]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_sqlauth.cpp
Change SQLv3 to format queries during submission, not before
[user/henk/code/inspircd.git] / src / modules / m_sqlauth.cpp
index 256bf346a8698f610d267224f83efea366dffca2..29554b03176533756c3a062c041c7b6379a1700e 100644 (file)
@@ -2,7 +2,7 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ *  InspIRCd: (C) 2002-2010 InspIRCd Development Team
  * See: http://wiki.inspircd.org/Credits
  *
  * This program is free but copyrighted software; see
  */
 
 #include "inspircd.h"
-#include "m_sqlv2.h"
-#include "m_sqlutils.h"
-#include "m_hash.h"
+#include "sql.h"
+#include "hash.h"
 
 /* $ModDesc: Allow/Deny connections based upon an arbitary SQL table */
-/* $ModDep: m_sqlv2.h m_sqlutils.h m_hash.h */
+
+enum AuthState {
+       AUTH_STATE_NONE = 0,
+       AUTH_STATE_BUSY = 1,
+       AUTH_STATE_FAIL = 2
+};
+
+class AuthQuery : public SQLQuery
+{
+ public:
+       const std::string uid;
+       LocalIntExt& pendingExt;
+       bool verbose;
+       AuthQuery(Module* me, const std::string& u, LocalIntExt& e, bool v)
+               : SQLQuery(me), uid(u), pendingExt(e), verbose(v)
+       {
+       }
+       
+       void OnResult(SQLResult& res)
+       {
+               User* user = ServerInstance->FindNick(uid);
+               if (!user)
+                       return;
+               if (res.Rows())
+               {
+                       pendingExt.set(user, AUTH_STATE_NONE);
+               }
+               else
+               {
+                       if (verbose)
+                               ServerInstance->SNO->WriteGlobalSno('a', "Forbidden connection from %s!%s@%s (SQL query returned no matches)", user->nick.c_str(), user->ident.c_str(), user->host.c_str());
+                       pendingExt.set(user, AUTH_STATE_FAIL);
+               }
+       }
+
+       void OnError(SQLerror& error)
+       {
+               User* user = ServerInstance->FindNick(uid);
+               if (!user)
+                       return;
+               pendingExt.set(user, AUTH_STATE_FAIL);
+               if (verbose)
+                       ServerInstance->SNO->WriteGlobalSno('a', "Forbidden connection from %s!%s@%s (SQL query failed: %s)", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), error.Str());
+       }
+};
 
 class ModuleSQLAuth : public Module
 {
-       LocalIntExt sqlAuthed;
-       Module* SQLutils;
-       Module* SQLprovider;
+       LocalIntExt pendingExt;
+       dynamic_reference<SQLProvider> SQL;
 
        std::string freeformquery;
        std::string killreason;
        std::string allowpattern;
-       std::string databaseid;
-
        bool verbose;
 
-public:
-       ModuleSQLAuth() : sqlAuthed("sqlauth", this)
+ public:
+       ModuleSQLAuth() : pendingExt("sqlauth-wait", this), SQL(this, "SQL")
        {
-               ServerInstance->Modules->UseInterface("SQLutils");
-               ServerInstance->Modules->UseInterface("SQL");
-
-               SQLutils = ServerInstance->Modules->Find("m_sqlutils.so");
-               if (!SQLutils)
-                       throw ModuleException("Can't find m_sqlutils.so. Please load m_sqlutils.so before m_sqlauth.so.");
-
-               SQLprovider = ServerInstance->Modules->FindFeature("SQL");
-               if (!SQLprovider)
-                       throw ModuleException("Can't find an SQL provider module. Please load one before attempting to load m_sqlauth.");
-
-               OnRehash(NULL);
-               Implementation eventlist[] = { I_OnUserDisconnect, I_OnCheckReady, I_OnRequest, I_OnRehash, I_OnUserRegister };
-               ServerInstance->Modules->Attach(eventlist, this, 5);
        }
 
-       virtual ~ModuleSQLAuth()
+       void init()
        {
-               ServerInstance->Modules->DoneWithInterface("SQL");
-               ServerInstance->Modules->DoneWithInterface("SQLutils");
+               ServerInstance->Modules->AddService(pendingExt);
+               OnRehash(NULL);
+               Implementation eventlist[] = { I_OnUserDisconnect, I_OnCheckReady, I_OnRehash, I_OnUserRegister };
+               ServerInstance->Modules->Attach(eventlist, this, 4);
        }
 
-
        void OnRehash(User* user)
        {
                ConfigReader Conf;
 
-               databaseid      = Conf.ReadValue("sqlauth", "dbid", 0);                 /* Database ID, given to the SQL service provider */
+               SQL.SetProvider("SQL/" + Conf.ReadValue("sqlauth", "dbid", 0));         /* Database ID, given to the SQL service provider */
                freeformquery   = Conf.ReadValue("sqlauth", "query", 0);        /* Field name where username can be found */
                killreason      = Conf.ReadValue("sqlauth", "killreason", 0);   /* Reason to give when access is denied to a user (put your reg details here) */
                allowpattern    = Conf.ReadValue("sqlauth", "allowpattern",0 ); /* Allow nicks matching this pattern without requiring auth */
                verbose         = Conf.ReadFlag("sqlauth", "verbose", 0);               /* Set to true if failed connects should be reported to operators */
+               SQL.lookup();
        }
 
-       ModResult OnUserRegister(User* user)
+       ModResult OnUserRegister(LocalUser* user)
        {
-               if ((!allowpattern.empty()) && (InspIRCd::Match(user->nick,allowpattern)))
-               {
-                       sqlAuthed.set(user, 1);
+               // Note this is their initial (unresolved) connect block
+               ConfigTag* tag = user->MyClass->config;
+               if (!tag->getBool("usesqlauth", true))
                        return MOD_RES_PASSTHRU;
-               }
-
-               if (!CheckCredentials(user))
-               {
-                       ServerInstance->Users->QuitUser(user, killreason);
-                       return MOD_RES_DENY;
-               }
-               return MOD_RES_PASSTHRU;
-       }
-
-       bool CheckCredentials(User* user)
-       {
-               std::string thisquery = freeformquery;
-               std::string safepass = user->password;
-               std::string safegecos = user->fullname;
 
-               /* Search and replace the escaped nick and escaped pass into the query */
+               if (!allowpattern.empty() && InspIRCd::Match(user->nick,allowpattern))
+                       return MOD_RES_PASSTHRU;
 
-               SearchAndReplace(safepass, std::string("\""), std::string("\\\""));
-               SearchAndReplace(safegecos, std::string("\""), std::string("\\\""));
+               if (pendingExt.get(user))
+                       return MOD_RES_PASSTHRU;
 
-               SearchAndReplace(thisquery, std::string("$nick"), user->nick);
-               SearchAndReplace(thisquery, std::string("$pass"), safepass);
-               SearchAndReplace(thisquery, std::string("$host"), user->host);
-               SearchAndReplace(thisquery, std::string("$ip"), std::string(user->GetIPString()));
-               SearchAndReplace(thisquery, std::string("$gecos"), safegecos);
-               SearchAndReplace(thisquery, std::string("$ident"), user->ident);
-               SearchAndReplace(thisquery, std::string("$server"), std::string(user->server));
-               SearchAndReplace(thisquery, std::string("$uuid"), user->uuid);
+               pendingExt.set(user, AUTH_STATE_BUSY);
 
-               Module* HashMod = ServerInstance->Modules->Find("m_md5.so");
+               ParamM userinfo;
+               SQL->PopulateUserInfo(user, userinfo);
+               userinfo["pass"] = user->password;
 
-               if (HashMod)
-               {
-                       HashResetRequest(this, HashMod).Send();
-                       SearchAndReplace(thisquery, std::string("$md5pass"), std::string(HashSumRequest(this, HashMod, user->password).Send()));
-               }
+               HashProvider* md5 = ServerInstance->Modules->FindDataService<HashProvider>("hash/md5");
+               if (md5)
+                       userinfo["md5pass"] = md5->hexsum(user->password);
 
-               HashMod = ServerInstance->Modules->Find("m_sha256.so");
+               HashProvider* sha256 = ServerInstance->Modules->FindDataService<HashProvider>("hash/sha256");
+               if (sha256)
+                       userinfo["sha256pass"] = sha256->hexsum(user->password);
 
-               if (HashMod)
-               {
-                       HashResetRequest(this, HashMod).Send();
-                       SearchAndReplace(thisquery, std::string("$sha256pass"), std::string(HashSumRequest(this, HashMod, user->password).Send()));
-               }
+               SQL->submit(new AuthQuery(this, user->uuid, pendingExt, verbose), freeformquery, userinfo);
 
-               /* Build the query */
-               SQLrequest req = SQLrequest(this, SQLprovider, databaseid, SQLquery(thisquery));
-
-               if(req.Send())
-               {
-                       /* When we get the query response from the service provider we will be given an ID to play with,
-                        * just an ID number which is unique to this query. We need a way of associating that ID with a User
-                        * so we insert it into a map mapping the IDs to users.
-                        * Thankfully m_sqlutils provides this, it will associate a ID with a user or channel, and if the user quits it removes the
-                        * association. This means that if the user quits during a query we will just get a failed lookup from m_sqlutils - telling
-                        * us to discard the query.
-                        */
-                       AssociateUser(this, SQLutils, req.id, user).Send();
-
-                       return true;
-               }
-               else
-               {
-                       if (verbose)
-                               ServerInstance->SNO->WriteGlobalSno('a', "Forbidden connection from %s!%s@%s (SQL query failed: %s)", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), req.error.Str());
-                       return false;
-               }
+               return MOD_RES_PASSTHRU;
        }
 
-       virtual const char* OnRequest(Request* request)
+       ModResult OnCheckReady(LocalUser* user)
        {
-               if(strcmp(SQLRESID, request->GetId()) == 0)
+               switch (pendingExt.get(user))
                {
-                       SQLresult* res = static_cast<SQLresult*>(request);
-
-                       User* user = GetAssocUser(this, SQLutils, res->id).S().user;
-                       UnAssociate(this, SQLutils, res->id).S();
-
-                       if(user)
-                       {
-                               if(res->error.Id() == SQL_NO_ERROR)
-                               {
-                                       if(res->Rows())
-                                       {
-                                               /* We got a row in the result, this is enough really */
-                                               sqlAuthed.set(user, 1);
-                                       }
-                                       else if (verbose)
-                                       {
-                                               /* No rows in result, this means there was no record matching the user */
-                                               ServerInstance->SNO->WriteGlobalSno('a', "Forbidden connection from %s!%s@%s (SQL query returned no matches)", user->nick.c_str(), user->ident.c_str(), user->host.c_str());
-                                       }
-                               }
-                               else if (verbose)
-                               {
-                                       ServerInstance->SNO->WriteGlobalSno('a', "Forbidden connection from %s!%s@%s (SQL query failed: %s)", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), res->error.Str());
-                               }
-                       }
-                       else
-                       {
-                               return NULL;
-                       }
-
-                       if (!sqlAuthed.get(user))
-                       {
+                       case AUTH_STATE_NONE:
+                               return MOD_RES_PASSTHRU;
+                       case AUTH_STATE_BUSY:
+                               return MOD_RES_DENY;
+                       case AUTH_STATE_FAIL:
                                ServerInstance->Users->QuitUser(user, killreason);
-                       }
-                       return SQLSUCCESS;
+                               return MOD_RES_DENY;
                }
-               return NULL;
-       }
-
-       ModResult OnCheckReady(User* user)
-       {
-               return sqlAuthed.get(user) ? MOD_RES_PASSTHRU : MOD_RES_DENY;
+               return MOD_RES_PASSTHRU;
        }
 
        Version GetVersion()
        {
-               return Version("Allow/Deny connections based upon an arbitary SQL table", VF_VENDOR, API_VERSION);
+               return Version("Allow/Deny connections based upon an arbitary SQL table", VF_VENDOR);
        }
-
 };
 
 MODULE_INIT(ModuleSQLAuth)