1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
16 /* $ModDesc: Attempt to block /amsg, at least some of the irritating mIRC scripts. */
18 enum BlockAction { IBLOCK_KILL, IBLOCK_KILLOPERS, IBLOCK_NOTICE, IBLOCK_NOTICEOPERS, IBLOCK_SILENT };
19 /* IBLOCK_NOTICE - Send a notice to the user informing them of what happened.
20 * IBLOCK_NOTICEOPERS - Send a notice to the user informing them and send an oper notice.
21 * IBLOCK_SILENT - Generate no output, silently drop messages.
22 * IBLOCK_KILL - Kill the user with the reason "Global message (/amsg or /ame) detected".
23 * IBLOCK_KILLOPERS - As above, but send an oper notice as well. This is the default.
26 /** Holds a blocked message's details
28 class BlockedMessage : public classbase
35 BlockedMessage(const std::string &msg, const irc::string &tgt, time_t when)
36 : message(msg), target(tgt), sent(when)
41 class ModuleBlockAmsg : public Module
47 ModuleBlockAmsg(InspIRCd* Me)
51 this->OnRehash(NULL,"");
52 Implementation eventlist[] = { I_OnRehash, I_OnPreCommand, I_OnCleanup };
53 ServerInstance->Modules->Attach(eventlist, this, 3);
56 void Implements(char* List)
58 List[I_OnRehash] = List[I_OnPreCommand] = List[I_OnCleanup] = 1;
61 virtual ~ModuleBlockAmsg()
65 virtual Version GetVersion()
67 return Version(1,1,0,0,VF_VENDOR,API_VERSION);
70 virtual void OnRehash(User* user, const std::string ¶meter)
72 ConfigReader Conf(ServerInstance);
74 ForgetDelay = Conf.ReadInteger("blockamsg", "delay", 0, false);
76 if(Conf.GetError() == CONF_VALUE_NOT_FOUND)
79 std::string act = Conf.ReadValue("blockamsg", "action", 0);
82 action = IBLOCK_NOTICE;
83 else if(act == "noticeopers")
84 action = IBLOCK_NOTICEOPERS;
85 else if(act == "silent")
86 action = IBLOCK_SILENT;
87 else if(act == "kill")
90 action = IBLOCK_KILLOPERS;
93 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, User *user, bool validated, const std::string &original_line)
95 // Don't do anything with unregistered users, or remote ones.
96 if(!user || (user->registered != REG_ALL) || !IS_LOCAL(user))
99 // We want case insensitive command comparison.
100 // Add std::string contructor for irc::string :x
101 irc::string cmd = command.c_str();
103 if(validated && (cmd == "PRIVMSG" || cmd == "NOTICE") && (pcnt >= 2))
105 // parameters[0] should have the target(s) in it.
106 // I think it will be faster to first check if there are any commas, and if there are then try and parse it out.
107 // Most messages have a single target so...
112 if(*parameters[0] != '#')
114 // Decrement if the first target wasn't a channel.
118 for(const char* c = parameters[0]; *c; c++)
119 if((*c == ',') && *(c+1) && (*(c+1) == '#'))
122 /* targets should now contain the number of channel targets the msg/notice was pointed at.
123 * If the msg/notice was a PM there should be no channel targets and 'targets' should = 0.
124 * We don't want to block PMs so...
131 userchans = user->chans.size();
133 // Check that this message wasn't already sent within a few seconds.
135 user->GetExt("amsgblock", m);
137 // If the message is identical and within the time.
138 // We check the target is *not* identical, that'd straying into the realms of flood control. Which isn't what we're doing...
140 // The number of target channels is equal to the number of channels the sender is on..a little suspicious.
141 // Check it's more than 1 too, or else users on one channel would have fun.
142 if((m && (m->message == parameters[1]) && (m->target != parameters[0]) && (ForgetDelay != -1) && (m->sent >= ServerInstance->Time()-ForgetDelay)) || ((targets > 1) && (targets == userchans)))
145 if(action == IBLOCK_KILLOPERS || action == IBLOCK_NOTICEOPERS)
146 ServerInstance->WriteOpers("*** %s had an /amsg or /ame denied", user->nick);
148 if(action == IBLOCK_KILL || action == IBLOCK_KILLOPERS)
149 User::QuitUser(ServerInstance, user, "Global message (/amsg or /ame) detected");
150 else if(action == IBLOCK_NOTICE || action == IBLOCK_NOTICEOPERS)
151 user->WriteServ( "NOTICE %s :Global message (/amsg or /ame) detected", user->nick);
158 // If there's already a BlockedMessage allocated, use it.
159 m->message = parameters[1];
160 m->target = parameters[0];
161 m->sent = ServerInstance->Time();
165 m = new BlockedMessage(parameters[1], parameters[0], ServerInstance->Time());
166 user->Extend("amsgblock", (char*)m);
172 void OnCleanup(int target_type, void* item)
174 if(target_type == TYPE_USER)
176 User* user = (User*)item;
178 user->GetExt("amsgblock", m);
182 user->Shrink("amsgblock");
189 MODULE_INIT(ModuleBlockAmsg)