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ArticleService.cs
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ArticleService.cs
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using CnGalWebSite.DataModel.Helper;
using CnGalWebSite.DataModel.Model;
using CnGalWebSite.DataModel.ViewModel.Articles;
using CnGalWebSite.DataModel.ViewModel.HistoryData;
using CnGalWebSite.DataModel.ViewModel.PostTools;
using CnGalWebSite.Helper.Extensions;
using CnGalWebSite.Helper.Helper;
using CnGalWebSite.PublicToolbox.DataRepositories;
using CnGalWebSite.PublicToolbox.Helpers;
using HtmlAgilityPack;
using Markdig;
using Markdig.Extensions.Figures;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http.Json;
using System.Text;
using System.Threading.Tasks;
namespace CnGalWebSite.PublicToolbox.PostTools
{
public class ArticleService:IArticleService
{
private readonly HttpClient _httpClient;
private readonly IImageService _imageService;
private readonly IRepository<RepostArticleModel> _outlinkArticleRepository;
private readonly ILogger<ArticleService> _logger;
public event Action<KeyValuePair<OutputLevel, string>> ProgressUpdate;
public ArticleService(HttpClient httpClient, IRepository<RepostArticleModel> outlinkArticleRepository, IImageService imageService, ILogger<ArticleService> logger)
{
_httpClient = httpClient;
_outlinkArticleRepository = outlinkArticleRepository;
_imageService = imageService;
_logger = logger;
}
public async Task ProcArticle(RepostArticleModel model, IEnumerable<string> articles, IEnumerable<string> games)
{
OnProgressUpdate(model, OutputLevel.Infor, $"开始处理链接 {model.Url}");
var tempArticle = _outlinkArticleRepository.GetAll().FirstOrDefault(s => s.Url == model.Url);
if (tempArticle != null)
{
if (tempArticle.PostTime != null)
{
OnProgressUpdate(model, OutputLevel.Dager, $"-> 链接 {model.Url} 已于 {tempArticle.PostTime} 提交审核[Id:{tempArticle.Id}]");
return;
}
}
else
{
try
{
OnProgressUpdate(model, OutputLevel.Infor, $"获取文章内容");
await GetArticleContext( model);
}
catch (Exception ex)
{
_logger.LogError(ex, "获取链接内容失败 {Link}", model.Url);
OnProgressUpdate(model, OutputLevel.Dager, "获取文章失败,请检查链接格式或联系管理员");
return;
}
await _outlinkArticleRepository.InsertAsync(model);
}
if (articles.Any(s => s == model.Title))
{
OnProgressUpdate(model, OutputLevel.Dager, $"{model.Url} 与现有文章《{model.Title}》重名,请手动上传");
return;
}
model.CompleteTaskCount++;
OnProgressUpdate(model, OutputLevel.Infor, $"裁剪主图");
await CutImage(model);
model.CompleteTaskCount++;
OnProgressUpdate(model, OutputLevel.Infor, $"生成文章");
var article = GenerateArticle(model, games);
model.CompleteTaskCount++;
OnProgressUpdate(model, OutputLevel.Infor, $"提交审核");
model.Id = await SubmitArticle(article);
model.PostTime = DateTime.Now.ToCstTime();
await _outlinkArticleRepository.SaveAsync();
model.CompleteTaskCount++;
OnProgressUpdate(model, OutputLevel.Infor, $"成功处理 {model.Url}");
}
public async Task CutImage(RepostArticleModel model)
{
if (string.IsNullOrWhiteSpace(model.Image) == false && model.IsCutImage == false)
{
model.Image = await _imageService.GetImage(model.Image, 460, 215);
model.IsCutImage = model.Image.Contains("image.cngal");
if (model.IsCutImage)
{
OnProgressUpdate(model, OutputLevel.Infor, "成功裁剪主图");
}
else
{
OnProgressUpdate(model, OutputLevel.Warning, "裁剪主图失败,请在提交完成后手动修正");
}
}
}
protected void OnProgressUpdate(RepostArticleModel model, OutputLevel level, string infor)
{
if (level == OutputLevel.Dager)
{
model.Error = infor;
}
ProgressUpdate?.Invoke(new KeyValuePair<OutputLevel, string>(level, infor));
}
private async Task ProcZhiHuArticleFromHtmlAsync(RepostArticleModel model, string html)
{
var document = new HtmlDocument();
document.LoadHtml(html);
var node = document.GetElementbyId("root");
var htmlStr = "";
var name = "";
string image = null;
string author = null;
var mainNode = node.FirstChild.ChildNodes.FirstOrDefault(s => s.HasClass("App-main")).FirstChild;
//正文
try
{
htmlStr = mainNode.ChildNodes.MaxBy(s => s.InnerText.Length).ChildNodes.MaxBy(s => s.InnerText.Length).LastChild.LastChild.InnerHtml;
}
catch(Exception ex)
{
throw new Exception("无法获取知乎文章内容,请联系管理员",ex);
}
//检查是否获取到正文
if (string.IsNullOrWhiteSpace(htmlStr))
{
throw new Exception("无法获取知乎文章内容,请联系管理员");
}
//主图
//try
//{
// var tempNode = mainNode.ChildNodes.FirstOrDefault(s => s.Name == "img");
// if (tempNode == null)
// {
// tempNode = mainNode.ChildNodes.FirstOrDefault(s => s.OuterHtml.Contains("background-image"));
// if (tempNode != null)
// {
// image = ToolHelper.MidStrEx(tempNode.OuterHtml, "url(", "?source");
// }
// }
// else
// {
// image = ToolHelper.MidStrEx(tempNode.OuterHtml, "src=\"", "\"");
// }
//}
//catch
//{
//}
//标题
try
{
name = mainNode.ChildNodes.MaxBy(s => s.InnerText.Length).ChildNodes[0].FirstChild.InnerText;
}
catch
{
}
//作者
try
{
author = mainNode.ChildNodes.FirstOrDefault(s=>s.Name=="article").ChildNodes.FirstOrDefault(s => s.HasClass("Post-Author")).ChildNodes.FirstOrDefault(s => s.HasClass("AuthorInfo")).ChildNodes.FirstOrDefault(s => s.HasClass("AuthorInfo")).ChildNodes.FirstOrDefault(s => s.HasClass("AuthorInfo-content")).ChildNodes.FirstOrDefault(s => s.HasClass("AuthorInfo-head")).InnerText;
}
catch
{
}
//时间
try
{
var times = mainNode.ChildNodes.MaxBy(s => s.InnerText.Length).ChildNodes.Where(s => s.InnerText.Contains("发布于") || s.InnerText.Contains("编辑于")).Select(s => s.InnerText.Replace("发布于 ", "").Replace("编辑于 ", ""));
foreach (var item in times)
{
try
{
model.PublishTime = DateTime.ParseExact(item, "yyyy-MM-dd HH:mm", null);
break;
}
catch
{
}
}
}
catch
{
}
var converter = new ReverseMarkdown.Converter();
if(string.IsNullOrWhiteSpace(htmlStr))
{
throw new Exception("无法获取知乎文章内容,请联系管理员");
}
model.MainPage = await ProgressImage(model, converter.Convert(htmlStr), RepostArticleType.ZhiHu);
model.Title = name;
model.OriginalAuthor = ToolHelper.MidStrEx(model.MainPage, "原作者:", "\r").Replace("*", "").Split("丨").FirstOrDefault()?.Trim();
if (string.IsNullOrWhiteSpace(model.OriginalAuthor) && author != null)
{
model.OriginalAuthor = author;
}
model.Image = image ?? model.MainPage.GetImageLinks().FirstOrDefault();
}
private async Task ProcXiaoHeiHeArticleFromHtmlAsync(RepostArticleModel model, string html)
{
var document = new HtmlDocument();
document.LoadHtml(html);
var node = document.GetElementbyId("app");
var htmlStr = "";
var name = "";
string image = null;
string author = null;
//主图标题
try
{
name = node.ChildNodes.FirstOrDefault(s => s.HasClass("article-header")).ChildNodes.FirstOrDefault(s => s.HasClass("title")).InnerText;
}
catch
{
}
//作者
try
{
model.OriginalAuthor = node.ChildNodes.FirstOrDefault(s => s.HasClass("user-bar")).ChildNodes.FirstOrDefault(s => s.HasClass("row-1")).ChildNodes.FirstOrDefault(s => s.HasClass("info")).ChildNodes.FirstOrDefault(s => s.HasClass("top")).InnerText;
}
catch
{
}
//正文
try
{
htmlStr = node.ChildNodes.FirstOrDefault(s => s.HasClass("article-content")).FirstChild.InnerHtml;
}
catch
{
}
var converter = new ReverseMarkdown.Converter();
model.MainPage = converter.Convert(htmlStr.Replace("data-original=", "src="));
model.MainPage = await ProgressImage(model, model.MainPage, RepostArticleType.XiaoHeiHe);
model.Title = name;
model.OriginalAuthor = ToolHelper.MidStrEx(model.MainPage, "本文作者 @", "**");
if (string.IsNullOrWhiteSpace(model.OriginalAuthor) && author != null)
{
model.OriginalAuthor = author;
}
model.Image = image ?? model.MainPage.GetImageLinks().FirstOrDefault();
}
public async Task<string> ProgressImage(RepostArticleModel model,string text, RepostArticleType type)
{
if (type == RepostArticleType.ZhiHu)
{
var figures = text.Split("</figure>");
model.TotalTaskCount += figures.Count();
foreach (var item in figures)
{
var textTemp = item.Split("<figure");
if (textTemp.Length > 1)
{
//获取图片链接
var image = ToolHelper.MidStrEx(textTemp[1], "data-original=\"", "\">");
if(string.IsNullOrWhiteSpace(image))
{
image = ToolHelper.MidStrEx(textTemp[1], "<img src=\"", "\"");
}
if(string.IsNullOrWhiteSpace(image))
{
continue;
}
//获取注释
var figure = textTemp[1].MidStrEx("<figcaption>", "</figcaption>");
OnProgressUpdate(model, OutputLevel.Infor, $"获取图片 {image}");
var newImage = await _imageService.GetImage(image);
//替换
text = text.Replace("<figure" + ToolHelper.MidStrEx(text, "<figure", "</figure>") + "</figure>", $"\n![{figure??""}]({newImage})\n");
}
model.CompleteTaskCount++;
}
}
else if (type == RepostArticleType.XiaoHeiHe)
{
var images = text.GetImageLinks();
model.TotalTaskCount += images.Count;
foreach (var temp in images)
{
var image = temp.Replace("/thumb", "");
OnProgressUpdate(model, OutputLevel.Infor, $"获取图片 {image}");
var infor = await _imageService.GetImage(image);
//替换图片
text = text.Replace(temp, infor);
model.CompleteTaskCount++;
}
}
return text;
}
private async Task GetArticleContext(RepostArticleModel model)
{
//替换链接
var url = model.Url.Replace("https://api.xiaoheihe.cn/maxnews/app/share/detail/", "https://api.xiaoheihe.cn/v3/bbs/app/api/web/share?link_id=");
if (url.Contains("zhuanlan.zhihu.com"))
{
var html = HtmlHelper.GetHtml(url);
await ProcZhiHuArticleFromHtmlAsync(model, html);
}
else if (url.Contains("api.xiaoheihe.cn"))
{
var html = HtmlHelper.GetHtml(url);
await ProcXiaoHeiHeArticleFromHtmlAsync(model, html);
}
else
{
throw new Exception("链接格式不正确或不支持该平台");
}
}
private async Task<long> SubmitArticle(CreateArticleViewModel model)
{
try
{
var result = await _httpClient.PostAsJsonAsync<CreateArticleViewModel>(ToolHelper.WebApiPath + "api/articles/createarticle", model);
var jsonContent = result.Content.ReadAsStringAsync().Result;
var obj = System.Text.Json.JsonSerializer.Deserialize<Result>(jsonContent, ToolHelper.options);
//判断结果
if (obj.Successful == false)
{
throw new Exception(obj.Error);
}
Console.WriteLine($"[7] 已提交{model.Main.Type.GetDisplayName()}《{model.Main.Name}》审核[Id:{obj.Error}]");
return long.Parse(obj.Error);
}
catch (Exception ex)
{
OutputHelper.PressError(ex, "提交文章审核失败");
return 0;
}
}
private CreateArticleViewModel GenerateArticle(RepostArticleModel model,IEnumerable<string> games)
{
var article = new CreateArticleViewModel
{
Name = model.Title,
Main = new EditArticleMainViewModel
{
Name = model.Title,
DisplayName = model.Title,
MainPicture = model.Image,
PubishTime = model.PublishTime.Year < 2000 ? DateTime.Now.ToCstTime() : model.PublishTime,
RealNewsTime = model.PublishTime,
OriginalLink = model.Url,
BriefIntroduction = GetArticleBriefIntroduction(model.MainPage, 50),
OriginalAuthor = string.IsNullOrWhiteSpace(model.OriginalAuthor) ? model.UserName : model.OriginalAuthor,
Type = model.Type,
},
MainPage = new EditArticleMainPageViewModel
{
Context = model.MainPage,
}
};
var entries = games.ToList();
entries.RemoveAll(s => s == "幻觉" || s == "画师" || s == "她");
//查找关联词条
foreach (var item in entries)
{
if (model.MainPage.Contains(item))
{
article.Relevances.Games.Add(new DataModel.ViewModel.RelevancesModel
{
DisplayName = item,
});
}
}
foreach (var item in entries)
{
if (model.Title.Contains(item))
{
article.Relevances.Games.Add(new DataModel.ViewModel.RelevancesModel
{
DisplayName = item
});
}
}
return article;
}
private string GetArticleBriefIntroduction(string mainPage, int maxLength)
{
var title = "";
var pipeline = new MarkdownPipelineBuilder().UseAdvancedExtensions().UseSoftlineBreakAsHardlineBreak().Build();
title = Markdown.ToPlainText(mainPage, pipeline);
if (title.Split(": ").Length > 1)
{
title = title.Split(": ")[1];
}
//去除 图片
do
{
var midStr = ToolHelper.MidStrEx(title, "[", "]");
title = title.Replace($"[{midStr}]", "");
} while (string.IsNullOrWhiteSpace(ToolHelper.MidStrEx(title, "[", "]")) == false);
//去除 话题
do
{
var midStr = ToolHelper.MidStrEx(title, "#", "#");
title = title.Replace($"#{midStr}#", "");
} while (string.IsNullOrWhiteSpace(ToolHelper.MidStrEx(title, "#", "#")) == false);
return title.Abbreviate(maxLength).Replace("\n", "").Replace("\r", "").Replace("image", "");
}
}
}