]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_sslinfo.cpp
Fix memory leak and invalid vtable location on unload of m_sslinfo
[user/henk/code/inspircd.git] / src / modules / m_sslinfo.cpp
index fb1a0066641cfedcd0e1ab2c880a4bfae05414b3..0f1f04e99cfe99f8676e30ef5ad6c807fe1ee891 100644 (file)
 #include "inspircd.h"
 #include "transport.h"
 
-/* $ModDesc: Provides /sslinfo command used to test who a mask matches */
-/* $ModDep: transport.h */
+/* $ModDesc: Provides SSL metadata, including /WHOIS information and /SSLINFO command */
 
 /** Handle /SSLINFO
  */
 class CommandSSLInfo : public Command
 {
  public:
-       CommandSSLInfo (InspIRCd* Instance) : Command(Instance,"SSLINFO", 0, 1)
+       CommandSSLInfo(InspIRCd* Instance, Module* Creator) : Command(Instance, Creator, "SSLINFO", 0, 1)
        {
-               this->source = "m_sslinfo.so";
                this->syntax = "<nick>";
        }
 
@@ -64,15 +62,15 @@ class CommandSSLInfo : public Command
 
 class ModuleSSLInfo : public Module
 {
-       CommandSSLInfo* newcommand;
+       CommandSSLInfo cmd;
  public:
        ModuleSSLInfo(InspIRCd* Me)
-               : Module(Me)
+               : Module(Me), cmd(Me, this)
        {
+               ServerInstance->AddCommand(&cmd);
 
-               newcommand = new CommandSSLInfo(ServerInstance);
-               ServerInstance->AddCommand(newcommand);
-
+               Implementation eventlist[] = { I_OnSyncUser, I_OnDecodeMetaData, I_OnWhois, I_OnPreCommand };
+               ServerInstance->Modules->Attach(eventlist, this, 4);
        }
 
 
@@ -84,6 +82,157 @@ class ModuleSSLInfo : public Module
        {
                return Version("$Id$", VF_VENDOR, API_VERSION);
        }
+
+       virtual void OnCleanup(int target_type, void* item)
+       {
+               if (target_type != TYPE_USER)
+                       return;
+               User* user = static_cast<User*>(item);
+               user->Shrink("ssl_cert");
+       }
+
+       virtual void OnWhois(User* source, User* dest)
+       {
+               if(dest->GetExt("ssl"))
+               {
+                       ServerInstance->SendWhoisLine(source, dest, 320, "%s %s :is using a secure connection", source->nick.c_str(), dest->nick.c_str());
+               }
+       }
+
+       virtual void OnSyncUser(User* user, Module* proto, void* opaque)
+       {
+               if (user->GetExt("ssl"))
+                       proto->ProtoSendMetaData(opaque, user, "ssl", "ON");
+               
+               ssl_cert* cert;
+               if (user->GetExt("ssl_cert", cert))
+                       proto->ProtoSendMetaData(opaque, user, "ssl_cert", cert->GetMetaLine().c_str());
+       }
+
+       virtual void OnDecodeMetaData(Extensible* target, const std::string &extname, const std::string &extdata)
+       {
+               User* dest = dynamic_cast<User*>(target);
+               // check if its our metadata key, and its associated with a user
+               if (dest && (extname == "ssl"))
+               {
+                       // if they dont already have an ssl flag, accept the remote server's
+                       if (!dest->GetExt(extname))
+                       {
+                               dest->Extend(extname);
+                       }
+               }
+               else if (dest && (extname == "ssl_cert"))
+               {
+                       if (dest->GetExt(extname))
+                               return;
+
+                       ssl_cert* cert = new ssl_cert;
+                       dest->Extend(extname, cert);
+
+                       std::stringstream s(extdata);
+                       std::string v;
+                       getline(s,v,' ');
+
+                       cert->invalid = (v.find('v') != std::string::npos);
+                       cert->trusted = (v.find('T') != std::string::npos);
+                       cert->revoked = (v.find('R') != std::string::npos);
+                       cert->unknownsigner = (v.find('s') != std::string::npos);
+                       if (v.find('E') != std::string::npos)
+                       {
+                               getline(s,cert->error,'\n');
+                       }
+                       else
+                       {
+                               getline(s,cert->fingerprint,' ');
+                               getline(s,cert->dn,' ');
+                               getline(s,cert->issuer,'\n');
+                       }
+               }
+       }
+
+       bool OneOfMatches(const char* host, const char* ip, const char* hostlist)
+       {
+               std::stringstream hl(hostlist);
+               std::string xhost;
+               while (hl >> xhost)
+               {
+                       if (InspIRCd::Match(host, xhost, ascii_case_insensitive_map) || InspIRCd::MatchCIDR(ip, xhost, ascii_case_insensitive_map))
+                       {
+                               return true;
+                       }
+               }
+               return false;
+       }
+
+       virtual ModResult OnPreCommand(std::string &command, std::vector<std::string> &parameters, User *user, bool validated, const std::string &original_line)
+       {
+               irc::string pcmd = command.c_str();
+
+               if ((pcmd == "OPER") && (validated))
+               {
+                       ConfigReader cf(ServerInstance);
+                       char TheHost[MAXBUF];
+                       char TheIP[MAXBUF];
+                       std::string LoginName;
+                       std::string Password;
+                       std::string OperType;
+                       std::string HostName;
+                       std::string HashType;
+                       std::string FingerPrint;
+                       bool SSLOnly;
+                       ssl_cert* cert = NULL;
+
+                       snprintf(TheHost,MAXBUF,"%s@%s",user->ident.c_str(),user->host.c_str());
+                       snprintf(TheIP, MAXBUF,"%s@%s",user->ident.c_str(),user->GetIPString());
+
+                       user->GetExt("ssl_cert",cert);
+
+                       for (int i = 0; i < cf.Enumerate("oper"); i++)
+                       {
+                               LoginName = cf.ReadValue("oper", "name", i);
+                               Password = cf.ReadValue("oper", "password", i);
+                               OperType = cf.ReadValue("oper", "type", i);
+                               HostName = cf.ReadValue("oper", "host", i);
+                               HashType = cf.ReadValue("oper", "hash", i);
+                               FingerPrint = cf.ReadValue("oper", "fingerprint", i);
+                               SSLOnly = cf.ReadFlag("oper", "sslonly", i);
+
+                               if (FingerPrint.empty() && !SSLOnly)
+                                       continue;
+
+                               if (LoginName != parameters[0])
+                                       continue;
+
+                               if (!OneOfMatches(TheHost, TheIP, HostName.c_str()))
+                                       continue;
+
+                               if (Password.length() && ServerInstance->PassCompare(user, Password.c_str(),parameters[1].c_str(), HashType.c_str()))
+                                       continue;
+
+                               if (SSLOnly && !user->GetExt("ssl"))
+                               {
+                                       user->WriteNumeric(491, "%s :This oper login name requires an SSL connection.", user->nick.c_str());
+                                       return MOD_RES_DENY;
+                               }
+
+                               /*
+                                * No cert found or the fingerprint doesn't match
+                                */
+                               if ((!cert) || (cert->GetFingerprint() != FingerPrint))
+                               {
+                                       user->WriteNumeric(491, "%s :This oper login name requires a matching key fingerprint.",user->nick.c_str());
+                                       ServerInstance->SNO->WriteToSnoMask('o',"'%s' cannot oper, does not match fingerprint", user->nick.c_str());
+                                       ServerInstance->Logs->Log("m_ssl_oper_cert",DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: credentials valid, but wrong fingerprint.", user->nick.c_str(), user->ident.c_str(), user->host.c_str());
+                                       return MOD_RES_DENY;
+                               }
+                       }
+               }
+
+               // Let core handle it for extra stuff
+               return MOD_RES_PASSTHRU;
+       }
+
+
 };
 
 MODULE_INIT(ModuleSSLInfo)