CookieCollection.cs

using System.Collections;
using System.Runtime.Serialization;

namespace System.Net
{
    [Serializable]
    [global::__DynamicallyInvokable]
    public class CookieCollection : ICollection, IEnumerable
    {
        internal enum Stamp
        {
            Check,
            Set,
            SetToUnused,
            SetToMaxUsed
        }

        private class CookieCollectionEnumerator : IEnumerator
        {
            private CookieCollection m_cookies;

            private int m_count;

            private int m_index = -1;

            private int m_version;

            object IEnumerator.Current
            {
                get
                {
                    if (m_index < 0 || m_index >= m_count)
                    {
                        throw new InvalidOperationException(SR.GetString("InvalidOperation_EnumOpCantHappen"));
                    }
                    if (m_version != m_cookies.m_version)
                    {
                        throw new InvalidOperationException(SR.GetString("InvalidOperation_EnumFailedVersion"));
                    }
                    return m_cookies[m_index];
                }
            }

            internal CookieCollectionEnumerator(CookieCollection cookies)
            {
                m_cookies = cookies;
                m_count = cookies.Count;
                m_version = cookies.m_version;
            }

            bool IEnumerator.MoveNext()
            {
                if (m_version != m_cookies.m_version)
                {
                    throw new InvalidOperationException(SR.GetString("InvalidOperation_EnumFailedVersion"));
                }
                if (++m_index < m_count)
                {
                    return true;
                }
                m_index = m_count;
                return false;
            }

            void IEnumerator.Reset()
            {
                m_index = -1;
            }
        }

        internal int m_version;

        private ArrayList m_list = new ArrayList();

        private DateTime m_TimeStamp = DateTime.MinValue;

        private bool m_has_other_versions;

        [OptionalField]
        private bool m_IsReadOnly;

        public bool IsReadOnly => m_IsReadOnly;

        public Cookie this[int index]
        {
            get
            {
                if (index < 0 || index >= m_list.Count)
                {
                    throw new ArgumentOutOfRangeException("index");
                }
                return (Cookie)m_list[index];
            }
        }

        [global::__DynamicallyInvokable]
        public Cookie this[string name]
        {
            [global::__DynamicallyInvokable]
            get
            {
                foreach (Cookie item in m_list)
                {
                    if (string.Compare(item.Name, name, StringComparison.OrdinalIgnoreCase) == 0)
                    {
                        return item;
                    }
                }
                return null;
            }
        }

        [global::__DynamicallyInvokable]
        public int Count
        {
            [global::__DynamicallyInvokable]
            get
            {
                return m_list.Count;
            }
        }

        public bool IsSynchronized => false;

        public object SyncRoot => this;

        internal bool IsOtherVersionSeen => m_has_other_versions;

        [global::__DynamicallyInvokable]
        public CookieCollection()
        {
            m_IsReadOnly = true;
        }

        internal CookieCollection(bool IsReadOnly)
        {
            m_IsReadOnly = IsReadOnly;
        }

        [global::__DynamicallyInvokable]
        public void Add(Cookie cookie)
        {
            if (cookie == null)
            {
                throw new ArgumentNullException("cookie");
            }
            m_version++;
            int num = IndexOf(cookie);
            if (num == -1)
            {
                m_list.Add(cookie);
            }
            else
            {
                m_list[num] = cookie;
            }
        }

        [global::__DynamicallyInvokable]
        public void Add(CookieCollection cookies)
        {
            if (cookies == null)
            {
                throw new ArgumentNullException("cookies");
            }
            foreach (Cookie cooky in cookies)
            {
                Add(cooky);
            }
        }

        public void CopyTo(Array array, int index)
        {
            m_list.CopyTo(array, index);
        }

        public void CopyTo(Cookie[] array, int index)
        {
            m_list.CopyTo(array, index);
        }

        internal DateTime TimeStamp(Stamp how)
        {
            switch (how)
            {
            case Stamp.Set:
                m_TimeStamp = DateTime.Now;
                break;
            case Stamp.SetToMaxUsed:
                m_TimeStamp = DateTime.MaxValue;
                break;
            case Stamp.SetToUnused:
                m_TimeStamp = DateTime.MinValue;
                break;
            }
            return m_TimeStamp;
        }

        internal int InternalAdd(Cookie cookie, bool isStrict)
        {
            int result = 1;
            if (isStrict)
            {
                IComparer comparer = Cookie.GetComparer();
                int num = 0;
                foreach (Cookie item in m_list)
                {
                    if (comparer.Compare(cookie, item) == 0)
                    {
                        result = 0;
                        if (item.Variant <= cookie.Variant)
                        {
                            m_list[num] = cookie;
                        }
                        break;
                    }
                    num++;
                }
                if (num == m_list.Count)
                {
                    m_list.Add(cookie);
                }
            }
            else
            {
                m_list.Add(cookie);
            }
            if (cookie.Version != 1)
            {
                m_has_other_versions = true;
            }
            return result;
        }

        internal int IndexOf(Cookie cookie)
        {
            IComparer comparer = Cookie.GetComparer();
            int num = 0;
            foreach (Cookie item in m_list)
            {
                if (comparer.Compare(cookie, item) == 0)
                {
                    return num;
                }
                num++;
            }
            return -1;
        }

        internal void RemoveAt(int idx)
        {
            m_list.RemoveAt(idx);
        }

        [global::__DynamicallyInvokable]
        public IEnumerator GetEnumerator()
        {
            return new CookieCollectionEnumerator(this);
        }
    }
}