_copy(hash)) {
return userIt->second;
}
else
throw Core::Exception(Core::Exception::NOT_AVAILABLE);
}
}
}
}
|
