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using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using System.Net;
using MediaBrowser.Model.Dto;
using Microsoft.AspNetCore.Http;
namespace MediaBrowser.Model.Services
{
// Remove this garbage class, it's just a bastard copy of NameValueCollection
public class QueryParamCollection : List<NameValuePair>
{
public QueryParamCollection()
{
}
public QueryParamCollection(IDictionary<string, string> headers)
{
foreach (var pair in headers)
{
Add(pair.Key, pair.Value);
}
}
public QueryParamCollection(Microsoft.AspNetCore.Http.IHeaderDictionary headers)
{
foreach (var pair in headers)
{
Add(pair.Key, pair.Value);
}
}
// TODO remove this shit
public QueryParamCollection(WebHeaderCollection webHeaderCollection)
{
foreach (var key in webHeaderCollection.AllKeys)
{
foreach (var value in webHeaderCollection.GetValues(key) ?? Array.Empty<string>())
{
Add(key, value);
}
}
}
// TODO remove this shit
public QueryParamCollection(NameValueCollection nameValueCollection)
{
foreach (var key in nameValueCollection.AllKeys)
{
foreach (var value in nameValueCollection.GetValues(key) ?? Array.Empty<string>())
{
Add(key, value);
}
}
}
public QueryParamCollection(IQueryCollection queryCollection)
{
foreach (var pair in queryCollection)
{
Add(pair.Key, pair.Value);
}
}
private static StringComparison GetStringComparison()
{
return StringComparison.OrdinalIgnoreCase;
}
private static StringComparer GetStringComparer()
{
return StringComparer.OrdinalIgnoreCase;
}
public string GetKey(int index)
{
return this[index].Name;
}
public string Get(int index)
{
return this[index].Value;
}
public virtual string[] GetValues(int index)
{
return new[] { Get(index) };
}
/// <summary>
/// Adds a new query parameter.
/// </summary>
public virtual void Add(string key, string value)
{
if (string.Equals(key, "content-length", StringComparison.OrdinalIgnoreCase))
{
return;
}
Add(new NameValuePair(key, value));
}
public virtual void Set(string key, string value)
{
if (string.IsNullOrEmpty(value))
{
var parameters = GetItems(key);
foreach (var p in parameters)
{
Remove(p);
}
return;
}
foreach (var pair in this)
{
var stringComparison = GetStringComparison();
if (string.Equals(key, pair.Name, stringComparison))
{
pair.Value = value;
return;
}
}
Add(key, value);
}
/// <summary>
/// Removes all parameters of the given name.
/// </summary>
/// <returns>The number of parameters that were removed</returns>
/// <exception cref="ArgumentNullException"><paramref name="name" /> is null.</exception>
public virtual int Remove(string name)
{
return RemoveAll(p => p.Name == name);
}
public string Get(string name)
{
var stringComparison = GetStringComparison();
foreach (var pair in this)
{
if (string.Equals(pair.Name, name, stringComparison))
{
return pair.Value;
}
}
return null;
}
public virtual List<NameValuePair> GetItems(string name)
{
var stringComparison = GetStringComparison();
var list = new List<NameValuePair>();
foreach (var pair in this)
{
if (string.Equals(pair.Name, name, stringComparison))
{
list.Add(pair);
}
}
return list;
}
public virtual List<string> GetValues(string name)
{
var stringComparison = GetStringComparison();
var list = new List<string>();
foreach (var pair in this)
{
if (string.Equals(pair.Name, name, stringComparison))
{
list.Add(pair.Value);
}
}
return list;
}
public Dictionary<string, string> ToDictionary()
{
var stringComparer = GetStringComparer();
var headers = new Dictionary<string, string>(stringComparer);
foreach (var pair in this)
{
headers[pair.Name] = pair.Value;
}
return headers;
}
public IEnumerable<string> Keys
{
get
{
var keys = new string[this.Count];
for (var i = 0; i < keys.Length; i++)
{
keys[i] = this[i].Name;
}
return keys;
}
}
/// <summary>
/// Gets or sets a query parameter value by name. A query may contain multiple values of the same name
/// (i.e. "x=1&x=2"), in which case the value is an array, which works for both getting and setting.
/// </summary>
/// <param name="name">The query parameter name</param>
/// <returns>The query parameter value or array of values</returns>
public string this[string name]
{
get => Get(name);
set => Set(name, value);
}
private string GetQueryStringValue(NameValuePair pair)
{
return pair.Name + "=" + pair.Value;
}
public override string ToString()
{
var vals = this.Select(GetQueryStringValue).ToArray();
return string.Join("&", vals);
}
}
}
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