1 files changed, 102 insertions, 0 deletions
diff --git a/src/modules/m_bcrypt.cpp b/src/modules/m_bcrypt.cpp
new file mode 100644
index 000000000..59ee1556c
--- /dev/null
+++ b/src/modules/m_bcrypt.cpp
@@ -0,0 +1,102 @@
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2013 Daniel Vassdal <shutter@canternet.org>
+ *
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/// $CompilerFlags: -Ivendor_directory("bcrypt")
+
+
+#include "inspircd.h"
+#include "modules/hash.h"
+
+#include <crypt_blowfish.c>
+
+class BCryptProvider : public HashProvider
+{
+ private:
+	std::string Salt()
+	{
+		char entropy[16];
+		for (unsigned int i = 0; i < sizeof(entropy); ++i)
+			entropy[i] = ServerInstance->GenRandomInt(0xFF);
+
+		char salt[32];
+		if (!_crypt_gensalt_blowfish_rn("$2a$", rounds, entropy, sizeof(entropy), salt, sizeof(salt)))
+			throw ModuleException("Could not generate salt - this should never happen");
+
+		return salt;
+	}
+
+ public:
+	unsigned int rounds;
+
+	std::string Generate(const std::string& data, const std::string& salt)
+	{
+		char hash[64];
+		_crypt_blowfish_rn(data.c_str(), salt.c_str(), hash, sizeof(hash));
+		return hash;
+	}
+
+	std::string GenerateRaw(const std::string& data) CXX11_OVERRIDE
+	{
+		return Generate(data, Salt());
+	}
+
+	bool Compare(const std::string& input, const std::string& hash) CXX11_OVERRIDE
+	{
+		std::string ret = Generate(input, hash);
+		if (ret.empty())
+			return false;
+
+		if (ret == hash)
+			return true;
+		return false;
+	}
+
+	std::string ToPrintable(const std::string& raw) CXX11_OVERRIDE
+	{
+		return raw;
+	}
+
+	BCryptProvider(Module* parent)
+		: HashProvider(parent, "bcrypt", 60)
+		, rounds(10)
+	{
+	}
+};
+
+class ModuleBCrypt : public Module
+{
+	BCryptProvider bcrypt;
+
+ public:
+	ModuleBCrypt() : bcrypt(this)
+	{
+	}
+
+	void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
+	{
+		ConfigTag* conf = ServerInstance->Config->ConfValue("bcrypt");
+		bcrypt.rounds = conf->getUInt("rounds", 10, 1);
+	}
+
+	Version GetVersion() CXX11_OVERRIDE
+	{
+		return Version("Implements bcrypt hashing", VF_VENDOR);
+	}
+};
+
+MODULE_INIT(ModuleBCrypt)