]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/users.cpp
This conflicted a few hours ago apparantly (????)
[user/henk/code/inspircd.git] / src / users.cpp
index 70f90a0a9a63237c37cf2ae2d8226d2771fbe724..db23d5672219799857e99d67e84cdc1d7d6fff4c 100644 (file)
@@ -507,42 +507,68 @@ bool User::HasPermission(const std::string &command)
        return false;
 }
 
-/** NOTE: We cannot pass a const reference to this method.
- * The string is changed by the workings of the method,
- * so that if we pass const ref, we end up copying it to
- * something we can change anyway. Makes sense to just let
- * the compiler do that copy for us.
- */
-bool User::AddBuffer(std::string a)
+bool User::AddBuffer(const std::string &a)
 {
-       try
-       {
-               std::string::size_type i = a.rfind('\r');
+       std::string::size_type start = 0;
+       std::string::size_type i = a.find('\r');
 
+       /*
+        * The old implementation here took a copy, and rfind() on \r, removing as it found them, before
+        * copying a second time onto the recvq. That's ok, but involves three copies minimum (recv() to buffer,
+        * buffer to here, here to recvq) - The new method now copies twice (recv() to buffer, buffer to recvq).
+        *
+        * We use find() instead of rfind() for clarity, however unlike the old code, our scanning of the string is
+        * contiguous: as we specify a startpoint, we never see characters we have scanned previously, making this
+        * marginally faster in cases with a number of \r hidden early on in the buffer.
+        *
+        * How it works:
+        * Start at first pos of string, find first \r, append everything in the chunk (excluding \r) to recvq. Set
+        * i ahead of the \r, search for next \r, add next chunk to buffer... repeat.
+        *              -- w00t (7 may, 2008)
+        */
+       if (i == std::string::npos)
+       {
+               // no \r that we need to dance around, just add to buffer
+               recvq.append(a);
+       }
+       else
+       {
+               // While we can find the end of a chunk to add
                while (i != std::string::npos)
                {
-                       a.erase(i, 1);
-                       i = a.rfind('\r');
-               }
+                       // Append the chunk that we have
+                       recvq.append(a, start, (i - start));
 
-               if (a.length())
-                       recvq.append(a);
+                       // Start looking for the next one
+                       start = i + 1;
+                       i = a.find('\r', start);
+               }
 
-               if (this->MyClass && (recvq.length() > this->MyClass->GetRecvqMax()))
+               if (start != a.length())
                {
-                       this->SetWriteError("RecvQ exceeded");
-                       ServerInstance->SNO->WriteToSnoMask('A', "User %s RecvQ of %lu exceeds connect class maximum of %lu",this->nick,(unsigned long int)recvq.length(),this->MyClass->GetRecvqMax());
-                       return false;
+                       /*
+                        * This is here to catch a corner case when we get something like:
+                        * NICK w0
+                        * 0t\r\nU
+                        * SER ...
+                        * in successive calls to us.
+                        *
+                        * Without this conditional, the 'U' on the second case will be dropped,
+                        * which is most *certainly* not the behaviour we want!
+                        *              -- w00t
+                        */
+                       recvq.append(a, start, (a.length() - start));
                }
-
-               return true;
        }
 
-       catch (...)
+       if (this->MyClass && (recvq.length() > this->MyClass->GetRecvqMax()))
        {
-               ServerInstance->Logs->Log("USERS", DEBUG,"Exception in User::AddBuffer()");
+               this->SetWriteError("RecvQ exceeded");
+               ServerInstance->SNO->WriteToSnoMask('A', "User %s RecvQ of %lu exceeds connect class maximum of %lu",this->nick,(unsigned long int)recvq.length(),this->MyClass->GetRecvqMax());
                return false;
        }
+
+       return true;
 }
 
 bool User::BufferIsReady()
@@ -789,8 +815,11 @@ void User::UnOper()
                        }
                }
 
-               const char* parameters[] = { this->nick, moderemove.c_str() };
-               ServerInstance->Parser->CallHandler("MODE", parameters, 2, this);
+               std::vector<std::string> parameters;
+               parameters.push_back(this->nick);
+               parameters.push_back(moderemove);
+
+               ServerInstance->Parser->CallHandler("MODE", parameters, this);
 
                /* unset their oper type (what IS_OPER checks), and remove +o */
                *this->oper = 0;
@@ -921,9 +950,9 @@ void User::FullConnect()
 
        /* Trigger LUSERS output, give modules a chance too */
        int MOD_RESULT = 0;
-       FOREACH_RESULT(I_OnPreCommand, OnPreCommand("LUSERS", NULL, 0, this, true, "LUSERS"));
+       FOREACH_RESULT(I_OnPreCommand, OnPreCommand("LUSERS", std::vector<std::string>(), this, true, "LUSERS"));
        if (!MOD_RESULT)
-               ServerInstance->CallCommandHandler("LUSERS", NULL, 0, this);
+               ServerInstance->CallCommandHandler("LUSERS", std::vector<std::string>(), this);
 
        /*
         * We don't set REG_ALL until triggering OnUserConnect, so some module events don't spew out stuff
@@ -993,8 +1022,10 @@ bool User::ForceNickChange(const char* newnick)
        Command* nickhandler = ServerInstance->Parser->GetHandler("NICK");
        if (nickhandler) // wtfbbq, when would this not be here
        {
+               std::vector<std::string> parameters;
                nickhandler->HandleInternal(1, dummy);
-               bool result = (ServerInstance->Parser->CallHandler("NICK", &newnick, 1, this) == CMD_SUCCESS);
+               parameters.push_back(newnick);
+               bool result = (ServerInstance->Parser->CallHandler("NICK", parameters, this) == CMD_SUCCESS);
                nickhandler->HandleInternal(0, dummy);
                return result;
        }
@@ -1664,14 +1695,20 @@ ConnectClass* User::SetClass(const std::string &explicit_name)
        if (!IS_LOCAL(this))
                return NULL;
 
+       ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Setting connect class for UID %s", this->uuid);
+
        if (!explicit_name.empty())
        {
                for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
                {
                        ConnectClass* c = *i;
 
-                       if (explicit_name == c->GetName() && !c->GetDisabled())
+                       if (c->GetDisabled())
+                               continue; // can't possibly match, removed from conf
+
+                       if (explicit_name == c->GetName())
                        {
+                               ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Explicitly set to %s", explicit_name.c_str());
                                found = c;
                        }
                }
@@ -1682,37 +1719,64 @@ ConnectClass* User::SetClass(const std::string &explicit_name)
                {
                        ConnectClass* c = *i;
 
-                       if (((match(this->GetIPString(),c->GetHost().c_str(),true)) || (match(this->host,c->GetHost().c_str()))))
+                       if (c->GetType() == CC_ALLOW)
                        {
-                               if (c->GetPort())
-                               {
-                                       if (this->GetPort() == c->GetPort() && !c->GetDisabled())
-                                       {
-                                               found = c;
-                                       }
-                                       else
-                                               continue;
-                               }
-                               else
+                               ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "ALLOW %s %d %s", c->GetHost().c_str(), c->GetPort(), c->GetName().c_str());
+                       }
+                       else
+                       {
+                               ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "DENY %s %d %s", c->GetHost().c_str(), c->GetPort(), c->GetName().c_str());
+                       }
+
+                       /* if it's disabled, we can't match this one. */
+                       if (c->GetDisabled())
+                       {
+                               ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Class disabled");
+                               continue;
+                       }
+
+                       /* check if host matches.. */
+                       if (((!match(this->GetIPString(),c->GetHost(),true)) && (!match(this->host,c->GetHost()))))
+                       {
+                               ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "No host match (for %s)", c->GetHost().c_str());
+                               continue;
+                       }
+
+                       /*
+                        * deny change if change will take class over the limit check it HERE, not after we found a matching class,
+                        * because we should attempt to find another class if this one doesn't match us. -- w00t
+                        */
+                       if (c->limit && (c->RefCount + 1 >= c->limit))
+                       {
+                               ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", c->limit);
+                               continue;
+                       }
+
+                       /* if it requires a port ... */
+                       if (c->GetPort())
+                       {
+                               ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Requires port (%d)", c->GetPort());
+
+                               /* and our port doesn't match, fail. */
+                               if (this->GetPort() != c->GetPort())
                                {
-                                       if (!c->GetDisabled())
-                                               found = c;
+                                       ServerInstance->Logs->Log("CONNECTCLASS", DEBUG, "Port match failed (%d)", this->GetPort());
+                                       continue;
                                }
                        }
+
+                       /* we stop at the first class that meets ALL critera. */
+                       found = c;
+                       break;
                }
        }
 
-       /* ensure we don't fuck things up refcount wise, only remove them from a class if we find a new one :P */
+       /*
+        * Okay, assuming we found a class that matches.. switch us into that class, keeping refcounts up to date.
+        */
        if (found)
        {
-               /* deny change if change will take class over the limit */
-               if (found->limit && (found->RefCount + 1 >= found->limit))
-               {
-                       ServerInstance->Logs->Log("USERS", DEBUG, "OOPS: Connect class limit (%lu) hit, denying", found->limit);
-                       return this->MyClass;
-               }
-
-               /* should always be valid, but just in case .. */
+               /* only fiddle with refcounts if they are already in a class .. */
                if (this->MyClass)
                {
                        if (found == this->MyClass) // no point changing this shit :P