added omemo2

ThirdParty/MartinOMEMO/.github/FUNDING.yml

@@ -0,0 +1,3 @@
+# These are supported funding model platforms
+
+github: [tigase]

ThirdParty/MartinOMEMO/.gitignore

@@ -0,0 +1,6 @@
+.DS_Store
+/.build
+/.swiftpm
+/Packages
+/*.xcodeproj
+xcuserdata/

ThirdParty/MartinOMEMO/LICENSE

@@ -0,0 +1,674 @@
+GNU GENERAL PUBLIC LICENSE
+Version 3, 29 June 2007
+
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+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+<one line to give the program's name and a brief idea of what it does.>
+Copyright (C) <year>  <name of author>
+
+This program 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, either version 3 of the License, or
+(at your option) any later version.
+
+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 <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+<program>  Copyright (C) <year>  <name of author>
+This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+This is free software, and you are welcome to redistribute it
+under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

ThirdParty/MartinOMEMO/Package.swift

@@ -0,0 +1,31 @@
+// swift-tools-version:5.6
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "MartinOMEMO",
+    platforms: [.iOS(.v13), .macOS(.v10_15)],
+    products: [
+        // Products define the executables and libraries produced by a package, and make them visible to other packages.
+        .library(
+            name: "MartinOMEMO",
+            targets: ["MartinOMEMO"]),
+    ],
+    dependencies: [
+        // Dependencies declare other packages that this package depends on.
+        // .package(url: /* package url */, from: "1.0.0"),
+        .package(url: "https://github.com/tigase/Martin", from: "3.2.4"),
+        .package(url: "https://github.com/tigase/libsignal", from: "1.0.0")
+    ],
+    targets: [
+        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+        // Targets can depend on other targets in this package, and on products in packages which this package depends on.
+        .target(
+            name: "MartinOMEMO",
+            dependencies: ["Martin", "libsignal"]),
+        .testTarget(
+            name: "MartinOMEMOTests",
+            dependencies: ["MartinOMEMO"]),
+    ]
+)

ThirdParty/MartinOMEMO/README.md

@@ -0,0 +1,7 @@
+<h1 align="center">
+  Martin - OMEMO support
+</h1>
+
+# What it is
+
+Martin is an [XMPP](https://xmpp.org) client library written in a [Swift](https://swift.org) programming language. This project is an extension for that library providing support for OMEMO extension providing multi-end message and object encryption.

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/Identity.swift

@@ -0,0 +1,40 @@
+//
+// Identity.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+
+public class Identity {
+    
+    public let address: SignalAddress;
+    public let status: IdentityStatus;
+    public let fingerprint: String;
+    public let key: Data;
+    public let own: Bool;
+    
+    public init(address: SignalAddress, status: IdentityStatus, fingerprint: String, key: Data, own: Bool) {
+        self.address = address;
+        self.status = status;
+        self.fingerprint = fingerprint;
+        self.key = key;
+        self.own = own;
+    }
+    
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/IdentityStatus.swift

@@ -0,0 +1,108 @@
+//
+// IdentityStatus.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+
+public enum IdentityStatus: Int {
+    case compromisedActive = -2
+    case compromisedInactive = -1
+    case undecidedActive = 0
+    case undecidedInactive = 1
+    case trustedActive = 2
+    case trustedInactive = 3
+    case verifiedActive = 4
+    case verifiedInactive = 5
+    
+    public var trust: Trust {
+        switch self {
+        case .compromisedActive, .compromisedInactive:
+            return .compromised;
+        case .undecidedActive, .undecidedInactive:
+            return .undecided;
+        case .trustedActive, .trustedInactive:
+            return .trusted;
+        case .verifiedActive, .verifiedInactive:
+            return .verified;
+        }
+    }
+    
+    public var isActive: Bool {
+        switch self {
+        case .compromisedActive, .undecidedActive, .trustedActive, .verifiedActive:
+            return true;
+        case .compromisedInactive, .undecidedInactive, .trustedInactive, .verifiedInactive:
+            return false;
+        }
+    }
+    
+    public func toActive() -> IdentityStatus {
+        guard !self.isActive else {
+            return self;
+        }
+        
+        return make(active: true, trust: self.trust);
+    }
+    
+    public func toInactive() -> IdentityStatus {
+        guard self.isActive else {
+            return self;
+        }
+
+        return make(active: false, trust: self.trust);
+    }
+    
+    public func toTrust(_ trust: Trust) -> IdentityStatus {
+        return make(active: isActive, trust: trust);
+    }
+    
+    public func make(active: Bool, trust: Trust) -> IdentityStatus {
+        if active {
+            switch trust {
+            case .compromised:
+                return .compromisedActive;
+            case .undecided:
+                return .undecidedActive;
+            case .trusted:
+                return .trustedActive;
+            case .verified:
+                return .verifiedActive;
+            }
+        } else {
+            switch trust {
+            case .compromised:
+                return .compromisedInactive;
+            case .undecided:
+                return .undecidedInactive;
+            case .trusted:
+                return .trustedInactive;
+            case .verified:
+                return .verifiedInactive;
+            }
+        }
+    }
+}
+
+public enum Trust {
+    case compromised
+    case undecided
+    case trusted
+    case verified
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/SignalAddress.swift

@@ -0,0 +1,82 @@
+//
+// SignalAddress.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+import libsignal
+
+open class SignalAddress: Hashable, CustomStringConvertible {
+    
+    public static func == (lhs: SignalAddress, rhs: SignalAddress) -> Bool {
+        return lhs.name == rhs.name && lhs.deviceId == rhs.deviceId;
+    }
+    
+    public func hash(into hasher: inout Hasher) {
+        hasher.combine(name);
+        hasher.combine(deviceId);
+    }
+    
+    public let name: String;
+    public let deviceId: Int32;
+    
+    fileprivate let nameBytes: UnsafeMutablePointer<Int8>;
+    public let address: UnsafeMutablePointer<signal_protocol_address>;
+    
+    public var description: String {
+        return "(name: \(name), deviceId: \(deviceId) or \(UInt32(bitPattern: deviceId))";
+    }
+    
+    public init(name: String, deviceId: Int32) {
+        self.name = name;
+        self.deviceId = deviceId;
+        
+        let rawPointer = malloc(MemoryLayout<signal_protocol_address>.size)!.assumingMemoryBound(to: signal_protocol_address.self);
+        rawPointer.pointee.device_id = deviceId;
+        let tmp = self.name.utf8CString;
+        self.nameBytes = tmp.withUnsafeBytes { (inBuf) -> UnsafeMutablePointer<Int8> in
+            let outBuf = malloc(tmp.count)!.assumingMemoryBound(to: Int8.self);
+            memcpy(outBuf, inBuf.baseAddress!, tmp.count);
+            return outBuf;
+        }
+
+        rawPointer.pointee.name = UnsafePointer(nameBytes);
+        self.address = rawPointer;
+    }
+    
+    deinit {
+        free(address);
+        free(nameBytes);
+    }
+    
+    public convenience init?(from: UnsafePointer<signal_protocol_address>?) {
+        guard let namePtr = from?.pointee.name, let name = String(validatingUTF8: namePtr), let deviceId = from?.pointee.device_id else {
+            return nil;
+        }
+        
+        self.init(name: name, deviceId: deviceId);
+    }
+        
+    public convenience init?(from: UnsafePointer<signal_protocol_address?>?) {
+        guard var addr = from?.pointee else {
+            return nil;
+        }
+        self.init(from: &addr);
+    }
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/SignalContext.swift

@@ -0,0 +1,238 @@
+//
+// SignalContext.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+import libsignal
+
+open class SignalContext {
+    
+    public fileprivate(set) var globalContext: OpaquePointer?;
+    fileprivate let provider: SignalCryptoProvider = SignalCryptoProvider();
+    fileprivate let lock: NSRecursiveLock = NSRecursiveLock();
+    public let storage: SignalStorage;
+    
+    public init?(withStorage: SignalStorage) {
+        self.storage = withStorage;
+
+        guard signal_context_create(&globalContext, SignalContext.bridge(self)) == 0 else {
+            return nil;
+        }
+
+        var provider = self.provider.provider;
+        signal_context_set_crypto_provider(globalContext, &provider)
+        
+        signal_context_set_locking_functions(globalContext, signalLock, signalUnlock)
+        signal_context_set_log_function(globalContext, signalLog);
+
+        self.storage.setup(withContext: self);
+    }
+    
+    open func generateRegistrationId() -> UInt32 {
+        var regId: UInt32 = 0;
+        let res = signal_protocol_key_helper_generate_registration_id(&regId, 1, self.globalContext!);
+        guard res >= 0 else {
+            return 0;
+        }
+        return regId;
+    }
+    
+    open func generatePreKeys(withStartingPreKeyId preKeyId: UInt32, count: UInt32) -> [SignalPreKey] {
+        var head: OpaquePointer? = nil;
+        guard signal_protocol_key_helper_generate_pre_keys(&head, preKeyId, count, globalContext) >= 0 && head != nil else {
+            return [];
+        }
+        var keys: [SignalPreKey] = [];
+        while (head != nil) {
+            if let pre_key = signal_protocol_key_helper_key_list_element(head) {
+                keys.append(SignalPreKey(fromPreKey: pre_key));
+            }
+            head = signal_protocol_key_helper_key_list_next(head);
+        }
+        return keys;
+    }
+    
+    open func generateSignedPreKey(withIdentity identity: SignalIdentityKeyPairProtocol, signedPreKeyId: UInt32, timestamp: Date = Date()) -> SignalSignedPreKey? {
+        guard let keyPair = identity.keyPairPointer else {
+            return nil;
+        }
+        
+        var signed_pre_key: OpaquePointer?;
+        guard signal_protocol_key_helper_generate_signed_pre_key(&signed_pre_key, keyPair, signedPreKeyId, UInt64(timestamp.timeIntervalSince1970) * 1000, globalContext) >= 0 && signed_pre_key != nil else {
+            return nil;
+        }
+        
+        return SignalSignedPreKey(fromSignedPreKey: signed_pre_key!);
+    }
+    
+    static func bridge<T : AnyObject>(_ obj : T) -> UnsafeMutableRawPointer {
+        return Unmanaged.passUnretained(obj).toOpaque();
+    }
+    
+    static func bridge<T : AnyObject>(_ ptr : UnsafeMutableRawPointer) -> T {
+        return Unmanaged<T>.fromOpaque(ptr).takeUnretainedValue();
+    }
+
+    static func bridge(fromPointer ptr : UnsafeMutableRawPointer) -> AnyObject {
+        return Unmanaged.fromOpaque(ptr).takeUnretainedValue();
+    }
+
+}
+
+fileprivate func signalLock(_ userData: UnsafeMutableRawPointer?) {
+    let ctx: SignalContext = SignalContext.bridge(userData!);
+    ctx.lock.lock();
+}
+
+fileprivate func signalUnlock(_ userData: UnsafeMutableRawPointer?) {
+    let ctx: SignalContext = SignalContext.bridge(userData!);
+    ctx.lock.unlock();
+}
+
+fileprivate func signalLog(level: CInt, message: UnsafePointer<Int8>?, len: Int, userData: UnsafeMutableRawPointer?) {
+    print("SignalProtocol:", level, String(validatingUTF8: message!) as Any);
+}
+
+open class SignalSignedPreKey {
+
+    fileprivate let signedPreKey: OpaquePointer;
+    
+    public var preKeyId: UInt32 {
+        return session_signed_pre_key_get_id(signedPreKey);
+    }
+    
+    public var timestamp: Date {
+        return Date(timeIntervalSince1970: TimeInterval(session_signed_pre_key_get_timestamp(signedPreKey) / 1000));
+    }
+    
+    public var signature: Data {
+        let sigBytes = session_signed_pre_key_get_signature(signedPreKey);
+        let sigLen = session_signed_pre_key_get_signature_len(signedPreKey);
+        return Data(bytes: sigBytes!, count: sigLen);
+    }
+    
+    public var serializedData: Data? {
+        var buf: OpaquePointer?;
+        guard session_signed_pre_key_serialize(&buf, signedPreKey) == 0 && buf != nil else {
+            return nil;
+        }
+        
+        defer {
+            signal_buffer_free(buf);
+        }
+        return Data(bytes: signal_buffer_data(buf), count: signal_buffer_len(buf));
+    }
+    
+    public var publicKeyData: Data? {
+        guard let keyPair = session_signed_pre_key_get_key_pair(signedPreKey) else {
+            return nil;
+        }
+        guard let publicKey = ec_key_pair_get_public(keyPair) else {
+            return nil;
+        }
+        var buf: OpaquePointer?;
+        guard ec_public_key_serialize(&buf, publicKey) >= 0 && buf != nil else {
+            return nil;
+        }
+        
+        defer {
+            signal_buffer_free(buf);
+        }
+        return Data(bytes: signal_buffer_data(buf), count: signal_buffer_len(buf));
+    }
+    
+    public init(fromSignedPreKey: OpaquePointer) {
+        self.signedPreKey = fromSignedPreKey;
+        signal_type_ref(signedPreKey);
+    }
+
+    public convenience init?(fromSerializedData: Data) {
+        guard let preKey: OpaquePointer = fromSerializedData.withUnsafeBytes({ (bytes) -> OpaquePointer? in
+            var tmp: OpaquePointer?;
+            guard session_signed_pre_key_deserialize(&tmp, bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), fromSerializedData.count, nil) >= 0 else {
+                return nil;
+            }
+            return tmp;
+        }) else {
+            return nil;
+        }
+        self.init(fromSignedPreKey: preKey);
+    }
+    
+    deinit {
+        signal_type_unref(signedPreKey);
+    }
+}
+
+open class SignalPreKey {
+    
+    fileprivate let preKey: OpaquePointer;
+
+    public var preKeyId: UInt32 {
+        return session_pre_key_get_id(preKey);
+    }
+    
+    public var serializedData: Data? {
+        var buf: OpaquePointer?;
+        guard session_pre_key_serialize(&buf, preKey) == 0 && buf != nil else {
+            return nil;
+        }
+        
+        defer {
+            signal_buffer_free(buf);
+        }
+        return Data(bytes: signal_buffer_data(buf), count: signal_buffer_len(buf));
+    }
+    
+    public var serializedPublicKey: Data? {
+        let keyPair = session_signed_pre_key_get_key_pair(preKey);
+        var buf: OpaquePointer?;
+        guard ec_public_key_serialize(&buf, ec_key_pair_get_public(keyPair)) >= 0 else {
+            return nil;
+        }
+        defer {
+            signal_buffer_free(buf);
+        }
+        return Data(bytes: signal_buffer_data(buf), count: signal_buffer_len(buf));
+    }
+    
+    public init(fromPreKey: OpaquePointer) {
+        self.preKey = fromPreKey;
+        signal_type_ref(self.preKey);
+    }
+    
+    public convenience init?(fromSerializedData: Data) {
+        guard let preKey: OpaquePointer = fromSerializedData.withUnsafeBytes({ (bytes) -> OpaquePointer? in
+            var tmp: OpaquePointer?;
+            guard session_pre_key_deserialize(&tmp, bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), fromSerializedData.count, nil) >= 0 else {
+                return nil;
+            }
+            return tmp;
+        }) else {
+            return nil;
+        }
+        self.init(fromPreKey: preKey);
+    }
+    
+    deinit {
+        signal_type_unref(preKey);
+    }
+    
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/SignalCryptoProvider.swift

@@ -0,0 +1,175 @@
+//
+// SignalCryptoProvider.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+import CommonCrypto
+import libsignal
+
+public class SignalCryptoProvider {
+    
+    public fileprivate(set) var provider: signal_crypto_provider;
+    
+    init() {
+        provider = signal_crypto_provider();
+        provider.random_func = random_func;
+        provider.hmac_sha256_init_func = hmac_sha256_init_func;
+        provider.hmac_sha256_update_func = hmac_sha256_update_func;
+        provider.hmac_sha256_final_func = hmac_sha256_final_func;
+        provider.hmac_sha256_cleanup_func = hmac_sha256_cleanup_func;
+        provider.sha512_digest_init_func = sha512_digest_init_func;
+        provider.sha512_digest_update_func = sha512_digest_update_func;
+        provider.sha512_digest_final_func = sha512_digest_final_func;
+        provider.sha512_digest_cleanup_func = sha512_digest_cleanup_func;
+        provider.encrypt_func = encrypt_func;
+        provider.decrypt_func = decrypt_func;
+        provider.user_data = SignalContext.bridge(self);
+    }
+}
+
+fileprivate func random_func(data: UnsafeMutablePointer<UInt8>?, len: Int, ctx: UnsafeMutableRawPointer?) -> CInt {
+    guard CCRandomGenerateBytes(data, len) == kCCSuccess else {
+        return SG_ERR_INVAL;
+    }
+    return SG_SUCCESS;
+}
+
+fileprivate func hmac_sha256_init_func(hmacCtx: UnsafeMutablePointer<UnsafeMutableRawPointer?>?, key: UnsafePointer<UInt8>?, keyLen: Int, ctx: UnsafeMutableRawPointer?) -> CInt {
+    guard hmacCtx != nil && key != nil else {
+        return SG_ERR_INVAL;
+    }
+    
+    guard let ctx: UnsafeMutablePointer<CCHmacContext> = malloc(MemoryLayout<CCHmacContext>.size)?.assumingMemoryBound(to: CCHmacContext.self) else {
+        return SG_ERR_NOMEM;
+    }
+    
+    CCHmacInit(ctx, CCHmacAlgorithm(kCCHmacAlgSHA256), key, keyLen);
+    hmacCtx!.initialize(to: ctx);
+    return SG_SUCCESS;
+}
+
+fileprivate func hmac_sha256_update_func(hmacCtx: UnsafeMutableRawPointer?, data: UnsafePointer<UInt8>?, dataLen: Int, ctx: UnsafeMutableRawPointer?) -> CInt {
+    guard hmacCtx != nil && data != nil else {
+        return SG_ERR_INVAL;
+    }
+    CCHmacUpdate(hmacCtx?.assumingMemoryBound(to: CCHmacContext.self), data!, dataLen);
+    return SG_SUCCESS;
+}
+
+fileprivate func hmac_sha256_final_func(hmacCtx: UnsafeMutableRawPointer?, output: UnsafeMutablePointer<OpaquePointer?>?, ctx: UnsafeMutableRawPointer?) -> CInt {
+    guard hmacCtx != nil && output != nil else {
+        return SG_ERR_INVAL;
+    }
+    
+    let length = Int(CC_SHA256_DIGEST_LENGTH);
+    var data = Data(capacity: length);
+    data.withUnsafeMutableBytes({ (ptr: UnsafeMutableRawBufferPointer) -> Void in
+        CCHmacFinal(hmacCtx?.assumingMemoryBound(to: CCHmacContext.self), ptr.baseAddress)
+        return;
+    });
+    output!.initialize(to: data.withUnsafeBytes({ (ptr: UnsafeRawBufferPointer) -> OpaquePointer in
+        return signal_buffer_create(ptr.baseAddress?.assumingMemoryBound(to: UInt8.self), length);
+    }));
+    return SG_SUCCESS;
+}
+
+fileprivate func hmac_sha256_cleanup_func(hmacCtx: UnsafeMutableRawPointer?, ctx: UnsafeMutableRawPointer?) {
+    guard hmacCtx != nil else {
+        return;
+    }
+    free(hmacCtx!);
+}
+
+fileprivate func sha512_digest_init_func(digestCtx: UnsafeMutablePointer<UnsafeMutableRawPointer?>?, ctx: UnsafeMutableRawPointer?) -> CInt {
+    guard digestCtx != nil else {
+        return SG_ERR_INVAL;
+    }
+    
+    guard let ctx: UnsafeMutablePointer<CC_SHA512_CTX> = malloc(MemoryLayout<CC_SHA1_CTX>.size)?.assumingMemoryBound(to: CC_SHA512_CTX.self) else {
+        return SG_ERR_NOMEM;
+    }
+    
+    CC_SHA512_Init(ctx);
+    digestCtx!.initialize(to: ctx);
+    return SG_SUCCESS;
+}
+
+fileprivate func sha512_digest_update_func(digestCtx: UnsafeMutableRawPointer?, data: UnsafePointer<UInt8>?, dataLen: Int, ctx: UnsafeMutableRawPointer?) -> CInt {
+    guard digestCtx != nil && data != nil else {
+        return SG_ERR_INVAL;
+    }
+    CC_SHA512_Update(digestCtx!.assumingMemoryBound(to: CC_SHA512_CTX.self), data, UInt32(dataLen));
+    return SG_SUCCESS;
+}
+
+fileprivate func sha512_digest_final_func(digestCtx: UnsafeMutableRawPointer?, output: UnsafeMutablePointer<OpaquePointer?>?, ctx: UnsafeMutableRawPointer?) -> CInt {
+    guard digestCtx != nil && output != nil else {
+        return SG_ERR_INVAL;
+    }
+    
+    let length = Int(CC_SHA512_DIGEST_LENGTH);
+    var data = Data(capacity: length);
+    data.withUnsafeMutableBytes({ (ptr: UnsafeMutableRawBufferPointer) -> Void in
+        CC_SHA512_Final(ptr.baseAddress?.assumingMemoryBound(to: UInt8.self), digestCtx?.assumingMemoryBound(to: CC_SHA512_CTX.self))
+        return;
+    });
+    output!.initialize(to: data.withUnsafeBytes({ (ptr: UnsafeRawBufferPointer) -> OpaquePointer in
+        return signal_buffer_create(ptr.baseAddress?.assumingMemoryBound(to: UInt8.self), length);
+    }));
+    return SG_SUCCESS;
+}
+
+fileprivate func sha512_digest_cleanup_func(digestCtx: UnsafeMutableRawPointer?, ctx: UnsafeMutableRawPointer?) {
+    guard digestCtx != nil else {
+        return;
+    }
+    free(digestCtx!);
+}
+
+fileprivate func encrypt_func(output: UnsafeMutablePointer<OpaquePointer?>?, cipher: CInt, key: UnsafePointer<UInt8>?, keyLen: Int, iv: UnsafePointer<UInt8>?, ivLen: Int, plaintext: UnsafePointer<UInt8>?, plaintextLen: Int, ctx: UnsafeMutableRawPointer?) -> CInt {
+    guard cipher == SG_CIPHER_AES_CBC_PKCS5 else {
+        return SG_ERR_INVAL;
+    }
+    
+    var outLen: Int = 0;
+    var bytes = Array(repeating: UInt8(0), count: kCCBlockSizeAES128 + plaintextLen);
+    let result = CCCrypt(CCOperation(kCCEncrypt), CCAlgorithm(kCCAlgorithmAES), CCOptions(kCCOptionPKCS7Padding), key, keyLen, iv, plaintext, plaintextLen, &bytes, bytes.count, &outLen);
+    guard result == kCCSuccess else {
+        return SG_ERR_UNKNOWN;
+    }
+    
+    output?.initialize(to: signal_buffer_create(&bytes, outLen));
+    return SG_SUCCESS;
+}
+
+fileprivate func decrypt_func(output: UnsafeMutablePointer<OpaquePointer?>?, cipher: CInt, key: UnsafePointer<UInt8>?, keyLen: Int, iv: UnsafePointer<UInt8>?, ivLen: Int, ciphertext: UnsafePointer<UInt8>?, ciphertextLen: Int, ctx: UnsafeMutableRawPointer?) -> CInt {
+    guard cipher == SG_CIPHER_AES_CBC_PKCS5 else {
+        return SG_ERR_INVAL;
+    }
+    
+    var outLen: Int = 0;
+    var bytes = Array(repeating: UInt8(0), count: ciphertextLen + kCCBlockSizeAES128);
+    guard CCCrypt(CCOperation(kCCDecrypt), CCAlgorithm(kCCAlgorithmAES), CCOptions(kCCOptionPKCS7Padding), key, keyLen, iv, ciphertext, ciphertextLen, &bytes, bytes.count, &outLen) == kCCSuccess else {
+        return SG_ERR_UNKNOWN;
+    }
+    
+    output?.initialize(to: signal_buffer_create(&bytes, outLen));
+    return SG_SUCCESS;
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/SignalError.swift

@@ -0,0 +1,54 @@
+//
+// SignalError.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+
+public enum SignalError: Int, Error {
+    
+    // custom error code, not from libsignal but required for internal use to mark that message was not encrypted
+    case notEncrypted = -100000;
+    case noDestination = -100001;
+
+    case noMemory = -12;
+    case invalidArgument = -22;
+    case unknown = -1000;
+    case duplicateMessage = -1001;
+    case invalidKey = -1002;
+    case invalidKeyId = -1003;
+    case invalidMac = -1004;
+    case invalidMessage = -1005;
+    case invalidVersion = -1006;
+    case legacyMessage = -1007;
+    case noSession = -1008;
+    case staleKeyExchange = -1009;
+    case unstrustedIdentity = -1010;
+    case signatureVerificationFailed = -1011;
+    case invalidProtoBuf = -1100;
+    case fpInvalidVersion = -1200;
+    case fpIdentityMismatch = -1201;
+
+    public static func from(code: Int32) -> SignalError? {
+        guard code < 0 else {
+            return nil;
+        }
+        return SignalError(rawValue: Int(code)) ?? .unknown;
+    }
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/SignalIdentityKey.swift

@@ -0,0 +1,75 @@
+//
+// SignalIdentityKey.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+import libsignal
+
+open class SignalIdentityKey: SignalIdentityKeyProtocol {
+
+    public static func publicKey(from publicKey: Data) -> OpaquePointer? {
+        return publicKey.withUnsafeBytes({ (bytes) -> OpaquePointer? in
+            var tmp: OpaquePointer?;
+            guard curve_decode_point(&tmp, bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), publicKey.count, nil) >= 0 else {
+                return nil;
+            }
+            return tmp;
+        });
+    }
+    
+    public let publicKeyPointer: OpaquePointer;
+
+    fileprivate var _publicKey: Data?;
+    public var publicKey: Data? {
+        if _publicKey == nil {
+            var buffer: OpaquePointer?;
+            guard ec_public_key_serialize(&buffer, publicKeyPointer) == 0 && buffer != nil else {
+                return nil;
+            }
+            _publicKey = Data(bytes: signal_buffer_data(buffer), count: signal_buffer_len(buffer));
+            signal_buffer_bzero_free(buffer);
+        }
+        return _publicKey;
+    }
+    
+    public convenience init?(publicKey: Data?) {
+        guard publicKey != nil else {
+            return nil;
+        }
+        guard let publicKeyPointer = SignalIdentityKey.publicKey(from: publicKey!) else {
+            return nil;
+        }
+        
+        self.init(publicKeyPointer: publicKeyPointer);
+    }
+    
+    public init(publicKeyPointer: OpaquePointer) {
+        self.publicKeyPointer = publicKeyPointer;
+        signal_type_ref(self.publicKeyPointer);
+    }
+    
+    deinit {
+        signal_type_unref(publicKeyPointer);
+    }
+    
+    open func serialized() -> Data {
+        return publicKey!;
+    }
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/SignalIdentityKeyPair.swift

@@ -0,0 +1,133 @@
+//
+// SignalIdentityKeyPair.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+import libsignal
+
+open class SignalIdentityKeyPair: SignalIdentityKey, SignalIdentityKeyPairProtocol {
+    
+    public let privateKeyPointer: OpaquePointer;
+    
+    fileprivate var _keyPairPointer: OpaquePointer?;
+    public var keyPairPointer: OpaquePointer? {
+        if _keyPairPointer == nil {
+            ec_key_pair_create(&_keyPairPointer, publicKeyPointer, privateKeyPointer);
+        }
+        return _keyPairPointer;
+    }
+
+    fileprivate var _privateKey: Data?;
+    public var privateKey: Data? {
+        if _privateKey == nil {
+            var buffer: OpaquePointer?;
+            guard ec_private_key_serialize(&buffer, privateKeyPointer) == 0 && buffer != nil else {
+                return nil;
+            }
+            _privateKey = Data(bytes: signal_buffer_data(buffer), count: signal_buffer_len(buffer));
+            signal_buffer_bzero_free(buffer);
+        }
+        return _privateKey;
+    }
+    
+    public var keyPair: Data? {
+        guard let keyPairPointer = self.keyPairPointer else {
+            return nil;
+        }
+        var buffer: OpaquePointer?;
+        guard ratchet_identity_key_pair_serialize(&buffer, keyPairPointer) == 0 && buffer != nil else {
+            return nil;
+        }
+        defer {
+            signal_buffer_bzero_free(buffer);
+        }
+        return Data(bytes: signal_buffer_data(buffer), count: signal_buffer_len(buffer));
+    }
+    
+    public init?(publicKey: Data?, privateKey: Data?) {
+        guard publicKey != nil && privateKey != nil else {
+            return nil;
+        }
+        
+        guard let privateKeyPointer = privateKey!.withUnsafeBytes({ (bytes) -> OpaquePointer? in
+            var tmp: OpaquePointer?;
+            guard curve_decode_private_point(&tmp, bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), privateKey!.count, nil) >= 0 else {
+                return nil;
+            }
+            return tmp;
+        }) else {
+            return nil;
+        }
+        
+        guard let publicKeyPointer = publicKey!.withUnsafeBytes({ (bytes) -> OpaquePointer? in
+            var tmp: OpaquePointer?;
+            guard curve_decode_point(&tmp, bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), publicKey!.count, nil) >= 0 else {
+                return nil;
+            }
+            return tmp;
+        }) else {
+            return nil;
+        }
+
+        self.privateKeyPointer = privateKeyPointer;
+        signal_type_ref(self.privateKeyPointer);
+        super.init(publicKeyPointer: publicKeyPointer);
+    }
+    
+    public init(withKeyPair keyPair: OpaquePointer) {
+        privateKeyPointer = ratchet_identity_key_pair_get_private(keyPair);
+        signal_type_ref(self.privateKeyPointer);
+        super.init(publicKeyPointer: ratchet_identity_key_pair_get_public(keyPair));
+    }
+    
+    public convenience init?(fromKeyPairData data: Data) {
+        guard let keyPair = data.withUnsafeBytes({ (bytes) -> OpaquePointer? in
+            var tmp: OpaquePointer?;
+            guard ratchet_identity_key_pair_deserialize(&tmp, bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), data.count, nil) >= 0 && tmp != nil else {
+                return nil;
+            }
+            return tmp;
+        }) else {
+            return nil;
+        }
+        self.init(withKeyPair: keyPair);
+    }
+    
+    deinit {
+        signal_type_unref(privateKeyPointer);
+        if keyPairPointer != nil {
+            signal_type_unref(keyPairPointer);
+            _keyPairPointer = nil;
+        }
+    }
+    
+    public static func generateKeyPair(context: SignalContext) -> SignalIdentityKeyPair? {
+        var keyPair: OpaquePointer? = nil;
+        let result = signal_protocol_key_helper_generate_identity_key_pair(&keyPair, context.globalContext);
+        guard result >= 0 && keyPair != nil else {
+            return nil;
+        }
+        return SignalIdentityKeyPair(withKeyPair: keyPair!);
+    }
+    
+    override open func serialized() -> Data {
+        return keyPair!;
+    }
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/SignalPreKeyBundle.swift

@@ -0,0 +1,87 @@
+//
+// SignalPreKeyBundle.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+import libsignal
+
+public class SignalPreKeyBundle {
+    
+    let bundle: OpaquePointer;
+    
+    public convenience init?(registrationId: UInt32, deviceId: Int32, preKey: OMEMOModule.OMEMOPreKey, bundle: OMEMOModule.OMEMOBundle) {
+        self.init(
+            registrationId: registrationId,
+            deviceId: deviceId,
+            preKeyId: preKey.preKeyId,
+            preKeyPublic: preKey.data,
+            signedPreKeyId: bundle.signedPreKeyId,
+            signedPreKeyPublic: bundle.signedPreKeyPublic,
+            signedPreKeySignature: bundle.signature,
+            identityKey: bundle.identityKey
+        )
+    }
+
+    /// Raw-data initializer added by Luma so an OMEMO 2 bundle (the
+    /// `urn:xmpp:omemo:2` format) can be turned into a Signal prekey bundle
+    /// without routing through the legacy bundle types.
+    public init?(
+        registrationId: UInt32,
+        deviceId: Int32,
+        preKeyId: UInt32,
+        preKeyPublic: Data,
+        signedPreKeyId: UInt32,
+        signedPreKeyPublic: Data,
+        signedPreKeySignature: Data,
+        identityKey: Data
+    ) {
+        guard let preKeyPublicKey = SignalIdentityKey.publicKey(from: preKeyPublic) else {
+            return nil;
+        }
+        guard let signedPreKeyPublicKey = SignalIdentityKey.publicKey(from: signedPreKeyPublic) else {
+            signal_type_unref(preKeyPublicKey);
+            return nil;
+        }
+        guard let identityKeyKey = SignalIdentityKey.publicKey(from: identityKey) else {
+            signal_type_unref(preKeyPublicKey);
+            signal_type_unref(signedPreKeyPublicKey);
+            return nil;
+        }
+        
+        var bundlePtr: OpaquePointer?;
+        guard signedPreKeySignature.withUnsafeBytes({ (bytes) -> Bool in
+            let result = session_pre_key_bundle_create(&bundlePtr, registrationId, deviceId, preKeyId, preKeyPublicKey, signedPreKeyId, signedPreKeyPublicKey, bytes.baseAddress?.assumingMemoryBound(to: UInt8.self), signedPreKeySignature.count, identityKeyKey);
+            signal_type_unref(preKeyPublicKey);
+            signal_type_unref(signedPreKeyPublicKey);
+            signal_type_unref(identityKeyKey);
+            
+            return result >= 0;
+        }) else {
+            return nil;
+        }
+        
+        self.bundle = bundlePtr!;
+    }
+ 
+    deinit {
+        signal_type_unref(bundle);
+    }
+    
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/SignalSessionBuilder.swift

@@ -0,0 +1,51 @@
+//
+// SignalSessioBuilder.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+import libsignal
+
+open class SignalSessionBuilder {
+    
+    fileprivate let builder: OpaquePointer;
+    fileprivate let address: SignalAddress;
+    fileprivate let context: SignalContext;
+    
+    public init?(withAddress addr: SignalAddress, andContext ctx: SignalContext) {
+        var builder: OpaquePointer?;
+        guard session_builder_create(&builder, ctx.storage.storeContext!, addr.address, ctx.globalContext) >= 0 && builder != nil else {
+            return nil;
+        }
+        self.address = addr;
+        self.context = ctx;
+        self.builder = builder!;
+    }
+ 
+    deinit {
+        session_builder_free(builder);
+    }
+    
+    public func processPreKeyBundle(bundle: SignalPreKeyBundle) -> Bool {
+        guard session_builder_process_pre_key_bundle(builder, bundle.bundle) >= 0 else {
+            return false;
+        }
+        return true;
+    }
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/SignalSessionCipher.swift

@@ -0,0 +1,142 @@
+//
+// SignalSessionCipher.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+import libsignal
+
+open class SignalSessionCipher {
+    
+    fileprivate var cipher: OpaquePointer;
+    fileprivate let context: SignalContext;
+    fileprivate let address: SignalAddress;
+    
+    public init?(withAddress address: SignalAddress, andContext context: SignalContext) {
+        var cipher: OpaquePointer?;
+        self.address = address;
+        guard session_cipher_create(&cipher, context.storage.storeContext, self.address.address, context.globalContext) >= 0 && cipher != nil else {
+            return nil;
+        }
+        self.context = context;
+        self.cipher = cipher!;
+    }
+    
+    deinit {
+        session_cipher_free(cipher);
+    }
+    
+    public func encrypt(data: Data) -> Result<Key,SignalError> {
+        var message: OpaquePointer?;
+        let error = data.withUnsafeBytes({ (bytes) -> SignalError? in
+            return SignalError.from(code : session_cipher_encrypt(cipher, bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), data.count, &message));
+        })
+        guard error == nil && message != nil else {
+            return .failure(error ?? .unknown);
+        }
+        
+        let serialized = ciphertext_message_get_serialized(message);
+        let result = Data(bytes: signal_buffer_data(serialized), count: signal_buffer_len(serialized));
+        
+        defer {
+            signal_type_unref(message);
+        }
+        return .success(Key(key: result, deviceId: address.deviceId, prekey: ciphertext_message_get_type(message) == CIPHERTEXT_PREKEY_TYPE));
+    }
+ 
+    public func decrypt(key: Key) -> Result<Data, SignalError> {
+        if key.prekey {
+            return decryptPreKeyMessage(key: key);
+        } else {
+            return decryptSignalMessage(key: key);
+        }
+    }
+    
+    fileprivate func decryptPreKeyMessage(key: Key) -> Result<Data,SignalError> {
+        let result = key.key.withUnsafeBytes({ (bytes) -> Result<OpaquePointer, SignalError> in
+            var output: OpaquePointer?;
+            var preKeySignalMessage: OpaquePointer?;
+            
+            var error = SignalError.from(code: pre_key_signal_message_deserialize(&preKeySignalMessage, bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), key.key.count, self.context.globalContext));
+            guard error == nil && preKeySignalMessage != nil else {
+                return .failure(error ?? .unknown);
+            }
+            defer {
+                signal_type_unref(preKeySignalMessage);
+            }
+            error = SignalError.from(code: session_cipher_decrypt_pre_key_signal_message(cipher, preKeySignalMessage, nil, &output));
+            guard error == nil && output != nil else {
+                return .failure(error ?? .unknown);
+            }
+            return .success(output!);
+        })
+        switch result {
+        case .failure(let error):
+            return .failure(error);
+        case .success(let preKeySignalMessage):
+            defer {
+                signal_buffer_free(preKeySignalMessage);
+            }
+            return .success(Data(bytes: signal_buffer_data(preKeySignalMessage), count: signal_buffer_len(preKeySignalMessage)));
+        }
+    }
+    
+    fileprivate func decryptSignalMessage(key: Key) -> Result<Data, SignalError> {
+        let result = key.key.withUnsafeBytes({ (bytes) -> Result<OpaquePointer,SignalError> in
+            var output: OpaquePointer?;
+            var signalMessage: OpaquePointer?;
+            var error = SignalError.from(code: signal_message_deserialize(&signalMessage, bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), key.key.count, self.context.globalContext));
+            guard error == nil && signalMessage != nil else {
+                return .failure(error ?? .unknown);
+            }
+            defer {
+                signal_type_unref(signalMessage);
+            }
+            error = SignalError.from(code: session_cipher_decrypt_signal_message(cipher, signalMessage, nil, &output));
+            guard error == nil && output != nil else {
+                return .failure(error ?? .unknown);
+            }
+            return .success(output!);
+        });
+        switch result {
+        case .failure(let error):
+            return .failure(error);
+        case .success(let signalMessage):
+            defer {
+                signal_buffer_free(signalMessage);
+            }
+            return .success(Data(bytes: signal_buffer_data(signalMessage), count: signal_buffer_len(signalMessage)));
+        }
+    }
+    
+    open class Key {
+        
+        public let key: Data;
+        public let deviceId: Int32;
+        public let prekey: Bool;
+        
+        public init(key: Data, deviceId: Int32, prekey: Bool) {
+            self.key = key;
+            self.deviceId = deviceId;
+            self.prekey = prekey;
+        }
+        
+    }
+    
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/SignalStorage.swift

@@ -0,0 +1,396 @@
+//
+// SignalStorage.swift
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+
+import Foundation
+import libsignal
+
+open class SignalStorage {
+    
+    public let sessionStore: SignalSessionStoreProtocol;
+    public let preKeyStore: SignalPreKeyStoreProtocol;
+    public let signedPreKeyStore: SignalSignedPreKeyStoreProtocol;
+    public let identityKeyStore: SignalIdentityKeyStoreProtocol;
+    public let senderKeyStore: SignalSenderKeyStoreProtocol;
+    
+    fileprivate(set) var storeContext: OpaquePointer?;
+    
+    public init(sessionStore: SignalSessionStoreProtocol, preKeyStore: SignalPreKeyStoreProtocol, signedPreKeyStore: SignalSignedPreKeyStoreProtocol, identityKeyStore: SignalIdentityKeyStoreProtocol, senderKeyStore: SignalSenderKeyStoreProtocol) {
+        self.sessionStore = sessionStore;
+        self.preKeyStore = preKeyStore;
+        self.signedPreKeyStore = signedPreKeyStore;
+        self.identityKeyStore = identityKeyStore;
+        self.senderKeyStore = senderKeyStore;
+    }
+    
+    deinit {
+        if storeContext != nil {
+            signal_protocol_store_context_destroy(storeContext);
+        }
+        storeContext = nil;
+    }
+    
+    open func setup(withContext context: SignalContext) {
+        signal_protocol_store_context_create(&storeContext, context.globalContext);
+        
+        var sessionStoreCallbacks = signal_protocol_session_store();
+        sessionStoreCallbacks.load_session_func = load_session_func;
+        sessionStoreCallbacks.get_sub_device_sessions_func = get_sub_device_sessions_func;
+        sessionStoreCallbacks.store_session_func = store_session_func;
+        sessionStoreCallbacks.contains_session_func = contains_session_func;
+        sessionStoreCallbacks.delete_session_func = delete_session_func;
+        sessionStoreCallbacks.delete_all_sessions_func = delete_all_sessions_func;
+        sessionStoreCallbacks.destroy_func = destroy_func;
+        sessionStoreCallbacks.user_data = SignalContext.bridge(self.sessionStore as AnyObject);
+        
+        signal_protocol_store_context_set_session_store(storeContext, &sessionStoreCallbacks);
+        
+        var preKeyStoreCallbacks = signal_protocol_pre_key_store();
+        preKeyStoreCallbacks.load_pre_key = load_pre_key;
+        preKeyStoreCallbacks.store_pre_key = store_pre_key;
+        preKeyStoreCallbacks.contains_pre_key = contains_pre_key;
+        preKeyStoreCallbacks.remove_pre_key = remove_pre_key;
+        preKeyStoreCallbacks.destroy_func = destroy_func;
+        preKeyStoreCallbacks.user_data = SignalContext.bridge(self.preKeyStore as AnyObject);
+        
+        signal_protocol_store_context_set_pre_key_store(storeContext, &preKeyStoreCallbacks);
+
+        var signedPreKeyStoreCallbacks = signal_protocol_signed_pre_key_store();
+        signedPreKeyStoreCallbacks.load_signed_pre_key = load_signed_pre_key;
+        signedPreKeyStoreCallbacks.store_signed_pre_key = store_signed_pre_key;
+        signedPreKeyStoreCallbacks.contains_signed_pre_key = contains_signed_pre_key;
+        signedPreKeyStoreCallbacks.remove_signed_pre_key = remove_signed_pre_key;
+        signedPreKeyStoreCallbacks.destroy_func = destroy_func;
+        signedPreKeyStoreCallbacks.user_data = SignalContext.bridge(self.signedPreKeyStore as AnyObject);
+        
+        signal_protocol_store_context_set_signed_pre_key_store(storeContext, &signedPreKeyStoreCallbacks);
+
+        var identityKeyStoreCallbacks = signal_protocol_identity_key_store();
+        identityKeyStoreCallbacks.get_identity_key_pair = get_identity_key_pair;
+        identityKeyStoreCallbacks.get_local_registration_id = get_local_registration_id;
+        identityKeyStoreCallbacks.save_identity = save_identity;
+        identityKeyStoreCallbacks.is_trusted_identity = is_trusted_identity;
+        identityKeyStoreCallbacks.destroy_func = destroy_func;
+        identityKeyStoreCallbacks.user_data = SignalContext.bridge(self.identityKeyStore as AnyObject);
+        
+        signal_protocol_store_context_set_identity_key_store(storeContext, &identityKeyStoreCallbacks);
+        
+        var senderKeyStoreCallbacks = signal_protocol_sender_key_store();
+        senderKeyStoreCallbacks.store_sender_key = store_sender_key;
+        senderKeyStoreCallbacks.load_sender_key = load_sender_key;
+        senderKeyStoreCallbacks.destroy_func = destroy_func;
+        identityKeyStoreCallbacks.user_data = SignalContext.bridge(self.senderKeyStore as AnyObject);
+        
+        signal_protocol_store_context_set_sender_key_store(storeContext, &senderKeyStoreCallbacks);
+    }
+    
+    open func regenerateKeys(wipe: Bool = false) -> Bool {
+        return false;
+    };
+}
+
+public protocol SignalSessionStoreProtocol: AnyObject {
+
+    func sessionRecord(forAddress address: SignalAddress) -> Data?;
+ 
+    func allDevices(for: String, activeAndTrusted: Bool) -> [Int32];
+    
+    func storeSessionRecord(_ data: Data, forAddress: SignalAddress) -> Bool;
+    
+    func containsSessionRecord(forAddress: SignalAddress) -> Bool;
+    
+    func deleteSessionRecord(forAddress: SignalAddress) -> Bool;
+    
+    func deleteAllSessions(for: String) -> Bool;
+}
+
+public protocol SignalPreKeyStoreProtocol: AnyObject {
+    
+    func currentPreKeyId() -> UInt32;
+    
+    func loadPreKey(withId: UInt32) -> Data?;
+    
+    func storePreKey(_ data: Data, withId: UInt32) -> Bool;
+    
+    func containsPreKey(withId: UInt32) -> Bool;
+    
+    func deletePreKey(withId: UInt32) -> Bool;
+    
+    func flushDeletedPreKeys() -> Bool;
+}
+
+public protocol SignalSignedPreKeyStoreProtocol: AnyObject {
+
+    func countSignedPreKeys() -> Int;
+    
+    func loadSignedPreKey(withId: UInt32) -> Data?;
+    
+    func storeSignedPreKey(_ data: Data, withId: UInt32) -> Bool;
+    
+    func containsSignedPreKey(withId: UInt32) -> Bool;
+    
+    func deleteSignedPreKey(withId: UInt32) -> Bool;
+}
+
+public protocol SignalIdentityKeyStoreProtocol: AnyObject {
+    
+    func keyPair() -> SignalIdentityKeyPairProtocol?;
+    func localRegistrationId() -> UInt32;
+    
+    func save(identity: SignalAddress, key: SignalIdentityKeyProtocol?) -> Bool;
+    func isTrusted(identity: SignalAddress, key: SignalIdentityKeyProtocol?) -> Bool;
+    func save(identity: SignalAddress, publicKeyData: Data?) -> Bool;
+    func isTrusted(identity: SignalAddress, publicKeyData: Data?) -> Bool;
+    
+    func setStatus(_ status: IdentityStatus, forIdentity: SignalAddress) -> Bool;
+    func setStatus(active: Bool, forIdentity: SignalAddress) -> Bool;
+
+    func identities(forName: String) -> [Identity];
+    func identityFingerprint(forAddress address: SignalAddress) -> String?
+}
+
+public protocol SignalIdentityKeyProtocol: AnyObject {
+    var publicKeyPointer: OpaquePointer { get }
+    var publicKey: Data? { get }
+    
+    func serialized() -> Data;
+}
+
+public protocol SignalIdentityKeyPairProtocol: SignalIdentityKeyProtocol {
+    var keyPairPointer: OpaquePointer? { get }
+    var keyPair: Data? { get }
+    var privateKeyPointer: OpaquePointer { get }
+    var privateKey: Data? { get }
+}
+
+public protocol SignalSenderKeyStoreProtocol: AnyObject {
+    
+    func storeSenderKey(_ key: Data, address: SignalAddress?, groupId: String?) -> Bool;
+    func loadSenderKey(forAddress: SignalAddress?, groupId: String?) -> Data?;
+}
+
+fileprivate func load_session_func(record: UnsafeMutablePointer<OpaquePointer?>?, userRecord: UnsafeMutablePointer<OpaquePointer?>?, address: UnsafePointer<signal_protocol_address>?, userData: UnsafeMutableRawPointer?) -> CInt {
+    let sessionStore: SignalSessionStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSessionStoreProtocol;
+    guard let addr = SignalAddress(from: address) else {
+        return -1;
+    }
+    
+    guard let data = sessionStore.sessionRecord(forAddress: addr) else {
+        return 0;
+    }
+    
+    data.withUnsafeBytes({ (ptr: UnsafeRawBufferPointer) -> Void in
+        record?.initialize(to: signal_buffer_create(ptr.baseAddress!.assumingMemoryBound(to: UInt8.self), data.count));
+    })
+    return 1;
+}
+
+fileprivate func get_sub_device_sessions_func(sessions: UnsafeMutablePointer<OpaquePointer?>?, name namePtr: UnsafePointer<Int8>?, nameLen: Int, userData: UnsafeMutableRawPointer?) -> CInt {
+    let sessionStore: SignalSessionStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSessionStoreProtocol;
+    guard let name = String(validatingUTF8: namePtr!) else {
+        return -1;
+    }
+    let devices = sessionStore.allDevices(for: name, activeAndTrusted: false);
+    guard let list = signal_int_list_alloc() else {
+        return -1;
+    }
+    
+    devices.forEach { device in
+        signal_int_list_push_back(list, device);
+    }
+    return CInt(devices.count);
+}
+
+fileprivate func store_session_func(address: UnsafePointer<signal_protocol_address>?, record: UnsafeMutablePointer<UInt8>?, recordLen: Int, userRecord: UnsafeMutablePointer<UInt8>?, userRecordLen: Int, userData: UnsafeMutableRawPointer?) -> CInt {
+    let sessionStore: SignalSessionStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSessionStoreProtocol;
+    guard let addr = SignalAddress(from: address) else {
+        return -1;
+    }
+    let data = Data(bytes: record!, count: recordLen);
+    return sessionStore.storeSessionRecord(data, forAddress: addr) ? 0 : -1;
+}
+
+fileprivate func contains_session_func(address: UnsafePointer<signal_protocol_address>?, userData: UnsafeMutableRawPointer?) -> CInt {
+    let sessionStore: SignalSessionStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSessionStoreProtocol;
+    guard let addr = SignalAddress(from: address) else {
+        return -1;
+    }
+    return sessionStore.containsSessionRecord(forAddress: addr) ? 1 : 0;
+}
+
+fileprivate func delete_session_func(address: UnsafePointer<signal_protocol_address>?, userData: UnsafeMutableRawPointer?) -> CInt {
+    let sessionStore: SignalSessionStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSessionStoreProtocol;
+    guard let addr = SignalAddress(from: address) else {
+        return -1;
+    }
+    return sessionStore.deleteSessionRecord(forAddress: addr) ? 1 : 0;
+}
+
+fileprivate func delete_all_sessions_func(name namePtr: UnsafePointer<Int8>?, nameLen: Int, userData: UnsafeMutableRawPointer?) -> CInt {
+    let sessionStore: SignalSessionStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSessionStoreProtocol;
+    guard let name = String(validatingUTF8: namePtr!) else {
+        return -1;
+    }
+    
+    return sessionStore.deleteAllSessions(for: name) ? 1 : 0;
+}
+
+fileprivate func destroy_func(userData: UnsafeMutableRawPointer?) {
+    
+}
+
+fileprivate func load_pre_key(record: UnsafeMutablePointer<OpaquePointer?>?, preKeyId: UInt32, userData: UnsafeMutableRawPointer?) -> CInt {
+    let preKeyStore: SignalPreKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalPreKeyStoreProtocol;
+    guard let preKey = preKeyStore.loadPreKey(withId: preKeyId) else {
+        return SG_ERR_INVALID_KEY_ID;
+    }
+    
+    preKey.withUnsafeBytes({ (bytes: UnsafeRawBufferPointer)->Void in
+        let buffer = signal_buffer_create(bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), preKey.count);
+        record?.initialize(to: buffer);
+    })
+    return SG_SUCCESS;
+}
+
+fileprivate func store_pre_key(preKeyId: UInt32, record: UnsafeMutablePointer<UInt8>?, recordLen: Int, userData: UnsafeMutableRawPointer?) -> CInt {
+    let preKeyStore: SignalPreKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalPreKeyStoreProtocol;
+     let data = Data(bytes: record!, count: recordLen);
+    return preKeyStore.storePreKey(data, withId: preKeyId) ? 0 : -1;
+}
+
+fileprivate func contains_pre_key(preKeyId: UInt32, userData: UnsafeMutableRawPointer?) -> CInt {
+    let preKeyStore: SignalPreKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalPreKeyStoreProtocol;
+    return preKeyStore.containsPreKey(withId: preKeyId) ? 1 : 0;
+}
+
+fileprivate func remove_pre_key(preKeyId: UInt32, userData: UnsafeMutableRawPointer?) -> CInt {
+    let preKeyStore: SignalPreKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalPreKeyStoreProtocol;
+    return preKeyStore.deletePreKey(withId: preKeyId) ? 0 : -1;
+}
+
+fileprivate func load_signed_pre_key(record: UnsafeMutablePointer<OpaquePointer?>?, signedPreKeyId: UInt32, userData: UnsafeMutableRawPointer?) -> CInt {
+    let signedPreKeyStore: SignalSignedPreKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSignedPreKeyStoreProtocol;
+    guard let preKey = signedPreKeyStore.loadSignedPreKey(withId: signedPreKeyId) else {
+        return SG_ERR_INVALID_KEY_ID;
+    }
+    
+    preKey.withUnsafeBytes({ (bytes: UnsafeRawBufferPointer)->Void in
+        let buffer = signal_buffer_create(bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), preKey.count);
+        record?.initialize(to: buffer);
+    })
+    return SG_SUCCESS;
+}
+
+fileprivate func store_signed_pre_key(signedPreKeyId: UInt32, record: UnsafeMutablePointer<UInt8>?, recordLen: Int, userData: UnsafeMutableRawPointer?) -> CInt {
+    let signedPreKeyStore: SignalSignedPreKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSignedPreKeyStoreProtocol;
+    let data = Data(bytes: record!, count: recordLen);
+    return signedPreKeyStore.storeSignedPreKey(data, withId: signedPreKeyId) ? 0 : -1;
+}
+
+fileprivate func contains_signed_pre_key(signedPreKeyId: UInt32, userData: UnsafeMutableRawPointer?) -> CInt {
+    let signedPreKeyStore: SignalSignedPreKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSignedPreKeyStoreProtocol;
+    return signedPreKeyStore.containsSignedPreKey(withId: signedPreKeyId) ? 1 : 0;
+}
+
+fileprivate func remove_signed_pre_key(signedPreKeyId: UInt32, userData: UnsafeMutableRawPointer?) -> CInt {
+    let signedPreKeyStore: SignalSignedPreKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSignedPreKeyStoreProtocol;
+    return signedPreKeyStore.deleteSignedPreKey(withId: signedPreKeyId) ? 0 : -1;
+}
+
+fileprivate func get_identity_key_pair(publicData: UnsafeMutablePointer<OpaquePointer?>?, privateData: UnsafeMutablePointer<OpaquePointer?>?, userData: UnsafeMutableRawPointer?) -> CInt {
+    let identityKeyStore: SignalIdentityKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalIdentityKeyStoreProtocol;
+    guard let keyPair = identityKeyStore.keyPair() else {
+        return -1;
+    }
+    
+    if let publicKey = keyPair.publicKey {
+        publicKey.withUnsafeBytes { (bytes: UnsafeRawBufferPointer) -> Void in
+            let buffer = signal_buffer_create(bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), publicKey.count);
+            publicData?.initialize(to: buffer);
+        }
+    }
+
+    if let privateKey = keyPair.privateKey {
+        privateKey.withUnsafeBytes { (bytes: UnsafeRawBufferPointer) -> Void in
+            let buffer = signal_buffer_create(bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), privateKey.count);
+            privateData?.initialize(to: buffer);
+        }
+    }
+    
+    return 0;
+}
+
+fileprivate func get_local_registration_id(userData: UnsafeMutableRawPointer?, registrationId: UnsafeMutablePointer<UInt32>?) -> CInt {
+    let identityKeyStore: SignalIdentityKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalIdentityKeyStoreProtocol;
+    let regId = identityKeyStore.localRegistrationId();
+    if regId > 0 {
+        registrationId?.initialize(to: regId);
+        return 0;
+    } else {
+        return -1;
+    }
+}
+
+fileprivate func save_identity(address: UnsafePointer<signal_protocol_address>?, keyData: UnsafeMutablePointer<UInt8>?, keyLen: Int, userData: UnsafeMutableRawPointer?) -> CInt {
+    let identityKeyStore: SignalIdentityKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalIdentityKeyStoreProtocol;
+    guard let addr = SignalAddress(from: address) else {
+        return -1;
+    }
+    return identityKeyStore.save(identity: addr, publicKeyData: keyData == nil ? nil : Data(bytes: keyData!, count: keyLen)) ? 0 : -1;
+}
+
+fileprivate func is_trusted_identity(address: UnsafePointer<signal_protocol_address>?, keyData: UnsafeMutablePointer<UInt8>?, keyLen: Int, userData: UnsafeMutableRawPointer?) -> CInt {
+    let identityKeyStore: SignalIdentityKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalIdentityKeyStoreProtocol;
+    guard let addr = SignalAddress(from: address) else {
+        return -1;
+    }
+    return identityKeyStore.isTrusted(identity: addr, publicKeyData: Data(bytes: keyData!, count: keyLen)) ? 1 : 0;
+}
+
+fileprivate func store_sender_key(senderKeyName: UnsafePointer<signal_protocol_sender_key_name>?, record: UnsafeMutablePointer<UInt8>?, recordLen: Int, userRecord: UnsafeMutablePointer<UInt8>?, userRecordLen: Int, userData: UnsafeMutableRawPointer?) -> CInt {
+    let senderKeyStore: SignalSenderKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSenderKeyStoreProtocol;
+    
+    var sender = senderKeyName?.pointee.sender;
+    let groupId = senderKeyName?.pointee.group_id;
+    let group = groupId != nil ? String(validatingUTF8: groupId!) : nil;
+    let addr = SignalAddress(from: &sender)
+    let key = Data(bytes: record!, count: recordLen);
+    
+    return senderKeyStore.storeSenderKey(key, address: addr, groupId: group) ? 0 : -1;
+}
+
+fileprivate func load_sender_key(record: UnsafeMutablePointer<OpaquePointer?>?, userRecord: UnsafeMutablePointer<OpaquePointer?>?, senderKeyName: UnsafePointer<signal_protocol_sender_key_name>?, userData: UnsafeMutableRawPointer?) -> CInt {
+    let senderKeyStore: SignalSenderKeyStoreProtocol = SignalContext.bridge(fromPointer: userData!) as! SignalSenderKeyStoreProtocol;
+
+    var sender = senderKeyName?.pointee.sender;
+    let groupId = senderKeyName?.pointee.group_id;
+    let group = groupId != nil ? String(validatingUTF8: groupId!) : nil;
+    let addr = SignalAddress(from: &sender)
+
+    if let key = senderKeyStore.loadSenderKey(forAddress: addr, groupId: group) {
+        key.withUnsafeBytes({ (bytes: UnsafeRawBufferPointer) -> Void in
+            let buffer = signal_buffer_create(bytes.baseAddress!.assumingMemoryBound(to: UInt8.self), key.count);
+            record?.initialize(to: buffer);
+        });
+        return 1;
+    } else {
+        return 0;
+    }
+}

ThirdParty/MartinOMEMO/Sources/MartinOMEMO/TigaseSwift_OMEMO.h

@@ -0,0 +1,37 @@
+//
+// TigaseSwift_OMEMO.h
+//
+// TigaseSwift OMEMO
+// Copyright (C) 2019 "Tigase, Inc." <office@tigase.com>
+//
+// This program 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, either version 3 of the License, or
+// (at your option) any later version.
+//
+// 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. Look for COPYING file in the top folder.
+// If not, see https://www.gnu.org/licenses/.
+//
+//
+
+#import "protocol.h"
+#import "signal_protocol.h"
+#import "key_helper.h"
+#import "session_builder.h"
+#import "session_cipher.h"
+
+//! Project version number for TigaseSwift_OMEMO.
+//FOUNDATION_EXPORT double TigaseSwift_OMEMOVersionNumber;
+
+//! Project version string for TigaseSwift_OMEMO.
+//FOUNDATION_EXPORT const unsigned char TigaseSwift_OMEMOVersionString[];
+
+// In this header, you should import all the public headers of your framework using statements like #import <TigaseSwift_OMEMO/PublicHeader.h>
+
+

ThirdParty/MartinOMEMO/Tests/LinuxMain.swift

@@ -0,0 +1,7 @@
+import XCTest
+
+import MartinOMEMOTests
+
+var tests = [XCTestCaseEntry]()
+tests += MartinOMEMOTests.allTests()
+XCTMain(tests)

ThirdParty/MartinOMEMO/Tests/MartinOMEMOTests/MartinOMEMOTests.swift

@@ -0,0 +1,15 @@
+import XCTest
+@testable import MartinOMEMO
+
+final class MartinOMEMOTests: XCTestCase {
+    func testExample() {
+        // This is an example of a functional test case.
+        // Use XCTAssert and related functions to verify your tests produce the correct
+        // results.
+
+    }
+
+    static var allTests = [
+        ("testExample", testExample),
+    ]
+}

ThirdParty/MartinOMEMO/Tests/MartinOMEMOTests/XCTestManifests.swift

@@ -0,0 +1,9 @@
+import XCTest
+
+#if !canImport(ObjectiveC)
+public func allTests() -> [XCTestCaseEntry] {
+    return [
+        testCase(MartinOMEMOTests.allTests),
+    ]
+}
+#endif