// writes request XML according to the parameter passed
public void WriteRequest(string type, string searchValue, string mask)
{
// create a document object
MSXML2.IXMLDOMDocument document = CreateDocument();
// create request element
MSXML2.IXMLDOMElement requestElem = document.createElement("request");
// set attributes of request element
requestElem.setAttribute("type", type);
// if one of these kinds of request is to be made
// specify the filename and pertaining info too.
if (type.CompareTo("SHOWFILES") != 0)
{
string ReqType = "";
if (type.CompareTo("CHAT") == 0)
{
ReqType = "message";
}
else
{
ReqType = "scope";
}
MSXML2.IXMLDOMElement file_infoElem = document.createElement(ReqType.ToString());
if (type.CompareTo("CHAT") == 0)
{
file_infoElem.setAttribute("sendername", searchValue.Substring(0, searchValue.IndexOf("(")));
file_infoElem.setAttribute("senderIP", searchValue.Substring(searchValue.IndexOf("(") + 1).Substring(0, searchValue.Substring(searchValue.IndexOf("(") + 1).Length - 1));
file_infoElem.setAttribute("chatmsg", mask);
}
else
{
file_infoElem.setAttribute("type", searchValue);
file_infoElem.setAttribute("mask", mask);
}
requestElem.appendChild(file_infoElem);
}
// close and save the documdent
SaveAndCloseDocument(requestElem, document);
}
// writes error XML responses
public void WriteErrorResponse(string error)
{
// create a document object
MSXML2.IXMLDOMDocument document = CreateDocument();
// create response and error info elements
MSXML2.IXMLDOMElement responseElem = document.createElement("response");
MSXML2.IXMLDOMElement errorInfoElem = document.createElement("errorinfo");
// set attribute of response element
responseElem.setAttribute("type", "ERROR");
// set attribute of errorinfo element
errorInfoElem.setAttribute("errorcode", "1");
errorInfoElem.setAttribute("severity", "Error");
errorInfoElem.setAttribute("description", error);
// add errorinfo element to response object as a child
responseElem.appendChild(errorInfoElem);
// save the document
SaveAndCloseDocument(responseElem, document);
}
/// <summary>
/// 給属性赋值
/// </summary>
/// <param name="nd">IXMLDOMElement节点</param>
/// <param name="name">字段名</param>
/// <param name="value">字段值</param>
public static void setAttribute(MSXML2.IXMLDOMElement nd, string name, object value)
{
string strValue = "";
if (value != null && value != DBNull.Value)
{
strValue = value.ToString();
}
nd.setAttribute(name, strValue);
}
private void WriteShowfileResponse(string reqType)
{
// create a document object
MSXML2.IXMLDOMDocument document = CreateDocument();
// create response and error info elements
MSXML2.IXMLDOMElement responseElem = document.createElement("response");
// set attribute of response element
responseElem.setAttribute("type", reqType);
// open share.ini for reading
StreamReader readfile = new StreamReader(SharedResourceInfoPath);
string readData;
// read entire file
while ((readData = readfile.ReadLine()) != null)
{
try
{
// for each entry in share .ini create a fileinfo element
// and fill it with required information
MSXML2.IXMLDOMElement file_infoElem = document.createElement("fileinfo");
int index = readData.IndexOf("=", 0);
file_infoElem.setAttribute("filename", readData.Substring(0, index));
file_infoElem.setAttribute("mask", readData.Substring(index + 1, 1));
int secindex = -1;
if (-1 != (secindex = readData.IndexOf("=", index + 1)))
{
file_infoElem.setAttribute("filesize", readData.Substring(secindex + 1));
}
// add this element to response element as child
responseElem.appendChild(file_infoElem);
}
catch (Exception e) { MessageBox.Show("Problem faced while responding : " + e.Message); }
}
// close and save the documdent
SaveAndCloseDocument(responseElem, document);
}
// responds for search requests
private void WriteSearchResponse(MSXML2.IXMLDOMNode node)
{
try
{
MSXML2.IXMLDOMNode scope = node.firstChild;
MSXML2.IXMLDOMNamedNodeMap nodemap = scope.attributes;
MSXML2.IXMLDOMNode childNode = nodemap.nextNode();
MSXML2.IXMLDOMNode childNode2 = nodemap.nextNode();
string scopeVal = childNode.nodeValue.ToString();
string maskVal = childNode2.nodeValue.ToString();
// make sure that search request has criteria specified in it
if (0 != scope.nodeName.CompareTo("scope"))
{
return;
}
// validated that directory's existing
if (!Directory.Exists(scopeVal.Substring(0, scopeVal.LastIndexOf("\\") + 1)))
{
throw new Exception("Directory does not exists any more");
}
MSXML2.IXMLDOMDocument document = CreateDocument();
MSXML2.IXMLDOMElement responseElem = document.createElement("response");
responseElem.setAttribute("type", "SHOWFILES");
int i = 0;
// get files in the specified directory satisfying the
// given criteria
string[] files = Directory.GetFiles(scopeVal.Substring(0, scopeVal.LastIndexOf("\\") + 1), scopeVal.Substring(scopeVal.LastIndexOf("\\") + 1));
files.Initialize();
while (i < files.Length)
{
// make fileinfo elements and fill then up with
// required
MSXML2.IXMLDOMElement file_infoElem = document.createElement("fileinfo");
file_infoElem.setAttribute("filename", files[i]);
file_infoElem.setAttribute("mask", maskVal);
file_infoElem.setAttribute("filesize", Convert.ToString(new FileInfo(files[i]).Length));
++i;
// add them to response element as children;
responseElem.appendChild(file_infoElem);
}
// get files in the specified directory satisfying the
// given criteria
string[] dirs = Directory.GetDirectories(scopeVal.Substring(0, scopeVal.LastIndexOf("\\") + 1), scopeVal.Substring(scopeVal.LastIndexOf("\\") + 1));
dirs.Initialize();
i = 0;
while (i < dirs.Length)
{
// make fileinfo elements and fill then up with
// required
MSXML2.IXMLDOMElement file_infoElem = document.createElement("fileinfo");
file_infoElem.setAttribute("filename", dirs[i] + "\\");
file_infoElem.setAttribute("mask", maskVal);
++i;
// add them to response element as children;
responseElem.appendChild(file_infoElem);
}
// close and save the document
SaveAndCloseDocument(responseElem, document);
}
catch (Exception e) { WriteErrorResponse(e.Message); }
}
