1 /* +------------------------------------+
\r * | Inspire Internet Relay Chat Daemon |
\r * +------------------------------------+
\r *
\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team
\r * See: http://www.inspircd.org/wiki/index.php/Credits
\r *
\r * This program is free but copyrighted software; see
\r * the file COPYING for details.
\r *
\r * ---------------------------------------------------
\r */
\r\r#include "inspircd.h"
\r#include "users.h"
\r#include "channels.h"
\r#include "modules.h"
\r#include "m_sqlv2.h"
\r#include "m_sqlutils.h"
\r\r/* $ModDesc: Allow/Deny connections based upon an arbitary SQL table */
\r/* $ModDep: m_sqlv2.h m_sqlutils.h */
\r\rclass ModuleSQLAuth : public Module
\r{
\r Module* SQLutils;
\r Module* SQLprovider;
\r\r std::string usertable;
\r std::string userfield;
\r std::string passfield;
\r std::string encryption;
\r std::string killreason;
\r std::string allowpattern;
\r std::string databaseid;
\r \r bool verbose;
\r \rpublic:
\r ModuleSQLAuth(InspIRCd* Me)
\r : Module::Module(Me)
\r {
\r ServerInstance->UseInterface("SQLutils");
\r ServerInstance->UseInterface("SQL");
\r\r SQLutils = ServerInstance->FindModule("m_sqlutils.so");
\r if (!SQLutils)
\r throw ModuleException("Can't find m_sqlutils.so. Please load m_sqlutils.so before m_sqlauth.so.");
\r\r SQLprovider = ServerInstance->FindFeature("SQL");
\r if (!SQLprovider)
\r throw ModuleException("Can't find an SQL provider module. Please load one before attempting to load m_sqlauth.");
\r\r OnRehash(NULL,"");
\r }
\r\r virtual ~ModuleSQLAuth()
\r {
\r ServerInstance->DoneWithInterface("SQL");
\r ServerInstance->DoneWithInterface("SQLutils");
\r }
\r\r void Implements(char* List)
\r {
\r List[I_OnUserDisconnect] = List[I_OnCheckReady] = List[I_OnRequest] = List[I_OnRehash] = List[I_OnUserRegister] = 1;
\r }
\r\r virtual void OnRehash(userrec* user, const std::string ¶meter)
\r {
\r ConfigReader Conf(ServerInstance);
\r \r usertable = Conf.ReadValue("sqlauth", "usertable", 0); /* User table name */
\r databaseid = Conf.ReadValue("sqlauth", "dbid", 0); /* Database ID, given to the SQL service provider */
\r userfield = Conf.ReadValue("sqlauth", "userfield", 0); /* Field name where username can be found */
\r passfield = Conf.ReadValue("sqlauth", "passfield", 0); /* Field name where password can be found */
\r killreason = Conf.ReadValue("sqlauth", "killreason", 0); /* Reason to give when access is denied to a user (put your reg details here) */
\r allowpattern= Conf.ReadValue("sqlauth", "allowpattern",0 ); /* Allow nicks matching this pattern without requiring auth */
\r encryption = Conf.ReadValue("sqlauth", "encryption", 0); /* Name of sql function used to encrypt password, e.g. "md5" or "passwd".
\r * define, but leave blank if no encryption is to be used.
\r */
\r verbose = Conf.ReadFlag("sqlauth", "verbose", 0); /* Set to true if failed connects should be reported to operators */
\r \r if (encryption.find("(") == std::string::npos)
\r {
\r encryption.append("(");
\r }
\r }
\r\r virtual int OnUserRegister(userrec* user)
\r {
\r if ((!allowpattern.empty()) && (ServerInstance->MatchText(user->nick,allowpattern)))
\r {
\r user->Extend("sqlauthed");
\r return 0;
\r }
\r \r if (!CheckCredentials(user))
\r {
\r userrec::QuitUser(ServerInstance,user,killreason);
\r return 1;
\r }
\r return 0;
\r }
\r\r bool CheckCredentials(userrec* user)
\r {
\r SQLrequest req = SQLreq(this, SQLprovider, databaseid, "SELECT ? FROM ? WHERE ? = '?' AND ? = ?'?')", userfield, usertable, userfield, user->nick, passfield, encryption, user->password);
\r \r if(req.Send())
\r {
\r /* When we get the query response from the service provider we will be given an ID to play with,
\r * just an ID number which is unique to this query. We need a way of associating that ID with a userrec
\r * so we insert it into a map mapping the IDs to users.
\r * Thankfully m_sqlutils provides this, it will associate a ID with a user or channel, and if the user quits it removes the
\r * association. This means that if the user quits during a query we will just get a failed lookup from m_sqlutils - telling
\r * us to discard the query.
\r */
\r AssociateUser(this, SQLutils, req.id, user).Send();
\r \r return true;
\r }
\r else
\r {
\r if (verbose)
\r ServerInstance->WriteOpers("Forbidden connection from %s!%s@%s (SQL query failed: %s)", user->nick, user->ident, user->host, req.error.Str());
\r return false;
\r }
\r }
\r \r virtual char* OnRequest(Request* request)
\r {
\r if(strcmp(SQLRESID, request->GetId()) == 0)
\r {
\r SQLresult* res = static_cast<SQLresult*>(request);
\r\r userrec* user = GetAssocUser(this, SQLutils, res->id).S().user;
\r UnAssociate(this, SQLutils, res->id).S();
\r \r if(user)
\r {
\r if(res->error.Id() == NO_ERROR)
\r {
\r if(res->Rows())
\r {
\r /* We got a row in the result, this is enough really */
\r user->Extend("sqlauthed");
\r }
\r else if (verbose)
\r {
\r /* No rows in result, this means there was no record matching the user */
\r ServerInstance->WriteOpers("Forbidden connection from %s!%s@%s (SQL query returned no matches)", user->nick, user->ident, user->host);
\r user->Extend("sqlauth_failed");
\r }
\r }
\r else if (verbose)
\r {
\r ServerInstance->WriteOpers("Forbidden connection from %s!%s@%s (SQL query failed: %s)", user->nick, user->ident, user->host, res->error.Str());
\r user->Extend("sqlauth_failed");
\r }
\r }
\r else
\r {
\r return NULL;
\r }
\r\r if (!user->GetExt("sqlauthed"))
\r {
\r userrec::QuitUser(ServerInstance,user,killreason);
\r }
\r return SQLSUCCESS;
\r }
\r return NULL;
\r }
\r \r virtual void OnUserDisconnect(userrec* user)
\r {
\r user->Shrink("sqlauthed");
\r user->Shrink("sqlauth_failed");
\r }
\r \r virtual bool OnCheckReady(userrec* user)
\r {
\r return user->GetExt("sqlauthed");
\r }
\r\r virtual Version GetVersion()
\r {
\r return Version(1,1,1,0,VF_VENDOR,API_VERSION);
\r }
\r \r};
\r\rMODULE_INIT(ModuleSQLAuth);
\r\r
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