/// <summary>
/// Resolve the path using redirects. No authentication.
/// </summary>
protected virtual string ResolvePath(string path)
{
HttpRedirect redirect = null;
string[] sections;
int index;
if (path[0] == '/')
{
// split the request path into directory sections
sections = path.Split(Chars.ForwardSlash);
index = -1;
}
else
{
sections = path.Split(Chars.ForwardSlash);
index = -2;
}
// persistance of the current path
path = "/";
// the first iteration?
bool first = true;
// redirected path is absolute?
bool absolute = false;
// iterate the request path sections
while (++index < sections.Length)
{
// is the first iteration?
if (!first)
{
// is the redirect absolute? yes, end the redirects
if (absolute)
{
break;
}
// is the section empty? yes, skip the section
if (sections[index].Length == 0)
{
continue;
}
// append the section
path = path + Chars.ForwardSlash + sections[index];
}
// should the path be redirected?
if (Redirects.TryGetValue(path, out redirect))
{
// update the current path
path = redirect.Target;
absolute = redirect.Absolute;
int iteration = 1;
// while the current path is to be redirected
while (Redirects.TryGetValue(path, out redirect))
{
// update the current path
path = redirect.Target;
absolute = redirect.Absolute;
// have there been an excessive number of redirects?
if (++iteration == 20)
{
// yes, start maintaining a collection of redirected paths
ArrayRig <string> redirects = new ArrayRig <string>();
redirects.Add(path);
// while the current path is to be redirected
while (Redirects.TryGetValue(path, out redirect))
{
// update the current path
path = redirect.Target;
absolute = redirect.Absolute;
// has the redirect path already been hit?
if (redirects.Contains(path))
{
// yes, return false, a redirect loop was hit
Log.Warning("Redirect loop detected. Request denied.");
return(null);
}
// add to the redirected collection
redirects.Add(path);
}
break;
}
}
first = false;
}
else if (first)
{
path = string.Empty;
first = false;
}
}
// return the authentication value
return(path);
}
/// <summary>
/// Check if the WebRequest should be redirected and authenticate the
/// web request. Returns if the request path was resolved successfully.
/// </summary>
protected virtual bool ResolvePath(HttpRequest request)
{
HttpRedirect redirect = null;
HttpRequirement auth;
// split the request path into directory sections
var sections = request.RequestPath.Split(Chars.ForwardSlash);
// persistance of the current path
string path = "/";
// the first iteration?
bool first = true;
// redirected path is absolute?
bool absolute = false;
// is the request path authenticated?
bool authentication = true;
// iterate the request path sections
for (int i = 0; i < sections.Length; ++i)
{
// is the first iteration?
if (!first)
{
// is the redirect absolute? yes, end the redirects
if (absolute)
{
break;
}
// is the section empty? yes, skip the section
if (sections[i].Length == 0)
{
continue;
}
// append the section
path = path + Chars.ForwardSlash + sections[i];
}
// does authentication exist for the request path?
if (Authentication.TryGetValue(path, out auth))
{
// update the authentication
authentication = auth.Allow(request);
}
// should the path be redirected?
if (Redirects.TryGetValue(path, out redirect))
{
// update the current path
path = redirect.Target;
absolute = redirect.Absolute;
// does authentication exist for the request path?
if (Authentication.TryGetValue(path, out auth))
{
// update the authentication
authentication = auth.Allow(request);
}
int iteration = 1;
// while the current path is to be redirected
while (Redirects.TryGetValue(path, out redirect))
{
// update the current path
path = redirect.Target;
absolute = redirect.Absolute;
// does authentication exist for the request path?
if (Authentication.TryGetValue(path, out auth))
{
// update the authentication
authentication = auth.Allow(request);
}
// have there been an excessive number of redirects?
if (++iteration == 20)
{
// yes, start maintaining a collection of redirected paths
ArrayRig <string> redirects = new ArrayRig <string>();
redirects.Add(path);
// while the current path is to be redirected
while (Redirects.TryGetValue(path, out redirect))
{
// update the current path
path = redirect.Target;
absolute = redirect.Absolute;
// has the redirect path already been hit?
if (redirects.Contains(path))
{
// yes, return false, a redirect loop was hit
Log.Warning("Redirect loop detected. Request denied.");
request.RequestPath = null;
return(false);
}
// add to the redirected collection
redirects.Add(path);
// does authentication exist for the request path?
if (Authentication.TryGetValue(path, out auth))
{
// update the authentication
authentication = auth.Allow(request);
}
}
break;
}
}
first = false;
}
else if (first)
{
path = string.Empty;
first = false;
}
}
// has a redirect occured?
if (!request.RequestPath.Equals(path))
{
// has the redirect method been assigned?
if (OnRedirect != null)
{
OnRedirect.ArgA = request;
OnRedirect.ArgB = path;
OnRedirect.Run();
}
// update the web request path
request.RequestPath = path;
}
// return the authentication value
return(authentication);
}
