private async void menuFlyoutItemMediaFromClipboard_Click(object sender, RoutedEventArgs e)
{
try
{
var image = await Clipboard.GetContent().GetBitmapAsync();
var stream = await image.OpenReadAsync();
var size = stream.Size;
byte[] bytes = new byte[size];
var reader = new DataReader(stream.GetInputStreamAt(0));
await reader.LoadAsync((uint)size);
reader.ReadBytes(bytes);
var media = new PostMedia();
media.Data = bytes;
media.FileName = DateTime.Now.ToString("yyyyMMddhhmmss");
viewModel.SetPostImageCommand.Execute(media);
}
catch (Exception)
{
ToastText text = new ToastText("クリップボードの取得に失敗しました", ToastTemplateType.ToastText01);
text.Show();
}
}
public async Task AddAsync(PostMedia entity)
{
await DbContextManager.BeginTransactionAsync();
var spParameters = new SqlParameter[2];
spParameters[0] = new SqlParameter()
{
ParameterName = "userid", Value = entity.UserId
};
spParameters[1] = new SqlParameter()
{
ParameterName = "post", Value = entity.Media
};
await DbContextManager.StoreProc <StoreProcResult>("[dbo].spInsertPostMedias", spParameters);
try
{
await DbContextManager.CommitAsync();
}
catch (Exception)
{
DbContextManager.RollbackTransaction();
}
}
/* NOT TESTED YET
* public async Task DeletePostAsync(int id)
* {
* var post = await _blogContext.Posts
* .AsNoTracking()
* .FirstOrDefaultAsync(x => x.Id == id);
* }*/
// Helper methods
private string SetPostMediaName(PostMedia media)
{
var ext = Path.GetExtension(media.MedialUrl);
var name = Path.GetFileNameWithoutExtension(media.MedialUrl);
var fileName = name + ext;
return(fileName);
}
private Task DeletePostFileAsync(PostMedia media)
{
var fileName = SetPostMediaName(media);
var filePath = GetPostMediaFilePath(fileName);
if (File.Exists(filePath))
{
File.Delete(filePath);
}
return(Task.CompletedTask);
}
public TwitterUIComponent()
{
suggestList = new ObservableCollection <string>();
mentionSuggestSourceList = new ObservableCollection <string>();
hashSuggestSourceList = new ObservableCollection <string>();
postText = "";
isHashTagLock = false;
isPostWithMedia = false;
PostMedia = new PostMedia();
InReplyToStatus = Tweet.ZeroTweet;
}
public IActionResult Delete(int id)
{
int resHttpStatusCode = 400;
string resMsg = "Bad request";
try
{
using (var ctx = new ConclaveDbContext())
{
var itemToRemove = ctx.Post.SingleOrDefault(x => x.Id == id);
if (itemToRemove != null)
{
if (itemToRemove.Media == "Y")
{
var q = (from item in ctx.PostMedia where item.PostId == id select new { id = item.Id }).ToList();
foreach (var item in q)
{
PostMedia pm = new PostMedia()
{
Id = item.id
};
ctx.PostMedia.Attach(pm);
ctx.PostMedia.Remove(pm);
}
ctx.SaveChanges();
}
ctx.Post.Attach(itemToRemove);
ctx.Post.Remove(itemToRemove);
ctx.SaveChanges();
_cache.StringSet("posts-get-all-isnew", "y");
resHttpStatusCode = 200;
}
}
}
catch (Exception e)
{
CLogger.Log(e);
resHttpStatusCode = 500;
}
HttpContext.Response.StatusCode = resHttpStatusCode;
return(new JsonResult(new
{
success = (resHttpStatusCode == 200 ? "true" : "false"),
msg = resMsg
}));
}
private async Task SetPostImageAsync(StorageFile file)
{
var stream = await file.OpenAsync(FileAccessMode.Read);
var size = stream.Size;
byte[] bytes = new byte[size];
var reader = new DataReader(stream.GetInputStreamAt(0));
await reader.LoadAsync((uint)size);
reader.ReadBytes(bytes);
var media = new PostMedia();
media.Data = bytes;
media.FileName = DateTime.Now.ToString("yyyyMMddhhmmss");
viewModel.SetPostImageCommand.Execute(media);
}
/// <summary>
/// 上传媒体文件
/// </summary>
/// <param name="media"></param>
/// <param name="url"></param>
/// <returns></returns>
public static string GetMediaResult(string url, PostMedia media)
{
Encoding encoding = Encoding.GetEncoding(REQUESTENCODING);
byte[] boundarybytes = Encoding.ASCII.GetBytes("\r\n--" + BOUNDARY + "\r\n");
byte[] endbytes = Encoding.ASCII.GetBytes("\r\n--" + BOUNDARY + "--\r\n");
// content-type前不能有空格
string format = "content-disposition: form-data; name=\"{0}\"; filename=\"{1}\";filelegth=\"{2}\"\r\ncontent-type: application/octet-stream\r\n\r\n";
byte[] headerbytes = encoding.GetBytes(string.Format(format, "media", media.FullName, media.ByteData.Length));
byte[] buffer;
using (var stream = new MemoryStream())
{
stream.Write(boundarybytes, 0, boundarybytes.Length);
stream.Write(headerbytes, 0, headerbytes.Length);
stream.Write(media.ByteData, 0, media.ByteData.Length);
stream.Write(endbytes, 0, endbytes.Length);//1.3 form end
buffer = stream.GetBuffer();
}
return(GetFileResult(url, buffer));
}
/// <summary>
/// Updates post media files <see cref="PostMedia"/>
/// </summary>
/// <param name="post"></param>
/// <param name="oldMedia"></param>
/// <returns></returns>
public async Task <(List <PostMedia> newMedia, List <PostMedia> oldMedia)> UpdatePostMediaAsync(Post post, IReadOnlyCollection <PostMedia> oldMedia)
{
var deleteList = new List <PostMedia>();
var imgRegex = new Regex("<img[^>].+ />", RegexOptions.IgnoreCase | RegexOptions.Compiled);
var newPostMedia = new List <PostMedia>();
var oldMediaFiles = new List <PostMedia>();
if (oldMedia != null)
{
oldMediaFiles.AddRange(oldMedia);
}
post.Media.Clear();
foreach (Match match in imgRegex.Matches(post.Content))
{
var doc = new XmlDocument();
doc.LoadXml("<root>" + match.Value + "</root>");
var assetArray = doc.FirstChild.FirstChild.Attributes;
var imageUrl = assetArray[0].InnerText;
var imageFilename = assetArray[1].InnerText;
if (string.IsNullOrEmpty(imageFilename) || string.IsNullOrEmpty(imageUrl))
{
continue;
}
var media = new PostMedia
{
PostId = post.Id,
FileName = imageFilename,
MedialUrl = imageUrl
};
// set fileName
media.FileName = SetPostMediaName(media);
newPostMedia.Add(media);
}
// has old photos? delete them
var anyOldPhotos = oldMediaFiles.Any();
if (anyOldPhotos)
{
//deleteList.AddRange(from itm in oldMedia let itemFound = post.Media.Any(x => x.FileName == itm.FileName) where itemFound == false select itm);
foreach (var itm in oldMediaFiles)
{
// item in post.Media? true else add for delete(deleteList)
var found = post.Media.Any(x => x.FileName == itm.FileName); // ok
if (!found)
{
deleteList.Add(itm);// not found so add it to removal list for deletion
}
}
}
if (!deleteList.Any())
{
return(newPostMedia, oldMediaFiles);
}
{
// delete each item from serve
foreach (var itm in deleteList)
{
await DeletePostFileAsync(itm);
}
}
return(newPostMedia, oldMediaFiles);
}
public Task DeleteAsync(PostMedia parameters)
{
throw new NotImplementedException();
}
public HashSet <string> DeleteValidation(PostMedia parameters)
{
return(ValidationMessages);
}
public async Task UpdateAsync(PostMedia entity)
{
await Uow.RegisterDirtyAsync(entity);
await Uow.CommitAsync();
}
public Task <object> GetBy(PostMedia parameters)
{
throw new NotImplementedException();
}
public void SetPostImage(PostMedia media)
{
TwitterUIComponent.SetPostMedia(media);
}
public void SetPostMedia(PostMedia media)
{
this.PostMedia = media;
IsAcceptMedia = true;
}
public HashSet <string> UpdateValidation(PostMedia entity)
{
return(ValidationMessages);
}
/// <summary>
/// 设置客服帐号的头像
/// </summary>
/// <param name="access_token"></param>
/// <param name="kf_account"></param>
/// <param name="media"></param>
/// <returns></returns>
public JsonResult UploadHeadImg(string access_token, string kf_account, PostMedia media)
{
string url = string.Format("{0}cgi-bin/customservice/kfaccount/uploadheadimg?access_token={1}&kf_account={2}", baseUrl, access_token, kf_account);
return(JsonHelper.Decode <JsonResult>(HttpHelper.HttpPost.GetMediaResult(url, media)));
}
public async Task <IActionResult> Post()
{
int resHttpStatusCode = 400;
string resMsg = "Bad request";
try
{
var uploadPath = _config["AppConfig:Storage:Uploads"];
if (!string.IsNullOrEmpty(Request.Form["text"].ToString()))
{
Post post = new Post();
post.UserSocialId = AuthToken.GetUserSocialId(HttpContext.Request.Headers["Authorization"].ToString().Split(" ")[1]);
post.Text = Request.Form["text"].ToString();
List <Tuple <string, string> > attachmentList = new List <Tuple <string, string> >();
foreach (var formFile in Request.Form.Files)
{
if (formFile.Length > 0)
{
var filetype = formFile.ContentType.Split("/")[0];
var filename = Guid.NewGuid().ToString() + DateTime.UtcNow.ToString("yyyyMMddHHmmsss") + formFile.FileName.Substring(formFile.FileName.LastIndexOf(".", System.StringComparison.Ordinal));
var filePath = Path.Combine(uploadPath, filename);
using (var stream = System.IO.File.Create(filePath))
{
await formFile.CopyToAsync(stream).ConfigureAwait(false);
attachmentList.Add(Tuple.Create(filetype, "/" + uploadPath + filename));
}
}
}
post.Media = attachmentList.Count() > 0 ? "Y" : "N";
using (var ctx = new ConclaveDbContext())
{
ctx.Post.Add(post);
ctx.SaveChanges();
var postid = post.Id;
foreach (var(filetype, filepath) in attachmentList)
{
PostMedia pm = new PostMedia();
pm.PostId = postid;
pm.Path = filepath;
pm.Filetype = filetype;
ctx.PostMedia.Add(pm);
ctx.SaveChanges();
}
}
_cache.StringSet("posts-get-all-isnew", "y");
resHttpStatusCode = 200;
resMsg = "Post addedd successfully";
}
}
catch (Exception e)
{
resHttpStatusCode = 500;
resMsg = "An internal error has occurred";
CLogger.Log(e);
}
HttpContext.Response.StatusCode = resHttpStatusCode;
return(new JsonResult(new
{
success = (resHttpStatusCode == 200 ? "true" : "false"),
msg = resMsg
}));;
}