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Use RoutePattern in TemplateBinder

This commit is contained in:
Ryan Nowak 2018-08-15 10:08:57 -07:00
parent e09b88ebd6
commit 085a0b808e
2 changed files with 48 additions and 38 deletions
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2
src/Microsoft.AspNetCore.Routing/DefaultLinkGenerator.cs
View File

@ -105,7 +105,7 @@ namespace Microsoft.AspNetCore.Routing
var templateBinder = new TemplateBinder(
UrlEncoder.Default,
_uriBuildingContextPool,
new RouteTemplate(endpoint.RoutePattern),
endpoint.RoutePattern,
new RouteValueDictionary(endpoint.RoutePattern.Defaults));
var routeValuesAddressMetadata = endpoint.Metadata.GetMetadata<IRouteValuesAddressMetadata>();

84
src/Microsoft.AspNetCore.Routing/Template/TemplateBinder.cs
View File

@ -8,6 +8,7 @@ using System.Diagnostics;
using System.Globalization;
using System.Text.Encodings.Web;
using Microsoft.AspNetCore.Routing.Internal;
using Microsoft.AspNetCore.Routing.Patterns;
using Microsoft.Extensions.ObjectPool;
namespace Microsoft.AspNetCore.Routing.Template
@ -19,7 +20,7 @@ namespace Microsoft.AspNetCore.Routing.Template
private readonly RouteValueDictionary _defaults;
private readonly RouteValueDictionary _filters;
private readonly RouteTemplate _template;
private readonly RoutePattern _pattern;
/// <summary>
/// Creates a new instance of <see cref="TemplateBinder"/>.
@ -33,6 +34,22 @@ namespace Microsoft.AspNetCore.Routing.Template
ObjectPool<UriBuildingContext> pool,
RouteTemplate template,
RouteValueDictionary defaults)
: this(urlEncoder, pool, template?.ToRoutePattern(), defaults)
{
}
/// <summary>
/// Creates a new instance of <see cref="TemplateBinder"/>.
/// </summary>
/// <param name="urlEncoder">The <see cref="UrlEncoder"/>.</param>
/// <param name="pool">The <see cref="ObjectPool{T}"/>.</param>
/// <param name="pattern">The <see cref="RoutePattern"/> to bind values to.</param>
/// <param name="defaults">The default values for <paramref name="pattern"/>.</param>
public TemplateBinder(
UrlEncoder urlEncoder,
ObjectPool<UriBuildingContext> pool,
RoutePattern pattern,
RouteValueDictionary defaults)
{
if (urlEncoder == null)
{
@ -44,20 +61,20 @@ namespace Microsoft.AspNetCore.Routing.Template
throw new ArgumentNullException(nameof(pool));
}
if (template == null)
if (pattern == null)
{
throw new ArgumentNullException(nameof(template));
throw new ArgumentNullException(nameof(pattern));
}
_urlEncoder = urlEncoder;
_pool = pool;
_template = template;
_pattern = pattern;
_defaults = defaults;
// Any default that doesn't have a corresponding parameter is a 'filter' and if a value
// is provided for that 'filter' it must match the value in defaults.
_filters = new RouteValueDictionary(_defaults);
foreach (var parameter in _template.Parameters)
foreach (var parameter in _pattern.Parameters)
{
_filters.Remove(parameter.Name);
}
@ -149,36 +166,43 @@ namespace Microsoft.AspNetCore.Routing.Template
private string BindValues(UriBuildingContext context, RouteValueDictionary acceptedValues)
{
for (var i = 0; i < _template.Segments.Count; i++)
for (var i = 0; i < _pattern.PathSegments.Count; i++)
{
Debug.Assert(context.BufferState == SegmentState.Beginning);
Debug.Assert(context.UriState == SegmentState.Beginning);
var segment = _template.Segments[i];
var segment = _pattern.PathSegments[i];
for (var j = 0; j < segment.Parts.Count; j++)
{
var part = segment.Parts[j];
if (part.IsLiteral)
if (part is RoutePatternLiteralPart literalPart)
{
if (!context.Accept(part.Text))
if (!context.Accept(literalPart.Content))
{
return null;
}
}
else if (part.IsParameter)
else if (part is RoutePatternSeparatorPart separatorPart)
{
if (!context.Accept(separatorPart.Content))
{
return null;
}
}
else if (part is RoutePatternParameterPart parameterPart)
{
// If it's a parameter, get its value
var hasValue = acceptedValues.TryGetValue(part.Name, out var value);
var hasValue = acceptedValues.TryGetValue(parameterPart.Name, out var value);
if (hasValue)
{
acceptedValues.Remove(part.Name);
acceptedValues.Remove(parameterPart.Name);
}
var isSameAsDefault = false;
if (_defaults != null &&
_defaults.TryGetValue(part.Name, out var defaultValue) &&
_defaults.TryGetValue(parameterPart.Name, out var defaultValue) &&
RoutePartsEqual(value, defaultValue))
{
isSameAsDefault = true;
@ -206,9 +230,9 @@ namespace Microsoft.AspNetCore.Routing.Template
// for format, so we remove '.' and generate 5.
if (!context.Accept(converted))
{
if (j != 0 && part.IsOptional && segment.Parts[j - 1].IsOptionalSeperator)
if (j != 0 && parameterPart.IsOptional && (separatorPart = segment.Parts[j - 1] as RoutePatternSeparatorPart) != null)
{
context.Remove(segment.Parts[j - 1].Text);
context.Remove(separatorPart.Content);
}
else
{
@ -262,20 +286,6 @@ namespace Microsoft.AspNetCore.Routing.Template
return false;
}
private TemplatePart GetParameter(string name)
{
for (var i = 0; i < _template.Parameters.Count; i++)
{
var parameter = _template.Parameters[i];
if (string.Equals(parameter.Name, name, StringComparison.OrdinalIgnoreCase))
{
return parameter;
}
}
return null;
}
/// <summary>
/// Compares two objects for equality as parts of a case-insensitive path.
/// </summary>
@ -370,9 +380,9 @@ namespace Microsoft.AspNetCore.Routing.Template
// We also handle the case where a parameter is optional but has no value - we shouldn't
// accept additional parameters that appear *after* that parameter.
for (var i = 0; i < _template.Parameters.Count; i++)
for (var i = 0; i < _pattern.Parameters.Count; i++)
{
var parameter = _template.Parameters[i];
var parameter = _pattern.Parameters[i];
// If it's a parameter subsegment, examine the current value to see if it matches the new value
var parameterName = parameter.Name;
@ -436,9 +446,9 @@ namespace Microsoft.AspNetCore.Routing.Template
private void CopyParameterDefaultValues(TemplateBindingContext context)
{
for (var i = 0; i < _template.Parameters.Count; i++)
for (var i = 0; i < _pattern.Parameters.Count; i++)
{
var parameter = _template.Parameters[i];
var parameter = _pattern.Parameters[i];
if (parameter.IsOptional || parameter.IsCatchAll)
{
continue;
@ -456,9 +466,9 @@ namespace Microsoft.AspNetCore.Routing.Template
private bool AllRequiredParametersHaveValue(TemplateBindingContext context)
{
for (var i = 0; i < _template.Parameters.Count; i++)
for (var i = 0; i < _pattern.Parameters.Count; i++)
{
var parameter = _template.Parameters[i];
var parameter = _pattern.Parameters[i];
if (parameter.IsOptional || parameter.IsCatchAll)
{
continue;
@ -477,7 +487,7 @@ namespace Microsoft.AspNetCore.Routing.Template
{
foreach (var filter in _filters)
{
var parameter = GetParameter(filter.Key);
var parameter = _pattern.GetParameter(filter.Key);
if (parameter != null)
{
continue;
@ -507,7 +517,7 @@ namespace Microsoft.AspNetCore.Routing.Template
{
if (IsRoutePartNonEmpty(kvp.Value))
{
var parameter = GetParameter(kvp.Key);
var parameter = _pattern.GetParameter(kvp.Key);
if (parameter == null && !context.AcceptedValues.ContainsKey(kvp.Key))
{
combinedValues.Add(kvp.Key, kvp.Value);