public HttpResponseMessage PostRegisterUser([FromBody]UserDto userDto)
{
var responseMsg = this.PerformOperationAndHandleExceptions(
() =>
{
if (userDto == null)
{
throw new ArgumentException("Cannot register an empty user.");
}
this.ValidateUsername(userDto.Username);
this.ValidateNickname(userDto.DisplayName);
this.ValidateAuthCode(userDto.AuthCode);
var db = new BlogContext();
var user = db.Users.Where(u =>
u.Username.ToLower() == userDto.Username.ToLower() || u.DisplayName.ToLower() == userDto.DisplayName.ToLower())
.FirstOrDefault();
if (user != null)
{
throw new ApplicationException("User exist.");
}
user = new User()
{
DisplayName = userDto.DisplayName,
Username = userDto.Username,
AuthCode = userDto.AuthCode
};
db.Users.Add(user);
db.SaveChanges();
string sessionKey = this.GenerateSessionKey(user.Id);
user.SessionKey = sessionKey;
db.SaveChanges();
var userLogedIn = new UserLogedDto()
{
DisplayName = user.DisplayName,
SessionKey = sessionKey
};
var response = this.Request.CreateResponse(HttpStatusCode.Created,
userLogedIn);
return response;
});
return responseMsg;
}
public HttpResponseMessage Get([FromUri]string sessionKey, [FromUri]int page, [FromUri]int count)
{
var responseMsg = this.PerformOperationAndHandleExceptions(
() =>
{
if (sessionKey.Length != SessionKeyLength)
{
throw new ArgumentException("Invalid session key.");
}
var db = new BlogContext();
var user = db.Users.Where(u => u.SessionKey == sessionKey).FirstOrDefault();
if (user == null)
{
throw new ApplicationException("Invalin session. Try to login.");
}
var allPosts = (from t in db.Posts
select new PostDto()
{
Id = t.Id,
Title = t.Title,
Content = t.Content,
PostedBy = t.User.Username,
PostDate = t.PostDate,
Tags = t.Tags.Select(tag => tag.TagText),
Comments = (from c in t.Comments
select new CommentDto()
{
Id = c.Id,
Text = c.Content,
PostDate = c.CommentDate,
CommentedBy = c.User.Username
})
}).ToList();
var response = this.Request.CreateResponse(HttpStatusCode.OK,
allPosts.OrderByDescending(d => d.PostDate)
.Skip(page * count).Take(count));
return response;
});
return responseMsg;
}
public HttpResponseMessage Get([FromUri]string sessionKey)
{
var responseMsg = this.PerformOperationAndHandleExceptions(
() =>
{
if (sessionKey.Length != SessionKeyLength)
{
throw new ArgumentException("Invalid session key.");
}
var db = new BlogContext();
var user = db.Users.Where(u => u.SessionKey == sessionKey).FirstOrDefault();
if (user == null)
{
throw new ApplicationException("Invalin session. Try to login.");
}
var allPosts = (from t in db.Tags
select new TagDto()
{
Id = t.Id,
Name = t.TagText,
Posts = db.Posts.Where(
p => p.Tags.Any(tag => tag.TagText.ToLower() == t.TagText.ToLower()))
.Count()
}).ToList();
var response = this.Request.CreateResponse(HttpStatusCode.OK,
allPosts.OrderByDescending(d => d.Name));
return response;
});
return responseMsg;
}
public HttpResponseMessage PutComment([FromUri]string sessionKey, [FromUri]int postId, [FromBody]CommentDto commentDto)
{
var responseMsg = this.PerformOperationAndHandleExceptions(
() =>
{
if (sessionKey.Length != SessionKeyLength)
{
throw new ArgumentException("Invalid session key.");
}
var db = new BlogContext();
var user = db.Users.Where(u => u.SessionKey == sessionKey).FirstOrDefault();
if (user == null)
{
throw new ApplicationException("Invalin session. Try to login.");
}
if (commentDto == null)
{
throw new ArgumentException("Comment is empty.");
}
if (commentDto.Text == null)
{
throw new ArgumentException("Comment text is empty.");
}
var postById = db.Posts.Where(p => p.Id == postId).FirstOrDefault();
if (postById == null)
{
throw new ApplicationException("Invalin post ID.");
}
Comment comment = new Comment() { Content = commentDto.Text, CommentDate = DateTime.Now, User = user };
postById.Comments.Add(comment);
db.SaveChanges();
var response = new HttpResponseMessage(HttpStatusCode.OK);
return response;
});
return responseMsg;
}
public HttpResponseMessage GetByTag([FromUri]string sessionKey, [FromUri]string tags)
{
var responseMsg = this.PerformOperationAndHandleExceptions(
() =>
{
if (sessionKey.Length != SessionKeyLength)
{
throw new ArgumentException("Invalid session key.");
}
if (tags == null)
{
throw new ArgumentException("Tags is empty.");
}
var db = new BlogContext();
var user = db.Users.Where(u => u.SessionKey == sessionKey).FirstOrDefault();
if (user == null)
{
throw new ApplicationException("Invalin session. Try to login.");
}
var listOfTags = tags.Split(new char[]{ ',' }, StringSplitOptions.RemoveEmptyEntries);
var listOfTagsLowerCase = new List<string>();
foreach (var tag in listOfTags)
{
listOfTagsLowerCase.Add(tag.ToLower());
}
var allPosts = (from t in db.Posts
where t.Tags.Any(tag => listOfTagsLowerCase.Contains(tag.TagText.ToLower()))
select new PostDto()
{
Id = t.Id,
Title = t.Title,
Content = t.Content,
PostedBy = t.User.Username,
PostDate = t.PostDate,
Tags = t.Tags.Select(tag => tag.TagText),
Comments = (from c in t.Comments
select new CommentDto()
{
Id = c.Id,
Text = c.Content,
PostDate = c.CommentDate,
CommentedBy = c.User.Username
})
}).ToList();
var response = this.Request.CreateResponse(HttpStatusCode.OK,
allPosts.OrderByDescending(d => d.PostDate));
return response;
});
return responseMsg;
}
public HttpResponseMessage Post([FromUri]string sessionKey, [FromBody]PostDto postDto)
{
var responseMsg = this.PerformOperationAndHandleExceptions(
() =>
{
var db = new BlogContext();
if (sessionKey.Length != SessionKeyLength)
{
throw new ArgumentException("Invalid session key.");
}
var user = db.Users.Where(u => u.SessionKey == sessionKey).FirstOrDefault();
if (user == null)
{
throw new ApplicationException("Invalin session. Try to login.");
}
if (postDto == null)
{
throw new ArgumentException("Cannot create empty post.");
}
if (postDto.Title == null)
{
throw new ArgumentException("Cannot create post without title");
}
if (postDto.Content == null)
{
throw new ArgumentException("Cannot create post without text");
}
var post = new Post()
{
Title = postDto.Title,
Content = postDto.Content,
PostDate = DateTime.Now
};
if (postDto.Tags != null)
{
foreach (var tag in postDto.Tags)
{
post.Tags.Add(new Tag() { TagText = tag });
}
}
var tagsFromTitle =
postDto.Title.Split(new char[]{ ' ', ',', '.', '?', '!' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var tag in tagsFromTitle)
{
post.Tags.Add(new Tag() { TagText = tag });
}
db.Posts.Add(post);
db.SaveChanges();
var responsPost = new PostCreateResponseDto() { Id = post.Id, Title = post.Title };
var response = this.Request.CreateResponse(HttpStatusCode.Created, responsPost);
return response;
});
return responseMsg;
}
public HttpResponseMessage LogoutUser([FromUri]string sessionKey)
{
var responseMsg = this.PerformOperationAndHandleExceptions(
() =>
{
if (sessionKey.Length != SessionKeyLength)
{
throw new ArgumentException("Invalid session key length.");
}
var db = new BlogContext();
var user = db.Users.Where(u => u.SessionKey == sessionKey).FirstOrDefault();
if (user == null)
{
throw new ArgumentException("Invalid session key.");
}
user.SessionKey = null;
db.SaveChanges();
var response = new HttpResponseMessage(HttpStatusCode.OK);
return response;
});
return responseMsg;
}
