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
|
/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/db/auth/user_name.h"
#include <algorithm>
#include <iostream>
#include <string>
#include "mongo/db/auth/authorization_manager.h"
#include "mongo/util/assert_util.h"
namespace mongo {
/**
* Don't change the logic of this function as it will break stable API version 1.
*/
StatusWith<UserName> UserName::parse(StringData userNameStr) {
size_t splitPoint = userNameStr.find('.');
if (splitPoint == std::string::npos) {
return Status(ErrorCodes::BadValue,
"username must contain a '.' separated database.user pair");
}
StringData userDBPortion = userNameStr.substr(0, splitPoint);
StringData userNamePortion = userNameStr.substr(splitPoint + 1);
return UserName(userNamePortion, userDBPortion);
}
/**
* Don't change the logic of this function as it will break stable API version 1.
*/
UserName UserName::parseFromVariant(const stdx::variant<std::string, BSONObj>& helloUserName) {
if (stdx::holds_alternative<std::string>(helloUserName)) {
return uassertStatusOK(parse(stdx::get<std::string>(helloUserName)));
}
return parseFromBSONObj(stdx::get<BSONObj>(helloUserName));
}
/**
* Don't change the logic of this function as it will break stable API version 1.
*/
UserName UserName::parseFromBSONObj(const BSONObj& obj) {
std::bitset<2> usedFields;
constexpr auto kUserNameFieldName = AuthorizationManager::USER_NAME_FIELD_NAME;
constexpr auto kUserDbFieldName = AuthorizationManager::USER_DB_FIELD_NAME;
constexpr size_t kUserNameFieldBit = 0;
constexpr size_t kUserDbFieldBit = 1;
StringData userName, userDb;
for (const auto& element : obj) {
const auto fieldName = element.fieldNameStringData();
uassert(ErrorCodes::BadValue,
str::stream() << "username must contain a string field named: " << fieldName,
element.type() == String);
if (fieldName == kUserNameFieldName) {
uassert(ErrorCodes::BadValue,
str::stream() << "username has more than one field named: "
<< kUserNameFieldName,
!usedFields[kUserNameFieldBit]);
usedFields.set(kUserNameFieldBit);
userName = element.valueStringData();
} else if (fieldName == kUserDbFieldName) {
uassert(ErrorCodes::BadValue,
str::stream() << "username has more than one field named: " << kUserDbFieldName,
!usedFields[kUserDbFieldBit]);
usedFields.set(kUserDbFieldBit);
userDb = element.valueStringData();
} else {
uasserted(ErrorCodes::BadValue,
str::stream() << "username contains an unknown field named: '" << fieldName);
}
}
uassert(ErrorCodes::BadValue,
str::stream() << "username must contain a field named: " << kUserNameFieldName,
usedFields[kUserNameFieldBit]);
uassert(ErrorCodes::BadValue,
str::stream() << "username must contain a field named: " << kUserDbFieldName,
usedFields[kUserDbFieldBit]);
return UserName(userName, userDb);
}
UserName UserName::parseFromBSON(const BSONElement& elem) {
if (elem.type() == String) {
return uassertStatusOK(UserName::parse(elem.valueStringData()));
} else if (elem.type() == Object) {
const auto obj = elem.embeddedObject();
return parseFromBSONObj(obj);
} else {
uasserted(ErrorCodes::BadValue, "username must be either a string or an object");
}
}
void UserName::serializeToBSON(StringData fieldName, BSONObjBuilder* bob) const {
BSONObjBuilder sub(bob->subobjStart(fieldName));
appendToBSON(&sub);
}
void UserName::serializeToBSON(BSONArrayBuilder* bab) const {
BSONObjBuilder sub(bab->subobjStart());
appendToBSON(&sub);
}
/**
* Don't change the logic of this function as it will break stable API version 1.
*/
void UserName::appendToBSON(BSONObjBuilder* bob) const {
*bob << AuthorizationManager::USER_NAME_FIELD_NAME << getUser()
<< AuthorizationManager::USER_DB_FIELD_NAME << getDB();
}
/**
* Don't change the logic of this function as it will break stable API version 1.
*/
BSONObj UserName::toBSON() const {
BSONObjBuilder ret;
appendToBSON(&ret);
return ret.obj();
}
} // namespace mongo
|