Make rate-limiting client whitelist dynamic

* Refactor `RateLimitOptions.ClientWhiteList`
* Fix typo in variable `enbleRateLimiting`
* Fix case in variable `clientIdheader`
author Taiwo Otubamowo <totubamowo@deloitte.co.uk>
This commit is contained in:
totubamowo 2019-10-30 11:56:55 +00:00
parent fbd9c01a42
commit 21be46e680
5 changed files with 45 additions and 37 deletions

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@ -1,4 +1,5 @@
using System.Collections.Generic; using System;
using System.Collections.Generic;
namespace Ocelot.Configuration.Builder namespace Ocelot.Configuration.Builder
{ {
@ -7,6 +8,7 @@ namespace Ocelot.Configuration.Builder
private bool _enableRateLimiting; private bool _enableRateLimiting;
private string _clientIdHeader; private string _clientIdHeader;
private List<string> _clientWhitelist; private List<string> _clientWhitelist;
private Func<List<string>> _getClientWhitelist;
private bool _disableRateLimitHeaders; private bool _disableRateLimitHeaders;
private string _quotaExceededMessage; private string _quotaExceededMessage;
private string _rateLimitCounterPrefix; private string _rateLimitCounterPrefix;
@ -19,15 +21,15 @@ namespace Ocelot.Configuration.Builder
return this; return this;
} }
public RateLimitOptionsBuilder WithClientIdHeader(string clientIdheader) public RateLimitOptionsBuilder WithClientIdHeader(string clientIdHeader)
{ {
_clientIdHeader = clientIdheader; _clientIdHeader = clientIdHeader;
return this; return this;
} }
public RateLimitOptionsBuilder WithClientWhiteList(List<string> clientWhitelist) public RateLimitOptionsBuilder WithClientWhiteList(Func<List<string>> getClientWhitelist)
{ {
_clientWhitelist = clientWhitelist; _getClientWhitelist = getClientWhitelist;
return this; return this;
} }
@ -63,7 +65,7 @@ namespace Ocelot.Configuration.Builder
public RateLimitOptions Build() public RateLimitOptions Build()
{ {
return new RateLimitOptions(_enableRateLimiting, _clientIdHeader, _clientWhitelist, return new RateLimitOptions(_enableRateLimiting, _clientIdHeader, _getClientWhitelist,
_disableRateLimitHeaders, _quotaExceededMessage, _rateLimitCounterPrefix, _disableRateLimitHeaders, _quotaExceededMessage, _rateLimitCounterPrefix,
_rateLimitRule, _httpStatusCode); _rateLimitRule, _httpStatusCode);
} }

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@ -11,7 +11,7 @@ namespace Ocelot.Configuration.Creator
{ {
return new RateLimitOptionsBuilder() return new RateLimitOptionsBuilder()
.WithClientIdHeader(globalConfiguration.RateLimitOptions.ClientIdHeader) .WithClientIdHeader(globalConfiguration.RateLimitOptions.ClientIdHeader)
.WithClientWhiteList(fileRateLimitRule.ClientWhitelist) .WithClientWhiteList(() => fileRateLimitRule.ClientWhitelist)
.WithDisableRateLimitHeaders(globalConfiguration.RateLimitOptions.DisableRateLimitHeaders) .WithDisableRateLimitHeaders(globalConfiguration.RateLimitOptions.DisableRateLimitHeaders)
.WithEnableRateLimiting(fileRateLimitRule.EnableRateLimiting) .WithEnableRateLimiting(fileRateLimitRule.EnableRateLimiting)
.WithHttpStatusCode(globalConfiguration.RateLimitOptions.HttpStatusCode) .WithHttpStatusCode(globalConfiguration.RateLimitOptions.HttpStatusCode)

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@ -1,4 +1,5 @@
using System.Collections.Generic; using System;
using System.Collections.Generic;
namespace Ocelot.Configuration namespace Ocelot.Configuration
{ {
@ -7,12 +8,14 @@ namespace Ocelot.Configuration
/// </summary> /// </summary>
public class RateLimitOptions public class RateLimitOptions
{ {
public RateLimitOptions(bool enbleRateLimiting, string clientIdHeader, List<string> clientWhitelist, bool disableRateLimitHeaders, private readonly Func<List<string>> _getClientWhitelist;
public RateLimitOptions(bool enableRateLimiting, string clientIdHeader, Func<List<string>> getClientWhitelist, bool disableRateLimitHeaders,
string quotaExceededMessage, string rateLimitCounterPrefix, RateLimitRule rateLimitRule, int httpStatusCode) string quotaExceededMessage, string rateLimitCounterPrefix, RateLimitRule rateLimitRule, int httpStatusCode)
{ {
EnableRateLimiting = enbleRateLimiting; EnableRateLimiting = enableRateLimiting;
ClientIdHeader = clientIdHeader; ClientIdHeader = clientIdHeader;
ClientWhitelist = clientWhitelist ?? new List<string>(); _getClientWhitelist = getClientWhitelist;
DisableRateLimitHeaders = disableRateLimitHeaders; DisableRateLimitHeaders = disableRateLimitHeaders;
QuotaExceededMessage = quotaExceededMessage; QuotaExceededMessage = quotaExceededMessage;
RateLimitCounterPrefix = rateLimitCounterPrefix; RateLimitCounterPrefix = rateLimitCounterPrefix;
@ -22,7 +25,10 @@ namespace Ocelot.Configuration
public RateLimitRule RateLimitRule { get; private set; } public RateLimitRule RateLimitRule { get; private set; }
public List<string> ClientWhitelist { get; private set; } /// <summary>
/// Gets the list of white listed clients
/// </summary>
public List<string> ClientWhitelist { get => _getClientWhitelist(); }
/// <summary> /// <summary>
/// Gets or sets the HTTP header that holds the client identifier, by default is X-ClientId /// Gets or sets the HTTP header that holds the client identifier, by default is X-ClientId

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@ -50,7 +50,7 @@ namespace Ocelot.UnitTests.Configuration
}; };
var expected = new RateLimitOptionsBuilder() var expected = new RateLimitOptionsBuilder()
.WithClientIdHeader("ClientIdHeader") .WithClientIdHeader("ClientIdHeader")
.WithClientWhiteList(fileReRoute.RateLimitOptions.ClientWhitelist) .WithClientWhiteList(() => fileReRoute.RateLimitOptions.ClientWhitelist)
.WithDisableRateLimitHeaders(true) .WithDisableRateLimitHeaders(true)
.WithEnableRateLimiting(true) .WithEnableRateLimiting(true)
.WithHttpStatusCode(200) .WithHttpStatusCode(200)

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@ -54,7 +54,7 @@ namespace Ocelot.UnitTests.RateLimit
var downstreamReRoute = new DownstreamReRouteBuilder() var downstreamReRoute = new DownstreamReRouteBuilder()
.WithEnableRateLimiting(true) .WithEnableRateLimiting(true)
.WithRateLimitOptions(new RateLimitOptions(true, "ClientId", new List<string>(), false, "", "", new RateLimitRule("1s", 100, 3), 429)) .WithRateLimitOptions(new RateLimitOptions(true, "ClientId", () => new List<string>(), false, "", "", new RateLimitRule("1s", 100, 3), 429))
.WithUpstreamHttpMethod(new List<string> { "Get" }) .WithUpstreamHttpMethod(new List<string> { "Get" })
.WithUpstreamPathTemplate(upstreamTemplate) .WithUpstreamPathTemplate(upstreamTemplate)
.Build(); .Build();
@ -82,7 +82,7 @@ namespace Ocelot.UnitTests.RateLimit
.WithDownstreamReRoute(new DownstreamReRouteBuilder() .WithDownstreamReRoute(new DownstreamReRouteBuilder()
.WithEnableRateLimiting(true) .WithEnableRateLimiting(true)
.WithRateLimitOptions( .WithRateLimitOptions(
new Ocelot.Configuration.RateLimitOptions(true, "ClientId", new List<string>() { "ocelotclient2" }, false, "", "", new RateLimitRule("1s", 100, 3), 429)) new Ocelot.Configuration.RateLimitOptions(true, "ClientId", () => new List<string>() { "ocelotclient2" }, false, "", "", new RateLimitRule("1s", 100, 3), 429))
.WithUpstreamHttpMethod(new List<string> { "Get" }) .WithUpstreamHttpMethod(new List<string> { "Get" })
.Build()) .Build())
.WithUpstreamHttpMethod(new List<string> { "Get" }) .WithUpstreamHttpMethod(new List<string> { "Get" })