]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_spanningtree/treesocket1.cpp
Use ServiceProvider for inter-module dependencies
[user/henk/code/inspircd.git] / src / modules / m_spanningtree / treesocket1.cpp
index 1f0288a66c65dcf348753ac79486918332f2dceb..abed5fc2560fbc90d4f089492e157fda05c7ffce 100644 (file)
@@ -2,8 +2,8 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
  *
  * This program is free but copyrighted software; see
  *            the file COPYING for details.
  */
 
 #include "inspircd.h"
-#include "commands/cmd_whois.h"
-#include "commands/cmd_stats.h"
 #include "socket.h"
 #include "xline.h"
-#include "transport.h"
-#include "m_hash.h"
+#include "../m_hash.h"
 #include "socketengine.h"
 
-#include "m_spanningtree/main.h"
-#include "m_spanningtree/utils.h"
-#include "m_spanningtree/treeserver.h"
-#include "m_spanningtree/link.h"
-#include "m_spanningtree/treesocket.h"
-#include "m_spanningtree/resolvers.h"
-#include "m_spanningtree/handshaketimer.h"
-
-/* $ModDep: m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h m_hash.h m_spanningtree/handshaketimer.h */
-
+#include "main.h"
+#include "../spanningtree.h"
+#include "utils.h"
+#include "treeserver.h"
+#include "link.h"
+#include "treesocket.h"
+#include "resolvers.h"
 
 /** Because most of the I/O gubbins are encapsulated within
  * BufferedSocket, we just call the superclass constructor for
  * most of the action, and append a few of our own values
  * to it.
  */
-TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string shost, int iport, bool listening, unsigned long maxtime, Module* HookMod)
-       : BufferedSocket(SI, shost, iport, listening, maxtime), Utils(Util), Hook(HookMod)
-{
-       myhost = host;
-       this->LinkState = LISTENER;
-       theirchallenge.clear();
-       ourchallenge.clear();
-       if (listening && Hook)
-               BufferedSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
-}
-
-TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string shost, int iport, bool listening, unsigned long maxtime, const std::string &ServerName, const std::string &bindto, Module* HookMod)
-       : BufferedSocket(SI, shost, iport, listening, maxtime, bindto), Utils(Util), Hook(HookMod)
+TreeSocket::TreeSocket(SpanningTreeUtilities* Util, const std::string& shost, int iport, unsigned long maxtime, const std::string &ServerName, const std::string &bindto, Autoconnect* myac, const std::string& hook)
+       : Utils(Util), IP(shost), myautoconnect(myac)
 {
+       age = ServerInstance->Time();
        myhost = ServerName;
-       theirchallenge.clear();
-       ourchallenge.clear();
-       this->LinkState = CONNECTING;
-       if (Hook)
-               BufferedSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
+       capab_phase = 0;
+       proto_version = 0;
+       LinkState = CONNECTING;
+       if (!hook.empty())
+       {
+               ServiceProvider* prov = ServerInstance->Modules->FindService(SERVICE_IOHOOK, hook);
+               if (!prov)
+               {
+                       SetError("Could not find hook '" + hook + "' for connection to " + ServerName);
+                       return;
+               }
+               AddIOHook(prov->creator);
+       }
+       DoConnect(shost, iport, maxtime, bindto);
+       Utils->timeoutlist[this] = std::pair<std::string, int>(ServerName, maxtime);
+       SendCapabilities(1);
 }
 
 /** When a listening socket gives us a new file descriptor,
  * we must associate it with a socket without creating a new
  * connection. This constructor is used for this purpose.
  */
-TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, int newfd, char* ip, Module* HookMod)
-       : BufferedSocket(SI, newfd, ip), Utils(Util), Hook(HookMod)
+TreeSocket::TreeSocket(SpanningTreeUtilities* Util, int newfd, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
+       : BufferedSocket(newfd), Utils(Util)
 {
-       this->LinkState = WAIT_AUTH_1;
-       theirchallenge.clear();
-       ourchallenge.clear();
-       sentcapab = false;
-       /* If we have a transport module hooked to the parent, hook the same module to this
-        * socket, and set a timer waiting for handshake before we send CAPAB etc.
-        */
-       if (Hook)
-               BufferedSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
-
-       Instance->Timers->AddTimer(new HandshakeTimer(Instance, this, &(Utils->LinkBlocks[0]), this->Utils, 1));
+       IP = client->addr();
+       age = ServerInstance->Time();
+       LinkState = WAIT_AUTH_1;
+       capab_phase = 0;
+       proto_version = 0;
+       myhost = "inbound from " + IP;
+
+       FOREACH_MOD(I_OnHookIO, OnHookIO(this, via));
+       if (GetIOHook())
+               GetIOHook()->OnStreamSocketAccept(this, client, server);
+       SendCapabilities(1);
+
+       Utils->timeoutlist[this] = std::pair<std::string, int>(myhost, 30);
 }
 
 ServerState TreeSocket::GetLinkState()
@@ -83,15 +80,26 @@ ServerState TreeSocket::GetLinkState()
        return this->LinkState;
 }
 
-Module* TreeSocket::GetHook()
+void TreeSocket::CleanNegotiationInfo()
 {
-       return this->Hook;
+       ModuleList.clear();
+       OptModuleList.clear();
+       CapKeys.clear();
+       ourchallenge.clear();
+       theirchallenge.clear();
+       OutboundPass.clear();
+}
+
+CullResult TreeSocket::cull()
+{
+       Utils->timeoutlist.erase(this);
+       if (myautoconnect)
+               Utils->Creator->ConnectServer(myautoconnect, false);
+       return this->BufferedSocket::cull();
 }
 
 TreeSocket::~TreeSocket()
 {
-       if (Hook)
-               BufferedSocketUnhookRequest(this, (Module*)Utils->Creator, Hook).Send();
 }
 
 /** When an outbound connection finishes connecting, we receive
@@ -100,32 +108,20 @@ TreeSocket::~TreeSocket()
  * to server docs on the inspircd.org site, the other side
  * will then send back its own server string.
  */
-bool TreeSocket::OnConnected()
+void TreeSocket::OnConnected()
 {
        if (this->LinkState == CONNECTING)
        {
                /* we do not need to change state here. */
-               for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
+               for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); ++i)
                {
+                       Link* x = *i;
                        if (x->Name == this->myhost)
                        {
-                               Utils->Creator->RemoteMessage(NULL,"Connection to \2%s\2[%s] started.", myhost.c_str(), (x->HiddenFromStats ? "<hidden>" : this->GetIP().c_str()));
-                               if (Hook)
-                               {
-                                       BufferedSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
-                                       Utils->Creator->RemoteMessage(NULL,"Connection to \2%s\2[%s] using transport \2%s\2", myhost.c_str(), (x->HiddenFromStats ? "<hidden>" : this->GetIP().c_str()),
-                                                       x->Hook.c_str());
-                               }
+                               ServerInstance->SNO->WriteGlobalSno('l', "Connection to \2%s\2[%s] started.", myhost.c_str(), (x->HiddenFromStats ? "<hidden>" : this->IP.c_str()));
                                this->OutboundPass = x->SendPass;
-                               sentcapab = false;
-
-                               /* found who we're supposed to be connecting to, send the neccessary gubbins. */
-                               if (this->GetHook())
-                                       Instance->Timers->AddTimer(new HandshakeTimer(Instance, this, &(*x), this->Utils, 1));
-                               else
-                                       this->SendCapabilities();
-
-                               return true;
+                               this->SendCapabilities(1);
+                               return;
                        }
                }
        }
@@ -134,59 +130,20 @@ bool TreeSocket::OnConnected()
         * If that happens the connection hangs here until it's closed. Unlikely
         * and rather harmless.
         */
-       this->Utils->Creator->RemoteMessage(NULL,"Connection to \2%s\2 lost link tag(!)", myhost.c_str());
-       return true;
+       ServerInstance->SNO->WriteGlobalSno('l', "Connection to \2%s\2 lost link tag(!)", myhost.c_str());
 }
 
 void TreeSocket::OnError(BufferedSocketError e)
 {
-       Link* MyLink;
-
-       if (this->LinkState == LISTENER)
-               return;
-
-       switch (e)
-       {
-               case I_ERR_CONNECT:
-                       Utils->Creator->RemoteMessage(NULL,"Connection failed: Connection to \002%s\002 refused", myhost.c_str());
-                       MyLink = Utils->FindLink(myhost);
-                       if (MyLink)
-                               Utils->DoFailOver(MyLink);
-               break;
-               case I_ERR_SOCKET:
-                       Utils->Creator->RemoteMessage(NULL,"Connection failed: Could not create socket (%s)", strerror(errno));
-               break;
-               case I_ERR_BIND:
-                       Utils->Creator->RemoteMessage(NULL,"Connection failed: Error binding socket to address or port (%s)", strerror(errno));
-               break;
-               case I_ERR_WRITE:
-                       Utils->Creator->RemoteMessage(NULL,"Connection failed: I/O error on connection (%s)", strerror(errno));
-               break;
-               case I_ERR_NOMOREFDS:
-                       Utils->Creator->RemoteMessage(NULL,"Connection failed: Operating system is out of file descriptors!");
-               break;
-               default:
-                       if ((errno) && (errno != EINPROGRESS) && (errno != EAGAIN))
-                               Utils->Creator->RemoteMessage(NULL,"Connection to \002%s\002 failed with OS error: %s", myhost.c_str(), strerror(errno));
-               break;
-       }
-}
-
-int TreeSocket::OnDisconnect()
-{
-       /* For the same reason as above, we don't
-        * handle OnDisconnect()
-        */
-       return true;
+       ServerInstance->SNO->WriteGlobalSno('l', "Connection to \002%s\002 failed with error: %s",
+               myhost.c_str(), getError().c_str());
+       ServerInstance->GlobalCulls.AddItem(this);
 }
 
 void TreeSocket::SendError(const std::string &errormessage)
 {
-       /* Display the error locally as well as sending it remotely */
-       Utils->Creator->RemoteMessage(NULL, "Sent \2ERROR\2 to %s: %s", (this->InboundServerName.empty() ? this->GetIP().c_str() : this->InboundServerName.c_str()), errormessage.c_str());
-       this->WriteLine("ERROR :"+errormessage);
-       /* One last attempt to make sure the error reaches its target */
-       this->FlushWriteBuffer();
+       WriteLine("ERROR :"+errormessage);
+       SetError(errormessage);
 }
 
 /** This function forces this server to quit, removing this server
@@ -197,6 +154,8 @@ void TreeSocket::SendError(const std::string &errormessage)
  */
 void TreeSocket::SquitServer(std::string &from, TreeServer* Current)
 {
+       ServerInstance->Logs->Log("m_spanningtree",DEBUG,"SquitServer for %s from %s",
+               Current->GetName().c_str(), from.c_str());
        /* recursively squit the servers attached to 'Current'.
         * We're going backwards so we don't remove users
         * while we still need them ;)
@@ -217,22 +176,24 @@ void TreeSocket::SquitServer(std::string &from, TreeServer* Current)
  */
 void TreeSocket::Squit(TreeServer* Current, const std::string &reason)
 {
+       bool LocalSquit = false;
+
        if ((Current) && (Current != Utils->TreeRoot))
        {
-               Event rmode((char*)Current->GetName().c_str(), (Module*)Utils->Creator, "lost_server");
-               rmode.Send(Instance);
+               DelServerEvent(Utils->Creator, Current->GetName());
 
-               std::deque<std::string> params;
+               parameterlist params;
                params.push_back(Current->GetName());
                params.push_back(":"+reason);
                Utils->DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
                if (Current->GetParent() == Utils->TreeRoot)
                {
-                       this->Instance->SNO->WriteToSnoMask('l',"Server \002"+Current->GetName()+"\002 split: "+reason);
+                       ServerInstance->SNO->WriteGlobalSno('l', "Server \002"+Current->GetName()+"\002 split: "+reason);
+                       LocalSquit = true;
                }
                else
                {
-                       this->Instance->SNO->WriteToSnoMask('l',"Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
+                       ServerInstance->SNO->WriteGlobalSno('L', "Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
                }
                num_lost_servers = 0;
                num_lost_users = 0;
@@ -240,53 +201,37 @@ void TreeSocket::Squit(TreeServer* Current, const std::string &reason)
                SquitServer(from, Current);
                Current->Tidy();
                Current->GetParent()->DelChild(Current);
+               Current->cull();
                delete Current;
-               this->Instance->SNO->WriteToSnoMask('l',"Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
+               if (LocalSquit)
+                       ServerInstance->SNO->WriteToSnoMask('l', "Netsplit complete, lost \002%d\002 user%s on \002%d\002 server%s.", num_lost_users, num_lost_users != 1 ? "s" : "", num_lost_servers, num_lost_servers != 1 ? "s" : "");
+               else
+                       ServerInstance->SNO->WriteToSnoMask('L', "Netsplit complete, lost \002%d\002 user%s on \002%d\002 server%s.", num_lost_users, num_lost_users != 1 ? "s" : "", num_lost_servers, num_lost_servers != 1 ? "s" : "");
        }
        else
-               Instance->Logs->Log("m_spanningtree",DEFAULT,"Squit from unknown server");
+               ServerInstance->Logs->Log("m_spanningtree",DEFAULT,"Squit from unknown server");
 }
 
 /** This function is called when we receive data from a remote
- * server. We buffer the data in a std::string (it doesnt stay
- * there for long), reading using BufferedSocket::Read() which can
- * read up to 16 kilobytes in one operation.
- *
- * IF THIS FUNCTION RETURNS FALSE, THE CORE CLOSES AND DELETES
- * THE SOCKET OBJECT FOR US.
+ * server.
  */
-bool TreeSocket::OnDataReady()
+void TreeSocket::OnDataReady()
 {
-       const char* data = this->Read();
-       /* Check that the data read is a valid pointer and it has some content */
-       if (data && *data)
+       Utils->Creator->loopCall = true;
+       /* While there is at least one new line in the buffer,
+        * do something useful (we hope!) with it.
+        */
+       while (recvq.find("\n") != std::string::npos)
        {
-               this->in_buffer.append(data);
-               /* While there is at least one new line in the buffer,
-                * do something useful (we hope!) with it.
+               std::string ret = recvq.substr(0,recvq.find("\n")-1);
+               recvq = recvq.substr(recvq.find("\n")+1,recvq.length()-recvq.find("\n"));
+               /* Use rfind here not find, as theres more
+                * chance of the \r being near the end of the
+                * string, not the start.
                 */
-               while (in_buffer.find("\n") != std::string::npos)
-               {
-                       std::string ret = in_buffer.substr(0,in_buffer.find("\n")-1);
-                       in_buffer = in_buffer.substr(in_buffer.find("\n")+1,in_buffer.length()-in_buffer.find("\n"));
-                       /* Use rfind here not find, as theres more
-                        * chance of the \r being near the end of the
-                        * string, not the start.
-                        */
-                       if (ret.find("\r") != std::string::npos)
-                               ret = in_buffer.substr(0,in_buffer.find("\r")-1);
-                       /* Process this one, abort if it
-                        * didnt return true.
-                        */
-                       if (!this->ProcessLine(ret))
-                       {
-                               return false;
-                       }
-               }
-               return true;
+               if (ret.find("\r") != std::string::npos)
+                       ret = recvq.substr(0,recvq.find("\r")-1);
+               ProcessLine(ret);
        }
-       /* EAGAIN returns an empty but non-NULL string, so this
-        * evaluates to TRUE for EAGAIN but to FALSE for EOF.
-        */
-       return (data && !*data);
+       Utils->Creator->loopCall = false;
 }