enc_bcrypt.cpp: Get rid of the libxcrypt dependency by including code from libxcrypt, and move enc_bcrypt out of extras

1 files changed, 0 insertions, 121 deletions

diff --git a/modules/extra/enc_bcrypt.cpp b/modules/extra/enc_bcrypt.cpp
deleted file mode 100644
index cd5e05c35..000000000
--- a/modules/extra/enc_bcrypt.cpp
+++ /dev/null
@@ -1,121 +0,0 @@
-/* RequiredLibraries: xcrypt */
-
-#include "module.h"
-#include "modules/encryption.h"
-#include <xcrypt.h>
-
-class EBCRYPT : public Module
-{
-	unsigned int rounds;
-
-	Anope::string Salt()
-	{
-		char entropy[16];
-		for (unsigned int i = 0; i < sizeof(entropy); i++)
-			entropy[i] = static_cast<char>(rand() % 0xFF);
-
-		char salt[32];
-		if (!crypt_gensalt_rn("$2a$", rounds, entropy, sizeof(entropy), salt, sizeof(salt)))
-			return "";
-		return salt;
-	}
-
-	Anope::string Generate(const Anope::string& data, const Anope::string& salt)
-	{
-		char hash[64];
-		crypt_rn(data.c_str(), salt.c_str(), hash, sizeof(hash));
-		return hash;
-	}
-
-	bool Compare(const Anope::string& string, const Anope::string& hash)
-	{
-		Anope::string ret = Generate(string, hash);
-		if (ret.empty())
-			return false;
-
-		return (ret == hash);
-	}
-
- public:
-	EBCRYPT(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, ENCRYPTION | VENDOR | EXTRA),
-		rounds(10)
-	{
-		// Should obviously never happen, but if xcrypt somehow was compiled without support for $2a$ I guess it might
-		if (Salt() == "")
-			throw ModuleException("Could not salt! BCrypt will not be available!");
-	}
-
-	EventReturn OnEncrypt(const Anope::string &src, Anope::string &dest) anope_override
-	{
-		dest = "bcrypt:" + Generate(src, Salt());
-		Log(LOG_DEBUG_2) << "(enc_bcrypt) hashed password from [" << src << "] to [" << dest << "]";
-		return EVENT_ALLOW;
-	}
-
-	void OnCheckAuthentication(User *, IdentifyRequest *req) anope_override
-	{
-		const NickAlias *na = NickAlias::Find(req->GetAccount());
-		if (na == NULL)
-			return;
-		NickCore *nc = na->nc;
-
-		size_t pos = nc->pass.find(':');
-		if (pos == Anope::string::npos)
-			return;
-		Anope::string hash_method(nc->pass.begin(), nc->pass.begin() + pos);
-		if (hash_method != "bcrypt")
-			return;
-
-		if (Compare(req->GetPassword(), nc->pass.substr(7)))
-		{
-			/* if we are NOT the first module in the list,
-			 * we want to re-encrypt the pass with the new encryption
-			 */
-
-			unsigned int hashrounds = 0;
-			try
-			{
-				size_t roundspos = nc->pass.find('$', 11);
-				if (roundspos == Anope::string::npos)
-					throw ConvertException("Could not find hashrounds");
-
-				hashrounds = convertTo<unsigned int>(nc->pass.substr(11, roundspos - 11));
-			}
-			catch (const ConvertException &)
-			{
-				Log(this) << "Could not get the round size of a hash. This is probably a bug. Hash: " << nc->pass;
-			}
-
-			if (ModuleManager::FindFirstOf(ENCRYPTION) != this || (hashrounds && hashrounds != rounds))
-				Anope::Encrypt(req->GetPassword(), nc->pass);
-			req->Success(this);
-		}
-	}
-
-	void OnReload(Configuration::Conf *conf) anope_override
-	{
-		Configuration::Block *block = conf->GetModule(this);
-		rounds = block->Get<unsigned int>("rounds", "10");
-
-		if (rounds == 0)
-		{
-			rounds = 10;
-			Log(this) << "Rounds can't be 0! Setting ignored.";
-		}
-		else if (rounds < 10)
-		{
-			Log(this) << "10 to 12 rounds is recommended.";
-		}
-		else if (rounds >= 32)
-		{
-			rounds = 10;
-			Log(this) << "The maximum number of rounds supported is 31. Ignoring setting and using 10.";
-		}
-		else if (rounds >= 14)
-		{
-			Log(this) << "Are you sure you want to use " << stringify(rounds) << " in your bcrypt settings? This is very CPU intensive! Recommended rounds is 10-12.";
-		}
-	}
-};
-
-MODULE_INIT(EBCRYPT)