mirror of
https://github.com/anope/anope.git
synced 2026-06-23 22:06:38 +02:00
Sadie Powell
87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
/* Include file for high-level encryption routines.
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*
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* (C) 2003-2025 Anope Team
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* Contact us at team@anope.org
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*
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* Please read COPYING and README for further details.
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*
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* Based on the original code of Epona by Lara.
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* Based on the original code of Services by Andy Church.
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*/
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#include "module.h"
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#include "modules/encryption.h"
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class EOld final
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: public Module
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{
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private:
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ServiceReference<Encryption::Provider> md5;
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Anope::string EncryptInternal(const Anope::string &src)
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{
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if (!md5)
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return {};
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char digest[32];
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memset(digest, 0, sizeof(digest));
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auto hash = md5->Encrypt(src);
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if (hash.length() != sizeof(digest))
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return {}; // Probably a bug?
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memcpy(digest, hash.data(), hash.length());
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char digest2[16];
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for (size_t i = 0; i < sizeof(digest); i += 2)
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digest2[i / 2] = XTOI(digest[i]) << 4 | XTOI(digest[i + 1]);
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return Anope::Hex(digest2, sizeof(digest2));
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}
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inline static char XTOI(char c)
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{
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return c > 9 ? c - 'A' + 10 : c - '0';
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}
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public:
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EOld(const Anope::string &modname, const Anope::string &creator)
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: Module(modname, creator, ENCRYPTION | VENDOR)
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, md5("Encryption::Provider", "md5")
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{
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if (ModuleManager::FindFirstOf(ENCRYPTION) == this)
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throw ModuleException("enc_old is deprecated and can not be used as a primary encryption method");
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ModuleManager::LoadModule("enc_md5", User::Find(creator, true));
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if (!md5)
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throw ModuleException("Unable to find md5 reference");
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}
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void OnCheckAuthentication(User *, IdentifyRequest *req) override
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{
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const auto *na = NickAlias::Find(req->GetAccount());
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if (!na)
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return;
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NickCore *nc = na->nc;
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size_t pos = nc->pass.find(':');
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if (pos == Anope::string::npos)
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return;
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Anope::string hash_method(nc->pass.begin(), nc->pass.begin() + pos);
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if (!hash_method.equals_cs("oldmd5"))
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return;
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auto enc = EncryptInternal(req->GetPassword());
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if (!enc.empty() && nc->pass.equals_cs(enc))
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{
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// If we are NOT the first encryption module we want to re-encrypt
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// the password with the primary encryption method.
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if (ModuleManager::FindFirstOf(ENCRYPTION) != this)
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Anope::Encrypt(req->GetPassword(), nc->pass);
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req->Success(this);
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}
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}
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};
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MODULE_INIT(EOld)
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