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293 lines (255 loc) · 9.65 KB
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using BlogEngine.Core.Data.Contracts;
using BlogEngine.Core.Data.Models;
using BlogEngine.Core.Data.Services;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Dynamic;
using System.Web;
using System.Web.Security;
namespace BlogEngine.Core.Data
{
/// <summary>
/// Comments repository
/// </summary>
public class CommentsRepository : ICommentsRepository
{
/// <summary>
/// Comments list
/// </summary>
/// <param name="commentType">Comment type</param>
/// <param name="take">Items to take</param>
/// <param name="skip">Items to skip</param>
/// <param name="filter">Filter expression</param>
/// <param name="order">Sort order</param>
/// <returns>List of comments</returns>
public IEnumerable<CommentItem> GetComments(CommentType commentType = CommentType.All, int take = 10, int skip = 0, string filter = "", string order = "")
{
if (!Security.IsAuthorizedTo(Rights.ViewPublicComments))
throw new UnauthorizedAccessException();
if (string.IsNullOrEmpty(filter)) filter = "1==1";
if (string.IsNullOrEmpty(order)) order = "DateCreated desc";
var items = new List<Comment>();
var query = items.AsQueryable().Where(filter);
var comments = new List<CommentItem>();
var all = Security.IsAuthorizedTo(Rights.EditOtherUsersPosts);
foreach (var p in Post.Posts)
{
if (all || p.Author.ToLower() == Security.CurrentUser.Identity.Name.ToLower())
{
switch (commentType)
{
case CommentType.Pending:
items.AddRange(p.NotApprovedComments);
break;
case CommentType.Pingback:
items.AddRange(p.Pingbacks);
break;
case CommentType.Spam:
items.AddRange(p.SpamComments);
break;
case CommentType.Approved:
items.AddRange(p.ApprovedComments);
break;
default:
items.AddRange(p.Comments);
break;
}
}
}
// if take passed in as 0, return all
if (take == 0) take = items.Count;
var itemList = query.OrderBy(order).Skip(skip).Take(take).ToList();
foreach (var item in itemList)
{
comments.Add(Json.GetComment(item, itemList));
}
return comments;
}
/// <summary>
/// Single commnet by ID
/// </summary>
/// <param name="id">
/// Comment id
/// </param>
/// <returns>
/// A JSON Comment
/// </returns>
public CommentItem FindById(Guid id)
{
if (!Security.IsAuthorizedTo(Rights.ViewPublicComments))
throw new UnauthorizedAccessException();
return (from p in Post.Posts
from c in p.AllComments
where c.Id == id
select Json.GetComment(c, p.AllComments)).FirstOrDefault();
}
/// <summary>
/// Add item
/// </summary>
/// <param name="item">Comment</param>
/// <returns>Comment object</returns>
public CommentItem Add(CommentItem item)
{
if (!Security.IsAuthorizedTo(Rights.CreateComments))
throw new UnauthorizedAccessException();
var c = new Comment();
try
{
var post = Post.Posts.Where(p => p.Id == item.PostId).FirstOrDefault();
c.Id = Guid.NewGuid();
c.ParentId = item.ParentId;
c.IsApproved = item.IsApproved;
c.Content = HttpUtility.HtmlAttributeEncode(item.Content);
if (string.IsNullOrEmpty(item.Author))
{
c.Author = Security.CurrentUser.Identity.Name;
var profile = AuthorProfile.GetProfile(c.Author);
if(profile != null && !string.IsNullOrEmpty(profile.DisplayName))
{
c.Author = profile.DisplayName;
}
}
if (string.IsNullOrEmpty(item.Email))
c.Email = Membership.Provider.GetUser(Security.CurrentUser.Identity.Name, true).Email;
c.IP = Utils.GetClientIP();
c.DateCreated = DateTime.Now;
c.Parent = post;
post.AddComment(c);
post.Save();
var newComm = post.Comments.Where(cm => cm.Content == c.Content).FirstOrDefault();
return Json.GetComment(newComm, post.Comments);
}
catch (Exception ex)
{
Utils.Log("Core.Data.CommentsRepository.Add", ex);
return null;
}
}
/// <summary>
/// Update item
/// </summary>
/// <param name="item">Item to update</param>
/// <param name="action">Action</param>
/// <returns>True on success</returns>
public bool Update(CommentItem item, string action)
{
if (!Security.IsAuthorizedTo(Rights.ModerateComments))
throw new UnauthorizedAccessException();
foreach (var p in Post.Posts.ToArray())
{
foreach (var c in p.Comments.Where(c => c.Id == item.Id).ToArray())
{
if (action == "approve")
{
c.IsApproved = true;
c.IsSpam = false;
p.DateModified = DateTime.Now;
p.Save();
return true;
}
if (action == "unapprove")
{
c.IsApproved = false;
c.IsSpam = true;
p.DateModified = DateTime.Now;
p.Save();
return true;
}
c.Content = item.Content;
c.Author = item.Author;
c.Email = item.Email;
c.Website = string.IsNullOrEmpty(item.Website) ? null : new Uri(item.Website);
if (item.IsPending)
{
c.IsApproved = false;
c.IsSpam = false;
}
if (item.IsApproved)
{
c.IsApproved = true;
c.IsSpam = false;
}
if (item.IsSpam)
{
c.IsApproved = false;
c.IsSpam = true;
}
// need to mark post as "dirty"
p.DateModified = DateTime.Now;
p.Save();
return true;
}
}
return false;
}
/// <summary>
/// Delete item
/// </summary>
/// <param name="id">Item ID</param>
/// <returns>True on success</returns>
public bool Remove(Guid id)
{
if (!Security.IsAuthorizedTo(Rights.ModerateComments))
throw new UnauthorizedAccessException();
foreach (var p in Post.Posts.ToArray())
{
Comment item = (from cmn in p.AllComments
where cmn.Id == id select cmn).FirstOrDefault();
if (item != null)
{
p.RemoveComment(item);
p.DateModified = DateTime.Now;
p.Save();
return true;
}
}
return false;
}
/// <summary>
/// Delete all comments
/// </summary>
/// <param name="commentType">Pending or spam</param>
/// <returns>True on success</returns>
public bool DeleteAll(string commentType)
{
if (!Security.IsAuthorizedTo(Rights.ModerateComments))
throw new System.UnauthorizedAccessException();
if (commentType == "pending")
DeletePending();
if (commentType == "spam")
DeleteSpam();
return true;
}
#region Private methods
// delete all pending comments
private void DeletePending()
{
var posts = Post.ApplicablePosts.Where(p => !p.IsDeleted && p.IsPublished);
foreach (var p in posts.ToArray())
{
foreach (var c in p.NotApprovedComments.Where(c => !c.IsSpam && !c.IsDeleted))
{
p.RemoveComment(c, false);
}
p.DateModified = DateTime.Now;
p.Save();
}
}
// delete all spam comments
private void DeleteSpam()
{
var posts = Post.ApplicablePosts.Where(p => !p.IsDeleted && p.IsPublished);
foreach (var p in posts.ToArray())
{
foreach (var c in p.SpamComments.Where(c => !c.IsDeleted))
{
p.RemoveComment(c, false);
}
p.DateModified = DateTime.Now;
p.Save();
}
}
#endregion
}
}