/// <summary>
/// Creates code builder.
/// </summary>
/// <param name="options">
/// The options.
/// </param>
public static IWebHostBuilder CreateCodeBuilder(IPFilteringOptions options = null)
{
IWebHostBuilder builder = new WebHostBuilder()
.ConfigureServices(
s => s.AddIPFiltering(
opts =>
{
if (options != null)
{
opts.DefaultBlockLevel = options.DefaultBlockLevel;
opts.HttpStatusCode = options.HttpStatusCode;
opts.Blacklist = options.Blacklist;
opts.Whitelist = options.Whitelist;
}
}))
.Configure(
app =>
{
app.UseIPFiltering();
app.Run(
async c => { await c.Response.WriteAsync("Hello World"); });
});
return(builder);
}
public static IApplicationBuilder UseIPFiltering(
this IApplicationBuilder app,
IPFilteringOptions options)
{
if (app == null)
{
throw new ArgumentNullException(nameof(app));
}
if (options == null)
{
throw new ArgumentNullException(nameof(options));
}
return(app.UseMiddleware <IPFilteringMiddleware>(Options.Create(options)));
}
/// <inheritdoc />
public virtual bool IsAllowed(IPAddress ipAddress, IPFilteringOptions options)
{
if (ipAddress != null)
{
var whitelist = options.Whitelist.Select(IPAddressRange.Parse).ToList();
var blacklist = options.Blacklist.Select(IPAddressRange.Parse).ToList();
switch (options.DefaultBlockLevel)
{
case DefaultBlockLevel.All:
return(whitelist.Any(r => r.Contains(ipAddress)) && !blacklist.Any(r => r.Contains(ipAddress)));
case DefaultBlockLevel.None:
return(!blacklist.Any(r => r.Contains(ipAddress)) || whitelist.Any(r => r.Contains(ipAddress)));
}
}
return(options.DefaultBlockLevel == DefaultBlockLevel.None);
}
/// <summary>
/// Creates code builder.
/// </summary>
/// <param name="options">
/// The options.
/// </param>
public static IWebHostBuilder CreateCodeBuilder(IPFilteringOptions options = null)
{
if (options == null)
{
options = new IPFilteringOptions();
}
IWebHostBuilder builder = new WebHostBuilder()
.ConfigureServices(s => s.AddIPFiltering())
.Configure(
app =>
{
app.UseIPFiltering(options);
app.Run(
async c => { await c.Response.WriteAsync("Hello World"); });
});
return(builder);
}
/// <inheritdoc/>
public bool IsIgnored(string verb, string path, IPFilteringOptions options)
{
if (options.IgnoredPaths != null)
{
string fullCheck = $"{verb}:{path}";
string check = $"*:{path}";
if (options.IgnoredPaths.Any(x => Contains(fullCheck, x)) || options.IgnoredPaths.Any(x => Contains(check, x)))
{
return(true);
}
}
return(false);
bool Contains(string source, string value)
{
return((source != null) && (value != null) && source.StartsWith(value, StringComparison.OrdinalIgnoreCase));
}
}
