* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
+ * InspIRCd is copyright (C) 2002-2004 ChatSpike-Dev.
* E-mail:
* <brain@chatspike.net>
* <Craig@chatspike.net>
* ---------------------------------------------------
*/
-using namespace std;
-
// Message and notice filtering using regex patterns
// a module based on the original work done by Craig Edwards in 2003
// for the chatspike network.
#include "users.h"
#include "channels.h"
#include "modules.h"
-#include "helperfuncs.h"
+#include "inspircd.h"
+#include "m_filter.h"
/* $ModDesc: m_filter with regexps */
-/* $CompileFlags: -I/usr/local/include -L/usr/local/lib -lpcre */
+/* $CompileFlags: `pcre-config --cflags` */
+/* $LinkerFlags: `pcre-config --libs` `perl extra/pcre_rpath.pl` -lpcre */
+/* $ModDep: m_filter.h */
+
+class PCREFilter : public FilterResult
+{
+ public:
+ pcre* regexp;
-class ModuleFilterPCRE : public Module
+ PCREFilter(pcre* r, const std::string &rea, const std::string &act, long gline_time, const std::string &pat)
+ : FilterResult::FilterResult(pat, rea, act, gline_time), regexp(r)
+ {
+ }
+};
+
+class ModuleFilterPCRE : public FilterBase
{
- Server *Srv;
- ConfigReader *Conf, *MyConf;
- std::vector<pcre*> filters;
+ std::vector<PCREFilter> filters;
pcre *re;
const char *error;
int erroffset;
-
+
public:
- ModuleFilterPCRE(Server* Me)
- : Module::Module(Me)
+ ModuleFilterPCRE(InspIRCd* Me)
+ : FilterBase::FilterBase(Me, "m_filter_pcre.so")
{
- // read the configuration file on startup.
- // it is perfectly valid to set <filter file> to the value of the
- // main config file, then append your <keyword> tags to the bottom
- // of the main config... but rather messy. That's why the capability
- // of using a seperate config file is provided.
- Srv = Me;
- Conf = new ConfigReader;
- std::string filterfile = Conf->ReadValue("filter","file",0);
- MyConf = new ConfigReader(filterfile);
- if ((filterfile == "") || (!MyConf->Verify()))
- {
- printf("Error, could not find <filter file=\"\"> definition in your config file!\n");
- log(DEFAULT,"Error, could not find <filter file=\"\"> definition in your config file!");
- return;
- }
- Srv->Log(DEFAULT,std::string("m_filter_pcre: read configuration from ")+filterfile);
-
- filters.clear();
- for (int index = 0; index < MyConf->Enumerate("keyword"); index++)
- {
- std::string pattern = MyConf->ReadValue("keyword","pattern",index);
- re = pcre_compile(pattern.c_str(),0,&error,&erroffset,NULL);
- if (!re)
- {
- log(DEFAULT,"Error in regular expression: %s at offset %d: %s\n", pattern.c_str(), erroffset, error);
- log(DEFAULT,"Regular expression %s not loaded.", pattern.c_str());
- }
- else
- {
- filters.push_back(re);
- log(DEFAULT,"Regular expression %s loaded.", pattern.c_str());
- }
- }
-
+ OnRehash("");
}
-
+
virtual ~ModuleFilterPCRE()
{
- delete MyConf;
- delete Conf;
}
-
- // format of a config entry is <keyword pattern="^regexp$" reason="Some reason here" action="kill/block">
-
- virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text)
+
+ virtual FilterResult* FilterMatch(const std::string &text)
{
for (unsigned int index = 0; index < filters.size(); index++)
{
- if (pcre_exec(filters[index],NULL,text.c_str(),text.length(),0,0,NULL,0) > -1)
+ PCREFilter& filt = filters[index];
+
+ if (pcre_exec(filt.regexp,NULL,text.c_str(),text.length(),0,0,NULL,0) > -1)
{
- std::string target = "";
- std::string reason = MyConf->ReadValue("keyword","reason",index);
- std::string do_action = MyConf->ReadValue("keyword","action",index);
-
- if (do_action == "")
- do_action = "none";
-
- if (target_type == TYPE_USER)
- {
- userrec* t = (userrec*)dest;
- target = std::string(t->nick);
- }
- else if (target_type == TYPE_CHANNEL)
- {
- chanrec* t = (chanrec*)dest;
- target = std::string(t->name);
- }
- if (do_action == "block")
- {
- Srv->SendOpers(std::string("FilterPCRE: ")+std::string(user->nick)+
- std::string(" had their message filtered, target was ")+
- target+": "+reason);
- // this form of SendTo (with the source as NuLL) sends a server notice
- Srv->SendTo(NULL,user,"NOTICE "+std::string(user->nick)+
- " :Your message has been filtered and opers notified: "+reason);
- }
-
- Srv->Log(DEFAULT,std::string("Filter: ")+std::string(user->nick)+
- std::string(" had their message filtered, target was ")+
- target+": "+reason+" Action: "+do_action);
-
- if (do_action == "kill")
- {
- Srv->QuitUser(user,reason);
- }
- return 1;
+ return &filt;
}
}
- return 0;
+ return NULL;
}
-
- virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text)
+
+ virtual bool DeleteFilter(const std::string &freeform)
{
- for (unsigned int index = 0; index < filters.size(); index++)
+ for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
{
- if (pcre_exec(filters[index],NULL,text.c_str(),text.length(),0,0,NULL,0) > -1)
+ if (i->freeform == freeform)
{
- std::string target = "";
- std::string reason = MyConf->ReadValue("keyword","reason",index);
- std::string do_action = MyConf->ReadValue("keyword","action",index);
-
- if (do_action == "")
- do_action = "none";
-
- if (target_type == TYPE_USER)
- {
- userrec* t = (userrec*)dest;
- target = std::string(t->nick);
- }
- else if (target_type == TYPE_CHANNEL)
- {
- chanrec* t = (chanrec*)dest;
- target = std::string(t->name);
- }
- if (do_action == "block")
- {
- Srv->SendOpers(std::string("Filter: ")+std::string(user->nick)+
- std::string(" had their notice filtered, target was ")+
- target+": "+reason);
- Srv->SendTo(NULL,user,"NOTICE "+std::string(user->nick)+
- " :Your notice has been filtered and opers notified: "+reason);
- }
- Srv->Log(DEFAULT,std::string("Filter: ")+std::string(user->nick)+
- std::string(" had their notice filtered, target was ")+
- target+": "+reason+" Action: "+do_action);
-
- if (do_action == "kill")
- {
- Srv->QuitUser(user,reason);
- }
- return 1;
+ pcre_free((*i).regexp);
+ filters.erase(i);
+ return true;
}
}
- return 0;
+ return false;
}
-
- virtual void OnRehash(std::string parameter)
+
+ virtual void SyncFilters(Module* proto, void* opaque)
{
- // reload our config file on rehash - we must destroy and re-allocate the classes
- // to call the constructor again and re-read our data.
- delete Conf;
- delete MyConf;
- Conf = new ConfigReader;
- std::string filterfile = Conf->ReadValue("filter","file",0);
- // this automatically re-reads the configuration file into the class
- MyConf = new ConfigReader(filterfile);
- if ((filterfile == "") || (!MyConf->Verify()))
+ for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
{
- // bail if the user forgot to create a config file
- printf("Error, could not find <filter file=\"\"> definition in your config file!");
- log(DEFAULT,"Error, could not find <filter file=\"\"> definition in your config file!");
- return;
+ this->SendFilter(proto, opaque, &(*i));
}
- Srv->Log(DEFAULT,std::string("m_filter_pcre: read configuration from ")+filterfile);
-
- filters.clear();
- for (int index = 0; index < MyConf->Enumerate("keyword"); index++)
- {
- std::string pattern = MyConf->ReadValue("keyword","pattern",index);
- re = pcre_compile(pattern.c_str(),0,&error,&erroffset,NULL);
- if (!re)
- {
- log(DEFAULT,"Error in regular expression: %s at offset %d: %s\n", pattern.c_str(), erroffset, error);
- log(DEFAULT,"Regular expression %s not loaded.", pattern.c_str());
- }
- else
- {
- filters.push_back(re);
- log(DEFAULT,"Regular expression %s loaded.", pattern.c_str());
- }
- }
-
}
-
- virtual Version GetVersion()
+
+ virtual std::pair<bool, std::string> AddFilter(const std::string &freeform, const std::string &type, const std::string &reason, long duration)
{
- // This is version 2 because version 1.x is the unreleased unrealircd module
- return Version(3,0,0,0,VF_VENDOR);
+ for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
+ {
+ if (i->freeform == freeform)
+ {
+ return std::make_pair(false, "Filter already exists");
+ }
+ }
+
+ re = pcre_compile(freeform.c_str(),0,&error,&erroffset,NULL);
+
+ if (!re)
+ {
+ ServerInstance->Log(DEFAULT,"Error in regular expression: %s at offset %d: %s\n", freeform.c_str(), erroffset, error);
+ ServerInstance->Log(DEFAULT,"Regular expression %s not loaded.", freeform.c_str());
+ return std::make_pair(false, "Error in regular expression at offset " + ConvToStr(erroffset) + ": "+error);
+ }
+ else
+ {
+ filters.push_back(PCREFilter(re, reason, type, duration, freeform));
+ return std::make_pair(true, "");
+ }
}
-
-};
-// stuff down here is the module-factory stuff. For basic modules you can ignore this.
+ virtual void OnRehash(const std::string ¶meter)
+ {
+ ConfigReader MyConf(ServerInstance);
+
+ for (int index = 0; index < MyConf.Enumerate("keyword"); index++)
+ {
+ this->DeleteFilter(MyConf.ReadValue("keyword", "pattern", index));
+
+ std::string pattern = MyConf.ReadValue("keyword", "pattern", index);
+ std::string reason = MyConf.ReadValue("keyword", "reason", index);
+ std::string action = MyConf.ReadValue("keyword", "action", index);
+ long gline_time = ServerInstance->Duration(MyConf.ReadValue("keyword", "duration", index).c_str());
+
+ re = pcre_compile(pattern.c_str(),0,&error,&erroffset,NULL);
+
+ if (!re)
+ {
+ ServerInstance->Log(DEFAULT,"Error in regular expression: %s at offset %d: %s\n", pattern.c_str(), erroffset, error);
+ ServerInstance->Log(DEFAULT,"Regular expression %s not loaded.", pattern.c_str());
+ }
+ else
+ {
+ filters.push_back(PCREFilter(re, reason, action, gline_time, pattern));
+ ServerInstance->Log(DEFAULT,"Regular expression %s loaded.", pattern.c_str());
+ }
+ }
+ }
+};
+
class ModuleFilterPCREFactory : public ModuleFactory
{
{
}
- virtual Module * CreateModule(Server* Me)
+ virtual Module * CreateModule(InspIRCd* Me)
{
return new ModuleFilterPCRE(Me);
}
{
return new ModuleFilterPCREFactory;
}
-
projects / user / henk / code / inspircd.git / blobdiff