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-rw-r--r--src/modules/m_blockamsg.cpp202
1 files changed, 202 insertions, 0 deletions
diff --git a/src/modules/m_blockamsg.cpp b/src/modules/m_blockamsg.cpp
new file mode 100644
index 000000000..a0ec7b584
--- /dev/null
+++ b/src/modules/m_blockamsg.cpp
@@ -0,0 +1,202 @@
+/* +------------------------------------+
+ * | Inspire Internet Relay Chat Daemon |
+ * +------------------------------------+
+ *
+ * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
+ * E-mail:
+ * <brain@chatspike.net>
+ * <Craig@chatspike.net>
+ * <omster@gmail.com>
+ *
+ * Written by Craig Edwards, Craig McLure, and others.
+ * This program is free but copyrighted software; see
+ * the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+#include <string>
+#include <time.h>
+#include "inspircd_config.h"
+#include "users.h"
+#include "channels.h"
+#include "modules.h"
+#include "helperfuncs.h"
+#include "hashcomp.h"
+
+/* $ModDesc: Attempt to block /amsg, at least some of the irritating mIRC scripts. */
+
+extern time_t TIME;
+
+enum BlockAction { IBLOCK_KILL, IBLOCK_KILLOPERS, IBLOCK_NOTICE, IBLOCK_NOTICEOPERS, IBLOCK_SILENT };
+
+class BlockedMessage
+{
+public:
+ std::string message;
+ irc::string target;
+ time_t sent;
+
+ BlockedMessage(std::string msg, irc::string tgt, time_t when) : message(msg), target(tgt), sent(when)
+ {
+ }
+};
+
+class ModuleBlockAmsg : public Module
+{
+ Server* Srv;
+ int ForgetDelay;
+ BlockAction action;
+public:
+ ModuleBlockAmsg(Server* Me) : Module::Module(Me)
+ {
+ Srv = Me;
+ this->OnRehash("");
+ }
+
+ void Implements(char* List)
+ {
+ List[I_OnRehash] = List[I_OnPreCommand] = List[I_OnCleanup] = 1;
+ }
+
+ virtual ~ModuleBlockAmsg()
+ {
+ }
+
+ virtual Version GetVersion()
+ {
+ return Version(1,0,0,0,VF_VENDOR);
+ }
+
+ virtual void OnRehash(std::string parameter)
+ {
+ ConfigReader* Conf = new ConfigReader;
+
+ ForgetDelay = Conf->ReadInteger("blockamsg", "delay", 0, false);
+ if(Conf->GetError() == CONF_VALUE_NOT_FOUND)
+ ForgetDelay = -1;
+
+ std::string act = Conf->ReadValue("blockamsg", "action", 0);
+
+ if(act == "notice")
+ action = IBLOCK_NOTICE;
+ else if(act == "noticeopers")
+ action = IBLOCK_NOTICEOPERS;
+ else if(act == "silent")
+ action = IBLOCK_SILENT;
+ else if(act == "kill")
+ action = IBLOCK_KILL;
+ else
+ action = IBLOCK_KILLOPERS;
+
+ delete Conf;
+ }
+
+ virtual int OnPreCommand(std::string command, char **parameters, int pcnt, userrec *user, bool validated)
+ {
+ // Don't do anything with unregistered users, or remote ones.
+ if(!user || (user->registered != 7) || !IS_LOCAL(user))
+ return 0;
+
+ // We want case insensitive command comparison.
+ // Add std::string contructor for irc::string :x
+ irc::string cmd = command.c_str();
+
+ if(validated && (cmd == "PRIVMSG" || cmd == "NOTICE") && (pcnt >= 2))
+ {
+ // parameters[0] should have the target(s) in it.
+ // I think it will be faster to first check if there are any commas, and if there are then try and parse it out.
+ // Most messages have a single target so...
+
+ int targets = 1;
+ int userchans = 0;
+
+ // Decrement if the first target wasn't a channel.
+ if(*parameters[0] != '#')
+ targets--;
+
+ for(char* c = parameters[0]; *c; c++)
+ if((*c == ',') && *(c+1) && (*(c+1) == '#'))
+ targets++;
+
+ for(unsigned int i = 0; i < user->chans.size(); i++)
+ if(user->chans[i].channel)
+ userchans++;
+
+ // Check that this message wasn't already sent within a few seconds.
+ BlockedMessage* m = (BlockedMessage*)user->GetExt("amsgblock");
+
+ // If the message is identical and within the time.
+ // We check the target is *not* identical, that'd straying into the realms of flood control. Which isn't what we're doing...
+ // OR
+ // The number of target channels is equal to the number of channels the sender is on..a little suspicious.
+ // Check it's more than 1 too, or else users on one channel would have fun.
+ if((m && (m->message == parameters[1]) && (m->target != parameters[0]) && (ForgetDelay != -1) && (m->sent >= TIME-ForgetDelay)) || ((targets > 1) && (targets == userchans)))
+ {
+ // Block it...
+ if(action == IBLOCK_KILLOPERS || action == IBLOCK_NOTICEOPERS)
+ WriteOpers("*** %s had an /amsg or /ame denied", user->nick);
+
+ if(action == IBLOCK_KILL || action == IBLOCK_KILLOPERS)
+ Srv->QuitUser(user, "Global message (/amsg or /ame) detected");
+ else if(action == IBLOCK_NOTICE || action == IBLOCK_NOTICEOPERS)
+ WriteServ(user->fd, "NOTICE %s :Global message (/amsg or /ame) detected", user->nick);
+
+ return 1;
+ }
+
+ if(m)
+ {
+ // If there's already a BlockedMessage allocated, use it.
+ m->message = parameters[1];
+ m->target = parameters[0];
+ m->sent = TIME;
+ }
+ else
+ {
+ m = new BlockedMessage(parameters[1], parameters[0], TIME);
+ user->Extend("amsgblock", (char*)m);
+ }
+ }
+ return 0;
+ }
+
+ void OnCleanup(int target_type, void* item)
+ {
+ if(target_type == TYPE_USER)
+ {
+ userrec* user = (userrec*)item;
+ BlockedMessage* m = (BlockedMessage*)user->GetExt("amsgblock");
+ if(m)
+ {
+ delete m;
+ user->Shrink("amsgblock");
+ }
+ }
+ }
+};
+
+
+class ModuleBlockAmsgFactory : public ModuleFactory
+{
+ public:
+ ModuleBlockAmsgFactory()
+ {
+ }
+
+ ~ModuleBlockAmsgFactory()
+ {
+ }
+
+ virtual Module * CreateModule(Server* Me)
+ {
+ return new ModuleBlockAmsg(Me);
+ }
+};
+
+
+extern "C" void * init_module( void )
+{
+ return new ModuleBlockAmsgFactory;
+}
+