aspnetcore/src/Microsoft.AspNetCore.Rewrite/Internal/UrlActions/RewriteAction.cs

80 lines
3.0 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Http.Extensions;
namespace Microsoft.AspNetCore.Rewrite.Internal.UrlActions
{
public class RewriteAction : UrlAction
{
private readonly string ForwardSlash = "/";
public RuleTermination Result { get; }
public bool ClearQuery { get; }
public RewriteAction(RuleTermination result, Pattern pattern, bool clearQuery)
{
Result = result;
Url = pattern;
ClearQuery = clearQuery;
}
public override RuleResult ApplyAction(RewriteContext context, MatchResults ruleMatch, MatchResults condMatch)
{
var pattern = Url.Evaluate(context, ruleMatch, condMatch);
if (ClearQuery)
{
context.HttpContext.Request.QueryString = QueryString.Empty;
}
if (pattern.IndexOf("://", StringComparison.Ordinal) >= 0)
{
string scheme;
HostString host;
PathString path;
QueryString query;
FragmentString fragment;
UriHelper.FromAbsolute(pattern, out scheme, out host, out path, out query, out fragment);
context.HttpContext.Request.Scheme = scheme;
context.HttpContext.Request.Host = host;
context.HttpContext.Request.Path = path;
context.HttpContext.Request.QueryString = query.Add(context.HttpContext.Request.QueryString);
}
else
{
var split = pattern.IndexOf('?');
if (split >= 0)
{
var path = pattern.Substring(0, split);
if (path.StartsWith(ForwardSlash))
{
context.HttpContext.Request.Path = PathString.FromUriComponent(path);
}
else
{
context.HttpContext.Request.Path = PathString.FromUriComponent(ForwardSlash + path);
}
context.HttpContext.Request.QueryString = context.HttpContext.Request.QueryString.Add(
QueryString.FromUriComponent(
pattern.Substring(split)));
}
else
{
if (pattern.StartsWith(ForwardSlash))
{
context.HttpContext.Request.Path = PathString.FromUriComponent(pattern);
}
else
{
context.HttpContext.Request.Path = PathString.FromUriComponent(ForwardSlash + pattern);
}
}
}
return new RuleResult { Result = Result };
}
}
}