/// <summary>
/// 上传文件。
/// </summary>
/// <param name="file">表单文件。</param>
/// <param name="init">实例化媒体文件属性。</param>
/// <param name="unique">每一个文件和媒体存储文件一一对应。</param>
/// <returns>返回上传后的结果！</returns>
public virtual async Task <MediaResult> UploadAsync(IFormFile file, Action <MediaFile> init, bool unique = true)
{
if (file == null || file.Length == 0)
{
return(new MediaResult(null, Resources.FormFileInvalid));
}
var tempFile = await _directory.SaveToTempAsync(file);
return(await SaveAsync(tempFile, file.FileName, init, unique));
}
public async Task <IActionResult> OnPostUploadAsync(IFormFile file, string bookid)
{
var epub = _epubManager.Create(bookid);
if (Path.GetExtension(file.FileName).ToLower() == ".txt")
{
var chapters = await _epubManager.LoadFileAsync(file);
await epub.AddChaptersAsync(chapters);
return(Success("成功上传了文件！"));
}
var info = await _storageDirectory.SaveToTempAsync(file);
if (file.FileName.IsPictureFile())
{
await epub.AddCoverAsync(file.FileName, info.FullName);
}
else
{
epub.AddFile(file.FileName, info.FullName);
}
return(Success("成功上传了文件！"));
}
public async Task <IActionResult> OnPostUpload(IFormFile file, string bookid)
{
var epub = _epubManager.Create(bookid);
var info = await _storageDirectory.SaveToTempAsync(file);
if (file.FileName.IsPictureFile())
{
var url = epub.AddCover(info.FullName, Path.GetExtension(file.FileName));
info.Delete();
return(Success(new { url }));
}
epub.AddFile(file.FileName, info.FullName);
return(Success());
}
/// <summary>
/// 上传用户头像。
/// </summary>
/// <param name="userId">用户Id。</param>
/// <param name="file">当前用户实例。</param>
/// <returns>返回上传任务。</returns>
public async Task <string> UploadAsync(int userId, IFormFile file)
{
var tempFile = await _storageDirectory.SaveToTempAsync(file);
tempFile = tempFile.Resize(Size, Size);
//上传头像新文件，把老文件删除
var path = _storageDirectory.GetPhysicalPath($"avatars/{userId}/");
if (Directory.Exists(path))
{
Directory.Delete(path, true);
}
path = Path.Combine(path, "default.png").MakeDirectory();
tempFile.MoveTo(path);
return($"/s-avatars/{userId}.png");
}
/// <summary>
/// 通过文件导入敏感词汇。
/// </summary>
/// <param name="file">上传文件实例。</param>
/// <returns>返回导入词汇数量。</returns>
public virtual async Task <int> ImportAsync(IFormFile file)
{
var tempFile = await _storageDirectory.SaveToTempAsync(file);
var text = await FileHelper.ReadTextAsync(tempFile.FullName);
if (string.IsNullOrWhiteSpace(text))
{
return(-1);
}
var words = text.Trim().Split(new[] { "\r\n", "\n", "," }, StringSplitOptions.RemoveEmptyEntries)
.Select(x => x.Trim())
.Where(x => x.Length < 32)
.Distinct(StringComparer.OrdinalIgnoreCase)
.ToList();
if (await ImportAsync(words))
{
return(words.Count);
}
return(0);
}
/// <summary>
/// 分析电子书文件，返回章节和文章列表。
/// </summary>
/// <param name="uri">电子书URL地址。</param>
/// <param name="encoding">字符编码。</param>
/// <param name="title">标题格式："^.*(第[零一二三四五六七八九十百千0-9]+章)(.*?)\r?\n"。</param>
/// <param name="minLength">内容最少字符数。</param>
/// <returns>返回章节和文章列表。</returns>
public async Task <IDictionary <string, string> > LoadFileAsync(Uri uri, Encoding encoding = null, Regex title = null, int minLength = 1000)
{
var file = await _storageDirectory.SaveToTempAsync(uri);
return(await LoadFileAsync(file.FullName, encoding, title, minLength));
}