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UrlBuilder.cs
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UrlBuilder.cs
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using JetBrains.Annotations;
using Volo.Abp.Http.Modeling;
using Volo.Abp.Http.ProxyScripting.Generators;
using Volo.Abp.Localization;
using Volo.Abp.Reflection;
namespace Volo.Abp.Http.Client.DynamicProxying
{
internal static class UrlBuilder
{
public static string GenerateUrlWithParameters(ActionApiDescriptionModel action, IReadOnlyDictionary<string, object> methodArguments, ApiVersionInfo apiVersion)
{
var urlBuilder = new StringBuilder(action.Url);
ReplacePathVariables(urlBuilder, action.Parameters, methodArguments, apiVersion);
AddQueryStringParameters(urlBuilder, action.Parameters, methodArguments, apiVersion);
return urlBuilder.ToString();
}
private static void ReplacePathVariables(StringBuilder urlBuilder, IList<ParameterApiDescriptionModel> actionParameters, IReadOnlyDictionary<string, object> methodArguments, ApiVersionInfo apiVersion)
{
var pathParameters = actionParameters
.Where(p => p.BindingSourceId == ParameterBindingSources.Path)
.ToArray();
if (!pathParameters.Any())
{
return;
}
if (pathParameters.Any(p => p.Name == "apiVersion"))
{
urlBuilder = urlBuilder.Replace("{apiVersion}", apiVersion.Version);
}
foreach (var pathParameter in pathParameters.Where(p => p.Name != "apiVersion")) //TODO: Constant!
{
var value = HttpActionParameterHelper.FindParameterValue(methodArguments, pathParameter);
if (value == null)
{
if (pathParameter.IsOptional)
{
urlBuilder = urlBuilder.Replace($"{{{pathParameter.Name}}}", "");
}
else if (pathParameter.DefaultValue != null)
{
urlBuilder = urlBuilder.Replace($"{{{pathParameter.Name}}}", pathParameter.DefaultValue.ToString());
}
else
{
throw new AbpException($"Missing path parameter value for {pathParameter.Name} ({pathParameter.NameOnMethod})");
}
}
else
{
urlBuilder = urlBuilder.Replace($"{{{pathParameter.Name}}}", value.ToString());
}
}
}
private static void AddQueryStringParameters(StringBuilder urlBuilder, IList<ParameterApiDescriptionModel> actionParameters, IReadOnlyDictionary<string, object> methodArguments, ApiVersionInfo apiVersion)
{
var queryStringParameters = actionParameters
.Where(p => p.BindingSourceId.IsIn(ParameterBindingSources.ModelBinding, ParameterBindingSources.Query))
.ToArray();
var isFirstParam = true;
foreach (var queryStringParameter in queryStringParameters)
{
var value = HttpActionParameterHelper.FindParameterValue(methodArguments, queryStringParameter);
if (value == null)
{
continue;
}
AddQueryStringParameter(urlBuilder, isFirstParam, queryStringParameter.Name, value);
isFirstParam = false;
}
if (apiVersion.ShouldSendInQueryString())
{
AddQueryStringParameter(urlBuilder, isFirstParam, "api-version", apiVersion.Version); //TODO: Constant!
}
}
private static void AddQueryStringParameter(
StringBuilder urlBuilder,
bool isFirstParam,
string name,
[NotNull] object value)
{
urlBuilder.Append(isFirstParam ? "?" : "&");
if (value.GetType().IsArray || (value.GetType().IsGenericType && value is IEnumerable))
{
var index = 0;
foreach (var item in (IEnumerable) value)
{
urlBuilder.Append(name + $"[{index++}]=" + System.Net.WebUtility.UrlEncode(ConvertValueToString(item)) + "&");
}
//remove & at the end of the urlBuilder.
urlBuilder.Remove(urlBuilder.Length - 1, 1);
}
else
{
urlBuilder.Append(name + "=" + System.Net.WebUtility.UrlEncode(ConvertValueToString(value)));
}
}
private static string ConvertValueToString([NotNull] object value)
{
using (CultureHelper.Use(CultureInfo.InvariantCulture))
{
if (value is DateTime dateTimeValue)
{
return dateTimeValue.ToUniversalTime().ToString("u");
}
return value.ToString();
}
}
}
}