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authoraquanight <aquanight@e03df62e-2008-0410-955e-edbf42e46eb7>2008-09-05 19:33:49 +0000
committeraquanight <aquanight@e03df62e-2008-0410-955e-edbf42e46eb7>2008-09-05 19:33:49 +0000
commit19406833a1746871a1a8a36c30734a8d437f0ac8 (patch)
treec5dcefb155309447d32369a1696e8c325886be9f /src
parent14b198f5f6bcc5d83bdde72ea78ea70ea2133727 (diff)
POSIX regular expression provider (basic/extended controlled by <posix extended=..>).
git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@10398 e03df62e-2008-0410-955e-edbf42e46eb7
Diffstat (limited to 'src')
-rw-r--r--src/modules/extra/m_regex.h4
-rw-r--r--src/modules/extra/m_regex_posix.cpp113
2 files changed, 115 insertions, 2 deletions
diff --git a/src/modules/extra/m_regex.h b/src/modules/extra/m_regex.h
index 441d1c0df..7670582c3 100644
--- a/src/modules/extra/m_regex.h
+++ b/src/modules/extra/m_regex.h
@@ -11,8 +11,8 @@
* ---------------------------------------------------
*/
-#ifndef _REGEX_H
-#define _REGEX_H
+#ifndef _M_REGEX_H
+#define _M_REGEX_H
#include "inspircd.h"
diff --git a/src/modules/extra/m_regex_posix.cpp b/src/modules/extra/m_regex_posix.cpp
new file mode 100644
index 000000000..1a1d8e305
--- /dev/null
+++ b/src/modules/extra/m_regex_posix.cpp
@@ -0,0 +1,113 @@
+/* +------------------------------------+
+ * | 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 "inspircd.h"
+#include "m_regex.h"
+#include <sys/types.h>
+#include <regex.h>
+
+/* $ModDesc: Regex Provider Module for POSIX Regular Expressions */
+/* $ModDep: m_regex.h */
+
+class POSIXRegexException : public ModuleException
+{
+public:
+ POSIXRegexException(const std::string& rx, const std::string& error)
+ : ModuleException(std::string("Error in regex ") + rx + ": " + error)
+ {
+ }
+};
+
+class POSIXRegex : public Regex
+{
+private:
+ regex_t regbuf;
+
+public:
+ POSIXRegex(const std::string& rx, InspIRCd* Me, bool extended) : Regex(rx, Me)
+ {
+ int flags = (extended ? REG_EXTENDED : 0) | REG_NOSUB;
+ int errcode;
+ errcode = regcomp(&regbuf, rx.c_str(), flags);
+ if (errcode)
+ {
+ // Get the error string into a std::string. YUCK this involves at least 2 string copies.
+ std::string error;
+ char* errbuf;
+ size_t sz = regerror(errcode, &regbuf, NULL, 0);
+ errbuf = new char[sz + 1];
+ memset(errbuf, 0, sz + 1);
+ regerror(errcode, &regbuf, errbuf, sz + 1);
+ error = errbuf;
+ delete[] errbuf;
+ regfree(&regbuf);
+ throw POSIXRegexException(rx, error);
+ }
+ }
+
+ virtual ~POSIXRegex()
+ {
+ regfree(&regbuf);
+ }
+
+ virtual bool Matches(const std::string& text)
+ {
+ if (regexec(&regbuf, text.c_str(), 0, NULL, 0) == 0)
+ {
+ // Bang. :D
+ return true;
+ }
+ return false;
+ }
+};
+
+class ModuleRegexPOSIX : public Module
+{
+private:
+ bool extended;
+public:
+ ModuleRegexPOSIX(InspIRCd* Me) : Module(Me)
+ {
+ Me->Modules->PublishInterface("RegularExpression", this);
+ Implementation eventlist[] = { I_OnRequest, I_OnRehash };
+ Me->Modules->Attach(eventlist, this, 1);
+ OnRehash(NULL, "");
+ }
+
+ virtual ~ModuleRegexPOSIX()
+ {
+ ServerInstance->Modules->UnpublishInterface("RegularExpression", this);
+ }
+
+ virtual void OnRehash(User* u, const std::string& parameter)
+ {
+ ConfigReader Conf(ServerInstance);
+ extended = Conf.ReadFlag("posix", "extended", 0);
+ }
+
+ virtual const char* OnRequest(Request* request)
+ {
+ if (strcmp("REGEX-NAME", request->GetId()) == 0)
+ {
+ return "posix";
+ }
+ else if (strcmp("REGEX", request->GetId()) == 0)
+ {
+ RegexFactoryRequest* rfr = (RegexFactoryRequest*)request;
+ std::string rx = rfr->GetRegex();
+ rfr->result = new POSIXRegex(rx, ServerInstance, extended);
+ return "OK";
+ }
+ return NULL;
+ }
+};