1 files changed, 123 insertions, 0 deletions

diff --git a/framework/src/domain/mime/crypto.h b/framework/src/domain/mime/crypto.h
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@@ -0,0 +1,123 @@
+/*
+    Copyright (c) 2016 Christian Mollekopf <mollekopf@kolabsys.com>
+
+    This library is free software; you can redistribute it and/or modify it
+    under the terms of the GNU Library General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    This library 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 Library General Public
+    License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to the
+    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+    02110-1301, USA.
+*/
+
+#pragma once
+
+#include "framework/src/errors.h"
+
+#include <QByteArray>
+#include <QVariant>
+
+#include <functional>
+#include <memory>
+#include <gpgme.h>
+#include <QDateTime>
+
+namespace Crypto {
+
+enum CryptoProtocol {
+    UnknownProtocol,
+    OpenPGP,
+    CMS
+};
+
+
+struct UserId {
+    QByteArray name;
+    QByteArray email;
+    QByteArray id;
+};
+
+struct Key {
+    QByteArray keyId;
+    QByteArray shortKeyId;
+    QByteArray fingerprint;
+    bool isExpired = false;
+    std::vector<UserId> userIds;
+};
+
+struct Error {
+    gpgme_error_t error;
+    gpgme_err_code_t errorCode() const {
+        return gpgme_err_code(error);
+    }
+    operator bool() const
+    {
+        return error != GPG_ERR_NO_ERROR;
+    }
+};
+
+struct Signature {
+    QByteArray fingerprint;
+    gpgme_sigsum_t summary;
+    Error status;
+    gpgme_validity_t validity;
+    gpgme_error_t validity_reason;
+    QDateTime creationTime;
+};
+
+struct VerificationResult {
+    std::vector<Signature> signatures;
+    Error error;
+};
+
+struct Recipient {
+    QByteArray keyId;
+    Error status;
+};
+
+struct DecryptionResult {
+    std::vector<Recipient> recipients;
+    Error error;
+};
+
+struct KeyListResult {
+    std::vector<Key> keys;
+    Error error;
+};
+
+
+std::vector<Key> findKeys(const QStringList &filter, bool findPrivate = false, bool remote = false);
+
+Expected<Error, QByteArray> exportPublicKey(const Key &key);
+struct ImportResult {
+    int considered;
+    int imported;
+    int unchanged;
+};
+ImportResult importKeys(CryptoProtocol protocol, const QByteArray &certData);
+ImportResult importKey(const QByteArray &key);
+
+/**
+ * Sign the given content and returns the signing data and the algorithm used
+ * for integrity check in the "pgp-<algorithm>" format.
+ */
+Expected<Error, std::pair<QByteArray, QString>>
+sign(const QByteArray &content, const std::vector<Key> &signingKeys);
+Expected<Error, QByteArray> signAndEncrypt(const QByteArray &content, const std::vector<Key> &encryptionKeys, const std::vector<Key> &signingKeys);
+
+std::pair<DecryptionResult,VerificationResult> decryptAndVerify(CryptoProtocol protocol, const QByteArray &ciphertext, QByteArray &outdata);
+VerificationResult verifyDetachedSignature(CryptoProtocol protocol, const QByteArray &signature, const QByteArray &outdata);
+VerificationResult verifyOpaqueSignature(CryptoProtocol protocol, const QByteArray &signature, QByteArray &outdata);
+};
+
+Q_DECLARE_METATYPE(Crypto::Key);
+
+QDebug operator<< (QDebug d, const Crypto::Key &);
+QDebug operator<< (QDebug d, const Crypto::Error &);