// ajax请求发送给服务器一个图像文件，要求暂存到Session中，供后面的sendtext请求使用
// chat.aspx?action=sendimage
void DoSendImage()
{
string strError = "";
int nRet = 0;
if (this.Request.Files.Count == 0)
{
strError = "请求中没有包含图像文件";
goto ERROR1;
}
try
{
DeleteTempFile();
HttpPostedFile file = this.Request.Files[0];
string strContentType = file.ContentType;
string strImage = StringUtil.GetFirstPartPath(ref strContentType);
if (strImage != "image")
{
strError = "只允许上传图像文件";
goto ERROR1;
}
sessioninfo.PostedFileInfo = new PostedFileInfo();
sessioninfo.PostedFileInfo.FileName = PathUtil.MergePath(sessioninfo.GetTempDir(), "postedfile" + Path.GetExtension(file.FileName));
//file.SaveAs(sessioninfo.PostedFileInfo.FileName + ".tmp");
//bool bWrited = false;
using (Stream target = File.Create(sessioninfo.PostedFileInfo.FileName))
{
// 缩小尺寸
nRet = GraphicsUtil.ShrinkPic(file.InputStream,
file.ContentType,
app.ChatRooms.PicMaxWidth,
app.ChatRooms.PicMaxHeight,
true,
target,
out strError);
if (nRet == -1)
goto ERROR1;
if (nRet == 0) // 没有必要缩放
{
if (file.InputStream.CanSeek == true)
file.InputStream.Seek(0, SeekOrigin.Begin); // 2012/5/20
StreamUtil.DumpStream(file.InputStream, target);
// bWrited = false;
}
}
/*
if (bWrited == false)
File.Copy(sessioninfo.PostedFileInfo.FileName + ".tmp",
sessioninfo.PostedFileInfo.FileName,
true);
* */
}
catch (Exception ex)
{
strError = "ShrinkPic error -" + ex.Message;
goto ERROR1;
}
this.Response.Write("{\"result\":\"OK\"}");
this.Response.End();
return;
ERROR1:
// app.WriteErrorLog("DoSendImage() error :" + strError);
this.Response.Charset = "utf-8";
// this.Response.StatusCode = 500;
// this.Response.StatusDescription = strError;
SendImageResultInfo result_info = new SendImageResultInfo();
result_info.error = strError;
this.Response.Write(GetResultString(result_info));
this.Response.End();
}
// ajax请求发送给服务器一个图像文件，要求暂存到Session中，供后面的sendtext请求使用
// chat.aspx?action=sendimage
void DoSendImage()
{
string strError = "";
int nRet = 0;
if (this.Request.Files.Count == 0)
{
strError = "请求中没有包含图像文件";
goto ERROR1;
}
try
{
DeleteTempFile();
HttpPostedFile file = this.Request.Files[0];
string strContentType = file.ContentType;
string strImage = StringUtil.GetFirstPartPath(ref strContentType);
if (strImage != "image")
{
strError = "只允许上传图像文件";
goto ERROR1;
}
sessioninfo.PostedFileInfo = new PostedFileInfo();
sessioninfo.PostedFileInfo.FileName = PathUtil.MergePath(sessioninfo.GetTempDir(), "postedfile" + Path.GetExtension(file.FileName));
//file.SaveAs(sessioninfo.PostedFileInfo.FileName + ".tmp");
//bool bWrited = false;
using (Stream target = File.Create(sessioninfo.PostedFileInfo.FileName))
{
// 缩小尺寸
nRet = GraphicsUtil.ShrinkPic(file.InputStream,
file.ContentType,
app.ChatRooms.PicMaxWidth,
app.ChatRooms.PicMaxHeight,
true,
target,
out strError);
if (nRet == -1)
{
goto ERROR1;
}
if (nRet == 0) // 没有必要缩放
{
if (file.InputStream.CanSeek == true)
{
file.InputStream.Seek(0, SeekOrigin.Begin); // 2012/5/20
}
StreamUtil.DumpStream(file.InputStream, target);
// bWrited = false;
}
}
/*
* if (bWrited == false)
* File.Copy(sessioninfo.PostedFileInfo.FileName + ".tmp",
* sessioninfo.PostedFileInfo.FileName,
* true);
* */
}
catch (Exception ex)
{
strError = "ShrinkPic error -" + ex.Message;
goto ERROR1;
}
this.Response.Write("{\"result\":\"OK\"}");
this.Response.End();
return;
ERROR1:
// app.WriteErrorLog("DoSendImage() error :" + strError);
this.Response.Charset = "utf-8";
// this.Response.StatusCode = 500;
// this.Response.StatusDescription = strError;
SendImageResultInfo result_info = new SendImageResultInfo();
result_info.error = strError;
this.Response.Write(GetResultString(result_info));
this.Response.End();
}
