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Don't throw exception when converting values using binder or JsonConverter

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crobibero
2020-11-12 08:06:25 -07:00
parent 5669d1dad2
commit 0c23b8cadf
3 changed files with 89 additions and 36 deletions
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65
Jellyfin.Api/ModelBinders/CommaDelimitedArrayModelBinder.cs
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@@ -1,7 +1,9 @@
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Microsoft.Extensions.Logging;
namespace Jellyfin.Api.ModelBinders
{
@@ -11,6 +13,17 @@ namespace Jellyfin.Api.ModelBinders
/// </summary>
public class CommaDelimitedArrayModelBinder : IModelBinder
{
private readonly ILogger<CommaDelimitedArrayModelBinder> _logger;
/// <summary>
/// Initializes a new instance of the <see cref="CommaDelimitedArrayModelBinder"/> class.
/// </summary>
/// <param name="logger">Instance of the <see cref="ILogger{CommaDelimitedArrayModelBinder}"/> interface.</param>
public CommaDelimitedArrayModelBinder(ILogger<CommaDelimitedArrayModelBinder> logger)
{
_logger = logger;
}
/// <inheritdoc/>
public Task BindModelAsync(ModelBindingContext bindingContext)
{
@@ -20,16 +33,8 @@ namespace Jellyfin.Api.ModelBinders
if (valueProviderResult.Length > 1)
{
var result = Array.CreateInstance(elementType, valueProviderResult.Length);
for (int i = 0; i < valueProviderResult.Length; i++)
{
var value = converter.ConvertFromString(valueProviderResult.Values[i].Trim());
result.SetValue(value, i);
}
bindingContext.Result = ModelBindingResult.Success(result);
var typedValues = GetParsedResult(valueProviderResult.Values, elementType, converter);
bindingContext.Result = ModelBindingResult.Success(typedValues);
}
else
{
@@ -37,13 +42,8 @@ namespace Jellyfin.Api.ModelBinders
if (value != null)
{
var values = Array.ConvertAll(
value.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries),
x => converter.ConvertFromString(x?.Trim()));
var typedValues = Array.CreateInstance(elementType, values.Length);
values.CopyTo(typedValues, 0);
var splitValues = value.Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries);
var typedValues = GetParsedResult(splitValues, elementType, converter);
bindingContext.Result = ModelBindingResult.Success(typedValues);
}
else
@@ -55,5 +55,36 @@ namespace Jellyfin.Api.ModelBinders
return Task.CompletedTask;
}
private Array GetParsedResult(IReadOnlyList<string> values, Type elementType, TypeConverter converter)
{
var parsedValues = new object?[values.Count];
var convertedCount = 0;
for (var i = 0; i < values.Count; i++)
{
try
{
parsedValues[i] = converter.ConvertFromString(values[i]?.Trim());
convertedCount++;
}
catch (FormatException e)
{
_logger.LogWarning(e, "Error converting value.");
}
}
var typedValues = Array.CreateInstance(elementType, convertedCount);
var typedValueIndex = 0;
for (var i = 0; i < parsedValues.Length; i++)
{
if (parsedValues[i] != null)
{
typedValues.SetValue(parsedValues[i], typedValueIndex);
typedValueIndex++;
}
}
return typedValues;
}
}
}