|
<%
'
' ---------------------------------------------------------------------------
' Copyright(c) 2000-2002, Laurens Pit
' All rights reserved.
'
' Redistribution and use in source and binary forms, with or without
' modification, are permitted provided that the following conditions
' are met:
'
' * Redistributions of source code must retain the above copyright
' notice, this list of conditions and the following disclaimer.
' * Redistributions in binary form must reproduce the above
' copyright notice, this list of conditions and the following
' disclaimer in the documentation and/or other materials provided
' with the distribution.
' * Neither the name of OpenWiki nor the names of its contributors
' may be used to endorse or promote products derived from this
' software without specific prior written permission.
'
' THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
' "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
' LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
' FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
' REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
' INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
' BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
' LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
' CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
' LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
' ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
' POSSIBILITY OF SUCH DAMAGE.
'
' ---------------------------------------------------------------------------
' $Source: /usr/local/cvsroot/openwiki/dist/owbase/ow/owtransformer.asp,v $
' $Revision: 1.6 $
' $Author: pit $
' ---------------------------------------------------------------------------
'
Class Transformer
Private vXmlDoc, vXslDoc, vXslTemplate, vXslProc, vIsIE
' Public Property Let MSXML_VERSION(pMSXML_VERSION)
' vMSXML_VERSION = pMSXML_VERSION
' End Property
'
' Public Property Let Cache(pCacheXSL)
' vCacheXSL = pCacheXSL
' End Property
'
' Public Property Let StylesheetsDir(pDir)
' vStylesheetsDir = pDir
' End Property
'
' Public Property Let Encoding(pEncoding)
' vEncoding = pEncoding
' End Property
'
' Public Property Let WriteToOutput(pWriteToOutput)
' vWriteToOutput = pWriteToOutput
' End Property
Private Sub Class_Initialize()
On Error Resume Next
If MSXML_VERSION = 4 Then
Set vXmlDoc = Server.CreateObject("Msxml2.FreeThreadedDOMDocument.4.0")
Else
Set vXmlDoc = Server.CreateObject("Msxml2.FreeThreadedDOMDocument")
End If
vXmlDoc.async = False
vXmlDoc.preserveWhiteSpace = True
If Not IsObject(vXmlDoc) Then
' As this is the first time we try to instantiate the XML Doc object
' let's assume the user hasn't configured his/her owconfig file
' correctly yet. Switch MS XML Version to try again.
If MSXML_VERSION = 4 Then
MSXML_VERSION = 3
Else
MSXML_VERSION = 4
End If
If MSXML_VERSION = 4 Then
Set vXmlDoc = Server.CreateObject("Msxml2.FreeThreadedDOMDocument.4.0")
Else
Set vXmlDoc = Server.CreateObject("Msxml2.FreeThreadedDOMDocument")
End If
vXmlDoc.async = False
vXmlDoc.preserveWhiteSpace = True
If Not IsObject(vXmlDoc) Then
EndWithErrorMessage()
Elseif MSXML_VERSION = 3 Then
Response.Write("<b>WARNING:</b>You've configured your OpenWiki to use the MSXML v4 component, but you don't appear to have this installed. The application now falls back to use the MSXML v3 component. Please update your config file (usually file owconfig_default.asp) or install MSXML v4.<br />")
Else
Response.Write("<b>WARNING:</b>You've configured your OpenWiki to use the MSXML v3 component, but you don't appear to have this installed. The application now falls back to use the MSXML v4 component. Please update your config file (usually file owconfig_default.asp) or install MSXML v3.<br />")
End If
End If
Dim vTemp
vTemp = Request.ServerVariables("HTTP_USER_AGENT")
If (InStr(vTemp, " MSIE 5.5;") > 0) Or (InStr(vTemp, " MSIE 6") > 0) Then
vIsIE = True
Else
vIsIE = False
End If
End Sub
Private Sub Class_Terminate()
Set vXslProc = Nothing
Set vXslTemplate = Nothing
Set vXslDoc = Nothing
Set vXmlDoc = Nothing
End Sub
Private Sub EndWithErrorMessage()
Response.Write("<h2>Error: Missing MSXML Parser 3.0 Release</h2>")
Response.Write("In order for this script to work correctly the component " _
& "MSXML Parser 3.0 Release " _
& "or a higher version needs to be installed on the server. " _
& "You can download this component from " _
& "<a href=""http://msdn.microsoft.com/xml"">http://msdn.microsoft.com/xml</a>.")
Response.End
End Sub
Public Sub LoadXSL(pFilename)
On Error Resume Next
Set vXslTemplate = Nothing
vXslTemplate = ""
If cCacheXSL = 1 Then
If IsObject(Application("ow__" & pFilename)) Then
Set vXslTemplate = Application("ow__" & pFilename)
End If
End If
If Not IsObject(vXslTemplate) Then
If MSXML_VERSION = 4 Then
Set vXslDoc = Server.CreateObject("Msxml2.FreeThreadedDOMDocument.4.0")
Else
Set vXslDoc = Server.CreateObject("Msxml2.FreeThreadedDOMDocument")
End If
vXslDoc.async = False
If Not vXslDoc.load(Server.MapPath(OPENWIKI_STYLESHEETS & pFilename)) Then
Response.Write("<p><b>Error in " & pFilename & ":</b> " & vXslDoc.parseError.reason & " line: " & vXslDoc.parseError.Line & " col: " & vXslDoc.parseError.linepos & "</p>")
Response.End
End If
If MSXML_VERSION = 4 Then
Set vXslTemplate = Server.CreateObject("Msxml2.XSLTemplate.4.0")
Else
Set vXslTemplate = Server.CreateObject("Msxml2.XSLTemplate")
End If
If Not IsObject(vXslTemplate) Then
EndWithErrorMessage()
End If
Set vXslTemplate.stylesheet = vXslDoc
If Err.Number <> 0 Then
Response.Write("<p><b>Error in an included stylesheet</p>")
Response.End
End If
If cCacheXSL Then
Set Application("ow__" & pFilename) = vXslTemplate
End If
End If
Set vXslProc = vXslTemplate.createProcessor()
If Not IsObject(vXslProc) Then
EndWithErrorMessage()
End If
On Error Goto 0
End Sub
Public Function TransformXmlDoc(pXmlDoc, pXslFilename)
LoadXSL(pXslFilename)
vXslProc.input = pXmlDoc
vXslProc.transform
TransformXmlDoc = vXslProc.output
End Function
Public Function Transform(pXmlStr)
Transform = TransformXmlStr(pXmlStr, "ow.xsl")
End Function
Public Function TransformXmlStr(pXmlStr, pXslFilename)
Dim vXmlStr
vXmlStr = "<?xml version='1.0' encoding='" & OPENWIKI_ENCODING & "'?>" & vbCRLF _
& gNamespace.ToXML(pXmlStr)
'Response.ContentType = "text/html"
'Response.Write(vXmlStr)
'Response.Write(Server.HTMLEncode(vXmlStr) & "<br /><br />" & vbCRLF & vbCRLF)
'Response.End
If gAction = "xml" Or InStrRev(Request.QueryString, "&xml=1") > 0 Then
If vIsIE Or gAction = "xml" Then
Response.ContentType = "text/xml; charset:" & OPENWIKI_ENCODING & ";"
Response.Write(vXmlStr)
Response.End
Else
pXslFilename = "xmldisplay.xsl"
End If
End If
If Not vXmlDoc.loadXML(vXmlStr) Then
Response.ContentType = "text/html; charset:" & OPENWIKI_ENCODING & ";"
Response.Write("<html><body><b>Invalid XML document</b>:<br /><br />")
Response.Write(vXmlDoc.parseError.reason & " line: " & vXmlDoc.parseError.Line & " col: " & vXmlDoc.parseError.linepos)
Response.Write("<br /><br /><hr />")
Response.Write("<pre>" & Replace(Server.HTMLEncode(vXmlStr), vbCRLF, "<br />") & "</pre>")
Response.Write("</body></html>")
Else
LoadXSL(pXslFilename)
vXslProc.input = vXmlDoc
vXslProc.transform
TransformXmlStr = vXslProc.output
If cEmbeddedMode = 0 Then
If gAction = "edit" Then
Response.ContentType = "text/html; charset:" & OPENWIKI_ENCODING & ";"
Response.Expires = 0 ' expires in a minute
Elseif gAction = "rss" Then
Response.ContentType = "text/xml; charset:" & OPENWIKI_ENCODING & ";"
Else
Response.ContentType = "text/html; charset:" & OPENWIKI_ENCODING & ";"
Response.Expires = -1 ' expires now
'Response.ExpiresAbsolute = Now() - 1
'Response.AddHeader "Cache-Control", "must-revalidate"
Response.AddHeader "Cache-Control", "no-cache"
End If
Response.Write(TransformXmlStr)
End If
End If
End Function
End Class
%>
|
By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.
If a file you wish to view isn't highlighted, and is a text file (not binary), please
let us know and we'll add colourisation support for it.
Jonathan Hodgson works as Software Developer in London, UK.
He started programming in the '80s on a trusty 48k Spectrum before moving to PC development in the early 90s. During the working week most of his time is spent involved in application development both Windows and Web-based; .NET, C#, ASP.NET, SQL Server.
He is a Microsoft Certified Software Developer (MCSD) and MCP for developing web applications using ASP.NET in C# and is always looking for new projects and challenges to work on.
http://www.jonathanhodgson.co.uk/