/// <summary>
/// Handles the BeginRequest event of the context control.
/// </summary>
/// <param name="sender">
/// The source of the event.
/// </param>
/// <param name="e">
/// The <see cref="System.EventArgs"/> instance containing the event data.
/// </param>
private static void ContextBeginRequest(object sender, EventArgs e)
{
var context = ((HttpApplication)sender).Context;
var path = context.Request.Path.ToUpperInvariant();
var url = UrlRules.GetUrlWithQueryString(context).ToUpperInvariant();
path = path.Replace(".ASPX.CS", string.Empty);
url = url.Replace(".ASPX.CS", string.Empty);
// skip url rewrite for web api calls
if (url.ToLower().StartsWith($"{Utils.ApplicationRelativeWebRoot}api/"))
{
context.RewritePath(UrlRules.GetUrlWithQueryString(context));
return;
}
// to prevent XSS
url = HttpUtility.HtmlEncode(url);
Blog blogInstance = Blog.CurrentInstance;
// bundled scripts and styles are in the ~/scripts and ~/styles
// redirect path from ~/child/scripts/js to ~/scripts/js etc.
if (!blogInstance.IsPrimary)
{
if (url.Contains("/SCRIPTS/") || url.Contains("/STYLES/"))
{
var npath = url.Replace(Blog.CurrentInstance.RelativeWebRoot.ToUpper(), Utils.ApplicationRelativeWebRoot);
context.RewritePath(npath);
return;
}
}
if (Utils.IsCurrentRequestForHomepage)
{
// custom front page
if (!string.IsNullOrEmpty(BlogSettings.CustomFrontPage))
{
url = Utils.RelativeOrAbsoluteWebRoot + BlogSettings.CustomFrontPage;
context.RewritePath(url, false);
}
else
{
var front = Page.GetFrontPage();
if (front != null)
{
url = front.RelativeLink.ToUpperInvariant();
}
}
}
RedirectToRemoveFileExtension(context, blogInstance, url, path);
Rewrite(context, blogInstance, url, path);
}
/// <summary>
/// Handles the BeginRequest event of the context control.
/// </summary>
/// <param name="sender">
/// The source of the event.
/// </param>
/// <param name="e">
/// The <see cref="System.EventArgs"/> instance containing the event data.
/// </param>
private static void ContextBeginRequest(object sender, EventArgs e)
{
var context = ((HttpApplication)sender).Context;
var path = context.Request.Path.ToUpperInvariant();
var url = UrlRules.GetUrlWithQueryString(context).ToUpperInvariant();
path = path.Replace(".ASPX.CS", string.Empty);
url = url.Replace(".ASPX.CS", string.Empty);
// to prevent XSS
url = HttpUtility.HtmlEncode(url);
Blog blogInstance = Blog.CurrentInstance;
// bundled scripts and styles are in the ~/scripts and ~/styles
// redirect path from ~/child/scripts/js to ~/scripts/js etc.
if (!blogInstance.IsPrimary)
{
if (url.Contains("/SCRIPTS/") || url.Contains("/STYLES/"))
{
var npath = url.Replace(Blog.CurrentInstance.RelativeWebRoot.ToUpper(), "/");
context.RewritePath(npath);
return;
}
}
if (Utils.IsCurrentRequestForHomepage)
{
var front = Page.GetFrontPage();
if (front != null)
{
url = front.RelativeLink.ToUpperInvariant();
}
}
Rewrite(context, blogInstance, url, path);
}
private static void Rewrite(HttpContext context, Blog blogInstance, string url, string path)
{
var urlContainsFileExtension = BlogSettings.Instance.RemoveExtensionsFromUrls ? true :
url.IndexOf(BlogConfig.FileExtension, StringComparison.OrdinalIgnoreCase) != -1;
// Utils.Log(string.Format("Rewriting :: {0} :: {1}", url, path));
if (url.Contains("/FILES/") && url.Contains(".AXDX"))
{
UrlRules.RewriteFilePath(context, url);
}
if (url.Contains("/IMAGES/") && url.Contains(".JPGX"))
{
UrlRules.RewriteImagePath(context, url);
}
if (url.Contains("/POST/"))
{
UrlRules.RewritePost(context, url);
}
else if (urlContainsFileExtension && url.Contains("/CATEGORY/"))
{
UrlRules.RewriteCategory(context, url);
}
else if (urlContainsFileExtension && url.Contains("/TAG/"))
{
UrlRules.RewriteTag(context, url);
}
else if (urlContainsFileExtension && url.Contains("/PAGE/"))
{
UrlRules.RewritePage(context, url);
}
else if (urlContainsFileExtension && url.Contains("/CALENDAR/"))
{
if (url.Contains(".PNG") || url.Contains(".JPG") || url.Contains(".GIF"))
{
// do not rewrite path to images, for example
// leave alone /widgets/calendar/screenshot.png
return;
}
UrlRules.RewriteCalendar(context, url);
}
else if (urlContainsFileExtension && UrlRules.DefaultPageRequested(context))
{
UrlRules.RewriteDefault(context);
}
else if (urlContainsFileExtension && url.Contains("/AUTHOR/"))
{
UrlRules.RewriteAuthor(context, url);
}
else if (urlContainsFileExtension && (path.Contains("/BLOG.ASPX") || path.EndsWith("/BLOG")))
{
UrlRules.RewriteBlog(context, url);
}
else if (BlogSettings.Instance.RemoveExtensionsFromUrls && path.StartsWith(blogInstance.RelativeWebRoot + "contact", StringComparison.OrdinalIgnoreCase) && string.IsNullOrWhiteSpace(Path.GetExtension(path)))
{
UrlRules.RewriteContact(context, url);
}
else if (BlogSettings.Instance.RemoveExtensionsFromUrls && path.StartsWith(blogInstance.RelativeWebRoot + "archive", StringComparison.OrdinalIgnoreCase) && string.IsNullOrWhiteSpace(Path.GetExtension(path)))
{
UrlRules.RewriteArchive(context, url);
}
else if (BlogSettings.Instance.RemoveExtensionsFromUrls && path.StartsWith(blogInstance.RelativeWebRoot + "search", StringComparison.OrdinalIgnoreCase) && string.IsNullOrWhiteSpace(Path.GetExtension(path)))
{
UrlRules.RewriteSearch(context, url);
}
else
{
// Utils.Log(string.Format("Rewriting ELSE :: {0} :: {1}", url, path));
// If this is blog instance that is in a virtual sub-folder, we will
// need to rewrite the path for URL to a physical file. This includes
// requests such as the homepage (default.aspx), contact.aspx, archive.aspx,
// any of the admin pages, etc, etc.
if (blogInstance.IsSubfolderOfApplicationWebRoot &&
VirtualPathUtility.AppendTrailingSlash(path).IndexOf(blogInstance.RelativeWebRoot, StringComparison.OrdinalIgnoreCase) != -1)
{
bool skipRewrite = false;
string rewriteQs = string.Empty;
string rewriteUrl = UrlRules.GetUrlWithQueryString(context);
int qsStart = rewriteUrl.IndexOf("?");
if (qsStart != -1) // remove querystring.
{
rewriteQs = rewriteUrl.Substring(qsStart);
rewriteUrl = rewriteUrl.Substring(0, qsStart);
}
// Want to see if a specific page/file is being requested (something with a . (dot) in it).
// Because Utils.ApplicationRelativeWebRoot may contain a . (dot) in it, pathAfterAppWebRoot
// tells us if the actual path (after the AppWebRoot) contains a dot.
string pathAfterAppWebRoot = rewriteUrl.Substring(Utils.ApplicationRelativeWebRoot.Length);
if (!pathAfterAppWebRoot.Contains("."))
{
if (!rewriteUrl.EndsWith("/"))
{
rewriteUrl += "/";
}
rewriteUrl += "default.aspx";
}
else
{
if (Path.GetExtension(pathAfterAppWebRoot).ToUpperInvariant() == ".AXD")
{
skipRewrite = true;
}
}
if (!skipRewrite)
{
// remove the subfolder portion. so /subfolder/ becomes /.
rewriteUrl = new Regex(Regex.Escape(blogInstance.RelativeWebRoot), RegexOptions.IgnoreCase).Replace(rewriteUrl, Utils.ApplicationRelativeWebRoot);
context.RewritePath(rewriteUrl + rewriteQs, false);
}
return;
}
}
}