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using Core.Contexts;
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using Core.Entities;
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using Models.Annotations;
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using Models.Enums;
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using Serilog;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using Microsoft.EntityFrameworkCore;
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using AutoMapper;
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using Models.Tags;
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using Ganss.XSS;
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using HtmlAgilityPack;
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using System.Text.RegularExpressions;
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using Newtonsoft.Json;
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using Core.GraphUtils;
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namespace Core.Services.AnnotationService
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{
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public class AnnotationServiceEF : IAnnotationService
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{
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private readonly DatabaseContext context;
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private readonly ILogger logger;
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private readonly IMapper mapper;
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private const string TAG_ID_ATTRIBUTE_NAME = "aswi-tag-id";
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private const string TAG_INSTANCE_ATTRIBUTE_NAME = "aswi-tag-instance";
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private const string TAG_EF_ID_ATTRIBUTE_NAME = "aswi-tag-ef-id";
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public AnnotationServiceEF(DatabaseContext context, ILogger logger, IMapper mapper)
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{
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this.context = context;
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this.logger = logger;
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this.mapper = mapper;
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}
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public void CreateDocumentAnnotations(AnnotationsAddRequest request, Guid clientUserId)
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{
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User addingUser = context.Users.Single(u => u.Id == clientUserId);
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// Check the documents exist
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var documents = context.Documents.Where(d => request.DocumentIdList.Contains(d.Id)).ToList();
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if (documents.Count() != request.DocumentIdList.Count)
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{
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logger.Information($"Received a non-existent Document ID when assigning documents to users");
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throw new InvalidOperationException($"{request.DocumentIdList.Count - documents.Count()} of the received documents do not exist");
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}
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var users = context.Users.Where(u => request.UserIdList.Contains(u.Id)).ToList();
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foreach (var user in users)
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{
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var userAnnotatedDocuments = context.Annotations.Where(a => a.User == user).Select(a => a.Document).ToList();
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foreach (var doc in documents)
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{
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if (userAnnotatedDocuments.Contains(doc))
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{
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logger.Information($"User {user.Username} has already been assigned the document {doc.Id}, ignoring");
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continue;
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}
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context.Annotations.Add(new Annotation()
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{
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User = user,
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UserAssigned = addingUser,
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DateAssigned = DateTime.Now,
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DateLastChanged = DateTime.Now,
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Document = doc,
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State = EState.NEW,
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Note = ""
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});
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}
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}
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context.SaveChanges();
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}
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public AnnotationListResponse GetUserAnnotations(Guid userId)
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{
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var annotations = context.Annotations.Where(a => a.User.Id == userId).Include(a => a.Document).ToList();
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var documentIds = annotations.Select(a => a.Document.Id).ToList();
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var documents = context.Documents.Where(d => documentIds.Contains(d.Id));
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var infos = new List<AnnotationListInfo>();
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var annotationsDocuments = annotations.Zip(documents, (a, d) => new { Annotation = a, Document = d });
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foreach (var ad in annotationsDocuments)
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{
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infos.Add(new AnnotationListInfo()
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{
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AnnotationId = ad.Annotation.Id,
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DocumentName = ad.Document.Name,
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State = ad.Annotation.State
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});
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}
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return new AnnotationListResponse()
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{
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Annotations = infos
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};
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}
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public AnnotationInfo GetAnnotation(Guid annotationId, Guid userId, ERole userRole)
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{
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var annotation = context.Annotations
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.Where(a => a.Id == annotationId)
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.Include(a => a.User)
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.Include(a => a.Document).ThenInclude(d => d.Content)
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.First();
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if (userRole < ERole.ADMINISTRATOR)
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{
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if (annotation.User.Id != userId)
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{
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throw new UnauthorizedAccessException($"User {userId} does not have assigned annotation {annotationId}");
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}
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}
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var documentContent = context.Documents.Where(d => d.Id == annotation.Document.Id).Select(d => d.Content).First();
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var tags = context.AnnotationTags.Where(at => at.Annotation.Id == annotationId)
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.Include(at => at.Tag)
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.ThenInclude(t => t.Category)
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.Include(at => at.SubTag)
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.ToList();
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List<TagInstanceInfo> tagInstanceInfos = new();
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foreach (var tag in tags)
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{
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var tagInstance = mapper.Map<TagInstanceInfo>(tag);
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tagInstanceInfos.Add(tagInstance);
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}
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var docToRender = "";
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if (annotation.CachedDocumentHTML == "")
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{
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docToRender = FullPreprocessHTML(documentContent.Content, tags);
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annotation.CachedStartPositions = JsonConvert.SerializeObject(TagStartPositions);
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annotation.CachedLengths = JsonConvert.SerializeObject(TagStartLengths);
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annotation.CachedClosingPositions = JsonConvert.SerializeObject(TagClosingPositions);
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annotation.CachedClosingLengths = JsonConvert.SerializeObject(TagClosingLengths);
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//annotation.CachedNodeDict = JsonConvert.SerializeObject(NodeDict);
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annotation.ModifiedType = EModified.NONE;
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annotation.CachedDocumentHTML = docToRender;
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context.SaveChanges();
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}
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else
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{
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docToRender = annotation.CachedDocumentHTML;
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TagStartPositions = JsonConvert.DeserializeObject<List<int>>(annotation.CachedStartPositions);
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TagStartLengths = JsonConvert.DeserializeObject<List<int>>(annotation.CachedLengths);
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TagClosingPositions = JsonConvert.DeserializeObject<List<int>>(annotation.CachedClosingPositions);
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TagClosingLengths = JsonConvert.DeserializeObject<List<int>>(annotation.CachedClosingLengths);
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// The annotation has been modified and we need to either add the new tag or remove the tag
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if (annotation.ModifiedType != EModified.NONE)
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{
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if (annotation.ModifiedType == EModified.ADDED)
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{
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var lastModifiedTag = context.AnnotationTags.Where(at => at.Id == annotation.LastModifiedTagId).First();
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docToRender = PartialPreprocessHTMLAddTag(docToRender, documentContent.Content, lastModifiedTag, tags);
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}
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else if (annotation.ModifiedType == EModified.REMOVED)
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{
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docToRender = PartialPreprocessHTMLRemoveTag(docToRender, documentContent.Content, new AnnotationTag() { Id = annotation.LastModifiedTagId.Value }, tags);
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}
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annotation.ModifiedType = EModified.NONE;
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annotation.CachedStartPositions = JsonConvert.SerializeObject(TagStartPositions);
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annotation.CachedLengths = JsonConvert.SerializeObject(TagStartLengths);
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annotation.CachedClosingPositions = JsonConvert.SerializeObject(TagClosingPositions);
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annotation.CachedClosingLengths = JsonConvert.SerializeObject(TagClosingLengths);
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annotation.CachedDocumentHTML = docToRender;
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//annotation.CachedNodeDict = JsonConvert.SerializeObject(NodeDict);
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context.SaveChanges();
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}
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}
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// We probably cannot use AutoMapper since we are dealing with too many different entities
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AnnotationInfo annotationInfo = new()
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{
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SourceDocumentContent = documentContent.Content,
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DocumentToRender = docToRender,
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TagStartPositions = TagStartPositions.ToArray(),
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TagLengths = TagStartLengths.ToArray(),
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Note = annotation.Note,
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State = annotation.State,
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Type = IsHtml(documentContent.Content) ? EDocumentType.HTML : EDocumentType.TEXT,
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TagInstances = tagInstanceInfos
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};
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NodeDict.Clear();
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return annotationInfo;
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}
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private List<int> TagStartPositions = new();
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private List<int> TagStartLengths = new();
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private List<int> TagClosingPositions = new();
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private List<int> TagClosingLengths = new();
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private Dictionary<HtmlNode, HtmlNode> NodeDict = new();
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/*
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* Full HTML Preprocessing -------------------------------------------------------------------------------
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*/
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private string FullPreprocessHTML(string htmlSource, List<AnnotationTag> tags)
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{
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var docOriginal = new HtmlDocument();
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docOriginal.LoadHtml(htmlSource);
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var docToEdit = new HtmlDocument();
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docToEdit.LoadHtml(htmlSource);
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var descendantsOriginal = docOriginal.DocumentNode.DescendantsAndSelf();
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var descendantsToEdit = docToEdit.DocumentNode.DescendantsAndSelf().ToList();
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int currentId = 0;
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FillNodeDict(descendantsOriginal, descendantsToEdit);
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AssignIdsToOriginalDocument(descendantsOriginal, ref currentId);
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WrapTextInSpan(descendantsOriginal, docToEdit);
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int descCount = descendantsToEdit.Count;
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foreach (var tag in tags)
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{
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int i = 0;
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List<HtmlNode> addedForSelection = new();
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while (i < descCount)
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{
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for (; i < descCount; i++)
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{
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var node = descendantsToEdit.ElementAt(i);
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if (!node.Name.Contains("#text") || addedForSelection.Contains(node) || addedForSelection.Contains(node.ParentNode) ||
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node.ParentNode.Name == "style")
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{
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continue;
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}
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int nodeId = node.ParentNode.GetAttributeValue(TAG_ID_ATTRIBUTE_NAME, -1);
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var start = TagStartPositions[nodeId] + TagStartLengths[nodeId];
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var end = TagClosingPositions[nodeId];
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int selectionStart = tag.Position;
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int selectionEnd = tag.Position + tag.Length;
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if (selectionStart < end && selectionEnd > start)
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{
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if (selectionStart <= start && selectionEnd >= end)
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{
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addedForSelection.Add(SolveFullFill(node, selectionStart, selectionEnd, start, end, docToEdit, tag));
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}
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else if (selectionStart <= start)
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{
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addedForSelection.AddRange(SolveRightGap(node, selectionStart, selectionEnd, start, end, docToEdit, tag));
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}
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else if (selectionEnd >= end)
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{
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addedForSelection.AddRange(SolveLeftGap(node, selectionStart, selectionEnd, start, end, docToEdit, tag));
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}
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else
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{
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addedForSelection.AddRange(SolveLeftRightGap(node, selectionStart, selectionEnd, start, end, docToEdit, tag));
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}
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descendantsToEdit = docToEdit.DocumentNode.DescendantsAndSelf().ToList();
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descCount = descendantsToEdit.Count;
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break;
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}
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}
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}
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}
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string docToRender = docToEdit.DocumentNode.OuterHtml;
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HtmlSanitizer sanitizer = new HtmlSanitizer();
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sanitizer.AllowedAttributes.Clear();
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sanitizer.AllowedAttributes.Add(TAG_ID_ATTRIBUTE_NAME);
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sanitizer.AllowedAttributes.Add(TAG_INSTANCE_ATTRIBUTE_NAME);
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sanitizer.AllowedAttributes.Add("end");
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sanitizer.AllowedAttributes.Add("start");
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sanitizer.AllowedAttributes.Add("class");
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285
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if (sanitizer.AllowedTags.Contains("script"))
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{
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sanitizer.AllowedTags.Remove("script");
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}
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if (!sanitizer.AllowedTags.Contains("style"))
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{
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sanitizer.AllowedTags.Add("style");
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}
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docToRender = sanitizer.Sanitize(docToRender);
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HtmlDocument doc = new HtmlDocument();
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doc.LoadHtml(docToRender);
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var cssNode = GenerateCSS(doc, tags);
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doc.DocumentNode.ChildNodes.Insert(0, cssNode);
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300
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return doc.DocumentNode.OuterHtml;
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}
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302
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303
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private HtmlNode SolveFullFill(HtmlNode node, int selectionStart, int selectionEnd, int start, int end, HtmlDocument docToEdit, AnnotationTag tag)
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{
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// full fill
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string textSelected = node.InnerText;
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307
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308
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var parentNode = node.ParentNode;
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int nodeIndex = parentNode.ChildNodes.IndexOf(node);
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parentNode.ChildNodes.RemoveAt(nodeIndex);
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311
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312
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EPosition markerPosition = EPosition.MARK_NONE;
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313
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if (selectionEnd == end && selectionStart == start)
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{
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315
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markerPosition = EPosition.MARK_LEFT_RIGHT;
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}
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317
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318
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HtmlNode spanSelected = CreateSpan(docToEdit, textSelected, TagStartPositions.Count, tag.Instance, tag.Id, start, markerPosition);
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319
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parentNode.ChildNodes.Insert(nodeIndex, spanSelected);
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320
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321
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return spanSelected;
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322
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}
|
323
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324
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private List<HtmlNode> SolveRightGap(HtmlNode node, int selectionStart, int selectionEnd, int start, int end, HtmlDocument docToEdit,
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325
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AnnotationTag tag)
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326
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{
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327
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// partial fill, end gap
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328
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string text = node.InnerText;
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329
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string textAfter = text.Substring(Math.Min(selectionStart - start + tag.Length, text.Length));
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330
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string textSelected = text.Substring(0, selectionEnd - start);
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331
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332
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var parentNode = node.ParentNode;
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333
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int nodeIndex = parentNode.ChildNodes.IndexOf(node);
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parentNode.ChildNodes.RemoveAt(nodeIndex);
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335
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336
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int spanSelectedStart = start;
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337
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int spanAfterStart = start + textSelected.Length;
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338
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339
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HtmlNode spanSelected = CreateSpan(docToEdit, textSelected, TagStartPositions.Count, tag.Instance, tag.Id, spanSelectedStart, EPosition.MARK_RIGHT);
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340
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parentNode.ChildNodes.Insert(nodeIndex, spanSelected);
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341
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342
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HtmlNode spanAfter = CreateSpan(docToEdit, textAfter, TagStartPositions.Count, null, null, spanAfterStart);
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343
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parentNode.ChildNodes.Insert(nodeIndex + 1, spanAfter);
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344
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345
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return new() { spanSelected, spanAfter };
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346
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}
|
347
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|
348
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private List<HtmlNode> SolveLeftGap(HtmlNode node, int selectionStart, int selectionEnd, int start, int end, HtmlDocument docToEdit,
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349
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AnnotationTag tag)
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350
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{
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351
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// partial fill, start gap
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352
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string text = node.InnerText;
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353
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string textBefore = text.Substring(0, selectionStart - start);
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354
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string textSelected = text.Substring(selectionStart - start, Math.Min(tag.Length, text.Length - textBefore.Length));
|
355
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356
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var parentNode = node.ParentNode;
|
357
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int nodeIndex = parentNode.ChildNodes.IndexOf(node);
|
358
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parentNode.ChildNodes.RemoveAt(nodeIndex);
|
359
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|
360
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int spanBeforeStart = start;
|
361
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int spanSelectedStart = start + textBefore.Length;
|
362
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|
363
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HtmlNode spanBefore = CreateSpan(docToEdit, textBefore, TagStartPositions.Count, null, null, spanBeforeStart);
|
364
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parentNode.ChildNodes.Insert(nodeIndex, spanBefore);
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365
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366
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HtmlNode spanSelected = CreateSpan(docToEdit, textSelected, TagStartPositions.Count, tag.Instance, tag.Id, spanSelectedStart, EPosition.MARK_LEFT);
|
367
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parentNode.ChildNodes.Insert(nodeIndex + 1, spanSelected);
|
368
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|
369
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return new() { spanSelected, spanBefore };
|
370
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}
|
371
|
|
372
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private List<HtmlNode> SolveLeftRightGap(HtmlNode node, int selectionStart, int selectionEnd, int start, int end, HtmlDocument docToEdit,
|
373
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AnnotationTag tag)
|
374
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{
|
375
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// partial fill, start gap end gap
|
376
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string text = node.InnerText;
|
377
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string textBefore = text.Substring(0, selectionStart - start);
|
378
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string textAfter = text.Substring(selectionStart - start + tag.Length);
|
379
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string textSelected = text.Substring(selectionStart - start, tag.Length);
|
380
|
|
381
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var parentNode = node.ParentNode;
|
382
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int nodeIndex = parentNode.ChildNodes.IndexOf(node);
|
383
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parentNode.ChildNodes.RemoveAt(nodeIndex);
|
384
|
|
385
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int spanBeforeStart = start;
|
386
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int spanSelectedStart = start + textBefore.Length;
|
387
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int spanAfterStart = start + textBefore.Length + textSelected.Length;
|
388
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|
389
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HtmlNode spanBefore = CreateSpan(docToEdit, textBefore, TagStartPositions.Count, null, null, spanBeforeStart);
|
390
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parentNode.ChildNodes.Insert(nodeIndex, spanBefore);
|
391
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|
392
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HtmlNode spanSelected = CreateSpan(docToEdit, textSelected, TagStartPositions.Count, tag.Instance, tag.Id, spanSelectedStart, EPosition.MARK_LEFT_RIGHT);
|
393
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parentNode.ChildNodes.Insert(nodeIndex + 1, spanSelected);
|
394
|
|
395
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HtmlNode spanAfter = CreateSpan(docToEdit, textAfter, TagStartPositions.Count, null, null, spanAfterStart);
|
396
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parentNode.ChildNodes.Insert(nodeIndex + 2, spanAfter);
|
397
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|
398
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return new() { spanSelected, spanBefore, spanAfter };
|
399
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}
|
400
|
|
401
|
private HtmlNode CreateSpan(HtmlDocument doc, string text, int tagId, Guid? instanceId, Guid? entityId, int startPosition, EPosition position = EPosition.MARK_NONE)
|
402
|
{
|
403
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HtmlNode span = doc.CreateElement("span");
|
404
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span.InnerHtml = text;
|
405
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TagStartPositions.Add(startPosition);
|
406
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TagStartLengths.Add(0);
|
407
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TagClosingPositions.Add(startPosition + text.Length);
|
408
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TagClosingLengths.Add(0);
|
409
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span.Attributes.Add(TAG_ID_ATTRIBUTE_NAME, tagId.ToString());
|
410
|
|
411
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if (instanceId != null)
|
412
|
{
|
413
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span.AddClass("annotation");
|
414
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span.Attributes.Add(TAG_INSTANCE_ATTRIBUTE_NAME, instanceId.Value.ToString());
|
415
|
span.Attributes.Add(TAG_EF_ID_ATTRIBUTE_NAME, entityId.ToString());
|
416
|
|
417
|
if (position == EPosition.MARK_LEFT || position == EPosition.MARK_LEFT_RIGHT)
|
418
|
{
|
419
|
span.Attributes.Add("start", "1");
|
420
|
}
|
421
|
if (position == EPosition.MARK_RIGHT || position == EPosition.MARK_LEFT_RIGHT)
|
422
|
{
|
423
|
span.Attributes.Add("end", "1");
|
424
|
}
|
425
|
}
|
426
|
|
427
|
return span;
|
428
|
}
|
429
|
|
430
|
private enum EPosition
|
431
|
{
|
432
|
MARK_LEFT = 5,
|
433
|
MARK_RIGHT = 3,
|
434
|
MARK_LEFT_RIGHT = 2,
|
435
|
MARK_NONE = 0
|
436
|
}
|
437
|
|
438
|
private void WrapTextInSpan(IEnumerable<HtmlNode> descendantsOriginal, HtmlDocument docToEdit)
|
439
|
{
|
440
|
foreach (var node in descendantsOriginal)
|
441
|
{
|
442
|
var originalNode = node;
|
443
|
var toEditNode = NodeDict[node];
|
444
|
|
445
|
if (originalNode.Name.Contains("#"))
|
446
|
{
|
447
|
continue;
|
448
|
}
|
449
|
else
|
450
|
{
|
451
|
bool onlyText = true;
|
452
|
bool onlySubtags = true;
|
453
|
|
454
|
foreach (var child in node.ChildNodes)
|
455
|
{
|
456
|
if (child.Name.Contains("#"))
|
457
|
{
|
458
|
onlySubtags = false;
|
459
|
}
|
460
|
else
|
461
|
{
|
462
|
onlyText = false;
|
463
|
}
|
464
|
}
|
465
|
|
466
|
if (onlyText || onlySubtags)
|
467
|
{
|
468
|
continue;
|
469
|
}
|
470
|
else
|
471
|
{
|
472
|
|
473
|
foreach (var child in node.ChildNodes)
|
474
|
{
|
475
|
if (child.Name.Contains("#text"))
|
476
|
{
|
477
|
HtmlNode coveringSpan = docToEdit.CreateElement("span");
|
478
|
coveringSpan.InnerHtml = child.InnerHtml;
|
479
|
TagStartPositions.Add(child.InnerStartIndex);
|
480
|
TagStartLengths.Add(0);
|
481
|
TagClosingPositions.Add(child.InnerStartIndex + child.InnerLength);
|
482
|
TagClosingLengths.Add(0);
|
483
|
coveringSpan.Attributes.Add(TAG_ID_ATTRIBUTE_NAME, (TagStartPositions.Count - 1).ToString());
|
484
|
|
485
|
var parent = NodeDict[node];
|
486
|
var index = parent.ChildNodes.IndexOf(NodeDict[child]);
|
487
|
|
488
|
parent.ChildNodes.RemoveAt(index);
|
489
|
parent.ChildNodes.Insert(index, coveringSpan);
|
490
|
}
|
491
|
}
|
492
|
}
|
493
|
}
|
494
|
}
|
495
|
}
|
496
|
|
497
|
private HtmlNode GenerateCSS(HtmlDocument docToEdit, List<AnnotationTag> tags)
|
498
|
{
|
499
|
HtmlNode style = docToEdit.CreateElement("style");
|
500
|
|
501
|
string inner = "span.annotation {border-bottom: 2px solid;}";
|
502
|
inner += "span {line-height: 30px}\n";
|
503
|
|
504
|
var tagPaddingDict = Intersections.ColorGraph(Intersections.FindIntersections(tags));
|
505
|
|
506
|
foreach (var tag in tags)
|
507
|
{
|
508
|
var padding = (tagPaddingDict[tag] + 1) * 2;
|
509
|
inner += $"span[{TAG_INSTANCE_ATTRIBUTE_NAME}=\"{tag.Instance}\"] {{ border-color:{tag.Tag.Color}; padding-bottom: {padding}px }}";
|
510
|
}
|
511
|
|
512
|
inner += "span[end=\"1\"] {border-end-end-radius: 0px; border-right: 1px solid darkgray}\n";
|
513
|
inner += "span[start=\"1\"] {border-end-start-radius: 0px; border-left: 1px solid darkgray}\n";
|
514
|
|
515
|
style.InnerHtml = inner;
|
516
|
return style;
|
517
|
}
|
518
|
|
519
|
private void AssignIdsToOriginalDocument(IEnumerable<HtmlNode> descendantsOriginal, ref int currentId)
|
520
|
{
|
521
|
foreach (var node in descendantsOriginal)
|
522
|
{
|
523
|
var originalNode = node;
|
524
|
var toEditNode = NodeDict[node];
|
525
|
|
526
|
if (originalNode.Name.Contains("#"))
|
527
|
{
|
528
|
continue;
|
529
|
}
|
530
|
else
|
531
|
{
|
532
|
TagStartPositions.Add(originalNode.OuterStartIndex);
|
533
|
TagStartLengths.Add(originalNode.InnerStartIndex - originalNode.OuterStartIndex);
|
534
|
currentId = TagStartPositions.Count - 1;
|
535
|
toEditNode.Attributes.Add(TAG_ID_ATTRIBUTE_NAME, currentId.ToString());
|
536
|
|
537
|
TagClosingPositions.Add(originalNode.InnerStartIndex + originalNode.InnerLength);
|
538
|
TagClosingLengths.Add((originalNode.OuterStartIndex + originalNode.OuterLength) - (originalNode.InnerStartIndex + originalNode.InnerLength));
|
539
|
}
|
540
|
}
|
541
|
}
|
542
|
|
543
|
private void FillNodeDict(IEnumerable<HtmlNode> descendantsOriginal, IEnumerable<HtmlNode> descendantsToEdit)
|
544
|
{
|
545
|
var zipped = descendantsOriginal.Zip(descendantsToEdit, (orig, toEdit) => new
|
546
|
{
|
547
|
Original = orig,
|
548
|
ToEdit = toEdit
|
549
|
});
|
550
|
foreach (var node in zipped)
|
551
|
{
|
552
|
var originalNode = node.Original;
|
553
|
var toEditNode = node.ToEdit;
|
554
|
NodeDict.Add(originalNode, toEditNode);
|
555
|
}
|
556
|
}
|
557
|
|
558
|
|
559
|
/*
|
560
|
* Full HTML Preprocessing -------------------------------------------------------------------------------
|
561
|
*/
|
562
|
|
563
|
/*
|
564
|
* Partial HTML Preprocessing ----------------------------------------------------------------------------
|
565
|
*/
|
566
|
|
567
|
private string PartialPreprocessHTMLAddTag(string htmlToEdit, string htmlOriginal, AnnotationTag tagToAdd, List<AnnotationTag> tags)
|
568
|
{
|
569
|
var docOriginal = new HtmlDocument();
|
570
|
docOriginal.LoadHtml(htmlOriginal);
|
571
|
var docToEdit = new HtmlDocument();
|
572
|
docToEdit.LoadHtml(htmlToEdit);
|
573
|
|
574
|
var descendantsToEdit = docToEdit.DocumentNode.DescendantsAndSelf().ToList();
|
575
|
RemoveCSS(docToEdit);
|
576
|
|
577
|
int i = 0;
|
578
|
List<HtmlNode> addedForSelection = new();
|
579
|
|
580
|
int descendantsCount = descendantsToEdit.Count();
|
581
|
while (i < descendantsCount)
|
582
|
{
|
583
|
for (; i < descendantsCount; i++)
|
584
|
{
|
585
|
var node = descendantsToEdit.ElementAt(i);
|
586
|
if (!node.Name.Contains("#text") || addedForSelection.Contains(node) || addedForSelection.Contains(node.ParentNode) ||
|
587
|
node.ParentNode.Name == "style")
|
588
|
{
|
589
|
continue;
|
590
|
}
|
591
|
|
592
|
int nodeId = node.ParentNode.GetAttributeValue(TAG_ID_ATTRIBUTE_NAME, -1);
|
593
|
|
594
|
var start = TagStartPositions[nodeId] + TagStartLengths[nodeId];
|
595
|
var end = TagClosingPositions[nodeId];
|
596
|
|
597
|
int selectionStart = tagToAdd.Position;
|
598
|
int selectionEnd = tagToAdd.Position + tagToAdd.Length;
|
599
|
|
600
|
if (selectionStart < end && selectionEnd > start)
|
601
|
{
|
602
|
if (selectionStart <= start && selectionEnd >= end)
|
603
|
{
|
604
|
addedForSelection.Add(SolveFullFill(node, selectionStart, selectionEnd, start, end, docToEdit, tagToAdd));
|
605
|
}
|
606
|
else if (selectionStart <= start)
|
607
|
{
|
608
|
addedForSelection.AddRange(SolveRightGap(node, selectionStart, selectionEnd, start, end, docToEdit, tagToAdd));
|
609
|
}
|
610
|
else if (selectionEnd >= end)
|
611
|
{
|
612
|
addedForSelection.AddRange(SolveLeftGap(node, selectionStart, selectionEnd, start, end, docToEdit, tagToAdd));
|
613
|
}
|
614
|
else
|
615
|
{
|
616
|
addedForSelection.AddRange(SolveLeftRightGap(node, selectionStart, selectionEnd, start, end, docToEdit, tagToAdd));
|
617
|
}
|
618
|
descendantsToEdit = docToEdit.DocumentNode.DescendantsAndSelf().ToList();
|
619
|
descendantsCount = descendantsToEdit.Count();
|
620
|
break;
|
621
|
}
|
622
|
}
|
623
|
}
|
624
|
|
625
|
var cssNode = GenerateCSS(docToEdit, tags);
|
626
|
docToEdit.DocumentNode.ChildNodes.Insert(0, cssNode);
|
627
|
|
628
|
return docToEdit.DocumentNode.OuterHtml;
|
629
|
}
|
630
|
|
631
|
|
632
|
private string PartialPreprocessHTMLRemoveTag(string htmlToEdit, string htmlOriginal, AnnotationTag tagToRemove, List<AnnotationTag> tags)
|
633
|
{
|
634
|
var docOriginal = new HtmlDocument();
|
635
|
docOriginal.LoadHtml(htmlOriginal);
|
636
|
var docToEdit = new HtmlDocument();
|
637
|
docToEdit.LoadHtml(htmlToEdit);
|
638
|
|
639
|
var descendantsToEdit = docToEdit.DocumentNode.DescendantsAndSelf().ToList();
|
640
|
RemoveCSS(docToEdit);
|
641
|
|
642
|
int i = 0;
|
643
|
int descendantsCount = descendantsToEdit.Count();
|
644
|
while (i < descendantsCount)
|
645
|
{
|
646
|
for (; i < descendantsCount; i++)
|
647
|
{
|
648
|
var node = descendantsToEdit.ElementAt(i);
|
649
|
if (!node.Attributes.Contains(TAG_EF_ID_ATTRIBUTE_NAME))
|
650
|
{
|
651
|
continue;
|
652
|
}
|
653
|
else
|
654
|
{
|
655
|
if (node.Attributes[TAG_EF_ID_ATTRIBUTE_NAME].Value != tagToRemove.Id.ToString())
|
656
|
{
|
657
|
continue;
|
658
|
}
|
659
|
|
660
|
node.Attributes.Remove(TAG_EF_ID_ATTRIBUTE_NAME);
|
661
|
node.Attributes.Remove(TAG_INSTANCE_ATTRIBUTE_NAME);
|
662
|
node.Attributes.Remove("class");
|
663
|
node.Attributes.Remove("start");
|
664
|
node.Attributes.Remove("end");
|
665
|
|
666
|
/*var parent = node.ParentNode;
|
667
|
var contents = node.ChildNodes;
|
668
|
int index = parent.ChildNodes.IndexOf(node);
|
669
|
parent.ChildNodes.RemoveAt(index);
|
670
|
|
671
|
List<HtmlNode> newChildren = new();
|
672
|
for (int j = 0; j < index; j++)
|
673
|
{
|
674
|
newChildren.Add(parent.ChildNodes[j]);
|
675
|
}
|
676
|
for (int j = 0; j < contents.Count; j++)
|
677
|
{
|
678
|
newChildren.Add(contents[j]);
|
679
|
}
|
680
|
for (int j = index; j < parent.ChildNodes.Count; j++)
|
681
|
{
|
682
|
newChildren.Add(parent.ChildNodes[j]);
|
683
|
}
|
684
|
|
685
|
parent.ChildNodes.Clear();
|
686
|
foreach (var child in newChildren) { parent.ChildNodes.Add(child); }*/
|
687
|
|
688
|
descendantsToEdit = docToEdit.DocumentNode.DescendantsAndSelf().ToList();
|
689
|
descendantsCount = descendantsToEdit.Count();
|
690
|
break;
|
691
|
}
|
692
|
}
|
693
|
}
|
694
|
|
695
|
var cssNode = GenerateCSS(docToEdit, tags);
|
696
|
docToEdit.DocumentNode.ChildNodes.Insert(0, cssNode);
|
697
|
|
698
|
return docToEdit.DocumentNode.OuterHtml;
|
699
|
}
|
700
|
|
701
|
private void RemoveCSS(HtmlDocument doc)
|
702
|
{
|
703
|
doc.DocumentNode.ChildNodes.RemoveAt(0);
|
704
|
}
|
705
|
|
706
|
/*
|
707
|
* Partial HTML Preprocessing ----------------------------------------------------------------------------
|
708
|
*/
|
709
|
|
710
|
|
711
|
// TODO temporary
|
712
|
private bool IsHtml(string text)
|
713
|
{
|
714
|
return text.Contains("<html>");
|
715
|
}
|
716
|
|
717
|
public void AddAnnotationInstance(Guid annotationId, Guid userId, ERole userRole, AnnotationInstanceAddRequest request)
|
718
|
{
|
719
|
var annotation = context.Annotations
|
720
|
.Where(a => a.Id == annotationId)
|
721
|
.Include(a => a.User)
|
722
|
.Include(a => a.Document).ThenInclude(d => d.Content)
|
723
|
.First();
|
724
|
|
725
|
if (userRole < ERole.ADMINISTRATOR)
|
726
|
{
|
727
|
if (annotation.User.Id != userId)
|
728
|
{
|
729
|
throw new UnauthorizedAccessException($"User {userId} does not have assigned annotation {annotationId}");
|
730
|
}
|
731
|
}
|
732
|
|
733
|
AnnotationTag annotationTag = new()
|
734
|
{
|
735
|
Id = Guid.NewGuid(),
|
736
|
Annotation = annotation,
|
737
|
Instance = request.InstanceId == null ? Guid.NewGuid() : request.InstanceId.Value,
|
738
|
Length = request.Length,
|
739
|
Position = request.Position,
|
740
|
Note = ""
|
741
|
};
|
742
|
|
743
|
if (request.Type == ETagType.TAG)
|
744
|
{
|
745
|
annotationTag.Tag = context.Tags.Where(t => t.Id == request.Id).Single();
|
746
|
annotationTag.SubTag = null;
|
747
|
}
|
748
|
else if (request.Type == ETagType.SUBTAG)
|
749
|
{
|
750
|
var subTag = context.SubTags.Where(st => st.Id == request.Id).Include(st => st.Tag).Single();
|
751
|
annotationTag.SubTag = subTag;
|
752
|
annotationTag.Tag = subTag.Tag;
|
753
|
}
|
754
|
else
|
755
|
{
|
756
|
throw new ArgumentException($"Unknown tag type {request.Type}");
|
757
|
}
|
758
|
|
759
|
annotation.LastModifiedTagId = annotationTag.Id;
|
760
|
annotation.ModifiedType = EModified.ADDED;
|
761
|
|
762
|
context.AnnotationTags.Add(annotationTag);
|
763
|
context.SaveChanges();
|
764
|
}
|
765
|
|
766
|
public void DeleteAnnotationInstance(Guid annotationId, Guid tagInstanceId, Guid loggedUserId, ERole userRole)
|
767
|
{
|
768
|
Annotation annotation = null;
|
769
|
try
|
770
|
{
|
771
|
annotation = context.Annotations
|
772
|
.Where(a => a.Id == annotationId)
|
773
|
.Include(a => a.User)
|
774
|
.Include(a => a.Document).ThenInclude(d => d.Content)
|
775
|
.First();
|
776
|
|
777
|
}
|
778
|
catch (Exception ex)
|
779
|
{
|
780
|
throw new InvalidOperationException("Could not find annotation");
|
781
|
}
|
782
|
|
783
|
|
784
|
if (userRole < ERole.ADMINISTRATOR)
|
785
|
{
|
786
|
if (annotation.User.Id != loggedUserId)
|
787
|
{
|
788
|
throw new UnauthorizedAccessException($"User {loggedUserId} does not have assigned annotation {annotationId}");
|
789
|
}
|
790
|
}
|
791
|
|
792
|
if (!context.AnnotationTags.Any(at => at.Id == tagInstanceId))
|
793
|
{
|
794
|
throw new InvalidOperationException("Could not find tag instance");
|
795
|
}
|
796
|
|
797
|
|
798
|
var annotationTag = context.AnnotationTags.First(at => at.Id == tagInstanceId);
|
799
|
annotation.LastModifiedTagId = annotationTag.Id;
|
800
|
annotation.ModifiedType = EModified.REMOVED;
|
801
|
|
802
|
context.AnnotationTags.Remove(annotationTag);
|
803
|
|
804
|
context.SaveChanges();
|
805
|
}
|
806
|
}
|
807
|
}
|