private void ProcessGetImage(HttpContext context)
{
string contentID = context.Request.QueryString["imagePropID"];
string filePath = context.Request.QueryString["filePath"];
if (string.IsNullOrEmpty(contentID) == false)
{
if (string.IsNullOrEmpty(filePath) == false)
{
filePath = MachineKeyEncryptor.Decrypt(filePath);
string filename = Path.GetFileName(filePath);
if (File.Exists(filePath))
{
context.Response.ContentType = "image/jpeg";
context.Response.AddFileDependency(filePath);
context.Response.Cache.SetLastModifiedFromFileDependencies();
context.Response.Cache.VaryByParams["contentID"] = true;
context.Response.Cache.VaryByParams["filePath"] = true;
context.Response.Cache.SetETagFromFileDependencies();
var cacheCtrl = context.Request.Headers["Cache-Control"];
var ifModifiedSince = context.Request.Headers["If-Modified-Since"];
string lastChangeSince;
try
{
lastChangeSince = context.Response.Headers["Last-Modified"];
}
catch (Exception)
{
lastChangeSince = null;
}
if (string.IsNullOrEmpty(ifModifiedSince) == false && ifModifiedSince == lastChangeSince)
{
context.Response.StatusCode = 302;
}
else
{
context.Response.WriteFile(filePath, false);
}
}
else
{
ProcessGetImageById(contentID, context);
}
}
else
{
ProcessGetImageById(contentID, context);
}
}
else
{
BadRequest(context.Response, "没有指定imagePropID参数");
}
}
private void ProcessFileUpload(HttpContext context)
{
HttpPostedFile file = context.Request.Files[0];
if (file.ContentType == "image/jpeg")
{
string maxSizeString = context.Request.QueryString["maxSize"];
int maxSize = string.IsNullOrEmpty(maxSizeString) ? -1 : int.Parse(maxSizeString);
string imgInfoStr = context.Request.Form["imageInfo"];
if (string.IsNullOrEmpty(imgInfoStr) == false)
{
var imgProp = JSONSerializerExecute.Deserialize <ImageProperty>(imgInfoStr);
if (string.IsNullOrWhiteSpace(imgProp.ID))
{
imgProp.ID = Guid.NewGuid().ToString();
}
imgProp.NewName = UuidHelper.NewUuidString() + Path.GetExtension(imgProp.OriginalName);
imgProp.Changed = true;
imgProp.UpdateTime = SNTPClient.AdjustedTime;
if (maxSize < 0 || file.ContentLength <= maxSize)
{
string filePath;
// ImageUploadHelper.UploadFile(file, imgProp.OriginalName, imgProp.NewName, out filePath);
string path = GetUploadRootPath("ImageUploadRootPath");
string tempPath = Path.Combine(path + @"Temp\", imgProp.NewName);
AutoCreateUploadPath(path);
// var beforeArgs = new UploadEventArgs(originalName);
// uploadControl.OnBeforeUploadFile(beforeArgs);
file.SaveAs(Path.Combine(path + @"Temp\", imgProp.NewName));
//var afterArgs = new UploadEventArgs(newName);
//uploadControl.OnAfterUploadFile(afterArgs);
filePath = tempPath;
imgProp.FilePath = MachineKeyEncryptor.Encrypt(filePath);
string imgPropJsonStr = JSONSerializerExecute.Serialize(imgProp);
string uploadImageShowenUrl = "some.imgupload?action=getimage&imagePropID=" + imgProp.ID + "&filePath=" + MachineKeyEncryptor.Encrypt(filePath);
context.Response.ContentType = "text/html";
var output = context.Response.Output;
System.Web.UI.HtmlTextWriter writer = new System.Web.UI.HtmlTextWriter(output);
BeginForm(writer);
AddInput(writer, "imgInfo", imgPropJsonStr);
AddInput(writer, "imgPath", uploadImageShowenUrl);
EndForm(writer);
output.Close();
//context.Response.Write(GetResponseTextScript(imgPropJsonStr));
//context.Response.Write(GetUploadImageUrlByFile(uploadImageShowenUrl));
//string paramsData = string.Format("['{0}','{1}']", "document.getElementById('responseInfo').value", uploadImageShowenUrl);
//context.Response.Write(GetClientControlInvokeStript(GetPostedControlID(), "uploadSuccess", "document.getElementById('responseInfo').value", "document.getElementById('uploadImageUrlByFile').value"));
}
else
{
BadRequest(context.Response, "上传文件太大");
}
}
}
}
