static RewriterConfiguration()
{
ExecuteExtension = ConfigurationManager.AppSettings["RewriteExtension"];
if (string.IsNullOrEmpty(ExecuteExtension))
{
ExecuteExtension = ".htm";
}
instance = (RewriterConfiguration)ConfigurationManager.GetSection("RewriterConfig");
}
void context_BeginRequest(object sender, EventArgs e)
{
HttpApplication app = (HttpApplication)sender;
if (IsUploadRequest(app.Context))
{
return;
}
#region Rewriter
RewriterConfiguration config = RewriterConfiguration.GetConfig();
if (config != null)
{
bool is404 = app.Request.Path.EndsWith(RewriterConfiguration.ExecuteExtension, StringComparison.OrdinalIgnoreCase);
RewriterRuleCollection rules = config.Rules;
for (int i = 0; i < rules.Count; i++)
{
string requestedPath = null, lookFor = null;
if (rules[i].IsCrossdomain)
{
//二级域名重写
requestedPath = app.Request.Url.AbsoluteUri;
lookFor = String.Concat("^", rules[i].LookFor, "$");
}
else
{
//一般重写
requestedPath = app.Request.Path;
lookFor = String.Concat("^", RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, rules[i].LookFor), "$");
}
Regex reg = new Regex(lookFor, RegexOptions.IgnoreCase | RegexOptions.Compiled);
if (reg.IsMatch(requestedPath))
{
is404 = false;
string sendToUrl = RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, reg.Replace(requestedPath, rules[i].SendTo));
#if DEBUG
app.Context.Trace.Write("ModuleRewriter", String.Concat("Rewriting URL to ", sendToUrl));
#endif
RewriterUtils.RewriteUrl(app.Context, sendToUrl);
break;
}
}
if (is404)
{
app.Response.StatusCode = 404;
app.Response.SuppressContent = true;
app.Response.End();
}
}
#endregion
}