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Merge pull request #392 from gongzhengyang/master

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Fix: rust bind return empty string for not found IP
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狮子的魂 / Leon 2025-10-21 14:47:55 +08:00 committed by GitHub
commit 08d3ef69b0
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2 changed files with 26 additions and 9 deletions
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24
binding/rust/ReadMe.md
View File

@ -120,21 +120,31 @@ $ cargo build -r
```
构建的执行程序位置 `binding/rust/target/release/searcher`
测试 IPv6 以及 IPv4 需要结合 ipv6_source.txt 以及 ipv4_source.txt 的内容进行查询结果校验
**此处展示的查询结果只表示当前时间数据的查询，后续查询结果可能会由于 ip_source.txt 以及 xdb 二进制数据的 IP region 段更新修正导致不同**
#### 测试 IPv6
```bash
$ cd binding/rust
$ cargo build -r
$ ./target/release/searcher --xdb='../../data/ip2region_v6.xdb' query
ip2region xdb searcher test program, type `quit` or `Ctrl + c` to exit
ip2region>> 2001:5:4::
region: Ok("荷兰|北荷兰省|阿姆斯特丹|专线用户"), took: 284.80775ms
region: Ok("0|0|内网IP|内网IP"), took: 16.941042ms
ip2region>> 2001::
region: Ok("美国|加利福尼亚州|洛杉矶|专线用户"), took: 12.75µs
ip2region>> 2001:5:6::
region: Ok("荷兰|北荷兰省|阿姆斯特丹|专线用户"), took: 52.958µs
ip2region>> 2001:5:5::
region: Ok("比利时|弗拉芒大区|泽勒|专线用户"), took: 123.375µs
region: Ok("日本|东京都|千代田区|专线用户"), took: 231.75µs
ip2region>> 2001:268:989e::1
region: Ok("日本|东京都||移动网络"), took: 12.167µs
ip2region>> 2001:268:9a02:8888::
region: Ok("日本|静冈县|菊川市|移动网络"), took: 107.834µs
ip2region>> 2001:268:9b87:5f00::
region: Ok("日本|爱知县|高滨市|移动网络"), took: 812.625µs
ip2region>> 2a02:26f7:b408:a6c2::
region: Ok("美国|弗吉尼亚州|恩波里亚|数据中心"), took: 132.333µs
ip2region>> 2c99::
region: Ok("0|0|内网IP|内网IP"), took: 861.25µs
ip2region>>
```

11
binding/rust/ip2region/src/searcher.rs
View File

@ -81,7 +81,10 @@ impl Searcher {
let offset = start_ptr + mid * segment_index_size;
let buffer_ip_value = self.read_buf(offset, segment_index_size)?;
if ip.ip_lt(Cow::Borrowed(&buffer_ip_value[0..ip_bytes_len])) {
right = mid - 1;
let Some(m) = mid.checked_sub(1) else {
break
};
right = m;
} else if ip.ip_gt(Cow::Borrowed(&buffer_ip_value[ip_bytes_len..ip_end_offset])) {
left = mid + 1;
} else {
@ -99,7 +102,11 @@ impl Searcher {
return Ok(result);
}
}
Err(Ip2RegionError::NoMatchedIP)
// From xdb 3.0 version no matched IP result change to empty string,
// so users should check string is empty.
//
// Err(Ip2RegionError::NoMatchedIP)
Ok(String::new())
}
pub fn vector_index(&self) -> Result<Cow<'_, [u8]>> {