private void ProcessRequestInner(HttpContext context, HttpRequest request, HttpResponse response)
{
if (request.Path == "/null") {
return;
}
// If session
if (request.Path.Substr(0, 2) == "/(" && request.Path.Substr(24, 1) == ")") {
// Find sessionId
Xid sessionId;
try {
sessionId = new Xid(request.Path.Substr(2, 22));
} catch (FormatException) {
SendJsonFailure("Amos3.Session", "Session ID paramater malformed");
return;
}
// Find session
Session session;
if (!Session.TryGet(sessionId, out session)) {
SendJsonFailure("Amos3.Session.Expired", "Session has expired");
return;
}
// Determine if Trigger or RPC
if (request.Path.CountCharacter('/') == 1) {
// RPC
RpcHandler(session, request.InputStream, request, response);
} else {
// Trigger
TriggerHandler(session, request.Url.Segments[2], request, response);
}
return;
}
// Find client IP
var ip = context.Request.ServerVariables["REMOTE_ADDR"];
if (HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null) ip = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
// Handle crawlers
if (null != context.Request.QueryString["_escaped_fragment_"] && context.Request.QueryString["_escaped_fragment_"].Length > 1) {
// Mark IP as a crawler for the next 30 seconds
crawlers[ip] = DateTime.Now;
context.Response.Status = "301 Moved Permanently";
context.Response.AddHeader("Location", (RequireSecureHttp ? "https://" : "http://") + context.Request.ServerVariables["SERVER_NAME"] + context.Request.QueryString["_escaped_fragment_"]);
return;
}
if (crawlers.ContainsKey(ip) ||
context.Request.UserAgent.IndexOf("facebookexternalhit") != -1 ||
context.Request.UserAgent.IndexOf("Feedfetcher-Google") != -1 ||
context.Request.UserAgent.IndexOf("bingbot") != -1 ||
context.Request.UserAgent.IndexOf("Googlebot") != -1 ||
context.Request.UserAgent.IndexOf("Slurp") != -1 ||
context.Request.UserAgent.IndexOf("search.msn.com") != -1 ||
context.Request.UserAgent.IndexOf("nutch") != -1 ||
context.Request.UserAgent.IndexOf("simpy") != -1 ||
context.Request.UserAgent.IndexOf("bot") != -1 ||
context.Request.UserAgent.IndexOf("ASPSeek") != -1 ||
context.Request.UserAgent.IndexOf("crawler") != -1 ||
context.Request.UserAgent.IndexOf("msnbot") != -1 ||
context.Request.UserAgent.IndexOf("ASPSeek") != -1 ||
context.Request.UserAgent.IndexOf("Libwww-perl") != -1 ||
context.Request.UserAgent.IndexOf("FAST") != -1 ||
context.Request.UserAgent.IndexOf("Baidu") != -1 ||
context.Request.UserAgent.IndexOf("YandexBot") != -1
) {
// Add static content
StaticRender(context.Request.Url.AbsolutePath.Substring(1), context);
// Remove old Crawlers
var limit = DateTime.Now.AddSeconds(-30);
var remove = new List<string>();
foreach (var crawler in crawlers) {
if (crawler.Value < limit) remove.Add(crawler.Key);
}
foreach (var crawlerip in remove) {
crawlers.Remove(crawlerip);
}
return;
}
// If downloading document
if (request.Path.ToLower().StartsWith("/downloaddocument")) {
DocumentDownload.GetDocument(request);
return;
}
// If frame
if (request.Path == "/delegateframe") {
// Create a new session
var session = Session.Create(request, this, new EnvelopeHandlerMulti());
// Send frame
DelegateFrame.SendFrame(response, session);
return;
}
// If robots
if (request.Path.ToUpperInvariant() == "/ROBOTS.TXT") {
Robots(context);
return;
}
// Check we have WAR
if (null == HttpRootFile) {
response.Write("No WAR.");
return;
}
// If needed, upgrade the connection to HTTPS
if (RequireSecureHttp && !request.IsSecureConnection && string.Compare(request.Url.Host, "localhost", true) != 0) {
var url = request.Url.ToString();
url = "https" + url.Substr(url.IndexOf(":"));
response.Redirect(url);
return;
}
// Find target details
var path = request.Path == "/" ? "/index.html" : request.Path;
// Stop hacks
if (path.IndexOf("..") > -1 || path.IndexOf("//") > -1 || path.IndexOf("\\\\") > -1) {
response.SendFailure(HttpStatusCode.NotFound, "Denied.");
}
// Get content
byte[] page;
lock (WebCache) {
// Read cache
page = WebCache[path] as byte[];
// If cache miss..
if (null == page) {
// Open WAR file
if (null == HttpRoot) {
try {
HttpRoot = ZipFile.Read(HttpRootFile.FullName);
} catch (Exception ex) {
// Log the exception
LogException(ex, "Variant-HttpRoot", Ids.System);
// Warn users that we're updating
response.Write("We're currently updating our content. Hang tight - the site will be back shortly!");
return;
}
if (null == HttpRoot["/index.html"]) {
throw new Exception("Missing '/index.html' in WAR");
}
}
// Open file
ZipEntry file;
if (null == (file = HttpRoot[path])) {
// File not found - redirect to virtual space
response.CacheControl = "public";
response.Expires = 31536000;
response.ExpiresAbsolute = DateTime.Now.AddYears(1);
response.Cache.SetCacheability(HttpCacheability.Public);
response.RedirectPermanent("/#!" + path, true);
return;
}
// Extract
using (var stream = new MemoryStream()) {
file.Extract(stream);
page = stream.ReadAllToByteArray();
}
// Add to cache
WebCache[path] = page;
}
}
// Set cache headers
if (path.Contains(".nocache.")) {
response.CacheControl = "private";
response.Expires = 0;
response.ExpiresAbsolute = DateTime.Now;
response.Cache.SetCacheability(HttpCacheability.NoCache);
} else if (path.Contains(".cache.")) {
response.CacheControl = "public";
response.Expires = 365 * 24 * 60 * 60;
response.ExpiresAbsolute = DateTime.Now.AddDays(365);
response.Cache.SetCacheability(HttpCacheability.Public);
} else {
response.CacheControl = "private";
response.Expires = 1 * 24 * 60 * 60;
response.ExpiresAbsolute = DateTime.Now.AddDays(1);
response.Cache.SetCacheability(HttpCacheability.Private);
}
// Set content type
switch (Path.GetExtension(path).ToUpperInvariant()) {
case ".JS":
response.ContentType = "text/javascript";
break;
case ".JSON":
response.ContentType = "application/json";
break;
case ".CSS":
response.ContentType = "text/css";
break;
case ".JPG":
case ".JPEG":
response.ContentType = "image/jpeg";
break;
case ".PNG":
response.ContentType = "image/png";
break;
case ".GIF":
response.ContentType = "image/gif";
break;
}
// Set compression
response.Compress(request);
// Write
response.OutputStream.Write(page, 0, page.Length);
}
