]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_rline.cpp
Fix the 'i/o error on connection (no error)' stuff, by displaying 'connected closed...
[user/henk/code/inspircd.git] / src / modules / m_rline.cpp
index 7397beebd1483b3ecc2d6edb51abfea047cad79c..e6340cc0f56c38273eb1085533754f16e02ea86d 100644 (file)
@@ -2,30 +2,27 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ *  InspIRCd: (C) 2002-2008 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.
+ *            the file COPYING for details.
  *
  * ---------------------------------------------------
  */
 
 #include "inspircd.h"
-#include <pcre.h>
+#include "m_regex.h"
 #include "xline.h"
 
-/* $ModDesc: RLINE: Regexp user banning. */
-/* $CompileFlags: exec("pcre-config --cflags") */
-/* $LinkerFlags: exec("pcre-config --libs") rpath("pcre-config --libs") -lpcre */
+static Module* rxengine = 0;
+static Module* mymodule = 0; /* Needed to let RLine send request! */
 
-#ifdef WINDOWS
-#pragma comment(lib, "pcre.lib")
-#endif
+/* $ModDesc: RLINE: Regexp user banning. */
 
 class CoreExport RLine : public XLine
 {
 public:
+ public:
 
        /** Create a R-Line.
         * @param s_time The set time
@@ -35,19 +32,21 @@ class CoreExport RLine : public XLine
         * @param regex Pattern to match with
         * @
         */
-       RLine(InspIRCd* Instance, time_t s_time, long d, const char* src, const char* re, const char* regexs) : XLine(Instance, s_time, d, src, re, "K")
+       RLine(InspIRCd* Instance, time_t s_time, long d, const char* src, const char* re, const char* regexs) : XLine(Instance, s_time, d, src, re, "R")
        {
-               const char *error;
-               int erroffset;
-
                matchtext = regexs;
 
-               regex = pcre_compile(regexs, 0, &error, &erroffset, NULL);
-
-               if (!regex)
+               if (!rxengine)
                {
-                       ServerInstance->SNO->WriteToSnoMask('x',"Error in regular expression: %s at offset %d: %s\n", regexs, erroffset, error);
-                       throw CoreException("Bad regex pattern.");
+                       ServerInstance->SNO->WriteToSnoMask('x', "Cannot create regexes until engine is set to a loaded provider!");
+                       throw ModuleException("Regex engine not set or loaded!");
+               }
+
+               try {
+                       regex = RegexFactoryRequest(mymodule, rxengine, regexs).Create();
+               } catch (ModuleException& ex) {
+                       ServerInstance->SNO->WriteToSnoMask('x', "Bad regex: %s", ex.GetReason());
+                       throw;
                }
        }
 
@@ -55,16 +54,16 @@ class CoreExport RLine : public XLine
         */
        ~RLine()
        {
-               pcre_free(regex);
+               delete regex;
        }
 
-       virtual bool Matches(User *u)
+       bool Matches(User *u)
        {
-               std::string compare = compare.assign(u->nick) + "!" + u->ident + "@" + u->host + " " + u->fullname;
+               std::string compare = std::string(u->nick) + "!" + u->ident + "@" + u->host + " " + u->fullname;
 
-               ServerInstance->Log(DEBUG, "Matching " + matchtext + " against string " + compare);
+               ServerInstance->Logs->Log("m_rline",DEBUG, "Matching " + matchtext + " against string " + compare);
 
-               if (pcre_exec(regex, NULL, compare.c_str(), compare.length(), 0, 0, NULL, 0) > -1)
+               if (regex->Matches(compare))
                {
                        // Bang. :D
                        return true;
@@ -73,26 +72,35 @@ class CoreExport RLine : public XLine
                return false;
        }
 
-       virtual bool Matches(const std::string&); // Ignored for us
+       bool Matches(const std::string &compare)
+       {
+               if (regex->Matches(compare))
+               {
+                       // Bang. :D
+                       return true;
+               }
 
-       virtual void Apply(User* u)
+               return false;
+       }
+
+       void Apply(User* u)
        {
                DefaultApply(u, "R", true);
        }
 
-       virtual void DisplayExpiry()
+       void DisplayExpiry()
        {
-               ServerInstance->SNO->WriteToSnoMask('x',"Expiring timed R-Line %s (set by %s %d seconds ago)", this->matchtext.c_str(), this->source, this->duration);
+               ServerInstance->SNO->WriteToSnoMask('x',"Expiring timed R-Line %s (set by %s %ld seconds ago)", this->matchtext.c_str(), this->source, this->duration);
        }
 
-       virtual const char* Displayable()
+       const char* Displayable()
        {
                return matchtext.c_str();
        }
 
        std::string matchtext;
 
-       pcre *regex;
+       Regex *regex;
 };
 
 
@@ -101,90 +109,206 @@ class CoreExport RLine : public XLine
 class CoreExport RLineFactory : public XLineFactory
 {
  public:
-        RLineFactory(InspIRCd* Instance) : XLineFactory(Instance, "R") { }
+       RLineFactory(InspIRCd* Instance) : XLineFactory(Instance, "R") { }
 
        /** Generate a RLine
         */
-        XLine* Generate(time_t set_time, long duration, const char* source, const char* reason, const char* xline_specific_mask)
-        {
-                return new RLine(ServerInstance, set_time, duration, source, reason, xline_specific_mask);
-        }
+       XLine* Generate(time_t set_time, long duration, const char* source, const char* reason, const char* xline_specific_mask)
+       {
+               return new RLine(ServerInstance, set_time, duration, source, reason, xline_specific_mask);
+       }
 };
 
-/*
-       if (pcnt >= 3)
+/** Handle /RLINE
+ * Syntax is same as other lines: RLINE regex_goes_here 1d :reason
+ */
+class CommandRLine : public Command
+{
+       std::string rxengine;
+
+ public:
+       CommandRLine (InspIRCd* Instance) : Command(Instance,"RLINE", "o", 1)
        {
-               IdentHostPair ih;
-               User* find = ServerInstance->FindNick(parameters[0]);
-               if (find)
-               {
-                       ih.first = "*";
-                       ih.second = find->GetIPString();
-               }
-               else
-                       ih = ServerInstance->XLines->IdentSplit(parameters[0]);
+               this->source = "m_rline.so";
+       }
 
-               if (ServerInstance->HostMatchesEveryone(ih.first+"@"+ih.second,user))
-                       return CMD_FAILURE;
+       CmdResult Handle (const std::vector<std::string>& parameters, User *user)
+       {
 
-               if (!strchr(parameters[0],'@'))
-               {       
-                       user->WriteServ("NOTICE %s :*** G-Line must contain a username, e.g. *@%s",user->nick,parameters[0]);
-                       return CMD_FAILURE;
-               }
-               else if (strchr(parameters[0],'!'))
+               if (parameters.size() >= 3)
                {
-                       user->WriteServ("NOTICE %s :*** G-Line cannot contain a nickname!",user->nick);
-                       return CMD_FAILURE;
-               }
+                       // Adding - XXX todo make this respect <insane> tag perhaps..
 
-               long duration = ServerInstance->Duration(parameters[1]);
-               GLine* gl = new GLine(ServerInstance, ServerInstance->Time(), duration, user->nick, parameters[2], ih.first.c_str(), ih.second.c_str());
-               if (ServerInstance->XLines->AddLine(gl, user))
-               {
-                       if (!duration)
+                       long duration = ServerInstance->Duration(parameters[1]);
+                       RLine *r = NULL;
+
+                       try
                        {
-                               ServerInstance->SNO->WriteToSnoMask('x',"%s added permanent G-line for %s.",user->nick,parameters[0]);
+                               r = new RLine(ServerInstance, ServerInstance->Time(), duration, user->nick.c_str(), parameters[2].c_str(), parameters[0].c_str());
                        }
-                       else
+                       catch (...)
                        {
-                               time_t c_requires_crap = duration + ServerInstance->Time();
-                               ServerInstance->SNO->WriteToSnoMask('x',"%s added timed G-line for %s, expires on %s",user->nick,parameters[0],
-                                               ServerInstance->TimeString(c_requires_crap).c_str());
+                               ; // Do nothing. If we get here, the regex was fucked up, and they already got told it fucked up.
                        }
 
-                       ServerInstance->XLines->ApplyLines();
+                       if (r)
+                       {
+                               if (ServerInstance->XLines->AddLine(r, user))
+                               {
+                                       if (!duration)
+                                       {
+                                               ServerInstance->SNO->WriteToSnoMask('x',"%s added permanent R-Line for %s.", user->nick.c_str(), parameters[0].c_str());
+                                       }
+                                       else
+                                       {
+                                               time_t c_requires_crap = duration + ServerInstance->Time();
+                                               ServerInstance->SNO->WriteToSnoMask('x', "%s added timed R-Line for %s, expires on %s", user->nick.c_str(), parameters[0].c_str(),
+                                                               ServerInstance->TimeString(c_requires_crap).c_str());
+                                       }
+
+                                       ServerInstance->XLines->ApplyLines();
+                               }
+                               else
+                               {
+                                       delete r;
+                                       user->WriteServ("NOTICE %s :*** R-Line for %s already exists", user->nick.c_str(), parameters[0].c_str());
+                               }
+                       }
                }
                else
                {
-                       delete gl;
-                       user->WriteServ("NOTICE %s :*** G-Line for %s already exists",user->nick,parameters[0]);
+                       if (ServerInstance->XLines->DelLine(parameters[0].c_str(), "R", user))
+                       {
+                               ServerInstance->SNO->WriteToSnoMask('x',"%s Removed R-Line on %s.",user->nick.c_str(),parameters[0].c_str());
+                       }
+                       else
+                       {
+                               // XXX todo implement stats
+                               user->WriteServ("NOTICE %s :*** R-Line %s not found in list, try /stats g.",user->nick.c_str(),parameters[0].c_str());
+                       }
                }
 
+               return CMD_SUCCESS;
+       }
+};
+
+class ModuleRLine : public Module
+{
+ private:
+       CommandRLine *r;
+       RLineFactory *f;
+       bool MatchOnNickChange;
+       std::string RegexEngine;
+
+ public:
+       ModuleRLine(InspIRCd* Me) : Module(Me)
+       {
+               mymodule = this;
+               OnRehash(NULL, "");
+
+               Me->Modules->UseInterface("RegularExpression");
+
+               // Create a new command
+               r = new CommandRLine(ServerInstance);
+               ServerInstance->AddCommand(r);
+
+               f = new RLineFactory(ServerInstance);
+               ServerInstance->XLines->RegisterFactory(f);
+
+               Implementation eventlist[] = { I_OnUserConnect, I_OnRehash, I_OnUserPostNick, I_OnLoadModule };
+               ServerInstance->Modules->Attach(eventlist, this, 3);
+
+       }
+
+       virtual ~ModuleRLine()
+       {
+               ServerInstance->Modules->DoneWithInterface("RegularExpression");
+               ServerInstance->XLines->DelAll("R");
+               ServerInstance->XLines->UnregisterFactory(f);
        }
-       else
+
+       virtual Version GetVersion()
        {
-               if (ServerInstance->XLines->DelLine(parameters[0],"G",user))
+               return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
+       }
+
+       virtual void OnUserConnect(User* user)
+       {
+               // Apply lines on user connect
+               XLine *rl = ServerInstance->XLines->MatchesLine("R", user);
+
+               if (rl)
                {
-                       ServerInstance->SNO->WriteToSnoMask('x',"%s Removed G-line on %s.",user->nick,parameters[0]);
+                       // Bang. :P
+                       rl->Apply(user);
                }
-               else
+       }
+
+       virtual void OnRehash(User *user, const std::string &parameter)
+       {
+               ConfigReader Conf(ServerInstance);
+
+               MatchOnNickChange = Conf.ReadFlag("rline", "matchonnickchange", 0);
+
+               std::string newrxengine;
+
+               newrxengine = Conf.ReadValue("rline", "engine", 0);
+
+               if (!RegexEngine.empty())
+               {
+                       if (RegexEngine == newrxengine)
+                               return;
+                       ServerInstance->SNO->WriteToSnoMask('x', "Dumping all R-Lines due to regex engine change (was '%s', now '%s')", RegexEngine.c_str(), newrxengine.c_str());
+                       ServerInstance->XLines->DelAll("R");
+               }
+               rxengine = 0;
+               RegexEngine = newrxengine;
+               modulelist* ml = ServerInstance->Modules->FindInterface("RegularExpression");
+               for (modulelist::iterator i = ml->begin(); i != ml->end(); ++i)
                {
-                       user->WriteServ("NOTICE %s :*** G-line %s not found in list, try /stats g.",user->nick,parameters[0]);
+                       std::string rxname = RegexNameRequest(this, *i).Send();
+                       if (rxname == newrxengine)
+                       {
+                               ServerInstance->SNO->WriteToSnoMask('x', "R-Line now using engine '%s'", RegexEngine.c_str());
+                               rxengine = *i;
+                       }
+               }
+               if (!rxengine)
+               {
+                       ServerInstance->SNO->WriteToSnoMask('x', "WARNING: Regex engine '%s' is not loaded - R-Line functionality disabled until this is corrected.", RegexEngine.c_str());
                }
        }
-*/
 
-class ModuleRLine : public Module
-{
- public:
-       ModuleRLine(InspIRCd* Me) : Module(Me)
+       virtual void OnLoadModule(Module* mod, const std::string& name)
        {
+               if (ServerInstance->Modules->ModuleHasInterface(mod, "RegularExpression"))
+               {
+                       std::string rxname = RegexNameRequest(this, mod).Send();
+                       if (rxname == RegexEngine)
+                       {
+                               ServerInstance->SNO->WriteToSnoMask('x', "R-Line now using engine '%s'", RegexEngine.c_str());
+                               rxengine = mod;
+                       }
+               }
        }
 
-       virtual ~ModuleRLine()
+       virtual void OnUserPostNick(User *user, const std::string &oldnick)
        {
+               if (!IS_LOCAL(user))
+                       return;
+
+               if (!MatchOnNickChange)
+                       return;
+
+               XLine *rl = ServerInstance->XLines->MatchesLine("R", user);
+
+               if (rl)
+               {
+                       // Bang! :D
+                       rl->Apply(user);
+               }
        }
+
 };
 
 MODULE_INIT(ModuleRLine)