This repository has been archived by the owner on Nov 27, 2018. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 126
/
RangeRouteConstraint.cs
73 lines (64 loc) · 2.43 KB
/
RangeRouteConstraint.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
// 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 System.Globalization;
using Microsoft.AspNetCore.Http;
namespace Microsoft.AspNetCore.Routing.Constraints
{
/// <summary>
/// Constraints a route parameter to be an integer within a given range of values.
/// </summary>
public class RangeRouteConstraint : IRouteConstraint
{
/// <summary>
/// Initializes a new instance of the <see cref="RangeRouteConstraint" /> class.
/// </summary>
/// <param name="min">The minimum value.</param>
/// <param name="max">The maximum value.</param>
/// <remarks>The minimum value should be less than or equal to the maximum value.</remarks>
public RangeRouteConstraint(long min, long max)
{
if (min > max)
{
var errorMessage = Resources.FormatRangeConstraint_MinShouldBeLessThanOrEqualToMax("min", "max");
throw new ArgumentOutOfRangeException(nameof(min), min, errorMessage);
}
Min = min;
Max = max;
}
/// <summary>
/// Gets the minimum allowed value of the route parameter.
/// </summary>
public long Min { get; private set; }
/// <summary>
/// Gets the maximum allowed value of the route parameter.
/// </summary>
public long Max { get; private set; }
/// <inheritdoc />
public bool Match(
HttpContext httpContext,
IRouter route,
string routeKey,
RouteValueDictionary values,
RouteDirection routeDirection)
{
if (routeKey == null)
{
throw new ArgumentNullException(nameof(routeKey));
}
if (values == null)
{
throw new ArgumentNullException(nameof(values));
}
if (values.TryGetValue(routeKey, out var value) && value != null)
{
var valueString = Convert.ToString(value, CultureInfo.InvariantCulture);
if (long.TryParse(valueString, NumberStyles.Integer, CultureInfo.InvariantCulture, out var longValue))
{
return longValue >= Min && longValue <= Max;
}
}
return false;
}
}
}