1 
2 /**
3  *    Copyright (C) 2018-present MongoDB, Inc.
4  *
5  *    This program is free software: you can redistribute it and/or modify
6  *    it under the terms of the Server Side Public License, version 1,
7  *    as published by MongoDB, Inc.
8  *
9  *    This program is distributed in the hope that it will be useful,
10  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
11  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  *    Server Side Public License for more details.
13  *
14  *    You should have received a copy of the Server Side Public License
15  *    along with this program. If not, see
16  *    <http://www.mongodb.com/licensing/server-side-public-license>.
17  *
18  *    As a special exception, the copyright holders give permission to link the
19  *    code of portions of this program with the OpenSSL library under certain
20  *    conditions as described in each individual source file and distribute
21  *    linked combinations including the program with the OpenSSL library. You
22  *    must comply with the Server Side Public License in all respects for
23  *    all of the code used other than as permitted herein. If you modify file(s)
24  *    with this exception, you may extend this exception to your version of the
25  *    file(s), but you are not obligated to do so. If you do not wish to do so,
26  *    delete this exception statement from your version. If you delete this
27  *    exception statement from all source files in the program, then also delete
28  *    it in the license file.
29  */
30 
31 #include "mongo/platform/basic.h"
32 
33 #include <iterator>
34 #include <string>
35 #include <vector>
36 
37 #include "mongo/db/jsobj.h"
38 #include "mongo/rpc/command_request.h"
39 #include "mongo/rpc/command_request_builder.h"
40 #include "mongo/unittest/unittest.h"
41 #include "mongo/util/assert_util.h"
42 #include "mongo/util/net/message.h"
43 
44 namespace {
45 
46 using namespace mongo;
47 
TEST(CommandRequest,ParseAllFields)48 TEST(CommandRequest, ParseAllFields) {
49     std::vector<char> opCommandData;
50 
51     using std::begin;
52     using std::end;
53 
54     auto writeString = [&opCommandData](const std::string& str) {
55         opCommandData.insert(end(opCommandData), begin(str), end(str));
56         opCommandData.push_back('\0');
57     };
58 
59     auto writeObj = [&opCommandData](const BSONObj& obj) {
60         opCommandData.insert(end(opCommandData), obj.objdata(), obj.objdata() + obj.objsize());
61     };
62 
63     auto database = std::string{"ookokokokok"};
64     writeString(database);
65 
66     auto commandName = std::string{"baz"};
67     writeString(commandName);
68 
69     BSONObjBuilder commandArgsBob{};
70     commandArgsBob.append("baz", "garply");
71     auto commandArgs = commandArgsBob.done();
72     writeObj(commandArgs);
73 
74     BSONObjBuilder metadataBob{};
75     metadataBob.append("foo", "bar");
76     auto metadata = metadataBob.done();
77     writeObj(metadata);
78 
79     Message toSend;
80     toSend.setData(dbCommand, opCommandData.data(), opCommandData.size());
81 
82     auto opCmd = rpc::ParsedOpCommand::parse(toSend);
83 
84     ASSERT_EQUALS(opCmd.body.firstElementFieldName(), commandName);
85     ASSERT_EQUALS(opCmd.database, database);
86     ASSERT_BSONOBJ_EQ(opCmd.metadata, metadata);
87     ASSERT_BSONOBJ_EQ(opCmd.body, commandArgs);
88 }
89 
TEST(CommandRequest,EmptyCommandObjThrows)90 TEST(CommandRequest, EmptyCommandObjThrows) {
91     std::vector<char> opCommandData;
92 
93     using std::begin;
94     using std::end;
95 
96     auto writeString = [&opCommandData](const std::string& str) {
97         opCommandData.insert(end(opCommandData), begin(str), end(str));
98         opCommandData.push_back('\0');
99     };
100 
101     auto writeObj = [&opCommandData](const BSONObj& obj) {
102         opCommandData.insert(end(opCommandData), obj.objdata(), obj.objdata() + obj.objsize());
103     };
104 
105     auto database = std::string{"someDb"};
106     writeString(database);
107 
108     auto commandName = std::string{"baz"};
109     writeString(commandName);
110 
111     auto commandArgs = BSONObj();
112     writeObj(commandArgs);
113 
114     BSONObjBuilder metadataBob{};
115     metadataBob.append("foo", "bar");
116     auto metadata = metadataBob.done();
117     writeObj(metadata);
118 
119     Message msg;
120     msg.setData(dbCommand, opCommandData.data(), opCommandData.size());
121 
122     ASSERT_THROWS_CODE(rpc::ParsedOpCommand::parse(msg), AssertionException, 39950);
123 }
124 
TEST(CommandRequest,MismatchBetweenCommandNamesThrows)125 TEST(CommandRequest, MismatchBetweenCommandNamesThrows) {
126     std::vector<char> opCommandData;
127 
128     using std::begin;
129     using std::end;
130 
131     auto writeString = [&opCommandData](const std::string& str) {
132         opCommandData.insert(end(opCommandData), begin(str), end(str));
133         opCommandData.push_back('\0');
134     };
135 
136     auto writeObj = [&opCommandData](const BSONObj& obj) {
137         opCommandData.insert(end(opCommandData), obj.objdata(), obj.objdata() + obj.objsize());
138     };
139 
140     auto database = std::string{"someDb"};
141     writeString(database);
142 
143     auto commandName = std::string{"fakeName"};
144     writeString(commandName);
145 
146     auto commandArgs = BSON("realName" << 1);
147     writeObj(commandArgs);
148 
149     BSONObjBuilder metadataBob{};
150     metadataBob.append("foo", "bar");
151     auto metadata = metadataBob.done();
152     writeObj(metadata);
153 
154     Message msg;
155     msg.setData(dbCommand, opCommandData.data(), opCommandData.size());
156 
157     ASSERT_THROWS_CODE(rpc::ParsedOpCommand::parse(msg), AssertionException, 39950);
158 }
159 
160 }  // namespace
161