136 lines
4.9 KiB
Markdown
136 lines
4.9 KiB
Markdown
# ip2region xdb golang 生成实现
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# 程序编译
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通过如下方式编译得到 xdb_maker 可执行程序:
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```
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# 切换到golang maker 根目录
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make
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```
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编译成功后会在当前目录生成一个 xdb_maker 的可执行文件
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# `xdb` 数据生成
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通过 `xdb_maker gen` 命令生成 ip2region.xdb 二进制文件:
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```
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➜ golang git:(v2.0_xdb) ✗ ./xdb_maker gen
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./xdb_maker gen [command options]
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options:
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--src string source ip text file path
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--dst string destination binary xdb file path
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```
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例如，使用默认的 data/ip.merge.txt 作为源数据，生成一个 ip2region.xdb 到当前目录：
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```bash
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➜ golang git:(v2.0_xdb) ✗ ./xdb_maker gen --src=../../data/ip.merge.txt --dst=./ip2region.xdb
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# 会看到一堆输出，最终会看到类似如下输出表示运行结束
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...
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2022/06/16 16:38:48 maker.go:317: write done, with 13804 data blocks and (683591, 720221) index blocks
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2022/06/16 16:38:48 main.go:89: Done, elapsed: 33.615278847s
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```
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# `xdb` 数据查询
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通过 `xdb_maker search` 命令来测试查询输入的 ip：
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```
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➜ golang git:(v2.0_xdb) ✗ ./xdb_maker search
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./xdb_maker search [command options]
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options:
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--db string ip2region binary xdb file path
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```
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例如，使用自带的 xdb 文件来运行查询测试：
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```bash
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➜ golang git:(v2.0_xdb) ✗ ./xdb_maker search --db=../../data/ip2region.xdb
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ip2region xdb search test program, commands:
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loadIndex : load the vector index for search speedup.
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clearIndex: clear the vector index.
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quit : exit the test program
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ip2region>> 103.192.227.215
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{region:中国|0|香港|0|0, iocount:8, took:87.151µs}
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ip2region>> loadIndex
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vector index cached
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ip2region>> 39.114.2.16
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{region:韩国|0|0|0|SK宽带, iocount:2, took:50.005µs}
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ip2region>> 120.24.130.96
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{region:中国|0|广东省|深圳市|阿里云, iocount:2, took:32.805µs}
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ip2region>>
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```
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# `xdb` 数据编辑
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通过 `xdb_maker edit` 命令来编辑原始的 IP 数据：
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```
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➜ golang git:(fr_editor) ✗ ./xdb_maker edit
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./xdb_maker edit [command options]
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options:
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--src string source ip text file path
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```
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例如，使用编辑器打开 `./data/ip.merge.txt` 会看到如下的操作面板：
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```bash
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➜ golang git:(fr_editor) ✗ ./xdb_maker edit --src=../../data/ip.merge.txt
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init the editor from source @ `../../data/ip.merge.txt` ...
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all segments loaded, length: 683591, elapsed: 479.73743ms
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command list:
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put [segment] : put the specifield $segment
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put_file [file] : put all the segments from the specified $file
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list [offset] [size] : list the first $size segments start from $offset
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save : save all the changes to the destination source file
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quit : exit the program
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help : print this help menu
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editor>>
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```
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通过 `put` 命令修改指定 IP 段的定位信息，例如：
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```bash
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editor>> put 36.132.128.0|36.132.147.255|中国|0|黑龙江省|哈尔滨市|移动
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Put(36.132.128.0|36.132.147.255|中国|0|黑龙江省|哈尔滨市|移动): Ok, with 1 deletes and 2 additions
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*editor>>
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```
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通过 `put_file` 命令从文件中批量载入修改，文件中的 IP 段不需要像 ./data/ip.merge.txt 中的数据那么严格，不需要前后连续，不同 IP 段有重叠也没关系，编辑器会自动分析处理，例如：
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```bash
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*editor>> put_file ../../data/ip.test.txt
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PutFile(../../data/ip.test.txt): Ok, with 25 deletes and 25 additions
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*editor>>
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```
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通过 `save` 命令保存修改，保存成功后，再通过上面的命令从修改后的原始 IP 文件重新生成 xdb 即可：
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```bash
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*editor>> save
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all segments saved to ../../data/ip.merge.txt
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editor>>
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```
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# bench 测试
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如果你自主生成了 `xdb` 文件，请确保运行如下的 `xdb_maker bench` 命令来确保生成的的 `xdb` 文件的正确性：
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```
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➜ golang git:(v2.0_xdb) ✗ ./xdb_maker bench
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./xdb_maker bench [command options]
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options:
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--db string ip2region binary xdb file path
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--src string source ip text file path
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--ignore-error bool keep going if bench failed
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```
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例如：使用 data/ip.merge.txt 源文件来 bench 测试 data/ip2region.xdb 这个 xdb 文件：
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```bash
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➜ golang git:(v2.0_xdb) ✗ ./xdb_maker bench --db=../../data/ip2region.xdb --src=../../data/ip.merge.txt
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# 会看到一堆输出，看到类似如下的数据表示 bench 测试通过了，否则就会报错
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...
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try to bench segment: `224.0.0.0|255.255.255.255|0|0|0|内网IP|内网IP`
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|-try to bench ip '224.0.0.0' ... --[Ok]
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|-try to bench ip '231.255.255.255' ... --[Ok]
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|-try to bench ip '239.255.255.255' ... --[Ok]
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|-try to bench ip '247.255.255.255' ... --[Ok]
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|-try to bench ip '255.255.255.255' ... --[Ok]
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Bench finished, {count: 3417955, failed: 0, took: 52.200116397s}
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```
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*请注意 bench 测试使用的 `src` 文件需要是对应的生成 ip2region.xdb 的源文件相同*。
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如果运行过程中有错误会立马停止运行，也可以执行 --ignore-error=true 参数来忽略错误，在最后看 failed 的统计结果。
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