public static string MakeFullLink(string link, string CodeBase, string Application)
{
link = CanonizeURL(link, URL_CANONFLAGS.URL_WININET_COMPATIBILITY);
link = link.Replace('\\', '/');
int j1 = link.IndexOf(':');
if (j1 == -1 ||
!(j1 + 3 < link.Length &&
link[j1 + 1] == '/' &&
link[j1 + 2] == '/')) //no protocol, so it is relative.
//yes, UNC and DOS path are treated as relative
{
string AppBase = CodeBase;
if (CodeBase != null)
{
if (Application != null)
{
if (CodeBase[CodeBase.Length - 1] == '/')
{
AppBase += Application;
}
else
{
AppBase = AppBase + "/" + Application;
}
}
}
else
{
AppBase = Application;
}
if (link[0] != '/') //just relative path
{
if (AppBase != null && AppBase[0] != 0)
{
if (AppBase[AppBase.Length - 1] == '/')
{
link = AppBase + link;
}
else
{
link = AppBase + "/" + link;
}
Log(true, "Link is relative: replaced with " + link, "");
}
}
else // path is relative to root
{
if (AppBase != null && AppBase[0] != 0)
{
string sRoot = null;
int j = AppBase.IndexOf(':');
if (j != -1 &&
(j + 3 < AppBase.Length &&
AppBase[j + 1] == '/' &&
AppBase[j + 2] == '/')) //protocol present
{
int i = AppBase.IndexOf('/', j + 3);
if (i == -1)
{
sRoot = AppBase;
}
else
{
sRoot = AppBase.Substring(0, i);
}
}
else
{
//no protocol
// Log(this,true,"Code base doesnot have a protocol - "+AppBase,"");
// no need to throw: the path is relative anyway, so there's no hazard
j = AppBase.IndexOf('/');
if (j != -1)
{
sRoot = AppBase.Substring(0, j); //take root
}
}
if (sRoot != null)
{
link = sRoot + link;
Log(true, "Link is relative to the root: replaced with " + link, "");
}
}
}
}
else
{
// full path to cfg
// must be on the same site
if (!AreOnTheSameSite(link, CodeBase))
{
Log(true, "Security block: Config file is on another site " + CodeBase + ": " + link, "");
throw new ArgumentException("Config file is on another site " + CodeBase + ": " + link);
}
}
return(CanonizeURL(link, URL_CANONFLAGS.URL_WININET_COMPATIBILITY));
}