public static async Task <bool> SplitHtmlAsync(FormFileModel file, List <ContentFile> files, uint cid)
{
if (files == null)
{
return(false);
}
var xmlDoc = new HtmlDocument();
Stream[] scriptStreams = null;
try
{
using (var s = file.File.OpenReadStream())
{
xmlDoc.Load(s);
}
var nodes = xmlDoc.DocumentNode.SelectNodes("script");
if (nodes != null)
{
scriptStreams = new Stream[nodes.Count];
string jsPath = Path.Combine(ContentParseSettings.JsSavePath);
string name = null;
string path = null;
HtmlNode node;
for (int i = 0; i < nodes.Count; i++)
{
node = nodes[i];
name = Guid.NewGuid().ToString() + "." + ContentParseSettings.JsUseType;
path = ContentParseSettings.FileFormat(jsPath, name);
using (var stream = File.Create(path))
{
using (var swriter = new StreamWriter(stream))
{
await swriter.WriteAsync(node.InnerText);
}
}
xmlDoc.DocumentNode.RemoveChild(node);
files.Add(new ContentFile(jsPath, name, name, "js", GetUseType("js"))
{
ContentId = cid,
//将js,css文件可下载选项关闭
CanDownload = false
});
}
var htmlPath = Path.Combine(ContentParseSettings.HtmlSavePath);
name = Guid.NewGuid().ToString() + "." + ContentParseSettings.HtmlUseType;
path = ContentParseSettings.FileFormat(htmlPath, name);
using (var htmlStream = File.Create(path))
{
xmlDoc.Save(htmlStream);
}
files.Add(new ContentFile(htmlPath, name, file.OriginalName, file.ExtensionName, GetUseType(file.ExtensionName))
{
ContentId = cid,
CanDownload = false
});
}
return(true);
}
catch (Exception)
{
return(false);
}
}
/// <summary>
/// 提交内容
/// </summary>
/// <param name="id">发布者id</param>
/// <param name="content">内容</param>
/// <param name="title">标题</param>
/// <param name="lable">标签_隔开</param>
/// <param name="files">文件组</param>
/// <returns>如果返回null就是成功,不成功返回错误信息</returns>
private async Task <string> MakeContentAsync(string id, string content, string title, string lable, int gid = -1, IEnumerable <FormFileModel> files = null, bool autoJs = true)
{
ContentGroup group;
if (gid != -1)//TODO:没测试
{
group = DbContext.Groups.Single(g => g.Id == gid);
}
else
{
group = DbContext.Groups.First();//暂时是一个默认组
}
Debug.Assert(group != null);
content = content ?? string.Empty;
//制作html文件
var c = new Content("default", title, 0, lable, null, null)
{
ContentGroupId = group.Id,
Id = (uint)(await this.Count()) + 1,//(uint)DbContext.Contents.Count() + 1
EaUserId = id,
Description = content.Count() > ContentParseSettings.DescriptLength ? content.Substring(0, (int)ContentParseSettings.DescriptLength - 1) : content,
ContentFiles = new List <ContentFile>()
};
if (files == null && content == null && content.Count() < 10)
{
return("没有发送的内容,只是一个文件或者10个字符");
}
var xmlDocBuilder = _xmlDataService.CreateXmlDoc()
.AndXmlDoc(builder =>
{
var nodeContent = builder.XmlDoc.CreateElement(ContentParseSettings.RootNode);
nodeContent.SetAttribute("class", "user-content row");
nodeContent.InnerText = content ?? string.Empty;
builder.RootElement.AppendChild(nodeContent); //加入节点
return(builder);
});
if (files != null)
{
var copyData = files.ToList();
if (copyData.Count() >= ContentParseSettings.MaxUploadFileCount)
{
return($"最多只能上传{ContentParseSettings.MaxUploadFileCount}个文件");
}
//过滤一次文件，将可解析的文件解析，不可解析的文件转存
//文件解析暂时可以为 .jpg .png .jpeg .js .css
//储存makefile
await xmlDocBuilder.AndXmlDocAsync(async (builder) =>
{
var nodeParsed = builder.XmlDoc.CreateElement("user-parsed");
//加入可解析文件
var parsedResual = await FileParseHelper.ParseAsync(builder.XmlDoc, nodeParsed, copyData);
//copyData=copyData.Except(parsedResual).ToList();//将已经完成解析的移除|不移除了，以后会有用
builder.RootElement.AppendChild(nodeParsed);
return(builder);
});
//上面的写好
//保存其它文件（如果有）--TODO ContentFile参数怎么填是个问题
//usertype从字典查，如果差不多就用后缀名代替
string name, path;
//要特别对待html文件,建议html文件
var htmlFiles = copyData.Where(f => f.ExtensionName == ContentParseSettings.HtmlUseType);
/*
* if (htmlFiles.Any(file=>FileParseHelper.HasDangrageCore(file.File)))//FIXME:这里验证不了，出现加载异常
* {
* return "上传的html文件存在object,iframe,script危险标签，不能上传此文件";
* }
*/
if (autoJs)
{
FormFileModel ffm;
for (int i = 0; i < htmlFiles.Count(); i++)
{
ffm = htmlFiles.ElementAt(i);
var res = await FileParseHelper.SplitHtmlAsync(ffm, c.ContentFiles, c.Id);
if (!res)
{
return($"上传:{ffm.File.Name},时出现异常或文件不存在，上传通道-SplitHtmlAsync");
}
}
}
else if (htmlFiles.Count() != 0)
{
if (htmlFiles.Any(file => FileParseHelper.HasDangrageCore(file.File)))
{
return("上传的html文件存在object,iframe,script危险标签，不能上传此文件");
}
}
try
{
string orPath = Path.Combine(ContentParseSettings.OtherSavePath);
foreach (var item in copyData)
{
if (item.ExtensionName != ContentParseSettings.HtmlUseType) //html文件已处理
{
name = Guid.NewGuid().ToString() + "." + item.ExtensionName;
path = ContentParseSettings.FileFormat(orPath, name);
await CopyFileAsync(path, item.File);
c.ContentFiles.Add(new ContentFile(orPath, name, item.OriginalName, item.ExtensionName, FileParseHelper.GetUseType(item.ExtensionName))
{
ContentId = c.Id,
//将js,css文件可下载选项关闭
CanDownload = item.ExtensionName == ContentParseSettings.CssUseType || item.ExtensionName == ContentParseSettings.JsUseType ? false : item.CanDownload
});
}
}
}
catch (Exception ex)
{
return("上传文件时发生异常:" + ex.Message);
}
}
if (!xmlDocBuilder.IsBuild)
{
await xmlDocBuilder.BuildAsync();
}
var xmlFileName = Guid.NewGuid().ToString() + "." + ContentParseSettings.HtmlUseType;
var xmlFilePath = Path.Combine(ContentParseSettings.HtmlSavePath);
using (var fs = File.Create(ContentParseSettings.FileFormat(xmlFilePath, xmlFileName)))
{
xmlDocBuilder.XmlDoc.Save(fs);
}
c.ContentFiles.Add(new ContentFile(xmlFilePath, xmlFileName, xmlFileName, ContentParseSettings.HtmlUseType, ContentParseSettings.HtmlUseType)
{
CanDownload = false, ContentId = c.Id
});
await this.AddAsync(c);
return(null);
}
