Framework for central regex module, and a bare-bone implementation based on InspIRCd::Match().

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@10395 e03df62e-2008-0410-955e-edbf42e46eb7

2 files changed, 129 insertions, 0 deletions

diff --git a/src/modules/extra/m_regex.h b/src/modules/extra/m_regex.h
new file mode 100644
index 000000000..361d54831
--- /dev/null
+++ b/src/modules/extra/m_regex.h
@@ -0,0 +1,63 @@
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  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.
+ *
+ * ---------------------------------------------------
+ */
+
+#ifndef _REGEX_H
+#define _REGEX_H
+
+#include "inspircd.h"
+
+class Regex : public classbase
+{
+protected:
+	std::string regex_string; // The raw uncompiled regex string.
+	InspIRCd* ServerInstance;
+
+	// Constructor may as well be protected, as this class is abstract.
+	Regex(const std::string& rx, InspIRCd* Me) : regex_string(rx), ServerInstance(Me)
+	{
+	}
+
+public:
+
+	virtual ~Regex()
+	{
+	}
+
+	virtual bool Matches(const std::string& text) = 0;
+};
+
+class RegexFactoryRequest : public Request
+{
+private:
+	std::string regex;
+
+public:
+	RegexFactoryRequest(Module* Me, Module* Target, const std::string& rx) : Request(Me, Target, "REGEX"), regex(rx)
+	{
+	}
+
+	const std::string& GetRegex() const
+	{
+		return regex;
+	}
+};
+
+class RegexNameRequest : public Request
+{
+public:
+	RegexNameRequest(Module* Me, Module* Target) : Request(Me, Target, "REGEX-NAME")
+	{
+	}
+};
+
+#endif
diff --git a/src/modules/extra/m_regex_glob.cpp b/src/modules/extra/m_regex_glob.cpp
new file mode 100644
index 000000000..8d81b9a03
--- /dev/null
+++ b/src/modules/extra/m_regex_glob.cpp
@@ -0,0 +1,66 @@
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  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.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "m_regex.h"
+#include "inspircd.h"
+
+/* $ModDesc: Regex module using plain wildcard matching. */
+/* $ModDep: m_regex.h */
+
+class GlobRegex : public Regex
+{
+public:
+	GlobRegex(const std::string& rx, InspIRCd* Me) : Regex(rx, Me)
+	{
+	}
+
+	virtual ~GlobRegex()
+	{
+	}
+
+	virtual bool Matches(const std::string& text)
+	{
+		return InspIRCd::Match(this->regex_string, text);
+	}
+};
+
+class ModuleRegexGlob : public Module
+{
+public:
+	ModuleRegexGlob(InspIRCd* Me) : Module(Me)
+	{
+		Me->Modules->PublishInterface("RegularExpression", this);
+		Implementation eventlist[] = { I_OnRequest };
+		Me->Modules->Attach(eventlist, this, 1);
+	}
+
+	virtual ~ModuleRegexGlob()
+	{
+		ServerInstance->Modules->UnpublishInterface("RegularExpression", this);
+	}
+
+	virtual const char* OnRequest(Request* request)
+	{
+		if (strcmp("REGEX-NAME", request->GetId()) == 0)
+		{
+			return "glob";
+		}
+		else if (strcmp("REGEX", request->GetId()) == 0)
+		{
+			RegexFactoryRequest* rfr = (RegexFactoryRequest*)request;
+			std::string rx = rfr->GetRegex();
+			Regex* rxo = (Regex*)new GlobRegex(rx, ServerInstance); // Cast to base class first, since theoretically the pointer could change by that.
+			return (const char*)(rxo);
+		}
+	}
+};