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| 7/4/2008 11:12:58 AM |
| 207.35.224.2 |
| 6/30/2008 6:39:07 AM |
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Important: this page will look for this in your web.config (won't work without it)
<appSettings>
<!-- this key defines the directory (off of the site root)
that the upload code will place uploaded files -->
<add key="UploadDirectory" value="content\upload" />
</appSettings>
The locations that the upload page puts files are hardcoded (images/, docs/, etc.) and organized according to the extension on your uploaded file.
In addition, you will need to re-compile the entire solution in VS.NET (after adding the upload.aspx and upload.aspx.cs files, of course) or place a src="upload.aspx.cs" directive at the top of the aspx page (i.e. - inside the first line of upload.aspx: <%@ Page ... %>).
<%@ Page language="c#" AutoEventWireUp="false" Codebehind="upload.aspx.cs" Inherits="FlexWiki.Upload.FileUpload" %>
<HTML>
<HEAD>
<%= InsertStylesheetReferences() %>
<LINK href="wiki.css" type="text/css" rel="stylesheet">
<LINK href="wiki.css" type="text/css" rel="stylesheet">
</HEAD>
<body>
<FORM id="Form1" method="post" encType="multipart/form-data" runat="server">
<TABLE id="Table2" cellPadding="10" border="0" width="80%" align="center">
<TR>
<TD id="BorderRight" bgColor="lightsteelblue" colSpan="2">
<DIV class="StaticTopicBar" id="Div" style="DISPLAY: block" leftMargin="40" rightMargin="40"><FONT color="#000000"><STRONG>Upload
A File</STRONG></FONT></DIV>
</TD>
</TR>
<TR>
<TD colSpan="2">
<P align="left"><INPUT id="filMyFile" type="file" size="60" name="filMyFile" runat="server">
<asp:button id="cmdSend" runat="server" Text="Send"></asp:button></P>
</TD>
</TR>
<TR>
<TD colSpan="2">
<P>Pictures (.jpg/.gif/.png) are put in the <B>/upload/images/</B> directory.</P>
<P>Html (.htm/.html) are put in the <B>/upload/html/</B> directory.</P>
<P>Word files (.doc) are put in the <B>/upload/doc/</B> directory.</P>
<P>All other files are put in the <B>/upload/files/</B> directory.</P>
</TD>
</TR>
<TR>
<TD colSpan="2">
<P>
<asp:Label id="lblInfo" runat="server" Font-Bold="True" Visible="false"></asp:Label></P>
<P>
<asp:Label id="lblLocation" runat="server" Visible="False"></asp:Label></P>
<P>
<asp:Label id="lblErrorMessage" runat="server" Visible="False"></asp:Label></P>
<P>
<asp:Label id="lblText1" runat="server"></asp:Label></P>
<P>
<asp:Label id="lblLinkToHome" runat="server" Visible="False"><a href="../default.aspx">Return
to HomePage</a> or press the back button.</asp:Label></P>
</TD>
</TD>
<TR>
<TD align="center" colSpan="2">
<asp:Image id="imgFile" runat="server" Visible="False"></asp:Image>
</TD>
</TR>
</TABLE>
</TABLE>
</FORM>
</body>
</HTML>
/*
This page is for use with FlexWiki but can be adapted to other things
Modified from existing code
Original author: WouterCX
Refactored by: JustinCollum
Please note that this page will look for this in your web.config (won't work without it)
<appSettings>
<!-- this key defines the directory (off of the site root)
that the upload code will place uploaded files -->
<add key="UploadDirectory" value="content\upload" />
</appSettings>
//*/
using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Data;
using System.Data.OleDb;
using System.Text.RegularExpressions;
using System.Configuration;
namespace FlexWiki.Upload
{
/// <summary>
/// Summary description for WebForm1.
/// </summary>
public class FileUpload : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Image imgFile;
protected System.Web.UI.WebControls.Label lblErrorMessage;
protected System.Web.UI.WebControls.Label lblInfo;
protected System.Web.UI.WebControls.Label lblText1;
protected System.Web.UI.HtmlControls.HtmlInputFile filMyFile;
protected System.Web.UI.WebControls.Button cmdSend;
protected System.Web.UI.WebControls.Label lblLocation;
protected System.Web.UI.WebControls.Label lblLinkToHome;
protected Label lblFile;
override protected void OnInit(EventArgs e)
{
InitializeComponent();
base.OnInit(e);
}
private void InitializeComponent()
{
this.cmdSend.Click += new System.EventHandler(this.cmdSend_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
private void Page_Load(object sender, System.EventArgs e)
{
if (!Page.IsPostBack)
{
}
}
// Processes click on our cmdSend button
private void cmdSend_Click(object sender, System.EventArgs e)
{
try
{
// Check to see if file was uploaded
if( filMyFile.PostedFile != null )
{
// clear the error message
lblErrorMessage.Text = "";
lblErrorMessage.Visible = false;
lblLinkToHome.Visible = false;
lblInfo.Visible = false;
lblLocation.Visible = false;
// Get a reference to PostedFile object
HttpPostedFile myFile = filMyFile.PostedFile;
// Get size of uploaded file
int nFileLen = myFile.ContentLength;
// make sure the size of the file is > 0
if( nFileLen > 0 )
{
// Allocate a buffer for reading of the file
byte[] myData = new byte[nFileLen];
string strDirectoryToWriteTo;
string strWriteToFile;
string strFilename;
// Read uploaded file from the Stream
myFile.InputStream.Read(myData, 0, nFileLen);
strDirectoryToWriteTo = ReturnDirectoryToWriteTo(myFile.FileName);
// Create a name for the file to store
strFilename = Path.GetFileName(myFile.FileName); //
// Write data into a file
strWriteToFile = Server.MapPath(strFilename);
// Get the current virtual directory, mapped to a path
strWriteToFile = Server.MapPath("") + "\\" + strDirectoryToWriteTo + "\\" + strFilename;
// fileNumber var is the one digit number that is added to a file name if it exists
int fileNumber = 0;
string fileNameAdder = "";
string newFileName = "";
// append a three digit int to the file name to make it unique
while (File.Exists(strWriteToFile))
{
if (fileNumber > 9)
{
throw new System.IO.IOException("Too many copies of file exist on server.");
}
fileNumber++;
fileNameAdder = ("-" + fileNumber.ToString("0")+ ".");
newFileName = strWriteToFile.Replace(".",fileNameAdder);
if (File.Exists(newFileName))
{
// if the new file name is taken start over
continue;
}
else
{
// if the new file name is not taken, terminate the loop
strWriteToFile = newFileName;
break;
}
}
// write the file out
WriteToFile(strWriteToFile, ref myData);
// get the name of the file
string fileName = OnlyFileName(strWriteToFile);
// Set label's text
lblInfo.Text =
"Filename: " + fileName + "<br />" +
"Size: " + nFileLen.ToString("0,0") + " bytes.<br/><p />";
// show the location
lblLocation.Text = "<p/>Relative path: <p/>" +
@"../" + strDirectoryToWriteTo.Replace(@"\", @"/") + @"/" + fileName + "<p/>" +
"Please note the location and file name before leaving this page.";
// show the full path
lblText1.Text = "URL path:<p />"
+ RootUrl(Request) + strDirectoryToWriteTo.Replace(@"\",@"/") + "/" + OnlyFileName(strWriteToFile);
lblText1.Visible = true;
// Set URL of the the object to point to the file we've just saved
if (IsImageFile(strWriteToFile))
{
//lblText1.Text = "File available at:<br>" + strWriteToFile;
//lblText1.Visible = true;
imgFile.ImageUrl = RootUrl(Request) + strDirectoryToWriteTo.Replace(@"\",@"/") + "/" + OnlyFileName(strWriteToFile);
imgFile.ToolTip = "This file was stored as file.";
// show the images and text
imgFile.Visible = true;
lblText1.Visible = true;
}
lblLocation.Visible = true;
lblInfo.Visible = true;
lblLinkToHome.Visible = true;
}
}
}
catch (System.IO.IOException)
{
lblErrorMessage.Text = "There are too many files on the server with that name. Please rename it and upload again.";
lblErrorMessage.ForeColor = System.Drawing.Color.Red;
lblErrorMessage.Visible = true;
}
}
private static bool IsImageFile(string strFullPath)
{
bool blnIsImage = false;
strFullPath = strFullPath.ToUpper();
if ((strFullPath.IndexOf(".JPG") > 0) || (strFullPath.IndexOf(".GIF") > 0) || (strFullPath.IndexOf(".PNG")>0))
{
blnIsImage = true;
}
return blnIsImage;
}
private static string OnlyFileName (string strFullPath)
{
string strImageFileName;
int intLastIndex;
intLastIndex = strFullPath.LastIndexOf("\\")+1;
strImageFileName = strFullPath.Substring(intLastIndex,strFullPath.Length-intLastIndex);
return strImageFileName;
}
public static String Replace(String strText,String strFind,String
strReplace)
{
int iPos=strText.IndexOf(strFind);
String strReturn="";
while(iPos!=-1)
{
strReturn+=strText.Substring(0,iPos) + strReplace;
strText=strText.Substring(iPos+strFind.Length);
iPos=strText.IndexOf(strFind);
}
if(strText.Length>0)
strReturn+=strText;
return strReturn;
}
// Writes file to current folder
private void WriteToFile(string strPath, ref byte[] Buffer)
{
// Create a file
//Response.Write (strPath);
FileStream newFile = new FileStream(strPath, FileMode.Create);
// Write data to the file
newFile.Write(Buffer, 0, Buffer.Length);
// Close file
newFile.Close();
}
// Generates database connection string
private string ReturnDirectoryToWriteTo(string strFileName)
{
// get the root directory for uploaded files
string strRootUploadDir = ConfigurationSettings.AppSettings["UploadDirectory"];
string strReturnDirectory;
strReturnDirectory = "";
strFileName = strFileName.ToLower();
if ((strFileName.EndsWith(".jpg"))||(strFileName.EndsWith(".gif")))
{
strReturnDirectory= strRootUploadDir + "\\images";
}
else if ((strFileName.EndsWith(".htm"))||(strFileName.EndsWith(".html")))
{
strReturnDirectory= strRootUploadDir + "\\html";
}
else if (strFileName.EndsWith(".doc"))
{
strReturnDirectory= strRootUploadDir + "\\doc";
}
else
{
strReturnDirectory= strRootUploadDir + "\\files";
}
return strReturnDirectory;
}
// Reads the name of current web page
private string GetMyName()
{
// Get the script name
string strScript = Request.ServerVariables["SCRIPT_NAME"];
// Get position of last slash
int nPos = strScript.LastIndexOf("/");
// Get everything after slash
if( nPos > -1 )
strScript = strScript.Substring(nPos + 1);
return strScript;
}
// Reads the servername of current webserver
private string GetMyServerName()
{
// Get the script name
string strServer = Request.ServerVariables["SERVER_NAME"];
// Get position of last slash
int nPos = strServer.LastIndexOf("/");
// Get everything after slash
if( nPos > -1 )
strServer = strServer.Substring(nPos + 1);
return strServer;
}
protected string InsertStylesheetReferences()
{
string answer = "<LINK href='" + RootUrl(Request) + "wiki.css' type='text/css' rel='stylesheet'>";
return answer;
}
protected string RootUrl(HttpRequest req)
{
string full = req.Url.ToString();
if (req.Url.Query != null && req.Url.Query.Length > 0)
{
full = full.Substring(0, full.Length - req.Url.Query.Length);
}
if (req.PathInfo != null && req.PathInfo.Length > 0)
{
full = full.Substring(0, full.Length - (req.PathInfo.Length + 1));
}
full = full.Substring(0, full.LastIndexOf('/') + 1);
return full;
}
}
}
Sorry for the absence of vertical white space. It's easier to cut and paste into flexwiki if it isn't there.
Note that the sub folders (images, files, doc, html) have to exist already, the script doesn't create them automatically. -- Green Dragon
Note also that the upload folder itself must be manually created. Note also that while the upload page claims to handle png, the code doesn't explicitly deal with that extension, so they end up in the files directory if you don't edit this. I also had to change lblLinkToHome to simply default.aspx instead of referring to the parent directory. Perhaps depends on where you put the upload.aspx page. I also don't know if content\upload is supposed to be there automatically, but I didn't have a content directory so I just used upload and created an upload directory. -- Tom Stewart
private string ReturnDirectoryToWriteTo(string strFileName)
{
// get the root directory for uploaded files
// you should pre-create the folders under your upload folder (i.e., \images, \html, \doc, \xls)
string strRootUploadDir = ConfigurationSettings.AppSettings["UploadDirectory"];
string strReturnDirectory;
strReturnDirectory = "";
strFileName = strFileName.ToLower();
if ((strFileName.EndsWith(".jpg"))||(strFileName.EndsWith(".gif"))||(strFileName.EndsWith(".png")))
{
strReturnDirectory= strRootUploadDir + "\\images";
}
else if ((strFileName.EndsWith(".htm"))||(strFileName.EndsWith(".html")))
{
strReturnDirectory= strRootUploadDir + "\\html";
}
else if ((strFileName.EndsWith(".doc"))||(strFileName.EndsWith(".rtf")))
{
strReturnDirectory= strRootUploadDir + "\\doc";
}
else if (strFileName.EndsWith(".xls"))
{
strReturnDirectory= strRootUploadDir + "\\xls";
}
else if ((strFileName.EndsWith(".ppt"))||(strFileName.EndsWith(".pps")))
{
strReturnDirectory= strRootUploadDir + "\\ppt";
}
else if (strFileName.EndsWith(".mdb"))
{
strReturnDirectory= strRootUploadDir + "\\mdb";
}
else if (strFileName.EndsWith(".pdf"))
{
strReturnDirectory= strRootUploadDir + "\\pdf";
}
else if (strFileName.EndsWith(".exe"))
{
strReturnDirectory= strRootUploadDir + "\\exe";
}
else if ((strFileName.EndsWith(".txt"))||(strFileName.EndsWith(".ini"))||(strFileName.EndsWith(".log"))||(strFileName.EndsWith(".asc"))||(strFileName.EndsWith(".inf")))
{
strReturnDirectory= strRootUploadDir + "\\txt";
}
else
{
strReturnDirectory= strRootUploadDir + "\\files";
}
return strReturnDirectory;
}
