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[user/henk/code/inspircd.git] / src / modules / m_services_account.cpp
index c545e26b69b5eb0be262bcbb5b583be576c5f220..6789d26d80adf7c8960d0b65079c1933990a1611 100644 (file)
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- *                       E-mail:
- *                <brain@chatspike.net>
- *                <Craig@chatspike.net>
- *     
- * Written by Craig Edwards, Craig McLure, and others.
+ *  InspIRCd: (C) 2002-2009 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.
  *
  * ---------------------------------------------------
  */
 
-using namespace std;
-
-#include <stdio.h>
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
-#include <string>
-#include "helperfuncs.h"
-#include "hashcomp.h"
 #include "inspircd.h"
+#include "account.h"
 
 /* $ModDesc: Povides support for ircu-style services accounts, including chmode +R, etc. */
 
-class AChannel_R : public ModeHandler
+/** Channel mode +r - mark a channel as identified
+ */
+class Channel_r : public ModeHandler
 {
+
  public:
-       AChannel_R() : ModeHandler('R', 0, 0, false, MODETYPE_CHANNEL, false) { }
+       Channel_r(InspIRCd* Instance) : ModeHandler(Instance, 'r', 0, 0, false, MODETYPE_CHANNEL, false) { }
 
-       ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
+       ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding, bool)
        {
-               if (adding)
+               // only a u-lined server may add or remove the +r mode.
+               if (IS_REMOTE(source) || ServerInstance->ULine(source->nick.c_str()) || ServerInstance->ULine(source->server))
                {
-                       if (!channel->IsModeSet('R'))
+                       // Only change the mode if it's not redundant
+                       if ((adding && !channel->IsModeSet('r')) || (!adding && channel->IsModeSet('r')))
                        {
-                               channel->SetMode('R',true);
+                               channel->SetMode('r',adding);
                                return MODEACTION_ALLOW;
                        }
+
+                       return MODEACTION_DENY;
                }
                else
                {
-                       if (channel->IsModeSet('R'))
-                       {
-                               channel->SetMode('R',false);
-                               return MODEACTION_ALLOW;
-                       }
+                       source->WriteNumeric(500, "%s :Only a server may modify the +r channel mode", source->nick.c_str());
+                       return MODEACTION_DENY;
                }
-
-               return MODEACTION_DENY;
        }
 };
 
-class AUser_R : public ModeHandler
+/** User mode +r - mark a user as identified
+ */
+class User_r : public ModeHandler
 {
+
  public:
-       AUser_R() : ModeHandler('R', 0, 0, false, MODETYPE_USER, false) { }
+       User_r(InspIRCd* Instance) : ModeHandler(Instance, 'r', 0, 0, false, MODETYPE_USER, false) { }
 
-       ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
+       ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding, bool servermode)
        {
-               if (adding)
+               if (servermode || IS_REMOTE(source) || ServerInstance->ULine(source->nick.c_str()) || ServerInstance->ULine(source->server))
                {
-                       if (!dest->IsModeSet('R'))
+                       if ((adding && !dest->IsModeSet('r')) || (!adding && dest->IsModeSet('r')))
                        {
-                               dest->SetMode('R',true);
+                               dest->SetMode('r',adding);
                                return MODEACTION_ALLOW;
                        }
+                       return MODEACTION_DENY;
                }
                else
                {
-                       if (dest->IsModeSet('R'))
-                       {
-                               dest->SetMode('R',false);
-                               return MODEACTION_ALLOW;
-                       }
+                       source->WriteNumeric(500, "%s :Only a server may modify the +r user mode", source->nick.c_str());
+                       return MODEACTION_DENY;
                }
-
-               return MODEACTION_DENY;
        }
 };
 
-class AChannel_M : public ModeHandler
+/** Channel mode +R - unidentified users cannot join
+ */
+class AChannel_R : public SimpleChannelModeHandler
 {
  public:
-       AChannel_M() : ModeHandler('M', 0, 0, false, MODETYPE_CHANNEL, false) { }
+       AChannel_R(InspIRCd* Instance) : SimpleChannelModeHandler(Instance, 'R') { }
+};
 
-       ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
-       {
-               if (adding)
-               {
-                       if (!channel->IsModeSet('M'))
-                       {
-                               channel->SetMode('M',true);
-                               return MODEACTION_ALLOW;
-                       }
-               }
-               else
-               {
-                       if (channel->IsModeSet('M'))
-                       {
-                               channel->SetMode('M',true);
-                               return MODEACTION_ALLOW;
-                       }
-               }
+/** User mode +R - unidentified users cannot message
+ */
+class AUser_R : public SimpleUserModeHandler
+{
+ public:
+       AUser_R(InspIRCd* Instance) : SimpleUserModeHandler(Instance, 'R') { }
+};
 
-               return MODEACTION_DENY;
-       }
+/** Channel mode +M - unidentified users cannot message channel
+ */
+class AChannel_M : public SimpleChannelModeHandler
+{
+ public:
+       AChannel_M(InspIRCd* Instance) : SimpleChannelModeHandler(Instance, 'M') { }
 };
 
 class ModuleServicesAccount : public Module
 {
-       Server *Srv; 
        AChannel_R* m1;
        AChannel_M* m2;
        AUser_R* m3;
+       Channel_r *m4;
+       User_r *m5;
  public:
-       ModuleServicesAccount(Server* Me) : Module::Module(Me)
+       ModuleServicesAccount(InspIRCd* Me) : Module(Me)
        {
-               Srv = Me;
-               m1 = new AChannel_R();
-               m2 = new AChannel_M();
-               m3 = new AUser_R();
-               Srv->AddMode(m1, 'R');
-               Srv->AddMode(m2, 'M');
-               Srv->AddMode(m3, 'R');
+               m1 = new AChannel_R(ServerInstance);
+               m2 = new AChannel_M(ServerInstance);
+               m3 = new AUser_R(ServerInstance);
+               m4 = new Channel_r(ServerInstance);
+               m5 = new User_r(ServerInstance);
+
+               if (!ServerInstance->Modes->AddMode(m1) || !ServerInstance->Modes->AddMode(m2) || !ServerInstance->Modes->AddMode(m3) || !ServerInstance->Modes->AddMode(m4) || !ServerInstance->Modes->AddMode(m5))
+                       throw ModuleException("Some other module has claimed our modes!");
+
+               Implementation eventlist[] = { I_OnWhois, I_OnUserPreMessage, I_OnUserPreNotice, I_OnUserPreJoin,
+                       I_OnSyncUserMetaData, I_OnUserQuit, I_OnCleanup, I_OnDecodeMetaData, I_On005Numeric, I_OnUserPostNick };
+
+               ServerInstance->Modules->Attach(eventlist, this, 10);
        }
 
-       virtual void On005Numeric(std::string &output)
+       virtual void On005Numeric(std::string &t)
        {
-               InsertMode(output, "RM", 4);
+               ServerInstance->AddExtBanChar('R');
+               ServerInstance->AddExtBanChar('M');
        }
 
        /* <- :twisted.oscnet.org 330 w00t2 w00t2 w00t :is logged in as */
-       virtual void OnWhois(userrec* source, userrec* dest)
+       virtual void OnWhois(User* source, User* dest)
        {
                std::string *account;
                dest->GetExt("accountname", account);
 
                if (account)
                {
-                       source->WriteServ("330 %s %s %s :is logged in as", source->nick, dest->nick, account->c_str());
+                       ServerInstance->SendWhoisLine(source, dest, 330, "%s %s %s :is logged in as", source->nick.c_str(), dest->nick.c_str(), account->c_str());
+               }
+
+               if (dest->IsModeSet('r'))
+               {
+                       /* user is registered */
+                       ServerInstance->SendWhoisLine(source, dest, 307, "%s %s :is a registered nick", source->nick.c_str(), dest->nick.c_str());
                }
        }
 
-       void Implements(char* List)
+       virtual void OnUserPostNick(User* user, const std::string &oldnick)
        {
-               List[I_OnWhois] = List[I_OnUserPreMessage] = List[I_On005Numeric] = List[I_OnUserPreNotice] = List[I_OnUserPreJoin] = 1;
-               List[I_OnSyncUserMetaData] = List[I_OnUserQuit] = List[I_OnCleanup] = List[I_OnDecodeMetaData] = 1;
+               /* On nickchange, if they have +r, remove it */
+               if (user->IsModeSet('r') && assign(user->nick) != oldnick)
+               {
+                       std::vector<std::string> modechange;
+                       modechange.push_back(user->nick);
+                       modechange.push_back("-r");
+                       ServerInstance->SendMode(modechange, user);
+               }
        }
 
-       virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status)
+       virtual int OnUserPreMessage(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
        {
+               if (!IS_LOCAL(user))
+                       return 0;
+
                std::string *account;
-               user->GetExt("accountname", account);
-               
+               bool is_registered = user->GetExt("accountname", account);
+               is_registered = is_registered && !account->empty();
+
+               if ((ServerInstance->ULine(user->nick.c_str())) || (ServerInstance->ULine(user->server)))
+               {
+                       // user is ulined, can speak regardless
+                       return 0;
+               }
+
                if (target_type == TYPE_CHANNEL)
                {
-                       chanrec* c = (chanrec*)dest;
-                       
-                       if ((c->IsModeSet('M')) && (!account))
-                       {
-                               if ((Srv->IsUlined(user->nick)) || (Srv->IsUlined(user->server)) || (!strcmp(user->server,"")))
-                               {
-                                       // user is ulined, can speak regardless
-                                       return 0;
-                               }
+                       Channel* c = (Channel*)dest;
 
+                       if (c->IsModeSet('M') && !is_registered)
+                       {
                                // user messaging a +M channel and is not registered
-                               user->WriteServ("477 "+std::string(user->nick)+" "+std::string(c->name)+" :You need to be identified to a registered account to message this channel");
+                               user->WriteNumeric(477, ""+std::string(user->nick)+" "+std::string(c->name)+" :You need to be identified to a registered account to message this channel");
                                return 1;
                        }
-               }
-               if (target_type == TYPE_USER)
-               {
-                       userrec* u = (userrec*)dest;
-                       
-                       if ((u->modes['R'-65]) && (!account))
+
+                       if (account)
                        {
-                               if ((Srv->IsUlined(user->nick)) || (Srv->IsUlined(user->server)))
+                               if (c->IsExtBanned(*account, 'M'))
                                {
-                                       // user is ulined, can speak regardless
-                                       return 0;
+                                       // may not speak (text is deliberately vague, so they don't know which restriction to evade)
+                                       user->WriteNumeric(477, ""+std::string(user->nick)+" "+std::string(c->name)+" :You may not speak in this channel");
+                                       return 1;
                                }
+                       }
+               }
+               else if (target_type == TYPE_USER)
+               {
+                       User* u = (User*)dest;
 
+                       if (u->IsModeSet('R') && !is_registered)
+                       {
                                // user messaging a +R user and is not registered
-                               user->WriteServ("477 "+std::string(user->nick)+" "+std::string(u->nick)+" :You need to be identified to a registered account to message this user");
+                               user->WriteNumeric(477, ""+ user->nick +" "+ u->nick +" :You need to be identified to a registered account to message this user");
                                return 1;
                        }
                }
                return 0;
        }
-        
-       virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status)
+
+       virtual int OnUserPreNotice(User* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
        {
-               return OnUserPreMessage(user, dest, target_type, text, status);
+               return OnUserPreMessage(user, dest, target_type, text, status, exempt_list);
        }
-        
-       virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
+
+       virtual int OnUserPreJoin(User* user, Channel* chan, const char* cname, std::string &privs, const std::string &keygiven)
        {
+               if (!IS_LOCAL(user))
+                       return 0;
+
                std::string *account;
-               user->GetExt("accountname", account);
-               
+               bool is_registered = user->GetExt("accountname", account);
+               is_registered = is_registered && !account->empty();
+
                if (chan)
                {
+                       if ((ServerInstance->ULine(user->nick.c_str())) || (ServerInstance->ULine(user->server)))
+                       {
+                               // user is ulined, won't be stopped from joining
+                               return 0;
+                       }
+
                        if (chan->IsModeSet('R'))
                        {
-                               if (!account)
+                               if (!is_registered)
                                {
-                                       if ((Srv->IsUlined(user->nick)) || (Srv->IsUlined(user->server)))
-                                       {
-                                               // user is ulined, won't be stopped from joining
-                                               return 0;
-                                       }
                                        // joining a +R channel and not identified
-                                       user->WriteServ("477 "+std::string(user->nick)+" "+std::string(chan->name)+" :You need to be identified to a registered account to join this channel");
+                                       user->WriteNumeric(477, user->nick + " " + chan->name + " :You need to be identified to a registered account to join this channel");
+                                       return 1;
+                               }
+                       }
+
+                       if (account)
+                       {
+                               if (chan->IsExtBanned(*account, 'R'))
+                               {
+                                       // may not join
+                                       user->WriteNumeric(ERR_BANNEDFROMCHAN, "%s %s :Cannot join channel (You're banned)", user->nick.c_str(),  chan->name.c_str());
                                        return 1;
                                }
                        }
                }
                return 0;
        }
-       
+
        // Whenever the linking module wants to send out data, but doesnt know what the data
-       // represents (e.g. it is metadata, added to a userrec or chanrec by a module) then
+       // represents (e.g. it is metadata, added to a User or Channel by a module) then
        // this method is called. We should use the ProtoSendMetaData function after we've
        // corrected decided how the data should look, to send the metadata on its way if
        // it is ours.
-       virtual void OnSyncUserMetaData(userrec* user, Module* proto, void* opaque, const std::string &extname)
+       virtual void OnSyncUserMetaData(User* user, Module* proto, void* opaque, const std::string &extname, bool displayable)
        {
                // check if the linking module wants to know about OUR metadata
                if (extname == "accountname")
@@ -239,6 +268,9 @@ class ModuleServicesAccount : public Module
                        user->GetExt("accountname", account);
                        if (account)
                        {
+                               // remove any accidental leading/trailing spaces
+                               trim(*account);
+
                                // call this function in the linking module, let it format the data how it
                                // sees fit, and send it on its way. We dont need or want to know how.
                                proto->ProtoSendMetaData(opaque,TYPE_USER,user,extname,*account);
@@ -247,7 +279,7 @@ class ModuleServicesAccount : public Module
        }
 
        // when a user quits, tidy up their metadata
-       virtual void OnUserQuit(userrec* user, const std::string &message)
+       virtual void OnUserQuit(User* user, const std::string &message, const std::string &oper_message)
        {
                std::string* account;
                user->GetExt("accountname", account);
@@ -263,7 +295,7 @@ class ModuleServicesAccount : public Module
        {
                if (target_type == TYPE_USER)
                {
-                       userrec* user = (userrec*)item;
+                       User* user = (User*)item;
                        std::string* account;
                        user->GetExt("accountname", account);
                        if (account)
@@ -285,10 +317,11 @@ class ModuleServicesAccount : public Module
        {
                // check if its our metadata key, and its associated with a user
                if ((target_type == TYPE_USER) && (extname == "accountname"))
-               {       
-                       userrec* dest = (userrec*)target;
+               {
+                       User* dest = (User*)target;
+
                        /* logging them out? */
-                       if (extdata == "")
+                       if (extdata.empty())
                        {
                                std::string* account;
                                dest->GetExt("accountname", account);
@@ -305,7 +338,18 @@ class ModuleServicesAccount : public Module
                                if (!dest->GetExt("accountname", text))
                                {
                                        text = new std::string(extdata);
+                                       // remove any accidental leading/trailing spaces
+                                       trim(*text);
                                        dest->Extend("accountname", text);
+
+                                       if (IS_LOCAL(dest))
+                                               dest->WriteNumeric(900, "%s %s %s :You are now logged in as %s", dest->nick.c_str(), dest->GetFullHost().c_str(), text->c_str(), text->c_str());
+
+                                       AccountData ac;
+                                       ac.user = dest;
+                                       ac.account = *text;
+                                       Event n((char*)&ac, this, "account_login");
+                                       n.Send(ServerInstance);
                                }
                        }
                }
@@ -313,38 +357,22 @@ class ModuleServicesAccount : public Module
 
        virtual ~ModuleServicesAccount()
        {
-               DELETE(m1);
-               DELETE(m2);
-               DELETE(m3);
+               ServerInstance->Modes->DelMode(m1);
+               ServerInstance->Modes->DelMode(m2);
+               ServerInstance->Modes->DelMode(m3);
+               ServerInstance->Modes->DelMode(m4);
+               ServerInstance->Modes->DelMode(m5);
+               delete m1;
+               delete m2;
+               delete m3;
+               delete m4;
+               delete m5;
        }
-       
-       virtual Version GetVersion()
-       {
-               return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
-       }
-};
-
 
-class ModuleServicesAccountFactory : public ModuleFactory
-{
- public:
-       ModuleServicesAccountFactory()
-       {
-       }
-       
-       ~ModuleServicesAccountFactory()
-       {
-       }
-       
-       virtual Module * CreateModule(Server* Me)
+       virtual Version GetVersion()
        {
-               return new ModuleServicesAccount(Me);
+               return Version("$Id$",VF_COMMON|VF_VENDOR,API_VERSION);
        }
-       
 };
 
-
-extern "C" void * init_module( void )
-{
-       return new ModuleServicesAccountFactory;
-}
+MODULE_INIT(ModuleServicesAccount)