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Make rate-limiting client whitelist dynamic

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* 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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14
src/Ocelot/Configuration/Builder/RateLimitOptionsBuilder.cs
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@@ -1,4 +1,5 @@
using System.Collections.Generic;
using System;
using System.Collections.Generic;
namespace Ocelot.Configuration.Builder
{
@@ -7,6 +8,7 @@ namespace Ocelot.Configuration.Builder
private bool _enableRateLimiting;
private string _clientIdHeader;
private List<string> _clientWhitelist;
private Func<List<string>> _getClientWhitelist;
private bool _disableRateLimitHeaders;
private string _quotaExceededMessage;
private string _rateLimitCounterPrefix;
@@ -19,15 +21,15 @@ namespace Ocelot.Configuration.Builder
return this;
}
public RateLimitOptionsBuilder WithClientIdHeader(string clientIdheader)
public RateLimitOptionsBuilder WithClientIdHeader(string clientIdHeader)
{
_clientIdHeader = clientIdheader;
_clientIdHeader = clientIdHeader;
return this;
}
public RateLimitOptionsBuilder WithClientWhiteList(List<string> clientWhitelist)
public RateLimitOptionsBuilder WithClientWhiteList(Func<List<string>> getClientWhitelist)
{
_clientWhitelist = clientWhitelist;
_getClientWhitelist = getClientWhitelist;
return this;
}
@@ -63,7 +65,7 @@ namespace Ocelot.Configuration.Builder
public RateLimitOptions Build()
{
return new RateLimitOptions(_enableRateLimiting, _clientIdHeader, _clientWhitelist,
return new RateLimitOptions(_enableRateLimiting, _clientIdHeader, _getClientWhitelist,
_disableRateLimitHeaders, _quotaExceededMessage, _rateLimitCounterPrefix,
_rateLimitRule, _httpStatusCode);
}

2
src/Ocelot/Configuration/Creator/RateLimitOptionsCreator.cs
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@@ -11,7 +11,7 @@ namespace Ocelot.Configuration.Creator
{
return new RateLimitOptionsBuilder()
.WithClientIdHeader(globalConfiguration.RateLimitOptions.ClientIdHeader)
.WithClientWhiteList(fileRateLimitRule.ClientWhitelist)
.WithClientWhiteList(() => fileRateLimitRule.ClientWhitelist)
.WithDisableRateLimitHeaders(globalConfiguration.RateLimitOptions.DisableRateLimitHeaders)
.WithEnableRateLimiting(fileRateLimitRule.EnableRateLimiting)
.WithHttpStatusCode(globalConfiguration.RateLimitOptions.HttpStatusCode)

16
src/Ocelot/Configuration/RateLimitOptions.cs
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@@ -1,4 +1,5 @@
using System.Collections.Generic;
using System;
using System.Collections.Generic;
namespace Ocelot.Configuration
{
@@ -7,12 +8,14 @@ namespace Ocelot.Configuration
/// </summary>
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)
{
EnableRateLimiting = enbleRateLimiting;
EnableRateLimiting = enableRateLimiting;
ClientIdHeader = clientIdHeader;
ClientWhitelist = clientWhitelist ?? new List<string>();
_getClientWhitelist = getClientWhitelist;
DisableRateLimitHeaders = disableRateLimitHeaders;
QuotaExceededMessage = quotaExceededMessage;
RateLimitCounterPrefix = rateLimitCounterPrefix;
@@ -22,7 +25,10 @@ namespace Ocelot.Configuration
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>
/// Gets or sets the HTTP header that holds the client identifier, by default is X-ClientId

2
test/Ocelot.UnitTests/Configuration/RateLimitOptionsCreatorTests.cs
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@@ -50,7 +50,7 @@ namespace Ocelot.UnitTests.Configuration
};
var expected = new RateLimitOptionsBuilder()
.WithClientIdHeader("ClientIdHeader")
.WithClientWhiteList(fileReRoute.RateLimitOptions.ClientWhitelist)
.WithClientWhiteList(() => fileReRoute.RateLimitOptions.ClientWhitelist)
.WithDisableRateLimitHeaders(true)
.WithEnableRateLimiting(true)
.WithHttpStatusCode(200)

4
test/Ocelot.UnitTests/RateLimit/ClientRateLimitMiddlewareTests.cs
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@@ -54,7 +54,7 @@ namespace Ocelot.UnitTests.RateLimit
var downstreamReRoute = new DownstreamReRouteBuilder()
.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" })
.WithUpstreamPathTemplate(upstreamTemplate)
.Build();
@@ -82,7 +82,7 @@ namespace Ocelot.UnitTests.RateLimit
.WithDownstreamReRoute(new DownstreamReRouteBuilder()
.WithEnableRateLimiting(true)
.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" })
.Build())
.WithUpstreamHttpMethod(new List<string> { "Get" })