]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/extra/m_ssl_gnutls.cpp
Change the SQLutils and SQL providers to also use interfaces for proper unload order...
[user/henk/code/inspircd.git] / src / modules / extra / m_ssl_gnutls.cpp
index a5cdaf3e061fbf76158fbb2af74dccf1f002fd56..1e6208b660e96ab38977a8d624c5ec9bcf761071 100644 (file)
@@ -1,23 +1,39 @@
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
+ * This program is free but copyrighted software; see
+ *            the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
 #include <string>
 #include <vector>
 
 #include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
 
 #include "inspircd_config.h"
 #include "configreader.h"
 #include "users.h"
 #include "channels.h"
 #include "modules.h"
-#include "helperfuncs.h"
+
 #include "socket.h"
 #include "hashcomp.h"
 #include "inspircd.h"
 
+#include "transport.h"
+
 /* $ModDesc: Provides SSL support for clients */
 /* $CompileFlags: `libgnutls-config --cflags` */
-/* $LinkerFlags: `libgnutls-config --libs` `perl ../gnutls_rpath.pl` */
+/* $LinkerFlags: `perl extra/gnutls_rpath.pl` */
+/* $ModDep: transport.h */
 
-extern InspIRCd* ServerInstance;
 
 enum issl_status { ISSL_NONE, ISSL_HANDSHAKING_READ, ISSL_HANDSHAKING_WRITE, ISSL_HANDSHAKEN, ISSL_CLOSING, ISSL_CLOSED };
 
@@ -30,6 +46,8 @@ bool isin(int port, const std::vector<int> &portlist)
        return false;
 }
 
+/** Represents an SSL user's extra data
+ */
 class issl_session : public classbase
 {
 public:
@@ -43,7 +61,7 @@ public:
 
 class ModuleSSLGnuTLS : public Module
 {
-       Server* Srv;
+       
        ConfigReader* Conf;
 
        char* dummy;
@@ -66,12 +84,14 @@ class ModuleSSLGnuTLS : public Module
        
  public:
        
-       ModuleSSLGnuTLS(Server* Me)
+       ModuleSSLGnuTLS(InspIRCd* Me)
                : Module::Module(Me)
        {
-               Srv = Me;
+               
 
                culllist = new CullList(ServerInstance);
+
+               ServerInstance->PublishInterface("InspSocketHook", this);
                
                // Not rehashable...because I cba to reduce all the sizes of existing buffers.
                inbufsize = ServerInstance->Config->NetBufferSize;
@@ -79,11 +99,11 @@ class ModuleSSLGnuTLS : public Module
                gnutls_global_init(); // This must be called once in the program
 
                if(gnutls_certificate_allocate_credentials(&x509_cred) != 0)
-                       log(DEFAULT, "m_ssl_gnutls.so: Failed to allocate certificate credentials");
+                       ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to allocate certificate credentials");
 
                // Guessing return meaning
                if(gnutls_dh_params_init(&dh_params) < 0)
-                       log(DEFAULT, "m_ssl_gnutls.so: Failed to initialise DH parameters");
+                       ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to initialise DH parameters");
 
                // Needs the flag as it ignores a plain /rehash
                OnRehash("ssl");
@@ -97,7 +117,7 @@ class ModuleSSLGnuTLS : public Module
                if(param != "ssl")
                        return;
        
-               Conf = new ConfigReader;
+               Conf = new ConfigReader(ServerInstance);
                
                for(unsigned int i = 0; i < listenports.size(); i++)
                {
@@ -112,17 +132,20 @@ class ModuleSSLGnuTLS : public Module
                        if(((Conf->ReadValue("bind", "type", i) == "") || (Conf->ReadValue("bind", "type", i) == "clients")) && (Conf->ReadValue("bind", "ssl", i) == "gnutls"))
                        {
                                // Get the port we're meant to be listening on with SSL
-                               unsigned int port = Conf->ReadInteger("bind", "port", i, true);
-                               if (ServerInstance->Config->AddIOHook(port, this))
+                               std::string port = Conf->ReadValue("bind", "port", i);
+                               irc::portparser portrange(port, false);
+                               long portno = -1;
+                               while ((portno = portrange.GetToken()))
                                {
-                                       // We keep a record of which ports we're listening on with SSL
-                                       listenports.push_back(port);
-                               
-                                       log(DEFAULT, "m_ssl_gnutls.so: Enabling SSL for port %d", port);
-                               }
-                               else
-                               {
-                                       log(DEFAULT, "m_ssl_gnutls.so: FAILED to enable SSL on port %d, maybe you have another ssl or similar module loaded?", port);
+                                       if (ServerInstance->Config->AddIOHook(portno, this))
+                                       {
+                                               listenports.push_back(portno);
+                                               ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Enabling SSL for port %d", portno);
+                                       }
+                                       else
+                                       {
+                                               ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: FAILED to enable SSL on port %d, maybe you have another ssl or similar module loaded?", portno);
+                                       }
                                }
                        }
                }
@@ -167,14 +190,14 @@ class ModuleSSLGnuTLS : public Module
                        keyfile = confdir + keyfile;
                
                if(gnutls_certificate_set_x509_trust_file(x509_cred, cafile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
-                       log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 trust file: %s", cafile.c_str());
+                       ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 trust file: %s", cafile.c_str());
                        
                if(gnutls_certificate_set_x509_crl_file (x509_cred, crlfile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
-                       log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 CRL file: %s", crlfile.c_str());
+                       ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 CRL file: %s", crlfile.c_str());
                
                // Guessing on the return value of this, manual doesn't say :|
                if(gnutls_certificate_set_x509_key_file (x509_cred, certfile.c_str(), keyfile.c_str(), GNUTLS_X509_FMT_PEM) < 0)
-                       log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 certificate and key files: %s and %s", certfile.c_str(), keyfile.c_str());   
+                       ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 certificate and key files: %s and %s", certfile.c_str(), keyfile.c_str());   
                        
                // This may be on a large (once a day or week) timer eventually.
                GenerateDHParams();
@@ -190,7 +213,7 @@ class ModuleSSLGnuTLS : public Module
                // security requirements.
                
                if(gnutls_dh_params_generate2(dh_params, dh_bits) < 0)
-                       log(DEFAULT, "m_ssl_gnutls.so: Failed to generate DH parameters (%d bits)", dh_bits);
+                       ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to generate DH parameters (%d bits)", dh_bits);
        }
        
        virtual ~ModuleSSLGnuTLS()
@@ -211,9 +234,16 @@ class ModuleSSLGnuTLS : public Module
                        {
                                // User is using SSL, they're a local user, and they're using one of *our* SSL ports.
                                // Potentially there could be multiple SSL modules loaded at once on different ports.
-                               log(DEBUG, "m_ssl_gnutls.so: Adding user %s to cull list", user->nick);
+                               ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: Adding user %s to cull list", user->nick);
                                culllist->AddItem(user, "SSL module unloading");
                        }
+                       if (user->GetExt("ssl_cert", dummy) && isin(user->GetPort(), listenports))
+                       {
+                               ssl_cert* tofree;
+                               user->GetExt("ssl_cert", tofree);
+                               delete tofree;
+                               user->Shrink("ssl_cert");
+                       }
                }
        }
        
@@ -223,7 +253,7 @@ class ModuleSSLGnuTLS : public Module
                {
                        // We're being unloaded, kill all the users added to the cull list in OnCleanup
                        int numusers = culllist->Apply();
-                       log(DEBUG, "m_ssl_gnutls.so: Killed %d users for unload of GnuTLS SSL module", numusers);
+                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: Killed %d users for unload of GnuTLS SSL module", numusers);
                        
                        for(unsigned int i = 0; i < listenports.size(); i++)
                                ServerInstance->Config->DelIOHook(listenports[i]);
@@ -232,15 +262,57 @@ class ModuleSSLGnuTLS : public Module
        
        virtual Version GetVersion()
        {
-               return Version(1, 0, 0, 0, VF_VENDOR);
+               return Version(1, 1, 0, 0, VF_VENDOR, API_VERSION);
        }
 
        void Implements(char* List)
        {
-               List[I_OnRawSocketAccept] = List[I_OnRawSocketClose] = List[I_OnRawSocketRead] = List[I_OnRawSocketWrite] = List[I_OnCleanup] = 1;
-               List[I_OnSyncUserMetaData] = List[I_OnDecodeMetaData] = List[I_OnUnloadModule] = List[I_OnRehash] = List[I_OnWhois] = List[I_OnGlobalConnect] = 1;
+               List[I_OnRawSocketConnect] = List[I_OnRawSocketAccept] = List[I_OnRawSocketClose] = List[I_OnRawSocketRead] = List[I_OnRawSocketWrite] = List[I_OnCleanup] = 1;
+               List[I_OnRequest] = List[I_OnSyncUserMetaData] = List[I_OnDecodeMetaData] = List[I_OnUnloadModule] = List[I_OnRehash] = List[I_OnWhois] = List[I_OnPostConnect] = 1;
+       }
+
+        virtual char* OnRequest(Request* request)
+       {
+               ISHRequest* ISR = (ISHRequest*)request;
+               if (strcmp("IS_NAME", request->GetId()) == 0)
+               {
+                       return "gnutls";
+               }
+               else if (strcmp("IS_HOOK", request->GetId()) == 0)
+               {
+                       char* ret = "OK";
+                       try
+                       {
+                               ret = ServerInstance->Config->AddIOHook((Module*)this, (InspSocket*)ISR->Sock) ? (char*)"OK" : NULL;
+                       }
+                       catch (ModuleException &e)
+                       {
+                               return NULL;
+                       }
+                       return ret;
+               }
+               else if (strcmp("IS_UNHOOK", request->GetId()) == 0)
+               {
+                       return ServerInstance->Config->DelIOHook((InspSocket*)ISR->Sock) ? (char*)"OK" : NULL;
+               }
+               else if (strcmp("IS_HSDONE", request->GetId()) == 0)
+               {
+                       issl_session* session = &sessions[ISR->Sock->GetFd()];
+                       return (session->status == ISSL_HANDSHAKING_READ || session->status == ISSL_HANDSHAKING_WRITE) ? NULL : (char*)"OK";
+               }
+               else if (strcmp("IS_ATTACH", request->GetId()) == 0)
+               {
+                       issl_session* session = &sessions[ISR->Sock->GetFd()];
+                       if (session)
+                       {
+                               VerifyCertificate(session, (InspSocket*)ISR->Sock);
+                               return "OK";
+                       }
+               }
+               return NULL;
        }
 
+
        virtual void OnRawSocketAccept(int fd, const std::string &ip, int localport)
        {
                issl_session* session = &sessions[fd];
@@ -265,80 +337,107 @@ class ModuleSSLGnuTLS : public Module
                 */
                
                gnutls_transport_set_ptr(session->sess, (gnutls_transport_ptr_t) fd); // Give gnutls the fd for the socket.
-               
+
+               Handshake(session);
+       }
+
+       virtual void OnRawSocketConnect(int fd)
+       {
+               issl_session* session = &sessions[fd];
+
+               session->fd = fd;
+               session->inbuf = new char[inbufsize];
+               session->inbufoffset = 0;
+
+               gnutls_init(&session->sess, GNUTLS_SERVER);
+
+               gnutls_set_default_priority(session->sess); // Avoid calling all the priority functions, defaults are adequate.
+               gnutls_credentials_set(session->sess, GNUTLS_CRD_CERTIFICATE, x509_cred);
+               gnutls_dh_set_prime_bits(session->sess, dh_bits);
+
+               gnutls_transport_set_ptr(session->sess, (gnutls_transport_ptr_t) fd); // Give gnutls the fd for the socket.
+
                Handshake(session);
        }
 
        virtual void OnRawSocketClose(int fd)
        {
-               log(DEBUG, "OnRawSocketClose: %d", fd);
+               ServerInstance->Log(DEBUG, "OnRawSocketClose: %d", fd);
                CloseSession(&sessions[fd]);
+
+               EventHandler* user = ServerInstance->SE->GetRef(fd);
+
+               if ((user) && (user->GetExt("ssl_cert", dummy)))
+               {
+                       ssl_cert* tofree;
+                       user->GetExt("ssl_cert", tofree);
+                       delete tofree;
+                       user->Shrink("ssl_cert");
+               }
        }
        
        virtual int OnRawSocketRead(int fd, char* buffer, unsigned int count, int &readresult)
        {
                issl_session* session = &sessions[fd];
                
-               if(!session->sess)
+               if (!session->sess)
                {
-                       log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: No session to read from");
+                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: No session to read from");
                        readresult = 0;
                        CloseSession(session);
                        return 1;
                }
-               
-               log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead(%d, buffer, %u, %d)", fd, count, readresult);
-               
-               if(session->status == ISSL_HANDSHAKING_READ)
+
+               if (session->status == ISSL_HANDSHAKING_READ)
                {
                        // The handshake isn't finished, try to finish it.
                        
                        if(Handshake(session))
                        {
                                // Handshake successfully resumed.
-                               log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: successfully resumed handshake");
+                               ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: successfully resumed handshake");
                        }
                        else
                        {
                                // Couldn't resume handshake.   
-                               log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: failed to resume handshake");
+                               ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: failed to resume handshake");
                                return -1;
                        }
                }
-               else if(session->status == ISSL_HANDSHAKING_WRITE)
+               else if (session->status == ISSL_HANDSHAKING_WRITE)
                {
-                       log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: handshake wants to write data but we are currently reading");
+                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: handshake wants to write data but we are currently reading");
                        return -1;
                }
                
                // If we resumed the handshake then session->status will be ISSL_HANDSHAKEN.
                
-               if(session->status == ISSL_HANDSHAKEN)
+               if (session->status == ISSL_HANDSHAKEN)
                {
                        // Is this right? Not sure if the unencrypted data is garaunteed to be the same length.
                        // Read into the inbuffer, offset from the beginning by the amount of data we have that insp hasn't taken yet.
-                       log(DEBUG, "m_ssl_gnutls.so: gnutls_record_recv(sess, inbuf+%d, %d-%d)", session->inbufoffset, inbufsize, session->inbufoffset);
+                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: gnutls_record_recv(sess, inbuf+%d, %d-%d)", session->inbufoffset, inbufsize, session->inbufoffset);
                        
                        int ret = gnutls_record_recv(session->sess, session->inbuf + session->inbufoffset, inbufsize - session->inbufoffset);
 
-                       if(ret == 0)
+                       if (ret == 0)
                        {
                                // Client closed connection.
-                               log(DEBUG, "m_ssl_gnutls.so: Client closed the connection");
+                               ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: Client closed the connection");
                                readresult = 0;
                                CloseSession(session);
                                return 1;
                        }
-                       else if(ret < 0)
+                       else if (ret < 0)
                        {
-                               if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
+                               if (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
                                {
-                                       log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Not all SSL data read: %s", gnutls_strerror(ret));
+                                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Not all SSL data read: %s", gnutls_strerror(ret));
                                        return -1;
                                }
                                else
                                {
-                                       log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Error reading SSL data: %s", gnutls_strerror(ret));
+                                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Error reading SSL data: %s", gnutls_strerror(ret));
                                        readresult = 0;
                                        CloseSession(session);
                                }
@@ -350,8 +449,6 @@ class ModuleSSLGnuTLS : public Module
                                // 'buffer' is 'count' long
                                
                                unsigned int length = ret + session->inbufoffset;
-               
-                               log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: Read %d bytes, now have %d waiting to be passed up", ret, length);
                                                
                                if(count <= length)
                                {
@@ -376,7 +473,7 @@ class ModuleSSLGnuTLS : public Module
                }
                else if(session->status == ISSL_CLOSING)
                {
-                       log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: session closing...");
+                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketRead: session closing...");
                        readresult = 0;
                }
                
@@ -384,13 +481,16 @@ class ModuleSSLGnuTLS : public Module
        }
        
        virtual int OnRawSocketWrite(int fd, const char* buffer, int count)
-       {               
+       {
+               if (!count)
+                       return 0;
+
                issl_session* session = &sessions[fd];
                const char* sendbuffer = buffer;
 
                if(!session->sess)
                {
-                       log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: No session to write to");
+                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: No session to write to");
                        CloseSession(session);
                        return 1;
                }
@@ -402,20 +502,19 @@ class ModuleSSLGnuTLS : public Module
                        if(Handshake(session))
                        {
                                // Handshake successfully resumed.
-                               log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: successfully resumed handshake");
+                               ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: successfully resumed handshake");
                        }
                        else
                        {
                                // Couldn't resume handshake.   
-                               log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: failed to resume handshake"); 
+                               ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: failed to resume handshake"); 
                        }
                }
                else if(session->status == ISSL_HANDSHAKING_READ)
                {
-                       log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: handshake wants to read data but we are currently writing");
+                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: handshake wants to read data but we are currently writing");
                }
 
-               log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Adding %d bytes to the outgoing buffer", count);         
                session->outbuf.append(sendbuffer, count);
                sendbuffer = session->outbuf.c_str();
                count = session->outbuf.size();
@@ -426,30 +525,29 @@ class ModuleSSLGnuTLS : public Module
                
                        if(ret == 0)
                        {
-                               log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Client closed the connection");
+                               ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Client closed the connection");
                                CloseSession(session);
                        }
                        else if(ret < 0)
                        {
                                if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
                                {
-                                       log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Not all SSL data written: %s", gnutls_strerror(ret));
+                                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Not all SSL data written: %s", gnutls_strerror(ret));
                                }
                                else
                                {
-                                       log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Error writing SSL data: %s", gnutls_strerror(ret));
+                                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Error writing SSL data: %s", gnutls_strerror(ret));
                                        CloseSession(session);                                  
                                }
                        }
                        else
                        {
-                               log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: Successfully wrote %d bytes", ret);
                                session->outbuf = session->outbuf.substr(ret);
                        }
                }
                else if(session->status == ISSL_CLOSING)
                {
-                       log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: session closing...");
+                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: OnRawSocketWrite: session closing...");
                }
                
                return 1;
@@ -461,7 +559,7 @@ class ModuleSSLGnuTLS : public Module
                // Bugfix, only send this numeric for *our* SSL users
                if(dest->GetExt("ssl", dummy) || (IS_LOCAL(dest) &&  isin(dest->GetPort(), listenports)))
                {
-                       source->WriteServ("320 %s %s :is using a secure connection", source->nick, dest->nick);
+                       ServerInstance->SendWhoisLine(source, dest, 320, "%s %s :is using a secure connection", source->nick, dest->nick);
                }
        }
        
@@ -498,7 +596,7 @@ class ModuleSSLGnuTLS : public Module
        {               
                int ret = gnutls_handshake(session->sess);
       
-      if(ret < 0)
+               if(ret < 0)
                {
                        if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
                        {
@@ -508,13 +606,13 @@ class ModuleSSLGnuTLS : public Module
                                {
                                        // gnutls_handshake() wants to read() again.
                                        session->status = ISSL_HANDSHAKING_READ;
-                                       log(DEBUG, "m_ssl_gnutls.so: Handshake needs resuming (reading) later, error string: %s", gnutls_strerror(ret));
+                                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: Handshake needs resuming (reading) later, error string: %s", gnutls_strerror(ret));
                                }
                                else
                                {
                                        // gnutls_handshake() wants to write() again.
                                        session->status = ISSL_HANDSHAKING_WRITE;
-                                       log(DEBUG, "m_ssl_gnutls.so: Handshake needs resuming (writing) later, error string: %s", gnutls_strerror(ret));
+                                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: Handshake needs resuming (writing) later, error string: %s", gnutls_strerror(ret));
                                        MakePollWrite(session); 
                                }
                        }
@@ -522,7 +620,7 @@ class ModuleSSLGnuTLS : public Module
                        {
                                // Handshake failed.
                                CloseSession(session);
-                          log(DEBUG, "m_ssl_gnutls.so: Handshake failed, error string: %s", gnutls_strerror(ret));
+                          ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: Handshake failed, error string: %s", gnutls_strerror(ret));
                           session->status = ISSL_CLOSING;
                        }
                        
@@ -531,10 +629,10 @@ class ModuleSSLGnuTLS : public Module
                else
                {
                        // Handshake complete.
-                       log(DEBUG, "m_ssl_gnutls.so: Handshake completed");
+                       ServerInstance->Log(DEBUG, "m_ssl_gnutls.so: Handshake completed");
                        
                        // This will do for setting the ssl flag...it could be done earlier if it's needed. But this seems neater.
-                       userrec* extendme = Srv->FindDescriptor(session->fd);
+                       userrec* extendme = ServerInstance->FindDescriptor(session->fd);
                        if (extendme)
                        {
                                if (!extendme->GetExt("ssl", dummy))
@@ -551,7 +649,7 @@ class ModuleSSLGnuTLS : public Module
                }
        }
 
-       virtual void OnGlobalConnect(userrec* user)
+       virtual void OnPostConnect(userrec* user)
        {
                // This occurs AFTER OnUserConnect so we can be sure the
                // protocol module has propogated the NICK message.
@@ -563,9 +661,11 @@ class ModuleSSLGnuTLS : public Module
                        metadata->push_back("ssl");             // The metadata id
                        metadata->push_back("ON");              // The value to send
                        Event* event = new Event((char*)metadata,(Module*)this,"send_metadata");
-                       event->Send();                          // Trigger the event. We don't care what module picks it up.
+                       event->Send(ServerInstance);            // Trigger the event. We don't care what module picks it up.
                        DELETE(event);
                        DELETE(metadata);
+
+                       VerifyCertificate(&sessions[user->GetFd()],user);
                }
        }
        
@@ -592,6 +692,131 @@ class ModuleSSLGnuTLS : public Module
                session->sess = NULL;
                session->status = ISSL_NONE;
        }
+
+       void VerifyCertificate(issl_session* session, Extensible* user)
+       {
+               unsigned int status;
+               const gnutls_datum_t* cert_list;
+               int ret;
+               unsigned int cert_list_size;
+               gnutls_x509_crt_t cert;
+               char name[MAXBUF];
+               unsigned char digest[MAXBUF];
+               size_t digest_size = sizeof(digest);
+               size_t name_size = sizeof(name);
+               ssl_cert* certinfo = new ssl_cert;
+
+               user->Extend("ssl_cert",certinfo);
+
+               /* This verification function uses the trusted CAs in the credentials
+                * structure. So you must have installed one or more CA certificates.
+                */
+               ret = gnutls_certificate_verify_peers2(session->sess, &status);
+
+               if (ret < 0)
+               {
+                       certinfo->data.insert(std::make_pair("error",std::string(gnutls_strerror(ret))));
+                       return;
+               }
+
+               if (status & GNUTLS_CERT_INVALID)
+               {
+                       certinfo->data.insert(std::make_pair("invalid",ConvToStr(1)));
+               }
+               else
+               {
+                       certinfo->data.insert(std::make_pair("invalid",ConvToStr(0)));
+               }
+               if (status & GNUTLS_CERT_SIGNER_NOT_FOUND)
+               {
+                       certinfo->data.insert(std::make_pair("unknownsigner",ConvToStr(1)));
+               }
+               else
+               {
+                       certinfo->data.insert(std::make_pair("unknownsigner",ConvToStr(0)));
+               }
+               if (status & GNUTLS_CERT_REVOKED)
+               {
+                       certinfo->data.insert(std::make_pair("revoked",ConvToStr(1)));
+               }
+               else
+               {
+                       certinfo->data.insert(std::make_pair("revoked",ConvToStr(0)));
+               }
+               if (status & GNUTLS_CERT_SIGNER_NOT_CA)
+               {
+                       certinfo->data.insert(std::make_pair("trusted",ConvToStr(0)));
+               }
+               else
+               {
+                       certinfo->data.insert(std::make_pair("trusted",ConvToStr(1)));
+               }
+       
+               /* Up to here the process is the same for X.509 certificates and
+                * OpenPGP keys. From now on X.509 certificates are assumed. This can
+                * be easily extended to work with openpgp keys as well.
+                */
+               if (gnutls_certificate_type_get(session->sess) != GNUTLS_CRT_X509)
+               {
+                       certinfo->data.insert(std::make_pair("error","No X509 keys sent"));
+                       return;
+               }
+
+               ret = gnutls_x509_crt_init(&cert);
+               if (ret < 0)
+               {
+                       certinfo->data.insert(std::make_pair("error",gnutls_strerror(ret)));
+                       return;
+               }
+
+               cert_list_size = 0;
+               cert_list = gnutls_certificate_get_peers(session->sess, &cert_list_size);
+               if (cert_list == NULL)
+               {
+                       certinfo->data.insert(std::make_pair("error","No certificate was found"));
+                       return;
+               }
+
+               /* This is not a real world example, since we only check the first 
+                * certificate in the given chain.
+                */
+
+               ret = gnutls_x509_crt_import(cert, &cert_list[0], GNUTLS_X509_FMT_DER);
+               if (ret < 0)
+               {
+                       certinfo->data.insert(std::make_pair("error",gnutls_strerror(ret)));
+                       return;
+               }
+
+               gnutls_x509_crt_get_dn(cert, name, &name_size);
+
+               certinfo->data.insert(std::make_pair("dn",name));
+
+               gnutls_x509_crt_get_issuer_dn(cert, name, &name_size);
+
+               certinfo->data.insert(std::make_pair("issuer",name));
+
+               if ((ret = gnutls_x509_crt_get_fingerprint(cert, GNUTLS_DIG_MD5, digest, &digest_size)) < 0)
+               {
+                       certinfo->data.insert(std::make_pair("error",gnutls_strerror(ret)));
+               }
+               else
+               {
+                       certinfo->data.insert(std::make_pair("fingerprint",irc::hex(digest, digest_size)));
+               }
+
+               /* Beware here we do not check for errors.
+                */
+               if ((gnutls_x509_crt_get_expiration_time(cert) < time(0)) || (gnutls_x509_crt_get_activation_time(cert) > time(0)))
+               {
+                       certinfo->data.insert(std::make_pair("error","Not activated, or expired certificate"));
+               }
+
+               gnutls_x509_crt_deinit(cert);
+
+               return;
+       }
+
 };
 
 class ModuleSSLGnuTLSFactory : public ModuleFactory
@@ -605,7 +830,7 @@ class ModuleSSLGnuTLSFactory : public ModuleFactory
        {
        }
        
-       virtual Module * CreateModule(Server* Me)
+       virtual Module * CreateModule(InspIRCd* Me)
        {
                return new ModuleSSLGnuTLS(Me);
        }