void ParseParameterData()
{
string redirectUrl;
string pathInfo = GetParameter("PATH_INFO");
string pathTranslated = GetParameter("PATH_TRANSLATED");
VPathToHost vapp;
if (String.IsNullOrEmpty(pathTranslated) ||
String.IsNullOrEmpty(pathInfo) || pathInfo [0] != '/' ||
(null != (redirectUrl = GetParameter("REDIRECT_URL")) && redirectUrl.Length != 0 && pathInfo != redirectUrl))
{
// Only consider REDIRECT_URL if it actually contains
// something, since it may not always be present (depending
// on installed Apache modules & setup). Also, never allow
// PATH_INFO to be null (nor PATH_TRANSLATED), even for
// cases where this method is mostly short-circuited.
if (pathInfo == null)
{
SetParameter("PATH_INFO", String.Empty);
}
if (pathTranslated == null)
{
SetParameter("PATH_TRANSLATED", String.Empty);
}
vapp = WebServer.FastCgi.Server.GetApplicationForPath(HostName, PortNumber, Path, PhysicalPath);
if (vapp == null)
{
Logger.Write(LogLevel.Debug, "Couldn't find vapp.");
}
else
{
ApplicationHost = vapp.AppHost as ApplicationHost;
}
return;
}
// At this point we have: (with REDIRECT_URL being optional)
//
// REDIRECT_URL=/dir/test.aspx/foo
// PATH_INFO=/dir/test.aspx/foo
// PATH_TRANSLATED=/srv/www/htdocs/dir/test.aspx/foo
// SCRIPT_NAME=/cgi-bin/fastcgi-mono-server
// SCRIPT_FILENAME=/srv/www/cgi-bin/fastcgi-mono-server
string virtPath = pathInfo;
string physPath = pathTranslated;
string virtPathInfo = String.Empty;
string physPathInfo = String.Empty;
try {
vapp = WebServer.FastCgi.Server.GetApplicationForPath(
HostName, PortNumber, virtPath, physPath);
if (vapp == null)
{
return; // Set values in finally
}
ApplicationHost = vapp.AppHost as ApplicationHost;
if (ApplicationHost == null)
{
return; // Set values in finally
}
// Split the virtual path and virtual path-info
string verb = GetParameter("REQUEST_METHOD");
if (String.IsNullOrEmpty(verb))
{
verb = "GET"; // For the sake of paths, assume a default
}
ApplicationHost.GetPathsFromUri(verb, pathInfo, out virtPath, out virtPathInfo);
if (virtPathInfo == null)
{
virtPathInfo = String.Empty;
}
if (virtPath == null)
{
virtPath = String.Empty;
}
// Re-map the physical path
physPath = ApplicationHost.MapPath(virtPath) ?? String.Empty;
// Re-map the physical path-info
string relaPathInfo = virtPathInfo;
if (relaPathInfo.Length != 0 && IOPath.DirectorySeparatorChar != '/')
{
relaPathInfo = relaPathInfo.Replace('/', IOPath.DirectorySeparatorChar);
}
while (relaPathInfo.Length > 0 && relaPathInfo[0] == IOPath.DirectorySeparatorChar)
{
relaPathInfo = relaPathInfo.Substring(1);
}
if (physPath.Length == 0)
{
physPathInfo = relaPathInfo;
return; // Set values in finally
}
string physRoot = physPath;
try {
if (ApplicationHost.VirtualFileExists(virtPath))
{
physRoot = IOPath.GetDirectoryName(physRoot) ?? String.Empty;
}
} catch {
// Assume virtPath, physPath & physRoot
// specify directories (and not files)
}
physPathInfo = IOPath.Combine(physRoot, relaPathInfo);
} finally {
// Now, if all went well, we set:
//
// SCRIPT_NAME=/dir/test.aspx
// SCRIPT_FILENAME=/srv/www/htdocs/dir/test.aspx
// PATH_INFO=/foo
// PATH_TRANSLATED=/srv/www/htdocs/dir/foo
SetParameter("SCRIPT_NAME", virtPath);
SetParameter("SCRIPT_FILENAME", physPath);
SetParameter("PATH_INFO", virtPathInfo);
SetParameter("PATH_TRANSLATED", physPathInfo);
}
}
