mongoDB-权限控制

启动服务
D:MongoDBServer3.6in>mongod.exe --dbpath D:MongoDBServer3.6data

扩展

无认证启动：mongod --port 27017 --dbpath /data/db

认证启动：mongod --auth --port 27017 --dbpath /data/db

连接：mongo --port 27017

---

查看MongoDB所有Role定义

$ ./mongo.exe
MongoDB shell version v3.6.5
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.6.5
use admin
switched to db admin
db.getRoles(
    {
      rolesInfo: 1,
      showPrivileges:false,
      showBuiltinRoles: true
    }
)
[
        {
                "role" : "__queryableBackup",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "__system",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "backup",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "clusterAdmin",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "clusterManager",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "clusterMonitor",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "dbAdmin",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "dbAdminAnyDatabase",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "dbOwner",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "enableSharding",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "hostManager",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "read",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "readAnyDatabase",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "readWrite",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "readWriteAnyDatabase",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "restore",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "root",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "userAdmin",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        },
        {
                "role" : "userAdminAnyDatabase",
                "db" : "admin",
                "isBuiltin" : true,
                "roles" : [ ],
                "inheritedRoles" : [ ]
        }
]

创建一个用户（在数据库里新建用户，不指定db默认指向当前db）

创建　db.createUser（用户名，密码，拥有的角色。角色可以写多个）

use test
switched to db test
db.createUser(
   {
     user: "banana",
     pwd: "123456",
     roles: [ "readWrite" ]
   }
)
Successfully added user: { "user" : "banana", "roles" : [ "readWrite" ] }
db.getUsers()
[
    {
        "_id" : "test.banana",
        "user" : "banana",
        "db" : "test",
        "roles" : [
            {
                "role" : "readWrite",
                "db" : "test"
            }
        ]
    }
]

创建一个用户（在admin数据库里新建用户）

（可以写多个role-db组合）

use admin
switched to db admin
db.createUser(
   {
     user: "apple",
     pwd: "qwer",
     roles: [ {role:"read",db:"test"} ]
   }
)
Successfully added user: {
    "user" : "apple",
    "roles" : [
        {
            "role" : "read",
            "db" : "test"
        }
    ]
}
db.getUsers()
[
    {
        "_id" : "admin.apple",
        "user" : "apple",
        "db" : "admin",
        "roles" : [
            {
                "role" : "read",
                "db" : "test"
            }
        ]
    }
]

修改密码

db.changeUserPassword("apple", "niudun")

删除用户（只会删除当前数据库里面的存在的用户）

db.dropUser("apple")
true

 下面测试权限，再创建2个用户

test

use test
switched to db test
db.createUser(
   {
     user: "peach",
     pwd: "taozi",
     roles: [
        {role : "readWrite", db : "test"},
        {role : "readWrite", db : "test2"}
     ]
   }
)
Successfully added user: {
    "user" : "peach",
    "roles" : [
        {
            "role" : "readWrite",
            "db" : "test"
        },
        {
            "role" : "readWrite",
            "db" : "test2"
        }
    ]
}
db.getUsers()
[
    {
        "_id" : "test.banana",
        "user" : "banana",
        "db" : "test",
        "roles" : [
            {
                "role" : "readWrite",
                "db" : "test"
            }
        ]
    },
    {
        "_id" : "test.peach",
        "user" : "peach",
        "db" : "test",
        "roles" : [
            {
                "role" : "readWrite",
                "db" : "test"
            },
            {
                "role" : "readWrite",
                "db" : "test2"
            }
        ]
    }
]

admin

use admin
switched to db admin
db.createUser(
   {
     user: "pineapple",
     pwd: "boluo",
     roles: [ "readWrite", "userAdmin" ]
   }
)
Successfully added user: { "user" : "pineapple", "roles" : [ "readWrite", "userAdmin" ] }
db.getUsers()
[
    {
        "_id" : "admin.apple",
        "user" : "apple",
        "db" : "admin",
        "roles" : [
            {
                "role" : "read",
                "db" : "test"
            }
        ]
    },
    {
        "_id" : "admin.pineapple",
        "user" : "pineapple",
        "db" : "admin",
        "roles" : [
            {
                "role" : "readWrite",
                "db" : "admin"
            },
            {
                "role" : "userAdmin",
                "db" : "admin"
            }
        ]
    }
]

先把服务开启认证重启

D:MongoDBServer3.6in>mongod.exe --auth --dbpath D:MongoDBServer3.6data

 第一种连接方法（先进去再认证）

[d:MongoDBServer3.6in]$ mongo.exe
MongoDB shell version v3.6.5
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.6.5
db.stats()
{
    "ok" : 0,
    "errmsg" : "not authorized on test to execute command { dbstats: 1.0, scale: undefined, $db: "test" }",
    "code" : 13,
    "codeName" : "Unauthorized"
}

你访问之前需要认证

db.auth("banana","123456")
1

 查看数据库状态

db.stats()
{
    "db" : "test",
    "collections" : 2,
    "views" : 0,
    "objects" : 4,
    "avgObjSize" : 73,
    "dataSize" : 292,
    "storageSize" : 32768,
    "numExtents" : 0,
    "indexes" : 2,
    "indexSize" : 32768,
    "fsUsedSize" : 41188569088,
    "fsTotalSize" : 332861009920,
    "ok" : 1
}

查看集合（也可以用show collections）

show tables
aaa
my_collection

查看集合里面的数据（已有的）

db.aaa.find()
{ "_id" : NumberLong(1), "name" : "BBB", "_class" : "com.example.demo.entity.Book" }
{ "_id" : NumberLong(2), "name" : "CCC", "_class" : "com.example.demo.entity.Book" }

切换admin数据库

use admin
switched to db admin
show tables
2018-08-10T12:59:43.551+0800 E QUERY    [thread1] Error: listCollections failed: {
    "ok" : 0,
    "errmsg" : "not authorized on admin to execute command { listCollections: 1.0, filter: {}, $db: "admin" }",
    "code" : 13,
    "codeName" : "Unauthorized"
} :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
DB.prototype._getCollectionInfosCommand@src/mongo/shell/db.js:941:1
DB.prototype.getCollectionInfos@src/mongo/shell/db.js:953:19
DB.prototype.getCollectionNames@src/mongo/shell/db.js:964:16
shellHelper.show@src/mongo/shell/utils.js:842:9
shellHelper@src/mongo/shell/utils.js:739:15
@(shellhelp2):1:1

（可以得出结论：用户存在哪一个数据库，就只能在那一个数据库上认证）

先用Apple认证（因为没有赋予高级角色，所以不能访问高级内容）

db.auth("apple","niudun")
1
show dbs
2018-08-10T13:07:10.786+0800 E QUERY    [thread1] Error: listDatabases failed:{
    "ok" : 0,
    "errmsg" : "not authorized on admin to execute command { listDatabases: 1.0, $db: "admin" }",
    "code" : 13,
    "codeName" : "Unauthorized"
} :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
Mongo.prototype.getDBs@src/mongo/shell/mongo.js:65:1
shellHelper.show@src/mongo/shell/utils.js:849:19
shellHelper@src/mongo/shell/utils.js:739:15
@(shellhelp2):1:1

我们知道这个apple是拥有test的读取权限的，但是它却存储在admin里，我们用它访问test试试

use admin
switched to db admin
db.auth("apple","niudun")
1
use test
switched to db test
show tables
aaa
my_collection
db.aaa.find()
{ "_id" : NumberLong(1), "name" : "BBB", "_class" : "com.example.demo.entity.Book" }
{ "_id" : NumberLong(2), "name" : "CCC", "_class" : "com.example.demo.entity.Book" }

我们还有一个pineapple，没有与test的联系，看他能不能访问

use admin
switched to db admin
db.auth("pineapple","boluo")
1
use test
switched to db test
show tables
2018-08-10T13:51:49.650+0800 E QUERY    [thread1] Error: listCollections failed: {
    "ok" : 0,
    "errmsg" : "not authorized on test to execute command { listCollections: 1.0, filter: {}, $db: "test" }",
    "code" : 13,
    "codeName" : "Unauthorized"
} :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
DB.prototype._getCollectionInfosCommand@src/mongo/shell/db.js:941:1
DB.prototype.getCollectionInfos@src/mongo/shell/db.js:953:19
DB.prototype.getCollectionNames@src/mongo/shell/db.js:964:16
shellHelper.show@src/mongo/shell/utils.js:842:9
shellHelper@src/mongo/shell/utils.js:739:15
@(shellhelp2):1:1

 那么暂时得出结论：创建在admin里面的用户，如果赋予访问其他数据库的权限，则在admin上通过认证之后，可以访问它权限范围内的数据库；否则不能。

 那么普通数据库呢？

use test
switched to db test
db.auth("peach","taozi")
1
db.stats()
{
    "db" : "test",
    "collections" : 2,
    "views" : 0,
    "objects" : 4,
    "avgObjSize" : 73,
    "dataSize" : 292,
    "storageSize" : 32768,
    "numExtents" : 0,
    "indexes" : 2,
    "indexSize" : 32768,
    "fsUsedSize" : 41192714240,
    "fsTotalSize" : 332861009920,
    "ok" : 1
}
use test2
switched to db test2
show tables
bbb
db.bbb.find()
{ "_id" : ObjectId("5b6d29e778212a9cb2bbd958"), "name" : "test2.bbb.data" }

这个peach用户拥有对test2数据库的访问权限。那么说：无论admin还是普通数据库，只要对创建的用户赋予访问其它数据库的权限，都是可以访问的。

如果说，我不想去指定用户能不能访问某个数据库，用户也可以访问。那可以通过赋予高级权限来搞定

// 这里的pineapple拥有创建用户权限，所以这里可以直接创建新用户并赋予权限
use admin
switched to db admin
db.auth("pineapple","boluo")
1
db.createUser(
   {
     user: "peach",
     pwd: "taozi",
     roles: ["dbAdminAnyDatabase"]
   }
)
Successfully added user: { "user" : "peach", "roles" : [ "dbAdminAnyDatabase" ] }
db.getUsers()
[
    {
        "_id" : "admin.apple",
        "user" : "apple",
        "db" : "admin",
        "roles" : [
            {
                "role" : "read",
                "db" : "test"
            }
        ]
    },
    {
        "_id" : "admin.peach",
        "user" : "peach",
        "db" : "admin",
        "roles" : [
            {
                "role" : "dbAdminAnyDatabase",
                "db" : "admin"
            }
        ]
    },
    {
        "_id" : "admin.pineapple",
        "user" : "pineapple",
        "db" : "admin",
        "roles" : [
            {
                "role" : "readWrite",
                "db" : "admin"
            },
            {
                "role" : "userAdmin",
                "db" : "admin"
            }
        ]
    }
]
db.auth("peach","taozi")
1
use test
switched to db test
show tables
aaa
my_collection
use test2
switched to db test2
show tables
bbb

无意间又发现：不同数据库的用户即使相同，它们之间也互不影响！因为我的peach用户在test数据库也有了,admin中也有。

大概就这么多，有新的会补上

第二种连接方法（登录的时候就认证）

mongo.exe --port 27017 -u "用户名" -p "密码" --authenticationDatabase "认证数据库"

..

[d:MongoDBServer3.6in]$ mongo.exe --port 27017 -u "peach" -p "taozi" --authenticationDatabase "admin"
MongoDB shell version v3.6.5
connecting to: mongodb://127.0.0.1:27017/
MongoDB server version: 3.6.5
db.stats()
{
    "db" : "test",
    "collections" : 2,
    "views" : 0,
    "objects" : 4,
    "avgObjSize" : 73,
    "dataSize" : 292,
    "storageSize" : 32768,
    "numExtents" : 0,
    "indexes" : 2,
    "indexSize" : 32768,
    "fsUsedSize" : 41195212800,
    "fsTotalSize" : 332861009920,
    "ok" : 1
}
2018-08-10T14:42:32.210+0800 I CONTROL  [thread2] CTRL_CLOSE_EVENT signal
2018-08-10T14:42:32.210+0800 I CONTROL  [consoleTerminate] got CTRL_CLOSE_EVENT, will terminate after current cmd ends
2018-08-10T14:42:32.211+0800 I CONTROL  [consoleTerminate] shutting down with code:12

[d:MongoDBServer3.6in]$ mongo.exe --port 27017 -u "pineapple" -p "boluo" --authenticationDatabase "admin"
MongoDB shell version v3.6.5
connecting to: mongodb://127.0.0.1:27017/
MongoDB server version: 3.6.5
db.stats()
{
    "ok" : 0,
    "errmsg" : "not authorized on test to execute command { dbstats: 1.0, scale: undefined, $db: "test" }",
    "code" : 13,
    "codeName" : "Unauthorized"
}

我先用peach登录，因为它拥有所有数据库的权限，所以默认进来test，可以直接访问的。然而我用pineapple登录，它仅仅拥有admin的权限，所以进来test是不能访问的。

我想说什么呢，我以为会自动进入你输入的认证数据库，结果不是。

最后总结一下用到的命令

命令	说明
mongod.exe --auth --dbpath D:MongoDBServer3.6data	启动服务（认证状态）
use [db]	切换数据库，不存在即创建
show dbs	查看数据库列表
db.dropDatabase()	删除当前数据库
db.stats()	查看数据库状态信息
show tables/collections	查看当前数据库里的表（集合）
mongo.exe --port 27017 -u "peach" -p "taozi" --authenticationDatabase "admin"	以用户名密码认证登录
use admin db.createUser( { user: "peach", pwd: "taozi", roles: [ { role: "readWrite", db: "test" }, "userAdmin" ] } )	创建用户，可以指定role-db。只有role-默认当前数据库
use admin    db.changeUserPassword("peach", "123")	修改密码。当前数据库下的已存在的用户
use admin    db.dropUser("peach")	删除用户
db.dropAllUsers()	删除所有用户
use admin    db.getUser("peach")	获取用户信息
use admin    db.getUsers()	获取所有用户
use admin    db.auth("peach", "123" )	认证
db.collection.find()	列出集合里面的数据
db.collection.dataSize()	集合大小
db.collection.drop()	删除集合
db.collection.insert( { item: "card", qty: 15 } )	添加数据

概念对比：