// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System.ServiceModel.Channels;
 
namespace System.ServiceModel
{
    public class BasicHttpsBinding : HttpBindingBase
    {
        private WSMessageEncoding _messageEncoding = BasicHttpBindingDefaults.MessageEncoding;
        private BasicHttpsSecurity _basicHttpsSecurity;
 
        public BasicHttpsBinding() : this(BasicHttpsSecurity.DefaultMode) { }
 
        public BasicHttpsBinding(BasicHttpsSecurityMode securityMode)
        {
            _basicHttpsSecurity = new BasicHttpsSecurity();
            _basicHttpsSecurity.Mode = securityMode;
        }
 
        internal WSMessageEncoding MessageEncoding
        {
            get { return _messageEncoding; }
            set { _messageEncoding = value; }
        }
 
        public BasicHttpsSecurity Security
        {
            get
            {
                return _basicHttpsSecurity;
            }
 
            set
            {
                if (value == null)
                {
                    throw FxTrace.Exception.ArgumentNull("value");
                }
 
                _basicHttpsSecurity = value;
            }
        }
 
        internal override BasicHttpSecurity BasicHttpSecurity
        {
            get
            {
                return _basicHttpsSecurity.BasicHttpSecurity;
            }
        }
 
        internal override EnvelopeVersion GetEnvelopeVersion()
        {
            return EnvelopeVersion.Soap11;
        }
 
        public override IChannelFactory<TChannel> BuildChannelFactory<TChannel>(BindingParameterCollection parameters)
        {
            if ((BasicHttpSecurity.Mode == BasicHttpSecurityMode.Transport ||
                BasicHttpSecurity.Mode == BasicHttpSecurityMode.TransportCredentialOnly) &&
                BasicHttpSecurity.Transport.ClientCredentialType == HttpClientCredentialType.InheritedFromHost)
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(string.Format(SRServiceModel.HttpClientCredentialTypeInvalid, BasicHttpSecurity.Transport.ClientCredentialType)));
            }
 
            return base.BuildChannelFactory<TChannel>(parameters);
        }
 
        public override BindingElementCollection CreateBindingElements()
        {
            CheckSettings();
 
            // return collection of BindingElements
            BindingElementCollection bindingElements = new BindingElementCollection();
            // order of BindingElements is important
            // add security (*optional)
            SecurityBindingElement wsSecurity = BasicHttpSecurity.CreateMessageSecurity();
            if (wsSecurity != null)
            {
                bindingElements.Add(wsSecurity);
            }
            // add encoding
            if (MessageEncoding == WSMessageEncoding.Text)
                bindingElements.Add(TextMessageEncodingBindingElement);
            // add transport (http or https)
            bindingElements.Add(GetTransport());
 
            return bindingElements.Clone();
        }
    }
}