public async Task <BlogResponse <List <string> > > Ip2RegionAsync(string ip)
{
var response = new BlogResponse <List <string> >();
if (ip.IsNullOrEmpty())
{
ip = _httpContextAccessor.HttpContext.Request.Headers["X-Real-IP"].FirstOrDefault() ??
_httpContextAccessor.HttpContext.Request.Headers["X-Forwarded-For"].FirstOrDefault() ??
_httpContextAccessor.HttpContext.Connection.RemoteIpAddress.MapToIPv4().ToString();
}
else
{
if (!ip.IsIp())
{
response.IsFailed("The ip address error.");
return(response);
}
}
var path = Path.Combine(Directory.GetCurrentDirectory(), "Resources/ip2region.db");
using var _search = new DbSearcher(path);
var block = await _search.BinarySearchAsync(ip);
var region = block.Region.Split("|").Distinct().Where(x => x != "0").ToList();
region.AddFirst(ip);
response.Result = region;
return(response);
}
public async Task SearchAsync_Test()
{
// We don't need the synchronizeContext, so just set to false
var memResult = await _search.MemorySearchAsync("183.192.62.65").ConfigureAwait(false);
var binarySearchResult = await _search.BinarySearchAsync("183.192.62.65").ConfigureAwait(false);
var bTreeSearchResult = await _search.BtreeSearchAsync("183.192.62.65").ConfigureAwait(false);
Assert.NotNull(memResult.Region);
Assert.NotNull(binarySearchResult.Region);
Assert.NotNull(bTreeSearchResult.Region);
Assert.Equal(memResult.Region, binarySearchResult.Region);
Assert.Equal(bTreeSearchResult.Region, memResult.Region);
}
public async Task <Response <string> > Ip2Region([RegularExpression(@"\d{0,3}\.\d{0,3}\.\d{0,3}\.\d{0,3}", ErrorMessage = "ip格式有误")] string ip)
{
var response = new Response <string>();
if (string.IsNullOrEmpty(ip))
{
ip = HttpContext.Request.Headers["X-Forwarded-For"].FirstOrDefault();
if (string.IsNullOrEmpty(ip))
{
ip = Request.HttpContext.Connection.RemoteIpAddress.MapToIPv4().ToString();
}
}
var path = Path.Combine(Directory.GetCurrentDirectory(), "Resources/ip2region.db");
using var _search = new DbSearcher(path);
var result = (await _search.BinarySearchAsync(ip)).Region;
response.Result = result;
return(response);
}
