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