/BlogEngine/DotNetSlave.BusinessLogic/Web/Controls/CommentViewBase.cs

namespace BlogEngine.Core.Web.Controls

{

    using System;

    using System.Globalization;

    using System.Linq;

    using System.Text;

    using System.Web.Security;

    using System.Web.UI;



    /// <summary>

    /// Inherit from this class when you are building the

    ///     commentview.ascx user control in your custom theme.

    /// </summary>

    /// <remarks>

    /// The class exposes a lot of functionality to the custom

    ///     comment control in the theme folder.

    /// </remarks>

    public class CommentViewBase : UserControl

    {

        #region Constants and Fields



        /// <summary>

        /// The flag image.

        /// </summary>

        private const string FlagImage =

            "<span class=\"adr\"><img src=\"{0}pics/flags/{1}.png\" class=\"country-name flag\" title=\"{2}\" alt=\"{2}\" /></span>";



/*

        /// <summary>

        /// The link.

        /// </summary>

        private const string Link = "<a href=\"{0}{1}\" rel=\"nofollow\">{2}</a>";

*/



/*

        /// <summary>

        /// The link regex.

        /// </summary>

        private static readonly Regex LinkRegex =

            new Regex(

                "((http://|www\\.)([A-Z0-9.-]{1,})\\.[0-9A-Z?;~&#=\\-_\\./]{2,})", 

                RegexOptions.Compiled | RegexOptions.IgnoreCase);

*/



        #endregion



        #region Properties



        /// <summary>

        ///     Gets or sets the Comment.

        /// </summary>

        /// <value>The comment.</value>

        public Comment Comment { get; set; }



        /// <summary>

        ///     Gets or sets the Post from which the comment belongs.

        /// </summary>

        /// <value>The Post object.</value>

        public Post Post { get; set; }



        /// <summary>

        ///     Gets the text of the comment.

        /// </summary>

        /// <value>The comment text.</value>

        public string Text

        {

            get

            {

                var arg = new ServingEventArgs(this.Comment.Content, ServingLocation.SinglePost);

                Comment.OnServing(this.Comment, arg);

                if (arg.Cancel)

                {

                    this.Visible = false;

                }



                var body = arg.Body.Replace("\n", "<br />");

                body = body.Replace("\t", "&nbsp;&nbsp;");

                body = body.Replace("  ", "&nbsp;&nbsp;");

                return body;

            }

        }



        /// <summary>

        ///     Gets a delete link to visitors that are authenticated

        ///     using the default membership provider.

        /// </summary>

        public string AdminLinks

        {

            get

            {

                if (Security.IsAuthorizedTo(Rights.ModerateComments))

                {

                    var sb = new StringBuilder();

                    sb.AppendFormat(" | <a class=\"email\" href=\"mailto:{0}\">{0}</a>", this.Comment.Email);

                    sb.AppendFormat(

                        " | <a href=\"http://www.domaintools.com/go/?service=whois&amp;q={0}/\">{0}</a>", 

                        this.Comment.IP);



                    if (this.Comment.Comments.Count > 0)

                    {

                        var confirmDelete = string.Format(

                            CultureInfo.InvariantCulture, 

                            Utils.Translate("areYouSure"), 

                            Utils.Translate("delete").ToLowerInvariant(), 

                            Utils.Translate("theComment"));

                        sb.AppendFormat(

                            " | <a href=\"javascript:void(0);\" onclick=\"if (confirm('{1}?')) location.href='?deletecomment={0}'\">{2}</a>", 

                            this.Comment.Id, 

                            confirmDelete, 

                            Utils.Translate("deleteKeepReplies"));



                        var confirmRepliesDelete = string.Format(

                            CultureInfo.InvariantCulture, 

                            Utils.Translate("areYouSure"), 

                            Utils.Translate("delete").ToLowerInvariant(), 

                            Utils.Translate("theComment"));

                        sb.AppendFormat(

                            " | <a href=\"javascript:void(0);\" onclick=\"if (confirm('{1}?')) location.href='?deletecommentandchildren={0}'\">{2}</a>", 

                            this.Comment.Id, 

                            confirmRepliesDelete, 

                            Utils.Translate("deletePlusReplies"));

                    }

                    else

                    {

                        var confirmDelete = string.Format(

                            CultureInfo.InvariantCulture, 

                            Utils.Translate("areYouSure"), 

                            Utils.Translate("delete").ToLowerInvariant(), 

                            Utils.Translate("theComment"));

                        sb.AppendFormat(

                            " | <a href=\"javascript:void(0);\" onclick=\"if (confirm('{1}?')) location.href='?deletecomment={0}'\">{2}</a>", 

                            this.Comment.Id, 

                            confirmDelete, 

                            Utils.Translate("delete"));

                    }



                    if (!this.Comment.IsApproved)

                    {

                        sb.AppendFormat(

                            " | <a href=\"?approvecomment={0}\">{1}</a>", this.Comment.Id, Utils.Translate("approve"));

                    }



                    return sb.ToString();

                }



                return string.Empty;

            }

        }



        /// <summary>

        ///     Gets the flag of the country from which the comment was written.

        ///     <remarks>

        ///         If the country hasn't been resolved from the authors IP address or

        ///         the flag does not exist for that country, nothing is displayed.

        ///     </remarks>

        /// </summary>

        public string Flag

        {

            get

            {

                if (!string.IsNullOrEmpty(this.Comment.Country))

                {

                    // return "<img src=\"" + Utils.RelativeWebRoot + "pics/flags/" + Comment.Country + ".png\" class=\"country-name flag\" title=\"" + Comment.Country + "\" alt=\"" + Comment.Country + "\" />";

                    return string.Format(

                        FlagImage, Utils.RelativeWebRoot, this.Comment.Country, FindCountry(this.Comment.Country));

                }



                return null;

            }

        }



        /// <summary>

        ///     Gets a link that lets a user reply to a specific comment

        /// </summary>

        public string ReplyToLink

        {

            get

            {

                return (((BlogSettings.Instance.IsCommentsEnabled && BlogSettings.Instance.IsCommentNestingEnabled) &&

                         this.Post.HasCommentsEnabled) && this.Comment.IsApproved) &&

                       (BlogSettings.Instance.DaysCommentsAreEnabled <= 0 ||

                        this.Post.DateCreated.AddDays(BlogSettings.Instance.DaysCommentsAreEnabled) >= DateTime.Now.Date)

                           ? string.Format(

                               "<a href=\"javascript:void(0);\" class=\"reply-to-comment\" onclick=\"BlogEngine.replyToComment('{0}');\">{1}</a>", 

                               this.Comment.Id, 

                               Utils.Translate("replyToThis"))

                           : string.Empty;

            }

        }



        #endregion



        #region Methods



        /// <summary>

        /// The comment will be processed when invoked, rather than waiting

        /// for the Load event to occur.

        /// </summary>

        public virtual void RenderComment() { }



        /// <summary>

        /// For styling, indicates if the comment is odd or even.

        /// </summary>

        public bool IsOdd { get; set; }



        /// <summary>

        /// Displays the Gravatar image that matches the specified email.

        /// </summary>

        /// <param name="size">

        /// The image size.

        /// </param>

        /// <returns>

        /// The gravatar.

        /// </returns>

        public string Gravatar(int size)

        {

            return Avatar.GetAvatarImageTag(size, this.Comment.Email, this.Comment.Website, this.Comment.Avatar, this.Comment.Author);

        }



        /// <summary>

        /// Examines the comment body for any links and turns them

        ///     automatically into one that can be clicked.

        /// </summary>

        /// <param name="body">

        /// The body string.

        /// </param>

        /// <returns>

        /// The resolve links.

        /// </returns>

        [Obsolete("Use the Text property instead. This method will be removed in a future version.")]

        public string ResolveLinks(string body)

        {

            return this.Text;

        }



        /// <summary>

        /// Finds country.

        /// </summary>

        /// <param name="isoCode">

        /// The iso code.

        /// </param>

        /// <returns>

        /// The find country.

        /// </returns>

        private static string FindCountry(string isoCode)

        {

            foreach (var ri in

                CultureInfo.GetCultures(CultureTypes.SpecificCultures).Select(ci => new RegionInfo(ci.Name)).Where(

                    ri => ri.TwoLetterISORegionName.Equals(isoCode, StringComparison.OrdinalIgnoreCase)))

            {

                return ri.DisplayName;

            }



            return isoCode;

        }



        #endregion

    }

}