/// <summary>
/// 删除上传文件
/// </summary>
/// <param name="fileUri">相对地址或网址</param>
public void DeleteFile(string fileUri)
{
//分发不同的上传方式处理
switch (siteConfig.fileserver)
{
case "aliyun": //阿里云OSS对象存储
//检查配置是否完善
if (string.IsNullOrEmpty(siteConfig.accessid) || string.IsNullOrEmpty(siteConfig.accesssecret) || string.IsNullOrEmpty(siteConfig.endpoint))
{
return;
}
//初始化配置
DTcms.Cloud.AliyunOss aliyun = new DTcms.Cloud.AliyunOss(siteConfig.endpoint, siteConfig.accessid, siteConfig.accesssecret);
string result = string.Empty; //返回信息
aliyun.DeleteObject(siteConfig.spacename, fileUri, siteConfig.spaceurl, out result);
break;
case "qcloud": //腾讯云COS对象存储
break;
default: //本地服务器
//文件不应是上传文件，防止跨目录删除
if (fileUri.IndexOf("..") == -1 && fileUri.ToLower().StartsWith(siteConfig.webpath.ToLower() + siteConfig.filepath.ToLower()))
{
FileHelper.DeleteUpFile(fileUri);
}
break;
}
}
/// <summary>
/// 通过文件流上传文件方法
/// </summary>
/// <param name="upType">文件上传类型</param>
/// <param name="byteData">文件字节数组</param>
/// <param name="fileName">文件名</param>
/// <param name="isThumbnail">是否生成缩略图</param>
/// <param name="isWater">是否打水印</param>
/// <param name="isCompress">是否启用图片压缩</param>
/// <param name="isCover">是否为封面</param>
/// <param name="thumbnailWidth">缩略图宽度</param>
/// <param name="thumbnailHeight">缩略图高度</param>
/// <param name="thumbnailMode">缩略图生成方式</param>
/// <returns>上传成功返回JSON字符串</returns>
public string StrFileSaveAs(string upType, byte[] byteData, string fileName, bool isThumbnail, bool isWater, bool isCompress, bool isCover, int thumbnailWidth, int thumbnailHeight, string thumbnailMode)
{
try
{
int maxSize = 0;
string[] allowExtensions = null;
//上传类型
switch (upType.ToLower())
{
case "file":
maxSize = siteConfig.attachsize;
allowExtensions = siteConfig.attachextension.Split(',');
break;
case "video":
//视频上传
maxSize = siteConfig.videosize;
allowExtensions = siteConfig.videoextension.Split(',');
break;
default:
maxSize = siteConfig.imgsize;
allowExtensions = siteConfig.imgextension.Split(',');
break;
}
string fileExt = Path.GetExtension(fileName).Trim('.').ToLower(); //文件扩展名，不含“.”
string newFileName = Utils.GetRamCode() + "." + fileExt; //随机生成新的文件名
string newThumbnailFileName = "thumb_" + newFileName; //随机生成缩略图文件名
string upLoadPath = GetUpLoadPath(); //本地上传目录相对路径
string fullUpLoadPath = Utils.GetMapPath(upLoadPath); //本地上传目录的物理路径
string newFilePath = upLoadPath + newFileName; //本地上传后的路径
string newThumbnailPath = upLoadPath + newThumbnailFileName; //本地上传后的缩略图路径
byte[] thumbData = null; //缩略图文件流
//检查文件字节数组是否为NULL
if (byteData == null)
{
return("{\"status\": 0, \"msg\": \"请选择要上传的文件！\"}");
}
//检查文件扩展名是否合法
if (!CheckFileExt(fileExt, allowExtensions))
{
return("{\"status\": 0, \"msg\": \"不允许上传" + fileExt + "类型的文件！\"}");
}
//检查文件大小是否合法
if (!CheckFileSize(byteData.Length, maxSize))
{
return("{\"status\": 0, \"msg\": \"文件超过限制的大小！\"}");
}
//判断是否为图片存储
if (upType.ToLower() == "img")
{
//是否是生成封面
if (isCover)
{
//封面直接裁剪
if (thumbnailWidth > 0 && thumbnailHeight > 0)
{
byteData = Thumbnail.MakeThumbnailImage(byteData, fileExt, thumbnailWidth, thumbnailHeight, thumbnailMode);
}
}
else
{
//如果是图片，检查图片是否超出最大尺寸，是则裁剪
if (isCompress && this.siteConfig.imgmaxheight > 0 || this.siteConfig.imgmaxwidth > 0)
{
byteData = Thumbnail.MakeThumbnailImage(byteData, fileExt, this.siteConfig.imgmaxwidth, this.siteConfig.imgmaxheight);
}
}
//如果是图片，检查是否需要生成缩略图，是则生成
if (isThumbnail && thumbnailWidth > 0 && thumbnailHeight > 0)
{
thumbData = Thumbnail.MakeThumbnailImage(byteData, fileExt, thumbnailWidth, thumbnailHeight, thumbnailMode);
}
//else
//{
// newThumbnailPath = newFilePath; //不生成缩略图则返回原图
//}
//如果是图片，检查是否需要打水印
if (isWater && siteConfig.watermarktype > 0 && IsWaterMark(fileExt))
{
switch (this.siteConfig.watermarktype)
{
case 1:
if (!string.IsNullOrEmpty(this.siteConfig.watermarktext))
{
byteData = WaterMark.AddImageSignText(byteData, fileExt, this.siteConfig.watermarktext, this.siteConfig.watermarkposition,
this.siteConfig.watermarkimgquality, this.siteConfig.watermarkfont, this.siteConfig.watermarkfontsize);
}
break;
case 2:
if (!string.IsNullOrEmpty(this.siteConfig.watermarkpic))
{
byteData = WaterMark.AddImageSignPic(byteData, fileExt, this.siteConfig.watermarkpic, this.siteConfig.watermarkposition,
this.siteConfig.watermarkimgquality, this.siteConfig.watermarktransparency);
}
break;
}
}
//图片处理插件选择
if (siteConfig.imgplugin > 0)
{
//主图
MagickHelper mhr = new MagickHelper();
mhr.byteData = byteData;
mhr.quality = 0;
if (isCompress)
{
mhr.quality = siteConfig.watermarkimgquality;
}
//是否需要转换扩展名
if (!string.IsNullOrEmpty(siteConfig.imgconvert))
{
fileExt = siteConfig.imgconvert;
mhr.fileExt = siteConfig.imgconvert;
//替换扩展名
newFileName = newFileName.Remove(newFileName.LastIndexOf(".") + 1) + fileExt;
newThumbnailFileName = newThumbnailFileName.Remove(newThumbnailFileName.LastIndexOf(".") + 1) + fileExt;
newFilePath = newFilePath.Remove(newFilePath.LastIndexOf(".") + 1) + fileExt;
newThumbnailPath = newThumbnailPath.Remove(newThumbnailPath.LastIndexOf(".") + 1) + fileExt;
}
byteData = mhr.Compress();
//缩略图
if (thumbData != null)
{
MagickHelper mhr2 = new MagickHelper();
mhr2.byteData = thumbData;
mhr2.quality = mhr.quality < 90 ? 90 : mhr.quality;
mhr2.fileExt = mhr.fileExt;
}
}
}
else if (upType.ToLower() == "video")
{
}
//分发不同的上传方式处理
switch (siteConfig.fileserver)
{
case "aliyun": //阿里云OSS对象存储
#region 阿里云OSS对象存储
//检查配置是否完善
if (string.IsNullOrEmpty(siteConfig.accessid) || string.IsNullOrEmpty(siteConfig.accesssecret) || string.IsNullOrEmpty(siteConfig.endpoint))
{
return("{\"status\": 0, \"msg\": \"文件上传配置未完善，无法上传\"}");
}
//初始化阿里云配置
DTcms.Cloud.AliyunOss aliyun = new DTcms.Cloud.AliyunOss(siteConfig.endpoint, siteConfig.accessid, siteConfig.accesssecret);
string result = string.Empty; //返回信息
//保存主文件
if (!aliyun.PutObject(byteData, siteConfig.spacename, newFilePath, siteConfig.spaceurl, out result))
{
return("{\"status\": 0, \"msg\": \"" + result + "\"}");
}
newFilePath = result; //将地址赋值给新文件地址
//保存缩略图文件
if (thumbData != null)
{
aliyun.PutObject(thumbData, siteConfig.spacename, newThumbnailPath, siteConfig.spaceurl, out result);
newThumbnailPath = result; //将缩略图地址赋值
}
else
{
newThumbnailPath = newFilePath; //没有缩略图将原图返回
}
#endregion
break;
case "qcloud": //腾讯云COS对象存储
#region 腾讯云COS对象存储
#endregion
break;
case "domain": //本地跨域存储
#region 本地跨域存储
fullUpLoadPath = siteConfig.domainpath + upLoadPath.Replace("/", "\\");
var bindDomain = siteConfig.domainbind;
if (bindDomain.EndsWith("/"))
{
bindDomain = bindDomain.Remove(bindDomain.Length - 1);
}
newFilePath = bindDomain + newFilePath;
//检查本地上传的物理路径是否存在，不存在则创建
if (!Directory.Exists(fullUpLoadPath))
{
Directory.CreateDirectory(fullUpLoadPath);
}
//保存主文件
FileHelper.SaveFile(byteData, fullUpLoadPath + newFileName);
//保存缩略图文件
if (thumbData != null)
{
newThumbnailPath = bindDomain + newThumbnailPath;
FileHelper.SaveFile(thumbData, fullUpLoadPath + newThumbnailFileName);
}
else
{
newThumbnailPath = newFilePath;
}
#endregion
break;
default: //本地服务器
#region 本地服务器
//检查本地上传的物理路径是否存在，不存在则创建
if (!Directory.Exists(fullUpLoadPath))
{
Directory.CreateDirectory(fullUpLoadPath);
}
//保存主文件
FileHelper.SaveFile(byteData, fullUpLoadPath + newFileName);
//保存缩略图文件
if (thumbData != null)
{
FileHelper.SaveFile(thumbData, fullUpLoadPath + newThumbnailFileName);
}
else
{
newThumbnailPath = upLoadPath;
}
#endregion
break;
}
//处理完毕，返回JOSN格式的文件信息
return("{\"status\": 1, \"msg\": \"上传文件成功！\", \"name\": \""
+ fileName + "\", \"path\": \"" + newFilePath + "\", \"thumb\": \""
+ newThumbnailPath + "\", \"size\": " + byteData.Length + ", \"ext\": \"" + fileExt + "\"}");
}
catch (Exception ex)
{
LogHelper.Info(ex.Message);
return("{\"status\": 0, \"msg\": \"上传过程中发生意外错误！\"}");
}
}
