public class Handler2 : IHttpHandler, IRequiresSessionState {
public void ProcessRequest(HttpContext context)
{
//取得处事类型
string action = DTRequest.GetQueryString("action");
switch (action)
{
case "EditorFile": //编辑器文件
EditorFile(context);
break;
case "ManagerFile": //管理文件
ManagerFile(context);
break;
default: //普通上传
UpLoadFile(context);
break;
}
}
#region 上传文件处理===================================
private void UpLoadFile(HttpContext context)
{
string _delfile = DTRequest.GetString("DelFilePath");
HttpPostedFile _upfile = context.Request.Files["Filedata"];
bool _iswater = false; //默认不打水印
bool _isthumbnail = false; //默认不生成缩略图
if (DTRequest.GetQueryString("IsWater") == "1")
_iswater = true;
if (DTRequest.GetQueryString("IsThumbnail") == "1")
_isthumbnail = true;
if (_upfile == null)
{
context.Response.Write("{\"status\": 0, \"msg\": \"请选择要上传文件！\"}");
return;
}
UpLoad upFiles = new UpLoad();
string msg = upFiles.fileSaveAs(_upfile, _isthumbnail, _iswater);
//删除已存在的旧文件
if (!string.IsNullOrEmpty(_delfile))
{
Utils.DeleteUpFile(_delfile);
}
//返回成功信息
context.Response.Write(msg);
context.Response.End();
}
#endregion
#region 编辑器上传处理===================================
private void EditorFile(HttpContext context)
{
bool _iswater = false; //默认不打水印
if (context.Request.QueryString["IsWater"] == "1")
_iswater = true;
HttpPostedFile imgFile = context.Request.Files["imgFile"];
if (imgFile == null)
{
showError(context, "请选择要上传文件！");
return;
}
UpLoad upFiles = new UpLoad();
string remsg = upFiles.fileSaveAs(imgFile, false, _iswater);
JsonData jd = JsonMapper.ToObject(remsg);
string status = jd["status"].ToString();
string msg = jd["msg"].ToString();
if (status == "0")
{
showError(context, msg);
return;
}
string filePath = jd["path"].ToString(); //取得上传后的路径
Hashtable hash = new Hashtable();
hash["error"] = 0;
hash["url"] = filePath;
context.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
context.Response.Write(JsonMapper.ToJson(hash));
context.Response.End();
}
//显示错误
private void showError(HttpContext context, string message)
{
Hashtable hash = new Hashtable();
hash["error"] = 1;
hash["message"] = message;
context.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
context.Response.Write(JsonMapper.ToJson(hash));
context.Response.End();
}
#endregion
#region 浏览文件处理=====================================
private void ManagerFile(HttpContext context)
{
Webland.Models.siteConfig siteConfig = new Webland.Models.siteConfig();
//String aspxUrl = context.Request.Path.Substring(0, context.Request.Path.LastIndexOf("/") + 1);
//根目录路径，相对路径
String rootPath = siteConfig.Webpath + siteConfig.Filepath + "/"; //站点目录+上传目录
//根目录URL，可以指定绝对路径，比如 http://www.yoursite.com/attached/
String rootUrl = siteConfig.Webpath + siteConfig.Filepath + "/";
//图片扩展名
String fileTypes = "gif,jpg,jpeg,png,bmp";
String currentPath = "";
String currentUrl = "";
String currentDirPath = "";
String moveupDirPath = "";
String dirPath = Utils.GetMapPath(rootPath);
String dirName = context.Request.QueryString["dir"];
//根据path参数，设置各路径和URL
String path = context.Request.QueryString["path"];
path = String.IsNullOrEmpty(path) ? "" : path;
if (path == "")
{
currentPath = dirPath;
currentUrl = rootUrl;
currentDirPath = "";
moveupDirPath = "";
}
else
{
currentPath = dirPath + path;
currentUrl = rootUrl + path;
currentDirPath = path;
moveupDirPath = Regex.Replace(currentDirPath, @"(.*?)[^\/]+\/$", "$1");
}
//排序形式，name or size or type
String order = context.Request.QueryString["order"];
order = String.IsNullOrEmpty(order) ? "" : order.ToLower();
//不允许使用..移动到上一级目录
if (Regex.IsMatch(path, @"\.\."))
{
context.Response.Write("Access is not allowed.");
context.Response.End();
}
//最后一个字符不是/
if (path != "" && !path.EndsWith("/"))
{
context.Response.Write("Parameter is not valid.");
context.Response.End();
}
//目录不存在或不是目录
if (!Directory.Exists(currentPath))
{
context.Response.Write("Directory does not exist.");
context.Response.End();
}
//遍历目录取得文件信息
string[] dirList = Directory.GetDirectories(currentPath);
string[] fileList = Directory.GetFiles(currentPath);
switch (order)
{
case "size":
Array.Sort(dirList, new NameSorter());
Array.Sort(fileList, new SizeSorter());
break;
case "type":
Array.Sort(dirList, new NameSorter());
Array.Sort(fileList, new TypeSorter());
break;
case "name":
default:
Array.Sort(dirList, new NameSorter());
Array.Sort(fileList, new NameSorter());
break;
}
Hashtable result = new Hashtable();
result["moveup_dir_path"] = moveupDirPath;
result["current_dir_path"] = currentDirPath;
result["current_url"] = currentUrl;
result["total_count"] = dirList.Length + fileList.Length;
List<Hashtable> dirFileList = new List<Hashtable>();
result["file_list"] = dirFileList;
for (int i = 0; i < dirList.Length; i++)
{
DirectoryInfo dir = new DirectoryInfo(dirList[i]);
Hashtable hash = new Hashtable();
hash["is_dir"] = true;
hash["has_file"] = (dir.GetFileSystemInfos().Length > 0);
hash["filesize"] = 0;
hash["is_photo"] = false;
hash["filetype"] = "";
hash["filename"] = dir.Name;
hash["datetime"] = dir.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss");
dirFileList.Add(hash);
}
for (int i = 0; i < fileList.Length; i++)
{
FileInfo file = new FileInfo(fileList[i]);
Hashtable hash = new Hashtable();
hash["is_dir"] = false;
hash["has_file"] = false;
hash["filesize"] = file.Length;
hash["is_photo"] = (Array.IndexOf(fileTypes.Split(','), file.Extension.Substring(1).ToLower()) >= 0);
hash["filetype"] = file.Extension.Substring(1);
hash["filename"] = file.Name;
hash["datetime"] = file.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss");
dirFileList.Add(hash);
}
context.Response.AddHeader("Content-Type", "application/json; charset=UTF-8");
context.Response.Write(JsonMapper.ToJson(result));
context.Response.End();
}
#region Helper
public class NameSorter : IComparer
{
public int Compare(object x, object y)
{
if (x == null && y == null)
{
return 0;
}
if (x == null)
{
return -1;
}
if (y == null)
{
return 1;
}
FileInfo xInfo = new FileInfo(x.ToString());
FileInfo yInfo = new FileInfo(y.ToString());
return xInfo.FullName.CompareTo(yInfo.FullName);
}
}
public class SizeSorter : IComparer
{
public int Compare(object x, object y)
{
if (x == null && y == null)
{
return 0;
}
if (x == null)
{
return -1;
}
if (y == null)
{
return 1;
}
FileInfo xInfo = new FileInfo(x.ToString());
FileInfo yInfo = new FileInfo(y.ToString());
return xInfo.Length.CompareTo(yInfo.Length);
}
}
public class TypeSorter : IComparer
{
public int Compare(object x, object y)
{
if (x == null && y == null)
{
return 0;
}
if (x == null)
{
return -1;
}
if (y == null)
{
return 1;
}
FileInfo xInfo = new FileInfo(x.ToString());
FileInfo yInfo = new FileInfo(y.ToString());
return xInfo.Extension.CompareTo(yInfo.Extension);
}
}
#endregion
#endregion
public bool IsReusable {
get {
return false;
}
}
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