1 files changed, 144 insertions, 0 deletions
diff --git a/SocketHttpListener/Net/CookieHelper.cs b/SocketHttpListener/Net/CookieHelper.cs
new file mode 100644
index 000000000..470507d6b
--- /dev/null
+++ b/SocketHttpListener/Net/CookieHelper.cs
@@ -0,0 +1,144 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Net;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SocketHttpListener.Net
+{
+    public static class CookieHelper
+    {
+        internal static CookieCollection Parse(string value, bool response)
+        {
+            return response
+                ? parseResponse(value)
+                : null;
+        }
+
+        private static string[] splitCookieHeaderValue(string value)
+        {
+            return new List<string>(value.SplitHeaderValue(',', ';')).ToArray();
+        }
+
+        private static CookieCollection parseResponse(string value)
+        {
+            var cookies = new CookieCollection();
+
+            Cookie cookie = null;
+            var pairs = splitCookieHeaderValue(value);
+            for (int i = 0; i < pairs.Length; i++)
+            {
+                var pair = pairs[i].Trim();
+                if (pair.Length == 0)
+                    continue;
+
+                if (pair.StartsWith("version", StringComparison.OrdinalIgnoreCase))
+                {
+                    if (cookie != null)
+                        cookie.Version = Int32.Parse(pair.GetValueInternal("=").Trim('"'));
+                }
+                else if (pair.StartsWith("expires", StringComparison.OrdinalIgnoreCase))
+                {
+                    var buffer = new StringBuilder(pair.GetValueInternal("="), 32);
+                    if (i < pairs.Length - 1)
+                        buffer.AppendFormat(", {0}", pairs[++i].Trim());
+
+                    DateTime expires;
+                    if (!DateTime.TryParseExact(
+                      buffer.ToString(),
+                      new[] { "ddd, dd'-'MMM'-'yyyy HH':'mm':'ss 'GMT'", "r" },
+                      new CultureInfo("en-US"),
+                      DateTimeStyles.AdjustToUniversal | DateTimeStyles.AssumeUniversal,
+                      out expires))
+                        expires = DateTime.Now;
+
+                    if (cookie != null && cookie.Expires == DateTime.MinValue)
+                        cookie.Expires = expires.ToLocalTime();
+                }
+                else if (pair.StartsWith("max-age", StringComparison.OrdinalIgnoreCase))
+                {
+                    var max = Int32.Parse(pair.GetValueInternal("=").Trim('"'));
+                    var expires = DateTime.Now.AddSeconds((double)max);
+                    if (cookie != null)
+                        cookie.Expires = expires;
+                }
+                else if (pair.StartsWith("path", StringComparison.OrdinalIgnoreCase))
+                {
+                    if (cookie != null)
+                        cookie.Path = pair.GetValueInternal("=");
+                }
+                else if (pair.StartsWith("domain", StringComparison.OrdinalIgnoreCase))
+                {
+                    if (cookie != null)
+                        cookie.Domain = pair.GetValueInternal("=");
+                }
+                else if (pair.StartsWith("port", StringComparison.OrdinalIgnoreCase))
+                {
+                    var port = pair.Equals("port", StringComparison.OrdinalIgnoreCase)
+                               ? "\"\""
+                               : pair.GetValueInternal("=");
+
+                    if (cookie != null)
+                        cookie.Port = port;
+                }
+                else if (pair.StartsWith("comment", StringComparison.OrdinalIgnoreCase))
+                {
+                    if (cookie != null)
+                        cookie.Comment = pair.GetValueInternal("=").UrlDecode();
+                }
+                else if (pair.StartsWith("commenturl", StringComparison.OrdinalIgnoreCase))
+                {
+                    if (cookie != null)
+                        cookie.CommentUri = pair.GetValueInternal("=").Trim('"').ToUri();
+                }
+                else if (pair.StartsWith("discard", StringComparison.OrdinalIgnoreCase))
+                {
+                    if (cookie != null)
+                        cookie.Discard = true;
+                }
+                else if (pair.StartsWith("secure", StringComparison.OrdinalIgnoreCase))
+                {
+                    if (cookie != null)
+                        cookie.Secure = true;
+                }
+                else if (pair.StartsWith("httponly", StringComparison.OrdinalIgnoreCase))
+                {
+                    if (cookie != null)
+                        cookie.HttpOnly = true;
+                }
+                else
+                {
+                    if (cookie != null)
+                        cookies.Add(cookie);
+
+                    string name;
+                    string val = String.Empty;
+
+                    var pos = pair.IndexOf('=');
+                    if (pos == -1)
+                    {
+                        name = pair;
+                    }
+                    else if (pos == pair.Length - 1)
+                    {
+                        name = pair.Substring(0, pos).TrimEnd(' ');
+                    }
+                    else
+                    {
+                        name = pair.Substring(0, pos).TrimEnd(' ');
+                        val = pair.Substring(pos + 1).TrimStart(' ');
+                    }
+
+                    cookie = new Cookie(name, val);
+                }
+            }
+
+            if (cookie != null)
+                cookies.Add(cookie);
+
+            return cookies;
+        }
+    }
+}