本篇内容主要讲解“怎么使用PostgreSQL的插件postgresql_anonymizer”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“怎么使用PostgreSQL的插件postgresql_anonymizer”吧!
安装
依赖tsm_system_rows和ddlx两个扩展，需提前安装妥当。
[local:/data/pg12]:5432 pg12@testdb=# create extension tsm_system_rows;
CREATE EXTENSION
[local:/data/pg12]:5432 pg12@testdb=# create extension ddlx;
CREATE EXTENSION
[local:/data/pg12]:5432 pg12@testdb=#clone代码，编译安装
[pg12@localhost contrib]$ git clone https://gitlab.com/dalibo/postgresql_anonymizer.git -b 0.5.0
Cloning into 'postgresql_anonymizer'...
remote: Enumerating objects: 2396, done.
remote: Counting objects: 100% (2396/2396), done.
remote: Compressing objects: 100% (854/854), done.
remote: Total 2396 (delta 1524), reused 2379 (delta 1513)
Receiving objects: 100% (2396/2396), 12.85 MiB | 55.00 KiB/s, done.
Resolving deltas: 100% (1524/1524), done.
Note: checking out 'c108008719a1394b55779ff7115f188511c6ec89'.
You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.
If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:
git checkout -b new_branch_name编译安装
[pg12@localhost contrib]$ cd postgresql_anonymizer/
[pg12@localhost postgresql_anonymizer]$ make
mkdir -p anon
cp anon.sql anon/anon--0.5.0.sql
cp data/default/* anon/
gcc -std=gnu99 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -g -O0 -DOPTIMIZER_DEBUG -g3 -gdwarf-2 -fPIC -I. -I./ -I/appdb/pg12/pg12.1/include/postgresql/server -I/appdb/pg12/pg12.1/include/postgresql/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o anon.o anon.c -MMD -MP -MF .deps/anon.Po
gcc -std=gnu99 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Werror=vla -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision=standard -g -O0 -DOPTIMIZER_DEBUG -g3 -gdwarf-2 -fPIC anon.o -L/appdb/pg12/pg12.1/lib -Wl,--as-needed -Wl,-rpath,'/appdb/pg12/pg12.1/lib',--enable-new-dtags -shared -o anon.so
[pg12@localhost postgresql_anonymizer]$ make install
mkdir -p anon
cp anon.sql anon/anon--0.5.0.sql
cp data/default/* anon/
/bin/mkdir -p '/appdb/pg12/pg12.1/share/postgresql/extension'
/bin/mkdir -p '/appdb/pg12/pg12.1/share/postgresql/extension/anon'
/bin/mkdir -p '/appdb/pg12/pg12.1/lib/postgresql'
/bin/install -c -m 644 .//anon.control '/appdb/pg12/pg12.1/share/postgresql/extension/'
/bin/install -c -m 644 .//anon/* '/appdb/pg12/pg12.1/share/postgresql/extension/anon/'
/bin/install -c -m 755 anon.so '/appdb/pg12/pg12.1/lib/postgresql/'
[pg12@localhost postgresql_anonymizer]$体验
创建扩展，添加到加载库中shared_preload_libraries，重启实例
[local:/data/pg12]:5432 pg12@testdb=# CREATE EXTENSION IF NOT EXISTS anon CASCADE;
CREATE EXTENSION
[local:/data/pg12]:5432 pg12@testdb=# alter system set shared_preload_libraries = 'anon';
ALTER SYSTEM
[local:/data/pg12]:5432 pg12@testdb=#
[local:/data/pg12]:5432 pg12@testdb=# exit
[pg12@localhost contrib]$ pg_ctl restart
waiting for server to shut down.... done
server stopped
waiting for server to start....2019-11-19 16:41:45.940 CST [15439] LOG: starting PostgreSQL 12.1 on x86_64-pc-linux-gnu, compiled by gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-16), 64-bit
2019-11-19 16:41:45.940 CST [15439] LOG: listening on IPv4 address "0.0.0.0", port 5432
2019-11-19 16:41:45.940 CST [15439] LOG: listening on IPv6 address "::", port 5432
2019-11-19 16:41:45.943 CST [15439] LOG: listening on Unix socket "/data/pg12/.s.PGSQL.5432"
2019-11-19 16:41:46.013 CST [15439] LOG: redirecting log output to logging collector process
2019-11-19 16:41:46.013 CST [15439] HINT: Future log output will appear in directory "pg_log".
done
server started
[pg12@localhost contrib]$插件提供的函数
[local:/data/pg12]:5432 pg12@testdb=# select * from pg_namespace where nspname='anon';
oid | nspname | nspowner | nspacl
-------+---------+----------+--------
17050 | anon | 10 |
(1 row)
[local:/data/pg12]:5432 pg12@testdb=# \d pg_proc
Table "pg_catalog.pg_proc"
Column | Type | Collation | Nullable | Default
-----------------+--------------+-----------+----------+---------
oid | oid | | not null |
proname | name | | not null |
pronamespace | oid | | not null |
proowner | oid | | not null |
prolang | oid | | not null |
procost | real | | not null |
prorows | real | | not null |
provariadic | oid | | not null |
prosupport | regproc | | not null |
prokind | "char" | | not null |
prosecdef | boolean | | not null |
proleakproof | boolean | | not null |
proisstrict | boolean | | not null |
proretset | boolean | | not null |
provolatile | "char" | | not null |
proparallel | "char" | | not null |
pronargs | smallint | | not null |
pronargdefaults | smallint | | not null |
prorettype | oid | | not null |
proargtypes | oidvector | | not null |
proallargtypes | oid[] | | |
proargmodes | "char"[] | | |
proargnames | text[] | C | |
[local:/data/pg12]:5432 pg12@testdb=# select proname from pg_proc where pronamespace = 17050;
proname
------------------------------
dump
generalize_int4range
random_date_between
random_date
random_int_between
add_noise_on_numeric_column
add_noise_on_datetime_column
shuffle_column
load
load
isloaded
unload
random_string
random_zip
random_phone
fake_first_name
fake_last_name
fake_email
fake_city_in_country
fake_city
fake_region_in_country
fake_region
fake_country
fake_company
fake_iban
fake_siren
fake_siret
lorem_ipsum
random_first_name
random_last_name
random_email
random_city_in_country
random_city
random_region_in_country
random_region
random_country
random_company
random_iban
random_siren
random_siret
partial
partial_email
source_schema
mask_schema
anonymize_column
anonymize_table
anonymize_database
static_substitution
hasmask
mask_columns
mask_create
mask_filters
mask_create_view
mask_drop_view
get_copy_statement
start_dynamic_masking
mask_init
stop_dynamic_masking
mask_trigger
mask_role
unmask_role
mask_enable
mask_disable
mask_update
dump_ddl
dump_data
generalize_int8range
generalize_numrange
generalize_tsrange
generalize_tstzrange
generalize_daterange
k_anonymity
(72 rows)下面创建一张”隐私”表,使用该插件实现动态脱敏
[local:/data/pg12]:5432 pg12@testdb=# drop table t_masking;
ERROR: table "t_masking" does not exist
[local:/data/pg12]:5432 pg12@testdb=# create table t_masking(id serial,name varchar(20),zipcode varchar(20));
values('王五','230100');
CREATE TABLE
[local:/data/pg12]:5432 pg12@testdb=#
[local:/data/pg12]:5432 pg12@testdb=# insert into t_masking(name,zipcode) values('张三','440100');
INSERT 0 1
[local:/data/pg12]:5432 pg12@testdb=# insert into t_masking(name,zipcode) values('李四','420100');
INSERT 0 1
[local:/data/pg12]:5432 pg12@testdb=# insert into t_masking(name,zipcode) values('王五','230100');
INSERT 0 1
[local:/data/pg12]:5432 pg12@testdb=#启用动态脱敏，创建脱敏用户masking
[local:/data/pg12]:5432 pg12@testdb=# SELECT anon.start_dynamic_masking();
start_dynamic_masking
-----------------------
t
(1 row)
[local:/data/pg12]:5432 pg12@testdb=#
[local:/data/pg12]:5432 pg12@testdb=# CREATE ROLE masking LOGIN with password 'root';
ERROR: syntax error at or near "with"
LINE 1: CREATE ROLE masking LOGIN with password 'root';
^
[local:/data/pg12]:5432 pg12@testdb=# CREATE user masking with password 'root';
CREATE ROLE打标签
[local:/data/pg12]:5432 pg12@testdb=# SECURITY LABEL FOR anon ON ROLE masking IS 'MASKED';
SECURITY LABEL
[local:/data/pg12]:5432 pg12@testdb=# SECURITY LABEL FOR anon ON COLUMN t_masking.name is 'MASKED WITH FUNCTION anon.fake_last_name()';
SECURITY LABEL
[local:/data/pg12]:5432 pg12@testdb=# SECURITY LABEL FOR anon ON COLUMN t_masking.zipcode is 'MASKED WITH FUNCTION anon.random_zip()';
SECURITY LABEL
[local:/data/pg12]:5432 pg12@testdb=#t_masking的数据
[local:/data/pg12]:5432 pg12@testdb=# select * from t_masking;
id | name | zipcode
----+------+---------
1 | 张三 | 440100
2 | 李四 | 420100
3 | 王五 | 230100
(3 rows)
[local:/data/pg12]:5432 pg12@testdb=#用户masking登录查询得到的数据
[pg12@localhost pgddl]$ psql -U masking
Expanded display is used automatically.
psql (12.1)
Type "help" for help.
[local:/data/pg12]:5432 masking@testdb=> select * from t_masking;
id | name | zipcode
----+----------+---------
1 | Malagisi | 46864
2 | Hausner | 55255
3 | Degolyer | 82186
(3 rows)
[local:/data/pg12]:5432 masking@testdb=>可以看到，数据已被“脱敏”。
到此，相信大家对“怎么使用PostgreSQL的插件postgresql_anonymizer”有了更深的了解，不妨来实际操作一番吧！这里是亿速云网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！
