From 383caa90d568d8d997a9624a9e6174ddc1a9a3da Mon Sep 17 00:00:00 2001
From: brain <brain@e03df62e-2008-0410-955e-edbf42e46eb7>
Date: Fri, 15 Sep 2006 18:36:38 +0000
Subject: [PATCH] Add timeouts to the http module. Two seperate timeouts, 60
 seconds to receive headers, and 60 seconds after receipt of headers and
 sending of page, in which to time out the connection if the client doesnt
 close() as it should

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@5260 e03df62e-2008-0410-955e-edbf42e46eb7
---
 include/timer.h         |  4 ++++
 src/modules/m_httpd.cpp | 40 ++++++++++++++++++++++++++++++++++++++++
 src/timer.cpp           | 22 ++++++++++++++++++++++
 3 files changed, 66 insertions(+)

diff --git a/include/timer.h b/include/timer.h
index ef9427abf..1f6da4521 100644
--- a/include/timer.h
+++ b/include/timer.h
@@ -84,6 +84,10 @@ class TimerManager : public Extensible
 	 * @param T an InspTimer derived class to add
 	 */
 	void AddTimer(InspTimer* T);
+	/** Delete and InspTImer
+	 * @param T an InspTimer derived class to delete
+	 */
+	void DelTimer(InspTimer* T);
 	/** Tick any timers that have been missed due to lag
 	 * @param TIME the current system time
 	 */
diff --git a/src/modules/m_httpd.cpp b/src/modules/m_httpd.cpp
index 96fdfc8f2..ba8990afb 100644
--- a/src/modules/m_httpd.cpp
+++ b/src/modules/m_httpd.cpp
@@ -41,6 +41,18 @@ enum HttpState
 	HTTP_SERVE_SEND_DATA = 3
 };
 
+class HttpSocket;
+
+class HTTPTimeout : public InspTimer
+{
+ private:
+	HttpSocket* s;
+	SocketEngine* SE;
+ public:
+	HTTPTimeout(HttpSocket* sock, SocketEngine* engine);
+	void Tick(time_t TIME);
+};
+
 /** A socket used for HTTP transport
  */
 class HttpSocket : public InspSocket
@@ -54,6 +66,7 @@ class HttpSocket : public InspSocket
 	std::string http_version;
 	unsigned int postsize;
 	unsigned int amount;
+	HTTPTimeout* Timeout;
 
  public:
 
@@ -61,11 +74,21 @@ class HttpSocket : public InspSocket
 	{
 		SI->Log(DEBUG,"HttpSocket constructor");
 		InternalState = HTTP_LISTEN;
+		Timeout = NULL;
 	}
 
 	HttpSocket(InspIRCd* SI, int newfd, char* ip, FileReader* ind) : InspSocket(SI, newfd, ip), index(ind), postsize(0)
 	{
 		InternalState = HTTP_SERVE_WAIT_REQUEST;
+		Timeout = new HTTPTimeout(this, Instance->SE);
+		Instance->Timers->AddTimer(Timeout);
+	}
+
+	~HttpSocket()
+	{
+		if (Timeout)
+			Instance->Timers->DelTimer(Timeout);
+		Timeout = NULL;
 	}
 
 	virtual int OnIncomingConnection(int newsock, char* ip)
@@ -228,6 +251,8 @@ class HttpSocket : public InspSocket
 					{
 						InternalState = HTTP_SERVE_SEND_DATA;
 						SendHeaders(0, 400, "");
+						Timeout = new HTTPTimeout(this, Instance->SE);
+						Instance->Timers->AddTimer(Timeout);
 					}
 					else
 					{
@@ -266,6 +291,9 @@ class HttpSocket : public InspSocket
 	{
 		/* Headers are complete */
 		InternalState = HTTP_SERVE_SEND_DATA;
+
+		Instance->Timers->DelTimer(Timeout);
+		Timeout = NULL;
 	
 		if ((http_version != "HTTP/1.1") && (http_version != "HTTP/1.0"))
 		{
@@ -291,6 +319,8 @@ class HttpSocket : public InspSocket
 				}
 			}
 		}
+		Timeout = new HTTPTimeout(this, Instance->SE);
+		Instance->Timers->AddTimer(Timeout);
 	}
 
 	void Page(std::stringstream* n, int response, std::string& extraheaders)
@@ -301,6 +331,16 @@ class HttpSocket : public InspSocket
 	}
 };
 
+HTTPTimeout::HTTPTimeout(HttpSocket* sock, SocketEngine* engine) : InspTimer(60, time(NULL)), s(sock), SE(engine)
+{
+}
+
+void HTTPTimeout::Tick(time_t TIME)
+{
+	SE->DelFd(s);
+	s->Close();
+}
+
 class ModuleHttp : public Module
 {
 	int port;
diff --git a/src/timer.cpp b/src/timer.cpp
index 9157c1521..bc08ae1d0 100644
--- a/src/timer.cpp
+++ b/src/timer.cpp
@@ -39,6 +39,28 @@ void TimerManager::TickTimers(time_t TIME)
 	}
 }
 
+void TimerManager::DelTimer(InspTimer* T)
+{
+	timerlist::iterator found = Timers.find(T->GetTimer());
+
+	if (found != Timers.end())
+	{
+		timergroup* x = found->second;
+		for (timergroup::iterator y = x->begin(); y != x->end(); y++)
+		{
+			InspTimer* n = *y;
+			if (n == T)
+			{
+				DELETE(n);
+				x->erase(y);
+				if (!x->size())
+					Timers.erase(found);
+				return;
+			}
+		}
+	}
+}
+
 /*
  * Because some muppets may do odd things, and their ircd may lock up due
  * to crappy 3rd party modules, or they may change their system time a bit,
-- 
2.39.5