public async Task <ResultEntityBase> InsertVideoAsync(Video video)
{
var result = new ResultEntityBase()
{
};
var count = await _videoResponstory.InsertVideoAsync(video);
if (count > 0)
{
return(result);
}
result.Status = StatusCode.Error;
result.Message = "视频信息插入失败";
return(result);
}
public async Task<ResultEntityBase> UpdateTag(Tag tag)
{
var result = new ResultEntityBase { };
if (await _tagResponstory.UpdateTagsAsync(tag) != 0)
{
result.Status = StatusCode.Success;
result.Message = "标签更新成功";
return await Task.FromResult(result);
}
else
{
result.Status = StatusCode.Error;
result.Message = "标签更新失败";
return await Task.FromResult(result);
}
}
public async Task<ResultEntityBase> AddTag(Tag tag)
{
var result = new ResultEntityBase { };
if (await _tagResponstory.GetTag(tag.Name)!=null)
{
result.Status = StatusCode.Error;
result.Message = "当前标签已存在";
return await Task.FromResult(result);
}
if (await _tagResponstory.InsertTagsAsync(tag) != 0)
{
result.Status = StatusCode.Success;
result.Message = "标签添加成功";
return await Task.FromResult(result);
}
else
{
result.Status = StatusCode.Error;
result.Message = "标签添加失败";
return await Task.FromResult(result);
}
}
public async Task <ResultEntityBase> UploadVideo(CancellationToken cancellationToken)
{
var result = new ResultEntityBase();
var video = new Video();
if (!MultipartRequestHelper.IsMultipartContentType(Request.ContentType))
{
result.Status = CommonEntity.StatusCode.Error;
result.Message = "请求数据类型出错";
return(await Task.FromResult(result));
}
var formAccumulator = new KeyValueAccumulator();
string videoUid = Guid.NewGuid().ToString("N");
video.Uid = videoUid;
video.State = 1;
string targetFilePath = Path.Combine(Directory.GetCurrentDirectory(), $"{_iconfiguration.GetValue<string>("VirtualPath")}/{videoUid}");
//检查相应目录
if (!Directory.Exists(targetFilePath))
{
Directory.CreateDirectory(targetFilePath);
}
var boundary = MultipartRequestHelper.GetBoundary(
MediaTypeHeaderValue.Parse(Request.ContentType),
_defaultFormOptions.MultipartBoundaryLengthLimit);
var reader = new MultipartReader(boundary, HttpContext.Request.Body);
try
{
var section = await reader.ReadNextSectionAsync();
while (section != null)
{
ContentDispositionHeaderValue contentDisposition;
var hasContentDispositionHeader = ContentDispositionHeaderValue.TryParse(section.ContentDisposition, out contentDisposition);
if (hasContentDispositionHeader)
{
if (MultipartRequestHelper.HasFileContentDisposition(contentDisposition))
{
var fileName = section.AsFileSection().FileName;
video.FileName = fileName;
video.Name = fileName;
video.UpdateUser = "******";
video.CreateUser = "******";
targetFilePath = Path.Combine(targetFilePath, fileName);
if (System.IO.File.Exists(targetFilePath))
{
result.Status = CommonEntity.StatusCode.Error;
result.Message = "文件已存在";
break;
}
using (var targetStream = System.IO.File.Create(targetFilePath))
{
await section.Body.CopyToAsync(targetStream);
_ilogger.LogInformation($"复制文件到该路径下 '{targetFilePath}'");
}
}
else if (MultipartRequestHelper.HasFormDataContentDisposition(contentDisposition))
{
// Content-Disposition: form-data; name="key"
//
// value
// Do not limit the key name length here because the
// multipart headers length limit is already in effect.
var key = HeaderUtilities.RemoveQuotes(contentDisposition.Name);
var encoding = GetEncoding(section);
using (var streamReader = new StreamReader(
section.Body,
encoding,
detectEncodingFromByteOrderMarks: true,
bufferSize: 1024,
leaveOpen: true))
{
// The value length limit is enforced by MultipartBodyLengthLimit
var value = await streamReader.ReadToEndAsync();
if (String.Equals(value, "undefined", StringComparison.OrdinalIgnoreCase))
{
value = String.Empty;
}
formAccumulator.Append(key.ToString(), value);
if (formAccumulator.ValueCount > _defaultFormOptions.ValueCountLimit)
{
throw new InvalidDataException($"Form key count limit {_defaultFormOptions.ValueCountLimit} exceeded.");
}
}
}
}
// Drains any remaining section body that has not been consumed and
// reads the headers for the next section.
section = await reader.ReadNextSectionAsync();
}
video.Name = formAccumulator.GetResults()["name"];
video.Title = formAccumulator.GetResults()["title"];
video.SecertKey = videoUid;
video.State = Convert.ToInt32(formAccumulator.GetResults()["state"]);
return(await Task.FromResult(await _ivideoService.InsertVideoAsync(video)));
}
catch (OperationCanceledException)
{
if (System.IO.File.Exists(targetFilePath))
{
System.IO.File.Delete(targetFilePath);
}
result.Status = CommonEntity.StatusCode.Error;
result.Message = "用户取消上传操作";
return(await Task.FromResult(result));
}
catch (Exception ex)
{
if (System.IO.File.Exists(targetFilePath))
{
System.IO.File.Delete(targetFilePath);
}
result.Status = CommonEntity.StatusCode.Error;
result.Message = "取消上传操作";
_ilogger.LogError(new EventId(), ex, ex.Message);
return(await Task.FromResult(result));
}
}