Files
Umbraco-CMS/umbraco/presentation/requestHandler.cs
hartvig 9dfe873de0 WIP IMacroEngine
[TFS Changeset #81536]
2010-12-06 13:49:34 +00:00

580 lines
26 KiB
C#

using System;
using System.Collections;
using System.Diagnostics;
using System.Reflection;
using System.Web;
using System.Xml;
using umbraco.BusinessLogic;
using umbraco.cms.businesslogic.member;
using umbraco.cms.businesslogic.template;
using umbraco.cms.businesslogic.web;
using umbraco.interfaces;
using umbraco.IO;
using umbraco.presentation.nodeFactory;
namespace umbraco {
/// <summary>
/// Summary description for requestHandler.
/// </summary>
public class requestHandler {
#region public properties
public XmlNode currentPage;
public String PageXPathQuery {
get { return _pageXPathQuery; }
}
#endregion
private static Hashtable _processedRequests = new Hashtable();
private static string pageXPathQueryStart = "/root";
private static string _urlName = string.Empty;
private static bool _urlNameInitialized = false;
private static XmlDocument _customHandlers;
private string _pageXPathQuery = string.Empty;
private bool _doNotCache = false;
public static void ClearProcessedRequests() {
_processedRequests.Clear();
}
public static string cleanUrl() {
if (HttpContext.Current.Items["UmbPage"] == null)
return string.Empty;
string tmp = HttpContext.Current.Items["UmbPage"].ToString();
string root = SystemDirectories.Root.ToLower();
//if we are running in a virtual dir
if (!string.IsNullOrEmpty(root) && tmp.StartsWith(root))
{
tmp = tmp.Substring(root.Length);
}
if (tmp == "/default.aspx")
tmp = string.Empty;
else if (tmp == "/")
tmp = string.Empty;
else if (tmp == SystemDirectories.Root.ToLower())
tmp = string.Empty;
return tmp;
}
// Init urlName to correspond to web.config entries (umbracoUrlForbittenCharacters and umbracoUrlSpaceCharacter).
// Needed to compensate for known asp.net framework error KB826437:
// http://support.microsoft.com/default.aspx?scid=kb;EN-US;826437
private static void InitializeUrlName() {
/* string toReplace = string.Empty;
string replaceWith = string.Empty;
XmlNode replaceChars = UmbracoSettings.UrlReplaceCharacters;
foreach (XmlNode n in replaceChars.SelectNodes("char"))
{
if (xmlHelper.GetNodeValue(n).Trim() != string.Empty)
{
toReplace += n.Attributes.GetNamedItem("org").Value;
replaceWith += n.FirstChild.Value.Trim();
}
}
_urlName = "translate(@urlName, '" + toReplace + "','" + replaceWith + "')";
*/
_urlName = "@urlName";
_urlNameInitialized = true;
}
public static string CreateXPathQuery(string url, bool checkDomain) {
string _tempQuery = "";
if (GlobalSettings.HideTopLevelNodeFromPath && checkDomain)
{
_tempQuery = "/root" + getChildContainerName() + "/*";
}
else if (checkDomain)
_tempQuery = "/root" + getChildContainerName();
string[] requestRawUrl = url.Split("/".ToCharArray());
// Check for Domain prefix
string domainUrl = "";
if (checkDomain && Domain.Exists(HttpContext.Current.Request.ServerVariables["SERVER_NAME"]))
{
// we need to get the node based on domain
INode n = new Node(Domain.GetRootFromDomain(HttpContext.Current.Request.ServerVariables["SERVER_NAME"]));
domainUrl = n.UrlName; // we don't use niceUrlFetch as we need more control
if (n.Parent != null)
{
while (n.Parent != null)
{
n = n.Parent;
domainUrl = n.UrlName + "/" + domainUrl;
}
}
domainUrl = "/" + domainUrl;
// If at domain root
if (url == "") {
_tempQuery = "";
requestRawUrl = domainUrl.Split("/".ToCharArray());
HttpContext.Current.Trace.Write("requestHandler",
"Redirecting to domain: " +
HttpContext.Current.Request.ServerVariables["SERVER_NAME"] +
", nodeId: " +
Domain.GetRootFromDomain(
HttpContext.Current.Request.ServerVariables["SERVER_NAME"]).
ToString());
} else {
// if it matches a domain url, skip all other xpaths and use this!
string langXpath = CreateXPathQuery(domainUrl + "/" + url, false);
if (content.Instance.XmlContent.DocumentElement.SelectSingleNode(langXpath) != null)
return langXpath;
else if (UmbracoSettings.UseDomainPrefixes)
return "/domainprefixes-are-used-so-i-do-not-work";
}
} else if (url == "" && !GlobalSettings.HideTopLevelNodeFromPath)
_tempQuery += "/*";
bool rootAdded = false;
if (GlobalSettings.HideTopLevelNodeFromPath && requestRawUrl.Length == 1)
{
HttpContext.Current.Trace.Write("umbracoRequestHandler", "xpath: '" + _tempQuery + "'");
if (_tempQuery == "")
_tempQuery = "/root" + getChildContainerName() + "/*";
_tempQuery = "/root" + getChildContainerName() + "/* [" + _urlName +
" = \"" + requestRawUrl[0].Replace(".aspx", "").ToLower() + "\"] | " + _tempQuery;
HttpContext.Current.Trace.Write("umbracoRequestHandler", "xpath: '" + _tempQuery + "'");
rootAdded = true;
}
for (int i = 0; i <= requestRawUrl.GetUpperBound(0); i++)
{
if (requestRawUrl[i] != "")
_tempQuery += getChildContainerName() + "/* [" + _urlName + " = \"" + requestRawUrl[i].Replace(".aspx", "").ToLower() +
"\"]";
}
if (GlobalSettings.HideTopLevelNodeFromPath && requestRawUrl.Length == 2)
{
_tempQuery += " | " + pageXPathQueryStart + getChildContainerName() + "/* [" + _urlName + " = \"" +
requestRawUrl[1].Replace(".aspx", "").ToLower() + "\"]";
}
HttpContext.Current.Trace.Write("umbracoRequestHandler", "xpath: '" + _tempQuery + "'");
Debug.Write(_tempQuery + "(" + pageXPathQueryStart + ")");
if (checkDomain)
return _tempQuery;
else if (!rootAdded)
return pageXPathQueryStart + _tempQuery;
else
return _tempQuery;
}
private static string getChildContainerName()
{
if (!String.IsNullOrEmpty(UmbracoSettings.TEMP_FRIENDLY_XML_CHILD_CONTAINER_NODENAME))
return "/" + UmbracoSettings.TEMP_FRIENDLY_XML_CHILD_CONTAINER_NODENAME;
else
return "";
}
public requestHandler(XmlDocument umbracoContent, String url) {
HttpContext.Current.Trace.Write("request handler", "current url '" + url + "'");
bool getByID = false;
string currentDomain = HttpContext.Current.Request.ServerVariables["SERVER_NAME"];
if (!_urlNameInitialized)
InitializeUrlName();
// The url exists in cache, and the domain doesn't exists (which makes it ok to do a cache look up on the url alone)
// TODO: NH: Remove the flag for friendlyxmlschema when real schema is implemented
// as the friendlyxmlschema doesn't have any identifier keys we can't do a lookup
// based on ID yet.
if (_processedRequests.ContainsKey(url) && !Domain.Exists(currentDomain))
{
getByID = true;
_pageXPathQuery = _processedRequests[url].ToString();
}
// The url including the domain exists in cache
else if (_processedRequests.ContainsKey(currentDomain + url))
{
getByID = true;
_pageXPathQuery = _processedRequests[currentDomain + url].ToString();
}
// The url isn't cached
else {
if (url == "") {
url = "";
_pageXPathQuery = CreateXPathQuery(url, true);
// Never cache roots
_doNotCache = true;
} else {
// If url is an integer, then asume it's the ID of the page
if (url[0] == '/')
url = url.Substring(1, url.Length - 1);
int result;
if (int.TryParse(url, out result)) {
_pageXPathQuery = url;
getByID = true;
} else {
if (!string.IsNullOrEmpty(url)) {
_pageXPathQuery = CreateXPathQuery(url, true);
} else {
_pageXPathQuery = Document.GetRootDocuments()[0].Id.ToString();
getByID = true;
}
}
}
}
HttpContext.Current.Trace.Write("umbracoRequestHandler",
string.Format("Just before xPath query ({0}, '{1}')", getByID,
_pageXPathQuery));
if (getByID)
currentPage = umbracoContent.GetElementById(_pageXPathQuery.Trim());
else {
HttpContext.Current.Trace.Write("umbracoRequestHandler",
"pageXPathQueryStart: '" + pageXPathQueryStart + "'");
currentPage = umbracoContent.SelectSingleNode(pageXPathQueryStart + _pageXPathQuery);
if (currentPage == null) {
// If no node found, then try with a relative page query
currentPage = umbracoContent.SelectSingleNode("/" + _pageXPathQuery);
}
// Add to url cache
if (currentPage != null && !_doNotCache) {
string prefixUrl = "";
if (Domain.Exists(currentDomain))
prefixUrl = currentDomain;
if (url.Substring(0, 1) != "/")
url = "/" + url;
if (_processedRequests.ContainsKey(prefixUrl + url))
_processedRequests.Remove(prefixUrl + url);
_processedRequests.Add(prefixUrl + url, currentPage.Attributes.GetNamedItem("id").Value);
HttpContext.Current.Trace.Write("umbracoRequestHandler",
"Adding to cache... ('" + prefixUrl + url + "')");
}
}
if (currentPage == null)
{
// No node found, try custom url handlers defined in /config/404handlers.config
if (_customHandlers == null) {
_customHandlers = new XmlDocument();
_customHandlers.Load(
IOHelper.MapPath( SystemFiles.NotFoundhandlersConfig ) );
}
for (int i = 0; i < _customHandlers.DocumentElement.ChildNodes.Count; i++) {
// Load handler
string _chAssembly =
_customHandlers.DocumentElement.ChildNodes[i].Attributes.GetNamedItem("assembly").Value;
string _chType = _customHandlers.DocumentElement.ChildNodes[i].Attributes.GetNamedItem("type").Value;
// check for namespace
string _chNameSpace = _chAssembly;
if (_customHandlers.DocumentElement.ChildNodes[i].Attributes.GetNamedItem("namespace") != null)
_chNameSpace =
_customHandlers.DocumentElement.ChildNodes[i].Attributes.GetNamedItem("namespace").Value;
try {
// Reflect to execute and check whether the type is umbraco.main.IFormhandler
HttpContext.Current.Trace.Write("notFoundHandler",
string.Format("Trying NotFoundHandler '{0}.{1}'...", _chAssembly,
_chType));
Assembly assembly =
Assembly.LoadFrom(
IOHelper.MapPath( SystemDirectories.Bin + "/" + _chAssembly + ".dll"));
Type type = assembly.GetType(_chNameSpace + "." + _chType);
INotFoundHandler typeInstance = Activator.CreateInstance(type) as INotFoundHandler;
if (typeInstance != null) {
typeInstance.Execute(url);
if (typeInstance.redirectID > 0) {
int redirectID = typeInstance.redirectID;
currentPage = umbracoContent.GetElementById(redirectID.ToString());
HttpContext.Current.Trace.Write("notFoundHandler",
string.Format(
"NotFoundHandler '{0}.{1} found node matching {2} with id: {3}",
_chAssembly, _chType, url, redirectID));
// check for caching
if (typeInstance.CacheUrl) {
if (url.Substring(0, 1) != "/")
url = "/" + url;
_processedRequests.Add(url, redirectID.ToString());
HttpContext.Current.Trace.Write("notFoundHandler",
string.Format("Added to cache '{0}', '{1}'...", url,
redirectID));
}
break;
}
}
} catch (Exception e) {
HttpContext.Current.Trace.Warn("notFoundHandler",
"Error implementing notfoundHandler '" + _chAssembly + "." +
_chType + "'", e);
}
}
}
HttpContext.Current.Trace.Write("umbracoRequestHandler", "After xPath query");
// Check for internal redirects
if (currentPage != null) {
XmlNode internalRedirect = currentPage.SelectSingleNode(UmbracoSettings.UseLegacyXmlSchema ? "data [@alias = 'umbracoInternalRedirectId']" : "umbracoInternalRedirectId");
if (internalRedirect != null && internalRedirect.FirstChild != null && !String.IsNullOrEmpty(internalRedirect.FirstChild.Value)) {
HttpContext.Current.Trace.Write("internalRedirection", "Found internal redirect id via umbracoInternalRedirectId property alias");
int internalRedirectId = 0;
if (int.TryParse(internalRedirect.FirstChild.Value, out internalRedirectId) && internalRedirectId > 0) {
currentPage =
umbracoContent.GetElementById(
internalRedirectId.ToString());
HttpContext.Current.Trace.Write("internalRedirection", "Redirecting to " + internalRedirect.FirstChild.Value);
} else
HttpContext.Current.Trace.Warn("internalRedirection", "The redirect id is not an integer: " + internalRedirect.FirstChild.Value);
}
}
// Check access
HttpContext.Current.Trace.Write("umbracoRequestHandler", "Access checking started");
if (currentPage != null) {
if (
Access.IsProtected(int.Parse(currentPage.Attributes.GetNamedItem("id").Value),
currentPage.Attributes.GetNamedItem("path").Value)) {
HttpContext.Current.Trace.Write("umbracoRequestHandler", "Page protected");
if (System.Web.Security.Membership.GetUser() == null || !library.IsLoggedOn()) {
HttpContext.Current.Trace.Write("umbracoRequestHandler", "Not logged in - redirecting to login page...");
currentPage = umbracoContent.GetElementById(Access.GetLoginPage(currentPage.Attributes.GetNamedItem("path").Value).ToString());
} else {
if (System.Web.Security.Membership.GetUser() != null && !Access.HasAccces(int.Parse(currentPage.Attributes.GetNamedItem("id").Value), System.Web.Security.Membership.GetUser().ProviderUserKey)) {
HttpContext.Current.Trace.Write("umbracoRequestHandler", "Member has not access - redirecting to error page...");
currentPage = content.Instance.XmlContent.GetElementById(Access.GetErrorPage(currentPage.Attributes.GetNamedItem("path").Value).ToString());
}
}
} else
HttpContext.Current.Trace.Write("umbracoRequestHandler", "Page not protected");
}
HttpContext.Current.Trace.Write("umbracoRequestHandler", "Access checking ended");
}
}
public class SearchForAlias : INotFoundHandler {
private int _redirectID = -1;
private bool _cacheUrl = true;
#region INotFoundHandler Members
public bool Execute(string url) {
bool _succes = false;
string tempUrl = url.Trim('/').Replace(".aspx", string.Empty).ToLower();
if (tempUrl.Length > 0) {
HttpContext.Current.Trace.Write("urlAlias", "'" + tempUrl + "'");
// Check for domain
string currentDomain = System.Web.HttpContext.Current.Request.ServerVariables["SERVER_NAME"];
string prefixXPath = "";
if (Domain.Exists(currentDomain)) {
string xpathDomain = UmbracoSettings.UseLegacyXmlSchema ? "//node [@id = '{0}']" : "//* [@isDoc and @id = '{0}']";
prefixXPath = string.Format(xpathDomain, Domain.GetRootFromDomain(currentDomain));
_cacheUrl = false;
}
// the reason we have almost two identical queries in the xpath is to support scenarios where the user have
// entered "/my-url" instead of "my-url" (ie. added a beginning slash)
string xpath = UmbracoSettings.UseLegacyXmlSchema ? "//node [contains(concat(',',translate(data [@alias = 'umbracoUrlAlias'], ' ', ''),','),',{0},') or contains(concat(',',translate(data [@alias = 'umbracoUrlAlias'], ' ', ''),','),',{1},')]" :
"//* [@isDoc and (contains(concat(',',translate(umbracoUrlAlias, ' ', ''),','),',{0},') or contains(concat(',',translate(umbracoUrlAlias, ' ', ''),','),',{1},'))]";
string query = String.Format(prefixXPath + xpath, tempUrl, "/" + tempUrl);
XmlNode redir =
content.Instance.XmlContent.DocumentElement.SelectSingleNode(query);
if (redir != null) {
_succes = true;
_redirectID = int.Parse(redir.Attributes.GetNamedItem("id").Value);
}
}
return _succes;
}
public bool CacheUrl {
get { return _cacheUrl; }
}
public int redirectID {
get {
// TODO: Add SearchForAlias.redirectID getter implementation
return _redirectID;
}
}
#endregion
}
public class SearchForProfile : INotFoundHandler {
private static int _profileId = -1;
private int _redirectID = -1;
#region INotFoundHandler Members
public bool CacheUrl {
get {
// Do not cache profile urls, we need to store the login name
return false;
}
}
public bool Execute(string url) {
bool _succes = false;
url = url.Replace(".aspx", string.Empty);
if (url.Length > 0) {
if (url.Substring(0, 1) == "/")
url = url.Substring(1, url.Length - 1);
if (url.IndexOf("/") > 0) {
// Check if we're at the profile page
if (url.Substring(0, url.IndexOf("/")) == GlobalSettings.ProfileUrl) {
if (_profileId < 0) {
// /root added to query to solve umbRuntime bug
string _tempQuery =
requestHandler.CreateXPathQuery(url.Substring(0, url.IndexOf("/")), false);
_profileId =
int.Parse(
content.Instance.XmlContent.SelectSingleNode(_tempQuery).Attributes.GetNamedItem(
"id").Value);
}
HttpContext.Current.Items["umbMemberLogin"] =
url.Substring(url.IndexOf("/") + 1, url.Length - url.IndexOf("/") - 1);
_succes = true;
_redirectID = _profileId;
}
}
}
return _succes;
}
public int redirectID {
get {
// TODO: Add SearchForProfile.redirectID getter implementation
return _redirectID;
}
}
#endregion
}
public class SearchForTemplate : INotFoundHandler {
private int _redirectID = -1;
#region INotFoundHandler Members
public bool CacheUrl {
get {
// Do not cache profile urls, we need to store the login name
return false;
}
}
public bool Execute(string url) {
bool _succes = false;
url = url.Replace(".aspx", string.Empty);
string currentDomain = HttpContext.Current.Request.ServerVariables["SERVER_NAME"];
if (url.Length > 0) {
if (url.Substring(0, 1) == "/")
url = url.Substring(1, url.Length - 1);
XmlNode urlNode = null;
string templateAlias = "";
// We're at domain root
if (url.IndexOf("/") == -1)
{
if (Domain.Exists(currentDomain))
urlNode = content.Instance.XmlContent.GetElementById(Domain.GetRootFromDomain(currentDomain).ToString());
else
urlNode = content.Instance.XmlContent.GetElementById(Document.GetRootDocuments()[0].Id.ToString());
templateAlias = url.ToLower();
}
else
{
string theRealUrl = url.Substring(0, url.LastIndexOf("/"));
string realUrlXPath = requestHandler.CreateXPathQuery(theRealUrl, true);
urlNode = content.Instance.XmlContent.SelectSingleNode(realUrlXPath);
templateAlias =
url.Substring(url.LastIndexOf("/") + 1, url.Length - url.LastIndexOf(("/")) - 1).ToLower();
}
if (urlNode != null && Template.GetTemplateIdFromAlias(templateAlias) != 0)
{
_redirectID = int.Parse(urlNode.Attributes.GetNamedItem("id").Value);
HttpContext.Current.Items["altTemplate"] = templateAlias;
HttpContext.Current.Trace.Write("umbraco.altTemplateHandler",
string.Format("Templated changed to: '{0}'",
HttpContext.Current.Items["altTemplate"]));
_succes = true;
}
}
return _succes;
}
public int redirectID {
get {
// TODO: Add SearchForProfile.redirectID getter implementation
return _redirectID;
}
}
#endregion
}
public class handle404 : INotFoundHandler {
#region INotFoundHandler Members
private int _redirectID = 0;
public bool CacheUrl {
get {
return false;
}
}
public bool Execute(string url) {
try {
Log.Add(LogTypes.NotFound, User.GetUser(0), -1,
url + " (from '" + HttpContext.Current.Request.UrlReferrer + "')");
// Test if the error404 not child elements
string error404 = umbraco.library.GetCurrentNotFoundPageId();
_redirectID = int.Parse(error404);
HttpContext.Current.Response.StatusCode = 404;
return true;
} catch (Exception err) {
Log.Add(LogTypes.Debug, User.GetUser(0), -1, err.ToString());
return false;
}
}
public int redirectID {
get {
return _redirectID;
}
}
#endregion
}
}