1 files changed, 164 insertions, 0 deletions
diff --git a/MediaBrowser.Model/Services/QueryParamCollection.cs b/MediaBrowser.Model/Services/QueryParamCollection.cs
new file mode 100644
index 000000000..6393a87fb
--- /dev/null
+++ b/MediaBrowser.Model/Services/QueryParamCollection.cs
@@ -0,0 +1,164 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using MediaBrowser.Model.Dto;
+
+namespace MediaBrowser.Model.Services
+{
+    public class QueryParamCollection : List<NameValuePair>
+    {
+        public QueryParamCollection()
+        {
+            
+        }
+
+        public QueryParamCollection(IDictionary<string, string> headers)
+        {
+            foreach (var pair in headers)
+            {
+                Add(pair.Key, pair.Value);
+            }
+        }
+
+        private StringComparison GetStringComparison()
+        {
+            return StringComparison.OrdinalIgnoreCase;
+        }
+
+        private StringComparer GetStringComparer()
+        {
+            return StringComparer.OrdinalIgnoreCase;
+        }
+
+        /// <summary>
+        /// Adds a new query parameter.
+        /// </summary>
+        public void Add(string key, string value)
+        {
+            Add(new NameValuePair(key, value));
+        }
+
+        public void Set(string key, string value)
+        {
+            if (string.IsNullOrWhiteSpace(value))
+            {
+                var stringComparison = GetStringComparison();
+
+                var parameters = this.Where(p => string.Equals(key, p.Name, stringComparison)).ToArray();
+
+                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>
+        /// True if the collection contains a query parameter with the given name.
+        /// </summary>
+        public bool ContainsKey(string name)
+        {
+            return this.Any(p => p.Name == name);
+        }
+
+        /// <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 int Remove(string name)
+        {
+            return RemoveAll(p => p.Name == name);
+        }
+
+        public string Get(string name)
+        {
+            return GetValues(name).FirstOrDefault();
+        }
+
+        public string[] GetValues(string name)
+        {
+            var stringComparison = GetStringComparison();
+
+            return this.Where(p => string.Equals(p.Name, name, stringComparison)).Select(p => p.Value).ToArray();
+        }
+
+        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 { return this.Select(i => i.Name); }
+        }
+
+        /// <summary>
+        /// Gets or sets a query parameter value by name. A query may contain multiple values of the same name
+        /// (i.e. "x=1&amp;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 { return Get(name); }
+            set
+            {
+                Set(name, value);
+                //var parameters = this.Where(p => p.Name == name).ToArray();
+                //var values = new[] { value };
+
+                //for (int i = 0; ; i++)
+                //{
+                //    if (i < parameters.Length && i < values.Length)
+                //    {
+                //        if (values[i] == null)
+                //            Remove(parameters[i]);
+                //        else if (values[i] is NameValuePair)
+                //            this[IndexOf(parameters[i])] = (NameValuePair)values[i];
+                //        else
+                //            parameters[i].Value = values[i];
+                //    }
+                //    else if (i < parameters.Length)
+                //        Remove(parameters[i]);
+                //    else if (i < values.Length)
+                //    {
+                //        if (values[i] != null)
+                //        {
+                //            if (values[i] is NameValuePair)
+                //                Add((NameValuePair)values[i]);
+                //            else
+                //                Add(name, values[i]);
+                //        }
+                //    }
+                //    else
+                //        break;
+                //}
+            }
+        }
+    }
+}