1 files changed, 183 insertions, 0 deletions
diff --git a/src/modules/m_rline.cpp b/src/modules/m_rline.cpp
new file mode 100644
index 000000000..6cae0badf
--- /dev/null
+++ b/src/modules/m_rline.cpp
@@ -0,0 +1,183 @@
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2007 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.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "inspircd.h"
+#include <pcre.h>
+#include "users.h"
+#include "channels.h"
+#include "modules.h"
+#include "m_filter.h"
+
+/* $ModDesc: m_filter with regexps */
+/* $CompileFlags: exec("pcre-config --cflags") */
+/* $LinkerFlags: exec("pcre-config --libs") rpath("pcre-config --libs") -lpcre */
+/* $ModDep: m_filter.h */
+
+#ifdef WINDOWS
+#pragma comment(lib, "pcre.lib")
+#endif
+
+class PCREFilter : public FilterResult
+{
+ public:
+	 pcre* regexp;
+
+	 PCREFilter(pcre* r, const std::string &rea, const std::string &act, long gline_time, const std::string &pat, const std::string &flags)
+		 : FilterResult(pat, rea, act, gline_time, flags), regexp(r)
+	 {
+	 }
+
+	 PCREFilter()
+	 {
+	 }
+};
+
+class ModuleFilterPCRE : public FilterBase
+{
+	std::vector<PCREFilter> filters;
+	pcre *re;
+	const char *error;
+	int erroffset;
+	PCREFilter fr;
+
+ public:
+	ModuleFilterPCRE(InspIRCd* Me)
+	: FilterBase(Me, "m_filter_pcre.so")
+	{
+		OnRehash(NULL,"");
+
+	}
+
+	virtual ~ModuleFilterPCRE()
+	{
+	}
+
+	virtual FilterResult* FilterMatch(User* user, const std::string &text, int flags)
+	{
+		for (std::vector<PCREFilter>::iterator index = filters.begin(); index != filters.end(); index++)
+		{
+			/* Skip ones that dont apply to us */
+
+			if (!FilterBase::AppliesToMe(user, dynamic_cast<FilterResult*>(&(*index)), flags))
+				continue;
+
+			if (pcre_exec(index->regexp, NULL, text.c_str(), text.length(), 0, 0, NULL, 0) > -1)
+			{
+				fr = *index;
+				if (index != filters.begin())
+				{
+					filters.erase(index);
+					filters.insert(filters.begin(), fr);
+				}
+				return &fr;
+			}
+		}
+		return NULL;
+	}
+
+	virtual bool DeleteFilter(const std::string &freeform)
+	{
+		for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
+		{
+			if (i->freeform == freeform)
+			{
+				pcre_free((*i).regexp);
+				filters.erase(i);
+				return true;
+			}
+		}
+		return false;
+	}
+
+	virtual void SyncFilters(Module* proto, void* opaque)
+	{
+		for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
+		{
+			this->SendFilter(proto, opaque, &(*i));
+		}
+	}
+
+	virtual std::pair<bool, std::string> AddFilter(const std::string &freeform, const std::string &type, const std::string &reason, long duration, const std::string &flags)
+	{
+		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, flags));
+			return std::make_pair(true, "");
+		}
+	}
+
+	virtual void OnRehash(User* user, const std::string &parameter)
+	{		
+		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);
+			std::string flags = MyConf.ReadValue("keyword", "flags", index);
+			long gline_time = ServerInstance->Duration(MyConf.ReadValue("keyword", "duration", index));
+			if (action.empty())
+				action = "none";
+			if (flags.empty())
+				flags = "*";
+
+			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, flags));
+				ServerInstance->Log(DEFAULT,"Regular expression %s loaded.", pattern.c_str());
+			}
+		}
+	}
+
+	virtual int OnStats(char symbol, User* user, string_list &results)
+	{
+		if (symbol == 's')
+		{
+			std::string sn = ServerInstance->Config->ServerName;
+			for (std::vector<PCREFilter>::iterator i = filters.begin(); i != filters.end(); i++)
+			{
+				results.push_back(sn+" 223 "+user->nick+" :REGEXP:"+i->freeform+" "+i->flags+" "+i->action+" "+ConvToStr(i->gline_time)+" :"+i->reason);
+			}
+		}
+		return 0;
+	}
+};
+
+MODULE_INIT(ModuleFilterPCRE)
+