void submit_button_Click(object sender, EventArgs e)
{
string strError = "";
TextBox textbox = (TextBox)this.FindControl("displayName");
OpacApplication app = (OpacApplication)this.Page.Application["app"];
if (app == null)
{
strError = "app == null";
goto ERROR1;
}
SessionInfo sessioninfo = (SessionInfo)this.Page.Session["sessioninfo"];
if (sessioninfo == null)
{
strError = "sessioninfo == null";
goto ERROR1;
}
int nRedoCount = 0;
bool bUploadSaved = false;
REDO:
XmlDocument readerdom = null;
// 获得当前session中已经登录的读者记录DOM
// return:
// -2 当前登录的用户不是reader类型
// -1 出错
// 0 尚未登录
// 1 成功
int nRet = sessioninfo.GetLoginReaderDom(
out readerdom,
out strError);
if (nRet == -1 || nRet == -2)
{
goto ERROR1;
}
if (nRet == 0)
{
goto ERROR1;
}
bool bXmlRecordChanged = false;
FileUpload upload = (FileUpload)this.FindControl("upload");
string strOldDisplayName = DomUtil.GetElementText(readerdom.DocumentElement,
"displayName");
if (textbox.Text == strOldDisplayName &&
upload.HasFile == false)
{
strError = "显示名没有发生修改并且也没有新上传头像，放弃保存";
goto ERROR1;
}
if (strOldDisplayName != textbox.Text)
{
DomUtil.SetElementText(readerdom.DocumentElement,
"displayName",
textbox.Text);
bXmlRecordChanged = true;
}
// 如果有上传头像
if (upload.HasFile == true &&
bUploadSaved == false)
{
XmlNamespaceManager nsmgr = new XmlNamespaceManager(new NameTable());
nsmgr.AddNamespace("dprms", DpNs.dprms);
// 全部<dprms:file>元素
XmlNodeList nodes = sessioninfo.ReaderInfo.ReaderDom
.DocumentElement.SelectNodes("//dprms:file[@usage='photo']", nsmgr);
string strResTimeStamp = "";
string strFileID = "0";
if (nodes.Count > 0)
{
strFileID = DomUtil.GetAttr(nodes[0], "id");
if (String.IsNullOrEmpty(strFileID) == true)
{
strFileID = FindNewFileID(sessioninfo.ReaderInfo.ReaderDom);
}
strResTimeStamp = DomUtil.GetAttr(nodes[0], "__timestamp");
}
else
{
strFileID = FindNewFileID(sessioninfo.ReaderInfo.ReaderDom);
XmlNode node = sessioninfo.ReaderInfo.ReaderDom.CreateElement(
"dprms:file", DpNs.dprms);
sessioninfo.ReaderInfo.ReaderDom.DocumentElement.AppendChild(node);
DomUtil.SetAttr(node, "id", strFileID);
DomUtil.SetAttr(node, "usage", "photo");
bXmlRecordChanged = true;
}
if (bXmlRecordChanged == true)
{
sessioninfo.SetLoginReaderDomChanged();
// 先要保存一次XML记录，这样才有<dprms:file>元素，为上载资源作好准备
// return:
// -2 时间戳冲突
// -1 error
// 0 没有必要保存(changed标志为false)
// 1 成功保存
nRet = sessioninfo.SaveLoginReaderDom(
out strError);
if (nRet == -1)
{
goto ERROR1;
}
if (nRet == -2)
{
if (nRedoCount < 10)
{
nRedoCount++;
sessioninfo.ReaderInfo.ReaderDom = null; // 强迫重新读入
goto REDO;
}
goto ERROR1;
}
bXmlRecordChanged = false;
}
// Stream stream = upload.FileContent;
// 保存资源
// 采用了代理帐户
// return:
// -1 error
// 0 发现上载的文件其实为空，不必保存了
// 1 已经保存
nRet = app.SaveUploadFile(
this.Page,
sessioninfo.ReaderInfo.ReaderDomPath,
strFileID,
strResTimeStamp,
upload.PostedFile,
64,
64,
out strError);
if (nRet == -1)
{
goto ERROR1;
}
bUploadSaved = true;
sessioninfo.ReaderInfo.ReaderDom = null; // 迫使重新装载
// 因为上载后时间戳改变，需要重新获取
nRet = sessioninfo.GetLoginReaderDom(
out readerdom,
out strError);
if (nRet == -1 || nRet == -2)
{
goto ERROR1;
}
}
// 为显示名的修改而保存
if (bXmlRecordChanged == true)
{
sessioninfo.SetLoginReaderDomChanged();
// return:
// -2 时间戳冲突
// -1 error
// 0 没有必要保存(changed标志为false)
// 1 成功保存
nRet = sessioninfo.SaveLoginReaderDom(
out strError);
if (nRet == -1)
{
goto ERROR1;
}
if (nRet == -2)
{
if (nRedoCount < 10)
{
nRedoCount++;
sessioninfo.ReaderInfo.ReaderDom = null; // 强迫重新读入
goto REDO;
}
goto ERROR1;
}
bXmlRecordChanged = false;
}
// 刷新显示
return;
ERROR1:
this.SetDebugInfo("errorinfo", strError);
}