/// <summary>
/// 推送缩略图到页面流
/// </summary>
/// <param name="pathImageFrom"></param>
/// <param name="width"></param>
/// <param name="height"></param>
public static void PushThumbnail(string pathImageFrom, int width, int height, string mode)
{
MemoryStream s = MakeThumbnail(pathImageFrom, width, height, mode);
try
{
if (s != null && s.Length > 0)
{
//byte[] bytes = new byte[s.Length];
//s.Write(bytes, 0, bytes.Length);
HttpContext.Current.Response.ClearContent();
HttpContext.Current.Response.ContentType = FileSystemUtils.GetContentType(Path.GetExtension(pathImageFrom).Replace(".", ""));
HttpContext.Current.Response.BinaryWrite(s.ToArray());
}
}catch
{
}
finally
{
if (s != null && s.Length > 0)
{
s.Close();
s.Dispose();
}
HttpContext.Current.Response.End();
}
}
/// <summary>
/// 下载文件
/// </summary>
/// <param name="FileLoc">文件真实路径</param>
/// <param name="FileName">显示文件名</param>
public static void DownloadFile(string FileLoc, string FileName)
{
System.IO.FileInfo objFile = new System.IO.FileInfo(FileLoc);
System.Web.HttpResponse objResponse = System.Web.HttpContext.Current.Response;
string truefilename = objFile.Name;
if (HttpContext.Current.Request.UserAgent.IndexOf("; MSIE ") > 0)
{
truefilename = HttpUtility.UrlEncode(truefilename, System.Text.Encoding.UTF8);
}
if (objFile.Exists)
{
objResponse.ClearContent();
objResponse.ClearHeaders();
objResponse.AppendHeader("content-disposition", "attachment; filename=\"" + HttpUtility.UrlEncode(FileName) + "\"");
objResponse.AppendHeader("Content-Length", objFile.Length.ToString());
objResponse.ContentType = FileSystemUtils.GetContentType(objFile.Extension.Replace(".", ""));
WriteFile(objFile.FullName);
objResponse.Flush();
objResponse.End();
}
}
/// <summary>
/// 导入图片到媒体库
/// </summary>
/// <param name="PictureUrl">图片地址</param>
/// <returns></returns>
public String ImportPicture(String PictureUrl)
{
String Picture = "";
if (!String.IsNullOrEmpty(PictureUrl))
{
//查看该图片是否已经存在过
KeyValueEntity PictureTemp = ImportPictureList.Find(r1 => r1.Key == PictureUrl);
if (PictureTemp != null && !String.IsNullOrEmpty(PictureTemp.Key))
{
Picture = PictureTemp.Value.ToString();
}
else
{
DNNGo_DNNGalleryProGame_Files PhotoItem = new DNNGo_DNNGalleryProGame_Files();
//将图片的URL转换为相应的文件名，文件后缀等内容
PhotoItem.FileName = System.IO.Path.GetFileName(PictureUrl);//文件名 “Default.aspx”
if (!String.IsNullOrEmpty(PhotoItem.FileName) && PhotoItem.FileName.IndexOf(".") > 0)
{
PhotoItem.FileExtension = System.IO.Path.GetExtension(PhotoItem.FileName).Replace(".", "");
PhotoItem.Name = PhotoItem.FileName.Replace(System.IO.Path.GetExtension(PictureUrl), "");
//判断哪些文件需要被下载
if (NeedExtension(PhotoItem.FileExtension))
{
String FullFile = String.Format("{0}DNNGalleryProGame\\uploads\\{1}\\{2}\\{3}\\{4}", DNNGalleryProGame_PortalSettings.HomeDirectoryMapPath, DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, PhotoItem.FileName);
FileInfo file = new FileInfo(FullFile);
int ExistsCount = 1;
//如果有重复的文件，需要改变文件名
while (file.Exists)
{
PhotoItem.FileName = String.Format("{0}_{1}.{2}", PhotoItem.Name, ExistsCount, PhotoItem.FileExtension);
FullFile = String.Format("{0}DNNGalleryProGame\\uploads\\{1}\\{2}\\{3}\\{4}", DNNGalleryProGame_PortalSettings.HomeDirectoryMapPath, DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, PhotoItem.FileName);
file = new FileInfo(FullFile);
ExistsCount++;
}
try
{
if (!file.Directory.Exists)
{
file.Directory.Create();
}
//下载图片
WebClientX web = new WebClientX();
web.DownloadFile(new Uri(PictureUrl), FullFile);
file = new FileInfo(FullFile);
if (file.Exists)
{
PhotoItem.ModuleId = ModuleID;
PhotoItem.PortalId = DNNGalleryProGame_PortalSettings.PortalId;
PhotoItem.FileSize = Convert.ToInt32(file.Length / 1024);
PhotoItem.FileMate = FileSystemUtils.GetContentType(Path.GetExtension(PhotoItem.FileName).Replace(".", ""));
PhotoItem.Status = (Int32)EnumFileStatus.Approved;
PhotoItem.FilePath = String.Format("DNNGalleryProGame/uploads/{0}/{1}/{2}/{3}", DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, PhotoItem.FileName);
try
{
if (("png,gif,jpg,jpeg,bmp").IndexOf(PhotoItem.FileExtension) >= 0)
{
//图片的流
System.Drawing.Image image = System.Drawing.Image.FromFile(file.FullName);
PhotoItem.ImageWidth = image.Width;
PhotoItem.ImageHeight = image.Height;
PhotoItem.Exif = Common.Serialize <EXIFMetaData.Metadata>(new EXIFMetaData().GetEXIFMetaData(image));
}
}
catch
{
}
PhotoItem.LastTime = DateTime.Now;
PhotoItem.LastIP = WebHelper.UserHost;
//PhotoItem.LastUser = DNNGalleryProGame_PortalSettings.UserInfo.UserID;
PhotoItem.ID = PhotoItem.Insert();
//返回图片的路径
Picture = String.Format("MediaID={0}", PhotoItem.ID);
ImportPictureList.Add(new KeyValueEntity(PictureUrl, Picture));
}
}
catch (Exception ex)
{
}
}
else
{
Picture = PictureUrl;
}
}
else
{
Picture = PictureUrl;
}
}
}
return(Picture);
}
// Upload entire file
private void UploadWholeFile(HttpContext context, List <Resource_FilesStatus> statuses)
{
for (int i = 0; i < context.Request.Files.Count; i++)
{
var file = context.Request.Files[i];
if (file != null && !String.IsNullOrEmpty(file.FileName) && file.ContentLength > 0)
{
//验证后缀名是否符合
bool Valid = FileSystemUtils.CheckValidFileName(file.FileName);
if (Valid)
{
DNNGo_DNNGalleryProGame_Files PhotoItem = new DNNGo_DNNGalleryProGame_Files();
PhotoItem.ModuleId = WebHelper.GetIntParam(context.Request, "ModuleId", 0);
PhotoItem.PortalId = WebHelper.GetIntParam(context.Request, "PortalId", 0);
PhotoItem.FileName = file.FileName;
PhotoItem.FileSize = file.ContentLength / 1024;
PhotoItem.FileMate = WebHelper.leftx(FileSystemUtils.GetContentType(Path.GetExtension(PhotoItem.FileName).Replace(".", "")), 30);
PhotoItem.FileExtension = System.IO.Path.GetExtension(PhotoItem.FileName).Replace(".", "");
PhotoItem.Name = System.IO.Path.GetFileName(file.FileName).Replace(Path.GetExtension(PhotoItem.FileName), "");
PhotoItem.Status = (Int32)EnumFileStatus.Approved;
try
{
if (("png,gif,jpg,jpeg,bmp").IndexOf(PhotoItem.FileExtension) >= 0)
{
//图片的流
Image image = Image.FromStream(file.InputStream);
PhotoItem.ImageWidth = image.Width;
PhotoItem.ImageHeight = image.Height;
PhotoItem.Exif = Common.Serialize <EXIFMetaData.Metadata>(new EXIFMetaData().GetEXIFMetaData(image));
}
}
catch
{
}
PhotoItem.LastTime = xUserTime.UtcTime();
PhotoItem.LastIP = WebHelper.UserHost;
PhotoItem.LastUser = UserInfo.UserID;
//将文件存储的路径整理好
String fileName = FileSystemUtils.HandleFileName(System.IO.Path.GetFileName(file.FileName).Replace("." + PhotoItem.FileExtension, "")); //文件名称
String WebPath = String.Format("DNNGalleryProGame/uploads/{0}/{1}/{2}/", PhotoItem.LastTime.Year, PhotoItem.LastTime.Month, PhotoItem.LastTime.Day);
//检测文件存储路径是否有相关的文件
System.IO.FileInfo fInfo = new System.IO.FileInfo(HttpContext.Current.Server.MapPath(String.Format("{0}{1}{2}.{3}", PortalSettings.HomeDirectory, WebPath, fileName, PhotoItem.FileExtension)));
//检测文件夹是否存在
if (!System.IO.Directory.Exists(fInfo.Directory.FullName))
{
System.IO.Directory.CreateDirectory(fInfo.Directory.FullName);
}
else
{
Int32 j = 1;
while (fInfo.Exists)
{
//文件已经存在了
fileName = String.Format("{0}_{1}", FileSystemUtils.HandleFileName(PhotoItem.Name), j);
fInfo = new System.IO.FileInfo(HttpContext.Current.Server.MapPath(String.Format("{0}{1}{2}.{3}", PortalSettings.HomeDirectory, WebPath, fileName, PhotoItem.FileExtension)));
j++;
}
}
PhotoItem.FilePath = String.Format("{0}{1}.{2}", WebPath, fileName, PhotoItem.FileExtension);
PhotoItem.FileName = String.Format("{0}.{1}", fileName, PhotoItem.FileExtension);
try
{
if (!fInfo.Directory.Exists)
{
fInfo.Directory.Create();
// FileSystemUtils.AddFolder(PortalSettings, String.Format("{0}DNNGo_PhotoAlbums/{0}/{1}/"), String.Format("{0}DNNGo_PhotoAlbums/{0}/{1}/"), (int)DotNetNuke.Services.FileSystem.FolderController.StorageLocationTypes.InsecureFileSystem);
}
//构造指定存储路径
file.SaveAs(fInfo.FullName);
//FileSystemUtils.AddFile(PhotoItem.FileName, PhotoItem.PortalId, String.Format("DNNGo_PhotoAlbums\\{0}\\{1}\\", PhotoItem.ModuleId, PhotoItem.AlbumID), PortalSettings.HomeDirectoryMapPath, PhotoItem.FileMeta);
}
catch (Exception ex)
{
}
//给上传的相片设置初始的顺序
QueryParam qp = new QueryParam();
qp.ReturnFields = qp.Orderfld = DNNGo_DNNGalleryProGame_Files._.Sort;
qp.OrderType = 1;
qp.Where.Add(new SearchParam(DNNGo_DNNGalleryProGame_Files._.PortalId, PhotoItem.PortalId, SearchType.Equal));
PhotoItem.Sort = Convert.ToInt32(DNNGo_DNNGalleryProGame_Files.FindScalar(qp)) + 2;
Int32 PhotoId = PhotoItem.Insert();
statuses.Add(new Resource_FilesStatus(PhotoItem, PortalSettings, ModulePath));
}
else
{
throw new HttpRequestValidationException("Following file was imported/uploaded, but is not an authorized filetype: " + file.FileName);
}
}
}
}
