public async Task <ActionResult> Edit([FromServices] HtmlSanitizerService sanitizerService, int id, BlogEdit blog, IFormFile[] files, bool setmain = false)
{
ViewBag.CategoryList = _catUtil.GetCategoryDropdown(blog.CategoryID);
ViewBag.id = id;
if (NolinkCategories == null || !NolinkCategories.Contains(blog.CategoryID))
{
if (blog.BlogLinks == null)
{
ModelState.AddModelError("", "链接地址不能为空");
return(View(blog));
}
else
{
blog.BlogLinks = blog.BlogLinks.Where(b => !string.IsNullOrWhiteSpace(b.url)).ToArray();
if (!BlogHelper.checkBlogLinks(blog.BlogLinks))
{
ModelState.AddModelError("", "链接地址不能为空，且不得包含javascript");
return(View(blog));
}
}
}
if (blog.Content == null || string.IsNullOrWhiteSpace(BlogHelper.removeAllTags(blog.Content)))
{
ModelState.AddModelError("", "内容不能为空或纯图片");
return(View(blog));
}
if (!_blogUtil.CheckAdmin())
{
blog.Content = sanitizerService.Sanitize(blog.Content);
}
if (ModelState.IsValid)
{
Blog originalblog = _db.Blogs.Find(id);
bool hasupload = false;
List <string> dellist = null;
List <string> newlist = null;
string thumb = null;
string newthumb = null;
string[] originalImglist = originalblog.ImagePath?.Split(';') ?? new string[] { };
string[] currentImglist = blog.ImagePath?.Split(';') ?? new string[] { };
int imgcount = currentImglist.Length;
bool[] uploadpos = null;
if (originalblog.option != null)
{
originalblog.option.MergeWith(_blogUtil, blog.Option);
}
else if (!blog.Option.OverrideOption(_blogUtil).IsDefault())
{
originalblog.option = blog.Option;
}
if (originalblog.IsLocalImg)
{
dellist = originalImglist.ToList();
thumb = dellist.First();
}
if (currentImglist.Length != 0) //item has local image & might or might not changed
{
// foreach name in current imglist, if orignal imglist does not contain the name,it is not valid
if (!currentImglist.All(n => originalImglist.Contains(n)))
{
ModelState.AddModelError("", "内部参数错误，请刷新重试");
return(View(blog));
}
// foreach name in orignial imglist, if current imglist does not contain the name,delete it
dellist = originalImglist.Except(currentImglist).ToList();
originalblog.ImagePath = blog.ImagePath;
}
if (files != null)
{
uploadpos = new bool[files.Length];
imgcount += files.Where(f => f != null).Count();
for (int i = 0; i < files.Length; i++)
{
var data = files[i];
if (data != null)
{
if (data.Length > 1048576 * 4 || !data.ContentType.Contains("image"))
{
ModelState.AddModelError("", "单个文件不得超过4MB，且必须是图片");
return(View(blog));
}
hasupload = true;
uploadpos[i] = true;
}
else
{
uploadpos[i] = false;
}
}
}
if (hasupload) // has upload file
{
try
{
newlist = await _uploadUtil.SaveImagesAsync(files, false);
}
catch (Exception e)
{
ModelState.AddModelError("", "保存图片时发生异常：(" + e.Message + ")。如多次出错，请汇报给管理员。");
return(View(blog));
}
if (newlist.Count < 1)
{
ModelState.AddModelError("", "图片服务器上传出错，请稍后再试。如多次出错，请汇报给管理员。");
return(View(blog));
}
int i = 0;
if (originalblog.IsLocalImg && setmain && files[0] != null && currentImglist.Length > 0)
{
List <string> updatedImgList = new List <string>(currentImglist);
updatedImgList.Insert(0, newlist[0]);
updatedImgList.AddRange(newlist.Skip(1));
originalblog.ImagePath = string.Join(";", updatedImgList);
blog.Content = BlogHelper.InsertImgPlaceholder(blog.Content);
i++;
}
else if (!originalblog.IsLocalImg)
{
originalblog.ImagePath = string.Join(";", newlist);
}
else
{
originalblog.ImagePath = string.Join(";", currentImglist.Concat(newlist));
}
blog.Content = BlogHelper.ReplaceNewImgPlaceholder(blog.Content, i, currentImglist.Length, uploadpos);
originalblog.IsLocalImg = true;
}
if (!originalblog.IsLocalImg || imgcount == 0) //no img no upload
{
string imgname = BlogHelper.getFirstImg(blog.Content);
if (imgname == null || imgname.Length < 5)
{
ModelState.AddModelError("", "请添加预览图！（上传或外链图片）");
blog.ImagePath = originalblog.ImagePath;
return(View(blog));
}
originalblog.ImagePath = imgname;
originalblog.IsLocalImg = false;
}
else
{
newthumb = originalblog.ImagePath.Split(';').ToList().First();
}
var mention = new MentionHandler(_udb);
blog.Content = mention.ParseMentions(blog.Content);
mention.SendMentionMsg(_msgUtil, originalblog.Author, originalblog.BlogTitle, Url.Action("Details", new { id = originalblog.BlogID }));
if (blog.Option != null && (originalblog.option != null || !blog.Option.IsDefault()))
{
originalblog.option = blog.Option;
}
// else image uploaded before and did not changed
string[] tags = TagUtil.SplitTags(blog.BlogTags);
List <Tag> updatedTags = null;
try
{
// Replace 【】（） with []()
originalblog.BlogTitle = blog.BlogTitle.ToSingleByteCharacterString();
originalblog.Content = BlogHelper.RemoveComments(blog.Content);
originalblog.CategoryID = blog.CategoryID;
originalblog.Links = Newtonsoft.Json.JsonConvert.SerializeObject(blog.BlogLinks);
if (blog.Option.NoApprove)
{
originalblog.isApproved = false;
}
else if (originalblog.isApproved == false)
{
originalblog.isApproved = null;
}
else if (originalblog.isApproved == null)
{
// Remove pending votes since the blog has changed.
var audits = _db.BlogAudits.Where(b => b.BlogID == originalblog.BlogID).ToList();
var lastDecision = audits.Where(ba => ba.AuditAction == BlogAudit.Action.Approve || ba.AuditAction == BlogAudit.Action.Deny).OrderByDescending(ba => ba.BlogVersion).FirstOrDefault();
int lastVersion = lastDecision == null ? 0 : lastDecision.BlogVersion;
_db.BlogAudits.RemoveRange(audits.Where(ba => ba.BlogVersion > lastVersion && (ba.AuditAction == BlogAudit.Action.VoteApprove || ba.AuditAction == BlogAudit.Action.VoteDeny)));
}
updatedTags = _tagUtil.SetTagsForBlog(originalblog.BlogID, tags, originalblog.Author);
originalblog.isHarmony = BlogHelper.BlogIsHarmony(_db, originalblog, HarmonySettings);
_db.SaveChanges();
}
catch
{
if (originalblog.IsLocalImg && newlist != null)
{
await _uploadUtil.DeleteFilesAsync(newlist);
}
throw;
}
if (dellist != null && dellist.Count > 0)
{
await _uploadUtil.DeleteFilesAsync(dellist);
}
if (thumb != null && thumb != newthumb && blog.IsLocalImg)
{
await _uploadUtil.DeleteFileAsync(thumb.Replace("/upload/", "/thumbs/"));
}
if (originalblog.IsLocalImg && thumb != newthumb)
{
await _uploadUtil.SaveThumbAsync(originalblog.ImagePath);
}
if (originalblog.Author != User.Identity.Name)
{
_adminUtil.log(User.Identity.Name, "editblog", originalblog.BlogID.ToString());
}
TriggerEditBlog(originalblog, updatedTags);
return(RedirectToAction("Details", new { id }));
}
return(View(blog));
}